Harringtonine Ester Derivatives with Enhanced Antiproliferative Activities against HL-60 and HeLa Cells

Akihiro Ochi, Makoto Yoritate, Tomofumi Miyamoto, Kazuteru Usui, Gorawit Yusakul, Waraporn Putalun, Hiroyuki Tanaka, Go Hirai, Satoshi Morimoto, Seiichi Sakamoto

研究成果: ジャーナルへの寄稿総説査読

3 被引用数 (Scopus)


Harringtonine (HT), produced from Cephalotaxus species, is known to exhibit potent antiproliferative activity against myeloid leukemia cells by inhibiting protein synthesis. A previous study using acute promyelocytic leukemia (HL-60) cells raised the possibility that the C-5′ methyl group of HT plays an important role in regulating leukemia cell line antiproliferative activity. In order to investigate the effect of hydrocarbon chains at C-5′ on the resultant activity, the C-5′ methyl group was replaced with various straight- and branched-chain hydrocarbons using the corresponding alcohols, and their antiproliferative activity against HL-60 and HeLa cells was investigated. As a result, 4′-n-heptyl-4′-demethylharringtonine (1f, n-heptyl derivative) showed the most potent cytotoxicity among the HT ester derivatives produced, with IC50values of 9.4 nM and 0.4 μM for HL-60 and HeLa cells, respectively. Interestingly, the cytotoxicity of derivative 1f against HL-60 and HeLa cells respectively was ∼5 (IC50= 50.5 nM) and ∼10 times (IC50= 4.0 μM) those of HT and ∼2 (IC50= 21.8 nM) and ∼4 times (IC50= 1.7 μM) more than homoharringtonine (HHT). These results demonstrate the potential of the derivative 1f as a lead compound against leukemia.

ジャーナルJournal of Natural Products
出版ステータス出版済み - 2月 25 2022

!!!All Science Journal Classification (ASJC) codes

  • 分析化学
  • 分子医療
  • 薬理学
  • 薬科学
  • 創薬
  • 補完代替医療
  • 有機化学


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