Fibrin-collagen I matrix interface

The fibrin-collagen I matrix interface is a specialized extracellular matrix (ECM) structure formed by the specific binding of fibrin (or its precursor fibrinogen) to Type I collagen fibers. This interface serves as a critical bridge or linkage that connects cells, particularly those expressing alpha-V beta-3 (αVβ3) integrins, to the structural collagen network, enabling cell-mediated contraction and migration within provisional matrices [1, 6]. Biologically, it plays a pivotal role in the early stages of wound healing, inflammation, and tissue repair by providing a functional scaffold for fibroblasts and endothelial cells [1, 7, 10]. In pathological states, such as fibrosis or cancer, the persistence or dysregulation of this interface can contribute to excessive tissue stiffening and disease progression [1, 3, 4]. Therapeutic interest focuses on modulating this interaction to control tissue contraction and scarring, with research tools like the streptococcal protein CNE demonstrating the ability to competitively inhibit the interface and prevent matrix remodeling [1, 8].

Other names

Fibrin-collagen interaction siteFibrin-collagen linkageFibrin-collagen composite matrixFibrin-collagen bridgeFibrin-collagen functional interface matrix

Competitive inhibition of the collagen-binding site for fibrinogen; enzymatic cross-linking of fibrin to collagen fibers via Factor XIIIa; providing a structural bridge for alpha-V beta-3 (αVβ3) integrin-mediated cell contraction.