C57BL/6JCya-Rb1em1flox/Cya
Common Name:
Rb1-flox
Product ID:
S-CKO-18611
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
Quantity
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Basic Information
Strain Name
Rb1-flox
Strain ID
CKOCMP-19645-Rb1-B6J-VB
Gene Name
Product ID
S-CKO-18611
Gene Alias
Rb; Rb-1; p110-RB1; pRb; pp105
Background
C57BL/6JCya
NCBI ID
Modification
Conditional knockout
Chromosome
14
Phenotype
Document
Application
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Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Rb1em1flox/Cya mice (Catalog S-CKO-18611) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000022701
NCBI RefSeq
NM_009029
Target Region
Exon 19
Size of Effective Region
~1.1 kb
Detailed Document
Overview of Gene Research
Rb1, short for retinoblastoma susceptibility gene, is a prototype tumor suppressor gene. It plays a key role in restraining cell cycle entry and, along with its family members, regulates numerous cellular processes, determining cell fate. Its function is often suppressed through various mechanisms during tumor progression in many human cancers, such as prostate, lung, and breast cancer, and almost all familial and sporadic cases of retinoblastoma [2,4,5].
In ischemic stroke research, ginsenoside Rb1 (not to be confused with the Rb1 gene) inhibits astrocyte activation by blocking reverse electron transport-derived ROS production from mitochondrial complex I. It also promotes the transfer of astrocytic mitochondria to neurons, conferring neuroprotection. In a mouse model of brain ischemia, CD38 knockdown in the cerebral ventricles diminished the neuroprotective effects of ginsenoside Rb1, suggesting the role of astrocyte mitochondrial transfer in this process [1]. In myocardial ischemia/reperfusion injury studies, ginsenoside Rb1 alleviates injury in rats and protects H9C2 cells. It inhibits cardiomyocyte autophagy through the PI3K/Akt/mTOR signaling pathway, reducing the injury [3].
In summary, Rb1 is a crucial tumor suppressor gene, and its loss-of-function is associated with tumorigenesis in various cancers. Additionally, studies on ginsenoside Rb1 in animal models demonstrate its potential in protecting against ischemic stroke and myocardial ischemia/reperfusion injury, highlighting the importance of Rb1-related research in understanding disease mechanisms and potential therapeutic strategies.
References:
1. Ni, Xue-Chun, Wang, Hong-Fei, Cai, Yuan-Yuan, Li, Jia, Huang, Feng-Qing. 2022. Ginsenoside Rb1 inhibits astrocyte activation and promotes transfer of astrocytic mitochondria to neurons against ischemic stroke. In Redox biology, 54, 102363. doi:10.1016/j.redox.2022.102363. https://pubmed.ncbi.nlm.nih.gov/35696763/
2. Yao, Yiran, Gu, Xiang, Xu, Xiaofang, Ge, Shengfang, Jia, Renbing. 2022. Novel insights into RB1 mutation. In Cancer letters, 547, 215870. doi:10.1016/j.canlet.2022.215870. https://pubmed.ncbi.nlm.nih.gov/35964818/
3. Qin, Guo-Wei, Lu, Pan, Peng, Li, Jiang, Wei. 2021. Ginsenoside Rb1 Inhibits Cardiomyocyte Autophagy via PI3K/Akt/mTOR Signaling Pathway and Reduces Myocardial Ischemia/Reperfusion Injury. In The American journal of Chinese medicine, 49, 1913-1927. doi:10.1142/S0192415X21500907. https://pubmed.ncbi.nlm.nih.gov/34775933/
4. Linn, Paing, Kohno, Susumu, Sheng, Jindan, Watanabe, Yoshihiro, Takahashi, Chiaki. 2021. Targeting RB1 Loss in Cancers. In Cancers, 13, . doi:10.3390/cancers13153737. https://pubmed.ncbi.nlm.nih.gov/34359636/
5. Indovina, Paola, Pentimalli, Francesca, Conti, Daniele, Giordano, Antonio. 2019. Translating RB1 predictive value in clinical cancer therapy: Are we there yet? In Biochemical pharmacology, 166, 323-334. doi:10.1016/j.bcp.2019.06.003. https://pubmed.ncbi.nlm.nih.gov/31176618/
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