ACT001 improves OVX-induced osteoporosis by suppressing the NF-κB/NLRP3 signaling pathway

Abstract Osteoporosis (OP) is a common systemic metabolic bone disease characterized by the decrease in bone mass and hyperactivity of osteoclasts. ACT001 is approved as an orphan drug by FDA and has shown multiple protective effects against tissue injury. However, its role in prevention of osteocla...

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Main Authors: Yuan Li, Jin-Yu Yang, Ma-Li Lin, Tian-Zhu Liu, Wen-Na Lu, Ying Yang, Zhong-Cheng Liu, Jian-Heng Li, Guo-Qiang Zhang, Jian-Shuang Guo
Format: Article
Language:English
Published: BMC 2025-04-01
Series:Molecular Medicine
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Online Access:https://doi.org/10.1186/s10020-025-01189-3
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author Yuan Li
Jin-Yu Yang
Ma-Li Lin
Tian-Zhu Liu
Wen-Na Lu
Ying Yang
Zhong-Cheng Liu
Jian-Heng Li
Guo-Qiang Zhang
Jian-Shuang Guo
author_facet Yuan Li
Jin-Yu Yang
Ma-Li Lin
Tian-Zhu Liu
Wen-Na Lu
Ying Yang
Zhong-Cheng Liu
Jian-Heng Li
Guo-Qiang Zhang
Jian-Shuang Guo
author_sort Yuan Li
collection DOAJ
description Abstract Osteoporosis (OP) is a common systemic metabolic bone disease characterized by the decrease in bone mass and hyperactivity of osteoclasts. ACT001 is approved as an orphan drug by FDA and has shown multiple protective effects against tissue injury. However, its role in prevention of osteoclast differentiation and the underlying mechanisms have not been elucidated. Herein, we show that ACT001 inhibited RANKL-induced osteoclast differentiation and F-actin ring formation through suppressing the expression of Nfatc1, TRAP, Ctsk, Dc-stamp without obvious cytotoxicity in vitro. ACT001 restrained the phosphorylation of NF-κB and the activation of NLRP3 inflammasome, thereby decreased the expression of pyroptosis-related protein. (GSDMD, caspase-1, IL-1β, IL-18). Consistent with ACT001, the NLRP3 inflammasome inhibitor MCC950 treatment also suppressed the osteoclastogenesis through inhibiting the transcriptional activation of Nfatc1. Furthermore, ACT001 protected ovariectomy-induced bone loss in mice, reduced the number of osteoclasts, downregulated the expression of NLRP3 and IL-1β. These data indicate that ACT001 can reduce RANKL-induced osteoclast differentiation through suppressing the NF-κB/NLRP3 pathway, and attenuate the bone loss induced by estrogen-deficiency, suggesting its therapeutic potential for bone homeostasis maintenance and osteoporosis treatment.
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issn 1528-3658
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spelling doaj-art-4a104ee35dbc4bbfa1c8b054437fe6c72025-08-20T03:06:57ZengBMCMolecular Medicine1528-36582025-04-0131111710.1186/s10020-025-01189-3ACT001 improves OVX-induced osteoporosis by suppressing the NF-κB/NLRP3 signaling pathwayYuan Li0Jin-Yu Yang1Ma-Li Lin2Tian-Zhu Liu3Wen-Na Lu4Ying Yang5Zhong-Cheng Liu6Jian-Heng Li7Guo-Qiang Zhang8Jian-Shuang Guo9State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei UniversityState Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei UniversityState Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei UniversityState Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei UniversityState Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei UniversityState Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei UniversityState Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei UniversityState Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei UniversityState Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei UniversityState Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Pharmaceutical Sciences, Hebei UniversityAbstract Osteoporosis (OP) is a common systemic metabolic bone disease characterized by the decrease in bone mass and hyperactivity of osteoclasts. ACT001 is approved as an orphan drug by FDA and has shown multiple protective effects against tissue injury. However, its role in prevention of osteoclast differentiation and the underlying mechanisms have not been elucidated. Herein, we show that ACT001 inhibited RANKL-induced osteoclast differentiation and F-actin ring formation through suppressing the expression of Nfatc1, TRAP, Ctsk, Dc-stamp without obvious cytotoxicity in vitro. ACT001 restrained the phosphorylation of NF-κB and the activation of NLRP3 inflammasome, thereby decreased the expression of pyroptosis-related protein. (GSDMD, caspase-1, IL-1β, IL-18). Consistent with ACT001, the NLRP3 inflammasome inhibitor MCC950 treatment also suppressed the osteoclastogenesis through inhibiting the transcriptional activation of Nfatc1. Furthermore, ACT001 protected ovariectomy-induced bone loss in mice, reduced the number of osteoclasts, downregulated the expression of NLRP3 and IL-1β. These data indicate that ACT001 can reduce RANKL-induced osteoclast differentiation through suppressing the NF-κB/NLRP3 pathway, and attenuate the bone loss induced by estrogen-deficiency, suggesting its therapeutic potential for bone homeostasis maintenance and osteoporosis treatment.https://doi.org/10.1186/s10020-025-01189-3ACT001OsteoporosisOsteoclastogenesisNF-κB pathwayNLRP3 inflammasome
spellingShingle Yuan Li
Jin-Yu Yang
Ma-Li Lin
Tian-Zhu Liu
Wen-Na Lu
Ying Yang
Zhong-Cheng Liu
Jian-Heng Li
Guo-Qiang Zhang
Jian-Shuang Guo
ACT001 improves OVX-induced osteoporosis by suppressing the NF-κB/NLRP3 signaling pathway
Molecular Medicine
ACT001
Osteoporosis
Osteoclastogenesis
NF-κB pathway
NLRP3 inflammasome
title ACT001 improves OVX-induced osteoporosis by suppressing the NF-κB/NLRP3 signaling pathway
title_full ACT001 improves OVX-induced osteoporosis by suppressing the NF-κB/NLRP3 signaling pathway
title_fullStr ACT001 improves OVX-induced osteoporosis by suppressing the NF-κB/NLRP3 signaling pathway
title_full_unstemmed ACT001 improves OVX-induced osteoporosis by suppressing the NF-κB/NLRP3 signaling pathway
title_short ACT001 improves OVX-induced osteoporosis by suppressing the NF-κB/NLRP3 signaling pathway
title_sort act001 improves ovx induced osteoporosis by suppressing the nf κb nlrp3 signaling pathway
topic ACT001
Osteoporosis
Osteoclastogenesis
NF-κB pathway
NLRP3 inflammasome
url https://doi.org/10.1186/s10020-025-01189-3
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