Precursor-directed biosynthesis was used to generate a series of fluorinated verticillins. The biosynthesis of these epipolythiodioxopiperazine alkaloids was monitored via the droplet liquid microjunction surface sampling probe (droplet probe), and a suite of NMR and mass spectrometry data were used for their characterization. All analogues demonstrated nanomolar IC values vs a panel of cancer cell lines. This approach yielded new compounds that would be difficult to generate via synthesis.
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http://dx.doi.org/10.1021/acs.jnatprod.9b00711 | DOI Listing |
Nat Prod Rep
September 2024
Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, P.O. Box 26170, Greensboro, North Carolina 27402, USA.
Covering: 1970 through June of 2023Verticillins are epipolythiodioxopiperazine (ETP) alkaloids, many of which possess potent, nanomolar-level cytotoxicity against a variety of cancer cell lines. Over the last decade, their activity and mode of action have been explored in detail. Notably, recent studies have indicated that these compounds may be selective inhibitors of histone methyltransferases (HMTases) that alter the epigenome and modify targets that play a crucial role in apoptosis, altering immune cell recognition, and generating reactive oxygen species.
View Article and Find Full Text PDFBiomolecules
July 2023
School of Life Sciences, Shandong University, Qingdao 266237, China.
Bioorg Chem
October 2023
Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji-Rongcheng Center for Biomedicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China. Electronic address:
The most studied epipolythiodioxopiperazine (ETP) alkaloids, such as chetomin, gliotoxin and chaetocin, were reported to exert their antitumor effects through targeting HIF-1α. Chaetocochin J (CJ) is another ETP alkaloid, of which the effect and mechanism on cancer are not fully elucidated. Considering the high incidence and mortality of hepatocellular carcinoma (HCC) in China, in the present study, using HCC cell lines and tumor-bearing mice as models, we explored the anti-HCC effect and mechanism of CJ.
View Article and Find Full Text PDFBioorg Chem
August 2023
School of Pharmacy, China Medical University, Shenyang 110122, China. Electronic address:
Mol Pharm
June 2023
Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois 60607, United States.
Verticillins are epipolythiodioxopiperazine alkaloids isolated from a fungus with nanomolar anti-tumor activity in high-grade serous ovarian cancer (HGSOC). HGSOC is the fifth leading cause of death in women, and natural products continue to be an inspiration for new drug entities to help tackle chemoresistance. Verticillin D was recently found in a new fungal strain and compared to verticillin A.
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