Induction of platelet-derived growth factor A and B chains and over-expression of their receptors in human pancreatic cancer

M. Ebert, M. Yokoyama, H. Friess, M. S. Kobrin, M. W. Buchler, Murray Korc

Research output: Contribution to journalArticle

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Abstract

Expression of platelet-derived growth factor (PDGF) and PDGF receptors was examined in cultured human pancreatic cancer cells, in the normal human pancreas and in pancreatic adenocarcinomas. mRNA transcripts encoding PDGF A and B chains, and PDGF receptor β (PDGFRβ) were present in PANC-I and HPAF human pancreatic cancer cells. Transforming growth factor β I (TGF-βI), but not PDGF-AA or -BB, enhanced PDGF A and B chain mRNA levels in both cell lines. In the normal human pancreas PDGF A chain mRNA levels were relatively abundant, whereas PDGF B chain mRNA levels were not detected and PDGF receptor α (PDGFRα) and β mRNA transcripts were present at low levels. PDGF immunoreactivity was present in islet cells, and PDGFRα was present in acinar cells, whereas PDGFRβ was present in acinar cells and in the connective tissue. In the pancreatic cancers, PDGF A chain mRNA transcripts were also abundant, and 6 of 13 samples exhibited the PDGF B chain mRNA transcript. In addition there was a 7-fold increase in the levels of PDGFRβ and PDGFRβ in the cancer samples by comparison with the normal pancreas. By immunohistochemistry, PDGF and both PDGF receptors were present in the cancer cells, and PDGFRβ was abundant in fibroblasts and endothelial cells within the connective tissue.

Original languageEnglish (US)
Pages (from-to)529-535
Number of pages7
JournalInternational Journal of Cancer
Volume62
Issue number5
DOIs
StatePublished - 1995
Externally publishedYes

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Proto-Oncogene Proteins c-sis
Platelet-Derived Growth Factor Receptors
Pancreatic Neoplasms
Platelet-Derived Growth Factor
Messenger RNA
Pancreas
Acinar Cells
Connective Tissue
platelet-derived growth factor A
Transforming Growth Factors
Islets of Langerhans
Neoplasms
Adenocarcinoma
Endothelial Cells
Fibroblasts
Immunohistochemistry
Cell Line

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Induction of platelet-derived growth factor A and B chains and over-expression of their receptors in human pancreatic cancer. / Ebert, M.; Yokoyama, M.; Friess, H.; Kobrin, M. S.; Buchler, M. W.; Korc, Murray.

In: International Journal of Cancer, Vol. 62, No. 5, 1995, p. 529-535.

Research output: Contribution to journalArticle

Ebert, M. ; Yokoyama, M. ; Friess, H. ; Kobrin, M. S. ; Buchler, M. W. ; Korc, Murray. / Induction of platelet-derived growth factor A and B chains and over-expression of their receptors in human pancreatic cancer. In: International Journal of Cancer. 1995 ; Vol. 62, No. 5. pp. 529-535.
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