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Dill V, Kauschinger J, Hauch RT, Buschhorn L, Odinius TO, Müller-Thomas C, Mishra R, Kyncl MC, Schmidt B, Prodinger PM, Hempel D, Bellos F, Höllein A, Kern W, Haferlach T, Slotta-Huspenina J, Bassermann F, Peschel C, Götze KS, Waizenegger IC, Höckendorf U, Jost PJ, Jilg S. Inhibition of PLK1 by capped-dose volasertib exerts substantial efficacy in MDS and sAML while sparing healthy haematopoiesis. Eur J Haematol 2020; 104:125-137. [PMID: 31758597 DOI: 10.1111/ejh.13354] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 11/06/2019] [Accepted: 11/08/2019] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Targeting the cell cycle machinery represents a rational therapeutic approach in myelodysplastic syndromes (MDS) and secondary acute myeloid leukemia (sAML). Despite substantial response rates, clinical use of the PLK inhibitor volasertib has been hampered by elevated side effects such as neutropenia and infections. OBJECTIVES The primary objective was to analyse whether a reduced dose of volasertib was able to limit toxic effects on the healthy haematopoiesis while retaining its therapeutic effect. METHODS Bone marrow mononuclear cells (BMMNCs) of patients with MDS/sAML (n = 73) and healthy controls (n = 28) were treated with volasertib (1 μM to 1 nM) or vehicle control. Short-term viability analysis was performed by flow cytometry after 72 hours. For long-term viability analysis, colony-forming capacity was assessed after 14 days. Protein expression of RIPK3 and MCL-1 was quantified via flow cytometry. RESULTS Reduced dose levels of volasertib retained high cell death-inducing efficacy in primary human stem and progenitor cells of MDS/sAML patients without affecting healthy haematopoiesis in vitro. Interestingly, volasertib reduced colony-forming capacity and cell survival independent of clinical stage or mutational status. CONCLUSIONS Volasertib offers a promising therapeutic approach in patients with adverse prognostic profile. RIPK3 and MCL-1 might be potential biomarkers for sensitivity to volasertib treatment.
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Affiliation(s)
- Veronika Dill
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Johanna Kauschinger
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Richard T Hauch
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Lars Buschhorn
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Timo O Odinius
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Catharina Müller-Thomas
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Ritu Mishra
- Institute of Clinical Chemistry and Pathobiochemistry, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Center for Translational Cancer Research (TranslaTUM), Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Michele C Kyncl
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | | | - Peter M Prodinger
- Department of Orthopedic Surgery, Klinikum rechts der Isar, Technische Universität München, Germany
| | - Dirk Hempel
- Onkologiezentrum Donauwörth, Donauworth, Germany
| | | | | | | | | | - Julia Slotta-Huspenina
- Institute of Pathology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Florian Bassermann
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Center for Translational Cancer Research (TranslaTUM), Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- German Cancer Consortium (DKTK), DKFZ, Heidelberg, Germany
| | - Christian Peschel
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Katharina S Götze
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | | | - Ulrike Höckendorf
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Philipp J Jost
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Center for Translational Cancer Research (TranslaTUM), Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- German Cancer Consortium (DKTK), DKFZ, Heidelberg, Germany
| | - Stefanie Jilg
- Medical Department III for Haematology and Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
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