Host cell membranes and extracellular matrix components

Host cell membranes and the extracellular matrix (ECM) represent the fundamental structural and functional boundaries of animal tissues. The host cell membrane is a semi-permeable lipid bilayer that regulates molecular transport and hosts receptors for signal transduction, while the ECM is a complex network of proteins and carbohydrates providing physical scaffolding and biochemical cues to cells (Source: NIH/NCBI). In disease states, these components are often hijacked; for instance, pathogens utilize membrane receptors for entry, and cancer cells remodel the ECM to facilitate metastasis and evade the immune system (Source: Nature Reviews Cancer). Pharmacological intervention targeting these structures includes membrane-disrupting agents like polymyxins and ECM-modifying enzymes like collagenase, though such approaches face challenges regarding specificity and systemic toxicity (Source: PubChem, StatPearls).

Other names

Cellular membranesPlasma membranesExtracellular matrixECMInterstitial matrixBasement membrane

Drugs targeting these components typically act by disrupting membrane integrity, inhibiting cell-surface receptor interactions, or enzymatically degrading structural proteins to alter tissue permeability and signaling (Source: PubChem, StatPearls).