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C57BL/6JCya-Vhlem1flox/Cya
Common Name:
Vhl-flox
Product ID:
S-CKO-18474
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
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Basic Information
Strain Name
Vhl-flox
Strain ID
CKOCMP-22346-Vhl-B6J-VA
Gene Name
Vhl
Product ID
S-CKO-18474
Gene Alias
Vhlh; pVHL
Background
C57BL/6JCya
NCBI ID
22346
Modification
Conditional knockout
Chromosome
6
Phenotype
MGI:103223
Document
Click here to download >>
Application
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Note
Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Vhlem1flox/Cya mice (Catalog S-CKO-18474) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000035673
NCBI RefSeq
NM_009507
Target Region
Exon 2~3
Size of Effective Region
~1.7 kb
Detailed Document
Click here to download >>
Overview of Gene Research
Vhl, short for von Hippel-Lindau, is a crucial tumor suppressor gene. It is involved in the E3 ligase-mediated regulatory pathway, targeting hypoxia-inducible factor α (HIF1α and HIF2α) for proteasome degradation, thus playing a key role in oxygen sensing and the adaptive response to hypoxia [3,4,6,7]. Vhl is also associated with numerous HIF-independent pathways and is implicated in several vital cellular processes [4]. Genetic models, such as gene-deleted cell lines and KO mouse models, have been instrumental in studying its functions.

Loss-of-function of Vhl is a hallmark of clear cell renal cell carcinoma (ccRCC) [1]. In engineered Vhl-KO cell lines, these cells underwent epithelial-to-mesenchymal transition (EMT), showing increased motility but reduced proliferation and tumorigenicity compared to Vhl-expressing cells. In combined tumors with both Vhl + and Vhl-KO cells, rampant lung metastases occurred, indicating a cooperative metastatic mechanism [1]. In Vhl-KO murine kidney cancer models, the tumors had more immune cell infiltration. Tumor-associated macrophages from Vhl-deficient tumors showed enhanced glucose consumption, phagocytosis, and inflammatory transcriptional signatures, while lymphocytes had reduced activation and lower response to anti-PD-1 therapy [2]. Vhl-deficiency in renal cells led to reductive stress, characterized by an increased NADH/NAD+ ratio, impaired cellular respiration, and upregulated reductive carboxylation of glutamine [5].

In conclusion, Vhl is essential for regulating oxygen-sensing pathways and various cellular processes. The use of Vhl KO models has provided valuable insights into its role in ccRCC, including metastasis, immune landscape reprogramming, and metabolic changes. Understanding Vhl's functions through these models can potentially lead to new strategies for treating ccRCC.

References:
1. Hu, Junhui, Tan, Ping, Ishihara, Moe, Xu, Hua, Wu, Lily. 2023. Tumor heterogeneity in VHL drives metastasis in clear cell renal cell carcinoma. In Signal transduction and targeted therapy, 8, 155. doi:10.1038/s41392-023-01362-2. https://pubmed.ncbi.nlm.nih.gov/37069149/
2. Wolf, Melissa M, Madden, Matthew Z, Arner, Emily N, Rathmell, W Kimryn, Rathmell, Jeffrey C. 2024. VHL loss reprograms the immune landscape to promote an inflammatory myeloid microenvironment in renal tumorigenesis. In The Journal of clinical investigation, 134, . doi:10.1172/JCI173934. https://pubmed.ncbi.nlm.nih.gov/38618956/
3. Zhang, Jing, Zhang, Qing. 2018. VHL and Hypoxia Signaling: Beyond HIF in Cancer. In Biomedicines, 6, . doi:10.3390/biomedicines6010035. https://pubmed.ncbi.nlm.nih.gov/29562667/
4. Hudler, Petra, Urbancic, Mojca. 2022. The Role of VHL in the Development of von Hippel-Lindau Disease and Erythrocytosis. In Genes, 13, . doi:10.3390/genes13020362. https://pubmed.ncbi.nlm.nih.gov/35205407/
5. Vellama, Hans, Eskla, Kattri-Liis, Eichelmann, Hillar, Vasar, Eero, Luuk, Hendrik. 2023. VHL-deficiency leads to reductive stress in renal cells. In Free radical biology & medicine, 208, 1-12. doi:10.1016/j.freeradbiomed.2023.07.029. https://pubmed.ncbi.nlm.nih.gov/37506952/
6. Chittiboina, Prashant, Lonser, Russell R. . Von Hippel-Lindau disease. In Handbook of clinical neurology, 132, 139-56. doi:10.1016/B978-0-444-62702-5.00010-X. https://pubmed.ncbi.nlm.nih.gov/26564077/
7. Kaelin, William G. . The VHL Tumor Suppressor Gene: Insights into Oxygen Sensing and Cancer. In Transactions of the American Clinical and Climatological Association, 128, 298-307. doi:. https://pubmed.ncbi.nlm.nih.gov/28790514/
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
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