ReferenceID 4751

Bixin Protects Against Kidney Interstitial Fibrosis Through Promoting STAT6 Degradation

Front Cell Dev Biol

Bixin, a natural carotenoid extracted from the seeds of Bixa orellana, has antioxidant and anti-inflammation effects. However, the pharmacological effects and underlying mechanisms of bixin in kidney interstitial fibrosi

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Reference Id
4751
Evidence Id
21341
Core Evidence Id
21341
Source Reference Id
2738
Herb2 Reference Id
HBREF003535
Subject Paper Key
HBIN018639_33313043
Pubmed Id
33313043
Doi
10.3389/fcell.2020.576988
Paper Title
Bixin Protects Against Kidney Interstitial Fibrosis Through Promoting STAT6 Degradation
Paper Abstract
Bixin, a natural carotenoid extracted from the seeds of Bixa orellana, has antioxidant and anti-inflammation effects. However, the pharmacological effects and underlying mechanisms of bixin in kidney interstitial fibrosis remain unknown. Partial epithelial-to-mesenchymal transition (EMT) of tubular cells has been linked to renal interstitial fibrosis. Here, we found that in the unilateral ureteral obstruction model, bixin administration could ameliorate kidney interstitial fibrosis. The expression of signal transducer and activator of transcription 6 (STAT6) was dramatically increased in renal tubular cells. Bixin treatment inhibited STAT6 induction. The activation of STAT6 signaling was essential for transforming growth factor beta1, fibrotic markers, and EMT-related protein expression in HK2 cells, which was confirmed by using the Stat6-/- mice. Ubiquitination, but not the acetylation level of STAT6, was induced by bixin treatment and promoted the suppression of phosphorylation and stability of STAT6. P62-dependent autophagy might be involved in this process. The study demonstrated that bixin can be exploited therapeutically to alleviate renal interstitial fibrosis by targeting STAT6 signaling deactivation.
Journal
Front Cell Dev Biol
Publish Year
2020
Experiment Subject
mouse; hk2 cells
Experiment Type
Animal & Cell Experiment
Phenotype Related
Kidney Interstitial Fibrosis; Unilateral Ureteral Obstruction; Renal Interstitial Fibrosis
Paper Title Cn
Paper Title En
Bixin Protects Against Kidney Interstitial Fibrosis Through Promoting STAT6 Degradation
Bilingual Status
semi_complete