Chronic Circadian Rhythm Disturbance Accelerates Knee Cartilage Degeneration in Rats Accompanied by the Activation of the Canonical Wnt/β-Catenin Signaling Pathway

With the gradual deepening of understanding of systemic health and quality of life, the factors affecting osteoarthritis (OA) are not limited to mechanical injury, metabolic abnormality, age and obesity, etc., but circadian rhythm, which plays a non-negligible role in human daily life. The purpose o...

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Autores principales: Xiaopeng Song, Tianwen Ma, Hailong Hu, Mingchao Zhao, Hui Bai, Xinyu Wang, Lin Liu, Ting Li, Xuanbo Sheng, Xinyu Xu, Xinmin Zhang, Li Gao
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Publicado: Frontiers Media S.A. 2021
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Acceso en línea:https://doaj.org/article/27759b4e7ab64c919523a208194845e0
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spelling oai:doaj.org-article:27759b4e7ab64c919523a208194845e02021-11-11T07:21:52ZChronic Circadian Rhythm Disturbance Accelerates Knee Cartilage Degeneration in Rats Accompanied by the Activation of the Canonical Wnt/β-Catenin Signaling Pathway1663-981210.3389/fphar.2021.760988https://doaj.org/article/27759b4e7ab64c919523a208194845e02021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fphar.2021.760988/fullhttps://doaj.org/toc/1663-9812With the gradual deepening of understanding of systemic health and quality of life, the factors affecting osteoarthritis (OA) are not limited to mechanical injury, metabolic abnormality, age and obesity, etc., but circadian rhythm, which plays a non-negligible role in human daily life. The purpose of this study was to explore the molecular mechanism of chronic circadian rhythm disturbance (CRD) inducing cartilage OA-like degeneration. Rats with the anterior cruciate ligament excision transection (ACLT) were used to establish the early-stage OA model (6-week). The light/dark (LD) cycle shifted 12 h per week for 22 weeks in order to establish a chronic CRD model. BMAL1 knockdown (KD) and Wnt/β-catenin pathway inhibition were performed in chondrocytes. The contents of proinflammatory factors and OA biomarkers in serum and chondrocyte secretions were detected by ELISA. Pathological and immunohistochemical staining of articular cartilage indicated the deterioration of cartilage. WB and qPCR were used to evaluate the relationship between matrix degradation and the activation of Wnt/β-catenin signaling pathway in chondrocytes. We found that chronic CRD could cause OA-like pathological changes in knee cartilage of rats, accelerating cartilage matrix degradation and synovial inflammation. The expression of MMP-3, MMP-13, ADAMTS-4, and β-catenin increased significantly; BMAL1, Aggrecan, and COL2A1 decreased significantly in either LD-shifted cartilage or BMAL1-KD chondrocytes. The expression of β-catenin and p-GSK-3β elevated, while p-β-catenin and GSK-3β diminished. The inhibitor XAV-939 was able to mitigated the increased inflammation produced by transfected siBMAL1. Our study demonstrates that chronic CRD disrupts the balance of matrix synthesis and catabolic metabolism in cartilage and chondrocytes, and it is related to the activation of the canonical Wnt/β-catenin signaling pathway.Xiaopeng SongXiaopeng SongTianwen MaTianwen MaHailong HuMingchao ZhaoHui BaiXinyu WangLin LiuTing LiXuanbo ShengXinyu XuXinmin ZhangLi GaoLi GaoFrontiers Media S.A.articlecircadian rhythm disturbanceosteoarthritiswnt/β-catenin signaling pathwaycartilageratTherapeutics. PharmacologyRM1-950ENFrontiers in Pharmacology, Vol 12 (2021)
institution DOAJ
collection DOAJ
language EN
topic circadian rhythm disturbance
osteoarthritis
wnt/β-catenin signaling pathway
cartilage
rat
Therapeutics. Pharmacology
RM1-950
spellingShingle circadian rhythm disturbance
osteoarthritis
wnt/β-catenin signaling pathway
cartilage
rat
Therapeutics. Pharmacology
RM1-950
Xiaopeng Song
Xiaopeng Song
Tianwen Ma
Tianwen Ma
Hailong Hu
Mingchao Zhao
Hui Bai
Xinyu Wang
Lin Liu
Ting Li
Xuanbo Sheng
Xinyu Xu
Xinmin Zhang
Li Gao
Li Gao
Chronic Circadian Rhythm Disturbance Accelerates Knee Cartilage Degeneration in Rats Accompanied by the Activation of the Canonical Wnt/β-Catenin Signaling Pathway
description With the gradual deepening of understanding of systemic health and quality of life, the factors affecting osteoarthritis (OA) are not limited to mechanical injury, metabolic abnormality, age and obesity, etc., but circadian rhythm, which plays a non-negligible role in human daily life. The purpose of this study was to explore the molecular mechanism of chronic circadian rhythm disturbance (CRD) inducing cartilage OA-like degeneration. Rats with the anterior cruciate ligament excision transection (ACLT) were used to establish the early-stage OA model (6-week). The light/dark (LD) cycle shifted 12 h per week for 22 weeks in order to establish a chronic CRD model. BMAL1 knockdown (KD) and Wnt/β-catenin pathway inhibition were performed in chondrocytes. The contents of proinflammatory factors and OA biomarkers in serum and chondrocyte secretions were detected by ELISA. Pathological and immunohistochemical staining of articular cartilage indicated the deterioration of cartilage. WB and qPCR were used to evaluate the relationship between matrix degradation and the activation of Wnt/β-catenin signaling pathway in chondrocytes. We found that chronic CRD could cause OA-like pathological changes in knee cartilage of rats, accelerating cartilage matrix degradation and synovial inflammation. The expression of MMP-3, MMP-13, ADAMTS-4, and β-catenin increased significantly; BMAL1, Aggrecan, and COL2A1 decreased significantly in either LD-shifted cartilage or BMAL1-KD chondrocytes. The expression of β-catenin and p-GSK-3β elevated, while p-β-catenin and GSK-3β diminished. The inhibitor XAV-939 was able to mitigated the increased inflammation produced by transfected siBMAL1. Our study demonstrates that chronic CRD disrupts the balance of matrix synthesis and catabolic metabolism in cartilage and chondrocytes, and it is related to the activation of the canonical Wnt/β-catenin signaling pathway.
format article
author Xiaopeng Song
Xiaopeng Song
Tianwen Ma
Tianwen Ma
Hailong Hu
Mingchao Zhao
Hui Bai
Xinyu Wang
Lin Liu
Ting Li
Xuanbo Sheng
Xinyu Xu
Xinmin Zhang
Li Gao
Li Gao
author_facet Xiaopeng Song
Xiaopeng Song
Tianwen Ma
Tianwen Ma
Hailong Hu
Mingchao Zhao
Hui Bai
Xinyu Wang
Lin Liu
Ting Li
Xuanbo Sheng
Xinyu Xu
Xinmin Zhang
Li Gao
Li Gao
author_sort Xiaopeng Song
title Chronic Circadian Rhythm Disturbance Accelerates Knee Cartilage Degeneration in Rats Accompanied by the Activation of the Canonical Wnt/β-Catenin Signaling Pathway
title_short Chronic Circadian Rhythm Disturbance Accelerates Knee Cartilage Degeneration in Rats Accompanied by the Activation of the Canonical Wnt/β-Catenin Signaling Pathway
title_full Chronic Circadian Rhythm Disturbance Accelerates Knee Cartilage Degeneration in Rats Accompanied by the Activation of the Canonical Wnt/β-Catenin Signaling Pathway
title_fullStr Chronic Circadian Rhythm Disturbance Accelerates Knee Cartilage Degeneration in Rats Accompanied by the Activation of the Canonical Wnt/β-Catenin Signaling Pathway
title_full_unstemmed Chronic Circadian Rhythm Disturbance Accelerates Knee Cartilage Degeneration in Rats Accompanied by the Activation of the Canonical Wnt/β-Catenin Signaling Pathway
title_sort chronic circadian rhythm disturbance accelerates knee cartilage degeneration in rats accompanied by the activation of the canonical wnt/β-catenin signaling pathway
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/27759b4e7ab64c919523a208194845e0
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