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Open Access Green as soon as Postprint is submitted to ZB.
A 41 kDa Transferrin Related Molecule Acts as an Autocrine Growth Factor for HL-60 Cells.
Biochem. Biophys. Res. Commun. 176, 473-478 (1991)
HL-60 cells produce an autostimulatory growth factor. Since the stimulatory effect of HL-60 conditioned medium is only observed in the absence of exogenous transferrin we have assayed HL-60 cells for the production of transferrin and found that they produce polypeptides which react with transferrin antibodies. 35S-methionine labelling, immunoprecipitation and subsequent separation by SDS-gel electrophoresis reveals the presence of a major transferrin related 41 +/- 2 kDa species released by HL-60 cells. Physiological levels of iron salts completely abolish the requirement of exogenous transferrin which indicates that the endogenous transferrin related polypeptides in the presence of exogenous inorganic iron salts are sufficient for the proliferation of HL-60 cells provided insulin or related growth factors are present. The addition of transferrin receptor antibodies inhibits the stimulatory action of the endogenous transferrin related activity.
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Publication type
Article: Journal article
Document type
Scientific Article
Language
english
Publication Year
1991
HGF-reported in Year
0
ISSN (print) / ISBN
0006-291X
e-ISSN
1090-2104
Quellenangaben
Volume: 176,
Issue: 1,
Pages: 473-478
Publisher
Elsevier
Reviewing status
Peer reviewed
PubMed ID
2018536
Erfassungsdatum
1991-12-31