Bone conditioned medium enhances cell aggregation, cell proliferation and alkaline phosphatase activity in serum-deprived medium

The effect of medium conditioned by whole bone was examined on the activity of a heterogeneous population of rat calvarial cells grown under serum-deprived conditions. Conditioned medium (CM) had pronounced effects on the appearance of cultures within 24–48 hours of addition. This was characterized...

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Veröffentlicht in:Bone (New York, N.Y.) N.Y.), 1990, Vol.11 (2), p.121-126
Hauptverfasser: Gordon, M.T., John, J.St, Braidman, I.P., Anderson, D.C.
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container_end_page 126
container_issue 2
container_start_page 121
container_title Bone (New York, N.Y.)
container_volume 11
creator Gordon, M.T.
John, J.St
Braidman, I.P.
Anderson, D.C.
description The effect of medium conditioned by whole bone was examined on the activity of a heterogeneous population of rat calvarial cells grown under serum-deprived conditions. Conditioned medium (CM) had pronounced effects on the appearance of cultures within 24–48 hours of addition. This was characterized by the breakdown of the cell monolayer, rounding of cells and formation of alkaline phosphatase-positive aggregates. Cellular alkaline phosphatase activity was increased compared to controls while acid phosphatase levels were reduced. These aggregates grown in the presence of 10 mM β-glycerophosphate did not show evidence of mineralization. These results show that soluble factors derived from calvarial bone are responsible for cell aggregation, cell proliferation and increase in alkaline phosphatase activity.
doi_str_mv 10.1016/8756-3282(90)90059-8
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1873-2763
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source MEDLINE; Elsevier ScienceDirect Journals
subjects Acid phosphatase
Acid Phosphatase - metabolism
Alkaline phosphatase
Alkaline Phosphatase - metabolism
Animals
Blood
Bone and Bones - cytology
Bone and Bones - enzymology
Calcification, Physiologic
Calvarial cells
Cell aggregation
Cell Aggregation - physiology
Cell Division - physiology
Cells, Cultured
Conditioned medium
Culture Media
Microscopy, Electron
Rats
Rats, Inbred Strains
Space life sciences
Thymidine - metabolism
title Bone conditioned medium enhances cell aggregation, cell proliferation and alkaline phosphatase activity in serum-deprived medium
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