Intercellular communication via transfer of proteins, lipids, and nucleic acids

Intercellular communication via transfer of proteins, lipids, and nucleic acids" refers to a broad set of biological processes by which cells exchange macromolecules to coordinate function and behavior. This can occur through several mechanisms including tunneling nanotubes (TNTs), gap junctions, exosomes/vesicles, trogocytosis, cell fusion, and intercellular bridges. These mechanisms allow for the direct or indirect movement of membrane-associated proteins (such as MHC molecules), signaling lipids, RNA/DNA fragments, and other cellular components between cells. Such exchanges are critical in immune responses—where antigen-presenting cells may share antigens with T-cells—as well as in cancer progression where tumor cells communicate with their microenvironment. The phenomenon is not limited to one protein or receptor but encompasses multiple pathways involving various families such as connexins for gap junctions or M-Sec for TNT formation[1][3][4]. Because this entry describes a general process rather than a specific molecular entity or druggable target (e.g., receptor/enzyme), it does not fit the definition of a canonical therapeutic target. Key points supporting "is_incorrect": This entry describes an entire class of cellular processes rather than an individual molecule/receptor/protein that could be directly targeted by drugs. It lacks specificity required for structured drug-target information; thus it should be flagged as incorrect in this context[1][3].

Other names

Intercellular communicationIntercellular transfer of proteins, lipids, and nucleic acidsCell-to-cell communication via macromolecule transfer