Tumor cell surface attachment factors

Tumor cell surface attachment factors comprise a diverse class of proteins and glycans, such as integrins, cadherins, and selectins, that facilitate the adherence of malignant cells to the extracellular matrix (ECM) and neighboring cells (Source: Nature Reviews Cancer). These molecules are essential for the structural integrity of the tumor mass and play a pivotal role in the metastatic process by enabling cell detachment, intravasation, and subsequent colonization of distant organs (Source: Journal of Cell Biology). In addition to their mechanical roles, these factors act as transmembrane transducers that activate intracellular signaling pathways, including the PI3K/Akt and MAPK pathways, which drive tumor cell proliferation and resistance to apoptosis (Source: PubMed). Therapeutic strategies targeting these factors often involve monoclonal antibodies or small molecule inhibitors designed to block ligand binding, thereby disrupting the pro-tumorigenic signals and physical anchors of the cancer cell (Source: NIH). However, the ubiquitous expression of many attachment factors on normal cells for physiological processes like wound healing and immune cell trafficking poses a significant challenge for the therapeutic index (Source: StatPearls).

Other names

Cell adhesion moleculesCAMsTumor adhesion receptorsExtracellular matrix receptorsSurface attachment proteinsAdhesion G protein-coupled receptors

Inhibition of cell-extracellular matrix (ECM) or cell-cell adhesion by competitively blocking ligand-binding sites on surface receptors, thereby preventing tumor cell migration, invasion, and survival signaling.