Rbbp4-KO 基因敲除小鼠

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产品名称

Rbbp4-KO 基因敲除小鼠

产品编号

S-KO-04051

品系全称

C57BL/6JCya-Rbbp4em1/Cya

品系背景

C57BL/6JCya

品系编号

KOCMP-19646-Rbbp4-B6J-VA

品系状态

使用本品系发表的文献需注明: Rbbp4-KO 基因敲除小鼠 mice (Strain S-KO-04051) were purchased from Cyagen.
交付类型
周龄
性别
基因型
数量

基本信息

基因研究概述

质控标准

基因
基因全称
retinoblastoma binding protein 4, chromatin remodeling factor
基因别称
RBAP48,mRbAp48
染色体号
Chr 4 (Mouse)
转录本 ID
NCBI: NM_009030 | Ensembl: ENSMUST00000102598
修饰方式
全身性基因敲除
靶向范围
Exon 4~7
敲除长度
~2.7 kb
品系说明
该品系是基于策略设计时的数据库信息制作而成,建议您在购买前查询最新的数据库和相关文献,以获取最准确的表型信息。
表型提示
MGI:1194912Embryos homozygous for a knock-out allele fail to implant in vivo or form outgrowths in vitro and exhibit severe apoptosis, defective inner cell mass specification, hyperacetylated histones, and pre-implantation lethality.
Rbbp4,也称为Retinoblastoma binding protein 4,是一种重要的组蛋白结合蛋白,参与调控基因表达和染色质结构。Rbbp4是多个染色质修饰复合物的核心亚基,包括Polycomb repressive complex 2 (PRC2)和组蛋白去乙酰化酶1/2-containing complexes。这些复合物分别负责组蛋白H3赖氨酸27 (H3K27)的甲基化和去乙酰化,从而影响基因表达和染色质结构。

Rbbp4在多种生物学过程中发挥重要作用,包括细胞周期调控、神经发生、胚胎发育和肿瘤发生。研究表明,Rbbp4在低级别胶质瘤(LGG)和胶质母细胞瘤(GBM)组织中表达上调,并与患者的临床病理特征和预后相关[1]。此外,Rbbp4的表达还与肿瘤免疫浸润相关,高表达的Rbbp4与LGG患者的较差预后相关[1]。

Rbbp4功能障碍会重塑基因组H3K27甲基化和乙酰化的景观,并干扰基因表达[2]。Rbbp4通过与p300相互作用,激活转录并调节细胞存活相关基因的表达,因此,Rbbp4/p300复合物是GBM的潜在治疗靶点[3]。Rbbp4的缺失会破坏神经祖细胞周期调控,导致Tp53乙酰化和细胞凋亡[4]。Rbbp4的缺失还会导致胚胎干细胞(ESC)的过早分化,影响多能性网络的维持[5]。Rbbp4是维持mESC身份的表观遗传障碍,其缺失会促进mESC向2C样细胞的转化[6]。Rbbp4在非小细胞肺癌(NSCLC)中的表达上调与较差的预后相关,其下调可以诱导自噬细胞死亡[7]。Rbbp4是绝经后骨质疏松症(PMOP)的潜在诊断生物标志物,其在PMOP的蛋白互作网络中处于中心位置[8]。Rbbp4在发育中的小鼠新皮质祖细胞中促进神经发生,其缺失会影响神经元输出和祖细胞增殖[9]。Rbbp4通过调节Wnt/β-catenin信号通路促进结肠癌的恶性进展[10]。

综上所述,Rbbp4是一种重要的组蛋白结合蛋白,参与调控基因表达、染色质结构和多种生物学过程。Rbbp4在多种肿瘤中表达上调,并与患者的临床病理特征和预后相关。Rbbp4功能障碍会影响基因表达和染色质结构,进而影响细胞功能和疾病发生。因此,Rbbp4是潜在的肿瘤治疗靶点和诊断生物标志物,其研究有助于深入理解染色质调控的生物学功能和疾病发生机制。

参考文献:
1. Liang, Ruofei, Xiang, Yue, Hu, Chao, Tang, Xiaoping. 2023. Expression and clinical significance of RBBP4 gene in lower-grade glioma: An integrative analysis. In Biochemistry and biophysics reports, 35, 101533. doi:10.1016/j.bbrep.2023.101533. https://pubmed.ncbi.nlm.nih.gov/37664524/
2. Mu, Weipeng, Murcia, Noel S, Smith, Keriayn N, Yee, Della, Magnuson, Terry. . RBBP4 dysfunction reshapes the genomic landscape of H3K27 methylation and acetylation and disrupts gene expression. In G3 (Bethesda, Md.), 12, . doi:10.1093/g3journal/jkac082. https://pubmed.ncbi.nlm.nih.gov/35416979/
3. Mladek, Ann C, Yan, Huihuang, Tian, Shulan, Sarkaria, Jann N, Kitange, Gaspar J. . RBBP4-p300 axis modulates expression of genes essential for cell survival and is a potential target for therapy in glioblastoma. In Neuro-oncology, 24, 1261-1272. doi:10.1093/neuonc/noac051. https://pubmed.ncbi.nlm.nih.gov/35231103/
4. Schultz-Rogers, Laura E, Thayer, Michelle L, Kambakam, Sekhar, Kool, Marcel, McGrail, Maura. 2022. Rbbp4 loss disrupts neural progenitor cell cycle regulation independent of Rb and leads to Tp53 acetylation and apoptosis. In Developmental dynamics : an official publication of the American Association of Anatomists, 251, 1267-1290. doi:10.1002/dvdy.467. https://pubmed.ncbi.nlm.nih.gov/35266256/
5. Huang, Yikai, Su, Ting, Wang, Congcong, Jiang, Qing, Qin, Jinzhong. 2021. Rbbp4 Suppresses Premature Differentiation of Embryonic Stem Cells. In Stem cell reports, 16, 566-581. doi:10.1016/j.stemcr.2021.01.009. https://pubmed.ncbi.nlm.nih.gov/33606987/
6. Ping, Wangfang, Sheng, Yingliang, Hu, Gongcheng, Pan, Guangjin, Yao, Hongjie. . RBBP4 is an epigenetic barrier for the induced transition of pluripotent stem cells into totipotent 2C-like cells. In Nucleic acids research, 51, 5414-5431. doi:10.1093/nar/gkad219. https://pubmed.ncbi.nlm.nih.gov/37021556/
7. Zhan, Yajing, Zhang, Zhiqian, Yin, Ankang, Wang, Juan, Wang, Wei. . RBBP4: A novel diagnostic and prognostic biomarker for non-small-cell lung cancer correlated with autophagic cell death. In Cancer medicine, 13, e70090. doi:10.1002/cam4.70090. https://pubmed.ncbi.nlm.nih.gov/39109577/
8. Yang, Chenggang, Ren, Jing, Li, Bangling, Sun, Yaolan, Shi, Xiaofeng. 2018. Identification of gene biomarkers in patients with postmenopausal osteoporosis. In Molecular medicine reports, 19, 1065-1073. doi:10.3892/mmr.2018.9752. https://pubmed.ncbi.nlm.nih.gov/30569177/
9. Dhanya, Sreeja Kumari, Kalia, Kishan, Mohanty, Sattwik, Reddy, Puli Chandramouli, Muralidharan, Bhavana. 2024. Histone-binding protein RBBP4 is necessary to promote neurogenesis in the developing mouse neocortical progenitors. In eNeuro, , . doi:10.1523/ENEURO.0391-23.2024. https://pubmed.ncbi.nlm.nih.gov/39592227/
10. Li, Yan-Dong, Lv, Zhen, Zhu, Wei-Fang. . RBBP4 promotes colon cancer malignant progression via regulating Wnt/β-catenin pathway. In World journal of gastroenterology, 26, 5328-5342. doi:10.3748/wjg.v26.i35.5328. https://pubmed.ncbi.nlm.nih.gov/32994691/