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Identification of a New Prediction Model for Bladder Cancer Related to Immune Functions and Chemotherapy Using Gene Sets of Biological Processes. BIOMED RESEARCH INTERNATIONAL 2022; 2022:4740686. [DOI: 10.1155/2022/4740686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 09/20/2022] [Accepted: 09/29/2022] [Indexed: 11/18/2022]
Abstract
Background. Biological processes serve crucial functions in the initiation and development of cancer. Therefore, we constructed and validated a model for bladder cancer (BLCA) with good predictive power for immunity, prognosis, and therapy. Methods. Using the expression of the gene sets based on biological processes, BLCA patients were divided into three clusters by consensus cluster analysis. By performing LASSO regression analysis twice, key genes were selected, and the biological processes-related genes’ (BPRG) score was calculated. Differences in immune infiltration, tumor microenvironment, tumor mutation burden, immunotherapy, and sensitivity towards chemotherapy were analyzed between two groups divided by BPRG score. Results. Good accuracy was observed for the three clusters. They showed different prognoses and levels of immune cell infiltration. The selected key genes were mainly enriched in immune-related pathways. The high-BPRG score group was related to poor prognosis, higher immune cell infiltration, interstitial scores, and increased tumor mutation. Moreover, the effects of immunotherapy were good, and those of chemotherapy were poor. Conclusion. Overall, key genes may be involved in various complex immune regulation processes. Therefore, the quantification and verification of the BPRG score are expected to facilitate the understanding of the immunosuppressive microenvironment in BLCA and guide the choice of chemotherapeutic drugs and immunotherapeutic regimens and help predict the prognoses of patients with BLCA.
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Goričar K, Dugar F, Dolžan V, Marinko T. NBN, RAD51 and XRCC3 Polymorphisms as Potential Predictive Biomarkers of Adjuvant Radiotherapy Toxicity in Early HER2-Positive Breast Cancer. Cancers (Basel) 2022; 14:cancers14184365. [PMID: 36139526 PMCID: PMC9496855 DOI: 10.3390/cancers14184365] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/03/2022] [Accepted: 09/04/2022] [Indexed: 11/23/2022] Open
Abstract
Simple Summary Adjuvant radiotherapy for breast cancer patients significantly improves survival and causes side effects. It is known that the response to radiotherapy is individual, but we are not yet able to predict patients with high risk for acute or late radiotherapy adverse events. This study aimed to investigate the association between homologous recombination repair (HRR) polymorphisms and radiotherapy toxicity and thus contribute to the knowledge on potential predictive biomarkers of radiotherapy toxicity in early HER2-positive breast cancer. This study was among the first to evaluate the role of HRR genetic variability with cardiac toxicity. RAD51 polymorphisms were associated with cardiac adverse events, while XRCC3 polymorphisms were associated with skin adverse events. Our results suggest that polymorphisms in key HRR genes might be used as potential biomarkers of late treatment-related adverse events in early HER2-positive breast cancer treated with radiotherapy. Abstract Radiotherapy (RT) for breast cancer significantly impacts patient survival and causes adverse events. Double-strand breaks are the most harmful type of DNA damage associated with RT, which is repaired through homologous recombination (HRR). As genetic variability of DNA repair genes could affect response to RT, we aimed to evaluate the association of polymorphisms in HRR genes with tumor characteristics and the occurrence of RT adverse events in early HER2-positive breast cancer. Our study included 101 breast cancer patients treated with adjuvant RT and trastuzumab. All patients were genotyped for eight single nucleotide polymorphisms in NBN, RAD51 and XRCC3 using competitive allele-specific PCR. Carriers of XRCC3 rs1799794 GG genotype were less likely to have higher tumor differentiation grade (OR = 0.05, 95% CI = 0.01–0.44, p = 0.007). Carriers of RAD51 rs1801321 TT genotype were more likely to have higher NYHA class in univariable (OR = 10.0; 95% CI = 1.63–61.33; p = 0.013) and multivariable (OR = 9.27; 95% CI = 1.28–67.02; p = 0.027) analysis. Carriers of RAD51 rs12593359 GG genotype were less likely to have higher NYHA class in univariable (OR = 0.09; 95% CI = 0.01–0.79; p = 0.030) and multivariable (OR = 0.07; 95% CI = 0.01–0.81; p = 0.034) analysis. Carriers of XRCC3 rs1799794 GG genotypes experienced more skin adverse events based on LENT-SOMA scale in univariable (OR = 5.83; 95% CI = 1.22–28.00; p = 0.028) and multivariable (OR = 10.90; 95% CI = 1.61–73.72; p = 0.014) analysis. In conclusion, XRCC3 and RAD51 polymorphisms might contribute to RT adverse events in early HER2-positive breast cancer patients.
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Affiliation(s)
- Katja Goričar
- Pharmacogenetics Laboratory, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Franja Dugar
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Vita Dolžan
- Pharmacogenetics Laboratory, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Tanja Marinko
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
- Institute of Oncology Ljubljana, 1000 Ljubljana, Slovenia
- Correspondence:
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Kumar M, Ritambhara, Tiwari S, Vijayaraghavalu S, Siddiqui M, Al-Khedhairy A. Clinical response of carboplatin-based chemotherapy and its association to genetic polymorphism in lung cancer patients from North India – A clinical pharmacogenomics study. J Cancer Res Ther 2022; 18:109-118. [DOI: 10.4103/jcrt.jcrt_925_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Jia C, Wang Q, Yao X, Yang J. The Role of DNA Damage Induced by Low/High Dose Ionizing Radiation in Cell Carcinogenesis. EXPLORATORY RESEARCH AND HYPOTHESIS IN MEDICINE 2021; 000:000-000. [DOI: 10.14218/erhm.2021.00020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Mohamed RI, Bargal SA, Mekawy AS, El-Shiekh I, Tuncbag N, Ahmed AS, Badr E, Elserafy M. The overexpression of DNA repair genes in invasive ductal and lobular breast carcinomas: Insights on individual variations and precision medicine. PLoS One 2021; 16:e0247837. [PMID: 33662042 PMCID: PMC7932549 DOI: 10.1371/journal.pone.0247837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 02/14/2021] [Indexed: 12/22/2022] Open
Abstract
In the era of precision medicine, analyzing the transcriptomic profile of patients is essential to tailor the appropriate therapy. In this study, we explored transcriptional differences between two invasive breast cancer subtypes; infiltrating ductal carcinoma (IDC) and lobular carcinoma (LC) using RNA-Seq data deposited in the TCGA-BRCA project. We revealed 3854 differentially expressed genes between normal ductal tissues and IDC. In addition, IDC to LC comparison resulted in 663 differentially expressed genes. We then focused on DNA repair genes because of their known effects on patients' response to therapy and resistance. We here report that 36 DNA repair genes are overexpressed in a significant number of both IDC and LC patients' samples. Despite the upregulation in a significant number of samples, we observed a noticeable variation in the expression levels of the repair genes across patients of the same cancer subtype. The same trend is valid for the expression of miRNAs, where remarkable variations between patients' samples of the same cancer subtype are also observed. These individual variations could lie behind the differential response of patients to treatment. The future of cancer diagnostics and therapy will inevitably depend on high-throughput genomic and transcriptomic data analysis. However, we propose that performing analysis on individual patients rather than a big set of patients' samples will be necessary to ensure that the best treatment is determined, and therapy resistance is reduced.
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Affiliation(s)
- Ruwaa I. Mohamed
- Center for Informatics Sciences (CIS), Nile University, Giza, Egypt
| | - Salma A. Bargal
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Asmaa S. Mekawy
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
- University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt
| | - Iman El-Shiekh
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
- University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt
| | - Nurcan Tuncbag
- Graduate School of Informatics, Department of Health Informatics, Middle East Technical University, Ankara, Turkey
| | - Alaa S. Ahmed
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
- University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt
| | - Eman Badr
- University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt
- Faculty of Computers and Artificial Intelligence, Cairo University, Giza, Egypt
- * E-mail: (EB); (ME)
| | - Menattallah Elserafy
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
- University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt
- * E-mail: (EB); (ME)
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Soliman AHM, Zaki NN, Fathy HM, Mohamed AA, Ezzat MA, Rayan A. Genetic polymorphisms in XRCC1, OGG1, and XRCC3 DNA repair genes and DNA damage in radiotherapy workers. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:43786-43799. [PMID: 32740834 DOI: 10.1007/s11356-020-10270-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/27/2020] [Indexed: 06/11/2023]
Abstract
DNA damage may develop at any dose of ionizing radiation. DNA damage activates pathways that regulate cell growth and division or coordinate its replication and repair. The repair pathways, base excision repair (BER) and single-strand break repair (SSBR), can repair such damages efficiently and maintain genome integrity. Loss of this repair process or alteration of its control will be associated with serious outcomes for cells and individuals. This study aimed to determine the relationship between XRCC1 (Arg194Trp, Arg280His, and Arg399Gln), OGG1 (Ser326Cys), and XRCC3 (Thr241Met) SNPs and DNA damage and to identify high-risk individuals with reduced DNA repair capacity. This case-control study was conducted on 80 subjects; 50 subjects working in Clinical Oncology and Nuclear Medicine Department in Assiut University Hospital along with 30 controls. A total of 1 mL blood samples were collected for Single-Cell Gel Electrophoresis Technique (Comet Assay) for detection of DNA damage in those subjects. A total of 3 mL fresh blood samples were collected and analyzed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP)-based technique. DNA damage detected by comet test was significantly high in IR-exposed workers than control. Statistically high significant difference was found in exposed subjects versus control subjects regarding the frequencies of the variant alleles of hOGG1326, XRCC1280 & 399, and XRCC3241. The level of DNA damage was not affected by OGG1326 SNPs when comparing subjects of wild genotype with those of (pooled) variants either in the exposed staff or in the control group while XRCC1280, 399 and XRCC3241 variant alleles had an influence on the studied DNA damage biomarker. Moreover, genotyping distribution pattern was highly variable in relation to gender. The present study indicated a relationship between DNA damage detected by comet test and single nucleotide polymorphisms in genes coding for DNA certain repair enzymes. Individuals occupationally exposed to low doses of ionizing radiation could be at great risk and more susceptible to the increased DNA damage if they have inherited genetic polymorphism.
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Affiliation(s)
- Asmaa H M Soliman
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Nasef N Zaki
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Hala M Fathy
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Aml A Mohamed
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | | | - Amal Rayan
- Clinical Oncology Department, Faculty of Medicine, Assiut University, Assiut, Egypt.
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Lee KJ, Piett CG, Andrews JF, Mann E, Nagel ZD, Gassman NR. Defective base excision repair in the response to DNA damaging agents in triple negative breast cancer. PLoS One 2019; 14:e0223725. [PMID: 31596905 PMCID: PMC6785058 DOI: 10.1371/journal.pone.0223725] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 09/26/2019] [Indexed: 01/08/2023] Open
Abstract
DNA repair defects have been increasingly focused on as therapeutic targets. In hormone-positive breast cancer, XRCC1-deficient tumors have been identified and proposed as targets for combination therapies that damage DNA and inhibit DNA repair pathways. XRCC1 is a scaffold protein that functions in base excision repair (BER) by mediating essential interactions between DNA glycosylases, AP endonuclease, poly(ADP-ribose) polymerase 1, DNA polymerase β (POL β), and DNA ligases. Loss of XRCC1 confers BER defects and hypersensitivity to DNA damaging agents. BER defects have not been evaluated in triple negative breast cancers (TNBC), for which new therapeutic targets and therapies are needed. To evaluate the potential of XRCC1 as an indicator of BER defects in TNBC, we examined XRCC1 expression in the TCGA database and its expression and localization in TNBC cell lines. The TCGA database revealed high XRCC1 expression in TNBC tumors and TNBC cell lines show variable, but mostly high expression of XRCC1. XRCC1 localized outside of the nucleus in some TNBC cell lines, altering their ability to repair base lesions and single-strand breaks. Subcellular localization of POL β also varied and did not correlate with XRCC1 localization. Basal levels of DNA damage correlated with observed changes in XRCC1 expression, localization, and measure repair capacity. The results confirmed that XRCC1 expression changes indicate DNA repair capacity changes but emphasize that basal DNA damage levels along with protein localization are better indicators of DNA repair defects. Given the observed over-expression of XRCC1 in TNBC preclinical models and tumors, XRCC1 expression levels should be assessed when evaluating treatment responses of TNBC preclinical model cells.
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Affiliation(s)
- Kevin J. Lee
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, United States of America
- University of South Alabama College of Medicine, Mobile, AL, United States of America
| | - Cortt G. Piett
- Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, United States of America
| | - Joel F. Andrews
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, United States of America
- University of South Alabama College of Medicine, Mobile, AL, United States of America
| | - Elise Mann
- University of South Alabama College of Medicine, Mobile, AL, United States of America
| | - Zachary D. Nagel
- Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, United States of America
| | - Natalie R. Gassman
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL, United States of America
- University of South Alabama College of Medicine, Mobile, AL, United States of America
- * E-mail:
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DNA Repair Deficiency in Breast Cancer: Opportunities for Immunotherapy. JOURNAL OF ONCOLOGY 2019; 2019:4325105. [PMID: 31320901 PMCID: PMC6607732 DOI: 10.1155/2019/4325105] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/04/2019] [Accepted: 05/29/2019] [Indexed: 12/19/2022]
Abstract
Historically the development of anticancer treatments has been focused on their effect on tumor cells alone. However, newer treatments have shifted attention to targets on immune cells, resulting in dramatic responses. The effect of DNA repair deficiency on the microenvironment remains an area of key interest. Moreover, established therapies such as DNA damaging treatments such as chemotherapy and PARP inhibitors further modify the tumor microenvironment. Here we describe DNA repair pathways in breast cancer and activation of innate immune pathways in DNA repair deficiency, in particular, the STING (STimulator of INterferon Genes) pathway. Breast tumors with DNA repair deficiency are associated with upregulation of immune checkpoints including PD-L1 (Programmed Death Ligand-1) and may represent a target population for single agent or combination immunotherapy treatment.
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Aktas BY, Guner G, Guven DC, Arslan C, Dizdar O. Exploiting DNA repair defects in breast cancer: from chemotherapy to immunotherapy. Expert Rev Anticancer Ther 2019; 19:589-601. [PMID: 31181965 DOI: 10.1080/14737140.2019.1631162] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: Impaired DNA damage response (DDR) and subsequent genomic instability are associated with the carcinogenic process itself, but it also results in sensitivity of tumor cells to certain drugs and can be exploited to treat cancer by inducing deadly mutations or mitotic catastrophe. Exploiting DDR defects in breast cancer cells has been one of the main strategies in both conventional chemotherapy, targeted therapies, or immunotherapies. Areas covered: In this review, the authors first discuss DDR mechanisms in healthy cells and DDR defects in breast cancer, then focus on current therapies and developments in the treatment of DDR-deficient breast cancer. Expert opinion: Among conventional chemotherapeutics, platinum-based regimens, in particular, seem to be effective in DDR-deficient patients. PARP inhibitors represent one of the successful models of translational research in this area and clinical data showed high efficacy and reasonable toxicity with these agents in patients with breast cancer and BRCA mutation. Recent studies have underlined that some subtypes of breast cancer are highly immunogenic. Promising activity has been shown with immunotherapeutic agents, particularly in DDR-deficient breast cancers. Chemotherapeutics, DNA-repair pathway inhibitors, and immunotherapies might result in further improved outcomes in certain subsets of patients with breast cancer and DDR.
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Affiliation(s)
- Burak Yasin Aktas
- a Department of Medical Oncology , Hacettepe University Cancer Institute , Ankara , Turkey
| | - Gurkan Guner
- a Department of Medical Oncology , Hacettepe University Cancer Institute , Ankara , Turkey
| | - Deniz Can Guven
- a Department of Medical Oncology , Hacettepe University Cancer Institute , Ankara , Turkey
| | - Cagatay Arslan
- b Bahcesehir University , Faculty of Medicine, Department of Internal Medicine and Medical Oncology , Istanbul , Turkey
| | - Omer Dizdar
- a Department of Medical Oncology , Hacettepe University Cancer Institute , Ankara , Turkey
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Singh N, Kazim SN, Sultana R, Tiwari D, Borkotoky R, Kakati S, Nath Das N, Kumar Saikia A, Bose S. Oxidative stress and deregulations in base excision repair pathway as contributors to gallbladder anomalies and carcinoma - a study involving North-East Indian population. Free Radic Res 2019; 53:473-485. [PMID: 31117842 DOI: 10.1080/10715762.2019.1606423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Gallbladder cancer (GBC) is a fatal condition with dismal prognosis and aggressive local invasiveness; and with uncharacterised molecular pathology relating to non-specific therapeutic modalities. Given the importance of oxidative stress in chronic diseases and carcinogenesis, and the lacunae in literature regarding its role in gallbladder diseases, this study aimed to study the involvement of oxidative stress and deregulation in the base excision repair (BER) pathway in the pathogenesis of gallbladder diseases including GBC. This study involved patients from the North-East Indian population, where the numbers of reported cases are increasing rapidly and alarmingly. Oxidative stress, based on 8-OH-dG levels, was found to be significantly higher in gallbladder anomalies (cholelithiasis [CL] and cholecystitis [CS]) and GBC at the plasma and DNA level, and was associated with GBC severity. The expressions of key BER pathway genes were downregulated in gallbladder anomalies and GBC compared to controls, and in GBC compared to both non-neoplastic controls and gallbladder anomalies. Expression of XRCC1 and hOGG1 was significantly associated with both susceptibility and severity of GBC. The XRCC1 codon280 polymorphism was associated with disease susceptibility; and significantly higher oxidative stress was observed in hOGG1 genotypic variants. The genomes of GBC patients were found to be more hypermethylated compared to controls, with the promoters of XRCC1 and hOGG1 being hypermethylated and, therefore, being silenced. This study underlined the prognostic significance of the oxidative stress marker 8-OH-dG and BER pathway genes, especially hOGG1 and XRCC1, in gallbladder anomalies and GBC, as well as stated their potential for therapeutic targeting.
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Affiliation(s)
- Nidhi Singh
- a Department of Biotechnology , Gauhati University , Guwahati , India
| | - Syed Naqui Kazim
- b Centre for Interdisciplinary Research in Basic Sciences , Jamia Millia Islamia , New Delhi , India
| | - Rizwana Sultana
- c Bioengineering and Technology , Gauhati University , Guwahati , India
| | - Diptika Tiwari
- c Bioengineering and Technology , Gauhati University , Guwahati , India
| | - Raktim Borkotoky
- a Department of Biotechnology , Gauhati University , Guwahati , India
| | | | | | - Anjan Kumar Saikia
- e Central Railway Hospital , Guwahati , India.,f GNRC Hospital , Guwahati , India
| | - Sujoy Bose
- a Department of Biotechnology , Gauhati University , Guwahati , India
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Liu J, Zheng B, Li Y, Yuan Y, Xing C. Genetic Polymorphisms of DNA Repair Pathways in Sporadic Colorectal Carcinogenesis. J Cancer 2019; 10:1417-1433. [PMID: 31031852 PMCID: PMC6485219 DOI: 10.7150/jca.28406] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 01/12/2019] [Indexed: 12/20/2022] Open
Abstract
DNA repair systems play a critical role in maintaining the integrity and stability of the genome, which mainly include base excision repair (BER), nucleotide excision repair (NER), mismatch repair (MMR) and double-strand break repair (DSBR). The polymorphisms in different DNA repair genes that are mainly represented by single-nucleotide polymorphisms (SNPs) can potentially modulate the individual DNA repair capacity and therefore exert an impact on individual genetic susceptibility to cancer. Sporadic colorectal cancer arises from the colorectum without known contribution from germline causes or significant family history of cancer or inflammatory bowel disease. In recent years, emerging studies have investigated the association between polymorphisms of DNA repair system genes and sporadic CRC. Here, we review recent insights into the polymorphisms of DNA repair pathway genes, not only individual gene polymorphism but also gene-gene and gene-environment interactions, in sporadic colorectal carcinogenesis.
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Affiliation(s)
- Jingwei Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Bowen Zheng
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Ying Li
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Chengzhong Xing
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
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Palmirotta R, Carella C, Silvestris E, Cives M, Stucci SL, Tucci M, Lovero D, Silvestris F. SNPs in predicting clinical efficacy and toxicity of chemotherapy: walking through the quicksand. Oncotarget 2018; 9:25355-25382. [PMID: 29861877 PMCID: PMC5982750 DOI: 10.18632/oncotarget.25256] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 04/07/2018] [Indexed: 12/19/2022] Open
Abstract
In the "precision medicine" era, chemotherapy still remains the backbone for the treatment of many cancers, but no affordable predictors of response to the chemodrugs are available in clinical practice. Single nucleotide polymorphisms (SNPs) are gene sequence variations occurring in more than 1% of the full population, and account for approximately 80% of inter-individual genomic heterogeneity. A number of studies have investigated the predictive role of SNPs of genes enrolled in both pharmacodynamics and pharmacokinetics of chemotherapeutics, but the clinical implementation of related results has been modest so far. Among the examined germline polymorphic variants, several SNPs of dihydropyrimidine dehydrogenase (DPYD) and uridine diphosphate glucuronosyltransferases (UGT) have shown a robust role as predictors of toxicity following fluoropyrimidine- and/or irinotecan-based treatments respectively, and a few guidelines are mandatory in their detection before therapy initiation. Contrasting results, however, have been reported on the capability of variants of other genes as MTHFR, TYMS, ERCC1, XRCC1, GSTP1, CYP3A4/3A5 and ABCB1, in predicting either therapy efficacy or toxicity in patients undergoing treatment with pyrimidine antimetabolites, platinum derivatives, irinotecan and taxanes. While formal recommendations for routine testing of these SNPs cannot be drawn at this moment, therapeutic decisions may indeed benefit of germline genomic information, when available. Here, we summarize the clinical impact of germline genomic variants on the efficacy and toxicity of major chemodrugs, with the aim to facilitate the therapeutic expectance of clinicians in the odiern quicksand field of complex molecular biology concepts and controversial trial data interpretation.
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Affiliation(s)
- Raffaele Palmirotta
- Department of Biomedical Sciences and Human Oncology, Section of Clinical and Molecular Oncology, University of Bari Aldo Moro, 70124 Bari, Italy
| | - Claudia Carella
- Department of Biomedical Sciences and Human Oncology, Section of Clinical and Molecular Oncology, University of Bari Aldo Moro, 70124 Bari, Italy
| | - Erica Silvestris
- Department of Biomedical Sciences and Human Oncology, Section of Clinical and Molecular Oncology, University of Bari Aldo Moro, 70124 Bari, Italy
| | - Mauro Cives
- Department of Biomedical Sciences and Human Oncology, Section of Clinical and Molecular Oncology, University of Bari Aldo Moro, 70124 Bari, Italy
| | - Stefania Luigia Stucci
- Department of Biomedical Sciences and Human Oncology, Section of Clinical and Molecular Oncology, University of Bari Aldo Moro, 70124 Bari, Italy
| | - Marco Tucci
- Department of Biomedical Sciences and Human Oncology, Section of Clinical and Molecular Oncology, University of Bari Aldo Moro, 70124 Bari, Italy
| | - Domenica Lovero
- Department of Biomedical Sciences and Human Oncology, Section of Clinical and Molecular Oncology, University of Bari Aldo Moro, 70124 Bari, Italy
| | - Franco Silvestris
- Department of Biomedical Sciences and Human Oncology, Section of Clinical and Molecular Oncology, University of Bari Aldo Moro, 70124 Bari, Italy
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Du L, Yu W, Dai X, Zhao N, Huang X, Tong F, Liu F, Huang Y, Ju Z, Yang W, Cong X, Xie C, Liu X, Liang L, Han Y, Qu B. Association of DNA repair gene polymorphisms with the risk of radiation pneumonitis in lung cancer patients. Oncotarget 2017; 9:958-968. [PMID: 29416669 PMCID: PMC5787526 DOI: 10.18632/oncotarget.22982] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 11/08/2017] [Indexed: 12/25/2022] Open
Abstract
A total of 149 lung cancer patients were recruited to receive intensity modulated radiation therapy (IMRT). The association of developing radiation pneumonitis (RP) with genetic polymorphism was evaluated. The risks of four polymorphic sites in three DNA repair related genes (ERCC1, rs116615:T354C and rs3212986:C1516A; ERCC2, rs13181:A2251C; XRCC1, rs25487:A1196G) for developing grade ≥ 2 RP were assessed respectively. It was observed that ERCC1 T354C SNP had a significant effect on the development of grade ≥ 2 RP (CT/TT vs. CC, adjusted HR = 0.517, 95% CI, 0.285-0.939; adjusted P = 0.030). It is the first time demonstrating that CT/TT genotype of ERCC1 354 was significantly associated with lower RP risk after radio therapy.
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Affiliation(s)
- Lehui Du
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Wei Yu
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiangkun Dai
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Nana Zhao
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiang Huang
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Fang Tong
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Fang Liu
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Yurong Huang
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Zhongjian Ju
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Wei Yang
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiaohu Cong
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Chuanbin Xie
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Xiaoliang Liu
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Lanqing Liang
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Yanan Han
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
| | - Baolin Qu
- Department of Radiation Oncology, Chinese PLA General Hospital, Beijing 100853, China
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Abstract
Genetic variations in DNA repair genes may affect DNA repair capacity therefore increase risk for cancer. In our study, we evaluted the relation between DNA repair gene polymorphisms XRCC1 rs1799782, rs25487, rs25489; XPC rs2228000, rs2228001; XPD rs1799793, rs13181; XRCC3 rs861539; RAD51B rs10483813, rs1314913 and breast cancer risk for 202 Turkish cases in total, in which 102 patients with breast cancer and 100 controls. Genotyping of the DNA samples was carried out by multiplex PCR and matrix-assisted laser desorption/ionization mass spectrometry with time of flight measurement (MALDI-TOF) using Sequenom MassARRAY 4 analyzer. Genotype and allele distributions were calculated between the groups. Odds ratios (ORs) and 95% confidence intervals (CIs) were reported. rs25487 AA genotype and A allele was found to be increased in the control group (respectively, OR 0.16 95% CI 0.02-1.06, p = 0.058; OR 1.55, 95% CI 1.01-2.36, p = 0.043) and rs861539 T allele was found to be decreased in the patient group (OR 1.53, 95% CI 1.01-2.30, p = 0.049). No association with breast cancer was found for the remaining SNPs. Our findings suggest that XRCC1 rs25487 AA genotype and A allele, XRCC3 rs861539 T allele may have protective effects in breast cancer for Turkish population.
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Song T, Cao S, Tao S, Liang S, Du W, Liang Y. A Novel Unsupervised Algorithm for Biological Process-based Analysis on Cancer. Sci Rep 2017; 7:4671. [PMID: 28680165 PMCID: PMC5498659 DOI: 10.1038/s41598-017-04961-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/30/2017] [Indexed: 12/04/2022] Open
Abstract
The aberrant alterations of biological functions are well known in tumorigenesis and cancer development. Hence, with advances in high-throughput sequencing technologies, capturing and quantifying the functional alterations in cancers based on expression profiles to explore cancer malignant process is highlighted as one of the important topics among cancer researches. In this article, we propose an algorithm for quantifying biological processes by using gene expression profiles over a sample population, which involves the idea of constructing principal curves to condense information of each biological process by a novel scoring scheme on an individualized manner. After applying our method on several large-scale breast cancer datasets in survival analysis, a subset of these biological processes extracted from corresponding survival model is then found to have significant associations with clinical outcomes. Further analyses of these biological processes enable the study of the interplays between biological processes and cancer phenotypes of interest, provide us valuable insights into cancer biology in biological process level and guide the precision treatment for cancer patients. And notably, prognosis predictions based on our method are consistently superior to the existing state of art methods with the same intention.
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Affiliation(s)
- Tianci Song
- College of Computer Science and Technology, Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, 130012, China
| | - Sha Cao
- Computational Systems Biology Lab, Department of Biochemistry and Molecular Biology and Institute of Bioinformatics, University of Georgia, Athens, GA, 30602, USA
| | - Sheng Tao
- Computational Systems Biology Lab, Department of Biochemistry and Molecular Biology and Institute of Bioinformatics, University of Georgia, Athens, GA, 30602, USA
| | - Sen Liang
- College of Computer Science and Technology, Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, 130012, China
- Computational Systems Biology Lab, Department of Biochemistry and Molecular Biology and Institute of Bioinformatics, University of Georgia, Athens, GA, 30602, USA
| | - Wei Du
- College of Computer Science and Technology, Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, 130012, China.
- Computational Systems Biology Lab, Department of Biochemistry and Molecular Biology and Institute of Bioinformatics, University of Georgia, Athens, GA, 30602, USA.
| | - Yanchun Liang
- College of Computer Science and Technology, Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun, 130012, China.
- Zhuhai Laboratory of Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Zhuhai College of Jilin University, Zhuhai, 519041, China.
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16
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Pannkuk EL, Fornace AJ, Laiakis EC. Metabolomic applications in radiation biodosimetry: exploring radiation effects through small molecules. Int J Radiat Biol 2017; 93:1151-1176. [PMID: 28067089 DOI: 10.1080/09553002.2016.1269218] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE Exposure of the general population to ionizing radiation has increased in the past decades, primarily due to long distance travel and medical procedures. On the other hand, accidental exposures, nuclear accidents, and elevated threats of terrorism with the potential detonation of a radiological dispersal device or improvised nuclear device in a major city, all have led to increased needs for rapid biodosimetry and assessment of exposure to different radiation qualities and scenarios. Metabolomics, the qualitative and quantitative assessment of small molecules in a given biological specimen, has emerged as a promising technology to allow for rapid determination of an individual's exposure level and metabolic phenotype. Advancements in mass spectrometry techniques have led to untargeted (discovery phase, global assessment) and targeted (quantitative phase) methods not only to identify biomarkers of radiation exposure, but also to assess general perturbations of metabolism with potential long-term consequences, such as cancer, cardiovascular, and pulmonary disease. CONCLUSIONS Metabolomics of radiation exposure has provided a highly informative snapshot of metabolic dysregulation. Biomarkers in easily accessible biofluids and biospecimens (urine, blood, saliva, sebum, fecal material) from mouse, rat, and minipig models, to non-human primates and humans have provided the basis for determination of a radiation signature to assess the need for medical intervention. Here we provide a comprehensive description of the current status of radiation metabolomic studies for the purpose of rapid high-throughput radiation biodosimetry in easily accessible biofluids and discuss future directions of radiation metabolomics research.
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Affiliation(s)
- Evan L Pannkuk
- a Tumor Biology Program , Lombardi Comprehensive Cancer Center, Georgetown University , Washington DC , USA
| | - Albert J Fornace
- b Molecular Oncology , Lombardi Comprehensive Cancer Center, Georgetown University , Washington DC , USA.,c Department of Biochemistry and Molecular and Cellular Biology , Georgetown University , Washington DC , USA
| | - Evagelia C Laiakis
- c Department of Biochemistry and Molecular and Cellular Biology , Georgetown University , Washington DC , USA
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17
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Laiakis EC, Pannkuk EL, Diaz-Rubio ME, Wang YW, Mak TD, Simbulan-Rosenthal CM, Brenner DJ, Fornace AJ. Implications of genotypic differences in the generation of a urinary metabolomics radiation signature. Mutat Res 2016; 788:41-9. [PMID: 27040378 PMCID: PMC4887295 DOI: 10.1016/j.mrfmmm.2016.03.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 03/04/2016] [Accepted: 03/24/2016] [Indexed: 02/04/2023]
Abstract
The increased threat of radiological terrorism and accidental nuclear exposures, together with increased usage of radiation-based medical procedures, has made necessary the development of minimally invasive methods for rapid identification of exposed individuals. Genetically predisposed radiosensitive individuals comprise a significant number of the population and require specialized attention and treatments after such events. Metabolomics, the assessment of the collective small molecule content in a given biofluid or tissue, has proven effective in the rapid identification of radiation biomarkers and metabolic perturbations. To investigate how the genotypic background may alter the ionizing radiation (IR) signature, we analyzed urine from Parp1(-/-) mice, as a model radiosensitive genotype, exposed to IR by utilizing the analytical power of liquid chromatography coupled with mass spectrometry (LC-MS), as urine has been thoroughly investigated in wild type (WT) mice in previous studies from our laboratory. Samples were collected at days one and three after irradiation, time points that are important for the early and efficient triage of exposed individuals. Time-dependent perturbations in metabolites were observed in the tricarboxylic acid pathway (TCA). Other differentially excreted metabolites included amino acids and metabolites associated with dysregulation of energy metabolism pathways. Time-dependent apoptotic pathway activation between WT and mutant mice following IR exposure may explain the altered excretion patterns, although the origin of the metabolites remains to be determined. This first metabolomics study in urine from radiation exposed genetic mutant animal models provides evidence that this technology can be used to dissect the effects of genotoxic agents on metabolism by assessing easily accessible biofluids and identify biomarkers of radiation exposure. Applications of metabolomics could be incorporated in the future to further elucidate the effects of IR on the metabolism of Parp1(-/-) genotype by assessing individual tissues.
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Affiliation(s)
- Evagelia C Laiakis
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA.
| | - Evan L Pannkuk
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA
| | - Maria Elena Diaz-Rubio
- Pediatrics, Division of Developmental Nutrition, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Yi-Wen Wang
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA
| | - Tytus D Mak
- Mass Spectrometry Data Center, National Institute of Standards and Technology (NIST), Gaithersburg MD, USA
| | | | | | - Albert J Fornace
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA; Lombardi Comprehensive Cancer Center, Georgetown University, Washington DC, USA; Center of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, Jeddah 22254, Saudi Arabia
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18
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Sergio LPS, Campos VMA, Vicentini SC, Mencalha AL, de Paoli F, Fonseca AS. Low-intensity red and infrared lasers affect mRNA expression of DNA nucleotide excision repair in skin and muscle tissue. Lasers Med Sci 2016; 31:429-35. [DOI: 10.1007/s10103-016-1870-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 01/04/2016] [Indexed: 01/08/2023]
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19
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Yang JZ, Wang ZX, Ma LH, Shen XB, Sun Y, Hu DW, Sun LX. The organochlorine pesticides residues in the invasive ductal breast cancer patients. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2015; 40:698-703. [PMID: 26410088 DOI: 10.1016/j.etap.2015.07.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 07/02/2015] [Accepted: 07/08/2015] [Indexed: 06/05/2023]
Abstract
Investigation of organochlorine pesticides residues (important environmental contamination causing malignant transformation) in breast cancer patients is valuable to understanding their roles in breast cancer. 75 invasive ductal carcinoma (IDC) patients were enrolled with control of 79 benign breast diseases patients and control of 80 healthy women. Morning fasting blood specimens and adipose tissue specimens beside the primary lesion were detected with gas chromatograph. In blood specimens, both levels of β-HCH and PCTA were higher in IDC than those in both controls (both p<0.05), and increasingly higher among the three IDC degrees. In adipose tissue specimens, all levels of β-HCH, PCTA and pp'-DDE were higher in IDC than those in control (all p<0.05) and increasingly higher among three IDC degrees. The levels of β-HCH, PCTA in both blood specimens and adipose tissue specimens were higher in estrogen receptor (ER) positive IDC than those in ER negative IDC (all p<0.05). The higher level of organochlorine pesticides residues in blood and adipose tissue specimens of IDC infers its association with IDC, but the details remains to reveal, and this study may helpful in this field.
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Affiliation(s)
- Jing-Zhe Yang
- The Affiliated Hospital of Chengde Medical College, 36 Nanyingzi Street, Chengde 067000, Hebei, China
| | - Zhu-Xin Wang
- The Affiliated Hospital of Chengde Medical College, 36 Nanyingzi Street, Chengde 067000, Hebei, China
| | - Li-Hui Ma
- The Affiliated Hospital of Chengde Medical College, 36 Nanyingzi Street, Chengde 067000, Hebei, China
| | - Xing-Bin Shen
- The Affiliated Hospital of Chengde Medical College, 36 Nanyingzi Street, Chengde 067000, Hebei, China
| | - Yu Sun
- The Affiliated Hospital of Chengde Medical College, 36 Nanyingzi Street, Chengde 067000, Hebei, China
| | - Da-Wei Hu
- The Affiliated Hospital of Chengde Medical College, 36 Nanyingzi Street, Chengde 067000, Hebei, China.
| | - Li-Xin Sun
- The Affiliated Hospital of Chengde Medical College, 36 Nanyingzi Street, Chengde 067000, Hebei, China.
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20
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Sekhar KR, Freeman ML. Nrf2 promotes survival following exposure to ionizing radiation. Free Radic Biol Med 2015; 88:268-274. [PMID: 25975985 PMCID: PMC4628893 DOI: 10.1016/j.freeradbiomed.2015.04.035] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 04/28/2015] [Accepted: 04/30/2015] [Indexed: 12/30/2022]
Abstract
Nrf2 is a transcription factor that promotes antioxidant and drug-metabolizing gene expression. It also regulates the transcription of genes involved in carbohydrate and lipid metabolism, NADPH regeneration, and heme and iron metabolism, as well as proteasome metabolism. Emerging research has identified Nrf2 as a critical factor for promoting survival of mammalian cells subjected to ionizing radiation. At a mechanistic level, Nrf2 promotes the repair of DNA damage and drives detoxification of superoxide that is generated hours to days after irradiation. This review summarizes research in these areas and discusses targeting of Nrf2 in radiation-resistant cancer and Nrf2׳s role in mitigating acute radiation syndrome.
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Affiliation(s)
- Konjeti R Sekhar
- Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Michael L Freeman
- Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.
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21
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Guo CX, Wang J, Huang LH, Li JG, Chen X. Impact of single-nucleotide polymorphisms on radiation pneumonitis in cancer patients. Mol Clin Oncol 2015; 4:3-10. [PMID: 26870349 DOI: 10.3892/mco.2015.666] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 07/06/2015] [Indexed: 12/24/2022] Open
Abstract
Radiation pneumonitis (RP) is one of the most important dose-limiting toxicities in the radiotherapy of thoracic tumors, which reduces the rate of local tumor control and overall survival and severely affects the patients' quality of life. Single-nucleotide polymorphisms (SNPs) have recently attracted increasing attention as biomarkers for predicting the development of RP. SNPs in inflammation-related, DNA repair-related, stress response-related and angiogenesis-related genes were proved to be associated with RP, with different underlying mechanisms. Radiogenomics focuses on the differences in radiosensitivity caused by gene sequence variation, which may prove helpful in investigating the abovementioned associations. In this review, we aimed to investigate the associations between RP and SNPs reported in recent studies and highlight the main content and prospects of radiogenomics.
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Affiliation(s)
- Cheng-Xian Guo
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Jing Wang
- Medical College of Nanchang University, Nanchang, Jiangxi 330006, P.R. China; Department of Radiation Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Li-Hua Huang
- Center for Experimental Medical Research, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Jin-Gao Li
- Department of Radiation Oncology, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan 410078, P.R. China
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22
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Yang Z, Zhao J. Effect of APE1 and XRCC1 gene polymorphism on susceptibility to hepatocellular carcinoma and sensitivity to cisplatin. Int J Clin Exp Med 2015; 8:9931-9936. [PMID: 26309678 PMCID: PMC4538105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 06/10/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVE The relationship between APE1 and XRCC1 gene polymorphism and the susceptibility to hepatocellular carcinoma (HCC) was discussed, and the effect of APE1 and XRCC1 gene polymorphism on the sensitivity of HCC to cisplatin was investigated. METHOD From January 2010 to August 2014, 118 HCC patients were admitted to our hospital. 120 patients treated for non-tumor diseases during this period were recruited as controls. PCR-RFLP analyses were performed to determine the association between APE1 Asp148Glu and XRCC1 Arg194Trp polymorphism, risk of HCC, and sensitivity to cisplatin. RESULTS The risk of HCC in patients with Glu/Glu genotype of APE1 gene was increased by 4.510 times (95% CI: 1.235~16.472, P<0.05). Compared with Asp/Asp, the risk of cisplatin resistance in patients with Glu/Glu genotype was increased by 10.500 times (95% CI: 1.800~61.241). Compared Arg/Arg genotype, the risk of cisplatin resistance in patients with Arp/Trp genotype of XRCC1 gene was increased by 6.701 times (95% CI: 1.464~30.732, P<0.05). CONCLUSION APE1 Asp148Glu polymorphism is associated with the susceptibility to HCC. APE1 Asp148Glu and XRCC1 Arg194Trp polymorphism plays a part in the cisplatin resistance of HCC cells.
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Affiliation(s)
- Zhihong Yang
- Department of Digestive, Yantaishan HospitalYantai 264000, Shandong Province, China
| | - Juan Zhao
- Department of Oncology, Xiangyang Central HospitalXiangyang 441021, Hubei Province, China
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