Platelet‐derived growth factor stimulation of [3H]‐glucosamine incorporation in density‐arrested BALB/c‐3T3 cells

Maureen A. Harrington, Walker Wharton, W. J. Pledger

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

G0/G1 traverse in density‐arrested BALB/c‐3T3 cells is controlled by multiple serum‐derived growth factors. Platelet‐derived growth factor (PDGF) initiates a proliferative response, whereas factors present in plasma facilitate progression through G0/G1. In the absence of competence formation, progression factors are unable to stimulate cell cycle traverse. We have identified the stimulation of a biochemical process specific to competence formation in BALB/c‐3T3 cells. PDGF treated BALB/c‐3T3 cells incorporated 5–10‐fold more [3H]‐glucosamine (GlcN) into acid‐insoluble material as compared to plateletpoor plasma (PPP) treated cultures. Increased GlcN incorporation occurred in density‐arrested BALB/c‐3T3 cells in response to treatment with other competence factors, fibroblast growth factor, and Ca3 (PO4)2 and was not due to cellcycle traverse. Stimulation of [3H]‐GlcN incorporation by PDGF was time dependent, and increased incorporation of [3H]‐GlcN into protein required de novo protein synthesis. Several mechanisms through which PDGF could increase GlcN incorporation into cellular material were examined. Results of these studies suggest an increase in the cellular capacity to glycosylate proteins is a response to or a part of competence formation.

Original languageEnglish (US)
Pages (from-to)93-102
Number of pages10
JournalJournal of cellular physiology
Volume130
Issue number1
DOIs
StatePublished - Jan 1987

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BALB 3T3 Cells
Glucosamine
Platelet-Derived Growth Factor
Mental Competency
Cell Cycle
Biochemical Phenomena
Cells
Plasmas
Proteins
Fibroblast Growth Factors
Platelets
Intercellular Signaling Peptides and Proteins
Blood Platelets
Acids
Serum

ASJC Scopus subject areas

  • Physiology
  • Clinical Biochemistry
  • Cell Biology

Cite this

Platelet‐derived growth factor stimulation of [3H]‐glucosamine incorporation in density‐arrested BALB/c‐3T3 cells. / Harrington, Maureen A.; Wharton, Walker; Pledger, W. J.

In: Journal of cellular physiology, Vol. 130, No. 1, 01.1987, p. 93-102.

Research output: Contribution to journalArticle

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