| Literature DB >> 28782948 |
Olga V Tsepaeva1, Andrey V Nemtarev1,2, Timur I Abdullin2, Leysan R Grigor'eva2, Elena V Kuznetsova2, Rezeda A Akhmadishina2, Liliya E Ziganshina2, Hanh H Cong2, Vladimir F Mironov1,2.
Abstract
A series of new triphenylphosphonium (TPP) derivatives of the triterpenoid betulin (1, 3-lup-20(29)-ene-3β,28-diol) have been synthesized and evaluated for cytotoxic effects against human breast cancer (MCF-7), prostate adenocarcinoma (PC-3), vinblastine-resistant human breast cancer (MCF-7/Vinb), and human skin fibroblast (HSF) cells. The TPP moiety was applied as a carrier group through the acyl linker at the 28- or 3- and 28-positions of betulin to promote cellular and mitochondrial accumulation of the resultant compounds. A structure-activity relationship study has revealed the essential role of the TPP group in the biological properties of the betulin derivatives produced. The present results showed that a conjugate of betulin with TPP (3) enhanced antiproliferative activity toward vinblastine-resistant MCF-7 cells, with an IC50 value as low as 0.045 μM.Entities:
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Year: 2017 PMID： 28782948 DOI： 10.1021/acs.jnatprod.7b00105
Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050