illudin S

Illudins are fungal sesquiterpenes that, through their unique DNA alkylating actions, have anticancer potential. Illudin S is a cytotoxic illudin that is converted, intracellularly, to metabolites that cause a complete block of cell cycling at the G₁-S phase interface, particularly in myeloid and T-lymphocyte leukemia cells (IC₅₀ = 6-11 nM). T-lymphocyte leukemia CEM cells that are resistant to doxorubicin , epipodophyllotoxins, and 1-β-D-arabinofuranosylcytosine display only 2-fold increased resistance to illudin S. Illudin S metabolites induce DNA damage that is not repaired by the processes that counter conventional DNA alkylating agents.

Illudin S is potent antitumor sesquiterpene, first isolated from the fungus, Clitocybe illudens, in 1963. Illudin S is metabolically activated to reactive intermediates that bind DNA. The DNA damage appears to differ from that of other reactive metabolites. Importantly, illudin S exhibits in vitro and in vivo potency against multi-drug resistant tumours.

Illudin S is a potent antitumor sesquiterpene.

ChEBI: Illudin S is a sesquiterpenoid.

[1] De Souza, F.I., Zumiotti, A.V., and Da Silva, C.F. Neuregulins 1-α and 1-β on the regeneration the peripheral nerves[J]. Acta Ortop Bras.
[2] NICOLAAS G.J JASPERS . Anti-tumour compounds illudin S and Irofulven induce DNA lesions ignored by global repair and exclusively processed by transcription- and replication-coupled repair pathways[J]. DNA Repair, 2002, 1 12: Pages 1027-1038. DOI: 10.1016/s1568-7864(02)00166-0