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- W4220763457 abstract "Peimine (PM) is a bioactive compound obtained from Fritillaria. It has been documented that PM exhibits potent antitumor properties against multiple cancers. However, the antitumor properties of PM in breast cancer and its associated mechanisms have not been clarified.Proliferation and apoptosis of MCF-7 and MCF-10A cells were detected by CCK8, colony formation, and flow cytometry assays. Cytotoxicity was measured by Lactate dehydrogenase (LDH) leakage assay. The level of IL-1β and IL-18 were detected with ELISA kits. Western blotting and real-time Polymerase Chain Reaction were performed to analyze the expression of proteins and genes related to the NLRP3 inflammasome pathway and Endoplasmic reticulum stress.The doses of PM (5, 10, and 20 μM) inhibited cell viability significantly, apoptotic induction, and inflammasome activation in breast cancer cells in vitro. Inflammasome components were decreased, including the apoptosisassociated speck like protein containing a CARD (ASC) and NOD-like receptor pyrindomain-containing protein3 (NLRP3), as well as the inhibition of caspase-1 and interleukin-1β activation. Moreover, inflammasome inhibitors suppressed cell growth and induced apoptosis, implying that PM suppresses the growth of breast cancer cells through regulating inflammasome. Mechanistically, PM inhibited the activity of inflammasome by alleviating endoplasmic reticulum (ER) stress and by down-regulating the expression of multiple proteins in transcription factor nuclear factor- κB (NF-κB) and mitogen-activated protein kinases (MAPKs) signaling pathways.These findings show that PM suppresses the growth of breast cancer cells by inhibiting inflammasome activation, to a certain extent, by primarily acting on the MAPK/NF-κB pathway's inactivation-dependent mechanisms." @default.
- W4220763457 created "2022-04-03" @default.
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- W4220763457 date "2023-02-01" @default.
- W4220763457 modified "2023-09-27" @default.
- W4220763457 title "Peimine Inhibits MCF-7 Breast Cancer Cell Growth by Modulating Inflammasome Activation: Critical Roles of MAPK and NF-κB Signaling" @default.
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- W4220763457 doi "https://doi.org/10.2174/1871520622666220324100510" @default.
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