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Liu J, Zhang L, Mao P, Jiang G, Liu L, Wang J, Yang W, Owusu L, Li W. Functional characterization of a novel transcript of ERCC1 in chemotherapy resistance of ovarian cancer. Oncotarget 2017. [PMID: 29156754 DOI: 10.18632/oncotarget.20482] [] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Approximately 15-20% of ovarian cancer patients receiving platinum-based chemotherapy are primary platinum-resistant. Identification of these patients and transfer to other more effective therapy could reduce the morbidity of ovarian cancer. ERCC1 is a DNA repair gene which can complex with XPF to repair cisplatin-induced DNA damage and cause chemotherapy resistance. In this study, we found a novel ERCC1 transcript initiated upstream of the normal transcription initiation site. The expression of this larger ERCC1 transcript dramatically increased following cisplatin treatment in ovarian cancer cells and was regulated by the MAPK pathway. This phenomenon conferred enhanced cisplatin resistance on ovarian cancer cells, and was confirmed with chemosensitive and chemoresistant patients' samples. Our data suggested that larger ERCC1 transcript levels correlated with the outcome of platinum-based chemotherapy.
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Affiliation(s)
- Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Lin Zhang
- Academy of Integrative Medicine, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Ping Mao
- Department of General Surgery, The People's Hospital of Liaoning Province, Shenyang, Liaoning, 110016, China
| | - Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Likun Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Jing Wang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Wei Yang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Sheng 450000, China
| | - Lawrence Owusu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China.,Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
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Liu J, Zhang L, Mao P, Jiang G, Liu L, Wang J, Yang W, Owusu L, Li W. Functional characterization of a novel transcript of ERCC1 in chemotherapy resistance of ovarian cancer. Oncotarget 2017. [PMID: 29156754 DOI: 10.18632/oncotarget.20482]+[] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Approximately 15-20% of ovarian cancer patients receiving platinum-based chemotherapy are primary platinum-resistant. Identification of these patients and transfer to other more effective therapy could reduce the morbidity of ovarian cancer. ERCC1 is a DNA repair gene which can complex with XPF to repair cisplatin-induced DNA damage and cause chemotherapy resistance. In this study, we found a novel ERCC1 transcript initiated upstream of the normal transcription initiation site. The expression of this larger ERCC1 transcript dramatically increased following cisplatin treatment in ovarian cancer cells and was regulated by the MAPK pathway. This phenomenon conferred enhanced cisplatin resistance on ovarian cancer cells, and was confirmed with chemosensitive and chemoresistant patients' samples. Our data suggested that larger ERCC1 transcript levels correlated with the outcome of platinum-based chemotherapy.
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Affiliation(s)
- Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Lin Zhang
- Academy of Integrative Medicine, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Ping Mao
- Department of General Surgery, The People's Hospital of Liaoning Province, Shenyang, Liaoning, 110016, China
| | - Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Likun Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Jing Wang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Wei Yang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Sheng 450000, China
| | - Lawrence Owusu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China.,Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
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Liu J, Zhang L, Mao P, Jiang G, Liu L, Wang J, Yang W, Owusu L, Li W. Functional characterization of a novel transcript of ERCC1 in chemotherapy resistance of ovarian cancer. Oncotarget 2017; 8:85759-85771. [PMID: 29156754 PMCID: PMC5689644 DOI: 10.18632/oncotarget.20482] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Accepted: 07/25/2017] [Indexed: 01/13/2023] Open
Abstract
Approximately 15-20% of ovarian cancer patients receiving platinum-based chemotherapy are primary platinum-resistant. Identification of these patients and transfer to other more effective therapy could reduce the morbidity of ovarian cancer. ERCC1 is a DNA repair gene which can complex with XPF to repair cisplatin-induced DNA damage and cause chemotherapy resistance. In this study, we found a novel ERCC1 transcript initiated upstream of the normal transcription initiation site. The expression of this larger ERCC1 transcript dramatically increased following cisplatin treatment in ovarian cancer cells and was regulated by the MAPK pathway. This phenomenon conferred enhanced cisplatin resistance on ovarian cancer cells, and was confirmed with chemosensitive and chemoresistant patients' samples. Our data suggested that larger ERCC1 transcript levels correlated with the outcome of platinum-based chemotherapy.
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Affiliation(s)
- Jia Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Lin Zhang
- Academy of Integrative Medicine, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Ping Mao
- Department of General Surgery, The People’s Hospital of Liaoning Province, Shenyang, Liaoning, 110016, China
| | - Guoqiang Jiang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Likun Liu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Jing Wang
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
| | - Wei Yang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Sheng 450000, China
| | - Lawrence Owusu
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Weiling Li
- Department of Biotechnology, Dalian Medical University, Dalian, Liaoning, 116044, China
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Interaction of XRCC1 Arg399Gln Polymorphism and Alcohol Consumption Influences Susceptibility of Esophageal Cancer. Gastroenterol Res Pract 2016; 2016:9495417. [PMID: 26949387 PMCID: PMC4753333 DOI: 10.1155/2016/9495417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 12/16/2015] [Accepted: 12/28/2015] [Indexed: 12/31/2022] Open
Abstract
Background. To explore the correlation between the Arg399Gln polymorphism and susceptibility to esophageal cancer in Korean and Han Chinese individuals in Harbin, China, and its potential interaction with alcohol consumption. Methods. This prospective study included 203 patients with esophageal squamous cell carcinoma; 88 were of Korean descent and 115 were of Han Chinese descent. A group of healthy controls included 105 participants of Korean descent and 105 of Han Chinese descent. Genotyping of the Arg399Gln locus of XRCC1 was performed by PCR-RFLP. Results. The allelic and genotypic frequencies were not significantly different between individuals with esophageal cancer and controls or between individuals of Korean and Han Chinese descent (P > 0.05). However, when individuals with the wild-type Arg/Arg genotype also consumed alcohol, the risk of esophageal cancer was lower (OR = 3.539; 95% CI = 2.039-6.142; P < 0.05). Conclusions. The XRCC1 Arg399Gln polymorphism does not appear to be associated with esophageal cancer in individuals of Korean or Han Chinese descent in Harbin, China. However, alcohol consumption may decrease the risk of esophageal cancer in persons with the wild-type genotype.
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