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Bai X, Wang Y, Luo X, Bao X, Weng X, Chen Y, Zhang S, Lv Y, Dai X, Zeng M, Yang D, Hu S, Li J, Ji Y, Jia H, Yu B. Cigarette tar accelerates atherosclerosis progression via RIPK3-dependent necroptosis mediated by endoplasmic reticulum stress in vascular smooth muscle cells. Cell Commun Signal 2024; 22:41. [PMID: 38229167 PMCID: PMC10790416 DOI: 10.1186/s12964-024-01480-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/05/2024] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND Tar is the main toxic of cigarettes, and its effect on atherosclerosis progression and the underlying mechanisms remain largely unknown. Vascular smooth muscle cells (VSMCs) play a key role in atherogenesis and plaque vulnerability. The present study sought to investigate the mechanism of atherosclerosis progression through tar-induced VSMC necroptosis, a recently described form of necrosis. METHODS The effect of tar on atherosclerosis progression and VSMC necroptosis was examined in ApoE-/- mice and cultured VSMCs. The role of necroptosis in tar-induced plaque development was evaluated in RIPK3-deletion mice (ApoE-/-RIPK3-/-). The key proteins of necroptosis in carotid plaques of smokers and non-smokers were also examined. Quantitative proteomics of mice aortas was conducted to further investigate the underlying mechanism. Pharmacological approaches were then applied to modulate the expression of targets to verify the regulatory process of tar-induced necroptosis. RESULTS Tar administration led to increased atherosclerotic plaque area and reduced collagen and VSMCs in ApoE-/- mice. The expression of RIPK1、RIPK3、and MLKL in VSMCs of plaques were all increased in tar-exposed mice and smokers. RIPK3 deletion protected against VSMC loss and plaque progression stimulated by tar. In mechanistic studies, quantitative proteomics analysis of ApoE-/- mice aortas suggested that tar triggered endoplasmic reticulum (ER) stress. PERK-eIF2α-CHOP axis was activated in tar-treated VSMCs and atherosclerotic plaque. Inhibition of ER stress using 4PBA significantly reduced plaque progression and VSMC necroptosis. Further study revealed that ER stress resulted in calcium (Ca2+) release into mitochondria and cytoplasm. Elevated Ca2+ levels lead to mitochondrial dysfunction and excessive reactive oxygen species (ROS) production, which consequently promote RIPK3-dependent necroptosis. In addition, Ca2+/calmodulin-dependent protein kinase II (CaMKII) activated by cytosolic Ca2+ overload binds to RIPK3, accounting for necroptosis. CONCLUSION The findings revealed that cigarette tar promoted atherosclerosis progression by inducing RIPK3-dependent VSMC necroptosis and identified novel avenues of ER stress and Ca2+ overload.
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Affiliation(s)
- Xiaoxuan Bai
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Ying Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Xing Luo
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Xiaoyi Bao
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Xiuzhu Weng
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Yuwu Chen
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Shan Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Ying Lv
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Xinyu Dai
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Ming Zeng
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Dan Yang
- Department of Forensic Medicine, Harbin Medical University, Harbin, 150081, China
| | - Sining Hu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Ji Li
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
| | - Yong Ji
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Key Laboratory of Cardiovascular Medicine Research and NHC Key Laboratory of Cell Transplantation, Harbin, 150001, China
| | - Haibo Jia
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China.
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China.
| | - Bo Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin Medical University, Harbin, 150001, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, 150001, China
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Wang X, Zeng M, Ju X, Lin A, Zhou C, Shen J, Liu Z, Tang B, Cheng Q, Wang Y, Zhang J, Luo P. Correlation between second and first primary cancer: systematic review and meta-analysis of 9 million cancer patients. Br J Surg 2024; 111:znad377. [PMID: 38055899 DOI: 10.1093/bjs/znad377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/30/2023] [Accepted: 10/21/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Many survivors of a first primary cancer (FPCs) are at risk of developing a second primary cancer (SPC), with effects on patient prognosis. Primary cancers have different frequencies of specific SPC development and the development of SPCs may be closely related to the FPC. The aim of this study was to explore possible correlations between SPCs and FPCs. METHODS Relevant literature on SPCs was retrospectively searched and screened from four databases, namely, PubMed, EMBASE, Web of Science, and PMC. Data on the number of patients with SPC in 28 different organ sites were also collected from The Surveillance, Epidemiology, and End Results (SEER) 8 Registry and NHANES database. RESULTS A total of 9 617 643 patients with an FPC and 677 430 patients with an SPC were included in the meta-analysis. Patients with a first primary gynaecological cancer and thyroid cancer frequently developed a second primary breast cancer and colorectal cancer. Moreover, those with a first primary head and neck cancer, anal cancer and oesophageal cancer developed a second primary lung cancer more frequently. A second primary lung cancer and prostate cancer was also common among patients with first primary bladder cancer and penile cancer. Patients with second primary bladder cancer accounted for 56% of first primary ureteral cancer patients with SPCs. CONCLUSIONS This study recommends close clinical follow-up, monitoring and appropriate interventions in patients with relevant FPCs for better screening and early diagnosis of SPCs.
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Affiliation(s)
- Xinyu Wang
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Meiyuan Zeng
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xueming Ju
- Department of Utrsound, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Anqi Lin
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Chaozheng Zhou
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Junyi Shen
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Zaoqu Liu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bufu Tang
- Department of Radiation Oncology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, P. R. China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, China
| | - Youyu Wang
- Department of Utrsound, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Jian Zhang
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Peng Luo
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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Bauer AE, Avery CL, Shi M, Weinberg CR, Olshan AF, Harmon QE, Luo J, Yang J, Manuck T, Wu MC, Klungsøyr K, Trogstad L, Magnus P, Engel SM. Do Genetic Variants Modify the Effect of Smoking on Risk of Preeclampsia in Pregnancy? Am J Perinatol 2024; 41:44-52. [PMID: 34839469 PMCID: PMC10127527 DOI: 10.1055/s-0041-1740072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Maternal smoking is associated with as much as a 50% reduced risk of preeclampsia, despite increasing risk of other poor pregnancy outcomes that often co-occur with preeclampsia, such as preterm birth and fetal growth restriction. Researchers have long sought to understand whether this perplexing association is biologically based, or a result of noncausal mechanisms. We examined whether smoking-response genes modify the smoking-preeclampsia association to investigate potential biological explanations. STUDY DESIGN We conducted a nested case-control study within the Norwegian Mother, Father and Child Birth Cohort (1999-2008) of 2,596 mother-child dyads. We used family-based log-linear Poisson regression to examine modification of the maternal smoking-preeclampsia relationship by maternal and fetal single nucleotide polymorphisms involved in cellular processes related to components of cigarette smoke (n = 1,915 with minor allele frequency ≥10%). We further investigated the influence of smoking cessation during pregnancy. RESULTS Three polymorphisms showed overall (p < 0.001) multiplicative interaction between smoking and maternal genotype. For rs3765692 (TP73) and rs10770343 (PIK3C2G), protection associated with smoking was reduced with two maternal copies of the risk allele and was stronger in continuers than quitters (interaction p = 0.02 for both loci, based on testing 3-level smoking by 3-level genotype). For rs2278361 (APAF1) the inverse smoking-preeclampsia association was eliminated by the presence of a single risk allele, and again the trend was stronger in continuers than in quitters (interaction p = 0.01). CONCLUSION Evidence for gene-smoking interaction was limited, but differences by smoking cessation warrant further investigation. We demonstrate the potential utility of expanded dyad methods and gene-environment interaction analyses for outcomes with complex relationships between maternal and fetal genotypes and exposures. KEY POINTS · Maternal and fetal genotype may differentially influence preeclampsia.. · Smoking-related genes did not strongly modify smoking-preeclampsia association.. · Smoking cessation reduced strength of gene by smoking interactions..
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Affiliation(s)
- Anna E. Bauer
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, CB# 7435, Chapel Hill, NC, 27599-7435, United States
| | - Christy L. Avery
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, CB# 7435, Chapel Hill, NC, 27599-7435, United States
- Carolina Population Center, University of North Carolina at Chapel Hill, 123 West Franklin St, Chapel Hill, NC, 27516, United States
| | - Min Shi
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, P.O. Box 12233, Mail Drop A3-03, Durham, NC, 27709, United States
| | - Clarice R. Weinberg
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, P.O. Box 12233, Mail Drop A3-03, Durham, NC, 27709, United States
| | - Andrew F. Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, CB# 7435, Chapel Hill, NC, 27599-7435, United States
| | - Quaker E. Harmon
- Epidemiology Branch, National Institute of Environmental Health Sciences, P.O. Box 12233, Mail Drop A3-05, Durham, NC, 27709, United States
| | - Jingchun Luo
- Mammalian Genotyping Core, University of North Carolina at Chapel Hill, Carolina Crossing C, 2234 Nelson Highway, Chapel Hill, NC, 27517, United States
| | - Jenny Yang
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, CB# 7420, Chapel Hill, NC, 27599-7420, United States
| | - Tracy Manuck
- Department of Obstetrics and Gynecology, School of Medicine, University of North Carolina at Chapel Hill, 3009 Old Clinic Building, CB# 7570, Chapel Hill, NC, 27599-7570, United States
| | - Michael C. Wu
- Biostatistics and Biomathematics Program, Public Health Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, M2-8500, Seattle, WA 98109, United States
| | - Kari Klungsøyr
- Division for Mental and Physical Health, Norwegian Institute of Public Health, P.O. Box 222 Skøyen, 0213 Oslo, Norway
- Department of Global Public Health and Primary Care, University of Bergen, P.O. Box 7804, N-5020, Bergen, Norway
| | - Lill Trogstad
- Division for Mental and Physical Health, Norwegian Institute of Public Health, P.O. Box 222 Skøyen, 0213 Oslo, Norway
| | - Per Magnus
- Centre for Fertility and Health, Norwegian Institute of Public Health, P.O. Box 222 Skøyen, N-0213 Oslo, Norway
| | - Stephanie M. Engel
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, CB# 7435, Chapel Hill, NC, 27599-7435, United States
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Baghaei A, Behjati M, Karimian A. Association Analysis of GSTP1-rs1695 Polymorphism with the Risk of Oral Cancer: A Literature Review, an Updated Meta- Analysis, and a Structural Assessment. Asian Pac J Cancer Prev 2022; 23:3859-3868. [PMID: 36444599 PMCID: PMC9930972 DOI: 10.31557/apjcp.2022.23.11.3859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND This study aimed to investigate the association of rs1695 polymorphism in glutathione S-transferase P1 (GSTP1) with risk of oral cancer in a meta-analysis which was followed by a bioinformatics approach. MATERIALS AND METHODS Related articles were collected through a systematic search in PubMed, Google Scholar, and EMBASE databases up to June 2022 and then screened. Finally, seven studies, including 1249 cases of oral cancer and 1861 healthy individuals, were included in our meta-analysis. Seven different genetic models including G vs. A, GG+GA vs. AA, GG vs. GA+AA, GA vs. GG+AA, GG vs. GA, GG vs. AA, and GA vs. AA were used for the calculation of odds ratio and 95% confidence interval in order to assess the association between GSTP1-rs1695 polymorphism and oral cancer risk. Also, the ethnicity-based stratified analyses were performed using the seven mentioned models. Some bioinformatics software was used to investigate the effect of rs1695 polymorphism on the primary, secondary, and three-dimensional structure of GSTP1. RESULTS Our results showed that rs1695 polymorphism was not associated with the risk of oral cancer in any seven genetic models (G vs. A: OR= 0.9331, 95%CI= 0.6339-1.3737, P= 0.726; GG vs. GA+AA: OR= 0.9112 , 95%CI= 0.6865-1.2093, P= 0.520; GG+GA vs. AA: OR= 0.9006, 95%CI= 0.5522-1.4690, P= 0.675; GA vs. GG+AA: OR= 0.8732, 95%CI= 0.5763-1.3230, P= 0.522; GG vs. AA: OR= 0.9516, 95%CI= 0.5503-1.6456, P= 0.859; GG vs. GA: OR= 1.0645, 95%CI= 0.7891-1.4359, P= 0.683; GA vs. AA: OR= 0.8825, 95%CI= 0.5499-1.4162, P= 0.604). Also, we did not observe any significant associations in ethnicity-based stratified analyses. But bioinformatics studies have shown that this polymorphism can alter the physicochemical properties and secondary structure of the protein. CONCLUSIONS Based on results, the rs1695 polymorphism could not be considered a risk factor for oral cancer.
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Affiliation(s)
- Ahmadali Baghaei
- Faculty of Medicine, Islamic Azad University of Mashhad, Mashhad, Iran
| | - Mohaddeseh Behjati
- Cellular, Molecular and Genetics Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Karimian
- Department of Otolaryngology, School of Medicine, Kashan University of Medical Science, Kashan, Iran
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Novel Systemic Treatment Modalities Including Immunotherapy and Molecular Targeted Therapy for Recurrent and Metastatic Head and Neck Squamous Cell Carcinoma. Int J Mol Sci 2022; 23:ijms23147889. [PMID: 35887235 PMCID: PMC9320653 DOI: 10.3390/ijms23147889] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/08/2022] [Accepted: 07/14/2022] [Indexed: 12/15/2022] Open
Abstract
Head and neck squamous cell carcinomas (HNSCCs) are the sixth most common cancers worldwide. More than half of patients with HNSCC eventually experience disease recurrence and/or metastasis, which can threaten their long-term survival. HNSCCs located in the oral cavity and larynx are usually associated with tobacco and/or alcohol use, whereas human papillomavirus (HPV) infection, particularly HPV16 infection, is increasingly recognized as a cause of oropharyngeal HNSCC. Despite clinical, histologic, and molecular differences between HPV-positive and HPV-negative HNSCCs, current treatment approaches are the same. For recurrent disease, these strategies include chemotherapy, immunotherapy with PD-1-inhibitors, or a monoclonal antibody, cetuximab, that targets epidermal growth factor; these therapies can be administered either as single agents or in combination. However, these treatment strategies carry a high risk of toxic side effects; therefore, more effective and less toxic treatments are needed. The landscape of HNSCC therapy is changing significantly; numerous clinical trials are underway to test novel therapeutic options like adaptive cellular therapy, antibody-drug conjugates, new targeted therapy agents, novel immunotherapy combinations, and therapeutic vaccines. This review helps in understanding the various developments in HNSCC therapy and sheds light on the path ahead in terms of further research in this field.
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Aslan S, Bostan Gayret O, Erol M, Mandel Isikli S, Buke O, Ozel A. Determination of the Relation Between Passive Cigarette Smoking in Children and Respiratory Tract Infections by Evaluation of Urine Cotinine/Creatinine Levels. HASEKI TIP BÜLTENI 2022. [DOI: 10.4274/haseki.galenos.2022.8045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Wang R, Li S, Wen W, Zhang J. Multi-Omics Analysis of the Effects of Smoking on Human Tumors. Front Mol Biosci 2021; 8:704910. [PMID: 34796198 PMCID: PMC8592943 DOI: 10.3389/fmolb.2021.704910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 09/15/2021] [Indexed: 12/13/2022] Open
Abstract
Comprehensive studies on cancer patients with different smoking histories, including non-smokers, former smokers, and current smokers, remain elusive. Therefore, we conducted a multi-omics analysis to explore the effect of smoking history on cancer patients. Patients with smoking history were screened from The Cancer Genome Atlas database, and their multi-omics data and clinical information were downloaded. A total of 2,317 patients were included in this study, whereby current smokers presented the worst prognosis, followed by former smokers, while non-smokers showed the best prognosis. More importantly, smoking history was an independent prognosis factor. Patients with different smoking histories exhibited different immune content, and former smokers had the highest immune cells and tumor immune microenvironment. Smokers are under a higher incidence of genomic instability that can be reversed following smoking cessation in some changes. We also noted that smoking reduced the sensitivity of patients to chemotherapeutic drugs, whereas smoking cessation can reverse the situation. Competing endogenous RNA network revealed that mir-193b-3p, mir-301b, mir-205-5p, mir-132-3p, mir-212-3p, mir-1271-5p, and mir-137 may contribute significantly in tobacco-mediated tumor formation. We identified 11 methylation driver genes (including EIF5A2, GBP6, HGD, HS6ST1, ITGA5, NR2F2, PLS1, PPP1R18, PTHLH, SLC6A15, and YEATS2), and methylation modifications of some of these genes have not been reported to be associated with tumors. We constructed a 46-gene model that predicted overall survival with good predictive power. We next drew nomograms of each cancer type. Interestingly, calibration diagrams and concordance indexes are verified that the nomograms were highly accurate for the prognosis of patients. Meanwhile, we found that the 46-gene model has good applicability to the overall survival as well as to disease-specific survival and progression-free intervals. The results of this research provide new and valuable insights for the diagnosis, treatment, and follow-up of cancer patients with different smoking histories.
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Affiliation(s)
- Rui Wang
- Department of Hepatobiliary Surgery, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Shanshan Li
- Department of Nursing, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Wen Wen
- Department of Hepatobiliary Surgery, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Jianquan Zhang
- Department of Hepatobiliary Surgery, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
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Powell SF, Vu L, Spanos WC, Pyeon D. The Key Differences between Human Papillomavirus-Positive and -Negative Head and Neck Cancers: Biological and Clinical Implications. Cancers (Basel) 2021; 13:5206. [PMID: 34680354 PMCID: PMC8533896 DOI: 10.3390/cancers13205206] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/08/2021] [Accepted: 10/13/2021] [Indexed: 12/17/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is a unique malignancy associated with two distinct risk factors: exposure to typical carcinogens and infection of human papillomavirus (HPV). HPV encodes the potent oncoproteins E6 and E7, which bypass many important oncogenic processes and result in cancer development. In contrast, HPV-negative HNSCC is developed through multiple mutations in diverse oncogenic driver genes. While the risk factors associated with HPV-positive and HPV-negative HNSCCs are discrete, HNSCC patients still show highly complex molecular signatures, immune infiltrations, and treatment responses even within the same anatomical subtypes. Here, we summarize the current understanding of biological mechanisms, treatment approaches, and clinical outcomes in comparison between HPV-positive and -negative HNSCCs.
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Affiliation(s)
- Steven F. Powell
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD 57104, USA;
| | - Lexi Vu
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA;
| | - William C. Spanos
- Cancer Biology and Immunotherapies Group, Sanford Research, Sioux Falls, SD 57104, USA;
| | - Dohun Pyeon
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA;
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Melaram R. Environmental Risk Factors Implicated in Liver Disease: A Mini-Review. Front Public Health 2021; 9:683719. [PMID: 34249849 PMCID: PMC8264448 DOI: 10.3389/fpubh.2021.683719] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 05/17/2021] [Indexed: 01/08/2023] Open
Abstract
Liver disease is a global health issue, resulting in about two million deaths per year. It encompasses a wide spectrum of varied or unknown etiologies, ranging from lifestyle choices to pre-existing comorbidities. In recent decades, exposure to environmental toxins and subsequent liver health outcomes have captured public interest, due to the extensive application of pesticides, consumption of aflatoxin contaminated foodstuff, and cyanobacterial harmful algae blooms in endemic regions of liver disease. Hepatocellular carcinoma is a serious and debilitating condition of the liver, characterized by abdominal pain and unexplained weight loss. Established risk factors for hepatocellular carcinoma include alcohol consumption, cigarette smoking, and viral infections of hepatitis B and C. However, mounting evidence suggests that environmental toxins may represent an important contributing factor in hepatocellular carcinoma development. This mini-review synthesizes epidemiological investigations, providing evidence for environmental toxins as one potential risk factor for liver disease.
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Affiliation(s)
- Rajesh Melaram
- School of Health Sciences, Walden University, Minneapolis, MN, United States
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Khaledi F, Ghasemi S. A review on epigenetic effects of environmental factors causing and inhibiting cancer. Curr Mol Med 2021; 22:8-24. [PMID: 33573554 DOI: 10.2174/1566524021666210211112800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/13/2021] [Accepted: 01/28/2021] [Indexed: 11/22/2022]
Abstract
Epigenetic modifications refer to reversible changes in gene expression. Epigenetic changes include DNA methylation, histone modification, and non-coding RNAs that are collectively called epigenome. Various epigenetic effects account for the main impacts of environment and lifestyle on multifactorial diseases such as cancers. The environment's impacts on cancers act as double-edged swords. While some of them are involved in cancer development, some others contribute to preventing it. In this review article, the keywords 'cancer', 'epigenetic', 'lifestyle', 'carcinogen', ' cancer inhibitors" and related words were searched to finding a link between environmental factors and epigenetic mechanisms influencing cancer in ISI, PUBMED, SCOPUS, and Google Scholar databases. Based on the literature environmental factors that are effective in cancer development or cancer prevention in this review will be divided into physical, chemical, biological, and lifestyle types. Different types of epigenetic mechanisms known for each of these agents will be addressed in this review. Unregulated changes in epigenome play roles in tumorigenicity and cancer development. The action mechanism and genes targeted which are related to the signaling pathway for epigenetic alterations determine whether environmental agents are carcinogenic or prevent cancer. Having knowledge about the effective factors and related mechanisms such as epigenetic on cancer can help to prevent and better cancers treatment.
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Affiliation(s)
- Fatemeh Khaledi
- Student Research Committee, Shahrekord University of Medical Sciences, Shahrekord. Iran
| | - Sorayya Ghasemi
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord. Iran
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11
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Avram GE, Marcu A, Moatar A, Samoila C, Podariu A, Seclaman E, Marian C. Changes in global DNA methylation and hydroxymethylation in oral mucosa according to tobacco smoke exposure. J Int Med Res 2020; 48:300060520954677. [PMID: 32938281 PMCID: PMC7503033 DOI: 10.1177/0300060520954677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE This prospective clinical study comparatively investigated the effects of tobacco smoking on global methylation and hydroxymethylation in oral epithelial cells. METHODS Buccal cells from the inside of the cheeks were collected from 47 individuals, including smokers, former smokers, and never smokers. DNA was extracted using dedicated kits. Methylated and hydroxymethylated DNA fractions were measured using assays similar to enzyme-linked immunosorbent assays. The levels of methylation and hydroxymethylation were compared among groups using unpaired two-tailed t-tests or the Mann-Whitney U test; P < 0.05 was considered statistically significant. RESULTS There was no statistically significant difference in the average number of cigarettes between smoker and former smoker groups. Although methylation levels were lower for smokers (3.1%) and former smokers (2.16%), compared with never smokers (4.16%), these differences were not statistically significant. There was a two-fold increase in hydroxymethylation level in never smokers, compared with smokers. CONCLUSIONS Our findings suggest that smoking leads to global reductions in both methylation and hydroxymethylation levels in oral epithelial cells in a manner influenced by the intensity and length of exposure to tobacco smoke.
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Affiliation(s)
- Gabriela-Emilia Avram
- Doctoral School, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania.,Department of Maxillofacial Surgery, Faculty of Dentistry, "Vasile Goldis" Western University of Arad, Arad, Romania
| | - Anca Marcu
- Department of Biochemistry & Pharmacology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Alexandra Moatar
- Department of Biochemistry & Pharmacology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Corina Samoila
- Department of Biochemistry & Pharmacology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Angela Podariu
- Department of Preventive Dentistry, Community and Oral Health, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Edward Seclaman
- Department of Biochemistry & Pharmacology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Catalin Marian
- Department of Biochemistry & Pharmacology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
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12
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Dator R, Villalta PW, Thomson N, Jensen J, Hatsukami DK, Stepanov I, Warth B, Balbo S. Metabolomics Profiles of Smokers from Two Ethnic Groups with Differing Lung Cancer Risk. Chem Res Toxicol 2020; 33:2087-2098. [PMID: 32293874 PMCID: PMC7434657 DOI: 10.1021/acs.chemrestox.0c00064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
African
American (AA) smokers are at a higher risk of developing
lung cancer compared to whites. The variations in the metabolism of
nicotine and tobacco-derived carcinogens in these groups were reported
previously with the levels of nicotine metabolites and carcinogen-derived
metabolites measured using targeted approaches. While useful, these
targeted strategies are not able to detect global metabolic changes
for use in predicting the detrimental effects of tobacco use and ultimately
lung cancer susceptibility among smokers. To address this limitation,
we have performed global untargeted metabolomics profiling in urine
of AA and white smokers to characterize the pattern of metabolites,
identify differentially regulated pathways, and correlate these profiles
with the observed variations in lung cancer risk between these two
populations. Urine samples from AA (n = 30) and white
(n = 30) smokers were used for metabolomics analysis
acquired in both positive and negative electrospray ionization modes.
LC-MS data were uploaded onto the cloud-based XCMS online (http://xcmsonline.scripps.edu) platform for retention time correction, alignment, feature detection,
annotation, statistical analysis, data visualization, and automated
systems biology pathway analysis. The latter identified global differences
in the metabolic pathways in the two groups including the metabolism
of carbohydrates, amino acids, nucleotides, fatty acids, and nicotine.
Significant differences in the nicotine degradation pathway (cotinine
glucuronidation) in the two groups were observed and confirmed using
a targeted LC-MS/MS approach. These results are consistent with previous
studies demonstrating AA smokers with lower glucuronidation capacity
compared to whites. Furthermore, the d-glucuronate degradation
pathway was found to be significantly different between the two populations,
with lower amounts of the putative metabolites detected in AA compared
to whites. We hypothesize that the differential regulation of the d-glucuronate degradation pathway is a consequence of the variations
in the glucuronidation capacity observed in the two groups. Other
pathways including the metabolism of amino acids, nucleic acids, and
fatty acids were also identified, however, the biological relevance
and implications of these differences across ethnic groups need further
investigation. Overall, the applied metabolomics approach revealed
global differences in the metabolic networks and endogenous metabolites
in AA and whites, which could be used and validated as a new potential
panel of biomarkers that could be used to predict lung cancer susceptibility
among smokers in population-based studies.
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Affiliation(s)
- Romel Dator
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Peter W Villalta
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Nicole Thomson
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | | | - Dorothy K Hatsukami
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Irina Stepanov
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Benedikt Warth
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währingerstraβe 38, 1090 Vienna, Austria.,Scripps Center for Metabolomics, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Silvia Balbo
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455, United States
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13
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Rogers CR, Moore JX, Qeadan F, Gu LY, Huntington MS, Holowatyj AN. Examining factors underlying geographic disparities in early-onset colorectal cancer survival among men in the United States. Am J Cancer Res 2020; 10:1592-1607. [PMID: 32509399 PMCID: PMC7269786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023] Open
Abstract
Background: Despite overall incidence reduction in colorectal cancer (CRC) the past 32 years, unexplained incidence and mortality rates have increased significantly in younger adults ages 20-49. To improve understanding of sex-specific differences among this population, we aimed to determine the variance in early-onset CRC (EOCRC) survival among US men diagnosed with CRC before age 50, while considering individual- and county-level CRC outcome determinants. Methods: Hotspots (i.e., counties with high EOCRC mortality rates) were derived from Centers for Disease Control and Prevention data from 1999-2017, and linked to SEER data for men aged 15-49 years with CRC. Cox proportional hazards models were used to compare CRC-specific survival probability and hazard in hotspots versus non-significant counties. A generalized R2 was used to estimate the total variance in EOCRC survival explained by clinicodemographic and county-level determinants. Results: We identified 232 hotspot counties for EOCRC-214 (92%) of which were in the South. In hotspots, 1,009 men were diagnosed with EOCRC and 31,438 in non-significant counties. After adjusting for age, race, tumor stage and grade, surgery, chemotherapy, radiation therapy, and marital status, men residing in hotspot counties had higher hazard of CRC-specific death (HR 1.24, 95% CI, 1.12-1.36). Individual/county-level factors explained nearly 35% of the variation in survival, and adult smoking served as the strongest county-level determinant of EOCRC survival. Conclusion: Distinct geographic patterns of EOCRC were predominantly located in the southern US. Survival after EOCRC diagnosis was significantly worse among men residing in hotspot counties.
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Affiliation(s)
- Charles R Rogers
- Department of Family and Preventive Medicine, University of Utah School of Medicine375 Chipeta Way, Suite A, Salt Lake City, Utah, USA
| | - Justin X Moore
- Department of Population Health Sciences, Augusta University1120 15th St. AE-1037, Augusta, Georgia, USA
- Institute of Public and Preventive Health, Augusta UniversityAugusta, Georgia, USA
| | - Fares Qeadan
- Department of Family and Preventive Medicine, University of Utah School of Medicine375 Chipeta Way, Suite A, Salt Lake City, Utah, USA
| | - Lily Y Gu
- Department of Family and Preventive Medicine, University of Utah School of Medicine375 Chipeta Way, Suite A, Salt Lake City, Utah, USA
| | - Matthew S Huntington
- Department of Family and Preventive Medicine, University of Utah School of Medicine375 Chipeta Way, Suite A, Salt Lake City, Utah, USA
| | - Andreana N Holowatyj
- Vanderbilt University Medical Center2525 West End Ave., Nashville, Tennessee, USA
- Vanderbilt-Ingram Cancer CenterNashville, Tennessee, USA
- Department of Population Health Sciences, University of Utah School of Medicine295 Chipeta Way, Salt Lake City, Utah, USA
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14
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Association of select vitamin D receptor gene polymorphisms with the risk of tobacco-related cancers - a meta-analysis. Sci Rep 2019; 9:16026. [PMID: 31690771 PMCID: PMC6831593 DOI: 10.1038/s41598-019-52519-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 10/18/2019] [Indexed: 12/31/2022] Open
Abstract
The observed increase in morbidity and mortality due to tobacco-related cancers, especially those in the respiratory system and esophagus, is becoming a public health challenge. Smoking cigarettes is one of the main risk factors predisposing individuals to many types of cancers. The aim of this study was to determine the role of select vitamin D receptor (VDR) gene polymorphisms as risk factors in tobacco-related cancers. The MEDLINE and ResearchGate databases were used to search for articles up to June 2017, and 12 articles including 26 studies concerning FokI, ApaI, TaqI and BsmI polymorphisms and lung, neck, head, esophageal and oral cancers were chosen. In total, 5 113 cases and 5 657 controls were included in the pooled analysis. We found a significant relationship between tobacco-related cancers and the occurrence of the “t” allele in the TaqI polymorphism of VDR. The occurrence of the “t” allele reduced the risk of tobacco-related cancers by 17% (OR = 0.83, 0.72–0.96 95% CI, p-value = 0.0114). Our analysis revealed that there is a correlation between the TaqI polymorphism of VDR and the risk of tobacco-related cancers.
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15
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Zhao F, Su JF, Lun SM, Hou YJ, Duan LJ, Wang NC, Shen FF, Zhang YW, Gao ZW, Li J, Du XJ, Zhou FY. Association between polymorphisms in the CYP1A1, CYP2E1 and GSTM1 genes, and smoking, alcohol and upper digestive tract carcinomas in a high-incidence area of northern China. Oncol Lett 2019; 18:1267-1277. [PMID: 31423187 PMCID: PMC6607096 DOI: 10.3892/ol.2019.10455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 04/14/2019] [Indexed: 12/15/2022] Open
Abstract
Metabolic gene variants, smoking, and alcohol consumption are important upper digestive tract cancer (UDTC) risk factors. However, the gene-gene and gene-environment interactions remain unclear. A case-control study in a high incidence area for upper digestive tract cancer was conducted in China. DNA was extracted from buffy coat samples for PCR or PCR-restriction fragment length polymorphism. Smoking and alcohol drinking status was determined by questionnaires. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to assess the associations. After adjusting for confounding factors, smoking increased esophageal cancer (EC), gastric cardia cancer (GCC) and gastric antral carcinoma (GAC) risk by 3.594, 4.658, and 3.999-fold, respectively. Alcohol consumption increased EC, GCC and GAC risk by 1.953, 2.442 and 1.765-fold, respectively. The cytochrome P4501A1 (CYP1A1) rs4646903 T>C polymorphism increased GCC risk, the cytochrome P4502E1 (CYP2E1) rs2031920 C>T polymorphism increased EC risk, while the GSTM1 null genotype decreased EC risk. An association existed between the following: CYP1A1 rs4646903 and smoking in EC, GCC and GAC; CYP1A1 rs4646903 and alcohol consumption in EC and GCC; CYP2E1 rs2031920 and smoking in EC, GCC and GAC and CYP2E1 rs2031920 and alcohol consumption in EC and GCC. No association was observed between CYP1A1 and CYP2E1. The glutathione S-transferase mu 1 (GSTM1) null genotype decreased EC risk (OR=0.510). Smoking/drinking are upper digestive tract cancer risk factors. The CYP1A1 rs4646903 and CYP2E1 rs2031920 polymorphisms were risk factors of GCC or EC, and the GSTM1 null genotype may serve a protective role against EC. The results of the present study indicated that gene-environment interactions increase the risk of UDTC.
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Affiliation(s)
- Fang Zhao
- Anyang Key Laboratory for Esophageal Cancer Research, Anyang Cancer Hospital, Anyang, Henan 455000, P.R. China
| | - Jing-Fen Su
- Anyang Key Laboratory for Esophageal Cancer Research, Anyang Cancer Hospital, Anyang, Henan 455000, P.R. China
| | - Shu-Min Lun
- Anyang Key Laboratory for Esophageal Cancer Research, Anyang Cancer Hospital, Anyang, Henan 455000, P.R. China
| | - Yong-Jie Hou
- Anyang Key Laboratory for Esophageal Cancer Research, Anyang Cancer Hospital, Anyang, Henan 455000, P.R. China
| | - Li-Juan Duan
- Anyang Key Laboratory for Esophageal Cancer Research, Anyang Cancer Hospital, Anyang, Henan 455000, P.R. China
| | - Neng-Chao Wang
- The Fourth Radiotherapy Department, Anyang Cancer Hospital, Anyang, Henan 455000, P.R. China
| | - Fang-Fang Shen
- Department of Key Laboratory for Tumor Translational Medicine, The Third Affiliated Hospital, Xinxiang Medical University, Xinxiang, Henan 453000, P.R. China
| | - Yao-Wen Zhang
- The First Radiotherapy Department, Anyang Cancer Hospital, Anyang, Henan 455000, P.R. China
| | - Zhao-Wei Gao
- Anyang Key Laboratory for Esophageal Cancer Research, Anyang Cancer Hospital, Anyang, Henan 455000, P.R. China
| | - Jing Li
- The Third Medicine Department, Anyang Cancer Hospital, Anyang, Henan 455000, P.R. China
| | - Xian-Juan Du
- The Pathology Department, Anyang Cancer Hospital, Anyang, Henan 455000, P.R. China
| | - Fu-You Zhou
- Anyang Key Laboratory for Esophageal Cancer Research, Anyang Cancer Hospital, Anyang, Henan 455000, P.R. China
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16
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Ibrahim BA, Al-Humaish S, Al-Obaide MAI. Tobacco Smoking, Lung Cancer, and Therapy in Iraq: Current Perspective. Front Public Health 2018; 6:311. [PMID: 30416993 PMCID: PMC6212484 DOI: 10.3389/fpubh.2018.00311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 10/09/2018] [Indexed: 01/16/2023] Open
Abstract
Tobacco smoking is a research topic of high interest to the public health in Iraq. Although Iraq is a country with a high percentage of smokers, we noticed the dearth of adequate studies and programs to deal with this problem. The percentage of smokers exceed 30% of the population and smoking problem becomes a permanent habit in adults and young people. The problems associated with tobacco smoking behavior related to individuals' post-traumatic stress disorder following post-war conflicts, and the social and cultural environment. The health consequences of tobacco smoking can harm almost every organ in the body, and there are reports confirmed the tobacco smoking is a high-risk factor for lung cancer and other diseases. The relative risk of lung cancer increases with increasing duration and intensity of smoking. Also, smoking associated with bladder, prostate, and head and neck cancers, in addition to respiratory diseases. Intervention efforts should focus on reducing the prevalence of cigarette smoking, introduce effective treatments for cancer and quit smoking. In this perspective article, we present our viewpoint and three scenarios to deal with the problem of tobacco smoking in Iraq. We recommend introducing educational, health and legislative policies for quitting smoking and using effective treatments for cancer.
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17
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Dator R, von Weymarn LB, Villalta PW, Hooyman CJ, Maertens LA, Upadhyaya P, Murphy SE, Balbo S. In Vivo Stable-Isotope Labeling and Mass-Spectrometry-Based Metabolic Profiling of a Potent Tobacco-Specific Carcinogen in Rats. Anal Chem 2018; 90:11863-11872. [PMID: 30086646 DOI: 10.1021/acs.analchem.8b01881] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The tobacco-specific nitrosamine, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), is a potent lung carcinogen that exerts its carcinogenic effects upon metabolic activation. The identification and quantitation of NNK metabolites could identify potential biomarkers of bioactivation and detoxification of this potent carcinogen and may be used to predict lung cancer susceptibility among smokers. Here, we used in vivo isotope-labeling and high-resolution-mass-spectrometry-based methods for the comprehensive profiling of all known and unknown NNK metabolites. The sample-enrichment, LC-MS, and data-analysis workflow, including a custom script for automated d0- d4- m/ z-pair-peak detection, enabled unbiased identification of numerous NNK metabolites. The structures of the metabolites were confirmed using targeted LC-MS2 with retention-time ( tR) and MS2-fragmentation comparisons to those of standards when possible. Eleven known metabolites and unchanged NNK were identified simultaneously. More importantly, our workflow revealed novel NNK metabolites, including 1,3-Diol (13), α-OH-methyl-NNAL-Gluc (14), nitro-NK- N-oxide (15), nitro-NAL- N-oxide (16), γ-OH NNAL (17), and three N-acetylcysteine (NAC) metabolites (18a-c). We measured the differences in the relative distributions of a panel of nitroso-containing NNK-specific metabolites in rats before and after phenobarbital (PB) treatment, and this served as a demonstration of a general strategy for the detection of metabolic differences in animal and cell systems. Lastly, we generated a d4-labeled NNK-metabolite mixture to be used as internal standards ( d4-rat urine) for the relative quantitation of NNK metabolites in humans, and this new strategy will be used to assess carcinogen exposure and ultimately to evaluate lung-cancer risk and susceptibility in smokers.
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Affiliation(s)
- Romel Dator
- Masonic Cancer Center , University of Minnesota , 2231 Sixth Street Southeast , Minneapolis , Minnesota 55455 , United States
| | - Linda B von Weymarn
- Masonic Cancer Center , University of Minnesota , 2231 Sixth Street Southeast , Minneapolis , Minnesota 55455 , United States
| | - Peter W Villalta
- Masonic Cancer Center , University of Minnesota , 2231 Sixth Street Southeast , Minneapolis , Minnesota 55455 , United States
| | - Cory J Hooyman
- Independent Consultant , 3732 Harriet Avenue South , Minneapolis , Minnesota 55409 , United States
| | - Laura A Maertens
- Masonic Cancer Center , University of Minnesota , 2231 Sixth Street Southeast , Minneapolis , Minnesota 55455 , United States
| | - Pramod Upadhyaya
- Masonic Cancer Center , University of Minnesota , 2231 Sixth Street Southeast , Minneapolis , Minnesota 55455 , United States
| | - Sharon E Murphy
- Masonic Cancer Center , University of Minnesota , 2231 Sixth Street Southeast , Minneapolis , Minnesota 55455 , United States
| | - Silvia Balbo
- Masonic Cancer Center , University of Minnesota , 2231 Sixth Street Southeast , Minneapolis , Minnesota 55455 , United States
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18
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Al-Obaide MAI, Ibrahim BA, Al-Humaish S, Abdel-Salam ASG. Genomic and Bioinformatics Approaches for Analysis of Genes Associated With Cancer Risks Following Exposure to Tobacco Smoking. Front Public Health 2018; 6:84. [PMID: 29616208 PMCID: PMC5869936 DOI: 10.3389/fpubh.2018.00084] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 03/05/2018] [Indexed: 01/03/2023] Open
Abstract
Cancer is a significant health problem in the Middle East and global population. It is well established that there is a direct link between tobacco smoking and cancer, which will continue to pose a significant threat to human health. The impact of long-term exposure to tobacco smoke on the risk of cancer encouraged the study of biomarkers for vulnerable individuals to tobacco smoking, especially children, who are more susceptible than adults to the action of environmental carcinogens. The carcinogens in tobacco smoke condensate induce DNA damage and play a significant role in determining the health and well-being of smokers, non-smoker, and primarily children. Cancer is a result of genomic and epigenomic malfunctions that lead to an initial premalignant condition. Although premalignancy genetic cascade is a much-delayed process, it will end with adverse health consequences. In addition to the DNA damage and mutations, tobacco smoke can cause changes in the DNA methylation and gene expression associated with cancer. The genetic events hint on the possible use of genomic–epigenomic changes in genes related to cancer, in predicting cancer risks associated with exposure to tobacco smoking. Bioinformatics provides indispensable tools to identify the cascade of expressed genes in active smokers and non-smokers and could assist the development of a framework to manage this cascade of events linked with the evolvement of disease including cancer. The aim of this mini review is to cognize the essential genomic processes and health risks associated with tobacco smoking and the implications of bioinformatics in cancer prediction, prevention, and intervention.
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Affiliation(s)
- Mohammed A I Al-Obaide
- Department of Biomedical Science, School of Pharmacy, Texas Tech University Health Science Center, Amarillo, TX, United States
| | | | | | - Abdel-Salam G Abdel-Salam
- Department of Mathematics, Statistics and Physics, College of Arts and Sciences, Qatar University, Doha, Qatar
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19
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He X, Zhang C, Shi C, Lu Q. Meta-analysis of mRNA expression profiles to identify differentially expressed genes in lung adenocarcinoma tissue from smokers and non-smokers. Oncol Rep 2018; 39:929-938. [PMID: 29328493 PMCID: PMC5802042 DOI: 10.3892/or.2018.6197] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 12/29/2017] [Indexed: 11/24/2022] Open
Abstract
Compared to other types of lung cancer, lung adenocarcinoma patients with a history of smoking have a poor prognosis during the treatment of lung cancer. How lung adenocarcinoma-related genes are differentially expressed between smoker and non-smoker patients has yet to be fully elucidated. We performed a meta-analysis of four publicly available microarray datasets related to lung adenocarcinoma tissue in patients with a history of smoking using R statistical software. The top 50 differentially expressed genes (DEGs) in smoking vs. non‑smoking patients are shown using heat maps. Additionally, we conducted KEGG and GO analyses. In addition, we performed a PPI network analysis for 8 genes that were selected during a previous analysis. We identified a total of 2,932 DEGs (1,806 upregulated, 1,126 downregulated) and five genes (CDC45, CDC20, ANAPC7, CDC6, ESPL1) that may link lung adenocarcinoma to smoking history. Our study may provide new insights into the complex mechanisms of lung adenocarcinoma in smoking patients, and our novel gene expression signatures will be useful for future clinical studies.
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Affiliation(s)
- Xiaona He
- Department of Biostatistics and Epidemiology, School of Public Health, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Cheng Zhang
- Center for Experimental Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Chao Shi
- Center for Experimental Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Quqin Lu
- Department of Biostatistics and Epidemiology, School of Public Health, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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20
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Brindis CD. Setting the Stage: Advancing a Cancer Prevention Agenda for Young Adults. Am J Prev Med 2017; 53:S1-S4. [PMID: 28818239 DOI: 10.1016/j.amepre.2017.04.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 03/31/2017] [Accepted: 04/11/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Claire D Brindis
- Philip R. Lee Institute for Health Policy Studies and the Adolescent and Young Adult Health National Resource Center, University of California, San Francisco, San Francisco, California.
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21
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Ochieng J, Nangami GN, Ogunkua O, Miousse IR, Koturbash I, Odero-Marah V, McCawley LJ, Nangia-Makker P, Ahmed N, Luqmani Y, Chen Z, Papagerakis S, Wolf GT, Dong C, Zhou BP, Brown DG, Colacci AM, Hamid RA, Mondello C, Raju J, Ryan EP, Woodrick J, Scovassi AI, Singh N, Vaccari M, Roy R, Forte S, Memeo L, Salem HK, Amedei A, Al-Temaimi R, Al-Mulla F, Bisson WH, Eltom SE. The impact of low-dose carcinogens and environmental disruptors on tissue invasion and metastasis. Carcinogenesis 2015; 36 Suppl 1:S128-59. [PMID: 26106135 DOI: 10.1093/carcin/bgv034] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The purpose of this review is to stimulate new ideas regarding low-dose environmental mixtures and carcinogens and their potential to promote invasion and metastasis. Whereas a number of chapters in this review are devoted to the role of low-dose environmental mixtures and carcinogens in the promotion of invasion and metastasis in specific tumors such as breast and prostate, the overarching theme is the role of low-dose carcinogens in the progression of cancer stem cells. It is becoming clearer that cancer stem cells in a tumor are the ones that assume invasive properties and colonize distant organs. Therefore, low-dose contaminants that trigger epithelial-mesenchymal transition, for example, in these cells are of particular interest in this review. This we hope will lead to the collaboration between scientists who have dedicated their professional life to the study of carcinogens and those whose interests are exclusively in the arena of tissue invasion and metastasis.
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Affiliation(s)
- Josiah Ochieng
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA, Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA, Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA, Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA, Department of Pathology, Wayne State University, Detroit, MI 48201, USA, Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia, Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA, Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA, Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy, Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA, Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India, Mediterranean Institute of Oncology, Viagrande 95029, Italy, Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt, Department of Experimental and
| | - Gladys N Nangami
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA, Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA, Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA, Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA, Department of Pathology, Wayne State University, Detroit, MI 48201, USA, Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia, Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA, Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA, Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy, Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA, Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India, Mediterranean Institute of Oncology, Viagrande 95029, Italy, Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt, Department of Experimental and
| | - Olugbemiga Ogunkua
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA, Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA, Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA, Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA, Department of Pathology, Wayne State University, Detroit, MI 48201, USA, Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia, Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA, Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA, Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy, Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA, Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India, Mediterranean Institute of Oncology, Viagrande 95029, Italy, Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt, Department of Experimental and
| | - Isabelle R Miousse
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Igor Koturbash
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Valerie Odero-Marah
- Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA
| | - Lisa J McCawley
- Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA
| | | | - Nuzhat Ahmed
- Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia
| | - Yunus Luqmani
- Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait
| | - Zhenbang Chen
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA, Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA, Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA, Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA, Department of Pathology, Wayne State University, Detroit, MI 48201, USA, Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia, Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA, Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA, Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy, Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA, Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India, Mediterranean Institute of Oncology, Viagrande 95029, Italy, Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt, Department of Experimental and
| | - Silvana Papagerakis
- Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA
| | - Gregory T Wolf
- Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA
| | - Chenfang Dong
- Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA
| | - Binhua P Zhou
- Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA
| | - Dustin G Brown
- Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA
| | - Anna Maria Colacci
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy
| | - Roslida A Hamid
- Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia
| | - Chiara Mondello
- Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy
| | - Jayadev Raju
- Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada
| | - Elizabeth P Ryan
- Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA
| | - Jordan Woodrick
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - A Ivana Scovassi
- Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy
| | - Neetu Singh
- Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India
| | - Monica Vaccari
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy
| | - Rabindra Roy
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Stefano Forte
- Mediterranean Institute of Oncology, Viagrande 95029, Italy
| | - Lorenzo Memeo
- Mediterranean Institute of Oncology, Viagrande 95029, Italy
| | - Hosni K Salem
- Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze 50134, Italy and
| | - Rabeah Al-Temaimi
- Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait
| | - Fahd Al-Mulla
- Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait
| | - William H Bisson
- Environmental and Molecular Toxicology, Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA
| | - Sakina E Eltom
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA, Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA, Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA, Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA, Department of Pathology, Wayne State University, Detroit, MI 48201, USA, Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia, Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA, Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA, Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy, Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA, Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India, Mediterranean Institute of Oncology, Viagrande 95029, Italy, Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt, Department of Experimental and
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22
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Uchiyama T, Koike R, Yuma Y, Okamoto K, Arimoto-Kobayashi S, Suzuki T, Negishi T. Somatic-cell mutation induced by short exposures to cigarette smoke in urate-null, oxidative stress-sensitive Drosophila. Mutagenesis 2015; 31:9-15. [PMID: 26138228 DOI: 10.1093/mutage/gev051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
We previously reported that a urate-null strain of Drosophila is hypersensitive to cigarette smoke (CS), and we suggested that CS induces oxidative stress in Drosophila because uric acid is a potent antioxidant. Although the carcinogenic risk of CS exposure is widely recognized; documentation of in vivo genotoxic activity of environmental CS, especially gaseous-phase CS, remains inconclusive. To date, somatic-cell mutations in Drosophila resulting from exposure to CS have not been detected via the somatic mutation and recombination test (wing spot test) with wild-type flies, a widely used Drosophila assay for the detection of somatic-cell mutation; moreover, genotoxicity has not been documented via a DNA repair test that involves DNA repair-deficient Drosophila. In this study, we used a new Drosophila strain (y v ma-l; mwh) to examine the mutagenicity induced by gaseous-phase CS; these flies are urate-null due to a mutation in ma-l, and they are heterozygous for multiple wing hair (mwh), a mutation that functions as a marker for somatic-cell mutation. In an assay with this newly developed strain, a superoxide anion-producing weed-killer, paraquat, exhibited significant mutagenicity; in contrast, paraquat was hardly mutagenic with a wild-type strain. Drosophila larvae were exposed to CS for 2, 4 or 6h, and then kept at 25°C on instant medium until adulthood. After eclosion, mutant spots, which consisted of mutant hairs on wings, were scored. The number of mutant spots increased significantly in an exposure time-dependent manner in the urate-null females (ma-l (-/-)), but not in the urate-positive females (ma-l (+/-)). In this study, we showed that short-term exposure to CS was mutagenic in this in vivo system. In addition, we obtained suggestive data regarding reactive oxygen species production in larva after CS exposure using the fluorescence probe H2DCFDA. These results suggest that oxidative damage, which might be countered by uric acid, was partly responsible for induction of somatic cell mutations in Drosophila larvae exposed to CS.
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Affiliation(s)
| | | | | | | | | | - Toshinori Suzuki
- School of Pharmacy, Shujitsu University, Okayama 703-8516, Japan
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23
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Wassenaar CA, Conti DV, Das S, Chen P, Cook EH, Ratain MJ, Benowitz NL, Tyndale RF. UGT1A and UGT2B genetic variation alters nicotine and nitrosamine glucuronidation in european and african american smokers. Cancer Epidemiol Biomarkers Prev 2014; 24:94-104. [PMID: 25277794 DOI: 10.1158/1055-9965.epi-14-0804] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Identifying sources of variation in the nicotine and nitrosamine metabolic inactivation pathways is important to understanding the relationship between smoking and cancer risk. Numerous UGT1A and UGT2B enzymes are implicated in nicotine and nitrosamine metabolism in vitro; however, little is known about their roles in vivo. METHODS Within UGT1A1, UGT1A4, UGT1A9, UGT2B7, UGT2B10, and UGT2B17, 47 variants were genotyped, including UGT2B10*2 and UGT2B17*2. The association between variation in these UGTs and glucuronidation activity within European and African American current smokers (n = 128), quantified as urinary ratios of the glucuronide over unconjugated compound for nicotine, cotinine, trans-3'-hydroxycotinine, and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), was investigated in regression models assuming a dominant effect of variant alleles. RESULTS Correcting for multiple testing, three UGT2B10 variants were associated with cotinine glucuronidation, rs2331559 and rs11726322 in European Americans and rs835309 in African Americans (P ≤ 0.0002). Additional variants predominantly in UGT2B10 were nominally associated with nicotine (P = 0.008-0.04) and cotinine (P = <0.001-0.02) glucuronidation in both ethnicities in addition to UGT2B10*2 in European Americans (P = 0.01, P < 0.001). UGT2B17*2 (P = 0.03) in European Americans and UGT2B7 variants (P = 0.02-0.04) in African Americans were nominally associated with 3HC glucuronidation. UGT1A (P = 0.007-0.01), UGT2B10 (P = 0.02), and UGT2B7 (P = 0.02-0.03) variants in African Americans were nominally associated with NNAL glucuronidation. CONCLUSIONS Findings from this initial in vivo study support a role for multiple UGTs in the glucuronidation of tobacco-related compounds in vivo, in particular UGT2B10 and cotinine glucuronidation. IMPACT Findings also provide insight into ethnic differences in glucuronidation activity, which could be contributing to ethnic disparities in the risk for smoking-related cancers. Cancer Epidemiol Biomarkers Prev; 24(1); 94-104. ©2014 AACR.
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Affiliation(s)
- Catherine A Wassenaar
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - David V Conti
- Department of Preventive Medicine, University of Southern California, Los Angeles, California
| | - Soma Das
- Department of Human Genetics, University of Chicago, Chicago, Illinois
| | - Peixian Chen
- Department of Human Genetics, University of Chicago, Chicago, Illinois
| | - Edwin H Cook
- Department of Psychiatry, University of Illinois at Chicago, Chicago, Illinois
| | - Mark J Ratain
- Department of Medicine, Committee on Clinical Pharmacology and Pharmacogenomics, Cancer Research Center, University of Chicago, Chicago, Illinois
| | - Neal L Benowitz
- Division of Clinical Pharmacology and Experimental Therapeutics, Department of Medicine, University of California San Francisco, San Francisco, California. Department of Bioengineering and Therapeutic Science, University of California San Francisco, San Francisco, California
| | - Rachel F Tyndale
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada. Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada. Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.
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24
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Baldwin DA, Sarnowski CP, Reddy SA, Blair IA, Clapper M, Lazarus P, Li M, Muscat JE, Penning TM, Vachani A, Whitehead AS. Development of a genotyping microarray for studying the role of gene-environment interactions in risk for lung cancer. J Biomol Tech 2014; 24:198-217. [PMID: 24294113 DOI: 10.7171/jbt.13-2404-004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A microarray (LungCaGxE), based on Illumina BeadChip technology, was developed for high-resolution genotyping of genes that are candidates for involvement in environmentally driven aspects of lung cancer oncogenesis and/or tumor growth. The iterative array design process illustrates techniques for managing large panels of candidate genes and optimizing marker selection, aided by a new bioinformatics pipeline component, Tagger Batch Assistant. The LungCaGxE platform targets 298 genes and the proximal genetic regions in which they are located, using ≈ 13,000 DNA single nucleotide polymorphisms (SNPs), which include haplotype linkage markers with a minimum allele frequency of 1% and additional specifically targeted SNPs, for which published reports have indicated functional consequences or associations with lung cancer or other smoking-related diseases. The overall assay conversion rate was 98.9%; 99.0% of markers with a minimum Illumina design score of 0.6 successfully generated allele calls using genomic DNA from a study population of 1873 lung-cancer patients and controls.
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Affiliation(s)
- Don A Baldwin
- Pathonomics LLC, Philadelphia, Pennsylvania 19104, USA; ; Center of Excellence in Environmental Toxicology
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25
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Mei C, Hou M, Guo S, Hua F, Zheng D, Xu F, Jiang Y, Li L, Qiao Y, Fan Y, Zhou Q. Polymorphisms in DNA repair genes of XRCC1, XPA, XPC, XPD and associations with lung cancer risk in Chinese people. Thorac Cancer 2014; 5:232-42. [PMID: 26767006 DOI: 10.1111/1759-7714.12073] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 09/01/2013] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The carcinogenic chemicals and reactive oxygen species in tobacco can result in DNA damage. DNA repair genes play an important role in maintaining genome integrity. Genetic polymorphisms of DNA repair genes and smoking may contribute to susceptibility of lung cancer. METHODS In this hospital-based case-control study, we investigated the relationship between 13 tagging single nucleotide polymorphisms (SNPs) in base excision repair pathway and nucleotide excision repair pathway genes, smoking, and lung cancer susceptibility. Thirteen tag SNPs were genotyped in 265 lung cancer patients and 301 healthy controls. Logistic regression and multifactor dimensionality reduction method were applied to explore the association and high-order gene-gene and gene-smoking interaction. RESULTS In single tag SNP analysis, XPA rs2808668, XPC rs2733533, and XPD rs1799787 were significantly associated with lung cancer susceptibility. Joint effects analysis of XPA rs2808668, XPC rs2733533 and XPD rs1799787 showed that there was an increased risk of lung cancer with increasing numbers of risk alleles. Haplotype analysis showed that XRCC1 (rs25487, rs1799782, rs3213334) GCC had a positive association with lung cancer. Analysis of gene-gene and gene-smoking interaction by multifactor dimensionality reduction showed that a positive interaction existed between the four genes and smoking. The two-factor model, including XPC rs2755333 and smoking, had the best prediction ability for lung cancer. Compared with the C/C genotype of XPC rs2733533 and no smoking, the combination of genotype A carriers with XPC rs2733533 and heavy smokers (≥30 pack-year) had a 13.32-fold risk of lung cancer. CONCLUSION Our results suggest multiple genetic variants in multiple DNA repair genes may jointly contribute to lung cancer risk through gene-gene and gene-smoking interactions.
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Affiliation(s)
- Chaorong Mei
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital Tianjin, China; Tibet Chengdu branch of West China Hospital, Sichuan University Changdu, China
| | - Mei Hou
- Cancer Center, West China Hospital, Sichuan University Chengdu, China
| | - Shanxian Guo
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital Tianjin, China
| | - Feng Hua
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital Tianjin, China
| | - Dejie Zheng
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital Tianjin, China
| | - Feng Xu
- Cancer Center, West China Hospital, Sichuan University Chengdu, China
| | - Yong Jiang
- Department of Cancer Epidemiology, Cancer Institute, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing, China
| | - Lu Li
- Cancer Center, West China Hospital, Sichuan University Chengdu, China
| | - Youlin Qiao
- Department of Cancer Epidemiology, Cancer Institute, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing, China
| | - Yaguang Fan
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital Tianjin, China
| | - Qinghua Zhou
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital Tianjin, China
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26
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Pesta DH, Angadi SS, Burtscher M, Roberts CK. The effects of caffeine, nicotine, ethanol, and tetrahydrocannabinol on exercise performance. Nutr Metab (Lond) 2013; 10:71. [PMID: 24330705 PMCID: PMC3878772 DOI: 10.1186/1743-7075-10-71] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Accepted: 12/02/2013] [Indexed: 01/01/2023] Open
Abstract
Caffeine, nicotine, ethanol and tetrahydrocannabinol (THC) are among the most prevalent and culturally accepted drugs in western society. For example, in Europe and North America up to 90% of the adult population drinks coffee daily and, although less prevalent, the other drugs are also used extensively by the population. Smoked tobacco, excessive alcohol consumption and marijuana (cannabis) smoking are addictive and exhibit adverse health effects. These drugs are not only common in the general population, but have also made their way into elite sports because of their purported performance-altering potential. Only one of the drugs (i.e., caffeine) has enough scientific evidence indicating an ergogenic effect. There is some preliminary evidence for nicotine as an ergogenic aid, but further study is required; cannabis and alcohol can exhibit ergogenic potential under specific circumstances but are in general believed to be ergolytic for sports performance. These drugs are currently (THC, ethanol) or have been (caffeine) on the prohibited list of the World Anti-Doping Agency or are being monitored (nicotine) due to their potential ergogenic or ergolytic effects. The aim of this brief review is to evaluate the effects of caffeine, nicotine, ethanol and THC by: 1) examining evidence supporting the ergogenic or ergolytic effects; 2) providing an overview of the mechanism(s) of action and physiological effects; and 3) where appropriate, reviewing their impact as performance-altering aids used in recreational and elite sports.
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Affiliation(s)
- Dominik H Pesta
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
- Department of Sports Science, Medical Section, University Innsbruck, Innsbruck, Austria
| | - Siddhartha S Angadi
- Healthy Lifestyles Research Center, School of Nutrition and Health Promotion, Arizona State University, Phoenix, AZ, USA
| | - Martin Burtscher
- Department of Sports Science, Medical Section, University Innsbruck, Innsbruck, Austria
| | - Christian K Roberts
- Exercise and Metabolic Disease Research Laboratory, Translational Sciences Section, School of Nursing, University of California, Los Angeles, CA, USA
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27
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Weber S, Hebestreit M, Wilms T, Conroy LL, Rodrigo G. Comet assay and air-liquid interface exposure system: a new combination to evaluate genotoxic effects of cigarette whole smoke in human lung cell lines. Toxicol In Vitro 2013; 27:1987-91. [PMID: 23845897 DOI: 10.1016/j.tiv.2013.06.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 05/14/2013] [Accepted: 06/27/2013] [Indexed: 11/29/2022]
Abstract
Over the past three decades, the genotoxic effects of cigarette smoke have generally been evaluated in non-human cell models after exposure to particulate phase, gas phase, or cigarette smoke condensate, rather than the whole smoke aerosol itself. In vitro setups using human cell lines and whole smoke exposure to mimic actual aerosol exposure should more accurately reflect human cigarette smoke exposure. We investigated the VITROCELL® 24 air-liquid interface exposure system in combination with the comet assay to assess DNA damage in two different human lung epithelial cell lines exposed to whole smoke. Results showed a repeatable and reproducible dose-response relationship between DNA damage and increased whole smoke dose in both cell lines. Thus, the combination of the comet assay with the VITROCELL® 24 represents a valuable new in vitro test system to screen and assess DNA damage in human lung cells exposed to whole smoke.
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Affiliation(s)
- Susanne Weber
- Philip Morris International R&D, Philip Morris Research Laboratories GmbH, Fuggerstr. 3, 51149 Cologne, Germany
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28
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White MC, Peipins LA, Watson M, Trivers KF, Holman DM, Rodriguez JL. Cancer prevention for the next generation. J Adolesc Health 2013; 52:S1-7. [PMID: 23601606 PMCID: PMC4402978 DOI: 10.1016/j.jadohealth.2013.02.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Revised: 02/27/2013] [Accepted: 02/28/2013] [Indexed: 12/15/2022]
Abstract
Given the continued growth in the number of persons with cancer in the United States, the primary prevention of cancer remains an urgent public health priority. As the field of cancer prevention continues to mature and scientific knowledge evolves, it is imperative to challenge the status quo and embrace new approaches to cancer prevention. In this commentary, we summarize recent trends and some of the scientific advances that have been made over the past few decades regarding the complex process of cancer development and the interaction of individual and social risk factors. We examine some of the assumptions and terminology that have characterized cancer prevention approaches for more than a quarter century and the impact of these assumptions and our use of terminology. We propose that it is possible for today's youth to experience lower cancer incidence rates as adults compared with previous generations. To accomplish this goal, a more transdisciplinary and multifaceted approach is needed, adapted as appropriate for different populations and stages of life. The greatest improvements in cancer prevention may occur as a result of innovative, multilevel interventions that build on the expanding scientific evidence base.
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Affiliation(s)
- Mary C White
- Division of Cancer Prevention and Control, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia 3034, USA.
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Jin L, Sturgis EM, Zhang Y, Huang Z, Wei P, Guo W, Wang Z, Wei Q, Song X, Li G. Genetic variants in p53-related genes confer susceptibility to second primary malignancy in patients with index squamous cell carcinoma of head and neck. Carcinogenesis 2013; 34:1551-7. [PMID: 23508638 DOI: 10.1093/carcin/bgt096] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Because of their important roles in mediating the stabilization and expression of p53, we hypothesized that high-risk genotypes of polymorphisms in p53-related genes, including p53, p73, p14(ARF), MDM2 and MDM4, may be associated with an increased risk of second primary malignancy (SPM) after index squamous cell carcinoma of the head and neck (SCCHN). We analyzed data from a cohort of 1283 patients with index SCCHN who were recruited between 1995 and 2007 at MD Anderson Cancer Center and followed for SPM development. Patients were genotyped for nine polymorphisms of p53-related genes. A log-rank test and Cox models were used to compare SPM-free survival and risk. Our results demonstrated that each p53-related polymorphism had a moderate effect on increased SPM risk, but when we combined risk genotypes of these nine polymorphisms together, we found that SPM-free survival was significantly shorter among risk groups with a greater number of combined risk genotypes. SPM risk increased with increasing number of risk genotypes (P < 0.0001 for trend). Compared with the low-risk group (0-3 combined risk genotypes), both the medium-risk (4-5 combined risk genotypes) and high-risk (6-9 combined risk genotypes) groups had significantly increased SPM risk [hazard ratio (HR): 1.6; 95% confidence interval (CI): 1.0-2.6 and HR: 3.0; 95% CI: 1.8-5.0, respectively]. Moreover, such significant associations were even higher in several subgroups. Our findings suggest that combined risk genotypes of p53-related genes may jointly modify SPM risk, especially in patients who are smokers and those with index non-oropharyngeal cancers. However, larger studies are needed to validate our findings.
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Affiliation(s)
- Lei Jin
- Department of Head & Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Phillips DH, Venitt S. DNA and protein adducts in human tissues resulting from exposure to tobacco smoke. Int J Cancer 2012; 131:2733-53. [PMID: 22961407 DOI: 10.1002/ijc.27827] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Accepted: 09/03/2012] [Indexed: 12/15/2022]
Abstract
Tobacco smoke contains a variety of genotoxic carcinogens that form adducts with DNA and protein in the tissues of smokers. Not only are these biochemical events relevant to the carcinogenic process, but the detection of adducts provides a means of monitoring exposure to tobacco smoke. Characterization of smoking-related adducts has shed light on the mechanisms of smoking-related diseases and many different types of smoking-derived DNA and protein adducts have been identified. Such approaches also reveal the potential harm of environmental tobacco smoke (ETS) to nonsmokers, infants and children. Because the majority of tobacco-smoke carcinogens are not exclusive to this source of exposure, studies comparing smokers and nonsmokers may be confounded by other environmental sources. Nevertheless, certain DNA and protein adducts have been validated as biomarkers of exposure to tobacco smoke, with continuing applications in the study of ETS exposures, cancer prevention and tobacco product legislation. Our article is a review of the literature on smoking-related adducts in human tissues published since 2002.
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Affiliation(s)
- David H Phillips
- Analytical and Environmental Sciences Division, MRC-HPA Centre for Environment and Health, King's College London, London, United Kingdom.
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Steffen A, Bergmann MM, Sánchez MJ, Chirlaque MD, Jakszyn P, Amiano P, Quirós JR, Barricarte Gurrea A, Ferrari P, Romieu I, Fedirko V, Bueno-de-Mesquita HBA, Siersema PD, Peeters PHM, Khaw KT, Wareham N, Allen NE, Crowe FL, Skeie G, Hallmanns G, Johansson I, Borgquist S, Ericson U, Egeberg R, Tjønneland A, Overvad K, Grote V, Li K, Trichopoulou A, Oikonomidou D, Pantzalis M, Tumino R, Panico S, Palli D, Krogh V, Naccarati A, Mouw T, Vergnaud AC, Norat T, Boeing H. Meat and heme iron intake and risk of squamous cell carcinoma of the upper aero-digestive tract in the European Prospective Investigation into Cancer and Nutrition (EPIC). Cancer Epidemiol Biomarkers Prev 2012; 21:2138-48. [PMID: 23033453 PMCID: PMC3519922 DOI: 10.1158/1055-9965.epi-12-0835] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Evidence from prospective studies on intake of meat and fish and risk of squamous cell carcinoma (SCC) of the upper aero-digestive tract (UADT) is scarce. We prospectively investigated the association of meat and fish intake with risk of SCC of the UADT and the possible mechanism via heme iron in the large multicenter European Prospective Investigation into Cancer and Nutrition (EPIC) study. METHODS Multivariable proportional hazards models were used to estimate relative risks (RR) of SCC of the UADT in relation to intake of total meat, as well as subtypes of meat, fish, and heme iron among 348,738 individuals from 7 European countries. RESULTS During an average follow-up of 11.8 years, a total of 682 incident cases of UADT SCC were accrued. Intake of processed meat was positively associated with risk of SCC of the UADT in the total cohort [highest vs. lowest quintile: RR = 1.41; 95% confidence interval (CI) = 1.03-1.94], however, in stratified analyses, this association was confined to the group of current smokers (highest vs. lowest quintile: RR = 1.89; 95% CI = 1.22-2.93). Red meat, poultry, fish, and heme iron were not consistently related to UADT SCC. CONCLUSION Higher intake of processed meat was positively associated with SCC of the UADT among smokers. Although this finding was stable in various sensitivity analyses, we cannot rule out residual confounding by smoking. Confirmation in future studies and identification of biologic mechanisms is warranted. IMPACT Smokers may further increase their risk for SCC of the UADT if they additionally consume large amounts of processed meat.
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Affiliation(s)
- Annika Steffen
- Department of Epidemiology, German Institute of Human Nutrition-DIfE-Potsdam-Rehbruecke, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany.
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32
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Abstract
Urinary bladder cancer is a heterogeneous disease with diverse genetic and environmental risk factors that can influence disease risk or clinical course for recurrence, progression, and survival. Therefore, identification of these factors is paramount for disease prevention and optimal clinical management of bladder cancer patients. Of particular interest is the need to identify molecular biomarkers that can give accurate assessment of tumor biological potential and to predict treatment response. Recent advances in molecular biology, cytogenetic, and genomic research have spurred discovery efforts for novel genetic, epigenetic, and proteomic biomarkers that are prognostic for cancer. This review focuses on some of the important germ line polymorphisms found to be correlated with clinical outcomes in bladder cancer. So far, most of the identified candidate loci were based on prior knowledge of pathogenesis and had not been validated for clinical applications. The future challenges are to analyze the wealth of information from whole-genome studies, to understand the underlying biological mechanisms of these associations, the network of gene-gene and gene-environment interactions, and to apply these markers for the identification of high-risk population for targeted, personalized therapy.
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Karahalil B, Bohr VA, Wilson DM. Impact of DNA polymorphisms in key DNA base excision repair proteins on cancer risk. Hum Exp Toxicol 2012; 31:981-1005. [PMID: 23023028 DOI: 10.1177/0960327112444476] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Genetic variation in DNA repair genes can modulate DNA repair capacity and may be related to cancer risk. However, study findings have been inconsistent. Inheritance of variant DNA repair genes is believed to influence individual susceptibility to the development of environmental cancer. Reliable knowledge on which the base excision repair (BER) sequence variants are associated with cancer risk would help elucidate the mechanism of cancer. Given that most of the previous studies had inadequate statistical power, we have conducted a systematic review on sequence variants in three important BER proteins. Here, we review published studies on the association between polymorphism in candidate BER genes and cancer risk. We focused on three key BER genes: 8-oxoguanine DNA glycosylase (OGG1), apurinic/apyrimidinic endonuclease (APE1/APEX1) and x-ray repair cross-complementing group 1 (XRCC1). These specific DNA repair genes were selected because of their critical role in maintaining genome integrity and, based on previous studies, suggesting that single-nucleotide polymorphisms (SNPs) in these genes have protective or deleterious effects on cancer risk. A total of 136 articles in the December 13, 2010 MEDLINE database (National Center for Biotechnology Information, http://www.ncbi.nlm.nih.gov/pubmed/) reporting polymorphism in OGG1, XRCC1 or APE1 genes were analyzed. Many of the reported SNPs had diverse association with specific human cancers. For example, there was a positive association between the OGG1 Ser326Cys variant and gastric and lung cancer, while the XRCC1 Arg399Gln variant was associated with reduced cancer risk. Gene-environment interactions have been noted and may be important for colorectal and lung cancer risk and possibly other human cancers.
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Affiliation(s)
- B Karahalil
- Department of Toxicology, Gazi University, Ankara, Turkey.
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Capo-Ramos DE, Gao Y, Lubin JH, Check DP, Goldin LR, Pesatori AC, Consonni D, Bertazzi PA, Saxon AJ, Bergen AW, Caporaso NE, Landi MT. Mood disorders and risk of lung cancer in the EAGLE case-control study and in the U.S. Veterans Affairs inpatient cohort. PLoS One 2012; 7:e42945. [PMID: 22880133 PMCID: PMC3413657 DOI: 10.1371/journal.pone.0042945] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Accepted: 07/15/2012] [Indexed: 11/19/2022] Open
Abstract
Background Mood disorders may affect lung cancer risk. We evaluated this hypothesis in two large studies. Methodology/Principal Findings We examined 1,939 lung cancer cases and 2,102 controls from the Environment And Genetics in Lung cancer Etiology (EAGLE) case-control study conducted in Italy (2002–2005), and 82,945 inpatients with a lung cancer diagnosis and 3,586,299 person-years without a lung cancer diagnosis in the U.S. Veterans Affairs Inpatient Cohort (VA study), composed of veterans with a VA hospital admission (1969–1996). In EAGLE, we calculated odds ratios (ORs) and 95% confidence intervals (CI), with extensive adjustment for tobacco smoking and multiple lifestyle factors. In the VA study, we estimated lung cancer relative risks (RRs) and 95% CIs with time-dependent Poisson regression, adjusting for attained age, calendar year, hospital visits, time within the study, and related previous medical diagnoses. In EAGLE, we found decreased lung cancer risk in subjects with a personal history of mood disorders (OR: 0.59, 95% CI: 0.44–0.79, based on 121 lung cancer incident cases and 192 controls) and family history of mood disorders (OR: 0.62, 95% CI: 0.50–0.77, based on 223 lung cancer cases and 345 controls). The VA study analyses yielded similar results (RR: 0.74, 95% CI: 0.71–0.77, based on 2,304 incident lung cancer cases and 177,267 non-cancer person-years) in men with discharge diagnoses for mood disorders. History of mood disorders was associated with nicotine dependence, alcohol and substance use and psychometric scales of depressive and anxiety symptoms in controls for these studies. Conclusions/Significance The consistent finding of a relationship between mood disorders and lung cancer risk across two large studies calls for further research into the complex interplay of risk factors associated with these two widespread and debilitating diseases. Although we adjusted for smoking effects in EAGLE, residual confounding of the results by smoking cannot be ruled out.
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Affiliation(s)
- David E. Capo-Ramos
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Ying Gao
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Jay H. Lubin
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - David P. Check
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Lynn R. Goldin
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Angela C. Pesatori
- EPOCA, Epidemiology Research Center, Universita' degli Studi di Milano, Milan, Italy
- Unit of Epidemiology, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Dario Consonni
- EPOCA, Epidemiology Research Center, Universita' degli Studi di Milano, Milan, Italy
- Unit of Epidemiology, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Pier Alberto Bertazzi
- EPOCA, Epidemiology Research Center, Universita' degli Studi di Milano, Milan, Italy
- Unit of Epidemiology, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy
| | - Andrew J. Saxon
- Veterans Affairs Puget Sound Health Care System and Addiction Psychiatry Residency Program, Seattle, Washington, United States of America
- University of Washington, Seattle, Washington, United States of America
| | - Andrew W. Bergen
- Molecular Genetics Program, Center for Health Sciences, SRI International, Menlo Park, California, United States of America
| | - Neil E. Caporaso
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Maria Teresa Landi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
- * E-mail:
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35
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Abstract
MicroRNAs, potent negative modulators of gene expression, are involved in the regulation of fundamental cellular processes, including cell differentiation, metabolic regulation, signal transduction, cell proliferation and apoptosis. Aberrant levels of miRNAs have been documented in all major human cancers, leading to the suggestion that deregulation of miRNA expression might be significant in tumorigenesis. This review presents the current evidence that demonstrates the involvement of miRNA deregulation in the early stages of lung, liver and breast carcinogenesis induced by chemical carcinogens, suggesting their major role as contributors to the pathogenesis of cancer.
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Affiliation(s)
- Igor P Pogribny
- Division of Biochemical Toxicology, National Center for Toxicological Research, 3900 NCTR Road, Jefferson, AR 72079, USA.
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36
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Balansky R, D'Agostini F, Micale RT, La Maestra S, Steele VE, De Flora S. Dose-related cytogenetic damage in pulmonary alveolar macrophages from mice exposed to cigarette smoke early in life. Arch Toxicol 2012; 86:509-16. [PMID: 21989788 DOI: 10.1007/s00204-011-0765-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Accepted: 09/29/2011] [Indexed: 12/01/2022]
Abstract
The micronucleus test detects both structural and numerical chromosomal aberrations caused by environmental agents. However, this test is poorly sensitive to detect the clastogenicity of cigarette smoke (CS) in human peripheral blood lymphocytes. At variance with peripheral blood lymphocytes and other cells outside the lower respiratory tract, pulmonary alveolar macrophages (PAM) are selectively affected by inhalable carcinogens and have been used to evaluate the modulation of CS-related cytogenetic alterations in vivo. The present study was aimed at evaluating (1) the cytogenetic response in PAM isolated from the lung of mice exposed to CS during the first 4 weeks of life and (2) the dose dependence of MN and polynucleated (PN) PAM formation in CS-exposed mice. To this purpose, ICR(CD-1) mice were exposed whole body to mainstream CS for 4 weeks, starting immediately after birth. Bronchoalveolar lavage (BAL) was performed to evaluate the cellularity of this fluid and the frequency of PN and MN PAM. At the doses of 119, 292, and 438 mg/m(3) total particulate matter, CS significantly increased both the proportion of PAM in the BAL fluid and the frequencies of PN and MN PAM. The cytogenetic effects were significantly correlated with the CS dose. In conclusion, PAM are suitable to detect induction by CS of clastogenic and aneugenic effects in mice during a developmental period corresponding to infancy, childhood, and early adolescence in humans. These surrogate cells, providing an important defense mechanism of the respiratory tract, are proposed as indicators of CS-related DNA damage in youngsters.
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Affiliation(s)
- Roumen Balansky
- National Center of Oncology, Str. Plovdivsko Pole 6, 1756 Sofia, Bulgaria.
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37
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Tekpli X, Zienolddiny S, Skaug V, Stangeland L, Haugen A, Mollerup S. DNA methylation of the CYP1A1 enhancer is associated with smoking-induced genetic alterations in human lung. Int J Cancer 2012; 131:1509-16. [PMID: 22213191 DOI: 10.1002/ijc.27421] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Accepted: 12/15/2011] [Indexed: 11/08/2022]
Abstract
CYP1A1 (cytochrome P4501A1) catalyze the conversion of polycyclic aromatic hydrocarbons into reactive metabolites, which may induce DNA damage. We hypothesized that DNA methylation of the CYP1A1 enhancer could be involved in inter-individual differences in mRNA levels of CYP1A1 or affect the smoking-induced DNA damage in human lung. Using DNA bisulfite conversion and pyrosequencing, we show that DNA methylation of the CYP1A1 enhancer is affected by smoking. In adjacent histologically normal lung from lung cancer patients (n = 120), low levels of DNA methylation of the CYP1A1 enhancer were related to high levels of smoking-induced hydrophobic DNA adduct (p < 0.03), and to the presence of TP53 or K-ras mutations in the corresponding lung tumors (p < 0.03). We found an inverse correlation between DNA methylation of the CYP1A1 enhancer and mRNA levels in vivo (Spearman r = -0.54; p < 0.0001). Thus, in lung tumor tissues, the CYP1A1 enhancer hypermethylation was associated with lower mRNA levels compared to adjacent histologically normal tissue (p < 0.0001). In vitro, using a panel of cultured human lung cells, we found hypermethylation of the CYP1A1 enhancer in cancer cell lines and an inverse correlation between DNA methylation and mRNA levels (Spearman r = -0.53; p = 0.003). Altogether, our results indicated that low levels of DNA methylation of the CYP1A1 enhancer in histologically normal human lung were associated with high CYP1A1 mRNA levels and with smoking-induced genetic alterations; thus, it may play a role in the initiation of lung carcinogenesis.
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Affiliation(s)
- Xavier Tekpli
- Section for Toxicology, Department of Biological and Chemical Working Environment, National Institute of Occupational Health, Oslo, Norway
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38
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Siegel AB, Conner K, Wang S, Jacobson JS, Hershman DL, Hidalgo R, Verna EC, Halazun K, Brubaker W, Zaretsky J, Moniodis A, Delgado-Cruzata L, Dove L, Emond J, Kato T, Brown RS, Neugut AI. Smoking and hepatocellular carcinoma mortality. Exp Ther Med 2011; 3:124-128. [PMID: 22969856 DOI: 10.3892/etm.2011.351] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 08/08/2011] [Indexed: 12/16/2022] Open
Abstract
The association between cigarette smoking and mortality from hepatocellular carcinoma (HCC) is ambiguous. We analyzed the association between smoking and mortality in HCC patients seen at our center. We collected data retrospectively on patients diagnosed with HCC between 2002 and 2009. We estimated the association of smoking history with demographic, clinical and treatment factors. We then modeled these factors as predictors of mortality. Among smokers, we analyzed the effects of pack-year history and cessation times on survival. Two hundred and twenty-three out of 444 patients with HCC had a history of smoking. Smokers were more likely to be younger at diagnosis, to have α fetoprotein (AFP) values less than the median, and to have had surgery (p=0.04) compared to non-smokers. In a Cox model, younger age, lower AFP and Child's Class were all independently predictive of survival, but smoking was not. Smokers with over 20 pack-years did not have worse survival than lighter smokers, and cessation times also did not affect survival after controlling for age. We found a significant interaction between smoking and drinking. In our data, smoking was not independently associated with HCC survival in a multivariable model. Smoking was associated with favorable prognostic features which likely outweighed any independent effect of smoking.
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Zhang X, Xiao T, Cheng S, Tong T, Gao Y. Cigarette smoke suppresses the ubiquitin-dependent degradation of OLC1. Biochem Biophys Res Commun 2011; 407:753-7. [PMID: 21439932 DOI: 10.1016/j.bbrc.2011.03.095] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Accepted: 03/19/2011] [Indexed: 02/07/2023]
Abstract
The newly identified gene, overexpressed in lung cancer 1 (OLC1), is highly expressed as OLC1 protein in the tumor tissues of lung cancer patients with histories of cigarette smoking. However, the underlying mechanisms of how the gene is affected by cigarette smoke have been poorly characterized. In this study, we investigated how OLC1 is regulated in lung cancer cells by cigarette smoke condensate (CSC). Compared to the controls, CSC treatment increased OLC1 protein levels in a dose- and time-dependent manner without affecting OLC1 mRNA levels in lung cancer cells. Ubiquitination of OLC1 protein was blocked upon CSC treatment. Biochemical analysis revealed that the ubiquitin E3 ligase anaphase promoting complex (APC) and its activators cell-division cycle protein 20 (CDC20) and cadherin-1 (CDH1) are responsible for the degradation of OLC1. However, upon introducing CSC the binding of OLC1 to the proteins CDC20, CDH1, and APC2 was impaired. These results demonstrate that CSC regulates OLC1 expression in lung cancer cells by compromising its ubiquitination and subsequent degradation through the ubiquitin E3 ligase APC.
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Affiliation(s)
- Xiaojing Zhang
- State Key Laboratory of Molecular Oncology, Cancer Institute (Hospital), Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100021, China
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Koturbash I, Beland FA, Pogribny IP. Role of epigenetic events in chemical carcinogenesis—a justification for incorporating epigenetic evaluations in cancer risk assessment. Toxicol Mech Methods 2011; 21:289-97. [DOI: 10.3109/15376516.2011.557881] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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41
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Wakai K, Hamajima N, Okada R, Naito M, Morita E, Hishida A, Kawai S, Nishio K, Yin G, Asai Y, Matsuo K, Hosono S, Ito H, Watanabe M, Kawase T, Suzuki T, Tajima K, Tanaka K, Higaki Y, Hara M, Imaizumi T, Taguchi N, Nakamura K, Nanri H, Sakamoto T, Horita M, Shinchi K, Kita Y, Turin TC, Rumana N, Matsui K, Miura K, Ueshima H, Takashima N, Nakamura Y, Suzuki S, Ando R, Hosono A, Imaeda N, Shibata K, Goto C, Hattori N, Fukatsu M, Yamada T, Tokudome S, Takezaki T, Niimura H, Hirasada K, Nakamura A, Tatebo M, Ogawa S, Tsunematsu N, Chiba S, Mikami H, Kono S, Ohnaka K, Takayanagi R, Watanabe Y, Ozaki E, Shigeta M, Kuriyama N, Yoshikawa A, Matsui D, Watanabe I, Inoue K, Ozasa K, Mitani S, Arisawa K, Uemura H, Hiyoshi M, Takami H, Yamaguchi M, Nakamoto M, Takeda H, Kubo M, Tanaka H. Profile of participants and genotype distributions of 108 polymorphisms in a cross-sectional study of associations of genotypes with lifestyle and clinical factors: a project in the Japan Multi-Institutional Collaborative Cohort (J-MICC) Study. J Epidemiol 2011; 21:223-35. [PMID: 21467728 PMCID: PMC3899413 DOI: 10.2188/jea.je20100139] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Most diseases are thought to arise from interactions between environmental factors and the host genotype. To detect gene–environment interactions in the development of lifestyle-related diseases, and especially cancer, the Japan Multi-institutional Collaborative Cohort (J-MICC) Study was launched in 2005. Methods We initiated a cross-sectional study to examine associations of genotypes with lifestyle and clinical factors, as assessed by questionnaires and medical examinations. The 4519 subjects were selected from among participants in the J-MICC Study in 10 areas throughout Japan. In total, 108 polymorphisms were chosen and genotyped using the Invader assay. Results The study group comprised 2124 men and 2395 women with a mean age of 55.8 ± 8.9 years (range, 35–69 years) at baseline. Among the 108 polymorphisms examined, 4 were not polymorphic in our study population. Among the remaining 104 polymorphisms, most variations were common (minor allele frequency ≥0.05 for 96 polymorphisms). The allele frequencies in this population were comparable with those in the HapMap-JPT data set for 45 Japanese from Tokyo. Only 5 of 88 polymorphisms showed allele-frequency differences greater than 0.1. Of the 108 polymorphisms, 32 showed a highly significant difference in minor allele frequency among the study areas (P < 0.001). Conclusions This comprehensive data collection on lifestyle and clinical factors will be useful for elucidating gene–environment interactions. In addition, it is likely to be an informative reference tool, as free access to genotype data for a large Japanese population is not readily available.
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Affiliation(s)
- Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Showa-ku, Nagoya, Japan.
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Li X, Hu Z, Qu X, Zhu J, Li L, Ring BZ, Su L. Putative EPHX1 enzyme activity is related with risk of lung and upper aerodigestive tract cancers: a comprehensive meta-analysis. PLoS One 2011; 6:e14749. [PMID: 21445251 PMCID: PMC3060809 DOI: 10.1371/journal.pone.0014749] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Accepted: 02/03/2011] [Indexed: 11/19/2022] Open
Abstract
Background EPHX1 is a key enzyme in metabolizing some exogenous carcinogens such as products of cigarette-smoking. Two functional polymorphisms in the EPHX1 gene, Tyr113His and His139Arg can alter the enzyme activity, suggesting their possible association with carcinogenesis risk, particularly of some tobacco-related cancers. Methodology/Principal Findings A comprehensive systematic review and meta-analysis was performed of available studies on these two polymorphisms and cancer risk published up to November 2010, consisting of 84 studies (31144 cases and 42439 controls) for Tyr113His and 77 studies (28496 cases and 38506 controls) for His139Arg primarily focused on lung cancer, upper aerodigestive tract (UADT) cancers (including oral, pharynx, larynx and esophagus cancers), colorectal cancer or adenoma, bladder cancer and breast cancer. Results showed that Y113H low activity allele (H) was significantly associated with decreased risk of lung cancer (OR = 0.88, 95%CI = 0.80–0.96) and UADT cancers (OR = 0.86, 95%CI = 0.77–0.97) and H139R high activity allele (R) with increased risk of lung cancer (OR = 1.18, 95%CI = 1.04–1.33) but not of UADT cancers (OR = 1.05, 95%CI = 0.93–1.17). Pooled analysis of lung and UADT cancers revealed that low EPHX1 enzyme activity, predicted by the combination of Y113H and H139R showed decreased risk of these cancers (OR = 0.83, 95%CI = 0.75–0.93) whereas high EPHX1 activity increased risk of the cancers (OR = 1.20, 95%CI = 0.98–1.46). Furthermore, modest difference for the risk of lung and UADT cancers was found between cigarette smokers and nonsmokers both in single SNP analyses (low activity allele H: OR = 0.77/0.85 for smokers/nonsmokers; high activity allele R: OR = 1.20/1.09 for smokers/nonsmokers) and in combined double SNP analyses (putative low activity: OR = 0.73/0.88 for smokers/nonsmokers; putative high activity: OR = 1.02/0.93 for smokers/ nonsmokers). Conclusions/Significance Putative low EPHX1 enzyme activity may have a potential protective effect on tobacco-related carcinogenesis of lung and UADT cancers, whereas putative high EPHX1 activity may have a harmful effect. Moreover, cigarette-smoking status may influence the association of EPHX1 enzyme activity and the related cancer risk.
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Affiliation(s)
- Xiang Li
- Key Laboratory of Molecular Biophysics of Ministry of Education, School of Life Science and Technology, Sino-France Joint Center for Drug Research and Screening, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Hu
- Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Xinshun Qu
- Department of Plant Pathology, The Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Jiadong Zhu
- Key Laboratory of Molecular Biophysics of Ministry of Education, School of Life Science and Technology, Sino-France Joint Center for Drug Research and Screening, Huazhong University of Science and Technology, Wuhan, China
| | - Lin Li
- Key Laboratory of Molecular Biophysics of Ministry of Education, School of Life Science and Technology, Sino-France Joint Center for Drug Research and Screening, Huazhong University of Science and Technology, Wuhan, China
| | | | - Li Su
- Key Laboratory of Molecular Biophysics of Ministry of Education, School of Life Science and Technology, Sino-France Joint Center for Drug Research and Screening, Huazhong University of Science and Technology, Wuhan, China
- * E-mail:
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Fujiwara M, Hamatake Y, Arimoto S, Okamoto K, Suzuki T, Negishi T. Exposure to Cigarette Smoke Increases Urate Level and Decreases Glutathione Level in Larval Drosophila melanogaster. Genes Environ 2011. [DOI: 10.3123/jemsge.33.89] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Hang B. Formation and repair of tobacco carcinogen-derived bulky DNA adducts. J Nucleic Acids 2010; 2010:709521. [PMID: 21234336 PMCID: PMC3017938 DOI: 10.4061/2010/709521] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 07/16/2010] [Accepted: 09/17/2010] [Indexed: 01/08/2023] Open
Abstract
DNA adducts play a central role in chemical carcinogenesis. The analysis of formation and repair of smoking-related DNA adducts remains particularly challenging as both smokers and nonsmokers exposed to smoke are repetitively under attack from complex mixtures of carcinogens such as polycyclic aromatic hydrocarbons and N-nitrosamines. The bulky DNA adducts, which usually have complex structure, are particularly important because of their biological relevance. Several known cellular DNA repair pathways have been known to operate in human cells on specific types of bulky DNA adducts, for example, nucleotide excision repair, base excision repair, and direct reversal involving O6-alkylguanine DNA alkyltransferase or AlkB homologs. Understanding the mechanisms of adduct formation and repair processes is critical for the assessment of cancer risk resulting from exposure to cigarette smoke, and ultimately for developing strategies of cancer prevention. This paper highlights the recent progress made in the areas concerning formation and repair of bulky DNA adducts in the context of tobacco carcinogen-associated genotoxic and carcinogenic effects.
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Affiliation(s)
- Bo Hang
- Life Sciences Division, Department of Cancer and DNA Damage Responses, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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Mota P, Horta M, Mesquita L, Silva H. Polymorphisms of GSTM1, GSTT1, GSTP1 and CYP1A1 genes and susceptibility to lung cancer. BMC Proc 2010. [DOI: 10.1186/1753-6561-4-s2-p4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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46
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Moore LE, Baris DR, Figueroa JD, Garcia-Closas M, Karagas MR, Schwenn MR, Johnson AT, Lubin JH, Hein DW, Dagnall CL, Colt JS, Kida M, Jones MA, Schned AR, Cherala SS, Chanock SJ, Cantor KP, Silverman DT, Rothman N. GSTM1 null and NAT2 slow acetylation genotypes, smoking intensity and bladder cancer risk: results from the New England bladder cancer study and NAT2 meta-analysis. Carcinogenesis 2010; 32:182-9. [PMID: 21037224 DOI: 10.1093/carcin/bgq223] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Associations between bladder cancer risk and NAT2 and GSTM1 polymorphisms have emerged as some of the most consistent findings in the genetic epidemiology of common metabolic polymorphisms and cancer, but their interaction with tobacco use, intensity and duration remain unclear. In a New England population-based case-control study of urothelial carcinoma, we collected mouthwash samples from 1088 of 1171 cases (92.9%) and 1282 of 1418 controls (91.2%) for genotype analysis of GSTM1, GSTT1 and NAT2 polymorphisms. Odds ratios and 95% confidence intervals of bladder cancer among New England Bladder Cancer Study subjects with one or two inactive GSTM1 alleles (i.e. the 'null' genotype) were 1.26 (0.85-1.88) and 1.54 (1.05-2.25), respectively (P-trend = 0.008), compared with those with two active copies. GSTT1 inactive alleles were not associated with risk. NAT2 slow acetylation status was not associated with risk among never (1.04; 0.71-1.51), former (0.95; 0.75-1.20) or current smokers (1.33; 0.91-1.95); however, a relationship emerged when smoking intensity was evaluated. Among slow acetylators who ever smoked at least 40 cigarettes/day, risk was elevated among ever (1.82; 1.14-2.91, P-interaction = 0.07) and current heavy smokers (3.16; 1.22-8.19, P-interaction = 0.03) compared with rapid acetylators in each category; but was not observed at lower intensities. In contrast, the effect of GSTM1-null genotype was not greater among smokers, regardless of intensity. Meta-analysis of the NAT2 associations with bladder cancer showed a highly significant relationship. Findings from this large USA population-based study provided evidence that the NAT2 slow acetylation genotype interacts with tobacco smoking as a function of exposure intensity.
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Affiliation(s)
- L E Moore
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20852, USA.
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Oh SS, Chang SC, Cai L, Cordon-Cardo C, Ding BG, Greenland S, He N, Jiang Q, Kheifets L, Le A, Lee YCA, Liu S, Lu ML, Mao JT, Morgenstern H, Mu LN, Pantuck A, Papp JC, Park SL, Rao JY, Reuter VE, Tashkin DP, Wang H, You NCY, Yu SZ, Zhao JK, Belldegrun A, Zhang ZF. Single nucleotide polymorphisms of 8 inflammation-related genes and their associations with smoking-related cancers. Int J Cancer 2010; 127:2169-82. [PMID: 20112337 DOI: 10.1002/ijc.25214] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Tobacco smoke and its metabolites are carcinogens that increase tissue oxidative stress and induce target tissue inflammation. We hypothesized that genetic variation of inflammatory pathway genes plays a role in tobacco-related carcinogenesis and is modified by tobacco smoking. We evaluated the association of 12 single nucleotide polymorphisms of 8 inflammation-related genes with tobacco-related cancers (lung, oropharynx, larynx, esophagus, stomach, liver, bladder, and kidney) using 3 case-control studies from: Los Angeles (population-based; 611 lung and 553 upper aero-digestive tract cancer cases and 1,040 controls), Taixing, China (population-based; 218 esophagus, 206 stomach, 204 liver cancer cases, and 415 controls), and Memorial Sloan-Kettering Cancer Center (hospital-based; 227 bladder cancer cases and 211 controls). After adjusting for age, education, ethnicity, gender, and tobacco smoking, IL10 rs1800871 was inversely associated with oropharyngeal cancer (CT+TT vs. CC adjusted odds ratio [aOR]: 0.69, 95% confidence interval [CI]: 0.50-0.95), and was positively associated with lung cancer among never smokers (TT vs. CT+CC aOR: 2.5, 95% CI: 1.3-5.1) and inversely with oropharyngeal cancer among ever smokers (CT+TT vs. CC aOR: 0.63, 95% CI: 0.41-0.95). Among all pooled never smokers (588 cases and 816 controls), TNF rs1799964 was inversely associated with smoking-related cancer (CC vs. CT+TT aOR: 0.36, 95% CI: 0.17-0.77). Bayesian correction for multiple comparisons suggests that chance is unlikely to explain our findings (although epigenetic mechanisms may be in effect), which support our hypotheses, suggesting that IL10 rs1800871 is a susceptibility marker for oropharyngeal and lung cancers, and that TNF rs1799964 is associated with smoking-related cancers among never smokers.
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Affiliation(s)
- Sam S Oh
- Department of Epidemiology, University of California, Los Angeles (UCLA) School of Public Health, Los Angeles, CA, USA
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Campaner AB, Eras AE, Paganini CBL, Galvão MAL. The effect of cigarette smoking on cell proliferation in normal uterine cervix epithelium. Arch Gynecol Obstet 2010; 284:119-23. [PMID: 20677025 DOI: 10.1007/s00404-010-1586-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2010] [Accepted: 07/04/2010] [Indexed: 01/03/2023]
Abstract
BACKGROUND The aim of this study was to evaluate the effect of smoking on cell proliferation in normal cervical epithelium. METHODS A total of 45 women undergoing hysterectomies due to uterine leiomyomata were investigated. Thirty were nonsmokers and 15 were current smokers. A segment of tissue was taken from cervix after removal of the uterus, and the identification of cell proliferation was performed by immunohistochemical analysis employing Ki-67 staining. The number of positive cells colored by Ki-67 staining was finally expressed as number of cells per square millimeter (mm²) of epithelium. RESULTS The comparison of the number of proliferating cells measured by ki-67 staining among smoking and nonsmoking women did not show significant difference. Among smoking women, there was no significant difference related to the number of cigarettes smoked per day or time of consumption and epithelial cell proliferation. However, the total amount of cigarettes smoked throughout presented significant association with Ki-67 staining (p < 0.001); the number of proliferating cells per mm² increased proportionally to the increase in consumption of cigarettes. CONCLUSIONS The results indicated that there was no significant difference between cell proliferation in smokers and nonsmokers; however, it was shown that in the smokers' group, amount of cigarettes smoked during throughout lifetime can increase cell proliferation in normal cervical epithelium.
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Affiliation(s)
- Adriana Bittencourt Campaner
- Department of Obstetrics and Gynecology, Medical Science College of Santa Casa of São Paulo, América, São Paulo, SP, 05401-200, Brazil.
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Briggs FBS, Goldstein BA, McCauley JL, Zuvich RL, De Jager PL, Rioux JD, Ivinson AJ, Compston A, Hafler DA, Hauser SL, Oksenberg JR, Sawcer SJ, Pericak-Vance MA, Haines JL, Barcellos LF. Variation within DNA repair pathway genes and risk of multiple sclerosis. Am J Epidemiol 2010; 172:217-24. [PMID: 20522537 DOI: 10.1093/aje/kwq086] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Multiple sclerosis (MS) is a complex autoimmune disease of the central nervous system with a prominent genetic component. The primary genetic risk factor is the human leukocyte antigen (HLA)-DRB1*1501 allele; however, much of the remaining genetic contribution to MS has not been elucidated. The authors investigated the relation between variation in DNA repair pathway genes and risk of MS. Single-locus association testing, epistatic tests of interactions, logistic regression modeling, and nonparametric Random Forests analyses were performed by using genotypes from 1,343 MS cases and 1,379 healthy controls of European ancestry. A total of 485 single nucleotide polymorphisms within 72 genes related to DNA repair pathways were investigated, including base excision repair, nucleotide excision repair, and double-strand breaks repair. A single nucleotide polymorphism variant within the general transcription factor IIH, polypeptide 4 gene, GTF2H4, on chromosome 6p21.33 was significantly associated with MS (odds ratio = 0.7, P = 3.5 x 10(-5)) after accounting for multiple testing and was not due to linkage disequilibrium with HLA-DRB1*1501. Although other candidate genes examined here warrant further follow-up studies, collectively, these results derived from a well-powered study do not support a strong role for common variation within DNA repair pathway genes in MS.
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Axelsson J, Bonde JP, Giwercman YL, Rylander L, Giwercman A. Gene-environment interaction and male reproductive function. Asian J Androl 2010; 12:298-307. [PMID: 20348940 DOI: 10.1038/aja.2010.16] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
As genetic factors can hardly explain the changes taking place during short time spans, environmental and lifestyle-related factors have been suggested as the causes of time-related deterioration of male reproductive function. However, considering the strong heterogeneity of male fecundity between and within populations, genetic variants might be important determinants of the individual susceptibility to the adverse effects of environment or lifestyle. Although the possible mechanisms of such interplay in relation to the reproductive system are largely unknown, some recent studies have indicated that specific genotypes may confer a larger risk of male reproductive disorders following certain exposures. This paper presents a critical review of animal and human evidence on how genes may modify environmental effects on male reproductive function. Some examples have been found that support this mechanism, but the number of studies is still limited. This type of interaction studies may improve our understanding of normal physiology and help us to identify the risk factors to male reproductive malfunction. We also shortly discuss other aspects of gene-environment interaction specifically associated with the issue of reproduction, namely environmental and lifestyle factors as the cause of sperm DNA damage. It remains to be investigated to what extent such genetic changes, by natural conception or through the use of assisted reproductive techniques, are transmitted to the next generation, thereby causing increased morbidity in the offspring.
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Affiliation(s)
- Jonatan Axelsson
- Reproductive Medicine Centre, Skåne University Hospital, Malmö 20502, Sweden
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