Thy1基因,也称为CD90,编码一个25-28 kDa的糖蛋白,位于11q23-q24区域。Thy1蛋白在细胞识别、粘附、信号转导和细胞生长中发挥着重要作用。Thy1的表达在多种类型的细胞中都有发现,包括神经元、内皮细胞、淋巴细胞和肿瘤细胞。
在卵巢癌中,Thy1基因的表达与肿瘤抑制相关。研究发现,将Thy1基因转移到卵巢癌细胞系SKOV-3中可以抑制肿瘤的生长,表明Thy1可能是一个候选的肿瘤抑制基因[1]。此外,Thy1基因的表达也与鼻咽癌的淋巴结转移相关。在鼻咽癌细胞系HONE1中,Thy1基因的表达下调,而在非肿瘤细胞中表达较高。进一步研究表明,Thy1基因的表达抑制可以促进HONE1细胞的生长和转移[4][6]。
在结肠癌中,Thy1基因的表达与不良预后相关。研究发现,Thy1基因的高表达与结直肠癌患者的总体生存率较低相关。此外,Thy1基因的表达与肿瘤的侵袭性和转移能力相关[5]。
在帕金森病中,Thy1基因的表达也具有重要意义。研究发现,Thy1基因的表达与α-突触核蛋白的表达相关,而α-突触核蛋白是帕金森病的关键蛋白。Thy1基因的表达异常可能导致帕金森病的发生和发展[2][7]。
此外,Thy1基因的表达还与抗Thy1肾炎的炎症发展相关。研究发现,Thy1基因的表达与CCL2基因的表达相关,而CCL2基因的表达与巨噬细胞的浸润和炎症相关[3]。
综上所述,Thy1基因在多种疾病中发挥重要作用,包括卵巢癌、鼻咽癌、结肠癌、帕金森病和抗Thy1肾炎。Thy1基因的表达与肿瘤的生长、侵袭性、转移和预后相关。Thy1基因的表达还与α-突触核蛋白的表达和炎症发展相关。因此,Thy1基因可能成为治疗和预防这些疾病的重要靶点。
参考文献:
1. Abeysinghe, Harindra R, Pollock, Stephen J, Guckert, Nedra L, Rosenblatt, Joseph P, Wang, Nancy. . The role of the THY1 gene in human ovarian cancer suppression based on transfection studies. In Cancer genetics and cytogenetics, 149, 1-10. doi:. https://pubmed.ncbi.nlm.nih.gov/15104276/
2. Videlock, Elizabeth J, Hatami, Asa, Zhu, Chunni, Geschwind, Daniel H, Pothoulakis, Charalabos. . Distinct Patterns of Gene Expression Changes in the Colon and Striatum of Young Mice Overexpressing Alpha-Synuclein Support Parkinson's Disease as a Multi-System Process. In Journal of Parkinson's disease, 13, 1127-1147. doi:10.3233/JPD-223568. https://pubmed.ncbi.nlm.nih.gov/37638450/
3. Lu, Yang, Mei, Yan, Chen, Lei, Li, Qinggang, Chen, Xiangmei. 2018. The role of transcriptional factor D-site-binding protein in circadian CCL2 gene expression in anti-Thy1 nephritis. In Cellular & molecular immunology, 16, 735-745. doi:10.1038/s41423-018-0020-4. https://pubmed.ncbi.nlm.nih.gov/29568121/
4. Lung, Hong Lok, Bangarusamy, Dhinoth Kumar, Xie, Dan, Stanbridge, Eric J, Lung, Maria Li. . THY1 is a candidate tumour suppressor gene with decreased expression in metastatic nasopharyngeal carcinoma. In Oncogene, 24, 6525-32. doi:. https://pubmed.ncbi.nlm.nih.gov/16007174/
5. Rohan, Paulo, Dos Santos, Everton Cruz, Abdelhay, Eliana, Binato, Renata. 2023. High Expression of THY1 in Intestinal Gastric Cancer as a Key Factor in Tumor Biology: A Poor Prognosis-Independent Marker Related to the Epithelial-Mesenchymal Transition Profile. In Genes, 15, . doi:10.3390/genes15010028. https://pubmed.ncbi.nlm.nih.gov/38254918/
6. Lung, Hong Lok, Cheung, Arthur Kwok Leung, Cheng, Yue, Stanbridge, Eric J, Lung, Maria Li. . Functional characterization of THY1 as a tumor suppressor gene with antiinvasive activity in nasopharyngeal carcinoma. In International journal of cancer, 127, 304-12. doi:10.1002/ijc.25047. https://pubmed.ncbi.nlm.nih.gov/19921696/
7. Chesselet, Marie-Francoise, Richter, Franziska, Zhu, Chunni, Watson, Melanie B, Subramaniam, Sudhakar R. . A progressive mouse model of Parkinson's disease: the Thy1-aSyn ("Line 61") mice. In Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics, 9, 297-314. doi:10.1007/s13311-012-0104-2. https://pubmed.ncbi.nlm.nih.gov/22350713/