chaetoglobosin a

Chaetoglobosin A, the active compound extracted of Penicillium aquamarinium, is a member of the cytochalasan family. It preferentially induces apoptosis.

19-O-Acetylchaetoglobosin A is a fungal metabolite originally isolated fromC. globosumthat has actin polymerization inhibitory and cytotoxic activities.1,2It inhibits actin polymerization in a cell-free assay when used at a concentration of 2 μM.219-O-Acetylchaetoglobosin A (3.2, 10, and 32 μg/ml) is cytotoxic to HeLa cervical cancer cells.1 1.Umeda, M., Ohtsubo, K., Saito, M., et al.Cytotoxicity of new cytochalasans from Chaetomium globosumExperientia31(4)435-438(1975) 2.Sekita, S., Yoshihira, K., Natori, S., et al.Structure-activity relationship of thirty-nine cytochalasans observed in the effects on cellular structures and cellular events and on actin polymerization in vitroJ. Pharmacobiodyn.8(11)906-916(1985)

Chaetoglobosin E is a ferroptosis inducer exhibiting significant cytotoxicity against the human tumor cell lines MDA-MB231 and A549, with IC50 values of 9.14 μM and 7.47 μM, respectively. It induces ferroptosis by downregulating GPX4 expression in A549 cells, leading to increased intracellular levels of Fe2+ (iron ions) and the lipid peroxidation product malondialdehyde (MDA), resulting in mitochondrial shrinkage and reduced or absent cristae. Chaetoglobosin E is applicable in cancer research.

Chaetoglobosin F is a cytochalasin-type alkaloid derived from Chaetomium globosum. It exhibits cytotoxic properties against human nasopharyngeal epidermoid carcinoma cells (KB), with an IC50 value of 52.0 µM.

chaetoglobosin Vb is a new cytochalasan alkaloid isolated from endophytic Chaetomium globosum