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  • Title: LncRNA HCG11 Accelerates Atherosclerosis via Regulating the miR-224-3p/JAK1 Axis.
    Author: Zhou H, Song WH.
    Journal: Biochem Genet; 2023 Feb; 61(1):372-389. PubMed ID: 35931919.
    Abstract:
    Atherosclerosis (AS) is the typical cardiovascular disease, which is the main underlying inducement of cardiovascular diseases. Aberrant expression of long noncoding RNA HLA complex group 11 (HCG11) was engaged with atherosclerosis. The objective of the present research was to explore the role and the potential mechanism of HCG11 in AS. Human umbilical vein endothelial cells (HUVECs) were stimulated with oxidized low-density lipoprotein (ox-LDL) to induce the AS model in vitro. The cell viability was detected by MTT assay. Flow cytometry was performed to determine cell pyroptosis. Gene and protein levels were detected by qPCR or Western blot assay. The interaction between HCG11, miR-224-3p, and Janus kinase 1 (JAK1) was validated by dual-luciferase reporter assays. Ox-LDL treatment aggravated cell pyroptosis and inflammation in HUVECs. And the levels of HCG11 and JAK1 was enhanced in ox-LDL-induced HUVECs, while miR-224-3p expression was reduced. Additionally, knockdown of HCG11 or miR-224-3p overexpression reversed the ox-LDL-induced cell viability decline and the increase of cell pyroptosis and inflammation-related proteins, including gasdermin D N-terminal (GSDMD-N), Caspase-1, NOD-like receptor family pyrin domain-containing 3 (NLRP3), interleukin 18 (IL-18), and interleukin 1beta (IL-1β). Moreover, HCG11 could modulate the JAK1 expression via targeting miR-224-3p. The inhibitory effect of HCG11 silencing on cell pyroptosis and inflammation was reversed by miR-224-3p knockdown. Furthermore, overexpression of miR-224-3p could repress the ox-LDL-induced cell pyroptosis and inflammation via regulating JAK1 expression. Knockdown of HCG11 alleviated cell pyroptosis and inflammation induced by ox-LDL via targeting the miR-224-3p/JAK1 axis, indicating that HCG11 could be the latent target of diagnosis or treatment for AS.
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