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Adams KM, Wendt JR, Wood J, Olson S, Moreno R, Jin Z, Gopalan S, Lang JD. Cell-intrinsic platinum response and associated genetic and gene expression signatures in ovarian cancer cell lines and isogenic models. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.26.605381. [PMID: 39131380 PMCID: PMC11312449 DOI: 10.1101/2024.07.26.605381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Ovarian cancers are still largely treated with platinum-based chemotherapy as the standard of care, yet few biomarkers of clinical response have had an impact on clinical decision making as of yet. Two particular challenges faced in mechanistically deciphering platinum responsiveness in ovarian cancer have been the suitability of cell line models for ovarian cancer subtypes and the availability of information on comparatively how sensitive ovarian cancer cell lines are to platinum. We performed one of the most comprehensive profiles to date on 36 ovarian cancer cell lines across over seven subtypes and integrated drug response and multiomic data to improve on our understanding of the best cell line models for platinum responsiveness in ovarian cancer. RNA-seq analysis of the 36 cell lines in a single batch experiment largely conforms with the currently accepted subtyping of ovarian cancers, further supporting other studies that have reclassified cell lines and demonstrate that commonly used cell lines are poor models of high-grade serous ovarian carcinoma. We performed drug dose response assays in the 32 of these cell lines for cisplatin and carboplatin, providing a quantitative database of IC50s for these drugs. Our results demonstrate that cell lines largely fall either well above or below the equivalent dose of the clinical maximally achievable dose (Cmax) of each compound, allowing designation of cell lines as sensitive or resistant. We performed differential expression analysis for high-grade serous ovarian carcinoma cell lines to identify gene expression correlating with platinum-response. Further, we generated two platinum-resistant derivatives each for OVCAR3 and OVCAR4, as well as leveraged clinically-resistant PEO1/PEO4/PEO6 and PEA1/PEA2 isogenic models to perform differential expression analysis for seven total isogenic pairs of platinum resistant cell lines. While gene expression changes overall were heterogeneous and vast, common themes were innate immunity/STAT activation, epithelial to mesenchymal transition and stemness, and platinum influx/efflux regulators. In addition to gene expression analyses, we performed copy number signature analysis and orthogonal measures of homologous recombination deficiency (HRD) scar scores and copy number burden, which is the first report to our knowledge applying field-standard copy number signatures to ovarian cancer cell lines. We also examined markers and functional readouts of stemness that revealed that cell lines are poor models for examination of stemness contributions to platinum resistance, likely pointing to the fact that this is a transient state. Overall this study serves as a resource to determine the best cell lines to utilize for ovarian cancer research on certain subtypes and platinum response studies, as well as sparks new hypotheses for future study in ovarian cancer.
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Affiliation(s)
- Kristin M. Adams
- Center for Human Genomics and Precision Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Jae-Rim Wendt
- Center for Human Genomics and Precision Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Josie Wood
- Center for Human Genomics and Precision Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Sydney Olson
- Center for Human Genomics and Precision Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Ryan Moreno
- Center for Human Genomics and Precision Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Department of Computer Science, University of Wisconsin-Madison, Madison, WI, USA
| | - Zhongmou Jin
- Center for Human Genomics and Precision Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Srihari Gopalan
- Center for Human Genomics and Precision Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Jessica D. Lang
- Center for Human Genomics and Precision Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, WI, USA
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Bulanova D, Akimov Y, Senkowski W, Oikkonen J, Gall-Mas L, Timonen S, Elmadani M, Hynninen J, Hautaniemi S, Aittokallio T, Wennerberg K. A synthetic lethal dependency on casein kinase 2 in response to replication-perturbing therapeutics in RB1-deficient cancer cells. SCIENCE ADVANCES 2024; 10:eadj1564. [PMID: 38781347 PMCID: PMC11114247 DOI: 10.1126/sciadv.adj1564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 04/16/2024] [Indexed: 05/25/2024]
Abstract
Resistance to therapy commonly develops in patients with high-grade serous ovarian carcinoma (HGSC) and triple-negative breast cancer (TNBC), urging the search for improved therapeutic combinations and their predictive biomarkers. Starting from a CRISPR knockout screen, we identified that loss of RB1 in TNBC or HGSC cells generates a synthetic lethal dependency on casein kinase 2 (CK2) for surviving the treatment with replication-perturbing therapeutics such as carboplatin, gemcitabine, or PARP inhibitors. CK2 inhibition in RB1-deficient cells resulted in the degradation of another RB family cell cycle regulator, p130, which led to S phase accumulation, micronuclei formation, and accelerated PARP inhibition-induced aneuploidy and mitotic cell death. CK2 inhibition was also effective in primary patient-derived cells. It selectively prevented the regrowth of RB1-deficient patient HGSC organoids after treatment with carboplatin or niraparib. As about 25% of HGSCs and 40% of TNBCs have lost RB1 expression, CK2 inhibition is a promising approach to overcome resistance to standard therapeutics in large strata of patients.
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Affiliation(s)
- Daria Bulanova
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
- Institute for Molecular Medicine Finland, Helsinki Institute for Life Sciences, University of Helsinki, Helsinki, Finland
| | - Yevhen Akimov
- Institute for Molecular Medicine Finland, Helsinki Institute for Life Sciences, University of Helsinki, Helsinki, Finland
| | - Wojciech Senkowski
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Jaana Oikkonen
- Research Program in Systems Oncology (ONCOSYS), University of Helsinki, Helsinki, Finland
| | - Laura Gall-Mas
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Sanna Timonen
- Institute for Molecular Medicine Finland, Helsinki Institute for Life Sciences, University of Helsinki, Helsinki, Finland
| | | | - Johanna Hynninen
- Department of Obstetrics and Gynecology, Turku University Hospital and University of Turku, Turku, Finland
| | - Sampsa Hautaniemi
- Research Program in Systems Oncology (ONCOSYS), University of Helsinki, Helsinki, Finland
| | - Tero Aittokallio
- Institute for Molecular Medicine Finland, Helsinki Institute for Life Sciences, University of Helsinki, Helsinki, Finland
- Institute for Cancer Research, Department of Cancer Genetics, Oslo University Hospital, Oslo, Norway
- Oslo Centre for Biostatistics and Epidemiology (OCBE), University of Oslo, Oslo, Norway
| | - Krister Wennerberg
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
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Yang F, Wei W, Li G, Lan Q, Liu X, Gao L, Zhang C, Fan J, Li J. A novel marker integrating multiple genetic alterations better predicts platinum sensitivity in ovarian cancer than HRD score. Front Genet 2023; 14:1240068. [PMID: 37732324 PMCID: PMC10508345 DOI: 10.3389/fgene.2023.1240068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/17/2023] [Indexed: 09/22/2023] Open
Abstract
Introduction: Platinum-based chemotherapy is the first-line treatment strategy for ovarian cancer patients. The dismal prognosis of ovarian cancer was shown to be stringently associated with the heterogeneity of tumor cells in response to this therapy, therefore understanding platinum sensitivity in ovarian cancer would be helpful for improving patients' quality of life and clinical outcomes. HRDetect, utilized to characterize patients' homologous recombination repair deficiency, was used to predict patients' response to platinum-based chemotherapy. However, whether each of the single features contributing to HRD score is associated with platinum sensitivity remains elusive. Methods: We analyzed the whole-exome sequencing data of 196 patients who received platinum-based chemotherapy from the TCGA database. Genetic features were determined individually to see if they could indicate patients' response to platinum-based chemotherapy and prognosis, then integrated into a Pt-score employing LASSO regression model to assess its predictive performance. Results and discussion: Multiple genetic features, including bi-allelic inactivation of BRCA1/2 genes and genes involved in HR pathway, multiple somatic mutations in genes involved in DNA damage repair (DDR), and previously reported HRD-related features, were found to be stringently associated with platinum sensitivity and improved prognosis. Higher contributions of mutational signature SBS39 or ID6 predicted improved overall survival. Besides, arm-level loss of heterozygosity (LOH) of either chr4p or chr5q predicted significantly better disease-free survival. Notably, some of these features were found independent of HRD. And SBS3, an HRD-related feature, was found irrelevant to platinum sensitivity. Integrated all candidate markers using the LASSO model to yield a Pt-score, which showed better predictive ability compared to HRDetect in determining platinum sensitivity and predicting patients' prognosis, and this performance was validated in an independent cohort. The outcomes of our study will be instrumental in devising effective strategies for treating ovarian cancer with platinum-based chemotherapy.
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Affiliation(s)
- Fan Yang
- Department of Gynecologic Oncology, Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Wei Wei
- Department of Gynecologic Oncology, Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
| | - Ganghua Li
- GenePlus-Shenzhen, Shenzhen, Guangdong, China
| | - Qiongyu Lan
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xiwei Liu
- GenePlus-Shenzhen, Shenzhen, Guangdong, China
| | - Lin Gao
- GenePlus-Shenzhen, Shenzhen, Guangdong, China
| | - Chao Zhang
- GenePlus-Shenzhen, Shenzhen, Guangdong, China
| | - Jiangtao Fan
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Jundong Li
- Department of Gynecologic Oncology, Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China
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4
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Craig O, Nigam A, Dall GV, Gorringe K. Rare Epithelial Ovarian Cancers: Low Grade Serous and Mucinous Carcinomas. Cold Spring Harb Perspect Med 2023; 13:a038190. [PMID: 37277207 PMCID: PMC10513165 DOI: 10.1101/cshperspect.a038190] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The ovarian epithelial cancer histotypes can be divided into common and rare types. Common types include high-grade serous ovarian carcinomas and the endometriosis-associated cancers, endometrioid and clear-cell carcinomas. The less common histotypes are mucinous and low-grade serous, each comprising less than 10% of all epithelial carcinomas. Although histologically and epidemiologically distinct from each other, these histotypes share some genetic and natural history features that distinguish them from the more common types. In this review, we will consider the similarities and differences of these rare histological types, and the clinical challenges they pose.
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Affiliation(s)
- Olivia Craig
- Department of Laboratory Research, Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
- The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Abhimanyu Nigam
- Department of Laboratory Research, Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
- The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3010, Australia
| | | | - Kylie Gorringe
- Department of Laboratory Research, Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
- The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3010, Australia
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Wang L, Evans JC, Ahmed L, Allen C. Folate receptor targeted nanoparticles containing niraparib and doxorubicin as a potential candidate for the treatment of high grade serous ovarian cancer. Sci Rep 2023; 13:3226. [PMID: 36828860 PMCID: PMC9958112 DOI: 10.1038/s41598-023-28424-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 01/18/2023] [Indexed: 02/26/2023] Open
Abstract
Combination chemotherapy is an established approach used to manage toxicities while eliciting an enhanced therapeutic response. Delivery of drug combinations at specific molar ratios has been considered a means to achieve synergistic effects resulting in improvements in efficacy while minimizing dose related adverse drug reactions. The benefits of this approach have been realized with the FDA approval of Vyxeos®, the first liposome formulation to deliver a synergistic drug combination leading to improved overall survival against standard of care. In the current study, we demonstrate the synergistic potential of the PARP inhibitor niraparib and doxorubicin for the treatment of ovarian cancer. Through in vitro screening in a panel of ovarian cancer cell lines, we find that niraparib and doxorubicin demonstrate consistent synergy/additivity at the majority of evaluated molar ratio combinations. Further to these findings, we report formulation of a nanoparticle encapsulating our identified synergistic combination. We describe a rational design process to achieve highly stable liposomes that are targeted with folate to folate-receptor-alpha, which is known to be overexpressed on the surface of ovarian cancer cells. With this approach, we aim to achieve targeted delivery of niraparib and doxorubicin at a pre-determined synergistic molar ratio via increased receptor-mediated endocytosis.
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Affiliation(s)
- Lucy Wang
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, ON, M5S 3M2, Canada
| | - James C Evans
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, ON, M5S 3M2, Canada
| | - Lubabah Ahmed
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, ON, M5S 3M2, Canada
| | - Christine Allen
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, ON, M5S 3M2, Canada.
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6
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Nunes M, Duarte D, Vale N, Ricardo S. The Antineoplastic Effect of Carboplatin Is Potentiated by Combination with Pitavastatin or Metformin in a Chemoresistant High-Grade Serous Carcinoma Cell Line. Int J Mol Sci 2022; 24:ijms24010097. [PMID: 36613537 PMCID: PMC9820586 DOI: 10.3390/ijms24010097] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/19/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
The combination of Carboplatin with Paclitaxel is the mainstay treatment for high-grade serous carcinoma; however, many patients with advanced disease undergo relapse due to chemoresistance. Drug repurposing coupled with a combination of two or more compounds with independent mechanisms of action has the potential to increase the success rate of the antineoplastic treatment. The purpose of this study was to explore whether the combination of Carboplatin with repurposed drugs led to a therapeutic benefit. Hence, we assessed the cytotoxic effects of Carboplatin alone and in combination with several repurposed drugs (Pitavastatin, Metformin, Ivermectin, Itraconazole and Alendronate) in two tumoral models, i.e., Carboplatin (OVCAR8) and Carboplatin-Paclitaxel (OVCAR8 PTX R P) chemoresistant cell lines and in a non-tumoral (HOSE6.3) cell line. Cellular viability was measured using the Presto Blue assay, and the synergistic interactions were evaluated using the Chou-Talalay, Bliss Independence and Highest Single Agent reference models. Combining Carboplatin with Pitavastatin or Metformin displayed the highest cytotoxic effect and the strongest synergism among all combinations for OVCAR8 PTX R P cells, resulting in a chemotherapeutic effect superior to Carboplatin as a single agent. Concerning HOSE6.3 cells, combining Carboplatin with almost all the repurposed drugs demonstrated a safe pharmacological profile. Overall, we propose that Pitavastatin or Metformin could act synergistically in combination with Carboplatin for the management of high-grade serous carcinoma patients with a Carboplatin plus Paclitaxel resistance profile.
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Affiliation(s)
- Mariana Nunes
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto, 4200-135 Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal
| | - Diana Duarte
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), 4200-450 Porto, Portugal
- Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- CINTESIS@RISE, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - Nuno Vale
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), 4200-450 Porto, Portugal
- CINTESIS@RISE, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
- Department of Community Medicine, Health Information and Decision (MEDCIDS), Faculty of Medicine, University of Porto, 4200-450 Porto, Portugal
| | - Sara Ricardo
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto, 4200-135 Porto, Portugal
- Toxicology Research Unit (TOXRUN), University Institute of Health Sciences, Polytechnic and University Cooperative (CESPU), 4585-116 Gandra, Portugal
- Department of Pathology, Faculty of Medicine, University of Porto (FMUP), 4200-319 Porto, Portugal
- Correspondence:
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7
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Pitavastatin and Ivermectin Enhance the Efficacy of Paclitaxel in Chemoresistant High-Grade Serous Carcinoma. Cancers (Basel) 2022; 14:cancers14184357. [PMID: 36139522 PMCID: PMC9496819 DOI: 10.3390/cancers14184357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/01/2022] [Accepted: 09/03/2022] [Indexed: 11/29/2022] Open
Abstract
Simple Summary The main challenge in high-grade serous carcinoma management is to unveil therapeutic approaches to overcome chemoresistance. Drug combinations and repurposing of non-oncological agents are attractive strategies that allow for higher efficacy, decreased toxicity, and the overcoming of chemoresistance. Several non-oncological drugs display an effective anti-cancer activity and have been studied to be repurposed in multi-drug resistant neoplasms. The purpose of our study was to explore whether combining Paclitaxel with repurposed drugs (Pitavastatin, Metformin, Ivermectin, Itraconazole and Alendronate) led to a therapeutic benefit. Our results showed that the combination of Paclitaxel with Pitavastatin or Ivermectin demonstrates the highest cytotoxic effect and the strongest synergism among all combinations for two chemoresistant cell lines. Thus, the combination of these repurposed drugs with Paclitaxel could be a particularly valuable strategy to treat ovarian cancer patients with intrinsic or acquired chemoresistance. Abstract Chemotherapy is a hallmark in high-grade serous carcinoma management; however, chemoresistance and side effects lead to therapeutic interruption. Combining repurposed drugs with chemotherapy has the potential to improve antineoplastic efficacy, since drugs can have independent mechanisms of action and suppress different pathways simultaneously. This study aimed to explore whether the combination of Paclitaxel with repurposed drugs led to a therapeutic benefit. Thus, we evaluated the cytotoxic effects of Paclitaxel alone and in combination with several repurposed drugs (Pitavastatin, Metformin, Ivermectin, Itraconazole and Alendronate) in two tumor chemoresistant (OVCAR8 and OVCAR8 PTX R P) and a non-tumoral (HOSE6.3) cell lines. Cellular viability was assessed using Presto Blue assay, and the synergistic interactions were evaluated using Chou–Talalay, Bliss Independence and Highest Single Agent reference models. The combination of Paclitaxel with Pitavastatin or Ivermectin showed the highest cytotoxic effect and the strongest synergism among all combinations for both chemoresistant cell lines, resulting in a chemotherapeutic effect superior to both drugs alone. Almost all the repurposed drugs in combination with Paclitaxel presented a safe pharmacological profile in non-tumoral cells. Overall, we suggest that Pitavastatin and Ivermectin could act synergistically in combination with Paclitaxel, being promising two-drug combinations for high-grade serous carcinoma management.
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8
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Gunay G, Hamsici S, Lang GA, Lang ML, Kovats S, Acar H. Peptide Aggregation Induced Immunogenic Rupture (PAIIR). ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105868. [PMID: 35599386 PMCID: PMC9313945 DOI: 10.1002/advs.202105868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/06/2022] [Indexed: 05/11/2023]
Abstract
Immunogenic cell death (ICD) arises when cells are under stress, and their membranes are damaged. They release damage-associated molecular patterns (DAMPs) that stimulate and drive the type and magnitude of the immune response. In the presence of an antigen, DAMPs ride the longevity and efficacy of antigen-specific immunity. Yet, no tool can induce the controlled ICD with predictable results. A peptide-based tool, [II], is designed that aggregates in the cell and causes cell membrane damage, generates ICD and DAMPs release on various cell types, and hence can act as an adjuvant. An influenza vaccine is prepared by combining [II] with influenza hemagglutinin (HA) subunit antigens. The results show that [II] induced significantly higher HA-specific immunoglobulin G1 (IgG1) and IgG2a antibodies than HA-only immunized mice, while the peptide itself did not elicit antibodies. This paper demonstrates the first peptide-aggregation induced immunogenic rupture (PAIIR) approach as a vaccine adjuvant. PAIIR is a promising adjuvant with a high potential to promote universal protection upon influenza HA vaccination.
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Affiliation(s)
- Gokhan Gunay
- Stephenson School of Biomedical EngineeringUniversity of OklahomaNormanOK73069USA
| | - Seren Hamsici
- Stephenson School of Biomedical EngineeringUniversity of OklahomaNormanOK73069USA
| | - Gillian A. Lang
- Department of Microbiology and ImmunologyUniversity of Oklahoma Health Sciences CenterOklahoma CityOK73104USA
| | - Mark L. Lang
- Department of Microbiology and ImmunologyUniversity of Oklahoma Health Sciences CenterOklahoma CityOK73104USA
| | - Susan Kovats
- Department of Microbiology and ImmunologyUniversity of Oklahoma Health Sciences CenterOklahoma CityOK73104USA
- Arthritis & Clinical Immunology ProgramOklahoma Medical Research FoundationOklahoma CityOK73104USA
| | - Handan Acar
- Stephenson School of Biomedical EngineeringUniversity of OklahomaNormanOK73069USA
- Stephenson Cancer CenterUniversity of Oklahoma Health Sciences CenterOklahoma CityOK73104USA
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9
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Al‐Buthabhak HS, Falasca V, Yu Y, Sobolev AN, Skelton BW, Moggach SA, Ferro V, Al‐Salami H, Baker MV. Au‐NHC complexes with thiocarboxylate ligands: synthesis, structure, stability, thiol exchange and
in vitro
anti‐cancer activity. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hawraa S. Al‐Buthabhak
- Department of Chemistry, Faculty of Science University of Kufa Najaf Iraq
- School of Molecular Sciences M310, The University of Western Australia Perth WA Australia
| | - Valerio Falasca
- School of Molecular Sciences M310, The University of Western Australia Perth WA Australia
| | - Yu Yu
- Curtin Medical School, Curtin Health Innovation Research Institute Curtin University Perth WA Australia
- Division of Obstetrics & Gynaecology The University of Western Australia Medical School Perth WA Australia
| | - Alexandre N. Sobolev
- School of Molecular Sciences M310, The University of Western Australia Perth WA Australia
| | - Brian W. Skelton
- School of Molecular Sciences M310, The University of Western Australia Perth WA Australia
| | - Stephen A. Moggach
- School of Molecular Sciences M310, The University of Western Australia Perth WA Australia
| | - Vito Ferro
- School of Chemistry and Molecular Biosciences, The University of Queensland Brisbane, QLD Australia
| | - Hani Al‐Salami
- Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute Curtin University Perth WA Australia
- Hearing Therapeutics Ear Science Institute Australia Perth Western Australia Australia
| | - Murray V. Baker
- School of Molecular Sciences M310, The University of Western Australia Perth WA Australia
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10
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Matanes E, López-Ozuna VM, Octeau D, Baloch T, Racovitan F, Dhillon AK, Kessous R, Raban O, Kogan L, Salvador S, Lau S, Gotlieb WH, Yasmeen A. Inhibition of Poly ADP-Ribose Glycohydrolase Sensitizes Ovarian Cancer Cells to Poly ADP-Ribose Polymerase Inhibitors and Platinum Agents. Front Oncol 2021; 11:745981. [PMID: 34778062 PMCID: PMC8578901 DOI: 10.3389/fonc.2021.745981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/29/2021] [Indexed: 01/09/2023] Open
Abstract
Background Poly ADP-ribose glycohydrolase (PARG) is responsible for the catabolism of PARP-synthesized PAR to free ADP-ribose. Inhibition of PARG leads to DNA repair interruption and consequently induces cell death. This study aims to evaluate the effect of a PARG inhibitor (PARGi) on epithelial ovarian cancer (OC) cell lines, alone and in combination with a PARP inhibitor (PARPi) and/or Cisplatin. Methods PARG mRNA levels were studied in three different OC datasets: TCGA, Hendrix, and Meyniel. PARG protein levels were assessed in 100 OC specimens from our bio-bank. The therapeutic efficacy of PARGi was assessed using cell migration and clonogenic formation assays. Flow cytometry was used to evaluate the cell apoptosis rate and the changes in the cell cycle. Results PARG protein was highly expressed in 34% of the OC tumors and low expression was found in another 9%. Similarly, Hendrix, Meyneil and TCGA databases showed a significant up-regulation in PARG mRNA expression in OC samples as compared to normal tissue (P=0.001, P=0.005, P=0.005, respectively). The use of PARGi leads to decreased cell migration. PARGi in combination with PARPi or Cisplatin induced decreased survival of cells as compared to each drug alone. In the presence of PARPi and Cisplatin, PARG knockdown cell lines showed significant G2/M cell cycle arrest and cell death induction. Conclusions PARG inhibition appears as a complementary strategy to PARP inhibition in the treatment of ovarian cancer, especially in the presence of homologous recombination defects.
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Affiliation(s)
- Emad Matanes
- Division of Gynecologic Oncology, Jewish General Hospital, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - Vanessa M López-Ozuna
- Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - David Octeau
- Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - Tahira Baloch
- Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - Florentin Racovitan
- Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - Amandeep Kaur Dhillon
- Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - Roy Kessous
- Division of Gynecologic Oncology, Jewish General Hospital, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - Oded Raban
- Division of Gynecologic Oncology, Jewish General Hospital, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - Liron Kogan
- Division of Gynecologic Oncology, Jewish General Hospital, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - Shannon Salvador
- Division of Gynecologic Oncology, Jewish General Hospital, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - Susie Lau
- Division of Gynecologic Oncology, Jewish General Hospital, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - Walter H Gotlieb
- Division of Gynecologic Oncology, Jewish General Hospital, Montreal, QC, Canada.,Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
| | - Amber Yasmeen
- Segal Cancer Center, Lady Davis Institute of Medical Research, McGill University, Montreal, QC, Canada
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11
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Nunes M, Silva PMA, Coelho R, Pinto C, Resende A, Bousbaa H, Almeida GM, Ricardo S. Generation of Two Paclitaxel-Resistant High-Grade Serous Carcinoma Cell Lines With Increased Expression of P-Glycoprotein. Front Oncol 2021; 11:752127. [PMID: 34745981 PMCID: PMC8566917 DOI: 10.3389/fonc.2021.752127] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 09/30/2021] [Indexed: 02/06/2023] Open
Abstract
Debulking surgery followed by chemotherapy are the standard of care for high-grade serous carcinoma. After an initial good response to treatment, the majority of patients relapse with a chemoresistant profile, leading to a poor overall survival. Chemotherapy regimens used in high-grade serous carcinomas are based in a combination of classical chemotherapeutic drugs, namely, Carboplatin and Paclitaxel. The mechanisms underlying drug resistance and new drug discovery are crucial to improve patients’ survival. To uncover the molecular mechanisms of chemoresistance and test drugs capable of overcoming this resistant profile, it is fundamental to use good cellular models capable of mimicking the chemoresistant disease. Herein, we established two high-grade serous carcinoma cell lines with intrinsic resistance to Carboplatin and induced Paclitaxel resistance (OVCAR8 PTX R C and OVCAR8 PTX R P) derived from the OVCAR8 cell line. These two chemoresistant cell line variants acquired an enhanced resistance to Paclitaxel-induced cell death by increasing the drug efflux capacity, and this resistance was stable in long-term culture and following freeze/thaw cycles. The mechanism underlying Paclitaxel resistance resides in a significant increase in P-glycoprotein expression and, when this drug efflux pump was blocked with Verapamil, cells re-acquired Paclitaxel sensitivity. We generated two high-grade serous carcinoma cell lines, with a double-chemoresistant (Carboplatin and Paclitaxel) phenotype that mimics the majority of tumor recurrences in ovarian cancer context. This robust tool is suitable for preliminary drug testing towards the development of therapeutic strategies to overcome chemoresistance.
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Affiliation(s)
- Mariana Nunes
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto/Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal.,Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Patrícia M A Silva
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal.,TOXRUN, Toxicology Research Unit, University Institute of Health Sciences, Advanced Polytechnic and University Cooperative (CESPU), Gandra, Portugal
| | - Ricardo Coelho
- Ovarian Cancer Research, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Carla Pinto
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal.,Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, Portugal
| | - Albina Resende
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal.,Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, Portugal
| | - Hassan Bousbaa
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS), Gandra, Portugal
| | - Gabriela M Almeida
- Expression Regulation in Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto/Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal.,Faculty of Medicine from University of Porto (FMUP), Porto, Portugal
| | - Sara Ricardo
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S) of the University of Porto/Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal.,TOXRUN, Toxicology Research Unit, University Institute of Health Sciences, Advanced Polytechnic and University Cooperative (CESPU), Gandra, Portugal.,Faculty of Medicine from University of Porto (FMUP), Porto, Portugal
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12
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Al-Buthabhak HS, Yu Y, Sobolev A, Al-Salami H, Baker MV. 3,5-Dibromophenyl-functionalised imidazolium salts and their corresponding [Au(NHC)2]+ complexes: synthesis, supramolecular chemistry and anti-cancer activity. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01082-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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ADAM17 Inhibition Increases the Impact of Cisplatin Treatment in Ovarian Cancer Spheroids. Cancers (Basel) 2021; 13:cancers13092039. [PMID: 33922533 PMCID: PMC8122950 DOI: 10.3390/cancers13092039] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/15/2021] [Accepted: 04/22/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Ovarian cancer (OvCa) treatment is still a challenge, mainly due to acquired resistance mechanisms during the course of chemotherapy. Here, we show the enhanced cytotoxicity of the combined treatment with the ADAM17 inhibitor GW280264X and cisplatin in comparison with cisplatin monotherapy. This effect was visible in five of five ovarian cancer cell lines grown as a monolayer and two of three tested cell lines in three-dimensional tumor spheroids. Tumor spheroids derived from primary tumor and ascites cells were sensitized to cisplatin treatment by GW280264X. In summary, the combination of ADAM17 inhibition with conventional chemotherapy seems to be a promising strategy to overcome chemotherapy resistance in OvCa. Abstract Chemotherapy resistance is a major challenge in ovarian cancer (OvCa). Thus, novel treatment combinations are highly warranted. However, many promising drug candidates tested in two-dimensional (2D) cell culture have not proved successful in the clinic. For this reason, we analyzed our drug combination not only in monolayers but also in three-dimensional (3D) tumor spheroids. One potential therapeutic target for OvCa is A disintegrin and metalloprotease 17 (ADAM17). ADAM17 can be activated by chemotherapeutics, which leads to enhanced tumor growth due to concomitant substrate cleavage. Therefore, blocking ADAM17 during chemotherapy may overcome resistance. Here, we tested the effect of the ADAM17 inhibitor GW280264X in combination with cisplatin on ovarian cancer cells in 2D and 3D. In 2D, the effect on five cell lines was analyzed with two readouts. Three of these cell lines formed dense aggregates or spheroids (HEY, SKOV-3, and OVCAR-8) in 3D and the treatment effect was analyzed with a multicontent readout (cytotoxicity, viability, and caspase3/7 activation). We tested the combined therapy on tumor spheroids derived from primary patient cells. In 2D, we found a significant reduction in the half minimal (50%) inhibitory concentration (IC50) value of the combined treatment (GW280264X plus cisplatin) in comparison with cisplatin monotherapy in all five cell lines with both 2D readout assays (viability and caspase activation). In contrast, the combined treatment only showed an IC50 reduction in HEY and OVCAR-8 3D tumor spheroid models using caspase3/7 activity or CelltoxTM Green as the readout. Finally, we found an improved effect of GW280264X with cisplatin in tumor spheroids derived from patient samples. In summary, we demonstrate that ADAM17 inhibition is a promising treatment strategy in ovarian cancer.
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14
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Plasticity of ether lipids promotes ferroptosis susceptibility and evasion. Nature 2020; 585:603-608. [PMID: 32939090 DOI: 10.1038/s41586-020-2732-8] [Citation(s) in RCA: 411] [Impact Index Per Article: 102.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 06/24/2020] [Indexed: 12/25/2022]
Abstract
Ferroptosis-an iron-dependent, non-apoptotic cell death process-is involved in various degenerative diseases and represents a targetable susceptibility in certain cancers1. The ferroptosis-susceptible cell state can either pre-exist in cells that arise from certain lineages or be acquired during cell-state transitions2-5. However, precisely how susceptibility to ferroptosis is dynamically regulated remains poorly understood. Here we use genome-wide CRISPR-Cas9 suppressor screens to identify the oxidative organelles peroxisomes as critical contributors to ferroptosis sensitivity in human renal and ovarian carcinoma cells. Using lipidomic profiling we show that peroxisomes contribute to ferroptosis by synthesizing polyunsaturated ether phospholipids (PUFA-ePLs), which act as substrates for lipid peroxidation that, in turn, results in the induction of ferroptosis. Carcinoma cells that are initially sensitive to ferroptosis can switch to a ferroptosis-resistant state in vivo in mice, which is associated with extensive downregulation of PUFA-ePLs. We further find that the pro-ferroptotic role of PUFA-ePLs can be extended beyond neoplastic cells to other cell types, including neurons and cardiomyocytes. Together, our work reveals roles for the peroxisome-ether-phospholipid axis in driving susceptibility to and evasion from ferroptosis, highlights PUFA-ePL as a distinct functional lipid class that is dynamically regulated during cell-state transitions, and suggests multiple regulatory nodes for therapeutic interventions in diseases that involve ferroptosis.
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15
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Marker SC, King AP, Swanda RV, Vaughn B, Boros E, Qian SB, Wilson JJ. Exploring Ovarian Cancer Cell Resistance to Rhenium Anticancer Complexes. Angew Chem Int Ed Engl 2020; 59:13391-13400. [PMID: 32396709 PMCID: PMC7482417 DOI: 10.1002/anie.202004883] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/11/2020] [Indexed: 11/09/2022]
Abstract
Rhenium tricarbonyl complexes have been recently investigated as novel anticancer agents. However, little is understood about their mechanisms of action, as well as the means by which cancer cells respond to chronic exposure to these compounds. To gain a deeper mechanistic insight into these rhenium anticancer agents, we developed and characterized an ovarian cancer cell line that is resistant to a previously studied compound [Re(CO)3 (dmphen)(ptolICN)]+ , where dmphen=2,9-dimethyl-1,10-phenanthroline and ptolICN=para-tolyl isonitrile, called TRIP. This TRIP-resistant ovarian cancer cell line, A2780TR, was found to be 9 times less sensitive to TRIP compared to the wild-type A2780 ovarian cancer cell line. Furthermore, the cytotoxicities of established drugs and other rhenium anticancer agents in the TRIP-resistant cell line were determined. Notably, the drug taxol was found to exhibit a 184-fold decrease in activity in the A2780TR cell line, suggesting that mechanisms of resistance towards TRIP and this drug are similar. Accordingly, expression levels of the ATP-binding cassette transporter P-glycoprotein, an efflux transporter known to detoxify taxol, were found to be elevated in the A2780TR cell line. Additionally, a gene expression analysis using the National Cancer Institute 60 cell line panel identified the MT1E gene to be overexpressed in cells that are less sensitive to TRIP. Because this gene encodes for metallothioneins, this result suggests that detoxification by this class of proteins is another mechanism for resistance to TRIP. The importance of this gene in the A2780TR cell line was assessed, confirming that its expression is elevated in this cell line as well. As the first study to investigate and identify the cancer cell resistance pathways in response to a rhenium complex, this report highlights important similarities and differences in the resistance responses of ovarian cancer cells to TRIP and conventional drugs.
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Affiliation(s)
- Sierra C. Marker
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - A. Paden King
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Robert V. Swanda
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, 14853, United States
| | - Brett Vaughn
- Department of Chemistry, Stony Brook University, Stony Brook, New York, 11794, United States
| | - Eszter Boros
- Department of Chemistry, Stony Brook University, Stony Brook, New York, 11794, United States
| | - Shu-Bing Qian
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, 14853, United States
| | - Justin J. Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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16
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Marker SC, King AP, Swanda RV, Vaughn B, Boros E, Qian SB, Wilson JJ. Exploring ovarian cancer cell resistance to rhenium anticancer complexes. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 132:13493-13502. [PMID: 34366495 PMCID: PMC8340908 DOI: 10.1002/ange.202004883] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Indexed: 12/29/2022]
Abstract
Rhenium tricarbonyl complexes have been recently investigated as novel anticancer agents. However, little is understood about their mechanisms of action, as well as the means by which cancer cells respond to chronic exposure to these compounds. To gain a deeper mechanistic insight into these rhenium anticancer agents, we developed and characterized an ovarian cancer cell line that is resistant to a previously studied compound [Re(CO)3(dmphen)(ptolICN)]+, where dmphen = 2,9-dimethyl-1,10-phenanthroline and ptolICN = para-tolyl isonitrile, called TRIP. This TRIP-resistant ovarian cancer cell line, A2780TR, was found to be 9 times less sensitive to TRIP compared to the wild-type A2780 ovarian cancer cell line. Furthermore, the cytotoxicities of established drugs and other rhenium anticancer agents in the TRIP-resistant cell line were determined. Notably, the drug taxol was found to exhibit a 184-fold decrease in activity in the A2780TR cell line, suggesting that mechanisms of resistance towards TRIP and this drug are similar. Accordingly, expression levels of the ATP-binding cassette transporter P-glycoprotein, an efflux transporter known to detoxify taxol, were found to be elevated in the A2780TR cell line. Additionally, a gene expression analysis using the National Cancer Institute 60 cell line panel identified the MT1E gene to be overexpressed in cells that are less sensitive to TRIP. Because this gene encodes for metallothioneins, this result suggests that detoxification by this class of proteins is another mechanism for resistance to TRIP. The importance of this gene in the A2780TR cell line was assessed, confirming that its expression is elevated in this cell line as well. As the first study to investigate and identify the cancer cell resistance pathways in response to a rhenium complex, this report high-lights important similarities and differences in the resistance responses of ovarian cancer cells to TRIP and conventional drugs.
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Affiliation(s)
- Sierra C. Marker
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - A. Paden King
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Robert V. Swanda
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, 14853, United States
| | - Brett Vaughn
- Department of Chemistry, Stony Brook University, Stony Brook, New York, 11794, United States
| | - Eszter Boros
- Department of Chemistry, Stony Brook University, Stony Brook, New York, 11794, United States
| | - Shu-Bing Qian
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, 14853, United States
| | - Justin J. Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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17
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Links between cancer metabolism and cisplatin resistance. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2020; 354:107-164. [PMID: 32475471 DOI: 10.1016/bs.ircmb.2020.01.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Cisplatin is one of the most potent and widely used chemotherapeutic agent in the treatment of several solid tumors, despite the high toxicity and the frequent relapse of patients due to the onset of drug resistance. Resistance to chemotherapeutic agents, either intrinsic or acquired, is currently one of the major problems in oncology. Thus, understanding the biology of chemoresistance is fundamental in order to overcome this challenge and to improve the survival rate of patients. Studies over the last 30 decades have underlined how resistance is a multifactorial phenomenon not yet completely understood. Recently, tumor metabolism has gained a lot of interest in the context of chemoresistance; accumulating evidence suggests that the rearrangements of the principal metabolic pathways within cells, contributes to the sensitivity of tumor to the drug treatment. In this review, the principal metabolic alterations associated with cisplatin resistance are highlighted. Improving the knowledge of the influence of metabolism on cisplatin response is fundamental to identify new possible metabolic targets useful for combinatory treatments, in order to overcome cisplatin resistance.
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18
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Papp E, Hallberg D, Konecny GE, Bruhm DC, Adleff V, Noë M, Kagiampakis I, Palsgrove D, Conklin D, Kinose Y, White JR, Press MF, Drapkin R, Easwaran H, Baylin SB, Slamon D, Velculescu VE, Scharpf RB. Integrated Genomic, Epigenomic, and Expression Analyses of Ovarian Cancer Cell Lines. Cell Rep 2019; 25:2617-2633. [PMID: 30485824 PMCID: PMC6481945 DOI: 10.1016/j.celrep.2018.10.096] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 06/07/2018] [Accepted: 10/25/2018] [Indexed: 12/27/2022] Open
Abstract
To improve our understanding of ovarian cancer, we performed genome-wide analyses of 45 ovarian cancer cell lines. Given the challenges of genomic analyses of tumors without matched normal samples, we developed approaches for detection of somatic sequence and structural changes and integrated these with epigenetic and expression alterations. Alterations not previously implicated in ovarian cancer included amplification or overexpression of ASXL1 and H3F3B, deletion or underexpression of CDC73 and TGF-beta receptor pathway members, and rearrangements of YAP1-MAML2 and IKZF2-ERBB4. Dose-response analyses to targeted therapies revealed unique molecular dependencies, including increased sensitivity of tumors with PIK3CA and PPP2R1A alterations to PI3K inhibitor GNE-493, MYC amplifications to PARP inhibitor BMN673, and SMAD3/4 alterations to MEK inhibitor MEK162. Genome-wide rearrangements provided an improved measure of sensitivity to PARP inhibition. This study provides a comprehensive and broadly accessible resource of molecular information for the development of therapeutic avenues in ovarian cancer. The overall survival of patients with late-stage ovarian cancer is dismal. To identify therapeutic opportunities, Papp et al. integrate genomic, epigenomic, and expression analyses to provide a resource of molecular abnormalities in ovarian cancer cell lines and use these to identify tumors sensitive to PARP, MEK, and PI3K inhibitors.
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Affiliation(s)
- Eniko Papp
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Dorothy Hallberg
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Gottfried E Konecny
- Division of Hematology and Oncology, Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90024, USA
| | - Daniel C Bruhm
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Vilmos Adleff
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Michaël Noë
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Ioannis Kagiampakis
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Doreen Palsgrove
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Dylan Conklin
- Division of Hematology and Oncology, Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90024, USA
| | - Yasuto Kinose
- Department of Obstetrics and Gynecology Penn Ovarian Cancer Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - James R White
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Michael F Press
- Department of Pathology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA 90033, USA
| | - Ronny Drapkin
- Department of Obstetrics and Gynecology Penn Ovarian Cancer Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Hariharan Easwaran
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Stephen B Baylin
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Dennis Slamon
- Division of Hematology and Oncology, Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90024, USA
| | - Victor E Velculescu
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
| | - Robert B Scharpf
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
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19
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Guo LL, Wang SF. Downregulated Long Noncoding RNA GAS5 Fails to Function as Decoy of CEBPB, Resulting in Increased GDF15 Expression and Rapid Ovarian Cancer Cell Proliferation. Cancer Biother Radiopharm 2019; 34:537-546. [PMID: 31314588 DOI: 10.1089/cbr.2019.2889] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Introduction: Growth differentiation factor 15 (GDF15), a newly identified member of transforming growth factor (GDF) superfamily, is upregulated in ovarian (OV) cancer. Upregulated GDF15 positively correlates with poor prognosis of OV cancer. Thus, elucidation of the mechanism underlying GDF15 overexpression is important. Method and Results: PROMO and JASPAR prediction software were used to find transcription factors for GDF15 expression. Data from TCGA database were analyzed to find long noncoding RNAs (lncRNAs) that were also abnormally expressed in OV cancer and had associations with GDF15 expression. Transcription factor CEBPB was predicted as an important regulator of GDF15, confirmed by luciferase reporter assay. However, CEBPB expression was not significantly changed in OV cancer. Data from TCGA database showed that lncRNA GAS5 is downregulated in OV cancer and its expression is negatively correlated with GDF15 expression. RPISeq showed high affinity of GAS5 to CEBPB and this was confirmed by RNA-binding protein immunoprecipitation assay. GAS5 overexpression increased its binding to CEBPB and consequently downregulated GDF15. GAS5 overexpression and GDF15 knockdown decreased viability and increased apoptosis of OV cancer cells, but CEBPB overexpression had opposite effects. However, simultaneous GAS5 and CEBPB overexpression or CEBPB overexpression together with GDF15 knockdown had no effect on cell viability and apoptosis. Conclusion: GAS5 functions as decoy of CEBPB, blocking transcription-promoting effect of CEBPB on GDF15.
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Affiliation(s)
- Lin-Lin Guo
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, China
| | - Shan-Feng Wang
- Department of Obstetrics and Gynecology, First Affiliated Hospital of Jinzhou Medical University, Jinzhou City, China
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20
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Ovarian cancer cell lines derived from non-serous carcinomas migrate and invade more aggressively than those derived from high-grade serous carcinomas. Sci Rep 2019; 9:5515. [PMID: 30940866 PMCID: PMC6445084 DOI: 10.1038/s41598-019-41941-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/18/2019] [Indexed: 12/24/2022] Open
Abstract
The term ovarian cancer describes a heterogeneous group of tumours that grow in the ovary but are not necessarily of ovarian origin. Recent genomic analysis has shown that many of the most commonly used ovarian cancer cell lines have been mischaracterised, leading to erroneous conclusions and a gap in the translation of laboratory research into novel treatments for patients. Here, we use 10 epithelial ovarian cancer cell lines to investigate 2D migration, cell cycle parameters and 3D invasion behaviour into different substrates and find significant differences between the behaviours of cell lines from different origins. Cell lines derived from non-serous carcinomas migrated more quickly and were more likely to invade into Matrigel and collagen I substrates than cell lines derived from high-grade serous carcinomas. However not all cell lines derived from non-serous carcinomas exhibited similar invasive behaviour. These findings may reflect differences in the behaviour of the primary tumour types from which the cell lines were derived, given that high-grade serous carcinomas typically expand and spread over peritoneal surfaces. These results provide the basis of an in vitro model for identifying differences between ovarian cancer tumour types.
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21
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He W, You Y, Du S, Lei T, Wang H, Li X, He X, Tong R, Wang Y. Anti-neoplastic effect of mangiferin on human ovarian adenocarcinoma OVCAR8 cells via the regulation of YAP. Oncol Lett 2019; 17:1008-1018. [PMID: 30655860 PMCID: PMC6313056 DOI: 10.3892/ol.2018.9708] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 09/06/2018] [Indexed: 02/06/2023] Open
Abstract
Ovarian cancer is the most malignant gynecologic neoplasm in women and has the worst prognosis of all cancer types in women based on the 5-year survival rates. A previous study indicated that mangiferin exerts an anti-neoplastic effect on human ovarian cancer cells by targeting Notch3. Additionally, it has been demonstrated that Notch signaling is a functionally important downstream effector of Yes-associated protein (YAP), therefore it was hypothesized that YAP may be involved in the antitumor effect of mangiferin. The present study aimed to further reveal the mangiferin-mediated inhibitory effect on ovarian cancer and investigate the molecular anticancer mechanism of mangiferin. Based on the in vitro data, accompanied with the significantly reduced cell proliferation of mangiferin-treated cells compared with mangiferin-treated YAP-overexpressed cells (P<0.05), YAP expression was identified to be substantially downregulated by mangiferin. In contrast, observations of the cell morphology and apoptotic percentages revealed that the antitumor effect of mangiferin may be reversed by YAP overexpression. Furthermore, decreased levels of migration and invasion were observed in mangiferin-treated cells, which may also be abrogated by YAP overexpression. Thus, these data further demonstrated that mangiferin inhibits metastasis by regulating YAP. Additionally, due to the frequent chemoresistance observed in cisplatin-based chemotherapy, the present study evaluated the cisplatin resistance in OVCAR8 cells and elucidated that mangiferin may sensitize the tumor cells to cisplatin; and this improved sensitization was also abolished by YAP overexpression. These results collectively indicated that YAP was not only closely associated with the anticancer effect of mangiferin, but also mediated drug resistance in tumor. Furthermore, the downregulation of downstream TEA domain transcription factor 4 expression was observed in the mangiferin-treated cells, further validating the inhibitory effect of mangiferin on YAP. In addition, OVCAR8 cell xenograft models revealed that through increasing the sensitivity of a tumor to cisplatin, mangiferin inhibited the growth of a tumor and increased the survival time of tumor xenograft mice. Based on these results, it was concluded that mangiferin may inhibit tumor cell growth and enhance cisplatin-sensitivity in OVCAR8 cells via the regulation of the YAP pathway. Altogether, by targeting YAP and enhancing the response to cisplatin treatment, mangiferin potentially functioned as a novel therapeutic agent in the treatment of ovarian cancer.
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Affiliation(s)
- Wenjing He
- Department of Gynecology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Yaodong You
- Clinical Medical College of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, P.R. China
| | - Suya Du
- Department of Pharmacy, Chengdu Military General Hospital, Chengdu, Sichuan 610083, P.R. China.,School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P.R. China
| | - Tiantian Lei
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P.R. China
| | - Hailian Wang
- Institute of Organ Transplantation, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Xiang Li
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, P.R. China
| | - Xia He
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Rongsheng Tong
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Yi Wang
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
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22
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Huang H, Lampson M, Efimov A, Yen TJ. Chromosome instability in tumor cells due to defects in Aurora B mediated error correction at kinetochores. Cell Cycle 2018; 17:2622-2636. [PMID: 30513041 PMCID: PMC6300107 DOI: 10.1080/15384101.2018.1553340] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
We characterized a panel of cancer cells and found that they exhibited chromosome instability (CIN) that was associated with high frequencies of aberrant kinetochore:microtubule attachments. Failure to resolve these defective attachments before anaphase onset can lead to missegregation of chromosomes. Aurora B kinase is concentrated at the inner centromere where it contributes to multiple kinetochore functions, one of which is in error-correction. Analysis of several CIN cell lines showed that many aspects of Aurora B kinase functions were normal. Furthermore, the amount and activity of Aurora B kinase was not reduced at the kinetochores of CIN cells that were examined. However, phosphorylation of a centromeric biosensor for Aurora B in OVCAR10, MCF7 and U2OS cells was consistently reduced relative to non CIN cells. This suggested a localized problem with Aurora B’s ability to phosphorylate substrates important for error correction. This possibility was supported by our ability to improve error correction and reduce the frequency of lagging chromosome in CIN cells by directing endogenous Aurora B to the region of centromere that was tested by the biosensor. Our studies suggest that the kinetochores of CIN cells have a defect that limits accessibility of Aurora B to substrates that are important for error-correction.
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Affiliation(s)
- Haomin Huang
- a Cancer Biology Program , Philadelphia , PA , USA
| | - Michael Lampson
- b Department of Biology , University of Pennsylvania , Philadelphia , PA , USA
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23
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Reinartz S, Lieber S, Pesek J, Brandt DT, Asafova A, Finkernagel F, Watzer B, Nockher WA, Nist A, Stiewe T, Jansen JM, Wagner U, Konzer A, Graumann J, Grosse R, Worzfeld T, Müller-Brüsselbach S, Müller R. Cell type-selective pathways and clinical associations of lysophosphatidic acid biosynthesis and signaling in the ovarian cancer microenvironment. Mol Oncol 2018; 13:185-201. [PMID: 30353652 PMCID: PMC6360368 DOI: 10.1002/1878-0261.12396] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 10/02/2018] [Accepted: 10/14/2018] [Indexed: 12/18/2022] Open
Abstract
The peritoneal fluid of ovarian carcinoma patients promotes cancer cell invasion and metastatic spread with lysophosphatidic acid (LPA) as a potentially crucial mediator. However, the origin of LPA in ascites and the clinical relevance of individual LPA species have not been addressed. Here, we show that the levels of multiple acyl‐LPA species are strongly elevated in ascites versus plasma and are associated with short relapse‐free survival. Data derived from transcriptome and secretome analyses of primary ascite‐derived cells indicate that (a) the major route of LPA synthesis is the consecutive action of a secretory phospholipase A2 (PLA2) and autotaxin, (b) that the components of this pathway are coordinately upregulated in ascites, and (c) that CD163+CD206+ tumor‐associated macrophages play an essential role as main producers of PLA2G7 and autotaxin. The latter conclusion is consistent with mass spectrometry‐based metabolomic analyses of conditioned medium from ascites cells, which showed that tumor‐associated macrophages, but not tumor cells, are able to produce 20:4 acyl‐LPA in lipid‐free medium. Furthermore, our transcriptomic data revealed that LPA receptor (LPAR) genes are expressed in a clearly cell type‐selective manner: While tumor cells express predominantly LPAR1‐3, macrophages and T cells also express LPAR5 and LPAR6 at high levels, pointing to cell type‐selective LPA signaling pathways. RNA profiling identified cytokines linked to cell motility and migration as the most conspicuous class of LPA‐induced genes in macrophages, suggesting that LPA exerts protumorigenic properties at least in part via the tumor secretome.
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Affiliation(s)
- Silke Reinartz
- Clinic for Gynecology, Gynecological Oncology and Gynecological Endocrinology, Center for Tumor Biology and Immunology (ZTI), Marburg, Germany
| | - Sonja Lieber
- Center for Tumor Biology and Immunology (ZTI), Institute of Molecular Biology and Tumor Research (IMT), Marburg, Germany
| | - Jelena Pesek
- Metabolomics Core Facility, Philipps University, Marburg, Germany
| | | | - Alina Asafova
- Clinic for Gynecology, Gynecological Oncology and Gynecological Endocrinology, Center for Tumor Biology and Immunology (ZTI), Marburg, Germany.,Center for Tumor Biology and Immunology (ZTI), Institute of Molecular Biology and Tumor Research (IMT), Marburg, Germany
| | - Florian Finkernagel
- Center for Tumor Biology and Immunology (ZTI), Institute of Molecular Biology and Tumor Research (IMT), Marburg, Germany
| | - Bernard Watzer
- Metabolomics Core Facility, Philipps University, Marburg, Germany
| | | | - Andrea Nist
- Genomics Core Facility, Philipps University, Marburg, Germany
| | - Thorsten Stiewe
- Genomics Core Facility, Philipps University, Marburg, Germany
| | - Julia M Jansen
- Clinic for Gynecology, Gynecological Oncology and Gynecological Endocrinology, UKGM, Marburg, Germany
| | - Uwe Wagner
- Clinic for Gynecology, Gynecological Oncology and Gynecological Endocrinology, UKGM, Marburg, Germany
| | - Anne Konzer
- Biomolecular Mass Spectrometry, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany.,German Centre for Cardiovascular Research (DZHK), Kerckhoff Klinik, Bad Nauheim, Germany
| | - Johannes Graumann
- Biomolecular Mass Spectrometry, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany.,German Centre for Cardiovascular Research (DZHK), Kerckhoff Klinik, Bad Nauheim, Germany
| | | | - Thomas Worzfeld
- Institute of Pharmacology, Marburg, Germany.,Department of Pharmacology, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Sabine Müller-Brüsselbach
- Center for Tumor Biology and Immunology (ZTI), Institute of Molecular Biology and Tumor Research (IMT), Marburg, Germany
| | - Rolf Müller
- Center for Tumor Biology and Immunology (ZTI), Institute of Molecular Biology and Tumor Research (IMT), Marburg, Germany
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24
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Kondrashova O, Topp M, Nesic K, Lieschke E, Ho GY, Harrell MI, Zapparoli GV, Hadley A, Holian R, Boehm E, Heong V, Sanij E, Pearson RB, Krais JJ, Johnson N, McNally O, Ananda S, Alsop K, Hutt KJ, Kaufmann SH, Lin KK, Harding TC, Traficante N, deFazio A, McNeish IA, Bowtell DD, Swisher EM, Dobrovic A, Wakefield MJ, Scott CL. Methylation of all BRCA1 copies predicts response to the PARP inhibitor rucaparib in ovarian carcinoma. Nat Commun 2018; 9:3970. [PMID: 30266954 PMCID: PMC6162272 DOI: 10.1038/s41467-018-05564-z] [Citation(s) in RCA: 182] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 06/25/2018] [Indexed: 01/17/2023] Open
Abstract
Accurately identifying patients with high-grade serous ovarian carcinoma (HGSOC) who respond to poly(ADP-ribose) polymerase inhibitor (PARPi) therapy is of great clinical importance. Here we show that quantitative BRCA1 methylation analysis provides new insight into PARPi response in preclinical models and ovarian cancer patients. The response of 12 HGSOC patient-derived xenografts (PDX) to the PARPi rucaparib was assessed, with variable dose-dependent responses observed in chemo-naive BRCA1/2-mutated PDX, and no responses in PDX lacking DNA repair pathway defects. Among BRCA1-methylated PDX, silencing of all BRCA1 copies predicts rucaparib response, whilst heterozygous methylation is associated with resistance. Analysis of 21 BRCA1-methylated platinum-sensitive recurrent HGSOC (ARIEL2 Part 1 trial) confirmed that homozygous or hemizygous BRCA1 methylation predicts rucaparib clinical response, and that methylation loss can occur after exposure to chemotherapy. Accordingly, quantitative BRCA1 methylation analysis in a pre-treatment biopsy could allow identification of patients most likely to benefit, and facilitate tailoring of PARPi therapy.
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Affiliation(s)
- Olga Kondrashova
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Monique Topp
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- Department of Medicine and Health Sciences, Monash University, Clayton, VIC, 3168, Australia
| | - Ksenija Nesic
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Elizabeth Lieschke
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - Gwo-Yaw Ho
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
- Royal Women's Hospital, Parkville, VIC, 3052, Australia
- Research Division, Peter MacCallum Cancer Centre, Grattan Street, Parkville, VIC, 3010, Australia
| | - Maria I Harrell
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, 98195, USA
| | - Giada V Zapparoli
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, 3084, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Alison Hadley
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Robert Holian
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- School of Medicine, University of Melbourne, Parkville, VIC, 3052, Australia
| | - Emma Boehm
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- School of Medicine, University of Melbourne, Parkville, VIC, 3052, Australia
| | - Valerie Heong
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
- Royal Women's Hospital, Parkville, VIC, 3052, Australia
| | - Elaine Sanij
- Research Division, Peter MacCallum Cancer Centre, Grattan Street, Parkville, VIC, 3010, Australia
- Department of Clinical Pathology, University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Richard B Pearson
- Research Division, Peter MacCallum Cancer Centre, Grattan Street, Parkville, VIC, 3010, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, VIC, 3010, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, 3168, Australia
| | - John J Krais
- Fox Chase Cancer Centre, Philadelphia, PA, 19111, USA
| | - Neil Johnson
- Fox Chase Cancer Centre, Philadelphia, PA, 19111, USA
| | - Orla McNally
- Royal Women's Hospital, Parkville, VIC, 3052, Australia
| | | | - Kathryn Alsop
- Research Division, Peter MacCallum Cancer Centre, Grattan Street, Parkville, VIC, 3010, Australia
| | - Karla J Hutt
- Department of Medicine and Health Sciences, Monash University, Clayton, VIC, 3168, Australia
| | - Scott H Kaufmann
- Departments of Oncology and Molecular Pharmacology, Mayo Clinic, Rochester, MN, 55905, USA
| | | | | | - Nadia Traficante
- Research Division, Peter MacCallum Cancer Centre, Grattan Street, Parkville, VIC, 3010, Australia
- Department of Clinical Pathology, University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Anna deFazio
- Centre for Cancer Research, The Westmead Institute for Medical Research, Sydney Medical School, The University of Sydney and Department of Gynaecological Oncology, Westmead Hospital, Sydney, NSW, 2145, Australia
| | - Iain A McNeish
- Division of Cancer, Department of Surgery and Cancer, Imperial College London, Kensington, London, SW7 2AZ, United Kingdom
| | - David D Bowtell
- Research Division, Peter MacCallum Cancer Centre, Grattan Street, Parkville, VIC, 3010, Australia
- Department of Clinical Pathology, University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Elizabeth M Swisher
- Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, 98195, USA
| | - Alexander Dobrovic
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, 3084, Australia
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, 3086, Australia
- Department of Clinical Pathology, University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Matthew J Wakefield
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
- Melbourne Bioinformatics, University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Clare L Scott
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.
- Department of Medicine and Health Sciences, Monash University, Clayton, VIC, 3168, Australia.
- Research Division, Peter MacCallum Cancer Centre, Grattan Street, Parkville, VIC, 3010, Australia.
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25
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Eetezadi S, Evans JC, Shen YT, De Souza R, Piquette-Miller M, Allen C. Ratio-Dependent Synergism of a Doxorubicin and Olaparib Combination in 2D and Spheroid Models of Ovarian Cancer. Mol Pharm 2018; 15:472-485. [DOI: 10.1021/acs.molpharmaceut.7b00843] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Sina Eetezadi
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario M5S 3M2, Canada
| | - James C. Evans
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario M5S 3M2, Canada
| | - Yen-Ting Shen
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario M5S 3M2, Canada
| | - Raquel De Souza
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario M5S 3M2, Canada
| | - Micheline Piquette-Miller
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario M5S 3M2, Canada
| | - Christine Allen
- Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario M5S 3M2, Canada
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26
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Wong DL, Stillman MJ. Capturing platinum in cisplatin: kinetic reactions with recombinant human apo-metallothionein 1a. Metallomics 2018; 10:713-721. [DOI: 10.1039/c8mt00029h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Detailed mass spectra data show the stepwise sequence of cisplatin deconstruction by apo-metallothionein.
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Affiliation(s)
- Daisy L. Wong
- Stillman Bioinorganic Group
- Department of Chemistry
- The University of Western Ontario, London
- Ontario
- Canada N6A 5B7
| | - Martin J. Stillman
- Stillman Bioinorganic Group
- Department of Chemistry
- The University of Western Ontario, London
- Ontario
- Canada N6A 5B7
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27
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Xue S, Shi L, Wu C, Wu H, Qin Y, Pan W, Hartley W, Cui M. Cadmium, lead, and arsenic contamination in paddy soils of a mining area and their exposure effects on human HEPG2 and keratinocyte cell-lines. ENVIRONMENTAL RESEARCH 2017; 156:23-30. [PMID: 28314151 DOI: 10.1016/j.envres.2017.03.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/05/2017] [Accepted: 03/10/2017] [Indexed: 06/06/2023]
Abstract
UNLABELLED A mining district in south China shows significant metal(loid) contamination in paddy fields. In the soils, average Pb, Cd and As concentrations were 460.1, 11.7 and 35.1mgkg-1 respectively, which were higher than the environmental quality standard for agricultural soils in China (GB15618-1995) and UK Clea Soil Guideline Value. The average contents of Pb, Cd and As in rice were 5.24, 1.1 and 0.7mgkg-1 respectively, which were about 25, 4.5 or 2.5 times greater than the limit values of the maximum safe contaminant concentration standard in food of China (GB 2762-2012), and about 25, 10 or 1 times greater than the limit values of FAO/WHO standard. The elevated contents of Pb, Cd and As detected in soils around the factories, indicated that their spatial distribution was influenced by anthropogenic activity, while greater concentrations of Cd in rice appeared in the northwest region of the factories, indicating that the spatial distribution of heavy metals was also affected by natural factors. As human exposure around mining districts is mainly through oral intake of food and dermal contact, the effects of these metals on the viability and MT protein of HepG2 and KERTr cells were investigated. The cell viability decreased with increasing metal concentrations. Co-exposure to heavy metals (Pb+Cd) increased the metals (Pb or Cd)-mediated MT protein induction in both human HepG2 and KERTr cells. Increased levels of MT protein will lead to greater risk of carcinogenic manifestations, and it is likely that chronic exposure to metals may increase the risk to human health. Nevertheless, when co-exposure to two or more metals occur (such as As+Pb), they may have an antagonistic effect thus reducing the toxic effects of each other. CAPSULE Metal contaminations in paddy soils and rice were influenced by anthropogenic activity; metal co-exposure induced MT protein in human cells.
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Affiliation(s)
- Shengguo Xue
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Lizheng Shi
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Chuan Wu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China.
| | - Hui Wu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Yanyan Qin
- Shenzhen Polytechnic, Shenzhen 518055, China
| | - Weisong Pan
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - William Hartley
- Crop and Environment Sciences Department, Harper Adams University, Newport, Shropshire, TF10 8NB, United Kingdom
| | - Mengqian Cui
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
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28
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Zaware N, Kisliuk R, Bastian A, Ihnat MA, Gangjee A. Synthesis and evaluation of 5-(arylthio)-9H-pyrimido[4,5-b]indole-2,4-diamines as receptor tyrosine kinase and thymidylate synthase inhibitors and as antitumor agents. Bioorg Med Chem Lett 2017; 27:1602-1607. [PMID: 28258797 PMCID: PMC5398096 DOI: 10.1016/j.bmcl.2017.02.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 02/07/2017] [Accepted: 02/08/2017] [Indexed: 02/05/2023]
Abstract
In an effort to optimize the structural requirements for combined cytostatic and cytotoxic effects in single agents, a series of 5-(arylthio)-9H-pyrimido[4,5-b]indole-2,4-diamines 3-7 were synthesized and evaluated as inhibitors of receptor tyrosine kinases (RTKs) as well as thymidylate synthase (TS). The synthesis of these compounds involved the nucleophilic displacement of the common intermediate 5-bromo/5-chloro-9H-pyrimido[4,5-b]indole-2,4-diamine with appropriate aryl thiols. A novel four step synthetic scheme to the common intermediate was developed which is more efficient relative to the previously reported six-step sequence. Biological evaluation of these compounds indicated dual activity in RTKs and human TS (hTS). In the VEGFR-2 assay, compound 5 was equipotent to the standard compound semaxanib and was better than standard TS inhibitor pemetrexed, in the hTS assay. Compounds 3, 6 and 7 were nanomolar inhibitors of hTS and were several fold better than pemetrexed.
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Affiliation(s)
- Nilesh Zaware
- Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Avenue, Pittsburgh, PA 15282, United States
| | - Roy Kisliuk
- Department of Biochemistry, Tufts University School of Medicine, Boston, MA 02111, United States
| | - Anja Bastian
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, United States
| | - Michael A Ihnat
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, United States
| | - Aleem Gangjee
- Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Avenue, Pittsburgh, PA 15282, United States.
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29
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Oommen D, Dodd NJF, Yiannakis D, Moyeed R, Jha AN. Linking genotoxicity and cytotoxicity with membrane fluidity: A comparative study in ovarian cancer cell lines following exposure to auranofin. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2016; 809:43-49. [PMID: 27692298 DOI: 10.1016/j.mrgentox.2016.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/01/2016] [Accepted: 09/03/2016] [Indexed: 11/26/2022]
Abstract
Auranofin, an organogold compound classified as an anti-rheumatic agent is under phase 2 clinical trials for re-purposing to treat recurrent epithelial ovarian cancer. We have reported earlier that Breast cancer 1, early onset (BRCA1) mutant ovarian cancer cells exhibit increased sensitivity to auranofin. BRCA1 is a DNA repair protein whose functional status is critical in the prognosis of ovarian cancer. Apart from DNA repair capability of cancer cells, membrane fluidity is also implicated in modulating resistance to chemotherapeutics. We report here that membrane fluidity influences the sensitivity of ovarian cancer cell lines, OVCAR5 and IGROV1, to auranofin. Electron spin resonance (ESR) analysis revealed a more fluidized membrane in IGROV1 compared to OVCAR5. Interestingly, IGROV1 cells were more sensitive to auranofin induced cytotoxicity than OVCAR5. In comparison to OVCAR5, IGROV1 cells also exhibited an increased number of DNA double strand breaks (DSBs) upon auranofin treatment as assessed by 53BP1 immunostaining. Furthermore, correlation analysis demonstrated a strong positive correlation (r=0.856) between membrane fluidity and auranofin sensitivity in these cell lines. Auranofin-treated IGROV1 cells also exhibited increased cellular oxidation and apoptosis. Anti-oxidant, N-acetyl cysteine (NAC) inhibited the cellular oxidation and apoptosis in auranofin-treated ovarian cancer cells suggesting reactive oxygen species (ROS) mediate the anti-cancer properties of auranofin. Overall, our study suggests that auranofin mediates its cytotoxicity via ROS production in ovarian cancer cells which correlates positively with membrane fluidity.
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Affiliation(s)
- Deepu Oommen
- School of Biological Sciences, Plymouth University, Plymouth, PL4 8AA, UK
| | - Nicholas J F Dodd
- School of Biological Sciences, Plymouth University, Plymouth, PL4 8AA, UK
| | - Dennis Yiannakis
- Plymouth Oncology Centre, Derriford Hospital, Plymouth, PL6 8DH, UK
| | - Rana Moyeed
- School of Computing, Electronics and Mathematics, Plymouth University, Plymouth, PL4 8AA, UK
| | - Awadhesh N Jha
- School of Biological Sciences, Plymouth University, Plymouth, PL4 8AA, UK.
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30
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Hernandez L, Kim MK, Lyle LT, Bunch KP, House CD, Ning F, Noonan AM, Annunziata CM. Characterization of ovarian cancer cell lines as in vivo models for preclinical studies. Gynecol Oncol 2016; 142:332-40. [PMID: 27235858 DOI: 10.1016/j.ygyno.2016.05.028] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 05/10/2016] [Accepted: 05/24/2016] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The value of cell lines for pre-clinical work lies in choosing those with similar characteristics. Selection of cell lines is typically based on patient history, histological subtype at diagnosis, mutation patterns, or signaling pathways. Although recent studies established consensus regarding molecular characteristics of ovarian cancer cell lines, data on in vivo tumorigenicity remains only sporadically available, impeding translation of in vitro work to xenograft models. METHODS We introduced 18 ovarian cancer cell lines into athymic nude mice through subcutaneous, intraperitoneal, and ovary intrabursal routes, and observed tumor development over 6weeks. We also profiled cell line gene expression and identified differentially expressed gene sets based on their ability to form tumors in the subcutaneous or intraperitoneal locations. Representative cell lines were further subjected to proteomic analyses. RESULTS Ovarian cancer cell lines showed variable ability to grow in mice when implanted subcutaneous, intraperitoneal, or intrabursal. While some cell lines grew well in both SC and IP locations, others showed a strong propensity to grow in one location only. Gene expression profiles suggested that cell lines showing preference for IP growth had gene expression patterns more similar to primary tumors. CONCLUSIONS We report the tumorigenicity of 17 human ovarian cancer cell lines and one mouse cell line in three distinct anatomical locations, and associated gene networks. Growth patterns and histopathology, linked to molecular characteristics, provide a valuable resource to the research community, and better guide the choice of cell lines for in vitro studies to translate efficiently into xenograft testing.
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Affiliation(s)
- Lidia Hernandez
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, United States
| | - Marianne K Kim
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, United States
| | - L Tiffany Lyle
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, United States
| | - Kristen P Bunch
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, United States
| | - Carrie D House
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, United States
| | - Franklin Ning
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, United States
| | - Anne M Noonan
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, United States
| | - Christina M Annunziata
- Women's Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, United States.
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31
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Chowanadisai W, Messerli SM, Miller DH, Medina JE, Hamilton JW, Messerli MA, Brodsky AS. Cisplatin Resistant Spheroids Model Clinically Relevant Survival Mechanisms in Ovarian Tumors. PLoS One 2016; 11:e0151089. [PMID: 26986722 PMCID: PMC4795743 DOI: 10.1371/journal.pone.0151089] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 02/23/2016] [Indexed: 12/31/2022] Open
Abstract
The majority of ovarian tumors eventually recur in a drug resistant form. Using cisplatin sensitive and resistant cell lines assembled into 3D spheroids we profiled gene expression and identified candidate mechanisms and biological pathways associated with cisplatin resistance. OVCAR-8 human ovarian carcinoma cells were exposed to sub-lethal concentrations of cisplatin to create a matched cisplatin-resistant cell line, OVCAR-8R. Genome-wide gene expression profiling of sensitive and resistant ovarian cancer spheroids identified 3,331 significantly differentially expressed probesets coding for 3,139 distinct protein-coding genes (Fc >2, FDR < 0.05) (S2 Table). Despite significant expression changes in some transporters including MDR1, cisplatin resistance was not associated with differences in intracellular cisplatin concentration. Cisplatin resistant cells were significantly enriched for a mesenchymal gene expression signature. OVCAR-8R resistance derived gene sets were significantly more biased to patients with shorter survival. From the most differentially expressed genes, we derived a 17-gene expression signature that identifies ovarian cancer patients with shorter overall survival in three independent datasets. We propose that the use of cisplatin resistant cell lines in 3D spheroid models is a viable approach to gain insight into resistance mechanisms relevant to ovarian tumors in patients. Our data support the emerging concept that ovarian cancers can acquire drug resistance through an epithelial-to-mesenchymal transition.
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Affiliation(s)
- Winyoo Chowanadisai
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, Oklahoma, United States of America, 74078
- Marine Biological Laboratory, Woods Hole, Massachusetts, United States of America, 02543
| | - Shanta M. Messerli
- Marine Biological Laboratory, Woods Hole, Massachusetts, United States of America, 02543
| | - Daniel H. Miller
- Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America, 02139
- Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, United States of America, 02142
| | - Jamie E. Medina
- Marine Biological Laboratory, Woods Hole, Massachusetts, United States of America, 02543
- Department of Biological Sciences, Bridgewater State University, Bridgewater, Massachusetts, United States of America, 02325
| | - Joshua W. Hamilton
- Marine Biological Laboratory, Woods Hole, Massachusetts, United States of America, 02543
- Swenson College of Science and Engineering, University of Minnesota, Duluth, Minnesota, United States of America, 55804
| | - Mark A. Messerli
- Marine Biological Laboratory, Woods Hole, Massachusetts, United States of America, 02543
- Department of Biology and Microbiology, South Dakota State University, Brookings, South Dakota, United States of America, 57007
- * E-mail: (MAM); (ASB)
| | - Alexander S. Brodsky
- Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America, 02139
- Department of Pathology and Laboratory Medicine, Rhode Island Hospital and Alpert Medical School of Brown University, Providence, Rhode Island, United States of America, 02903
- Center for Computational Molecular Biology, Brown University, Providence, Rhode Island, United States of America, 02912
- * E-mail: (MAM); (ASB)
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The cranberry flavonoids PAC DP-9 and quercetin aglycone induce cytotoxicity and cell cycle arrest and increase cisplatin sensitivity in ovarian cancer cells. Int J Oncol 2015; 46:1924-34. [PMID: 25776829 PMCID: PMC4383025 DOI: 10.3892/ijo.2015.2931] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 01/30/2015] [Indexed: 01/17/2023] Open
Abstract
Cranberry flavonoids (flavonols and flavan-3-ols), in addition to their antioxidant properties, have been shown to possess potential in vitro activity against several cancers. However, the difficulty of isolating cranberry compounds has largely limited anticancer research to crude fractions without well-defined compound composition. In this study, individual cranberry flavonoids were isolated to the highest purity achieved so far using gravity and high performance column chromatography and LC-MS characterization. MTS assay indicated differential cell viability reduction of SKOV-3 and OVCAR-8 ovarian cancer cells treated with individual cranberry flavonoids. Treatment with quercetin aglycone and PAC DP-9, which exhibited the strongest activity, induced apoptosis, led to caspase-3 activation and PARP deactivation, and increased sensitivity to cisplatin. Furthermore, immunofluorescence microscopy and western blot study revealed reduced expression and activation of epidermal growth factor receptor (EGFR) in PAC DP-9 treated SKOV-3 cells. In addition, quercetin aglycone and PAC DP-9 deactivated MAPK-ERK pathway, induced downregulation of cyclin D1, DNA-PK, phosphohistone H3 and upregulation of p21, and arrested cell cycle progression. Overall, this study demonstrates promising in vitro cytotoxic and anti-proliferative properties of two newly characterized cranberry flavonoids, quercetin aglycone and PAC DP-9, against ovarian cancer cells.
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Busschots S, O'Toole S, O'Leary JJ, Stordal B. Carboplatin and taxol resistance develops more rapidly in functional BRCA1 compared to dysfunctional BRCA1 ovarian cancer cells. Exp Cell Res 2014; 336:1-14. [PMID: 25499884 DOI: 10.1016/j.yexcr.2014.12.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 12/01/2014] [Accepted: 12/03/2014] [Indexed: 02/05/2023]
Abstract
A major risk factor for ovarian cancer is germline mutations of BRCA1/2. It has been found that (80%) of cellular models with acquired platinum or taxane resistance display an inverse resistance relationship, that is collateral sensitivity to the other agent. We used a clinically relevant comparative selection strategy to develop novel chemoresistant cell lines which aim to investigate the mechanisms of resistance that arise from different exposures of carboplatin and taxol on cells having BRCA1 function (UPN251) or dysfunction (OVCAR8). Resistance to carboplatin and taxol developed quicker and more stably in UPN251 (BRCA1-wildtype) compared to OVCAR8 (BRCA1-methylated). Alternating carboplatin and taxol treatment delayed but did not prevent resistance development when compared to single-agent administration. Interestingly, the sequence of drug exposure influenced the resistance mechanism produced. UPN251-6CALT (carboplatin first) and UPN251-6TALT (taxol first) have different profiles of cross resistance. UPN251-6CALT displays significant resistance to CuSO4 (2.3-fold, p=0.004) while UPN251-6TALT shows significant sensitivity to oxaliplatin (0.6-fold, p=0.01). P-glycoprotein is the main mechanism of taxol resistance found in the UPN251 taxane-resistant sublines. UPN251 cells increase cellular glutathione levels (3.0-fold, p=0.02) in response to carboplatin treatment. However, increased glutathione is not maintained in the carboplatin-resistant sublines. UPN251-7C and UPN251-6CALT are low-level resistant to CuSO4 suggesting alterations in copper metabolism. However, none of the UPN251 sublines have alterations in the protein expression of ATP7A or CTR1. The protein expression of BRCA1 and MRP2 is unchanged in the UPN251 sublines. The UPN251 sublines remain sensitive to parp inhibitors veliparib and CEP8983 suggesting that these agents are candidates for the treatment of platinum/taxane resistant ovarian cancer patients.
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Affiliation(s)
- Steven Busschots
- Department of Histopathology, Trinity College Dublin, Central Pathology Laboratory, St James's Hospital, Dublin 8, Ireland; Department of Obstetrics and Gynaecology, Trinity College Dublin, Trinity Centre, St James's Hospital, Dublin 8, Ireland.
| | - Sharon O'Toole
- Department of Obstetrics and Gynaecology, Trinity College Dublin, Trinity Centre, St James's Hospital, Dublin 8, Ireland.
| | - John J O'Leary
- Department of Histopathology, Trinity College Dublin, Central Pathology Laboratory, St James's Hospital, Dublin 8, Ireland; Department of Obstetrics and Gynaecology, Trinity College Dublin, Trinity Centre, St James's Hospital, Dublin 8, Ireland.
| | - Britta Stordal
- Department of Histopathology, Trinity College Dublin, Central Pathology Laboratory, St James's Hospital, Dublin 8, Ireland; Department of Natural Sciences, Hendon Campus, Middlesex University, London NW4 4BT, United Kingdom.
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McDermott M, Eustace AJ, Busschots S, Breen L, Crown J, Clynes M, O'Donovan N, Stordal B. In vitro Development of Chemotherapy and Targeted Therapy Drug-Resistant Cancer Cell Lines: A Practical Guide with Case Studies. Front Oncol 2014; 4:40. [PMID: 24639951 PMCID: PMC3944788 DOI: 10.3389/fonc.2014.00040] [Citation(s) in RCA: 182] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 02/17/2014] [Indexed: 12/18/2022] Open
Abstract
The development of a drug-resistant cell line can take from 3 to 18 months. However, little is published on the methodology of this development process. This article will discuss key decisions to be made prior to starting resistant cell line development; the choice of parent cell line, dose of selecting agent, treatment interval, and optimizing the dose of drug for the parent cell line. Clinically relevant drug-resistant cell lines are developed by mimicking the conditions cancer patients experience during chemotherapy and cell lines display between two- and eight-fold resistance compared to their parental cell line. Doses of drug administered are low, and a pulsed treatment strategy is often used where the cells recover in drug-free media. High-level laboratory models are developed with the aim of understanding potential mechanisms of resistance to chemotherapy agents. Doses of drug are higher and escalated over time. It is common to have difficulty developing stable clinically relevant drug-resistant cell lines. A comparative selection strategy of multiple cell lines or multiple chemotherapeutic agents mitigates this risk and gives insight into which agents or type of cell line develops resistance easily. Successful selection strategies from our research are presented. Pulsed-selection produced platinum or taxane-resistant large cell lung cancer (H1299 and H460) and temozolomide-resistant melanoma (Malme-3M and HT144) cell lines. Continuous selection produced a lapatinib-resistant breast cancer cell line (HCC1954). Techniques for maintaining drug-resistant cell lines are outlined including; maintaining cells with chemotherapy, pulse treating with chemotherapy, or returning to master drug-resistant stocks. The heterogeneity of drug-resistant models produced from the same parent cell line with the same chemotherapy agent is explored with reference to P-glycoprotein. Heterogeneity in drug-resistant cell lines reflects the heterogeneity that can occur in clinical drug resistance.
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Affiliation(s)
- Martina McDermott
- National Institute for Cellular Biotechnology, Dublin City University , Dublin , Ireland ; Department of Drug Discovery and Biomedical Sciences, South Carolina College of Pharmacy, University of South Carolina , Columbia, SC , USA
| | - Alex J Eustace
- National Institute for Cellular Biotechnology, Dublin City University , Dublin , Ireland ; Department of Medical Oncology, Beaumont Hospital, Royal College of Surgeons in Ireland , Dublin , Ireland
| | - Steven Busschots
- Department of Histopathology, St James' Hospital, Trinity College Dublin , Dublin , Ireland
| | - Laura Breen
- National Institute for Cellular Biotechnology, Dublin City University , Dublin , Ireland
| | - John Crown
- National Institute for Cellular Biotechnology, Dublin City University , Dublin , Ireland ; Department of Medical Oncology, St Vincent's University Hospital , Dublin , Ireland
| | - Martin Clynes
- National Institute for Cellular Biotechnology, Dublin City University , Dublin , Ireland
| | - Norma O'Donovan
- National Institute for Cellular Biotechnology, Dublin City University , Dublin , Ireland
| | - Britta Stordal
- National Institute for Cellular Biotechnology, Dublin City University , Dublin , Ireland ; Department of Histopathology, St James' Hospital, Trinity College Dublin , Dublin , Ireland
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Valle BL, D'Souza T, Becker KG, Wood WH, Zhang Y, Wersto RP, Morin PJ. Non-steroidal anti-inflammatory drugs decrease E2F1 expression and inhibit cell growth in ovarian cancer cells. PLoS One 2013; 8:e61836. [PMID: 23637916 PMCID: PMC3634839 DOI: 10.1371/journal.pone.0061836] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 02/25/2013] [Indexed: 11/19/2022] Open
Abstract
Epidemiological studies have shown that the regular use of non-steroidal anti-inflammatory (NSAIDs) drugs is associated with a reduced risk of various cancers. In addition, in vitro and experiments in mouse models have demonstrated that NSAIDs decrease tumor initiation and/or progression of several cancers. However, there are limited preclinical studies investigating the effects of NSAIDs in ovarian cancer. Here, we have studied the effects of two NSAIDs, diclofenac and indomethacin, in ovarian cancer cell lines and in a xenograft mouse model. Diclofenac and indomethacin treatment decreased cell growth by inducing cell cycle arrest and apoptosis. In addition, diclofenac and indomethacin reduced tumor volume in a xenograft model of ovarian cancer. To identify possible molecular pathways mediating the effects of NSAID treatment in ovarian cancer, we performed microarray analysis of ovarian cancer cells treated with indomethacin or diclofenac. Interestingly, several of the genes found downregulated following diclofenac or indomethacin treatment are transcriptional target genes of E2F1. E2F1 was downregulated at the mRNA and protein level upon treatment with diclofenac and indomethacin, and overexpression of E2F1 rescued cells from the growth inhibitory effects of diclofenac and indomethacin. In conclusion, NSAIDs diclofenac and indomethacin exert an anti-proliferative effect in ovarian cancer in vitro and in vivo and the effects of NSAIDs may be mediated, in part, by downregulation of E2F1.
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Affiliation(s)
- Blanca L. Valle
- Laboratory of Molecular Biology and Immunology, National Institute on Aging, Baltimore, Maryland, United States of America
| | - Theresa D'Souza
- Laboratory of Molecular Biology and Immunology, National Institute on Aging, Baltimore, Maryland, United States of America
| | - Kevin G. Becker
- Research Resources Branch, National Institute on Aging, NIH, Baltimore, Maryland, United States of America
| | - William H. Wood
- Research Resources Branch, National Institute on Aging, NIH, Baltimore, Maryland, United States of America
| | - Yongqing Zhang
- Research Resources Branch, National Institute on Aging, NIH, Baltimore, Maryland, United States of America
| | - Robert P. Wersto
- Research Resources Branch, National Institute on Aging, NIH, Baltimore, Maryland, United States of America
| | - Patrice J. Morin
- Laboratory of Molecular Biology and Immunology, National Institute on Aging, Baltimore, Maryland, United States of America
- Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
- * E-mail:
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Sogawa N, Hirai K, Sogawa C, Ohyama K, Miyazaki I, Tsukamoto G, Asanuma M, Sasaki A, Kitayama S. Protective effect of cepharanthin on cisplatin-induced renal toxicity through metallothionein expression. Life Sci 2013; 92:727-32. [DOI: 10.1016/j.lfs.2013.01.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 12/29/2012] [Accepted: 01/28/2013] [Indexed: 10/27/2022]
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Stordal B, Timms K, Farrelly A, Gallagher D, Busschots S, Renaud M, Thery J, Williams D, Potter J, Tran T, Korpanty G, Cremona M, Carey M, Li J, Li Y, Aslan O, O'Leary JJ, Mills GB, Hennessy BT. BRCA1/2 mutation analysis in 41 ovarian cell lines reveals only one functionally deleterious BRCA1 mutation. Mol Oncol 2013; 7:567-79. [PMID: 23415752 DOI: 10.1016/j.molonc.2012.12.007] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 12/19/2012] [Accepted: 12/20/2012] [Indexed: 10/27/2022] Open
Abstract
Mutations in BRCA1/2 increase the risk of developing breast and ovarian cancer. Germline BRCA1/2 mutations occur in 8.6-13.7% of unselected epithelial ovarian cancers, somatic mutations are also frequent. BRCA1/2 mutated or dysfunctional cells may be sensitive to PARP inhibition by synthetic lethality. The aim of this study is to comprehensively characterise the BRCA1/2 status of a large panel of ovarian cancer cell lines available to the research community to assist in biomarker studies of novel drugs and in particular of PARP inhibitors. The BRCA1/2 genes were sequenced in 41 ovarian cell lines, mRNA expression of BRCA1/2 and gene methylation status of BRCA1 was also examined. The cytotoxicity of PARP inhibitors olaparib and veliparib was examined in 20 cell lines. The cell line SNU-251 has a deleterious BRCA1 mutation at 5564G > A, and is the only deleterious BRCA1/2 mutant in the panel. Two cell lines (UPN-251 and PEO1) had deleterious mutations as well as additional reversion mutations that restored the protein functionality. Heterozygous mutations in BRCA1/2 were relatively common, found in 14.6% of cell lines. BRCA1 was methylated in two cell lines (OVCAR8, A1847) and there was a corresponding decrease in gene expression. The BRCA1 methylated cell lines were more sensitive to PARP inhibition than wild-type cells. The SNU-251 deleterious mutant was more sensitive to PARP inhibition, but only in a long-term exposure to correct for its slow growth rate. Cell lines derived from metastatic disease are significantly more resistant to veliparib (2.0 fold p = 0.03) compared to those derived from primary tumours. Resistance to olaparib and veliparib was correlated Pearsons-R 0.5393, p = 0.0311. The incidence of BRCA1/2 deleterious mutations 1/41 cell lines derived from 33 different patients (3.0%) is much lower than the population incidence. The reversion mutations and high frequency of heterozygous mutations suggest that there is a selective pressure against BRCA1/2 in cell culture similar to the selective pressure seen in the clinic after treatment with chemotherapy. PARP inhibitors may be useful in patients with BRCA1 deleterious mutations or gene methylation.
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Affiliation(s)
- Britta Stordal
- Department of Histopathology, St James' Hospital and Trinity College Dublin, Dublin 8, Ireland.
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Gangjee A, Namjoshi OA, Yu J, Ihnat MA, Thorpe JE, Bailey-Downs LC. N2-Trimethylacetyl substituted and unsubstituted-N4-phenylsubstituted-6-(2-pyridin-2-ylethyl)-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamines: design, cellular receptor tyrosine kinase inhibitory activities and in vivo evaluation as antiangiogenic, antimetastatic and antitumor agents. Bioorg Med Chem 2013; 21:1312-23. [PMID: 23375090 DOI: 10.1016/j.bmc.2012.12.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 12/06/2012] [Accepted: 12/14/2012] [Indexed: 01/07/2023]
Abstract
Six novel N(4)-phenylsubstituted-6-(2-pyridin-2-ylethyl)-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamines and their N(2)-trimethylacetyl substituted analogs were synthesized as receptor tyrosine kinase (RTK) inhibitors. A microwave-mediated Sonogashira reaction was used as a key step for the synthesis of these compounds. Biological evaluation, in whole cell assays, showed that some analogs had remarkable inhibitory activity against a variety of RTKs and in particular cytotoxic activity against A431 tumor cells in culture. The inhibitory data against RTKs in this study demonstrated that variation of the 4-anilino substituents of these analogs dictates both potency and specificity of inhibitory activity against various RTKs. The study also supported the hypothesis that interaction of substituents on the 2-amino group with hydrophobic site-II provides an increase in potency. Compound 8 of this series was selected for evaluation in vivo in a B16-F10 syngeneic mouse tumor model and exhibited significant reduction in tumor growth rate, in tumor vascular density and in metastases to the lung compared to the control.
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Affiliation(s)
- Aleem Gangjee
- Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, USA.
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Bezler M, Hengstler JG, Ullrich A. Inhibition of doxorubicin-induced HER3-PI3K-AKT signalling enhances apoptosis of ovarian cancer cells. Mol Oncol 2012; 6:516-29. [PMID: 22841590 DOI: 10.1016/j.molonc.2012.07.001] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Revised: 07/10/2012] [Accepted: 07/11/2012] [Indexed: 12/27/2022] Open
Abstract
Resistance to chemotherapy is a serious problem for the successful treatment of ovarian cancer patients but signalling pathways that contribute to this chemoinsensitivity are largely unknown. We demonstrate that the chemotherapeutic drug doxorubicin induces activation of the HER3-PI3K-AKT signalling cascade in ovarian cancer cells. We further show that the induction of this anti-apoptotic signalling pathway is based on upregulated expression of HER3 ligands, their shedding by the metalloprotease ADAM17, and is dependent on the HER2 receptor. The doxorubicin-mediated activation of this important survival cascade can be blocked by the kinase inhibitors lapatinib or erlotinib as well as by the therapeutic monoclonal antibody trastuzumab. Inhibition of the doxorubicin-induced activation of HER3-PI3K-AKT signalling significantly increased apoptosis of ovarian cancer cells. Besides doxorubicin, treatment of cells with cisplatin resulted in activation of the HER3 receptor whereas other chemotherapeutics did not show this effect. The increase in HER3 phosphorylation was detected in well-established ovarian cancer cell lines which originate from patients previously treated with these chemotherapeutic drugs. Based on these results, we postulate that activation of the HER3-PI3K-AKT cascade represents a major mechanism of chemoresistance in ovarian cancer.
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Affiliation(s)
- Martin Bezler
- Max-Planck-Institute of Biochemistry, Department of Molecular Biology, Martinsried, Germany
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Gangjee A, Zaware N, Raghavan S, Yang J, Thorpe JE, Ihnat MA. N⁴-(3-Bromophenyl)-7-(substituted benzyl) pyrrolo[2,3-d]pyrimidines as potent multiple receptor tyrosine kinase inhibitors: design, synthesis, and in vivo evaluation. Bioorg Med Chem 2012; 20:2444-54. [PMID: 22370340 PMCID: PMC3310894 DOI: 10.1016/j.bmc.2012.01.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 01/11/2012] [Accepted: 01/19/2012] [Indexed: 12/18/2022]
Abstract
With the goal of developing multitargeted receptor tyrosine kinase inhibitors that display potent inhibition against PDGFRβ and VEGFR-2 we designed and synthesized eleven N(4)-(3-bromophenyl)-7-(substitutedbenzyl) pyrrolo[2,3-d]pyrimidines 9a-19a. These compounds were obtained from the key intermediate N(4)-(3-bromophenyl)-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamine 29. Various arylmethyl groups were regiospecifically attached at the N7 of 29 via sodium hydride induced alkylation with substituted arylmethyl halides. Compounds 11a and 19a were potent dual inhibitors of PDGFRβ and VEGFR-2. In a COLO-205, in vivo tumor mouse model 11a demonstrated inhibition of tumor growth, metastasis, and tumor angiogenesis that was better than or comparable to the standard compound TSU-68 (SU6668, 8).
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Affiliation(s)
- Aleem Gangjee
- Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Avenue, Pittsburgh, PA 15282, USA.
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Cmarik JL, Troxler JA, Hanson CA, Zhang X, Ruscetti SK. The human lung adenocarcinoma cell line EKVX produces an infectious xenotropic murine leukemia virus. Viruses 2011; 3:2442-61. [PMID: 22355448 PMCID: PMC3280514 DOI: 10.3390/v3122442] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 11/22/2011] [Accepted: 12/09/2011] [Indexed: 01/07/2023] Open
Abstract
The cell lines of the NCI-60 panel represent different cancer types and have been widely utilized for drug screening and molecular target identification. Screening these cell lines for envelope proteins or gene sequences related to xenotropic murine leukemia viruses (X-MLVs) revealed that one cell line, EKVX, was a candidate for production of an infectious gammaretrovirus. The presence of a retrovirus infectious to human cells was confirmed by the cell-free transmission of infection to the human prostate cancer cell line LNCaP. Amplification and sequencing of additional proviral sequences from EKVX confirmed a high degree of similarity to X-MLV. The cell line EKVX was established following passage of the original tumor cells through nude mice, providing a possible source of the X-MLV found in the EKVX cells.
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Affiliation(s)
- Joan L Cmarik
- Laboratory of Cancer Prevention, National Cancer Institute-Frederick, Frederick, MD 21702, USA.
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Weberpals JI, O'Brien AM, Niknejad N, Garbuio KD, Clark-Knowles KV, Dimitroulakos J. The effect of the histone deacetylase inhibitor M344 on BRCA1 expression in breast and ovarian cancer cells. Cancer Cell Int 2011; 11:29. [PMID: 21854619 PMCID: PMC3175148 DOI: 10.1186/1475-2867-11-29] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Accepted: 08/19/2011] [Indexed: 01/27/2023] Open
Abstract
Background The inhibition of Breast Cancer 1 (BRCA1) expression sensitizes breast and ovarian cancer cells to platinum chemotherapy. However, therapeutically relevant agents that target BRCA1 expression have not been identified. Our recent report suggested the potential of the histone deacetylase (HDAC) inhibitor, M344, to inhibit BRCA1 expression. In this study, we further evaluated the effect of M344 on BRCA1 mRNA and protein expression, as well as its effect on cisplatin-induced cytotoxicity in various breast (MCF7, T-47D and HCC1937) and ovarian (A2780s, A2780cp and OVCAR-4) cancer cell lines. Results With the addition of M344, the platinum-sensitive breast and ovarian cancer cell lines that displayed relatively high BRCA1 protein levels demonstrated significant potentiation of cisplatin cytotoxicity in association with a reduction of BRCA1 protein. The cisplatin-resistant cell lines, T-47D and A2780s, elicited increased cytotoxicity of cisplatin with M344 and down regulation of BRCA1 protein levels. A2780s cells subjected to combination platinum and M344 treatment, demonstrated increased DNA damage as assessed by the presence of phosphorylated H2A.X foci in comparison to either treatment alone. Using Chromatin Immunoprecipitation, A2780s and MCF7 cells exposed to M344 alone and in combination with cisplatin, did not demonstrate enhanced acetylated Histone 4 at the BRCA1 promoter, suggesting an indirect effect on this promoter. Conclusions The enhanced sensitivity of HDAC inhibition to platinum may be mediated through a BRCA1-dependent mechanism in breast and ovarian cancer cells. The findings of this study may be important in the future design of clinical trials involving HDAC inhibitors using BRCA1 as a tumour biomarker.
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Affiliation(s)
- Johanne I Weberpals
- Division of Gynaecologic Oncology, The Ottawa Hospital, 501 Smyth Road, Ottawa, K1H 8L6, Canada.
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Splenic marginal zone lymphoma with VH1-02 gene rearrangement expresses poly- and self-reactive antibodies with similar reactivity. Blood 2011; 118:3331-9. [PMID: 21725051 DOI: 10.1182/blood-2011-03-341651] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
One-third of all splenic marginal zone lymphomas (SMZL) use the IgH VH1-02 gene. These cases are usually not associated with hepatitis C virus infection. Of interest, the rearranged VH1-02 genes display similar complementarity determining regions 3, a finding confirmed by our study. The latter suggests that these SMZL may produce antibodies with similar reactivity. We produced recombinant antibodies from 5 SMZL cases with VH1-02 gene rearrangement to study the binding reactivity of these antibodies. Surprisingly, the recombinant antibodies demonstrated poly- and self-reactivity as demonstrated by their reactivity with nuclear, cytoplasmic, as well as membranous antigens expressed by human cells and by reactivity with human serum. This polyreactivity was specific as demonstrated by ELISA. The antibodies did not react with proteins on the cell surface that are induced by apoptosis as shown for antibodies produced by chronic lymphatic leukemia with VH1-02 gene rearrangement. The results indicate that a common subset of SMZL arises from polyreactive B cells, a subset of marginal zone B cells that are important in the immunologic defense against infection.
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Mullerian inhibiting substance preferentially inhibits stem/progenitors in human ovarian cancer cell lines compared with chemotherapeutics. Proc Natl Acad Sci U S A 2010; 107:18874-9. [PMID: 20952655 DOI: 10.1073/pnas.1012667107] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cancer stem cells are proposed to be tumor-initiating cells capable of tumorigenesis, recurrence, metastasis, and drug resistance, and, like somatic stem cells, are thought to be capable of unlimited self-renewal and, when stimulated, proliferation and differentiation. Here we select cells by expression of a panel of markers to enrich for a population with stem cell-like characteristics. A panel of eight was initially selected from 95 human cell surface antigens as each was shared among human ovarian primary cancers, ovarian cancer cell lines, and normal fimbria. A total of 150 combinations of markers were reduced to a panel of three--CD44, CD24, and Epcam--which selected, in three ovarian cancer cell lines, those cells which best formed colonies. Cells expressing CD44, CD24, and Epcam exhibited stem cell characteristics of shorter tumor-free intervals in vivo after limiting dilution, and enhanced migration in invasion assays in vitro. Also, doxorubicin, cisplatin, and paclitaxel increased this enriched population which, conversely, was significantly inhibited by Müllerian inhibiting substance (MIS) or the MIS mimetic SP600125. These findings demonstrate that flow cytometry can be used to detect a population which shows differential drug sensitivity, and imply that treatment of patients can be individualized to target both stem/progenitor cell enriched and nonenriched subpopulations. The findings also suggest that this population, amenable to isolation by flow cytometry, can be used to screen for novel treatment paradigms, including biologic agents such as MIS, which will improve outcomes for patients with ovarian cancer.
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Gangjee A, Namjoshi OA, Ihnat MA, Buchanan A. The contribution of a 2-amino group on receptor tyrosine kinase inhibition and antiangiogenic activity in 4-anilinosubstituted pyrrolo[2,3-d]pyrimidines. Bioorg Med Chem Lett 2010; 20:3177-81. [PMID: 20403693 PMCID: PMC2866134 DOI: 10.1016/j.bmcl.2010.03.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2009] [Revised: 03/12/2010] [Accepted: 03/12/2010] [Indexed: 10/19/2022]
Abstract
Comparison between a series of pyrrolo[2,3-d]pyrimidines with and without the 2-amino group is presented in order to determine the validity of our hypothesis that inclusion of this group improves potency against receptor tyrosine kinases (RTK). The 2-amino analogs were better against epidermal growth factor receptor (EGFR) and platelet derived growth factor-beta (PDGFR-beta) in whole cell inhibition assays and in the A431 cytotoxicity assay compared to the 2-desamino analogs. However, the 2-desamino analogs were more potent inhibitors against vascular endothelial growth factor-2 (VEGFR-2) than the corresponding 2-amino compounds. In addition, none of the 2-desamino compounds exhibited better anti-angiogenic activity in the chorioallantoic membrane (CAM) assay as compared to the standard and were only micromolar inhibitors. This study validates our original hypothesis that the inclusion of a 2-amino group in pyrrolo[2,3-d]pyrimidines improves multiple RTK inhibition and antiangiogenic activity.
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Affiliation(s)
- Aleem Gangjee
- Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, USA.
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Noel EE, Yeste-Velasco M, Mao X, Perry J, Kudahetti SC, Li NF, Sharp S, Chaplin T, Xue L, McIntyre A, Shan L, Powles T, Oliver RTD, Young BD, Shipley J, Berney DM, Joel SP, Lu YJ. The association of CCND1 overexpression and cisplatin resistance in testicular germ cell tumors and other cancers. THE AMERICAN JOURNAL OF PATHOLOGY 2010; 176:2607-15. [PMID: 20395447 DOI: 10.2353/ajpath.2010.090780] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Development of chemoresistance limits the clinical efficiency of platinum-based therapy. Although many resistance mechanisms have been demonstrated, genetic/molecular alterations responsible for drug resistance in the majority of clinical cases have not been identified. We analyzed three pairs of testicular germ cell tumor cell lines using Affymetrix expression microarrays and revealed a limited number of differentially expressed genes across the cell lines when comparing the parental and resistant cells. Among them, CCND1 was the most significantly differentially expressed gene. Analysis of testicular germ cell tumor clinical samples by quantitative reverse transcription PCR analysis revealed that overall expression of CCND1 was significantly higher in resistant cases compared with sensitive samples (P < 0.0001). We also found that CCND1 was dramatically overexpressed both in induced and intrinsically resistant samples of ovarian and prostate cancer. Finally combined CCND1 knockdown using small-interfering RNA and cisplatin treatment inhibited cell growth in vitro significantly more effectively than any of these single treatments. Therefore, deregulation of CCND1 may be a major cause of cisplatin resistance in testicular germ cell tumors and may also be implicated in ovarian and prostate cancers. CCND1 could be potentially used as a marker for treatment stratification and as a molecular target to improve the treatment of platinum-resistant tumors.
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Affiliation(s)
- Elodie E Noel
- Medical Oncology Centre, Cancer Institute, Barts and London School of Medicine and Dentistry, Queen Mary, University of London, Charterhouse Square, London EC1M 6BQ, UK
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47
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Houshdaran S, Hawley S, Palmer C, Campan M, Olsen MN, Ventura AP, Knudsen BS, Drescher CW, Urban ND, Brown PO, Laird PW. DNA methylation profiles of ovarian epithelial carcinoma tumors and cell lines. PLoS One 2010; 5:e9359. [PMID: 20179752 PMCID: PMC2825254 DOI: 10.1371/journal.pone.0009359] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2009] [Accepted: 10/26/2009] [Indexed: 12/31/2022] Open
Abstract
Background Epithelial ovarian carcinoma is a significant cause of cancer mortality in women worldwide and in the United States. Epithelial ovarian cancer comprises several histological subtypes, each with distinct clinical and molecular characteristics. The natural history of this heterogeneous disease, including the cell types of origin, is poorly understood. This study applied recently developed methods for high-throughput DNA methylation profiling to characterize ovarian cancer cell lines and tumors, including representatives of three major histologies. Methodology/Principal Findings We obtained DNA methylation profiles of 1,505 CpG sites (808 genes) in 27 primary epithelial ovarian tumors and 15 ovarian cancer cell lines. We found that the DNA methylation profiles of ovarian cancer cell lines were markedly different from those of primary ovarian tumors. Aggregate DNA methylation levels of the assayed CpG sites tended to be higher in ovarian cancer cell lines relative to ovarian tumors. Within the primary tumors, those of the same histological type were more alike in their methylation profiles than those of different subtypes. Supervised analyses identified 90 CpG sites (68 genes) that exhibited ‘subtype-specific’ DNA methylation patterns (FDR<1%) among the tumors. In ovarian cancer cell lines, we estimated that for at least 27% of analyzed autosomal CpG sites, increases in methylation were accompanied by decreases in transcription of the associated gene. Significance The significant difference in DNA methylation profiles between ovarian cancer cell lines and tumors underscores the need to be cautious in using cell lines as tumor models for molecular studies of ovarian cancer and other cancers. Similarly, the distinct methylation profiles of the different histological types of ovarian tumors reinforces the need to treat the different histologies of ovarian cancer as different diseases, both clinically and in biomarker studies. These data provide a useful resource for future studies, including those of potential tumor progenitor cells, which may help illuminate the etiology and natural history of these cancers.
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Affiliation(s)
- Sahar Houshdaran
- Department of Biochemistry and Molecular Biology, University of Southern California, Los Angeles, California, United States of America
| | - Sarah Hawley
- Canary Foundation, Palo Alto, California, United States of America
| | - Chana Palmer
- Canary Foundation, Palo Alto, California, United States of America
| | - Mihaela Campan
- Department of Biochemistry and Molecular Biology, University of Southern California, Los Angeles, California, United States of America
- Department of Surgery, University of Southern California, Los Angeles, California, United States of America
| | - Mari N. Olsen
- Department of Biochemistry, Stanford University, Stanford, California, United States of America
| | - Aviva P. Ventura
- Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Beatrice S. Knudsen
- Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Charles W. Drescher
- Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Nicole D. Urban
- Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Patrick O. Brown
- Department of Biochemistry, Stanford University, Stanford, California, United States of America
| | - Peter W. Laird
- Department of Biochemistry and Molecular Biology, University of Southern California, Los Angeles, California, United States of America
- Department of Surgery, University of Southern California, Los Angeles, California, United States of America
- University of Southern California Epigenome Center, University of Southern California, Los Angeles, California, United States of America
- * E-mail:
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48
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Gangjee A, Li W, Lin L, Zeng Y, Ihnat M, Warnke LA, Green DW, Cody V, Pace J, Queener SF. Design, synthesis, and X-ray crystal structures of 2,4-diaminofuro[2,3-d]pyrimidines as multireceptor tyrosine kinase and dihydrofolate reductase inhibitors. Bioorg Med Chem 2009; 17:7324-36. [PMID: 19748785 PMCID: PMC2779540 DOI: 10.1016/j.bmc.2009.08.044] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Revised: 08/17/2009] [Accepted: 08/18/2009] [Indexed: 11/24/2022]
Abstract
To optimize dual receptor tyrosine kinase (RTK) and dihydrofolate reductase (DHFR) inhibition, the E- and Z-isomers of 5-[2-(2-methoxyphenyl)prop-1-en-1-yl]furo[2,3-d]pyrimidine-2,4-diamines (1a and 1b) were separated by HPLC and the X-ray crystal structures (2.0 and 1.4A, respectively) with mouse DHFR and NADPH as well as 1b with human DHFR (1.5A) were determined. The E- and Z-isomers adopt different binding modes when bound to mouse DHFR. A series of 2,4-diaminofuro[2,3-d]pyrimidines 2-13 were designed and synthesized using the X-ray crystal structures of 1a and 1b with DHFR to increase their DHFR inhibitory activity. Wittig reactions of appropriate 2-methoxyphenyl ketones with 2,4-diamino-6-chloromethyl furo[2,3-d]pyrimidine afforded the C8-C9 unsaturated compounds 2-7 and catalytic reduction gave the saturated 8-13. Homologation of the C9-methyl analog maintains DHFR inhibitory activity. In addition, inhibition of EGFR and PDGFR-beta were discovered for saturated C9-homologated analogs 9 and 10 that were absent in the saturated C9-methyl analogs.
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Affiliation(s)
- Aleem Gangjee
- Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Avenue, Pittsburgh, PA 15282, USA.
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49
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Affiliation(s)
- R J Schilder
- Department of Medical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111
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50
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Eckstein N, Servan K, Hildebrandt B, Pölitz A, von Jonquières G, Wolf-Kümmeth S, Napierski I, Hamacher A, Kassack MU, Budczies J, Beier M, Dietel M, Royer-Pokora B, Denkert C, Royer HD. Hyperactivation of the insulin-like growth factor receptor I signaling pathway is an essential event for cisplatin resistance of ovarian cancer cells. Cancer Res 2009; 69:2996-3003. [PMID: 19318572 DOI: 10.1158/0008-5472.can-08-3153] [Citation(s) in RCA: 134] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Platinum plays a central role in the therapy of ovarian cancer, and the emergence of platinum resistance is a major obstacle for clinical management of the disease. We treated A2780 ovarian cancer cells by weekly cycles of cisplatin over a period of 6 months and unveiled that enhanced insulin-like growth factor I receptor (IGF-IR) expression and autocrine IGF-I are associated with hyperactivation of the IGF-IR and phosphatidylinositol-3-OH kinase (PI3K) pathways in cisplatin-resistant cells. IGF-IR expression levels increased during treatment cycles and correlated with cisplatin resistance. Purified IGF-I induced cisplatin resistance in diverse ovarian cancer cell lines, and small molecule inhibitors proved that IGF-IR and PI3K are essential for cisplatin resistance. Similar results were obtained with BG-1 ovarian cancer cells. Cytogenetic and array comparative genomic hybridization analyses revealed selection and de novo formation of chromosomal alterations during resistance development. An analysis of gene expression profiles of primary ovarian carcinomas identified the regulatory subunit PIK3R2 of PI3-kinase as a significant negative prognosis factor for ovarian cancer. We conclude that targeting the IGF-IR and the PI3K pathways is a promising new strategy to treat cisplatin-resistant ovarian carcinomas.
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Affiliation(s)
- Niels Eckstein
- Center of Advanced European Studies and Research (caesar), Bonn, Germany
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