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Amato S, Ramsey J, Ahern TP, Rovnak J, Barlow J, Weaver D, Eyasu L, Singh R, Cintolo-Gonzalez J. Exploring the presence of bovine leukemia virus among breast cancer tumors in a rural state. Breast Cancer Res Treat 2023; 202:325-334. [PMID: 37517027 DOI: 10.1007/s10549-023-07061-4] [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: 09/29/2022] [Accepted: 05/31/2023] [Indexed: 08/01/2023]
Abstract
PURPOSE The bovine leukemia virus (BLV) is a deltaretrovirus that causes malignant lymphoma and lymphosarcomas in cattle globally and has high prevalence among large scale U.S. dairy herds. Associations between presence of BLV DNA in human mammary tissue and human breast cancer incidence have been reported. We sought to estimate the prevalence of BLV DNA in breast cancer tissue samples in a rural state with an active dairy industry. METHODS We purified genomic DNA from 56 fresh-frozen breast cancer tissue samples (51 tumor samples, 5 samples representing adjacent normal breast tissue) banked between 2016 and 2019. Using nested PCR assays, multiple BLV tax sequence primers and primers for the long terminal repeat (LTR) were used to detect BLV DNA in tissue samples and known positive control samples, including the permanently infected fetal lamb kidney cell line (FLK-BLV) and blood from BLV positive cattle. RESULTS The median age of patients from which samples were obtained at the time of treatment was 60 (40-93) and all were female. Ninety percent of patients had invasive ductal carcinoma. The majority were poorly differentiated (60%). On PCR assay, none of the tumor samples tested positive for BLV DNA, despite having consistent signals in positive controls. CONCLUSION We did not find BLV DNA in fresh-frozen breast cancer tumors from patients presenting to a hospital in Vermont. Our findings suggest a low prevalence of BLV in our patient population and a need to reevaluate the association between BLV and human breast cancer.
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Affiliation(s)
- Stas Amato
- Department of General Surgery, University of Vermont Medical Center, Burlington, VT, USA
- Department of Surgery, Larner College of Medicine, University of Vermont, 89 Beaumont Ave., B227, Burlington, VT, 05405, USA
| | - Jon Ramsey
- Department of Biochemistry, University of Vermont, Burlington, VT, USA
| | - Thomas P Ahern
- Department of Surgery, Larner College of Medicine, University of Vermont, 89 Beaumont Ave., B227, Burlington, VT, 05405, USA
| | - Joel Rovnak
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - John Barlow
- Department of Animal and Veterinary Sciences, University of Vermont, Burlington, VT, USA
| | - Donald Weaver
- Department of Pathology, University of Vermont Medical Center, Burlington, VT, USA
| | - Lud Eyasu
- Department of Surgery, Larner College of Medicine, University of Vermont, 89 Beaumont Ave., B227, Burlington, VT, 05405, USA
| | - Rohit Singh
- Division of Hematology/Oncology, Department of Medicine, University of Vermont Medical Center, Burlington, VT, USA
| | - Jessica Cintolo-Gonzalez
- Department of General Surgery, University of Vermont Medical Center, Burlington, VT, USA.
- Department of Surgery, Larner College of Medicine, University of Vermont, 89 Beaumont Ave., B227, Burlington, VT, 05405, USA.
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Reng Q, Zhu LL, Feng L, Li YJ, Zhu YX, Wang TT, Jiang F. Dietary meat mutagens intake and cancer risk: A systematic review and meta-analysis. Front Nutr 2022; 9:962688. [PMID: 36211500 PMCID: PMC9537819 DOI: 10.3389/fnut.2022.962688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 09/01/2022] [Indexed: 11/25/2022] Open
Abstract
Background Clinical and preclinical studies suggested that certain mutagens occurring as a reaction of creatine, amino acids, and sugar during the high temperature of cooking meat are involved in the pathogenesis of human cancer. Here we conducted a systematic review and meta-analysis to examine whether meat mutagens [PhIP, MeIQx, DiMeIQx, total HCA, and B(a)P] present a risk factor for human cancer. Methods We searched the following databases for relevant articles published from inception to 10 Oct 2021 with no language restrictions: Pubmed, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), Baidu Academic, Zhejiang Digital Library. Two independent researchers screened all titles and obtained eligible texts for further screening. Independent data extraction was conducted, and meta-analysis was carried out using random-effects models to calculate the risk ratio of the meat mutagens exposure. Results A total of 1,786,410 participants and 70,653 cancer cases were identified. Among these, there were 12 different types of cancer at various sites, i.e., breast, bladder, colorectal, colon, rectum, prostate, lung, Non-Hodgkin lymphoma, kidney, gastric, esophagus, pancreatic, hepatocellular carcinoma. Cancer risk was significantly increased by intake of PhIP (OR = 1.13;95% CI 1.07–1.21; p < 0.001), MeIQx (OR = 1.14; 95% CI: 1.07–1.21; p < 0.001), DiMeIQx (OR = 1.07; 95% CI: 1.01–1.13; p = 0.013), total HCA (OR = 1.20; 95% CI: 1.03–1.38; p = 0.016), and cancer risk was not significantly increased by intake of B(a)P (OR = 1.04; 95% CI: 0.98–1.10; p = 0.206). Conclusion Meat mutagens of PhIP, MeIQx, DiMeIQx, and total HCA have a positive association with the risk of cancer. Systematic review registration [www.crd.york.ac.uk/prospero], identifier [CRD42022148856].
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Pelland-St-Pierre L, Sernoskie SC, Verner MA, Ho V. Genotoxic effect of meat consumption: A mini review. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2021; 863-864:503311. [PMID: 33678247 DOI: 10.1016/j.mrgentox.2021.503311] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 11/25/2022]
Abstract
In 2015, the International Agency for Research on Cancer classified the consumption of processed meat as carcinogenic to humans (Group 1) and red meat as probably carcinogenic to humans (Group 2A) based on sufficient data from animal models and epidemiological studies. However, research characterising the mechanisms underlying this carcinogenic process in humans are limited, particularly with respect to measures of direct DNA damage. The current review sought to evaluate and summarize the recent literature, published since 2000, regarding the associations of meat consumption and three biomarkers of genotoxicity in humans: DNA strand breaks (measured using the comet assay), DNA adducts, and micronucleus formation. After screening 230 potential articles, 35 were included, and then were classified as experimental or observational in design, the latter of which were further categorized according to their dietary assessment approach. Among the 30 observational studies, 4 of which used two different assays, 3 of 5 comet assay studies, 13 of 20 DNA adduct studies, and 7 of 9 micronucleus studies reported a positive association between meat consumption and DNA damage. Among the 5 experimental studies, 1 of 1 using the comet assay, 3 of 3 measuring DNA adducts and 0 of 1 measuring micronuclei reported significant positive associations with meat consumption. Nevertheless, common limitations among the selected publications included small sample size, and poor methodological reporting of both exposure and outcome measures. Moreover, the vast majority of studies only measured DNA damage in one biological sample using a single assay and we cannot exclude the possibility of publication bias. Ultimately, our review of the literature, published since 2000, revealed a preponderance of studies that support mechanisms of genotoxicity in playing an important role in the meat-cancer association.
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Affiliation(s)
- Laura Pelland-St-Pierre
- Department of Social and Preventive Medicine, École de Santé Publique de l'Université de Montréal (ESPUM), Université de Montréal, Montréal, Québec, Canada; Health Innovation and Evaluation Hub, Université de Montréal Hospital Research Centre (CRCHUM), Montréal, Québec, Canada
| | - Samantha Christine Sernoskie
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Marc-André Verner
- Centre de recherche en santé publique (CReSP), Université de Montréal, Montréal, Québec, Canada; Department of Occupational and Environmental Health, École de Santé Publique de l'Université de Montréal (ESPUM), Université de Montréal, Montréal, Québec, Canada
| | - Vikki Ho
- Department of Social and Preventive Medicine, École de Santé Publique de l'Université de Montréal (ESPUM), Université de Montréal, Montréal, Québec, Canada; Health Innovation and Evaluation Hub, Université de Montréal Hospital Research Centre (CRCHUM), Montréal, Québec, Canada.
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Gahlon HL, Romano LJ, Rueda D. Influence of DNA Lesions on Polymerase-Mediated DNA Replication at Single-Molecule Resolution. Chem Res Toxicol 2017; 30:1972-1983. [PMID: 29020440 DOI: 10.1021/acs.chemrestox.7b00224] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Faithful replication of DNA is a critical aspect in maintaining genome integrity. DNA polymerases are responsible for replicating DNA, and high-fidelity polymerases do this rapidly and at low error rates. Upon exposure to exogenous or endogenous substances, DNA can become damaged and this can alter the speed and fidelity of a DNA polymerase. In this instance, DNA polymerases are confronted with an obstacle that can result in genomic instability during replication, for example, by nucleotide misinsertion or replication fork collapse. It is important to know how DNA polymerases respond to damaged DNA substrates to understand the mechanism of mutagenesis and chemical carcinogenesis. Single-molecule techniques have helped to improve our current understanding of DNA polymerase-mediated DNA replication, as they enable the dissection of mechanistic details that can otherwise be lost in ensemble-averaged experiments. These techniques have also been used to gain a deeper understanding of how single DNA polymerases behave at the site of the damage in a DNA substrate. In this review, we evaluate single-molecule studies that have examined the interaction between DNA polymerases and damaged sites on a DNA template.
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Affiliation(s)
- Hailey L Gahlon
- Molecular Virology, Department of Medicine, Imperial College London , Du Cane Road, London W12 0NN, U.K.,Single Molecule Imaging Group, MRC London Institute of Medical Sciences , Du Cane Road, London W12 0NN, U.K
| | - Louis J Romano
- Department of Chemistry, Wayne State University , Detroit, Michigan 48202, United States
| | - David Rueda
- Molecular Virology, Department of Medicine, Imperial College London , Du Cane Road, London W12 0NN, U.K.,Single Molecule Imaging Group, MRC London Institute of Medical Sciences , Du Cane Road, London W12 0NN, U.K
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Yasuda MT, Sakakibara H, Shimoi K. Estrogen- and stress-induced DNA damage in breast cancer and chemoprevention with dietary flavonoid. Genes Environ 2017; 39:10. [PMID: 28163803 PMCID: PMC5286800 DOI: 10.1186/s41021-016-0071-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 12/08/2016] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is one of the most commonly diagnosed female cancers and a leading cause of cancer-related death in women. Multiple factors are responsible for breast cancer and heritable factors have received much attention. DNA damage in breast cancer is induced by prolonged exposure to estrogens, such as 17β-estradiol, daily social/psychological stressors, and environmental chemicals such as polycyclic aromatic hydrocarbons (PAHs) and heterocyclic amines (HCAs). DNA damage induced by estrogen and stress is an important factor in the pathogenesis and development of breast cancer and is now recognized as a critical provision for chemoprevention of breast cancer. In this review, we summarize the relationships between estrogen- and stress-induced DNA damage with regard to the pathogenesis and development of breast cancer. We also discuss recent investigations into chemoprevention using dietary flavonoids such as quercetin and isoflavones.
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Affiliation(s)
- Michiko T Yasuda
- School of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526 Japan
| | - Hiroyuki Sakakibara
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai-nishi, Miyazaki, 889-2192 Japan
| | - Kayoko Shimoi
- School of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526 Japan
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de Carvalho AM, Carioca AAF, Fisberg RM, Qi L, Marchioni DM. Joint association of fruit, vegetable, and heterocyclic amine intake with DNA damage levels in a general population. Nutrition 2016; 32:260-4. [DOI: 10.1016/j.nut.2015.08.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 07/16/2015] [Accepted: 08/22/2015] [Indexed: 10/23/2022]
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Powell JB, Ghotbaddini M. Cancer-promoting and Inhibiting Effects of Dietary Compounds: Role of the Aryl Hydrocarbon Receptor (AhR). ACTA ACUST UNITED AC 2014; 3. [PMID: 25258701 PMCID: PMC4172379 DOI: 10.4172/2167-0501.1000131] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Polyaromatic hydrocarbons, heterocyclic aromatic amines and dioxin-like compounds are environmental carcinogens shown to initiate cancer in a number of tissue types including prostate and breast. These environmental carcinogens elicit their effects through interacting with the aryl hydrocarbon receptor (AhR), a ligand activated transcription factor. Naturally occurring compounds found in fruits and vegetables shown to have anti-carcinogenic effects also interact with the AhR. This review explores dietary and environmental exposure to chemical carcinogens and beneficial natural compounds whose effects are elicited by the AhR.
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Affiliation(s)
- Joann B Powell
- Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA USA
| | - Maryam Ghotbaddini
- Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA USA
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Chandran U, Zirpoli G, Ciupak G, McCann SE, Gong Z, Pawlish K, Lin Y, Demissie K, Ambrosone CB, Bandera EV. Racial disparities in red meat and poultry intake and breast cancer risk. Cancer Causes Control 2013; 24:2217-29. [PMID: 24091794 DOI: 10.1007/s10552-013-0299-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 09/26/2013] [Indexed: 12/21/2022]
Abstract
PURPOSE Research on the role of red meat and poultry consumption in breast carcinogenesis is inconclusive, but the evidence in African-American (AA) women is lacking. The association between consuming meat and breast cancer risk was examined in the Women's Circle of Health Study involving 803 AA cases, 889 AA controls, 755 Caucasian cases, and 701 Caucasian controls. METHODS Dietary information was collected using a Food Frequency Questionnaire. Odds ratios (OR) and 95 % confidence intervals (CI) were obtained from logistic regression models adjusting for potential covariates. RESULTS Comparing the fourth versus the first quartiles, among Caucasian women, processed meat (OR = 1.48; 95 % CI 1.07-2.04), unprocessed red meat (OR = 1.40; 95 % CI 1.01-1.94), and poultry intakes (OR = 1.42; 95 % CI 1.01-1.99) increased breast cancer risk. Risk associated with poultry intake was more dominant in premenopausal women (OR = 2.33; 95 % CI 1.44-3.77) and for women with ER- tumors (OR = 2.55; 95 % CI 1.29-5.03) in the Caucasian group. Associations in AA women were mostly null except for a significant increased risk trend with processed meat consumption for ER+ tumors (OR = 1.36; 95 % CI 0.94-1.97, p trend = 0.04). CONCLUSIONS Overall, associations between breast cancer risk and consumption of red meat and poultry were of different magnitude in AA and Caucasian women, with further differences noted by menopausal and hormone receptor status in Caucasian women. This is the first study to examine racial differences in meat and breast cancer risk and represents some of the first evidence in AA women.
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Affiliation(s)
- Urmila Chandran
- Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, 195 Little Albany St, Room 5549-10, New Brunswick, NJ, 08903, USA,
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Gibis M, Weiss J. Formation of Heterocyclic Amines in Salami and Ham Pizza Toppings During Baking of Frozen Pizza. J Food Sci 2013; 78:C832-8. [DOI: 10.1111/1750-3841.12121] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Accepted: 03/07/2013] [Indexed: 01/08/2023]
Affiliation(s)
- Monika Gibis
- Dept. of Food Physics and Meat Science, Inst. of Food Science and Biotechnology; Univ. of Hohenheim; Garbenstrasse 21/25; 70599 Stuttgart; Germany
| | - Jochen Weiss
- Dept. of Food Physics and Meat Science, Inst. of Food Science and Biotechnology; Univ. of Hohenheim; Garbenstrasse 21/25; 70599 Stuttgart; Germany
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10
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Pedersen M, Halldorsson TI, Autrup H, Brouwer A, Besselink H, Loft S, Knudsen LE. Maternal diet and dioxin-like activity, bulky DNA adducts and micronuclei in mother-newborns. Mutat Res 2012; 734:12-19. [PMID: 22561210 DOI: 10.1016/j.mrfmmm.2012.04.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 03/29/2012] [Accepted: 04/15/2012] [Indexed: 05/31/2023]
Abstract
Maternal diet can contribute to carcinogenic exposures and also modify effects of environmental exposures on maternal and fetal genetic stability. In this study, associations between maternal diet and the levels of dioxin-like plasma activity, bulky DNA adducts in white blood cells and micronuclei (MN) in lymphocytes from mother to newborns were examined. From 98 pregnant women living in the greater area of Copenhagen, Denmark in 2006-2007, maternal peripheral blood and umbilical cord blood were collected, together with information on health, environmental exposure and lifestyle. Maternal diet was estimated on the basis of maternal food frequency questionnaire (FFQ) completed by the end of pregnancy. Biomarkers were detected in paired blood samples through the dioxin-responsive chemical-activated luciferase expression (CALUX)(®) bioassay, (32)P-postlabelling technique and cytokinesis-block MN assay. Maternal preference for meats with dark surface were significantly associated with higher bulky DNA adducts in both maternal (β 95%CI; 0.46 (0.08, 0.84)) and cord blood (β 95%CI; 0.46 (0.05, 0.86)) before and after adjustment for potential confounders. No other significant associations between the 18 dietary variables and the biomarkers measured in maternal and fetal samples were identified. The present study suggests that maternal intake of meats with dark surface contributes to the bulky DNA adduct levels in maternal and umbilical cord blood. Relationship between food preparation and bulky DNA adducts appear to be captured by a FFQ while potential associations for other biomarkers might be more complex or need larger sample size.
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Affiliation(s)
- Marie Pedersen
- Section of Environmental Health, Department of Public Health, University of Copenhagen, CSS, Oester Farimagsgade, Copenhagen K, Denmark.
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Gu D, Turesky RJ, Tao Y, Langouët SA, Nauwelaërs GC, Yuan JM, Yee D, Yu MC. DNA adducts of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine and 4-aminobiphenyl are infrequently detected in human mammary tissue by liquid chromatography/tandem mass spectrometry. Carcinogenesis 2012; 33:124-30. [PMID: 22072616 PMCID: PMC3276332 DOI: 10.1093/carcin/bgr252] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Revised: 10/21/2011] [Accepted: 10/29/2011] [Indexed: 01/13/2023] Open
Abstract
Some epidemiological investigations have revealed that frequent consumption of well-done cooked meats and tobacco smoking are risk factors for breast cancer in women. 2-Amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) is a heterocyclic aromatic amine that is formed in well-done cooked meat, and 4-aminobiphenyl (4-ABP) is an aromatic amine that arises in tobacco smoke and occurs as a contaminant in the atmosphere. Both compounds are rodent mammary carcinogens, and putative DNA adducts of PhIP and 4-ABP have been frequently detected, by immunohistochemistry (IHC) or (32)P-post-labeling methods, in mammary tissue of USA women. Because of these findings, PhIP and 4-ABP have been implicated as causal agents of human breast cancer. However, the biomarker data are controversial: both IHC and (32)P-post-labeling are non-selective screening methods and fail to provide confirmatory spectral data. Consequently, the identities of the lesions are equivocal. We employed a specific and sensitive liquid chromatography/mass spectrometry (MS) method, to screen tumor-adjacent normal mammary tissue for DNA adducts of PhIP and 4-ABP. Only 1 of 70 biopsy samples obtained from Minneapolis, Minnesota breast cancer patients contained a PhIP-DNA adduct. The level was three adducts per 10(9) nucleotides, a level that is 100-fold lower than the mean level of PhIP adducts reported by IHC or (32)P-post-labeling methods. The occurrence of 4-ABP-DNA adducts was nil in those same breast tissues. Our findings, derived from a specific mass spectrometry method, signify that PhIP and 4-ABP are not major DNA-damaging agents in mammary tissue of USA women and raise questions about the roles of these chemicals in breast cancer.
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Affiliation(s)
| | - Robert J. Turesky
- To whom correspondence should be addressed. Tel: +1 518 474 4151; Fax: +1 518 473 2095;
| | | | - Sophie A. Langouët
- Institut de Recherche en Santé Environnement Travail, Inserm U1085, Université de Rennes 1, IFR140, 2 Avenue du Pr L Bernard, 35043 Rennes, France
| | - Gwendoline C. Nauwelaërs
- Institut de Recherche en Santé Environnement Travail, Inserm U1085, Université de Rennes 1, IFR140, 2 Avenue du Pr L Bernard, 35043 Rennes, France
| | - Jian-Min Yuan
- Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute, and Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA 15232, USA
| | - Douglas Yee
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
| | - Mimi C. Yu
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
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Fu Z, Deming SL, Fair AM, Shrubsole MJ, Wujcik DM, Shu XO, Kelley M, Zheng W. Well-done meat intake and meat-derived mutagen exposures in relation to breast cancer risk: the Nashville Breast Health Study. Breast Cancer Res Treat 2011; 129:919-28. [PMID: 21537933 DOI: 10.1007/s10549-011-1538-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Accepted: 04/19/2011] [Indexed: 01/07/2023]
Abstract
Previous studies of the association of meat intake and meat-derived mutagen exposure with breast cancer risk have produced inconsistent results. We evaluated this association in a population-based case-control study of incident breast cancer conducted in Nashville, Tennessee, United States, including 2,386 breast cancer cases and 1,703 healthy women controls. Telephone interviews were conducted to obtain information related to meat intake including amount, cooking methods, and doneness levels, as well as other known or hypothesized risk factors for breast cancer. Unconditional logistic regression was used to derive odds ratios (ORs) after adjusting for potential confounders. High intake of red meat was associated with a significantly elevated risk of breast cancer (P-trend < 0.001). The association was particularly strong for high intake of well-done red meat (P-trend < 0.001), with an adjusted OR of 1.5 (95% CI = 1.3-1.9) for the highest versus the lowest quartile. Associations between red meat and breast cancer risk were slightly stronger for postmenopausal women than for premenopausal women. Meat-derived mutagens such as 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline and 2-amino-3,4,8-trimethylimidazo[4,5-f]quinoxaline, were significantly associated with increased breast cancer risk among postmenopausal women only (P-trend = 0.002 and 0.003, respectively). The results from this study provide strong support for the hypotheses that high red meat intake and meat-derived mutagen exposure may be associated with an increase in breast cancer risk.
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Affiliation(s)
- Zhenming Fu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 2525 West End Avenue, 8th floor, Suite 800, Nashville, TN 37203-1738, USA
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Himmelstein MW, Boogaard PJ, Cadet J, Farmer PB, Kim JH, Martin EA, Persaud R, Shuker DEG. Creating context for the use of DNA adduct data in cancer risk assessment: II. Overview of methods of identification and quantitation of DNA damage. Crit Rev Toxicol 2010; 39:679-94. [PMID: 19743945 DOI: 10.1080/10408440903164163] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The formation of deoxyribonucleic acid (DNA) adducts can have important and adverse consequences for cellular and whole organism function. Available methods for identification of DNA damage and quantification of adducts are reviewed. Analyses can be performed on various samples including tissues, isolated cells, and intact or hydrolyzed (digested) DNA from a variety of biological samples of interest for monitoring in humans. Sensitivity and specificity are considered key factors for selecting the type of method for assessing DNA perturbation. The amount of DNA needed for analysis is dependent upon the method and ranges widely, from <1 microg to 3 mg. The methods discussed include the Comet assay, the ligation-mediated polymerase reaction, histochemical and immunologic methods, radiolabeled ((14)C- and (3)H-) binding, (32)P-postlabeling, and methods dependent on gas chromatography (GC) or high-performance liquid chromatography (HPLC) with detection by electron capture, electrochemical detection, single or tandem mass spectrometry, or accelerator mass spectrometry. Sensitivity is ranked, and ranges from approximately 1 adduct in 10(4) to 10(12) nucleotides. A brief overview of oxidatively generated DNA damage is also presented. Assay limitations are discussed along with issues that may have impact on the reliability of results, such as sample collection, processing, and storage. Although certain methodologies are mature, improving technology will continue to enhance the specificity and sensitivity of adduct analysis. Because limited guidance and recommendations exist for adduct analysis, this effort supports the HESI Committee goal of developing a framework for use of DNA adduct data in risk assessment.
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Affiliation(s)
- Matthew W Himmelstein
- DuPont Haskell Global Centers for Health and Environmental Sciences, Newark, Delaware, USA
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