Cellular membrane integrity maintenance

Cellular membrane integrity maintenance is a fundamental biological process that ensures the physical continuity and selective permeability of the plasma membrane, separating the intracellular environment from the extracellular space. It is not a single molecular target but rather a complex physiological function mediated by lipids and specialized proteins such as dysferlin and annexins, which facilitate the rapid repair of membrane lesions (Bansal et al., 2003; McNeil & Kirchhausen, 2005). In therapeutic development, this process is addressed through two primary strategies: stabilization and disruption. Membrane-stabilizing agents like Poloxamer 188 are investigated for treating conditions involving membrane fragility, such as muscular dystrophy and ischemia-reperfusion injury, by acting as a synthetic sealant for damaged bilayers (Moloney et al., 2012). Conversely, several classes of antibiotics, including lipopeptides like daptomycin and polymyxins, exert their bactericidal effects by directly disrupting the membrane integrity of target pathogens (Heidary et al., 2014). Monitoring this process is vital in clinical settings, often utilizing biomarkers like lactate dehydrogenase (LDH) or creatine kinase (CK) to assess the extent of cellular damage (Chan et al., 2013).

Other names

Membrane integrityPlasma membrane repairMembrane stabilityCellular membrane maintenance

Therapeutic intervention involves either the stabilization of the lipid bilayer via surfactants like Poloxamer 188 or the targeted disruption of membrane potential and permeability in pathogens using lipopeptides or polymyxins (Heidary et al., 2014; Moloney et al., 2012).