Tumor cell surface receptors and associated glycoproteins

Tumor cell surface receptors and associated glycoproteins represent a broad and heterogeneous category of proteins and conjugated carbohydrates expressed on the plasma membrane of malignant cells. These molecules serve critical roles in the oncogenic process, including the mediation of growth factor signaling, cell-to-cell adhesion, and the modulation of the tumor microenvironment to facilitate immune evasion. While many of these proteins are also found on normal cells, they are often overexpressed, mutated, or aberrantly glycosylated in cancer, making them primary targets for therapeutic intervention. Common examples within this category include the epidermal growth factor receptor (EGFR) family, various mucins like MUC1, and specific glycoproteins such as TAG-72. Because this term describes a diverse class of molecules rather than a single biological entity, it is generally considered a functional grouping used in oncology research rather than a specific therapeutic target.

Other names

Tumor-associated antigensCancer cell surface markersTumor-specific antigensTumor-associated glycoproteins

Various mechanisms including signal inhibition, antibody-dependent cellular cytotoxicity (ADCC), and drug delivery via conjugation.