Fibroblasts alter the physical properties of dermal ECM-derived hydrogels to create a pro-angiogenic microenvironment.

Mater Today Bio

University of Groningen, University Medical Centre Groningen, Department of Pathology and Medical Biology, Hanzeplein 1 (EA11), 9713, GZ Groningen, the Netherlands.

Published: December 2023


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Article Abstract

This study aimed to investigate the impact of fibroblasts (MRC-5) on the extracellular matrix (ECM) microenvironment of endothelial cells (ECs) during the vascularization of skin-derived ECM hydrogel in vitro. Two types of ECs were studied: human dermal microvascular endothelial cells (HMEC) and human pulmonary microvascular endothelial cells (HPMEC). Results showed that the presence of MRC-5 fibroblasts increased the stiffness of the hydrogel and led to larger fiber diameters and increased porosity. Extensive collagen fiber remodeling occurred in the ECM hydrogel with MRC-5 fibroblasts. Additionally, higher levels of fibulin-1 and fibronectin were deposited in the hydrogel when co-cultured with MRC-5 fibroblasts. These findings suggest that MRC-5 fibroblasts play a role in modifying the ECM microenvironment, promoting vascularization through dynamic ECM remodeling.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10628774PMC
http://dx.doi.org/10.1016/j.mtbio.2023.100842DOI Listing

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