The products of the reaction between 6-amine-1,3-dimethyl uracil and bis-chalcones induce cytotoxicity with massive vacuolation in HeLa cervical cancer cell line
摘要:
As a part of our research in the chemistry of chalcones we have prepared four pyrimidine monoadducts of bis-chalcones through the reaction with 6-amino-1,3-dimethyl uracil. These compounds displayed cytotoxicity with a massive vacuolation in different human cell lines in vitro. Compound 6 was the most cytotoxic inducer of vacuoles, this compound induced G1 phase cell cycle arrest, and their cytotoxicity went without morphological and biochemical evidence of apoptotic cell death in HeLa cells. In addition, our results showed that this vacuole formation does not require de novo protein synthesis and the content vacuolar is acidic. Compound 6 induce necrotic cell death with excessive vacuolation, similar to a process of autophagy. Spautin-1 an inhibitor of autophagy, decreased the transformation of microtubule-associated protein 1 light chain 3 (LC3B-I) to LC3B-II and the vacuolation induced by compound 6 in HeLa cells, both autophagy processes. These compounds could be of pivotal importance in the study of non-apoptotic cell death with vacuole formation and could be useful in research into new autophagy inhibitors agents. (C) 2012 Elsevier Masson SAS. All rights reserved.
This study establishes the diarylidenecyclohexanones as good anti-inflammatory pharmacophores with selective high potency against PGE2and 5-LOX without toxicity towards healthy human cells.
strains P. falciparum Dd2, IC50 1 µM (Ib) and 2.7 µM (Id)} and PfINDO IC50 1.1 µM (Ib) and 2.5 µM (Id)}. Drug exposure followed by drug withdrawal-based stage-specific kill kinetic studies showed that Ib is shizonticidal within 3h while the earliest killing actions against Trophozoites and Rings were seen at >3h and >6 h, respectively. Combination studies of the most potent leads viz. Ib and Id showed
Chemoselective Claisen–Schmidt bis-substitutional condensation catalyzed by an alkoxy-bridged dinuclear Ti(IV) cluster
作者:Yufei Wu、Jie Hou、Yuliang Liu、Mingfu Zhang、Chen-Ho Tung、Yifeng Wang
DOI:10.1016/j.tet.2016.01.055
日期:2016.3
The highly efficient and chemoselective α,α′-bis-substitution of alkanones is important in organic synthesis. Herein, a dimeric titanium cluster, Ti2Cl2(OPri)6·2HOPri (Ti2), is used in the Claisen–Schmidt condensation reaction, for the selectively activation of symmetricalketones containing α,α′-methylene groups and production of α,α′-bis-substituted alkanones in high efficiency and chemoselectivity
The products of the reaction between 6-amine-1,3-dimethyl uracil and bis-chalcones induce cytotoxicity with massive vacuolation in HeLa cervical cancer cell line
作者:José D. Solano、Ignacio González-Sánchez、Marco A. Cerbón、Ángel Guzmán、Miguel A. Martínez-Urbina、Miguel A. Vilchis-Reyes、Eduardo C. Martínez-Zuñiga、Cuauhtémoc Alvarado、Angelina Quintero、Eduardo Díaz
DOI:10.1016/j.ejmech.2012.12.021
日期:2013.2
As a part of our research in the chemistry of chalcones we have prepared four pyrimidine monoadducts of bis-chalcones through the reaction with 6-amino-1,3-dimethyl uracil. These compounds displayed cytotoxicity with a massive vacuolation in different human cell lines in vitro. Compound 6 was the most cytotoxic inducer of vacuoles, this compound induced G1 phase cell cycle arrest, and their cytotoxicity went without morphological and biochemical evidence of apoptotic cell death in HeLa cells. In addition, our results showed that this vacuole formation does not require de novo protein synthesis and the content vacuolar is acidic. Compound 6 induce necrotic cell death with excessive vacuolation, similar to a process of autophagy. Spautin-1 an inhibitor of autophagy, decreased the transformation of microtubule-associated protein 1 light chain 3 (LC3B-I) to LC3B-II and the vacuolation induced by compound 6 in HeLa cells, both autophagy processes. These compounds could be of pivotal importance in the study of non-apoptotic cell death with vacuole formation and could be useful in research into new autophagy inhibitors agents. (C) 2012 Elsevier Masson SAS. All rights reserved.