RRC ID 58039
著者 Hatai M, Horiyama S, Yoshikawa N, Kinoshita E, Kagota S, Shinozuka K, Nakamura K.
タイトル trans-2-Pentenal, an Active Compound in Cigarette Smoke, Identified via Its Ability to Form Adducts with Glutathione.
ジャーナル Chem Pharm Bull (Tokyo)
Abstract α,β-Unsaturated carbonyl compounds readily form adducts with SH or NH2 residues, which are nucleophilic agents, by Michael addition. Glutathione (GSH) is a tripeptide that contains an SH residue and functions as an antioxidant. We demonstrated previously that acrolein (ACR), crotonaldehyde (CA), and methyl vinyl ketone (MVK) are present in nicotine- and tar-removed cigarette smoke extract (CSE) and reacted with GSH in B16-BL6 mouse melanoma cells to form GSH-ACR, GSH-CA, and GSH-MVK adducts, suggesting a possible mechanism for CSE-induced cytotoxicity. In this study, we searched for novel α,β-unsaturated carbonyl compounds other than ACR, CA, and MVK. We selected candidate compounds in CSE based on accurate mass values generated using LC/MS analysis of products formed between CSE and GSH, and identified these using GC/MS analysis and library screening. As a result, we isolated trans-2-methyl-2-butenal, 2-methyl-2-cyclopenten-1-one, 3-methyl-2-cyclopenten-1-one, and furfural, which were poorly reactive with GSH and only very weakly inhibited growth of Colon-26 mouse carcinoma cells and BALB/3T3 clone A31 mouse normal cells. We also isolated 2-cyclopenten-1-one, trans-2-pentenal, 3-methyl-2-butenal and ethyl vinyl ketone, which were highly reactive with GSH and significantly inhibited the growth of both cell lines. Our data suggest that the reactivity of compounds in CSE with GSH may be positively correlated with the effect on inhibiting cell growth. Notably, trans-2-pentenal showed marked inhibition of carcinoma cells growth, whereas this compound exhibited little inhibitory effect on normal cells. trans-2-Pentenal may be a potent candidate or seed for antitumor agents.
巻・号 67(9)
ページ 1000-1005
公開日 2019-1-1
DOI 10.1248/cpb.c19-00345
PMID 31474722
MeSH Aldehydes / chemistry* Aldehydes / toxicity Animals Cell Line, Tumor Cell Survival / drug effects Chromatography, High Pressure Liquid Gas Chromatography-Mass Spectrometry Glutathione / chemistry* Isomerism Mass Spectrometry Mice Smoke / analysis*
IF 1.416
引用数 0
リソース情報
ヒト・動物細胞 BALB/3T3 clone A31(RCB0005)