C57BL/6JCya-Grem1em1flox/Cya
Common Name:
Grem1-flox
Product ID:
S-CKO-08072
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
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Basic Information
Strain Name
Grem1-flox
Strain ID
CKOCMP-23892-Grem1-B6J-VA
Gene Name
Product ID
S-CKO-08072
Gene Alias
Cktsf1b1; Drm; Grem; ld
Background
C57BL/6JCya
NCBI ID
Modification
Conditional knockout
Chromosome
2
Phenotype
Document
Application
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Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Grem1em1flox/Cya mice (Catalog S-CKO-08072) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000099575
NCBI RefSeq
NM_011824
Target Region
Exon 2
Size of Effective Region
~0.8 kb
Detailed Document
Overview of Gene Research
Grem1, also known as Gremlin 1, is a BMP-antagonist. It belongs to a family of secreted cysteine-knot proteins that sequester and inhibit bone morphogenetic proteins (BMPs), preventing BMP-mediated activation of BMP type I and II receptors. Grem1 is involved in multiple biological processes such as embryonic development, organogenesis, and tissue differentiation [4,5].
In osteoarthritis (OA), Grem1-lineage chondrogenic progenitor cells are crucial. Ablation of Grem1-expressing cells in mice causes OA, suggesting that the loss of these progenitor cells, which are depleted by injury-induced OA and aging, contributes to the disease [1]. In pancreatic cancer, Grem1 inactivation in established PDAC in mice leads to a conversion of epithelial into mesenchymal PDAC cells, indicating its role in maintaining cellular heterogeneity [2]. In intervertebral disc degeneration (IVDD), the expression of Grem1 is positively correlated with the severity of IVDD, and Grem1 siRNA can inhibit apoptosis and extracellular matrix alterations in nucleus pulposus cells by mediating the TGF-β/Smad signaling pathway [3].
In conclusion, Grem1 is essential in maintaining normal tissue homeostasis. Mouse models with Grem1 ablation have revealed its significance in diseases like OA, pancreatic cancer, and IVDD. Understanding Grem1's functions provides potential therapeutic targets for these diseases.
References:
1. Ng, Jia Q, Jafarov, Toghrul H, Little, Christopher B, Woods, Susan L, Mukherjee, Siddhartha. 2023. Loss of Grem1-lineage chondrogenic progenitor cells causes osteoarthritis. In Nature communications, 14, 6909. doi:10.1038/s41467-023-42199-1. https://pubmed.ncbi.nlm.nih.gov/37907525/
2. Lan, Linxiang, Evan, Theodore, Li, Huafu, Sadanandam, Anguraj, Behrens, Axel. 2022. GREM1 is required to maintain cellular heterogeneity in pancreatic cancer. In Nature, 607, 163-168. doi:10.1038/s41586-022-04888-7. https://pubmed.ncbi.nlm.nih.gov/35768509/
3. Chen, Shunlun, Lei, Linchuan, Li, Zemin, Zheng, Zhaomin, Wang, Jianru. 2022. Grem1 accelerates nucleus pulposus cell apoptosis and intervertebral disc degeneration by inhibiting TGF-β-mediated Smad2/3 phosphorylation. In Experimental & molecular medicine, 54, 518-530. doi:10.1038/s12276-022-00753-9. https://pubmed.ncbi.nlm.nih.gov/35440754/
4. Gao, Zhichun, Houthuijzen, Julia M, Ten Dijke, Peter, Brazil, Derek P. 2023. GREM1 signaling in cancer: tumor promotor and suppressor? In Journal of cell communication and signaling, 17, 1517-1526. doi:10.1007/s12079-023-00777-4. https://pubmed.ncbi.nlm.nih.gov/37615860/
5. Zhu, Dantong, Zhao, Dong, Wang, Naixue, Jiang, Mingzhe, Zheng, Zhendong. 2023. Current status and prospects of GREM1 research in cancer (Review). In Molecular and clinical oncology, 19, 69. doi:10.3892/mco.2023.2665. https://pubmed.ncbi.nlm.nih.gov/37614374/
Quality Control Standard
Sperm Test
Pre-cryopreservation: Measurement of sperm concentration, determination of sperm viability.
Post-cryopreservation: A vial of cryopreserved sperms is selected for in-vitro fertilization from each batch.
Environmental Standards:SPF
Available Region:Global
Source:Cyagen