Long non-coding RNA EPIC1 (Lnc-EPIC1) binds MYC protein, which is essential for MYC function and expression of MYC target genes. The current study tested its expression and potential functions in human colon cancer cells. We show that Lnc-EPIC1 expression is elevated in human colon cancer tissues and primary human colon cancer cells. Whereas its expression is relatively low in normal colon tissues and colon epithelial cells. In the primary human colon cancer cells, Lnc-EPIC1 siRNA largely inhibited cancer cell growth, proliferation, migration and invasion. Further, Lnc-EPIC1 silencing induced significant apoptosis activation in colon cancer cells. Conversely, ectopic overexpression of Lnc-EPIC1 augmented colon cancer cell growth, proliferation, migration and invasion. RNA-immunoprecipitation and RNA pull-down results confirmed that Lnc-EPIC1 directly binds MYC protein in colon cancer cells. MYC target proteins, including cyclin A, cyclin D and CDK9, were downregulated with Lnc-EPIC1 silencing, but upregulated after Lnc-EPIC1 overexpression in colon cancer cells. Further Lnc-EPIC1 silencing or overexpression failed to alter functions of MYC-knockout colon cancer cells. Collectively, overexpressed Lnc-EPIC1 is important for the progression of human colon cancer cells.
基金:
National Natural Science
Foundation of China (No. 81570549 and 81472242),
Shanghai Municipal Health Commission
(No.201840233 and 20194Y0373), Shanghai Changing
District Municipal Health Commission
(No.20194Y002) and the Research Fund of Shanghai
Tongren Hospital (No.2019shtrxx03).
语种:
外文
PubmedID:
中科院(CAS)分区:
出版当年[2019]版:
大类|2 区医学
小类|2 区老年医学3 区细胞生物学
最新[2023]版:
大类|3 区医学
小类|3 区细胞生物学3 区老年医学
第一作者:
第一作者机构:[1]Department of Gastroenterology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
通讯作者:
推荐引用方式(GB/T 7714):
Wu Qiong,Wei Jue,Zhao Chen,et al.Targeting LncRNA EPIC1 to inhibit human colon cancer cell progression.[J].Aging.2020,12:doi:10.18632/aging.103790.
APA:
Wu Qiong,Wei Jue,Zhao Chen,Xiang Shihao,Shi Min&Wang Yugang.(2020).Targeting LncRNA EPIC1 to inhibit human colon cancer cell progression..Aging,12,
MLA:
Wu Qiong,et al."Targeting LncRNA EPIC1 to inhibit human colon cancer cell progression.".Aging 12.(2020)