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Kudhair BK, Alabid NN, Zayed KS, Lafta IJ, Taheri-Kafrani A. The correlation of combined OGG1, CYP1A1 and GSTP1 gene variants and risk of lung cancer of male Iraqi waterpipe tobacco smokers. Mol Biol Rep 2020; 47:5155-5163. [PMID: 32577993 DOI: 10.1007/s11033-020-05589-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 06/11/2020] [Indexed: 12/12/2022]
Abstract
Genetic polymorphisms of genes whose products are responsible for activities, such as xenobiotic metabolism, mutagen detoxification and DNA-repair, have been predicted to be associated with the risk of developing lung cancer (LC). The association of LC with tobacco smoking has been extensively investigated, but no studies have focused on the Arab ethnicity. Previously, we examined the association between genetic polymorphisms among Phase I and Phase II metabolism genes and the risk of LC. Here, we extend the data by examining the correlation of OGG1 Ser326Cys combined with CYP1A1 (Ile462Val and MspI) and GSTP1 (Ile105Val and Ala103Val) polymorphisms with the risk of LC. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and gene sequencing were carried out for genotyping the OGG1 polymorphisms of 123 LC patients and 129 controls. No significant differences in the frequencies of the OGG1 mutant allele between patients and controls were found. The distributions of heterozygous Ser/Cys or Cys/Cys genotypes of OGG1 were not associated with the risk of LC either according to the histological types of LC or based on waterpipe tobacco (WP) smoking status. In contrast, the combined effect of OGG1 variants with CYP1A1 and GSTP1 variants revealed a significant correlation with the OGG1 Ser326Cys-CYP1A1 MspI variants pairing. This association was significant (p = 0.001) in individuals who carried homozygous or heterozygous variant type genotypes of both genes in a reference with carriers of both wild-type genotypes (wt/wt - wt/wt). The odds ratios were 2.99 (95% CI 1.67-5.36), 2.68 (95% CI 1.08-6.62), and 2.80 (95% CI 1.18-6.69) for those who carried (wt/wt - wt/vt + vt/vt), (wt/vt + vt/vt - wt/wt), and (wt/vt + vt/vt - wt/vt + vt/vt), respectively. The study suggests a limited correlation is present between carrying OGG1 Ser326Cys polymorphism and the risk of developing LC in Arab populations.
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Affiliation(s)
- Bassam K Kudhair
- Department of Laboratory Investigations, Faculty of Science, University of Kufa, 54001, Najaf, Iraq.
| | - Noralhuda N Alabid
- Department of Urban Planning, Faculty of Physical Planning, University of Kufa, 54001, Najaf, Iraq
| | - Karrar S Zayed
- Department of Laboratory Investigations, Faculty of Science, University of Kufa, 54001, Najaf, Iraq
| | - Inam J Lafta
- Department of Microbiology, College of Veterinary Medicine, University of Baghdad, Baghdad, 10071, Iraq
| | - Asghar Taheri-Kafrani
- Department of Biotechnology, Faculty of Advanced Sciences and Technologies, University of Isfahan, 81746-73441, Isfahan, Iran
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Ma Y, Yang X, Xie YP, Yi C, Zhao F, Huang Y. Association of Matrix Metalloproteinase1-1607 1G>2G Polymorphism and Lung Cancer Risk: An Update by Meta-Analysis. Asian Pac J Cancer Prev 2019; 20:1841-1847. [PMID: 31244308 PMCID: PMC7021599 DOI: 10.31557/apjcp.2019.20.6.1841] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Indexed: 02/05/2023] Open
Abstract
Objective: The association between matrix metalloproteinase1 (MMP1)-1607 1G>2G polymorphism and lung cancer risk is still inconclusive and inconsistent. We conducted a meta-analysis to estimate the potential relationship between MMP1-1607 1G>2G polymorphism and lung cancer risk. Methods: The comprehensive searches of the PubMed, Web of Science, Medline, CBM, CNKI, Weipu, and Wanfang databases, published up to Nov 10, 2018. Statistical analyses were performed with Review Manager 5.3 software. Results: A total of 14 relevant studies containing 6068 cases and 5860 controls were included in the study. The results indicated that MMP1-1607 1G>2G polymorphism was significantly associated with increased lung cancer risk under four models: 2G vs. 1G model (pooled OR = 1.19, 95% CI = 1.05-1.34, P < 0.0001); 2G/2G vs. 1G/1G (pooled OR = 1.34, 95% CI = 1.09-1.64, P = 0.003); 2G/2G vs. 1G/1G+1G/2G (pooled OR = 1.26, 95% CI = 1.06-1.49, P < 0.0001); 2G/2G+1G/2G vs. 1G/1G (pooled OR = 1.21, 95% CI = 1.05-1.40, P = 0.01). Subgroup analyses showed that there was a higher increase in smoking status under three models: 2G/2G vs. 1G/1G (pooled OR = 2.07, 95% CI = 1.14-3.77, P = 0.02); 2G/2G vs. 1G/1G+1G/2G (pooled OR = 1.71, 95% CI = 1.17-2.52, P = 0.006); 2G/2G+1G/2G vs. 1G/1G (pooled OR = 2.03, 95% CI = 1.14-3.62, P = 0.02). In addition, subgroup analyses by ethnicity further identified the significant association in Asians. Non-smoking population and ethnicity among Caucasian had no relationship with lung cancer susceptibility in four models. Conclusion: Our study suggested that MMP1-1607 1G>2G polymorphism was a risk factor for developing lung cancer risk.
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Affiliation(s)
- Yue Ma
- Department of Pathophysiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, Sichuan Province, China.
| | - Xi Yang
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yu-Ping Xie
- Department of Oncology, Chengdu First People's Hospital, Chengdu 610041, Sichuan Province, China
| | - Cheng Yi
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Fen Zhao
- Department of Oncology, Chengdu First People's Hospital, Chengdu 610041, Sichuan Province, China
| | - Ying Huang
- Department of Pathophysiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, Sichuan Province, China.
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Prayuni K, Razari I, Yuliwulandari R. Glutathione S-transferase M1 and T1 null allele frequencies among Indonesian ethnics toward improved disease risk assessment. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2019; 65:14-17. [PMID: 30471640 DOI: 10.1016/j.etap.2018.10.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 10/26/2018] [Indexed: 06/09/2023]
Abstract
Genetic variations in the glutathione S-transferase genes GSTT1 and GSTM1 have been widely studied, and homozygous deletions or null genotypes have been reported in different populations. Previous studies suggest that individuals who are homozygous-null at the GSTM1 or GSTT1 locus may have an increased risk of environmentally related cancers and drug-induced hepatotoxicity. The aim of the present study was to determine the GSTM1 and GSTT1 polymorphisms in 154 healthy, unrelated individuals from the Javanese-Sundanese and Malay ethnic populations of Indonesia to provide a resource for improving the prognosis of possible susceptibilities in specific populations. The subjects were genotyped for the presence of GSTM1 and GSTT1 using the multiplex polymerase chain reaction technique. The GSTM1-null genotype was more frequent among Javanese-Sundanese ethnics (99%) than among the Indonesian Malay (67.2%). Similarly, Javanese-Sundanese ethnics showed a higher frequency of the GSTT1-null genotype (66.7%) than the Indonesian Malay (36.2%). Analysis of the combined distribution of the GSTM1 and GSTT1 genes revealed that 66.7% of the individuals from the Javanese-Sundanese population lack both the genes, whereas only 21.1% of the Indonesian Malay is GSTM1-null and GSTT1-null. This study contributes significant information on the variability of GSTT1 and GSTM1 gene polymorphisms worldwide, which can provide new knowledge about the relationship between ethnicity and the prevalence of certain diseases.
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Affiliation(s)
- Kinasih Prayuni
- Genetic/Genomic Research Center, YARSI Research Institute, Universitas YARSI, Cempaka Putih, Jakarta Pusat, DKI Jakarta, Indonesia
| | - Intan Razari
- Genetic/Genomic Research Center, YARSI Research Institute, Universitas YARSI, Cempaka Putih, Jakarta Pusat, DKI Jakarta, Indonesia
| | - Rika Yuliwulandari
- Genetic/Genomic Research Center, YARSI Research Institute, Universitas YARSI, Cempaka Putih, Jakarta Pusat, DKI Jakarta, Indonesia; Department of Pharmacology, Faculty of Medicine, Universitas YARSI, Cempaka Putih, Jakarta Pusat, DKI Jakarta, Indonesia; The Indonesian Pharmacogenomics Working Group, DKI Jakarta, Indonesia.
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Suthar PC, Purkait P, Uttaravalli K, Sarkar BN, Ameta R, Sikdar M. Glutathione S-transferase M1 and T1 null genotype frequency distribution among four tribal populations of western India. J Genet 2018. [DOI: 10.1007/s12041-018-0888-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Palma-Cano LE, Córdova EJ, Orozco L, Martínez-Hernández A, Cid M, Leal-Berumen I, Licón-Trillo A, Lechuga-Valles R, González-Ponce M, González-Rodríguez E, Moreno-Brito V. GSTT1 and GSTM1 null variants in Mestizo and Amerindian populations from northwestern Mexico and a literature review. Genet Mol Biol 2017; 40:727-735. [PMID: 29111561 PMCID: PMC5738617 DOI: 10.1590/1678-4685-gmb-2016-0142] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 04/05/2017] [Indexed: 12/21/2022] Open
Abstract
The GSTT1 and GSTM1 genes are key molecules in
cellular detoxification. Null variants in these genes are associated with
increase susceptibility to developing different types of cancers. The aim of
this study was to determine the prevalence of GSTT1 and
GSTM1 null genotypes in Mestizo and Amerindian individuals
from the Northwestern region of Mexico, and to compare them with those reported
worldwide. GSTT1 and GSTM1 null variants were
genotyped by multiplex PCR in 211 Mestizos and 211 Amerindian individuals.
Studies reporting on frequency of GSTT1 and
GSTM1 null variants worldwide were identified by a PubMed
search and their geographic distribution were analyzed. We found no significant
differences in the frequency of the null genotype for GSTT1 and
GSM1 genes between Mestizo and Amerindian individuals.
Worldwide frequencies of the GSTT1 and GSTM1
null genotypes ranges from 0.10 to 0.51, and from 0.11 to 0.67, respectively.
Interestingly, in most countries the frequency of the GSTT1
null genotype is common or frequent (76%), whereas the frequency of the
GSMT1 null genotype is very frequent or extremely frequent
(86%). Thus, ethnic-dependent differences in the prevalence of
GSTT1 and GSTM1 null variants may
influence the effect of environmental carcinogens in cancer risk.
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Affiliation(s)
- Luz Elena Palma-Cano
- Department of Biochemistry, Faculty of Medicine and Biomedical Science, Autonomus University of Chihuahua, Chihuahua, Chihuahua, Mexico
| | - Emilio J Córdova
- Department of Clinical Research, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Lorena Orozco
- Department of Clinical Research, National Institute of Genomic Medicine, Mexico City, Mexico
| | | | - Miguel Cid
- Department of Clinical Research, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Irene Leal-Berumen
- Department of Biochemistry, Faculty of Medicine and Biomedical Science, Autonomus University of Chihuahua, Chihuahua, Chihuahua, Mexico
| | - Angel Licón-Trillo
- Department of Biochemistry, Faculty of Medicine and Biomedical Science, Autonomus University of Chihuahua, Chihuahua, Chihuahua, Mexico
| | - Ruth Lechuga-Valles
- Department of Molecular Biology, Faculty of Zootechnics and Ecology, Autonomus University of Chihuahua, Chihuahua, Chihuahua, Mexico
| | - Mauricio González-Ponce
- Department of Biochemistry, Faculty of Medicine and Biomedical Science, Autonomus University of Chihuahua, Chihuahua, Chihuahua, Mexico
| | - Everardo González-Rodríguez
- Department of Molecular Biology, Faculty of Zootechnics and Ecology, Autonomus University of Chihuahua, Chihuahua, Chihuahua, Mexico
| | - Verónica Moreno-Brito
- Department of Biochemistry, Faculty of Medicine and Biomedical Science, Autonomus University of Chihuahua, Chihuahua, Chihuahua, Mexico
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Yang WJ, Wang MY, Pan FZ, Shi C, Cen H. Association between MPO-463G > A polymorphism and cancer risk: evidence from 60 case-control studies. World J Surg Oncol 2017; 15:144. [PMID: 28764808 PMCID: PMC5539634 DOI: 10.1186/s12957-017-1183-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 06/22/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Though a number of studies have been conducted to explore the association between myeloperoxidase (MPO)-463G > A polymorphism and cancer risk, the results remain inconsistent. Therefore, we performed a meta-analysis to derive a more systematic estimation of this relationship. METHOD Relevant studies were searched by PubMed, EMBASE, CNKI, Google Scholar, Ovid, and Cochrane library prior to December 2015. The strength of the association between MPO-463G > A polymorphism and cancer risk was estimated by odds ratios (OR) with 95% confidence interval (95%CI). Cumulative analysis was used to evaluate the stability of results through time. RESULTS The current analysis consisted of 16,858 cases and 21,756 controls from 60 studies. Pooled results showed that MPO-463G > A polymorphism were associated with the overall decreased cancer susceptibility in all the genetic models included in this study (additive model: OR = 0.84, 95%CI = 0.76-0.94; allele genetic model: OR = 0.90, 95%CI = 0.840-0.954; recessive genetic model: OR = 0.89, 95%CI = 0.83-0.95). However, in the stratified analysis of cancer type, the significant results were only found in lung cancer (dominant model: OR = 0.93, 95%CI = 0.87-0.99) and digestive system cancer groups (dominant model: OR = 0.67 0.53-0.84; allele frequency model = 0.71, 95%CI = 0.57-0.87), but not in the blood system cancer or breast cancer group. When we further stratified the digestive system cancer group into digestive tract and digestive gland cancer groups, results showed a significant association between allele A of MPO-463G > A and digestive gland cancer in all the genetic models (allele frequency model: OR = 0.63, 95%CI = 0.40-0.99; additive model: OR = 0.41, 95%CI = 0.23-0.73; recessive model: OR = 0.51, 95%CI = 0.29-0.89; dominant model: OR = 0.58, 95%CI = 0.35-0.96), digestive tract cancers in allele frequency model (OR = 0.75, 95%CI = 0.59-0.95), and dominant model (OR = 0.72, 95%CI = 0.56-0.92). When stratified by ethnicity, results demonstrated that the genotype A might be a protect factor for both Caucasians and Asians. In group analysis according to source of controls, significant results were found in population from hospital in all the genetic models. In cumulative analysis, result of allele contrast showed a declining trend and increasingly narrower 95% overall, while the inclination toward non-significant association with lung cancer risk. CONCLUSIONS This meta-analysis suggested that MPO-463G > A polymorphism was associated with the overall reduced cancer susceptibility significantly. It might be a more reliable predictor of digestive system cancer instead of lung cancer, blood system cancer, and breast cancer. In cumulative analysis, the stable trend indicated that evidence was sufficient to show the association between MPO-463G > A polymorphism and cancer risk.
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Affiliation(s)
- Wen-Jun Yang
- Department of Gastroenterology, The Second Affiliated Hospital of Guilin Medical University, Gui Lin, 541100, China
| | - Ming-Yue Wang
- Department of Chemotherapy, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Fu-Ze Pan
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Chen Shi
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Hong Cen
- Department of Chemotherapy, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China.
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Malik SS, Masood N, Baig M, Yasmin A. The association of GSTM1 and GSTT1 deletion polymorphisms with lung cancer risk: Evidence from an updated meta-analysis. Meta Gene 2017. [DOI: 10.1016/j.mgene.2016.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Abstract
In first part of this study, a systematic review was designed to explore the involvement of CYP1A1 and GSTP1 genes in breast cancerogenesis. Based on systematic review, we designed a study to screen CYP1A1 and GSTP1 genes for mutation and their possible association with breast carcinogenesis. A total of 400 individuals were collected and analyzed by PCR-SSCP. After sequence analysis of coding region of CYP1A1 we identified eleven mutations in different exons of respective gene. Among these eleven mutations, ~3 folds increased breast cancer risk was found associated with Asp82Glu mutation (OR 2.99; 95% CI 1.26-7.09), with Ser83Thr mutation (OR 2.99; 95% CI 1.26-7.09) and with Glu86Ala mutation (OR 3.18; 95% CI 1.27-7.93) in cancer patients compared to controls. Furthermore, ~4 folds increase in breast cancer risk was found associated with Asp347Glu, Phe398Tyr and 5178delT mutations (OR 3.92; 95% CI 1.35-11.3) in patients compared to controls. The sequence analysis of GSTP1 resulted in identification of total five mutations. Among these five mutations, ~3 folds increase in breast cancer risk was observed associated with 1860G>A mutation, with 1861-1876delCAGCCCTCTGGAGTGG mutation (OR 2.70; 95% CI 1.10-6.62) and with 1861C>A mutation (OR 2.97; 95% CI 1.01-8.45) in cancer patients compared to controls. Furthermore, ~5 folds increase in breast cancer risk was associated with 1883G>T mutation (OR 4.75; 95% CI 1.46-15.3) and ~6 folds increase in breast cancer risk was found associated with Iso105Val mutation (OR 6.43; 95% CI 1.41-29.3) in cancer patients compared to controls. Our finding, based on systematic review and experimental data suggest that the polymorphic CYP1A1 and GSTP1 genes may contribute to risk of developing breast cancer.
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Polymorphisms in metabolism and repair genes affects DNA damage caused by open-cast coal mining exposure. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2016; 808:38-51. [DOI: 10.1016/j.mrgentox.2016.08.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 07/31/2016] [Accepted: 08/09/2016] [Indexed: 02/05/2023]
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Zou H, Li Q, Xia W, Liu Y, Wei X, Wang D. Association between the OGG1 Ser326Cys Polymorphism and Cancer Risk: Evidence from 152 Case-Control Studies. J Cancer 2016; 7:1273-80. [PMID: 27390603 PMCID: PMC4934036 DOI: 10.7150/jca.15035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 04/26/2016] [Indexed: 01/14/2023] Open
Abstract
Although it has been suggested that the 8-oxoguanine DNA glycosylase (OGG1) gene Ser326Cys polymorphism may be a risk factor for cancer, the conclusions from previous studies are inconsistent. Thus, we conducted an updated meta-analysis to estimate the effect of OGG1 variant genotypes on cancer susceptibility. We searched the PubMed for all eligible studies published in English for the period ending September 2014. We found the association between OGG1 Ser326Cys polymorphism and cancer susceptibility based on 152 case-control studies in different genetic model comparisons (dominant model: OR = 1.053, P = 0.018; recessive model: OR = 1.108, P < 0.001; homozygote: OR = 1.135, P < 0.001; additive model: OR = 1.059, P < 0.001). However, the results from the subgroup analyses based on types of cancer, health population as controls or studies with relatively large sample size did not support the conclusion. Although the overall results of this meta-analysis showed a positive association between OGG1 variant genotypes and cancer susceptibility, the subgroup analyses by cancer type, sample size, and source of controls presented inconsistent results. Therefore, the current evidence from the meta-analysis did not support the hypothesis of OGG1 Ser326Cys polymorphism as a risk factor of cancer.
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Affiliation(s)
- Hua Zou
- 1. Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Qing Li
- 1. Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Wei Xia
- 1. Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
| | - Yong Liu
- 3. Intensive care unit, Suining Central Hospital, Deshengxi Road 127, Chuanshan District, Suining, Sichuan 629000, China
| | - Xi Wei
- 2. Department of Diagnostic and Therapeutic Ultrasonography, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Dong Wang
- 1. Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing 400042, China
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Association between the CYP2E1 polymorphisms and lung cancer risk: a meta-analysis. Mol Genet Genomics 2014; 290:545-58. [DOI: 10.1007/s00438-014-0941-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Accepted: 09/23/2014] [Indexed: 01/09/2023]
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Songserm N, Promthet S, Pientong C, Ekalaksananan T, Chopjitt P, Wiangnon S. Gene-environment interaction involved in cholangiocarcinoma in the Thai population: polymorphisms of DNA repair genes, smoking and use of alcohol. BMJ Open 2014; 4:e005447. [PMID: 25335960 PMCID: PMC4208049 DOI: 10.1136/bmjopen-2014-005447] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 09/22/2014] [Accepted: 09/24/2014] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE Cholangiocarcinoma (CCA) is the most common malignancy in a Northeast Thai population. Smoking and alcohol drinking are associated with the production of free radical intermediates, which can cause several types of DNA lesions. Reduced repair of these DNA lesions would constitute an important risk factor for cancer development. We therefore examined whether polymorphisms in DNA base-excision repair (BER) genes, XRCC1 G399A and OGG1 C326G, were associated with CCA risk and whether they modified the effect of smoking and alcohol drinking in the Thai population. DESIGN A nested case-control study within the cohort study was conducted: 219 participants with primary CCA were each matched with two non-cancer controls from the same cohort on sex, age at recruitment and the presence/absence of Opisthorchis viverrini eggs in stools. Smoking and alcohol consumption were assessed on recruitment. Polymorphisms in BER genes were analysed using a PCR with high-resolution melting analysis. The associations were assessed using conditional logistic regression. RESULTS Our results suggest that, in the Thai population, polymorphisms in XRCC1 and OGG1 genes, particularly in combination, are associated with increased susceptibility to CCA, and that their role as modifiers of the effect of smoking and alcohol consumption influences the risk of CCA. CONCLUSIONS Better ways of reducing habitual smoking and alcohol consumption, targeted towards subgroups which are genetically susceptible, are recommended. CCA is a multifactorial disease, and a comprehensive approach is needed for its effective prevention. This approach would also have the additional advantage of reducing the onset of other cancers.
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Affiliation(s)
- Nopparat Songserm
- Department of Community Health, Faculty of Public Health, Ubon Ratchathani Rajabhat University, Ubon Ratchathani, Thailand
| | - Supannee Promthet
- Department of Epidemiology, Faculty of Public Health, Khon Kaen University, Khon Kaen, Thailand
| | - Chamsai Pientong
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Tipaya Ekalaksananan
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Peechanika Chopjitt
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Surapon Wiangnon
- Department of Paediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Cancer Unit, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
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Duan Y, Hu L, Liu B, Yu B, Li J, Yan M, Yu Y, Li C, Su L, Zhu Z, Xiang M, Liu B, Yang Q. Tumor suppressor miR-24 restrains gastric cancer progression by downregulating RegIV. Mol Cancer 2014; 41:373-85. [PMID: 24886316 DOI: 10.1007/s11033-013-2871-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2012] [Accepted: 11/06/2013] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND microRNAs are small noncoding RNAs that modulate a variety of cellular processes by regulating multiple targets, which can promote or inhibit the development of malignant behaviors. Accumulating evidence suggests miR-24 plays important roles in human carcinogenesis. However, its precise biological role remains largely elusive. This study examined the role of miR-24 in gastric cancer (GC). METHODS The expression of miR-24 in GC tissues compared with matched non-tumor tissues and GC cells was detected by qRT-PCR. Synthetic short single or double stranded RNA oligonucleotides and lentiviral vectors were used to regulate miR-24 expression in GC cells to investigate its function in vitro and in vivo. RESULTS miR-24 was significantly downregulated in GC tissues compared with matched non-tumor tissues and was associated with tumor differentiation. Ectopic expression of miR-24 in SGC-7901 GC cells suppressed cell proliferation, migration and invasion in vitro as well as tumorigenicity in vivo by inducing cell cycle arrest in G0/G1 phase and promoting cell apoptosis. Furthermore, we identified RegIV as a target of miR-24 and demonstrated that miR-24 regulated RegIV expression via binding its 3' untranslated region. CONCLUSIONS miR-24 functions as a novel tumor suppressor in GC and the anti-oncogenic activity may involve its inhibition of the target gene RegIV. These findings suggest the possibility for miR-24 as a therapeutic target in GC.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Bingya Liu
- Shanghai Key Laboratory of Gastric Neoplasms, Department of Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No 197 Ruijin er Road, Shanghai 200025, People's Republic of China.
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Association between the CYP1A1 T3801C polymorphism and risk of cancer: Evidence from 268 case–control studies. Gene 2014. [DOI: 10.1016/j.gene.2013.10.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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15
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Smoking and hOGG1 Ser326Cys polymorphism contribute to lung cancer risk: evidence from a meta-analysis. Tumour Biol 2013; 35:1609-18. [PMID: 24085357 DOI: 10.1007/s13277-013-1222-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 09/16/2013] [Indexed: 10/26/2022] Open
Abstract
The human 8-oxoguanine DNA glycosylase (hOGG1) gene plays an important role in the repair of oxidatively damaged DNA base lesions and its functional single nucleotide polymorphisms (SNPs) may alter DNA repair capacity and thus contributes to cancer susceptibility. Numerous studies have investigated the association between hOGG1 Ser326Cys polymorphism and lung cancer susceptibility; however, the conclusions are still inconclusive. We searched eligible publications from MEDLINE, EMBASE, and CBM and performed a meta-analysis to assess the associations between hOGG1 Ser326Cys polymorphism and lung cancer risk. Pooled odds ratios (ORs) and 95 % confidence intervals (CIs) were calculated to estimate risk associations, and false-positive report probability (FPRP) analysis was also carried out to evaluate significant findings. A total of 31 investigations with 10,220 cases and 12,284 controls were identified. When all studies were pooled, a significantly increased overall lung cancer risk was found (Cys/Cys vs. Ser/Ser: OR = 1.24, 95 % CI = 1.05-1.47, P = 0.013; recessive model: OR = 1.22, 95 % CI = 1.05-1.41, P = 0.008, and Cys vs. Ser: OR = 1.11, 95 % CI = 1.02-1.21, P = 0.022), and further stratification analysis showed that the association was stronger in Asians, never smokers, and more-cigarette takers. These results were confirmed by FPRP analysis. Despite some limitations, this meta-analysis provides solid evidence that hOGG1 Ser326Cys polymorphism may contribute to lung cancer risk, particularly for Asian populations, never smokers, and more-cigarette takers. Nevertheless, these findings warrant further validation in single large investigations.
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Li J, Fu Y, Zhao B, Xiao Y, Chen R. Myeloperoxidase G463A polymorphism and risk of lung cancer. Tumour Biol 2013; 35:821-9. [DOI: 10.1007/s13277-013-1113-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 08/13/2013] [Indexed: 10/26/2022] Open
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Xu CH, Wang Q, Qian Q, Zhan P, Yu LK. CYP1A1 exon7 polymorphism is associated with lung cancer risk among the female population and among smokers: a meta-analysis. Tumour Biol 2013; 34:3901-11. [PMID: 23832578 DOI: 10.1007/s13277-013-0978-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 06/25/2013] [Indexed: 01/09/2023] Open
Abstract
The genetic polymorphism of the CYP1A1 exon7 (rs1048943) gene is thought to have a significant effect on lung cancer risk, but the results are inconsistent. To assess this relationship more precisely, a meta-analysis was performed. Ultimately, 45 case-control studies, involving 19,689 subjects were included. A significantly increased lung cancer risk was associated with two exon7 genotype variants (for Val/Val vs Ile/Ile: odds ratio [OR] = 1.23, 95% confidence interval [CI] = 1.10-1.43; for (Ile/Val + Val/Val) vs Ile/Ile: OR = 1.16, 95% CI = 1.08-1.24) in the overall population. In the stratified analysis by ethnicity, gender, and smoking status, a significant association was found in Asians, Caucasians, and the female population, not the male population. Additionally, a significant association was found in the smoker population, not in the nonsmoker population. This meta-analysis suggests that the exon7 polymorphisms of CYP1A1 correlate with increased lung cancer susceptibility and there is an interaction between CYP1A1 exon7 polymorphisms and smoking, but these associations vary in different genders of the case and control populations.
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Affiliation(s)
- Chun-hua Xu
- First Department of Respiratory Medicine, Nanjing Chest Hospital, Nanjing, China
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Yang JP, Wang WB, Yang XX, Yang L, Ren L, Zhou FX, Hu L, He W, Li BY, Zhu Y, Jiang HG, Zhou YF. The MPO-463G>A polymorphism and lung cancer risk: a meta-analysis based on 22 case-control studies. PLoS One 2013; 8:e65778. [PMID: 23840365 PMCID: PMC3688689 DOI: 10.1371/journal.pone.0065778] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Accepted: 04/28/2013] [Indexed: 11/19/2022] Open
Abstract
Background Myeloperoxidase (MPO) is an endogenous oxidant enzyme that produces reactive oxygen species (ROS) and may be involved in lung carcinogenesis. The MPO−463G>A polymorphism influences MPO transcription and has been associated with lung cancer susceptibility. However, the association between the MPO−463G>A polymorphism and lung cancer risk remains controversial. Method To investigate the effect of this polymorphism on lung cancer susceptibility, we performed a meta-analysis based on 22 published case–control studies including 7,520 patients with lung cancer and 8,600 controls. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to assess the strength of the association. Results Overall, there was no evidence for significant association between MPO−463G>A polymorphism and lung cancer susceptibility (for AA versus GG: OR = 0.91, 95%CI = 0.67–1.24; for GA versus GG: OR = 0.87, 95% CI = 0.78–0.98; for AA/GA versus GG: OR = 0.90, 95% CI = 0.80–1.01; for AA versus GA/GG: OR = 0.96, 95% CI = 0.72–1.28). In the stratified analyses by ethnicity, source of controls and smoking status, we also did not find any significant association between them. Conclusions In summary, this meta-analysis suggests MPO−463G>A polymorphism may not be a risk factor for developing lung cancer. However, further prospective well-designed population-based studies with larger sample size are expected to validate the results.
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Affiliation(s)
- Jun-Ping Yang
- Department of Radiotherapy Oncology, The Third Affiliated Hospital of Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Wen-Bo Wang
- Department of Chemo-Radiotherapy Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Xiao-Xi Yang
- Department of Chemo-Radiotherapy Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Lei Yang
- Department of Chemo-Radiotherapy Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Li Ren
- Department of Chemo-Radiotherapy Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Fu-Xiang Zhou
- Department of Chemo-Radiotherapy Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Liu Hu
- Department of Chemo-Radiotherapy Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Wei He
- Department of Chemo-Radiotherapy Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Bai-Yu Li
- Department of Chemo-Radiotherapy Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Yan Zhu
- Department of Chemo-Radiotherapy Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Huan-Gang Jiang
- Department of Chemo-Radiotherapy Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, People’s Republic of China
| | - Yun-Feng Zhou
- Department of Chemo-Radiotherapy Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, People’s Republic of China
- * E-mail:
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Yang X, Qiu MT, Hu JW, Wang XX, Jiang F, Yin R, Xu L. GSTT1 null genotype contributes to lung cancer risk in asian populations: a meta-analysis of 23 studies. PLoS One 2013; 8:e62181. [PMID: 23637998 PMCID: PMC3634775 DOI: 10.1371/journal.pone.0062181] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 03/18/2013] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Genetic variation in glutathione S-transferases (GSTs) may contribute to lung cancer risk. Many studies have investigated the correlation between the Glutathione S-transferase T1 (GSTT1) null genotype and lung cancer risk in Asian population but yielded inconclusive results. METHODOLOGY/PRINCIPAL FINDINGS We performed a meta-analysis of 23 studies including 4065 cases and 5390 controls. We assessed the strength of the association of GSTT1 with lung cancer risk and performed sub-group analyses by source of controls, smoking status, histological types, and sample size. A statistically significant correlation between GSTT1 null genotype and lung cancer in Asian population was observed (OR = 1.28, 95% CI = 1.10, 1.49; Pheterogeneity<0.001 and I(2) = 62.0%). Sub-group analysis revealed there was a statistically increased lung cancer risk in ever-smokers who carried the GSTT1 null genotype (OR = 1.94, 95% CI = 1.27, 2.96; P heterogeneity = 0.02 and I(2) = 58.1%). It was also indicated that GSTT1 null genotype could increase lung cancer risk among population-based studies (OR = 1.25, 95% CI = 1.04, 1.50; Pheterogeneity = 0.003 and I(2) = 56.8%). The positive association was also found in studies of sample size (≤500 participants) (OR = 1.34, 95% CI = 1.10, 1.62; Pheterogeneity<0.001 and I(2) = 65.4%). CONCLUSIONS These meta-analysis results suggest that GSTT1 null genotype is associated with a significantly increased risk of lung cancer in Asian population.
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Affiliation(s)
- Xin Yang
- The First Clinical College of Nanjing Medical University, Nanjing, China
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China
| | - Man-Tang Qiu
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China
- The Fourth Clinical College of Nanjing Medical University, Nanjing, China
| | - Jing-Wen Hu
- The First Clinical College of Nanjing Medical University, Nanjing, China
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China
| | - Xiao-xiao Wang
- Department of Bio-statistics, Georgia Health Science University, Augusta, Georgia, United States of America
| | - Feng Jiang
- The First Clinical College of Nanjing Medical University, Nanjing, China
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China
| | - Rong Yin
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China
- * E-mail: (LX); (RY)
| | - Lin Xu
- Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing, China
- * E-mail: (LX); (RY)
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The association between TP53 Arg72Pro polymorphism and lung cancer susceptibility: evidence from 30,038 subjects. Lung 2013; 191:369-77. [PMID: 23595658 DOI: 10.1007/s00408-013-9461-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 03/18/2013] [Indexed: 01/23/2023]
Abstract
BACKGROUND The TP53 codon 72 polymorphism has been associated with the individual susceptibility to lung cancer. However, the association remains uncertain and varies with ethnicity, smoking status, cancer histology, and stage. METHODS We performed a meta-analysis to evaluate the relationship between TP53 Arg72Pro polymorphism and lung cancer susceptibility basing on 15,647 lung cancer patients and 14,391 controls from 36 published literatures. We also performed stratified analysis in populations of different ethnicities, smoking statuses, lung cancer stages, and histological types. RESULTS The analysis showed a significantly increased lung cancer susceptibility among Pro allele carriers (P < 0.001, odds ratio (OR) = 1.14, 95% confidence interval (CI) = 1.1-1.19), especially for smokers (P < 0.001, OR = 1.29, 95% CI = 1.12-1.47). Stratified analysis indicated that Pro72 elevates lung cancer susceptibility in Asians, while it has no effect on lung cancer risk of Caucasians. Moreover, Pro carriers present an increased risk of developing squamous cell carcinoma and adenocarcinoma, instead of large cell carcinoma and small cell carcinoma. Interestingly, patients with the Pro allele seemed to be diagnosed with lung cancer at the early stages (stage I-II, P = 0.008, OR = 1.2, 95% CI = 1.05-1.37). CONCLUSIONS Our results suggest that the Pro allele acts as a risk factor for development of lung cancer, especially for smokers and Asians.
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Cheng Z, Wang W, Song YN, Kang Y, Xia J. hOGG1, p53 genes, and smoking interactions are associated with the development of lung cancer. Asian Pac J Cancer Prev 2013; 13:1803-8. [PMID: 22901126 DOI: 10.7314/apjcp.2012.13.5.1803] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
This study aimed to investigate the effects of Ser/Cys polymorphism in hOGG1 gene, Arg/Pro polymorphism in p53 gene, smoking and their interactions on the development of lung cancer. Ser/Cys polymorphism in hOGG1 and Arg/Pro polymorphism in p53 among 124 patients with lung cancer and 128 normal people were detected using PCR-RFLP. At the same time, smoking status was investigated between the two groups. Logistic regression was used to estimate the effects of Ser/Cys polymorphism and Arg/Pro polymorphisms, smoking and their interactions on the development of lung cancer. ORs (95% CI) of smoking, hOGG1 Cys/Cys and p53 Pro/ Pro genotypes were 2.34 (1.41-3.88), 2.12 (1.03-4.39), and 2.12 (1.15-3.94), respectively. The interaction model of smoking and Cys/Cys was super-multiplicative or multiplicative, and the OR (95% CI) for their interaction item was 1.67 (0.36 -7.78). The interaction model of smoking and Pro/Pro was super-multiplicative with an OR (95%CI) of their interaction item of 5.03 (1.26-20.1). The interaction model of Pro/Pro and Cys/Cys was multiplicative and the OR (95%CI) of their interaction item was 0.99 (0.19-5.28). Smoking, hOGG1 Cys/Cys, p53 Pro/Pro and their interactions may be the important factors leading to the development of lung cancer.
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Affiliation(s)
- Zhe Cheng
- Department of Respiratory Medicine, the First Affiliated Hospital of Zhengzhou University, Institute of Clinical Medical Research of Henan Universities, Zhengzhou, China.
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Karahalil B, Engin AB, Coşkun E. Could 8-oxoguanine DNA glycosylase 1 Ser326Cys polymorphism be a biomarker of susceptibility in cancer? Toxicol Ind Health 2012; 30:814-25. [PMID: 23081862 DOI: 10.1177/0748233712463777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Biomarkers are key molecular or cellular events that give an indication whether there is a threat for disease, whether a disease already exists, or how such disease may develop in an individual case. The discovery of polymorphisms in genes that function in the metabolism of chemicals and in DNA repair has demonstrated the importance of understanding the phenomenon of genetic susceptibility in a population. Polymorphisms in DNA repair genes as an important component of the individual susceptibility to the development of cancer and various hereditary diseases have been commonly studied, since these genes have critical roles in maintaining genome integrity. Furthermore, the evaluation of cancer risk depends on the level of exposure to carcinogenic factors as well as on the genetic codes of the individual. This approach is supported by studies that present positive association between these polymorphic genes and cancers. Although 8-oxoguanine DNA glycosylase 1 (OGG1) is one of the promising biomarker candidates of cancer susceptibility, there are also some controversial results. Epidemiological studies show that the OGG1 might be a biomarker of susceptibility for various cancers; however, the small sample size and difference in the eligibility criteria for inclusion of subjects and sources might limit the studies to demonstrate the association between the OGG1 Ser326Cys polymorphism and the risk of cancer. Thus, meta-analyses may provide more valuable and reliable data to demonstrate the potential of OGG1 Ser326Cys DNA repair enzyme polymorphisms that could be the biomarkers of susceptibility of cancer. Our aim in this review is to compile published studies, including some controversial results on the association between the OGG1 Ser326Cys polymorphism and the risk of cancer.
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Affiliation(s)
- Bensu Karahalil
- Toxicology Department, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Ayşe Başak Engin
- Toxicology Department, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Erdem Coşkun
- Toxicology Department, Faculty of Pharmacy, Gazi University, Ankara, Turkey
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Asbestos Exposure among Mitering Workers. Saf Health Work 2012; 3:235-40. [PMID: 23019536 PMCID: PMC3443699 DOI: 10.5491/shaw.2012.3.3.235] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Revised: 03/31/2012] [Accepted: 04/20/2012] [Indexed: 11/20/2022] Open
Abstract
The objectives are to compare the airborne asbestos concentrations resulted from mitering of abestos cement roof sheets by a high-speed motor and a hand saw, and to monitor whether other workers near the test sites are vulnerable to the fibers exceeding the occupational exposure limit. Four test cases were carried out and altogether 7 personal and 4 area air samples were collected. The NIOSH method 7400 was employed for the air samplings and analysis. Using the phase contrast microscopy, fiber counting was conducted under Rule A. The study showed that the fiber concentration medians for personal air samples gathered from the two tools were 4.11 fibers/cc (ranged: 1.33-12.41 fibers/cc) and 0.13 fibers/cc (ranged: 0.01-5.00 fibers/cc) respectively. The median for the area samples was 0.59 fibers/cc (ranged: 0.14-3.32 fibers/cc). Comparing each study case, the concentration level caused by the high-speed motor saw was more than twice that of the hand saw. According to the area samples, the workers nearby the test site are at risk from high exposure to asbestos.
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Ji YN, Wang Q, Suo LJ. CYP1A1 Ile462Val polymorphism contributes to lung cancer susceptibility among lung squamous carcinoma and smokers: a meta-analysis. PLoS One 2012; 7:e43397. [PMID: 22952673 PMCID: PMC3429471 DOI: 10.1371/journal.pone.0043397] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Accepted: 07/20/2012] [Indexed: 12/21/2022] Open
Abstract
Many studies have examined the association between the CYP1A1 Ile462Val gene polymorphisms and lung cancer risk in various populations, but their results have been inconsistent. To assess this relationship more precisely, a meta-analysis was performed. Ultimately, 43 case-control studies, comprising 19,228 subjects were included. A significantly elevated lung cancer risk was associated with 2 Ile462Val genotype variants (for Val/Val vs Ile/Ile: OR = 1.22, 95% CI = 1.08-1.40; for (Ile/Val +Val/Val) vs Ile/Ile: OR = 1.15, 95% CI = 1.07-1.23) in overall population. In the stratified analysis, a significant association was found in Asians, Caucasians and lung SCC, not lung AC and lung SCLC. Additionally, a significant association was found in smoker population and not found in non-smoker populations. This meta-analysis suggests that the Ile462Val polymorphisms of CYP1A1 correlate with increased lung cancer susceptibility in Asian and Caucasian populations and there is an interaction with smoking status, but these associations vary in different histological types of lung caner.
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Affiliation(s)
- Ya-Nan Ji
- Jiangsu Province Hospital of Traditional Chinese Medicine, Nanjing, China.
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Ji YN, Wang Q, Lin XQ, Suo LJ. CYP1A1 MspI polymorphisms and lung cancer risk: An updated meta-analysis involving 20,209 subjects. Cytokine 2012; 59:324-34. [DOI: 10.1016/j.cyto.2012.04.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 03/04/2012] [Accepted: 04/18/2012] [Indexed: 10/28/2022]
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The association between OGG1 Ser326Cys polymorphism and lung cancer susceptibility: a meta-analysis of 27 studies. PLoS One 2012; 7:e35970. [PMID: 22540013 PMCID: PMC3335067 DOI: 10.1371/journal.pone.0035970] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Accepted: 03/24/2012] [Indexed: 02/06/2023] Open
Abstract
Background Numerous studies have investigated association of OGG1 Ser326Cys polymorphism with lung cancer susceptibility; however, the findings are inconsistent. Therefore, we performed a meta-analysis based on 27 publications encompass 9663 cases and 11348 controls to comprehensively evaluate such associations. Methods We searched publications from MEDLINE and EMBASE which were assessing the associations between OGG1 Ser326Cys polymorphism and lung cancer risk. We calculated pooled odds ratio (OR) and 95% confidence interval (CI) by using either fixed-effects or random-effects model. We used genotype based mRNA expression data from HapMap for SNP rs1052133 in normal cell lines among 270 subjects with four different ethnicities. Results The results showed that individuals carrying the Cys/Cys genotype did not have significantly increased risk for lung cancer (OR = 1.15, 95% CI = 0.98–1.36) when compared with the Ser/Ser genotype; similarly, no significant association was found in recessive, dominant or heterozygous co-dominant model (Ser/Cys vs. Cys/Cys). However, markedly increased risks were found in relatively large sample size (Ser/Ser vs. Cys/Cys: OR = 1.29, 95% CI = 1.13–1.48, and recessive model: OR = 1.19, 95% CI = 1.07–1.32). As to histological types, we found the Cys/Cys was associated with adenocarcinoma risk (Ser/Ser vs. Cys/Cys: OR = 1.32, 95% CI = 1.12–1.56; Ser/Cys vs. Cys/Cys: OR = 1.19, 95% CI = 1.04–1.37, and recessive model OR = 1.23, 95% CI = 1.08–1.40). No significant difference of OGG1 mRNA expression was found among genotypes between different ethnicities. Conclusions Despite some limitations, this meta-analysis established solid statistical evidence for an association between the OGG1 Cys/Cys genotype and lung cancer risk, particularly for studies with large sample size and adenocarcinoma, but this association warrants additional validation in larger and well designed studies.
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Yuzhalin AE, Kutikhin AG. Common genetic variants in the myeloperoxidase and paraoxonase genes and the related cancer risk: a review. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS 2012; 30:287-322. [PMID: 23167629 DOI: 10.1080/10590501.2012.731957] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Modern approaches in health care are moving toward the model of "personalized medicine." Today, current research in molecular biology and medicine is focused on developing genomic markers with predictive, therapeutic, and prognostic significance. One of the most widespread and significant genomic markers is the single nucleotide polymorphism (SNP), which represents a variation in DNA sequence when a single nucleotide differs between members of a biological species or paired chromosomes in an individual. Antioxidant defense enzymes break down dangerous reactive compounds, called reactive oxygen species, and prevent DNA strand from carcinogen-specific mutations. It is well known that inherited variations in genes that encode antioxidant defense enzymes may modulate individual susceptibility to cancer. In our previous study we have determined the predictive significance of several SNPs of superoxide dismutase (SOD) and glutathione peroxidase gene families in the context of cancer risk. The present review includes a summary and discussion of the current findings evaluating the role of SNPs of the myeloperoxidase (MPO) and paraoxanase (PON) genes in cancer occurrence and development. We suggest that rs2333227 (MPO_ -463G/A) and rs854560 polymorphisms have a great predictive significance; they could probably be utilized as cancer predictors in the future. Also, we recommend further in-depth research for rs11079344 (MPO), rs8178406 (MPO), rs2243828 (MPO), rs662 (PON1), rs705379 (PON1), and PON1_304A/G polymorphisms. These SNPs may become significant cancer-associated biomarkers.
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Affiliation(s)
- Arseniy E Yuzhalin
- Institute for Complex Issues of Cardiovascular Diseases, Siberian Branch of the Russian Academy of Medical Sciences, Kemerovo, Russian Federation.
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Kurose K, Sugiyama E, Saito Y. Population differences in major functional polymorphisms of pharmacokinetics/pharmacodynamics-related genes in Eastern Asians and Europeans: implications in the clinical trials for novel drug development. Drug Metab Pharmacokinet 2011; 27:9-54. [PMID: 22123129 DOI: 10.2133/dmpk.dmpk-11-rv-111] [Citation(s) in RCA: 181] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Drug lag, recently discussed extensively in Japan, can be divided into two phases: clinical development time and application review time. The former factor is still an important problem that might be improved by promoting multi-regional clinical trials and considering the results from other similar populations with Japanese, such as Koreans and Chinese. In this review, we compare the allelic or genotype frequencies of 30 relatively common functional alleles mainly between Eastern Asians and Europeans as well as among 3 major populations in Eastern Asian countries, Japan, Korea, and China, in 12 pharmacokinetics (PK)/pharmacodynamics (PD)-related genes; CYP2C9 (*2 and *3), CYP2C19 (*2, *3 and *17), 13 CYP2D6 haplotypes including *4, *5 and *10, CYP3A5 (*3), UGT1A1 (*28 and *6), NAT2 (*5, *6 and *7), GSTM1 and GSTT1 null genotypes, SLCO1B1 521T>C, ABCG2 421C>A, and HLA-A*31:01 and HLA-B*58:01. In this review, differences in allele frequencies (AFs) or genotype frequencies (GFs) less than 0.1 (in the cases of highest AF (GF) ≥0.1) or less than 0.05 (in the cases of lowest AF (GF) <0.1) were regarded as similar. Between Eastern Asians and Europeans, AFs (or GFs) are regarded as being different for many alleles such as CYP2C9 (*2), CYP2C19 (*2, *3 and *17), CYP2D6 (*4 and *10), CYP3A5 (*3), UGT1A1 (*28 and *6), NAT2 (*5*7), GSTT1 null and ABCG2 421C>A. Among the 3 Eastern Asian populations, however, only AFs of CYP2C19*3, CYP2D6*10, HLA-A*31:01 and HLA-B*58:01 are regarded as dissimilar. For CYP2C19*3, the total functional impact on CYP2C19 could be small if the frequencies of the two null alleles CYP2C19*2 and *3 are combined. Regarding CYP2D6*10, frequency difference over 0.1 is observed only between Japanese and Chinese (0.147). Although environmental factors should be considered for PK/PD differences, we could propose that among Japan, Korea, and China, genetic differences are very small for the analyzed common PK-related gene polymorphisms. On the other hand, AFs of the two HLA alleles important for cutaneous adverse drug reactions are diverse even among Eastern Asians and thus should be taken into account.
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Affiliation(s)
- Kouichi Kurose
- Division of Medicinal Safety Science, National Institute of Health Sciences, Tokyo, Japan
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Wei B, Zhou Y, Xu Z, Xi B, Cheng H, Ruan J, Zhu M, Hu Q, Wang Q, Wang Z, Yan Z, Jin K, Zhou D, Xuan F, Huang X, Shao J, Lu P. The effect of hOGG1 Ser326Cys polymorphism on cancer risk: evidence from a meta-analysis. PLoS One 2011; 6:e27545. [PMID: 22114677 PMCID: PMC3219678 DOI: 10.1371/journal.pone.0027545] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 10/18/2011] [Indexed: 01/15/2023] Open
Abstract
Background Human oxoguanine glycosylase 1 (hOGG1) in base excision repair (BER) pathway plays a vital role in DNA repair. Numerous epidemiological studies have evaluated the association between hOGG1 Ser326Cys polymorphism and the risk of cancer. However, the results of these studies on the association remain conflicting. To derive a more precise estimation of the association, we conducted a meta-analysis. Methodology/Principal Findings A comprehensive search was conducted to identify the eligible studies of hOGG1 Ser326Cys polymorphism and cancer risk. We used odds ratios (ORs) with 95% confidence intervals (CIs) to assess the strength of the association. We found that the hOGG1 Ser326Cys polymorphism was significantly associated with overall cancer risk (Cys/Cys vs. Ser/Ser: OR = 1.19, 95%CI = 1.09–1.30, P<0.001; Cys/Cys vs. Cys/Ser+Ser/Ser: OR = 1.16, 95%CI = 1.08–1.26, P<0.001). Moreover, in subgroup analyses by cancer types, the stronger significant association between hOGG1 Ser326Cys polymorphism and lung cancer risk was found (Cys/Cys vs. Ser/Ser: OR = 1.29, 95%CI = 1.16–1.44, P<0.001; Cys/Cys vs. Cys/Ser+Ser/Ser: OR = 1.22, 95%CI = 1.12–1.33, P<0.001). The significant effects of hOGG1 Ser326Cys polymorphism on colorectal, breast, bladder, prostate, esophageal, and gastric cancer were not detected. In addition, in subgroup analyses by ethnicities, we found that the hOGG1 Ser326Cys polymorphism was associated with overall cancer risk in Asians (Cys/Cys vs. Ser/Ser: OR = 1.21, 95%CI = 1.10–1.33, P<0.001). Conclusions This meta-analysis showed that hOGG1 326Cys allele might be a low-penetrant risk factor for lung cancer.
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Affiliation(s)
- Bingbing Wei
- Department of Urology, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
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Zhan P, Wang Q, Qian Q, Wei SZ, Yu LK. CYP1A1 MspI and exon7 gene polymorphisms and lung cancer risk: an updated meta-analysis and review. J Exp Clin Cancer Res 2011; 30:99. [PMID: 22014025 PMCID: PMC3212928 DOI: 10.1186/1756-9966-30-99] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Accepted: 10/20/2011] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Many studies have examined the association between the CYP1A1 MspI and exon 7 gene polymorphisms and lung cancer risk in various populations, but their results have been inconsistent. METHODS To assess this relationship more precisely, a meta-analysis and review were performed. The PubMed, Embase, Web of Science, and CNKI database was searched for case-control studies published up to June 2010. Data were extracted and pooled odds ratios (OR) with 95% confidence intervals (CI) were calculated. RESULTS Ultimately, 64 studies, comprising 18,397 subjects from 49 case-control studies of the MspI genotype and 18,518 patients from 40 case-control studies of the exon 7 genotype, were included. A significantly elevated lung cancer risk was associated with 2 MspI genotype variants (for type C vs. Type A: OR = 1.26, 95% CI = 1.12-1.42; for types B and C combined vs. Type A: OR = 1.20, 95% CI = 1.13-1.28) in overall population. In the stratified analysis, a significant association was found in Asians, Caucasians, lung SCC, lung AC and Male population, not in mixed population, lung SCLC and female population. However, inconsistent results were observed for CYP1A1 exon7 in our meta-analysis, two variants of the exon 7 polymorphism were associated with a significantly higher risk for lung cancer (for Val/Val vs. Ile/Ile: OR = 1.24, 95% CI = 1.09-1.42; for (Ile/Val +Val/Val) vs. Ile/Ile: OR = 1.15, 95% CI = 1.07-1.24) in overall population. In the stratified analysis, a significant assocation was found in Asians, Caucasians, lung SCC and Female population, not in mixed population, lung AD, lung SCLC and Male population. Additionally, a significant association was found in smoker population and not found in non-smoker populations for CYP1A1 MspI and exon7 gene. CONCLUSIONS This meta-analysis suggests that the MspI and exon 7 polymorphisms of CYP1A1 correlate with increased lung cancer susceptibility and there is an interaction between two genotypes of CYP1A1 polymorphism and smoking, but these associations vary in different ethnic populations, histological types of lung cancer and gender of case and control population.
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Affiliation(s)
- Ping Zhan
- First Department of Respiratory Medicine, Nanjing Chest Hospital, 215 Guangzhou Road, Nanjing 210029, China
| | - Qin Wang
- Department of Respiratory Medicine, No. 81 Hospital of PLA, Nanjing, China
| | - Qian Qian
- First Department of Respiratory Medicine, Nanjing Chest Hospital, 215 Guangzhou Road, Nanjing 210029, China
| | - Shu-Zhen Wei
- Department of Respiratory Medicine, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Li-Ke Yu
- First Department of Respiratory Medicine, Nanjing Chest Hospital, 215 Guangzhou Road, Nanjing 210029, China
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Chen Z, Li Z, Niu X, Ye X, Yu Y, Lu S, Chen Z. The effect of CYP1A1 polymorphisms on the risk of lung cancer: a global meta-analysis based on 71 case-control studies. Mutagenesis 2011; 26:437-46. [DOI: 10.1093/mutage/ger002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Chu H, Wang M, Wang M, Gu D, Wu D, Zhang Z, Tang J, Zhang Z. The MPO -463G>A polymorphism and cancer risk: a meta-analysis based on 43 case-control studies. Mutagenesis 2010; 25:389-95. [PMID: 20418356 DOI: 10.1093/mutage/geq018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Myeloperoxidase (MPO) is an endogenous oxidant enzyme that generates reactive oxygen species and plays an important role in the aetiology of cancer. The MPO -463G>A polymorphism influences MPO transcription and has been implicated in cancer risk. However, results from published studies on the association between the MPO -463G>A polymorphism and risk of cancer are conflicting. To derive a more precise estimation of association between the MPO -463G>A polymorphism and risk of cancer, we performed a meta-analysis based on 43 case-control studies, including a total of 14 171 cancer cases and 17 319 controls. We used odds ratios (ORs) with 95% confidence intervals (CIs) to assess the strength of the association. Overall, individuals with the -463A allele had a 0.93-fold lower cancer risk in a dominant model (OR = 0.93, 95% CI = 0.87-1.00). In the stratified analyses, we observed a similar association in European populations (heterozygote comparison: OR = 0.90, 95% CI = 0.82-0.99) and hospital-based studies (dominant model: OR = 0.88, 95% CI = 0.79-0.99). When stratified by cancer type, however, no significant association was found. The results suggested that the MPO -463A allele does not contribute to the development of cancer. Additional well-designed large studies are required to validate these findings in different populations.
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Affiliation(s)
- Haiyan Chu
- Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
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Sfar S, Saad H, Mosbah F, Chouchane L. Synergistic effect and VEGF/HSP70-hom haplotype analysis: relationship to prostate cancer risk and clinical outcome. Hum Immunol 2010; 71:377-82. [PMID: 20096741 DOI: 10.1016/j.humimm.2010.01.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2009] [Revised: 01/10/2010] [Accepted: 01/15/2010] [Indexed: 11/17/2022]
Abstract
Prostate cancer (PCa) is a complex disorder resulting from the combined effects of multiple environmental and genetic factors. Our previous single-locus analysis showed that VEGF and HSP70-hom polymorphisms were significantly associated with PCa susceptibility and prognosis. Both genes encoding these proteins were located on chromosome 6p21, and combining the neighboring single nucleotide polymorphisms (SNPs) into haplotypes may increase the association with the disease. Three tagging polymorphisms, the HSP70-hom 2437 T/C, the VEGF-1154 G/A, and the VEGF-634 G/C SNPs were genotyped in 101 cases and 80 controls. For the combined analysis of VEGF and HSP70-hom, we found a positive gradient in the odds ratios (ORs) related to the number of high-risk genotypes with a 3.53-fold increase of prostate carcinoma risk (OR = 3.53; p = 0.015). Furthermore, the TAG and CAG haplotypes at positions HSP70-hom, VEGF -1154 and VEGF -634 exhibited a two-fold (OR = 0.46; p = 0.014) and a seven-fold (OR = 0.14; p = 0.00005) reduction in PCa risk, respectively. Regarding PCa prognosis, the TAG haplotype had a negative association with the aggressive phenotype as defined by the histopathological grade (OR = 0.28; p = 0.006). Our findings confirm the role of at-risk haplotype across the HSP70-hom/VEGF gene cluster in determining susceptibility to PCa.
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Affiliation(s)
- Sana Sfar
- Department of Molecular Immuno-Oncology, Faculty of Medicine, Monastir, Tunisia.
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