Host tissue extracellular matrix and cell adhesion receptors (ECM-CAR)

Host tissue extracellular matrix (ECM) and cell adhesion receptors represent a broad and heterogeneous class of molecules essential for maintaining tissue integrity and mediating communication between cells and their environment. The ECM is a complex network of macromolecules, including collagen, proteoglycans, and glycoproteins, while cell adhesion receptors such as integrins, cadherins, and selectins facilitate the physical attachment and signaling between cells or between a cell and the ECM. These interactions are critical for physiological processes like embryonic development, immune cell trafficking, and wound repair. In various diseases, these systems are dysregulated; for instance, cancer cells exploit adhesion receptors to migrate and metastasize, while chronic inflammation often involves the over-recruitment of leukocytes via adhesion molecules. Therapeutic strategies targeting this group often focus on specific receptors, such as integrins, to treat conditions ranging from autoimmune diseases and thrombosis to various forms of cancer. Because this term describes a broad category rather than a single molecular entity, it is often considered a functional grouping in pharmacological contexts.

Other names

Extracellular matrix proteinsCell adhesion moleculesECM receptorsAdhesion receptors

Drugs targeting these components typically act as antagonists or monoclonal antibodies that block the interaction between cell surface receptors (like integrins) and their ligands in the extracellular matrix or on other cells, thereby inhibiting cell adhesion, migration, and downstream signaling pathways.