Tumor necrosis factor alpha-induced adhesion molecule expression (TNFα-induced adhesion molecule expression) (TNFα-induced adhesion molecule expression)

TNFα-induced adhesion molecule expression is a biological process where the pro-inflammatory cytokine Tumor Necrosis Factor alpha (TNFα) stimulates the upregulation of cell surface proteins, specifically Intercellular Adhesion Molecule-1 (ICAM-1), Vascular Cell Adhesion Molecule-1 (VCAM-1), and E-selectin (Pober, 2002, PubMed: 12110465). This induction is primarily mediated through the activation of the NF-κB signaling pathway following TNFα binding to its receptors, TNFR1 and TNFR2 (Collins et al., 1995, PubMed: 7530658). These adhesion molecules are critical for the recruitment, tethering, and transmigration of leukocytes from the bloodstream into tissues during an inflammatory response (Muller, 2003, PubMed: 12810608). Pathological over-expression of these molecules is a hallmark of chronic inflammatory conditions, including rheumatoid arthritis, psoriasis, and atherosclerosis (Blankenberg et al., 2003, PubMed: 12761155). Therapeutic strategies often focus on neutralizing TNFα itself using monoclonal antibodies or decoy receptors to reduce adhesion molecule expression and subsequent tissue damage (Taylor, 2001, PubMed: 11513931). Additionally, small molecules that inhibit the downstream signaling pathways, such as NF-κB inhibitors, are used to modulate this response (Ulbrich et al., 2003, PubMed: 12691668).

Other names

TNF-alpha-induced cell adhesion molecule expressionCytokine-induced endothelial activationTNF-mediated upregulation of ICAM-1, VCAM-1, and E-selectin

Neutralization of TNFα to prevent receptor binding and subsequent signaling, or inhibition of NF-κB activation to prevent transcriptional upregulation of adhesion molecule genes (Taylor, 2001, PubMed: 11513931; Ulbrich et al., 2003, PubMed: 12691668).