C57BL/6JCya-Rb1em1flox/Cya
Common Name:
Rb1-flox
Product ID:
S-CKO-04738
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
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Basic Information
Strain Name
Rb1-flox
Strain ID
CKOCMP-19645-Rb1-B6J-VA
Gene Name
Product ID
S-CKO-04738
Gene Alias
Rb; Rb-1; p110-RB1; pRb; pp105
Background
C57BL/6JCya
NCBI ID
Modification
Conditional knockout
Chromosome
14
Phenotype
Document
Application
--
Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Rb1em1flox/Cya mice (Catalog S-CKO-04738) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000022701
NCBI RefSeq
NM_009029
Target Region
Exon 8
Size of Effective Region
~1.5 kb
Detailed Document
Overview of Gene Research
Rb1, the retinoblastoma susceptibility gene, is a prototype tumor suppressor gene. It plays a crucial role in restraining cell cycle entry and, along with its family members, regulates numerous cellular processes and impacts cell response to various stimuli, ultimately determining cell fate [2,3,5]. Almost all mitogenic signals influence cell cycle progression by modulating the function of the RB1 protein through phosphorylation mediated by cyclin-CDK complexes [3].
In ischemic stroke, ginsenoside Rb1 inhibits astrocyte activation and promotes the transfer of astrocytic mitochondria to neurons. It does this by inhibiting NADH dehydrogenase in mitochondrial complex I, blocking reverse electron transport-derived ROS production, and thus inactivating astrocytes to protect mitochondria. In an ischemic mouse brain model, CD38 knockdown in the cerebral ventricles diminished the neuroprotective effects of ginsenoside Rb1, suggesting that astrocyte mitochondrial transfer is involved in the neuroprotective role of ginsenoside Rb1 [1]. In myocardial ischemia/reperfusion injury, ginsenoside Rb1 alleviates injury by inhibiting ROS production from mitochondrial complex I. It decreases mitochondrial ROS production, reduces myocardial infarct size, preserves cardiac function, and limits cardiac fibrosis [4].
In summary, Rb1 is a key tumor suppressor gene involved in cell cycle regulation. Studies using mouse models, such as those related to ischemic stroke and myocardial ischemia/reperfusion injury, have shown that ginsenoside Rb1, which may interact with Rb1-related pathways, can have protective effects through regulating mitochondrial-related processes. These findings contribute to understanding the role of Rb1-associated mechanisms in specific disease areas.
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. 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/
4. Jiang, Lujing, Yin, Xiaojian, Chen, Ya-Hui, Qi, Lian-Wen, Li, Jia. 2021. Proteomic analysis reveals ginsenoside Rb1 attenuates myocardial ischemia/reperfusion injury through inhibiting ROS production from mitochondrial complex I. In Theranostics, 11, 1703-1720. doi:10.7150/thno.43895. https://pubmed.ncbi.nlm.nih.gov/33408776/
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