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Expression of messenger RNAs for platelet-derived growth factor and its receptors in human sarcoma cell lines

✍ Scribed by P. Leveen; L. Claesson-Welsh; C. H. Heldin; B. Westermark; C. Betsholtz

Publisher
John Wiley and Sons
Year
1990
Tongue
French
Weight
825 KB
Volume
46
Category
Article
ISSN
0020-7136

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✦ Synopsis

Growth factors of the platelet-derived growth factor (PDCF) family have been thought to possess autocrine functions in certain neoplasms of mesenchymal and glial origin. This notion has been based on observations that these tumors express PDGF genes and produce PDGF-like growth factors. Corresponding data on PDGF receptor expression in sarcoma cell lines is essentially lacking. The cloning of cDNA for 2 distinct PDGF receptors with different abilities to recognize the members of the PDGF family and availability of recombinant PDGF for binding studies have recently made it possible to study the expression of both receptor types in tumor cell lines. We present here a study on 8 human sarcoma cell lines, and show a large variability and independency in the expression of the 2 PDGF receptor types as well as of the genes encoding the corresponding ligands.

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