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Flindissone, a Limonoid Isolated from , Is an LXR Agonist. | LitMetric

AI Article Synopsis

Article Abstract

In this study, the ability of six limonoids from (Meliaceae) to activate the liver X receptor (LXR) was assessed. One of these limonoids, flindissone, was shown to activate LXR by reporter-gene assays. Flindissone is a ring-intact limonoid, structurally similar to sterol-like LXR ligands. In endogenous cellular settings, flindissone showed an activity profile that is characteristic of LXR agonists. It induced cholesterol efflux in THP-1 macrophages by increasing the cholesterol transporter ABCA1 and ABCG1 gene expression. In HepG2 cells, flindissone induced the expression of IDOL, an LXR-target gene that is associated with the downregulation of the LDL receptor. However, unlike synthetic and similarly to sterol-based LXR agonists, flindissone did not induce the expression of the SREBP1c gene, a major transcription factor regulating de novo lipogenesis. Additionally, flindissone also appeared to be able to inhibit post-translational activation of SREBP1c. The results presented here reveal a natural product as a new LXR agonist and point to an additional property of and other plant extracts containing flindissone.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10463221PMC
http://dx.doi.org/10.1021/acs.jnatprod.3c00059DOI Listing

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