摘要
目的探讨长链非编码RNA(LncRNA)TCONS_00003757在甲状腺乳头状癌中的表达意义以及对甲状腺乳头状癌TPC-1细胞增殖、侵袭能力的影响。方法收集2017年10月至2018年3月于唐山市工人医院手术切除的甲状腺乳头状癌标本以及对应的癌旁正常组织共60例,采用实时定量PCR技术检测甲状腺乳头癌组织中LncRNA TCONS_00003757的表达水平,并分析其与患者临床病理资料的关系。应用小干扰RNA(siRNA)沉默TPC-1细胞中LncRNA TCONS_00003757和ST3GAL5的表达,通过MTT、细胞侵袭实验、划痕实验检测LncRNA TCONS_00003757和ST3GAL5对甲状腺乳头状癌细胞增殖、侵袭和迁移的影响,应用Western印迹法检测LncRNA TCONS_00003757对ST3GAL5表达的影响。结果LncRNA TCONS_00003757在甲状腺乳头状癌组织中表达水平显著高于癌旁正常组织(P<0.05),并与有无淋巴结转移和腺外侵犯显著相关(P<0.05)。LncRNA TCONS_00003757在TPC-1细胞中的表达水平显著高于正常人甲状腺滤泡上皮Nthy-ori 3-1细胞(P<0.05);沉默LncRNA TCONS_00003757和ST3GAL5的表达,抑制了甲状腺癌TPC-1细胞的增殖、侵袭和迁移,并且沉默LncRNA TCONS_00003757可降低ST3GAL5的表达(P<0.05)。结论LncRNA TCONS_00003757在甲状腺乳头状癌中表达显著增加,且与甲状腺乳头状癌的发生发展相关。沉默LncRNA TCONS_00003757可能通过降低ST3GAL5的表达抑制甲状腺乳头状癌细胞的增殖、侵袭和迁移能力。
Objective To investigate the expression of LncRNA TCONS_00003757 in papillary thyroid carcinoma(PTC), and to explore the effect of LncRNA TCONS_00003757 on the proliferation, migration, and invasion of TPC-1 cells. Methods Sixty cases of papillary thyroid carcinoma specimens and paired normal tissues were collected after surgery from October 2017 to March 2018 in the Tangshan Workers Hospital. Real-time PCR analysis was used to examine the expression level of LncRNA TCONS_00003757 in PTC tissues, and the association of LncRNA TCONS_00003757 expression levels with the clinicopathological data of patients was analyzed. The effects of LncRNA TCONS_00003757 and ST3GAL5 silencing on the proliferation, migration, and invasion of TPC-1 cells were assessed by MTT, scratch test, and transwell assay. Protein expression of ST3GAL5 was detected by Western blot after LncRNA TCONS_00003757 silencing. Results LncRNA TCONS_00003757 expression was increased in PTC tissues compared with that in normal tissues(P<0.05), which was correlated with capsule invasion and lymph node metastasis(P<0.05). LncRNA TCONS_00003757 expression in TPC-1 cells was higher than that in normal thyroid follicular epithelial Nthy-ori 3-1 cells(P<0.05). LncRNA TCONS_00003757 and ST3GAL5 silencing inhibited the proliferation, migration, and invasion of thyroid cancer TPC-1 cells, and ST3GAL5 expression was decreased after LncRNA TCONS_00003757 silencing(P<0.05). Conclusion LncRNA TCONS_00003757 expression in PTC is significantly increased and correlated with its occurrence and development. Silencing LncRNA TCONS_00003757 may inhibit the proliferation, migration, and invasion of thyroid papillary cancer cells via decreasing ST3GAL5 expression.
作者
南欣雨
孙琪
房辉
郑倩
杨莹
王向楠
孙丽静
Nan Xinyu;Sun Qi;Fang Hui;Zheng Qian;Yang Ying;Wang Xiangnan;Sun Lijing(Graduate School of North China University of Science and Technology,Tangshan 063000,China;Graduate School of Hebei Medical University,Shijiazhuang 050017,China;Department of Endocrinology,Tangshan Worker Hospital,Tangshan 063000,China)
出处
《中华内分泌代谢杂志》
CAS
CSCD
北大核心
2019年第4期282-288,共7页
Chinese Journal of Endocrinology and Metabolism
基金
河北省科技计划项目(17277716D).
