Description
Cytochalasin A is a mycotoxin actin polymerization inhibitor initially produced by species of Aspergillus. Cytochalasin A inhibits platelet-mediated adhesion of tumor cells to the endothelial matrix, displaying potential anticancer benefit. Cytochalasin A also inhibits Kv1.5 K+ channels in vitro. This compound’s disruption of actin polymerization also prevents phagocytosis in macrophages.
References
Choi BH, Park JA, Kim KR, et al. Direct block of cloned hKv1.5 channel by cytochalasins, actin-disrupting agents. Am J Physiol Cell Physiol. 2005 Aug;289(2):C425-36. PMID: 15800051.
Menter DG, Sloane BF, Steinert BW, et al. Platelet enhancement of tumor cell adhesion to subendothelial matrix: role of platelet cytoskeleton and platelet membrane. J Natl Cancer Inst. 1987 Nov;79(5):1077-90. PMID: 3479634.