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Expression of messenger RNAs for platelet‐derived growth factor and its receptors in human sarcoma cell lines
Author(s) -
Leveen P.,
ClaessonWelsh L.,
Heldin C. H.,
Westermark B.,
Betsholtz C.
Publication year - 1990
Publication title -
international journal of cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.475
H-Index - 234
eISSN - 1097-0215
pISSN - 0020-7136
DOI - 10.1002/ijc.2910460620
Subject(s) - platelet derived growth factor receptor , autocrine signalling , platelet derived growth factor , biology , growth factor , receptor , cell culture , growth factor receptor , complementary dna , sarcoma , microbiology and biotechnology , cancer research , cell growth , gene , genetics , pathology , medicine
Growth factors of the platelet‐derived growth factor (PDGF) 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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