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Parreno V, Loubiere V, Schuettengruber B, Fritsch L, Rawal CC, Erokhin M, Győrffy B, Normanno D, Di Stefano M, Moreaux J, Butova NL, Chiolo I, Chetverina D, Martinez AM, Cavalli G. Transient loss of Polycomb components induces an epigenetic cancer fate. Nature 2024; 629:688-696. [PMID: 38658752 PMCID: PMC11096130 DOI: 10.1038/s41586-024-07328-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/15/2024] [Indexed: 04/26/2024]
Abstract
Although cancer initiation and progression are generally associated with the accumulation of somatic mutations1,2, substantial epigenomic alterations underlie many aspects of tumorigenesis and cancer susceptibility3-6, suggesting that genetic mechanisms might not be the only drivers of malignant transformation7. However, whether purely non-genetic mechanisms are sufficient to initiate tumorigenesis irrespective of mutations has been unknown. Here, we show that a transient perturbation of transcriptional silencing mediated by Polycomb group proteins is sufficient to induce an irreversible switch to a cancer cell fate in Drosophila. This is linked to the irreversible derepression of genes that can drive tumorigenesis, including members of the JAK-STAT signalling pathway and zfh1, the fly homologue of the ZEB1 oncogene, whose aberrant activation is required for Polycomb perturbation-induced tumorigenesis. These data show that a reversible depletion of Polycomb proteins can induce cancer in the absence of driver mutations, suggesting that tumours can emerge through epigenetic dysregulation leading to inheritance of altered cell fates.
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Affiliation(s)
- V Parreno
- Institute of Human Genetics, CNRS, University of Montpellier, Montpellier, France
| | - V Loubiere
- Institute of Human Genetics, CNRS, University of Montpellier, Montpellier, France
- Research Institute of Molecular Pathology, Vienna BioCenter, Vienna, Austria
| | - B Schuettengruber
- Institute of Human Genetics, CNRS, University of Montpellier, Montpellier, France
| | - L Fritsch
- Institute of Human Genetics, CNRS, University of Montpellier, Montpellier, France
| | - C C Rawal
- University of Southern California, Los Angeles, CA, USA
| | - M Erokhin
- Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia
| | - B Győrffy
- Semmelweis University Department of Bioinformatics, Budapest, Hungary
- Department of Biophysics, Medical School, University of Pécs, Pécs, Hungary
| | - D Normanno
- Institute of Human Genetics, CNRS, University of Montpellier, Montpellier, France
| | - M Di Stefano
- Institute of Human Genetics, CNRS, University of Montpellier, Montpellier, France
| | - J Moreaux
- Institute of Human Genetics, CNRS, University of Montpellier, Montpellier, France
- Department of Biological Hematology, CHU Montpellier, Montpellier, France
- UFR Medicine, University of Montpellier, Montpellier, France
| | - N L Butova
- University of Southern California, Los Angeles, CA, USA
| | - I Chiolo
- University of Southern California, Los Angeles, CA, USA
| | - D Chetverina
- Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia
| | - A-M Martinez
- Institute of Human Genetics, CNRS, University of Montpellier, Montpellier, France.
| | - G Cavalli
- Institute of Human Genetics, CNRS, University of Montpellier, Montpellier, France.
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2
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Gallo K, Goede A, Eckert OA, Gohlke BO, Preissner R. Withdrawn 2.0-update on withdrawn drugs with pharmacovigilance data. Nucleic Acids Res 2024; 52:D1503-D1507. [PMID: 37971295 PMCID: PMC10767915 DOI: 10.1093/nar/gkad1017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/17/2023] [Accepted: 10/27/2023] [Indexed: 11/19/2023] Open
Abstract
One challenge in the development of novel drugs is their interaction with potential off-targets, which can cause unintended side-effects, that can lead to the subsequent withdrawal of approved drugs. At the same time, these off-targets may also present a chance for the repositioning of withdrawn drugs for new indications, which are potentially rare or more severe than the original indication and where certain adverse reactions may be avoidable or tolerable. To enable further insights into this topic, we updated our database Withdrawn by adding pharmacovigilance data from the FDA Adverse Event Reporting System (FAERS), as well as mechanism of action and human disease pathway prediction features for drugs that are or were temporarily withdrawn or discontinued in at least one country. As withdrawal data are still spread over dozens of national websites, we are continuously updating our lists of discontinued or withdrawn drugs and related (off-)targets. Furthermore, new systematic entry points for browsing the data, such as an ATC tree, were added, increasing the accessibility of the database in a user-friendly way. Withdrawn 2.0 is publicly available without the need for registration or login at https://bioinformatics.charite.de/withdrawn_3/index.php.
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Affiliation(s)
- Kathleen Gallo
- Charité - Universitätsmedizin Berlin, Institute of Physiology and GB IT, Science IT, Corporate Member of Freie Universität Berlin, Berlin Institute of Health, Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Andrean Goede
- Charité - Universitätsmedizin Berlin, Institute of Physiology and GB IT, Science IT, Corporate Member of Freie Universität Berlin, Berlin Institute of Health, Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Oliver-Andreas Eckert
- Charité - Universitätsmedizin Berlin, Institute of Physiology and GB IT, Science IT, Corporate Member of Freie Universität Berlin, Berlin Institute of Health, Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Bjoern-Oliver Gohlke
- Charité - Universitätsmedizin Berlin, Institute of Physiology and GB IT, Science IT, Corporate Member of Freie Universität Berlin, Berlin Institute of Health, Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Robert Preissner
- Charité - Universitätsmedizin Berlin, Institute of Physiology and GB IT, Science IT, Corporate Member of Freie Universität Berlin, Berlin Institute of Health, Humboldt-Universität zu Berlin, 10117 Berlin, Germany
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3
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Bruyer A, Dutrieux L, de Boussac H, Martin T, Chemlal D, Robert N, Requirand G, Cartron G, Vincent L, Herbaux C, Lutzmann M, Bret C, Pasero P, Moreaux J, Ovejero S. Combined inhibition of Wee1 and Chk1 as a therapeutic strategy in multiple myeloma. Front Oncol 2023; 13:1271847. [PMID: 38125947 PMCID: PMC10730928 DOI: 10.3389/fonc.2023.1271847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023] Open
Abstract
Multiple myeloma (MM) is a hematological malignancy characterized by an abnormal clonal proliferation of malignant plasma cells. Despite the introduction of novel agents that have significantly improved clinical outcome, most patients relapse and develop drug resistance. MM is characterized by genomic instability and a high level of replicative stress. In response to replicative and DNA damage stress, MM cells activate various DNA damage signaling pathways. In this study, we reported that high CHK1 and WEE1 expression is associated with poor outcome in independent cohorts of MM patients treated with high dose melphalan chemotherapy or anti-CD38 immunotherapy. Combined targeting of Chk1 and Wee1 demonstrates synergistic toxicities on MM cells and was associated with higher DNA double-strand break induction, as evidenced by an increased percentage of γH2AX positive cells subsequently leading to apoptosis. The therapeutic interest of Chk1/Wee1 inhibitors' combination was validated on primary MM cells of patients. The toxicity was specific of MM cells since normal bone marrow cells were not significantly affected. Using deconvolution approach, MM patients with high CHK1 expression exhibited a significant lower percentage of NK cells whereas patients with high WEE1 expression displayed a significant higher percentage of regulatory T cells in the bone marrow. These data emphasize that MM cell adaptation to replicative stress through Wee1 and Chk1 upregulation may decrease the activation of the cell-intrinsic innate immune response. Our study suggests that association of Chk1 and Wee1 inhibitors may represent a promising therapeutic approach in high-risk MM patients characterized by high CHK1 and WEE1 expression.
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Affiliation(s)
| | - Laure Dutrieux
- Institute of Human Genetics, UMR CNRS-UM 9002, Montpellier, France
| | | | - Thibaut Martin
- Institute of Human Genetics, UMR CNRS-UM 9002, Montpellier, France
| | - Djamila Chemlal
- Diag2Tec, Montpellier, France
- Institute of Human Genetics, UMR CNRS-UM 9002, Montpellier, France
| | - Nicolas Robert
- Department of Biological Hematology, CHU Montpellier, Montpellier, France
| | - Guilhem Requirand
- Department of Biological Hematology, CHU Montpellier, Montpellier, France
| | - Guillaume Cartron
- Department of Clinical Hematology, CHU Montpellier, Montpellier, France
- University of Montpellier, UFR Medicine, Montpellier, France
| | - Laure Vincent
- Department of Clinical Hematology, CHU Montpellier, Montpellier, France
| | - Charles Herbaux
- Institute of Human Genetics, UMR CNRS-UM 9002, Montpellier, France
- Department of Clinical Hematology, CHU Montpellier, Montpellier, France
- University of Montpellier, UFR Medicine, Montpellier, France
| | - Malik Lutzmann
- Institute of Human Genetics, UMR CNRS-UM 9002, Montpellier, France
| | - Caroline Bret
- Institute of Human Genetics, UMR CNRS-UM 9002, Montpellier, France
- Department of Biological Hematology, CHU Montpellier, Montpellier, France
- University of Montpellier, UFR Medicine, Montpellier, France
| | - Philippe Pasero
- Institute of Human Genetics, UMR CNRS-UM 9002, Montpellier, France
| | - Jérôme Moreaux
- Institute of Human Genetics, UMR CNRS-UM 9002, Montpellier, France
- Department of Biological Hematology, CHU Montpellier, Montpellier, France
- University of Montpellier, UFR Medicine, Montpellier, France
- Institut Universitaire de France (IUF), Paris, France
| | - Sara Ovejero
- Institute of Human Genetics, UMR CNRS-UM 9002, Montpellier, France
- Department of Biological Hematology, CHU Montpellier, Montpellier, France
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Huang M, Chen L, Guo Y, Ruan Y, Xu H. PARP1 negatively regulates transcription of BLM through its interaction with HSP90AB1 in prostate cancer. J Transl Med 2023; 21:445. [PMID: 37415147 PMCID: PMC10324254 DOI: 10.1186/s12967-023-04288-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 06/19/2023] [Indexed: 07/08/2023] Open
Abstract
BACKGROUND Prostate cancer (PCa) is a prevalent malignant disease affecting a significant number of males globally. Elevated expression of the Bloom's syndrome protein (BLM) helicase has emerged as a promising cancer biomarker, being associated with the onset and progression of PCa. Nevertheless, the precise molecular mechanisms governing BLM regulation in PCa remain elusive. METHODS The expression of BLM in human specimens was analyzed using immnohistochemistry (IHC). A 5'-biotin-labeled DNA probe containing the promoter region of BLM was synthesized to pull down BLM promoter-binding proteins. Functional studies were conducted using a range of assays, including CCK-8, EdU incorporation, clone formation, wound scratch, transwell migration, alkaline comet assay, xenograft mouse model, and H&E staining. Mechanistic studies were carried out using various techniques, including streptavidin-agarose-mediated DNA pull-down, mass spectrometry (MS), immunofluorescence (IF), dual luciferase reporter assay system, RT-qPCR, ChIP-qPCR, co-immunoprecipitation (co-IP), and western blot. RESULTS The results revealed significant upregulation of BLM in human PCa tissues, and its overexpression was associated with an unfavorable prognosis in PCa patients. Increased BLM expression showed significant correlations with advanced clinical stage (P = 0.022) and Gleason grade (P = 0.006). In vitro experiments demonstrated that BLM knockdown exerted inhibitory effects on cell proliferation, clone formation, invasion, and migration. Furthermore, PARP1 (poly (ADP-ribose) polymerase 1) was identified as a BLM promoter-binding protein. Further investigations revealed that the downregulation of PARP1 led to increased BLM promoter activity and expression, while the overexpression of PARP1 exerted opposite effects. Through mechanistic studies, we elucidated that the interaction between PARP1 and HSP90AB1 (heat shock protein alpha family class B) enhanced the transcriptional regulation of BLM by counteracting the inhibitory influence of PARP1 on BLM. Furthermore, the combination treatment of olaparib with ML216 demonstrated enhanced inhibitory effects on cell proliferation, clone formation, invasion, and migration. It also induced more severe DNA damage in vitro and exhibited superior inhibitory effects on the proliferation of PC3 xenograft tumors in vivo. CONCLUSIONS The results of this study underscore the significance of BLM overexpression as a prognostic biomarker for PCa, while also demonstrating the negative regulatory impact of PARP1 on BLM transcription. The concurrent targeting of BLM and PARP1 emerges as a promising therapeutic approach for PCa treatment, holding potential clinical significance.
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Affiliation(s)
- Mengqiu Huang
- Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang, 550025, Guizhou, China
- College of Animal Science, Guizhou University, Guiyang, 550025, Guizhou, China
| | - Lin Chen
- Department of Ophthalmology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Yingchu Guo
- College of Animal Science, Guizhou University, Guiyang, 550025, Guizhou, China
- Guizhou University school of Medicine, Guizhou University, Guiyang, 550025, Guizhou, China
| | - Yong Ruan
- College of Animal Science, Guizhou University, Guiyang, 550025, Guizhou, China
- Guizhou University school of Medicine, Guizhou University, Guiyang, 550025, Guizhou, China
| | - Houqiang Xu
- Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region (Ministry of Education), College of Life Sciences, Guizhou University, Guiyang, 550025, Guizhou, China.
- College of Animal Science, Guizhou University, Guiyang, 550025, Guizhou, China.
- Guizhou University school of Medicine, Guizhou University, Guiyang, 550025, Guizhou, China.
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