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Alb-Cre+/hMYC-IRES-EGFP+
Product ID:
C001339
Strain:
C57BL/6JCya
Status:
Description:
The MYC oncogene family comprises regulatory genes and proto-oncogenes that encode transcription factors, involved in various cellular processes such as the cell cycle, apoptosis, DNA repair, and metabolism. Members include c-Myc (MYC), l-Myc (MYCL), and n-Myc (MYCN). c-Myc (MYC) is a basic helix-loop-helix leucine zipper (bHLHZip) transcription factor, which forms heterodimers with Max protein to bind DNA and regulate the expression of approximately 15% of genes, thereby participating in key cellular processes such as cell proliferation, apoptosis, DNA repair, and metabolism. In many cancers, c-Myc is overexpressed, leading to uncontrolled cell proliferation and tumor growth, such as in Burkitt's lymphoma where c-Myc gene rearrangement is common. Dysregulation of the MYC oncogene plays a crucial role in tumorigenesis, predominantly through transcriptional dysregulation resulting in overexpression of c-Myc protein.
Alb-Cre+/hMYC-IRES-EGFP+ mice are generated by crossing H11-CAG-LSL-hMYC-IRES-EGFP mice (Catalog Number: C001338), which conditionally express the human c-Myc oncogene, with Alb-Cre mice that express Cre recombinase specifically in hepatocytes under the control of the Alb promoter. The Cre-mediated recombination results in the deletion of the transcriptional stop sequence (Loxp-Stop-Loxp, LSL) in H11-CAG-LSL-hMYC-IRES-EGFP mice, leading to overexpression of the MYC oncogene in the liver and subsequent carcinogenesis. This model, therefore, spontaneously develops liver cancer with an early onset.
The MYC oncogene family comprises regulatory genes and proto-oncogenes that encode transcription factors, involved in various cellular processes such as the cell cycle, apoptosis, DNA repair, and metabolism. Members include c-Myc (MYC), l-Myc (MYCL), and n-Myc (MYCN). c-Myc (MYC) is a basic helix-loop-helix leucine zipper (bHLHZip) transcription factor, which forms heterodimers with Max protein to bind DNA and regulate the expression of approximately 15% of genes, thereby participating in key cellular processes such as cell proliferation, apoptosis, DNA repair, and metabolism. In many cancers, c-Myc is overexpressed, leading to uncontrolled cell proliferation and tumor growth, such as in Burkitt's lymphoma where c-Myc gene rearrangement is common. Dysregulation of the MYC oncogene plays a crucial role in tumorigenesis, predominantly through transcriptional dysregulation resulting in overexpression of c-Myc protein.
Alb-Cre+/hMYC-IRES-EGFP+ mice are generated by crossing H11-CAG-LSL-hMYC-IRES-EGFP mice (Catalog Number: C001338), which conditionally express the human c-Myc oncogene, with Alb-Cre mice that express Cre recombinase specifically in hepatocytes under the control of the Alb promoter. The Cre-mediated recombination results in the deletion of the transcriptional stop sequence (Loxp-Stop-Loxp, LSL) in H11-CAG-LSL-hMYC-IRES-EGFP mice, leading to overexpression of the MYC oncogene in the liver and subsequent carcinogenesis. This model, therefore, spontaneously develops liver cancer with an early onset.
B6-hIL-17A
Product ID:
C001510
Strain:
C57BL/6NCya
Status:
Description:
Interleukin 17A (IL-17A) is a signature cytokine of the T helper 17 (Th17) subset of CD4+ T cells and one of the six members (IL-17A~IL-17F) of the IL-17 family. IL-17A is primarily produced by Th17 cells and can also be produced by other immune cells under certain conditions, including CD8+ T cells, γδT cells, natural killer T (NKT) cells, monocytes, neutrophils, and microglia [1]. IL-17A mediates downstream pathways that induce the production of inflammatory molecules, chemokines, antimicrobial peptides, and remodeling proteins, which have important effects on host defense, cell transport, immune regulation, and tissue repair, especially in inducing innate immune defense. In healthy skin, commensal microorganisms induce the production of IL-17A to provide antifungal protection. When the skin barrier is damaged, IL-17A promotes epithelial cell proliferation and can clear pathogenic factors, promoting tissue repair and wound healing [2]. IL-17A usually protects the body when it is acutely injured, but when a wound requires long-term healing and becomes a chronic injury, the role of IL-17A may transform into wound erosion or excessive proliferation, ultimately leading to loss of function [3].
IL-17A plays a key role in various infectious diseases, inflammations, autoimmune diseases, and cancers. Its high expression level is associated with chronic inflammatory diseases such as rheumatoid arthritis, psoriasis, and multiple sclerosis. Lung injury caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is largely the result of the promotion of inflammatory reactions by cytokines such as IL-17A. Dysregulation of IL-17 signaling promotes pathogenic inflammation. IL-17A has a pathogenic role in mediating the important inflammatory pathway of psoriasis. The IL-23/Th17/IL-17A pathway is a key link in its pathogenesis, and inhibiting the expression of IL-17A can effectively alleviate psoriasis [4]. IL-17A is also associated with the course of ankylosing spondylitis (AS), and IL-17A inhibitors can effectively treat AS [5]. In addition, studies have shown that IL-17A is involved in the pathogenesis of neurodegenerative diseases in the central nervous system, and its expression level is related to the severity and progression of the disease [3].
B6-hIL-17A mice are humanized mouse models that express human IL-17A protein. They were constructed by using gene editing technology to replace the sequence encoding the endogenous extracellular domain of the mouse Il17a gene with the corresponding sequence from the human IL17A gene while retaining the mouse signal peptide. This strain can be used for mechanism research and preclinical evaluation of therapeutic drugs for various chronic inflammatory diseases such as rheumatoid arthritis, psoriasis, and multiple sclerosis. The homozygotes are viable and fertile.
Interleukin 17A (IL-17A) is a signature cytokine of the T helper 17 (Th17) subset of CD4+ T cells and one of the six members (IL-17A~IL-17F) of the IL-17 family. IL-17A is primarily produced by Th17 cells and can also be produced by other immune cells under certain conditions, including CD8+ T cells, γδT cells, natural killer T (NKT) cells, monocytes, neutrophils, and microglia [1]. IL-17A mediates downstream pathways that induce the production of inflammatory molecules, chemokines, antimicrobial peptides, and remodeling proteins, which have important effects on host defense, cell transport, immune regulation, and tissue repair, especially in inducing innate immune defense. In healthy skin, commensal microorganisms induce the production of IL-17A to provide antifungal protection. When the skin barrier is damaged, IL-17A promotes epithelial cell proliferation and can clear pathogenic factors, promoting tissue repair and wound healing [2]. IL-17A usually protects the body when it is acutely injured, but when a wound requires long-term healing and becomes a chronic injury, the role of IL-17A may transform into wound erosion or excessive proliferation, ultimately leading to loss of function [3].
IL-17A plays a key role in various infectious diseases, inflammations, autoimmune diseases, and cancers. Its high expression level is associated with chronic inflammatory diseases such as rheumatoid arthritis, psoriasis, and multiple sclerosis. Lung injury caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is largely the result of the promotion of inflammatory reactions by cytokines such as IL-17A. Dysregulation of IL-17 signaling promotes pathogenic inflammation. IL-17A has a pathogenic role in mediating the important inflammatory pathway of psoriasis. The IL-23/Th17/IL-17A pathway is a key link in its pathogenesis, and inhibiting the expression of IL-17A can effectively alleviate psoriasis [4]. IL-17A is also associated with the course of ankylosing spondylitis (AS), and IL-17A inhibitors can effectively treat AS [5]. In addition, studies have shown that IL-17A is involved in the pathogenesis of neurodegenerative diseases in the central nervous system, and its expression level is related to the severity and progression of the disease [3].
B6-hIL-17A mice are humanized mouse models that express human IL-17A protein. They were constructed by using gene editing technology to replace the sequence encoding the endogenous extracellular domain of the mouse Il17a gene with the corresponding sequence from the human IL17A gene while retaining the mouse signal peptide. This strain can be used for mechanism research and preclinical evaluation of therapeutic drugs for various chronic inflammatory diseases such as rheumatoid arthritis, psoriasis, and multiple sclerosis. The homozygotes are viable and fertile.
B6-hLPA (CKI) /Alb-cre
Product ID:
C001522
Strain:
C57BL/6NCya
Status:
Description:
Lipoprotein A (LPA) is a type of particle similar to low-density lipoprotein (LDL) that is considered one of the risk factors for cardiovascular disease (CVD), such as atherosclerosis, coronary heart disease, stroke, etc [1]. LP(a) is similar in size and lipid content to LDL (low-density lipoprotein) and also contains the lipoprotein ApoB-100. However, unlike LDL, LP(a) additionally contains a variable-length lipoprotein called Apo(a), which covalently binds to ApoB-100 through a single disulfide bond. LP(a) plays an important role in systemic lipid transport, guiding inflammatory cells into blood vessel walls and leading to smooth muscle cell proliferation. Furthermore, it is involved in wound healing and tissue repair, interacting with the components of blood vessel walls and the extracellular matrix [2]. However, LP(a) can also cause arterial narrowing by adhering to the arterial wall, accelerating the formation of blood clots, and thereby triggering a series of pathological changes related to coronary heart disease, cardiovascular disease, atherosclerosis, thrombus formation, and stroke [3].
The plasma concentration of LP(a) is closely related to genetic factors and is primarily regulated by the LPA gene. Therefore, the LPA gene is an important potential target for cardiovascular disease treatment. The LPA gene encodes a serine protease that inhibits the activity of tissue-type plasminogen activator I. Fragments of this protein, generated through protein hydrolysis, can adhere to atherosclerotic lesions in arteries, promoting blood clot formation. The LPA gene is expressed in both humans and non-human primates but is not expressed in mice. Constructing mouse models expressing the human LPA gene is of significant importance for developing lipid-lowering drugs, which can drive the development of novel therapies for cardiovascular diseases. Currently, various novel therapies targeting the transcription rate of the LPA gene are under development, including small interfering RNA (siRNA) and antisense oligonucleotides (ASO) [4].
This strain was generated by mating B6-hLPA(CKI) mice (catalog number: C001521) with Alb-Cre mice (liver-specific Cre-expressing mice), resulting in a mouse model with liver-specific overexpression of the human LPA gene. B6-hLPA(CKI)/Alb-cre mice can be used to study the relationship between the LPA gene and hyperlipidemia and related cardiovascular diseases.
Lipoprotein A (LPA) is a type of particle similar to low-density lipoprotein (LDL) that is considered one of the risk factors for cardiovascular disease (CVD), such as atherosclerosis, coronary heart disease, stroke, etc [1]. LP(a) is similar in size and lipid content to LDL (low-density lipoprotein) and also contains the lipoprotein ApoB-100. However, unlike LDL, LP(a) additionally contains a variable-length lipoprotein called Apo(a), which covalently binds to ApoB-100 through a single disulfide bond. LP(a) plays an important role in systemic lipid transport, guiding inflammatory cells into blood vessel walls and leading to smooth muscle cell proliferation. Furthermore, it is involved in wound healing and tissue repair, interacting with the components of blood vessel walls and the extracellular matrix [2]. However, LP(a) can also cause arterial narrowing by adhering to the arterial wall, accelerating the formation of blood clots, and thereby triggering a series of pathological changes related to coronary heart disease, cardiovascular disease, atherosclerosis, thrombus formation, and stroke [3].
The plasma concentration of LP(a) is closely related to genetic factors and is primarily regulated by the LPA gene. Therefore, the LPA gene is an important potential target for cardiovascular disease treatment. The LPA gene encodes a serine protease that inhibits the activity of tissue-type plasminogen activator I. Fragments of this protein, generated through protein hydrolysis, can adhere to atherosclerotic lesions in arteries, promoting blood clot formation. The LPA gene is expressed in both humans and non-human primates but is not expressed in mice. Constructing mouse models expressing the human LPA gene is of significant importance for developing lipid-lowering drugs, which can drive the development of novel therapies for cardiovascular diseases. Currently, various novel therapies targeting the transcription rate of the LPA gene are under development, including small interfering RNA (siRNA) and antisense oligonucleotides (ASO) [4].
This strain was generated by mating B6-hLPA(CKI) mice (catalog number: C001521) with Alb-Cre mice (liver-specific Cre-expressing mice), resulting in a mouse model with liver-specific overexpression of the human LPA gene. B6-hLPA(CKI)/Alb-cre mice can be used to study the relationship between the LPA gene and hyperlipidemia and related cardiovascular diseases.
B6-hLPA (CKI)
Product ID:
C001521
Strain:
C57BL/6NCya
Status:
Description:
Lipoprotein A (LPA) is a type of particle similar to low-density lipoprotein (LDL) that is considered one of the risk factors for cardiovascular disease (CVD) such as atherosclerosis, coronary heart disease, stroke, etc [1]. LP(a) is similar in size and lipid content to LDL (low-density lipoprotein) and contains the lipoprotein ApoB-100. However, unlike LDL, LP(a) contains a variable-length lipoprotein called Apo(a), which covalently binds to ApoB-100 through a single disulfide bond. LP(a) plays an important role in systemic lipid transport, guiding inflammatory cells into blood vessel walls and leading to smooth muscle cell proliferation. Furthermore, it is involved in wound healing and tissue repair, interacting with the components of blood vessel walls and the extracellular matrix [2]. However, LP(a) can also cause arterial narrowing by adhering to the arterial wall, accelerating the formation of blood clots, and thereby triggering a series of pathological changes related to coronary heart disease, cardiovascular disease, atherosclerosis, thrombus formation, and stroke [3].
The plasma concentration of LP(a) is closely related to genetic factors and is primarily regulated by the LPA gene. Therefore, the LPA gene is an important potential target for cardiovascular disease treatment. The LPA gene encodes a serine protease that inhibits the activity of tissue-type plasminogen activator I. Fragments of this protein, generated through protein hydrolysis, can adhere to atherosclerotic lesions in arteries, promoting blood clot formation. The LPA gene is expressed in both humans and non-human primates but is not expressed in mice. Constructing mouse models expressing the human LPA gene is of significant importance for developing lipid-lowering drugs, which can drive the development of novel therapies for cardiovascular diseases. Currently, various novel therapies targeting the transcription rate of the LPA gene are under development, including small interfering RNA (siRNA) and antisense oligonucleotides (ASO) [4].
This strain was a conditional mouse model expressing the human LPA gene, where the ‘loxP-Stop-loxP-hLPA’ sequence was inserted into the intron 1 of the ROSA26 safe harbor locus. When this model is bred with tool mice expressing Cre recombinase, sequence recombination occurs in the Cre-positive cells and tissues of the offspring mice. After the Cre-recombinase-mediated deletion of the stop element (LSL), specific expression of the human LPA gene can be achieved. The B6-hLPA(CKI) mice can be used for research related to atherosclerosis, and thrombotic cardiovascular diseases, as well as the development, screening, and preclinical evaluation of human LPA gene-targeted drugs.
Lipoprotein A (LPA) is a type of particle similar to low-density lipoprotein (LDL) that is considered one of the risk factors for cardiovascular disease (CVD) such as atherosclerosis, coronary heart disease, stroke, etc [1]. LP(a) is similar in size and lipid content to LDL (low-density lipoprotein) and contains the lipoprotein ApoB-100. However, unlike LDL, LP(a) contains a variable-length lipoprotein called Apo(a), which covalently binds to ApoB-100 through a single disulfide bond. LP(a) plays an important role in systemic lipid transport, guiding inflammatory cells into blood vessel walls and leading to smooth muscle cell proliferation. Furthermore, it is involved in wound healing and tissue repair, interacting with the components of blood vessel walls and the extracellular matrix [2]. However, LP(a) can also cause arterial narrowing by adhering to the arterial wall, accelerating the formation of blood clots, and thereby triggering a series of pathological changes related to coronary heart disease, cardiovascular disease, atherosclerosis, thrombus formation, and stroke [3].
The plasma concentration of LP(a) is closely related to genetic factors and is primarily regulated by the LPA gene. Therefore, the LPA gene is an important potential target for cardiovascular disease treatment. The LPA gene encodes a serine protease that inhibits the activity of tissue-type plasminogen activator I. Fragments of this protein, generated through protein hydrolysis, can adhere to atherosclerotic lesions in arteries, promoting blood clot formation. The LPA gene is expressed in both humans and non-human primates but is not expressed in mice. Constructing mouse models expressing the human LPA gene is of significant importance for developing lipid-lowering drugs, which can drive the development of novel therapies for cardiovascular diseases. Currently, various novel therapies targeting the transcription rate of the LPA gene are under development, including small interfering RNA (siRNA) and antisense oligonucleotides (ASO) [4].
This strain was a conditional mouse model expressing the human LPA gene, where the ‘loxP-Stop-loxP-hLPA’ sequence was inserted into the intron 1 of the ROSA26 safe harbor locus. When this model is bred with tool mice expressing Cre recombinase, sequence recombination occurs in the Cre-positive cells and tissues of the offspring mice. After the Cre-recombinase-mediated deletion of the stop element (LSL), specific expression of the human LPA gene can be achieved. The B6-hLPA(CKI) mice can be used for research related to atherosclerosis, and thrombotic cardiovascular diseases, as well as the development, screening, and preclinical evaluation of human LPA gene-targeted drugs.
B6-hTREM1
Product ID:
C001790
Strain:
C57BL/6NCya
Status:
Description:
The Triggering Receptor Expressed on Myeloid Cells 1 (TREM1) gene encodes a transmembrane protein, also known as CD354, primarily expressed on myeloid cells such as neutrophils, monocytes, and macrophages, with expression also observed in dendritic cells, microglia, osteoclasts, platelets, and even some epithelial and endothelial cells [1]. Upon activation, the TREM1 protein amplifies inflammatory responses, often synergizing with Toll-like receptor (TLR) and NOD-like receptor (NLR) signaling pathways. This leads to the robust production and release of pro-inflammatory cytokines and chemokines, enhanced degranulation, phagocytosis, and respiratory burst in neutrophils and macrophages, and even promotes dendritic cell maturation [2]. A soluble form of TREM1 (sTREM1) also exists, which can act as a decoy receptor to modulate inflammation and serves as a biomarker for various inflammatory conditions [3]. Dysregulated TREM1 activity is implicated in a wide range of diseases, including infectious diseases like sepsis and pneumonia, chronic inflammatory conditions such as inflammatory bowel disease, atherosclerosis, rheumatoid arthritis, and various cancers (e.g., glioma, hepatocellular carcinoma, lung adenocarcinoma, breast, colon, and pancreatic cancers), as well as neurodegenerative disorders like Parkinson's and Alzheimer's disease, and kidney-related diseases [2-5].
The B6-hTREM1 mouse is a humanized model, constructed by replacing the mouse Trem1 signal peptide (aa. 1-20) and endogenous extracellular domain (aa. 21-202) with the human TREM1 signal peptide (aa. 1-20) and extracellular domain (aa. 21-205), while preserving the murine aa. 203-230. B6-hTREM1 mice can be used for research into the pathogenesis of various inflammatory diseases, cancers, neurodegenerative diseases, and kidney-related diseases, as well as for the screening, development, and safety evaluation of TREM1-targeted drugs.
The Triggering Receptor Expressed on Myeloid Cells 1 (TREM1) gene encodes a transmembrane protein, also known as CD354, primarily expressed on myeloid cells such as neutrophils, monocytes, and macrophages, with expression also observed in dendritic cells, microglia, osteoclasts, platelets, and even some epithelial and endothelial cells [1]. Upon activation, the TREM1 protein amplifies inflammatory responses, often synergizing with Toll-like receptor (TLR) and NOD-like receptor (NLR) signaling pathways. This leads to the robust production and release of pro-inflammatory cytokines and chemokines, enhanced degranulation, phagocytosis, and respiratory burst in neutrophils and macrophages, and even promotes dendritic cell maturation [2]. A soluble form of TREM1 (sTREM1) also exists, which can act as a decoy receptor to modulate inflammation and serves as a biomarker for various inflammatory conditions [3]. Dysregulated TREM1 activity is implicated in a wide range of diseases, including infectious diseases like sepsis and pneumonia, chronic inflammatory conditions such as inflammatory bowel disease, atherosclerosis, rheumatoid arthritis, and various cancers (e.g., glioma, hepatocellular carcinoma, lung adenocarcinoma, breast, colon, and pancreatic cancers), as well as neurodegenerative disorders like Parkinson's and Alzheimer's disease, and kidney-related diseases [2-5].
The B6-hTREM1 mouse is a humanized model, constructed by replacing the mouse Trem1 signal peptide (aa. 1-20) and endogenous extracellular domain (aa. 21-202) with the human TREM1 signal peptide (aa. 1-20) and extracellular domain (aa. 21-205), while preserving the murine aa. 203-230. B6-hTREM1 mice can be used for research into the pathogenesis of various inflammatory diseases, cancers, neurodegenerative diseases, and kidney-related diseases, as well as for the screening, development, and safety evaluation of TREM1-targeted drugs.
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-hIL2RA
Product ID:
C001713
Strain:
C57BL/6NCya
Status:
Description:
The interleukin-2 receptor alpha subunit, encoded by the IL2RA gene and also known as CD25, is a critical determinant of IL-2 signaling, a pathway fundamental to T cell biology. While CD25 alone exhibits low affinity for IL-2, its assembly with the IL-2 receptor beta and gamma chains forms the high-affinity receptor complex essential for robust cellular responses to this pleiotropic cytokine [1]. Expressed prominently on activated T lymphocytes, including effector and regulatory T cells, CD25 is pivotal for diverse processes such as T cell proliferation, differentiation, and the maintenance of immune tolerance, largely mediated through its indispensable role in regulatory T cell development and function [2]. Consequently, perturbations in IL2RA expression or genetic variants within the locus are strongly associated with susceptibility to a range of severe autoimmune disorders, including multiple sclerosis, type 1 diabetes, and rheumatoid arthritis, highlighting its central involvement in immune homeostasis breakdown [3]. Furthermore, aberrant CD25 expression has been observed in certain malignancies, suggesting roles beyond adaptive immunity [4]. The demonstrable impact of IL2RA on immune regulation and disease pathogenesis underscores its significance as a key molecule in immunology and a compelling target for therapeutic intervention.
The B6-hIL2RA mouse is a humanized model constructed by replacing the sequence of the mouse Il2ra endogenous extracellular domain in situ with the corresponding extracellular domain from the human IL2RA. The murine signal peptide and transmembrane-cytoplasmic region were preserved. The B6-hIL2RA mice can be used for the study of the pathogenesis of autoimmune diseases such as multiple sclerosis, type 1 diabetes, and rheumatoid arthritis, and certain malignancies, as well as for IL2RA-targeted drug development.
The interleukin-2 receptor alpha subunit, encoded by the IL2RA gene and also known as CD25, is a critical determinant of IL-2 signaling, a pathway fundamental to T cell biology. While CD25 alone exhibits low affinity for IL-2, its assembly with the IL-2 receptor beta and gamma chains forms the high-affinity receptor complex essential for robust cellular responses to this pleiotropic cytokine [1]. Expressed prominently on activated T lymphocytes, including effector and regulatory T cells, CD25 is pivotal for diverse processes such as T cell proliferation, differentiation, and the maintenance of immune tolerance, largely mediated through its indispensable role in regulatory T cell development and function [2]. Consequently, perturbations in IL2RA expression or genetic variants within the locus are strongly associated with susceptibility to a range of severe autoimmune disorders, including multiple sclerosis, type 1 diabetes, and rheumatoid arthritis, highlighting its central involvement in immune homeostasis breakdown [3]. Furthermore, aberrant CD25 expression has been observed in certain malignancies, suggesting roles beyond adaptive immunity [4]. The demonstrable impact of IL2RA on immune regulation and disease pathogenesis underscores its significance as a key molecule in immunology and a compelling target for therapeutic intervention.
The B6-hIL2RA mouse is a humanized model constructed by replacing the sequence of the mouse Il2ra endogenous extracellular domain in situ with the corresponding extracellular domain from the human IL2RA. The murine signal peptide and transmembrane-cytoplasmic region were preserved. The B6-hIL2RA mice can be used for the study of the pathogenesis of autoimmune diseases such as multiple sclerosis, type 1 diabetes, and rheumatoid arthritis, and certain malignancies, as well as for IL2RA-targeted drug development.
B6-hTTR
Product ID:
C001512
Strain:
C57BL/6NCya
Status:
Description:
Transthyretin amyloidosis (ATTR) is a protein disorder caused by the abnormal accumulation of misfolded transthyretin (TTR) protein in organs and tissues throughout the body, primarily affecting the peripheral nervous system and heart [1]. ATTR can be divided into hereditary ATTR and wild-type ATTR, with hereditary ATTR being caused by genetic mutations in the TTR gene.
The TTR gene encodes transthyretin (TTR), also known as prealbumin, which is mainly synthesized in the liver and to a lesser extent in the brain’s choroid plexus or ocular photoreceptor tissue (such as the retina). TTR is a transport protein that exists as a homotetramer in peripheral blood under normal physiological conditions and participates in the transport of thyroxine and retinol-binding protein. Mutations in the TTR gene can lead to hereditary familial amyloidosis, such as Transthyretin Cardiac Amyloidosis Myocardiopathy (ATTR-CM) and Transthyretin Amyloid Polyneuropathy (ATTR-PN). The pathogenic mechanism is that structurally unstable TTR protein tetramers develop into pathological aggregates in tissues such as the peripheral nervous system, heart, eyes, kidneys, and meninges, forming insoluble amyloid deposits, eventually leading to ATTR.
The treatments for ATTR-CM and ATTR-PN mainly involve inhibiting the production of mutant TTR mRNA or stabilizing the structure of TTR protein tetramers. At present, various drug pipelines have emerged in the field of gene therapy targeting the TTR gene, including ASO, siRNA, and CRISPR-based gene therapies. Among them, Inotersen Sodium, developed by Ionis, the leading oligonucleic acid drug (ASO) therapy company, is the first approved ASO drug for this disease. It targets the conserved sequence of the 3’ untranslated region (UTR) of TTR mRNA to induce mRNA degradation and reduce TTR synthesis in liver cells [2]. Since most ASO, siRNA, and CRISPR-based therapies target human TTR genes, considering the differences between animals and humans at the genetic level, humanizing mouse genes will help advance gene therapy drug pipelines into clinical stages. This strain is a mouse Ttr gene humanized model and can be used for research on transthyretin amyloidosis. The homozygous B6-hTTR mice are viable and fertile [3-6]. Additionally, based on the independently developed 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 experimental needs in pharmacology.
Transthyretin amyloidosis (ATTR) is a protein disorder caused by the abnormal accumulation of misfolded transthyretin (TTR) protein in organs and tissues throughout the body, primarily affecting the peripheral nervous system and heart [1]. ATTR can be divided into hereditary ATTR and wild-type ATTR, with hereditary ATTR being caused by genetic mutations in the TTR gene.
The TTR gene encodes transthyretin (TTR), also known as prealbumin, which is mainly synthesized in the liver and to a lesser extent in the brain’s choroid plexus or ocular photoreceptor tissue (such as the retina). TTR is a transport protein that exists as a homotetramer in peripheral blood under normal physiological conditions and participates in the transport of thyroxine and retinol-binding protein. Mutations in the TTR gene can lead to hereditary familial amyloidosis, such as Transthyretin Cardiac Amyloidosis Myocardiopathy (ATTR-CM) and Transthyretin Amyloid Polyneuropathy (ATTR-PN). The pathogenic mechanism is that structurally unstable TTR protein tetramers develop into pathological aggregates in tissues such as the peripheral nervous system, heart, eyes, kidneys, and meninges, forming insoluble amyloid deposits, eventually leading to ATTR.
The treatments for ATTR-CM and ATTR-PN mainly involve inhibiting the production of mutant TTR mRNA or stabilizing the structure of TTR protein tetramers. At present, various drug pipelines have emerged in the field of gene therapy targeting the TTR gene, including ASO, siRNA, and CRISPR-based gene therapies. Among them, Inotersen Sodium, developed by Ionis, the leading oligonucleic acid drug (ASO) therapy company, is the first approved ASO drug for this disease. It targets the conserved sequence of the 3’ untranslated region (UTR) of TTR mRNA to induce mRNA degradation and reduce TTR synthesis in liver cells [2]. Since most ASO, siRNA, and CRISPR-based therapies target human TTR genes, considering the differences between animals and humans at the genetic level, humanizing mouse genes will help advance gene therapy drug pipelines into clinical stages. This strain is a mouse Ttr gene humanized model and can be used for research on transthyretin amyloidosis. The homozygous B6-hTTR mice are viable and fertile [3-6]. Additionally, based on the independently developed 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 experimental needs in pharmacology.
B6-hINHBE/ob
Product ID:
C001600
Strain:
C57BL/6NCya;C57BL/6JCya
Status:
Description:
Inhibin βE subunit (INHBE) is a member of the transforming growth factor-β (TGF-β) superfamily, highly specifically expressed in liver cells. The precursor protein of INHBE generates the inhibin β subunit after proteolytic processing. This protein is associated with various cellular processes, including cell proliferation, apoptosis, immune response, and hormone secretion. During the development of obesity and diabetes, the expression of INHBE protein inhibits the proliferation and growth of relevant cells in the pancreas and liver. Research has found a positive correlation between INHBE expression in the liver and insulin resistance and body mass index (BMI), suggesting that INHBE may be a liver factor in altering systemic metabolic status under conditions of obesity-related insulin resistance [1]. The studies conducted by Alnylam Pharmaceuticals and the Regeneron Genetics Center (RGC), respectively, revealed the close relationship between INHBE and fat regulation. The research demonstrated that rare loss-of-function variants in INHBE may protect the liver from the impact of inflammation, abnormal blood lipids, and type 2 diabetes by promoting healthy fat storage. Patients carrying such mutations exhibit more normal fat distribution, significantly reduced abdominal fat, improved metabolic conditions, and a decreased risk of cardiovascular diseases and type 2 diabetes [2-4]. These findings suggest that INHBE is a liver-specific negative regulator of fat storage. Inhibiting the expression of INHBE genes and proteins may be a potential strategy for treating metabolic disorders related to improper fat distribution and storage. Consequently, several small nucleic acid pharmaceutical companies, including Alnylam Pharmaceuticals, Arrowhead Pharmaceuticals, and Wave Life Sciences, are currently developing RNA interference (RNAi) drugs targeting INHBE to treat obesity [5-7].
The leptin (LEP) gene, also known as the OB gene, encodes the leptin protein, which is secreted into the circulation by white adipocytes and plays a major role in regulating energy homeostasis. Circulating leptin binds to leptin receptors (LEPR) in the brain, activating downstream signaling pathways that inhibit feeding and promote energy expenditure. Leptin also has multiple endocrine functions and is involved in physiopathological processes such as immune and inflammatory responses, hematopoiesis, angiogenesis, reproduction, bone formation, and wound healing [8]. Mutations in the LEP gene and its regulatory regions lead to severe obesity and morbid obesity with hypogonadism in humans and are also associated with the development of type II diabetes [9].
The B6-hINHBE/ob mouse model, generated by mating B6-hINHBE mice (Catalog Number: C001533) with Lep KO (ob/ob) mice (Catalog Number: C001368), is a metabolic disease model. It can be used for research on obesity, type II diabetes, and metabolic diseases related to improper fat distribution and storage, and for the development of human INHBE-targeted therapies.
Inhibin βE subunit (INHBE) is a member of the transforming growth factor-β (TGF-β) superfamily, highly specifically expressed in liver cells. The precursor protein of INHBE generates the inhibin β subunit after proteolytic processing. This protein is associated with various cellular processes, including cell proliferation, apoptosis, immune response, and hormone secretion. During the development of obesity and diabetes, the expression of INHBE protein inhibits the proliferation and growth of relevant cells in the pancreas and liver. Research has found a positive correlation between INHBE expression in the liver and insulin resistance and body mass index (BMI), suggesting that INHBE may be a liver factor in altering systemic metabolic status under conditions of obesity-related insulin resistance [1]. The studies conducted by Alnylam Pharmaceuticals and the Regeneron Genetics Center (RGC), respectively, revealed the close relationship between INHBE and fat regulation. The research demonstrated that rare loss-of-function variants in INHBE may protect the liver from the impact of inflammation, abnormal blood lipids, and type 2 diabetes by promoting healthy fat storage. Patients carrying such mutations exhibit more normal fat distribution, significantly reduced abdominal fat, improved metabolic conditions, and a decreased risk of cardiovascular diseases and type 2 diabetes [2-4]. These findings suggest that INHBE is a liver-specific negative regulator of fat storage. Inhibiting the expression of INHBE genes and proteins may be a potential strategy for treating metabolic disorders related to improper fat distribution and storage. Consequently, several small nucleic acid pharmaceutical companies, including Alnylam Pharmaceuticals, Arrowhead Pharmaceuticals, and Wave Life Sciences, are currently developing RNA interference (RNAi) drugs targeting INHBE to treat obesity [5-7].
The leptin (LEP) gene, also known as the OB gene, encodes the leptin protein, which is secreted into the circulation by white adipocytes and plays a major role in regulating energy homeostasis. Circulating leptin binds to leptin receptors (LEPR) in the brain, activating downstream signaling pathways that inhibit feeding and promote energy expenditure. Leptin also has multiple endocrine functions and is involved in physiopathological processes such as immune and inflammatory responses, hematopoiesis, angiogenesis, reproduction, bone formation, and wound healing [8]. Mutations in the LEP gene and its regulatory regions lead to severe obesity and morbid obesity with hypogonadism in humans and are also associated with the development of type II diabetes [9].
The B6-hINHBE/ob mouse model, generated by mating B6-hINHBE mice (Catalog Number: C001533) with Lep KO (ob/ob) mice (Catalog Number: C001368), is a metabolic disease model. It can be used for research on obesity, type II diabetes, and metabolic diseases related to improper fat distribution and storage, and for the development of human INHBE-targeted therapies.
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.
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