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Review
.2024 Feb:171:116116.
doi: 10.1016/j.biopha.2023.116116. Epub 2024 Jan 5.

The role of matrix metalloproteinase 9 in fibrosis diseases and its molecular mechanisms

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Free article
Review

The role of matrix metalloproteinase 9 in fibrosis diseases and its molecular mechanisms

Yuling Wang et al. Biomed Pharmacother.2024 Feb.
Free article

Abstract

Fibrosis is a process of tissue repair that results in the slow creation of scar tissue to replace healthy tissue and can affect any tissue or organ. Its primary feature is the massive deposition of extracellular matrix (mainly collagen), eventually leading to tissue dysfunction and organ failure. The progression of fibrotic diseases has put a significant strain on global health and the economy, and as a result, there is an urgent need to find some new therapies. Previous studies have identified that inflammation, oxidative stress, some cytokines, and remodeling play a crucial role in fibrotic diseases and are essential avenues for treating fibrotic diseases. Among them, matrix metalloproteinases (MMPs) are considered the main targets for the treatment of fibrotic diseases since they are the primary driver involved in ECM degradation, and tissue inhibitors of metalloproteinases (TIMPs) are natural endogenous inhibitors of MMPs. Through previous studies, we found that MMP-9 is an essential target for treating fibrotic diseases. However, it is worth noting that MMP-9 plays a bidirectional regulatory role in different fibrotic diseases or different stages of the same fibrotic disease. Previously identified MMP-9 inhibitors, such as pirfenidone and nintedanib, suffer from some rather pronounced side effects, and therefore, there is an urgent need to investigate new drugs. In this review, we explore the mechanism of action and signaling pathways of MMP-9 in different tissues and organs, hoping to provide some ideas for developing safer and more effective biologics.

Keywords: Antifibrosis; Fibrosis; Matrix metalloproteinase-9; Signal pathway.

Copyright © 2024 The Authors. Published by Elsevier Masson SAS.. All rights reserved.

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Conflict of interest statement

Declaration of Competing Interest The authors declare that they have no known competing conflicts of interest or personal relationships that could have appeared to influence the work reported in this paper.

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