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KITD816V induces SR...
KITD816V induces SRC-mediated tyrosine phosphorylation of MITF and altered transcription program in melanoma
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- Phung, Bengt (author)
- Lund University,Lunds universitet,Avdelningen för translationell cancerforskning,Institutionen för laboratoriemedicin,Medicinska fakulteten,Melanoma Genomics,Forskargrupper vid Lunds universitet,Division of Translational Cancer Research,Department of Laboratory Medicine,Faculty of Medicine,Lund University Research Groups,Skåne University Hospital
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- Kazi, Julhash U. (author)
- Lund University,Lunds universitet,Avdelningen för translationell cancerforskning,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Translational Cancer Research,Department of Laboratory Medicine,Faculty of Medicine,Skåne University Hospital
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- Lundby, Alicia (author)
- University of Copenhagen
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- Bergsteinsdottir, Kristin (author)
- University of Iceland
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- Sun, Jianmin (author)
- Lund University,Lunds universitet,Avdelningen för translationell cancerforskning,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Translational Cancer Research,Department of Laboratory Medicine,Faculty of Medicine,Skåne University Hospital
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- Goding, Colin R (author)
- University of Oxford
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- Jonsson, Goran (author)
- Lund University,Lunds universitet,Melanoma Genomics,Forskargrupper vid Lunds universitet,Lund University Research Groups
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- Olsen, Jesper V (author)
- University of Copenhagen
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- Steingrímsson, Eiríkur (author)
- University of Iceland
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- Ronnstrand, Lars (author)
- Lund University,Lunds universitet,Avdelningen för translationell cancerforskning,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Translational Cancer Research,Department of Laboratory Medicine,Faculty of Medicine,Skåne University Hospital
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(creator_code:org_t)
- 2017
- 2017
- English 10 s.
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In: Molecular Cancer Research. - 1541-7786. ; 15:9, s. 1265-1274
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Abstract
Subject headings
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- The oncogenic D816V mutation of the KIT receptor is well characterized in systemic mastocytosis and acute myeloid leukemia. Although KITD816V has been found in melanoma, its function and involvement in this malignancy is not understood. Here we show that KITD816V induces tyrosine phosphorylation of MITF through a triple protein complex formation between KIT, MITF, and SRC family kinases. In turn, phosphorylated MITF activates target genes that are involved in melanoma proliferation, cellcycle progression, suppression of senescence, survival, and invasion. By blocking the triple protein complex formation, thus preventing MITF phosphorylation, the cells became hypersensitive to SRC inhibitors. We have therefore delineated a mechanism behind the oncogenic effects of KITD816V in melanoma and provided a rationale for the heightened SRC inhibitor sensitivity in KITD816V transformed cells. Implications: This study demonstrates that an oncogenic tyrosine kinase mutant, KITD816V, can alter the transcriptional program of the transcription factor MITF in melanoma.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
Keyword
- melanoma
- KITD816V
- SRC-Mediated Tyrosine Phosphorylatio
- MITF
Publication and Content Type
- art (subject category)
- ref (subject category)
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