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Cited by 171

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Enhanced expression of TGF-β and c-fos mRNAs in the growth plates of developing human long bones

Sandberg, M., Vuorio, T., Hirvonen, H., Alitalo, K., Vuorio, E.·1988·Development

Abstract

The expression of mRNAs for type I and type II procollagens, transforming growth factor-β (TGF-β) and c-fos was studied in developing human long bones by Northern blotting and in situ hybridization. The cells producing bone and cartilage matrix were identified by hybridizations using cDNA probes for types I and II collagen, respectively. Northern blotting revealed that the highest levels of TGF-β mRNA were associated with the growth plates. By in situ hybridization, this mRNA was localized predominantly in the osteoblasts and osteoclasts of the developing bone, in periosteal fibroblasts and in individual bone marrow cells. These findings are consistent with the view that TGF-β may have a role in stimulation of type I collagen production and bone formation. Only a low level of TGF-β mRNA was detected in cartilage where type II collagen mRNA is abundant. In Northern hybridization, the highest levels of c-fos mRNA were detected in epiphyseal cartilage. In situ hybridization revealed two cell types with high levels of c-fos expression: the chondrocytes bordering the joint space . and the osteoclasts of developing bone. These differential expression patterns suggest specific roles for TGF-β and c-fos in osseochondral development.

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Crossref · 10.1242/dev.102.3.461

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Metadata

Authors
Sandberg, M., Vuorio, T., Hirvonen, H., Alitalo, K., & Vuorio, E.
Venue
Development
Published
1988-03-01
Volume
102
Issue
3
Pages
461-470
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W2413344011
Cited by
171
References
1
FWCI
7.12
Type
journal article
Language
en
Open access
closed

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