Cox5a-KO 基因敲除小鼠

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产品名称

Cox5a-KO 基因敲除小鼠

产品编号

S-KO-01597

品系全称

C57BL/6JCya-Cox5aem1/Cya

品系背景

C57BL/6JCya

品系编号

KOCMP-12858-Cox5a-B6J-VA

品系状态

使用本品系发表的文献需注明: Cox5a-KO 基因敲除小鼠 mice (Strain S-KO-01597) 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
cytochrome c oxidase subunit 5A
基因别称
CcOX
染色体号
Chr 9 (Mouse)
转录本 ID
NCBI: NM_007747 | Ensembl: ENSMUST00000000090
修饰方式
全身性基因敲除
靶向范围
Exon 2~3
敲除长度
~2.5 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
COX5A,即细胞色素c氧化酶亚基5A,是线粒体电子传递链中细胞色素c氧化酶复合物的一个组成部分。该复合物在细胞能量代谢中发挥着核心作用,通过氧化还原反应将电子从细胞色素c传递给氧,从而生成水,并在此过程中产生能量分子ATP。COX5A是细胞色素c氧化酶复合物中唯一一个由核基因编码的亚基,其余亚基均由线粒体DNA编码。这一特性使得COX5A在细胞能量代谢的调控中扮演了关键角色。

研究显示,COX5A的表达和活性与多种疾病的发生发展密切相关。例如,在心脏疾病中,COX5A的表达降低与心肌病的发生有关[1]。在系统性红斑狼疮(SLE)患者中,COX5A的表达升高与疾病活动性和器官损伤相关[2]。此外,COX5A在化疗药物引起的毒副作用中也发挥重要作用,如阿霉素(Doxorubicin,DOX)诱导的心肌毒性[3]。此外,COX5A还在新生儿缺氧缺血性脑病(HIE)的神经保护中发挥重要作用[4]。COX5A的表达降低与阿尔茨海默病(AD)相关的认知衰退有关[5]。在乳腺癌中,COX5A的表达升高与预后不良、转移和化疗耐药性相关[6]。在血管平滑肌细胞(VSMC)表型调节和新生内膜形成中,COX5A通过改善线粒体呼吸功能和减少氧化应激发挥保护作用[7]。此外,COX5A基因突变导致的COX5A功能异常,会导致线粒体疾病,表现为生长迟缓、乳酸酸中毒、低血糖和身材矮小[8]。在高脂肪饮食诱导的胰岛素抵抗大鼠的骨骼肌中,COX5A启动子的高甲基化与线粒体功能障碍相关[9]。在卵巢早衰(POI)患者中,CLPP的抑制通过影响COX5A的降解,导致线粒体功能障碍和细胞凋亡[10]。

综上所述,COX5A在细胞能量代谢、疾病发生发展以及神经保护中发挥重要作用。COX5A的表达和活性与多种疾病的发生发展密切相关,包括心脏疾病、SLE、化疗药物毒性、新生儿缺氧缺血性脑病、阿尔茨海默病、乳腺癌、血管疾病和线粒体疾病。COX5A可能成为这些疾病的治疗和预防的新靶点。

参考文献:
1. Zhang, Peipei, Lu, Hao, Wu, Yuan, Qian, Juying, Ge, Junbo. 2023. COX5A Alleviates Doxorubicin-Induced Cardiotoxicity by Suppressing Oxidative Stress, Mitochondrial Dysfunction and Cardiomyocyte Apoptosis. In International journal of molecular sciences, 24, . doi:10.3390/ijms241210400. https://pubmed.ncbi.nlm.nih.gov/37373547/
2. Cai, Minglong, Qin, Yi, Wan, An, Tang, Jun, Chen, Zhu. 2023. COX5A as a potential biomarker for disease activity and organ damage in lupus. In Clinical and experimental medicine, 23, 4745-4756. doi:10.1007/s10238-023-01215-w. https://pubmed.ncbi.nlm.nih.gov/37891386/
3. Zhang, Peipei, Chen, Zhangwei, Lu, Danbo, Qian, Juying, Ge, Junbo. 2020. Overexpression of COX5A protects H9c2 cells against doxorubicin-induced cardiotoxicity. In Biochemical and biophysical research communications, 524, 43-49. doi:10.1016/j.bbrc.2020.01.013. https://pubmed.ncbi.nlm.nih.gov/31980176/
4. Jiang, Ya, Bai, Xue, Li, Ting-Ting, Liu, Jia, Xiong, Liu-Lin. 2020. COX5A over-expression protects cortical neurons from hypoxic ischemic injury in neonatal rats associated with TPI up-regulation. In BMC neuroscience, 21, 18. doi:10.1186/s12868-020-00565-5. https://pubmed.ncbi.nlm.nih.gov/32349668/
5. Xiyang, Yan-Bin, Liu, Ruan, Wang, Xu-Yang, Wang, Ting-Hua, Zhang, Jie. 2020. COX5A Plays a Vital Role in Memory Impairment Associated With Brain Aging via the BDNF/ERK1/2 Signaling Pathway. In Frontiers in aging neuroscience, 12, 215. doi:10.3389/fnagi.2020.00215. https://pubmed.ncbi.nlm.nih.gov/32754029/
6. Zeng, Jin, Li, Guoli, Xia, Yan, Xie, Xinyou, Zhang, Jun. 2020. miR-204/COX5A axis contributes to invasion and chemotherapy resistance in estrogen receptor-positive breast cancers. In Cancer letters, 492, 185-196. doi:10.1016/j.canlet.2020.07.027. https://pubmed.ncbi.nlm.nih.gov/32758616/
7. Guan, Haijing, Sun, Jingwen, Liang, Xiuying, Yao, Wenjuan. . Protective Role of Cytochrome C Oxidase 5A (COX5A) against Mitochondrial Disorder and Oxidative Stress in VSMC Phenotypic Modulation and Neointima Formation. In Current vascular pharmacology, 21, 128-142. doi:10.2174/1570161121666230315142507. https://pubmed.ncbi.nlm.nih.gov/36924093/
8. Torraco, Alessandra, Morlino, Silvia, Rizza, Teresa, Bertini, Enrico, Carrozzo, Rosalba. 2022. A novel homozygous variant in COX5A causes an attenuated phenotype with failure to thrive, lactic acidosis, hypoglycemia, and short stature. In Clinical genetics, 102, 56-60. doi:10.1111/cge.14127. https://pubmed.ncbi.nlm.nih.gov/35246835/
9. Gong, Ying-ying, Liu, Yuan-yuan, Li, Jin, Cao, Xiao-pei, Xiao, Hai-peng. 2014. Hypermethylation of Cox5a promoter is associated with mitochondrial dysfunction in skeletal muscle of high fat diet-induced insulin resistant rats. In PloS one, 9, e113784. doi:10.1371/journal.pone.0113784. https://pubmed.ncbi.nlm.nih.gov/25436770/
10. Yuan, Xiong, Ma, Wenjie, Chen, Shuping, Tan, Rongrong, Wu, Jie. 2023. CLPP inhibition triggers apoptosis in human ovarian granulosa cells via COX5A abnormality-Mediated mitochondrial dysfunction. In Frontiers in genetics, 14, 1141167. doi:10.3389/fgene.2023.1141167. https://pubmed.ncbi.nlm.nih.gov/37007963/