The lncRNA MALAT1 protects the endothelium against ox-LDL-induced dysfunction via upregulating the expression of the miR-22-3p target genes CXCR2 and AKT.

Abstract:

:CXCR2 plays a key role in protecting the integrity of the endothelium. Emerging evidence has demonstrated that the long ncRNAs (lncRNA) Human metastasis associated lung adenocarcinoma transcript 1 (MALAT1) participates in the regulation of the pathophysiological processes. However, whether there is crosstalk between CXCR2 and MALAT1 remains unknown. In this study, we demonstrated that MALAT1 was upregulated in patients with unstable angina. MALAT1 silencing significantly downregulated the expression of the miR-22-3p target gene CXCR2 via reversing the effect of the miR-22-3p, resulting in the aggravation of Oxidized low-density lipoprotein (ox-LDL)-induced endothelial injury; this process was associated with the AKT pathway. Thus, MALAT1 protects the endothelium from ox-LDL-induced endothelial dysfunction partly through competing with miR-22-3p for endogenous RNA.

journal_name

FEBS Lett

journal_title

FEBS letters

authors

Tang Y,Jin X,Xiang Y,Chen Y,Shen CX,Zhang YC,Li YG

doi

10.1016/j.febslet.2015.08.046

subject

Has Abstract

pub_date

2015-10-07 00:00:00

pages

3189-96

issue

20 Pt B

eissn

0014-5793

issn

1873-3468

pii

S0014-5793(15)00817-0

journal_volume

589

pub_type

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