Aurantio-obtusin improves obesity and protects hepatic inflammation by rescuing mitochondrial damage in overwhelmed brown adipose tissue

Abstract Background Obesity is frequently linked to chronic systamic inflammation and presents significant challenges to public health. Aurantio-obtusin (AO) boosted the brown adipose tissue (BAT) thermogenesis in diet-induced obesity. However, the specific mechanisms by which injured mitochondria-r...

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Main Authors: Ruiyu Wu, Runping Liu, Ranyun Chen, Yijie Li, Xiaoyong Xue, Yinhao Zhang, Fanghong Li, Jiaorong Qu, Lingling Qin, Chen Wang, Xiaojiaoyang Li
Format: Article
Language:English
Published: BMC 2025-03-01
Series:Chinese Medicine
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Online Access:https://doi.org/10.1186/s13020-025-01097-y
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author Ruiyu Wu
Runping Liu
Ranyun Chen
Yijie Li
Xiaoyong Xue
Yinhao Zhang
Fanghong Li
Jiaorong Qu
Lingling Qin
Chen Wang
Xiaojiaoyang Li
author_facet Ruiyu Wu
Runping Liu
Ranyun Chen
Yijie Li
Xiaoyong Xue
Yinhao Zhang
Fanghong Li
Jiaorong Qu
Lingling Qin
Chen Wang
Xiaojiaoyang Li
author_sort Ruiyu Wu
collection DOAJ
description Abstract Background Obesity is frequently linked to chronic systamic inflammation and presents significant challenges to public health. Aurantio-obtusin (AO) boosted the brown adipose tissue (BAT) thermogenesis in diet-induced obesity. However, the specific mechanisms by which injured mitochondria-related damage signals derived from overwhelmed BAT can transmit to liver and exacerbate metabolic disorders and whether AO can reverse this process remain unknown. Materials and methods After applying high-fat diet and glucose-fructose water (HFHS)-induced obesity mice, different BAT transplant procedures and primary BAT adipocytes, we investigated the anti-obesity effects and mechanism of AO through RNA sequencing and biology techniques. Results AO improved whole-body lipid accumulation, mitochondrial metabolism in BAT and hepatic inflammation in HFHS-induced obesity mice. Interscapular transplant of BAT-derived from obese donor mice triggered hepatic inflammation of chow diet-fed recipient mice, which was protected by AO. Furthermore, the transplantation of BAT-derived from AO-treated mice protected hepatic inflammation in obese mice. In vivo and in lipid-challenged primary BAT adipocytes, AO decreased kexin type 9 (PCSK9), prevented mPTP opening and mitochondrial DNA (mtDNA) release in extracellular vesicles (EVs) manner by inhibiting the acetylation of cyclophilin D associated with adenine nucleotide translocase, suppressing oligomerization of voltage-dependent anion channel 1 and activating mitophagy. Ultimately, AO inhibited mtDNA-containing EVs-induced cyclic GMP-AMP synthase/stimulator of interferon genes (STING) activation and hepatic inflammation, which was confirmed by Sting−/− mice. Conclusion AO not only improves thermogenesis and mitochondrial function of BAT but also prevents liver inflammation by repairing mitochondrial function and blocking the transfer of mtDNA from BAT to the liver. Graphic abstract
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spelling doaj-art-3b51d5e17aaa44e2af8f0b3c3e491bbc2025-08-20T03:40:45ZengBMCChinese Medicine1749-85462025-03-0120112110.1186/s13020-025-01097-yAurantio-obtusin improves obesity and protects hepatic inflammation by rescuing mitochondrial damage in overwhelmed brown adipose tissueRuiyu Wu0Runping Liu1Ranyun Chen2Yijie Li3Xiaoyong Xue4Yinhao Zhang5Fanghong Li6Jiaorong Qu7Lingling Qin8Chen Wang9Xiaojiaoyang Li10School of Chinese Materia Medica, Beijing University of Chinese MedicineSchool of Chinese Materia Medica, Beijing University of Chinese MedicineSchool of Chinese Materia Medica, Beijing University of Chinese MedicineSchool of Life Sciences, Beijing University of Chinese MedicineSchool of Life Sciences, Beijing University of Chinese MedicineSchool of Life Sciences, Beijing University of Chinese MedicineSchool of Chinese Materia Medica, Beijing University of Chinese MedicineSchool of Life Sciences, Beijing University of Chinese MedicineDepartment of Science and Technology, Beijing University of Chinese MedicineSchool of Chinese Materia Medica, Beijing University of Chinese MedicineSchool of Life Sciences, Beijing University of Chinese MedicineAbstract Background Obesity is frequently linked to chronic systamic inflammation and presents significant challenges to public health. Aurantio-obtusin (AO) boosted the brown adipose tissue (BAT) thermogenesis in diet-induced obesity. However, the specific mechanisms by which injured mitochondria-related damage signals derived from overwhelmed BAT can transmit to liver and exacerbate metabolic disorders and whether AO can reverse this process remain unknown. Materials and methods After applying high-fat diet and glucose-fructose water (HFHS)-induced obesity mice, different BAT transplant procedures and primary BAT adipocytes, we investigated the anti-obesity effects and mechanism of AO through RNA sequencing and biology techniques. Results AO improved whole-body lipid accumulation, mitochondrial metabolism in BAT and hepatic inflammation in HFHS-induced obesity mice. Interscapular transplant of BAT-derived from obese donor mice triggered hepatic inflammation of chow diet-fed recipient mice, which was protected by AO. Furthermore, the transplantation of BAT-derived from AO-treated mice protected hepatic inflammation in obese mice. In vivo and in lipid-challenged primary BAT adipocytes, AO decreased kexin type 9 (PCSK9), prevented mPTP opening and mitochondrial DNA (mtDNA) release in extracellular vesicles (EVs) manner by inhibiting the acetylation of cyclophilin D associated with adenine nucleotide translocase, suppressing oligomerization of voltage-dependent anion channel 1 and activating mitophagy. Ultimately, AO inhibited mtDNA-containing EVs-induced cyclic GMP-AMP synthase/stimulator of interferon genes (STING) activation and hepatic inflammation, which was confirmed by Sting−/− mice. Conclusion AO not only improves thermogenesis and mitochondrial function of BAT but also prevents liver inflammation by repairing mitochondrial function and blocking the transfer of mtDNA from BAT to the liver. Graphic abstracthttps://doi.org/10.1186/s13020-025-01097-yObesityAurantio-obtusinBrown adipose tissueMitochondrial DNAInflammation
spellingShingle Ruiyu Wu
Runping Liu
Ranyun Chen
Yijie Li
Xiaoyong Xue
Yinhao Zhang
Fanghong Li
Jiaorong Qu
Lingling Qin
Chen Wang
Xiaojiaoyang Li
Aurantio-obtusin improves obesity and protects hepatic inflammation by rescuing mitochondrial damage in overwhelmed brown adipose tissue
Chinese Medicine
Obesity
Aurantio-obtusin
Brown adipose tissue
Mitochondrial DNA
Inflammation
title Aurantio-obtusin improves obesity and protects hepatic inflammation by rescuing mitochondrial damage in overwhelmed brown adipose tissue
title_full Aurantio-obtusin improves obesity and protects hepatic inflammation by rescuing mitochondrial damage in overwhelmed brown adipose tissue
title_fullStr Aurantio-obtusin improves obesity and protects hepatic inflammation by rescuing mitochondrial damage in overwhelmed brown adipose tissue
title_full_unstemmed Aurantio-obtusin improves obesity and protects hepatic inflammation by rescuing mitochondrial damage in overwhelmed brown adipose tissue
title_short Aurantio-obtusin improves obesity and protects hepatic inflammation by rescuing mitochondrial damage in overwhelmed brown adipose tissue
title_sort aurantio obtusin improves obesity and protects hepatic inflammation by rescuing mitochondrial damage in overwhelmed brown adipose tissue
topic Obesity
Aurantio-obtusin
Brown adipose tissue
Mitochondrial DNA
Inflammation
url https://doi.org/10.1186/s13020-025-01097-y
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