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Establishment and characterization of pheochromocytoma tumor models expressing different levels of trkA receptors

Authors
Journal
Cancer Letters
0304-3835
Publisher
Elsevier
Publication Date
Volume
200
Issue
2
Identifiers
DOI: 10.1016/s0304-3835(03)00414-2
Keywords
  • Pheochromocytoma
  • Characterization
  • Trka-Receptor Overexpression
  • Tumorogenicity

Abstract

Abstract To date experimental in vivo pheochromocytoma (PC) models have not been available. A major in vitro PC model consists of PC12 cells that respond to nerve growth factor (NGF) by differentiation, mediated by the trkA receptor. We report the establishment of PC12 tumor models expressing low and high levels of trkA receptor in CD1 nude mice. The tumors are characterized by their responsiveness to NGF, karyotype, presence of enolase, and chromaffin granules, as well as dopamine release. These novel PC models facilitate research on the role of the trkA receptor in cancer and the development of trkA-selective anti-cancer agents.

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