OTUD6A,也称为卵巢肿瘤域包含蛋白6A,是一种去泛素化酶。去泛素化是蛋白质修饰的一种形式,它涉及从目标蛋白上移除泛素分子,从而影响蛋白质的稳定性、活性和功能。OTUD6A在多种生物学过程中发挥作用,包括细胞周期调控、炎症反应、转录调控和肿瘤发生等。
OTUD6A通过与多种蛋白质相互作用,调节它们的稳定性和活性。例如,OTUD6A可以与细胞周期蛋白CDC6相互作用,通过去除CDC6上的泛素链,使其稳定并促进肿瘤进展和化疗耐药性[1]。此外,OTUD6A还可以与STING蛋白相互作用,通过去除STING上的泛素链,维持STING的稳定性,并促进心肌炎症和肥厚[2]。OTUD6A还可以与TEAD4转录因子相互作用,通过调节TEAD4介导的转录程序,影响细胞增殖和发育[3]。此外,OTUD6A还可以与c-Myc蛋白相互作用,通过去除c-Myc上的泛素链,使其稳定并促进前列腺癌的发生[4]。OTUD6A还可以与Aurora-A激酶相互作用,通过去除Aurora-A上的泛素链,使其稳定并激活其激酶活性,从而促进细胞增殖[5]。OTUD6A还可以与STAT3信号传导蛋白相互作用,通过去除STAT3上的泛素链,使其稳定并促进肾脏纤维化[6]。OTUD6A还可以与Drp1蛋白相互作用,通过去除Drp1上的泛素链,使其稳定并促进线粒体分裂和肿瘤发生[7]。OTUD6A还可以与TopBP1蛋白相互作用,通过去除TopBP1上的泛素链,使其稳定并促进乳腺癌进展和化疗耐药性[8]。此外,OTUD6A的表达水平还受到p53蛋白的调控[9]。OTUD6A还可以与其他去泛素化酶如USP29协同作用,通过稳定Snail蛋白,促进胃癌细胞的迁移[10]。
综上所述,OTUD6A是一种重要的去泛素化酶,通过与多种蛋白质相互作用,调节它们的稳定性和活性,影响多种生物学过程,包括细胞周期调控、炎症反应、转录调控和肿瘤发生等。OTUD6A的研究有助于深入理解去泛素化修饰的生物学功能和疾病发生机制,为疾病的治疗和预防提供新的思路和策略。
参考文献:
1. Cui, Jianfeng, Liu, Xiaochen, Shang, Qinghong, Shi, Benkang, Zou, Yongxin. 2024. Deubiquitination of CDC6 by OTUD6A promotes tumour progression and chemoresistance. In Molecular cancer, 23, 86. doi:10.1186/s12943-024-01996-y. https://pubmed.ncbi.nlm.nih.gov/38685067/
2. Fang, Zimin, Han, Jibo, Lin, Liming, Huang, Zhouqing, Liang, Guang. 2024. Deubiquitinase OTUD6a drives cardiac inflammation and hypertrophy by deubiquitination of STING. In Biochimica et biophysica acta. Molecular basis of disease, 1870, 167061. doi:10.1016/j.bbadis.2024.167061. https://pubmed.ncbi.nlm.nih.gov/38342418/
3. Kim, Hyo Jin, Choi, Yunsik, Lee, Yuri, Hwangbo, Mi, Kim, Jongchan. 2024. OTUD6A orchestrates complex modulation of TEAD4-mediated transcriptional programs. In FEBS letters, 598, 1045-1060. doi:10.1002/1873-3468.14861. https://pubmed.ncbi.nlm.nih.gov/38594215/
4. Peng, Yunhua, Liu, Jing, Wang, Zhen, Liu, Jiankang, Long, Jiangang. 2022. Prostate-specific oncogene OTUD6A promotes prostatic tumorigenesis via deubiquitinating and stabilizing c-Myc. In Cell death and differentiation, 29, 1730-1743. doi:10.1038/s41418-022-00960-x. https://pubmed.ncbi.nlm.nih.gov/35217790/
5. Kim, Hyo Jin, Kim, Jongchan. 2021. OTUD6A Is an Aurora Kinase A-Specific Deubiquitinase. In International journal of molecular sciences, 22, . doi:10.3390/ijms22041936. https://pubmed.ncbi.nlm.nih.gov/33669244/
6. Sun, Xiaoyu, Chen, Shuhong, Zhao, Ying, Huang, Shengbin, Liang, Guang. 2023. OTUD6A in tubular epithelial cells mediates angiotensin II-induced kidney injury by targeting STAT3. In American journal of physiology. Cell physiology, 326, C400-C413. doi:10.1152/ajpcell.00394.2023. https://pubmed.ncbi.nlm.nih.gov/38105755/
7. Shi, Le, Liu, Jing, Peng, Yunhua, Liu, Jiankang, Long, Jiangang. 2020. Deubiquitinase OTUD6A promotes proliferation of cancer cells via regulating Drp1 stability and mitochondrial fission. In Molecular oncology, 14, 3169-3183. doi:10.1002/1878-0261.12825. https://pubmed.ncbi.nlm.nih.gov/33070427/
8. Zhao, Yan, Huang, Xinping, Zhu, Dan, Tian, Yonglu, Zheng, Xiaofeng. 2022. Deubiquitinase OTUD6A promotes breast cancer progression by increasing TopBP1 stability and rendering tumor cells resistant to DNA-damaging therapy. In Cell death and differentiation, 29, 2531-2544. doi:10.1038/s41418-022-01036-6. https://pubmed.ncbi.nlm.nih.gov/35768646/
9. Kim, Soo-Yeon, Kwon, Seul-Ki, Lee, So-Young, Baek, Kwang-Hyun. 2018. Ubiquitin-specific peptidase 5 and ovarian tumor deubiquitinase 6A are differentially expressed in p53+/+ and p53-/- HCT116 cells. In International journal of oncology, 52, 1705-1714. doi:10.3892/ijo.2018.4302. https://pubmed.ncbi.nlm.nih.gov/29512757/
10. Qian, Wenli, Li, Qi, Wu, Xinglong, Yang, Xiao-Dong, Hou, Zhaoyuan. 2020. Deubiquitinase USP29 promotes gastric cancer cell migration by cooperating with phosphatase SCP1 to stabilize Snail protein. In Oncogene, 39, 6802-6815. doi:10.1038/s41388-020-01471-0. https://pubmed.ncbi.nlm.nih.gov/32973332/