Marrow adipocytes regulate growth and differentiation of osteoblasts.

Abstract:

:Conditioned media (CM) from various marrow subpopulations (MBA series) were examined for their effects on growth and maturation of marrow-derived osteoblastic cells, MBA-15. CM harvested from a stromal adipocytes, 14F1.1, stimulated cell growth, collagen but not non-collagenous proteins synthesized by MBA-15 cells. Alkaline phosphatase activity was inhibited under the same culture conditions. These results were associated with morphological changes, i.e., the large cuboidal MBA-15 cells acquired a fibroblast-like appearance. Exposure of MBA-15 cells to known growth factors: BMP-2, TGF beta, IGF-I and PDGF or combined with 14F1.1 CM resulted in a dominant effect of the latter. This may imply that marrow adipocytes produce factor/s that participate in the stromal regulation of osteoblastic functions.

authors

Benayahu D,Zipori D,Wientroub S

doi

10.1006/bbrc.1993.2611

subject

Has Abstract

pub_date

1993-12-30 00:00:00

pages

1245-52

issue

3

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(83)72611-2

journal_volume

197

pub_type

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