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XIST Promotes Apoptosis and the Inflammatory Response in CSE-stimulated Cells Via the MiR-200c-3p/EGR3 Axis

Overview
Journal BMC Pulm Med
Publisher Biomed Central
Specialty Pulmonary Medicine
Date 2021 Jul 10
PMID 34243729
Citations 18
Authors
Affiliations
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Abstract

Background: Chronic obstructive pulmonary disease (COPD) is a disease that causes obstructed airways and abnormal inflammatory responses in the lungs. Early growth response 3 (EGR3) has been revealed to play a vital role in the regulation of the inflammatory response in certain diseases. We aimed to explore the role of EGR3 and its upstream mechanism in COPD.

Methods And Result: In the present study, 16HBE cells were treated with cigarette smoke extract (CSE) to mimic the inflammatory response in vitro. RT-qPCR revealed that the expression of EGR3 was upregulated in lungs from COPD patients. EGR3 expression in 16HBE cells was increased by CSE treatment. Moreover, flow cytometry analysis and western blot analysis showed that EGR3 downregulation inhibited 16HBE cell apoptosis. EGR3 silencing decreased the protein levels of IL-6, TNF-α, IL-1β and COX2 in CSE-stimulated 16HBE cells. In addition, EGR3 was targeted by microRNA-200c-3p (miR-200c-3p) in 16HBE cells. MiR-200c-3p expression was significantly decreased in lung tissues from COPD patients compared to that in healthy controls. Furthermore, miR-200c-3p bound to lncRNA X-inactive specific transcript (XIST) in 16HBE cells. Additionally, XIST expression was elevated in lung tissues from COPD patients. Rescue assays indicated that EGR3 overexpression counteracted the effects of XIST downregulation on apoptosis and inflammation in CSE-stimulated 16HBE cells.

Conclusion: The XIST/miR-200c-3p/EGR3 axis facilitated apoptosis and inflammation in CSE-stimulated 16HBE cells. These findings may provide novel insight for treating COPD by alleviating lung inflammation.

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References
1.
Wang Z, Qu F, Chen Y, Ran Z, Liu H, Zhang H . Involvement of microRNA-718, a new regulator of EGR3, in regulation of malignant phenotype of HCC cells. J Zhejiang Univ Sci B. 2017; 18(1):27-36. PMC: 5260475. DOI: 10.1631/jzus.B1600205. View

2.
Ma M, Pei Y, Wang X, Feng J, Zhang Y, Gao M . LncRNA XIST mediates bovine mammary epithelial cell inflammatory response via NF-κB/NLRP3 inflammasome pathway. Cell Prolif. 2018; 52(1):e12525. PMC: 6430464. DOI: 10.1111/cpr.12525. View

3.
Zhang M, Wang F, Xiang Z, Huang T, Zhou W . LncRNA XIST promotes chemoresistance of breast cancer cells to doxorubicin by sponging miR-200c-3p to upregulate ANLN. Clin Exp Pharmacol Physiol. 2020; 47(8):1464-1472. DOI: 10.1111/1440-1681.13307. View

4.
Chung K, Adcock I . Multifaceted mechanisms in COPD: inflammation, immunity, and tissue repair and destruction. Eur Respir J. 2008; 31(6):1334-56. DOI: 10.1183/09031936.00018908. View

5.
Chien M, Lee W, Yang Y, Li Y, Chen B, Cheng T . KSRP suppresses cell invasion and metastasis through miR-23a-mediated EGR3 mRNA degradation in non-small cell lung cancer. Biochim Biophys Acta Gene Regul Mech. 2017; 1860(10):1013-1024. DOI: 10.1016/j.bbagrm.2017.08.005. View