有机化学 ›› 2022, Vol. 42 ›› Issue (4): 1241-1247.DOI: 10.6023/cjoc202111018 上一篇    下一篇

研究简报

链霉菌CB03234-S中天赐霉素衍生物的发现

薛露a,b, 张丽花a,b, 张成玉a, 赵鑫a, 党伟帆a, 王昭昕a,b, 王春华c, 所同川c, 颜晓晖a,b,*()   

  1. a 天津中医药大学中医药研究院 天津 301617
    b 北京大学天然药物及仿生药物国家重点实验室 北京 100191
    c 天津中医药大学中药制药工程学院 天津 301617
  • 收稿日期:2021-11-10 修回日期:2021-12-09 发布日期:2021-12-30
  • 通讯作者: 颜晓晖
  • 基金资助:
    国家自然科学基金(81872779); 天然药物及仿生药物国家重点实验室开放基金(K202116)

Discovery of Tiancimycin Congeners from Streptomyces sp. CB03234-S

Lu Xuea,b, Lihua Zhanga,b, Chengyu Zhanga, Xin Zhaoa, Weifan Danga, Zhaoxin Wanga,b, Chunhua Wangc, Tongchuan Suoc, Xiaohui Yana,b()   

  1. a Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617
    b State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191
    c College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617
  • Received:2021-11-10 Revised:2021-12-09 Published:2021-12-30
  • Contact: Xiaohui Yan
  • Supported by:
    National Science Foundation of China(81872779); State Key Laboratory of Natural and Biomimetic Drugs(K202116)

天赐霉素是一种蒽醌骈合型烯二炔类化合物, 具有显著的抗肿瘤活性. 通过在天赐霉素A高产菌株放线菌CB03234-S中异源表达两个细胞色素P450羟化酶基因dynE10dynOrf19, 分离得到三个天赐霉素衍生物1~3. 通过一维和二维核磁共振、高分辨质谱和圆二色谱测定了它们的化学结构. 天赐霉素H (1)为天赐霉素D的C-9羟基化产物, TNM T1 (2)为一个烯二炔的环化产物, TNM T3 (3)为已知化合物. 化合物1对所有四种测试的肿瘤细胞株, 如HeLa细胞、MB49细胞、B16细胞和BIU87细胞均具有较强的抗肿瘤活性.

关键词: 天赐霉素, 蒽醌骈合型烯二炔, 细胞色素P450羟化酶, 抗肿瘤活性, 异源表达

Tiancimycins (TNMs) are anthraquinone-fused enediynes with phenomenal antitumor activity. By heterologous expression of two cytochrome P450 hydroxylase genes, dynE10 and dynOrf19, in the TNMs high-producing strain Streptomyces sp. CB03234-S, three TNM derivatives 1~3 were isolated. Their chemical structures were determined by one-dimensional and two-dimensional NMR, high resolution mass spectrometry and circular dichroism. TNM H (1) is the C-9-hydroxylated product of TNM D, TNM T1 (2) is a cycloaromatized product, and TNM T3 (3) is a known compound. Compound 1 exhibited strong antitumor activity against the four tested cancer cell lines, including HeLa, MB49, B16 and BIU87.

Key words: tiancimycins, anthraquinone-fused enediyne, cytochrome P450 hydroxylase, antitumor activity, heterologous expression