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Madariaga A, Lheureux S, Oza AM. Tailoring Ovarian Cancer Treatment: Implications of BRCA1/2 Mutations. Cancers (Basel) 2019; 11:E416. [PMID: 30909618 PMCID: PMC6468364 DOI: 10.3390/cancers11030416] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/13/2019] [Accepted: 03/18/2019] [Indexed: 02/07/2023] Open
Abstract
High grade serous ovarian cancer (HGSOC) is the most common epithelial ovarian cancer, harbouring more than 20% germline or somatic mutations in the tumour suppressor genes BRCA1 and BRCA2. These genes are involved in both DNA damage repair process via homologous recombination (HR) and transcriptional regulation. BRCA mutation confers distinct characteristics, including an increased response to DNA-damaging agents, such us platinum chemotherapy and poly-ADP ribose polymerase inhibitors (PARPi). However, several mechanisms of resistance to these agents have been described, including increased HR capacity through reverse BRCA mutations, non-homologous end-joint (NHEJ) repair alterations and drug efflux pumps. Current treatments of ovarian cancer including surgery, chemotherapy, targeted treatment and maintenance strategies, as well as resistance mechanisms will be reviewed, focusing on future trends with respect to BRCA mutation carriers.
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Affiliation(s)
- Ainhoa Madariaga
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
| | - Stephanie Lheureux
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
| | - Amit M Oza
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
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Abstract
High grade serous ovarian cancer (HGSOC) is the most common epithelial ovarian cancer, harbouring more than 20% germline or somatic mutations in the tumour suppressor genes BRCA1 and BRCA2. These genes are involved in both DNA damage repair process via homologous recombination (HR) and transcriptional regulation. BRCA mutation confers distinct characteristics, including an increased response to DNA-damaging agents, such us platinum chemotherapy and poly-ADP ribose polymerase inhibitors (PARPi). However, several mechanisms of resistance to these agents have been described, including increased HR capacity through reverse BRCA mutations, non-homologous end-joint (NHEJ) repair alterations and drug efflux pumps. Current treatments of ovarian cancer including surgery, chemotherapy, targeted treatment and maintenance strategies, as well as resistance mechanisms will be reviewed, focusing on future trends with respect to BRCA mutation carriers.
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Madariaga A, Lheureux S, Oza AM. Tailoring Ovarian Cancer Treatment: Implications of BRCA1/2 Mutations. Cancers (Basel) 2019. [PMID: 30909618 DOI: 10.3390/cancers11030416]+[] [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
High grade serous ovarian cancer (HGSOC) is the most common epithelial ovarian cancer, harbouring more than 20% germline or somatic mutations in the tumour suppressor genes BRCA1 and BRCA2. These genes are involved in both DNA damage repair process via homologous recombination (HR) and transcriptional regulation. BRCA mutation confers distinct characteristics, including an increased response to DNA-damaging agents, such us platinum chemotherapy and poly-ADP ribose polymerase inhibitors (PARPi). However, several mechanisms of resistance to these agents have been described, including increased HR capacity through reverse BRCA mutations, non-homologous end-joint (NHEJ) repair alterations and drug efflux pumps. Current treatments of ovarian cancer including surgery, chemotherapy, targeted treatment and maintenance strategies, as well as resistance mechanisms will be reviewed, focusing on future trends with respect to BRCA mutation carriers.
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Affiliation(s)
- Ainhoa Madariaga
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
| | - Stephanie Lheureux
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
| | - Amit M Oza
- Division of Medical Oncology & Hematology, Princess Margaret Cancer Center, Toronto, ON M5G 2M9, Canada.
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Integrated Approaches for the Use of Large Datasets to Identify Rational Therapies for the Treatment of Lung Cancers. Cancers (Basel) 2019; 11:cancers11020239. [PMID: 30791396 PMCID: PMC6406670 DOI: 10.3390/cancers11020239] [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: 01/11/2019] [Revised: 02/07/2019] [Accepted: 02/14/2019] [Indexed: 11/30/2022] Open
Abstract
The benefit and burden of contemporary techniques for the molecular characterization of samples is the vast amount of data generated. In the era of “big data”, it has become imperative that we develop multi-disciplinary teams combining scientists, clinicians, and data analysts. In this review, we discuss a number of approaches developed by our University of Texas MD Anderson Lung Cancer Multidisciplinary Program to process and utilize such large datasets with the goal of identifying rational therapeutic options for biomarker-driven patient subsets. Large integrated datasets such as the The Cancer Genome Atlas (TCGA) for patient samples and the Cancer Cell Line Encyclopedia (CCLE) for tumor derived cell lines include genomic, transcriptomic, methylation, miRNA, and proteomic profiling alongside clinical data. To best use these datasets to address urgent questions such as whether we can define molecular subtypes of disease with specific therapeutic vulnerabilities, to quantify states such as epithelial-to-mesenchymal transition that are associated with resistance to treatment, or to identify potential therapeutic agents in models of cancer that are resistant to standard treatments required the development of tools for systematic, unbiased high-throughput analysis. Together, such tools, used in a multi-disciplinary environment, can be leveraged to identify novel treatments for molecularly defined subsets of cancer patients, which can be easily and rapidly translated from benchtop to bedside.
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Pilié PG, Tang C, Mills GB, Yap TA. State-of-the-art strategies for targeting the DNA damage response in cancer. Nat Rev Clin Oncol 2019; 16:81-104. [PMID: 30356138 PMCID: PMC8327299 DOI: 10.1038/s41571-018-0114-z] [Citation(s) in RCA: 702] [Impact Index Per Article: 140.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Genomic instability is a key hallmark of cancer that arises owing to defects in the DNA damage response (DDR) and/or increased replication stress. These alterations promote the clonal evolution of cancer cells via the accumulation of driver aberrations, including gene copy-number changes, rearrangements and mutations; however, these same defects also create vulnerabilities that are relatively specific to cancer cells, which could potentially be exploited to increase the therapeutic index of anticancer treatments and thereby improve patient outcomes. The discovery that BRCA-mutant cancer cells are exquisitely sensitive to inhibition of poly(ADP-ribose) polymerase has ushered in a new era of research on biomarker-driven synthetic lethal treatment strategies for different cancers. The therapeutic landscape of antitumour agents targeting the DDR has rapidly expanded to include inhibitors of other key mediators of DNA repair and replication, such as ATM, ATR, CHK1 and CHK2, DNA-PK and WEE1. Efforts to optimize these therapies are ongoing across a range of cancers, involving the development of predictive biomarker assays of responsiveness (beyond BRCA mutations), assessment of the mechanisms underlying intrinsic and acquired resistance, and evaluation of rational, tolerable combinations with standard-of-care treatments (such as chemotherapeutics and radiation), novel molecularly targeted agents and immune-checkpoint inhibitors. In this Review, we discuss the current status of anticancer therapies targeting the DDR.
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Affiliation(s)
- Patrick G Pilié
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chad Tang
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gordon B Mills
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Khalifa Institute for Personalized Cancer Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Timothy A Yap
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- Khalifa Institute for Personalized Cancer Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- The Institute for Applied Cancer Science, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Guney Eskiler G, Cecener G, Egeli U, Tunca B. BMN 673 (talazoparib): A potent PARP inhibitor for triple negative breast cancer with different genetic profile. J Biochem Mol Toxicol 2019; 33:e22286. [PMID: 30672063 DOI: 10.1002/jbt.22286] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 12/27/2018] [Indexed: 12/16/2022]
Abstract
The objective of the present study was to elucidate the effect of BMN 673 (talozoparib) on BRCA1 mutant (HCC1937) and wild-type (MDA-MB-231) triple negative breast cancer (TNBC). The in vitro cytotoxicity results indicated that BMN 673 had considerable inhibitory effects on HCC1937 and MDA-MB-231 cell lines by inducing apoptosis, multicaspase activity, G2/M arrest, and altering the expression levels of apoptosis-related genes (P < 0.01). Additionally, BMN 673 indicated no toxicity on MCF-10A control cells until a certain concentration and incubation time. However, BMN 673, a novel and selective poly ADP ribose polymerase inhibitor, was more potent in TNBC cells bearing BRCA1 mutant than those with wild-type BRCA1. In conclusion, our study, for the first time, demonstrated a molecular mechanism of the induction of apoptosis by BMN 673 in TNBC with different genetic profile. However, further investigations regarding the exact molecular mechanisms underlying BMN 673-inducing apoptotic death and gene-cell line associations are required.
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Affiliation(s)
- Gamze Guney Eskiler
- Department of Medical Biology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Gulsah Cecener
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Unal Egeli
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Berrin Tunca
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
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Dawson JC, Warchal SJ, Carragher NO. Drug Screening Platforms and RPPA. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1188:203-226. [PMID: 31820390 DOI: 10.1007/978-981-32-9755-5_11] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Since its inception as a scalable and cost-effective method for precise quantification of the abundance of multiple protein analytes and post-translational epitopes across large sample sets, reverse phase protein array (RPPA) has been utilized as a drug discovery tool. Key RPPA drug discovery applications include primary screening of abundance or activation state of nominated protein targets, secondary screening for toxicity and selectivity, mechanism-of-action profiling, biomarker discovery, and drug combination discovery. In recent decades, drug discovery strategies have evolved dramatically in response to continual advances in technology platforms supporting high-throughput screening, structure-based drug design, new therapeutic modalities, and increasingly more complex and disease-relevant cell-based and in vivo preclinical models of disease. Advances in biological laboratory capabilities in drug discovery are complemented by significant developments in bioinformatics and computational approaches for integrating large complex datasets. Bioinformatic and computational analysis of integrated molecular, pathway network and phenotypic datasets enhance multiple stages of the drug discovery process and support more informative drug target hypothesis generation and testing. In this chapter we discuss and present examples demonstrating how the latest advances in RPPA complement and integrate with other emerging drug screening platforms to support a new era of more informative and evidence-led drug discovery strategies.
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Affiliation(s)
- John C Dawson
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, Scotland, UK
| | - Scott J Warchal
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, Scotland, UK
| | - Neil O Carragher
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, Scotland, UK.
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Azenha D, Lopes MC, Martins TC. Claspin: From replication stress and DNA damage responses to cancer therapy. DNA Repair (Amst) 2019; 115:203-246. [DOI: 10.1016/bs.apcsb.2018.10.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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59
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Pezzuto F, Fortarezza F, Lunardi F, Calabrese F. Are there any theranostic biomarkers in small cell lung carcinoma? J Thorac Dis 2019; 11:S102-S112. [PMID: 30775033 DOI: 10.21037/jtd.2018.12.14] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Small cell lung cancer (SCLC), an aggressive lung tumour with a poor prognosis, has a high load of somatic mutations, mainly induced by tobacco carcinogens given the strong association with smoking. Advances in genomic, epigenetic and proteomic profiling have significantly improved our understanding of the molecular and cellular biology of SCLC. Given the high mutational burden of SCLC the immune microenvironment is another exciting area under investigation even if it seems to be quite distinct from that of other solid tumours. In this review we will outline the current progress in molecular etiology of SCLC mentioning some key markers considered promising theranostic biomarkers.
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Affiliation(s)
- Federica Pezzuto
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova Medical School, Padova, Italy
| | - Francesco Fortarezza
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova Medical School, Padova, Italy
| | - Francesca Lunardi
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova Medical School, Padova, Italy
| | - Fiorella Calabrese
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova Medical School, Padova, Italy
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Hopkins TA, Ainsworth WB, Ellis PA, Donawho CK, DiGiammarino EL, Panchal SC, Abraham VC, Algire MA, Shi Y, Olson AM, Johnson EF, Wilsbacher JL, Maag D. PARP1 Trapping by PARP Inhibitors Drives Cytotoxicity in Both Cancer Cells and Healthy Bone Marrow. Mol Cancer Res 2018; 17:409-419. [PMID: 30429212 DOI: 10.1158/1541-7786.mcr-18-0138] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 08/31/2018] [Accepted: 10/23/2018] [Indexed: 11/16/2022]
Abstract
PARP inhibitors have recently been approved as monotherapies for the treatment of recurrent ovarian cancer and metastatic BRCA-associated breast cancer, and ongoing studies are exploring additional indications and combinations with other agents. PARP inhibitors trap PARP onto damaged chromatin when combined with temozolomide and methyl methanesulfonate, but the clinical relevance of these findings remains unknown. PARP trapping has thus far been undetectable in cancer cells treated with PARP inhibitors alone. Here, we evaluate the contribution of PARP trapping to the tolerability and efficacy of PARP inhibitors in the monotherapy setting. We developed a novel implementation of the proximity ligation assay to detect chromatin-trapped PARP1 at single-cell resolution with higher sensitivity and throughput than previously reported methods. We further demonstrate that the PARP inhibitor-induced trapping appears to drive single-agent cytotoxicity in healthy human bone marrow, indicating that the toxicity of trapped PARP complexes is not restricted to cancer cells with homologous recombination deficiency. Finally, we show that PARP inhibitors with dramatically different trapping potencies exhibit comparable tumor growth inhibition at MTDs in a xenograft model of BRCA1-mutant triple-negative breast cancer. These results are consistent with emerging clinical data and suggest that the inverse relationship between trapping potency and tolerability may limit the potential therapeutic advantage of potent trapping activity. IMPLICATIONS: PARP trapping contributes to single-agent cytotoxicity of PARP inhibitors in both cancer cells and healthy bone marrow, and the therapeutic advantage of potent trapping activity appears to be limited.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Yan Shi
- AbbVie, Inc., North Chicago, Illinois
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Atrafi F, Groen HJ, Byers LA, Garralda E, Lolkema MP, Sangha RS, Viteri S, Chae YK, Camidge DR, Gabrail NY, Hu B, Tian T, Nuthalapati S, Hoening E, He L, Komarnitsky P, Calles A. A Phase I Dose-Escalation Study of Veliparib Combined with Carboplatin and Etoposide in Patients with Extensive-Stage Small Cell Lung Cancer and Other Solid Tumors. Clin Cancer Res 2018; 25:496-505. [DOI: 10.1158/1078-0432.ccr-18-2014] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/04/2018] [Accepted: 10/11/2018] [Indexed: 11/16/2022]
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Lallo A, Frese KK, Morrow CJ, Sloane R, Gulati S, Schenk MW, Trapani F, Simms N, Galvin M, Brown S, Hodgkinson CL, Priest L, Hughes A, Lai Z, Cadogan E, Khandelwal G, Simpson KL, Miller C, Blackhall F, O'Connor MJ, Dive C. The Combination of the PARP Inhibitor Olaparib and the WEE1 Inhibitor AZD1775 as a New Therapeutic Option for Small Cell Lung Cancer. Clin Cancer Res 2018; 24:5153-5164. [PMID: 29941481 DOI: 10.1158/1078-0432.ccr-17-2805] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 04/05/2018] [Accepted: 06/20/2018] [Indexed: 12/12/2022]
Abstract
Purpose: Introduced in 1987, platinum-based chemotherapy remains standard of care for small cell lung cancer (SCLC), a most aggressive, recalcitrant tumor. Prominent barriers to progress are paucity of tumor tissue to identify drug targets and patient-relevant models to interrogate novel therapies. Following our development of circulating tumor cell patient-derived explants (CDX) as models that faithfully mirror patient disease, here we exploit CDX to examine new therapeutic options for SCLC.Experimental Design: We investigated the efficacy of the PARP inhibitor olaparib alone or in combination with the WEE1 kinase inhibitor AZD1775 in 10 phenotypically distinct SCLC CDX in vivo and/or ex vivo These CDX represent chemosensitive and chemorefractory disease including the first reported paired CDX generated longitudinally before treatment and upon disease progression.Results: There was a heterogeneous depth and duration of response to olaparib/AZD1775 that diminished when tested at disease progression. However, efficacy of this combination consistently exceeded that of cisplatin/etoposide, with cures in one CDX model. Genomic and protein analyses revealed defects in homologous recombination repair genes and oncogenes that induce replication stress (such as MYC family members), predisposed CDX to combined olaparib/AZD1775 sensitivity, although universal predictors of response were not noted.Conclusions: These preclinical data provide a strong rationale to trial this combination in the clinic informed by prevalent, readily accessed circulating tumor cell-based biomarkers. New therapies will be evaluated in SCLC patients after first-line chemotherapy, and our data suggest that the combination of olaparib/AZD1775 should be used as early as possible and before disease relapse. Clin Cancer Res; 24(20); 5153-64. ©2018 AACR.
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Affiliation(s)
- Alice Lallo
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Kristopher K Frese
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Christopher J Morrow
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Robert Sloane
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Sakshi Gulati
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Maximillian W Schenk
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Francesca Trapani
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Nicole Simms
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Melanie Galvin
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Stewart Brown
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Cassandra L Hodgkinson
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Lynsey Priest
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Adina Hughes
- Oncology Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Zhongwu Lai
- Oncology Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Waltham, Massachusetts
| | - Elaine Cadogan
- Oncology Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Cambridge, United Kingdom
| | - Garima Khandelwal
- RNA Biology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Kathryn L Simpson
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Crispin Miller
- RNA Biology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom
| | - Fiona Blackhall
- Institute of Cancer Sciences, University of Manchester, and Christie NHS Foundation Trust, Manchester, United Kingdom
| | - Mark J O'Connor
- Oncology Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Cambridge, United Kingdom.
| | - Caroline Dive
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, United Kingdom.
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Synthetically Lethal BMN 673 (Talazoparib) Loaded Solid Lipid Nanoparticles for BRCA1 Mutant Triple Negative Breast Cancer. Pharm Res 2018; 35:218. [DOI: 10.1007/s11095-018-2502-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Accepted: 09/15/2018] [Indexed: 11/24/2022]
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Jiang Y, Dai H, Li Y, Yin J, Guo S, Lin SY, McGrail DJ. PARP inhibitors synergize with gemcitabine by potentiating DNA damage in non-small-cell lung cancer. Int J Cancer 2018; 144:1092-1103. [PMID: 30152517 DOI: 10.1002/ijc.31770] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 06/28/2018] [Accepted: 07/20/2018] [Indexed: 12/12/2022]
Abstract
Poly (ADP-ribose) polymerase (PARP) inhibitors have demonstrated great promise in the treatment of patients with deficiencies in homologous recombination (HR) DNA repair, such as those with loss of BRCA1 or BRCA2 function. However, emerging studies suggest that PARP inhibition can also target HR-competent cancers, such as non-small-cell lung cancer (NSCLC), and that the therapeutic effect of PARP inhibition may be improved by combination with chemotherapy agents. In our study, it was found that PARP inhibitors talazoparib (BMN-673) and olaparib (AZD-2281) both had synergistic activity with the common first-line chemotherapeutic gemcitabine in a panel of lung cancer cell lines. Furthermore, the combination demonstrated significant in vivo antitumor activity in an H23 xenograft model of NSCLC compared to either agent as monotherapy. This synergism occurred without loss of HR repair efficiency. Instead, the combination induced synergistic single-strand DNA breaks, leading to accumulation of toxic double-strand DNA lesions in vitro and in vivo. Our study elucidates the underlying mechanisms of synergistic activity of PARP inhibitors and gemcitabine, providing a strong motivation to pursue this combination as an improved therapeutic regimen.
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Affiliation(s)
- Yu Jiang
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX.,Department of Respiratory Medicine, The University-Town Hospital of Chongqing Medical University, Chongqing, China
| | - Hui Dai
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Yang Li
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Jun Yin
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Shuliang Guo
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Shiaw-Yih Lin
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Daniel J McGrail
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
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65
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Trabectedin and olaparib in patients with advanced and non-resectable bone and soft-tissue sarcomas (TOMAS): an open-label, phase 1b study from the Italian Sarcoma Group. Lancet Oncol 2018; 19:1360-1371. [PMID: 30217671 DOI: 10.1016/s1470-2045(18)30438-8] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/03/2018] [Accepted: 06/04/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Trabectedin is an alkylating drug with a unique mechanism of action causing single-strand and double-strand DNA breaks that activate DNA damage-response pathways. Based on our preclinical data, we hypothesised that poly(ADP-ribose) polymerase 1 (PARP1) inhibitors might be an ideal partner of trabectedin and aimed to assess the safety, identify the recommended phase 2 dose, and explore preliminary signs of activity of trabectedin and olaparib combination treatment in patients with bone and soft-tissue sarcoma. METHODS We did an open-label, multicentre, phase 1b study, recruiting patients from the national Italian sarcoma network aged 18 years and older with histologically confirmed bone and soft-tissue sarcoma progressing after standard treatments with Eastern Cooperative Oncology Group performance status of 1 or less. In a classic 3 + 3 design, patients received a 24 h infusion of trabectedin on day 1 and olaparib orally twice a day in 21-day cycles across six dose levels (trabectedin 0·675-1·3 mg/m2 every 3 weeks; olaparib 100-300 mg twice a day from day 1 to 21). Intermediate dose levels were permitted to improve safety and tolerability. The primary endpoint was determination of the recommended phase 2 dose (the maximum tolerated dose). Safety and antitumour activity were assessed in all patients who received at least one dose of the study drugs. We report the results of the dose-escalation and dose-expansion cohorts. The trial is still active but closed to enrolment, and follow-up for patients who completed treatment is ongoing. This trial is registered with ClinicalTrials.gov, number NCT02398058. FINDINGS Between Nov 17, 2014, and Jan 30, 2017, of 54 patients assessed for eligibility, we enrolled 50 patients: 28 patients in the dose-escalation cohort and 22 patients in the dose-expansion cohort. Patients received a median of four cycles of treatment (IQR 2-6; range 1-17 [the patients who received the highest number of cycles are still on treatment]) with a median follow-up of 10 months (IQR 5-23). Considering all dose levels, the most common grade 3-4 adverse events were lymphopenia (32 [64%] of 50 patients), neutropenia (31 [62%]), thrombocytopenia (14 [28%]), anaemia (13 [26%]), hypophosphataemia (20 [40%]), and alanine aminotransferase concentration increase (9 [18%]). No treatment-related life-threatening adverse events or deaths occurred. One (2%) patient interrupted treatment without progression without reporting any specific toxicity. Observed dose-limiting toxicities were thrombocytopenia, neutropenia for more than 7 days, and febrile neutropenia. We selected intermediate dose level 4b (trabectedin 1·1 mg/m2 every 3 weeks plus olaparib 150 mg twice a day) as the recommended phase 2 dose. Seven (14%; 95% CI 6-27) of 50 patients achieved a partial response according to Response Evaluation Criteria In Solid Tumors 1.1. INTERPRETATION Trabectedin and olaparib in combination showed manageable toxicities at active dose levels for both drugs. Preliminary data on antitumour activity are encouraging. Two dedicated phase 2 studies are planned to assess activity of this combination in both ovarian cancer (EudraCT2018-000230-35) and soft-tissue sarcomas. FUNDING Italian Association for Cancer Research, Italian Sarcoma Group, Foundation for Research on Musculoskeletal and Rare Tumors, and Italian Ministry of Health.
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Pietanza MC, Waqar SN, Krug LM, Dowlati A, Hann CL, Chiappori A, Owonikoko TK, Woo KM, Cardnell RJ, Fujimoto J, Long L, Diao L, Wang J, Bensman Y, Hurtado B, de Groot P, Sulman EP, Wistuba II, Chen A, Fleisher M, Heymach JV, Kris MG, Rudin CM, Byers LA. Randomized, Double-Blind, Phase II Study of Temozolomide in Combination With Either Veliparib or Placebo in Patients With Relapsed-Sensitive or Refractory Small-Cell Lung Cancer. J Clin Oncol 2018; 36:2386-2394. [PMID: 29906251 PMCID: PMC6085179 DOI: 10.1200/jco.2018.77.7672] [Citation(s) in RCA: 264] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Purpose Both temozolomide (TMZ) and poly (ADP-ribose) polymerase (PARP) inhibitors are active in small-cell lung cancer (SCLC). This phase II, randomized, double-blind study evaluated whether addition of the PARP inhibitor veliparib to TMZ improves 4-month progression-free survival (PFS). Patients and Methods A total of 104 patients with recurrent SCLC were randomly assigned 1:1 to oral veliparib or placebo 40 mg twice daily, days 1 to 7, and oral TMZ 150 to 200 mg/m2/day, days 1 to 5, of a 28-day cycle until disease progression, unacceptable toxicity, or withdrawal of consent. Response was determined by imaging at weeks 4 and 8, and every 8 weeks thereafter. Improvement in PFS at 4 months was the primary end point. Secondary objectives included overall response rate (ORR), overall survival (OS), and safety and tolerability of veliparib with TMZ. Exploratory objectives included PARP-1 and SLFN11 immunohistochemical expression, MGMT promoter methylation, and circulating tumor cell quantification. Results No significant difference in 4-month PFS was noted between TMZ/veliparib (36%) and TMZ/placebo (27%; P = .19); median OS was also not improved significantly with TMZ/veliparib (8.2 months; 95% CI, 6.4 to 12.2 months; v 7.0 months; 95% CI, 5.3 to 9.5 months; P = .50). However, ORR was significantly higher in patients receiving TMZ/veliparib compared with TMZ/placebo (39% v 14%; P = .016). Grade 3/4 thrombocytopenia and neutropenia more commonly occurred with TMZ/veliparib: 50% versus 9% and 31% versus 7%, respectively. Significantly prolonged PFS (5.7 v 3.6 months; P = .009) and OS (12.2 v 7.5 months; P = .014) were observed in patients with SLFN11-positive tumors treated with TMZ/veliparib. Conclusion Four-month PFS and median OS did not differ between the two arms, whereas a significant improvement in ORR was observed with TMZ/veliparib. SLFN11 expression was associated with improved PFS and OS in patients receiving TMZ/veliparib, suggesting a promising biomarker of PARP-inhibitor sensitivity in SCLC.
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Affiliation(s)
- M. Catherine Pietanza
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Saiama N. Waqar
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Lee M. Krug
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Afshin Dowlati
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Christine L. Hann
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Alberto Chiappori
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Taofeek K. Owonikoko
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Kaitlin M. Woo
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Robert J. Cardnell
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Junya Fujimoto
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Lihong Long
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Lixia Diao
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Jing Wang
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Yevgeniva Bensman
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Brenda Hurtado
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Patricia de Groot
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Erik P. Sulman
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Ignacio I. Wistuba
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Alice Chen
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Martin Fleisher
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - John V. Heymach
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Mark G. Kris
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Charles M. Rudin
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Lauren Averett Byers
- M. Catherine Pietanza, Lee M. Krug, Mark G. Kris, and Charles M. Rudin, Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College; Kaitlin M. Woo, Yevgeniva Bensman, Brenda Hurtado, and Martin Fleisher, Memorial Sloan Kettering Cancer Center, New York, NY; Saiama N. Waqar, Washington University School of Medicine in St. Louis, St Louis, MO; Afshin Dowlati, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH; Christine L. Hann, Johns Hopkins University, Baltimore; Alice Chen, National Institutes of Health, Bethesda, MD; Alberto Chiappori, H. Lee Moffitt Cancer Center, Tampa, FL; Taofeek K. Owonikoko, Emory University, Atlanta, GA; and Robert J. Cardnell, Junya Fujimoto, Lihong Long, Lixia Diao, Jing Wang, Patricia de Groot, Erik P. Sulman, Ignacio I. Wistuba, John V. Heymach, and Lauren Averett Byers, The University of Texas MD Anderson Cancer Center, Houston, TX
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Mathé E, Hays JL, Stover DG, Chen JL. The Omics Revolution Continues: The Maturation of High-Throughput Biological Data Sources. Yearb Med Inform 2018; 27:211-222. [PMID: 30157526 PMCID: PMC6115204 DOI: 10.1055/s-0038-1667085] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
OBJECTIVE The aim is to provide a comprehensive review of state-of-the art omics approaches, including proteomics, metabolomics, cell-free DNA, and patient cohort matching algorithms in precision oncology. METHODS In the past several years, the cancer informatics revolution has been the beneficiary of a data explosion. Different complementary omics technologies have begun coming into their own to provide a more nuanced view of the patient-tumor interaction beyond that of DNA alterations. A combined approach is beneficial to the patient as nearly all new cancer therapeutics are designed with an omics biomarker in mind. Proteomics and metabolomics provide us with a means of assaying in real-time the response of the tumor to treatment. Circulating cell-free DNA may allow us to better understand tumor heterogeneity and interactions with the host genome. RESULTS Integration of increasingly available omics data increases our ability to segment patients into smaller and smaller cohorts, thereby prompting a shift in our thinking about how to use these omics data. With large repositories of patient omics-outcomes data being generated, patient cohort matching algorithms have become a dominant player. CONCLUSIONS The continued promise of precision oncology is to select patients who are most likely to benefit from treatment and to avoid toxicity for those who will not. The increased public availability of omics and outcomes data in patients, along with improved computational methods and resources, are making precision oncology a reality.
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Affiliation(s)
- Ewy Mathé
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH, USA
| | - John L. Hays
- Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
- Department of Obstetrics and Gynecology, The Ohio State University, Columbus, OH, USA
| | - Daniel G. Stover
- Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - James L. Chen
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH, USA
- Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
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Liu Y, Fan J, Yang H, Xu E, Wei W, Zhang Y, Liu S. Detection of PARP-1 activity based on hyperbranched-poly (ADP-ribose) polymers responsive current in artificial nanochannels. Biosens Bioelectron 2018; 113:136-141. [PMID: 29754052 DOI: 10.1016/j.bios.2018.05.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 04/30/2018] [Accepted: 05/03/2018] [Indexed: 11/16/2022]
Abstract
The cellular enzyme poly ADP (ADP: adenosine diphosphate)-ribose polymerase-1 (PARP-1) plays key roles in DNA repair. Its activity is closely related to various cancer developments. Detection of PARP-1 activity is significant, however, it is relatively difficult since it lacks superiority property that can be used to detect conveniently. PARP-1 lead to the synthesis of hyperbranched poly (ADP-ribose) polymers (PAR) using nicotinamide adenine dinucleotide (NAD+) as substrate during DNA damage repairing. In this paper, we found that hyper-branched PAR increased the steric hindrance and reduced the flux of probe ions effectively in anodic aluminum oxide (AAO) nanochannels. To the best of our knowledge, few papers have been reported that hyper-branched polymer has the similar effects in nanochannels as G-quadruplex DNA. Thus, a novel and simple strategy for PARP-1 detection has been proposed due to its great impacts on the diffusion flux of ferricyanide in AAO. It is also proved that electrostatic repulsion is another important factor to influence the current. The method is label-free, simple and sensitive. Quantitative detection of PARP-1 activity was achieved with the detection limit of 0.006 U, which is lower or comparable to the most reported methods. The method has good accuracy and reproducibility. The strategy has been used to detect PARP-1 activity in real breast cancer cells and to evaluate PARP-1 inhibitors with satisfactory results, indicating that it is a potential powerful tool for clinical diagnosis and drug development in the future.
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Affiliation(s)
- Yong Liu
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Jiahui Fan
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Haitang Yang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Ensheng Xu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Wei Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Yuanjian Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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Tsoukalas N, Aravantinou-Fatorou E, Baxevanos P, Tolia M, Tsapakidis K, Galanopoulos M, Liontos M, Kyrgias G. Advanced small cell lung cancer (SCLC): new challenges and new expectations. ANNALS OF TRANSLATIONAL MEDICINE 2018; 6:145. [PMID: 29862234 DOI: 10.21037/atm.2018.03.31] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Small cell lung cancer (SCLC) remains one of the most lethal malignancies and a major health riddle. The therapeutic options are limited. The combination of etoposide or irinotecan with platinum chemotherapy is the standard of care at any stage. The last decade systemic efforts have been done to reveal specific therapeutic targets for small cell lung carcinomas. In this review, we focus on the new therapeutic strategies of SCLC, including immune-related treatment that may change the prognosis of the disease. The main genetic mutations observed in SCLC are TP53 and RB1 mutations; however, it is well known that these molecules are not yet targetable. In recent years, research has revealed other frequent genetic alterations and activated signaling pathways that might be an effective treatment target. Loss of PTEN, activating PI3K mutations, inhibition of NOTCH pathway and aurora kinase activation are among them. Moreover, FDGFR1 amplification, activation of the Hedgehog pathway and repair-protein PARP1 seem to participate in SCLC tumorigenesis. These new findings have identified some interesting targets. Moreover, immunotherapy tries to find its place in the treatment of SCLC. Immune checkpoint inhibitors are under investigation in phase I to III clinical trials. We hope that in next years the treatment of SCLC patients will be improved with the administration of targeting therapy and the introduction of immunotherapy.
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Affiliation(s)
| | | | | | - Maria Tolia
- Department of Radiotherapy-Radiation Oncology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Konstantinos Tsapakidis
- Department of Oncology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | | | - Michail Liontos
- Department of Oncology, Alexandra General Hospital, Athens, Greece
| | - George Kyrgias
- Department of Radiotherapy-Radiation Oncology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
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70
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Ferrarotto R, Cardnell R, Su S, Diao L, Eterovic AK, Prieto V, Morrisson WH, Wang J, Kies MS, Glisson BS, Byers LA, Bell D. Poly ADP-ribose polymerase-1 as a potential therapeutic target in Merkel cell carcinoma. Head Neck 2018; 40:1676-1684. [PMID: 29570891 DOI: 10.1002/hed.25146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 12/04/2017] [Accepted: 02/05/2018] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Patients with metastatic Merkel cell carcinoma are treated similarly to small cell lung cancer (SCLC). Poly ADP-ribose polymerase-1 (PARP1) is overexpressed in SCLC and response to PARP inhibitors have been reported in patients with SCLC. Our study explores PARP as a therapeutic target in Merkel cell carcinoma. METHODS We evaluated PARP1 expression and Merkel cell polyomavirus (MCPyV) in 19 patients with Merkel cell carcinoma. Target exome-sequencing was performed in 14 samples. Sensitivity to olaparib was tested in 4 Merkel cell carcinoma cell lines. RESULTS Most Merkel cell carcinomas (74%) express PARP1 at high levels. Mutations in DNA-damage repair genes were identified in 9 samples (64%), occurred exclusively in head neck primaries, and correlated with TP53/RB1 mutations. The TP53/RB1 mutations were more frequent in MCPyV-negative tumors. Sensitivity to olaparib was seen in the Merkel cell carcinoma line with highest PARP1 expression. CONCLUSION Based on PARP1 overexpression, DNA-damage repair gene mutations, platinum sensitivity, and activity of olaparib in a Merkel cell carcinoma line, clinical trials with PARP inhibitors are warranted in Merkel cell carcinoma.
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Affiliation(s)
- Renata Ferrarotto
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Robert Cardnell
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Shirley Su
- Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lixia Diao
- Department of Bioinformatics, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - A Karina Eterovic
- Department of System Biology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Victor Prieto
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - William H Morrisson
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jing Wang
- Department of Bioinformatics, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Merrill S Kies
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Bonnie S Glisson
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lauren Averett Byers
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Diana Bell
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, Texas
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71
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Zakharenko AL, Lebedeva NA, Lavrik OI. DNA Repair Enzymes as Promising Targets in Oncotherapy. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1068162017060140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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72
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Gomez DR, Byers LA, Nilsson M, Diao L, Wang J, Li L, Tong P, Hofstad M, Saigal B, Wistuba I, Kalhor N, Swisher S, Fan Y, Hong WK, Suraokar M, Behrens C, Moran C, Heymach JV. Integrative proteomic and transcriptomic analysis provides evidence for TrkB (NTRK2) as a therapeutic target in combination with tyrosine kinase inhibitors for non-small cell lung cancer. Oncotarget 2018; 9:14268-14284. [PMID: 29581842 PMCID: PMC5865668 DOI: 10.18632/oncotarget.24361] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 11/10/2017] [Indexed: 02/06/2023] Open
Abstract
While several molecular targets have been identified for adenocarcinoma (ACA) of the lung, similar drivers with squamous cell carcinoma (SCC) are sparse. We compared signaling pathways and potential therapeutic targets in lung SCC and ACA tumors using reverse phase proteomic arrays (RPPA) from two independent cohorts of resected early stage NSCLC patients: a testing set using an MDACC cohort (N=140) and a validation set using the Cancer Genome Atlas (TCGA) cohorts. We identified multiple potentially targetable proteins upregulated in SCC, including NRF2, Keap1, PARP, TrkB, and Chk2. Of these potential targets, we found that TrkB also had significant increases in gene expression in SCC as compared to adenocarcinoma. Thus, we next validated the upregulation of TrkB both in vitro and in vivo and found that it was constitutively expressed at high levels in a subset of SCC cell lines. Furthermore, we found that TrkB inhibition suppressed tumor growth, invasiveness and sensitized SCC cells to tyrosine kinase EGFR inhibition in a cell-specific manner.
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Affiliation(s)
- Daniel Richard Gomez
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lauren Averett Byers
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas Anderson Cancer Center, Houston, TX, USA
| | - Monique Nilsson
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas Anderson Cancer Center, Houston, TX, USA
| | - Lixia Diao
- Department of Bioinformatics and Computational Biology, Division of Quantitative Sciences, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, Division of Quantitative Sciences, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lerong Li
- Department of Bioinformatics and Computational Biology, Division of Quantitative Sciences, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Pan Tong
- Department of Bioinformatics and Computational Biology, Division of Quantitative Sciences, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mia Hofstad
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas Anderson Cancer Center, Houston, TX, USA
| | - Babita Saigal
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas Anderson Cancer Center, Houston, TX, USA
| | - Ignacio Wistuba
- Department of Translational Molecular Pathology, Division of Pathology and Laboratory Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Neda Kalhor
- Department of Pathology Administration, Division of Pathology and Laboratory Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Stephen Swisher
- Department of Thoracic and Cardiovascular Surgery, Division of Surgery, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Youhong Fan
- Department of Pathology Administration, Division of Pathology and Laboratory Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Waun Ki Hong
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas Anderson Cancer Center, Houston, TX, USA
| | - Milind Suraokar
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas Anderson Cancer Center, Houston, TX, USA
| | - Carmen Behrens
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas Anderson Cancer Center, Houston, TX, USA
| | - Cesar Moran
- Department of Pathology Administration, Division of Pathology and Laboratory Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - John Victor Heymach
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas Anderson Cancer Center, Houston, TX, USA
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73
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Allison Stewart C, Tong P, Cardnell RJ, Sen T, Li L, Gay CM, Masrorpour F, Fan Y, Bara RO, Feng Y, Ru Y, Fujimoto J, Kundu ST, Post LE, Yu K, Shen Y, Glisson BS, Wistuba I, Heymach JV, Gibbons DL, Wang J, Byers LA. Dynamic variations in epithelial-to-mesenchymal transition (EMT), ATM, and SLFN11 govern response to PARP inhibitors and cisplatin in small cell lung cancer. Oncotarget 2018; 8:28575-28587. [PMID: 28212573 PMCID: PMC5438673 DOI: 10.18632/oncotarget.15338] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 01/19/2017] [Indexed: 12/16/2022] Open
Abstract
Small cell lung cancer (SCLC) is one of the most aggressive forms of cancer, with a 5-year survival <7%. A major barrier to progress is the absence of predictive biomarkers for chemotherapy and novel targeted agents such as PARP inhibitors. Using a high-throughput, integrated proteomic, transcriptomic, and genomic analysis of SCLC patient-derived xenografts (PDXs) and profiled cell lines, we identified biomarkers of drug sensitivity and determined their prevalence in patient tumors. In contrast to breast and ovarian cancer, PARP inhibitor response was not associated with mutations in homologous recombination (HR) genes (e.g., BRCA1/2) or HRD scores. Instead, we found several proteomic markers that predicted PDX response, including high levels of SLFN11 and E-cadherin and low ATM. SLFN11 and E-cadherin were also significantly associated with in vitro sensitivity to cisplatin and topoisomerase1/2 inhibitors (all commonly used in SCLC). Treatment with cisplatin or PARP inhibitors downregulated SLFN11 and E-cadherin, possibly explaining the rapid development of therapeutic resistance in SCLC. Supporting their functional role, silencing SLFN11 reduced in vitro sensitivity and drug-induced DNA damage; whereas ATM knockdown or pharmacologic inhibition enhanced sensitivity. Notably, SCLC with mesenchymal phenotypes (i.e., loss of E-cadherin and high epithelial-to-mesenchymal transition (EMT) signature scores) displayed striking alterations in expression of miR200 family and key SCLC genes (e.g., NEUROD1, ASCL1, ALDH1A1, MYCL1). Thus, SLFN11, EMT, and ATM mediate therapeutic response in SCLC and warrant further clinical investigation as predictive biomarkers.
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Affiliation(s)
- C Allison Stewart
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Pan Tong
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Robert J Cardnell
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Triparna Sen
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Lerong Li
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Carl M Gay
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Fatemah Masrorpour
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - You Fan
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Rasha O Bara
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ying Feng
- BioMarin Pharmaceutical, San Rafael, CA 94901, USA
| | - Yuanbin Ru
- BioMarin Pharmaceutical, San Rafael, CA 94901, USA
| | - Junya Fujimoto
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Samrat T Kundu
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | | | - Karen Yu
- BioMarin Pharmaceutical, San Rafael, CA 94901, USA
| | - Yuqiao Shen
- BioMarin Pharmaceutical, San Rafael, CA 94901, USA
| | - Bonnie S Glisson
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ignacio Wistuba
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - John V Heymach
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Don L Gibbons
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Lauren Averett Byers
- Department of Thoracic Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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74
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Murai J, Feng Y, Yu GK, Ru Y, Tang SW, Shen Y, Pommier Y. Resistance to PARP inhibitors by SLFN11 inactivation can be overcome by ATR inhibition. Oncotarget 2018; 7:76534-76550. [PMID: 27708213 PMCID: PMC5340226 DOI: 10.18632/oncotarget.12266] [Citation(s) in RCA: 211] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 08/26/2016] [Indexed: 12/20/2022] Open
Abstract
Poly(ADP-ribose) polymerase inhibitors (PARPIs) kill cancer cells by trapping PARP1 and PARP2. Talazoparib, the most potent PARPI inhibitor (PARPI), exhibits remarkable selectivity among the NCI-60 cancer cell lines beyond BRCA inactivation. Our genomic analyses reveal high correlation between response to talazoparib and Schlafen 11 (SLFN11) expression. Causality was established in four isogenic SLFN11-positive and -negative cell lines and extended to olaparib. Response to the talazoparib-temozolomide combination was also driven by SLFN11 and validated in 36 small cell lung cancer cell lines, and in xenograft models. Resistance in SLFN11-deficient cells was caused neither by impaired drug penetration nor by activation of homologous recombination. Rather, SLFN11 induced irreversible and lethal replication inhibition, which was independent of ATR-mediated S-phase checkpoint. The resistance to PARPIs by SLFN11 inactivation was overcome by ATR inhibition, mechanistically because SLFN11-deficient cells solely rely on ATR activation for their survival under PARPI treatment. Our study reveals that SLFN11 inactivation, which is common (~45%) in cancer cells, is a novel and dominant resistance determinant to PARPIs.
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Affiliation(s)
- Junko Murai
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ying Feng
- BioMarin Pharmaceutical Inc., Novato, CA, USA
| | | | - Yuanbin Ru
- BioMarin Pharmaceutical Inc., Novato, CA, USA
| | - Sai-Wen Tang
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.,Current affiliation: Division of Blood and Marrow Transplantation, Department of Medicine, Stranford University School of Medicine, Stanford, CA, USA
| | - Yuqiao Shen
- BioMarin Pharmaceutical Inc., Novato, CA, USA
| | - Yves Pommier
- Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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75
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Qiu H, Li J, Clark LH, Jackson AL, Zhang L, Guo H, Kilgore JE, Gehrig PA, Zhou C, Bae-Jump VL. JQ1 suppresses tumor growth via PTEN/PI3K/AKT pathway in endometrial cancer. Oncotarget 2018; 7:66809-66821. [PMID: 27572308 PMCID: PMC5341839 DOI: 10.18632/oncotarget.11631] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 08/10/2016] [Indexed: 01/16/2023] Open
Abstract
Overexpression of c-Myc is associated with worse outcomes in endometrial cancer, indicating that c-Myc may be a promising target for endometrial cancer therapy. A novel small molecule, JQ1, has been shown to block BRD4 resulting in inhibition of c-Myc expression and tumor growth. Thus, we investigated whether JQ1 can inhibit endometrial cancer growth in cell culture and xenograft models. In PTEN-positive endometrial cancer cells, JQ1 significantly suppressed cell proliferation via induction of G1 phase arrest and apoptosis in a dose-dependent manner, accompanied by a sharp decline in cyclin D1 and CDK4 protein expression. However, PTEN-negative endometrial cancer cells exhibited intrinsic resistance to JQ1, despite significant c-Myc inhibition. Moreover, we found that PTEN and its downstream PI3K/AKT signaling targets were modulated by JQ1, as evidenced by microarray analysis. Silencing of PTEN in PTEN-positive endometrial cancer cells resulted in resistance to JQ1, while upregulation of PTEN in PTEN-negative endometrial cancer cells increased sensitivity to JQ1. In xenografts models of PTEN-positive and PTEN-knock-in endometrial cancer, JQ1 significantly upregulated the expression of PTEN, blocked the PI3K/AKT signaling pathway and suppressed tumor growth. These effects were attenuated in PTEN-negative and PTEN-knockdown xenograft models. Thus, JQ1 resistance appears to be highly associated with the status of PTEN expression in endometrial cancer. Our findings suggest that targeting BRD4 using JQ1 might serve as a novel therapeutic strategy in PTEN-positive endometrial cancers.
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Affiliation(s)
- Haifeng Qiu
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jing Li
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Leslie H Clark
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Amanda L Jackson
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Lu Zhang
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Department of Gynecologic Oncology, Shandong Cancer Hospital and Institute, Jinan, China
| | - Hui Guo
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Department of Gynecologic Oncology, Shandong Cancer Hospital and Institute, Jinan, China
| | - Joshua E Kilgore
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Paola A Gehrig
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Chunxiao Zhou
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Lineberger Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Victoria L Bae-Jump
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Lineberger Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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76
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Sen T, Gay CM, Byers LA. Targeting DNA damage repair in small cell lung cancer and the biomarker landscape. Transl Lung Cancer Res 2018. [PMID: 29535912 DOI: 10.21037/tlcr.2018.02.03] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Small cell lung cancer (SCLC) is an aggressive malignancy that accounts for 14% of all lung cancer diagnoses. Despite decades of active research, treatment options for SCLC are limited and resistance to the few Food and Drug Administration (FDA) approved therapies develops rapidly. With no approved targeted agents to date, new therapeutic strategies are desperately needed. SCLC is characterized by high mutation burden, ubiquitous loss of TP53 and RB1, mutually exclusive amplification of MYC family members, thereby, high genomic instability. Studies in the past few years have demonstrated the potential of targeting the DNA damage response (DDR) pathway as a promising therapeutic strategy for SCLC. Inhibitors targeting DDR proteins have shown promise in preclinical models, and are under clinical investigation as single agents and in combination with cytotoxic therapies. Recent efforts to expand the therapeutic arsenal toward SCLC have focused in part on immune checkpoint inhibitors, such as agents targeting the receptor-ligand pair programmed cell death protein 1 (PD-1) and programmed death-ligand 1 (PD-L1). Clinical trials have confirmed activity of these agents in extensive stage (ES)-SCLC. However, while several patients had dramatic responses, overall response rates to immune checkpoint blockade (ICB) remain poor. As a result, there is an urgent need to develop rational combination therapies to enhance response rates to immunotherapy in SCLC. Identification of predictive biomarkers for patient stratification, identifying effective combinations to overcome adaptive resistance to DDR-targeted therapies and identifying strategies to enhance response to immunotherapy are areas of active investigation in SCLC.
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Affiliation(s)
- Triparna Sen
- Department of Thoracic and Head & Neck Medical Oncology, University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Carl M Gay
- Department of Thoracic and Head & Neck Medical Oncology, University of Texas, MD Anderson Cancer Center, Houston, TX, USA
| | - Lauren Averett Byers
- Department of Thoracic and Head & Neck Medical Oncology, University of Texas, MD Anderson Cancer Center, Houston, TX, USA
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77
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Abou-Antoun TJ, Nazarian J, Ghanem A, Vukmanovic S, Sandler AD. Molecular and functional analysis of anchorage independent, treatment-evasive neuroblastoma tumorspheres with enhanced malignant properties: A possible explanation for radio-therapy resistance. PLoS One 2018; 13:e0189711. [PMID: 29298329 PMCID: PMC5751995 DOI: 10.1371/journal.pone.0189711] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 11/30/2017] [Indexed: 12/19/2022] Open
Abstract
Despite significant advances in cancer treatment and management, more than 60% of patients with neuroblastoma present with very poor prognosis in the form of metastatic and aggressive disease. Solid tumors including neuroblastoma are thought to be heterogeneous with a sub-population of stem-like cells that are treatment-evasive with highly malignant characteristics. We previously identified a phenomenon of reversible adaptive plasticity (RAP) between anchorage dependent (AD) cells and anchorage independent (AI) tumorspheres in neuroblastoma cell cultures. To expand our molecular characterization of the AI tumorspheres, we sought to define the comprehensive proteomic profile of murine AD and AI neuroblastoma cells. The proteomic profiles of the two phenotypic cell populations were compared to each other to determine the differential protein expression and molecular pathways of interest. We report exclusive or significant up-regulation of tumorigenic pathways expressed by the AI tumorspheres compared to the AD cancer cells. These pathways govern metastatic potential, enhanced malignancy and epithelial to mesenchymal transition. Furthermore, radio-therapy induced significant up-regulation of specific tumorigenic and proliferative proteins, namely survivin, CDC2 and the enzyme Poly [ADP-ribose] polymerase 1. Bio-functional characteristics of the AI tumorspheres were resistant to sutent inhibition of receptor tyrosine kinases (RTKs) as well as to 2.5 Gy radio-therapy as assessed by cell survival, proliferation, apoptosis and migration. Interestingly, PDGF-BB stimulation of the PDGFRβ led to transactivation of EGFR and VEGFR in AI tumorspheres more potently than in AD cells. Sutent inhibition of PDGFRβ abrogated this transactivation in both cell types. In addition, 48 h sutent treatment significantly down-regulated the protein expression of PDGFRβ, MYCN, SOX2 and Survivin in the AI tumorspheres and inhibited tumorsphere self-renewal. Radio-sensitivity in AI tumorspheres was enhanced when sutent treatment was combined with survivin knock-down. We conclude that AI tumorspheres have a differential protein expression compared to AD cancer cells that contribute to their malignant phenotype and radio-resistance. Specific targeting of both cellular phenotypes is needed to improve outcomes in neuroblastoma patients.
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Affiliation(s)
- Tamara J. Abou-Antoun
- Department of Pharmaceutical Sciences, the School of Pharmacy, Lebanese American University, Byblos, Lebanon
- The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Health System, Washington, D.C., United States of America
- * E-mail:
| | - Javad Nazarian
- Department of Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, D.C., United States of America
- Center for Genetic Medicine Research, Children’s National Medical Center, Washington, D.C., United States of America
| | - Anthony Ghanem
- The School of Medicine, Lebanese American University, Byblos, Lebanon
| | - Stanislav Vukmanovic
- The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Health System, Washington, D.C., United States of America
| | - Anthony D. Sandler
- The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children's National Health System, Washington, D.C., United States of America
- The Joseph E. Robert Center for Surgical Care, Children's National Health System, Washington, D.C., United States of America
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Foy V, Schenk MW, Baker K, Gomes F, Lallo A, Frese KK, Forster M, Dive C, Blackhall F. Targeting DNA damage in SCLC. Lung Cancer 2017; 114:12-22. [PMID: 29173760 DOI: 10.1016/j.lungcan.2017.10.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 10/12/2017] [Accepted: 10/14/2017] [Indexed: 02/07/2023]
Abstract
SCLC accounts for 15% of lung cancer worldwide. Characterised by early dissemination and rapid development of chemo-resistant disease, less than 5% of patients survive 5 years. Despite 3 decades of clinical trials there has been no change to the standard platinum and etoposide regimen for first line treatment developed in the 1970's. The exceptionally high number of genomic aberrations observed in SCLC combined with the characteristic rapid cellular proliferation results in accumulation of DNA damage and genomic instability. To flourish in this precarious genomic context, SCLC cells are reliant on functional DNA damage repair pathways and cell cycle checkpoints. Current cytotoxic drugs and radiotherapy treatments for SCLC have long been known to act by induction of DNA damage and the response of cancer cells to such damage determines treatment efficacy. Recent years have witnessed improved understanding of strategies to exploit DNA damage and repair mechanisms in order to increase treatment efficacy. This review will summarise the rationale to target DNA damage response in SCLC, the progress made in evaluating novel DDR inhibitors and highlight various ongoing challenges for their clinical development in this disease.
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Affiliation(s)
- Victoria Foy
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, UK
| | - Maximilian W Schenk
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, UK
| | - Katie Baker
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, UK; Cancer Research UK Lung Cancer Centre of Excellence, UK
| | - Fabio Gomes
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, UK; Oncologia Medica, Centro Hospitalar Lisboa Central, Lisboa, Portugal
| | - Alice Lallo
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, UK
| | - Kristopher K Frese
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, UK
| | - Martin Forster
- Department of Oncology, UCL Cancer Institute, University College London, London, UK
| | - Caroline Dive
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, UK; Cancer Research UK Lung Cancer Centre of Excellence, UK
| | - Fiona Blackhall
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, UK; Institute of Cancer Sciences, University of Manchester, Manchester, UK.
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"Back to a false normality": new intriguing mechanisms of resistance to PARP inhibitors. Oncotarget 2017; 8:23891-23904. [PMID: 28055979 PMCID: PMC5410353 DOI: 10.18632/oncotarget.14409] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 12/23/2016] [Indexed: 01/07/2023] Open
Abstract
Several evidences have shown that BRCA mutations increased tumor-cells sensitivity to PARP inhibitors by synthetic lethality leading to an accelerated development of several compounds targeting the PARP enzymes system as anticancer agents for clinical setting. Most of such compounds have been investigated in ovarian and breast cancer, showing promising efficacy in BRCA-mutated patients. Recently clinical studies of PARP-inhibitors have been extended across different tumor types harboring BRCA-mutations, including also “BRCA-like” sporadic tumors with homologous recombination deficiency (HRD). This review summarizes the biological background underlying PARP-inhibition, reporting the results of the most relevant clinical trials carried out in patients treated with PARP inhibitors alone or in combination with chemotherapy. Molecular mechanisms responsible for the occurrence of both primary and acquired resistance have been elucidated, in order to support the development of new treatment strategies.
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80
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Warchal SJ, Dawson JC, Carragher NO. Development of the Theta Comparative Cell Scoring Method to Quantify Diverse Phenotypic Responses Between Distinct Cell Types. Assay Drug Dev Technol 2017; 14:395-406. [PMID: 27552144 PMCID: PMC5015429 DOI: 10.1089/adt.2016.730] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
In this article, we have developed novel data visualization tools and a Theta comparative cell scoring (TCCS) method, which supports high-throughput in vitro pharmacogenomic studies across diverse cellular phenotypes measured by multiparametric high-content analysis. The TCCS method provides a univariate descriptor of divergent compound-induced phenotypic responses between distinct cell types, which can be used for correlation with genetic, epigenetic, and proteomic datasets to support the identification of biomarkers and further elucidate drug mechanism-of-action. Application of these methods to compound profiling across high-content assays incorporating well-characterized cells representing known molecular subtypes of disease supports the development of personalized healthcare strategies without prior knowledge of a drug target. We present proof-of-principle data quantifying distinct phenotypic response between eight breast cancer cells representing four disease subclasses. Application of the TCCS method together with new advances in next-generation sequencing, induced pluripotent stem cell technology, gene editing, and high-content phenotypic screening are well placed to advance the identification of predictive biomarkers and personalized medicine approaches across a broader range of disease types and therapeutic classes.
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Affiliation(s)
- Scott J Warchal
- Institute of Genetics and Molecular Medicine, Cancer Research UK Edinburgh Centre, University of Edinburgh , Edinburgh, United Kingdom
| | - John C Dawson
- Institute of Genetics and Molecular Medicine, Cancer Research UK Edinburgh Centre, University of Edinburgh , Edinburgh, United Kingdom
| | - Neil O Carragher
- Institute of Genetics and Molecular Medicine, Cancer Research UK Edinburgh Centre, University of Edinburgh , Edinburgh, United Kingdom
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81
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Philip CA, Laskov I, Beauchamp MC, Marques M, Amin O, Bitharas J, Kessous R, Kogan L, Baloch T, Gotlieb WH, Yasmeen A. Inhibition of PI3K-AKT-mTOR pathway sensitizes endometrial cancer cell lines to PARP inhibitors. BMC Cancer 2017; 17:638. [PMID: 28886696 PMCID: PMC5591502 DOI: 10.1186/s12885-017-3639-0] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 09/01/2017] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Phosphatase and Tensin homolog (PTEN) is a tumor suppressor gene. Loss of its function is the most frequent genetic alteration in endometrioid endometrial cancers (70-80%) and high grade tumors (90%). We assessed the sensitivity of endometrial cancer cell lines to PARP inhibitors (olaparib and BMN-673) and a PI3K inhibitor (BKM-120), alone or in combination, in the context of their PTEN mutation status. We also highlighted a direct pathway linking PTEN to DNA repair. METHODS Using endometrial cancer cellular models with known PTEN status, we evaluated their homologous recombination (HR) functionality by RAD51 foci formation assay. The 50% Inhibitory concentration (IC50) of PI3K and PARP inhibitors in these cells was assessed, and western blotting was performed to determine the expression of proteins involved in the PI3K/mTOR pathway. Moreover, we explored the interaction between RAD51 and PI3K/mTOR by immunofluorescence. Next, the combination effect of PI3K and PARP inhibitors on cell proliferation was evaluated by a clonogenic assay. RESULTS Cells with mutated PTEN showed over-activation of the PI3K/mTOR pathway. These cells were more sensitive to PARP inhibition compared to PTEN wild-type cells. In addition, PI3K inhibitor treatment reduced RAD51 foci formation in PTEN mutated cells, and sensitized these cells to PARP inhibitor. CONCLUSION Targeting both PARP and PI3K might lead to improved personalized therapeutic approaches in endometrial cancer patients with PTEN mutations. Understanding the complex interaction of PTEN mutations with DNA repair in endometrial cancer will help to better select patients that are likely to respond to some of the new and costly targeted therapies.
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Affiliation(s)
- Charles-André Philip
- Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, 3755 Cote Ste. Catherine Road, Montreal, QC, H3T 1E2, Canada
| | - Ido Laskov
- Division of Gynecologic Oncology, Jewish General Hospital, McGill University, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, 3755 Cote Ste. Catherine Road, Montreal, QC, H3T 1E2, Canada.,Department of Obstetrics and Gynecology, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Marie-Claude Beauchamp
- Division of Gynecologic Oncology, Jewish General Hospital, McGill University, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, 3755 Cote Ste. Catherine Road, Montreal, QC, H3T 1E2, Canada
| | - Maud Marques
- Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, 3755 Cote Ste. Catherine Road, Montreal, QC, H3T 1E2, Canada
| | - Oreekha Amin
- Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, 3755 Cote Ste. Catherine Road, Montreal, QC, H3T 1E2, Canada
| | - Joanna Bitharas
- Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, 3755 Cote Ste. Catherine Road, Montreal, QC, H3T 1E2, Canada
| | - Roy Kessous
- Division of Gynecologic Oncology, Jewish General Hospital, McGill University, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, 3755 Cote Ste. Catherine Road, Montreal, QC, H3T 1E2, Canada
| | - Liron Kogan
- Division of Gynecologic Oncology, Jewish General Hospital, McGill University, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, 3755 Cote Ste. Catherine Road, Montreal, QC, H3T 1E2, Canada
| | - Tahira Baloch
- Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, 3755 Cote Ste. Catherine Road, Montreal, QC, H3T 1E2, Canada
| | - Walter H Gotlieb
- Division of Gynecologic Oncology, Jewish General Hospital, McGill University, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, 3755 Cote Ste. Catherine Road, Montreal, QC, H3T 1E2, Canada.,Department of Oncology, McGill University, Montreal, QC, Canada
| | - Amber Yasmeen
- Division of Gynecologic Oncology, Jewish General Hospital, McGill University, Montreal, QC, Canada. .,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, 3755 Cote Ste. Catherine Road, Montreal, QC, H3T 1E2, Canada.
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82
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Baize N, Monnet I, Greillier L, Quere G, Kerjouan M, Janicot H, Vergnenegre A, Auliac JB, Chouaid C. Second-line treatments of small-cell lung cancers. Expert Rev Anticancer Ther 2017; 17:1033-1043. [DOI: 10.1080/14737140.2017.1372198] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Nathalie Baize
- UTTIOM (Unité Transversale de Thérapeutiques Innovantes en Oncologie Médicale), CHU Angers, France
| | - Isabelle Monnet
- Department of Pulmonology, Centre Hospitalier Intercommunal de Créteil, Créteil, France
| | - Laurent Greillier
- Service d’Oncologie Multidisciplinaire et Innovations Thérapeutiques, AP-HM, Aix-Marseille Université, Marseille, France
| | - Gilles Quere
- Respiratory Disease Department, Brest University Brest, Brest, France
| | - Mallorie Kerjouan
- Respiratory Disease Department, Pontchaillou University Hospital, Rennes, France
| | - Henri Janicot
- Service de pneumologie, CHU Clermont-Ferrand, Clermont Ferrand, France
| | - Alain Vergnenegre
- UOTC (Unité d’Oncologie Thoracique et Cutanée), CHU Limoges, Limoges, France
| | | | - Christos Chouaid
- Department of Pulmonology, Centre Hospitalier Intercommunal de Créteil, Créteil, France
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83
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Cardnell RJ, Li L, Sen T, Bara R, Tong P, Fujimoto J, Ireland AS, Guthrie MR, Bheddah S, Banerjee U, Kalu NN, Fan YH, Dylla SJ, Johnson FM, Wistuba II, Oliver TG, Heymach JV, Glisson BS, Wang J, Byers LA. Protein expression of TTF1 and cMYC define distinct molecular subgroups of small cell lung cancer with unique vulnerabilities to aurora kinase inhibition, DLL3 targeting, and other targeted therapies. Oncotarget 2017; 8:73419-73432. [PMID: 29088717 PMCID: PMC5650272 DOI: 10.18632/oncotarget.20621] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 08/14/2017] [Indexed: 01/09/2023] Open
Abstract
Small cell lung cancer (SCLC) is a recalcitrant cancer for which no new treatments have been approved in over 30 years. While molecular subtyping now guides treatment selection for patients with non-small cell lung cancer and other cancers, SCLC is still treated as a single disease entity. Using model-based clustering, we found two major proteomic subtypes of SCLC characterized by either high thyroid transcription factor-1 (TTF1)/low cMYC protein expression or high cMYC/low TTF1. Applying "drug target constellation" (DTECT) mapping, we further show that protein levels of TTF1 and cMYC predict response to targeted therapies including aurora kinase, Bcl2, and HSP90 inhibitors. Levels of TTF1 and DLL3 were also highly correlated in preclinical models and patient tumors. TTF1 (used in the diagnosis lung cancer) could therefore be used as a surrogate of DLL3 expression to identify patients who may respond to the DLL3 antibody-drug conjugate rovalpituzumab tesirine. These findings suggest that TTF1, cMYC or other protein markers identified here could be used to identify subgroups of SCLC patients who may respond preferentially to several emerging targeted therapies.
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Affiliation(s)
- Robert J Cardnell
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lerong Li
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Triparna Sen
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Rasha Bara
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Pan Tong
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Junya Fujimoto
- Department of Molecular Translational Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Abbie S Ireland
- Department of Oncological Sciences, University of Utah, Huntsman Cancer Institute, Salt Lake City, UT, USA
| | - Matthew R Guthrie
- Department of Oncological Sciences, University of Utah, Huntsman Cancer Institute, Salt Lake City, UT, USA
| | | | - Upasana Banerjee
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Nene N Kalu
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - You-Hong Fan
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Faye M Johnson
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,The University of Texas Graduate School of Biomedical Sciences, Houston, TX, USA
| | - Ignacio I Wistuba
- Department of Molecular Translational Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Trudy G Oliver
- Department of Oncological Sciences, University of Utah, Huntsman Cancer Institute, Salt Lake City, UT, USA
| | - John V Heymach
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Bonnie S Glisson
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Oncological Sciences, University of Utah, Huntsman Cancer Institute, Salt Lake City, UT, USA
| | - Lauren A Byers
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,The University of Texas Graduate School of Biomedical Sciences, Houston, TX, USA
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84
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Fruman DA, Chiu H, Hopkins BD, Bagrodia S, Cantley LC, Abraham RT. The PI3K Pathway in Human Disease. Cell 2017; 170:605-635. [PMID: 28802037 PMCID: PMC5726441 DOI: 10.1016/j.cell.2017.07.029] [Citation(s) in RCA: 1625] [Impact Index Per Article: 232.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 07/17/2017] [Accepted: 07/20/2017] [Indexed: 02/08/2023]
Abstract
Phosphoinositide 3-kinase (PI3K) activity is stimulated by diverse oncogenes and growth factor receptors, and elevated PI3K signaling is considered a hallmark of cancer. Many PI3K pathway-targeted therapies have been tested in oncology trials, resulting in regulatory approval of one isoform-selective inhibitor (idelalisib) for treatment of certain blood cancers and a variety of other agents at different stages of development. In parallel to PI3K research by cancer biologists, investigations in other fields have uncovered exciting and often unpredicted roles for PI3K catalytic and regulatory subunits in normal cell function and in disease. Many of these functions impinge upon oncology by influencing the efficacy and toxicity of PI3K-targeted therapies. Here we provide a perspective on the roles of class I PI3Ks in the regulation of cellular metabolism and in immune system functions, two topics closely intertwined with cancer biology. We also discuss recent progress developing PI3K-targeted therapies for treatment of cancer and other diseases.
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Affiliation(s)
- David A Fruman
- Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92697-3900, USA.
| | - Honyin Chiu
- Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92697-3900, USA
| | - Benjamin D Hopkins
- Meyer Cancer Center, Weill Cornell Medical College, 413 E. 69(th) Street, New York, NY 10021, USA
| | - Shubha Bagrodia
- Oncology R&D Group, Pfizer Worldwide Research and Development, 10646/CB4 Science Center Drive, San Diego, CA 92121, USA
| | - Lewis C Cantley
- Meyer Cancer Center, Weill Cornell Medical College, 413 E. 69(th) Street, New York, NY 10021, USA
| | - Robert T Abraham
- Oncology R&D Group, Pfizer Worldwide Research and Development, 10646/CB4 Science Center Drive, San Diego, CA 92121, USA
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85
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Byers LA, Horn L, Ghandi J, Kloecker G, Owonikoko T, Waqar SN, Krzakowski M, Cardnell RJ, Fujimoto J, Taverna P, Azab M, Camidge DR. A phase 2, open-label, multi-center study of amuvatinib in combination with platinum etoposide chemotherapy in platinum-refractory small cell lung cancer patients. Oncotarget 2017; 8:81441-81454. [PMID: 29113403 PMCID: PMC5655298 DOI: 10.18632/oncotarget.19888] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 07/09/2017] [Indexed: 11/25/2022] Open
Abstract
Background Amuvatinib (MP-470) is a multi-targeted kinase inhibitor with potent activity against c-Kit, synergistic with DNA-damaging agents. We evaluated amuvatinib in combination with platinum-etoposide (EP) chemotherapy by objective response rate, survival, and tolerability in platinum-refractory small cell lung cancer (SCLC) patients. Methods This study used a Simon 2-stage design requiring ≥3 centrally confirmed responses in the first 21 subjects. Subjects received EP with 300 mg amuvatinib orally three times daily in cycles of 21 days. A three-day amuvatinib run-in period before EP occurred in Cycle 1. Subjects received the same EP chemotherapy regimen given prior to progression/relapse. Results Among 23 subjects treated, we observed four PRs (17.4%) per RECIST 1.1, only two of which were centrally confirmed (8.7%, response duration 119, 151 days). Three subjects (13%) had confirmed stable disease. c-Kit H-score was ≥100 in two subjects whose respective durations of disease control were 151 and 256 days. Conclusions The addition of amuvatinib to EP chemotherapy in unselected, platinum-refractory SCLC did not meet the primary endpoint of ≥3 confirmed responses in stage 1. However, high c-Kit expression in two subjects with durable disease control suggests the potential for further study of amuvatinib in SCLC patients with high c-Kit expression.
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Affiliation(s)
| | - Leora Horn
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | | | - Goetz Kloecker
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | | | - Saiama Naheed Waqar
- Siteman Cancer Center, Washington University School of Medicine, St Louis, MO, USA
| | - Maciej Krzakowski
- Centrum Onkologii-Instytut Im. M. Skłodowskiej-Curie w Warszawie, Warszawa, Poland
| | | | - Junya Fujimoto
- University of Texas, M.D. Anderson Cancer Center, Houston, TX, USA
| | | | | | - David Ross Camidge
- Anschutz Cancer Pavilion, University of Colorado Cancer Center, Aurora, CO, USA
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86
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Sen T, Tong P, Diao L, Li L, Fan Y, Hoff J, Heymach JV, Wang J, Byers LA. Targeting AXL and mTOR Pathway Overcomes Primary and Acquired Resistance to WEE1 Inhibition in Small-Cell Lung Cancer. Clin Cancer Res 2017; 23:6239-6253. [PMID: 28698200 DOI: 10.1158/1078-0432.ccr-17-1284] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/03/2017] [Accepted: 07/03/2017] [Indexed: 01/29/2023]
Abstract
Purpose: Drugs targeting DNA repair and cell-cycle checkpoints have emerged as promising therapies for small-cell lung cancer (SCLC). Among these, the WEE1 inhibitor AZD1775 has shown clinical activity in a subset of SCLC patients, but resistance is common. Understanding primary and acquired resistance mechanisms will be critical for developing effective WEE1 inhibitor combinations.Experimental Design: AZD1775 sensitivity in SCLC cell lines was correlated with baseline expression level of 200 total or phosphorylated proteins measured by reverse-phase protein array (RPPA) to identify predictive markers of primary resistance. We further established AZD1775 acquired resistance models to identify mechanism of acquired resistance. Combination regimens were tested to overcome primary and acquired resistance to AZD1775 in in vitro and in vivo SCLC models.Results: High-throughput proteomic profiling demonstrate that SCLC models with primary resistance to AZD1775 express high levels of AXL and phosphorylated S6 and that WEE1/AXL or WEE1/mTOR inhibitor combinations overcome resistance in vitro and in vivo Furthermore, AXL, independently and via mTOR, activates the ERK pathway, leading to recruitment and activation of another G2-checkpoint protein, CHK1. AZD1775 acquired resistance models demonstrated upregulation of AXL, pS6, and MET, and resistance was overcome with the addition of AXL (TP0903), dual-AXL/MET (cabozantinib), or mTOR (RAD001) inhibitors.Conclusions: AXL promotes resistance to WEE1 inhibition via downstream mTOR signaling and resulting activation of a parallel DNA damage repair pathway, CHK1. These findings suggest rational combinations to enhance the clinical efficacy of AZD1775, which is currently in clinical trials for SCLC and other malignancies. Clin Cancer Res; 23(20); 6239-53. ©2017 AACR.
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Affiliation(s)
- Triparna Sen
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Pan Tong
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lixia Diao
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lerong Li
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Youhong Fan
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jennifer Hoff
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - John V Heymach
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lauren Averett Byers
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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Lesueur P, Chevalier F, Austry JB, Waissi W, Burckel H, Noël G, Habrand JL, Saintigny Y, Joly F. Poly-(ADP-ribose)-polymerase inhibitors as radiosensitizers: a systematic review of pre-clinical and clinical human studies. Oncotarget 2017; 8:69105-69124. [PMID: 28978184 PMCID: PMC5620324 DOI: 10.18632/oncotarget.19079] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 06/19/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Poly-(ADP-Ribose)-Polymerase (PARP) inhibitors are becoming important actors of anti-neoplasic agents landscape, with recent but narrow FDA's approvals for ovarian BRCA mutated cancers and prostatic cancer. Nevertheless, PARP inhibitors are also promising drugs for combined treatments particularly with radiotherapy. More than seven PARP inhibitors have been currently developed. Central Role of PARP in DNA repair, makes consider PARP inhibitor as potential radiosensitizers, especially for tumors with DNA repair defects, such as BRCA mutation, because of synthetic lethality. Furthermore the replication-dependent activity of PARP inhibitor helps to maintain the differential effect between tumoral and healthy tissues. Inhibition of chromatin remodeling, G2/M arrest, vasodilatory effect induced by PARP inhibitor, also participate to their radio-sensitization effect. MATERIALS AND METHODS Here, after highlighting mechanisms of PARP inhibitors radiosensitization we methodically searched PubMed, Google Scholar, Cochrane Databases and meeting proceedings for human pre-clinical and clinical studies that evaluated PARP inhibitor radiosensitizing effect. Enhancement ratio, when available, was systematically reported. RESULTS Sixty four studies finally met our selection criteria and were included in the analysis. Only three pre-clinical studies didn't find any radiosensitizing effect. Median enhancement ratio vary from 1,3 for prostate tumors to 1,5 for lung cancers. Nine phase I or II trials assessed safety data. CONCLUSION PARP inhibitors are promising radiosensitizers, but need more clinical investigation. The next ten years will be determining for judging their real potential.
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Affiliation(s)
- Paul Lesueur
- Laboratoire d'Accueil et de Recherche avec les Ions Accélérés, CEA, CIMAP-GANIL, 14000 Caen, France.,Centre Francois Baclesse Centre de Lutte Contre le Cancer, Radiotherapy Unit, 14000 Caen, France
| | - François Chevalier
- Laboratoire d'Accueil et de Recherche avec les Ions Accélérés, CEA, CIMAP-GANIL, 14000 Caen, France
| | - Jean-Baptiste Austry
- Laboratoire d'Accueil et de Recherche avec les Ions Accélérés, CEA, CIMAP-GANIL, 14000 Caen, France
| | - Waisse Waissi
- EA 3430, Laboratoire de Radiobiologie, Centre Paul Strauss, 67000 Strasbourg, France
| | - Hélène Burckel
- EA 3430, Laboratoire de Radiobiologie, Centre Paul Strauss, 67000 Strasbourg, France
| | - Georges Noël
- EA 3430, Laboratoire de Radiobiologie, Centre Paul Strauss, 67000 Strasbourg, France
| | - Jean-Louis Habrand
- Centre Francois Baclesse Centre de Lutte Contre le Cancer, Radiotherapy Unit, 14000 Caen, France
| | - Yannick Saintigny
- Laboratoire d'Accueil et de Recherche avec les Ions Accélérés, CEA, CIMAP-GANIL, 14000 Caen, France
| | - Florence Joly
- Centre Francois Baclesse Centre de Lutte Contre le Cancer, Clinical Research Unit, 14000 Caen, France
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88
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Gupte R, Liu Z, Kraus WL. PARPs and ADP-ribosylation: recent advances linking molecular functions to biological outcomes. Genes Dev 2017; 31:101-126. [PMID: 28202539 PMCID: PMC5322727 DOI: 10.1101/gad.291518.116] [Citation(s) in RCA: 484] [Impact Index Per Article: 69.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this review, Gupte et al. discuss new findings on the diverse roles of PARPs in chromatin regulation, transcription, RNA biology, and DNA repair as well as recent advances that link ADP-ribosylation to stress responses, metabolism, viral infections, and cancer. The discovery of poly(ADP-ribose) >50 years ago opened a new field, leading the way for the discovery of the poly(ADP-ribose) polymerase (PARP) family of enzymes and the ADP-ribosylation reactions that they catalyze. Although the field was initially focused primarily on the biochemistry and molecular biology of PARP-1 in DNA damage detection and repair, the mechanistic and functional understanding of the role of PARPs in different biological processes has grown considerably of late. This has been accompanied by a shift of focus from enzymology to a search for substrates as well as the first attempts to determine the functional consequences of site-specific ADP-ribosylation on those substrates. Supporting these advances is a host of methodological approaches from chemical biology, proteomics, genomics, cell biology, and genetics that have propelled new discoveries in the field. New findings on the diverse roles of PARPs in chromatin regulation, transcription, RNA biology, and DNA repair have been complemented by recent advances that link ADP-ribosylation to stress responses, metabolism, viral infections, and cancer. These studies have begun to reveal the promising ways in which PARPs may be targeted therapeutically for the treatment of disease. In this review, we discuss these topics and relate them to the future directions of the field.
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Affiliation(s)
- Rebecca Gupte
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA.,Division of Basic Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
| | - Ziying Liu
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA.,Division of Basic Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
| | - W Lee Kraus
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA.,Division of Basic Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
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89
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Sen T, Tong P, Stewart CA, Cristea S, Valliani A, Shames DS, Redwood AB, Fan YH, Li L, Glisson BS, Minna JD, Sage J, Gibbons DL, Piwnica-Worms H, Heymach JV, Wang J, Byers LA. CHK1 Inhibition in Small-Cell Lung Cancer Produces Single-Agent Activity in Biomarker-Defined Disease Subsets and Combination Activity with Cisplatin or Olaparib. Cancer Res 2017; 77:3870-3884. [PMID: 28490518 DOI: 10.1158/0008-5472.can-16-3409] [Citation(s) in RCA: 138] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/15/2017] [Accepted: 05/03/2017] [Indexed: 12/18/2022]
Abstract
Effective targeted therapies for small-cell lung cancer (SCLC), the most aggressive form of lung cancer, remain urgently needed. Here we report evidence of preclinical efficacy evoked by targeting the overexpressed cell-cycle checkpoint kinase CHK1 in SCLC. Our studies employed RNAi-mediated attenuation or pharmacologic blockade with the novel second-generation CHK1 inhibitor prexasertib (LY2606368), currently in clinical trials. In SCLC models in vitro and in vivo, LY2606368 exhibited strong single-agent efficacy, augmented the effects of cisplatin or the PARP inhibitor olaparib, and improved the response of platinum-resistant models. Proteomic analysis identified CHK1 and MYC as top predictive biomarkers of LY2606368 sensitivity, suggesting that CHK1 inhibition may be especially effective in SCLC with MYC amplification or MYC protein overexpression. Our findings provide a preclinical proof of concept supporting the initiation of a clinical efficacy trial in patients with platinum-sensitive or platinum-resistant relapsed SCLC. Cancer Res; 77(14); 3870-84. ©2017 AACR.
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Affiliation(s)
- Triparna Sen
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Pan Tong
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - C Allison Stewart
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sandra Cristea
- Department of Pediatrics, Stanford University, Stanford, California
- Department of Genetics, Stanford University, Stanford, California
| | - Aly Valliani
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - David S Shames
- Department of Oncology Biomarker Development, Genentech Inc., South San Francisco, California
| | - Abena B Redwood
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - You Hong Fan
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lerong Li
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Bonnie S Glisson
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - John D Minna
- Hamon Center for Therapeutic Oncology Research, The University of Texas Southwestern, Dallas, Texas
| | - Julien Sage
- Department of Pediatrics, Stanford University, Stanford, California
- Department of Genetics, Stanford University, Stanford, California
| | - Don L Gibbons
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Helen Piwnica-Worms
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - John V Heymach
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lauren Averett Byers
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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90
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Pignochino Y, Capozzi F, D'Ambrosio L, Dell'Aglio C, Basiricò M, Canta M, Lorenzato A, Vignolo Lutati F, Aliberti S, Palesandro E, Boccone P, Galizia D, Miano S, Chiabotto G, Napione L, Gammaitoni L, Sangiolo D, Benassi MS, Pasini B, Chiorino G, Aglietta M, Grignani G. PARP1 expression drives the synergistic antitumor activity of trabectedin and PARP1 inhibitors in sarcoma preclinical models. Mol Cancer 2017; 16:86. [PMID: 28454547 PMCID: PMC5410089 DOI: 10.1186/s12943-017-0652-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 04/17/2017] [Indexed: 01/05/2023] Open
Abstract
Background Enhancing the antitumor activity of the DNA-damaging drugs is an attractive strategy to improve current treatment options. Trabectedin is an isoquinoline alkylating agent with a peculiar mechanism of action. It binds to minor groove of DNA inducing single- and double-strand-breaks. These kinds of damage lead to the activation of PARP1, a first-line enzyme in DNA-damage response pathways. We hypothesized that PARP1 targeting could perpetuate trabectedin-induced DNA damage in tumor cells leading finally to cell death. Methods We investigated trabectedin and PARP1 inhibitor synergism in several tumor histotypes both in vitro and in vivo (subcutaneous and orthotopic tumor xenografts in mice). We searched for key determinants of drug synergism by comparative genomic hybridization (aCGH) and gene expression profiling (GEP) and validated their functional role. Results Trabectedin activated PARP1 enzyme and the combination with PARP1 inhibitors potentiated DNA damage, cell cycle arrest at G2/M checkpoint and apoptosis, if compared to single agents. Olaparib was the most active PARP1 inhibitor to combine with trabectedin and we confirmed the antitumor and antimetastatic activity of trabectedin/olaparib combination in mice models. However, we observed different degree of trabectedin/olaparib synergism among different cell lines. Namely, in DMR leiomyosarcoma models the combination was significantly more active than single agents, while in SJSA-1 osteosarcoma models no further advantage was obtained if compared to trabectedin alone. aCGH and GEP revealed that key components of DNA-repair pathways were involved in trabectedin/olaparib synergism. In particular, PARP1 expression dictated the degree of the synergism. Indeed, trabectedin/olaparib synergism was increased after PARP1 overexpression and reduced after PARP1 silencing. Conclusions PARP1 inhibition potentiated trabectedin activity in a PARP1-dependent manner and PARP1 expression in tumor cells might be a useful predictive biomarker that deserves clinical evaluation. Electronic supplementary material The online version of this article (doi:10.1186/s12943-017-0652-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ymera Pignochino
- Sarcoma Unit, Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy. .,Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy.
| | - Federica Capozzi
- Sarcoma Unit, Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy.,Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy
| | - Lorenzo D'Ambrosio
- Sarcoma Unit, Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy.,Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy
| | - Carmine Dell'Aglio
- Pathology Unit, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy
| | - Marco Basiricò
- Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy
| | - Marta Canta
- Sarcoma Unit, Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy.,Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy
| | - Annalisa Lorenzato
- Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy
| | | | - Sandra Aliberti
- Sarcoma Unit, Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy
| | - Erica Palesandro
- Sarcoma Unit, Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy.,Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy
| | - Paola Boccone
- Sarcoma Unit, Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy.,Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy
| | - Danilo Galizia
- Sarcoma Unit, Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy.,Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy
| | - Sara Miano
- Sarcoma Unit, Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy.,Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy
| | - Giulia Chiabotto
- Sarcoma Unit, Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy
| | - Lucia Napione
- Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy.,Laboratory of Vascular Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy.,Current address: Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
| | - Loretta Gammaitoni
- Laboratory of Vascular Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy
| | - Dario Sangiolo
- Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy.,Laboratory of Vascular Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy
| | - Maria Serena Benassi
- Experimental Oncology Laboratory, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Barbara Pasini
- Department of Genetics, Biology and Biochemistry, University of Torino, Torino, Italy
| | | | - Massimo Aglietta
- Department of Oncology, University of Torino Medical School, Candiolo, Torino, Italy.,Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy
| | - Giovanni Grignani
- Sarcoma Unit, Medical Oncology, Candiolo Cancer Institute - FPO, IRCCS, Candiolo, Torino, Italy.
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91
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Du Y, Yamaguchi H, Hsu JL, Hung MC. PARP inhibitors as precision medicine for cancer treatment. Natl Sci Rev 2017. [DOI: 10.1093/nsr/nwx027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
AbstractPersonalized or precision medicine is an emerging treatment approach tailored to individuals or certain groups of patients based on their unique characteristics. These types of therapies guided by biomarkers tend to be more effective than traditional approaches, especially in cancer. The inhibitor against poly (ADP-ribose) polymerase (PARP), olaparib (Lynparza, AstraZeneca), which was approved by the US Food and Drug Administration (FDA) in 2014, demonstrated efficacy specifically for ovarian cancer patients harboring mutations in BRCA genes, which encode proteins in DNA double-strand break repairs. However, the response to PARP inhibitors has been less encouraging in other cancer types that also carry defects in the BRCA genes. Thus, furthering our understanding of the underlying mechanism of PARP inhibitors and resistance is critical to improve their efficacy. In this review, we summarize the results of preclinical studies and the clinical application of PARP inhibitors, and discuss the future direction of PARP inhibitors as a potential marker-guided personalized medicine for cancer treatment.
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Affiliation(s)
- Yi Du
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston 77030
| | - Hirohito Yamaguchi
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston 77030
| | - Jennifer L. Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston 77030
- Graduate Institute of Biomedical Sciences and Center for Molecular Medicine, China Medical University, Taichung 40402
- Department of Biotechnology, Asia University, Taichung 41354
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston 77030
- Graduate Institute of Biomedical Sciences and Center for Molecular Medicine, China Medical University, Taichung 40402
- Department of Biotechnology, Asia University, Taichung 41354
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92
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Federico L, Chong Z, Zhang D, McGrail DJ, Zhao W, Jeong KJ, Vellano CP, Ju Z, Gagea M, Liu S, Mitra S, Dennison JB, Lorenzi PL, Cardnell R, Diao L, Wang J, Lu Y, Byers LA, Perou CM, Lin SY, Mills GB. A murine preclinical syngeneic transplantation model for breast cancer precision medicine. SCIENCE ADVANCES 2017; 3:e1600957. [PMID: 28439535 PMCID: PMC5397135 DOI: 10.1126/sciadv.1600957] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Accepted: 03/01/2017] [Indexed: 05/05/2023]
Abstract
We previously demonstrated that altered activity of lysophosphatidic acid in murine mammary glands promotes tumorigenesis. We have now established and characterized a heterogeneous collection of mouse-derived syngeneic transplants (MDSTs) as preclinical platforms for the assessment of personalized pharmacological therapies. Detailed molecular and phenotypic analyses revealed that MDSTs are the most heterogeneous group of genetically engineered mouse models (GEMMs) of breast cancer yet observed. Response of MDSTs to trametinib, a mitogen-activated protein kinase (MAPK) kinase inhibitor, correlated with RAS/MAPK signaling activity, as expected from studies in xenografts and clinical trials providing validation of the utility of the model. Sensitivity of MDSTs to talazoparib, a poly(adenosine 5'-diphosphate-ribose) polymerase (PARP) inhibitor, was predicted by PARP1 protein levels and by a new PARP sensitivity predictor (PSP) score developed from integrated analysis of drug sensitivity data of human cell lines. PSP score-based classification of The Cancer Genome Atlas breast cancer suggested that a subset of patients with limited therapeutic options would be expected to benefit from PARP-targeted drugs. These results indicate that MDSTs are useful models for studies of targeted therapies, and propose novel potential biomarkers for identification of breast cancer patients likely to benefit from personalized pharmacological treatments.
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Affiliation(s)
- Lorenzo Federico
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Corresponding author.
| | - Zechen Chong
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77230, USA
| | - Dong Zhang
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Daniel J. McGrail
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Wei Zhao
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Kang Jin Jeong
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Christopher P. Vellano
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Zhenlin Ju
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Mihai Gagea
- Department of Veterinary Medicine and Surgery, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Shuying Liu
- Department of Breast Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77230, USA
| | - Shreya Mitra
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jennifer B. Dennison
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Philip L. Lorenzi
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77230, USA
| | - Robert Cardnell
- Department of Thoracic Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Lixia Diao
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77230, USA
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77230, USA
| | - Yiling Lu
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Lauren A. Byers
- Department of Thoracic Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Charles M. Perou
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
| | - Shiaw-Yih Lin
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Gordon B. Mills
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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93
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Lee JM, Hays JL, Chiou VL, Annunziata CM, Swisher EM, Harrell MI, Yu M, Gordon N, Sissung TM, Ji J, Figg WD, Minasian L, Lipkowitz S, Wood BJ, Doroshow J, Kohn EC. Phase I/Ib study of olaparib and carboplatin in women with triple negative breast cancer. Oncotarget 2017; 8:79175-79187. [PMID: 29108297 PMCID: PMC5668030 DOI: 10.18632/oncotarget.16577] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 03/13/2017] [Indexed: 12/18/2022] Open
Abstract
PURPOSE To investigate the safety, activity, and potential biomarkers of response to olaparib and carboplatin combination in sporadic triple negative breast cancer (TNBC). EXPERIMENTAL DESIGN: Metastatic or recurrent TNBC patients with no germline BRCA mutation or with BRCAPro scores <10% and a negative family history were eligible. A 3+3 dose escalation tested olaparib capsules (400mg bid, days1-7) with carboplatin AUC3-5 on day1 or 2 every 21 days, ≤ 8 cycles, with olaparib 400mg bid maintenance. Peripheral blood mononuclear cells were collected for polymorphisms and PAR levels, and paired tumor biopsies (pre-/post-cycle 1) for proteomics and apoptosis endpoints. RESULTS 28 women were treated (median 5 prior regimens [0-12]). Dose-limiting toxicity was thrombocytopenia, and symptomatic hyponatremia with carboplatin AUC5. The maximum tolerated dose was olaparib 400mg bid+carboplatin AUC4. Grade 3 and 4 adverse events included neutropenia (36%), thrombocytopenia (11%), and anemia (11%). Responses included 1 complete response (CR; 69+months) and 5/27 partial responses (19%; median 4months [4-7]), for a response rate of 22%. Biomarker findings did not correlate with response. The long-term CR patient with prior negative BRCA testing was found to have deletion of BRCA1 exons1-2. CONCLUSIONS The olaparib/carboplatin combination is tolerable and has modest activity in sporadic TNBC patients. Further evaluation of predictive biomarkers to identify those with BRCA wild type who had response is warranted.
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Affiliation(s)
- Jung-Min Lee
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - John L Hays
- Division of Medical Oncology, Department of Internal Medicine, The James Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Victoria L Chiou
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Christina M Annunziata
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Elizabeth M Swisher
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
| | - Maria I Harrell
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA
| | - Minshu Yu
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Nicolas Gordon
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Tristan M Sissung
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Jiuping Ji
- National Clinical Target Validation Laboratory, Leidos Biomedical Research Inc, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - William D Figg
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Lori Minasian
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Stanley Lipkowitz
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Bradford J Wood
- Center for Interventional Oncology, Radiology, and Imaging Sciences, Clinical Center and National Cancer Institute, NIH, Bethesda, MD, USA
| | - James Doroshow
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Elise C Kohn
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
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94
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de Bono J, Ramanathan RK, Mina L, Chugh R, Glaspy J, Rafii S, Kaye S, Sachdev J, Heymach J, Smith DC, Henshaw JW, Herriott A, Patterson M, Curtin NJ, Byers LA, Wainberg ZA. Phase I, Dose-Escalation, Two-Part Trial of the PARP Inhibitor Talazoparib in Patients with Advanced Germline BRCA1/2 Mutations and Selected Sporadic Cancers. Cancer Discov 2017; 7:620-629. [PMID: 28242752 DOI: 10.1158/2159-8290.cd-16-1250] [Citation(s) in RCA: 307] [Impact Index Per Article: 43.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 12/15/2016] [Accepted: 02/21/2017] [Indexed: 12/12/2022]
Abstract
Talazoparib inhibits PARP catalytic activity, trapping PARP1 on damaged DNA and causing cell death in BRCA1/2-mutated cells. We evaluated talazoparib therapy in this two-part, phase I, first-in-human trial. Antitumor activity, MTD, pharmacokinetics, and pharmacodynamics of once-daily talazoparib were determined in an open-label, multicenter, dose-escalation study (NCT01286987). The MTD was 1.0 mg/day, with an elimination half-life of 50 hours. Treatment-related adverse events included fatigue (26/71 patients; 37%) and anemia (25/71 patients; 35%). Grade 3 to 4 adverse events included anemia (17/71 patients; 24%) and thrombocytopenia (13/71 patients; 18%). Sustained PARP inhibition was observed at doses ≥0.60 mg/day. At 1.0 mg/day, confirmed responses were observed in 7 of 14 (50%) and 5 of 12 (42%) patients with BRCA mutation-associated breast and ovarian cancers, respectively, and in patients with pancreatic and small cell lung cancer. Talazoparib demonstrated single-agent antitumor activity and was well tolerated in patients at the recommended dose of 1.0 mg/day.Significance: In this clinical trial, we show that talazoparib has single-agent antitumor activity and a tolerable safety profile. At its recommended phase II dose of 1.0 mg/day, confirmed responses were observed in patients with BRCA mutation-associated breast and ovarian cancers and in patients with pancreatic and small cell lung cancer. Cancer Discov; 7(6); 620-9. ©2017 AACR.This article is highlighted in the In This Issue feature, p. 539.
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Affiliation(s)
- Johann de Bono
- Drug Development Unit, Royal Marsden Hospital, London, United Kingdom.
| | - Ramesh K Ramanathan
- Clinical Trials Program, Virginia G. Piper Cancer Center at Scottsdale Healthcare/TGen, Scottsdale, Arizona
| | - Lida Mina
- Simon Cancer Center, Indiana University, Indianapolis, Indiana
| | - Rashmi Chugh
- Division of Hematology/Oncology, University of Michigan, Ann Arbor, Michigan
| | - John Glaspy
- Division of Hematology/Oncology, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Saeed Rafii
- Drug Development Unit, Royal Marsden Hospital, London, United Kingdom
| | - Stan Kaye
- Drug Development Unit, Royal Marsden Hospital, London, United Kingdom
| | - Jasgit Sachdev
- Clinical Trials Program, Virginia G. Piper Cancer Center at Scottsdale Healthcare/TGen, Scottsdale, Arizona
| | - John Heymach
- Department of Thoracic Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - David C Smith
- Division of Hematology/Oncology, University of Michigan, Ann Arbor, Michigan
| | - Joshua W Henshaw
- Pharmacokinetics/Pharmacodynamics, BioMarin Pharmaceutical, Inc., Novato, California
| | - Ashleigh Herriott
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Miranda Patterson
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Nicola J Curtin
- Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Lauren Averett Byers
- Department of Thoracic Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Zev A Wainberg
- Division of Hematology/Oncology, David Geffen School of Medicine at UCLA, Los Angeles, California
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Rebechi MT, Pratz KW. Genomic instability is a principle pathologic feature of FLT3 ITD kinase activity in acute myeloid leukemia leading to clonal evolution and disease progression. Leuk Lymphoma 2017; 58:1-11. [PMID: 28278729 DOI: 10.1080/10428194.2017.1283031] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Acute Myeloid Leukemia with FLT3 ITD mutations are associated with a poor prognosis characterized by a higher relapse rate, shorter relapse free survival, and decreased likelihood of response to therapy at relapse. FLT3 ITD signaling drives cell proliferation and survival. FLT3 ITD AML disease progression is associated with cytogenetic evolution and acquired tyrosine kinase inhibitor (TKI) resistance suggesting a potential role of genomic instability. There is growing evidence demonstrating a relationship between FLT3 signaling and increased DNA damage, specifically through increased reactive oxygen species (ROS) resulting in double-strand breaks (DSB), as well as impaired DNA repair, involving deficiencies in the non-homologous end joining (NHEJ), alternative non-homologous end joining (ALT NHEJ) and homologous recombination (HR) pathways. The role of genomic instability in the pathogenesis of FLT3 ITD AML warrants further examination as it offers potential therapeutic targets.
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Affiliation(s)
- Melanie T Rebechi
- a Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University , Baltimore , MD , USA
| | - Keith W Pratz
- a Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University , Baltimore , MD , USA
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96
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Sander Effron S, Makvandi M, Lin L, Xu K, Li S, Lee H, Hou C, Pryma DA, Koch C, Mach RH. PARP-1 Expression Quantified by [ 18F]FluorThanatrace: A Biomarker of Response to PARP Inhibition Adjuvant to Radiation Therapy. Cancer Biother Radiopharm 2017; 32:9-15. [PMID: 28118040 DOI: 10.1089/cbr.2016.2133] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Poly (ADP-ribose) polymerase 1 (PARP-1) is the major target of clinical PARP inhibitors and is a potential predictive biomarker for response to therapy. Due to the limited success of PARP inhibitors as monotherapy, investigators have shifted the clinical role of PARP inhibitors to the adjuvant setting. In this study, we evaluate the radiotracer [18F]FluorThanatrace ([18F]FTT) as a marker of PARP expression in vitro and the associated biological implications of PARP-1 expression in PARP inhibitor treatment adjuvant to radiation therapy. MATERIALS AND METHODS SNU-251 (BRCA1-mutant) and SKOV3 (BRCA1-WT) cell lines were evaluated in vitro by using the radiotracer [18F]FTT. Pharmacological binding assays were performed at baseline and were correlated with PARP-1 protein expression measured by Western blot protein analysis. Cell viability and clonogenic assays were used to characterize in vitro cytotoxicity for treatments, including: PARP inhibitors alone, radiation alone, and PARP inhibitor adjuvant to radiation. Western blot protein analysis was used to assess response to treatment by using γH2AX to measure DNA damage and PAR to measure the catalytic inhibition of PARP. RESULTS [18F]FTT was capable of measuring PARP-1 protein expression in vitro and corresponded to Western blot protein analysis at baseline. The addition of a PARP inhibitor enhanced radiation effects in both cell lines; however, a greater synergy was observed in the SNU-251 cell line that expresses a BRCA1 mutation and homologous recombination deficiency. Western blot protein analysis showed that the addition of a PARP inhibitor adjuvant to radiation increases DNA damage in both cell lines and reduces PARP enzymatic activity as measured by PAR. CONCLUSIONS In this work, we found that PARP-1 expression positively corresponds in vitro to the response of PARP inhibitors in combination with radiation therapy in ovarian cancer.
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Affiliation(s)
- Samuel Sander Effron
- 1 Division of Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Mehran Makvandi
- 1 Division of Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Lilie Lin
- 2 Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Kuiying Xu
- 1 Division of Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Shihong Li
- 1 Division of Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Hsiaoju Lee
- 1 Division of Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Catherine Hou
- 1 Division of Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Daniel A Pryma
- 1 Division of Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Cameron Koch
- 2 Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
| | - Robert H Mach
- 1 Division of Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University of Pennsylvania Perelman School of Medicine , Philadelphia, Pennsylvania
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97
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George E, Kim H, Krepler C, Wenz B, Makvandi M, Tanyi JL, Brown E, Zhang R, Brafford P, Jean S, Mach RH, Lu Y, Mills GB, Herlyn M, Morgan M, Zhang X, Soslow R, Drapkin R, Johnson N, Zheng Y, Cotsarelis G, Nathanson KL, Simpkins F. A patient-derived-xenograft platform to study BRCA-deficient ovarian cancers. JCI Insight 2017; 2:e89760. [PMID: 28097235 DOI: 10.1172/jci.insight.89760] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Approximately 50% of high-grade serous ovarian cancers (HGSOCs) have defects in genes involved in homologous recombination (HR) (i.e., BRCA1/2). Preclinical models to optimize therapeutic strategies for HR-deficient (HRD) HGSOC are lacking. We developed a preclinical platform for HRD HGSOCs that includes primary tumor cultures, patient-derived xenografts (PDXs), and molecular imaging. Models were characterized by immunohistochemistry, targeted sequencing, and reverse-phase protein array analysis. We also tested PDX tumor response to PARP, CHK1, and ATR inhibitors. Fourteen orthotopic HGSOC PDX models with BRCA mutations (BRCAMUT) were established with a 93% success rate. The orthotopic PDX model emulates the natural progression of HGSOC, including development of a primary ovarian tumor and metastasis to abdominal viscera. PDX response to standard chemotherapy correlated to that demonstrated in the patient. Pathogenic mutations and HGSOC markers were preserved after multiple mouse passages, indicating retention of underlying molecular mechanisms of carcinogenesis. A BRCA2MUT PDX with high p-CHK1 demonstrated a similar delay of tumor growth in response to PARP, CHK1, and ATR inhibitors. A poly (ADP-ribose) polymerase (PARP) inhibitor radiotracer correlated with PARP1 activity and showed response to PARP inhibition in the BRCA2MUT PDX model. In summary, the orthotopic HGSOC PDX represents a robust and reliable model to optimize therapeutic strategies for BRCAMUT HGSOC.
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Affiliation(s)
- Erin George
- Ovarian Cancer Research Center, Division of Gynecology Oncology, Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Hyoung Kim
- Ovarian Cancer Research Center, Division of Gynecology Oncology, Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Brandon Wenz
- Oncogenomics, Abramson Cancer Center, Philadelphia, Pennsylvania, USA
| | - Mehran Makvandi
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Janos L Tanyi
- Ovarian Cancer Research Center, Division of Gynecology Oncology, Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Eric Brown
- Cancer Biology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Rugang Zhang
- The Wistar Institute, Philadelphia, Pennsylvania, USA
| | | | - Stephanie Jean
- Ovarian Cancer Research Center, Division of Gynecology Oncology, Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Robert H Mach
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Yiling Lu
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Gordon B Mills
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - Mark Morgan
- Ovarian Cancer Research Center, Division of Gynecology Oncology, Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Xiaochen Zhang
- Ovarian Cancer Research Center, Division of Gynecology Oncology, Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Robert Soslow
- Department of Pathology, Memorial Sloan Kettering, New York, New York, USA
| | - Ronny Drapkin
- Ovarian Cancer Research Center, Division of Gynecology Oncology, Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Neil Johnson
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania, USA
| | - Ying Zheng
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - George Cotsarelis
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Fiona Simpkins
- Ovarian Cancer Research Center, Division of Gynecology Oncology, Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,The Wistar Institute, Philadelphia, Pennsylvania, USA
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98
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Pietanza MC, Zimmerman S, Peters S, Curran WJ. Seeking New Approaches to Patients With Small Cell Lung Cancer. Am Soc Clin Oncol Educ Book 2017; 35:e477-82. [PMID: 27249756 DOI: 10.1200/edbk_158710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The fundamental approach to the treatment of small cell lung cancer (SCLC) has not changed in the last several decades, with most advances being restricted to improved radiation approaches. The standard first-line chemotherapy regimen in the United States and Europe remains cisplatin or carboplatin plus etoposide in the treatment of limited stage (LS-SCLC) and extensive stage (ES-SCLC) disease. Radiation therapy is administered to those patients with LS-SCLC, whose cancer is confined to the chest in a single tolerable radiation field. This article will summarize a number of exciting observations regarding the biology of SCLC and how a deeper understanding of newly integrated targets and target pathways may lead to new and better therapeutic approaches in the near future.
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Affiliation(s)
- Marie Catherine Pietanza
- From the Merck Research Laboratories, Rahway, NJ; Department of Oncology, HFR Fribourg, Fribourg, Switzerland; Department of Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland; Winship Cancer Institute of Emory University, Atlanta, GA
| | - Stefan Zimmerman
- From the Merck Research Laboratories, Rahway, NJ; Department of Oncology, HFR Fribourg, Fribourg, Switzerland; Department of Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland; Winship Cancer Institute of Emory University, Atlanta, GA
| | - Solange Peters
- From the Merck Research Laboratories, Rahway, NJ; Department of Oncology, HFR Fribourg, Fribourg, Switzerland; Department of Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland; Winship Cancer Institute of Emory University, Atlanta, GA
| | - Walter J Curran
- From the Merck Research Laboratories, Rahway, NJ; Department of Oncology, HFR Fribourg, Fribourg, Switzerland; Department of Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland; Winship Cancer Institute of Emory University, Atlanta, GA
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99
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Qiu YF, Liu ZG, Yang WJ, Zhao Y, Tang J, Tang WZ, Jin Y, Li F, Zhong R, Wang H. Research progress in the treatment of small cell lung cancer. J Cancer 2017; 8:29-38. [PMID: 28123595 PMCID: PMC5264037 DOI: 10.7150/jca.16822] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 09/18/2016] [Indexed: 01/04/2023] Open
Abstract
Small cell lung cancer (SCLC) accounts for approximately 10-15% of all lung cancers. No significant improvement has been made for patients with SCLC in the past several decades. The main progresses were the thoracic radiation and prophylactic cranial irradiation (PCI) that improved the patient survival rate. For patients with limited disease and good performance status (PS), concurrent chemoradiotherapy (CCRT) followed by PCI should be considered. For extensive disease, the combination of etoposide and platinum-based chemotherapy remains the standard treatment and consolidative thoracic radiotherapy is beneficial for patients who have a significant respond to initial chemotherapy. However, the prognosis still remains poor. Recently, efforts have been focused on molecular targets and immunotherapy. But numerous molecular targets methods have failed to show a significant clinical benefit in patients with SCLC. It is anticipated that further development of research will depend on the on-going trials for molecular targeted therapy and immunotherapy which are promising and may improve the outcomes for SCLC in the next decade.
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Affiliation(s)
| | - Zhi-gang Liu
- ✉ Corresponding authors: Hui Wang, M.D., Department of Radiation Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University; E-mail: Fax: 0731-88651999. Zhi-gang Liu, M.D., Ph.D., Department of Radiation Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University. E-mail:
| | | | | | | | | | | | | | | | - Hui Wang
- Key Laboratory of Translational Radiation Oncology, Hunan Province. Department of Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
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100
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Abstract
Reverse Phase Protein Arrays (RPPA) represent a sensitive antibody-based proteomic approach, which enables simultaneous quantification of the abundance of multiple proteins and posttranslational modifications across multiple samples. Here, we provide protocols for RPPA performed on two distinct protein-binding substrates associated with two most commonly used RPPA platform technologies. We compare and contrast the respective advantages and limitations of each platform within the context of drug discovery applications.
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Affiliation(s)
- Kenneth G Macleod
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XR, UK
| | - Bryan Serrels
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XR, UK
| | - Neil O Carragher
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XR, UK.
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