2009
DOI: 10.1016/j.ydbio.2009.06.002
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Critical roles of the TGF-β type I receptor ALK5 in perichondrial formation and function, cartilage integrity, and osteoblast differentiation during growth plate development

Abstract: TGF-β has been implicated in the proliferation and differentiation of chondrocytes and osteoblasts. However, the in vivo function of TGF-β in skeletal development is unclear. In this study, we investigated the role of TGF-β signaling in growth plate development by creating mice with a conditional knockout of the TGF-β type I receptor ALK5 (ALK5CKOCKO) in skeletal progenitor cells using Dermo1-Cre mice. ALK5CKO mice had short and wide long bones, reduced bone collars, and trabecular bones. In ALK5CKO growth pla… Show more

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Cited by 110 publications
(98 citation statements)
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“…S1B). TGF␤ signaling is reported to be involved in the proliferation of perichondrial cells and osteoblast differentiation (26,27). In the cultured metatarsals in the present study, rhTGF␤1 increased the thickness of the perichondrium and inhibited the SAG-induced ectopic bone collar formation (supplemental.…”
Section: Development Of An Organ Culture System That Enables the Obsesupporting
confidence: 52%
“…S1B). TGF␤ signaling is reported to be involved in the proliferation of perichondrial cells and osteoblast differentiation (26,27). In the cultured metatarsals in the present study, rhTGF␤1 increased the thickness of the perichondrium and inhibited the SAG-induced ectopic bone collar formation (supplemental.…”
Section: Development Of An Organ Culture System That Enables the Obsesupporting
confidence: 52%
“…Mesenchymal Mek mutation caused kyphosis and omphalocele, mimicking human pathological conditions that can impose a significant physical restriction on lung growth and function (Argyle, 1989;McMaster et al, 2007). In addition to Fgfr1;Fgfr2 compound mutants, abnormal body wall formation was seen in mice carrying conditional mutations in the Alk3 gene encoding a BMP type I receptor, and the Alk5 gene encoding a Tgfβ type I receptor (Matsunobu et al, 2009;Sun et al, 2007). BMP4 and TGFβ were shown to activate the ERK/MAPK pathway in various experimental conditions (Hough et al, 2012;Lee et al, 2007).…”
Section: Discussionmentioning
confidence: 99%
“…TGFb signaling controls longitudinal bone growth through inhibition of chondrocyte terminal differentiation and maintenance of the proliferating chondrocyte pool (Serra et al 1997;Alvarez et al 2001;Yang et al 2001;Alvarez and Serra 2004). Consequently, conditional inactivation of Tgfbr2 or Tgfbr1, which leads to ablation of TGF-b signaling, results in severe shortening of the limbs among other skeletal manifestations (Baffi et al 2004;Seo and Serra 2007;Matsunobu et al 2009;Hiramatsu et al 2011). …”
Section: Regulation Of Chondrogenesis and Longitudinal Bone Growth Bymentioning
confidence: 99%