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Zaman N, Kushwah AS, Badriprasad A, Chakraborty G. Unravelling the molecular basis of PARP inhibitor resistance in prostate cancer with homologous recombination repair deficiency. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2024; 389:257-301. [PMID: 39396849 DOI: 10.1016/bs.ircmb.2024.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2024]
Abstract
Prostate cancer is a disease with heterogeneous characteristics, making its treatability and curability dependent on the cancer's stage. While prostate cancer is often indolent, some cases can be aggressive and evolve into metastatic castration-resistant prostate cancer (mCRPC), which is lethal. A significant subset of individuals with mCRPC exhibit germline and somatic variants in components of the DNA damage repair (DDR) pathway. Recently, PARP inhibitors (PARPi) have shown promise in treating mCRPC patients who carry deleterious alterations in BRCA2 and 13 other DDR genes that are important for the homologous recombination repair (HRR) pathway. These inhibitors function by trapping PARP, resulting in impaired PARP activity and increased DNA damage, ultimately leading to cell death through synthetic lethality. However, the response to these inhibitors only lasts for 3-4 months, after which the cancer becomes PARPi resistant. Cancer cells can develop resistance to PARPi through numerous mechanisms, such as secondary reversion mutations in DNA repair pathway genes, heightened drug efflux, loss of PARP expression, HRR reactivation, replication fork stability, and upregulation of Wnt/Catenin and ABCB1 pathways. Overcoming PARPi resistance is a critical and complex process, and there are two possible ways to sensitize the resistance. The first approach is to potentiate the PARPi agents through chemo/radiotherapy and combination therapy, while the second approach entails targeting different signaling pathways. This review article highlights the latest evidence on the resistance mechanism of PARPi in lethal prostate cancer and discusses additional therapeutic opportunities available for prostate cancer patients with DDR gene alterations who do not respond to PARPi.
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Affiliation(s)
- Nabila Zaman
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Atar Singh Kushwah
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Anagha Badriprasad
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Goutam Chakraborty
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
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Turinetto M, Ricotti A, Marchetti C, Pisano C, Zamagni C, Cassani C, Malaguti P, Baldoni A, Scollo P, Scandurra G, Parisi A, Artioli G, Palaia I, Vertechy L, Bergamini A, Picardo E, Tuninetti V, Scotto G, Scambia G, Pignata S, Valabrega G. MITO39: Efficacy and Tolerability of Pegylated Liposomal Doxorubicin (PLD)-Trabectedin in the Treatment of Relapsed Ovarian Cancer after Maintenance Therapy with PARP Inhibitors-A Multicenter Italian Trial in Ovarian Cancer Observational Case-Control Study. Cancers (Basel) 2023; 16:41. [PMID: 38201470 PMCID: PMC10778130 DOI: 10.3390/cancers16010041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/24/2023] [Accepted: 12/11/2023] [Indexed: 01/12/2024] Open
Abstract
OBJECTIVE While PLD-Trabectedin is an approved treatment for relapsed platinum-sensitive ovarian cancer, its efficacy and tolerability has so far not been tested extensively in patients who progress after poly ADP-ribose polymerase inhibitor (PARPi) treatment. METHODOLOGY This multicenter, retrospective analysis had the objective of comparing patients receiving PLD-Trabectedin after being treated with PARP-I (cases) with PARPi-naïve patients. Descriptive and survival analyses were performed for each group. RESULTS Data from 166 patients were collected, composed of 109 cases and 57 controls. In total, 135 patients were included in our analyses, composing 46 controls and 89 cases. The median PFS was 11 months (95% IC 10-12) in the control group vs. 8 months (95% IC 6-9) in the case group (p value 0.0017). The clinical benefit rate was evaluated, with an HR for progression of 2.55 (1.28-5.06) for the case group (p value 0.008), persisting when adjusted for BRCA and line with treatment. We compared hematological toxicity, gastro-intestinal toxicity, hand-foot syndrome (HFS), fatigue, and liver toxicity, and no statistically significant disparity was noted, except for HFS with a p value of 0.006. The distribution of G3 and G4 toxicities was also equally represented. CONCLUSION The MITO39 study showed a statistically significant difference in terms of PFS, suggesting that previous exposure to PARPi might inhibit the efficacy of PLD-Trabectedin. Regarding tolerability, no remarkable disparity was noted; PLD-Trabectedin was confirmed to be a well-tolerated scheme in both groups. To our knowledge, these are the first data regarding this topic, which we deem to be of great relevance in the current landscape.
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Affiliation(s)
| | - Andrea Ricotti
- Clinical Trial, Ordine Mauriziano Hospital, 10128 Turin, Italy;
| | - Claudia Marchetti
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; (C.M.); (L.V.); (G.S.)
| | - Carmela Pisano
- Department of Urology and Gynecology, National Cancer Institute IRCCS Fondazione G. Pascale, 80131 Naples, Italy; (C.P.); (S.P.)
| | - Claudio Zamagni
- Addarii Medical Oncology, Istituto di Ricerca e Cura a Carattere Scientifico (IRCCS), Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy;
| | - Chiara Cassani
- Unit of Obstetrics and Gynecology, IRCCS Matteo Foundation, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy;
| | - Paola Malaguti
- Medical Oncology 1, Regina Elena National Cancer Institute–IRCCS, 00144 Rome, Italy;
| | - Alessandra Baldoni
- Oncology and Hematology Department, Mirano AULSS3 Serenissima, 30035 Mirano, Italy;
| | - Paolo Scollo
- Division of Gynecology and Obstetrics, Maternal and Child Department, Cannizzaro Hospital, Kore University Enna, 94100 Enna, Italy;
| | | | - Alessandro Parisi
- Clinica Oncologica e Centro Regionale di Genetica Oncologica, Azienda Ospedaliero-Universitaria delle Marche, Università Politecnica delle Marche, 60126 Ancona, Italy;
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy
| | - Grazia Artioli
- Oncology Department, Ca’ Foncello Hospital, 31100 Treviso, Italy;
| | - Innocenza Palaia
- Department of Obstetrics and Gynecology, Sapienza University, 00185 Rome, Italy;
| | - Laura Vertechy
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; (C.M.); (L.V.); (G.S.)
| | - Alice Bergamini
- Department of Gynaecology and Obstetrics, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, 20132 Milan, Italy;
| | - Elisa Picardo
- Obstetrics and Gynaecology 4, Sant’Anna Hospital, AOU Città della Salute e della Scienza of Turin, 88100 Turin, Italy;
| | | | - Giulia Scotto
- Department of Oncology, University of Turin, 10124 Turin, Italy; (G.S.); (G.V.)
| | - Giovanni Scambia
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; (C.M.); (L.V.); (G.S.)
- Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Sandro Pignata
- Department of Urology and Gynecology, National Cancer Institute IRCCS Fondazione G. Pascale, 80131 Naples, Italy; (C.P.); (S.P.)
| | - Giorgio Valabrega
- Department of Oncology, University of Turin, 10124 Turin, Italy; (G.S.); (G.V.)
- Medical Oncology, Ordine Mauriziano Hospital, 10128 Turin, Italy;
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Xu X, Sun B, Zhao C. Poly (ADP-Ribose) polymerase 1 and parthanatos in neurological diseases: From pathogenesis to therapeutic opportunities. Neurobiol Dis 2023; 187:106314. [PMID: 37783233 DOI: 10.1016/j.nbd.2023.106314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/28/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023] Open
Abstract
Poly (ADP-ribose) polymerase-1 (PARP-1) is the most extensively studied member of the PARP superfamily, with its primary function being the facilitation of DNA damage repair processes. Parthanatos is a type of regulated cell death cascade initiated by PARP-1 hyperactivation, which involves multiple subroutines, including the accumulation of ADP-ribose polymers (PAR), binding of PAR and apoptosis-inducing factor (AIF), release of AIF from the mitochondria, the translocation of the AIF/macrophage migration inhibitory factor (MIF) complex, and massive MIF-mediated DNA fragmentation. Over the past few decades, the role of PARP-1 in central nervous system health and disease has received increasing attention. In this review, we discuss the biological functions of PARP-1 in neural cell proliferation and differentiation, memory formation, brain ageing, and epigenetic regulation. We then elaborate on the involvement of PARP-1 and PARP-1-dependant parthanatos in various neuropathological processes, such as oxidative stress, neuroinflammation, mitochondrial dysfunction, excitotoxicity, autophagy damage, and endoplasmic reticulum (ER) stress. Additional highlight contains PARP-1's implications in the initiation, progression, and therapeutic opportunities for different neurological illnesses, including neurodegenerative diseases, stroke, autism spectrum disorder (ASD), multiple sclerosis (MS), epilepsy, and neuropathic pain (NP). Finally, emerging insights into the repurposing of PARP inhibitors for the management of neurological diseases are provided. This review aims to summarize the exciting advancements in the critical role of PARP-1 in neurological disorders, which may open new avenues for therapeutic options targeting PARP-1 or parthanatos.
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Affiliation(s)
- Xiaoxue Xu
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China; Key Laboratory of Neurological Disease Big Data of Liaoning Province, Shenyang, China.
| | - Bowen Sun
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China; Key Laboratory of Neurological Disease Big Data of Liaoning Province, Shenyang, China
| | - Chuansheng Zhao
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China; Key Laboratory of Neurological Disease Big Data of Liaoning Province, Shenyang, China.
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Gao H, Nepovimova E, Heger Z, Valko M, Wu Q, Kuca K, Adam V. Role of hypoxia in cellular senescence. Pharmacol Res 2023; 194:106841. [PMID: 37385572 DOI: 10.1016/j.phrs.2023.106841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 06/25/2023] [Accepted: 06/25/2023] [Indexed: 07/01/2023]
Abstract
Senescent cells persist and continuously secrete proinflammatory and tissue-remodeling molecules that poison surrounding cells, leading to various age-related diseases, including diabetes, atherosclerosis, and Alzheimer's disease. The underlying mechanism of cellular senescence has not yet been fully explored. Emerging evidence indicates that hypoxia is involved in the regulation of cellular senescence. Hypoxia-inducible factor (HIF)- 1α accumulates under hypoxic conditions and regulates cellular senescence by modulating the levels of the senescence markers p16, p53, lamin B1, and cyclin D1. Hypoxia is a critical condition for maintaining tumor immune evasion, which is promoted by driving the expression of genetic factors (such as p53 and CD47) while triggering immunosenescence. Under hypoxic conditions, autophagy is activated by targeting BCL-2/adenovirus E1B 19-kDa interacting protein 3, which subsequently induces p21WAF1/CIP1 as well as p16Ink4a and increases β-galactosidase (β-gal) activity, thereby inducing cellular senescence. Deletion of the p21 gene increases the activity of the hypoxia response regulator poly (ADP-ribose) polymerase-1 (PARP-1) and the level of nonhomologous end joining (NHEJ) proteins, repairs DNA double-strand breaks, and alleviates cellular senescence. Moreover, cellular senescence is associated with intestinal dysbiosis and an accumulation of D-galactose derived from the gut microbiota. Chronic hypoxia leads to a striking reduction in the amount of Lactobacillus and D-galactose-degrading enzymes in the gut, producing excess reactive oxygen species (ROS) and inducing senescence in bone marrow mesenchymal stem cells. Exosomal microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) play important roles in cellular senescence. miR-424-5p levels are decreased under hypoxia, whereas lncRNA-MALAT1 levels are increased, both of which induce cellular senescence. The present review focuses on recent advances in understanding the role of hypoxia in cellular senescence. The effects of HIFs, immune evasion, PARP-1, gut microbiota, and exosomal mRNA in hypoxia-mediated cell senescence are specifically discussed. This review increases our understanding of the mechanism of hypoxia-mediated cellular senescence and provides new clues for anti-aging processes and the treatment of aging-related diseases.
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Affiliation(s)
- Haoyu Gao
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Králové, Hradec Králové 500 03, Czech Republic
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno 613 00, Czech Republic
| | - Marian Valko
- Faculty of Chemical and Food Technology, Slovak University of Technology, Bratislava 812 37, Slovakia
| | - Qinghua Wu
- College of Life Science, Yangtze University, Jingzhou 434025, China; Department of Chemistry, Faculty of Science, University of Hradec Králové, Hradec Králové 500 03, Czech Republic.
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Králové, Hradec Králové 500 03, Czech Republic; Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove 500 05, Czech Republic; Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Granada, Spain.
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno 613 00, Czech Republic.
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PARP-1 Expression Influences Cancer Stem Cell Phenotype in Colorectal Cancer Depending on p53. Int J Mol Sci 2023; 24:ijms24054787. [PMID: 36902215 PMCID: PMC10002521 DOI: 10.3390/ijms24054787] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/23/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
Poly(ADP-ribose) polymerase-1 (PARP-1) is a protein involved in multiple physiological processes. Elevated PARP-1 expression has been found in several tumours, being associated with stemness and tumorigenesis. In colorectal cancer (CRC), some controversy among studies has been described. In this study, we analysed the expression of PARP-1 and cancer stem cell (CSC) markers in CRC patients with different p53 status. In addition, we used an in vitro model to evaluate the influence of PARP-1 in CSC phenotype regarding p53. In CRC patients, PARP-1 expression correlated with the differentiation grade, but this association was only maintained for tumours harbouring wild-type p53. Additionally, in those tumours, PARP-1 and CSC markers were positively correlated. In mutated p53 tumours, no associations were found, but PARP-1 was an independent factor for survival. According to our in vitro model, PARP-1 regulates CSC phenotype depending on p53 status. PARP-1 overexpression in a wild type p53 context increases CSC markers and sphere forming ability. By contrast, those features were reduced in mutated p53 cells. These results could implicate that patients with elevated PARP-1 expression and wild type p53 could benefit from PARP-1 inhibition therapies, meanwhile it could have adverse effects for those carrying mutated p53 tumours.
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Fernández-Cortés M, Delgado-Bellido D, Bermúdez-Jiménez E, Paramio JM, O'Valle F, Vinckier S, Carmeliet P, Garcia-Diaz A, Oliver FJ. PARP inhibition promotes endothelial-like traits in melanoma cells and modulates pericyte coverage dynamics during vasculogenic mimicry. J Pathol 2023; 259:318-330. [PMID: 36484652 PMCID: PMC10107856 DOI: 10.1002/path.6043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 11/12/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
Vasculogenic mimicry (VM) describes the ability of highly aggressive tumor cells to develop pseudovascular structures without the participation of endothelial cells. PARP1 is implicated in the activation of hypoxia-inducible factors, which are crucial in tumor neovascularization. We have explored the role of hypoxia and PARP inhibition in VM. In uveal melanoma xenografts, the PARP inhibitor olaparib improved in vivo pericyte coverage specifically of VM channels. This was concomitant with reduced metastasis in olaparib-treated VM+ tumors. PARP inhibition and hypoxia modulated melanoma tube formation in vitro, inducing a more sparse and regular tubular architecture. Whole-transcriptome profiling revealed that olaparib treatment under hypoxic conditions modulated the expression of genes implicated in vasculogenesis during tube formation, enhancing the endothelial-like phenotype of VM+ uveal melanoma cells. PARP inhibition, especially during hypoxia, upregulated PDGFβ, which is essential for pericyte recruitment. Our study indicates that PARP inhibitors may enhance the endothelial characteristics of VM+ cells, modulate pericyte coverage, and reduce metastatic spread in VM+ melanoma. © 2022 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Mónica Fernández-Cortés
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, Centro de Investigación Biomédica en Red de Cáncer CIBERONC, Granada, Spain
| | - Daniel Delgado-Bellido
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, Centro de Investigación Biomédica en Red de Cáncer CIBERONC, Granada, Spain
| | - Eloísa Bermúdez-Jiménez
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, Centro de Investigación Biomédica en Red de Cáncer CIBERONC, Granada, Spain
| | - Jesús M Paramio
- Molecular Oncology Unit, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Biomedical Research Institute I+12, University Hospital "12 de Octubre", Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Francisco O'Valle
- Department of Pathology, Faculty of Medicine, University of Granada (UGR), Granada, Spain
| | - Stefan Vinckier
- Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, & Department of Oncology and Leuven Cancer Institute (LKI), Leuven, Belgium
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, & Department of Oncology and Leuven Cancer Institute (LKI), Leuven, Belgium.,Laboratory of Angiogenesis and Vascular Heterogeneity, Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Angel Garcia-Diaz
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, Centro de Investigación Biomédica en Red de Cáncer CIBERONC, Granada, Spain
| | - F Javier Oliver
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, Centro de Investigación Biomédica en Red de Cáncer CIBERONC, Granada, Spain
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Sigurdson S, Marom EM, Rimner A, Shepherd A, Szolkowska M, Roden AC, Marino M, Tomiyama N, Ball D, Falkson C, Rajan A. The therapeutic relevance of a BRCA2 mutation in a patient with recurrent thymoma: a case report. MEDIASTINUM (HONG KONG, CHINA) 2022; 6:40. [PMID: 36582974 PMCID: PMC9792822 DOI: 10.21037/med-22-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 07/21/2022] [Indexed: 01/01/2023]
Abstract
Background Thymomas are characterized by a low tumor mutation burden and a paucity of actionable mutations. Clinical behavior can vary from relatively indolent to very aggressive and impact survival. Platinum-based chemotherapy is the primary treatment modality for inoperable disease and is palliative in intent. Patients with advanced thymoma frequently experience disease recurrence after frontline therapy. Treatment options for relapsed thymoma are relatively limited. A case of recurrent thymoma harboring a breast cancer gene 2 (BRCA2) mutation was presented for multidisciplinary discussion at the International Thymic Malignancy Interest Group (ITMIG) Tumor Board meeting. Case Description A 63-year-old female presented with Tumor Node Metastasis (TNM) stage I, World Health Organization (WHO) subtype B1 thymoma at diagnosis and underwent surgical resection. First recurrence occurred in the left costophrenic recess and was treated with preoperative external beam radiotherapy (EBRT), surgical excision, and post-operative chemotherapy. Histology was consistent with WHO subtype B2 thymoma and genomic analysis of the resected tumor detected a BRCA2 mutation. Second recurrence occurred in the mediastinum and bilateral pleurae. Mediastinal disease was treated with EBRT, and the pleural deposits were observed initially. However, upon further progression, the case was discussed at the ITMIG tumor board meeting to determine optimal second line therapy for this patient. Conclusions A potential role of poly (ADP-ribose) polymerase (PARP) inhibitors versus cytotoxic chemotherapy for treatment of BRCA2-mutated recurrent thymoma merits discussion. However, due to the absence of data to support the functional and therapeutic significance of BRCA2 mutations in patients with thymoma, the potential for severe toxicity associated with PARP inhibitors, and availability of other safe and effective alternatives, other treatment options should be considered. PARP inhibitors can be considered for treatment of BRCA2-mutated thymomas as part of a clinical trial or when other treatment options have been exhausted.
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Affiliation(s)
- Samantha Sigurdson
- Department of Oncology, Queen’s University, Cancer Centre of Southeastern Ontario, Kingston, ON, Canada
| | - Edith M. Marom
- The Chaim Sheba Medical Center, Affiliated with the Tel Aviv University, Tel Aviv, Israel
| | - Andreas Rimner
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Annemarie Shepherd
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Malgorzata Szolkowska
- Department of Pathology, National Tuberculosis and Lung Diseases Research Institute, Warsaw, Poland
| | - Anja C. Roden
- Department of Laboratory Medicine and Pathology, Mayo Clinic Rochester, MN, USA
| | - Mirella Marino
- Department of Pathology, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Noriyuki Tomiyama
- Department of Radiology, Osaka University Graduate School of Medicine, Yamadaoka, Osaka, Japan
| | - David Ball
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Conrad Falkson
- Department of Oncology, Queen’s University, Cancer Centre of Southeastern Ontario, Kingston, ON, Canada
| | - Arun Rajan
- Thoracic and Gastrointestinal Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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PARP Inhibitor Inhibits the Vasculogenic Mimicry through a NF-κB-PTX3 Axis Signaling in Breast Cancer Cells. Int J Mol Sci 2022; 23:ijms232416171. [PMID: 36555812 PMCID: PMC9785325 DOI: 10.3390/ijms232416171] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/04/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
Poly (ADP-ribose) polymerase inhibitors (PARPi) are targeted therapies that inhibit PARP proteins which are involved in a variety of cell functions. PARPi may act as modulators of angiogenesis; however, the relationship between PARPi and the vasculogenic mimicry (VM) in breast cancer remains unclear. To determine whether PARPi regulate the vascular channel formation, we assessed whether the treatment with olaparib, talazoparib and veliparib inhibits the vascular channel formation by breast cancer cell lines. Here, we found that PARPi act as potent inhibitors of the VM formation in triple negative breast cancer cells, independently of the BRCA status. Mechanistically, we find that PARPi trigger and inhibit the NF-κB signaling, leading to the inhibition of the VM. We further show that PARPi decrease the expression of the angiogenic factor PTX3. Moreover, PTX3 rescued the PARPi-inhibited VM inhibition. In conclusion, our results indicate that PARPi, by targeting the VM, may provide a new therapeutic approach for triple negative breast cancer.
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Bound NT, Vandenberg CJ, Kartikasari AER, Plebanski M, Scott CL. Improving PARP inhibitor efficacy in high-grade serous ovarian carcinoma: A focus on the immune system. Front Genet 2022; 13:886170. [PMID: 36159999 PMCID: PMC9505691 DOI: 10.3389/fgene.2022.886170] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 08/05/2022] [Indexed: 12/03/2022] Open
Abstract
High-grade serous ovarian carcinoma (HGSOC) is a genomically unstable malignancy responsible for over 70% of all deaths due to ovarian cancer. With roughly 50% of all HGSOC harboring defects in the homologous recombination (HR) DNA repair pathway (e.g., BRCA1/2 mutations), the introduction of poly ADP-ribose polymerase inhibitors (PARPi) has dramatically improved outcomes for women with HR defective HGSOC. By blocking the repair of single-stranded DNA damage in cancer cells already lacking high-fidelity HR pathways, PARPi causes the accumulation of double-stranded DNA breaks, leading to cell death. Thus, this synthetic lethality results in PARPi selectively targeting cancer cells, resulting in impressive efficacy. Despite this, resistance to PARPi commonly develops through diverse mechanisms, such as the acquisition of secondary BRCA1/2 mutations. Perhaps less well documented is that PARPi can impact both the tumour microenvironment and the immune response, through upregulation of the stimulator of interferon genes (STING) pathway, upregulation of immune checkpoints such as PD-L1, and by stimulating the production of pro-inflammatory cytokines. Whilst targeted immunotherapies have not yet found their place in the clinic for HGSOC, the evidence above, as well as ongoing studies exploring the synergistic effects of PARPi with immune agents, including immune checkpoint inhibitors, suggests potential for targeting the immune response in HGSOC. Additionally, combining PARPi with epigenetic-modulating drugs may improve PARPi efficacy, by inducing a BRCA-defective phenotype to sensitise resistant cancer cells to PARPi. Finally, invigorating an immune response during PARPi therapy may engage anti-cancer immune responses that potentiate efficacy and mitigate the development of PARPi resistance. Here, we will review the emerging PARPi literature with a focus on PARPi effects on the immune response in HGSOC, as well as the potential of epigenetic combination therapies. We highlight the potential of transforming HGSOC from a lethal to a chronic disease and increasing the likelihood of cure.
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Affiliation(s)
- Nirashaa T. Bound
- Cancer Biology and Stem Cells, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Cancer Ageing and Vaccines (CAVA), Translational Immunology & Nanotechnology Research Program, School of Health & Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Cassandra J. Vandenberg
- Cancer Biology and Stem Cells, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Apriliana E. R. Kartikasari
- Cancer Ageing and Vaccines (CAVA), Translational Immunology & Nanotechnology Research Program, School of Health & Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Magdalena Plebanski
- Cancer Ageing and Vaccines (CAVA), Translational Immunology & Nanotechnology Research Program, School of Health & Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Clare L. Scott
- Cancer Biology and Stem Cells, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
- Peter MacCallum Cancer Centre, Parkville, VIC, Australia
- Royal Women’s Hospital, Parkville, VIC, Australia
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10
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Paul S, Sinha S, Kundu CN. Targeting cancer stem cells in the tumor microenvironment: An emerging role of PARP inhibitors. Pharmacol Res 2022; 184:106425. [PMID: 36075511 DOI: 10.1016/j.phrs.2022.106425] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/19/2022]
Abstract
Cancer stem cells (CSCs) constitute a small population of cancer cells in the tumor microenvironment (TME), which are responsible for metastasis, angiogenesis, drug resistance, and cancer relapse. Understanding the key signatures and resistance mechanisms of CSCs may help in the development of novel chemotherapeutic strategies to specifically target CSCs in the TME. PARP inhibitors (PARPi) are known to enhance the chemosensitivity of cancer cells to other chemotherapeutic agents by inhibiting the DNA repair pathways and chromatin modulation. But their effects on CSCs are still unknown. Few studies have reported that PARPi can stall replication fork progression in CSCs. PARPi also have the potential to overcome chemoresistance in CSCs and anti-angiogenic potentiality as well. Previous reports have suggested that epigenetic drugs can synergistically ameliorate the anti-cancer activities of PARPi through epigenetic modulations. In this review, we have systematically discussed the effects of PARPi on different DNA repair pathways with respect to CSCs and also how CSCs can be targeted either as monotherapy or as a part of combination therapy. We have also talked about how PARPi can help in reversal of chemoresistance of CSCs and the role of PARPi in epigenetic modifications to hinder cancer progression. We have also elaborated on the aspects of research that need to be investigated for development of successful therapeutic interventions using PARPi to specifically target CSCs in the TME.
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Affiliation(s)
- Subarno Paul
- Cancer Biology Division, School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Deemed to be University, Campus-11, Patia, Bhubaneswar, Odisha 751024, India
| | - Saptarshi Sinha
- Cancer Biology Division, School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Deemed to be University, Campus-11, Patia, Bhubaneswar, Odisha 751024, India
| | - Chanakya Nath Kundu
- Cancer Biology Division, School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Deemed to be University, Campus-11, Patia, Bhubaneswar, Odisha 751024, India.
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11
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Jeong KY, Sim JJ, Park M, Kim HM. Accumulation of poly (adenosine diphosphate-ribose) by sustained supply of calcium inducing mitochondrial stress in pancreatic cancer cells. World J Gastroenterol 2022; 28:3422-3434. [PMID: 36158271 PMCID: PMC9346456 DOI: 10.3748/wjg.v28.i27.3422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/15/2022] [Accepted: 06/26/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The biochemical phenomenon defined as poly adenosine diphosphate (ADP)-ribosylation (PARylation) is essential for the progression of pancreatic cancer. However, the excessive accumulation of poly ADP-ribose (PAR) induces apoptosis-inducing factor (AIF) release from mitochondria and energy deprivation resulting in the caspase-independent death of cancer cells.
AIM To investigate whether sustained calcium supply could induce an anticancer effect on pancreatic cancer by PAR accumulation.
METHODS Two pancreatic cancer cell lines, AsPC-1 and CFPAC-1 were used for the study. Calcium influx and mitochondrial reactive oxygen species (ROS) were observed by fluorescence staining. Changes in enzyme levels, as well as PAR accumulation and energy metabolism, were measured using assay kits. AIF-dependent cell death was investigated followed by confirming in vivo anticancer effects by sustained calcium administration.
RESULTS Mitochondrial ROS levels were elevated with increasing calcium influx into pancreatic cancer cells. Then, excess PAR accumulation, decreased PAR glycohydrolase and ADP-ribosyl hydrolase 3 levels, and energy deprivation were observed. In vitro and in vivo antitumor effects were confirmed to accompany elevated AIF levels.
CONCLUSION This study visualized the potential anticancer effects of excessive PAR accumulation by sustained calcium supply on pancreatic cancer, however elucidating a clear mode of action remains a challenge, and it should be accompanied by further studies to assess its potential for clinical application.
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Affiliation(s)
- Keun-Yeong Jeong
- Research and Development, Metimedi Pharmaceuticals, Incheon 22006, South Korea
| | - Jae Jun Sim
- Research and Development, Metimedi Pharmaceuticals, Incheon 22006, South Korea
| | - Minhee Park
- Research and Development, Metimedi Pharmaceuticals, Incheon 22006, South Korea
| | - Hwan Mook Kim
- Research and Development, Metimedi Pharmaceuticals, Incheon 22006, South Korea
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12
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Lengyel-Zhanda Z, Puentes LN, Mach RH. PARkinson's: From cellular mechanisms to potential therapeutics. Pharmacol Ther 2022; 230:107968. [PMID: 34391789 PMCID: PMC8821123 DOI: 10.1016/j.pharmthera.2021.107968] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/13/2021] [Accepted: 07/14/2021] [Indexed: 02/03/2023]
Abstract
Our understanding of the progression and mechanisms underlying the onset of Parkinson's disease (PD) has grown enormously in the past few decades. There is growing evidence suggesting that poly (ADP-ribose) polymerase 1 (PARP-1) hyperactivation is involved in various neurodegenerative disorders, including PD, and that poly (ADP-ribose) (PAR)-dependent cell death is responsible for neuronal loss. In this review, we discuss the contribution of PARP-1 and PAR in the pathological process of PD. We describe the potential pathways regulated by the enzyme, review clinically relevant PARP-1 inhibitors as potential disease-modifying therapeutics for PD, and outline important factors that need to be considered for repurposing PARP-1 inhibitors for use in PD.
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Affiliation(s)
| | - Laura N. Puentes
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Robert H. Mach
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA,Corresponding author at: Vagelos Building, Room 1012, 231 S. 34th Street, Philadelphia, PA 19104
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13
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Elisabetta G, Anna B, Adriano P, Andrea CD, Guido S, Ilaria P, Andrea B, Lorenzo A, Serena P. Pharmacogenomics of soft tissue sarcomas: New horizons to understand efficacy and toxicity. Cancer Treat Res Commun 2022; 31:100528. [PMID: 35123198 DOI: 10.1016/j.ctarc.2022.100528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 01/25/2022] [Accepted: 01/28/2022] [Indexed: 01/27/2023]
Abstract
Clinical responses to anticancer therapies in advanced soft tissue sarcoma (STS) are unfortunately limited to a small subset of patients. Much of the inter-individual variability in treatment efficacy and risk of toxicities is as result of polymorphisms in genes encoding proteins involved in drug pharmacokinetics and pharmacodynamics. Therefore, the detection of pharmacogenomics (PGx) biomarkers that might predict drug response and toxicity can be useful to explain the genetic basis for the differences in treatment efficacy and toxicity among STS patients. PGx markers are frequently located in transporters, drug-metabolizing enzyme genes, drug targets, or HLA alleles. Along this line, genetic variability harbouring in the germline genome of the patients can influence systemic pharmacokinetics and pharmacodynamics of the treatments, acting as predictive biomarkers for drug-induced toxicity and treatment efficacy. By linking drug activity to the functional complexity of cancer genomes, also systematic pharmacogenomic profiling in cancer cell lines and primary STS samples represents area of active investigation that could eventually lead to enhanced efficacy and offer a powerful biomarker discovery platform to optimize current treatments and improve the knowledge about the individual's drug response in STS patients into the clinical practice.
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Affiliation(s)
| | - Boddi Anna
- Department of Health Science, University of Florence, Florence, Italy
| | - Pasqui Adriano
- Medical Oncology Unit, Careggi University Hospital, Florence, Italy
| | - Campanacci Domenico Andrea
- Department of Health Science, University of Florence, Florence, Italy; Department of Orthopaedic Oncology and Reconstructive Surgery, Careggi University Hospital, Florence, Italy
| | - Scoccianti Guido
- Department of Health Science, University of Florence, Florence, Italy
| | - Palchetti Ilaria
- Department of Chemistry Ugo Schiff, University of Florence, Sesto Fiorentino, Florence, Italy
| | - Bernini Andrea
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena, 53100 Italy
| | - Antonuzzo Lorenzo
- Clinical Oncology Unit, Careggi University Hospital, Florence, Italy; Medical Oncology Unit, Careggi University Hospital, Florence, Italy; Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Pillozzi Serena
- Medical Oncology Unit, Careggi University Hospital, Florence, Italy.
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14
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Zhi W, Li S, Wan Y, Wu F, Hong L. Short-term starvation synergistically enhances cytotoxicity of Niraparib via Akt/mTOR signaling pathway in ovarian cancer therapy. Cancer Cell Int 2022; 22:18. [PMID: 35016681 PMCID: PMC8753877 DOI: 10.1186/s12935-022-02447-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 01/03/2022] [Indexed: 12/21/2022] Open
Abstract
Background Short-term starvation (STS) has gradually been confirmed as a treatment method that synergistically enhances the effect of chemotherapy on malignant tumours. In clinical applications, there are still some limitations of poly (ADP-ribose) polymerase inhibitors (PARPi), including understanding their effectiveness and side effects. Here, we sought to investigate the effect and mechanism of the combined use of STS and niraparib in the treatment of ovarian cancer. Methods In in vitro experiments, SKOV3 and A2780 ovarian cancer cells were treated with STS and niraparib alone or in combination. Cell viability was assessed with CCK-8, and cell cycle, apoptosis, DNA damage repair and autophagy were examined to explore the molecular mechanisms. Akt and mTOR inhibitors were used to examine any changes in DNA damage repair levels. Xenograft animal models were treated with STS and niraparib, and HE staining and immunohistochemistry were performed to examine the effects. Results The combined use of STS and niraparib inhibited cell proliferation and increased apoptosis more than niraparib application alone. In addition, compared with the niraparib group, the STS + niraparib group had increased G2/M arrest, DNA damage and autophagy, which indicated that STS pretreatment enhanced the cytotoxicity of niraparib. In animal experiments, STS did not affect the growth of transplanted tumours, but the combined treatment synergistically enhanced the cytotoxicity of niraparib. In in vivo experiments, STS did not affect the growth of transplanted tumours, but the combined treatment synergistically enhanced the cytotoxicity of niraparib and reduced the small intestinal side effects caused by niraparib chemotherapy. Conclusion STS pretreatment can synergistically enhance the cytotoxicity of niraparib. STS + niraparib is a potentially effective strategy in the maintenance therapy of ovarian cancer.
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Affiliation(s)
- Wang Zhi
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, Hubei Province, People's Republic of China
| | - Suting Li
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, Hubei Province, People's Republic of China
| | - Yuting Wan
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, Hubei Province, People's Republic of China
| | - Fuwen Wu
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, Hubei Province, People's Republic of China
| | - Li Hong
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, Hubei Province, People's Republic of China.
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15
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Zhu L, Liu J, Chen J, Zhou Q. The developing landscape of combinatorial therapies of immune checkpoint blockade with DNA damage repair inhibitors for the treatment of breast and ovarian cancers. J Hematol Oncol 2021; 14:206. [PMID: 34930377 PMCID: PMC8686226 DOI: 10.1186/s13045-021-01218-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 12/05/2021] [Indexed: 02/07/2023] Open
Abstract
The use of immune checkpoint blockade (ICB) using antibodies against programmed death receptor (PD)-1, PD ligand (PD-L)-1, and cytotoxic T-lymphocyte antigen 4 (CTLA-4) has redefined the therapeutic landscape in solid tumors, including skin, lung, bladder, liver, renal, and breast tumors. However, overall response rates to ICB therapy remain limited in PD-L1-negative patients. Thus, rational and effective combination therapies will be needed to address ICB treatment resistance in these patients, as well as in PD-L1-positive patients who have progressed under ICB treatment. DNA damage repair inhibitors (DDRis) may activate T-cell responses and trigger inflammatory cytokines release and eventually immunogenic cancer cell death by amplifying DNA damage and generating immunogenic neoantigens, especially in DDR-defective tumors. DDRi may also lead to adaptive PD-L1 upregulation, providing a rationale for PD-L1/PD-1 blockade. Thus, based on preclinical evidence of efficacy and no significant overlapping toxicity, some ICB/DDRi combinations have rapidly progressed to clinical testing in breast and ovarian cancers. Here, we summarize the available clinical data on the combination of ICB with DDRi agents for treating breast and ovarian cancers and discuss the mechanisms of action and other lessons learned from translational studies conducted to date. We also review potential biomarkers to select patients most likely to respond to ICB/DDRi combination therapy.
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Affiliation(s)
- Lingling Zhu
- Lung Cancer Center, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Jiewei Liu
- Lung Cancer Center, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - Jiang Chen
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, Zhejiang Province, China.
| | - Qinghua Zhou
- Lung Cancer Center, West China Hospital of Sichuan University, Chengdu, 610041, Sichuan Province, China.
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16
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Pignochino Y, Crisafulli G, Giordano G, Merlini A, Berrino E, Centomo ML, Chiabotto G, Brusco S, Basiricò M, Maldi E, Pisacane A, Leuci V, Sangiolo D, D’Ambrosio L, Aglietta M, Kasper B, Bardelli A, Grignani G. PARP1 Inhibitor and Trabectedin Combination Does Not Increase Tumor Mutational Burden in Advanced Sarcomas-A Preclinical and Translational Study. Cancers (Basel) 2021; 13:cancers13246295. [PMID: 34944915 PMCID: PMC8699802 DOI: 10.3390/cancers13246295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/09/2021] [Accepted: 12/13/2021] [Indexed: 11/25/2022] Open
Abstract
Simple Summary Immunotherapy has revolutionized cancer treatment, but not for all tumor types. Indeed, sarcomas are considered “immune-cold” tumors, which are relatively unresponsive to immunotherapy. One strategy to potentiate immunotherapy efficacy is to increase tumor immunogenicity, for instance by boosting the number of candidate targets (neoantigens) to be recognized by the immune system. Tumor mutational burden indicates the number of somatic mutations identified in the tumor and normalized per megabase. Tumor mutational burden is considered as an acceptable, measurable surrogate of tumor neoantigens. Here, we explored whether the combination of two DNA-damaging agents, trabectedin and olaparib, could increase tumor mutational burden in sarcomas, to prime subsequent immunotherapy. We found no variation in tumor mutational burden after trabectedin + olaparib in preclinical and clinical samples. Therefore, other aspects should be considered to increase sarcoma immunogenicity, by exploiting different pathways such as the potential modulation of the tumor microenvironment induced by trabectedin + olaparib. Abstract Drug-induced tumor mutational burden (TMB) may contribute to unleashing the immune response in relatively “immune-cold” tumors, such as sarcomas. We previously showed that PARP1 inhibition perpetuates the DNA damage induced by the chemotherapeutic agent trabectedin in both preclinical models and sarcoma patients. In the present work, we explored acquired genetic changes in DNA repair genes, mutational signatures, and TMB in a translational platform composed of cell lines, xenografts, and tumor samples from patients treated with trabectedin and olaparib combination, compared to cells treated with temozolomide, an alkylating agent that induces hypermutation. Whole-exome and targeted panel sequencing data analyses revealed that three cycles of trabectedin and olaparib combination neither affected the mutational profiles, DNA repair gene status, or copy number alterations, nor increased TMB both in homologous recombinant-defective and proficient cells or in xenografts. Moreover, TMB was not increased in tumor specimens derived from trabectedin- and olaparib-treated patients (5–6 cycles) when compared to pre-treatment biopsies. Conversely, repeated treatments with temozolomide induced a massive TMB increase in the SJSA-1 osteosarcoma model. In conclusion, a trabectedin and olaparib combination did not show mutagenic effects and is unlikely to prime subsequent immune-therapeutic interventions based on TMB increase. On the other hand, these findings are reassuring in the increasing warning of treatment-induced hematologic malignancies correlated to PARP1 inhibitor use.
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Affiliation(s)
- Ymera Pignochino
- Department of Clinical and Biological Sciences, University of Torino, 10100 Torino, Italy;
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
| | - Giovanni Crisafulli
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
- Department of Oncology, University of Torino, 10100 Torino, Italy
| | - Giorgia Giordano
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
- Department of Oncology, University of Torino, 10100 Torino, Italy
| | - Alessandra Merlini
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
- Department of Oncology, University of Torino, 10100 Torino, Italy
- Correspondence: ; Tel.: +39-0119933623
| | - Enrico Berrino
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
- Department of Medical Sciences, University of Torino, 10100 Torino, Italy;
| | - Maria Laura Centomo
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
- Department of Oncology, University of Torino, 10100 Torino, Italy
| | - Giulia Chiabotto
- Department of Medical Sciences, University of Torino, 10100 Torino, Italy;
| | - Silvia Brusco
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
- Department of Oncology, University of Torino, 10100 Torino, Italy
| | - Marco Basiricò
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
| | - Elena Maldi
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
| | - Alberto Pisacane
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
| | - Valeria Leuci
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
| | - Dario Sangiolo
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
- Department of Oncology, University of Torino, 10100 Torino, Italy
| | - Lorenzo D’Ambrosio
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
- Cardinal Massaia Hospital, 14100 Asti, Italy
| | - Massimo Aglietta
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
- Department of Oncology, University of Torino, 10100 Torino, Italy
| | - Bernd Kasper
- Sarcoma Unit, Mannheim University Medical Center, University of Heidelberg, 68167 Mannheim, Germany;
| | - Alberto Bardelli
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
- Department of Oncology, University of Torino, 10100 Torino, Italy
| | - Giovanni Grignani
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo, Italy; (G.C.); (G.G.); (E.B.); (M.L.C.); (S.B.); (M.B.); (E.M.); (A.P.); (V.L.); (D.S.); (L.D.); (M.A.); (A.B.); (G.G.)
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Maluchenko NV, Feofanov AV, Studitsky VM. PARP-1-Associated Pathological Processes: Inhibition by Natural Polyphenols. Int J Mol Sci 2021; 22:11441. [PMID: 34768872 PMCID: PMC8584120 DOI: 10.3390/ijms222111441] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/18/2021] [Accepted: 10/21/2021] [Indexed: 02/06/2023] Open
Abstract
Poly (ADP-ribose) polymerase-1 (PARP-1) is a nuclear enzyme involved in processes of cell cycle regulation, DNA repair, transcription, and replication. Hyperactivity of PARP-1 induced by changes in cell homeostasis promotes development of chronic pathological processes leading to cell death during various metabolic disorders, cardiovascular and neurodegenerative diseases. In contrast, tumor growth is accompanied by a moderate activation of PARP-1 that supports survival of tumor cells due to enhancement of DNA lesion repair and resistance to therapy by DNA damaging agents. That is why PARP inhibitors (PARPi) are promising agents for the therapy of tumor and metabolic diseases. A PARPi family is rapidly growing partly due to natural polyphenols discovered among plant secondary metabolites. This review describes mechanisms of PARP-1 participation in the development of various pathologies, analyzes multiple PARP-dependent pathways of cell degeneration and death, and discusses representative plant polyphenols, which can inhibit PARP-1 directly or suppress unwanted PARP-dependent cellular processes.
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Affiliation(s)
- Natalya V. Maluchenko
- Biology Faculty, Lomonosov Moscow State University, Lenin Hills 1/12, 119234 Moscow, Russia; (A.V.F.); (V.M.S.)
| | - Alexey V. Feofanov
- Biology Faculty, Lomonosov Moscow State University, Lenin Hills 1/12, 119234 Moscow, Russia; (A.V.F.); (V.M.S.)
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Mikluko-Maklaya Str., 16/10, 117997 Moscow, Russia
| | - Vasily M. Studitsky
- Biology Faculty, Lomonosov Moscow State University, Lenin Hills 1/12, 119234 Moscow, Russia; (A.V.F.); (V.M.S.)
- Fox Chase Cancer Center, Cottman Avenue 333, Philadelphia, PA 19111, USA
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Wattenberg MM, Reiss KA. Determinants of Homologous Recombination Deficiency in Pancreatic Cancer. Cancers (Basel) 2021; 13:4716. [PMID: 34572943 PMCID: PMC8466888 DOI: 10.3390/cancers13184716] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/10/2021] [Accepted: 09/16/2021] [Indexed: 12/23/2022] Open
Abstract
Pancreatic cancer is a treatment-resistant malignancy associated with high mortality. However, defective homologous recombination (HR), a DNA repair mechanism required for high-fidelity repair of double-strand DNA breaks, is a therapeutic vulnerability. Consistent with this, a subset of patients with pancreatic cancer show unique tumor responsiveness to HR-dependent DNA damage triggered by certain treatments (platinum chemotherapy and PARP inhibitors). While pathogenic mutations in HR genes are a major driver of this sensitivity, another layer of diverse tumor intrinsic and extrinsic factors regulate the HR deficiency (HRD) phenotype. Defining the mechanisms that drive HRD may guide the development of novel strategies and therapeutics to induce treatment sensitivity in non-HRD tumors. Here, we discuss the complexity underlying HRD in pancreatic cancer and highlight implications for identifying and treating this distinct subset of patients.
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Affiliation(s)
- Max M. Wattenberg
- Division of Hematology-Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA;
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kim A. Reiss
- Division of Hematology-Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA;
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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19
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Yilmaz S, Alkan T, Ballar Kirmizibayrak P. A new underlying mechanism for the neuroprotective effect of bosutinib: Reverting toxicity-induced PARylation in SIN1-mediated neurotoxicity. J Biochem Mol Toxicol 2021; 35:e22915. [PMID: 34519134 DOI: 10.1002/jbt.22915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 08/16/2021] [Accepted: 09/01/2021] [Indexed: 11/09/2022]
Abstract
Increased levels of reactive oxygen and nitrogen species play an important role in the development and progression of neurodegenerative diseases, such as Alzheimer's and Parkinson's disease. The overproduction of these highly reactive chemical species leads to DNA damage and subsequent activation of the poly(ADP-ribose)polymerase (PARP) enzyme. Several studies have demonstrated the potential use of PARP inhibitors for neuroprotection. We previously reported that the dual Src/Abl kinase inhibitor bosutinib (BOS) decreases PARP activity and acts as a chemosensitizer in cancer cells. In this study, we evaluated the neuroprotective potential of BOS with respect to its inhibitory effect on cellular poly(ADP-ribos)ylation (PARylation) using a 3-morpholinosydnonimine (SIN1)-mediated cellular toxicity model. Our data suggest that pretreatment with BOS, especially at lower doses, significantly decreased the level of SIN1-induced cellular PARylation. This regulation pattern of PARylation was found to be associated with the protective effect of BOS against SIN1 on the viability of retinoic acid-differentiated SH-SY5Y cells. Furthermore, while PARP-1 expression was decreased, phosphorylation of SAPK/JNK was not reverted at the observed neuroprotective doses of BOS. In conclusion, we suggest a novel mechanism for the neuroprotective effect of BOS involving the inhibition of cellular PARylation.
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Affiliation(s)
- Sinem Yilmaz
- Department of Biotechnology, Graduate School of Natural and Applied Sciences, Ege University, Izmir, Turkey.,Department of Bioengineering, Faculty of Engineering, University of Alanya Aladdin Keykubat, Antalya, Turkey
| | - Tolgaç Alkan
- Department of Biochemistry, Faculty of Pharmacy, Ege University, Izmir, Turkey
| | - Petek Ballar Kirmizibayrak
- Department of Biotechnology, Graduate School of Natural and Applied Sciences, Ege University, Izmir, Turkey.,Department of Biochemistry, Faculty of Pharmacy, Ege University, Izmir, Turkey
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20
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Mu S, Palmer D, Fitzgerald R, Andreu‐Vieyra C, Zhang H, Tang Z, Su D, Sahasranaman S. Human Mass Balance and Metabolite Profiling of [ 14 C]-Pamiparib, a Poly (ADP-Ribose) Polymerase Inhibitor, in Patients With Advanced Cancer. Clin Pharmacol Drug Dev 2021; 10:1108-1120. [PMID: 33876576 PMCID: PMC8453745 DOI: 10.1002/cpdd.943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 03/02/2021] [Indexed: 12/27/2022]
Abstract
Pamiparib, a selective poly (ADP-ribose) polymerase 1/2 inhibitor, demonstrated tolerability and antitumor activity in patients with solid tumors at 60 mg orally twice daily. This phase 1 open-label study (NCT03991494; BGB-290-106) investigated the absorption, metabolism, and excretion (AME) of 60 mg [14 C]-pamiparib in 4 patients with solid tumors. The mass balance in excreta, blood, and plasma radioactivity and plasma pamiparib concentration were determined along with metabolite profiles in plasma, urine, and feces. Unchanged pamiparib accounted for the most plasma radioactivity (67.2% ± 10.2%). Pamiparib was rapidly absorbed with a median time to maximum plasma concentration (Cmax ) of 2.00 hours (range, 1.00-3.05 hours). After reaching Cmax , pamiparib declined in a biphasic manner, with a geometric mean terminal half-life (t1/2 ) of 28.7 hours. Mean cumulative [14 C]-pamiparib excretion was 84.7% ± 3.5%. Pamiparib was mainly cleared through metabolism, primarily via N-oxidation and oxidation of the pyrrolidine ring. A dehydrogenated oxidative product (M3) was the most abundant metabolite in biosamples. A mean of 2.11% and 1.11% of [14 C]-pamiparib was excreted as unchanged pamiparib in feces and urine, respectively, indicating near-complete absorption and low renal clearance of parent drug. Cytochrome P450 (CYP) phenotyping demonstrated CYP2C8 and CYP3A involvement in pamiparib metabolism. These findings provide an understanding of pamiparib AME mechanisms and potential drug-drug interaction liability.
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Affiliation(s)
- Song Mu
- BeiGene USA, Inc.San MateoCaliforniaUSA
| | - Daniel Palmer
- Liverpool CR UK/NIHR Experimental Cancer Medicine CentreUniversity of Liverpool and Clatterbridge Cancer CentreLiverpoolUK
| | - Richard Fitzgerald
- NIHR Royal Liverpool and Broadgreen Clinical Research FacilityLiverpool University HospitalsLiverpoolUK
| | | | | | | | - Dan Su
- BeiGene (Beijing) Co., Ltd.BeijingChina
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21
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Kiss A, Csikos C, Regdon Z, Polgár Z, Virág L, Hegedűs C. NMNAT1 Is a Survival Factor in Actinomycin D-Induced Osteosarcoma Cell Death. Int J Mol Sci 2021; 22:8869. [PMID: 34445574 PMCID: PMC8396190 DOI: 10.3390/ijms22168869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/12/2021] [Accepted: 08/16/2021] [Indexed: 01/25/2023] Open
Abstract
Osteosarcoma is a frequent and extremely aggressive type of pediatric cancer. New therapeutic approaches are needed to improve the overall survival of osteosarcoma patients. Our previous results suggest that NMNAT1, a key enzyme in nuclear NAD+ synthesis, facilitates the survival of cisplatin-treated osteosarcoma cells. A high-throughput cytotoxicity screening was performed to identify novel pathways or compounds linked to the cancer-promoting role of NMNAT1. Nine compounds caused higher toxicity in the NMNAT1 KO U2OS cells compared to their wild type counterparts, and actinomycin D (ActD) was the most potent. ActD-treatment of NMNAT1 KO cells increased caspase activity and secondary necrosis. The reduced NAD+ content in NMNAT1 KO cells was further decreased by ActD, which partially inhibited NAD+-dependent enzymes, including the DNA nick sensor enzyme PARP1 and the NAD+-dependent deacetylase SIRT1. Impaired PARP1 activity increased DNA damage in ActD-treated NMNAT1 knockout cells, while SIRT1 impairment increased acetylation of the p53 protein, causing the upregulation of pro-apoptotic proteins (NOXA, BAX). Proliferation was decreased through both PARP- and SIRT-dependent pathways. On the one hand, PARP inhibitors sensitized wild type but not NMNAT1 KO cells to ActD-induced anti-clonogenic effects; on the other hand, over-acetylated p53 induced the expression of the anti-proliferative p21 protein leading to cell cycle arrest. Based on our results, NMNAT1 acts as a survival factor in ActD-treated osteosarcoma cells. By inhibiting both PARP1- and SIRT1-dependent cellular pathways, NMNAT1 inhibition can be a promising new tool in osteosarcoma chemotherapy.
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Affiliation(s)
- Alexandra Kiss
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.K.); (C.C.); (Z.R.); (Z.P.)
- Doctoral School of Molecular Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Csaba Csikos
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.K.); (C.C.); (Z.R.); (Z.P.)
| | - Zsolt Regdon
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.K.); (C.C.); (Z.R.); (Z.P.)
| | - Zsuzsanna Polgár
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.K.); (C.C.); (Z.R.); (Z.P.)
| | - László Virág
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.K.); (C.C.); (Z.R.); (Z.P.)
- MTA-DE Cell Biology and Signaling Research Group, H-4032 Debrecen, Hungary
| | - Csaba Hegedűs
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.K.); (C.C.); (Z.R.); (Z.P.)
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22
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Jeong KY, Park M. Poly adenosine diphosphate-ribosylation, a promising target for colorectal cancer treatment. World J Gastrointest Oncol 2021; 13:574-588. [PMID: 34163574 PMCID: PMC8204356 DOI: 10.4251/wjgo.v13.i6.574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/22/2021] [Accepted: 05/08/2021] [Indexed: 02/06/2023] Open
Abstract
The development of colorectal cancer (CRC) can result from changes in a variety of cellular systems within the tumor microenvironment. Particularly, it is primarily associated with genomic instability that is the gradual accumulation of genetic and epigenetic changes consisting of a characteristic set of mutations crucial for pathways in CRC progression. Based on this background, the potential to focus on poly [adenosine diphosphate (ADP)-ribose] polymerase (PARP)-1 and poly-ADP ribosylation (PARylation) as the main causes of malignant formation of CRC may be considered. One of the important functions of PARP-1 and PARylation is its deoxyribonucleic acid (DNA) repair function, which plays a pivotal role in the DNA damage response and prevention of DNA damage maintaining the redox homeostasis involved in the regulation of oxidation and superoxide. PARP-1 and PARylation can also alter epigenetic markers and chromatin structure involved in transcriptional regulation for the oncogenes or tumor suppressor genes by remodeling histone and chromatin enzymes. Given the high importance of these processes in CRC, it can be considered that PARP-1 and PARylation are at the forefront of the pathological changes required for CRC progression. Therefore, this review addresses the current molecular biological features for understanding the multifactorial function of PARP-1 and PARylation in CRC related to the aforementioned roles; furthermore, it presents a summary of recent approaches with PARP-1 inhibition in non-clinical and clinical studies targeting CRC. This understanding could help embrace the importance of targeting PARP-1 and PARylation in the treatment of CRC, which may present the potential to identify various research topics that can be challenged both non-clinically and clinically.
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Affiliation(s)
- Keun-Yeong Jeong
- Research and Development, Metimedi Pharmaceuticals, Incheon 22006, South Korea
| | - Minhee Park
- Research and Development, Metimedi Pharmaceuticals, Incheon 22006, South Korea
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23
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Chen MK. Efficacy of PARP inhibition combined with EZH2 inhibition depends on BRCA mutation status and microenvironment in breast cancer. FEBS J 2021; 288:2884-2887. [PMID: 33570247 PMCID: PMC8096666 DOI: 10.1111/febs.15730] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 01/25/2021] [Indexed: 12/25/2022]
Abstract
The efficacy of the combination of a PARP inhibitor (PARPi) and an EZH2 inhibitor has been investigated in breast cancer cells with either BRCA1 mutation or BRCA2 mutation. However, earlier studies focused on the efficacy of this combination against BRCA-mutated but not BRCA-proficient breast cancer. Yang et al. observed that PARP1 depletion combined with EZH2 depletion via PRC2 depletion did not affect the growth of BRCA1/2 wild-type breast cancer cells in vitro. Moreover, Yang et al. reported that this combination stimulated synthetic viability of BRCA1/2-proficient breast cancer cells in vivo by regulating the tumor microenvironment to induce angiogenesis and differentiation of M2-type macrophages. The findings of Yang et al. provided evidence that both in vitro and animal models should be employed in the studies of PARPi combination therapies in order to involve the alteration of the tumor microenvironment in these investigations. These studies of PARP inhibition combined with EZH2 inhibition in breast cancer showed that this combination may benefit breast cancer patients carrying BRCA1-mutated tumor, but the combination may also enhance recurrence of BRCA2-mutated tumor and may even promote BRCA-proficient cancer cell survival. Therefore, BRCA1 mutation status should be used to select breast cancer patients for PARPi and EZH2 inhibitor combination treatment in clinical trials in the future.
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Affiliation(s)
- Mei-Kuang Chen
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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24
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Zamudio-Martinez E, Herrera-Campos AB, Muñoz A, Rodríguez-Vargas JM, Oliver FJ. Tankyrases as modulators of pro-tumoral functions: molecular insights and therapeutic opportunities. J Exp Clin Cancer Res 2021; 40:144. [PMID: 33910596 PMCID: PMC8080362 DOI: 10.1186/s13046-021-01950-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 04/15/2021] [Indexed: 12/18/2022] Open
Abstract
Tankyrase 1 (TNKS1) and tankyrase 2 (TNKS2) are two homologous proteins that are gaining increasing importance due to their implication in multiple pathways and diseases such as cancer. TNKS1/2 interact with a large variety of substrates through the ankyrin (ANK) domain, which recognizes a sequence present in all the substrates of tankyrase, called Tankyrase Binding Motif (TBM). One of the main functions of tankyrases is the regulation of protein stability through the process of PARylation-dependent ubiquitination (PARdU). Nonetheless, there are other functions less studied that are also essential in order to understand the role of tankyrases in many pathways. In this review, we concentrate in different tankyrase substrates and we analyze in depth the biological consequences derived of their interaction with TNKS1/2. We also examine the concept of both canonical and non-canonical TBMs and finally, we focus on the information about the role of TNKS1/2 in different tumor context, along with the benefits and limitations of the current TNKS inhibitors targeting the catalytic PARP domain and the novel strategies to develop inhibitors against the ankyrin domain. Available data indicates the need for further deepening in the knowledge of tankyrases to elucidate and improve the current view of the role of these PARP family members and get inhibitors with a better therapeutic and safety profile.
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Affiliation(s)
- Esteban Zamudio-Martinez
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, CIBERONC, 18016, Granada, Spain
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029, Madrid, Spain
| | | | - Alberto Muñoz
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029, Madrid, Spain
- Instituto de Investigaciones Biomédicas "Alberto Sols", CSIC, Universidad Autónoma de Madrid, 28029, Madrid, Spain
| | - José Manuel Rodríguez-Vargas
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, CIBERONC, 18016, Granada, Spain.
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029, Madrid, Spain.
| | - F Javier Oliver
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, CIBERONC, 18016, Granada, Spain.
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, 28029, Madrid, Spain.
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25
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The Significance of Targeting Poly (ADP-Ribose) Polymerase-1 in Pancreatic Cancer for Providing a New Therapeutic Paradigm. Int J Mol Sci 2021. [PMID: 33805293 DOI: 10.3390/ijms22073509.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Genome-wide studies focusing on elucidating the effects on cancer progression have enabled the consequent identification of a distinct subpopulation of pancreatic cancer cells with unstable genomic characteristics. Based on this background, deleterious changes by poly (adenosine diphosphate (ADP)-ribose) polymerase-1 (PARP)-1 have been concentrated in oncology. One of the critical functions of PARP-1 is the response to DNA damage, which plays a pivotal role in DNA repair in cancers. PARP-1 also has widespread functions that are essential for the survival and growth of cancer cells. It regulates oxidative stress in mitochondria through the regulation of superoxide and oxidation. PARP-1 is in charge of regulating mitosis, which is a crucial role in tumorigenesis and remodels histones and chromatin enzymes related to transcriptional regulation, causing alterations in epigenetic markers and chromatin structure. Given the significance of these processes, it can be understood that these processes in cancer cells are at the frontline of the pathogenetic changes required for cancer cell survival, and these contributions can result in malignant transformation. Therefore, this review addresses the current molecular biological features for understanding the multifactorial function of PARP-1 in pancreatic cancer related to the aforementioned roles, along with the summary of recent approaches with PARP-1 inhibition in clinical studies targeting pancreatic cancer. This understanding could help to embrace the importance of targeting PARP-1 in the treatment of pancreatic cancer, which may present the potential to find out a variety of research topics that can be both challenged clinically and non-clinically.
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26
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Jeong KY, Park MH. The Significance of Targeting Poly (ADP-Ribose) Polymerase-1 in Pancreatic Cancer for Providing a New Therapeutic Paradigm. Int J Mol Sci 2021; 22:ijms22073509. [PMID: 33805293 PMCID: PMC8037971 DOI: 10.3390/ijms22073509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/22/2021] [Accepted: 03/24/2021] [Indexed: 12/27/2022] Open
Abstract
Genome-wide studies focusing on elucidating the effects on cancer progression have enabled the consequent identification of a distinct subpopulation of pancreatic cancer cells with unstable genomic characteristics. Based on this background, deleterious changes by poly (adenosine diphosphate (ADP)-ribose) polymerase-1 (PARP)-1 have been concentrated in oncology. One of the critical functions of PARP-1 is the response to DNA damage, which plays a pivotal role in DNA repair in cancers. PARP-1 also has widespread functions that are essential for the survival and growth of cancer cells. It regulates oxidative stress in mitochondria through the regulation of superoxide and oxidation. PARP-1 is in charge of regulating mitosis, which is a crucial role in tumorigenesis and remodels histones and chromatin enzymes related to transcriptional regulation, causing alterations in epigenetic markers and chromatin structure. Given the significance of these processes, it can be understood that these processes in cancer cells are at the frontline of the pathogenetic changes required for cancer cell survival, and these contributions can result in malignant transformation. Therefore, this review addresses the current molecular biological features for understanding the multifactorial function of PARP-1 in pancreatic cancer related to the aforementioned roles, along with the summary of recent approaches with PARP-1 inhibition in clinical studies targeting pancreatic cancer. This understanding could help to embrace the importance of targeting PARP-1 in the treatment of pancreatic cancer, which may present the potential to find out a variety of research topics that can be both challenged clinically and non-clinically.
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27
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Lodhi T, Song YP, West C, Hoskin P, Choudhury A. Hypoxia and its Modification in Bladder Cancer: Current and Future Perspectives. Clin Oncol (R Coll Radiol) 2021; 33:376-390. [PMID: 33762140 DOI: 10.1016/j.clon.2021.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/01/2021] [Indexed: 02/06/2023]
Abstract
Radiotherapy plays an essential role in the curative treatment of muscle-invasive bladder cancer (MIBC). Hypoxia affects the response to MIBC radiotherapy, limiting radiocurability. Likewise, hypoxia influences MIBC genetic instability and malignant progression being associated with metastatic disease and a worse prognosis. Hypoxia identification in MIBC enables treatment stratification and the promise of improved survival. The most promising methods are histopathological markers such as necrosis; biomarkers of protein expression such as HIF-1α, GLUT-1 and CAIX; microRNAs; and novel mRNA signatures. Although hypoxia modification can take different forms, the gold standard remains carbogen and nicotinamide, which improve local control rates in bladder preservation and absolute overall survival with no significant increase in late toxicity. This is an exciting time for evolving therapies such as bioreductive agents, novel oxygen delivery techniques, immunotherapy and poly (ADP-ribose) polymerase 1 (PARP) inhibitors, all in development and representing upcoming trends in MIBC hypoxia modification. Whatever the future holds for hypoxia-modified radiotherapy, there is no doubt of its importance in MIBC. mRNA signatures provide an ideal platform for the selection of those with hypoxic tumours but are yet to qualified and integrated into the clinic. Future interventional trials will require biomarker stratification to ensure optimal treatment response to improve outcomes for patients with MIBC.
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Affiliation(s)
- T Lodhi
- Department of Clinical Oncology, The Christie NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Y P Song
- Department of Clinical Oncology, The Christie NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - C West
- Division of Cancer Sciences, University of Manchester, Manchester Academic Health Science Centre, The Christie NHS Foundation Trust, Manchester, UK
| | - P Hoskin
- Division of Cancer Sciences, University of Manchester, Manchester Academic Health Science Centre, The Christie NHS Foundation Trust, Manchester, UK; Cancer Centre, Mount Vernon Hospital, Northwood, UK
| | - A Choudhury
- Department of Clinical Oncology, The Christie NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK; Division of Cancer Sciences, University of Manchester, Manchester Academic Health Science Centre, The Christie NHS Foundation Trust, Manchester, UK.
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28
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PARP Inhibition Increases the Reliance on ATR/CHK1 Checkpoint Signaling Leading to Synthetic Lethality-An Alternative Treatment Strategy for Epithelial Ovarian Cancer Cells Independent from HR Effectiveness. Int J Mol Sci 2020; 21:ijms21249715. [PMID: 33352723 PMCID: PMC7766831 DOI: 10.3390/ijms21249715] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 12/20/2022] Open
Abstract
Poly (ADP-ribose) polymerase inhibitor (PARPi, olaparib) impairs the repair of DNA single-strand breaks (SSBs), resulting in double-strand breaks (DSBs) that cannot be repaired efficiently in homologous recombination repair (HRR)-deficient cancers such as BRCA1/2-mutant cancers, leading to synthetic lethality. Despite the efficacy of olaparib in the treatment of BRCA1/2 deficient tumors, PARPi resistance is common. We hypothesized that the combination of olaparib with anticancer agents that disrupt HRR by targeting ataxia telangiectasia and Rad3-related protein (ATR) or checkpoint kinase 1 (CHK1) may be an effective strategy to reverse ovarian cancer resistance to olaparib. Here, we evaluated the effect of olaparib, the ATR inhibitor AZD6738, and the CHK1 inhibitor MK8776 alone and in combination on cell survival, colony formation, replication stress response (RSR) protein expression, DNA damage, and apoptotic changes in BRCA2 mutated (PEO-1) and HRR-proficient BRCA wild-type (SKOV-3 and OV-90) cells. Combined treatment caused the accumulation of DNA DSBs. PARP expression was associated with sensitivity to olaparib or inhibitors of RSR. Synergistic effects were weaker when olaparib was combined with CHK1i and occurred regardless of the BRCA2 status of tumor cells. Because PARPi increases the reliance on ATR/CHK1 for genome stability, the combination of PARPi with ATR inhibition suppressed ovarian cancer cell growth independently of the efficacy of HRR. The present results were obtained at sub-lethal doses, suggesting the potential of these inhibitors as monotherapy as well as in combination with olaparib.
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29
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Sigorski D, Iżycka-Świeszewska E, Bodnar L. Poly(ADP-Ribose) Polymerase Inhibitors in Prostate Cancer: Molecular Mechanisms, and Preclinical and Clinical Data. Target Oncol 2020; 15:709-722. [PMID: 33044685 PMCID: PMC7701127 DOI: 10.1007/s11523-020-00756-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Genomic instability is one of the hallmarks of cancer. The incidence of genetic alterations in homologous recombination repair genes increases during cancer progression, and 20% of prostate cancers (PCas) have defects in DNA repair genes. Several somatic and germline gene alterations drive prostate cancer tumorigenesis, and the most important of these are BRCA2, BRCA1, ATM and CHEK2. There is a group of BRCAness tumours that share phenotypic and genotypic properties with classical BRCA-mutated tumours. Poly(ADP-ribose) polymerase inhibitors (PARPis) show synthetic lethality in cancer cells with impaired homologous recombination genes, and patients with these alterations are candidates for PARPi therapy. Androgen deprivation therapy is the mainstay of PCa therapy. PARPis decrease androgen signalling by interaction with molecular mechanisms of the androgen nuclear complex. The PROFOUND phase III trial, comparing olaparib with enzalutamide/abiraterone therapy, revealed increased radiological progression-free survival (rPFS) and overall survival (OS) among patients with metastatic castration-resistant prostate cancer (mCRPC) with BRCA1, BRCA2 or ATM mutations. The clinical efficacy of PARPis has been confirmed in ovarian, breast, pancreatic and recently also in a subset of PCa. There is growing evidence that molecular tumour boards are the future of the oncological therapeutic approach in prostate cancer. In this review, we summarise the data concerning the molecular mechanisms and preclinical and clinical data of PARPis in PCa.
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Affiliation(s)
- Dawid Sigorski
- Department of Oncology, Collegium Medicum, University of Warmia and Mazury, Al. Wojska Polskiego 37, 10-228, Olsztyn, Poland.
- Clinical Department of Oncology and Immuno-Oncology, Warmian-Masurian Cancer Center of The Ministry of The Interior and Administration's Hospital, Olsztyn, Poland.
| | - Ewa Iżycka-Świeszewska
- Department of Pathology and Neuropathology, Medical University of Gdańsk, Gdańsk, Poland
| | - Lubomir Bodnar
- Department of Oncology, Collegium Medicum, University of Warmia and Mazury, Al. Wojska Polskiego 37, 10-228, Olsztyn, Poland
- Clinical Department of Oncology and Immuno-Oncology, Warmian-Masurian Cancer Center of The Ministry of The Interior and Administration's Hospital, Olsztyn, Poland
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30
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Curtin N, Bai P. PARPs, PAR and NAD Metabolism and Their Inhibitors in Cancer. Cancers (Basel) 2020; 12:cancers12123494. [PMID: 33255262 PMCID: PMC7760776 DOI: 10.3390/cancers12123494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 10/19/2020] [Indexed: 01/15/2023] Open
Abstract
The role of poly(ADP-ribose) polymerase-1 (PARP1) in DNA repair and as a potential target for anticancer therapy has been under investigation for more than 50 years [...].
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Affiliation(s)
- Nicola Curtin
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
- Correspondence: (N.C.); (P.B.); Tel.: +36-52-412-345 (P.B.); Fax: +36-52-412-566 (P.B.)
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- MTA-DE Lendület Laboratory of Cellular Metabolism, 4032 Debrecen, Hungary
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Correspondence: (N.C.); (P.B.); Tel.: +36-52-412-345 (P.B.); Fax: +36-52-412-566 (P.B.)
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31
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Zebrafish Xenografts Unveil Sensitivity to Olaparib beyond BRCA Status. Cancers (Basel) 2020; 12:cancers12071769. [PMID: 32630796 PMCID: PMC7408583 DOI: 10.3390/cancers12071769] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/11/2020] [Accepted: 06/29/2020] [Indexed: 12/21/2022] Open
Abstract
Poly (ADP-ribose) polymerase (PARP) inhibition in BRCA-mutated cells results in an incapacity to repair DNA damage, leading to cell death caused by synthetic lethality. Within the treatment options for advanced triple negative breast cancer, the PARP inhibitor olaparib is only given to patients with BRCA1/2 mutations. However, these patients may show resistance to this drug and BRCA1/2 wild-type tumors can show a striking sensitivity, making BRCA status a poor biomarker for treatment choice. Aiming to investigate if the zebrafish model can discriminate sensitivities to olaparib, we developed zebrafish xenografts with different BRCA status and measured tumor response to treatment, as well as its impact on angiogenesis and metastasis. When challenged with olaparib, xenografts revealed sensitivity phenotypes independent of BRCA. Moreover, its combination with ionizing radiation increased the cytotoxic effects, showing potential as a combinatorial regimen. In conclusion, we show that the zebrafish xenograft model may be used as a sensitivity profiling platform for olaparib in monotherapy or in combinatorial regimens. Hence, this model presents as a promising option for the future establishment of patient-derived xenografts for personalized medicine approaches beyond BRCA status.
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