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Alb-cre+/MYC+
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+/MYC+ 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+/MYC+ 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-hMASP2
Product ID:
C001592
Strain:
C57BL/6NCya
Status:
Description:
The MASP2 gene encodes MASP-2, a serum serine protease that serves as a key mediator in complement system activation. MASP-2 initiates the lectin pathway by forming complexes with pattern recognition molecules such as mannose-binding lectin (MBL) and ficolins. Upon pathogen recognition by MBL, MASP-2 is activated and subsequently cleaves complement components C4 and C2, leading to the generation of C3 convertase and triggering downstream complement activation. Beyond its role in the complement cascade, MASP-2 also contributes to the coagulation pathway by cleaving prothrombin to generate thrombin, thereby linking innate immunity and hemostasis [1]. Emerging evidence highlights the clinical significance of MASP2 gene polymorphisms, which are associated with altered susceptibility to infectious diseases and immune-related disorders. Reduced plasma levels of MASP-2 have been linked to increased vulnerability to HIV infection, while elevated MASP-2 activity may exacerbate inflammatory responses [2]. Given its pivotal role in immune regulation, MASP-2 has emerged as a promising therapeutic target. Inhibition of MASP-2 is currently under investigation as a potential strategy for treating a range of conditions, including IgA nephropathy (IgAN) [3], atypical hemolytic uremic syndrome (aHUS), and transplant-associated thrombotic microangiopathy (TA-TMA) [4].
The B6-hMASP2 mouse model, generated through precise gene editing technology, features the in situ replacement of part of the endogenous mouse Masp2 gene with the coding sequence (CDS) of human MASP2. Homozygous B6-hMASP2 mice are viable and fertile, providing a robust platform for studying the pathophysiology of autoimmune and infectious diseases. This model also serves as a valuable tool for the development and preclinical evaluation of MASP-2-targeted therapeutics, offering insights into both mechanistic and translational aspects of complement-mediated diseases.
The MASP2 gene encodes MASP-2, a serum serine protease that serves as a key mediator in complement system activation. MASP-2 initiates the lectin pathway by forming complexes with pattern recognition molecules such as mannose-binding lectin (MBL) and ficolins. Upon pathogen recognition by MBL, MASP-2 is activated and subsequently cleaves complement components C4 and C2, leading to the generation of C3 convertase and triggering downstream complement activation. Beyond its role in the complement cascade, MASP-2 also contributes to the coagulation pathway by cleaving prothrombin to generate thrombin, thereby linking innate immunity and hemostasis [1]. Emerging evidence highlights the clinical significance of MASP2 gene polymorphisms, which are associated with altered susceptibility to infectious diseases and immune-related disorders. Reduced plasma levels of MASP-2 have been linked to increased vulnerability to HIV infection, while elevated MASP-2 activity may exacerbate inflammatory responses [2]. Given its pivotal role in immune regulation, MASP-2 has emerged as a promising therapeutic target. Inhibition of MASP-2 is currently under investigation as a potential strategy for treating a range of conditions, including IgA nephropathy (IgAN) [3], atypical hemolytic uremic syndrome (aHUS), and transplant-associated thrombotic microangiopathy (TA-TMA) [4].
The B6-hMASP2 mouse model, generated through precise gene editing technology, features the in situ replacement of part of the endogenous mouse Masp2 gene with the coding sequence (CDS) of human MASP2. Homozygous B6-hMASP2 mice are viable and fertile, providing a robust platform for studying the pathophysiology of autoimmune and infectious diseases. This model also serves as a valuable tool for the development and preclinical evaluation of MASP-2-targeted therapeutics, offering insights into both mechanistic and translational aspects of complement-mediated diseases.
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-hBAFFR (hTNFRSF13C)
Product ID:
C001711
Strain:
C57BL/6NCya
Status:
Description:
The gene TNFRSF13C encodes the B cell-activating factor receptor (BAFF-R), also known as BLyS receptor 3 (BR3) or CD268. As a member of the tumor necrosis factor receptor superfamily (TNFRSF), BAFF-R functions as a crucial type III transmembrane signaling protein on lymphocytes. Its expression is predominantly observed on the surface of B cells throughout various stages of their development, from transitional to mature naive and memory populations, underscoring its vital role in peripheral B cell homeostasis [1]. BAFF-R serves as the primary receptor for the cytokine BAFF (TNFSF13B), and their interaction delivers essential survival and maturation signals to B cells, mediated through downstream pathways including the activation of NF-κB and PI3K. Genetic alterations in TNFRSF13C, including point mutations and deletions, or dysregulation of the BAFF-BAFF-R axis, are increasingly recognized for their contribution to immune pathology [2]. Such aberrations are associated with primary immunodeficiencies like common variable immunodeficiency (CVID), characterized by profound defects in antibody production and recurrent infections, as well as a range of autoimmune diseases such as systemic lupus erythematosus (SLE) and Sjögren's syndrome, and certain B cell malignancies [2-3]. The critical, non-redundant function of BAFF-R in B cell biology highlights its significance as a key node in adaptive immunity and positions the BAFF-BAFF-R pathway as a compelling target for therapeutic intervention in a spectrum of immune-mediated disorders.
The B6-hBAFFR (hTNFRSF13C) mouse is a humanized model constructed by replacing the sequence of the mouse Tnfrsf13c endogenous extracellular domain in situ with the corresponding extracellular domain from the human TNFRSF13C. The B6-hBAFFR (hTNFRSF13C) mice can be used for the study of the pathogenesis of immune-mediated disorders such as common variable immunodeficiency (CVID), systemic lupus erythematosus (SLE), and Sjögren's syndrome, and certain B cell malignancies, as well as for TNFRSF13C-targeted drug development.
The gene TNFRSF13C encodes the B cell-activating factor receptor (BAFF-R), also known as BLyS receptor 3 (BR3) or CD268. As a member of the tumor necrosis factor receptor superfamily (TNFRSF), BAFF-R functions as a crucial type III transmembrane signaling protein on lymphocytes. Its expression is predominantly observed on the surface of B cells throughout various stages of their development, from transitional to mature naive and memory populations, underscoring its vital role in peripheral B cell homeostasis [1]. BAFF-R serves as the primary receptor for the cytokine BAFF (TNFSF13B), and their interaction delivers essential survival and maturation signals to B cells, mediated through downstream pathways including the activation of NF-κB and PI3K. Genetic alterations in TNFRSF13C, including point mutations and deletions, or dysregulation of the BAFF-BAFF-R axis, are increasingly recognized for their contribution to immune pathology [2]. Such aberrations are associated with primary immunodeficiencies like common variable immunodeficiency (CVID), characterized by profound defects in antibody production and recurrent infections, as well as a range of autoimmune diseases such as systemic lupus erythematosus (SLE) and Sjögren's syndrome, and certain B cell malignancies [2-3]. The critical, non-redundant function of BAFF-R in B cell biology highlights its significance as a key node in adaptive immunity and positions the BAFF-BAFF-R pathway as a compelling target for therapeutic intervention in a spectrum of immune-mediated disorders.
The B6-hBAFFR (hTNFRSF13C) mouse is a humanized model constructed by replacing the sequence of the mouse Tnfrsf13c endogenous extracellular domain in situ with the corresponding extracellular domain from the human TNFRSF13C. The B6-hBAFFR (hTNFRSF13C) mice can be used for the study of the pathogenesis of immune-mediated disorders such as common variable immunodeficiency (CVID), systemic lupus erythematosus (SLE), and Sjögren's syndrome, and certain B cell malignancies, as well as for TNFRSF13C-targeted drug development.
B6-hFGFR1c
Product ID:
C001684
Strain:
C57BL/6NCya
Status:
Description:
The FGFR1 gene encodes fibroblast growth factor receptor 1 (FGFR1), a pivotal transmembrane receptor tyrosine kinase widely expressed across diverse cell types, including epithelial, mesenchymal, and neuronal lineages, playing fundamental roles in development, angiogenesis, cell proliferation, differentiation, and migration through activation of intracellular signaling cascades like MAPK/ERK, PI3K/AKT, and STAT [1]. Aberrant FGFR1 expression or mutations are associated with developmental syndromes and various cancers, driving tumor growth, metastasis, and therapeutic resistance; its expression is tightly regulated by diverse cellular signals [2]. A key splice isoform is FGFR1c, predominantly expressed in epithelial cells and characterized by a specific extracellular immunoglobulin-like domain III, conferring high-affinity binding to a subset of FGF ligands crucial for epithelial-mesenchymal interactions during development and adult tissue homeostasis [3]. Dysregulation of FGFR1c signaling is implicated in the pathogenesis of cancers such as breast, prostate, and lung carcinomas, contributing to tumor initiation, progression, angiogenesis, and potentially therapy resistance, highlighting the importance of understanding isoform-specific functions for targeted therapeutic interventions [3-4].
B6-hFGFR1c mice are humanized models generated by gene editing technology, in which the p.22R to partial intron 2 of the mouse Fgfr1 gene was replaced in situ with p.22R to 376E from the coding sequence of the human FGFR1 gene, p.377I to 823X from the coding sequence of the mouse Fgfr1 gene, and the 3'UTR of the mouse Fgfr1 gene. This model can be used to study the pathological mechanisms and therapeutic methods of cancers, metabolic diseases such as obesity, diabetes, and metabolic-associated steatohepatitis (MASH), as well as the screening and development of FGFR1c-targeted drugs, and preclinical efficacy and safety evaluations.
The FGFR1 gene encodes fibroblast growth factor receptor 1 (FGFR1), a pivotal transmembrane receptor tyrosine kinase widely expressed across diverse cell types, including epithelial, mesenchymal, and neuronal lineages, playing fundamental roles in development, angiogenesis, cell proliferation, differentiation, and migration through activation of intracellular signaling cascades like MAPK/ERK, PI3K/AKT, and STAT [1]. Aberrant FGFR1 expression or mutations are associated with developmental syndromes and various cancers, driving tumor growth, metastasis, and therapeutic resistance; its expression is tightly regulated by diverse cellular signals [2]. A key splice isoform is FGFR1c, predominantly expressed in epithelial cells and characterized by a specific extracellular immunoglobulin-like domain III, conferring high-affinity binding to a subset of FGF ligands crucial for epithelial-mesenchymal interactions during development and adult tissue homeostasis [3]. Dysregulation of FGFR1c signaling is implicated in the pathogenesis of cancers such as breast, prostate, and lung carcinomas, contributing to tumor initiation, progression, angiogenesis, and potentially therapy resistance, highlighting the importance of understanding isoform-specific functions for targeted therapeutic interventions [3-4].
B6-hFGFR1c mice are humanized models generated by gene editing technology, in which the p.22R to partial intron 2 of the mouse Fgfr1 gene was replaced in situ with p.22R to 376E from the coding sequence of the human FGFR1 gene, p.377I to 823X from the coding sequence of the mouse Fgfr1 gene, and the 3'UTR of the mouse Fgfr1 gene. This model can be used to study the pathological mechanisms and therapeutic methods of cancers, metabolic diseases such as obesity, diabetes, and metabolic-associated steatohepatitis (MASH), as well as the screening and development of FGFR1c-targeted drugs, and preclinical efficacy and safety evaluations.
B6-hCD47
Product ID:
C001419
Strain:
C57BL/6JCya
Status:
Description:
CD47, also known as Integrin Associated Protein (IAP), is a transmembrane protein that belongs to the immunoglobulin superfamily. It is widely expressed on the surface of almost all normal cells and is highly expressed in tumor cells [1].
SIRPα, a signal regulatory protein mainly expressed on macrophages, inhibits their phagocytosis of target cells by transmitting inhibitory signals when binding to CD47 on other cells. However, some tumor cells can evade phagocytosis and cause tumor immune escape by highly expressing CD47 and binding to SIRPα on macrophages, sending a “don’t eat me” signal. Targeting CD47 antibodies can initiate anti-tumor T cell immune responses and promote cancer-specific lymphocyte activation through macrophage-mediated phagocytosis of tumors. As a result, the CD47-SIRPα signaling pathway has great therapeutic potential and is a highly competitive target in tumor immunotherapy after PD-1/PD-L1 [1-2].
CD47 is a transmembrane protein with its extracellular domain serving as the receptor/ligand binding region and its intracellular domain responsible for signal transduction [3]. B6-hCD47 mice are obtained by replacing the fragment encoding the extracellular domain of CD47 protein in the mouse Cd47 gene with the corresponding human CD47 gene sequence, resulting in a model expressing the extracellular domain of human CD47 protein and the intracellular domain of mouse CD47 protein. This ensures normal binding with human antibodies and other protein drugs while completely retaining the intracellular part of mouse CD47 protein, maintaining normal intracellular signal transduction. B6-hCD47 mice can successfully express human CD47 protein and can be used for research on CD47-targeted inhibitors or antibody drug development and screening, pharmacology and safety evaluation, tumor immunotherapy evaluation, and mechanisms of tumor immune escape systems.
CD47, also known as Integrin Associated Protein (IAP), is a transmembrane protein that belongs to the immunoglobulin superfamily. It is widely expressed on the surface of almost all normal cells and is highly expressed in tumor cells [1].
SIRPα, a signal regulatory protein mainly expressed on macrophages, inhibits their phagocytosis of target cells by transmitting inhibitory signals when binding to CD47 on other cells. However, some tumor cells can evade phagocytosis and cause tumor immune escape by highly expressing CD47 and binding to SIRPα on macrophages, sending a “don’t eat me” signal. Targeting CD47 antibodies can initiate anti-tumor T cell immune responses and promote cancer-specific lymphocyte activation through macrophage-mediated phagocytosis of tumors. As a result, the CD47-SIRPα signaling pathway has great therapeutic potential and is a highly competitive target in tumor immunotherapy after PD-1/PD-L1 [1-2].
CD47 is a transmembrane protein with its extracellular domain serving as the receptor/ligand binding region and its intracellular domain responsible for signal transduction [3]. B6-hCD47 mice are obtained by replacing the fragment encoding the extracellular domain of CD47 protein in the mouse Cd47 gene with the corresponding human CD47 gene sequence, resulting in a model expressing the extracellular domain of human CD47 protein and the intracellular domain of mouse CD47 protein. This ensures normal binding with human antibodies and other protein drugs while completely retaining the intracellular part of mouse CD47 protein, maintaining normal intracellular signal transduction. B6-hCD47 mice can successfully express human CD47 protein and can be used for research on CD47-targeted inhibitors or antibody drug development and screening, pharmacology and safety evaluation, tumor immunotherapy evaluation, and mechanisms of tumor immune escape systems.
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-hDPP4 (line1)
Product ID:
I001187
Strain:
C57BL/6NCya
Status:
Description:
The DPP4 gene (CD26) encodes dipeptidyl peptidase 4, an intrinsic type II transmembrane glycoprotein and a serine exopeptidase involved in glucose and insulin metabolism and immune regulation. The DPP4 protein is a functional receptor for the Middle East Respiratory Syndrome Coronavirus (MERS-CoV). The spike protein of MERS-CoV binds to DPP4, mediating the virus's attachment to host cells and promoting virus-cell fusion, thereby initiating infection [1-2]. Studies have found that the DPP4 protein may interact with the S1 domain of the spike glycoprotein of COVID-19, aiding in enhancing the transmission efficiency of viral particles [3]. Experimental evidence has shown that hDPP4 transgenic mice infected with MERS-CoV experience high mortality and severe pneumonia [4]. These mice infected with Manis javanica HKU4-related coronavirus (MjHKU4r-CoV-1) develop mild to moderate pulmonary histological damage [5]. Thus, gene-edited mice expressing human DPP4 protein are important tools for studying coronavirus infections. Additionally, DPP4 expression is severely dysregulated in diseases such as inflammation, cancer, obesity, and diabetes. DPP4 is highly expressed in the intestine, where it selectively cleaves N-terminal dipeptides from various substrates, including incretins, to inactivate multiple bioactive peptides. Since incretins like glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) are crucial for regulating postprandial insulin secretion, inhibiting DPP4 to elevate endogenous GLP-1 and GIP levels to increase insulin levels has become an important treatment method for type 2 diabetes (T2D) [6].
The B6-hDPP4(line 1) mouse is a humanized model constructed by gene editing technology to replace a partial region of the mouse Dpp4 gene with the human DPP4 gene CDS sequence. This model can be used to study the infection mechanisms of viruses such as MERS-CoV and COVID-19, as well as to develop related virus vaccines. Additionally, this model can be utilized to develop DPP4 inhibitor therapies. Additionally, Cyagen Biosciences has developed B6-hDPP4(line 2) mice (Catalog ID: I001188) on the C57BL/6JCya background strain and BALB/c-hDPP4(line 2) mice (Catalog ID: I001189) on the BALB/cAnCya background strain. These two models replace the mouse Dpp4 gene p.S29 to part of intron 2 with the "Human DPP4 CDS-rBG pA" expression cassette, meeting the experimental needs for different strain backgrounds.
The DPP4 gene (CD26) encodes dipeptidyl peptidase 4, an intrinsic type II transmembrane glycoprotein and a serine exopeptidase involved in glucose and insulin metabolism and immune regulation. The DPP4 protein is a functional receptor for the Middle East Respiratory Syndrome Coronavirus (MERS-CoV). The spike protein of MERS-CoV binds to DPP4, mediating the virus's attachment to host cells and promoting virus-cell fusion, thereby initiating infection [1-2]. Studies have found that the DPP4 protein may interact with the S1 domain of the spike glycoprotein of COVID-19, aiding in enhancing the transmission efficiency of viral particles [3]. Experimental evidence has shown that hDPP4 transgenic mice infected with MERS-CoV experience high mortality and severe pneumonia [4]. These mice infected with Manis javanica HKU4-related coronavirus (MjHKU4r-CoV-1) develop mild to moderate pulmonary histological damage [5]. Thus, gene-edited mice expressing human DPP4 protein are important tools for studying coronavirus infections. Additionally, DPP4 expression is severely dysregulated in diseases such as inflammation, cancer, obesity, and diabetes. DPP4 is highly expressed in the intestine, where it selectively cleaves N-terminal dipeptides from various substrates, including incretins, to inactivate multiple bioactive peptides. Since incretins like glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) are crucial for regulating postprandial insulin secretion, inhibiting DPP4 to elevate endogenous GLP-1 and GIP levels to increase insulin levels has become an important treatment method for type 2 diabetes (T2D) [6].
The B6-hDPP4(line 1) mouse is a humanized model constructed by gene editing technology to replace a partial region of the mouse Dpp4 gene with the human DPP4 gene CDS sequence. This model can be used to study the infection mechanisms of viruses such as MERS-CoV and COVID-19, as well as to develop related virus vaccines. Additionally, this model can be utilized to develop DPP4 inhibitor therapies. Additionally, Cyagen Biosciences has developed B6-hDPP4(line 2) mice (Catalog ID: I001188) on the C57BL/6JCya background strain and BALB/c-hDPP4(line 2) mice (Catalog ID: I001189) on the BALB/cAnCya background strain. These two models replace the mouse Dpp4 gene p.S29 to part of intron 2 with the "Human DPP4 CDS-rBG pA" expression cassette, meeting the experimental needs for different strain backgrounds.
B6-hDPP4 (line 2)
Product ID:
I001188
Strain:
C57BL/6JCya
Status:
Description:
The DPP4 gene (CD26) encodes dipeptidyl peptidase 4, an intrinsic type II transmembrane glycoprotein and a serine exopeptidase involved in glucose and insulin metabolism and immune regulation. The DPP4 protein is a functional receptor for the Middle East Respiratory Syndrome Coronavirus (MERS-CoV). The spike protein of MERS-CoV binds to DPP4, mediating the virus's attachment to host cells and promoting virus-cell fusion, thereby initiating infection [1-2]. Studies have found that the DPP4 protein may interact with the S1 domain of the spike glycoprotein of COVID-19, aiding in enhancing the transmission efficiency of viral particles [3]. Experimental evidence has shown that hDPP4 transgenic mice infected with MERS-CoV experience high mortality and severe pneumonia [4]. These mice infected with Manis javanica HKU4-related coronavirus (MjHKU4r-CoV-1) develop mild to moderate pulmonary histological damage [5]. Thus, gene-edited mice expressing human DPP4 protein are important tools for studying coronavirus infections. Additionally, DPP4 expression is severely dysregulated in diseases such as inflammation, cancer, obesity, and diabetes. DPP4 is highly expressed in the intestine, where it selectively cleaves N-terminal dipeptides from various substrates, including incretins, to inactivate multiple bioactive peptides. Since incretins like glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) are crucial for regulating postprandial insulin secretion, inhibiting DPP4 to elevate endogenous GLP-1 and GIP levels to increase insulin levels has become an important treatment method for type 2 diabetes (T2D) [6].
The B6-hDPP4(line 2) mouse is a humanized model constructed by gene editing technology to replace a partial region of the mouse Dpp4 gene with the human DPP4 gene CDS sequence. This model can be used to study the infection mechanisms of viruses such as MERS-CoV and COVID-19, as well as to develop related virus vaccines. Additionally, this model can be utilized to develop DPP4 inhibitor therapies. Similar models include the B6-hDPP4(line 1) mouse (Catalog ID: I001187), constructed on the C57BL/6NCya background strain, which replaces the sequence of the mouse Dpp4 gene with the human DPP4 gene CDS sequence, and the BALB/c-hDPP4(line 2) mouse (Catalog ID: I001189), constructed on the BALB/cAnCya background strain. These models meet the experimental needs of different strain backgrounds.
The DPP4 gene (CD26) encodes dipeptidyl peptidase 4, an intrinsic type II transmembrane glycoprotein and a serine exopeptidase involved in glucose and insulin metabolism and immune regulation. The DPP4 protein is a functional receptor for the Middle East Respiratory Syndrome Coronavirus (MERS-CoV). The spike protein of MERS-CoV binds to DPP4, mediating the virus's attachment to host cells and promoting virus-cell fusion, thereby initiating infection [1-2]. Studies have found that the DPP4 protein may interact with the S1 domain of the spike glycoprotein of COVID-19, aiding in enhancing the transmission efficiency of viral particles [3]. Experimental evidence has shown that hDPP4 transgenic mice infected with MERS-CoV experience high mortality and severe pneumonia [4]. These mice infected with Manis javanica HKU4-related coronavirus (MjHKU4r-CoV-1) develop mild to moderate pulmonary histological damage [5]. Thus, gene-edited mice expressing human DPP4 protein are important tools for studying coronavirus infections. Additionally, DPP4 expression is severely dysregulated in diseases such as inflammation, cancer, obesity, and diabetes. DPP4 is highly expressed in the intestine, where it selectively cleaves N-terminal dipeptides from various substrates, including incretins, to inactivate multiple bioactive peptides. Since incretins like glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) are crucial for regulating postprandial insulin secretion, inhibiting DPP4 to elevate endogenous GLP-1 and GIP levels to increase insulin levels has become an important treatment method for type 2 diabetes (T2D) [6].
The B6-hDPP4(line 2) mouse is a humanized model constructed by gene editing technology to replace a partial region of the mouse Dpp4 gene with the human DPP4 gene CDS sequence. This model can be used to study the infection mechanisms of viruses such as MERS-CoV and COVID-19, as well as to develop related virus vaccines. Additionally, this model can be utilized to develop DPP4 inhibitor therapies. Similar models include the B6-hDPP4(line 1) mouse (Catalog ID: I001187), constructed on the C57BL/6NCya background strain, which replaces the sequence of the mouse Dpp4 gene with the human DPP4 gene CDS sequence, and the BALB/c-hDPP4(line 2) mouse (Catalog ID: I001189), constructed on the BALB/cAnCya background strain. These models meet the experimental needs of different strain backgrounds.
BALB/c-hDPP4 (line 2)
Product ID:
I001189
Strain:
BALB/cAnCya
Status:
Description:
The DPP4 gene (CD26) encodes dipeptidyl peptidase 4, an intrinsic type II transmembrane glycoprotein and a serine exopeptidase involved in glucose and insulin metabolism and immune regulation. The DPP4 protein is a functional receptor for the Middle East Respiratory Syndrome Coronavirus (MERS-CoV). The spike protein of MERS-CoV binds to DPP4, mediating the virus's attachment to host cells and promoting virus-cell fusion, thereby initiating infection [1-2]. Studies have found that the DPP4 protein may interact with the S1 domain of the spike glycoprotein of COVID-19, aiding in enhancing the transmission efficiency of viral particles [3]. Experimental evidence has shown that hDPP4 transgenic mice infected with MERS-CoV experience high mortality and severe pneumonia [4]. These mice infected with Manis javanica HKU4-related coronavirus (MjHKU4r-CoV-1) develop mild to moderate pulmonary histological damage [5]. Thus, gene-edited mice expressing human DPP4 protein are important tools for studying coronavirus infections. Additionally, DPP4 expression is severely dysregulated in diseases such as inflammation, cancer, obesity, and diabetes. DPP4 is highly expressed in the intestine, where it selectively cleaves N-terminal dipeptides from various substrates, including incretins, to inactivate multiple bioactive peptides. Since incretins like glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) are crucial for regulating postprandial insulin secretion, inhibiting DPP4 to elevate endogenous GLP-1 and GIP levels to increase insulin levels has become an important treatment method for type 2 diabetes (T2D) [6].
The BALB/c-hDPP4(line 2) mouse is a humanized model constructed by gene editing technology to replace a partial region of the mouse Dpp4 gene with the human DPP4 gene CDS sequence. This model can be used to study the infection mechanisms of viruses such as MERS-CoV and COVID-19, as well as to develop related virus vaccines. Additionally, this model can be utilized to develop DPP4 inhibitor therapies. Similar models include the B6-hDPP4(line 1) mouse (Catalog ID: I001187), constructed on the C57BL/6NCya background strain, which replaces the sequence of the mouse Dpp4 gene with the human DPP4 gene CDS sequence, and the B6-hDPP4(line 2) mouse (Catalog ID: I001188), constructed on the C57BL/6JCya background strain. These models meet the experimental needs of different strain backgrounds.
The DPP4 gene (CD26) encodes dipeptidyl peptidase 4, an intrinsic type II transmembrane glycoprotein and a serine exopeptidase involved in glucose and insulin metabolism and immune regulation. The DPP4 protein is a functional receptor for the Middle East Respiratory Syndrome Coronavirus (MERS-CoV). The spike protein of MERS-CoV binds to DPP4, mediating the virus's attachment to host cells and promoting virus-cell fusion, thereby initiating infection [1-2]. Studies have found that the DPP4 protein may interact with the S1 domain of the spike glycoprotein of COVID-19, aiding in enhancing the transmission efficiency of viral particles [3]. Experimental evidence has shown that hDPP4 transgenic mice infected with MERS-CoV experience high mortality and severe pneumonia [4]. These mice infected with Manis javanica HKU4-related coronavirus (MjHKU4r-CoV-1) develop mild to moderate pulmonary histological damage [5]. Thus, gene-edited mice expressing human DPP4 protein are important tools for studying coronavirus infections. Additionally, DPP4 expression is severely dysregulated in diseases such as inflammation, cancer, obesity, and diabetes. DPP4 is highly expressed in the intestine, where it selectively cleaves N-terminal dipeptides from various substrates, including incretins, to inactivate multiple bioactive peptides. Since incretins like glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) are crucial for regulating postprandial insulin secretion, inhibiting DPP4 to elevate endogenous GLP-1 and GIP levels to increase insulin levels has become an important treatment method for type 2 diabetes (T2D) [6].
The BALB/c-hDPP4(line 2) mouse is a humanized model constructed by gene editing technology to replace a partial region of the mouse Dpp4 gene with the human DPP4 gene CDS sequence. This model can be used to study the infection mechanisms of viruses such as MERS-CoV and COVID-19, as well as to develop related virus vaccines. Additionally, this model can be utilized to develop DPP4 inhibitor therapies. Similar models include the B6-hDPP4(line 1) mouse (Catalog ID: I001187), constructed on the C57BL/6NCya background strain, which replaces the sequence of the mouse Dpp4 gene with the human DPP4 gene CDS sequence, and the B6-hDPP4(line 2) mouse (Catalog ID: I001188), constructed on the C57BL/6JCya background strain. These models meet the experimental needs of different strain backgrounds.
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