Enhanced BMP signaling in Cathepsin K-positive tendon progenitors induces heterotopic ossification.
BMP signaling
Hedgehog signaling
Heterotopic ossification
Mechanotransduction
Mouse
Journal
Biochemical and biophysical research communications
ISSN: 1090-2104
Titre abrégé: Biochem Biophys Res Commun
Pays: United States
ID NLM: 0372516
Informations de publication
Date de publication:
25 12 2023
25 12 2023
Historique:
received:
29
08
2023
accepted:
23
10
2023
pmc-release:
25
12
2024
medline:
27
11
2023
pubmed:
11
11
2023
entrez:
10
11
2023
Statut:
ppublish
Résumé
Heterotopic ossification (HO) is abnormal bone growth in soft tissues that results from injury, trauma, and rare genetic disorders. Bone morphogenetic proteins (BMPs) are critical osteogenic regulators which are involved in HO. However, it remains unclear how BMP signaling interacts with other extracellular stimuli to form HO. To address this question, using the Cre-loxP recombination system in mice, we conditionally expressed the constitutively activated BMP type I receptor ALK2 with a Q207D mutation (Ca-ALK2) in Cathepsin K-Cre labeled tendon progenitors (hereafter "Ca-Alk2:Ctsk-Cre"). Ca-Alk2:Ctsk-Cre mice were viable but they formed spontaneous HO in the Achilles tendon. Histological and molecular marker analysis revealed that HO is formed via endochondral ossification. Ectopic chondrogenesis coincided with enhanced GLI1 production, suggesting that elevated Hedgehog (Hh) signaling is involved in the pathogenesis of HO. Interestingly, focal adhesion kinase, a critical mediator for the mechanotransduction pathway, was also activated in Ca-Alk2:Ctsk-Cre mice. Our findings suggest that enhanced BMP signaling may elevate Hh and mechanotransduction pathways, thereby causing HO in the regions of the Achilles tendon.
Identifiants
pubmed: 37948912
pii: S0006-291X(23)01241-X
doi: 10.1016/j.bbrc.2023.149147
pmc: PMC10952113
mid: NIHMS1972849
pii:
doi:
Substances chimiques
Cathepsin K
EC 3.4.22.38
Hedgehog Proteins
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
149147Subventions
Organisme : NIDCR NIH HHS
ID : R01 DE025897
Pays : United States
Informations de copyright
Copyright © 2023 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declared no potential conflicts of interest for the research, authorship, and/or publication of this article.
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