Abstract:
:Heterotopic ossification (HO) is the aberrant formation of mature, lamellar bone in nonosseous tissue. Fibrodysplasia ossificans progressiva (FOP) is a rare and devastating genetic disorder that causes progressive HO in the ligaments, tendons, and muscles throughout the body. FOP is attributed to an autosomal mutation in activin receptor-like kinase 2 (ALK2), a bone morphogenetic protein (BMP) type I receptor. Initial studies show that mutant ALK2 drives HO by constitutively activating the BMP signaling pathway. Recently, mutant ALK2 has been shown to transduce Smad1/5 signaling and enhance chondrogenesis, calcification in response to Activin A, which normally signals through Smad2/3 and inhibits BMP signaling pathway. Furthermore, Activin A induces heterotopic bone formation via mutant ALK2, while inhibition of Activin A blocks spontaneous and trauma-induced HO. In this manuscript, we describe the molecular mechanism of the causative gene ALK2 in FOP, mainly focusing on the prominent role of Activin A in HO. It reveals a potential strategy for prevention and treatment of FOP by inhibition of Activin A. Further studies are needed to explore the cellular and molecular mechanisms of Activin A in FOP in more detail.
journal_name
Biosci Repjournal_title
Bioscience reportsauthors
Lin H,Shi F,Gao J,Hua Pdoi
10.1042/BSR20190377subject
Has Abstractpub_date
2019-08-02 00:00:00issue
8eissn
0144-8463issn
1573-4935pii
BSR20190377journal_volume
39pub_type
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journal_title:Bioscience reports
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abstract:BACKGROUND/AIMS:MicroRNAs (miRNAs) are involved in the pathogenesis of osteoarthritis (OA). The present study aimed to investigate the potential function of miR-122 in the development of OA and its potential molecular mechanisms. METHODS:The expression of miR-122, silent information regulator 1 (SIRT1), collagen II, a...
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doi:10.1042/BSR20191908
更新日期:2020-06-26 00:00:00
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journal_title:Bioscience reports
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journal_title:Bioscience reports
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doi:10.1007/s10540-006-9019-7
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journal_title:Bioscience reports
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journal_title:Bioscience reports
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journal_title:Bioscience reports
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journal_title:Bioscience reports
pub_type: 杂志文章
doi:10.1042/BSR20130018
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journal_title:Bioscience reports
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journal_title:Bioscience reports
pub_type: 杂志文章
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journal_title:Bioscience reports
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journal_title:Bioscience reports
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journal_title:Bioscience reports
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journal_title:Bioscience reports
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journal_title:Bioscience reports
pub_type: 杂志文章
doi:10.1042/BSR20182458
更新日期:2020-04-30 00:00:00