Planta Med 2022; 88(08): 678-684
DOI: 10.1055/a-1530-1128
Biological and Pharmacological Activity
Original Papers

Two New Cytotoxic Maytansinoids Targeting Tubulin from Trewia nudiflora

Chun Lei
1   School of Pharmacy, Fudan University, Shanghai, China
,
Ya-Nan Li
1   School of Pharmacy, Fudan University, Shanghai, China
,
Jia-Nan Li
2   National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
4   University of Chinese Academy of Sciences, Beijing, China
5   School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
,
Yu-Bo Zhou
2   National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
4   University of Chinese Academy of Sciences, Beijing, China
5   School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
,
Ming-Jun Cui
3   Puer Institute of Traditional Ethnomedicine, Yunnan, China
,
Kai-Cong Fu
3   Puer Institute of Traditional Ethnomedicine, Yunnan, China
,
Jia Li
2   National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
4   University of Chinese Academy of Sciences, Beijing, China
5   School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
,
Ai-Jun Hou
1   School of Pharmacy, Fudan University, Shanghai, China
› Author Affiliations
Supported by: Shanghai Commission of Science and Technology 19495800800
Supported by: National Natural Science Foundation of China 21672040
Supported by: National Natural Science Foundation of China 82073717

Abstract

Two new maytansinoids, N-methyltreflorine (1) and methyltrewiasine (2), were isolated from the dried fruits of Trewia nudiflora, together with three known congeners (3 – 5). Their structures were elucidated by spectroscopic methods, and the absolute configuration of 1 and 2 was determined by X-ray crystallographic analysis. Compounds 1 – 5 exhibited strong cytotoxicity against human tumor cell lines, including HeLa, MV-4 – 11, and MCF-7, with IC50 values ranging from 0.12 to 11 nM. Compounds 1 and 4 also showed inhibitory activity against the MCF-7/ADR cell line with IC50 values of 13 and 28 nM, respectively. Compounds 1 and 2 significantly inhibited tubulin polymerization in vitro with IC50 values of 3.6 and 3.2 µM, respectively.

Supporting Information



Publication History

Received: 21 February 2021

Accepted after revision: 02 June 2021

Article published online:
29 October 2021

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