SOX2OT knockdown derived changes in mitotic regulatory gene network of cancer cells.

Abstract:

Background:SOX2 overlapping transcript (SOX2OT) is a long non-coding RNA, over-expressed in human tumor tissues and embryonic cells. Evidences support its function in the cell cycle; however there is no clear mechanism explaining its function in cell proliferation regulation. Here we investigated cancer cell response to SOX2OT knockdown by RNA sequencing. Methods:SOX2OT expression was inhibited by siRNA in two cancer cell lines (A549, U-87 MG), then the RNA of treated cells were used for the cDNA library synthesis and RNA sequencing. The differentially expressed genes were used for functional enrichment and the gene expression network was analyzed to find the most relevant biological process with SOX2OT function. Furthermore, the expression change of candidate genes was measured by qRT-PCR for more confirmation and the cell cycle was monitored by PI staining. Results:Our findings showed that SOX2OT knockdown affects the cellular gene expression generally with enriched cell proliferation and development biological process. Particularly, the cell cycle and mitotic regulatory genes expression including: CDK2, CDK2AP2, ACTR3, and chromosome structure associated genes like SMC4, INCENP and GNL3L are changed in treated cancer cells. Conclusion:Our results propound SOX2OT association with cell cycle and mitosis regulation in cancer cells.

journal_name

Cancer Cell Int

authors

Saghaeian Jazi M,Samaei NM,Mowla SJ,Arefnezhad B,Kouhsar M

doi

10.1186/s12935-018-0618-8

subject

Has Abstract

pub_date

2018-09-05 00:00:00

pages

129

issn

1475-2867

pii

618

journal_volume

18

pub_type

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