Sung Pi-Lin, Wen Kuo-Chang, Horng Huann-Cheng, Chang Chia-Ming, Chen Yi-Jen, Lee Wen-Ling, Wang Peng-Hui
Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan; Department of Obstetrics and Gynecology, National Yang-Ming University, Taipei, Taiwan.
Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan; Institute of BioMedical Informatics, National Yang-Ming University, Taipei, Taiwan.
Taiwan J Obstet Gynecol. 2018 Apr;57(2):255-263. doi: 10.1016/j.tjog.2018.02.015.
Our previous study has shown that high expression of α2,3-sialytransferase type I was associated with advanced stage serous type epithelial ovarian cancer (EOC). The aim of the current study further attempts to evaluate the altered α 2,3-sialylation on the behavior of clear cell type EOC (C-EOC).
Immunohistochemistry staining, bioinformatics analysis and tissue array were used to disclose the clinical significance of over α2,3-sialylation in C-EOC. An α2,3 sialylation inhibitor, soyasaponin I (SsaI) was used to investigate the behavior change of the C-EOC cell line.
We reconfirmed that α2,3-sialylation, instead of α2,6- sialylation, was associated with late-stage C-EOC. Soyasaponin I could inhibit α2,3-sialylation of C-EOC cell lines and increase E-cadherin expression with subsequently suppressing migration of C-EOC cells.
The current study demonstrated the important role of α2,3-linked sialylation in C-EOC and targeting of α2,3-linked sialylation might offer as a potential therapeutic strategy in the future.
我们之前的研究表明,I型α2,3-唾液酸转移酶的高表达与晚期浆液性上皮性卵巢癌(EOC)相关。本研究的目的是进一步评估α2,3-唾液酸化改变对透明细胞型EOC(C-EOC)行为的影响。
采用免疫组织化学染色、生物信息学分析和组织芯片来揭示C-EOC中α2,3-唾液酸化过度的临床意义。使用α2,3-唾液酸化抑制剂大豆皂苷I(SsaI)来研究C-EOC细胞系的行为变化。
我们再次证实,与晚期C-EOC相关的是α2,3-唾液酸化,而非α2,6-唾液酸化。大豆皂苷I可抑制C-EOC细胞系的α2,3-唾液酸化,并增加E-钙黏蛋白的表达,进而抑制C-EOC细胞的迁移。
本研究证明了α2,3-连接的唾液酸化在C-EOC中的重要作用,靶向α2,3-连接的唾液酸化可能在未来提供一种潜在的治疗策略。