Antitumor Agents. 272. Structure−Activity Relationships and In Vivo Selective Anti-Breast Cancer Activity of Novel Neo-tanshinlactone Analogues
摘要:
Neo-tanshinlactone (1) and its previously reported analogues, such as 2, are potent and selective in vitro antibreast cancer agents. The synthetic pathway to 2 was optimized from seven to five steps, with a better overall yield. Structure-activity relationships studies on these compounds revealed some key molecular determinants for this family of antibreast agents. Several derivatives (19-21 and 24) exerted potent and selective antibreast cancer activity with IC50 values of 0.3, 0.2, 0.1, and 0.1 mu g/mL, respectively, against the ZR-75-1 cell lines. Compound 24 was 2- to 3-fold more potent than I against SK-BR-3 and ZR-75-1. Importantly, 21 exhibited high selectivity; it was 23 times more active against ZR-75-1 than MCF-7. Compound 20 had an approximately 12-fold ratio of SK-BR-3/MCF-7 selectivity. In addition, analogue 2 showed potent activity against it ZR-75-1 xenograft model, but not PC-3 and MDA-MB-231 xenografts, as well as high selectivity against breast cancer cell line compared with normal breast tissue-derived cell lines. Further development of lead compounds 19-21 and 24 as clinical trial candidates is warranted.
Antitumor Agents. 272. Structure−Activity Relationships and In Vivo Selective Anti-Breast Cancer Activity of Novel Neo-tanshinlactone Analogues
摘要:
Neo-tanshinlactone (1) and its previously reported analogues, such as 2, are potent and selective in vitro antibreast cancer agents. The synthetic pathway to 2 was optimized from seven to five steps, with a better overall yield. Structure-activity relationships studies on these compounds revealed some key molecular determinants for this family of antibreast agents. Several derivatives (19-21 and 24) exerted potent and selective antibreast cancer activity with IC50 values of 0.3, 0.2, 0.1, and 0.1 mu g/mL, respectively, against the ZR-75-1 cell lines. Compound 24 was 2- to 3-fold more potent than I against SK-BR-3 and ZR-75-1. Importantly, 21 exhibited high selectivity; it was 23 times more active against ZR-75-1 than MCF-7. Compound 20 had an approximately 12-fold ratio of SK-BR-3/MCF-7 selectivity. In addition, analogue 2 showed potent activity against it ZR-75-1 xenograft model, but not PC-3 and MDA-MB-231 xenografts, as well as high selectivity against breast cancer cell line compared with normal breast tissue-derived cell lines. Further development of lead compounds 19-21 and 24 as clinical trial candidates is warranted.
Antitumor Agents. 266. Design, Synthesis, and Biological Evaluation of Novel 2-(Furan-2-yl)naphthalen-1-ol Derivatives as Potent and Selective Antibreast Cancer Agents
作者:Yizhou Dong、Qian Shi、Yi-Nan Liu、Xiang Wang、Kenneth F. Bastow、Kuo-Hsiung Lee
DOI:10.1021/jm9001567
日期:2009.6.11
In a continuing study, we explored how the individual rings in neo-tanshinlactone (1) influence its potent and selective in vitro antibreast cancer activity. Accordingly, we discovered a novel class of antibreast cancer agents, 2-(furan-2-yl)naphthalen-1-ol derivatives, based on an active C-ring opened model compound S. Further optimization led to 18 and 21, which showed decreased cytotoxic potency but better selectivity than neo-tanshinlactone analogue 2. Interestingly, 20 showed broad cytotoxicity against human cancer cell lines.
Antitumor Agents. 272. Structure−Activity Relationships and In Vivo Selective Anti-Breast Cancer Activity of Novel Neo-tanshinlactone Analogues
作者:Yizhou Dong、Qian Shi、Huei-Chen Pai、Chieh-Yu Peng、Shiow-Lin Pan、Che-Ming Teng、Kyoko Nakagawa-Goto、Donglei Yu、Yi-Nan Liu、Pei-Chi Wu、Kenneth F. Bastow、Susan L. Morris-Natschke、Arnold Brossi、Jing-Yu Lang、Jennifer L. Hsu、Mien-Chie Hung、Eva Y.-H. P. Lee、Kuo-Hsiung Lee
DOI:10.1021/jm1000858
日期:2010.3.11
Neo-tanshinlactone (1) and its previously reported analogues, such as 2, are potent and selective in vitro antibreast cancer agents. The synthetic pathway to 2 was optimized from seven to five steps, with a better overall yield. Structure-activity relationships studies on these compounds revealed some key molecular determinants for this family of antibreast agents. Several derivatives (19-21 and 24) exerted potent and selective antibreast cancer activity with IC50 values of 0.3, 0.2, 0.1, and 0.1 mu g/mL, respectively, against the ZR-75-1 cell lines. Compound 24 was 2- to 3-fold more potent than I against SK-BR-3 and ZR-75-1. Importantly, 21 exhibited high selectivity; it was 23 times more active against ZR-75-1 than MCF-7. Compound 20 had an approximately 12-fold ratio of SK-BR-3/MCF-7 selectivity. In addition, analogue 2 showed potent activity against it ZR-75-1 xenograft model, but not PC-3 and MDA-MB-231 xenografts, as well as high selectivity against breast cancer cell line compared with normal breast tissue-derived cell lines. Further development of lead compounds 19-21 and 24 as clinical trial candidates is warranted.