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Malamos P, Papanikolaou C, Gavriatopoulou M, Dimopoulos MA, Terpos E, Souliotis VL. The Interplay between the DNA Damage Response (DDR) Network and the Mitogen-Activated Protein Kinase (MAPK) Signaling Pathway in Multiple Myeloma. Int J Mol Sci 2024; 25:6991. [PMID: 39000097 PMCID: PMC11241508 DOI: 10.3390/ijms25136991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 06/18/2024] [Accepted: 06/24/2024] [Indexed: 07/16/2024] Open
Abstract
The DNA damage response (DDR) network and the mitogen-activated protein kinase (MAPK) signaling pathway are crucial mechanisms for the survival of all living beings. An accumulating body of evidence suggests that there is crosstalk between these two systems, thus favoring the appropriate functioning of multi-cellular organisms. On the other hand, aberrations within these mechanisms are thought to play a vital role in the onset and progression of several diseases, including cancer, as well as in the emergence of drug resistance. Here, we provide an overview of the current knowledge regarding alterations in the DDR machinery and the MAPK signaling pathway as well as abnormalities in the DDR/MAPK functional crosstalk in multiple myeloma, the second most common hematologic malignancy. We also present the latest advances in the development of anti-myeloma drugs targeting crucial DDR- and MAPK-associated molecular components. These data could potentially be exploited to discover new therapeutic targets and effective biomarkers as well as for the design of novel clinical trials. Interestingly, they might provide a new approach to increase the efficacy of anti-myeloma therapy by combining drugs targeting the DDR network and the MAPK signaling pathway.
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Affiliation(s)
- Panagiotis Malamos
- Institute of Chemical Biology, National Hellenic Research Foundation, 116 35 Athens, Greece; (P.M.); (C.P.)
| | - Christina Papanikolaou
- Institute of Chemical Biology, National Hellenic Research Foundation, 116 35 Athens, Greece; (P.M.); (C.P.)
| | - Maria Gavriatopoulou
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, 115 28 Athens, Greece; (M.G.); (M.A.D.); (E.T.)
| | - Meletios A. Dimopoulos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, 115 28 Athens, Greece; (M.G.); (M.A.D.); (E.T.)
| | - Evangelos Terpos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, 115 28 Athens, Greece; (M.G.); (M.A.D.); (E.T.)
| | - Vassilis L. Souliotis
- Institute of Chemical Biology, National Hellenic Research Foundation, 116 35 Athens, Greece; (P.M.); (C.P.)
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Liu Q, Peng Q, Zhang B, Tan Y. X-ray cross-complementing family: the bridge linking DNA damage repair and cancer. J Transl Med 2023; 21:602. [PMID: 37679817 PMCID: PMC10483876 DOI: 10.1186/s12967-023-04447-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 08/17/2023] [Indexed: 09/09/2023] Open
Abstract
Genomic instability is a common hallmark of human tumours. As a carrier of genetic information, DNA is constantly threatened by various damaging factors that, if not repaired in time, can affect the transmission of genetic information and lead to cellular carcinogenesis. In response to these threats, cells have evolved a range of DNA damage response mechanisms, including DNA damage repair, to maintain genomic stability. The X-ray repair cross-complementary gene family (XRCC) comprises an important class of DNA damage repair genes that encode proteins that play important roles in DNA single-strand breakage and DNA base damage repair. The dysfunction of the XRCC gene family is associated with the development of various tumours. In the context of tumours, mutations in XRCC and its aberrant expression, result in abnormal DNA damage repair, thus contributing to the malignant progression of tumour cells. In this review, we summarise the significant roles played by XRCC in diverse tumour types. In addition, we discuss the correlation between the XRCC family members and tumour therapeutic sensitivity.
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Affiliation(s)
- Qiang Liu
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha, 410013, Hunan, China
- NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Sciences, Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha, 410078, Hunan, China
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, 410008, Hunan, China
| | - Qiu Peng
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha, 410013, Hunan, China
| | - Bin Zhang
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha, 410013, Hunan, China.
- Department of Histology and Embryology, Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China.
| | - Yueqiu Tan
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, 283 Tongzipo Road, Changsha, 410013, Hunan, China.
- NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Sciences, Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha, 410078, Hunan, China.
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, 410008, Hunan, China.
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Ayoufu A, Paierhati P, Qiao L, Zhang N, Abudukeremu M. RUSC1-AS1 promotes the malignant progression of breast cancer depending on the regulation of the miR-326/XRCC5 pathway. Thorac Cancer 2023; 14:2504-2514. [PMID: 37429610 PMCID: PMC10447167 DOI: 10.1111/1759-7714.15035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/24/2023] [Accepted: 06/26/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Many long noncoding RNAs (lncRNAs) are the key regulators for cancer progression, including breast cancer (BC). RUSC1 antisense 1 (RUSC1-AS1) has been found to be highly expressed in BC, but its role and potential molecular mechanism in BC remain to be further elucidated. METHODS Quantitative reverse transcription-polymerase chain reaction (RT-PCR) was utilized to measure RUSC1-AS1, microRNA (miR)-326 and X-ray repair cross-complementing group 5 (XRCC5) expression. Cell proliferation, metastasis, cell cycle, apoptosis and angiogenesis were determined by cell counting kit-8, colony formation, transwell, flow cytometry and tube formation assays. Protein expression was detected by western blot analysis. The targeted relationship between miR-326 and RUSC1-AS1 or XRCC5 was validated using dual-luciferase reporter assay and RIP assay. Xenograft models were constructed to uncover the effect of RUSC1-AS1 on BC tumorigenesis. RESULTS RUSC1-AS1 was upregulated in BC, and its downregulation suppressed BC proliferation, metastasis, cell cycle, angiogenesis, and tumor growth. MiR-326 was confirmed to be sponged by RUSC1-AS1, and its inhibitor reversed the regulation of RUSC1-AS1 silencing on BC progression. XRCC5 could be targeted by miR-326. Overexpression of XRCC5 reversed the inhibitory impacts of miR-326 on BC progression. CONCLUSION RUSC1-AS1 could serve as a sponge of miR-326 to promote BC progression by targeting XRCC5, suggesting that RUSC1-AS1 might be a target for BC treatment.
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Affiliation(s)
- Aisikeer Ayoufu
- Department of Breast Surgery Ward TwoAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Puerkaiti Paierhati
- Department of Breast and Thyroid SurgeryAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Lei Qiao
- Department of Breast and Thyroid SurgeryAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Nan Zhang
- Department of Breast and Thyroid SurgeryAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Muzhapaer Abudukeremu
- Department of Breast and Thyroid SurgeryAffiliated Cancer Hospital of Xinjiang Medical UniversityUrumqiChina
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The Role of DNA Repair in Genomic Instability of Multiple Myeloma. Int J Mol Sci 2022; 23:ijms23105688. [PMID: 35628498 PMCID: PMC9144728 DOI: 10.3390/ijms23105688] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/15/2022] [Accepted: 05/16/2022] [Indexed: 02/01/2023] Open
Abstract
Multiple Myeloma (MM) is a B cell malignancy marked by genomic instability that arises both through pathogenesis and during disease progression. Despite recent advances in therapy, MM remains incurable. Recently, it has been reported that DNA repair can influence genomic changes and drug resistance in MM. The dysregulation of DNA repair function may provide an alternative explanation for genomic instability observed in MM cells and in cells derived from MM patients. This review provides an overview of DNA repair pathways with a special focus on their involvement in MM and discusses the role they play in MM progression and drug resistance. This review highlights how unrepaired DNA damage due to aberrant DNA repair response in MM exacerbates genomic instability and chromosomal abnormalities, enabling MM progression and drug resistance.
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Teoh PJ, An O, Chung TH, Vaiyapuri T, Raju A, Hoppe MM, Toh SHM, Wang W, Chan MC, Fullwood MJ, Jeyasekharan AD, Tergaonkar V, Chen L, Yang H, Chng WJ. p53-NEIL1 co-abnormalities induce genomic instability and promote synthetic lethality with Chk1 inhibition in multiple myeloma having concomitant 17p13(del) and 1q21(gain). Oncogene 2022; 41:2106-2121. [DOI: 10.1038/s41388-022-02227-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 01/21/2022] [Accepted: 02/01/2022] [Indexed: 11/09/2022]
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Aksenova AY, Zhuk AS, Lada AG, Zotova IV, Stepchenkova EI, Kostroma II, Gritsaev SV, Pavlov YI. Genome Instability in Multiple Myeloma: Facts and Factors. Cancers (Basel) 2021; 13:5949. [PMID: 34885058 PMCID: PMC8656811 DOI: 10.3390/cancers13235949] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/20/2021] [Accepted: 11/22/2021] [Indexed: 02/06/2023] Open
Abstract
Multiple myeloma (MM) is a malignant neoplasm of terminally differentiated immunoglobulin-producing B lymphocytes called plasma cells. MM is the second most common hematologic malignancy, and it poses a heavy economic and social burden because it remains incurable and confers a profound disability to patients. Despite current progress in MM treatment, the disease invariably recurs, even after the transplantation of autologous hematopoietic stem cells (ASCT). Biological processes leading to a pathological myeloma clone and the mechanisms of further evolution of the disease are far from complete understanding. Genetically, MM is a complex disease that demonstrates a high level of heterogeneity. Myeloma genomes carry numerous genetic changes, including structural genome variations and chromosomal gains and losses, and these changes occur in combinations with point mutations affecting various cellular pathways, including genome maintenance. MM genome instability in its extreme is manifested in mutation kataegis and complex genomic rearrangements: chromothripsis, templated insertions, and chromoplexy. Chemotherapeutic agents used to treat MM add another level of complexity because many of them exacerbate genome instability. Genome abnormalities are driver events and deciphering their mechanisms will help understand the causes of MM and play a pivotal role in developing new therapies.
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Affiliation(s)
- Anna Y. Aksenova
- Laboratory of Amyloid Biology, St. Petersburg State University, 199034 St. Petersburg, Russia
| | - Anna S. Zhuk
- International Laboratory “Computer Technologies”, ITMO University, 197101 St. Petersburg, Russia;
| | - Artem G. Lada
- Department of Microbiology and Molecular Genetics, University of California, Davis, CA 95616, USA;
| | - Irina V. Zotova
- Department of Genetics and Biotechnology, St. Petersburg State University, 199034 St. Petersburg, Russia; (I.V.Z.); (E.I.S.)
- Vavilov Institute of General Genetics, St. Petersburg Branch, Russian Academy of Sciences, 199034 St. Petersburg, Russia
| | - Elena I. Stepchenkova
- Department of Genetics and Biotechnology, St. Petersburg State University, 199034 St. Petersburg, Russia; (I.V.Z.); (E.I.S.)
- Vavilov Institute of General Genetics, St. Petersburg Branch, Russian Academy of Sciences, 199034 St. Petersburg, Russia
| | - Ivan I. Kostroma
- Russian Research Institute of Hematology and Transfusiology, 191024 St. Petersburg, Russia; (I.I.K.); (S.V.G.)
| | - Sergey V. Gritsaev
- Russian Research Institute of Hematology and Transfusiology, 191024 St. Petersburg, Russia; (I.I.K.); (S.V.G.)
| | - Youri I. Pavlov
- Eppley Institute for Research in Cancer, Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Departments of Biochemistry and Molecular Biology, Microbiology and Pathology, Genetics Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE 68198, USA
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Liu W, Ma S, Liang L, Kou Z, Zhang H, Yang J. The association between XRCC3 rs1799794 polymorphism and cancer risk: a meta-analysis of 34 case-control studies. BMC Med Genomics 2021; 14:117. [PMID: 33931047 PMCID: PMC8086287 DOI: 10.1186/s12920-021-00965-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 04/22/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Studies on the XRCC3 rs1799794 polymorphism show that this polymorphism is involved in a variety of cancers, but its specific relationships or effects are not consistent. The purpose of this meta-analysis was to investigate the association between rs1799794 polymorphism and susceptibility to cancer. METHODS PubMed, Embase, the Cochrane Library, Web of Science, and Scopus were searched for eligible studies through June 11, 2019. All analyses were performed with Stata 14.0. Subgroup analyses were performed by cancer type, ethnicity, source of control, and detection method. A total of 37 studies with 23,537 cases and 30,649 controls were included in this meta-analysis. RESULTS XRCC3 rs1799794 increased cancer risk in the dominant model and heterozygous model (GG + AG vs. AA: odds ratio [OR] = 1.04, 95% confidence interval [CI] = 1.00-1.08, P = 0.051; AG vs. AA: OR = 1.05, 95% CI = 1.00-1.01, P = 0.015). The existence of rs1799794 increased the risk of breast cancer and thyroid cancer, but reduced the risk of ovarian cancer. In addition, rs1799794 increased the risk of cancer in the Caucasian population. CONCLUSION This meta-analysis confirms that XRCC3 rs1799794 is related to cancer risk, especially increased risk for breast cancer and thyroid cancer and reduced risk for ovarian cancer. However, well-designed large-scale studies are required to further evaluate the results.
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Affiliation(s)
- Weiqing Liu
- Department of Internal Medicine-Oncology, the First Affiliated Hospital of Kunming Medical University, Yunnan Province, Kunming, 650032, People's Republic of China
| | - Shumin Ma
- Department of Oncology, the First Affiliated Hospital of Kunming Medical University, Yunnan Province, No. 295 Xichang Road, Kunming, 650032, People's Republic of China
| | - Lei Liang
- Department of Oncology, the First Affiliated Hospital of Kunming Medical University, Yunnan Province, No. 295 Xichang Road, Kunming, 650032, People's Republic of China
| | - Zhiyong Kou
- Department of Oncology, the First Affiliated Hospital of Kunming Medical University, Yunnan Province, No. 295 Xichang Road, Kunming, 650032, People's Republic of China
| | - Hongbin Zhang
- Department of Oncology, the First Affiliated Hospital of Kunming Medical University, Yunnan Province, No. 295 Xichang Road, Kunming, 650032, People's Republic of China
| | - Jun Yang
- Department of Oncology, the First Affiliated Hospital of Kunming Medical University, Yunnan Province, No. 295 Xichang Road, Kunming, 650032, People's Republic of China.
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Taiana E, Gallo Cantafio ME, Favasuli VK, Bandini C, Viglietto G, Piva R, Neri A, Amodio N. Genomic Instability in Multiple Myeloma: A "Non-Coding RNA" Perspective. Cancers (Basel) 2021; 13:cancers13092127. [PMID: 33924959 PMCID: PMC8125142 DOI: 10.3390/cancers13092127] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Genomic instability (GI) plays an important role in the pathobiology of multiple myeloma (MM) by promoting the acquisition of several tumor hallmarks. Molecular determinants of GI in MM are continuously emerging and will be herein discussed, with specific regard to non-coding RNAs. Targeting non-coding RNA molecules known to be involved in GI indeed provides novel routes to dampen such oncogenic mechanisms in MM. Abstract Multiple myeloma (MM) is a complex hematological malignancy characterized by abnormal proliferation of malignant plasma cells (PCs) within a permissive bone marrow microenvironment. The pathogenesis of MM is unequivocally linked to the acquisition of genomic instability (GI), which indicates the tendency of tumor cells to accumulate a wide repertoire of genetic alterations. Such alterations can even be detected at the premalignant stages of monoclonal gammopathy of undetermined significance (MGUS) and smoldering multiple myeloma (SMM) and, overall, contribute to the acquisition of the malignant traits underlying disease progression. The molecular basis of GI remains unclear, with replication stress and deregulation of DNA damage repair pathways representing the most documented mechanisms. The discovery that non-coding RNA molecules are deeply dysregulated in MM and can target pivotal components of GI pathways has introduced a further layer of complexity to the GI scenario in this disease. In this review, we will summarize available information on the molecular determinants of GI in MM, focusing on the role of non-coding RNAs as novel means to tackle GI for therapeutic intervention.
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Affiliation(s)
- Elisa Taiana
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy; (E.T.); (V.K.F.)
- Hematology, Fondazione Cà Granda IRCCS Policlinico, 20122 Milan, Italy
| | - Maria Eugenia Gallo Cantafio
- Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy; (M.E.G.C.); (G.V.)
| | - Vanessa Katia Favasuli
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy; (E.T.); (V.K.F.)
- Hematology, Fondazione Cà Granda IRCCS Policlinico, 20122 Milan, Italy
| | - Cecilia Bandini
- Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy; (C.B.); (R.P.)
- Città Della Salute e della Scienza Hospital, 10126 Torino, Italy
| | - Giuseppe Viglietto
- Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy; (M.E.G.C.); (G.V.)
| | - Roberto Piva
- Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy; (C.B.); (R.P.)
- Città Della Salute e della Scienza Hospital, 10126 Torino, Italy
| | - Antonino Neri
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy; (E.T.); (V.K.F.)
- Hematology, Fondazione Cà Granda IRCCS Policlinico, 20122 Milan, Italy
- Correspondence: (A.N.); (N.A.)
| | - Nicola Amodio
- Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy; (M.E.G.C.); (G.V.)
- Correspondence: (A.N.); (N.A.)
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Saitoh T, Oda T. DNA Damage Response in Multiple Myeloma: The Role of the Tumor Microenvironment. Cancers (Basel) 2021; 13:504. [PMID: 33525741 PMCID: PMC7865954 DOI: 10.3390/cancers13030504] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/21/2021] [Accepted: 01/26/2021] [Indexed: 12/13/2022] Open
Abstract
Multiple myeloma (MM) is an incurable plasma cell malignancy characterized by genomic instability. MM cells present various forms of genetic instability, including chromosomal instability, microsatellite instability, and base-pair alterations, as well as changes in chromosome number. The tumor microenvironment and an abnormal DNA repair function affect genetic instability in this disease. In addition, states of the tumor microenvironment itself, such as inflammation and hypoxia, influence the DNA damage response, which includes DNA repair mechanisms, cell cycle checkpoints, and apoptotic pathways. Unrepaired DNA damage in tumor cells has been shown to exacerbate genomic instability and aberrant features that enable MM progression and drug resistance. This review provides an overview of the DNA repair pathways, with a special focus on their function in MM, and discusses the role of the tumor microenvironment in governing DNA repair mechanisms.
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Affiliation(s)
- Takayuki Saitoh
- Department of Laboratory Sciences, Graduate School of Health Sciences, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Tsukasa Oda
- Laboratory of Molecular Genetics, Institute for Molecular and Cellular Regulation, Gunma University, 3-39-15 Showa-machi, Maebashi, Gunma 371-8512, Japan;
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Maclachlan K, Diamond B, Maura F, Hillengass J, Turesson I, Landgren CO, Kazandjian D. Second malignancies in multiple myeloma; emerging patterns and future directions. Best Pract Res Clin Haematol 2020; 33:101144. [PMID: 32139010 PMCID: PMC7544243 DOI: 10.1016/j.beha.2020.101144] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 01/09/2020] [Indexed: 12/20/2022]
Abstract
The changing landscape of treatment options for multiple myeloma has led to a higher proportion of patients achieving deep, long-lasting responses to therapy. With the associated improvement in overall survival, the development of subsequent second malignancies has become of increased significance. The risk of second malignancy after multiple myeloma is affected by a combination of patient-, disease- and therapy-related risk factors. This review discusses recent data refining our knowledge of these contributing factors, including current treatment modalities which increase risk (i.e. high-dose melphalan with autologous stem cell transplant and lenalidomide maintenance therapy). We highlight emerging data towards individualized risk- and response-adapted treatment strategies and discuss key areas requiring future research.
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Affiliation(s)
- Kylee Maclachlan
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | - Benjamin Diamond
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Francesco Maura
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jens Hillengass
- Section of Multiple Myeloma, Department of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Ingemar Turesson
- Department of Hematology, Skane University Hospital, Malmo, Sweden
| | - C Ola Landgren
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Dickran Kazandjian
- Multiple Myeloma Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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Pertesi M, Went M, Hansson M, Hemminki K, Houlston RS, Nilsson B. Genetic predisposition for multiple myeloma. Leukemia 2020; 34:697-708. [PMID: 31913320 DOI: 10.1038/s41375-019-0703-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 12/24/2019] [Indexed: 12/14/2022]
Abstract
Multiple myeloma (MM) is the second most common blood malignancy. Epidemiological family studies going back to the 1920s have provided evidence for familial aggregation, suggesting a subset of cases have an inherited genetic background. Recently, studies aimed at explaining this phenomenon have begun to provide direct evidence for genetic predisposition to MM. Genome-wide association studies have identified common risk alleles at 24 independent loci. Sequencing studies of familial cases and kindreds have begun to identify promising candidate genes where variants with strong effects on MM risk might reside. Finally, functional studies are starting to give insight into how identified risk alleles promote the development of MM. Here, we review recent findings in MM predisposition field, and highlight open questions and future directions.
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Affiliation(s)
- Maroulio Pertesi
- Hematology and Transfusion Medicine, Department of Laboratory Medicine, BMC B13, 221 84, Lund, Sweden
| | - Molly Went
- Division of Genetics and Epidemiology, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey, SM2 5NG, UK
| | - Markus Hansson
- Hematology and Transfusion Medicine, Department of Laboratory Medicine, BMC B13, 221 84, Lund, Sweden
| | - Kari Hemminki
- Department of Cancer Epidemiology, German Cancer Research Center, Im Neuenheimer Feld, Heidelberg, Germany.,Faculty of Medicine and Biomedical Center, Charles University in Prague, 30605, Pilsen, Czech Republic
| | - Richard S Houlston
- Division of Genetics and Epidemiology, The Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey, SM2 5NG, UK
| | - Björn Nilsson
- Hematology and Transfusion Medicine, Department of Laboratory Medicine, BMC B13, 221 84, Lund, Sweden. .,Broad Institute, 415 Main Street, Cambridge, MA, 02142, USA.
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Modifiable Lifestyle and Medical Risk Factors Associated With Myeloproliferative Neoplasms. Hemasphere 2020; 4:e327. [PMID: 32072143 PMCID: PMC7000482 DOI: 10.1097/hs9.0000000000000327] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 11/17/2019] [Accepted: 11/19/2019] [Indexed: 11/30/2022] Open
Abstract
Despite the identification of acquired genetic mutations associated with Myeloproliferative Neoplasms (MPNs) there is a paucity of information relating to modifiable risk factors that may lead to these mutations. The MOSAICC Study was an exploratory case-control study of polycythemia vera (PV), essential thrombocythemia (ET), and Myelofibrosis (MF). MPN patients and population controls (identified by General Practitioners) and non-blood relative/friend controls were recruited from 2 large UK centers. Participants completed a telephone-based questionnaire analyzed by unconditional logistic regression analysis adjusting for potential confounders. Risk factors for MPNs identified included increasing childhood household density [odds ratio (OR) 2.55, 95% confidence interval (CI) 1.16–5.62], low childhood socioeconomic status (OR 2.30, 95%CI 1.02–5.18) and high pack years smoking (OR 2.19, 95%CI 1.03–4.66) and current smoking restricted to JAK2 positive PV cases (OR 3.73, 95%CI 1.06–13.15). Obesity was linked with ET (OR 2.59, 95%CI 1.02–6.58) confirming results in previous cohort studies. Receipt of multiple CT scans was associated with a strongly increased risk of MPN although with wide confidence intervals (OR 5.38, 95%CI 1.67–17.3). Alcohol intake was inversely associated with risk of PV (OR 0.41, 95%CI 0.19–0.92) and ET (OR 0.48, 95%CI 0.24–0.98). The associations with childhood household density, high pack years smoking and alcohol were also seen in multivariate analysis. This is the largest case control study in MPNs to date and confirms the previously reported associations with obesity and cigarette smoking from cohort studies in addition to novel associations. In particular, the role of smoking and JAK2 mutation cases merits further evaluation.
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Gourzones C, Bret C, Moreaux J. Treatment May Be Harmful: Mechanisms/Prediction/Prevention of Drug-Induced DNA Damage and Repair in Multiple Myeloma. Front Genet 2019; 10:861. [PMID: 31620167 PMCID: PMC6759943 DOI: 10.3389/fgene.2019.00861] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 08/19/2019] [Indexed: 12/28/2022] Open
Abstract
Multiple myeloma (MM) is a malignancy characterized by accumulation of malignant plasma cells within the bone marrow (BM). MM is considered mostly without definitive treatment because of the inability of standard of care therapies to overcome drug-resistant relapse. Genotoxic agents are used in the treatment of MM and exploit the fact that DNA double-strand breaks are highly cytotoxic for cancer cells. However, their mutagenic effects are well-established and described. According to these effects, chemotherapy could cause harmful DNA damage associated with new driver genomic abnormalities providing selective advantage, drug resistance, and higher relapse risk. Several mechanisms associated with MM cell (MMC) resistance to genotoxic agents have been described, underlining MM heterogeneity. The understanding of these mechanisms provides several therapeutic strategies to overcome drug resistance and limit mutagenic effects of treatment in MM. According to this heterogeneity, adopting precision medicine into clinical practice, with the development of biomarkers, has the potential to improve MM disease management and treatment.
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Affiliation(s)
| | - Caroline Bret
- IGH, CNRS, Univ Montpellier, France.,Department of Biological Hematology, CHU Montpellier, Montpellier, France.,Univ Montpellier, UFR de Médecine, Montpellier, France
| | - Jerome Moreaux
- IGH, CNRS, Univ Montpellier, France.,Department of Biological Hematology, CHU Montpellier, Montpellier, France.,Univ Montpellier, UFR de Médecine, Montpellier, France.,Institut Universitaire de France, Paris, France
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14
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Campa D, Martino A, Macauda A, Dudziński M, Suska A, Druzd-Sitek A, Raab MS, Moreno V, Huhn S, Butrym A, Sainz J, Szombath G, Rymko M, Marques H, Lesueur F, Vangsted AJ, Vogel U, Kruszewski M, Subocz E, Buda G, Iskierka-Jażdżewska E, Ríos R, Merz M, Schöttker B, Mazur G, Perrial E, Martinez-Lopez J, Butterbach K, García Sanz R, Goldschmidt H, Brenner H, Jamroziak K, Reis RM, Kadar K, Dumontet C, Wątek M, Haastrup EK, Helbig G, Jurczyszyn A, Jerez A, Varkonyi J, Barington T, Grzasko N, Zaucha JM, Andersen V, Zawirska D, Canzian F. Genetic polymorphisms in genes of class switch recombination and multiple myeloma risk and survival: an IMMEnSE study. Leuk Lymphoma 2019; 60:1803-1811. [PMID: 30633655 DOI: 10.1080/10428194.2018.1551536] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Genetic variants in genes acting during the maturation process of immature B-cell to differentiated plasma cell could influence the risk of developing multiple myeloma (MM). During B-cell maturation, several programmed genetic rearrangements occur to increase the variation of the immunoglobulin chains. Class switch recombination (CSR) is one of the most important among these mechanisms. Germline polymorphisms altering even subtly this process could play a role in the etiology and outcome of MM. We performed an association study of 30 genetic variants in the key CSR genes, using 2632 MM patients and 2848 controls from the International Multiple Myeloma rESEarch (IMMEnSE) consortium, the Heidelberg MM Group and the ESTHER cohort. We found an association between LIG4-rs1555902 and decreased MM risk, which approached statistical significance, as well as significant associations between AICDA-rs3794318 and better outcome. Our results add to our knowledge on the genetic component of MM risk and survival.
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Affiliation(s)
- Daniele Campa
- a Department of Biology , University of Pisa , Pisa , Italy
| | - Alessandro Martino
- b Genomic Epidemiology Group, German Cancer Research Center (DKFZ) , Heidelberg , Germany
| | - Angelica Macauda
- a Department of Biology , University of Pisa , Pisa , Italy.,b Genomic Epidemiology Group, German Cancer Research Center (DKFZ) , Heidelberg , Germany
| | - Marek Dudziński
- c Hematology Department , Teaching Hospital No 1 , Rzeszów , Poland
| | - Anna Suska
- d Department of Hematology , Jagiellonian University Medical College , Cracow , Poland
| | - Agnieszka Druzd-Sitek
- e Lymphoma Department , Centre of Oncology-Institute of Maria Skłodowska-Curie , Warsaw , Poland
| | - Marc-Steffen Raab
- f Department of Internal Medicine V , Heidelberg University Hospital , Heidelberg , Germany.,g Max-Eder Research Group Experimental Therapies for Hematologic Malignancies, German Cancer Research Center (DKFZ) , Heidelberg , Germany
| | - Victor Moreno
- h Cancer Prevention and Control Program, Catalan Institute of Oncology (ICO), IDIBELL, CIBERESP and Department of Clinical Sciences, Faculty of Medicine , University of Barcelona , Barcelona , Spain
| | - Stefanie Huhn
- i Molecular Biology Laboratory, Section of Multiple Myeloma, Department of Internal Medicine V , Heidelberg University Hospital , Heidelberg , Germany
| | - Aleksandra Butrym
- j Department of Internal and Occupational Diseases, Hypertension and Clinical Oncology , Wroclaw Medical University , Wroclaw , Poland
| | - Juan Sainz
- k PTS Granada , Genomic Oncology Area, GENYO. Centre for Genomics and Oncological Research: Pfizer / University of Granada / Andalusian Regional Government , Granada , Spain.,l Monoclonal Gammopathies Unit, University Hospital Virgen de las Nieves , Granada , Spain.,m Pharmacogenetics Unit. Instituto de Investigación Biosanitaria de Granada (Ibs. Granada) , Hospitales Universitarios de Granada / Universidad de Granada , Granada , Spain
| | - Gergely Szombath
- n Department of Intrenal Medicine , Semmelweis University , Budapest , Hungary
| | - Marcin Rymko
- o Department of Haematology , Copernicus Town Hospital of Torun , Torun , Poland
| | - Herlander Marques
- p Life and Health Sciences Research Institute (ICVS), School of Health Sciences , University of Minho , Braga , Portugal
| | - Fabienne Lesueur
- q INSERM U900 , Paris , France.,r Institut Curie , Paris , France.,s Mines ParisTech , Fontainebleau , France.,t PSL University , Paris , France
| | - Annette Juul Vangsted
- u Department of Hematology , Copenhagen University Hospital , Rigshospitalet , Denmark
| | - Ulla Vogel
- v National Research Centre for the Working Environment , Denmark
| | - Marcin Kruszewski
- w Department of Hematology , University Hospital , Bydgoszcz , Poland
| | - Edyta Subocz
- x Department of Haematology , Military Institute of Medicine , Warsaw , Poland
| | - Gabriele Buda
- y Hematology Unit, Department of Clinical and Experimental Medicine , University of Pisa , Pisa , Italy
| | | | - Rafael Ríos
- k PTS Granada , Genomic Oncology Area, GENYO. Centre for Genomics and Oncological Research: Pfizer / University of Granada / Andalusian Regional Government , Granada , Spain.,l Monoclonal Gammopathies Unit, University Hospital Virgen de las Nieves , Granada , Spain.,m Pharmacogenetics Unit. Instituto de Investigación Biosanitaria de Granada (Ibs. Granada) , Hospitales Universitarios de Granada / Universidad de Granada , Granada , Spain
| | - Maximilian Merz
- f Department of Internal Medicine V , Heidelberg University Hospital , Heidelberg , Germany
| | - Ben Schöttker
- aa Division of Clinical Epidemiology and Aging Research , German Cancer Research Center (DKFZ) , Heidelberg , Germany.,ab Network Aging Research (NAR) , University of Heidelberg , Heidelberg , Germany
| | - Grzegorz Mazur
- j Department of Internal and Occupational Diseases, Hypertension and Clinical Oncology , Wroclaw Medical University , Wroclaw , Poland
| | - Emeline Perrial
- ac Cancer Research Center of Lyon, INSERM 1052/CNRS 5286 , University of Lyon , Lyon , France
| | | | - Katja Butterbach
- ab Network Aging Research (NAR) , University of Heidelberg , Heidelberg , Germany
| | - Ramón García Sanz
- ae Department of Hematology , University Hospital of Salamanca , Salamanca , Spain
| | - Hartmut Goldschmidt
- f Department of Internal Medicine V , Heidelberg University Hospital , Heidelberg , Germany.,af National Center for Tumor Diseases (NCT) , Heidelberg , Germany
| | - Hermann Brenner
- aa Division of Clinical Epidemiology and Aging Research , German Cancer Research Center (DKFZ) , Heidelberg , Germany.,ab Network Aging Research (NAR) , University of Heidelberg , Heidelberg , Germany.,ag Division of Preventive Oncology , National Center for Tumor Diseases (NCT) German Cancer Research Center (DKFZ) , Heidelberg , Germany.,ah German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ) , Heidelberg , Germany
| | - Krzysztof Jamroziak
- ai Department of Hematology , Institute of Hematology and Transfusion Medicine , Warsaw , Poland
| | - Rui Manuel Reis
- p Life and Health Sciences Research Institute (ICVS), School of Health Sciences , University of Minho , Braga , Portugal.,aj ICVS/3B's - PT Government Associate Laboratory , Braga/Guimarães , Portugal.,ak Barretos Cancer Hospital , Molecular Oncology Research Center , S. Paulo , Brazil
| | - Katalin Kadar
- n Department of Intrenal Medicine , Semmelweis University , Budapest , Hungary
| | - Charles Dumontet
- ac Cancer Research Center of Lyon, INSERM 1052/CNRS 5286 , University of Lyon , Lyon , France
| | - Marzena Wątek
- al Department of Hematology , Holy Cross Oncology Center , Kielce , Poland
| | - Eva Kannik Haastrup
- am Department of Clinical Immunology , Copenhagen University Hospital , Rigshospitalet, Copenhagen , Denmark
| | - Grzegorz Helbig
- an Department of Hematology and Bone Marrow Transplantation , Medical University of Silesia , Katowice , Poland
| | - Artur Jurczyszyn
- d Department of Hematology , Jagiellonian University Medical College , Cracow , Poland
| | - Andrés Jerez
- ao Department of Hematology , University Hospital Morales Meseguer, IMIB , Murcia , Spain
| | - Judit Varkonyi
- n Department of Intrenal Medicine , Semmelweis University , Budapest , Hungary
| | - Torben Barington
- ap Department of Clinical Immunology , Odense University Hospital , Odense , Denmark
| | - Norbert Grzasko
- aq Department of Hematology , St. John's Cancer Center , Lublin , Poland.,ar Department of Experimental Hematooncology , Medical University of Lublin , Lublin , Poland
| | | | - Vibeke Andersen
- at IRS-Center Sønderjylland , Aabenraa , Denmark.,au Institute of Molecular Biology, University of Southern Denmark , Odense , Denmark
| | - Daria Zawirska
- av Department of Haematology , University Hospital of Cracow , Cracow , Poland
| | - Federico Canzian
- b Genomic Epidemiology Group, German Cancer Research Center (DKFZ) , Heidelberg , Germany
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15
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Pehlivan S, Uysal MA, Aydin N, Nursal AF, Pehlivan M, Yavuzlar H, Sever U, Kurnaz S, Yavuz FK, Uysal S, Aydin PC. XRCC4 rs6869366 polymorphism is associated with susceptibility to both nicotine dependence and/or schizophrenia. ARCH CLIN PSYCHIAT 2018. [DOI: 10.1590/0101-60830000000157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
| | - Mehmet Atilla Uysal
- Yedikule Hospital for Chest Diseases and Thoracic Surgery Training and Research Hospital, Turkey
| | - Nazan Aydin
- Yedikule Hospital for Chest Diseases and Thoracic Surgery Training and Research Hospital, Turkey
| | | | | | - Hazal Yavuzlar
- Bakirkoy Research and Training Hospital for Psychiatry, Neurology and Neurosurgery, Turkey
| | | | | | - Fatih Kasım Yavuz
- Yedikule Hospital for Chest Diseases and Thoracic Surgery Training and Research Hospital, Turkey
| | - Suna Uysal
- Yedikule Hospital for Chest Diseases and Thoracic Surgery Training and Research Hospital, Turkey
| | - Pinar Cetinay Aydin
- Bakirkoy Research and Training Hospital for Psychiatry, Neurology and Neurosurgery, Turkey
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16
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Abstract
Ligase IV and XRCC4 genes, important molecules in the nonhomologous end-joining pathway for repairing DNA double-strand breaks, may play crucial roles in carcinogenesis. To detect their effects on the risk of human glioma, their gene expression differences between 110 human glioma tissues and 50 healthy brain tissues were determined using quantitative real-time PCR. Furthermore, two tagging single nucleotide polymorphisms (SNPs) in ligase IV and four SNPs in XRCC4 genes were genotyped in 317 glioma patients and 352 healthy controls. The association of glioma and ligase IV/XRCC4 was evaluated using methods for SNP, haplotype, and gene-gene interaction analysis. Compared with those in normal brain tissues, the relative gene expression levels of ligase IV and XRCC4 were significantly downregulated in glioma tissue (P=0.0017 and 0.0006, respectively). Single SNP analysis indicated that only rs10131 in ligase IV remained significantly associated with glioma (P=0.0036) after 10 000 permutation tests. Haplotype analysis showed that the haplotype profiles of ligase IV and XRCC4 were significantly different between glioma patients and healthy controls (P=0.004 and 3.13E-6, respectively). Finally, the gene-gene interaction analysis suggested that the three-locus model (rs1805388, rs10131, and rs2075685) was the best model for ligase IV and XRCC4 to have interaction effects on the risk of glioma. In conclusion, both ligase IV and XRCC4 may act in concert to modulate the development of glioma.
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17
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Single nucleotide polymorphisms in DNA repair genes and putative cancer risk. Arch Toxicol 2016; 90:2369-88. [PMID: 27334373 DOI: 10.1007/s00204-016-1771-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 06/15/2016] [Indexed: 02/07/2023]
Abstract
Single nucleotide polymorphisms (SNPs) are the most frequent type of genetic alterations between individuals. An SNP located within the coding sequence of a gene may lead to an amino acid substitution and in turn might alter protein function. Such a change in protein sequence could be functionally relevant and therefore might be associated with susceptibility to human diseases, such as cancer. DNA repair mechanisms are known to play an important role in cancer development, as shown in various human cancer syndromes, which arise due to mutations in DNA repair genes. This leads to the question whether subtle genetic changes such as SNPs in DNA repair genes may contribute to cancer susceptibility. In numerous epidemiological studies, efforts have been made to associate specific SNPs in DNA repair genes with altered DNA repair and cancer. The present review describes some of the common and most extensively studied SNPs in DNA repair genes and discusses whether they are functionally relevant and subsequently increase the likelihood that cancer will develop.
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18
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Henríquez-Hernández LA, Valenciano A, Foro-Arnalot P, Álvarez-Cubero MJ, Cozar JM, Suárez-Novo JF, Castells-Esteve M, Fernández-Gonzalo P, De-Paula-Carranza B, Ferrer M, Guedea F, Sancho-Pardo G, Craven-Bartle J, Ortiz-Gordillo MJ, Cabrera-Roldán P, Rodríguez-Melcón JI, Herrera-Ramos E, Rodríguez-Gallego C, Lara PC. Association between single-nucleotide polymorphisms in DNA double-strand break repair genes and prostate cancer aggressiveness in the Spanish population. Prostate Cancer Prostatic Dis 2016; 19:28-34. [PMID: 26754263 DOI: 10.1038/pcan.2015.63] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 10/27/2015] [Accepted: 11/24/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND Novel predictors of prognosis and treatment response for prostate cancer (PCa) are required to better individualize treatment. Single-nucleotide polymorphisms (SNPs) in four genes directly (XRCC5 (X-ray repair complementing defective repair in Chinese hamster cells 5) and XRCC6 (X-ray repair complementing defective repair in Chinese hamster cells 6)) or indirectly (PARP1 and major vault protein (MVP)) involved in non-homologous end joining were examined in 494 Spanish PCa patients. METHODS A total of 22 SNPs were genotyped in a Biotrove OpenArray NT Cycler. Clinical tumor stage, diagnostic PSA serum levels and Gleason score at diagnosis were obtained for all participants. Genotypic and allelic frequencies were determined using the web-based environment SNPator. RESULTS (XRCC6) rs2267437 appeared as a risk factor for developing more aggressive PCa tumors. Those patients carrying the GG genotype were at higher risk of developing bigger tumors (odds ratio (OR)=2.04, 95% confidence interval (CI) 1.26-3.29, P=0.004), present higher diagnostic PSA levels (OR=2.12, 95% CI 1.19-3.78, P=0.011), higher Gleason score (OR=1.65, 95% CI 1.01-2.68, P=0.044) and D'Amico higher risk tumors (OR=2.38, 95% CI 1.24-4.58, P=0.009) than those patients carrying the CC/CG genotypes. Those patients carrying the (MVP) rs3815824 TT genotype were at higher risk of presenting higher diagnostic PSA levels (OR=4.74, 95% CI 1.40-16.07, P=0.013) than those patients carrying the CC genotype. When both SNPs were analyzed in combination, those patients carrying the risk genotypes were at higher risk of developing D'Amico higher risk tumors (OR=3.33, 95% CI 1.56-7.17, P=0.002). CONCLUSIONS We believe that for the first time, genetic variants at XRCC6 and MVP genes are associated with risk of more aggressive disease, and would be taken into account when assessing the malignancy of PCa.
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Affiliation(s)
- L A Henríquez-Hernández
- Radiation Oncology Department, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas, Spain.,Instituto Canario de Investigación del Cáncer, Las Palmas, Spain.,Clinical Sciences Department, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
| | - A Valenciano
- Instituto Canario de Investigación del Cáncer, Las Palmas, Spain
| | - P Foro-Arnalot
- Radiation Oncology Department, Institud d'Oncologia Radioteràpica, Hospital de la Esperanza, Parc de Salut Mar, Barcelona, Spain
| | - M J Álvarez-Cubero
- Laboratory of Genetic Identification, Legal Medicine and Toxicology Department, Facultad de Medicina, Universidad de Granada, Granada, Spain.,GENYO, Pfizer-University of Granada-Andalusian Government Centre for Genomics and Oncological Research, Granada, Spain
| | - J M Cozar
- Department of Urology, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - J F Suárez-Novo
- Department of Urology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - M Castells-Esteve
- Department of Urology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | | | | | - M Ferrer
- Health Services Research Group, Institut de Recerca Hospital del Mar (IMIM), Barcelona, Spain
| | - F Guedea
- Department of Radiation Oncology, Institut Català d'Oncologia (ICO), L'Hospitalet de Llobregat, Barcelona, Spain
| | - G Sancho-Pardo
- Radiation Oncology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - J Craven-Bartle
- Radiation Oncology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - M J Ortiz-Gordillo
- Radiation Oncology Department, Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | - P Cabrera-Roldán
- Radiation Oncology Department, Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | - J I Rodríguez-Melcón
- Radiation Oncology Department, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas, Spain.,Instituto Canario de Investigación del Cáncer, Las Palmas, Spain
| | - E Herrera-Ramos
- Department of Immunology, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas, Spain.,Department of Medical and Surgical Sciences, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
| | - C Rodríguez-Gallego
- Department of Immunology, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas, Spain
| | - P C Lara
- Radiation Oncology Department, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas, Spain.,Instituto Canario de Investigación del Cáncer, Las Palmas, Spain.,Clinical Sciences Department, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
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19
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Mechanisms and Clinical Applications of Genome Instability in Multiple Myeloma. BIOMED RESEARCH INTERNATIONAL 2015; 2015:943096. [PMID: 26579543 PMCID: PMC4633548 DOI: 10.1155/2015/943096] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 09/29/2015] [Accepted: 10/07/2015] [Indexed: 12/21/2022]
Abstract
Ongoing genomic instability represents a hallmark of multiple myeloma (MM) cells, which manifests largely as whole chromosome- or translocation-based aneuploidy. Importantly, although it supports tumorigenesis, progression and, response to treatment in MM patients, it remains one of the least understood components of malignant transformation in terms of molecular basis. Therefore these aspects make the comprehension of genomic instability a pioneering strategy for novel therapeutic and clinical speculations to use in the management of MM patients. Here we will review mechanisms mediating genomic instability in MM cells with an emphasis placed on pathogenic mutations affecting DNA recombination, replication and repair, telomere function and mitotic regulation of spindle attachment, centrosome function, and chromosomal segregation. We will discuss the mechanisms by which genetic aberrations give rise to multiple pathogenic events required for myelomagenesis and conclude with a discussion of the clinical applications of these findings in MM patients.
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20
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Meta-analysis of the association of MTHFR polymorphisms with multiple myeloma risk. Sci Rep 2015; 5:10735. [PMID: 26022785 PMCID: PMC4448268 DOI: 10.1038/srep10735] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 04/20/2015] [Indexed: 01/11/2023] Open
Abstract
The association of methylenetetrahydrofolate reductase (MTHFR) polymorphisms with multiple myeloma (MM) risk has been explored, but the results remain controversial. Thus, a meta-analysis was performed to provide a comprehensively estimate. The case-control studies about MTHFR C677T and A1298C polymorphisms with MM risk were collected by searching PubMed, Elsevier, China National Knowledge Infrastructure and Wanfang Databases. Odds ratios (ORs) with 95% confidence intervals (CIs) were applied to assess the strength of association. Overall, no significant association was found between MTHFR A1298C polymorphism and MM risk under all four genetic models (AC vs. AA, OR = 0.99, 95%CI = 0.82-1.20; CC vs. AA, OR = 1.14, 95%CI = 0.77-1.68; recessive model, OR = 1.10, 95%CI = 0.76-1.59; dominant model, OR = 1.01, 95%CI = 0.84-1.22). The risk was also not significantly altered for C677T polymorphism and MM in overall comparisons (CT vs. CC, OR = 1.04, 95%CI = 0.93-1.17; TT vs. CC, OR = 1.16, 95%CI = 0.98-1.37; recessive model, OR = 1.13, 95%CI = 0.98-1.32; dominant model, OR = 1.07, 95%CI = 0.96-1.20). In subgroup analyses by ethnicity, no significant association was observed in both Caucasians and Asians. This meta-analysis suggested that MTHFR polymorphisms were not associated with MM risk.
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21
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Smolkova B, Dusinska M, Hemminki K. NBN and XRCC3 genetic variants in childhood acute lymphoblastic leukaemia. Cancer Epidemiol 2014; 38:563-8. [PMID: 25176580 DOI: 10.1016/j.canep.2014.08.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 08/03/2014] [Accepted: 08/04/2014] [Indexed: 12/12/2022]
Abstract
Nibrin and DNA repair protein XRCC3 are involved in DNA double-strand break repair. We genotyped seven tagging SNPs in these genes (rs1805794, rs709816; rs1063054; rs7141928, rs1799794, rs861530, rs861539) with the aim to analyse their association with acute lymphoblastic leukaemia (ALL), a disease, that is characterised by elevated genetic instability. Study consisted of 460 paediatric ALL cases and 552 healthy controls. For selection of DNA sequence variants we employed SNP-tagging approach, incorporating the HAPMAP CEU reference panel data. We did not find association of analysed and tagged SNPs and derived haplotypes with the ALL risk thus did not confirm the hypothesis that analysed DNA recombination repair variants account for increased susceptibility to ALL.
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Affiliation(s)
- Bozena Smolkova
- Division of Molecular Genetic Epidemiology, German Cancer Research Center, Heidelberg, Germany.
| | - Maria Dusinska
- Health Effects Laboratory MILK, NILU-Norwegian Institute for Air Research, Kjeller, Norway.
| | - Kari Hemminki
- Division of Molecular Genetic Epidemiology, German Cancer Research Center, Heidelberg, Germany.
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22
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Morgan GJ, Johnson DC, Weinhold N, Goldschmidt H, Landgren O, Lynch HT, Hemminki K, Houlston RS. Inherited genetic susceptibility to multiple myeloma. Leukemia 2014; 28:518-24. [PMID: 24247655 DOI: 10.1038/leu.2013.344] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 10/15/2013] [Accepted: 10/17/2013] [Indexed: 12/29/2022]
Abstract
Although the familial clustering of multiple myeloma (MM) supports the role of inherited susceptibility, only recently has direct evidence for genetic predisposition been demonstrated. A meta-analysis of two genome-wide association (GWA) studies has identified single-nucleotide polymorphisms (SNPs) localising to a number of genomic regions that are robustly associated with MM risk. In this review, we provide an overview of the evidence supporting a genetic contribution to the predisposition to MM and MGUS (monoclonal gammopathy of unknown significance), and the insight this gives into the biological basis of disease aetiology. We also highlight the promise of future approaches to identify further specific risk factors and their potential clinical utility.
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Affiliation(s)
- G J Morgan
- Haemato-Oncology Research Unit, Division of Molecular Pathology, Institute of Cancer Research, Surrey, UK
| | - D C Johnson
- Haemato-Oncology Research Unit, Division of Molecular Pathology, Institute of Cancer Research, Surrey, UK
| | - N Weinhold
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - H Goldschmidt
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - O Landgren
- Multiple Myeloma Section, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - H T Lynch
- Department of Preventive Medicine, Creighton's Hereditary Cancer Center, Omaha, NE, USA
| | - K Hemminki
- 1] Division of Molecular Genetic Epidemiology, German Cancer Research Centre (DKFZ), Heidelberg, Germany [2] Center for Primary Health Care Research, Lund University, Malmö, Sweden
| | - R S Houlston
- Division of Genetics and Epidemiology, Institute of Cancer Research, Surrey, UK
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23
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Genetic polymorphisms in DNA repair genes XRCC4 and XRCC5 and aflatoxin B1-related hepatocellular carcinoma. Epidemiology 2013; 24:671-81. [PMID: 23788213 DOI: 10.1097/ede.0b013e31829d2744] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Genetic polymorphisms in DNA repair genes may influence individual variation in DNA repair capacity and may play an important role in carcinogenesis. We investigated the role of genetic polymorphisms at XRCC4 codon 247 (rs3734091, XRCC4P) and XRCC5 codon 180 (rs80309960, XRCC5P) in liver cancer (hepatocellular carcinoma) caused by aflatoxin B1 (AFB1). METHODS A hospital-based case-control study, including 1499 liver cancer cases and 2045 controls without any liver disease, was conducted in a high aflatoxin exposure area in the Guangxi region of China to assess the relationship between these two polymorphisms and aflatoxin-related liver cancer risk and prognosis. Genotypes, mRNA levels, and the hot-spot mutation of TP53 gene (TP53M) related to AFB1 exposure was tested using TaqMan-PCR technique. XRCC4 protein level was analyzed by immunohistochemistry. RESULTS For XRCC4P and XRCC5P, only XRCC4P modified liver cancer risk. Compared with the homozygote of XRCC4 codon 247 Ala alleles (XRCC4-AA), the genotypes of XRCC4 codon 247 Ser alleles (namely XRCC4-AS or -SS) increased liver cancer risk (odds ratio [OR] = 1.35 and 2.02, respectively). Significant interactive effects between risk genotypes (OR > 1) and aflatoxin exposure status were also observed in the joint effects analysis. Moreover, this polymorphism was associated not only with lower XRCC4 expression levels but also with higher AFB1-DNA adduct levels and increasing TP53M and portal vein tumor risk. Additionally, XRCC4P modified the recurrence-free survival and overall survival of cases, especially under conditions of high aflatoxin exposure. CONCLUSION XRCC4P may be a genetic modifier for the risk and outcome of hepatocellular carcinoma induced by AFB1 exposure.
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Comprehensive assessment of the association between DNA repair gene XRCC3 rs861539 C/T polymorphism and lung cancer risk. Tumour Biol 2013; 34:2521-7. [DOI: 10.1007/s13277-013-0705-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 02/10/2013] [Indexed: 12/31/2022] Open
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Gourzones-Dmitriev C, Kassambara A, Sahota S, Rème T, Moreaux J, Bourquard P, Hose D, Pasero P, Constantinou A, Klein B. DNA repair pathways in human multiple myeloma: role in oncogenesis and potential targets for treatment. Cell Cycle 2013; 12:2760-73. [PMID: 23966156 DOI: 10.4161/cc.25951] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Every day, cells are faced with thousands of DNA lesions, which have to be repaired to preserve cell survival and function. DNA repair is more or less accurate and could result in genomic instability and cancer. We review here the current knowledge of the links between molecular features, treatment, and DNA repair in multiple myeloma (MM), a disease characterized by the accumulation of malignant plasma cells producing a monoclonal immunoglobulin. Genetic instability and abnormalities are two hallmarks of MM cells and aberrant DNA repair pathways are involved in disease onset, primary translocations in MM cells, and MM progression. Two major drugs currently used to treat MM, the alkylating agent Melphalan and the proteasome inhibitor Bortezomib act directly on DNA repair pathways, which are involved in response to treatment and resistance. A better knowledge of DNA repair pathways in MM could help to target them, thus improving disease treatment.
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Affiliation(s)
- Claire Gourzones-Dmitriev
- CHU Montpellier; Institute of Research in Biotherapy; Montpellier, France; INSERM; U1040; Montpellier, France
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Poschmann G, Lendzian A, Uszkoreit J, Eisenacher M, Borght AV, Ramaekers FC, Meyer HE, Stühler K. A combination of two electrophoretical approaches for detailed proteome-based characterization of SCLC subtypes. Arch Physiol Biochem 2013; 119:114-25. [PMID: 23651173 DOI: 10.3109/13813455.2013.789529] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Small cell lung cancers (SCLC) are heterogeneous and tumours differ in growth characteristics and treatment resistance. OBJECTIVE To get insight into the underlying protein profiles responsible for this heterogeneity, two subtypes of SCLC cells mutually differing in chemo resistance properties and growth characteristics are analysed. MATERIALS AND METHODS Two different electrophoresis approaches in combination with mass spectrometry were used to detect differences between the SCLC cell lines GLC1 and GLC1M13: IEF/SDS-PAGE as well as cetyltrimethylammonium bromide (CTAB)-SDS-PAGE. RESULTS Altogether 60 non redundant differentially expressed proteins were found of which 5 were verified by Western Blot analysis. DISCUSSION Most of these proteins identified are involved in processes of tumour progression. Therefore, these proteins are interesting candidates for further functional analysis. CONCLUSION Additional CTAB-SDS page is a complementary method to IEF-SDS page revealing a complete new subset of proteins differentially expressed between GLC1 and GLC1 M13 cells SCLC subtypes.
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MESH Headings
- Blotting, Western
- Cell Line, Tumor
- Cetrimonium
- Cetrimonium Compounds/chemistry
- Drug Resistance, Neoplasm
- Electrophoresis, Gel, Two-Dimensional/methods
- Electrophoresis, Polyacrylamide Gel/methods
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic
- Humans
- Image Processing, Computer-Assisted
- Isoelectric Focusing
- Lung Neoplasms/chemistry
- Lung Neoplasms/diagnosis
- Lung Neoplasms/genetics
- Lung Neoplasms/pathology
- Molecular Sequence Annotation
- Neoplasm Proteins/analysis
- Neoplasm Proteins/genetics
- Proteomics
- Small Cell Lung Carcinoma/chemistry
- Small Cell Lung Carcinoma/diagnosis
- Small Cell Lung Carcinoma/genetics
- Small Cell Lung Carcinoma/pathology
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
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Affiliation(s)
- Gereon Poschmann
- Molecular Proteomics Laboratory, BMFZ, Universität Düsseldorf, Germany.
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Neri P, Bahlis NJ. Genomic instability in multiple myeloma: mechanisms and therapeutic implications. Expert Opin Biol Ther 2013; 13 Suppl 1:S69-82. [PMID: 23782016 DOI: 10.1517/14712598.2013.814637] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Clonal plasma cells in multiple myeloma (MM) are typified by their nearly universal aneuploidy and the presence of recurrent chromosomal aberrations reflecting their chromosomal instability. Multiple myeloma is also recognized to be heterogeneous with distinct molecular subgroups. Deep genome sequencing studies have recently revealed an even wider heterogeneity and genomic instability with the identification of a complex mutational landscape and a branching pattern of clonal evolution. AREAS COVERED Despite the lack of full understanding of the exact mechanisms driving the genomic instability in MM, recent observations have correlated these abnormalities with impairments in the DNA damage repair machinery as well as epigenetic changes. These mechanisms and the resulting therapeutic implications will be the subject of this review. EXPERT OPINION By providing growth advantage of the fittest clone and promoting the acquisition of drug resistance, genomic instability is unarguably beneficial to MM cells, however, it may also well be its Achilles heal by creating exploitable vulnerabilities. As such, targeting presumptive DNA repair defects and other oncogenic addictions represent a promising area of clinical investigation. In particular, by inducing gene or pathway dependencies not present in normal cells, genomic instability can generate targets of contextual synthetic lethality in MM cells.
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Affiliation(s)
- Paola Neri
- University of Calgary, Division of Hematology and Bone Marrow Transplant, Hospital Drive NW, Calgary, AB T2N4N1, Canada
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Chen J, Pande M, Huang YJ, Wei C, Amos CI, Talseth-Palmer BA, Meldrum CJ, Chen WV, Gorlov IP, Lynch PM, Scott RJ, Frazier ML. Cell cycle-related genes as modifiers of age of onset of colorectal cancer in Lynch syndrome: a large-scale study in non-Hispanic white patients. Carcinogenesis 2012; 34:299-306. [PMID: 23125224 DOI: 10.1093/carcin/bgs344] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Heterogeneity in age of onset of colorectal cancer in individuals with mutations in DNA mismatch repair genes (Lynch syndrome) suggests the influence of other lifestyle and genetic modifiers. We hypothesized that genes regulating the cell cycle influence the observed heterogeneity as cell cycle-related genes respond to DNA damage by arresting the cell cycle to provide time for repair and induce transcription of genes that facilitate repair. We examined the association of 1456 single nucleotide polymorphisms (SNPs) in 128 cell cycle-related genes and 31 DNA repair-related genes in 485 non-Hispanic white participants with Lynch syndrome to determine whether there are SNPs associated with age of onset of colorectal cancer. Genotyping was performed on an Illumina GoldenGate platform, and data were analyzed using Kaplan-Meier survival analysis, Cox regression analysis and classification and regression tree (CART) methods. Ten SNPs were independently significant in a multivariable Cox proportional hazards regression model after correcting for multiple comparisons (P < 5 × 10(-4)). Furthermore, risk modeling using CART analysis defined combinations of genotypes for these SNPs with which subjects could be classified into low-risk, moderate-risk and high-risk groups that had median ages of colorectal cancer onset of 63, 50 and 42 years, respectively. The age-associated risk of colorectal cancer in the high-risk group was more than four times the risk in the low-risk group (hazard ratio = 4.67, 95% CI = 3.16-6.92). The additional genetic markers identified may help in refining risk groups for more tailored screening and follow-up of non-Hispanic white patients with Lynch syndrome.
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Affiliation(s)
- Jinyun Chen
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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The impact of pharmacogenetics on radiation therapy outcome in cancer patients. A focus on DNA damage response genes. Cancer Treat Rev 2012; 38:737-59. [DOI: 10.1016/j.ctrv.2012.02.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 02/03/2012] [Accepted: 02/06/2012] [Indexed: 11/18/2022]
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Single-nucleotide polymorphism rs1052501 associated with monoclonal gammopathy of undetermined significance and multiple myeloma. Leukemia 2012; 27:515-6. [PMID: 22945773 DOI: 10.1038/leu.2012.232] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Cifci S, Yilmaz M, Pehlivan M, Sever T, Okan V, Pehlivan S. DNA repair genes polymorphisms in multiple myeloma: no association with XRCC1 (Arg399Gln) polymorphism, but the XRCC4 (VNTR in intron 3 and G-1394T) and XPD (Lys751Gln) polymorphisms is associated with the disease in Turkish patients. ACTA ACUST UNITED AC 2012; 16:361-7. [PMID: 22183071 DOI: 10.1179/102453311x13127324303399] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE This study aims to investigate the association between the polymorphisms in DNA repair genes (XPD, XRCC1, and XRCC4) and clinical parameters in patients with multiple myeloma (MM), their effects on prognosis and their roles in susceptibility to MM. PATIENTS AND METHODS Sixty patients, diagnosed with MM and 70 individuals as the healthy control group were included in the study. Gene polymorphisms were detected with the polymerase chain reaction and/or polymerase chain reaction-restriction fragment length polymorphism method. When the genotype frequencies of XPD (Llys751Gln) and XRCC1 (Arg399Gln) genes were examined in the patient and control groups, no significant difference was detected, while a significant association was found in XRCC4 (VNTR in intron 3 and G-1394T) polymorphisms. A significant association was found in the MM patients group for AA genotype and event-free survival (EFS) in terms of XPD (751) gene polymorphism (P = 0.047). When VNTR intron 3 polymorphism was compared for genotype frequency, DD genotype was found to be significantly low (P = 0.012) in the patient group, whereas GG and TT genotypes were found to be significantly lower in the patient group for the genotype frequency XRCC4 (G-1394T) polymorphism when compared to the control group (P = 0.015, P = 0.010, respectively). RESULTS These data provide support for the hypothesis that a common variation in the genes encoding XRCC4 DNA repair proteins may contribute to susceptibility to myeloma. These findings require further validation in independent populations.
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Affiliation(s)
- S Cifci
- Department of Internal Medicine, School of Medicine, Gaziantep, Turkey
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Bau DT, Lin CC, Chiu CF, Tsai MH. Role of nonhomologous end-joining in oral cancer and personalized pharmacogenomics. Biomedicine (Taipei) 2012. [DOI: 10.1016/j.biomed.2011.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Familial monoclonal gammopathy of undetermined significance and multiple myeloma: epidemiology, risk factors, and biological characteristics. Blood 2012; 119:5359-66. [PMID: 22354002 DOI: 10.1182/blood-2011-11-387324] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Monoclonal gammopathy of undetermined significance (MGUS), a precursor to multiple myeloma (MM), is one of the most common premalignant conditions in the general population. The cause of MGUS is largely unknown. Recent studies show that there is an increased prevalence of MGUS in blood relatives of persons with lymphoproliferative and plasma cell proliferative disorders, suggesting presence of shared underlying genetic influences. In the past few years, additional studies have examined risk factors and biologic characteristics that may contribute to the increased prevalence of MGUS among relatives of probands with MGUS, MM, and other blood malignancies. This article reviews the known epidemiology and risk factors for familial MGUS and myeloma, the risk of lymphoproliferative disorders and other malignancies among blood-relatives of patients with MGUS and MM, and discusses future directions for research.
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Polymorphisms in xenobiotic transporters ABCB1, ABCG2, ABCC2, ABCC1, ABCC3 and multiple myeloma risk: a case-control study in the context of the International Multiple Myeloma rESEarch (IMMEnSE) consortium. Leukemia 2011; 26:1419-22. [PMID: 22182917 DOI: 10.1038/leu.2011.352] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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35
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Vangsted A, Klausen TW, Vogel U. Genetic variations in multiple myeloma I: effect on risk of multiple myeloma. Eur J Haematol 2011; 88:8-30. [PMID: 21883480 DOI: 10.1111/j.1600-0609.2011.01700.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Few risk factors have been established for the plasma cell disorder multiple myeloma, but some of these like African American ethnicity and a family history of B-cell lymphoproliferative diseases suggest a genetic component for the disease. Genetic variation represents the genetic basis of variability in a population. The complex interplay between environment and genes for the development of cancer may therefore be influenced by genetic variations. A genetic variation may change the function of the gene, and if the genetic variation is associated with the risk of disease, that particular gene may be involved in the pathogenesis of disease. Genes of interest are genes involved in the normal development and function of the plasma cell and genes that protect us against exposures from the environment, for example, genes involved in the metabolism of xenobiotics, metabolism of folate and methionine, as well as genes involved in inflammation and DNA repair. Identification of genes with potential influence on cancer risk may help us to establish relevant laboratory studies on exposure and dose-response assessment and may help us to test the hypothesis in epidemiological studies. Knowledge of individual at high risk of cancer may offer promising insight for the prevention of cancer.
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Affiliation(s)
- Annette Vangsted
- Department of Haematology, Roskilde Hospital, Copenhagen University, Roskilde, Denmark.
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Variations in suppressor molecule ctla-4 gene are related to susceptibility to multiple myeloma in a polish population. Pathol Oncol Res 2011; 18:219-26. [PMID: 21744007 PMCID: PMC3313022 DOI: 10.1007/s12253-011-9431-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Accepted: 06/22/2011] [Indexed: 01/02/2023]
Abstract
Various phenotype and functional T-cell abnormalities are observed in multiple myeloma (MM) patients. The aim of this study was to investigate the association between polymorphisms in the gene encoding cytotoxic T-lymphocyte antigen-4 (CTLA-4), a negative regulator of the T-lymphocyte immune response and susceptibility to multiple myeloma in a Polish population. Two hundred MM patients and 380 healthy subjects were genotyped for the following polymorphisms: CTLA-4c.49A>G, CTLA-4g.319C>T, CTLA-4g.*642AT(8_33), CT60 (CTLA-4g.*6230G>A), Jo31 (CTLA-4g.*10223G>T). Our study is the largest and most comprehensive evaluation to date of the association between genetic polymorphisms in the CTLA-4 molecule and multiple myeloma. It was found that CTLA-4c.49A>G[G], CT60[G], and Jo31[G] alleles were more frequently observed in MM patients than in controls (0.50 vs. 0.44, p = 0.03, 0.65 vs. 0.58, p = 0.04, and 0.63 vs. 0.57, p = 0.03, respectively). Moreover, the haplotype CTLA-4c.49A>G[G], CTLA-4g.319C>T[C], CTLA-4g.*642AT(8_33) [8], CT60[G], Jo31[G] including all susceptibility alleles increases the risk of MM about fourfold (OR: 3.79, 95%CI: 2.08–6.89, p = 0.00001). These findings indicate that genetic variations in the CTLA-4 gene play role in susceptibility to multiple myeloma and warrant further investigation through replication studies.
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Bau DT, Tsai CW, Wu CN. Role of the XRCC5/XRCC6 dimer in carcinogenesis and pharmacogenomics. Pharmacogenomics 2011; 12:515-34. [PMID: 21521024 DOI: 10.2217/pgs.10.209] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Over the past few decades, the incidence of cancer has rapidly increased all over the world and cancer remains a major threat to public health. It is believed that cancer results from a series of genetic alterations that lead to the progressive disorder of the normal mechanisms controlling cell proliferation, differentiation, death and/or genomic stability. The response of the cell to genetic injury and its ability to maintain genomic stability by means of a variety of DNA repair mechanisms are therefore essential in preventing tumor initiation and progression. From the same viewpoint, the relative role of DNA repair as a biomarker for prognosis, predictor of drug and therapy responses or indeed as a target for novel gene therapy, is very promising. In this article, we have summarized the studies investigating the association between the XRCC5/XRCC6 dimer and the susceptibility to multiple cancers and discuss its role in carcinogenesis and its potential application to anticancer drug discovery.
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Affiliation(s)
| | - Chia-Wen Tsai
- Terry Fox Cancer Research Laboratory, China Medical University Hospital, 2 Yuh-Der Road, Taichung, 404 Taiwan, Republic of China
| | - Cheng-Nan Wu
- Terry Fox Cancer Research Laboratory, China Medical University Hospital, 2 Yuh-Der Road, Taichung, 404 Taiwan, Republic of China
- Department of Medical Laboratory Science & Biotechnology, Central-Taiwan University of Science & Technology, Taichung, Taiwan, Republic of China
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Economopoulou P, Pappa V, Papageorgiou S, Dervenoulas J, Economopoulos T. Abnormalities of DNA repair mechanisms in common hematological malignancies. Leuk Lymphoma 2011; 52:567-82. [DOI: 10.3109/10428194.2010.551155] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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39
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Cibeira MT, de Larrea CF, Navarro A, Díaz T, Fuster D, Tovar N, Rosiñol L, Monzó M, Bladé J. Impact on response and survival of DNA repair single nucleotide polymorphisms in relapsed or refractory multiple myeloma patients treated with thalidomide. Leuk Res 2011; 35:1178-83. [PMID: 21435719 DOI: 10.1016/j.leukres.2011.02.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 02/02/2011] [Accepted: 02/08/2011] [Indexed: 12/26/2022]
Abstract
Single nucleotide polymorphisms (SNPs) in 12 genes involving multidrug resistance, drug metabolic pathways, DNA repair systems and cytokines were examined in 28 patients with relapsed/refractory multiple myeloma (MM) treated with single agent thalidomide and the results were correlated with response, toxicity and overall survival (OS). The response rate was higher in patients with SNPs in ERCC1 (rs735482) (p=0.006), ERCC5 (rs17655) (p=0.04) or XRCC5 (rs1051685) (p=0.013). Longer OS was associated with the SNP in ERCC1 (rs735482) (p=0.005) and XRCC5 (rs1051685) (p=0.02). Finally, polymorphism in GSTT1 (rs4630) was associated with a lower frequency of thalidomide-induced peripheral neuropathy (p=0.04).
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Affiliation(s)
- María Teresa Cibeira
- Department of Hematology, Hospital Clínic, Barcelona, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
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Ginsberg G, Angle K, Guyton K, Sonawane B. Polymorphism in the DNA repair enzyme XRCC1: utility of current database and implications for human health risk assessment. Mutat Res 2011; 727:1-15. [PMID: 21352951 DOI: 10.1016/j.mrrev.2011.02.001] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2010] [Revised: 02/10/2011] [Accepted: 02/16/2011] [Indexed: 11/29/2022]
Abstract
Genetic polymorphisms are increasingly recognized as sources of variability not only in toxicokinetic but also in toxicodynamic response to environmental agents. XRCC1 is involved in base excision repair (BER) of DNA; it has variant genotypes that are associated with modified repair function. This analysis focuses on four polymorphisms: three in the coding region that affect protein structure and one in an upstream regulatory sequence that affects gene expression. The Arg399Gln variant is the most widely studied with evidence supporting a quantitative effect of genotype on phenotype. The homozygous variant (Gln/Gln) can have 3-4-fold diminished capacity to remove DNA adducts and oxidized DNA damage. This variant is relatively common in Caucasians and Asians where approximately 10% are homozygous variant. In contrast, the Arg194Trp variant appears to protect against genotoxic effects although the degree to which DNA repair is enhanced by this polymorphism is uncertain. The homozygous variant is rare in Caucasians and African Americans but it is present at 7% in Asians. A third coding region polymorphism at codon 280 appears to decrease repair function but additional quantitative information is needed and the homozygous variant is rare across populations studied. A polymorphism in an upstream promoter binding sequence (-77T>C) appears to lower XRCC1 levels by decreasing gene expression. Based upon genotype effect on phenotype and allele frequency, the current analysis finds that the codon 399 and upstream (-77) polymorphisms have the greatest potential to affect the toxicodynamic response to DNA damaging agents. However, the implications for risk assessment are limited by the likelihood that polymorphisms in multiple BER genes interact to modulate DNA repair.
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Affiliation(s)
- Gary Ginsberg
- Connecticut Dept of Public Health, Hartford, CT, United States.
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Host DNA repair proteins in response to Pseudomonas aeruginosa in lung epithelial cells and in mice. Infect Immun 2010; 79:75-87. [PMID: 20956573 DOI: 10.1128/iai.00815-10] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Although DNA repair proteins in bacteria are critical for pathogens' genome stability and for subverting the host defense, the role of host DNA repair proteins in response to bacterial infection is poorly defined. Here, we demonstrate, for the first time, that infection with the Gram-negative bacterium Pseudomonas aeruginosa significantly altered the expression and enzymatic activity of 8-oxoguanine DNA glycosylase (OGG1) in lung epithelial cells. Downregulation of OGG1 by a small interfering RNA strategy resulted in severe DNA damage and cell death. In addition, acetylation of OGG1 is required for host responses to bacterial genotoxicity, as mutations of OGG1 acetylation sites increased Cockayne syndrome group B (CSB) protein expression. These results also indicate that CSB may be involved in DNA repair activity during infection. Furthermore, OGG1 knockout mice exhibited increased lung injury after infection with P. aeruginosa, as demonstrated by higher myeloperoxidase activity and lipid peroxidation. Together, our studies indicate that P. aeruginosa infection induces significant DNA damage in host cells and that DNA repair proteins play a critical role in the host response to P. aeruginosa infection, serving as promising targets for the treatment of this condition and perhaps more broadly Gram-negative bacterial infections.
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Wang Y, Wang L, Li X, Liu B, Zhao Q, Chen P, Wang T, Li T, Ji J, Yang F, Wang Q, Wang J, Xiao Y, Xu Y, Feng G, Peng Z, He L, He G. Polymorphisms of XRCC4 are involved in reduced colorectal cancer risk in Chinese schizophrenia patients. BMC Cancer 2010; 10:523. [PMID: 20920336 PMCID: PMC2958939 DOI: 10.1186/1471-2407-10-523] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2010] [Accepted: 10/04/2010] [Indexed: 11/29/2022] Open
Abstract
Background Genetic factors related to the regulation of apoptosis in schizophrenia patients may be involved in a reduced vulnerability to cancer. XRCC4 is one of the potential candidate genes associated with schizophrenia which might induce colorectal cancer resistance. Methods To examine the genetic association between colorectal cancer and schizophrenia, we analyzed five SNPs (rs6452526, rs2662238, rs963248, rs35268, rs2386275) covering ~205.7 kb in the region of XRCC4. Results We observed that two of the five genetic polymorphisms showed statistically significant differences between 312 colorectal cancer subjects without schizophrenia and 270 schizophrenia subjects (rs6452536, p = 0.004, OR 0.61, 95% CI 0.44-0.86; rs35268, p = 0.028, OR 1.54, 95% CI 1.05-2.26). Moreover, the haplotype which combined all five markers was the most significant, giving a global p = 0.0005. Conclusions Our data firstly indicate that XRCC4 may be a potential protective gene towards schizophrenia, conferring reduced susceptibility to colorectal cancer in the Han Chinese population.
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Affiliation(s)
- Yang Wang
- Bio-X Center, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China
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Do DNA repair genes OGG1, XRCC3 and XRCC7 have an impact on susceptibility to bladder cancer in the North Indian population? Mutat Res 2009; 680:56-63. [PMID: 19815090 DOI: 10.1016/j.mrgentox.2009.09.008] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2008] [Revised: 09/24/2009] [Accepted: 09/26/2009] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Polymorphisms in DNA repair genes may be associated with altered DNA repair capacity, thereby influencing an individual's susceptibility to smoking-related cancers such as bladder cancer. Therefore, we sought to examine the correlation between single nucleotide polymorphisms in DNA repair genes and bladder cancer. METHODOLOGY We undertook a case-control study of 212 urothelial bladder cancer (UBC) cases and 250 controls to investigate the association between OGG1 (C1245G rs1052133), XRCC3 (C18067T, rs861539) and XRCC7 (G6721T, rs7003908) polymorphisms and bladder cancer susceptibility by PCR-RFLP and the ARMS method. We also investigated gene-environment interactions. RESULTS The OGG1 GG genotype was associated with an elevated risk of urothelial bladder cancer (UBC) (OR, 2.10; p, 0.028). XRCC7 + 6721 GG was also associated with increased susceptibility to UBC (OR, 4.45; p, 0.001). In a recessive model, the OGG1 GG genotype showed an increased risk of TaG(2,3) + T1G(1-3) tumors. Additionally, the OGG1 GG genotype in non-smokers represented a 2.46-fold greater risk (OR, 2.46; p, 0.035) in bladder cancer patients. Subsequent analysis demonstrated more pronounced association of XRCC7 with smokers (OR, 4.39; p, 0.001). XRCC7 also showed increased association with TaG(2,3) + T1G(1-3) tumors and muscle invasive tumors (OR, 3.16; p, 0.001 and OR, 4.24; p, 0.001, respectively). Multiple Cox regression analysis in non-muscle invasive bladder tumor (NMIBT) patients demonstrated an association of the OGG1 GG polymorphism with a high risk of recurrence in patients on cystoscopic surveillance (HR, 4.04; p, 0.013). Subsequently, shorter recurrence-free survival (log rank p, 0.024; CC/GG, 42/24) was observed. CONCLUSION Our data suggest association of a variant (GG) genotype of OGG1 with increased UBC susceptibility and a high risk of tumor recurrence in NMIBT patients on cystoscopic surveillance. XRCC7 G allele carriers (TG+GG) are also at an elevated risk for susceptibility to UBC as evidenced by a high odds ratio throughout the analysis.
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El-Zein R, Monroy CM, Etzel CJ, Cortes AC, Xing Y, Collier AL, Strom SS. Genetic polymorphisms in DNA repair genes as modulators of Hodgkin disease risk. Cancer 2009; 115:1651-9. [PMID: 19280628 DOI: 10.1002/cncr.24205] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Although the pathogenesis of Hodgkin disease (HD) remains unknown, the results of epidemiologic studies suggest that heritable factors are important in terms of susceptibility. Polymorphisms in DNA repair genes may contribute to individual susceptibility for development of different cancers. However, to the authors' knowledge, few studies to date have investigated the role of such polymorphisms as risk factors for development of HD. METHODS The authors evaluated the relation between polymorphisms in 3 nucleotide excision repair pathway genes (XPD [Lys751Gln], XPC [Lys939Gln], and XPG [Asp1104His]), the base excision repair XRCC1 (Arg399Gln), and double-strand break repair XRCC3 (Thr241Met) in a population of 200 HD cases and 220 matched controls. Variants were investigated independently and in combination; odd ratios (OR) were calculated. RESULTS A positive association was found for XRCC1 gene polymorphism Arg399Gln (OR, 1.77; 95% confidence interval [95% CI], 1.16-2.71) and risk of HD. The combined analysis demonstrated that XRCC1/XRCC3 and XRCC1/XPC polymorphisms were associated with a significant increase in HD risk. XRCC1 Arg/Arg and XRCC3 Thr/Met genotypes combined were associated with an OR of 2.38 (95% CI, 1.24-4.55). The XRCC1 Arg/Gln and XRCC3 Thr/Thr, Thr/Met, and Met/Met genotypes had ORs of 1.88 (95% CI, 1.02-4.10), 1.97 (95% CI, 1.05-3.73), and 4.13 (95% CI, 1.50-11.33), respectively. XRCC1 Gln/Gln and XRCC3 Thr/Thr variant led to a significant increase in risk, with ORs of 3.00 (95% CI, 1.15-7.80). Similarly, XRCC1 Arg/Gln together with XPC Lys/Lys was found to significantly increase the risk of HD (OR, 2.14; 95% CI, 1.09-4.23). CONCLUSIONS These data suggest that genetic polymorphisms in DNA repair genes may modify the risk of HD, especially when interactions between the pathways are considered.
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Affiliation(s)
- Randa El-Zein
- Department of Epidemiology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030-1439, USA.
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Genetic variants in XRRC5 may predict development of venous thrombotic events in myeloma patients on thalidomide. Blood 2009; 113:5691-2. [DOI: 10.1182/blood-2009-03-211177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Hosgood HD, Baris D, Zhang Y, Berndt SI, Menashe I, Morton LM, Lee KM, Yeager M, Zahm SH, Chanock S, Zheng T, Lan Q. Genetic variation in cell cycle and apoptosis related genes and multiple myeloma risk. Leuk Res 2009; 33:1609-14. [PMID: 19362737 DOI: 10.1016/j.leukres.2009.03.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2008] [Revised: 03/11/2009] [Accepted: 03/12/2009] [Indexed: 11/18/2022]
Abstract
Genetic variation may be an important risk factor for multiple myeloma. A hallmark of tumor formation and growth is cell cycle dysregulation and apoptosis avoidance. We previously reported the association of genetic variation in caspase genes, the apoptotic-regulating family, and multiple myeloma risk. To further examine if genetic variation in key cell cycle and apoptosis genes alters multiple myeloma risk, we genotyped 276 tag SNPs in 27 gene regions in a population-based case-control study of non-Hispanic Caucasian women (108 cases; 482 controls) in Connecticut. Logistic regression assessed the effect of each SNP on multiple myeloma risk and the minP test assessed the association at the gene region level. Three gene regions were significantly associated with risk of multiple myeloma (BAX minP=0.018, CASP9 minP=0.025, and RIPK1 minP=0.037). Further explorations identified the most significant variant of BAX, RIPK1, and CASP9 to be rs1042265, rs9391981, and rs751643, respectively. The A variant at rs1042265 (OR(GA+AA)=0.40, 95% CI=0.21-0.78) and the C variant at rs9391981 (OR(GC+CC)=0.32, 95% CI=0.12-0.81) were associated with a decreased risk of multiple myeloma. The G variant at rs7516435 was associated with an increased risk of multiple myeloma (OR(AG)=1.48, 95% CI=0.94-2.32; OR(GG)=2.59, 95% CI=1.30-5.15; p(trend)=0.005). Haplotype analyses supported the SNP findings. These findings suggest that genetic variation in cell cycle and apoptosis genes may play a key role in multiple myeloma and warrant further investigation through replication studies.
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Affiliation(s)
- H Dean Hosgood
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, United States.
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Yang H, Lippman SM, Huang M, Jack Lee J, Wang W, Spitz MR, Wu X. Genetic polymorphisms in double-strand break DNA repair genes associated with risk of oral premalignant lesions. Eur J Cancer 2008; 44:1603-11. [PMID: 18579371 DOI: 10.1016/j.ejca.2008.05.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2008] [Revised: 05/06/2008] [Accepted: 05/12/2008] [Indexed: 11/27/2022]
Abstract
Oral premalignant lesions (OPLs) are early genetic events en route to oral cancer. To identify individuals susceptible to OPL is critical to the prevention of oral cancer. In a case-control study consisting of 147 patients with histologically confirmed OPL and 147 matched controls, we evaluated the associations of 10 genetic variants in nine genes of the double-strand break (DSB) DNA repair pathway with OPL risk. The most notable finding was an intronic polymorphism (A17893G) of the XRCC3 gene. Compared with the homozygous wild-type AA genotype, the odds ratio (OR) (95% confidence interval [CI]) for the heterozygous AG and homozygous variant GG genotype was 0.85 (0.49-1.48) and 0.18 (0.07-0.47), respectively (P for trend=0.002). In addition, compared with the most common A-C haplotypes of XRCC3 (in the order of A17893G-T241M), the G-C haplotypes were associated with a significantly decreased risk of OPL (OR=0.40, 95% CI 0.23-0.68). Moreover, compared with individuals without the G-C haplotype, the OR was 1.04 (0.56-1.95) and 0.20 (0.08-0.51) for subjects with one copy and two copies of the G-C haplotypes, respectively (P for trend=0.005). Classification and regression tree (CART) analysis further revealed potential high-order gene-gene and gene-environmental interactions and categorised subjects into different risk groups according to their specific polymorphic signatures. Overall, our study provides the first epidemiological evidence supporting a connection between DSB gene variants and OPL development. Our data also suggest that the effects of high-order interactions should be taken into consideration when evaluating OPL predisposition.
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Affiliation(s)
- Hushan Yang
- Department of Epidemiology, The University of Texas M.D. Anderson Cancer Center, Unit 1340, 1515 Holcombe Blvd., Houston, TX 77030, USA
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