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B6-huTFRC/huSNCA(3'UTR)
Product ID:
C001873
Strain:
C57BL/6NCya
Status:
Description:
The Transferrin receptor (TFRC) gene encodes Transferrin Receptor 1 (TFR1), a protein that is expressed at low levels in most normal cells but shows increased expression in highly proliferative cells, such as basal epidermal cells, intestinal epithelium, and certain activated immune cells. Brain capillary endothelial cells, which constitute the blood-brain barrier (BBB), also express this receptor at high levels [1]. TFR1 plays a critical role in maintaining iron metabolism and homeostasis by facilitating receptor-mediated endocytosis of iron-bound transferrin (Tf) via Tf cycling, thereby promoting iron uptake [2]. Cellular iron deficiency can lead to apoptosis, while cellular transformation requires substantial iron to sustain proliferation, with iron overload contributing to tumor progression. The high expression of TFR1 in many tumors makes it a potential tumor marker, offering a target for therapies to inhibit tumor growth and metastasis [1]. Moreover, TFR1 is implicated in anemia and iron metabolism disorders. Studies have shown that elevated TFR1 expression in cardiomyocytes is associated with exacerbated inflammation in myocarditis patients [3]. Various clinical drugs targeting TFR1 are currently under development, including antisense oligonucleotides (ASOs), antibody-drug conjugates (ADCs), and antibody-oligonucleotide conjugates, applicable to diseases such as cancer, anemia, and neurodegenerative disorders. Research indicates that enhancing antibody transport across the blood-brain barrier via TFR1, by forming specific bispecific antibodies with anti-β-amyloid antibodies, can improve therapeutic outcomes in Alzheimer's patients [4-5]. As research progresses, TFR1 is expected to become an effective clinical target for multiple diseases and a synergistic target for drug delivery across the blood-brain barrier (BBB).
Parkinson's disease (PD) is a neurodegenerative disease with a high prevalence mainly in the middle-aged and elderly population. It is the second most common neurodegenerative disease after Alzheimer's disease (AD). The main clinical symptoms include resting tremors, limb stiffness, bradykinesia, loss of voluntary movement, etc. The typical pathological process of PD is the formation of Lewy bodies (LB) in the central nervous system (CNS), which results in the gradual death and loss of dopaminergic neurons, leading to the disease [6-7]. The main components of Lewy bodies are insoluble aggregates of abnormal α-synuclein (α-syn), and the SNCA gene, which encodes α-synuclein, is one of the key causative genes in Parkinson's disease. Mutations in this gene cause overexpression of α-syn, leading to the formation of Lewy bodies, ultimately leading to PD [8]. In addition, SNCA mutations are also associated with diseases such as dementia with Lewy bodies (DLB) and multiple system atrophy (MSA).
B6-huTFRC/huSNCA(3'UTR) mice are a dual-gene humanized model generated by crossing B6-huTFRC mice (Catalog No.: C001860) with B6-hSNCA (3'UTR) mice (Catalog No.: C001698). This model can be used for research on neurodegenerative diseases such as Parkinson's disease (PD), dementia with Lewy bodies (DLB), and multiple system atrophy (MSA), as well as iron metabolism disorders and tumorigenesis and development. It is also applicable for the development of TFRC/SNCA-targeted drugs.
The Transferrin receptor (TFRC) gene encodes Transferrin Receptor 1 (TFR1), a protein that is expressed at low levels in most normal cells but shows increased expression in highly proliferative cells, such as basal epidermal cells, intestinal epithelium, and certain activated immune cells. Brain capillary endothelial cells, which constitute the blood-brain barrier (BBB), also express this receptor at high levels [1]. TFR1 plays a critical role in maintaining iron metabolism and homeostasis by facilitating receptor-mediated endocytosis of iron-bound transferrin (Tf) via Tf cycling, thereby promoting iron uptake [2]. Cellular iron deficiency can lead to apoptosis, while cellular transformation requires substantial iron to sustain proliferation, with iron overload contributing to tumor progression. The high expression of TFR1 in many tumors makes it a potential tumor marker, offering a target for therapies to inhibit tumor growth and metastasis [1]. Moreover, TFR1 is implicated in anemia and iron metabolism disorders. Studies have shown that elevated TFR1 expression in cardiomyocytes is associated with exacerbated inflammation in myocarditis patients [3]. Various clinical drugs targeting TFR1 are currently under development, including antisense oligonucleotides (ASOs), antibody-drug conjugates (ADCs), and antibody-oligonucleotide conjugates, applicable to diseases such as cancer, anemia, and neurodegenerative disorders. Research indicates that enhancing antibody transport across the blood-brain barrier via TFR1, by forming specific bispecific antibodies with anti-β-amyloid antibodies, can improve therapeutic outcomes in Alzheimer's patients [4-5]. As research progresses, TFR1 is expected to become an effective clinical target for multiple diseases and a synergistic target for drug delivery across the blood-brain barrier (BBB).
Parkinson's disease (PD) is a neurodegenerative disease with a high prevalence mainly in the middle-aged and elderly population. It is the second most common neurodegenerative disease after Alzheimer's disease (AD). The main clinical symptoms include resting tremors, limb stiffness, bradykinesia, loss of voluntary movement, etc. The typical pathological process of PD is the formation of Lewy bodies (LB) in the central nervous system (CNS), which results in the gradual death and loss of dopaminergic neurons, leading to the disease [6-7]. The main components of Lewy bodies are insoluble aggregates of abnormal α-synuclein (α-syn), and the SNCA gene, which encodes α-synuclein, is one of the key causative genes in Parkinson's disease. Mutations in this gene cause overexpression of α-syn, leading to the formation of Lewy bodies, ultimately leading to PD [8]. In addition, SNCA mutations are also associated with diseases such as dementia with Lewy bodies (DLB) and multiple system atrophy (MSA).
B6-huTFRC/huSNCA(3'UTR) mice are a dual-gene humanized model generated by crossing B6-huTFRC mice (Catalog No.: C001860) with B6-hSNCA (3'UTR) mice (Catalog No.: C001698). This model can be used for research on neurodegenerative diseases such as Parkinson's disease (PD), dementia with Lewy bodies (DLB), and multiple system atrophy (MSA), as well as iron metabolism disorders and tumorigenesis and development. It is also applicable for the development of TFRC/SNCA-targeted drugs.
B6-hSNCA
Product ID:
C001427
Strain:
C57BL/6NCya
Status:
Description:
Parkinson's disease (PD) is a degenerative disease of the nervous system that occurs mostly in middle-aged and elderly people and is the second most common neurodegenerative disease after Alzheimer's disease (AD). Clinical symptoms of PD are characterized by resting tremors, limb stiffness, bradykinesia, and lack of voluntary movement. The typical pathology of PD is characterized by the formation of Lewy bodies (LB) in the central nervous system (CNS). This process leads to the progressive death and loss of dopaminergic neurons, ultimately resulting in the development of Parkinson's disease. Lewy bodies are mainly composed of insoluble aggregates of abnormal α-synuclein (α-syn).
The SNCA gene, one of the key pathogenic genes in Parkinson's disease, encodes α-syn. Mutations in SNCA can cause overexpression of α-syn, which leads to the formation of Lewy bodies and ultimately PD. Therefore, the SNCA gene is considered an effective drug target for the treatment of PD [1].
Gene therapy is one of the ways to treat PD, among which the development prospects of SNCA-targeted drugs are particularly prominent. The drug pipelines targeting SNCA are widely laid out, and ASO, siRNA, and CRISPR therapies have emerged [2].
This strain is a mouse Snca gene humanized model and can be used for research on PD. The homozygous B6-hSNCA mice are viable and fertile. Leveraging its proprietary TurboKnockout fusion BAC recombination technology, Cyagen can also generate hot mutation models based on this strain and provide customized services for specific mutations to meet the experimental needs in pharmacology and other fields related to PD.
Parkinson's disease (PD) is a degenerative disease of the nervous system that occurs mostly in middle-aged and elderly people and is the second most common neurodegenerative disease after Alzheimer's disease (AD). Clinical symptoms of PD are characterized by resting tremors, limb stiffness, bradykinesia, and lack of voluntary movement. The typical pathology of PD is characterized by the formation of Lewy bodies (LB) in the central nervous system (CNS). This process leads to the progressive death and loss of dopaminergic neurons, ultimately resulting in the development of Parkinson's disease. Lewy bodies are mainly composed of insoluble aggregates of abnormal α-synuclein (α-syn).
The SNCA gene, one of the key pathogenic genes in Parkinson's disease, encodes α-syn. Mutations in SNCA can cause overexpression of α-syn, which leads to the formation of Lewy bodies and ultimately PD. Therefore, the SNCA gene is considered an effective drug target for the treatment of PD [1].
Gene therapy is one of the ways to treat PD, among which the development prospects of SNCA-targeted drugs are particularly prominent. The drug pipelines targeting SNCA are widely laid out, and ASO, siRNA, and CRISPR therapies have emerged [2].
This strain is a mouse Snca gene humanized model and can be used for research on PD. The homozygous B6-hSNCA mice are viable and fertile. Leveraging its proprietary TurboKnockout fusion BAC recombination technology, Cyagen can also generate hot mutation models based on this strain and provide customized services for specific mutations to meet the experimental needs in pharmacology and other fields related to PD.
B6-hTARDBP
Product ID:
C001418
Strain:
C57BL/6JCya
Status:
Description:
Amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease, is a fatal progressive neurodegenerative disease characterized by the degeneration and death of motor neurons in the central nervous system. This loss of motor neurons leads to progressive muscle weakness and atrophy, ultimately culminating in the complete loss of voluntary muscle control. Consequently, ALS can induce speech, swallowing, and respiratory difficulties [1]. Critically, unlike Alzheimer's disease, ALS does not necessarily impact higher-order cognitive functions. Remarkably, patients in advanced stages of the disease can maintain clear thinking and retain their premorbid memory, personality, and intelligence. Several genes have been identified as causative factors in ALS, including SOD1, ALS2, TARDBP, and FUS. Among them, TARDBP (TAR DNA-binding protein) is a gene encoding a protein involved in diverse cellular functions, including facilitating nuclear protein import, regulating circadian rhythms, and maintaining protein stability [2]. Mutations in the TARDBP gene are linked to ALS. These mutations can lead to abnormal TDP-43 protein accumulation and its mislocalization to the cytoplasm, a key pathological hallmark of the disease [3].
TARDBP-targeted therapy is mainly based on monoclonal antibody drugs, most of which are still in the preclinical stage of development. Oligonucleotides such as ASO and gene therapy have also been reported in the literature. These drugs are mainly used for the treatment of neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). TARDBP is a new and popular target for the treatment of ALS. Preclinical disease research models are mainly transgenic (TG) or point mutation (PM) mice. To advance TARDBP-targeted drug therapies, especially gene and oligonucleotide therapies, Cyagen has independently developed a mouse Tardbp gene humanized model, which replaces the mouse Tardbp gene with the human TARDBP gene through gene editing technology. It can be used to study neurodegenerative diseases such as amyotrophic lateral sclerosis and frontotemporal dementia. The homozygous B6-hTARDBP mice are viable and fertile. In addition, based on the technological innovation of TurboKnockout fusion BAC recombination, Cyagen can also provide popular point mutation disease models based on this model and can provide customized services according to different point mutations to meet the needs of researchers for amyotrophic lateral sclerosis and frontotemporal dementia.
Amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease, is a fatal progressive neurodegenerative disease characterized by the degeneration and death of motor neurons in the central nervous system. This loss of motor neurons leads to progressive muscle weakness and atrophy, ultimately culminating in the complete loss of voluntary muscle control. Consequently, ALS can induce speech, swallowing, and respiratory difficulties [1]. Critically, unlike Alzheimer's disease, ALS does not necessarily impact higher-order cognitive functions. Remarkably, patients in advanced stages of the disease can maintain clear thinking and retain their premorbid memory, personality, and intelligence. Several genes have been identified as causative factors in ALS, including SOD1, ALS2, TARDBP, and FUS. Among them, TARDBP (TAR DNA-binding protein) is a gene encoding a protein involved in diverse cellular functions, including facilitating nuclear protein import, regulating circadian rhythms, and maintaining protein stability [2]. Mutations in the TARDBP gene are linked to ALS. These mutations can lead to abnormal TDP-43 protein accumulation and its mislocalization to the cytoplasm, a key pathological hallmark of the disease [3].
TARDBP-targeted therapy is mainly based on monoclonal antibody drugs, most of which are still in the preclinical stage of development. Oligonucleotides such as ASO and gene therapy have also been reported in the literature. These drugs are mainly used for the treatment of neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). TARDBP is a new and popular target for the treatment of ALS. Preclinical disease research models are mainly transgenic (TG) or point mutation (PM) mice. To advance TARDBP-targeted drug therapies, especially gene and oligonucleotide therapies, Cyagen has independently developed a mouse Tardbp gene humanized model, which replaces the mouse Tardbp gene with the human TARDBP gene through gene editing technology. It can be used to study neurodegenerative diseases such as amyotrophic lateral sclerosis and frontotemporal dementia. The homozygous B6-hTARDBP mice are viable and fertile. In addition, based on the technological innovation of TurboKnockout fusion BAC recombination, Cyagen can also provide popular point mutation disease models based on this model and can provide customized services according to different point mutations to meet the needs of researchers for amyotrophic lateral sclerosis and frontotemporal dementia.
B6-htau/hGLP-1R
Product ID:
I001221
Strain:
C57BL/6Cya
Status:
Description:
The tau protein, a microtubule-associated protein encoded by MAPT is primarily localized to neuronal axons and plays a critical role in microtubule stability and assembly. By binding to microtubules, tau protein helps to maintain neuronal cell shape. Mutations in MAPT can promote tau aggregation, leading to pathological tau protein accumulation and death of glutamatergic cortical neurons [1]. Additionally, certain MAPT mutations can affect pre-mRNA exon splicing, altering the ratio of 3R to 4R tau protein isoforms and increasing the relative production of 4R-tau protein, which is more prone to fibril formation [2].
The GLP-1 receptor (GLP-1R) gene encodes a protein that serves as the receptor for the glucagon-like peptide 1 (GLP-1) hormone, belonging to the glucagon receptor subfamily within the class B G-protein-coupled receptors (GPCRs). G proteins are a class of intracellular signal transduction proteins typically associated with seven-transmembrane receptors (GPCRs). When a GPCR binds to its ligand, it activates the G protein, causing it to dissociate from the Gβγ subunit and initiate downstream effects through interactions with membrane-bound effector molecules. This signaling process is known as canonical G protein signaling. GLP-1R is a multi-transmembrane protein characterized by a typical seven-transmembrane core domain and a relatively large extracellular domain, which can stimulate glucose-induced insulin secretion [3]. GLP-1R is a cell surface receptor protein widely expressed in tissues such as the brain, small intestine, heart, and lungs. It internalizes in response to GLP-1 and GLP-1 analogs and plays a crucial role in the insulin secretion signaling cascade. Additionally, data from animal models indicate its neuroprotective effects [4-5]. Polymorphisms of this gene are closely associated with diabetes. The GLP1R protein is an important drug target for treating type 2 diabetes and stroke. Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are a new class of antidiabetic drugs in recent years. They activate GLP1R to enhance insulin secretion, suppress glucagon secretion, delay gastric emptying, and reduce food intake through central appetite suppression, lowering blood glucose and weight loss [6].
The B6-htau/hGLP-1R mouse is obtained by mating B6-htau mice (Catalog No.: C001410) with B6-hGLP-1R mice (Catalog No.: C001421). This model can be used for research on neurodegenerative diseases such as frontotemporal dementia (FTD) and Alzheimer's disease (AD), as well as metabolic diseases such as obesity and type 2 diabetes. It is also useful for developing GLP-1 receptor agonist (GLP-1RA) drugs or for the preclinical evaluation of the potential therapeutic effects of GLP-1RA drugs in tauopathy-related diseases like Alzheimer's disease (AD).
The tau protein, a microtubule-associated protein encoded by MAPT is primarily localized to neuronal axons and plays a critical role in microtubule stability and assembly. By binding to microtubules, tau protein helps to maintain neuronal cell shape. Mutations in MAPT can promote tau aggregation, leading to pathological tau protein accumulation and death of glutamatergic cortical neurons [1]. Additionally, certain MAPT mutations can affect pre-mRNA exon splicing, altering the ratio of 3R to 4R tau protein isoforms and increasing the relative production of 4R-tau protein, which is more prone to fibril formation [2].
The GLP-1 receptor (GLP-1R) gene encodes a protein that serves as the receptor for the glucagon-like peptide 1 (GLP-1) hormone, belonging to the glucagon receptor subfamily within the class B G-protein-coupled receptors (GPCRs). G proteins are a class of intracellular signal transduction proteins typically associated with seven-transmembrane receptors (GPCRs). When a GPCR binds to its ligand, it activates the G protein, causing it to dissociate from the Gβγ subunit and initiate downstream effects through interactions with membrane-bound effector molecules. This signaling process is known as canonical G protein signaling. GLP-1R is a multi-transmembrane protein characterized by a typical seven-transmembrane core domain and a relatively large extracellular domain, which can stimulate glucose-induced insulin secretion [3]. GLP-1R is a cell surface receptor protein widely expressed in tissues such as the brain, small intestine, heart, and lungs. It internalizes in response to GLP-1 and GLP-1 analogs and plays a crucial role in the insulin secretion signaling cascade. Additionally, data from animal models indicate its neuroprotective effects [4-5]. Polymorphisms of this gene are closely associated with diabetes. The GLP1R protein is an important drug target for treating type 2 diabetes and stroke. Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are a new class of antidiabetic drugs in recent years. They activate GLP1R to enhance insulin secretion, suppress glucagon secretion, delay gastric emptying, and reduce food intake through central appetite suppression, lowering blood glucose and weight loss [6].
The B6-htau/hGLP-1R mouse is obtained by mating B6-htau mice (Catalog No.: C001410) with B6-hGLP-1R mice (Catalog No.: C001421). This model can be used for research on neurodegenerative diseases such as frontotemporal dementia (FTD) and Alzheimer's disease (AD), as well as metabolic diseases such as obesity and type 2 diabetes. It is also useful for developing GLP-1 receptor agonist (GLP-1RA) drugs or for the preclinical evaluation of the potential therapeutic effects of GLP-1RA drugs in tauopathy-related diseases like Alzheimer's disease (AD).
B6-hTFRC/htau
Product ID:
I001209
Strain:
C57BL/6Cya
Status:
Description:
The Transferrin receptor (TFRC) gene encodes Transferrin Receptor 1 (TFR1), a protein that is expressed at low levels in most normal cells but shows increased expression in highly proliferative cells, such as basal epidermal cells, intestinal epithelium, and certain activated immune cells. Brain capillary endothelial cells, which constitute the blood-brain barrier (BBB), also express this receptor at high levels [1]. TFR1 plays a critical role in maintaining iron metabolism and homeostasis by facilitating receptor-mediated endocytosis of iron-bound transferrin (Tf) via Tf cycling, thereby promoting iron uptake [2]. Cellular iron deficiency can lead to apoptosis, while cellular transformation requires substantial iron to sustain proliferation, with iron overload contributing to tumor progression. The high expression of TFR1 in many tumors makes it a potential tumor marker, offering a target for therapies to inhibit tumor growth and metastasis [1]. Moreover, TFR1 is implicated in anemia and iron metabolism disorders. Studies have shown that elevated TFR1 expression in cardiomyocytes is associated with exacerbated inflammation in myocarditis patients [3].
The tau protein, a microtubule-associated protein encoded by MAPT, is primarily localized to neuronal axons and plays a critical role in microtubule stability and assembly. By binding to microtubules, the tau protein helps to maintain neuronal cell shape. Mutations in MAPT can promote tau aggregation, leading to pathological tau protein accumulation and death of glutamatergic cortical neurons [4]. Additionally, certain MAPT mutations can affect pre-mRNA exon splicing, altering the ratio of 3R to 4R tau protein isoforms and increasing the relative production of 4R-tau protein, which is more prone to fibril formation [5].
The B6-hTFRC/htau mice are a model expressing human TFRC protein and tau protein, generated by crossing B6-hTFRC(CDS) mice (Catalog No.: C001584) with B6-htau mice (Catalog No.: C001410). These mice can be used for research on neurodegenerative diseases and iron metabolism disorders, as well as for the development and preclinical evaluation of TFRC/MAPT-targeted therapeutic agents.
The Transferrin receptor (TFRC) gene encodes Transferrin Receptor 1 (TFR1), a protein that is expressed at low levels in most normal cells but shows increased expression in highly proliferative cells, such as basal epidermal cells, intestinal epithelium, and certain activated immune cells. Brain capillary endothelial cells, which constitute the blood-brain barrier (BBB), also express this receptor at high levels [1]. TFR1 plays a critical role in maintaining iron metabolism and homeostasis by facilitating receptor-mediated endocytosis of iron-bound transferrin (Tf) via Tf cycling, thereby promoting iron uptake [2]. Cellular iron deficiency can lead to apoptosis, while cellular transformation requires substantial iron to sustain proliferation, with iron overload contributing to tumor progression. The high expression of TFR1 in many tumors makes it a potential tumor marker, offering a target for therapies to inhibit tumor growth and metastasis [1]. Moreover, TFR1 is implicated in anemia and iron metabolism disorders. Studies have shown that elevated TFR1 expression in cardiomyocytes is associated with exacerbated inflammation in myocarditis patients [3].
The tau protein, a microtubule-associated protein encoded by MAPT, is primarily localized to neuronal axons and plays a critical role in microtubule stability and assembly. By binding to microtubules, the tau protein helps to maintain neuronal cell shape. Mutations in MAPT can promote tau aggregation, leading to pathological tau protein accumulation and death of glutamatergic cortical neurons [4]. Additionally, certain MAPT mutations can affect pre-mRNA exon splicing, altering the ratio of 3R to 4R tau protein isoforms and increasing the relative production of 4R-tau protein, which is more prone to fibril formation [5].
The B6-hTFRC/htau mice are a model expressing human TFRC protein and tau protein, generated by crossing B6-hTFRC(CDS) mice (Catalog No.: C001584) with B6-htau mice (Catalog No.: C001410). These mice can be used for research on neurodegenerative diseases and iron metabolism disorders, as well as for the development and preclinical evaluation of TFRC/MAPT-targeted therapeutic agents.
B6-hIL13/hIL23A
Product ID:
C001772
Strain:
C57BL/6NCya
Status:
Description:
Interleukin-13, encoded by the IL13 gene, is a key type 2 immune response cytokine, predominantly expressed by activated Th2 helper T cells, type 2 innate lymphoid cells (ILC2s), and mast cells, and central to type 2 immune responses elicited by allergens or other stimuli [1]. The IL-13 protein, a ~13 kDa molecule with a four-helix bundle structure, mediates its biological effects by binding to the cell surface receptor IL-13Rα1 and recruiting the IL-4Rα chain to form a functional receptor complex, thereby activating the downstream JAK/STAT6 signaling pathway [2]. Key functions of IL-13 include promoting B cell maturation and plasma cell differentiation, inducing IgE isotype switching, and suppressing the pro-inflammatory activity of macrophages, leading to reduced production of pro-inflammatory cytokines and chemokines [3]. Furthermore, IL-13 induces goblet cell hyperplasia, promotes mucus secretion, and contributes to airway remodeling and fibrosis [4]. Numerous studies have established the critical role of IL-13 in the pathogenesis of various diseases, including asthma, allergic rhinitis, atopic dermatitis, and eosinophilic esophagitis [1-4]. Consequently, targeting IL-13 and its signaling pathways has become a significant therapeutic strategy for these conditions; for example, the monoclonal antibody Dupilumab, which simultaneously blocks IL-4 and IL-13 signaling, has demonstrated substantial efficacy in treating diverse type 2 inflammation-related diseases [5]. Thus, IL-13 represents a promising therapeutic target for allergic and inflammatory disorders.
The IL23A gene encodes the p19 subunit, a component of interleukin-23 (IL-23), which forms a heterodimer with the p40 subunit (encoded by IL12B) to generate the functional IL-23 cytokine. Primarily expressed by activated dendritic cells, macrophages, and monocytes, IL-23 signals through the IL-23 receptor (IL-23R) complex, activating the JAK-STAT pathway to promote Th17 cell differentiation and maintain IL-17 production. This process drives inflammatory responses and mucosal immunity against extracellular pathogens [6-7]. Genetic polymorphisms within IL23A are strongly associated with autoimmune and inflammatory diseases, including psoriasis, Crohn's disease, and inflammatory bowel disease, due to dysregulated Th17 activity and chronic inflammation [6-7]. Monoclonal antibodies targeting IL-23, such as risankizumab and guselkumab, selectively block the p19 subunit, demonstrating therapeutic efficacy in psoriasis and inflammatory bowel diseases by suppressing pathogenic IL-17/Th17 pathways [8]. While IL-23 plays a role in protective immunity, its overactivation contributes to tissue damage in autoimmune settings, highlighting its dual function in immune regulation and disease pathogenesis [6-9].
B6-hIL13/hIL23A mice are humanized models generated by crossing B6-hIL13 mice (Product No.: C001634) with B6-hIL23A mice (Product No.: C001618). These mice are suitable for studying the pathological mechanisms and therapeutic strategies of allergic and inflammatory diseases, immune-related disorders, and cancer, as well as for the screening, development, and preclinical evaluation of IL13/IL23A-targeted drugs.
Interleukin-13, encoded by the IL13 gene, is a key type 2 immune response cytokine, predominantly expressed by activated Th2 helper T cells, type 2 innate lymphoid cells (ILC2s), and mast cells, and central to type 2 immune responses elicited by allergens or other stimuli [1]. The IL-13 protein, a ~13 kDa molecule with a four-helix bundle structure, mediates its biological effects by binding to the cell surface receptor IL-13Rα1 and recruiting the IL-4Rα chain to form a functional receptor complex, thereby activating the downstream JAK/STAT6 signaling pathway [2]. Key functions of IL-13 include promoting B cell maturation and plasma cell differentiation, inducing IgE isotype switching, and suppressing the pro-inflammatory activity of macrophages, leading to reduced production of pro-inflammatory cytokines and chemokines [3]. Furthermore, IL-13 induces goblet cell hyperplasia, promotes mucus secretion, and contributes to airway remodeling and fibrosis [4]. Numerous studies have established the critical role of IL-13 in the pathogenesis of various diseases, including asthma, allergic rhinitis, atopic dermatitis, and eosinophilic esophagitis [1-4]. Consequently, targeting IL-13 and its signaling pathways has become a significant therapeutic strategy for these conditions; for example, the monoclonal antibody Dupilumab, which simultaneously blocks IL-4 and IL-13 signaling, has demonstrated substantial efficacy in treating diverse type 2 inflammation-related diseases [5]. Thus, IL-13 represents a promising therapeutic target for allergic and inflammatory disorders.
The IL23A gene encodes the p19 subunit, a component of interleukin-23 (IL-23), which forms a heterodimer with the p40 subunit (encoded by IL12B) to generate the functional IL-23 cytokine. Primarily expressed by activated dendritic cells, macrophages, and monocytes, IL-23 signals through the IL-23 receptor (IL-23R) complex, activating the JAK-STAT pathway to promote Th17 cell differentiation and maintain IL-17 production. This process drives inflammatory responses and mucosal immunity against extracellular pathogens [6-7]. Genetic polymorphisms within IL23A are strongly associated with autoimmune and inflammatory diseases, including psoriasis, Crohn's disease, and inflammatory bowel disease, due to dysregulated Th17 activity and chronic inflammation [6-7]. Monoclonal antibodies targeting IL-23, such as risankizumab and guselkumab, selectively block the p19 subunit, demonstrating therapeutic efficacy in psoriasis and inflammatory bowel diseases by suppressing pathogenic IL-17/Th17 pathways [8]. While IL-23 plays a role in protective immunity, its overactivation contributes to tissue damage in autoimmune settings, highlighting its dual function in immune regulation and disease pathogenesis [6-9].
B6-hIL13/hIL23A mice are humanized models generated by crossing B6-hIL13 mice (Product No.: C001634) with B6-hIL23A mice (Product No.: C001618). These mice are suitable for studying the pathological mechanisms and therapeutic strategies of allergic and inflammatory diseases, immune-related disorders, and cancer, as well as for the screening, development, and preclinical evaluation of IL13/IL23A-targeted drugs.
B6-huMSLN
Product ID:
C001856
Strain:
C57BL/6NCya
Status:
Description:
The MSLN gene encodes a preproprotein that is proteolytically processed into two distinct proteins: megakaryocyte potentiating factor (MPF) and mesothelin [1]. MPF functions as a cytokine that promotes the formation of megakaryocytes in bone marrow, while mesothelin is a glycosylphosphatidylinositol-anchored cell-surface protein that may play a role in cell adhesion. While mesothelin expression is normally low and restricted to mesothelial cells lining the pleura, peritoneum, and pericardium, it is highly overexpressed in several epithelial cancers, including malignant mesothelioma, ovarian cancer, pancreatic cancer, and certain types of lung cancer [2-3]. This high expression and its function in promoting cell proliferation and metastasis make mesothelin a significant biomarker and a target for cancer therapies [4].
The B6-huMSLN mouse model was generated by replacing sequences from the ATG start codon to the TGA stop codon of the endogenous mouse Msln gene with the sequences from the ATG start codon to the TGA stop codon of the human MSLN gene. This model can be used to study the pathological mechanisms and therapeutic approaches for several cancers, including malignant mesothelioma, ovarian cancer, pancreatic cancer, and certain types of lung cancer, as well as for the development of MSLN-targeted drugs.
The MSLN gene encodes a preproprotein that is proteolytically processed into two distinct proteins: megakaryocyte potentiating factor (MPF) and mesothelin [1]. MPF functions as a cytokine that promotes the formation of megakaryocytes in bone marrow, while mesothelin is a glycosylphosphatidylinositol-anchored cell-surface protein that may play a role in cell adhesion. While mesothelin expression is normally low and restricted to mesothelial cells lining the pleura, peritoneum, and pericardium, it is highly overexpressed in several epithelial cancers, including malignant mesothelioma, ovarian cancer, pancreatic cancer, and certain types of lung cancer [2-3]. This high expression and its function in promoting cell proliferation and metastasis make mesothelin a significant biomarker and a target for cancer therapies [4].
The B6-huMSLN mouse model was generated by replacing sequences from the ATG start codon to the TGA stop codon of the endogenous mouse Msln gene with the sequences from the ATG start codon to the TGA stop codon of the human MSLN gene. This model can be used to study the pathological mechanisms and therapeutic approaches for several cancers, including malignant mesothelioma, ovarian cancer, pancreatic cancer, and certain types of lung cancer, as well as for the development of MSLN-targeted drugs.
B6-huTFRC/htau
Product ID:
C001923
Strain:
C57BL/6Cya
Status:
Description:
The Transferrin receptor (TFRC) gene encodes Transferrin Receptor 1 (TFR1), a protein that is expressed at low levels in most normal cells but shows increased expression in highly proliferative cells, such as basal epidermal cells, intestinal epithelium, and certain activated immune cells. Brain capillary endothelial cells, which constitute the blood-brain barrier (BBB), also express this receptor at high levels [1]. TFR1 plays a critical role in maintaining iron metabolism and homeostasis by facilitating receptor-mediated endocytosis of iron-bound transferrin (Tf) via Tf cycling, thereby promoting iron uptake [2]. Cellular iron deficiency can lead to apoptosis, while cellular transformation requires substantial iron to sustain proliferation, with iron overload contributing to tumor progression. The high expression of TFR1 in many tumors makes it a potential tumor marker, offering a target for therapies to inhibit tumor growth and metastasis [1]. Moreover, TFR1 is implicated in anemia and iron metabolism disorders. Studies have shown that elevated TFR1 expression in cardiomyocytes is associated with exacerbated inflammation in myocarditis patients [3]. As a target for antibody-mediated cancer therapy, TFR1 can be leveraged through two approaches: one involves the use of antibodies conjugated to anti-cancer drugs, which are indirectly internalized via receptor-mediated endocytosis; the other employs antibodies that directly disrupt receptor function or induce Fc effector functions such as antibody-dependent cellular cytotoxicity (ADCC), antibody-dependent cellular phagocytosis (ADCP), or complement-dependent cytotoxicity (CDC). Various clinical drugs targeting TFR1 are currently under development, including antisense oligonucleotides (ASOs), antibody-drug conjugates (ADCs), and antibody-oligonucleotide conjugates, applicable to diseases such as cancer, anemia, and neurodegenerative disorders. Research indicates that enhancing antibody transport across the blood-brain barrier via TFR1, by forming specific bispecific antibodies with anti-β-amyloid antibodies, can improve therapeutic outcomes in Alzheimer's patients [4-5]. As research progresses, TFR1 is expected to become an effective clinical target for multiple diseases and a synergistic target for drug delivery across the blood-brain barrier (BBB).
The tau protein, a microtubule-associated protein encoded by MAPT, is primarily localized to neuronal axons and plays a critical role in microtubule stability and assembly. By binding to microtubules, the tau protein helps to maintain neuronal cell shape. Mutations in MAPT can promote tau aggregation, leading to pathological tau protein accumulation and death of glutamatergic cortical neurons [6]. Additionally, certain MAPT mutations can affect pre-mRNA exon splicing, altering the ratio of 3R to 4R tau protein isoforms and increasing the relative production of 4R-tau protein, which is more prone to fibril formation [7-8].
The B6-huTFRC/htau mouse is a dual-gene humanized model obtained by mating B6-huTFRC mice (catalog number: C001860) with B6-htau mice (catalog number: C001410). This model can be used for research on neurodegenerative diseases and iron metabolism diseases, as well as pre-clinical studies of TFRC/MAPT-targeted therapeutic drugs.
The Transferrin receptor (TFRC) gene encodes Transferrin Receptor 1 (TFR1), a protein that is expressed at low levels in most normal cells but shows increased expression in highly proliferative cells, such as basal epidermal cells, intestinal epithelium, and certain activated immune cells. Brain capillary endothelial cells, which constitute the blood-brain barrier (BBB), also express this receptor at high levels [1]. TFR1 plays a critical role in maintaining iron metabolism and homeostasis by facilitating receptor-mediated endocytosis of iron-bound transferrin (Tf) via Tf cycling, thereby promoting iron uptake [2]. Cellular iron deficiency can lead to apoptosis, while cellular transformation requires substantial iron to sustain proliferation, with iron overload contributing to tumor progression. The high expression of TFR1 in many tumors makes it a potential tumor marker, offering a target for therapies to inhibit tumor growth and metastasis [1]. Moreover, TFR1 is implicated in anemia and iron metabolism disorders. Studies have shown that elevated TFR1 expression in cardiomyocytes is associated with exacerbated inflammation in myocarditis patients [3]. As a target for antibody-mediated cancer therapy, TFR1 can be leveraged through two approaches: one involves the use of antibodies conjugated to anti-cancer drugs, which are indirectly internalized via receptor-mediated endocytosis; the other employs antibodies that directly disrupt receptor function or induce Fc effector functions such as antibody-dependent cellular cytotoxicity (ADCC), antibody-dependent cellular phagocytosis (ADCP), or complement-dependent cytotoxicity (CDC). Various clinical drugs targeting TFR1 are currently under development, including antisense oligonucleotides (ASOs), antibody-drug conjugates (ADCs), and antibody-oligonucleotide conjugates, applicable to diseases such as cancer, anemia, and neurodegenerative disorders. Research indicates that enhancing antibody transport across the blood-brain barrier via TFR1, by forming specific bispecific antibodies with anti-β-amyloid antibodies, can improve therapeutic outcomes in Alzheimer's patients [4-5]. As research progresses, TFR1 is expected to become an effective clinical target for multiple diseases and a synergistic target for drug delivery across the blood-brain barrier (BBB).
The tau protein, a microtubule-associated protein encoded by MAPT, is primarily localized to neuronal axons and plays a critical role in microtubule stability and assembly. By binding to microtubules, the tau protein helps to maintain neuronal cell shape. Mutations in MAPT can promote tau aggregation, leading to pathological tau protein accumulation and death of glutamatergic cortical neurons [6]. Additionally, certain MAPT mutations can affect pre-mRNA exon splicing, altering the ratio of 3R to 4R tau protein isoforms and increasing the relative production of 4R-tau protein, which is more prone to fibril formation [7-8].
The B6-huTFRC/htau mouse is a dual-gene humanized model obtained by mating B6-huTFRC mice (catalog number: C001860) with B6-htau mice (catalog number: C001410). This model can be used for research on neurodegenerative diseases and iron metabolism diseases, as well as pre-clinical studies of TFRC/MAPT-targeted therapeutic drugs.
B6-hPD-1/hPD-L1/hVEGFA
Product ID:
C001838
Strain:
C57BL/6JCya
Status:
Description:
Programmed cell death protein 1 (PDCD1/PD-1) is a member of the B7-CD28 costimulatory receptor family. It is an inhibitory receptor expressed on activated T cells and plays a role in regulating the function of effector T cells, including CD8+ T cells, and promoting the differentiation of CD4+ T cells into regulatory T cells. PD-1 is expressed in a variety of tumors and plays an important role in antitumor immunity. In addition, PD-1 is involved in the defense against autoimmune diseases and has inhibitory effects on antitumor and antimicrobial immunity [1].
Programmed cell death 1 ligand 1 (PD-L1), also known as cluster of differentiation 274 (CD274) or B7 homolog 1 (B7H1), is an immune inhibitory receptor ligand. PD-L1 is a type I transmembrane protein with immunoglobulin V-like (IgV) and C-like (IgC) structural domains and is expressed by hematopoietic and non-hematopoietic cells, including T cells, B cells, and various types of tumor cells [2]. PD-L1 can bind to the PD-1 on the surface of CD8+ T cells, inhibiting the activity of CD8+ T cells. This interaction can prevent the immune system from damaging normal tissues, but it can also be used by tumor cells to escape immune surveillance. Monoclonal antibodies that competitively bind to PD-L1 can relieve the immune function inhibition mediated by the binding of PD-1 and PD-L1. This can reactivate CD8+ T cells, triggering the human body's anti-tumor immune response [3]. Therefore, development of antibody drugs targeting PD-1 and PD-L1 is a hot area in tumor immunotherapy [3-5].
The Vascular Endothelial Growth Factor (VEGF) family is a group of particular endothelial growth factors intimately associated with angiogenesis. These factors promote increased vascular permeability, extracellular matrix degeneration, vascular endothelial cell migration and proliferation, and are capable of stimulating angiogenesis and increasing the permeability of existing vessels. As such, they play a pivotal role in normal vascular development and wound healing. The VEGF family comprises VEGFA, VEGFB, VEGFC, VEGFD, VEGFE, and PLGF [6]. Of these, VEGFA is the most commonly targeted in research related to neovascular ophthalmic diseases due to its crucial role in the proliferation, migration, and formation of endothelial cell microvessels [7]. Overexpression of VEGFA in the eye can result in abnormal vascular growth and leakage, leading to various ophthalmic diseases such as Age-Related Macular Degeneration (AMD), Diabetic Retinopathy (DR), and corneal neovascularization [7-8]. The progression of solid tumors depends on vascularization and angiogenesis within malignant tissues, with VEGFA playing a crucial role among various pro-angiogenic factors. The VEGFA gene is upregulated in many known tumors, correlating with tumor staging and progression. Blocking VEGFA may lead to vascular network regression, thereby inhibiting tumor growth [9]. Thus, VEGFA is an important target for anti-angiogenic cancer therapies.
B6-hPD-1/hPD-L1/hVEGFA mouse is a triple-gene humanized model generated by crossing B6-hPD-1/hPD-L1 mice (Catalog No.: I001202) with B6-hVEGFA mice (Catalog No.: C001555). This model serves as a valuable tool for research on cancer immunotherapy and can also be used for the screening, development, and preclinical evaluation of PD-1/PD-L1/VEGFA-targeted drugs.
Programmed cell death protein 1 (PDCD1/PD-1) is a member of the B7-CD28 costimulatory receptor family. It is an inhibitory receptor expressed on activated T cells and plays a role in regulating the function of effector T cells, including CD8+ T cells, and promoting the differentiation of CD4+ T cells into regulatory T cells. PD-1 is expressed in a variety of tumors and plays an important role in antitumor immunity. In addition, PD-1 is involved in the defense against autoimmune diseases and has inhibitory effects on antitumor and antimicrobial immunity [1].
Programmed cell death 1 ligand 1 (PD-L1), also known as cluster of differentiation 274 (CD274) or B7 homolog 1 (B7H1), is an immune inhibitory receptor ligand. PD-L1 is a type I transmembrane protein with immunoglobulin V-like (IgV) and C-like (IgC) structural domains and is expressed by hematopoietic and non-hematopoietic cells, including T cells, B cells, and various types of tumor cells [2]. PD-L1 can bind to the PD-1 on the surface of CD8+ T cells, inhibiting the activity of CD8+ T cells. This interaction can prevent the immune system from damaging normal tissues, but it can also be used by tumor cells to escape immune surveillance. Monoclonal antibodies that competitively bind to PD-L1 can relieve the immune function inhibition mediated by the binding of PD-1 and PD-L1. This can reactivate CD8+ T cells, triggering the human body's anti-tumor immune response [3]. Therefore, development of antibody drugs targeting PD-1 and PD-L1 is a hot area in tumor immunotherapy [3-5].
The Vascular Endothelial Growth Factor (VEGF) family is a group of particular endothelial growth factors intimately associated with angiogenesis. These factors promote increased vascular permeability, extracellular matrix degeneration, vascular endothelial cell migration and proliferation, and are capable of stimulating angiogenesis and increasing the permeability of existing vessels. As such, they play a pivotal role in normal vascular development and wound healing. The VEGF family comprises VEGFA, VEGFB, VEGFC, VEGFD, VEGFE, and PLGF [6]. Of these, VEGFA is the most commonly targeted in research related to neovascular ophthalmic diseases due to its crucial role in the proliferation, migration, and formation of endothelial cell microvessels [7]. Overexpression of VEGFA in the eye can result in abnormal vascular growth and leakage, leading to various ophthalmic diseases such as Age-Related Macular Degeneration (AMD), Diabetic Retinopathy (DR), and corneal neovascularization [7-8]. The progression of solid tumors depends on vascularization and angiogenesis within malignant tissues, with VEGFA playing a crucial role among various pro-angiogenic factors. The VEGFA gene is upregulated in many known tumors, correlating with tumor staging and progression. Blocking VEGFA may lead to vascular network regression, thereby inhibiting tumor growth [9]. Thus, VEGFA is an important target for anti-angiogenic cancer therapies.
B6-hPD-1/hPD-L1/hVEGFA mouse is a triple-gene humanized model generated by crossing B6-hPD-1/hPD-L1 mice (Catalog No.: I001202) with B6-hVEGFA mice (Catalog No.: C001555). This model serves as a valuable tool for research on cancer immunotherapy and can also be used for the screening, development, and preclinical evaluation of PD-1/PD-L1/VEGFA-targeted drugs.
B6-hOX40L (hTNFSF4)
Product ID:
C001719
Strain:
C57BL/6NCya
Status:
Description:
The TNFSF4 gene (tumor necrosis factor superfamily member 4, also known as OX40L) encodes the OX40 ligand protein, a type II transmembrane protein mainly expressed on antigen-presenting cells (APCs, such as dendritic cells, B cells, and macrophages), as well as endothelial cells and smooth muscle cells [1]. This protein binds to the receptor OX40 (TNFRSF4) on the surface of T cells, providing crucial co-stimulatory signals that enhance T-cell proliferation, survival, and cytokine secretion, thereby playing a central role in adaptive immunity and inflammatory responses [2]. Dysregulated expression of TNFSF4 is associated with various autoimmune diseases, such as systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA), and its gene polymorphisms have been proven to be related to disease susceptibility [3]. Altering the OX40-OX40L interaction can either enhance the immune response to fight cancer or suppress it to treat autoimmune diseases [4]. Blocking the OX40-OX40L binding may alleviate autoimmune diseases by reducing the levels of pro-inflammatory cytokines and enhancing the function of regulatory T cells. Due to its crucial role in immune regulation, OX40L is regarded as an important target for treating autoimmune diseases and cancer immunotherapy, and current drug development focuses on monoclonal antibodies and OX40L inhibitors.
B6-hOX40L (hTNFSF4) mice are a humanized model constructed by using gene editing technology to replace the endogenous extracellular domain of the mouse Tnfsf4 gene with the extracellular domain of the human TNFSF4 gene. This model can be used for research on autoimmune diseases (such as systemic lupus erythematosus and rheumatoid arthritis), cancer immunology, and TNFSF4-targeted drug development.
The TNFSF4 gene (tumor necrosis factor superfamily member 4, also known as OX40L) encodes the OX40 ligand protein, a type II transmembrane protein mainly expressed on antigen-presenting cells (APCs, such as dendritic cells, B cells, and macrophages), as well as endothelial cells and smooth muscle cells [1]. This protein binds to the receptor OX40 (TNFRSF4) on the surface of T cells, providing crucial co-stimulatory signals that enhance T-cell proliferation, survival, and cytokine secretion, thereby playing a central role in adaptive immunity and inflammatory responses [2]. Dysregulated expression of TNFSF4 is associated with various autoimmune diseases, such as systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA), and its gene polymorphisms have been proven to be related to disease susceptibility [3]. Altering the OX40-OX40L interaction can either enhance the immune response to fight cancer or suppress it to treat autoimmune diseases [4]. Blocking the OX40-OX40L binding may alleviate autoimmune diseases by reducing the levels of pro-inflammatory cytokines and enhancing the function of regulatory T cells. Due to its crucial role in immune regulation, OX40L is regarded as an important target for treating autoimmune diseases and cancer immunotherapy, and current drug development focuses on monoclonal antibodies and OX40L inhibitors.
B6-hOX40L (hTNFSF4) mice are a humanized model constructed by using gene editing technology to replace the endogenous extracellular domain of the mouse Tnfsf4 gene with the extracellular domain of the human TNFSF4 gene. This model can be used for research on autoimmune diseases (such as systemic lupus erythematosus and rheumatoid arthritis), cancer immunology, and TNFSF4-targeted drug development.
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