1
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Brand NR, Yang YW, Ding V, Dutta H, Peto CJ, Lemjabbar-Alaoui H, Jablons DM. Novel dual action PARP and microtubule polymerization inhibitor AMXI-5001 powerfully inhibits growth of esophageal carcinoma both alone and in combination with radiotherapy. Am J Cancer Res 2024; 14:378-389. [PMID: 38323288 PMCID: PMC10839305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 12/27/2023] [Indexed: 02/08/2024] Open
Abstract
Esophageal cancer is one of the leading causes of cancer deaths globally with an incidence that is concentrated in specific hot spots in Eastern Asia, the Middle East, Eastern Africa, and South America. 10-year overall survival for patients treated with standard of care chemoradiation followed by surgical resection is below 40% highlighting the need for novel therapeutics to treat this disease. We assessed the effect of AMXI-5001, a novel small molecule poly ADP-Ribose polymerase (PARP) inhibitor and microtubule polymerization inhibitor on tumor growth inhibition in both in-vitro and in-vivo murine models. We found that AMXI-5001 was the most potent growth inhibitor of 8 out of 9 different esophageal carcinoma cell lines compared to other clinically available PARP inhibitors, Olaparib, Niraparib, Rucaparib, and Talazoparib. We then confirmed the previously described mechanism of action of AMXI-5001 as a PARP-inhibitor and microtubule polymerization inhibitor using both a PARP trapping assay and immunofluorescence. To further assess AMXI-5001's potential as a therapeutic for esophageal carcinoma we evaluated the effect of AMXI-5001 in combination with standard chemotherapy agents, Cisplatin and 5 Fluorouracil. We showed that AMXI-5001 synergistically inhibits growth in KYSE-70, a squamous esophageal cell line in combination with these drugs. In addition, we found that AMXI-5001 was an effective radiosensitizer, and squamous esophageal carcinoma cell lines treated 24 hours prior to external beam radiation showed significantly more growth inhibition compared to controls. Finally, we assessed the effect of AMXI-5001 monotherapy and in combination with radiotherapy in a xenograft mouse model implanted with subcutaneous KYSE-70 cells. Compared to vehicle control, and those treated with either AMXI-5001 alone or radiation alone, mice treated with both AMXI-5001 and radiation had significant tumor response. In conclusion, AMXI-5001 is an orally bioavailable dual-action PARP and microtubule polymerization inhibitor that holds promise in the treatment of esophageal carcinoma.
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Affiliation(s)
- Nathan R Brand
- Department of Surgery, University of CaliforniaSan Francisco, California, USA
| | - Yi-Wei Yang
- Thoracic Oncology Laboratory, University of CaliforniaSan Francisco, California, USA
| | - Vivianne Ding
- Thoracic Oncology Laboratory, University of CaliforniaSan Francisco, California, USA
| | - Hannah Dutta
- Thoracic Oncology Laboratory, University of CaliforniaSan Francisco, California, USA
| | - Csaba J Peto
- Thoracic Oncology Laboratory, University of CaliforniaSan Francisco, California, USA
| | | | - David M Jablons
- Department of Surgery, University of CaliforniaSan Francisco, California, USA
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2
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Therapeutic Potential of PARP Inhibitors in the Treatment of Gastrointestinal Cancers. Biomedicines 2021; 9:biomedicines9081024. [PMID: 34440228 PMCID: PMC8392860 DOI: 10.3390/biomedicines9081024] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/05/2021] [Accepted: 08/10/2021] [Indexed: 12/20/2022] Open
Abstract
Gastrointestinal (GI) malignancies are a major global health burden, with high mortality rates. The identification of novel therapeutic strategies is crucial to improve treatment and survival of patients. The poly (ADP-ribose) polymerase (PARP) enzymes involved in the DNA damage response (DDR) play major roles in the development, progression and treatment response of cancer, with PARP inhibitors (PARPi) currently used in the clinic for breast, ovarian, fallopian, primary peritoneal, pancreatic and prostate cancers with deficiencies in homologous recombination (HR) DNA repair. This article examines the current evidence for the role of the DDR PARP enzymes (PARP1, 2, 3 and 4) in the development, progression and treatment response of GI cancers. Furthermore, we discuss the role of HR status as a predictive biomarker of PARPi efficacy in GI cancer patients and examine the pre-clinical and clinical evidence for PARPi and cytotoxic therapy combination strategies in GI cancer. We also include an analysis of the genomic and transcriptomic landscape of the DDR PARP genes and key HR genes (BRCA1, BRCA2, ATM, RAD51, MRE11, PALB2) in GI patient tumours (n = 1744) using publicly available datasets to identify patients that may benefit from PARPi therapeutic approaches.
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3
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Unsymmetric Cisplatin-Based Pt(IV) Conjugates Containing a PARP-1 Inhibitor Pharmacophore Tested on Malignant Pleural Mesothelioma Cell Lines. Molecules 2021; 26:molecules26164740. [PMID: 34443328 PMCID: PMC8402032 DOI: 10.3390/molecules26164740] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/01/2021] [Accepted: 08/03/2021] [Indexed: 11/24/2022] Open
Abstract
Cisplatin is widely employed as a first-line chemotherapeutic agent for many solid tumors, including malignant pleural mesothelioma (MPM). However, its clinical use is limited by heavy side effects and acquired resistance, the latter being mainly related to enhanced DNA repair. Many clinical trials using combinations of platinum drugs and PARP-1 inhibitors (PARPis) have been carried out, with the hope that such combinations might lead to improved therapeutic efficacy against tumors. Here, the synthesis and efficacy in reducing MPM cell viability of four cisplatin-based Pt(IV) prodrugs containing the PARPi 3-aminobenzamide (3-ABA) fragment are described. The most promising conjugate is more effective than cisplatin or cisplatin/3-ABA combination, administered in equimolar doses, in inhibiting PARP-1 activity and inducing apoptosis in BRCA1/2 wild type MPM cells, grown as monolayer or as multicellular spheroids.
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4
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Gao C, Jin G, Forbes E, Mangala LS, Wang Y, Rodriguez-Aguayo C, Amero P, Bayraktar E, Yan Y, Lopez-Berestein G, Broaddus RR, Sood AK, Xue F, Zhang W. Inactivating Mutations of the IK Gene Weaken Ku80/Ku70-Mediated DNA Repair and Sensitize Endometrial Cancer to Chemotherapy. Cancers (Basel) 2021; 13:2487. [PMID: 34065218 PMCID: PMC8160817 DOI: 10.3390/cancers13102487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/05/2021] [Accepted: 05/17/2021] [Indexed: 11/17/2022] Open
Abstract
IK is a mitotic factor that promotes cell cycle progression. Our previous investigation of 271 endometrial cancer (EC) samples from the Cancer Genome Atlas (TCGA) dataset showed IK somatic mutations were enriched in a cluster of patients with high-grade and high-stage cancers, and this group had longer survival. This study provides insight into how IK somatic mutations contribute to EC pathophysiology. We analyzed the somatic mutational landscape of IK gene in 547 EC patients using expanded TCGA dataset. Co-immunoprecipitation and mass spectrometry were used to identify protein interactions. In vitro and in vivo experiments were used to evaluate IK's role in EC. The patients with IK-inactivating mutations had longer survival during 10-year follow-up. Frameshift and stop-gain were common mutations and were associated with decreased IK expression. IK knockdown led to enrichment of G2/M phase cells, inactivation of DNA repair signaling mediated by heterodimerization of Ku80 and Ku70, and sensitization of EC cells to cisplatin treatment. IK/Ku80 mutations were accompanied by higher mutation rates and associated with significantly better overall survival. Inactivating mutations of IK gene and loss of IK protein expression were associated with weakened Ku80/Ku70-mediated DNA repair, increased mutation burden, and better response to chemotherapy in patients with EC.
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Affiliation(s)
- Chao Gao
- Department of Cancer Biology, Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC 27157, USA; (C.G.); (G.J.); (E.F.)
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin 300052, China; (Y.W.); (Y.Y.)
- Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin 300052, China
| | - Guangxu Jin
- Department of Cancer Biology, Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC 27157, USA; (C.G.); (G.J.); (E.F.)
| | - Elizabeth Forbes
- Department of Cancer Biology, Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC 27157, USA; (C.G.); (G.J.); (E.F.)
| | - Lingegowda S. Mangala
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA; (L.S.M.); (E.B.); (A.K.S.)
- Center for RNA Interference and Non-Coding RNAs, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA; (C.R.-A.); (G.L.-B.)
| | - Yingmei Wang
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin 300052, China; (Y.W.); (Y.Y.)
- Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin 300052, China
| | - Cristian Rodriguez-Aguayo
- Center for RNA Interference and Non-Coding RNAs, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA; (C.R.-A.); (G.L.-B.)
- Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA;
| | - Paola Amero
- Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA;
| | - Emine Bayraktar
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA; (L.S.M.); (E.B.); (A.K.S.)
- Center for RNA Interference and Non-Coding RNAs, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA; (C.R.-A.); (G.L.-B.)
| | - Ye Yan
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin 300052, China; (Y.W.); (Y.Y.)
- Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin 300052, China
| | - Gabriel Lopez-Berestein
- Center for RNA Interference and Non-Coding RNAs, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA; (C.R.-A.); (G.L.-B.)
- Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA;
| | - Russell R. Broaddus
- Department of Pathology & Laboratory Medicine, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA;
| | - Anil K. Sood
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA; (L.S.M.); (E.B.); (A.K.S.)
- Center for RNA Interference and Non-Coding RNAs, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA; (C.R.-A.); (G.L.-B.)
| | - Fengxia Xue
- Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin 300052, China; (Y.W.); (Y.Y.)
- Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin 300052, China
| | - Wei Zhang
- Department of Cancer Biology, Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC 27157, USA; (C.G.); (G.J.); (E.F.)
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Moutafi M, Economopoulou P, Rimm D, Psyrri A. PARP inhibitors in head and neck cancer: Molecular mechanisms, preclinical and clinical data. Oral Oncol 2021; 117:105292. [PMID: 33862558 DOI: 10.1016/j.oraloncology.2021.105292] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 12/13/2022]
Abstract
Poly (ADP-ribose) polymerase (PARP) inhibitors (PARPi) have revolutionized the treatment landscape in several cancers. PARPi increase DNA damage particularly in tumors with underlying defects in DNA repair. In addition to PARPi-induced DNA damage, PARPi enhance immune priming and induce adaptive upregulation of programmed death ligand 1 (PD-L1) expression. Patients with head and neck squamous cell carcinoma (HNSCC) are characterized by aberrant DNA repair pathways, including nucleotide excision repair (NER), base excision repair (BER) and DNA double-strand breaks (DSBs) repair and these deregulated repair mechanisms are implicated in both the pathogenesis of the disease and the outcome of therapy. Cisplatin represents the cornerstone of treatment of HNSCC and cisplatin resistance impedes successful treatment outcomes. To this end, research strategies that are testing modulation of cisplatin sensitivity by PARPi are of particular interest. Moreover, given the immune modulating effects of PARPi and the recent approval of Programmed Cell Death- 1 (PD-1) checkpoint inhibitors in HNSCC, the design of trials combining PARPi and PD-1 checkpoint inhibitors represent a rational research strategy. In this review, we summarize data supporting the integration of PARP inhibitors into HNSCC therapeutic strategy.
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Affiliation(s)
- Myrto Moutafi
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA; Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Panagiota Economopoulou
- Section of Medical Oncology, 2(nd) Department of Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, Attikon University Hospital, Athens, Greece
| | - David Rimm
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA; Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Amanda Psyrri
- Section of Medical Oncology, 2(nd) Department of Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, Attikon University Hospital, Athens, Greece
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6
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Sethy C, Kundu CN. 5-Fluorouracil (5-FU) resistance and the new strategy to enhance the sensitivity against cancer: Implication of DNA repair inhibition. Biomed Pharmacother 2021; 137:111285. [PMID: 33485118 DOI: 10.1016/j.biopha.2021.111285] [Citation(s) in RCA: 175] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/05/2021] [Accepted: 01/13/2021] [Indexed: 12/13/2022] Open
Abstract
5-Fluorouracil (5-FU) has been an important anti-cancer drug to date. With an increase in the knowledge of its mechanism of action, various treatment modalities have been developed over the past few decades to increase its anti-cancer activity. But drug resistance has greatly affected the clinical use of 5-FU. Overcoming this chemoresistance is a challenge due to the presence of cancer stem cells like cells, cancer recurrence, metastasis, and angiogenesis. In this review, we have systematically discussed the mechanism of 5-FU resistance and advent strategies to increase the sensitivity of 5-FU therapy including resistance reversal. Special emphasis has been given to the cancer stem cells (CSCs) mediated 5-FU chemoresistance and its reversal process by different approaches including the DNA repair inhibition process.
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Affiliation(s)
- Chinmayee Sethy
- Cancer Biology Division, School of Biotechnology, Kalinga Institute of Industrial Technology, Campus-11, Patia, Bhubaneswar, Odisha, 751024, India
| | - Chanakya Nath Kundu
- Cancer Biology Division, School of Biotechnology, Kalinga Institute of Industrial Technology, Campus-11, Patia, Bhubaneswar, Odisha, 751024, India.
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7
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Sun C, Cao W, Qiu C, Li C, Dongol S, Zhang Z, Dong R, Song K, Yang X, Zhang Q, Kong B. MiR-509-3 augments the synthetic lethality of PARPi by regulating HR repair in PDX model of HGSOC. J Hematol Oncol 2020; 13:9. [PMID: 32005272 PMCID: PMC6995078 DOI: 10.1186/s13045-020-0844-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 01/15/2020] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND PARP inhibitors have been the most promising target drugs with widely proven benefits among ovarian cancer patients. Although platinum-response, HR-related genes, or HRD genomic scar detection are acceptably used in assessment of Olaparib response, there are still evident limitations in the present approaches. Therefore, we aim to investigate more accurate approaches to predict Olaparib sensitivity and effective synergistic treatment strategies. METHODS We probed two databases (TCGA and Qilu Hospital) in order to quest novel miRNAs associated with platinum-sensitivity or HR-related genes. Cellular experiments in vitro or in vivo and PDX models were utilized to validate their role in tumor suppression and Olaparib sensitizing. Furthermore, HR gene mutation was analyzed through WES to explore the relation between HR gene mutation and Olaparib response. RESULTS High miR-509-3 expression indicated better response to platinum and longer progression-free and overall survival in two independent ovarian cancer patient cohorts (high vs. low miR-509-3 expression; PFS: TCGA P < 0.05, Qilu P < 0.05; OS: TCGA P < 0.05, Qilu P < 0.01). MiR-509-3 could impair the proliferation, migration, and invasion ability but enhance the sensitivity to Olaparib of ovarian cancer cell in vitro and in vivo by directly targeting HMGA2 and RAD51. In two PDX cases (PDX1 and PDX9), miR-509-3 could significantly increase the sensitivity to Olaparib along with the decrease of RAD51 positive rate (mean tumor weight NC + Olaparib vs. miR-509 + Olaparib; PDX1 P < 0.05, PDX9 P < 0.05). Additionally, in PDX8, miR-509-3 treatment dramatically reversed the Olaparib insensitivity (P < 0.05) by downregulating RAD51 expression. RAD51 functional detection revealed that all Olaparib sensitive cases exhibited low RAD51 positive rate (lesser than 50%) in treated groups. Furthermore, among the four HR gene mutation patients, three harbored HR core gene mutation and were sensitive to Olaparib while the remaining one with non-HR core gene mutation did not respond well to Olaparib. CONCLUSIONS MiR-509-3 can sensitize ovarian cancer cells to Olaparib by impeding HR, which makes it a potential target in PARPi synergistic treatment. HR core gene analysis and RAD51 functional detection are prospectively feasible in prediction of PARPi response.
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Affiliation(s)
- Chenggong Sun
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Ji'nan, Shandong, 250012, People's Republic of China.,Gynecology Oncology Key Laboratory, Qilu Hospital, Shandong University, Ji'nan, Shandong, 250012, People's Republic of China
| | - Wenyu Cao
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Ji'nan, Shandong, 250012, People's Republic of China.,Gynecology Oncology Key Laboratory, Qilu Hospital, Shandong University, Ji'nan, Shandong, 250012, People's Republic of China
| | - Chunping Qiu
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Ji'nan, Shandong, 250012, People's Republic of China.,Gynecology Oncology Key Laboratory, Qilu Hospital, Shandong University, Ji'nan, Shandong, 250012, People's Republic of China
| | - Chengcheng Li
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Ji'nan, Shandong, 250012, People's Republic of China.,Gynecology Oncology Key Laboratory, Qilu Hospital, Shandong University, Ji'nan, Shandong, 250012, People's Republic of China
| | - Samina Dongol
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Ji'nan, Shandong, 250012, People's Republic of China.,Gynecology Oncology Key Laboratory, Qilu Hospital, Shandong University, Ji'nan, Shandong, 250012, People's Republic of China
| | - Zhiwei Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Ji'nan, Shandong, 250012, People's Republic of China.,Gynecology Oncology Key Laboratory, Qilu Hospital, Shandong University, Ji'nan, Shandong, 250012, People's Republic of China
| | - Ruifen Dong
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Ji'nan, Shandong, 250012, People's Republic of China.,Gynecology Oncology Key Laboratory, Qilu Hospital, Shandong University, Ji'nan, Shandong, 250012, People's Republic of China
| | - Kun Song
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Ji'nan, Shandong, 250012, People's Republic of China.,Gynecology Oncology Key Laboratory, Qilu Hospital, Shandong University, Ji'nan, Shandong, 250012, People's Republic of China
| | - Xingsheng Yang
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Ji'nan, Shandong, 250012, People's Republic of China.,Gynecology Oncology Key Laboratory, Qilu Hospital, Shandong University, Ji'nan, Shandong, 250012, People's Republic of China
| | - Qing Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Ji'nan, Shandong, 250012, People's Republic of China. .,Gynecology Oncology Key Laboratory, Qilu Hospital, Shandong University, Ji'nan, Shandong, 250012, People's Republic of China.
| | - Beihua Kong
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, 107 West Wenhua Road, Ji'nan, Shandong, 250012, People's Republic of China. .,Gynecology Oncology Key Laboratory, Qilu Hospital, Shandong University, Ji'nan, Shandong, 250012, People's Republic of China.
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8
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Shi L, Sun J, Kinomura A, Fukuto A, Horikoshi Y, Tashiro S. Matrin3 promotes homologous recombinational repair by regulation of RAD51. J Biochem 2019; 166:343-351. [PMID: 31119278 DOI: 10.1093/jb/mvz041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 05/15/2019] [Indexed: 01/19/2023] Open
Abstract
Matrin3 is a highly conserved inner nuclear matrix protein involved in multiple stages of RNA metabolism. Although Matrin3 may also play a role in DNA repair, its precise roles have remained unclear. In this study, we showed that the depletion of Matrin3 led to decreased homologous recombination (HR) efficiency and increased radiation sensitivity of cells. Matrin3-depleted cells showed impaired DNA damage-dependent focus formation of RAD51, a key protein in HR. These findings suggest that Matrin3 promotes HR by regulating RAD51.
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Affiliation(s)
- Lin Shi
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine
| | - Jiying Sun
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine
| | - Aiko Kinomura
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine
| | - Atsuhiko Fukuto
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine
- Department of Ophthalmology and Visual Science, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yasunori Horikoshi
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine
| | - Satoshi Tashiro
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine
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9
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Gao X, Wang J, Li M, Wang J, Lv J, Zhang L, Sun C, Ji J, Yang W, Zhao Z, Mao W. Berberine attenuates XRCC1-mediated base excision repair and sensitizes breast cancer cells to the chemotherapeutic drugs. J Cell Mol Med 2019; 23:6797-6804. [PMID: 31338966 PMCID: PMC6787507 DOI: 10.1111/jcmm.14560] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/21/2019] [Accepted: 07/05/2019] [Indexed: 12/21/2022] Open
Abstract
Berberine (BBR) is a natural isoquinoline alkaloid, which is used in traditional medicine for its anti‐microbial, anti‐protozoal, anti‐diarrhoeal activities. Berberine interacts with DNA and displays anti‐cancer activities, yet its effects on cellular DNA repair and on synthetic treatments with chemotherapeutic drugs remain unclear. In this study, we investigated the effects of BBR on DNA repair and on sensitization of breast cancer cells to different types of DNA damage anti‐tumoural drugs. We found BBR arrested cells in the cell cycle S phase and induced DNA breaks. Cell growth analysis showed BBR sensitized MDA‐MB‐231 cells to cisplatin, camptothecin and methyl methanesulfonate; however, BBR had no synergistic effects with hydroxurea and olaparib. These results suggest BBR only affects specific DNA repair pathways. Western blot showed BBR down‐regulated XRCC1 expressions, and the rescued XRCC1 recovered the resistance of cancer cells to BBR. Therefore, we conclude that BBR interferes with XRCC1‐mediated base excision repair to sensitize cancer cells to chemotherapeutic drugs. These finding can contribute to understanding the effects of BBR on cellular DNA repair and the clinical employment of BBR in treatment of breast cancer.
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Affiliation(s)
- Xingjie Gao
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Jing Wang
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Meiqi Li
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Jia Wang
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Jian Lv
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Lu Zhang
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Caifeng Sun
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Jiamei Ji
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Wenbo Yang
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Zinan Zhao
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
| | - Weifeng Mao
- Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, Dalian, China
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10
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Cseh AM, Fabian Z, Quintana-Cabrera R, Szabo A, Eros K, Soriano ME, Gallyas F, Scorrano L, Sumegi B. PARP Inhibitor PJ34 Protects Mitochondria and Induces DNA-Damage Mediated Apoptosis in Combination With Cisplatin or Temozolomide in B16F10 Melanoma Cells. Front Physiol 2019; 10:538. [PMID: 31133874 PMCID: PMC6514236 DOI: 10.3389/fphys.2019.00538] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 04/15/2019] [Indexed: 12/24/2022] Open
Abstract
PARP-1 inhibition has recently been employed in both mono- and combination therapies in various malignancies including melanoma with both promising and contradicting results reported. Although deeper understanding of the underlying molecular mechanisms may help improving clinical modalities, the complex cellular effects of PARP inhibitors make disentangling of the mechanisms involved in combination therapies difficult. Here, we used two cytostatic agents used in melanoma therapies in combination with PARP inhibition to have an insight into cellular events using the B16F10 melanoma model. We found that, when used in combination with cisplatin or temozolomide, pharmacologic blockade of PARP-1 by PJ34 augmented the DNA-damaging and cytotoxic effects of both alkylating compounds. Interestingly, however, this synergism unfolds relatively slowly and is preceded by molecular events that are traditionally believed to support cell survival including the stabilization of mitochondrial membrane potential and morphology. Our data indicate that the PARP inhibitor PJ34 has, apparently, opposing effects on the mitochondrial structure and cell survival. While, initially, it stimulates mitochondrial fusion and hyperpolarization, hallmarks of mitochondrial protection, it enhances the cytotoxic effects of alkylating agents at later stages. These findings may contribute to the optimization of PARP inhibitor-based antineoplastic modalities.
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Affiliation(s)
- Anna Maria Cseh
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary.,Department of Biology, University of Padova, Padua, Italy
| | - Zsolt Fabian
- Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Ruben Quintana-Cabrera
- Institute of Functional Biology and Genomics, University of Salamanca, Consejo Superior de Investigaciones Científicas, Salamanca, Spain.,Institute of Biomedical Research of Salamanca, University Hospital of Salamanca, University of Salamanca, Consejo Superior de Investigaciones Científicas, Salamanca, Spain.,CIBERFES, Instituto de Salud Carlos III, Madrid, Spain
| | - Aliz Szabo
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary.,Nuclear-Mitochondrial Interactions Research Group, Hungarian Academy of Sciences, Budapest, Hungary
| | - Krisztian Eros
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary.,Nuclear-Mitochondrial Interactions Research Group, Hungarian Academy of Sciences, Budapest, Hungary.,Szentagothai Research Centre, University of Pécs, Pécs, Hungary
| | - Maria Eugenia Soriano
- Department of Biology, University of Padova, Padua, Italy.,Venetian Institute of Molecular Medicine, Padua, Italy
| | - Ferenc Gallyas
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary.,Nuclear-Mitochondrial Interactions Research Group, Hungarian Academy of Sciences, Budapest, Hungary.,Szentagothai Research Centre, University of Pécs, Pécs, Hungary
| | - Luca Scorrano
- Department of Biology, University of Padova, Padua, Italy.,Venetian Institute of Molecular Medicine, Padua, Italy
| | - Balazs Sumegi
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary.,Nuclear-Mitochondrial Interactions Research Group, Hungarian Academy of Sciences, Budapest, Hungary.,Szentagothai Research Centre, University of Pécs, Pécs, Hungary
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11
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Liu X, Deng Y, Xu Y, Jin W, Li H. MicroRNA-223 protects neonatal rat cardiomyocytes and H9c2 cells from hypoxia-induced apoptosis and excessive autophagy via the Akt/mTOR pathway by targeting PARP-1. J Mol Cell Cardiol 2018; 118:133-146. [PMID: 29608885 DOI: 10.1016/j.yjmcc.2018.03.018] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 03/17/2018] [Accepted: 03/27/2018] [Indexed: 01/15/2023]
Abstract
Myocardial infarction (MI), characterized by interruption of blood and oxygen to myocardium, is a common yet fatal cardiovascular event that causes progressive damage to myocardial tissue and eventually leads to heart failure. Previous studies have shown increased expression of microRNA-223 (miR-223) in infarcted myocardial tissues of humans and in rat models of MI. However, the role of miR-223 in cell survival during MI has not been elucidated. Thus, we aimed to investigate whether miR-223 participates in the regulation of cardiac ischemia-induced injury and to elucidate the underlying mechanisms of this process. qRT-PCR revealed that miR-223 expression levels are significantly upregulated in the myocardial tissues of rats with post-MI heart failure and in hypoxia-treated neonatal rat cardiomyocytes (NRCMs) and H9c2 cells, which indicates that miR-223 may be associated with chronic ischemia. We also transfected NRCMs and H9c2 cells with miR-223 mimics or inhibitors in vitro, and the results revealed that increasing miR-223 expression protected cells from hypoxia-induced apoptosis and excessive autophagy, whereas decreasing miR-223 expression had contrasting effects. Further exploration of the mechanism showed that poly(ADP-ribose) polymerase 1 (PARP-1) is a target gene of miR-223 and that silencing PARP-1 prevented hypoxia-induced cell injury; additionally, silencing PARP-1 blocked the aggravated impact of miR-223 inhibitors. Thus, PARP-1 mediates the protective effects of miR-223 in hypoxia-treated cardiomyocytes. We also investigated the involvement of the Akt/mTOR pathway in the above phenomena. We found that miR-223 overexpression and PARP-1 silencing positively regulated the Akt/mTOR pathway and that treating cells with NVP-BEZ235 (BEZ235), a novel dual Akt/mTOR inhibitor, could reverse the inhibitory effects of both the miR-223 mimics and PARP-1 siRNA on hypoxia-induced apoptosis and autophagy. Taken together, our findings showed that miR-223 protects NRCMs and H9c2 cells from hypoxia-induced apoptosis and excessive autophagy via the Akt/mTOR pathway by targeting PARP-1; thus, miR-223 may be a potential target in the treatment of MI in the future.
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Affiliation(s)
- Xiaoxiao Liu
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yunfei Deng
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yifeng Xu
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Jin
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Hongli Li
- Department of Cardiology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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12
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Poly ADP-ribose polymerase inhibition suppresses cisplatin toxicity in chronic myeloid leukemia cells. Anticancer Drugs 2017; 28:316-321. [PMID: 28207569 DOI: 10.1097/cad.0000000000000467] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cancer cells may acquire drug resistance by activating DNA repair signaling. Poly ADP-ribose polymerase (PARP) plays an important role in DNA repair and it is overexpressed in many cancers including chronic myeloid leukemia (CML). PARP inhibitors have been used either alone or with other drugs to augment cancer cell death. However, whether PARP inhibitors may also augment cell death induced by chemotherapeutic agents in CML cells has not been studied. K562 cells with or without PARP-1 knockdown were treated with cisplatin alone or together with olaparib. The cell death was investigated by propidium iodide staining and apoptosis-related proteins were detected by western blotting. Olaparib suppressed cisplatin-induced cell death in K562 and MEG01 cells. Moreover, PARP-1 knockdown also attenuated cisplatin toxicity in CML cells. Inhibition of PARP decreased cisplatin toxicity by attenuating caspase-3 and caspase-9 activity. These results indicated that the toxicity of cisplatin in CML cells requires PARP activity. Therefore, PARP inhibitors may not be useful with DNA-damaging agents such as cisplatin in CML treatment.
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13
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Yamamoto M, Yamasaki M, Tsukao Y, Tanaka K, Miyazaki Y, Makino T, Takahashi T, Kurokawa Y, Nakajima K, Takiguchi S, Mori M, Doki Y. Poly (ADP-ribose) polymerase-1 inhibition decreases proliferation through G2/M arrest in esophageal squamous cell carcinoma. Oncol Lett 2017; 14:1581-1587. [PMID: 28789382 PMCID: PMC5529935 DOI: 10.3892/ol.2017.6334] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 05/11/2017] [Indexed: 11/23/2022] Open
Abstract
Poly (ADP-ribose) polymerase-1 (PARP1) plays a vital role in DNA repair and is expected to be an effective target in various malignancies. The aim of the present study was to investigate the clinical and biological significance of PARP1 expression in esophageal squamous cell carcinoma (ESCC). Immunohistochemical (IHC) staining was used to examine the association between PARP1 expression and the clinicopathological features of 86 patients with ESCC. The antitumor effect of small interfering RNA against PARP1 (siPARP1) was examined in a proliferation assay, and the mechanisms of this effect were investigated using western blot analysis and cell cycle assays. Cox multivariate analysis revealed that high expression of PARP1 in IHC staining was a statistically significant independent prognostic factor of poor overall survival (OS). The adjusted hazard ratio for OS in the group with high expression of PARP1 was 2.39 (95% confidence interval, 1.29–4.44; P=0.0051). In vitro assays showed that siPARP1 significantly decreased proliferation through G2/M arrest. Furthermore, western blot analysis showed that PARP1 was associated with the ataxia telangiectasia mutated-checkpoint kinase 2-cell division control 25c pathway. The present study suggests that PARP1 expression has a critical role in ESCC progression, and may be a clinical therapeutic target.
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Affiliation(s)
- Masaaki Yamamoto
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Makoto Yamasaki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yukiko Tsukao
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Koji Tanaka
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yasuhiro Miyazaki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Tomoki Makino
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Tsuyoshi Takahashi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yukinori Kurokawa
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Kiyokazu Nakajima
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Shuji Takiguchi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Masaki Mori
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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14
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Mini E, Landini I, Lucarini L, Lapucci A, Napoli C, Perrone G, Tassi R, Masini E, Moroni F, Nobili S. The Inhibitory Effects of HYDAMTIQ, a Novel PARP Inhibitor, on Growth in Human Tumor Cell Lines With Defective DNA Damage Response Pathways. Oncol Res 2017; 25:1441-1451. [PMID: 28429680 PMCID: PMC7841208 DOI: 10.3727/096504017x14926854178616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The poly(ADP-ribose) polymerase (PARP) enzymes play a key role in the regulation of cellular processes (e.g., DNA damage repair, genomic stability). It has been shown that PARP inhibitors (PARPIs) are selectively cytotoxic against cells having dysfunctions in genes involved in DNA repair mechanisms (synthetic lethality). Drug-induced PARP inhibition potentiates the activity of anticancer drugs such as 5-fluorouracil in enhancing DNA damage, whose repair involves PARP-1 activity. The aim of this study was to evaluate the inhibitory effects of a novel PARPI, HYDAMTIQ, on growth in human tumor cell lines characterized by different features with regard to DNA damage response pathways (BRCA mutational status, microsatellite status, and ATM expression level) and degree of sensitivity/resistance to 5-fluorouracil. HYDAMTIQ showed a more potent inhibitory effect on cell growth in a BRCA2 mutant cell line (CAPAN-1) compared with wild-type cells (C2-6, C2-12, and C2-14 CAPAN-1 clones, and MCF-7). No statistically significant difference was observed after HYDAMTIQ exposure between cells having a different MS status or a different MRE11 mutational status. HYDAMTIQ induced greater antiproliferative effects in SW620 cells expressing a low level of ATM than in H630 cells expressing a high level of ATM. Finally, the combination of HYDAMTIQ and 5-fluorouracil exerted a synergistic effect on the inhibition of SW620 cell growth and an antagonistic effect on that of H630 cell growth. Our results show that the novel PARP inhibitor HYDAMTIQ potently inhibits the growth of human tumor cells with defective DNA damage response pathways and exerts synergistic cytotoxicity in combination with 5-fluorouracil. These data provide relevant examples of synthetic lethality and evidence for further development of this novel PARPI.
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15
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Xiao M, Cai J, Cai L, Jia J, Xie L, Zhu Y, Huang B, Jin D, Wang Z. Let-7e sensitizes epithelial ovarian cancer to cisplatin through repressing DNA double strand break repair. J Ovarian Res 2017; 10:24. [PMID: 28376831 PMCID: PMC5379542 DOI: 10.1186/s13048-017-0321-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 03/28/2017] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Resistance to platinum-based chemotherapy remains a great challenge for ovarian cancer treatment. The human let-7 family contains 13 members located on nine different chromosomes, and most members have been implicated in the modulation of drug sensitivity in cancers. Our previous study showed that deregulation of let-7e in epithelial ovarian cancer (EOC) promoted the development of resistance to cisplatin. In the present study, we aimed to investigate the underlying mechanism and further evaluate the clinical value of let-7e in predicting chemo-response and prognosis in EOC. RESULTS In situ hybridization assays revealed a significantly decreased expression of let-7e in chemo-resistant EOC tissues compared with chemo-sensitive cases. Transfection with let-7e agomir sensitized EOC cells to cisplatin, down-regulated BRCA1 and Rad51 expression, and repressed the repair of cisplatin-induced DNA double strand break, while let-7e inhibitor exerted the opposite effects. In human EOC tissues, BRCA1 and Rad51 levels were increased in the chemo-resistant group compared with the sensitive group and were negatively correlated with let-7e. Low let-7e and high Rad51 were significantly associated with poor progression-free survival and overall survival and multivariate regression analyses showed that let-7e was an independent predictor for overall survival and chemotherapy response in EOC. Receiver operating characteristic analysis indicated that let-7e level was highly predictive of resistance to platinum-taxane chemotherapy with an area under the curve of 0.826. CONCLUSIONS In EOC, low let-7e leads to activation of BRCA1 and Rad51 expression and subsequent enhancement of DSB repair, which in turn results in cisplatin-resistance. Let-7e is a potential predictor for survival and chemo-response in EOC and re-expression of let-7e might be an effective strategy for overcoming chemo-resistance.
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Affiliation(s)
- Man Xiao
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Jing Cai
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Liqiong Cai
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Jinghui Jia
- Department of Obstetrics and Gynecology, Air Force General Hospital, PLA, Beijing, 100142, China
| | - Lisha Xie
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Ying Zhu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Bangxing Huang
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Dongdong Jin
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Zehua Wang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Avenue, Wuhan, 430022, China.
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16
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Zhang Y, Yang Y, Xie Z, Zuo W, Jiang H, Zhao X, Sun Y, Kong W. Decreased Poly(ADP-Ribose) Polymerase 1 Expression Attenuates Glucose Oxidase-Induced Damage in Rat Cochlear Marginal Strial Cells. Mol Neurobiol 2015; 53:5971-5984. [PMID: 26526840 PMCID: PMC5085996 DOI: 10.1007/s12035-015-9469-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 09/30/2015] [Indexed: 12/20/2022]
Abstract
Oxidative damage to the inner ear is responsible for several types of sensorineural deafness. Cochlear stria marginal cells (MCs) are thought to be vulnerable to such oxidative stress. Activated poly(ADP-ribose) polymerase 1 (PARP1) has been implicated in several diseases, but the effect of PARP1 on MCs subjected to oxidative stress remains elusive. In this study, we established an in vitro cellular oxidative stress model using glucose oxidase (GO) and attempted to explore the role that PARP1 plays in the oxidative damage of MCs. In this study, PARP1 and poly-ADP-ribose (PAR) were highly expressed in GO-treated MCs, and this was accompanied by loss of MC viability, excessive generation of reactive oxygen species (ROS), collapse of mitochondria membrane potential (ΔΨm), and redistribution of the mitochondrial downstream pathway-related molecules Bax and cytochrome c, eventually causing MC death. These effects were almost completely counteracted by suppressing PARP1 expression with small interfering RNA (siRNA). We also found that caspase-3 activation was a downstream event of PARP activation and that apoptosis of MCs was suppressed, although not completely, by pretreatment with the pan-caspase inhibitor z-VAD-fmk. The suppression was less than that when PARP1 expression was inhibited. We conclude that GO treatment induces activation of PARP1, which causes MC damage via mitochondrial mediation. PARP1 plays a pivotal role in GO-induced MC death, at least in part, via the caspase-3 cascade. Our study might provide a new cellular and molecular approach for the treatment of oxidative stress-related sensorineural deafness.
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Affiliation(s)
- Yuanyuan Zhang
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China.,Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital, Wuhan University, 238 Jiefang Road, Wuhan, 430060, China
| | - Yang Yang
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Zhen Xie
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Wenqi Zuo
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Hongyan Jiang
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Xueyan Zhao
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Yu Sun
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Weijia Kong
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China.
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17
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Jacot W, Theillet C, Guiu S, Lamy PJ. Targeting triple-negative breast cancer and high-grade ovarian carcinoma: refining BRCAness beyond BRCA1/2 mutations? Future Oncol 2015; 11:557-9. [PMID: 25686112 DOI: 10.2217/fon.14.268] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- William Jacot
- Department of Medical Oncology, Institut régional du Cancer de Montpellier (ICM) - Val d'Aurelle, 208 rue des Apothicaires, 34298 Montpellier Cedex 5, France
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18
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Liu NA, Sun J, Kono K, Horikoshi Y, Ikura T, Tong X, Haraguchi T, Tashiro S. Regulation of homologous recombinational repair by lamin B1 in radiation-induced DNA damage. FASEB J 2015; 29:2514-25. [PMID: 25733566 DOI: 10.1096/fj.14-265546] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 02/13/2015] [Indexed: 01/05/2023]
Abstract
DNA double-strand breaks (DSBs) are the major lethal lesion induced by ionizing radiation (IR). RAD51-dependent homologous recombination (HR) is one of the most important pathways in DSB repair and genome integrity maintenance. However, the mechanism of HR regulation by RAD51 remains unclear. To understand the mechanism of RAD51-dependent HR, we searched for interacting partners of RAD51 by a proteomics analysis and identified lamin B1 in human cells. Lamins are nuclear lamina proteins that play important roles in the structural organization of the nucleus and the regulation of chromosome functions. Immunoblotting analyses revealed that siRNA-mediated lamin B1 depletion repressed the DNA damage-dependent increase of RAD51 after IR. The repression was abolished by the proteasome inhibitor MG132, suggesting that lamin B1 stabilizes RAD51 by preventing proteasome-mediated degradation in cells with IR-induced DNA damage. We also showed that lamin B1 depletion repressed RAD51 focus formation and decreased the survival rates after IR. On the basis of these results, we propose that lamin B1 promotes DSB repair and cell survival by maintaining the RAD51 protein levels for HR upon DSB induction after IR.
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Affiliation(s)
- Ning-Ang Liu
- *Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, and Research Center for the Mathematics on Chromatin Live Dynamics (RcMcD), Hiroshima University, Hiroshima, Japan; Department of Mutagenesis, Laboratory of Chromatin Dynamics, Radiation Biology Center, Kyoto University, Kyoto, Japan; Laboratory Center, Medical College of Soochow University, Suzhou, China; and Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Jiying Sun
- *Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, and Research Center for the Mathematics on Chromatin Live Dynamics (RcMcD), Hiroshima University, Hiroshima, Japan; Department of Mutagenesis, Laboratory of Chromatin Dynamics, Radiation Biology Center, Kyoto University, Kyoto, Japan; Laboratory Center, Medical College of Soochow University, Suzhou, China; and Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Kazuteru Kono
- *Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, and Research Center for the Mathematics on Chromatin Live Dynamics (RcMcD), Hiroshima University, Hiroshima, Japan; Department of Mutagenesis, Laboratory of Chromatin Dynamics, Radiation Biology Center, Kyoto University, Kyoto, Japan; Laboratory Center, Medical College of Soochow University, Suzhou, China; and Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Yasunori Horikoshi
- *Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, and Research Center for the Mathematics on Chromatin Live Dynamics (RcMcD), Hiroshima University, Hiroshima, Japan; Department of Mutagenesis, Laboratory of Chromatin Dynamics, Radiation Biology Center, Kyoto University, Kyoto, Japan; Laboratory Center, Medical College of Soochow University, Suzhou, China; and Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Tsuyoshi Ikura
- *Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, and Research Center for the Mathematics on Chromatin Live Dynamics (RcMcD), Hiroshima University, Hiroshima, Japan; Department of Mutagenesis, Laboratory of Chromatin Dynamics, Radiation Biology Center, Kyoto University, Kyoto, Japan; Laboratory Center, Medical College of Soochow University, Suzhou, China; and Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Xing Tong
- *Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, and Research Center for the Mathematics on Chromatin Live Dynamics (RcMcD), Hiroshima University, Hiroshima, Japan; Department of Mutagenesis, Laboratory of Chromatin Dynamics, Radiation Biology Center, Kyoto University, Kyoto, Japan; Laboratory Center, Medical College of Soochow University, Suzhou, China; and Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Tokuko Haraguchi
- *Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, and Research Center for the Mathematics on Chromatin Live Dynamics (RcMcD), Hiroshima University, Hiroshima, Japan; Department of Mutagenesis, Laboratory of Chromatin Dynamics, Radiation Biology Center, Kyoto University, Kyoto, Japan; Laboratory Center, Medical College of Soochow University, Suzhou, China; and Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Satoshi Tashiro
- *Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, and Research Center for the Mathematics on Chromatin Live Dynamics (RcMcD), Hiroshima University, Hiroshima, Japan; Department of Mutagenesis, Laboratory of Chromatin Dynamics, Radiation Biology Center, Kyoto University, Kyoto, Japan; Laboratory Center, Medical College of Soochow University, Suzhou, China; and Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
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19
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Liu G, Yang D, Rupaimoole R, Pecot CV, Sun Y, Mangala LS, Li X, Ji P, Cogdell D, Hu L, Wang Y, Rodriguez-Aguayo C, Lopez-Berestein G, Shmulevich I, De Cecco L, Chen K, Mezzanzanica D, Xue F, Sood AK, Zhang W. Augmentation of response to chemotherapy by microRNA-506 through regulation of RAD51 in serous ovarian cancers. J Natl Cancer Inst 2015; 107:djv108. [PMID: 25995442 DOI: 10.1093/jnci/djv108] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 03/18/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Chemoresistance is a major challenge in cancer treatment. miR-506 is a potent inhibitor of the epithelial-to-mesenchymal transition (EMT), which is also associated with chemoresistance. We characterized the role of miR-506 in chemotherapy response in high-grade serous ovarian cancers. METHODS We used Kaplan-Meier and log-rank methods to analyze the relationship between miR-506 and progression-free and overall survival in The Cancer Genome Atlas (TCGA) (n = 468) and Bagnoli (n = 130) datasets, in vitro experiments to study whether miR-506 is associated with homologous recombination, and response to chemotherapy agents. We used an orthotopic ovarian cancer mouse model (n = 10 per group) to test the effect of miR-506 on cisplatin and PARP inhibitor sensitivity. All statistical tests were two-sided. RESULTS MiR-506 was associated with better response to therapy and longer progression-free and overall survival in two independent epithelial ovarian cancer patient cohorts (PFS: high vs low miR-506 expression; Bagnoli: hazard ratio [HR] = 3.06, 95% confidence interval [CI] = 1.90 to 4.70, P < .0001; TCGA: HR = 1.49, 95% CI = 1.00 to 2.25, P = 0.04). MiR-506 sensitized cells to DNA damage through directly targeting the double-strand DNA damage repair gene RAD51. Systemic delivery of miR-506 in 8-12 week old female athymic nude mice statistically significantly augmented the cisplatin and olaparib response (mean tumor weight ± SD, control miRNA plus cisplatin vs miR-506 plus cisplatin: 0.36±0.05g vs 0.07±0.02g, P < .001; control miRNA plus olaparib vs miR-506 plus olaparib: 0.32±0.13g vs 0.05±0.02g, P = .045, respectively), thus recapitulating the clinical observation. CONCLUSIONS MiR-506 is a robust clinical marker for chemotherapy response and survival in serous ovarian cancers and has important therapeutic value in sensitizing cancer cells to chemotherapy.
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Affiliation(s)
- Guoyan Liu
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Da Yang
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Rajesha Rupaimoole
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Chad V Pecot
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Yan Sun
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Lingegowda S Mangala
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Xia Li
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Ping Ji
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - David Cogdell
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Limei Hu
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Yingmei Wang
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Cristian Rodriguez-Aguayo
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Gabriel Lopez-Berestein
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Ilya Shmulevich
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Loris De Cecco
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Kexin Chen
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Delia Mezzanzanica
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Fengxia Xue
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Anil K Sood
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM)
| | - Wei Zhang
- : Departments of Pathology (GL, DY, YS, XL, PJ, DC, LH, WZ), Experimental Therapeutics (CRA, GLB), and Gynecologic Oncology and Reproductive Medicine (RR, LSM, AKS), Division of Cancer Medicine (CVP), Center for RNAi and Non-Coding RNA (RR, CVP, LSM, CRA, GLB, AKS, WZ), the University of Texas MD Anderson Cancer Center, Houston, TX; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, China (GL, YW, FX); Department of Pathology (YS) and Epidemiology (KC), Tianjin Medical University Cancer Institute and Hospital, Tianjin, China; Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, China (XL); Institute for Systems Biology, Seattle, WA (IS); Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy (LDC, DM).
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Gangopadhyay NN, Luketich JD, Opest A, Landreneau R, Schuchert MJ. PARP Inhibitor Activates the Intrinsic Pathway of Apoptosis in Primary Lung Cancer Cells. Cancer Invest 2014; 32:339-48. [PMID: 24897387 DOI: 10.3109/07357907.2014.919303] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Sakogawa K, Aoki Y, Misumi K, Hamai Y, Emi M, Hihara J, Shi L, Kono K, Horikoshi Y, Sun J, Ikura T, Okada M, Tashiro S. Involvement of homologous recombination in the synergism between cisplatin and poly (ADP-ribose) polymerase inhibition. Cancer Sci 2013; 104:1593-9. [PMID: 24033642 DOI: 10.1111/cas.12281] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 07/31/2013] [Accepted: 08/29/2013] [Indexed: 01/10/2023] Open
Abstract
Poly (ADP-ribose) polymerase (PARP) plays a critical role in responding to DNA damage, by activating DNA repair pathways responsible for cellular survival. Inhibition of PARP is used to treat certain solid cancers, such as breast and ovarian cancers. However, its effectiveness with other solid cancers, such as esophageal squamous cell carcinoma (ESCC), has not been clarified. We evaluated the effects of PARP inhibition on the survival of human esophageal cancer cells, with a special focus on the induction and repair of DNA double-strand breaks. The effects were monitored by colony formation assays and DNA damage responses, with immunofluorescence staining of γH2AX and RAD51. We found that PARP inhibition synergized with cisplatin, and the cells were highly sensitive, in a similar manner to the combination of cisplatin and 5-fluorouracil (5-FU). Comparable increases in RAD51 foci formation were observed after each combined treatment with cisplatin and either 3-aminobenzamide (3-AB) or 5-FU in three human esophageal cancer cell lines, TE11, TE14, and TE15. In addition, decreasing the amount of RAD51 by RNA interference rendered the TE11 cells even more hypersensitive to these treatments. Our findings suggested that the homologous recombinational repair pathway may be involved in the synergism between cisplatin and either 3-AB or 5-FU, and that 3-AB and 5-FU may similarly modify the cisplatin-induced DNA damage to types requiring the recruitment of RAD51 proteins for their repair. Understanding these mechanisms could be useful for improving the clinical outcome of ESCC patients who suffer from aggressive disease that presently lacks effective treatment options.
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Affiliation(s)
- Kenji Sakogawa
- Department of Cellular Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
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