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Ye BJ, Li DF, Li XY, Hao JL, Liu DJ, Yu H, Zhang CD. Methylation synthetic lethality: Exploiting selective drug targets for cancer therapy. Cancer Lett 2024; 597:217010. [PMID: 38849016 DOI: 10.1016/j.canlet.2024.217010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 05/26/2024] [Accepted: 05/30/2024] [Indexed: 06/09/2024]
Abstract
In cancer, synthetic lethality refers to the drug-induced inactivation of one gene and the inhibition of another in cancer cells by a drug, resulting in the death of only cancer cells; however, this effect is not present in normal cells, leading to targeted killing of cancer cells. Recent intensive epigenetic research has revealed that aberrant epigenetic changes are more frequently observed than gene mutations in certain cancers. Recently, numerous studies have reported various methylation synthetic lethal combinations involving DNA damage repair genes, metabolic pathway genes, and paralogs with significant results in cellular models, some of which have already entered clinical trials with promising results. This review systematically introduces the advantages of methylation synthetic lethality and describes the lethal mechanisms of methylation synthetic lethal combinations that have recently demonstrated success in cellular models. Furthermore, we discuss the future opportunities and challenges of methylation synthetic lethality in targeted anticancer therapies.
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Affiliation(s)
- Bing-Jie Ye
- Clinical Medicine, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Di-Fei Li
- Clinical Medicine, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Xin-Yun Li
- Clinical Medicine, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Jia-Lin Hao
- Central Laboratory, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Di-Jie Liu
- Central Laboratory, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Hang Yu
- Department of Surgical Oncology, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Chun-Dong Zhang
- Central Laboratory, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China; Department of Surgical Oncology, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China.
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Colombo PE, Taoum C, Fabbro M, Quesada S, Rouanet P, Ray-Coquard I. Impact of molecular testing on the surgical management of advanced epithelial ovarian cancer. Crit Rev Oncol Hematol 2024; 202:104469. [PMID: 39111459 DOI: 10.1016/j.critrevonc.2024.104469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 08/01/2024] [Accepted: 08/02/2024] [Indexed: 08/18/2024] Open
Abstract
Ovarian carcinoma remains the most lethal gynaecologic malignancy. Half of all high-grade serous ovarian cancers (HGSOCs) have a homologous recombination deficiency (HRD) with regard to the repair of double-strand DNA breaks and are candidate to receive maintenance treatment with PARP inhibitors. While a wealth of literature exists regarding the therapeutic guidance of patients from a medical standpoint, the influence of the HRD status on the surgical outlook has been comparatively limited. In this review, the clinical and biological features of advanced ovarian cancers with BRCA1/2 mutation and/or HRD status are considered with particular reference to their impact on the surgical management and on the medico-surgical sequence. The modification of the surgical indications according to the results of molecular testing in first-line and recurrent settings are discussed.
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Affiliation(s)
- Pierre-Emmanuel Colombo
- Department of Surgical Oncology, Montpellier Cancer Institute (Institut du Cancer de Montpellier) (ICM), Montpellier, France.
| | - Christophe Taoum
- Department of Surgical Oncology, Montpellier Cancer Institute (Institut du Cancer de Montpellier) (ICM), Montpellier, France
| | - Michel Fabbro
- Department of Medical Oncology, Montpellier Cancer Institute (Institut du Cancer de Montpellier) (ICM), Montpellier, France
| | - Stanislas Quesada
- Department of Medical Oncology, Montpellier Cancer Institute (Institut du Cancer de Montpellier) (ICM), Montpellier, France
| | - Philippe Rouanet
- Department of Surgical Oncology, Montpellier Cancer Institute (Institut du Cancer de Montpellier) (ICM), Montpellier, France
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3
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Xu K, Yu Z, Lu T, Peng W, Gong Y, Chen C. PARP1 bound to XRCC2 promotes tumor progression in colorectal cancer. Discov Oncol 2024; 15:238. [PMID: 38907095 PMCID: PMC11192709 DOI: 10.1007/s12672-024-01112-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 06/19/2024] [Indexed: 06/23/2024] Open
Abstract
BACKGROUND By complexing poly (ADP-ribose) (PAR) in reaction to broke strand, PAR polymerase1 (PARP1) acts as the key enzyme participated in DNA repair. However, recent studies suggest that unrepaired DNA breaks results in persistent PARP1 activation, which leads to a progressively reduce in hexokinase1 (HK1) activity and cell death. PARP-1 is TCF-4/β-A novel co activator of gene transactivation induced by catenin may play a role in the development of colorectal cancer. The molecular mechanism of PARP1 remains elusive. METHODS 212 colorectal cancer (CRC) patients who had the operation at our hospital were recruited. PARP1 expression was evaluated by immunohistochemistry. Stable CRC cell lines with low or high PARP1 expression were constructed. Survival analysis was computed based on PARP1 expression. The cell proliferation was tested by CCK-8 and Colony formation assay. The interaction of PARP1 and XRCC2 was detected by immunoprecipitation (IP) analysis. RESULTS Compared with matching adjacent noncancerous tissue, PARP1 was upregulated in CRC tissue which was correlated with the degree of differentiation, TNM stage, depth of invasion, metastasis, and survival. In addition, after constructing CRC stable cell lines with abnormal expression of PARP1, we found that overexpression of PARP1 promoted proliferation, and demonstrated the interaction between PARP1 and XRCC2 in CRC cells through immunoprecipitation (IP) analysis. Moreover, the inhibitor of XRCC2 can suppress the in vitro proliferation arousing by upregulation of PARP1. CONCLUSIONS PARP1 was upregulated in CRC cells and promoted cell proliferation. Furthermore, the expression status of PARP1 was significantly correlated with some clinicopathological features and 5-year survival.
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Affiliation(s)
- Kaiwu Xu
- Department of Gastrointestinal Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, People's Republic of China
| | - Zhige Yu
- Department of Gastrointestinal Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, People's Republic of China
| | - Tailiang Lu
- Department of Gastrointestinal Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, People's Republic of China
| | - Wei Peng
- Department of Gastrointestinal Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, People's Republic of China
| | - Yongqiang Gong
- Department of Gastrointestinal Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, People's Republic of China
| | - Chaowu Chen
- Department of Gastrointestinal Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, People's Republic of China.
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Luo Z, Wan Z, Ren P, Zhang B, Huang Y, West RE, Huang H, Chen Y, Nolin TD, Xie W, Wang J, Li S, Sun J. In Situ Formation of Fibronectin-Enriched Protein Corona on Epigenetic Nanocarrier for Enhanced Synthetic Lethal Therapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307940. [PMID: 38482976 PMCID: PMC11109615 DOI: 10.1002/advs.202307940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 02/15/2024] [Indexed: 05/23/2024]
Abstract
PARP inhibitors (PARPi)-based synthetic lethal therapy demonstrates limited efficacy for most cancer types that are homologous recombination (HR) proficient. To potentiate the PARPi application, a nanocarrier based on 5-azacytidine (AZA)-conjugated polymer (PAZA) for the codelivery of AZA and a PARP inhibitor, BMN673 (BMN) is developed. AZA conjugation significantly decreased the nanoparticle (NP) size and increased BMN loading. Molecular dynamics simulation and experimental validations shed mechanistic insights into the self-assembly of effective NPs. The small PAZA NPs demonstrated higher efficiency of tumor targeting and penetration than larger NPs, which is mediated by a new mechanism of active targeting that involves the recruitment of fibronectin from serum proteins following systemic administration of PAZA NPs. Furthermore, it is found that PAZA carrier sensitize the HR-proficient nonsmall cell lung cancer (NSCLC) to BMN, a combination therapy that is more effective at a lower AZA/BMN dosage. To investigate the underlying mechanism, the tumor immune microenvironment and various gene expressions by RNAseq are explored. Moreover, the BMN/PAZA combination increased the immunogenicity and synergized with PD-1 antibody in improving the overall therapeutic effect in an orthotopic model of lung cancer (LLC).
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Affiliation(s)
- Zhangyi Luo
- Center for PharmacogeneticsDepartment of Pharmaceutical ScienceUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Zhuoya Wan
- Center for PharmacogeneticsDepartment of Pharmaceutical ScienceUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Pengfei Ren
- Center for PharmacogeneticsDepartment of Pharmaceutical ScienceUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Bei Zhang
- Center for PharmacogeneticsDepartment of Pharmaceutical ScienceUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Yixian Huang
- Center for PharmacogeneticsDepartment of Pharmaceutical ScienceUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Raymond E. West
- Department of Pharmacy and TherapeuticsUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Haozhe Huang
- Center for PharmacogeneticsDepartment of Pharmaceutical ScienceUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Yuang Chen
- Center for PharmacogeneticsDepartment of Pharmaceutical ScienceUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Thomas D. Nolin
- Department of Pharmacy and TherapeuticsUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Wen Xie
- Center for PharmacogeneticsDepartment of Pharmaceutical ScienceUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Junmei Wang
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening CenterUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Song Li
- Center for PharmacogeneticsDepartment of Pharmaceutical ScienceUniversity of Pittsburgh School of PharmacyPittsburghPA15213USA
| | - Jingjing Sun
- Department of Pharmaceutical SciencesCollege of PharmacyUniversity of Nebraska Medical CenterOmahaNE68106USA
- Fred & Pamela Buffett Cancer CenterUniversity of Nebraska Medical CenterOmahaNE68106USA
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Reshkin SJ, Cardone RA, Koltai T. Genetic Signature of Human Pancreatic Cancer and Personalized Targeting. Cells 2024; 13:602. [PMID: 38607041 PMCID: PMC11011857 DOI: 10.3390/cells13070602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/27/2024] [Accepted: 03/27/2024] [Indexed: 04/13/2024] Open
Abstract
Pancreatic cancer is a highly lethal disease with a 5-year survival rate of around 11-12%. Surgery, being the treatment of choice, is only possible in 20% of symptomatic patients. The main reason is that when it becomes symptomatic, IT IS the tumor is usually locally advanced and/or has metastasized to distant organs; thus, early diagnosis is infrequent. The lack of specific early symptoms is an important cause of late diagnosis. Unfortunately, diagnostic tumor markers become positive at a late stage, and there is a lack of early-stage markers. Surgical and non-surgical cases are treated with neoadjuvant and/or adjuvant chemotherapy, and the results are usually poor. However, personalized targeted therapy directed against tumor drivers may improve this situation. Until recently, many pancreatic tumor driver genes/proteins were considered untargetable. Chemical and physical characteristics of mutated KRAS are a formidable challenge to overcome. This situation is slowly changing. For the first time, there are candidate drugs that can target the main driver gene of pancreatic cancer: KRAS. Indeed, KRAS inhibition has been clinically achieved in lung cancer and, at the pre-clinical level, in pancreatic cancer as well. This will probably change the very poor outlook for this disease. This paper reviews the genetic characteristics of sporadic and hereditary predisposition to pancreatic cancer and the possibilities of a personalized treatment according to the genetic signature.
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Affiliation(s)
- Stephan J. Reshkin
- Department of Biosciences, Biotechnologies and Environment, University of Bari “Aldo Moro”, 70125 Bari, Italy;
| | - Rosa Angela Cardone
- Department of Biosciences, Biotechnologies and Environment, University of Bari “Aldo Moro”, 70125 Bari, Italy;
| | - Tomas Koltai
- Oncomed, Via Pier Capponi 6, 50132 Florence, Italy
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Myers SH, Poppi L, Rinaldi F, Veronesi M, Ciamarone A, Previtali V, Bagnolini G, Schipani F, Ortega Martínez JA, Girotto S, Di Stefano G, Farabegoli F, Walsh N, De Franco F, Roberti M, Cavalli A. An 19F NMR fragment-based approach for the discovery and development of BRCA2-RAD51 inhibitors to pursuit synthetic lethality in combination with PARP inhibition in pancreatic cancer. Eur J Med Chem 2024; 265:116114. [PMID: 38194775 DOI: 10.1016/j.ejmech.2023.116114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/29/2023] [Accepted: 12/30/2023] [Indexed: 01/11/2024]
Abstract
The BRCA2-RAD51 interaction remains an intriguing target for cancer drug discovery due to its vital role in DNA damage repair mechanisms, which cancer cells become particularly reliant on. Moreover, RAD51 has many synthetically lethal partners, including PARP1-2, which can be exploited to induce synthetic lethality in cancer. In this study, we established a 19F-NMR-fragment based approach to identify RAD51 binders, leading to two initial hits. A subsequent SAR program identified 46 as a low micromolar inhibitor of the BRCA2-RAD51 interaction. 46 was tested in different pancreatic cancer cell lines, to evaluate its ability to inhibit the homologous recombination DNA repair pathway, mediated by BRCA2-RAD51 and trigger synthetic lethality in combination with the PARP inhibitor talazoparib, through the induction of apoptosis. Moreover, we further analyzed the 46/talazoparib combination in 3D pancreatic cancer models. Overall, 46 showed its potential as a tool to evaluate the RAD51/PARP1-2 synthetic lethality mechanism, along with providing a prospect for further inhibitors development.
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Affiliation(s)
- Samuel H Myers
- Computational and Chemical Biology, Istituto Italiano di Tecnologia, 16163, Genoa, Italy
| | - Laura Poppi
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Francesco Rinaldi
- Computational and Chemical Biology, Istituto Italiano di Tecnologia, 16163, Genoa, Italy; Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Marina Veronesi
- Structural Biophysics Facility, Istituto Italiano di Tecnologia, 16163, Genoa, Italy; D3 PharmaChemistry, Istituto Italiano di Tecnologia, 16163, Genoa, Italy
| | - Andrea Ciamarone
- Computational and Chemical Biology, Istituto Italiano di Tecnologia, 16163, Genoa, Italy
| | - Viola Previtali
- Computational and Chemical Biology, Istituto Italiano di Tecnologia, 16163, Genoa, Italy
| | - Greta Bagnolini
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Fabrizio Schipani
- Computational and Chemical Biology, Istituto Italiano di Tecnologia, 16163, Genoa, Italy
| | | | - Stefania Girotto
- Computational and Chemical Biology, Istituto Italiano di Tecnologia, 16163, Genoa, Italy; Structural Biophysics Facility, Istituto Italiano di Tecnologia, 16163, Genoa, Italy
| | - Giuseppina Di Stefano
- Department of Surgical and Medical Sciences, University of Bologna, 40126, Bologna, Italy
| | - Fulvia Farabegoli
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Naomi Walsh
- School of Biotechnology, Dublin City University, D09 NR58, Dublin, Ireland
| | | | - Marinella Roberti
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy.
| | - Andrea Cavalli
- Computational and Chemical Biology, Istituto Italiano di Tecnologia, 16163, Genoa, Italy; Swiss Federal Institute of Technology Lausanne (EPFL), Switzerland
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LaRose M, Manji GA, Bates SE. Beyond BRCA: Diagnosis and management of homologous recombination repair deficient pancreatic cancer. Semin Oncol 2024; 51:36-44. [PMID: 38171988 DOI: 10.1053/j.seminoncol.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 11/08/2023] [Indexed: 01/05/2024]
Abstract
Approximately 4%-7% of patients diagnosed with pancreatic adenocarcinoma (PDAC) are found to harbor deleterious germline mutations in BRCA1 and/or BRCA2. Loss of function of BRCA1 and/or BRCA2 results in deficiency in homologous recombination repair (HRR), a critical DNA repair pathway, and confers sensitivity to certain DNA damaging agents, including platinum chemotherapy and PARP inhibitors. The PARP inhibitor olaparib is food and drug administration (FDA) approved for use in pancreatic cancer based on the POLO trial, which found that maintenance olaparib significantly prolonged progression free survival compared to placebo among patients with germline BRCA1 or BRCA2 mutations and metastatic PDAC that had not progressed following frontline platinum-based chemotherapy. Recently, there has been considerable interest in identifying patients without BRCA inactivation whose tumors also exhibit properties of HRR deficiency and thus may be susceptible to therapies with proven benefit in cancers harboring BRCA mutations. Here, we discuss methods for identification of HRR-deficiency and review the management of HRR-deficient cancers with a focus on HRR-deficient PDAC.
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Affiliation(s)
- Meredith LaRose
- Columbia University Irving Medical Center, New York NY, USA.
| | - Gulam A Manji
- Columbia University Irving Medical Center, New York NY, USA
| | - Susan E Bates
- Columbia University Irving Medical Center, New York NY, USA
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Navran A, Al-Mamgani A, Elzinga H, Kessels R, Vens C, Tesselaar M, van den Brekel M, de Haan R, van Triest B, Verheij M. Phase I feasibility study of Olaparib in combination with loco-regional radiotherapy in head and neck squamous cell carcinoma. Clin Transl Radiat Oncol 2024; 44:100698. [PMID: 38021094 PMCID: PMC10654000 DOI: 10.1016/j.ctro.2023.100698] [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: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose PARP-inhibitors have potent radiosensitizing properties in pre-clinical models. To identify the maximum tolerated dose (MTD) of the PARP-inhibitor Olaparib in combination with radiotherapy in patients with head and neck cancer, a single institutional phase-I dose escalation trial was initiated. Patients and methods The starting dose of Olaparib was 25 mg BID, combined with radiotherapy (70 Gy in 35 fractions). The MTD was defined as the highest dose-level at which not more than 20 % of patients experience dose-limiting toxicities (DLT) or as the highest reached dose in the absence of DLT's. Results One week Olaparib-only treatment (25 mg QD) was administered to all patients prior to the start of radiotherapy. In dose-level I, Olaparib (25 mg BID) was combined with accelerated radiotherapy (70 Gy in 6 weeks). Because of DLT's in 3 of the 4 treated patients (acute tracheotomy 5 and 7 months and osteoradionecrosis 7 months after treatment), the Olaparib dose was de-escalated to 25 mg QD, and combined with conventional radiotherapy (70 Gy in 7 weeks) (dose-level II). There were no DLT's observed in 5 patients treated within dose-level II. After a median follow-up of 60 months, the 4-year LRC and OS rates were 77.8 % and 88.9 %, respectively. Conclusion Olaparib 25 mg QD combined with conventionally fractionated radiotherapy was well tolerated and identified as the MTD while severe DLT's were observed when Olaparib 25 mg BID was combined with accelerated radiation. This combination might be further explored in future Olaparib dose escalation studies in patients with locally-advanced HNSCC unfit for cisplatin-based chemoradiotherapy.
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Affiliation(s)
- Arash Navran
- Department of Radiation Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Abrahim Al-Mamgani
- Department of Radiation Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Hester Elzinga
- Department of Head and Neck Surgery, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Rob Kessels
- Department of Biomerics, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Conchita Vens
- Department of Head and Neck Surgery, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Margot Tesselaar
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Michiel van den Brekel
- Department of Head and Neck Surgery, Netherlands Cancer Institute and Department of Oral and Maxillo-Facial Surgery, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Rosemarie de Haan
- Department of Radiation Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Baukelien van Triest
- Department of Radiation Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Marcel Verheij
- Department of Radiation Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
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Oshima M, Takayama KI, Yamada Y, Kimura N, Kume H, Fujimura T, Inoue S. Identification of DNA damage response-related genes as biomarkers for castration-resistant prostate cancer. Sci Rep 2023; 13:19602. [PMID: 37950047 PMCID: PMC10638319 DOI: 10.1038/s41598-023-46651-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023] Open
Abstract
Although hormone therapy is effective for the treatment of prostate cancer (Pca), many patients develop a lethal type of Pca called castration-resistant prostate cancer (CRPC). Dysregulation of DNA damage response (DDR)-related genes leads to Pca progression. Here, we explored DDR-related signals upregulated in CRPC tissues. We analyzed the gene expression profiles in our RNA-sequence (RNA-seq) dataset containing benign prostate, primary Pca, and CRPC samples. We identified six DDR-related genes (Ribonuclease H2 Subunit A (RNASEH2A), replication factor C subunit 2 (RFC2), RFC4, DNA Ligase 1 (LIG1), DNA polymerase D1 (POLD1), and DNA polymerase E4 (POLE4)) that were upregulated in CRPC compared with Pca tissues. By analyzing public databases and validation studies, we focused on RFC2 as a new biomarker. Functional analysis demonstrated that silencing of RFC2 expression inhibited cell proliferation and induced the expression of DNA damage and apoptosis markers in CRPC model cells. Furthermore, immunohistochemical (IHC) analysis revealed that high expression of RFC2 protein correlated with poor prognosis in patients with Pca and increased expression in CRPC tissues compared with localized Pca. Thus, our study suggests that six DDR-related genes would be important for Pca progression. RFC2 could be a useful biomarker associated with poor outcomes of patients with Pca.
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Affiliation(s)
- Masashi Oshima
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute for Geriatrics and Gerontology, 35-2 Sakaecho Itabashi-ku, Tokyo, 173-0015, Japan
- Department of Urology, Jichi Medical University, Tochigi, Japan
- Department of Urology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - Ken-Ichi Takayama
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute for Geriatrics and Gerontology, 35-2 Sakaecho Itabashi-ku, Tokyo, 173-0015, Japan
| | - Yuta Yamada
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Naoki Kimura
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Haruki Kume
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | | | - Satoshi Inoue
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute for Geriatrics and Gerontology, 35-2 Sakaecho Itabashi-ku, Tokyo, 173-0015, Japan.
- Division of Systems Medicine and Gene Therapy, Saitama Medical University, Saitama, Japan.
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10
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Chatterjee P, Karn R, Isaac AE, Ray S. Unveiling the vulnerabilities of synthetic lethality in triple-negative breast cancer. Clin Transl Oncol 2023; 25:3057-3072. [PMID: 37079210 DOI: 10.1007/s12094-023-03191-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 04/04/2023] [Indexed: 04/21/2023]
Abstract
Triple-negative breast cancer (TNBC) is the most invasive molecular subtype of breast cancer (BC), accounting for about nearly 15% of all BC cases reported annually. The absence of the three major BC hormone receptors, Estrogen (ER), Progesterone (PR), and Human Epidermal Growth Factor 2 (HER2) receptor, accounts for the characteristic "Triple negative" phraseology. The absence of these marked receptors makes this cancer insensitive to classical endocrine therapeutic approaches. Hence, the available treatment options remain solemnly limited to only conventional realms of chemotherapy and radiation therapy. Moreover, these therapeutic regimes are often accompanied by numerous treatment side-effects that account for early distant metastasis, relapse, and shorter overall survival in TNBC patients. The rigorous ongoing research in the field of clinical oncology has identified certain gene-based selective tumor-targeting susceptibilities, which are known to account for the molecular fallacies and mutation-based genetic alterations that develop the progression of TNBC. One such promising approach is synthetic lethality, which identifies novel drug targets of cancer, from undruggable oncogenes or tumor-suppressor genes, which cannot be otherwise clasped by the conventional approaches of mutational analysis. Herein, a holistic scientific review is presented, to undermine the mechanisms of synthetic lethal (SL) interactions in TNBC, the epigenetic crosstalks encountered, the role of Poly (ADP-ribose) polymerase inhibitors (PARPi) in inducing SL interactions, and the limitations faced by the lethal interactors. Thus, the future predicament of synthetic lethal interactions in the advancement of modern translational TNBC research is assessed with specific emphasis on patient-specific personalized medicine.
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Affiliation(s)
| | - Rohit Karn
- School of BioSciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Arnold Emerson Isaac
- School of BioSciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Smita Ray
- Department of Botany, Bethune College, Kolkata, West Bengal, 700006, India.
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Ramesh S, Almeida SD, Hammigi S, Radhakrishna GK, Sireesha G, Panneerselvam T, Vellingiri S, Kunjiappan S, Ammunje DN, Pavadai P. A Review of PARP-1 Inhibitors: Assessing Emerging Prospects and Tailoring Therapeutic Strategies. Drug Res (Stuttg) 2023; 73:491-505. [PMID: 37890514 DOI: 10.1055/a-2181-0813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
Eukaryotic organisms contain an enzyme family called poly (ADP-ribose) polymerases (PARPs), which is responsible for the poly (ADP-ribosylation) of DNA-binding proteins. PARPs are members of the cell signaling enzyme class. PARP-1, the most common isoform of the PARP family, is responsible for more than 90% of the tasks carried out by the PARP family as a whole. A superfamily consisting of 18 PARPs has been found. In order to synthesize polymers of ADP-ribose (PAR) and nicotinamide, the DNA damage nick monitor PARP-1 requires NAD+ as a substrate. The capability of PARP-1 activation to boost the transcription of proinflammatory genes, its ability to deplete cellular energy pools, which leads to cell malfunction and necrosis, and its involvement as a component in the process of DNA repair are the three consequences of PARP-1 activation that are of particular significance in the process of developing new drugs. As a result, the pharmacological reduction of PARP-1 may result in an increase in the cytotoxicity toward cancer cells.
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Affiliation(s)
- Soundarya Ramesh
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, M S R Nagar, Bengaluru, India
| | - Shannon D Almeida
- Department of Pharmacology, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, M S R Nagar, Bengaluru, India
| | - Sameerana Hammigi
- Department of Pharmacology, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, M S R Nagar, Bengaluru, India
| | - Govardan Katta Radhakrishna
- Department of Pharmacology, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, M S R Nagar, Bengaluru, India
| | - Golla Sireesha
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, M S R Nagar, Bengaluru, India
| | - Theivendren Panneerselvam
- Department of Pharmaceutical Chemistry, Swamy Vivekanandha College of Pharmacy, Elayampalayam, Tamil Nadu, India
| | - Shangavi Vellingiri
- Department of Pharmacy Practice, Swamy Vivekananda College of Pharmacy, Elayampalayam, Tamil Nadu, India
| | - Selvaraj Kunjiappan
- Department of Biotechnology, Kalasalingam Academy of Research and Education, Krishnankoil, Tamil Nadu, India
| | - Damodar Nayak Ammunje
- Department of Pharmacology, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, M S R Nagar, Bengaluru, India
| | - Parasuraman Pavadai
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, M S R Nagar, Bengaluru, India
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12
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Manjón AG, Manzo SG, Prekovic S, Potgeter L, van Schaik T, Liu NQ, Flach K, Peric-Hupkes D, Joosten S, Teunissen H, Friskes A, Ilic M, Hintzen D, Franceschini-Santos VH, Zwart W, de Wit E, van Steensel B, Medema RH. Perturbations in 3D genome organization can promote acquired drug resistance. Cell Rep 2023; 42:113124. [PMID: 37733591 DOI: 10.1016/j.celrep.2023.113124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 08/05/2023] [Accepted: 08/25/2023] [Indexed: 09/23/2023] Open
Abstract
Acquired drug resistance is a major problem in the treatment of cancer. hTERT-immortalized, untransformed RPE-1 cells can acquire resistance to Taxol by derepressing the ABCB1 gene, encoding for the multidrug transporter P-gP. Here, we investigate how the ABCB1 gene is derepressed. ABCB1 activation is associated with reduced H3K9 trimethylation, increased H3K27 acetylation, and ABCB1 displacement from the nuclear lamina. While altering DNA methylation and H3K27 methylation had no major impact on ABCB1 expression, nor did it promote resistance, disrupting the nuclear lamina component Lamin B Receptor did promote the acquisition of a Taxol-resistant phenotype in a subset of cells. CRISPRa-mediated gene activation supported the notion that lamina dissociation influences ABCB1 derepression. We propose a model in which nuclear lamina dissociation of a repressed gene allows for its activation, implying that deregulation of the 3D genome topology could play an important role in tumor evolution and the acquisition of drug resistance.
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Affiliation(s)
- Anna G Manjón
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Stefano Giustino Manzo
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Gene Regulation, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133 Milan, Italy
| | - Stefan Prekovic
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Oncogenomics, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Center for Molecular Medicine, University Medical Center Utrecht and Utrecht University, 3584 CX Utrecht, the Netherlands
| | - Leon Potgeter
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Tom van Schaik
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Gene Regulation, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Ning Qing Liu
- Division of Gene Regulation, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Department of Hematology, Erasmus Medical Center (MC) Cancer Institute, Rotterdam, the Netherlands
| | - Koen Flach
- Division of Gene Regulation, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Daniel Peric-Hupkes
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Gene Regulation, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Stacey Joosten
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Oncogenomics, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Hans Teunissen
- Division of Gene Regulation, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Anoek Friskes
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Mila Ilic
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Dorine Hintzen
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Vinícius H Franceschini-Santos
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Gene Regulation, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Wilbert Zwart
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Oncogenomics, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Elzo de Wit
- Division of Gene Regulation, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands
| | - Bas van Steensel
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Gene Regulation, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands.
| | - René H Medema
- Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands; Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, the Netherlands.
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13
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Pook D, Geynisman DM, Carles J, de Braud F, Joshua AM, Pérez-Gracia JL, Llácer Pérez C, Shin SJ, Fang B, Barve M, Maruzzo M, Bracarda S, Kim M, Kerloeguen Y, Gallo JD, Maund SL, Harris A, Huang KC, Poon V, Sutaria DS, Gurney H. A Phase Ib, Open-label Study Evaluating the Safety and Efficacy of Ipatasertib plus Rucaparib in Patients with Metastatic Castration-resistant Prostate Cancer. Clin Cancer Res 2023; 29:3292-3300. [PMID: 37339186 DOI: 10.1158/1078-0432.ccr-22-2585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/29/2022] [Accepted: 06/15/2023] [Indexed: 06/22/2023]
Abstract
PURPOSE To report the safety and efficacy of ipatasertib (AKT inhibitor) combined with rucaparib (PARP inhibitor) in patients with metastatic castration-resistant prostate cancer (mCRPC) previously treated with second-generation androgen receptor inhibitors. PATIENTS AND METHODS In this two-part phase Ib trial (NCT03840200), patients with advanced prostate, breast, or ovarian cancer received ipatasertib (300 or 400 mg daily) plus rucaparib (400 or 600 mg twice daily) to assess safety and identify a recommended phase II dose (RP2D). A part 1 dose-escalation phase was followed by a part 2 dose-expansion phase in which only patients with mCRPC received the RP2D. The primary efficacy endpoint was prostate-specific antigen (PSA) response (≥50% reduction) in patients with mCRPC. Patients were not selected on the basis of tumor mutational status. RESULTS Fifty-one patients were enrolled (part 1 = 21; part 2 = 30). Ipatasertib 400 mg daily plus rucaparib 400 mg twice daily was the selected RP2D, received by 37 patients with mCRPC. Grade 3/4 adverse events occurred in 46% (17/37) of patients, with one grade 4 adverse event (anemia, deemed related to rucaparib) and no deaths. Adverse events leading to treatment modification occurred in 70% (26/37). The PSA response rate was 26% (9/35), and the objective response rate per Response Criteria in Solid Tumors (RECIST) 1.1 was 10% (2/21). Median radiographic progression-free survival per Prostate Cancer Working Group 3 criteria was 5.8 months [95% confidence interval (CI), 4.0-8.1], and median overall survival was 13.3 months (95% CI, 10.9-not evaluable). CONCLUSIONS Ipatasertib plus rucaparib was manageable with dose modification but did not demonstrate synergistic or additive antitumor activity in previously treated patients with mCRPC.
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Affiliation(s)
- David Pook
- Cabrini Monash University Department of Medical Oncology, Cabrini Health, Malvern, Victoria, Australia
| | - Daniel M Geynisman
- Medical Oncology, Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania
| | - Joan Carles
- Vall d'Hebron Institute of Oncology, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Filippo de Braud
- Oncologia Medica, Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | - Anthony M Joshua
- Kinghorn Cancer Centre, Saint Vincent's Hospital, Darlinghurst, New South Wales, Australia
| | | | - Casilda Llácer Pérez
- Medical Oncology Intercenter Unit, Regional and Virgen de la Victoria University Hospitals, IBIMA, Málaga, Spain
| | - Sang Joon Shin
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Bruno Fang
- Astera Cancer Care, East Brunswick, New Jersey
| | - Minal Barve
- Mary Crowley Cancer Research Center, Dallas, Texas
| | - Marco Maruzzo
- Department of Oncology, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Sergio Bracarda
- Medical and Translational Oncology Unit, Department of Oncology, Azienda Ospedaliera Santa Maria, Terni, Italy
| | - Miso Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | | | | | | | - Adam Harris
- Genentech Inc, South San Francisco, California
| | | | - Victor Poon
- Genentech Inc, South San Francisco, California
| | | | - Howard Gurney
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, New South Wales, Australia
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14
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Palovcak A, Yuan F, Verdun R, Luo L, Zhang Y. Fanconi anemia associated protein 20 (FAAP20) plays an essential role in homology-directed repair of DNA double-strand breaks. Commun Biol 2023; 6:873. [PMID: 37620397 PMCID: PMC10449828 DOI: 10.1038/s42003-023-05252-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 08/17/2023] [Indexed: 08/26/2023] Open
Abstract
FAAP20 is a Fanconi anemia (FA) protein that associates with the FA core complex to promote FANCD2/FANCI monoubiquitination and activate the damage response to interstrand crosslink damage. Here, we report that FAAP20 has a marked role in homologous recombination at a DNA double-strand break not associated with an ICL and separable from its binding partner FANCA. While FAAP20's role in homologous recombination is not dependent on FANCA, we found that FAAP20 stimulates FANCA's biochemical activity in vitro and participates in the single-strand annealing pathway of double-strand break repair in a FANCA-dependent manner. This indicates that FAAP20 has roles in several homology-directed repair pathways. Like other homology-directed repair factors, FAAP20 loss causes a reduction in nuclear RAD51 Irradiation-induced foci; and sensitizes cancer cells to ionizing radiation and PARP inhibition. In summary, FAAP20 participates in DNA double strand break repair by supporting homologous recombination in a non-redundant manner to FANCA, and single-strand annealing repair via FANCA-mediated strand annealing activity.
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Affiliation(s)
- Anna Palovcak
- Department of Biochemistry & Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Fenghua Yuan
- Department of Biochemistry & Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Ramiro Verdun
- Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Liang Luo
- Department of Biochemistry & Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Yanbin Zhang
- Department of Biochemistry & Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
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15
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Hockings H, Miller RE. The role of PARP inhibitor combination therapy in ovarian cancer. Ther Adv Med Oncol 2023; 15:17588359231173183. [PMID: 37215065 PMCID: PMC10196552 DOI: 10.1177/17588359231173183] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 04/13/2023] [Indexed: 05/24/2023] Open
Abstract
The use of PARP inhibitors (PARPi) has transformed the care of advanced high-grade serous/endometrioid ovarian cancer. PARPi are now available to patients in both the first-line and recurrent platinum-sensitive disease settings; therefore, most patients will receive PARPi at some point in their treatment pathway. The majority of this expanding population of patients eventually acquire resistance to PARPi, in addition to those with primary PARPi resistance. We discuss the rationale behind developing combination therapies, to work synergistically with PARPi and overcome mechanisms of resistance to restore drug sensitivity, and clinical evidence of their efficacy to date.
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Affiliation(s)
- Helen Hockings
- Department of Medical Oncology, St
Bartholomew’s Hospital, London, UK
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16
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Yagi K, Ono H, Kudo A, Kinowaki Y, Asano D, Watanabe S, Ishikawa Y, Ueda H, Akahoshi K, Tanaka S, Tanabe M. MGMT is frequently inactivated in pancreatic NET-G2 and is associated with the therapeutic activity of STZ-based regimens. Sci Rep 2023; 13:7535. [PMID: 37161026 PMCID: PMC10170117 DOI: 10.1038/s41598-023-34666-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 05/05/2023] [Indexed: 05/11/2023] Open
Abstract
O6-methylguanine-DNA methyltransferase (MGMT) has been linked with alkylating agent resistance and tumor growth suppression. However, its role remains undetermined in pancreatic neuroendocrine tumors (Pan-NET). The MGMT expression was examined by immunohistochemistry in 142 patients to evaluate MGMT immunoreactivity and clinicopathological factors. We analyzed the relationship between MGMT expression and treatment efficacy in 19 patients who received STZ-based regimens. In 142 Pan-NET, 97 cases (68.3%) were judged as MGMT-positive and 45 cases (31.6%) as negative. MGMT negativity was significantly more common in NET-G2 (62.5%) than in NET-G1 (11.2%, p < 0.001). MGMT-negative cases were associated significantly with larger tumor size (p < 0.01), higher Ki-67 index (p < 0.01), higher mitotic index (p < 0.05), and more frequent liver metastasis (p < 0.05). Of the 19 cases treated with STZ, 6 cases were determined as SD and 4 cases as PD in MGMT-positive patients (N = 10), while 5 cases were determined as PR and 4 cases as SD in MGMT-negative patients (N = 9). Progression-free survival in MGMT-negative cases was significantly better than in MGMT-positive cases (p < 0.05). MGMT expression was lower in NET-G2 than in NET-G1, and STZ-based regimens improved the therapeutic outcomes of MGMT-negative Pan-NET. These findings indicate that NET-G2 may represent a better therapeutic target for STZ treatment.
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Affiliation(s)
- Kohei Yagi
- Department of Hepatobiliary and Pancreatic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroaki Ono
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan.
| | - Atsushi Kudo
- Department of Hepatobiliary and Pancreatic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuko Kinowaki
- Department of Comprehensive Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Daisuke Asano
- Department of Hepatobiliary and Pancreatic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shuichi Watanabe
- Department of Hepatobiliary and Pancreatic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshiya Ishikawa
- Department of Hepatobiliary and Pancreatic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroki Ueda
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Keiichi Akahoshi
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Shinji Tanaka
- Department of Molecular Oncology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Minoru Tanabe
- Department of Hepatobiliary and Pancreatic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
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17
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Loeffler CML, El Nahhas OSM, Muti HS, Seibel T, Cifci D, van Treeck M, Gustav M, Carrero ZI, Gaisa NT, Lehmann KV, Leary A, Selenica P, Reis-Filho JS, Bruechle NO, Kather JN. Direct prediction of Homologous Recombination Deficiency from routine histology in ten different tumor types with attention-based Multiple Instance Learning: a development and validation study. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.03.08.23286975. [PMID: 36945540 PMCID: PMC10029072 DOI: 10.1101/2023.03.08.23286975] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Background Homologous Recombination Deficiency (HRD) is a pan-cancer predictive biomarker that identifies patients who benefit from therapy with PARP inhibitors (PARPi). However, testing for HRD is highly complex. Here, we investigated whether Deep Learning can predict HRD status solely based on routine Hematoxylin & Eosin (H&E) histology images in ten cancer types. Methods We developed a fully automated deep learning pipeline with attention-weighted multiple instance learning (attMIL) to predict HRD status from histology images. A combined genomic scar HRD score, which integrated loss of heterozygosity (LOH), telomeric allelic imbalance (TAI) and large-scale state transitions (LST) was calculated from whole genome sequencing data for n=4,565 patients from two independent cohorts. The primary statistical endpoint was the Area Under the Receiver Operating Characteristic curve (AUROC) for the prediction of genomic scar HRD with a clinically used cutoff value. Results We found that HRD status is predictable in tumors of the endometrium, pancreas and lung, reaching cross-validated AUROCs of 0.79, 0.58 and 0.66. Predictions generalized well to an external cohort with AUROCs of 0.93, 0.81 and 0.73 respectively. Additionally, an HRD classifier trained on breast cancer yielded an AUROC of 0.78 in internal validation and was able to predict HRD in endometrial, prostate and pancreatic cancer with AUROCs of 0.87, 0.84 and 0.67 indicating a shared HRD-like phenotype is across tumor entities. Conclusion In this study, we show that HRD is directly predictable from H&E slides using attMIL within and across ten different tumor types.
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Affiliation(s)
- Chiara Maria Lavinia Loeffler
- Department of Medicine III, University Hospital RWTH Aachen, Aachen, Germany
- Else Kroener Fresenius Center for Digital Health, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany
- Department of Medicine I, University Hospital and Faculty of Medicine Carl Gustav Carus, Technische Universitat Dresden, Dresden, Germany
| | - Omar S M El Nahhas
- Else Kroener Fresenius Center for Digital Health, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Hannah Sophie Muti
- Else Kroener Fresenius Center for Digital Health, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany
- Department for Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Tobias Seibel
- Department of Medicine III, University Hospital RWTH Aachen, Aachen, Germany
| | - Didem Cifci
- Department of Medicine III, University Hospital RWTH Aachen, Aachen, Germany
| | - Marko van Treeck
- Department of Medicine III, University Hospital RWTH Aachen, Aachen, Germany
- Else Kroener Fresenius Center for Digital Health, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Marco Gustav
- Else Kroener Fresenius Center for Digital Health, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Zunamys I Carrero
- Else Kroener Fresenius Center for Digital Health, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Nadine T Gaisa
- Institute of Pathology, University Hospital RWTH Aachen, Aachen, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD), Germany
| | - Kjong-Van Lehmann
- Institute of Pathology, University Hospital RWTH Aachen, Aachen, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD), Germany
| | - Alexandra Leary
- Gynecological Cancer Unit, Department of Medicine, Institut Gustave Roussy, Villejuif, France
| | - Pier Selenica
- Experimental Pathology, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jorge S Reis-Filho
- Experimental Pathology, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nadina Ortiz Bruechle
- Institute of Pathology, University Hospital RWTH Aachen, Aachen, Germany
- Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD), Germany
| | - Jakob Nikolas Kather
- Else Kroener Fresenius Center for Digital Health, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany
- Department of Medicine I, University Hospital and Faculty of Medicine Carl Gustav Carus, Technische Universitat Dresden, Dresden, Germany
- Pathology & Data Analytics, Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, United Kingdom
- Medical Oncology, National Center for Tumor Diseases (NCT), University Hospital Heidelberg, Heidelberg, Germany
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18
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Multiparameter single-cell proteomic technologies give new insights into the biology of ovarian tumors. Semin Immunopathol 2023; 45:43-59. [PMID: 36635516 PMCID: PMC9974728 DOI: 10.1007/s00281-022-00979-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/11/2022] [Indexed: 01/13/2023]
Abstract
High-grade serous ovarian cancer (HGSOC) is the most lethal gynecological malignancy. Its diagnosis at advanced stage compounded with its excessive genomic and cellular heterogeneity make curative treatment challenging. Two critical therapeutic challenges to overcome are carboplatin resistance and lack of response to immunotherapy. Carboplatin resistance results from diverse cell autonomous mechanisms which operate in different combinations within and across tumors. The lack of response to immunotherapy is highly likely to be related to an immunosuppressive HGSOC tumor microenvironment which overrides any clinical benefit. Results from a number of studies, mainly using transcriptomics, indicate that the immune tumor microenvironment (iTME) plays a role in carboplatin response. However, in patients receiving treatment, the exact mechanistic details are unclear. During the past decade, multiplex single-cell proteomic technologies have come to the forefront of biomedical research. Mass cytometry or cytometry by time-of-flight, measures up to 60 parameters in single cells that are in suspension. Multiplex cellular imaging technologies allow simultaneous measurement of up to 60 proteins in single cells with spatial resolution and interrogation of cell-cell interactions. This review suggests that functional interplay between cell autonomous responses to carboplatin and the HGSOC immune tumor microenvironment could be clarified through the application of multiplex single-cell proteomic technologies. We conclude that for better clinical care, multiplex single-cell proteomic technologies could be an integral component of multimodal biomarker development that also includes genomics and radiomics. Collection of matched samples from patients before and on treatment will be critical to the success of these efforts.
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19
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Yakovlev VA, Sullivan SA, Fields EC, Temkin SM. PARP inhibitors in the treatment of ARID1A mutant ovarian clear cell cancer: PI3K/Akt1-dependent mechanism of synthetic lethality. Front Oncol 2023; 13:1124147. [PMID: 36910637 PMCID: PMC9992988 DOI: 10.3389/fonc.2023.1124147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Abstract
Introduction Poly(ADP-ribose) polymerase (PARP) is a nuclear enzyme involved in the repair of DNA single-strand breaks (SSB). The recent development of poly(ADP-ribose) polymerase inhibitors (PARPi) results from over 45 years of studies. When the activity of PARP1 or PARP2 is compromised, DNA SSB lesions are unresolved and can be converted to DNA double-strand breaks (DSBs) by the cellular transcription mechanisms. ARID1A (also called BAF250a) is an important component of the mammalian Switch/Sucrose Non-Fermentable (SWI/SNF) chromatin-remodeling complex. ARID1A gene demonstrates >50% of mutation rate in ovarian clear-cell carcinomas (OCCC). Mutated or downregulated ARID1A significantly compromises the Homologous Recombination Repair (HRR) of DNA DSB. Results The present study demonstrated that downregulated or mutated ARID1A attenuates DNA HRR through stimulation of the PI3K/Akt1 pathway and makes tumor cells highly sensitive to PARPi and PARPi/ionizing radiation (IR) combination. We showed that PI3K/Akt1 pathway plays an important role in the sensitization of cancer cell lines with compromised function of ARID1A to PARPi treatment. Discussion We believe that using of PARPi monotherapy or in combination with radiation therapy is an appealing strategy for treating ARID1A-mutated cancers, as well as many other types of PI3K/Akt1-driven cancers.
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Affiliation(s)
- Vasily A Yakovlev
- Department of Radiation Oncology, Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, United States
| | - Stephanie A Sullivan
- Gynecologic Oncology Division, Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, United States
| | - Emma C Fields
- Department of Radiation Oncology, Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, United States
| | - Sarah M Temkin
- Gynecologic Oncology Division, Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, United States
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Locally Performed HRD Testing for Ovarian Cancer? Yes, We Can! Cancers (Basel) 2022; 15:cancers15010043. [PMID: 36612041 PMCID: PMC9817883 DOI: 10.3390/cancers15010043] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/13/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
Assessment of HRD status is now essential for ovarian cancer patient management. A relevant percentage of high-grade serous carcinoma (HGSC) is characterized by HRD, which is caused by genetic alterations in the homologous recombination repair (HRR) pathway. Recent trials have shown that not only patients with pathogenic/likely pathogenic BRCA variants, but also BRCAwt/HRD patients, are sensitive to PARPis and platinum therapy. The most common HRD test is Myriad MyChoice CDx, but there is a pressing need to offer an alternative to outsourcing analysis, which typically requires high costs and lengthy turnaround times. In order to set up a complete in-house workflow for HRD testing, we analyzed a small cohort of HGSC patients using the CE-IVD AmoyDx HRD Focus Panel and compared our results with Myriad's. In addition, to further deepen the mechanisms behind HRD, we analyzed the study cohort by using both a custom NGS panel that analyzed 21 HRR-related genes and FISH analysis to determine the copy numbers of PTEN and EMSY. We found complete concordance in HRD status detected by the Amoy and the Myriad assays, supporting the feasibility of internal HRD testing.
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Schmidt L, Sehic O, Wild C. Counting the cost of public and philanthropic R&D funding: the case of olaparib. J Pharm Policy Pract 2022; 15:47. [PMID: 35974344 PMCID: PMC9379234 DOI: 10.1186/s40545-022-00445-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 08/02/2022] [Indexed: 11/12/2022] Open
Abstract
Background Lack of transparency around manufacturing costs, who bears the bulk of research and development costs and how total costs relate to the pricing of products, continue to fuel debates. This paper considers the case of olaparib (Lynparza®), recently indicated for use among BRCA-mutant breast cancer patients, and estimates the extent of public and philanthropic R&D funding. Methods We know from previous work that attempting to ascertain the amount of public and philanthropic funding using purely bibliographic sources (i.e., authors’ declarations of funding sources and amounts traced through funders) is limited. Since we knew that a publically funded research unit was pivotal in developing olaparib, we decided to supplement bibliographic data with a Freedom of Information request for administrative records on research funding data from this research centre. Research In terms of stages of product development, work conducted in the pre-clinical research stage was the most likely to report non-industry funding (> 90% of pre-clinical projects received public or philanthropic funding). Clinical trials were least likely to be funded through non-industry sources—although even here, contrary to the popular assertion that this is wholly industry-financed, we found public or philanthropic funding declared by 23% of clinical trials. Using information reported in the publications, we identified approximately £128 million of public and philanthropic funding that may have contributed to the development of olaparib. However, this amount was less than one-third of the total amount received by one research institute playing a pivotal role in product discovery. The Institute of Cancer Research reported receiving 38 funding awards to support olaparib work for BRCA-mutant breast cancer totalling over £400 million. Conclusions Government or charitable funding of pharmaceutical product development is difficult to trace using publicly available sources, due to incomplete information provided by authors and/or a lack of consistency in funding information made available by funders. This study has shown that a Freedom of Information request, in countries where such requests are supported, can provide information to help build the picture of financial support. In the example of olaparib, the funding amounts directly reported considerably exceeded amounts that could be ascertained using publically available bibliographic sources.
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Affiliation(s)
- L Schmidt
- Austrian Institute for Health Technology Assessment GmbH, Garnisongasse 7/20, 1090, Vienna, Austria.
| | - O Sehic
- Austrian Institute for Health Technology Assessment GmbH, Garnisongasse 7/20, 1090, Vienna, Austria
| | - C Wild
- Austrian Institute for Health Technology Assessment GmbH, Garnisongasse 7/20, 1090, Vienna, Austria
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22
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Kong L, Xu J, Yu L, Liu S, Liu Z, Xiang J. Construction of PARPi Resistance-related Competing Endogenous RNA Network. Curr Genomics 2022; 23:262-274. [PMID: 36777878 PMCID: PMC9875538 DOI: 10.2174/1389202923666220527114108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/20/2022] [Accepted: 03/29/2022] [Indexed: 11/22/2022] Open
Abstract
Objective: Ovarian cancer is a kind of common gynecological malignancy in women. PARP inhibitors (PARPi) have been approved for ovarian cancer treatment. However, the primary and acquired resistance have limited the application of PARPi. The mechanisms remain to be elucidated. Methods: In this study, we characterized the expression profiles of mRNA and nonconding RNAs (ncRNAs) and constructed the regulatory networks based on RNA sequencing in PARPi Olaparib-induced ovarian cancer cells. Results: We found that the functions of the differentially expressed genes were enriched in "PI3K/AKT signaling pathway," "MAPK signaling pathway" and "metabolic process". The functions of DELs (cis) were enriched in "Human papillomavirus infection""tight junction" "MAPK signaling pathway". As the central regulator of ceRNAs, the differentially expressed miRNAs were enriched in "Human papillomavirus infection" "MAPK signaling pathway" "Ras signaling pathway". According to the degree of interaction, we identified 3 lncRNAs, 2 circRNAs, 7 miRNAs, and 12 mRNA as the key regulatory ceRNA axis, in which miR-320b was the important mediator. Conclusion: Here, we revealed the key regulatory lncRNA (circRNA)-miRNA-mRNA axis and their involved pathways in the PARPi resistant ovarian cancer cells. These findings provide new insights into exploring the ceRNA regulatory networks and developing new targets for PARPi resistance.
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Affiliation(s)
- Lili Kong
- Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China
| | - Jiaqi Xu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, Hunan, Beijing, China;,NHC Key Laboratory of Carcinogenesis and The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, Beijing, China
| | - Lijun Yu
- Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China
| | - Shuo Liu
- Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China
| | - Zongjian Liu
- Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China
| | - Juanjuan Xiang
- Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, Hunan, Beijing, China;,NHC Key Laboratory of Carcinogenesis and The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, Beijing, China,Address correspondence to this author at the Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, Hunan, China; NHC Key Laboratory of Carcinogenesis and The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, Beijing, China; Tel/Fax: 008673182355401; E-mail:
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23
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Qin C, Ji Z, Zhai E, Xu K, Zhang Y, Li Q, Jing H, Wang X, Song X. PARP inhibitor olaparib enhances the efficacy of radiotherapy on XRCC2-deficient colorectal cancer cells. Cell Death Dis 2022; 13:505. [PMID: 35643812 PMCID: PMC9148313 DOI: 10.1038/s41419-022-04967-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 05/15/2022] [Accepted: 05/23/2022] [Indexed: 12/14/2022]
Abstract
The use of PARP inhibitors in combination with radiotherapy is a promising strategy to locally enhance DNA damage in tumors. Loss of XRCC2 compromises DNA damage repairs, and induced DNA damage burdens may increase the reliance on PARP-dependent DNA repairs of cancer cells to render cell susceptibility to PARP inhibitor therapy. Here we tested the hypothesis that XRCC2 loss sensitizes colorectal cancer (CRC) to PARP inhibitor in combination with radiotherapy (RT). We show that high levels of XRCC2 or PARP1 in LARC patients were significantly associated with poor overall survival (OS). Co-expression analyses found that low levels of PARP1 and XRCC2 were associated with better OS. Our in vitro experiments indicated that olaparib+IR led to reduced clonogenic survival, more DNA damage, and longer durations of cell cycle arrest and senescence in XRCC2-deficient cells relative to wild-type cells. Furthermore, our mouse xenograft experiments indicated that RT + olaparib had greater anti-tumor effects and led to long-term remission in mice with XRCC2-deficient tumors. These findings suggest that XRCC2-deficient CRC acquires high sensitivity to PARP inhibition after IR treatment and supports the clinical development for the use of olaparib as a radiosensitizer for treatment of XRCC2-deficient CRC.
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Affiliation(s)
- Changjiang Qin
- grid.256922.80000 0000 9139 560XDepartment of Gastrointestinal Surgery, Huaihe Hospital of Henan University, Kaifeng, China
| | - Zhiyu Ji
- grid.256922.80000 0000 9139 560XDepartment of Gastrointestinal Surgery, Huaihe Hospital of Henan University, Kaifeng, China
| | - Ertao Zhai
- grid.412615.50000 0004 1803 6239Department of Gastrointestinal and Pancreatic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Kaiwu Xu
- grid.412615.50000 0004 1803 6239Department of Gastrointestinal and Pancreatic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yijie Zhang
- Department of Medical Oncology, Huaihe Hospital of Hennan University, Kaifeng, China
| | - Quanying Li
- grid.256922.80000 0000 9139 560XDepartment of Gastrointestinal Surgery, Huaihe Hospital of Henan University, Kaifeng, China
| | - Hong Jing
- Department of Pathology, Huaihe Hospital of Hennan University, Kaifeng, China
| | - Xiaoliang Wang
- grid.413087.90000 0004 1755 3939Department of General Surgery, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Xinming Song
- grid.412615.50000 0004 1803 6239Department of Gastrointestinal and Pancreatic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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24
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Homologous recombination deficiency (HRD) signature-3 in ovarian and uterine carcinosarcomas correlates with preclinical sensitivity to Olaparib, a poly (adenosine diphosphate [ADP]- ribose) polymerase (PARP) inhibitor. Gynecol Oncol 2022; 166:117-125. [DOI: 10.1016/j.ygyno.2022.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/03/2022] [Accepted: 05/08/2022] [Indexed: 11/19/2022]
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25
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Mladek AC, Yan H, Tian S, Decker PA, Burgenske DM, Bakken K, Hu Z, He L, Connors MA, Carlson BL, Wilson J, Bommi-Reddy A, Conery A, Eckel-Passow JE, Sarkaria JN, Kitange GJ. RBBP4-p300 axis modulates expression of genes essential for cell survival and is a potential target for therapy in glioblastoma. Neuro Oncol 2022; 24:1261-1272. [PMID: 35231103 PMCID: PMC9340617 DOI: 10.1093/neuonc/noac051] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND RBBP4 activates transcription by histone acetylation, but the partner histone acetyltransferases are unknown. Thus, we investigated the hypothesis that RBBP4 interacts with p300 in a complex in glioblastoma (GBM). METHODS shRNA silencing of RBBP4 or p300 and RNAseq was used to identify genes co-regulated by RBBP4 and p300 in GBM43 patient-derived xenograft (PDX). RBBP4/p300 complex was demonstrated using proximity ligation assay (PLA) and ChIPseq delineated histone H3 acetylation and RBBP4/p300 complex binding in promoters/enhancers. Temozolomide (TMZ)-induced DNA double strand breaks (DSBs) were evaluated by γ-H2AX and proliferation by CyQuant and live cell monitoring assays. In vivo efficacy was based on survival of mice with orthotopic tumors. RESULTS shRBBP4 and shp300 downregulated 4768 genes among which 1485 (31%) were commonly downregulated by both shRNAs, while upregulated genes were 2484, including 863 (35%) common genes. The pro-survival genes were the top-ranked among the downregulated genes, including C-MYC. RBBP4/p300 complex was demonstrated in the nucleus, and shRBBP4 or shp300 significantly sensitized GBM cells to TMZ compared to the control shNT in vitro (P < .05). Moreover, TMZ significantly prolonged the survival of mice bearing GBM22-shRBBP4 orthotopic tumors compared with control shNT tumors (median shNT survival 52 days vs. median shRBBP4 319 days; P = .001). CREB-binding protein (CBP)/p300 inhibitor CPI-1612 suppressed H3K27Ac and RBBP4/p300 complex target proteins, including C-MYC, and synergistically sensitized TMZ in vitro. Pharmacodynamic evaluation confirmed brain penetration by CPI-1612 supporting further investigation to evaluate efficacy to sensitize TMZ. CONCLUSIONS RBBP4/p300 complex is present in GBM cells and is a potential therapeutic target.
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Affiliation(s)
- Ann C Mladek
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Huihuang Yan
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | - Shulan Tian
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | - Paul A Decker
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Katrina Bakken
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Zeng Hu
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Lihong He
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Margaret A Connors
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Brett L Carlson
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jonathan Wilson
- Constellation Pharmaceuticals, Cambridge, Massachusetts, USA
| | | | - Andy Conery
- Constellation Pharmaceuticals, Cambridge, Massachusetts, USA
| | | | - Jann N Sarkaria
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Gaspar J Kitange
- Corresponding Author: Gaspar J. Kitange, MD, PhD, Department of Radiation Oncology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA (/)
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26
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Yee C, Dickson KA, Muntasir MN, Ma Y, Marsh DJ. Three-Dimensional Modelling of Ovarian Cancer: From Cell Lines to Organoids for Discovery and Personalized Medicine. Front Bioeng Biotechnol 2022; 10:836984. [PMID: 35223797 PMCID: PMC8866972 DOI: 10.3389/fbioe.2022.836984] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/19/2022] [Indexed: 12/11/2022] Open
Abstract
Ovarian cancer has the highest mortality of all of the gynecological malignancies. There are several distinct histotypes of this malignancy characterized by specific molecular events and clinical behavior. These histotypes have differing responses to platinum-based drugs that have been the mainstay of therapy for ovarian cancer for decades. For histotypes that initially respond to a chemotherapeutic regime of carboplatin and paclitaxel such as high-grade serous ovarian cancer, the development of chemoresistance is common and underpins incurable disease. Recent discoveries have led to the clinical use of PARP (poly ADP ribose polymerase) inhibitors for ovarian cancers defective in homologous recombination repair, as well as the anti-angiogenic bevacizumab. While predictive molecular testing involving identification of a genomic scar and/or the presence of germline or somatic BRCA1 or BRCA2 mutation are in clinical use to inform the likely success of a PARP inhibitor, no similar tests are available to identify women likely to respond to bevacizumab. Functional tests to predict patient response to any drug are, in fact, essentially absent from clinical care. New drugs are needed to treat ovarian cancer. In this review, we discuss applications to address the currently unmet need of developing physiologically relevant in vitro and ex vivo models of ovarian cancer for fundamental discovery science, and personalized medicine approaches. Traditional two-dimensional (2D) in vitro cell culture of ovarian cancer lacks critical cell-to-cell interactions afforded by culture in three-dimensions. Additionally, modelling interactions with the tumor microenvironment, including the surface of organs in the peritoneal cavity that support metastatic growth of ovarian cancer, will improve the power of these models. Being able to reliably grow primary tumoroid cultures of ovarian cancer will improve the ability to recapitulate tumor heterogeneity. Three-dimensional (3D) modelling systems, from cell lines to organoid or tumoroid cultures, represent enhanced starting points from which improved translational outcomes for women with ovarian cancer will emerge.
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Affiliation(s)
- Christine Yee
- Translational Oncology Group, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Kristie-Ann Dickson
- Translational Oncology Group, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Mohammed N. Muntasir
- Translational Oncology Group, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Yue Ma
- Translational Oncology Group, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Deborah J. Marsh
- Translational Oncology Group, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
- Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia
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27
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Kumar S, Gupta S, Maurya AP, Singh R, Nigam S. Hormonal and Targeted Treatments in Breast Cancer. Breast Cancer 2022. [DOI: 10.1007/978-981-16-4546-4_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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28
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Le Gac M, Koual M, Delanoy N, Perkins G, Nguyen-Xuan HT, Blons H, Le Frère-Belda MA, Laurent-Puig P, Bentivegna E, Durdux C, Azaïs H, Bats AS. [Place of PARP inhibitors in the treatment of endometrial and cervical cancers]. Bull Cancer 2021; 109:65-75. [PMID: 34801228 DOI: 10.1016/j.bulcan.2021.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 09/01/2021] [Accepted: 09/07/2021] [Indexed: 11/30/2022]
Abstract
New molecular therapeutic approaches have emerged in recent years for advanced gynaecological cancers, including targeted therapies such as poly-ADP-ribose polymerase inhibitors (PARPi). These have demonstrated efficacy in high-grade serous ovarian cancers in patients carrying a mutation in the BRCA gene, which predisposes them to breast and ovarian cancers. Clinical and pre-clinical data suggest that the activity of PARPi inhibitors may not be limited to BRCA mutated tumours and may involve the homologous recombination pathway. These data raise the question of the potential efficacy of PARPi in advanced endometrial and cervical cancers where treatment options are currently limited. At present, there are few data available on the activity of PARPi in endometrial and cervical cancers, but some results seem promising. In this review, we present a synthesis of the available studies concerning PARPi in endometrial and cervical cancer.
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Affiliation(s)
- Marjolaine Le Gac
- Université de Paris, faculté de médecine Paris-Descartes, 15, rue de l'École-de-Médecine, 75006 Paris, France.
| | - Meriem Koual
- Université de Paris, faculté de médecine Paris-Descartes, 15, rue de l'École-de-Médecine, 75006 Paris, France; APHP centre, hôpital Européen Georges-Pompidou, chirurgie cancérologique gynécologique et du sein, 75015 Paris, France; Inserm UMR-S 1124, université de Paris, centre universitaire des Saints-Pères, 45, rue des Saints-Pères, 75006 Paris, France
| | - Nicolas Delanoy
- Université de Paris, faculté de médecine Paris-Descartes, 15, rue de l'École-de-Médecine, 75006 Paris, France; APHP centre, hôpital européen Georges-Pompidou, oncologie médicale, 75015 Paris, France
| | - Géraldine Perkins
- Centre de recherche des Cordeliers, Inserm, CNRS, Sorbonne université, USPC, université Paris Descartes, université Paris Diderot, équipe labellisée ligue nationale contre le cancer, 15, rue de l'École-de-Médecine, 75006 Paris, France; APHP centre, hôpital européen Georges-Pompidou, oncogénétique, 75015 Paris, France
| | - Huyên-Thu Nguyen-Xuan
- Université de Paris, faculté de médecine Paris-Descartes, 15, rue de l'École-de-Médecine, 75006 Paris, France
| | - Hélène Blons
- Université de Paris, faculté de médecine Paris-Descartes, 15, rue de l'École-de-Médecine, 75006 Paris, France; Centre de recherche des Cordeliers, Inserm, CNRS, Sorbonne université, USPC, université Paris Descartes, université Paris Diderot, équipe labellisée ligue nationale contre le cancer, 15, rue de l'École-de-Médecine, 75006 Paris, France; APHP centre, hôpital européen Georges-Pompidou, biochimie, 75015 Paris, France
| | | | - Pierre Laurent-Puig
- Université de Paris, faculté de médecine Paris-Descartes, 15, rue de l'École-de-Médecine, 75006 Paris, France; Centre de recherche des Cordeliers, Inserm, CNRS, Sorbonne université, USPC, université Paris Descartes, université Paris Diderot, équipe labellisée ligue nationale contre le cancer, 15, rue de l'École-de-Médecine, 75006 Paris, France; APHP centre, hôpital européen Georges-Pompidou, oncologie médicale, 75015 Paris, France
| | - Enrica Bentivegna
- Université de Paris, faculté de médecine Paris-Descartes, 15, rue de l'École-de-Médecine, 75006 Paris, France
| | - Catherine Durdux
- Université de Paris, faculté de médecine Paris-Descartes, 15, rue de l'École-de-Médecine, 75006 Paris, France; APHP centre, hôpital européen Georges-Pompidou, oncologie médicale, 75015 Paris, France
| | - Henri Azaïs
- Université de Paris, faculté de médecine Paris-Descartes, 15, rue de l'École-de-Médecine, 75006 Paris, France; APHP centre, hôpital Européen Georges-Pompidou, chirurgie cancérologique gynécologique et du sein, 75015 Paris, France; Centre de recherche des Cordeliers, Inserm, CNRS, Sorbonne université, USPC, université Paris Descartes, université Paris Diderot, équipe labellisée ligue nationale contre le cancer, 15, rue de l'École-de-Médecine, 75006 Paris, France
| | - Anne-Sophie Bats
- Université de Paris, faculté de médecine Paris-Descartes, 15, rue de l'École-de-Médecine, 75006 Paris, France; APHP centre, hôpital Européen Georges-Pompidou, chirurgie cancérologique gynécologique et du sein, 75015 Paris, France; Centre de recherche des Cordeliers, Inserm, CNRS, Sorbonne université, USPC, université Paris Descartes, université Paris Diderot, équipe labellisée ligue nationale contre le cancer, 15, rue de l'École-de-Médecine, 75006 Paris, France
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Tang J, Casey PJ, Wang M. Suppression of isoprenylcysteine carboxylmethyltransferase compromises DNA damage repair. Life Sci Alliance 2021; 4:4/12/e202101144. [PMID: 34610973 PMCID: PMC8500237 DOI: 10.26508/lsa.202101144] [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: 06/25/2021] [Revised: 09/18/2021] [Accepted: 09/20/2021] [Indexed: 11/24/2022] Open
Abstract
Inhibition of isoprenylcysteine carboxylmethyltransferase reduces cancer cells’ ability to repair DNA damage by suppressing the expression of critical DNA damage repair pathway genes, hence increasing their vulnerability to DNA damaging insults such as PARP inhibitors and other DNA damage agents. DNA damage is a double-edged sword for cancer cells. On the one hand, DNA damage–induced genomic instability contributes to cancer development; on the other hand, accumulating damage compromises proliferation and survival of cancer cells. Understanding the key regulators of DNA damage repair machinery would benefit the development of cancer therapies that induce DNA damage and apoptosis. In this study, we found that isoprenylcysteine carboxylmethyltransferase (ICMT), a posttranslational modification enzyme, plays an important role in DNA damage repair. We found that ICMT suppression consistently reduces the activity of MAPK signaling, which compromises the expression of key proteins in the DNA damage repair machinery. The ensuing accumulation of DNA damage leads to cell cycle arrest and apoptosis in multiple breast cancer cells. Interestingly, these observations are more pronounced in cells grown under anchorage-independent conditions or grown in vivo. Consistent with the negative impact on DNA repair, ICMT inhibition transforms the cancer cells into a “BRCA-like” state, hence sensitizing cancer cells to the treatment of PARP inhibitor and other DNA damage–inducing agents.
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Affiliation(s)
- Jingyi Tang
- Duke-NUS Medical School, Program in Cancer and Stem Cell, Singapore, Singapore
| | - Patrick J Casey
- Duke-NUS Medical School, Program in Cancer and Stem Cell, Singapore, Singapore.,Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC, USA
| | - Mei Wang
- Duke-NUS Medical School, Program in Cancer and Stem Cell, Singapore, Singapore .,Department of Biochemistry, National University of Singapore, Singapore 117596
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30
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Sargazi S, Mukhtar M, Rahdar A, Barani M, Pandey S, Díez-Pascual AM. Active Targeted Nanoparticles for Delivery of Poly(ADP-ribose) Polymerase (PARP) Inhibitors: A Preliminary Review. Int J Mol Sci 2021; 22:10319. [PMID: 34638660 PMCID: PMC8508934 DOI: 10.3390/ijms221910319] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 09/19/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022] Open
Abstract
Nanotechnology has revolutionized novel drug delivery strategies through establishing nanoscale drug carriers, such as niosomes, liposomes, nanomicelles, dendrimers, polymeric micelles, and nanoparticles (NPs). Owing to their desirable cancer-targeting efficacy and controlled release, these nanotherapeutic modalities are broadly used in clinics to improve the efficacy of small-molecule inhibitors. Poly(ADP-ribose) polymerase (PARP) family members engage in various intracellular processes, including DNA repair, gene transcription, signal transduction, cell cycle regulation, cell division, and antioxidant response. PARP inhibitors are synthetic small-molecules that have emerged as one of the most successful innovative strategies for targeted therapy in cancer cells harboring mutations in DNA repair genes. Despite these advances, drug resistance and unwanted side effects are two significant drawbacks to using PARP inhibitors in the clinic. Recently, the development of practical nanotechnology-based drug delivery systems has tremendously improved the efficacy of PARP inhibitors. NPs can specifically accumulate in the leaky vasculature of the tumor and cancer cells and release the chemotherapeutic moiety in the tumor microenvironment. On the contrary, NPs are usually unable to permeate across the body's normal organs and tissues; hence the toxicity is zero to none. NPs can modify the release of encapsulated drugs based on the composition of the coating substance. Delivering PARP inhibitors without modulation often leads to the toxic effect; therefore, a delivery vehicle is essential to encapsulate them. Various nanocarriers have been exploited to deliver PARP inhibitors in different cancers. Through this review, we hope to cast light on the most innovative advances in applying PARP inhibitors for therapeutic purposes.
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Affiliation(s)
- Saman Sargazi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan 9816743463, Iran;
| | - Mahwash Mukhtar
- Faculty of Pharmacy, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös utca 6, 6720 Szeged, Hungary;
| | - Abbas Rahdar
- Department of Physics, Faculty of Science, University of Zabol, Zabol 538-98615, Iran;
| | - Mahmood Barani
- Medical Mycology and Bacteriology Research Center, Kerman University of Medical Sciences, Kerman 7616913555, Iran;
| | - Sadanad Pandey
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Korea; or
| | - Ana M. Díez-Pascual
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Química Analítica, Química Física e Ingeniería Química, Ctra. Madrid-Barcelona, Km. 33.6, 28805 Alcalá de Henares, Madrid, Spain
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31
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Gao J, Wang Z, Fu J, A J, Ohno Y, Xu C. Combination treatment with cisplatin, paclitaxel and olaparib has synergistic and dose reduction potential in ovarian cancer cells. Exp Ther Med 2021; 22:935. [PMID: 34335884 PMCID: PMC8290430 DOI: 10.3892/etm.2021.10367] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 09/29/2020] [Indexed: 12/27/2022] Open
Abstract
Ovarian cancer is the most lethal type of gynecological cancer. Due to its high heterogeneity and complicated pathological mechanisms, the 5-year survival rate of patients with ovarian cancer is <40%. Tumor cytoreductive surgery and systemic chemotherapy of platinum combined with paclitaxel are currently considered the gold standard for the treatment of ovarian cancer, and chemotherapy resistance has become a key constraint in improving the cure rate of ovarian cancer. Therefore, it is important to identify novel treatment methods and strategies for ovarian cancer. Targeted drugs can not only be used in combination with chemotherapy, but also act as maintenance therapy to promote patient survival time. PARP inhibitor is a novel type of ovarian cancer treatment targeted drug, which can induce an anticancer effect by inhibiting DNA damage and repair of ovarian cancer cells. The present study investigated the different effects of olaparib, cisplatin and paclitaxel in several dosages by single use and combinations on the proliferation of different human ovarian cancer cell lines, in order to verify the synergistic effects of the combinations of the three anticancer agents in pairs. The proliferation inhibitory rate of the cell lines was determined using a Cell Counting Kit-8 assay, while the combination index (CI) value of the combination of three agents in pairs was analyzed using Compusyn software. The proliferation was observed using a crystal violet assay, and the apoptosis ratio was measured via flow cytometry. The results of the present study revealed that the combination of cisplatin with olaparib group had a higher inhibition effect than each single group and had a higher dose-reduction index of >1 than the other two combinations at all concentrations in A2780 and OVCAR-3 cell lines. The difference in proliferation inhibition and induced apoptosis rate of A2780 cell lines was significant in the combination of cisplatin with olaparib group and the control group (P<0.01) at 0.25x IC50. For the OVCAR-3 cell line, the difference was also significant between two groups (P<0.05). The CI values in the A2780 cell line revealed significant differences between the low-dose group (0.0625x, 0.125x and 0.25x IC50) and the high-dose group (0.5x, 1.0x and 2.0x IC50) for the group that received the combination of cisplatin with olaparib (P<0.05). The present study highlighted that the group receiving a combination of cisplatin with olaparib exhibited the most significant synergistic effects among the three combinations, particularly at low doses.
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Affiliation(s)
- Jianwen Gao
- Department of Mathematical Health Science, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan.,School of Medical Engineering, Ma'anshan University, Ma'anshan, Anhui 243100, P.R. China.,Department of Biotechnological Pharmaceutics, Shanghai Pharmaceutical School, Shanghai 200135, P.R. China
| | - Zehua Wang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, P.R. China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, P.R. China
| | - Jiayu Fu
- Department of Mathematical Health Science, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Jisaihan A
- Department of Mathematical Health Science, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Yuko Ohno
- Department of Mathematical Health Science, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Congjian Xu
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, P.R. China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, P.R. China.,Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai 200032, P.R. China
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32
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Efficacy and safety of PARP inhibitors as the maintenance therapy in ovarian cancer: a meta-analysis of nine randomized controlled trials. Biosci Rep 2021; 40:222203. [PMID: 32096544 PMCID: PMC7080644 DOI: 10.1042/bsr20192226] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 01/21/2020] [Accepted: 02/24/2020] [Indexed: 01/19/2023] Open
Abstract
Purpose: Poly ADP ribose polymerase (PARP) inhibitors can effectively kill cancer cells by restraining the activity of DNA repair enzymes and utilizing the characteristics of BRCA mutations. This article evaluates the efficacy and safety of PARP inhibitors (PARPis) in the maintenance treatment of ovarian cancer. Method: We searched for clinical trials in electronic databases. PARPis efficacy were evaluated by the hazard ratios (HR) and its 95% confidence intervals (95% CI) of overall survival (OS) and progression-free survival (PFS) between the PARPis groups and placebo groups, while the PARPis’ safety was assessed by relative risk (RR) values of adverse events (AEs) between the two arms. Results: The immature OS data manifested that patients with BRCA mutation receiving PARPis therapy versus placebo therapy appeared to have longer OS (HR = 0.78, 95%CI = 0.61–1.01; P = 0.06). Compared with placebo group, PARP group had a significant advantage in PFS in ovarian cancer patients with BRCA wild-type (BRCAwt), BRCA mutation (BRCAm), BRCA status unclassified, BRCA1 mutation subgroup and the BRCA2 mutation subgroup (BRCAwt: HR = 0.53, 95%CI = 0.42–0.68, P < 0.00001; BRCAm: HR = 0.30, 95%CI = 0.26–0.34, P < 0.00001; BRCA status unclassified: HR = 0.52, 95%CI = 0.41–0.66, P < 0.00001; BRCA1m: HR = 0.38, 95%CI = 0.29–0.48, P < 0.00001; BRCA2m: HR = 0.23, 95%CI = 0.10–0.57, P = 0.001). Our analysis revealed the incidence rates for AEs of grade ≥3 (grades 3 to 4) and serious AEs in PARPis group were 55.19% and 26.29%, respectively. Conclusion: Our meta-analysis demonstrates that PARPis therapy can significantly improve PFS in ovarian cancer patients, but it has no benefit in OS. However, the therapy is associated with a significant increase in the risk of AEs of grade ≥ 3 and serious AEs.
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33
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Hume S, Dianov GL, Ramadan K. A unified model for the G1/S cell cycle transition. Nucleic Acids Res 2020; 48:12483-12501. [PMID: 33166394 PMCID: PMC7736809 DOI: 10.1093/nar/gkaa1002] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/10/2020] [Accepted: 10/13/2020] [Indexed: 01/01/2023] Open
Abstract
Efficient S phase entry is essential for development, tissue repair, and immune defences. However, hyperactive or expedited S phase entry causes replication stress, DNA damage and oncogenesis, highlighting the need for strict regulation. Recent paradigm shifts and conflicting reports demonstrate the requirement for a discussion of the G1/S transition literature. Here, we review the recent studies, and propose a unified model for the S phase entry decision. In this model, competition between mitogen and DNA damage signalling over the course of the mother cell cycle constitutes the predominant control mechanism for S phase entry of daughter cells. Mitogens and DNA damage have distinct sensing periods, giving rise to three Commitment Points for S phase entry (CP1-3). S phase entry is mitogen-independent in the daughter G1 phase, but remains sensitive to DNA damage, such as single strand breaks, the most frequently-occurring lesions that uniquely threaten DNA replication. To control CP1-3, dedicated hubs integrate the antagonistic mitogenic and DNA damage signals, regulating the stoichiometric cyclin: CDK inhibitor ratio for ultrasensitive control of CDK4/6 and CDK2. This unified model for the G1/S cell cycle transition combines the findings of decades of study, and provides an updated foundation for cell cycle research.
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Affiliation(s)
- Samuel Hume
- Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford OX3 7DQ, UK
| | - Grigory L Dianov
- Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford OX3 7DQ, UK
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Lavrentieva 10, 630090 Novosibirsk, Russian Federation
- Novosibirsk State University, 630090 Novosibirsk, Russian Federation
| | - Kristijan Ramadan
- Medical Research Council Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford OX3 7DQ, UK
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34
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Molinaro E, Andrikou K, Casadei-Gardini A, Rovesti G. BRCA in Gastrointestinal Cancers: Current Treatments and Future Perspectives. Cancers (Basel) 2020; 12:E3346. [PMID: 33198203 PMCID: PMC7697442 DOI: 10.3390/cancers12113346] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 10/26/2020] [Accepted: 11/11/2020] [Indexed: 12/12/2022] Open
Abstract
A strong association between pancreatic cancer and BRCA1 and BRCA2 mutations is documented. Based on promising results of breast and ovarian cancers, several clinical trials with poly (ADP-ribose) polymerase inhibitors (PARPi) are ongoing for gastrointestinal (GI) malignancies, especially for pancreatic cancer. Indeed, the POLO trial results provide promising and awaited changes for the pancreatic cancer therapeutic landscape. Contrariwise, for other gastrointestinal tumors, the rationale is currently only alleged. The role of BRCA mutation in gastrointestinal cancers is the subject of this review. In particular, we aim to provide the latest updates about novel therapeutic strategies that, exploiting DNA repair defects, promise to shape the future therapeutic scenario of GI cancers.
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Affiliation(s)
| | | | - Andrea Casadei-Gardini
- Department of Oncology and Hematology, Division of Oncology, University of Modena and Reggio Emilia, 41121 Modena, Italy; (E.M.); (K.A.); (G.R.)
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35
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Zhang Q, Xu Y, Zhang Z, Li J, Xia Q, Chen Y. Folliculin deficient renal cancer cells exhibit BRCA1 A complex expression impairment and sensitivity to PARP1 inhibitor olaparib. Gene 2020; 769:145243. [PMID: 33069804 DOI: 10.1016/j.gene.2020.145243] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 10/10/2020] [Accepted: 10/13/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Deficiency of folliculin (FLCN) may lead to renal cell carcinoma (RCC) in patients with Birt-Hogg-Dubé (BHD) disease. In this study, we investigated the cytotoxicity induced by PARP inhibitor olaparib in FLCN deficient RCC cells, and the interaction between FLCN and BRCA1 A complex-regulated DNA repair pathway. METHODS AND MATERIALS FLCN expressing (ACHN and UOK257-F) and FLCN deficient (ACHN-2 and UOK257) cell lines were used in this research. Cell viability was detected by clonogenic assay and MTT assay. Flow cytometry and TUNEL assay were used to detect apoptosis. Autophagy in cells was measured by MDC assay, western blot, and transmission electron microscopy. Co-immunoprecipitation, immunofluorescence and western blot experiments were performed to determine the interaction between FLCN protein and BRCA1 A complex. The in vivo experiments were performed in a xenograft model by inoculating UOK 257 in nude mice. RESULTS RCC cells with FLCN protein deficiency were more sensitive to olaparib treatment than the cells with FLCN expression. Olaparib treatment led to more severe autophagy and apoptosis in FLCN deficient ACHN-2 and UOK257 cells compared to the FLCN expressing ACHN and UOK257-F cells. Decreased BRCA1 A complex expression and disruption of DNA repair ability were detected in FLCN-deficient cells, suggesting that FLCN deficiency impaired BRCA1 A complex expression and sensitized cells to PARP inhibitor olaparib. CONCLUSIONS RCC cells deficient in FLCN are sensitive to olaparib treatment due to the impairment of BRCA1 A complex associated DNA repair ability. The results suggest that PARP inhibitor, such as olaparib, may be a potentially effective therapeutic approach for kidney tumors with deficiency of FLCN protein.
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Affiliation(s)
- Qi Zhang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China
| | - Yingkun Xu
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, China
| | - Zhiyu Zhang
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, China
| | - Jianyi Li
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250021, China
| | - Qinghua Xia
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China
| | - Yougen Chen
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China.
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36
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Gao A, Guo M. Epigenetic based synthetic lethal strategies in human cancers. Biomark Res 2020; 8:44. [PMID: 32974031 PMCID: PMC7493427 DOI: 10.1186/s40364-020-00224-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 09/04/2020] [Indexed: 02/08/2023] Open
Abstract
Over the past decades, it is recognized that loss of DNA damage repair (DDR) pathways is an early and frequent event in tumorigenesis, occurring in 40-50% of many cancer types. The basis of synthetic lethality in cancer therapy is DDR deficient cancers dependent on backup DNA repair pathways. In cancer, the concept of synthetic lethality has been extended to pairs of genes, in which inactivation of one by deletion or mutation and pharmacological inhibition of the other leads to death of cancer cells whereas normal cells are spared the effect of the drug. The paradigm study is to induce cell death by inhibiting PARP in BRCA1/2 defective cells. Since the successful application of PARP inhibitor, a growing number of developed DDR inhibitors are ongoing in preclinical and clinical testing, including ATM, ATR, CHK1/2 and WEE1 inhibitors. Combination of PARP inhibitors and other DDR inhibitors, or combination of multiple components of the same pathway may have great potential synthetic lethality efficiency. As epigenetics joins Knudson’s two hit theory, silencing of DDR genes by aberrant epigenetic changes provide new opportunities for synthetic lethal therapy in cancer. Understanding the causative epigenetic changes of loss-of-function has led to the development of novel therapeutic agents in cancer. DDR and related genes were found frequently methylated in human cancers, including BRCA1/2, MGMT, WRN, MLH1, CHFR, P16 and APC. Both genetic and epigenetic alterations may serve as synthetic lethal therapeutic markers.
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Affiliation(s)
- Aiai Gao
- Department of Gastroenterology and Hepatology, Chinese PLA General Hospital, #28 Fuxing Road, Beijing, 100853 China
| | - Mingzhou Guo
- Department of Gastroenterology and Hepatology, Chinese PLA General Hospital, #28 Fuxing Road, Beijing, 100853 China.,Henan Key Laboratory for Esophageal Cancer Research, Zhengzhou University, 40 Daxue Road, Zhengzhou, 450052 Henan China.,State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital, #28 Fuxing Road, Beijing, 100853 China
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37
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Ruscito I, Bellati F, Ray-Coquard I, Mirza MR, du Bois A, Gasparri ML, Costanzi F, De Marco MP, Nuti M, Caserta D, Pignata S, Dorigo O, Sehouli J, Braicu EI. Incorporating Parp-inhibitors in Primary and Recurrent Ovarian Cancer: A Meta-analysis of 12 phase II/III randomized controlled trials. Cancer Treat Rev 2020; 87:102040. [PMID: 32485510 DOI: 10.1016/j.ctrv.2020.102040] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 05/19/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND The second decade of 2000s is witnessing a new ovarian cancer (OC) paradigm shift thanks to the results recently obtained by a new class of targeted agents: the Poly(ADP-ribose)polymerase (PARP)-Inhibitors (PARPi). Aim of this meta-analysis is to analyze available results obtained with PARPi, administered alone or in combination with chemo- and/or target-therapies in terms of efficacy and safety for the treatment of recurrent and primary advanced OC. METHODS On December 2019, all published phase II/III randomized clinical studies were systematically searched using the terms "[Parp-Inhibitor] AND [ovar*]". Twelve phase II/III randomized controlled trials were identified, with a total number of 5171 patients included. RESULTS Results demonstrated that PARPi account for a significant improvement of PFS in both recurrent and primary OC setting, independently from their administration schedule and independently from patients' BRCA mutational status. Moreover, patients harboring a Homologous Recombination Deficiency (HRD) positive testing primary or recurrent OC progress significantly later after PARPi administration/association. Results also reported that PARPi increase the occurrence of severe (G3-G4) anemia. Furthermore, severe fatigue occurred more frequently among patients subjected to PARPi combined with chemotherapy and to PARPi plus Bevacizumab. Finally, a significant increase in severe high blood pressure occurrence was observed when PARPi was added to antiangiogenetics, compared to PARPi alone but a significant decrease in G3-G4 hypertension occurrence was found in PARPi plus bevacizumab users compared to Bevacizumab alone. CONCLUSIONS PARPi are a valid option for the treatment of both primary and relapsed OC patients, with a relative low incidence of severe side effects.
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Affiliation(s)
- Ilary Ruscito
- Gynecology Division, Department of Medical and Surgical Sciences and Translational Medicine, Sant'Andrea University Hospital, Sapienza University of Rome, Via di Grottarossa 1035, 00189 Rome, Italy; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Gynaecology, European Competence Center for Ovarian Cancer, Campus Virchow Clinic, 13353 Berlin, Germany; Laboratory of Tumor Immunology and Cell Therapy Unit, Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy.
| | - Filippo Bellati
- Gynecology Division, Department of Medical and Surgical Sciences and Translational Medicine, Sant'Andrea University Hospital, Sapienza University of Rome, Via di Grottarossa 1035, 00189 Rome, Italy
| | - Isabelle Ray-Coquard
- Oncologie Médicale, Centre Leon Bérard, Univ Lyon, Université Claude Bernard Lyon1, Hesper EA 7425, F - 69003 Lyon, France
| | - Mansoor Raza Mirza
- Nordic Society of Gynaecological Oncology, Copenhagen, Denmark; Department of Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Andreas du Bois
- Department of Gynecology and Gynecologic Oncology, Evang. Kliniken Essen-Mitte, Henricistrasse 92, 45136 Essen, Germany
| | - Maria Luisa Gasparri
- Department of Obstetrics and Gynecology, Università della Svizzera Italiana, Lugano, Switzerland
| | - Flavia Costanzi
- Gynecology Division, Department of Medical and Surgical Sciences and Translational Medicine, Sant'Andrea University Hospital, Sapienza University of Rome, Via di Grottarossa 1035, 00189 Rome, Italy
| | - Maria Paola De Marco
- Gynecology Division, Department of Medical and Surgical Sciences and Translational Medicine, Sant'Andrea University Hospital, Sapienza University of Rome, Via di Grottarossa 1035, 00189 Rome, Italy
| | - Marianna Nuti
- Laboratory of Tumor Immunology and Cell Therapy Unit, Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Donatella Caserta
- Gynecology Division, Department of Medical and Surgical Sciences and Translational Medicine, Sant'Andrea University Hospital, Sapienza University of Rome, Via di Grottarossa 1035, 00189 Rome, Italy
| | - Sandro Pignata
- Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione G. Pascale", IRCCS, Naples, Italy
| | - Oliver Dorigo
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Stanford University School of Medicine, Stanford, CA, USA
| | - Jalid Sehouli
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Gynaecology, European Competence Center for Ovarian Cancer, Campus Virchow Clinic, 13353 Berlin, Germany
| | - Elena Ioana Braicu
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Gynaecology, European Competence Center for Ovarian Cancer, Campus Virchow Clinic, 13353 Berlin, Germany
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Zandarashvili L, Langelier MF, Velagapudi UK, Hancock MA, Steffen JD, Billur R, Hannan ZM, Wicks AJ, Krastev DB, Pettitt SJ, Lord CJ, Talele TT, Pascal JM, Black BE. Structural basis for allosteric PARP-1 retention on DNA breaks. Science 2020; 368:eaax6367. [PMID: 32241924 PMCID: PMC7347020 DOI: 10.1126/science.aax6367] [Citation(s) in RCA: 179] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 12/22/2019] [Accepted: 01/28/2020] [Indexed: 12/12/2022]
Abstract
The success of poly(ADP-ribose) polymerase-1 (PARP-1) inhibitors (PARPi) to treat cancer relates to their ability to trap PARP-1 at the site of a DNA break. Although different forms of PARPi all target the catalytic center of the enzyme, they have variable abilities to trap PARP-1. We found that several structurally distinct PARPi drive PARP-1 allostery to promote release from a DNA break. Other inhibitors drive allostery to retain PARP-1 on a DNA break. Further, we generated a new PARPi compound, converting an allosteric pro-release compound to a pro-retention compound and increasing its ability to kill cancer cells. These developments are pertinent to clinical applications where PARP-1 trapping is either desirable or undesirable.
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Affiliation(s)
- Levani Zandarashvili
- Department of Biochemistry and Biophysics, Penn Center for Genome Integrity, Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Marie-France Langelier
- Département de Biochimie and Médecine Moléculaire, Faculté de Médecine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Uday Kiran Velagapudi
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Mark A Hancock
- SPR-MS Facility, McGill University, Montréal, Quebec, Canada
| | - Jamin D Steffen
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Ramya Billur
- Department of Biochemistry and Biophysics, Penn Center for Genome Integrity, Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Zain M Hannan
- Department of Biochemistry and Biophysics, Penn Center for Genome Integrity, Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Andrew J Wicks
- CRUK Gene Function Laboratory and Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, London SW3 6JB, UK
| | - Dragomir B Krastev
- CRUK Gene Function Laboratory and Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, London SW3 6JB, UK
| | - Stephen J Pettitt
- CRUK Gene Function Laboratory and Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, London SW3 6JB, UK
| | - Christopher J Lord
- CRUK Gene Function Laboratory and Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, London SW3 6JB, UK
| | - Tanaji T Talele
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - John M Pascal
- Département de Biochimie and Médecine Moléculaire, Faculté de Médecine, Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Ben E Black
- Department of Biochemistry and Biophysics, Penn Center for Genome Integrity, Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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Vincent-Salomon A, Bataillon G, Djerroudi L. [Hereditary breast carcinomas pathologist's perspective]. Ann Pathol 2020; 40:78-84. [PMID: 32241645 DOI: 10.1016/j.annpat.2020.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 11/29/2022]
Abstract
Breast cancers occurring in the context of a hereditary mutation of a predisposition gene represent 5 to 10% of all breast cancers, 20 to 25% of which being due to a mutation in the BRCA1 or BRCA2 genes. Authorization to market PARP inhibitors for breast cancer patients with hereditary BRCA1 and 2 mutations has recently been obtained. Given the annual frequency of breast cancer, morphological identification could facilitate the patient care process to limit the search for BRCA1 and 2 mutations to patients whose tumors have very specific characteristics. However, only a few morphological features have been recognized and differ depending on the mutated genes. Breast cancer occurring as part of a mutation in the BRCA1 gene is in 85% of cases of high-grade non-specific type invasive carcinomas with very limited contours, contain numerous lymphocytes in the stroma and are of triple-negative phenotype. Carcinomas associated with mutations in the BRCA2 genes and genes more recently recognized as associated with a risk of development of breast cancer (CHECK2, BMPR1A, BRIP1, PALB2, MUTYH) are most often non-specific invasive carcinomas, although other histological types are possible, grade III, luminal B phenotype. Breast cancer occurring in the context of a constitutional mutation of TP53 occurs in women under 35 years old are of non-specific histological type and with an amplification of HER2 in two thirds of the cases. Those associated with a PTEN mutation are readily of the apocrine type. Finally, very rarely, certain lobular-type breast cancers can occur in the context of a constitutional mutation of the CDH1 gene, which codes for the protein E-cadherin. The morphological and phenotypic characteristics may suggest to the pathologist a carcinoma of the breast occurring in a context of hereditary mutation. However, at the present time the only situations where a morphological sorting makes it possible to accelerate the genetic analysis are those of an invasive carcinoma of non-specific type of triple-negative phenotype in a woman of less than 50 years or that of a diagnosis of HER2 breast cancer amplified in a woman under 31 years of age (Chompret criteria). Family background and personal history are of great importance in the genetic counseling indication decision trees. Unfortunately, to date, no quality antibody has been developed against BRCA1 and 2 to help the pathologist identify hereditary cases. The immunohistochemical analysis of RAD51 could facilitate the identification of tumors possibly sensitive to PARP inhibitors. Progress to identify hereditary cancers is expected thanks to the development of artificial intelligence algorithms from digitized histological slides.
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Affiliation(s)
- Anne Vincent-Salomon
- Inserm U934, département de médecine diagnostique et théranostique, service de pathologie, institut Curie, université Paris sciences lettres, 26, rue d'Ulm, 75005 Paris, France.
| | - Guillaume Bataillon
- Département de médecine diagnostique et théranostique, service de pathologie, institut Curie, université Paris sciences lettres, 26, rue d'Ulm, 75005 Paris, France
| | - Lounes Djerroudi
- Département de médecine diagnostique et théranostique, service de pathologie, institut Curie, université Paris sciences lettres, 26, rue d'Ulm, 75005 Paris, France
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40
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Hernandez AL, Young CD, Bian L, Weigel K, Nolan K, Frederick B, Han G, He G, Devon Trahan G, Rudolph MC, Jones KL, Oweida AJ, Karam SD, Raben D, Wang XJ. PARP Inhibition Enhances Radiotherapy of SMAD4-Deficient Human Head and Neck Squamous Cell Carcinomas in Experimental Models. Clin Cancer Res 2020; 26:3058-3070. [PMID: 32139402 DOI: 10.1158/1078-0432.ccr-19-0514] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 08/06/2019] [Accepted: 03/02/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE SMAD4 loss causes genomic instability and the initiation/progression of head and neck squamous cell carcinoma (HNSCC). Here, we study whether SMAD4 loss sensitizes HNSCCs to olaparib (PARP inhibitor) in combination with radiotherapy (RT). EXPERIMENTAL DESIGN We analyzed HNSCC The Cancer Genome Atlas data for SMAD4 expression in association with FANC/BRCA family gene expression. Human HNSCC cell lines were screened for sensitivity to olaparib. Isogenic HNSCC cell lines were generated to restore or reduce SMAD4 expression and treated with olaparib, radiation, or the combination. HNSCC pretreatment specimens from a phase I trial investigating olaparib were analyzed. RESULTS SMAD4 levels correlated with levels of FANC/BRCA genes in HNSCC. HNSCC cell lines with SMAD4 homozygous deletion were sensitive to olaparib. In vivo, olaparib or RT monotherapy reduced tumor volumes in SMAD4-mutant but not SMAD4-positive tumors. Olaparib with RT dual therapy sustained tumor volume reduction in SMAD4-deficient (mutant or knockdown) xenografts, which exhibited increased DNA damage and cell death compared with vehicle-treated tumors. In vitro, olaparib alone or in combination with radiation caused lower clonogenic survival, more DNA damage-associated cell death, and less proliferation in SMAD4-deficient cells than in SMAD4-positive (endogenous SMAD4 or transduced SMAD4) cells. Applicable to clinic, 5 out of 6 SMAD4-negative HNSCCs and 4 out of 8 SMAD4-positive HNSCCs responded to a standard treatment plus olaparib in a phase I clinical trial, and SMAD4 protein levels inversely correlated with DNA damage. CONCLUSIONS SMAD4 levels are causal in determining sensitivity to PARP inhibition in combination with RT in HNSCCs.
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Affiliation(s)
- Ariel L Hernandez
- Department of Pathology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Christian D Young
- Department of Pathology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Li Bian
- Department of Pathology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Kelsey Weigel
- Department of Pathology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Kyle Nolan
- Department of Pathology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Barbara Frederick
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Gangwen Han
- Department of Pathology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Guanting He
- Department of Pathology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - G Devon Trahan
- Department of Pediatrics, Section of Hematology, Oncology, and Bone Marrow Transplant, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Michael C Rudolph
- Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Kenneth L Jones
- Department of Pediatrics, Section of Hematology, Oncology, and Bone Marrow Transplant, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Ayman J Oweida
- Department of Nuclear Medicine and Radiobiology, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Sana D Karam
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - David Raben
- Department of Radiation Oncology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Xiao-Jing Wang
- Department of Pathology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado. .,Veterans Affairs Medical Center, VA Eastern Colorado Health Care System, Aurora, Colorado
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Gupta M, Iyer R, Fountzilas C. Poly(ADP-Ribose) Polymerase Inhibitors in Pancreatic Cancer: A New Treatment Paradigms and Future Implications. Cancers (Basel) 2019; 11:E1980. [PMID: 31835379 PMCID: PMC6966572 DOI: 10.3390/cancers11121980] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 11/30/2019] [Accepted: 12/06/2019] [Indexed: 12/12/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive malignancy. Most of the patients of PDAC present at later stages of disease and have a five-year survival rate of less than 10%. About 5-10% PDAC cases are hereditary in nature and have DNA damage repair (DDR) mutations such as BRCA 1 and 2. Besides having implications on screening and prevention strategies, these mutations can confer sensitivity to platinum-based therapies and determine eligibility for poly(ADP-ribose) polymerase inhibitors (PARPi). In the presence of DDR mutations and PARPi, the cells are unable to utilize the error-free process of homologous recombination repair, leading to accumulation of double stranded DNA breaks and cell death eventually. Various PARPi are in clinical development in PDAC in different subgroup of patients as monotherapies and in combination with other therapeutics. This review would focus on the mechanism of action of PARPi, history of development in PDAC, resistance mechanisms and future directions.
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Affiliation(s)
- Medhavi Gupta
- Department of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA;
| | - Renuka Iyer
- Department of Medicine/Division of GI Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA;
| | - Christos Fountzilas
- Department of Medicine/Division of GI Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA;
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van der Noll R, Jager A, Ang JE, Marchetti S, Mergui-Roelvink MWJ, Lolkema MP, de Jonge MJA, van der Biessen DA, Brunetto AT, Arkenau HT, Tchakov I, Beijnen JH, de Bono JS, Schellens JHM. Phase I study of continuous olaparib capsule dosing in combination with carboplatin and/or paclitaxel (Part 1). Invest New Drugs 2019; 38:1117-1128. [PMID: 31667659 DOI: 10.1007/s10637-019-00856-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 09/12/2019] [Indexed: 11/26/2022]
Abstract
Background The PARP inhibitor olaparib has shown acceptable toxicity at doses of up to 400 mg twice daily (bid; capsule formulation) with encouraging signs of antitumor activity. Based on its mode of action, olaparib may sensitize tumor cells to DNA-damaging agents. This Phase I trial (NCT00516724) evaluated the safety, pharmacokinetics (PK) and preliminary efficacy of olaparib combined with carboplatin and/or paclitaxel. Methods Patients with advanced solid tumors received olaparib (capsule bid) plus carboplatin (Part A), carboplatin and paclitaxel (Part B), or paclitaxel (Part C). In each part of the study, different drug doses were given to define the most appropriate dose/drug combination to use in further studies. Safety assessments included evaluation of dose-limiting toxicities (DLTs; cycle 1 only), adverse events (AEs) and physical examinations. PK assessments of olaparib, carboplatin and paclitaxel were performed. Tumor responses (RECIST) were assessed every two cycles. Results Fifty-seven patients received treatment. DLTs were reported in two patients (both receiving olaparib 100 mg bid and carboplatin AUC 4; Part A, cohort 2): grade 1 thrombocytopenia with grade 2 neutropenia lasting for 16 days, and grade 2 neutropenia lasting for 7 days. Non-hematologic AEs were predominantly grade 1-2 and included fatigue (70%) and nausea (40%). Bone marrow suppression, mainly neutropenia (51%) and thrombocytopenia (25%), frequently led to dose modifications. Conclusions Olaparib in combination with carboplatin and/or paclitaxel resulted in increased hematologic toxicities, making it challenging to establish a dosing regimen that could be tolerated for multiple cycles without dose modifications.
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Affiliation(s)
- Ruud van der Noll
- Department of Clinical Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands.
| | - Agnes Jager
- Department of Medical Oncology, Erasmus University MC Cancer Institute, PO Box 5201, 3008, AE, Rotterdam, The Netherlands
| | - Joo Ern Ang
- The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research, Downs Road, Sutton, Surrey, SM2 5PT, UK
| | - Serena Marchetti
- Department of Clinical Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Marja W J Mergui-Roelvink
- Department of Clinical Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
| | - Martijn P Lolkema
- Department of Medical Oncology, Erasmus University MC Cancer Institute, PO Box 5201, 3008, AE, Rotterdam, The Netherlands
- The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research, Downs Road, Sutton, Surrey, SM2 5PT, UK
| | - Maja J A de Jonge
- Department of Medical Oncology, Erasmus University MC Cancer Institute, PO Box 5201, 3008, AE, Rotterdam, The Netherlands
| | - Diane A van der Biessen
- Department of Medical Oncology, Erasmus University MC Cancer Institute, PO Box 5201, 3008, AE, Rotterdam, The Netherlands
| | - Andre T Brunetto
- The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research, Downs Road, Sutton, Surrey, SM2 5PT, UK
| | - Hendrik-Tobias Arkenau
- The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research, Downs Road, Sutton, Surrey, SM2 5PT, UK
| | - Ilian Tchakov
- AstraZeneca, Alderley Park, Park Estate, Macclesfield, SK10 4TF, UK
- Eisai, Mosquito Way, Hatfield, AL10 9SN, UK
| | - Jos H Beijnen
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Utrecht Institute of Pharmaceutical Science s (UIPS), Utrecht University, Domplein 29, 3512, JE, Utrecht, The Netherlands
| | - Johann S de Bono
- The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research, Downs Road, Sutton, Surrey, SM2 5PT, UK
| | - Jan H M Schellens
- Department of Clinical Pharmacology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Utrecht Institute of Pharmaceutical Science s (UIPS), Utrecht University, Domplein 29, 3512, JE, Utrecht, The Netherlands
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Fehling SC, Miller AL, Garcia PL, Vance RB, Yoon KJ. The combination of BET and PARP inhibitors is synergistic in models of cholangiocarcinoma. Cancer Lett 2019; 468:48-58. [PMID: 31605774 DOI: 10.1016/j.canlet.2019.10.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/02/2019] [Accepted: 10/04/2019] [Indexed: 12/12/2022]
Abstract
Our previous finding that the BET inhibitor (BETi) JQ1 increases levels of the DNA damage marker γH2AX suggested that JQ1 might enhance the sensitivity of tumor cells to PARP inhibitors (PARPi), which are selectively toxic to cells that harbor relatively high levels of DNA damage. To address this hypothesis, we evaluated the effect of a BETi (JQ1 or I-BET762) combined with a PARPi (olaparib or veliparib) in KKU-055 and KKU-100 cholangiocarcinoma (CCA) cell lines and of JQ1 with olaparib in a xenograft model of CCA. Each combination was more effective than any of the four drugs as single agents. Combination indices ranged from 0.1 to 0.8 at the ED50 for all combinations, indicating synergy and demonstrating that synergy was not limited to a specific combination. Mechanistically, downregulation of BETi molecular targets BRD2 or BRD4 by shRNA sensitized CCA cells to BETi as single agents as well as to the combination of a BETi + a PARPi. Our data indicate that combinations of a BETi with a PARPi merit further evaluation as a promising strategy for CCA.
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Affiliation(s)
- Samuel C Fehling
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Aubrey L Miller
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Patrick L Garcia
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Rebecca B Vance
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Karina J Yoon
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA.
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Guler I, Askan G, Klostergaard J, Sahin IH. Precision medicine for metastatic colorectal cancer: an evolving era. Expert Rev Gastroenterol Hepatol 2019; 13:919-931. [PMID: 31475851 DOI: 10.1080/17474124.2019.1663174] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Introduction: Metastatic colorectal cancer (CRC) remains a dilemma for cancer researchers with an increasing incidence in the younger patient population. Until the last decade, limited therapeutic options were available for metastatic CRC patients leading to relatively poor clinical outcomes.Areas covered: With advances in genome sequencing technology and reductions in the cost of next-generation sequencing, molecular profiling has become more accessible for cancer researchers and clinical investigators, which has furthered our understanding of the molecular behavior of CRC. This progress has recently translated into significant advances in molecular-based therapeutics and led to the development of new target-specific agents in metastatic CRC patients. In this review article, we extensively elaborate on genomic alterations seen in CRC patients including, but not limited to, EGFR, MMR, BRAF, HER2, NTRKs, FGFR, BRCA1/2, PALB2, POLE, and POLD1 genes, all of which are potentially actionable by either an FDA-approved agent or in a clinical trial setting.Expert opinion: We strongly recommend molecular profiling in metastatic CRC patients during the early course of their disease, as this may provide therapeutic and prognostic information that can guide clinicians to practice precision medicine. Patients with potentially actionable genes should be considered for targeting agents based on molecular alterations.
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Affiliation(s)
- Irem Guler
- Department of Medicine, Baskent University School of Medicine, Ankara, Turkey
| | - Gokce Askan
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jim Klostergaard
- Department of Molecular and Cellular Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Ibrahim Halil Sahin
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA, USA
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45
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Bianchi A, Lopez S, Altwerger G, Bellone S, Bonazzoli E, Zammataro L, Manzano A, Manara P, Perrone E, Zeybek B, Han C, Menderes G, Ratner E, Silasi DA, Huang GS, Azodi M, Newberg JY, Pavlick DC, Elvin J, Frampton GM, Schwartz PE, Santin AD. PARP-1 activity (PAR) determines the sensitivity of cervical cancer to olaparib. Gynecol Oncol 2019; 155:144-150. [PMID: 31434613 PMCID: PMC6788971 DOI: 10.1016/j.ygyno.2019.08.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 08/06/2019] [Accepted: 08/08/2019] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Cervical cancer (CC) remains a major health problem worldwide. Poly (adenosine diphosphate [ADP]-ribose) polymerase (PARP) inhibitors (PARPi) have emerged as a promising class of chemotherapeutics in ovarian cancer. We explored the preclinical in vitro and in vivo activity of olaparib against multiple primary whole exome sequenced (WES) CC cells lines and xenografts. METHODS Olaparib cell-cycle, apoptosis, homologous-recombination-deficiency (HRD), PARP trapping and cytotoxicity activity was evaluated against 9 primary CC cell lines in vitro. PARP and PAR expression were analyzed by Western blot assays. Finally, olaparib in vivo antitumor activity was tested against CC xenografts. RESULTS While none of the cell lines demonstrated HRD, three out of 9 (33.3%) primary CC cell lines showed strong PARylation activity and demonstrated high sensitivity to olaparib in vitro treatment (cutoff IC50 values < 2 μM, p = 0.0012). Olaparib suppressed CC cell growth through cell cycle arrest in the G2/M phase and caused apoptosis (p < 0.0001). Olaparib activity in CC involved both PARP enzyme inhibition and trapping. In vivo, olaparib significantly impaired CC xenografts tumor growth (p = 0.0017) and increased overall animal survival (p = 0.008). CONCLUSIONS A subset of CC primary cell lines is highly responsive to olaparib treatment in vitro and in vivo. High level of PARylation correlated with olaparib preclinical activity and may represent a useful biomarker for the identification of CC patients benefitting the most from PARPi.
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Affiliation(s)
- Anna Bianchi
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Salvatore Lopez
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro 88100, Italy
| | - Gary Altwerger
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Stefania Bellone
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Elena Bonazzoli
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Luca Zammataro
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Aranzazu Manzano
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Paola Manara
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Emanuele Perrone
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Women's and Children's Health, "Agostino Gemelli" Foundation University Hospital, Catholic University, Rome, Italy
| | - Burak Zeybek
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Chanhee Han
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Gulden Menderes
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Elena Ratner
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Dan-Arin Silasi
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Gloria S Huang
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Masoud Azodi
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Justin Y Newberg
- Cancer Genomics Research, Foundation Medicine, Cambridge, MA 02141, USA
| | - Dean C Pavlick
- Cancer Genomics Research, Foundation Medicine, Cambridge, MA 02141, USA
| | - Julia Elvin
- Cancer Genomics Research, Foundation Medicine, Cambridge, MA 02141, USA
| | | | - Peter E Schwartz
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Alessandro D Santin
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA.
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Sargazi S, Saravani R, Zavar Reza J, Zarei Jaliani H, Galavi H, Moudi M, Alsadat Abtahi N. Novel Poly(Adenosine Diphosphate-Ribose) Polymerase (PARP) Inhibitor, AZD2461, Down-Regulates VEGF and Induces Apoptosis in Prostate Cancer Cells. IRANIAN BIOMEDICAL JOURNAL 2019; 23. [PMID: 31102368 PMCID: PMC6661129 DOI: 10.29252/.23.5.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Background Prostate cancer (Pca) is a heterogeneous disease, and current treatments are not based on molecular stratification. Poly(adenosine diphosphate [ADP]-ribose) polymerase (PARP) inhibitors have recently been found to be remarkably toxic to cells with defects in homologous recombination, particularly cells with BRCA-mutated backgrounds. Therefore, this preliminary study was designed to evaluate whether PTEN expression status could have an impact on the sensitivity of invasive Pca cells to the PARP inhibitor, AZD2461. Methods MTT viability test, Annexin V‐FITC/propidium iodide double staining, and caspase3 activity assay were used to evaluate the apoptosis and relative expression of PTEN and VEGF in PC-3 and DU145 cell lines using real-time PCR. Results MTT results showed that the inhibitory effects of AZD2461 were higher in PC-3 than DU145 cells (with IC50 of 36.48 and 59.03 µM at 48 hours of treatment, respectively). Flow cytometric analysis also showed the same results. When exposed to 40 µM of AZD2461, PC-3 (38.8%) and DU145 (28%) cells underwent apoptosis (p < 0.05). Treatment of cells by AZD2461 also caused a significant increase in apoptosis through caspase3 activation in both cell lines. VEGF mRNA levels in PC-3 cells significantly decreased compared to adjusted untreated cells (p < 0.05) in all measured times while displaying different alteration patterns in DU145 cells (p < 0.05). Conclusion AZD2461 suppresses the growth of prostate tumor cells since AZD2461 monotherapy could prove to be efficacious, especially against cells not expressing PTEN besides activating the possible apoptosis-independent cell death pathways.
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Affiliation(s)
- Saman Sargazi
- International Campus, Shahid Sadoughi University of Medical Sciences, Yazd, Iran;,Biotechnology Research Center, International Campus, Shahid Sadoughi University of Medical Science, Yazd, Iran
| | - Ramin Saravani
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran;,Cellular and Molecular Research Center of Zahedan University of Medical Sciences, Zahedan, Iran;,Corresponding Authors: Ramin Saravani , Cellular and Molecular Research Center and Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran; Mobile: (+98-915) 5432609; E-mail: . Javad Zavar Reza, Department of Clinical Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran; Mobile.: (+98-912) 5028742; E-mail:
| | - Javad Zavar Reza
- Biotechnology Research Center, International Campus, Shahid Sadoughi University of Medical Science, Yazd, Iran;,Department of Clinical Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran;,Corresponding Authors: Ramin Saravani , Cellular and Molecular Research Center and Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran; Mobile: (+98-915) 5432609; E-mail: . Javad Zavar Reza, Department of Clinical Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran; Mobile.: (+98-912) 5028742; E-mail:
| | - Hossein Zarei Jaliani
- Protein Engineering Laboratory, Department of Medical Genetics, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hamidreza Galavi
- Cellular and Molecular Research Center of Zahedan University of Medical Sciences, Zahedan, Iran;,Clinical Immunology Research Center of Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mahdiyeh Moudi
- Genetics of Non-Communicable Disease Research Center of Zahedan University of Medical Sciences, Zahedan, Iran
| | - Najmeh Alsadat Abtahi
- International Campus, Shahid Sadoughi University of Medical Sciences, Yazd, Iran;,Biotechnology Research Center, International Campus, Shahid Sadoughi University of Medical Science, Yazd, Iran
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47
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Park Y, Chui MH, Suryo Rahmanto Y, Yu ZC, Shamanna RA, Bellani MA, Gaillard S, Ayhan A, Viswanathan A, Seidman MM, Franco S, Leung AKL, Bohr VA, Shih IM, Wang TL. Loss of ARID1A in Tumor Cells Renders Selective Vulnerability to Combined Ionizing Radiation and PARP Inhibitor Therapy. Clin Cancer Res 2019; 25:5584-5594. [PMID: 31196855 DOI: 10.1158/1078-0432.ccr-18-4222] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 04/13/2019] [Accepted: 06/10/2019] [Indexed: 12/22/2022]
Abstract
PURPOSE Somatic inactivating mutations in ARID1A, a component of the SWI/SNF chromatin remodeling complex, are detected in various types of human malignancies. Loss of ARID1A compromises DNA damage repair. The induced DNA damage burden may increase reliance on PARP-dependent DNA repair of cancer cells to maintain genome integrity and render susceptibility to PARP inhibitor therapy.Experimental Design: Isogenic ARID1A-/- and wild-type cell lines were used for assessing DNA damage response, DNA compactness, and profiling global serine/threonine phosphoproteomic in vivo. A panel of inhibitors targeting DNA repair pathways was screened for a synergistic antitumor effect with irradiation in ARID1A-/- tumors. RESULTS ARID1A-deficient endometrial cells exhibit sustained levels in DNA damage response, a result further supported by in vivo phosphoproteomic analysis. Our results show that ARID1A is essential for establishing an open chromatin state upon DNA damage, a process required for recruitment of 53BP1 and RIF1, key mediators of non-homologous end-joining (NHEJ) machinery, to DNA lesions. The inability of ARID1A-/- cells to mount NHEJ repair results in a partial cytotoxic response to radiation. Small-molecule compound screens revealed that PARP inhibitors act synergistically with radiation to potentiate cytotoxicity in ARID1A-/- cells. Combination treatment with low-dose radiation and olaparib greatly improved antitumor efficacy, resulting in long-term remission in mice bearing ARID1A-deficient tumors. CONCLUSIONS ARID1A-deficient cells acquire high sensitivity to PARP inhibition after exposure to exogenously induced DNA breaks such as ionizing radiation. Our findings suggest a novel biologically informed strategy for treating ARID1A-deficient malignancies.
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Affiliation(s)
- Youngran Park
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - M Herman Chui
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Yohan Suryo Rahmanto
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Zheng-Cheng Yu
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Raghavendra A Shamanna
- Laboratory of Molecular Gerontology, National Institute on Aging, NIH, Baltimore, Maryland
| | - Marina A Bellani
- Laboratory of Molecular Gerontology, National Institute on Aging, NIH, Baltimore, Maryland
| | - Stephanie Gaillard
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Gynecology/Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ayse Ayhan
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Pathology, Seirei Mikatahara General Hospital, Hamamatsu, Japan.,Hiroshima University School of Medicine, Hiroshima, Japan
| | - Akila Viswanathan
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Michael M Seidman
- Laboratory of Molecular Gerontology, National Institute on Aging, NIH, Baltimore, Maryland
| | - Sonia Franco
- Department of Gynecology/Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Anthony K L Leung
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Vilhelm A Bohr
- Laboratory of Molecular Gerontology, National Institute on Aging, NIH, Baltimore, Maryland
| | - Ie-Ming Shih
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland. .,Richard W. TeLinde Gynecologic Pathology Research Program, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Tian-Li Wang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland. .,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Richard W. TeLinde Gynecologic Pathology Research Program, Johns Hopkins University School of Medicine, Baltimore, Maryland
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48
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Hernandez AL, Young CD, Wang JH, Wang XJ. Lessons learned from SMAD4 loss in squamous cell carcinomas. Mol Carcinog 2019; 58:1648-1655. [PMID: 31140647 DOI: 10.1002/mc.23049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/30/2019] [Accepted: 05/10/2019] [Indexed: 12/13/2022]
Abstract
SMAD4 is a potent tumor suppressor and a central mediator of the TGFß signaling pathway. SMAD4 genetic loss is frequent in squamous cell carcinomas (SCCs). Reports of SMAD4 expression in SCCs vary significantly possibly due to inter-tumor heterogeneity or technical reasons. SMAD4 loss is an initiation event for SCCs. In tumor epithelial cells, SMAD4 loss causes increased proliferation, decreased apoptosis, and "Brca-like" genomic instability associated with DNA repair defects. SMAD4 loss also plays a role in the expansion of cancer stem cells. Epithelial SMAD4 loss causes overexpression of TGFß that is released into the tumor microenvironment and contributes to SCC progression through proinflammatory and immune evasive mechanisms. SMAD4 loss, while not a direct therapeutic target, is associated with multiple targetable pathways that require further therapeutic studies. Altogether, SMAD4 loss is a potential biomarker in SCCs that should be further studied for its values in prognostic and therapeutic predictions. Such information will potentially guide future biomarker-driven clinical trial designs and improve SCC patient outcomes.
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Affiliation(s)
- Ariel L Hernandez
- Department of Pathology, School of Medicine, University of Colorado, Aurora, Colorado
| | - Christian D Young
- Department of Pathology, School of Medicine, University of Colorado, Aurora, Colorado
| | - Jing H Wang
- Department of Immunology and Microbiology, University of Colorado, Aurora, Colorado.,Department of Biomedical Research, National Jewish Health, Denver, Colorado
| | - Xiao-Jing Wang
- Department of Pathology, School of Medicine, University of Colorado, Aurora, Colorado.,Research Service, Veterans Affairs Medical Center, VA Eastern Colorado Health Care System, Aurora, Colorado
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49
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DNA Repair Gene Expression Adjusted by the PCNA Metagene Predicts Survival in Multiple Cancers. Cancers (Basel) 2019; 11:cancers11040501. [PMID: 30965671 PMCID: PMC6520950 DOI: 10.3390/cancers11040501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 03/16/2019] [Accepted: 03/30/2019] [Indexed: 02/06/2023] Open
Abstract
Removal of the proliferation component of gene expression by proliferating cell nuclear antigen (PCNA) adjustment via statistical methods has been addressed in numerous survival prediction studies for breast cancer and all cancers in the Cancer Genome Atlas (TCGA). These studies indicate that the removal of proliferation in gene expression by PCNA adjustment removes the statistical significance for predicting overall survival (OS) when gene selection is performed on a genome-wide basis. Since cancers become addicted to DNA repair as a result of forced cellular replication, increased oxidation, and repair deficiencies from oncogenic loss or genetic polymorphisms, we hypothesized that PCNA adjustment of DNA repair gene expression does not remove statistical significance for OS prediction. The rationale and importance of this translational hypothesis is that new lists of repair genes which are predictive of OS can be identified to establish new targets for inhibition therapy. A candidate gene approach was employed using TCGA RNA-Seq data for 121 DNA repair genes in 8 molecular pathways to predict OS for 18 cancers. Statistical randomization test results indicate that after PCNA adjustment, OS could be predicted significantly by sets of DNA repair genes for 61% (11/18) of the cancers. These findings suggest that removal of the proliferation signal in expression by PCNA adjustment does not remove statistical significance for predicting OS. In conclusion, it is likely that previous studies on PCNA adjustment and survival were biased because genes identified through a genome-wide approach are strongly co-regulated by proliferation.
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50
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Dellomo AJ, Baer MR, Rassool FV. Partnering with PARP inhibitors in acute myeloid leukemia with FLT3-ITD. Cancer Lett 2019; 454:171-178. [PMID: 30953707 DOI: 10.1016/j.canlet.2019.03.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/26/2019] [Accepted: 03/28/2019] [Indexed: 02/01/2023]
Abstract
Internal tandem duplications within the juxtamembrane domain of fms-like tyrosine kinase 3 (FLT3-ITD) occur in acute myeloid leukemia (AML) cells of 20-25% of patients and are associated with poor treatment outcomes. FLT3 inhibitors have been developed, but have had limited clinical efficacy due to development of resistance, highlighting the need for better understanding of the function of FLT3-ITD and how to target it more effectively using novel combination strategies. Poly (ADP-ribose) polymerase (PARP) inhibitors have shown efficacy in cancers with impaired homologous recombination (HR) due to BRCA mutations, but PARP inhibitor efficacy has not been fully explored in BRCA-proficient cancers, including AML. Recent research has connected inhibition of FLT3-ITD signaling to downregulation of numerous DNA repair proteins, including those involved in HR, and the novel combination with PARP inhibitors induces synthetic lethality in AML. Additionally, PARP inhibitor therapy may also target the highly error-prone alternative non-homologous end-joining (ALT NHEJ) DNA repair pathway in which PARP participates, thereby decreasing genomic instability and development of therapy resistance. Therefore, PARP inhibitors may be attractive therapeutic agents in combination with FLT3 inhibitors in FLT3-ITD AML.
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Affiliation(s)
- Anna J Dellomo
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA; University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, 21201, USA
| | - Maria R Baer
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, 21201, USA; University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, 21201, USA; Veterans Affairs Medical Center, Baltimore, MD, 20201, USA
| | - Feyruz V Rassool
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA; University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, 21201, USA.
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