Host cell receptor

Host cell receptors are a broad, heterogeneous group of molecules on or in cells that mediate cellular recognition and response to external ligands, including pathogens, drugs, hormones, and other signaling molecules. They are central to physiological functions such as signal transduction, immune recognition, and cell communication. In the context of infection, viruses and other pathogens exploit specific host cell receptors for attachment, entry, and propagation. The molecular diversity of host cell receptors underpins their widespread roles in health and disease, making them critical therapeutic targets for a range of diseases, especially infectious and immune-mediated conditions. Because "host cell receptors" encompasses numerous, distinct molecular entities, further specification (e.g., by receptor name such as "ACE2," "CD4," "TLR4") is required for precise scientific or clinical discussion.

Other names

Cellular receptorvirus entry receptorattachment receptorcell-surface receptormembrane receptorentry factor

Competitive inhibition of ligand/receptor interaction; Blockade of virus-receptor binding; Modulation of immune signaling via receptor antagonism/agonism; Receptor internalization or downregulation.