Abstract
Increased matrix stiffness is a common phenomenon in solid tumor tissue and is regulated by both tumor and mesenchymal cells. The increase in collagen and lysyl oxidase family proteins in the extracellular matrix leads to deposition, contraction, and crosslinking of the stroma, promoting increased matrix stiffness in tumors. Matrix stiffness is critical to the progression of various solid tumors. As a mechanical factor in the tumor microenvironment, matrix stiffness is involved in tumor progression, promoting biological processes such as tumor cell proliferation, invasion, metastasis, angiogenesis, drug resistance, and immune escape. Reducing tissue stiffness can slow down tumor progression. Therefore targeting matrix stiffness is a potential option for tumor therapy. This article reviews the detailed mechanisms of matrix stiffness in different malignant tumor phenotypes and potential tumor therapies targeting matrix stiffness. Understanding the role and mechanisms of matrix stiffness in tumors could provide theoretical insights into the treatment of tumors and assist in the clinical development of new drug therapies.