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miR-101 regulates cell proliferation and apoptosis by targeting KDM1A in diffuse large B cell lymphoma

Authors Huang Y, Zou Y, Lin L, Ma X, Zheng R

Received 11 December 2018

Accepted for publication 24 January 2019

Published 5 April 2019 Volume 2019:11 Pages 2739—2746


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Antonella D'Anneo

Yiqun Huang, Yong Zou, Luhui Lin, Xudong Ma, Ruiji Zheng

Department of Hematology, Zhangzhou Affiliated Hospital of Fujian Medical University, 363000 Zhangzhou, People’s Republic of China

Background: miR-101 is reported to be associated with cell proliferation and apoptosis. However, it is unknown whether miR-101 expression affects cell proliferation and apoptosis in diffuse large B cell lymphoma (DLBCL). The aim of the present study was to investigate the expression of miR-101 and its effect on cell proliferation and apoptosis in DLBCL.
Methods: miR-101 expression was detected in 30 cases of patients with DLBCL and normal lymph node by qRT-PCR. Then, miR-101 expression was up-regulated and down-regulated in Originated Cell Line-Large Lymphoma 8 (OCL-LY8) cell line, respectively. MTT and flow cytometry assay were used to evaluate the effect of miR-101 on cell proliferation and apoptosis, respectively. As KDM1A was confirmed to be as a specific target of miR-101 by TargetScanHuman, the relationship between MiR-101 and KDM1A was further investigated.
Results: miR-101 expression in patients with DLBCL was significantly reduced compared those in normal lymph node (P<0.05). miR-101 expression was significantly associated with tumor size, clinical stage and International Prognostic Index (IPI) scores (P<0.05). In OCL-LY8 cell line, miR-101 down-regulation significantly promoted cell proliferation and suppressed cell apoptosis. Meanwhile, miR-101 up-regulation reversed this effect. In addition, miR-101 negatively regulated the expression of KDM1A . KDM1A down-regulation was oberved in normal tissues compared with those in DLBCL tissues, which inhibited cell proliferation and promoted cell apoptosis.
Conclusion: These data indicate that miR-101 regulates cell proliferation and apoptosis by targeting KDM1A, which provides a potential therapeutic for DLBCL patients.

Keywords: miR-101, KDM1A, diffuse large B cell lymphoma, proliferation, apoptosis

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