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Rothenburger T, Thomas D, Schreiber Y, Wratil PR, Pflantz T, Knecht K, Digianantonio K, Temple J, Schneider C, Baldauf HM, McLaughlin KM, Rothweiler F, Bilen B, Farmand S, Bojkova D, Costa R, Ferreirós N, Geisslinger G, Oellerich T, Xiong Y, Keppler OT, Wass MN, Michaelis M, Cinatl J. Differences between intrinsic and acquired nucleoside analogue resistance in acute myeloid leukaemia cells. J Exp Clin Cancer Res 2021; 40:317. [PMID: 34641952 PMCID: PMC8507139 DOI: 10.1186/s13046-021-02093-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 09/01/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND SAMHD1 mediates resistance to anti-cancer nucleoside analogues, including cytarabine, decitabine, and nelarabine that are commonly used for the treatment of leukaemia, through cleavage of their triphosphorylated forms. Hence, SAMHD1 inhibitors are promising candidates for the sensitisation of leukaemia cells to nucleoside analogue-based therapy. Here, we investigated the effects of the cytosine analogue CNDAC, which has been proposed to be a SAMHD1 inhibitor, in the context of SAMHD1. METHODS CNDAC was tested in 13 acute myeloid leukaemia (AML) cell lines, in 26 acute lymphoblastic leukaemia (ALL) cell lines, ten AML sublines adapted to various antileukaemic drugs, 24 single cell-derived clonal AML sublines, and primary leukaemic blasts from 24 AML patients. Moreover, 24 CNDAC-resistant sublines of the AML cell lines HL-60 and PL-21 were established. The SAMHD1 gene was disrupted using CRISPR/Cas9 and SAMHD1 depleted using RNAi, and the viral Vpx protein. Forced DCK expression was achieved by lentiviral transduction. SAMHD1 promoter methylation was determined by PCR after treatment of genomic DNA with the methylation-sensitive HpaII endonuclease. Nucleoside (analogue) triphosphate levels were determined by LC-MS/MS. CNDAC interaction with SAMHD1 was analysed by an enzymatic assay and by crystallisation. RESULTS Although the cytosine analogue CNDAC was anticipated to inhibit SAMHD1, SAMHD1 mediated intrinsic CNDAC resistance in leukaemia cells. Accordingly, SAMHD1 depletion increased CNDAC triphosphate (CNDAC-TP) levels and CNDAC toxicity. Enzymatic assays and crystallisation studies confirmed CNDAC-TP to be a SAMHD1 substrate. In 24 CNDAC-adapted acute myeloid leukaemia (AML) sublines, resistance was driven by DCK (catalyses initial nucleoside phosphorylation) loss. CNDAC-adapted sublines displayed cross-resistance only to other DCK substrates (e.g. cytarabine, decitabine). Cell lines adapted to drugs not affected by DCK or SAMHD1 remained CNDAC sensitive. In cytarabine-adapted AML cells, increased SAMHD1 and reduced DCK levels contributed to cytarabine and CNDAC resistance. CONCLUSION Intrinsic and acquired resistance to CNDAC and related nucleoside analogues are driven by different mechanisms. The lack of cross-resistance between SAMHD1/ DCK substrates and non-substrates provides scope for next-line therapies after treatment failure.
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Affiliation(s)
- Tamara Rothenburger
- Institute for Medical Virology, Goethe-University, Frankfurt am Main, Germany
- Faculty of Biological Sciences, Goethe-University, Frankfurt am Main, Germany
| | - Dominique Thomas
- Pharmazentrum frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe University of Frankfurt, Frankfurt, Germany
| | - Yannick Schreiber
- Pharmazentrum frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe University of Frankfurt, Frankfurt, Germany
| | - Paul R Wratil
- Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
- German Center for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Tamara Pflantz
- Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
- German Center for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Kirsten Knecht
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA
| | - Katie Digianantonio
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA
| | - Joshua Temple
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA
| | - Constanze Schneider
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Hanna-Mari Baldauf
- Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
| | | | - Florian Rothweiler
- Institute for Medical Virology, Goethe-University, Frankfurt am Main, Germany
| | - Berna Bilen
- Faculty of Biological Sciences, Goethe-University, Frankfurt am Main, Germany
| | - Samira Farmand
- Faculty of Biological Sciences, Goethe-University, Frankfurt am Main, Germany
| | - Denisa Bojkova
- Institute for Medical Virology, Goethe-University, Frankfurt am Main, Germany
| | - Rui Costa
- Institute for Medical Virology, Goethe-University, Frankfurt am Main, Germany
| | - Nerea Ferreirós
- Pharmazentrum frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe University of Frankfurt, Frankfurt, Germany
| | - Gerd Geisslinger
- Pharmazentrum frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe University of Frankfurt, Frankfurt, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Project group Translational Medicine and Pharmacology (TMP), Frankfurt am Main, Germany
| | - Thomas Oellerich
- Department of Hematology/Oncology, Goethe-University, Frankfurt am Main, Germany
- Molecular Diagnostics Unit, Frankfurt Cancer Institute, Frankfurt am Main, Germany
- German Cancer Consortium/German Cancer Research Center, Heidelberg, Germany
| | - Yong Xiong
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA
| | - Oliver T Keppler
- Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich, Germany
- German Center for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Mark N Wass
- School of Biosciences, University of Kent, Canterbury, UK
| | | | - Jindrich Cinatl
- Institute for Medical Virology, Goethe-University, Frankfurt am Main, Germany.
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Geßner A, Koch B, Klann K, Fuhrmann DC, Farmand S, Schubert R, Münch C, Geiger H, Baer PC. Characterization of Extracellular Vesicles from Preconditioned Human Adipose-Derived Stromal/Stem Cells. Int J Mol Sci 2021; 22:ijms22062873. [PMID: 33808970 PMCID: PMC7999156 DOI: 10.3390/ijms22062873] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 12/14/2022] Open
Abstract
Cell-free therapy using extracellular vesicles (EVs) from adipose-derived mesenchymal stromal/stem cells (ASCs) seems to be a safe and effective therapeutic option to support tissue and organ regeneration. The application of EVs requires particles with a maximum regenerative capability and hypoxic culture conditions as an in vitro preconditioning regimen has been shown to alter the molecular composition of released EVs. Nevertheless, the EV cargo after hypoxic preconditioning has not yet been comprehensively examined. The aim of the present study was the characterization of EVs from hypoxic preconditioned ASCs. We investigated the EV proteome and their effects on renal tubular epithelial cells in vitro. While no effect of hypoxia was observed on the number of released EVs and their protein content, the cargo of the proteins was altered. Proteomic analysis showed 41 increased or decreased proteins, 11 in a statistically significant manner. Furthermore, the uptake of EVs in epithelial cells and a positive effect on oxidative stress in vitro were observed. In conclusion, culture of ASCs under hypoxic conditions was demonstrated to be a promising in vitro preconditioning regimen, which alters the protein cargo and increases the anti-oxidative potential of EVs. These properties may provide new potential therapeutic options for regenerative medicine.
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Affiliation(s)
- Alec Geßner
- Division of Nephrology, Department of Internal Medicine III, University Hospital, Goethe-University, 60596 Frankfurt/M., Germany; (A.G.); (B.K.); (S.F.); (H.G.)
| | - Benjamin Koch
- Division of Nephrology, Department of Internal Medicine III, University Hospital, Goethe-University, 60596 Frankfurt/M., Germany; (A.G.); (B.K.); (S.F.); (H.G.)
| | - Kevin Klann
- Institute of Biochemistry II, Faculty of Medicine, Goethe-University, 60596 Frankfurt/M., Germany; (K.K.); (C.M.)
| | - Dominik C. Fuhrmann
- Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany;
| | - Samira Farmand
- Division of Nephrology, Department of Internal Medicine III, University Hospital, Goethe-University, 60596 Frankfurt/M., Germany; (A.G.); (B.K.); (S.F.); (H.G.)
| | - Ralf Schubert
- Division of Allergology, Pneumology and Cystic Fibrosis, Department for Children and Adolescents, University Hospital, Goethe-University, 60596 Frankfurt/M., Germany;
| | - Christian Münch
- Institute of Biochemistry II, Faculty of Medicine, Goethe-University, 60596 Frankfurt/M., Germany; (K.K.); (C.M.)
| | - Helmut Geiger
- Division of Nephrology, Department of Internal Medicine III, University Hospital, Goethe-University, 60596 Frankfurt/M., Germany; (A.G.); (B.K.); (S.F.); (H.G.)
| | - Patrick C. Baer
- Division of Nephrology, Department of Internal Medicine III, University Hospital, Goethe-University, 60596 Frankfurt/M., Germany; (A.G.); (B.K.); (S.F.); (H.G.)
- Correspondence: ; Tel.: +49-6301-5554
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