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Short Communication |


Departments of Pathology*
and Biochemistry and
Molecular Genetics,
University of Virginia
Health Sciences Center, Charlottesville, and Department of
Medicine,
Medical College of Virginia
Commonwealth University, McGuire Veterans Affairs Medical Center,
Richmond, Virginia
The c-kit gene encodes a tyrosine kinase receptor (KIT) that is required in normal spermatogenesis and is expressed in seminomas and dysgerminomas, a subset of human germ cell tumors (GCTs). To determine whether activating mutations of the c-kit gene occur in GCTs, primary tissue samples of 33 testicular and ovarian tumors were examined for mutations in the juxtamembrane and phosphotransferase domains by polymerase chain reaction amplification and DNA sequencing. A novel missense mutation (D816H) was found in the phosphotransferase domain in tumors of seminoma/dysgerminoma differentiation. The c-kit alleles in nonneoplastic tissues from these patients were wild type, suggesting that the mutant alleles were acquired and selected for during malignant transformation. In cell transfection experiments, the D816H mutant protein was a constitutively activated kinase and was constitutively phosphorylated on tyrosine residues. This is the first description of an activating c-kit mutation in GCTs and is evidence that the KIT signal transduction pathway is important in the pathogenesis of neoplasms with seminoma differentiation.
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L. H. J. Looijenga, H. de Leeuw, M. van Oorschot, R. J. H. L. M. van Gurp, H. Stoop, A. J. M. Gillis, C. A. de Gouveia Brazao, R. F. A. Weber, W. J. Kirkels, T. van Dijk, et al. Stem Cell Factor Receptor (c-KIT) Codon 816 Mutations Predict Development of Bilateral Testicular Germ-Cell Tumors Cancer Res., November 15, 2003; 63(22): 7674 - 7678. [Abstract] [Full Text] [PDF] |
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C. D. Mol, K. B. Lim, V. Sridhar, H. Zou, E. Y. T. Chien, B.-C. Sang, J. Nowakowski, D. B. Kassel, C. N. Cronin, and D. E. McRee Structure of a c-Kit Product Complex Reveals the Basis for Kinase Transactivation J. Biol. Chem., August 22, 2003; 278(34): 31461 - 31464. [Abstract] [Full Text] [PDF] |
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R. Shivakrupa, A. Bernstein, N. Watring, and D. Linnekin Phosphatidylinositol 3'-Kinase Is Required for Growth of Mast Cells Expressing the Kit Catalytic Domain Mutant Cancer Res., August 1, 2003; 63(15): 4412 - 4419. [Abstract] [Full Text] [PDF] |
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C. R. Antonescu, G. Sommer, L. Sarran, S. J. Tschernyavsky, E. Riedel, J. M. Woodruff, M. Robson, R. Maki, M. F. Brennan, M. Ladanyi, et al. Association of KIT Exon 9 Mutations with Nongastric Primary Site and Aggressive Behavior: KIT Mutation Analysis and Clinical Correlates of 120 Gastrointestinal Stromal Tumors Clin. Cancer Res., August 1, 2003; 9(9): 3329 - 3337. [Abstract] [Full Text] [PDF] |
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G. Sommer, V. Agosti, I. Ehlers, F. Rossi, S. Corbacioglu, J. Farkas, M. Moore, K. Manova, C. R. Antonescu, and P. Besmer Gastrointestinal stromal tumors in a mouse model by targeted mutation of the Kit receptor tyrosine kinase PNAS, May 27, 2003; 100(11): 6706 - 6711. [Abstract] [Full Text] [PDF] |
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K. Scotlandi, M. C. Manara, R. Strammiello, L. Landuzzi, S. Benini, S. Perdichizzi, M. Serra, A. Astolfi, G. Nicoletti, P.-L. Lollini, et al. c-kit Receptor Expression in Ewing's Sarcoma: Lack of Prognostic Value but Therapeutic Targeting Opportunities in Appropriate Conditions J. Clin. Oncol., May 15, 2003; 21(10): 1952 - 1960. [Abstract] [Full Text] [PDF] |
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M. C. Heinrich, C. L. Corless, A. Duensing, L. McGreevey, C.-J. Chen, N. Joseph, S. Singer, D. J. Griffith, A. Haley, A. Town, et al. PDGFRA Activating Mutations in Gastrointestinal Stromal Tumors Science, January 31, 2003; 299(5607): 708 - 710. [Abstract] [Full Text] [PDF] |
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D. Frost, J. Lasota, and M. Miettinen Gastrointestinal Stromal Tumors and Leiomyomas in the Dog: A Histopathologic, Immunohistochemical, and Molecular Genetic Study of 50 Cases Veterinary Pathology, January 1, 2003; 40(1): 42 - 54. [Abstract] [Full Text] [PDF] |
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M. J. Frost, P. T. Ferrao, T. P. Hughes, and L. K. Ashman Juxtamembrane Mutant V560GKit Is More Sensitive to Imatinib (STI571) Compared with Wild-Type c-Kit Whereas the Kinase Domain Mutant D816VKit Is Resistant Mol. Cancer Ther., October 1, 2002; 1(12): 1115 - 1124. [Abstract] [Full Text] [PDF] |
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A. V. Moses, M. A. Jarvis, C. Raggo, Y. C. Bell, R. Ruhl, B. G. M. Luukkonen, D. J. Griffith, C. L. Wait, B. J. Druker, M. C. Heinrich, et al. Kaposi's Sarcoma-Associated Herpesvirus-Induced Upregulation of the c-kit Proto-Oncogene, as Identified by Gene Expression Profiling, Is Essential for the Transformation of Endothelial Cells J. Virol., August 15, 2002; 76(16): 8383 - 8399. [Abstract] [Full Text] [PDF] |
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M. C. Heinrich, C. D. Blanke, B. J. Druker, and C. L. Corless Inhibition of KIT Tyrosine Kinase Activity: A Novel Molecular Approach to the Treatment of KIT-Positive Malignancies J. Clin. Oncol., March 15, 2002; 20(6): 1692 - 1703. [Abstract] [Full Text] [PDF] |
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S. K. Tickoo, B. Hutchinson, J. Bacik, M. Mazumdar, R. J. Motzer, D. F. Bajorin, G. J. Bosl, and V. E. Reuter Testicular Seminoma: A Clinicopathologic and Immunohistochemical Study of 105 Cases with Special Reference to Seminomas with Atypical Features International Journal of Surgical Pathology, January 1, 2002; 10(1): 23 - 32. [Abstract] [PDF] |
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B. Scappini, F. Onida, H. M. Kantarjian, L. Dong, S. Verstovsek, M. J. Keating, and M. Beran Effects of Signal Transduction Inhibitor 571 in Acute Myelogenous Leukemia Cells Clin. Cancer Res., December 1, 2001; 7(12): 3884 - 3893. [Abstract] [Full Text] [PDF] |
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B. P. Rubin, S. Singer, C. Tsao, A. Duensing, M. L. Lux, R. Ruiz, M. K. Hibbard, C.-J. Chen, S. Xiao, D. A. Tuveson, et al. KIT Activation Is a Ubiquitous Feature of Gastrointestinal Stromal Tumors Cancer Res., November 1, 2001; 61(22): 8118 - 8121. [Abstract] [Full Text] [PDF] |
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R. Chian, S. Young, A. Danilkovitch-Miagkova, L. Ronnstrand, E. Leonard, P. Ferrao, L. Ashman, and D. Linnekin Phosphatidylinositol 3 kinase contributes to the transformation of hematopoietic cells by the D816V c-Kit mutant Blood, September 1, 2001; 98(5): 1365 - 1373. [Abstract] [Full Text] [PDF] |
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Z.-Q. Ning, J. Li, and R. J. Arceci Signal transducer and activator of transcription 3 activation is required for Asp816 mutant c-Kit-mediated cytokine-independent survival and proliferation in human leukemia cells Blood, June 1, 2001; 97(11): 3559 - 3567. [Abstract] [Full Text] [PDF] |
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G. W. Krystal, S. Honsawek, D. Kiewlich, C. Liang, S. Vasile, L. Sun, G. McMahon, and K. E. Lipson Indolinone Tyrosine Kinase Inhibitors Block Kit Activation and Growth of Small Cell Lung Cancer Cells Cancer Res., May 1, 2001; 61(9): 3660 - 3668. [Abstract] [Full Text] |
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E. Buchdunger, C. L. Cioffi, N. Law, D. Stover, S. Ohno-Jones, B. J. Druker, and N. B. Lydon Abl Protein-Tyrosine Kinase Inhibitor STI571 Inhibits In Vitro Signal Transduction Mediated by c-Kit and Platelet-Derived Growth Factor Receptors J. Pharmacol. Exp. Ther., October 1, 2000; 295(1): 139 - 145. [Abstract] [Full Text] |
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J. Lasota, A. Wozniak, M. Sarlomo-Rikala, J. Rys, R. Kordek, A. Nassar, L. H. Sobin, and M. Miettinen Mutations in Exons 9 and 13 of KIT Gene Are Rare Events in Gastrointestinal Stromal Tumors : A Study of 200 Cases Am. J. Pathol., October 1, 2000; 157(4): 1091 - 1095. [Abstract] [Full Text] [PDF] |
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B. Lawrence, A. Perez-Atayde, M. K. Hibbard, B. P. Rubin, P. Dal Cin, J. L. Pinkus, G. S. Pinkus, S. Xiao, E. S. Yi, C. D. M. Fletcher, et al. TPM3-ALK and TPM4-ALK Oncogenes in Inflammatory Myofibroblastic Tumors Am. J. Pathol., August 1, 2000; 157(2): 377 - 384. [Abstract] [Full Text] [PDF] |
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M. C. Heinrich, D. J. Griffith, B. J. Druker, C. L. Wait, K. A. Ott, and A. J. Zigler Inhibition of c-kit receptor tyrosine kinase activity by STI 571, a selective tyrosine kinase inhibitor Blood, August 1, 2000; 96(3): 925 - 932. [Abstract] [Full Text] [PDF] |
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M. L. Lux, B. P. Rubin, T. L. Biase, C.-J. Chen, T. Maclure, G. Demetri, S. Xiao, S. Singer, C. D.M. Fletcher, and J. A. Fletcher KIT Extracellular and Kinase Domain Mutations in Gastrointestinal Stromal Tumors Am. J. Pathol., March 1, 2000; 156(3): 791 - 795. [Abstract] [Full Text] [PDF] |
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