Microbial lipid membranes (Bacterial, fungal cell membranes and viral envelopes)

Microbial lipid membranes, encompassing bacterial and fungal cell membranes as well as viral envelopes, are essential lipid bilayers that maintain the structural integrity and physiological homeostasis of pathogens. In bacteria, these membranes are targeted by lipopeptides and polymyxins which cause membrane depolarization or physical disruption, leading to cytoplasmic leakage and cell death (Source: StatPearls). Fungal membranes are uniquely characterized by ergosterol, a sterol targeted by polyene antimycotics like amphotericin B to form transmembrane pores (Source: NCBI). Viral envelopes, acquired from host cell membranes during budding, are critical for protecting the viral genome and facilitating entry into new host cells via fusion (Source: Cold Spring Harbor Perspectives in Biology). These targets are fundamental to pathogen survival, and their disruption is a primary mechanism for several classes of potent anti-infective agents. However, the similarity between certain microbial lipids and human cell membrane components can lead to significant off-target toxicities, such as nephrotoxicity and hemolysis (Source: Journal of Cellular Physiology). Overall, these membranes represent a diverse but vital class of therapeutic targets in the treatment of infectious diseases.

Other names

Bacterial cell membraneFungal plasma membraneViral envelopePathogen lipid bilayerMicrobial cell envelope

Pore formation, membrane depolarization, disruption of lipid bilayer integrity, and inhibition of viral-host membrane fusion