Atypical sulfur-containing physalin from Physalis minima and protective effect against ischemia-reperfusion injury

IF 3.2 2区 生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY Phytochemistry Pub Date : 2025-03-12 DOI:10.1016/j.phytochem.2025.114478
Jiangping Wu , Zixu Li , Jianping Zhao , Tao Zhang , Jun Zhang , Qiuyue Lv , Jiangfei Li , Guodong Wang , Jun Han , Zhongmei Zou
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Abstract

Four previously undescribed physalins (14), along with six known ones (510) were isolated and identified from the whole plants of Physalis minima L., a medicinal and edible plant traditionally used in southwest China. Their structures were established through comprehensive spectroscopic analyses, including high-resolution electrospray ionization mass spectrometry and 1D/2D nuclear magnetic resonance spectroscopy. Moreover, the absolute configurations of 13, 5 and 7 were examined by X-ray diffraction analyses. Compound 1, an undescribed sulfur-containing physalin, exhibited the most protective effect against oxygen-glucose deprivation/reperfusion (OGD/R)-stimulated ischemia-reperfusion (I/R) injury in PC12 cells. Meanwhile, compound 1 was found to reduce the inflammatory response, with mechanistic studies indicating that it decreased pyroptosis-associated proteins, such as cleaved-caspase1, NLRP3, and GSDMD N-terminus. Importantly, GSDMD knockdown significantly reversed the protective effects of compound 1, highlighting the involvement of pyroptosis in the compound's protective mechanism against OGD/R-induced I/R injury in PC12 cells in vitro.

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来源期刊
Phytochemistry
Phytochemistry 生物-植物科学
CiteScore
6.40
自引率
7.90%
发文量
443
审稿时长
39 days
期刊介绍: Phytochemistry is a leading international journal publishing studies of plant chemistry, biochemistry, molecular biology and genetics, structure and bioactivities of phytochemicals, including ''-omics'' and bioinformatics/computational biology approaches. Phytochemistry is a primary source for papers dealing with phytochemicals, especially reports concerning their biosynthesis, regulation, and biological properties both in planta and as bioactive principles. Articles are published online as soon as possible as Articles-in-Press and in 12 volumes per year. Occasional topic-focussed special issues are published composed of papers from invited authors.
期刊最新文献
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