TMED3,全称Transmembrane emp24 trafficking protein 3,是TMED家族成员之一,属于一个在真核生物中负责细胞内蛋白转运和固有免疫信号传递的蛋白家族。TMED3在多种生物学过程中扮演重要角色,包括细胞内蛋白质运输、细胞信号转导、免疫反应以及肿瘤发生发展等。
TMED3在细胞内蛋白质运输中发挥重要作用。有研究表明,在细胞内质网(ER)应激条件下,TMED3蛋白复合物参与调控跨膜蛋白的非经典蛋白分泌途径,将内质网形式的跨膜蛋白运输到细胞膜上,而不经过高尔基体。这一过程对于维持细胞功能的正常运作至关重要[1]。
在肿瘤发生发展过程中,TMED3也扮演了重要角色。例如,在肝细胞癌(HCC)中,TMED3的表达水平与肿瘤的侵袭性和患者的不良预后相关。TMED3通过IL-11/STAT3信号通路促进肝细胞癌的进展[2]。在前列腺癌中,TMED3作为上皮细胞标志基因,其表达水平与患者的预后和免疫状态相关。TMED3的过表达与前列腺癌细胞的恶性增殖相关[3]。此外,TMED3在食管鳞状细胞癌(ESCC)、骨肉瘤、胶质瘤、肺鳞状细胞癌和脊索瘤等多种肿瘤中也表现出促进肿瘤细胞增殖、迁移和抑制凋亡的作用[4][5][6][7][8]。
综上所述,TMED3在细胞内蛋白质运输和肿瘤发生发展中发挥重要作用。深入研究TMED3的功能和调控机制,有助于揭示其在疾病发生发展中的角色,为疾病的诊断、治疗和预防提供新的思路和策略。
参考文献:
1. Park, Hak, Seo, Soo Kyung, Sim, Ju-Ri, Lee, Jae Myun, Lee, Min Goo. 2022. TMED3 Complex Mediates ER Stress-Associated Secretion of CFTR, Pendrin, and SARS-CoV-2 Spike. In Advanced science (Weinheim, Baden-Wurttemberg, Germany), 9, e2105320. doi:10.1002/advs.202105320. https://pubmed.ncbi.nlm.nih.gov/35748162/
2. Zheng, Hao, Yang, Yuan, Han, Jun, Ren, Hao, Zhou, Wei-Ping. 2016. TMED3 promotes hepatocellular carcinoma progression via IL-11/STAT3 signaling. In Scientific reports, 6, 37070. doi:10.1038/srep37070. https://pubmed.ncbi.nlm.nih.gov/27901021/
3. Zhu, Weian, Zeng, Hengda, Huang, Jiongduan, Luo, Yun, Lai, Wenjie. 2023. Integrated machine learning identifies epithelial cell marker genes for improving outcomes and immunotherapy in prostate cancer. In Journal of translational medicine, 21, 782. doi:10.1186/s12967-023-04633-2. https://pubmed.ncbi.nlm.nih.gov/37925432/
4. Yang, Yuxian, Liu, Shiliang, Xie, Chunxia, Xi, Mian, Zhao, Lei. 2022. Trafficking protein TMED3 promotes esophageal squamous cell carcinoma. In Biomedical journal, 46, 100528. doi:10.1016/j.bj.2022.03.013. https://pubmed.ncbi.nlm.nih.gov/35358714/
5. Xu, Wei, Li, Yifan, Ye, Xiaojian, Zhang, Xiangyang, Li, Zhikun. 2021. TMED3/RPS15A Axis promotes the development and progression of osteosarcoma. In Cancer cell international, 21, 630. doi:10.1186/s12935-021-02340-w. https://pubmed.ncbi.nlm.nih.gov/34838013/
6. Liao, Gang, Zhang, Meimei, Wang, Chunliang. 2022. Analysis and Validation of TMED3 correlates with poor prognosis and tumor immune infiltration of glioma. In Journal of cancer research and clinical oncology, 149, 3485-3494. doi:10.1007/s00432-022-04257-x. https://pubmed.ncbi.nlm.nih.gov/35951089/
7. Xie, An, Xu, Xinping, Kuang, Peng, Zhang, Ling, Yu, Feng. 2021. TMED3 promotes the progression and development of lung squamous cell carcinoma by regulating EZR. In Cell death & disease, 12, 804. doi:10.1038/s41419-021-04086-9. https://pubmed.ncbi.nlm.nih.gov/34429402/
8. Yang, Jinxing, Huang, Hanwen, Xiao, Dan, Zheng, Yanfang, Chen, Zhong. 2021. Knockdown of TMED3 inhibits cell viability and migration and increases apoptosis in human chordoma cells. In International journal of oncology, 58, . doi:10.3892/ijo.2021.5195. https://pubmed.ncbi.nlm.nih.gov/33760171/