Extracellular matrix proteins and cell membranes

The extracellular matrix (ECM) and cell membranes represent the essential structural and functional boundaries of cells and tissues. The ECM is a complex, non-cellular network composed of proteins such as collagen, elastin, and laminin, which provide physical support and biochemical signals that regulate cell behavior [1]. Cell membranes are semi-permeable lipid bilayers embedded with proteins that facilitate communication between the intracellular environment and the ECM [2]. In many diseases, including cancer and various fibrotic conditions, the ECM undergoes significant remodeling, which can promote tumor metastasis or organ dysfunction [3]. While not a single therapeutic target, specific components within the ECM and cell membranes are targeted by drugs to treat conditions ranging from Dupuytren's contracture to autoimmune diseases [4]. For instance, collagenase enzymes are used to degrade excessive collagen deposits, while integrin inhibitors block the receptors that link cells to the matrix [5]. Understanding the interplay between these structural elements is crucial for developing therapies that modify the tissue microenvironment or improve drug delivery [6].

Other names

Extracellular matrixECMCell membranePlasma membraneIntercellular matrix

Enzymatic degradation of structural proteins, competitive inhibition of cell-surface adhesion receptors, and disruption of membrane permeability or structural integrity.