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Shannan B, Matschke J, Chauvistré H, Vogel F, Klein D, Meier F, Westphal D, Bruns J, Rauschenberg R, Utikal J, Forschner A, Berking C, Terheyden P, Dabrowski E, Gutzmer R, Rafei-Shamsabadi D, Meiss F, Heinzerling L, Zimmer L, Livingstone E, Váraljai R, Hoewner A, Horn S, Klode J, Stuschke M, Scheffler B, Marchetto A, Sannino G, Grünewald TGP, Schadendorf D, Jendrossek V, Roesch A. Sequence-dependent cross-resistance of combined radiotherapy plus BRAF V600E inhibition in melanoma. Eur J Cancer 2019; 109:137-153. [PMID: 30721788 DOI: 10.1016/j.ejca.2018.12.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/22/2018] [Accepted: 12/29/2018] [Indexed: 01/04/2023]
Abstract
INTRODUCTION Treatment of patients with metastatic melanoma is hampered by drug-resistance and often requires combination with radiotherapy as last-resort option. However, also after radiotherapy, clinical relapses are common. METHODS & RESULTS Our preclinical models indicated a higher rate of tumour relapse when melanoma cells were first treated with BRAFV600E inhibition (BRAFi) followed by radiotherapy as compared to the reverse sequence. Accordingly, retrospective follow-up data from 65 stage-IV melanoma patients with irradiated melanoma brain metastases confirmed a shortened duration of local response of mitogen-activated protein kinase (MAPK)-inhibitor-pretreated compared with MAPK-inhibitor-naïve intracranial metastases. On the molecular level, we identified JARID1B/KDM5B as a cellular marker for cross-resistance between BRAFi and radiotherapy. JARID1Bhigh cells appeared more frequently under upfront BRAFi as compared with upfront radiation. JARID1B favours cell survival by transcriptional regulation of genes controlling cell cycle, DNA repair and cell death. CONCLUSION The level of cross-resistance between combined MAPK inhibition and radiotherapy is dependent on the treatment sequence. JARID1B may represent a novel therapy-overarching resistance marker.
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Affiliation(s)
- B Shannan
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - J Matschke
- Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, Medical School, Germany
| | - H Chauvistré
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - F Vogel
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - D Klein
- Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, Medical School, Germany
| | - F Meier
- Skin Cancer Center National Center for Tumor Diseases, Department of Dermatology, Medical Faculty and University Hospital Carl Gustav Carus, TU Dresden, Germany
| | - D Westphal
- Skin Cancer Center National Center for Tumor Diseases, Department of Dermatology, Medical Faculty and University Hospital Carl Gustav Carus, TU Dresden, Germany
| | - J Bruns
- Skin Cancer Center National Center for Tumor Diseases, Department of Dermatology, Medical Faculty and University Hospital Carl Gustav Carus, TU Dresden, Germany
| | - R Rauschenberg
- Skin Cancer Center National Center for Tumor Diseases, Department of Dermatology, Medical Faculty and University Hospital Carl Gustav Carus, TU Dresden, Germany
| | - J Utikal
- Skin Cancer Unit German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Dermatology, Venereology and Allergology University Medical Center Mannheim, Heidelberg University, Mannheim, Germany
| | - A Forschner
- Department of Dermatology, Center for Dermatooncology, University Hospital Tübingen, Germany
| | - C Berking
- Department of Dermatology and Allergy, University Hospital of Munich, Munich, Germany
| | - P Terheyden
- Department of Dermatology, University of Luebeck, Luebeck, Germany
| | - E Dabrowski
- Department of Dermatology, Klinikum Ludwigshafen, Ludwigshafen, Germany
| | - R Gutzmer
- Skin Cancer Centre, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - D Rafei-Shamsabadi
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - F Meiss
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - L Heinzerling
- Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - L Zimmer
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - Elisabeth Livingstone
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - Renáta Váraljai
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - A Hoewner
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - S Horn
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - J Klode
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - M Stuschke
- Department of Radiotherapy, West German Cancer Center, University Hospital, University of Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Essen, Germany
| | - B Scheffler
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - A Marchetto
- Max-Eder Research Group for Pediatric Sarcoma Biology, Institute of Pathology, Faculty of Medicine, LMU Munich, Germany
| | - G Sannino
- Max-Eder Research Group for Pediatric Sarcoma Biology, Institute of Pathology, Faculty of Medicine, LMU Munich, Germany
| | - T G P Grünewald
- Max-Eder Research Group for Pediatric Sarcoma Biology, Institute of Pathology, Faculty of Medicine, LMU Munich, Germany; German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - D Schadendorf
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - V Jendrossek
- Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, Medical School, Germany
| | - A Roesch
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany.
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Genetic inactivation or pharmacological inhibition of Pdk1 delays development and inhibits metastasis of Braf(V600E)::Pten(-/-) melanoma. Oncogene 2013; 33:4330-9. [PMID: 24037523 PMCID: PMC3955742 DOI: 10.1038/onc.2013.383] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 07/18/2013] [Accepted: 07/26/2013] [Indexed: 12/13/2022]
Abstract
Phosphoinositide-dependent kinase-1 (PDK1) is a serine/threonine protein kinase that phosphorylates members of the conserved AGC kinase superfamily, including AKT and protein kinase C (PKC), and is implicated in important cellular processes including survival, metabolism and tumorigenesis. In large cohorts of nevi and melanoma samples, PDK1 expression was significantly higher in primary melanoma, compared with nevi, and was further increased in metastatic melanoma. PDK1 expression suffices for its activity, owing to auto-activation, or elevated phosphorylation by phosphoinositide 3'-OH-kinase (PI3K). Selective inactivation of Pdk1 in the melanocytes of Braf(V600E)::Pten(-/-) or Braf(V600E)::Cdkn2a(-/-)::Pten(-/-) mice delayed the development of pigmented lesions and melanoma induced by systemic or local administration of 4-hydroxytamoxifen. Melanoma invasion and metastasis were significantly reduced or completely prevented by Pdk1 deletion. Administration of the PDK1 inhibitor GSK2334470 (PDKi) effectively delayed melanomagenesis and metastasis in Braf(V600E)::Pten(-/-) mice. Pdk1(-/-) melanomas exhibit a marked decrease in the activity of AKT, P70S6K and PKC. Notably, PDKi was as effective in inhibiting AGC kinases and colony forming efficiency of melanoma with Pten wild-type (WT) genotypes. Gene expression analyses identified Pdk1-dependent changes in FOXO3a-regulated genes, and inhibition of FOXO3a restored proliferation and colony formation of Pdk1(-/-) melanoma cells. Our studies provide direct genetic evidence for the importance of PDK1, in part through FOXO3a-dependent pathway, in melanoma development and progression.
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