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Wang L, Wang L, Zhou Z, Wang YJ, Huang JP, Ma YT, Liu Y, Huang SX. Cangumycins A-F, six new angucyclinone analogues with immunosuppressive activity from Streptomyces. Chin J Nat Med 2019; 17:982-987. [PMID: 31882054 DOI: 10.1016/s1875-5364(19)30121-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Indexed: 10/25/2022]
Abstract
Cangumycins A-F (1-6), six new angucyclinone analogues, together with two known ones (7 and 8), were isolated from the fermentation broth of a soil-derived Streptomyces sp. KIB-M10. Structures of these compounds were elucidated via a joint use of spectroscopic analyses and single-crystal X-ray diffractions. Among them, cangumycins E (5) and F (6) share a C-ring cleaved backbone, and cangumycins B (2) and E (5) exhibit potent immunosuppressive activity (IC50 8.1 and 2.7 μmol·L-1, respectively) against human T cell proliferation at a non-cytotoxic concentration.
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Affiliation(s)
- Lei Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; College of Chemistry and Pharmacy, Northwest Agriculture and Forestry University, Yangling 712100, China
| | - Li Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Research Center, Chengdu Medical College, Chengdu 610500, China; Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong-Jiang Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Savaid Medical School, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian-Ping Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ya-Tuan Ma
- College of Chemistry and Pharmacy, Northwest Agriculture and Forestry University, Yangling 712100, China
| | - Yang Liu
- Research Center, Chengdu Medical College, Chengdu 610500, China
| | - Sheng-Xiong Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
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