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Thabet RH, Alessa REM, Al-Smadi ZKK, Alshatnawi BSG, Amayreh BMI, Al-Dwaaghreh RBA, Salah SKA. Folic acid: friend or foe in cancer therapy. J Int Med Res 2024; 52:3000605231223064. [PMID: 38229460 PMCID: PMC10935767 DOI: 10.1177/03000605231223064] [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: 10/14/2023] [Accepted: 12/11/2023] [Indexed: 01/18/2024] Open
Abstract
Folic acid plays a crucial role in diverse biological processes, notably cell maturation and proliferation. Here, we performed a literature review using articles listed in electronic databases, such as PubMed, Scopus, MEDLINE, and Google Scholar. In this review article, we describe contradictory data regarding the role of folic acid in cancer development and progression. While some studies have confirmed its beneficial effects in diminishing the risk of various cancers, others have reported a potential carcinogenic effect. The current narrative review elucidates these conflicting data by highlighting the possible molecular mechanisms explaining each point of view. Further multicenter molecular and genetic studies, in addition to human randomized clinical trials, are necessary to provide a more comprehensive understanding of the relationship between folic acid and cancer.
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Affiliation(s)
- Romany H. Thabet
- Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt
- Department of Basic Medical Sciences, Faculty of Medicine, Aqaba Medical Sciences University, Aqaba, Jordan
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2
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Fiore M, Minni A, Cavalcanti L, Raponi G, Puggioni G, Mattia A, Gariglio S, Colizza A, Meliante PG, Zoccali F, Tarani L, Barbato C, Lucarelli M, Ceci FM, Francati S, Ferraguti G, Ceccanti M, Petrella C. The Impact of Alcohol Consumption and Oral Microbiota on Upper Aerodigestive Tract Carcinomas: A Pilot Study. Antioxidants (Basel) 2023; 12:1233. [PMID: 37371963 DOI: 10.3390/antiox12061233] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 05/29/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Alcohol consumption is associated with oxidative stress and an increased risk of carcinoma of the upper aero-digestive tract (UADT). Recently, it has been found that some microorganisms in the human oral cavity may locally metabolize ethanol, forming acetaldehyde, a carcinogenic metabolite of alcohol. In a cohort of patients first visited for UADT cancers, we estimated their alcohol consumption by measuring Ethyl Glucuronide/EtG (a long-lasting metabolite of ethanol) in the hair and carbohydrate-deficient transferrin/CDT (short-term index of alcohol intake) in the serum. Moreover, we analyzed, by culture-based methods, the presence of Neisseria subflava, Streptococcus mitis, Candida albicans, and glabrata (microorganisms generating acetaldehyde) in the oral cavity. According to the EtG values, we correlated drinking alcohol with endogenous oxidative stress and the investigated microorganism's presence. We found that 55% of heavy drinkers presented microorganisms generating acetaldehyde locally. Moreover, we found that the presence of oral acetaldehyde-producing bacteria correlates with increased oxidative stress compared to patients without such bacteria. As for the study of alcohol dehydrogenase gene polymorphisms (the enzyme that transforms alcohol to acetaldehyde), we found that only the "CGTCGTCCC" haplotype was more frequent in the general population than in carcinoma patients. This pilot study suggests the importance of estimating alcohol consumption (EtG), the presence of bacteria producing acetaldehyde, and oxidative stress as risk factors for the onset of oral carcinomas.
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Affiliation(s)
- Marco Fiore
- Institute of Biochemistry and Cell Biology (IBBC-CNR), Sapienza University Hospital Policlinico Umberto I, 00161 Roma, Italy
| | - Antonio Minni
- Department of Sensory Organs, Sapienza University of Rome, 00161 Roma, Italy
- Division of Otolaryngology-Head and Neck Surgery, San Camillo de Lellis Hospital, ASL Rieti-Sapienza University, Viale Kennedy, 02100 Rieti, Italy
| | - Luca Cavalcanti
- Department of Sensory Organs, Sapienza University of Rome, 00161 Roma, Italy
| | - Giammarco Raponi
- Laboratory for Clinical Microbiology, Sapienza University Hospital Policlinico Umberto I, 00161 Roma, Italy
| | - Gianluca Puggioni
- Laboratory for Clinical Microbiology, Sapienza University Hospital Policlinico Umberto I, 00161 Roma, Italy
| | - Alessandro Mattia
- Dipartimento della Pubblica Sicurezza, Direzione Centrale di Sanità, Centro di Ricerche e Laboratorio di Tossicologia Forense, Ministero dell'Interno, 00185 Roma, Italy
| | - Sara Gariglio
- DIFAR-Department of Pharmacy, Università di Genova, Viale Cembrano 4, 16148 Genova, Italy
| | - Andrea Colizza
- Department of Sensory Organs, Sapienza University of Rome, 00161 Roma, Italy
| | | | - Federica Zoccali
- Department of Sensory Organs, Sapienza University of Rome, 00161 Roma, Italy
| | - Luigi Tarani
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, 00161 Roma, Italy
| | - Christian Barbato
- Institute of Biochemistry and Cell Biology (IBBC-CNR), Sapienza University Hospital Policlinico Umberto I, 00161 Roma, Italy
| | - Marco Lucarelli
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Roma, Italy
- Pasteur Institute Cenci Bolognetti Foundation, Sapienza University of Rome, 00161 Roma, Italy
| | - Flavio Maria Ceci
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Roma, Italy
| | - Silvia Francati
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Roma, Italy
| | - Giampiero Ferraguti
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Roma, Italy
| | - Mauro Ceccanti
- ASL Roma1, SITAC, Società Italiana per il Trattamento dell'Alcolismo e le sue Complicanze, 00100 Roma, Italy
| | - Carla Petrella
- Institute of Biochemistry and Cell Biology (IBBC-CNR), Sapienza University Hospital Policlinico Umberto I, 00161 Roma, Italy
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3
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Tsushima N, Kano S, Suzuki T, Hamada S, Homma A. Pretreatment elevated mean corpuscular volume as an indicator for high risk esophageal second primary cancer in patients with head and neck cancer. Auris Nasus Larynx 2023; 50:423-429. [PMID: 36229311 DOI: 10.1016/j.anl.2022.09.009] [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: 06/26/2022] [Revised: 08/23/2022] [Accepted: 09/26/2022] [Indexed: 04/03/2023]
Abstract
OBJECTIVE Esophageal cancer is the most common second primary cancer (SPC) in patients with head and neck cancer (HNC). Esophageal SPC has a negative impact on survival. Elevated mean corpuscular volume (MCV) is an accepted predictor of esophageal cancer risk. The aim of this study was to elucidate the usefulness of elevated MCV as an indicator of a high risk for esophageal SPC. METHODS We retrospectively reviewed the medical records of patients with oropharyngeal, hypopharyngeal, and laryngeal squamous cell carcinoma who underwent chemoradiotherapy between 2003 and 2012. We excluded patients younger than 20 years or who had received treatment for esophageal cancer and who had a histologically unproven lesion. Patients were divided into two groups according to their MCV. The cut-off for MCV was defined by receiver operating characteristics curve analysis. The primary endpoint was the cumulative incidence of esophageal SPC. RESULTS A total of 295 patients were included. The median follow-up period for surviving patients was 7.4 years and the optimal cut-off point was 99.0 fL. One hundred ninety-five patients (66%) had an MCV < 99.0 fL and 100 (34%) had an MCV ≥ 99.0 fL. The 5-year cumulative incidence in patients with an MCV < 99.0 fL and ≥ 99.0 fL was 8.7% and 27%, respectively. In the multivariate analysis, an MCV ≥ 99.0 fL (HR=2.2; 95%CI, 1.1-4.2) was an independent risk factor. CONCLUSION MCV ≥ 99.0 fL was found to be a risk factor for esophageal SPC. We, therefore, recommend that patients with an MCV ≥ 99.0 fL should undergo intensive monitoring.
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Affiliation(s)
- Nayuta Tsushima
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan.
| | - Satoshi Kano
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takayoshi Suzuki
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Seijiro Hamada
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Akihiro Homma
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
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4
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Pérez-Reytor D, Karahanian E. Alcohol use disorder, neuroinflammation, and intake of dietary fibers: a new approach for treatment. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2022:1-7. [DOI: 10.1080/00952990.2022.2114005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Diliana Pérez-Reytor
- Institute of Biomedical Sciences, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago, Chile
| | - Eduardo Karahanian
- Institute of Biomedical Sciences, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago, Chile
- Research Center for the Development of Novel Therapeutic Alternatives for Alcohol Use Disorders, Santiago, Chile
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5
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Can gene therapy be used to prevent cancer? Gene therapy for aldehyde dehydrogenase 2 deficiency. Cancer Gene Ther 2022; 29:889-896. [PMID: 34799722 PMCID: PMC9117562 DOI: 10.1038/s41417-021-00399-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/24/2021] [Accepted: 10/08/2021] [Indexed: 11/08/2022]
Abstract
Approximately 8% of the world population and 35-45% of East Asians are carriers of the hereditary disorder aldehyde dehydrogenase 2 (ALDH2) deficiency. ALDH2 plays a central role in the liver to metabolize ethanol. With the common E487K variant, there is a deficiency of ALDH2 function; when ethanol is consumed, there is a systemic accumulation of acetaldehyde, an intermediate product in ethanol metabolism. In ALDH2-deficient individuals, ethanol consumption acutely causes the "Alcohol Flushing Syndrome" with facial flushing, tachycardia, nausea, and headaches. With chronic alcohol consumption, ALDH2 deficiency is associated with a variety of disorders, including a remarkably high risk for aerodigestive tract cancers. Acetaldehyde is a known carcinogen. The epidemiologic data relating to the association of ALDH2 deficiency and cancer risk are striking: ALDH2 homozygotes who are moderate-to-heavy consumers of ethanol have a 7-12-fold increased risk for esophageal cancer, making ALDH2 deficiency the most common hereditary disorder associated with an increased cancer risk. In this review, we summarize the genetics and biochemistry of ALDH2, the epidemiology of cancer risk associated with ALDH2 deficiency, the metabolic consequences of ethanol consumption associated with ALDH2 deficiency, and gene therapy strategies to correct ALDH2 deficiency and its associated cancer risk. With the goal of reducing the risk of aerodigestive tract cancers, in the context that ALDH2 is a hereditary disorder and ALDH2 functions primarily in the liver, ALDH2 deficiency is an ideal target for the application of adeno-associated virus-mediated liver-directed gene therapy to prevent cancer.
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6
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Wang X, Wang Y, Liu Y, Cong P, Xu J, Xue C. Hepatoprotective effects of sea cucumber ether-phospholipids against alcohol-induced lipid metabolic dysregulation and oxidative stress in mice. Food Funct 2022; 13:2791-2804. [PMID: 35174375 DOI: 10.1039/d1fo03833h] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Sea cucumber is widely consumed as food and folk medicine in Asia, and its phospholipids are rich sources of dietary eicosapentaenoic acid enriched ether-phospholipids (ether-PLs). Emerging evidence suggests that ether-PLs are associated with neurodegenerative disease and steatohepatitis. However, the function and mechanism of ether-PLs in alcoholic liver disease (ALD) are not well understood. To this end, the present study sought to investigate the hepatoprotective effects of sea cucumber ether-PLs, including plasmenyl phosphatidylethanolamine (PlsEtn) and plasmanyl phosphatidylcholine (PlsCho), and their underlying mechanisms. Our results showed that compared with EtOH-induced mice, ether-PL treated mice showed improved liver histology, decreased serum ALT and AST levels, and reduced alcohol metabolic enzyme (ALDH2 and ADH1) expressions. Mechanistic studies showed that ether-PLs attenuated "first-hit" hepatic steatosis and lipid accumulation evoked by alcohol administration. Moreover, PlsEtn more effectively restored endogenous plasmalogen levels than PlsCho, thereby enhancing hepatic antioxidation against "second-hit" reactive oxygen species (ROS) due to the damaged mitochondria and abnormal ethanol metabolism. Taken together, sea cucumber ether-PLs show great potential to become a natural functional food against chronic alcohol-induced hepatic steatosis and lipid metabolic dysregulation.
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Affiliation(s)
- Xiaoxu Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China.
| | - Yuliu Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China.
| | - Yanjun Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China. .,School of Food Science & Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Peixu Cong
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China.
| | - Jie Xu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China.
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China. .,National Laboratory for Marine Science and Technology, Laboratory of Marine Drugs and Biological Products, Qingdao, 266237, Shandong, China
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Johnson CH, Golla JP, Dioletis E, Singh S, Ishii M, Charkoftaki G, Thompson DC, Vasiliou V. Molecular Mechanisms of Alcohol-Induced Colorectal Carcinogenesis. Cancers (Basel) 2021; 13:4404. [PMID: 34503214 PMCID: PMC8431530 DOI: 10.3390/cancers13174404] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 12/30/2022] Open
Abstract
The etiology of colorectal cancer (CRC) is complex. Approximately, 10% of individuals with CRC have predisposing germline mutations that lead to familial cancer syndromes, whereas most CRC patients have sporadic cancer resulting from a combination of environmental and genetic risk factors. It has become increasingly clear that chronic alcohol consumption is associated with the development of sporadic CRC; however, the exact mechanisms by which alcohol contributes to colorectal carcinogenesis are largely unknown. Several proposed mechanisms from studies in CRC models suggest that alcohol metabolites and/or enzymes associated with alcohol metabolism alter cellular redox balance, cause DNA damage, and epigenetic dysregulation. In addition, alcohol metabolites can cause a dysbiotic colorectal microbiome and intestinal permeability, resulting in bacterial translocation, inflammation, and immunosuppression. All of these effects can increase the risk of developing CRC. This review aims to outline some of the most significant and recent findings on the mechanisms of alcohol in colorectal carcinogenesis. We examine the effect of alcohol on the generation of reactive oxygen species, the development of genotoxic stress, modulation of one-carbon metabolism, disruption of the microbiome, and immunosuppression.
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Affiliation(s)
- Caroline H. Johnson
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT 06520, USA; (C.H.J.); (J.P.G.); (E.D.); (S.S.); (M.I.); (G.C.); (D.C.T.)
| | - Jaya Prakash Golla
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT 06520, USA; (C.H.J.); (J.P.G.); (E.D.); (S.S.); (M.I.); (G.C.); (D.C.T.)
| | - Evangelos Dioletis
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT 06520, USA; (C.H.J.); (J.P.G.); (E.D.); (S.S.); (M.I.); (G.C.); (D.C.T.)
| | - Surendra Singh
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT 06520, USA; (C.H.J.); (J.P.G.); (E.D.); (S.S.); (M.I.); (G.C.); (D.C.T.)
| | - Momoko Ishii
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT 06520, USA; (C.H.J.); (J.P.G.); (E.D.); (S.S.); (M.I.); (G.C.); (D.C.T.)
| | - Georgia Charkoftaki
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT 06520, USA; (C.H.J.); (J.P.G.); (E.D.); (S.S.); (M.I.); (G.C.); (D.C.T.)
| | - David C. Thompson
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT 06520, USA; (C.H.J.); (J.P.G.); (E.D.); (S.S.); (M.I.); (G.C.); (D.C.T.)
- Department of Clinical Pharmacy, School of Pharmacy, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Vasilis Vasiliou
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT 06520, USA; (C.H.J.); (J.P.G.); (E.D.); (S.S.); (M.I.); (G.C.); (D.C.T.)
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8
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Vandemoortele A, Heynderickx PM, Leloup L, De Meulenaer B. Kinetic modeling of malondialdehyde reactivity in oil to simulate actual malondialdehyde formation upon lipid oxidation. Food Res Int 2021; 140:110063. [PMID: 33648286 DOI: 10.1016/j.foodres.2020.110063] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 11/25/2022]
Abstract
The reactivity of malondialdehyde in saturated glycerol triheptanoate oil was studied over a wide temperature range (298.15-453.15 K). With respect to the non-ideal character of a lipid medium, a kinetic model was proposed that described the experimental malondialdehyde data by a reversible hydrolytic cleavage and an irreversible aldol self-condensation reaction. Significant parameter estimates were obtained by using a global one-step non-linear regression procedure. The aldol self-condensation of malondialdehyde showed to be the main degradation route of malondialdehyde in oils. Simulation of the malondialdehyde formation during lipid oxidation of sunflower oil demonstrated that, depending on the heating time, the experimentally obtained malondialdehyde concentrations can substantially underestimate the ongoing lipid oxidation.
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Affiliation(s)
- Angelique Vandemoortele
- NutriFOODchem Unit, Department of Food Technology, Safety and Health (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Philippe M Heynderickx
- Center for Environmental and Energy Research (CEER), Engineering of Materials via Catalysis and Characterization, Ghent University Global Campus, 119-5 Songdomunhwa-Ro, Yeonsu-Gu, Incheon 406-840 South Korea; Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Ludivine Leloup
- NutriFOODchem Unit, Department of Food Technology, Safety and Health (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Bruno De Meulenaer
- NutriFOODchem Unit, Department of Food Technology, Safety and Health (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium.
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9
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Baiken Y, Kanayeva D, Taipakova S, Groisman R, Ishchenko AA, Begimbetova D, Matkarimov B, Saparbaev M. Role of Base Excision Repair Pathway in the Processing of Complex DNA Damage Generated by Oxidative Stress and Anticancer Drugs. Front Cell Dev Biol 2021; 8:617884. [PMID: 33553154 PMCID: PMC7862338 DOI: 10.3389/fcell.2020.617884] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/17/2020] [Indexed: 01/22/2023] Open
Abstract
Chemical alterations in DNA induced by genotoxic factors can have a complex nature such as bulky DNA adducts, interstrand DNA cross-links (ICLs), and clustered DNA lesions (including double-strand breaks, DSB). Complex DNA damage (CDD) has a complex character/structure as compared to singular lesions like randomly distributed abasic sites, deaminated, alkylated, and oxidized DNA bases. CDD is thought to be critical since they are more challenging to repair than singular lesions. Although CDD naturally constitutes a relatively minor fraction of the overall DNA damage induced by free radicals, DNA cross-linking agents, and ionizing radiation, if left unrepaired, these lesions cause a number of serious consequences, such as gross chromosomal rearrangements and genome instability. If not tightly controlled, the repair of ICLs and clustered bi-stranded oxidized bases via DNA excision repair will either inhibit initial steps of repair or produce persistent chromosomal breaks and consequently be lethal for the cells. Biochemical and genetic evidences indicate that the removal of CDD requires concurrent involvement of a number of distinct DNA repair pathways including poly(ADP-ribose) polymerase (PARP)-mediated DNA strand break repair, base excision repair (BER), nucleotide incision repair (NIR), global genome and transcription coupled nucleotide excision repair (GG-NER and TC-NER, respectively), mismatch repair (MMR), homologous recombination (HR), non-homologous end joining (NHEJ), and translesion DNA synthesis (TLS) pathways. In this review, we describe the role of DNA glycosylase-mediated BER pathway in the removal of complex DNA lesions.
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Affiliation(s)
- Yeldar Baiken
- School of Sciences and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan.,National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan.,School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Damira Kanayeva
- School of Sciences and Humanities, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Sabira Taipakova
- Department of Molecular Biology and Genetics, Faculty of Biology and Biotechnology, al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Regina Groisman
- Groupe ≪Mechanisms of DNA Repair and Carcinogenesis≫, Equipe Labellisée LIGUE 2016, CNRS UMR9019, Université Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
| | - Alexander A Ishchenko
- Groupe ≪Mechanisms of DNA Repair and Carcinogenesis≫, Equipe Labellisée LIGUE 2016, CNRS UMR9019, Université Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
| | - Dinara Begimbetova
- National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Bakhyt Matkarimov
- National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Murat Saparbaev
- Department of Molecular Biology and Genetics, Faculty of Biology and Biotechnology, al-Farabi Kazakh National University, Almaty, Kazakhstan.,Groupe ≪Mechanisms of DNA Repair and Carcinogenesis≫, Equipe Labellisée LIGUE 2016, CNRS UMR9019, Université Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
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Oxidative Stress and Neuroinflammation as a Pivot in Drug Abuse. A Focus on the Therapeutic Potential of Antioxidant and Anti-Inflammatory Agents and Biomolecules. Antioxidants (Basel) 2020; 9:antiox9090830. [PMID: 32899889 PMCID: PMC7555323 DOI: 10.3390/antiox9090830] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/01/2020] [Accepted: 09/03/2020] [Indexed: 12/11/2022] Open
Abstract
Drug abuse is a major global health and economic problem. However, there are no pharmacological treatments to effectively reduce the compulsive use of most drugs of abuse. Despite exerting different mechanisms of action, all drugs of abuse promote the activation of the brain reward system, with lasting neurobiological consequences that potentiate subsequent consumption. Recent evidence shows that the brain displays marked oxidative stress and neuroinflammation following chronic drug consumption. Brain oxidative stress and neuroinflammation disrupt glutamate homeostasis by impairing synaptic and extra-synaptic glutamate transport, reducing GLT-1, and system Xc− activities respectively, which increases glutamatergic neurotransmission. This effect consolidates the relapse-promoting effect of drug-related cues, thus sustaining drug craving and subsequent drug consumption. Recently, promising results as experimental treatments to reduce drug consumption and relapse have been shown by (i) antioxidant and anti-inflammatory synthetic molecules whose effects reach the brain; (ii) natural biomolecules secreted by mesenchymal stem cells that excel in antioxidant and anti-inflammatory properties, delivered via non-invasive intranasal administration to animal models of drug abuse and (iii) potent anti-inflammatory microRNAs and anti-miRNAs which target the microglia and reduce neuroinflammation and drug craving. In this review, we address the neurobiological consequences of brain oxidative stress and neuroinflammation that follow the chronic consumption of most drugs of abuse, and the current and potential therapeutic effects of antioxidants and anti-inflammatory agents and biomolecules to reduce these drug-induced alterations and to prevent relapse.
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11
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Matsumura Y, Li N, Alwaseem H, Pagovich OE, Crystal RG, Greenblatt MB, Stiles KM. Systemic Adeno-Associated Virus-Mediated Gene Therapy Prevents the Multiorgan Disorders Associated with Aldehyde Dehydrogenase 2 Deficiency and Chronic Ethanol Ingestion. Hum Gene Ther 2020; 31:163-182. [PMID: 31801381 DOI: 10.1089/hum.2019.268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Aldehyde dehydrogenase type 2 (ALDH2), a key enzyme in ethanol metabolism, processes toxic acetaldehyde to nontoxic acetate. ALDH2 deficiency affects 8% of the world population and 35-45% of East Asians. The ALDH2*2 allele common genetic variant has a glutamic acid-to-lysine substitution at position 487 (E487K) that reduces the oxidizing ability of the enzyme resulting in systemic accumulation of acetaldehyde with ethanol ingestion. With chronic ethanol ingestion, mutations in ALDH2 are associated with a variety of hematological, neurological, and dermatological abnormalities, and an increased risk for esophageal cancer and osteoporosis. Based on our prior studies demonstrating that a one-time administration of an adeno-associated virus (AAV) serotype rh.10 gene transfer vector expressing the human ALDH2 cDNA (AAVrh.10hALDH2) prevents the acute effects of ethanol administration (the "Asian flush syndrome"), we hypothesized that AAVrh.10hALDH2 would also prevent the chronic disorders associated with ALDH2 deficiency and chronic ethanol ingestion. To assess this hypothesis, AAVrh.10hALDH2 (1011 genome copies) was administered intravenously to two models of ALDH2 deficiency, Aldh2 knockout homozygous (Aldh2-/-) and knockin homozygous (Aldh2E487K+/+) mice (n = 10 per group). Four weeks after vector administration, mice were given drinking water with 10-15% ethanol for 12 weeks. Strikingly, compared with nonethanol drinking littermates, AAVrh.10hALDH2 administration prevented chronic ethanol-induced serum acetaldehyde accumulation and elevated liver malondialdehyde levels, loss of body weight, reduced hemoglobin levels, reduced performance in locomotor activity tests, accumulation of esophageal DNA damage and DNA adducts, and development of osteopenia. AAVrh.10hALDH2 should be considered as a preventative therapy for the increased risk of chronic disorders associated with ALDH2 deficiency and chronic alcohol exposure.
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Affiliation(s)
- Yuki Matsumura
- Department of Genetic Medicine, Weill Cornell Medical College, New York, New York
| | - Na Li
- Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York
| | - Hanan Alwaseem
- Proteomics Resource Center, The Rockefeller University, New York, New York
| | - Odelya E Pagovich
- Department of Genetic Medicine, Weill Cornell Medical College, New York, New York
| | - Ronald G Crystal
- Department of Genetic Medicine, Weill Cornell Medical College, New York, New York
| | - Matthew B Greenblatt
- Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York
- Research Division, Hospital for Special Surgery, New York, New York
| | - Katie M Stiles
- Department of Genetic Medicine, Weill Cornell Medical College, New York, New York
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12
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De Logu F, Li Puma S, Landini L, Portelli F, Innocenti A, de Araujo DSM, Janal MN, Patacchini R, Bunnett NW, Geppetti P, Nassini R. Schwann cells expressing nociceptive channel TRPA1 orchestrate ethanol-evoked neuropathic pain in mice. J Clin Invest 2019; 129:5424-5441. [PMID: 31487269 PMCID: PMC6877331 DOI: 10.1172/jci128022] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 08/29/2019] [Indexed: 12/15/2022] Open
Abstract
Excessive alcohol consumption is associated with spontaneous burning pain, hyperalgesia, and allodynia. Although acetaldehyde has been implicated in the painful alcoholic neuropathy, the mechanism by which the ethanol metabolite causes pain symptoms is unknown. Acute ethanol ingestion caused delayed mechanical allodynia in mice. Inhibition of alcohol dehydrogenase (ADH) or deletion of transient receptor potential ankyrin 1 (TRPA1), a sensor for oxidative and carbonyl stress, prevented allodynia. Acetaldehyde generated by ADH in both liver and Schwann cells surrounding nociceptors was required for TRPA1-induced mechanical allodynia. Plp1-Cre Trpa1fl/fl mice with a tamoxifen-inducible specific deletion of TRPA1 in Schwann cells revealed that channel activation by acetaldehyde in these cells initiates a NADPH oxidase-1-dependent (NOX1-dependent) production of hydrogen peroxide (H2O2) and 4-hydroxynonenal (4-HNE), which sustains allodynia by paracrine targeting of nociceptor TRPA1. Chronic ethanol ingestion caused prolonged mechanical allodynia and loss of intraepidermal small nerve fibers in WT mice. While Trpa1-/- or Plp1-Cre Trpa1fl/fl mice did not develop mechanical allodynia, they did not show any protection from the small-fiber neuropathy. Human Schwann cells express ADH/TRPA1/NOX1 and recapitulate the proalgesic functions of mouse Schwann cells. TRPA1 antagonists might attenuate some symptoms of alcohol-related pain.
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Affiliation(s)
- Francesco De Logu
- Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Florence, Italy
| | - Simone Li Puma
- Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Florence, Italy
| | - Lorenzo Landini
- Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Florence, Italy
| | - Francesca Portelli
- Histopathology and Molecular Diagnostics, Department of Health Sciences, University of Florence, Florence, Italy
| | - Alessandro Innocenti
- Plastic and Reconstructive Microsurgery, Careggi University Hospital, Florence, Italy
| | - Daniel Souza Monteiro de Araujo
- Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Florence, Italy
- Department of Neurobiology and Program of Neurosciences, Institute of Biology, Fluminense Federal University, Niterói, Brazil
| | - Malvin N. Janal
- Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, New York, USA
| | - Riccardo Patacchini
- Department of Corporate Drug Development, Chiesi Farmaceutici SpA, Parma, Italy
| | - Nigel W. Bunnett
- Department of Surgery and
- Department of Pharmacology, Columbia University in the City of New York, New York, New York, USA
| | - Pierangelo Geppetti
- Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Florence, Italy
| | - Romina Nassini
- Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Florence, Italy
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13
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Chasapis CT, Makridakis M, Damdimopoulos AE, Zoidakis J, Lygirou V, Mavroidis M, Vlahou A, Miranda-Vizuete A, Spyrou G, Vlamis-Gardikas A. Implications of the mitochondrial interactome of mammalian thioredoxin 2 for normal cellular function and disease. Free Radic Biol Med 2019; 137:59-73. [PMID: 31018154 DOI: 10.1016/j.freeradbiomed.2019.04.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/15/2019] [Indexed: 12/23/2022]
Abstract
Multiple thioredoxin isoforms exist in all living cells. To explore the possible functions of mammalian mitochondrial thioredoxin 2 (Trx2), an interactome of mouse Trx2 was initially created using (i) a monothiol mouse Trx2 species for capturing protein partners from different organs and (ii) yeast two hybrid screens on human liver and rat brain cDNA libraries. The resulting interactome consisted of 195 proteins (Trx2 included) plus the mitochondrial 16S RNA. 48 of these proteins were classified as mitochondrial (MitoCarta2.0 human inventory). In a second step, the mouse interactome was combined with the current four-membered mitochondrial sub-network of human Trx2 (BioGRID) to give a 53-membered human Trx2 mitochondrial interactome (52 interactor proteins plus the mitochondrial 16S RNA). Although thioredoxins are thiol-employing disulfide oxidoreductases, approximately half of the detected interactions were not due to covalent disulfide bonds. This finding reinstates the extended role of thioredoxins as moderators of protein function by specific non-covalent, protein-protein interactions. Analysis of the mitochondrial interactome suggested that human Trx2 was involved potentially in mitochondrial integrity, formation of iron sulfur clusters, detoxification of aldehydes, mitoribosome assembly and protein synthesis, protein folding, ADP ribosylation, amino acid and lipid metabolism, glycolysis, the TCA cycle and the electron transport chain. The oxidoreductase functions of Trx2 were verified by its detected interactions with mitochondrial peroxiredoxins and methionine sulfoxide reductase. Parkinson's disease, triosephosphate isomerase deficiency, combined oxidative phosphorylation deficiency, and lactate dehydrogenase b deficiency are some of the diseases where the proposed mitochondrial network of Trx2 may be implicated.
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Affiliation(s)
- Christos T Chasapis
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology, Hellas (FORTH), Platani 26504, Greece
| | | | - Anastassios E Damdimopoulos
- Department of Biosciences and Nutrition, Center for Innovative Medicine (CIMED), Karolinska Institutet, Huddinge, Sweden
| | - Jerome Zoidakis
- Biomedical Research Foundation, Academy of Athens (BRFAA), Athens, Greece
| | - Vasiliki Lygirou
- Biomedical Research Foundation, Academy of Athens (BRFAA), Athens, Greece
| | - Manolis Mavroidis
- Biomedical Research Foundation, Academy of Athens (BRFAA), Athens, Greece
| | - Antonia Vlahou
- Biomedical Research Foundation, Academy of Athens (BRFAA), Athens, Greece
| | - Antonio Miranda-Vizuete
- Redox Homeostasis Group, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, 41013 Sevilla, Spain
| | - Giannis Spyrou
- Department of Clinical and Experimental Medicine, Division of Clinical Chemistry, Linköping University, S-581 85 Linköping, Sweden
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14
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J CP, D TK, P S, R S, W CEJ, C GPD, Zayed H. An integrative bioinformatics pipeline to demonstrate the alteration of the interaction between the ALDH2*2 allele with NAD + and Disulfiram. J Cell Biochem 2019; 120:17030-17041. [PMID: 31104322 DOI: 10.1002/jcb.28964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 03/07/2019] [Accepted: 03/15/2019] [Indexed: 11/07/2022]
Abstract
Alcohol use disorder (AUD) is a multifactorial psychiatric behavior disorder. Disulfiram is the first approved drug by the Food and Drug Administration for alcohol-dependent patients, which targets the ALDH2 enzyme. Several genes are known to be involved in alcohol metabolism; mutations in any of these genes are known to be associated with AUD. The E504K mutation in the ALDH2 of the precursor protein or the E487K of the mature protein (E504K/E487K; ALDH2*2 allele) is carried by approximately 8% of the world population. In this study, we aimed to test the known inactive allele ALDH2*2, to validate the use of our extensive computational pipeline (in silico tools, molecular modeling, and molecular docking) for testing the interaction between the ALDH2*2 allele, NAD+, and Disulfiram. In silico predictions showed that the E504K variant of ALDH2 to be pathogenic and destabilizing with the maximum number of prediction in silico tools. Consequently, we studied the effect of this mutation mainly on the interaction between NAD+ -E504K and Disulfiram-E504K complexes using molecular docking technique, and molecular dynamics (MD) analysis. From the molecular docking analysis with NAD+ , we observed that the interaction affinity of the NAD+ decreases with the impact of E504K variant. On the other hand, the drug Disulfiram showed similar interaction in both the native and mutant ALDH2 proteins. Further, the comprehensive MD analysis predicted that the E504K destabilizes the protein and influences the NAD+ and Disulfiram interactions. Our findings reveal that the interaction of NAD+ to the protein is disturbed by the E504K/E487K variant whereas the drug Disulfiram has a similar effect as both native ALDH2 and ALDH2 bearing E504K/E487K variant. This study provides a platform to understand the effect of E504K/E487K on the molecular interaction with NAD+ and Disulfiram.
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Affiliation(s)
- Christy Priyadharshini J
- Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Thirumal Kumar D
- Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Sneha P
- Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Siva R
- Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Charles Emmanuel Jebaraj W
- Department of Biotechnology, Faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research (Deemed to be University), Chennai-600116, Tamil Nadu, India
| | - George Priya Doss C
- Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Hatem Zayed
- Department of Biomedical Sciences, College of Health and Sciences, Qatar University, Doha, P. O. Box:2713, Qatar
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15
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Lee YCA, Li S, Chen Y, Li Q, Chen CJ, Hsu WL, Lou PJ, Zhu C, Pan J, Shen H, Ma H, Cai L, He B, Wang Y, Zhou X, Ji Q, Zhou B, Wu W, Ma J, Boffetta P, Zhang ZF, Dai M, Hashibe M. Tobacco smoking, alcohol drinking, betel quid chewing, and the risk of head and neck cancer in an East Asian population. Head Neck 2018; 41:92-102. [PMID: 30552826 DOI: 10.1002/hed.25383] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/26/2018] [Accepted: 05/31/2018] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The smoking prevalence among men in China is high, but the head and neck cancer incidence rates are low. This study's purpose was to investigate the impact of tobacco, betel quid, and alcohol on head and neck cancer risk in East Asia. METHODS A multicenter case-control study (921 patients with head and neck cancer and 806 controls) in East Asia was conducted. The odds ratio (OR) and 95% confidence interval (CI) were estimated using logistic regression. RESULTS Head and neck cancer risks were elevated for tobacco (OR = 1.58), betel quid (OR = 8.23), and alcohol (OR = 2.29). The total attributable risk of tobacco and/or alcohol was 47.2%. Tobacco/alcohol appeared to account for a small proportion of head and neck cancer among women (attributable risk of 2.2%). Betel quid chewing alone accounted for 28.7% of head and neck cancer. CONCLUSIONS Betel quid chewing is the strongest risk factor for oral cavity cancer in this Chinese population. Alcohol may play a larger role for head and neck cancer in this population than in European or U.S. POPULATIONS
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Affiliation(s)
- Yuan-Chin Amy Lee
- Division of Public Health, Department of Family and Preventive Medicine, and Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, Utah
| | - Shuang Li
- Division of Public Health, Department of Family and Preventive Medicine, and Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, Utah
| | - Yuji Chen
- Division of Public Health, Department of Family and Preventive Medicine, and Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, Utah
| | - Qian Li
- Departments of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Chien-Jen Chen
- Genomics Research Center, Academia Sinica, Taipei, Taiwan.,Graduate Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
| | - Wan-Lun Hsu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Pei-Jen Lou
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - Cairong Zhu
- Department of Epidemiology and Biostatistics, West China School of Public Health, Sichuan University, Sichuan, China
| | - Jian Pan
- Department of Oral Surgery, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Hongbing Shen
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hongxia Ma
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Lin Cai
- Department of Epidemiology and Biostatistics, School of Public Health, Fujian Medical University, Fujian, China
| | - Baochang He
- Department of Epidemiology and Biostatistics, School of Public Health, Fujian Medical University, Fujian, China
| | - Yu Wang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiaoyan Zhou
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Qinghai Ji
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Baosen Zhou
- Department of Epidemiology, School of Public Health, China Medical University, Liaoning, China
| | - Wei Wu
- Department of Epidemiology, School of Public Health, China Medical University, Liaoning, China
| | - Jie Ma
- Department of Head & Neck Oncology, Henan Cancer Hospital, Henan, China
| | - Paolo Boffetta
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Zuo-Feng Zhang
- Department of Epidemiology, and Center for Environmental Genomics, Fielding School of Public Health, University of California, Los Angeles, California
| | - Min Dai
- National Office of Cancer Prevention and Control Cancer Institute and Hospital, and Chinese Academy of Medical Sciences, Beijing, China
| | - Mia Hashibe
- Division of Public Health, Department of Family and Preventive Medicine, and Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, Utah
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16
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Dorokhov YL, Sheshukova EV, Bialik TE, Komarova TV. Human Endogenous Formaldehyde as an Anticancer Metabolite: Its Oxidation Downregulation May Be a Means of Improving Therapy. Bioessays 2018; 40:e1800136. [PMID: 30370669 DOI: 10.1002/bies.201800136] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/27/2018] [Indexed: 02/06/2023]
Abstract
Malignant cells are characterized by an increased content of endogenous formaldehyde formed as a by-product of biosynthetic processes. Accumulation of formaldehyde in cancer cells is combined with activation of the processes of cellular formaldehyde clearance. These mechanisms include increased ALDH and suppressed ADH5/FDH activity, which oncologists consider poor and favorable prognostic markers, respectively. Here, the sources and regulation of formaldehyde metabolism in cancer cells are reviewed. The authors also analyze the participation of oncoproteins such as fibulins, FGFR1, HER2/neu, FBI-1, and MUC1-C in the control of genes related to formaldehyde metabolism, suggesting the existence of two mutually exclusive processes in cancer cells: 1) production and 2) oxidation and elimination of formaldehyde from the cell. The authors hypothesize that the study of the anticancer properties of disulfiram and alpha lipoic acid - which affect the balance of formaldehyde in the body - may serve as the basis of future anticancer therapy.
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Affiliation(s)
- Yuri L Dorokhov
- N.I. Vavilov Institute of General Genetics of RAS, 119991, Moscow, Russia.,A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991, Moscow, Russia
| | | | - Tatiana E Bialik
- N.N. Blokhin National Medical Research Center of Oncology, 115478, Moscow, Russia
| | - Tatiana V Komarova
- N.I. Vavilov Institute of General Genetics of RAS, 119991, Moscow, Russia.,A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991, Moscow, Russia
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17
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Ye X, Wang X, Shang L, Zhu G, Su H, Han C, Qin W, Li G, Peng T. Genetic variants of ALDH2-rs671 and CYP2E1-rs2031920 contributed to risk of hepatocellular carcinoma susceptibility in a Chinese population. Cancer Manag Res 2018; 10:1037-1050. [PMID: 29765251 PMCID: PMC5942392 DOI: 10.2147/cmar.s162105] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Objective Acetaldehyde dehydrogenase 2 (ALDH2) and cytochrome P450 2E1 (CYP2E1) have been associated with hepatocellular carcinoma (HCC) susceptibility and prognosis. The polymorphisms ALDH2 rs671 and CYP2E1 rs2031920 are reportedly correlated with the prevalence of HCC in other countries. The aim of this study was to investigate associations between ALDH2 and CYP2E1, and HCC susceptibility in a population of Guangxi, southern China, an area with a high incidence of HCC. Patients and methods The study cohort included 300 HCC cases, 292 healthy controls for HCC susceptibility analysis, and another 20 HCC cases and 10 healthy controls for ascertainment. Genotyping was performed using the polymerase chain reaction-restriction fragment length polymorphism method. Results The study results demonstrated that mutant genotypes of ALDH2 (G/A and A/A) led to significant differences in HCC susceptibility, as compared with the wild genotype (G/G) with the same C1/C1 genotype in non-drinking individuals (adjusted P=0.010, OR=0.20, 95% CI=0.06–0.68). The mutant genotypes of CYP2E1 (C1/C2 and C2/C2) brought about significant differences in HCC susceptibility, as compared with the wild genotype (C1/C1) and the same G/G genotype (adjusted P=0.025, OR=0.42, 95% CI=0.20–0.90). Drinking plays a role in HCC susceptibility in the same G/G genotype individuals (adjusted P=0.004, OR=0.32, 95% CI=0.15–0.69), but had no impact when combined with CYP2E1 for analysis (all P>0.05). Conclusion These results suggest that the mutant genotypes of ALDH2 and CYP2E1 may be protective factors for HCC susceptibility in Guangxi province, China.
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Affiliation(s)
- Xinping Ye
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, China
| | - Xiangkun Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, China
| | - Liming Shang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, China
| | - Guangzhi Zhu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, China
| | - Hao Su
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, China
| | - Chuangye Han
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, China
| | - Wei Qin
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, China
| | - Guanghui Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, China
| | - Tao Peng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Province, China
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18
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Elharram A, Czegledy NM, Golod M, Milne GL, Pollock E, Bennett BM, Shchepinov MS. Deuterium-reinforced polyunsaturated fatty acids improve cognition in a mouse model of sporadic Alzheimer's disease. FEBS J 2017; 284:4083-4095. [PMID: 29024570 PMCID: PMC5716852 DOI: 10.1111/febs.14291] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 09/14/2017] [Accepted: 10/09/2017] [Indexed: 01/08/2023]
Abstract
Oxidative damage resulting from increased lipid peroxidation (LPO) is considered an important factor in the development of late onset/age-related Alzheimer's disease (AD). Deuterium-reinforced polyunsaturated fatty acids (D-PUFAs) are more resistant to the reactive oxygen species-initiated chain reaction of LPO than regular hydrogenated (H-) PUFAs. We investigated the effect of D-PUFA treatment on LPO and cognitive performance in aldehyde dehydrogenase 2 (Aldh2) null mice, an established model of oxidative stress-related cognitive impairment that exhibits AD-like pathologies. Mice were fed a Western-type diet containing either D- or H-PUFAs for 18 weeks. D-PUFA treatment markedly decreased cortex and hippocampus F2 -isoprostanes by approximately 55% and prostaglandin F2α by 20-25% as compared to H-PUFA treatment. D-PUFAs consistently improved performance in cognitive/memory tests, essentially resetting performance of the D-PUFA-fed Aldh2-/- mice to that of wild-type mice fed a typical laboratory diet. D-PUFAs therefore represent a promising new strategy to broadly reduce rates of LPO, and combat cognitive decline in AD.
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Affiliation(s)
- Ahmed Elharram
- Department of Biomedical & Molecular Sciences and Centre for Neuroscience Studies, Faculty of Health Sciences, Queen's University, Kingston, Canada
| | - Nicole M Czegledy
- Department of Biomedical & Molecular Sciences and Centre for Neuroscience Studies, Faculty of Health Sciences, Queen's University, Kingston, Canada
| | - Michael Golod
- Department of Biomedical & Molecular Sciences and Centre for Neuroscience Studies, Faculty of Health Sciences, Queen's University, Kingston, Canada
| | - Ginger L Milne
- Division of Clinical Pharmacology, Vanderbilt University, Nashville, TN, USA
| | - Erik Pollock
- Stable Isotope Laboratory, University of Arkansas, Fayetteville, AR, USA
| | - Brian M Bennett
- Department of Biomedical & Molecular Sciences and Centre for Neuroscience Studies, Faculty of Health Sciences, Queen's University, Kingston, Canada
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19
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Ghosh S, Bankura B, Ghosh S, Saha ML, Pattanayak AK, Ghatak S, Guha M, Nachimuthu SK, Panda CK, Maji S, Chakraborty S, Maity B, Das M. Polymorphisms in ADH1B and ALDH2 genes associated with the increased risk of gastric cancer in West Bengal, India. BMC Cancer 2017; 17:782. [PMID: 29166882 PMCID: PMC5700676 DOI: 10.1186/s12885-017-3713-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 10/30/2017] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Gastric cancer (GC) is one of the most frequently diagnosed digestive tract cancers and carries a high risk of mortality. Acetaldehyde (AA), a carcinogenic intermediate of ethanol metabolism contributes to the risk of GC. The accumulation of AA largely depends on the activity of the major metabolic enzymes, alcohol dehydrogenase and aldehyde dehydrogenase encoded by the ADH (ADH1 gene cluster: ADH1A, ADH1B and ADH1C) and ALDH2 genes, respectively. This study aimed to evaluate the association between genetic variants in these genes and GC risk in West Bengal, India. METHODS We enrolled 105 GC patients (cases), and their corresponding sex, age and ethnicity was matched to 108 normal individuals (controls). Genotyping for ADH1A (rs1230025), ADH1B (rs3811802, rs1229982, rs1229984, rs6413413, rs4147536, rs2066702 and rs17033), ADH1C (rs698) and ALDH2 (rs886205, rs968529, rs16941667 and rs671) was performed using DNA sequencing and RFLP. RESULTS Genotype and allele frequency analysis of these SNPs revealed that G allele of rs17033 is a risk allele (A vs G: OR = 3.67, 95% CI = 1.54-8.75, p = 0.002) for GC. Significant association was also observed between rs671 and incidence of GC (p = 0.003). Moreover, smokers having the Lys allele of rs671 had a 7-fold increased risk of acquiring the disease (OR = 7.58, 95% CI = 1.34-42.78, p = 0.009). CONCLUSION In conclusion, rs17033 of ADH1B and rs671 of ALDH2 SNPs were associated with GC risk and smoking habit may further modify the effect of rs671. Conversely, rs4147536 of ADH1B might have a protective role in our study population. Additional studies with a larger patient population are needed to confirm our results.
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Affiliation(s)
- Sudakshina Ghosh
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, West Bengal 700019 India
| | - Biswabandhu Bankura
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, West Bengal 700019 India
| | - Soumee Ghosh
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, West Bengal 700019 India
| | - Makhan Lal Saha
- Department of Surgery, Institute of Post Graduate Medical Education & Research, 244 A.J.C Bose Road, Kolkata, West Bengal 700 020 India
| | - Arup Kumar Pattanayak
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, West Bengal 700019 India
| | - Souvik Ghatak
- Department of Biotechnology, Mizoram University, Tanhril, P.O Box No. 190, Aizawl, Mizoram India
| | - Manalee Guha
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, West Bengal 700019 India
| | - Senthil Kumar Nachimuthu
- Department of Biotechnology, Mizoram University, Tanhril, P.O Box No. 190, Aizawl, Mizoram India
| | - Chinmoy Kumar Panda
- Department of Oncogene Regulation and Viral Associated Human Cancer, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata, West Bengal 700026 India
| | - Suvendu Maji
- Department of Surgery, Institute of Post Graduate Medical Education & Research, 244 A.J.C Bose Road, Kolkata, West Bengal 700 020 India
| | - Subrata Chakraborty
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, West Bengal 700019 India
| | - Biswanath Maity
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, West Bengal 700019 India
| | - Madhusudan Das
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, West Bengal 700019 India
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20
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Matejcic M, Gunter MJ, Ferrari P. Alcohol metabolism and oesophageal cancer: a systematic review of the evidence. Carcinogenesis 2017. [PMID: 28645180 DOI: 10.1093/carcin/bgx067] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Alcohol is a major risk factor for oesophageal squamous cell carcinoma (OSCC), the most prevalent histological subtype of oesophageal cancer (OC) worldwide. The metabolism of alcohol is regulated by specific enzymes whose activity and expression is influenced by genetic polymorphisms. We conducted a systematic review of current epidemiological evidence of the relationship between alcohol intake and OC risk, including the role of tobacco smoking and functional polymorphisms of alcohol dehydrogenases (ADHs) and aldehyde dehydrogenases (ALDHs). Potential biological mechanisms underlying oesophageal carcinogenesis are also discussed. Frequency and intensity of alcohol intake have been consistently associated with an increased risk of OSCC in regions with low and high incidence of the disease. The highest risk was reported among tobacco smokers, whereas the association between alcohol and OSCC risk was weak in the absence of tobacco use. The ADH1B, ADH1C and ALDH2 gene polymorphisms influence the risk of OSCC through modulation of acetaldehyde metabolism and propensity to alcohol intake. These functional variants may be suitable proxies of alcohol exposure for use in Mendelian randomization studies if complemented by reported alcohol intake data. Recent epidemiological and experimental studies investigating the role of alcohol consumption in OC development have implicated the microbiome as a new promising avenue for research, which entail novel potential mechanisms of alcohol-related oesophageal carcinogenesis. Microbial communities associated with alcohol consumption might be used as biomarkers to raise the potential of intervening among susceptible individuals.
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Affiliation(s)
- Marco Matejcic
- Nutritional Epidemiology Group, International Agency for Research on Cancer, World Health Organization, 150 cours Albert Thomas, 69372 Lyon CEDEX 08, France
| | - Marc J Gunter
- Nutritional Epidemiology Group, International Agency for Research on Cancer, World Health Organization, 150 cours Albert Thomas, 69372 Lyon CEDEX 08, France
| | - Pietro Ferrari
- Nutritional Epidemiology Group, International Agency for Research on Cancer, World Health Organization, 150 cours Albert Thomas, 69372 Lyon CEDEX 08, France
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21
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Maity S, Sadlowski CM, George Lin JM, Chen CH, Peng LH, Lee ES, Vegesna GK, Lee C, Kim SH, Mochly-Rosen D, Kumar S, Murthy N. Thiophene bridged aldehydes (TBAs) image ALDH activity in cells via modulation of intramolecular charge transfer. Chem Sci 2017; 8:7143-7151. [PMID: 29081945 PMCID: PMC5635522 DOI: 10.1039/c7sc03017g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 08/01/2017] [Indexed: 12/15/2022] Open
Abstract
Aldehyde dehydrogenases (ALDHs) catalyze the oxidation of an aldehyde to a carboxylic acid and are implicated in the etiology of numerous diseases. However, despite their importance, imaging ALDH activity in cells is challenging due to a lack of fluorescent imaging probes. In this report, we present a new family of fluorescent probes composed of an oligothiophene flanked by an aldehyde and an electron donor, termed thiophene-bridged aldehydes (TBAs), which can image ALDH activity in cells. The TBAs image ALDH activity via a fluorescence sensing mechanism based on the modulation of intramolecular charge transfer (ICT) and this enables the TBAs and their ALDH-mediated oxidized products, thiophene-bridged carboxylates (TBCs), to have distinguishable fluorescence spectra. Herein, we show that the TBAs can image ALDH activity in cells via fluorescence microscopy, flow cytometry, and in a plate reader. Using TBA we were able to develop a cell-based high throughput assay for ALDH inhibitors, for the first time, and screened a large, 1460-entry electrophile library against A549 cells. We identified α,β-substituted acrylamides as potent electrophile fragments that can inhibit ALDH activity in cells. These inhibitors sensitized drug-resistant glioblastoma cells to the FDA approved anti-cancer drug, temozolomide. The TBAs have the potential to make the analysis of ALDH activity in cells routinely possible given their ability to spectrally distinguish between an aldehyde and a carboxylic acid.
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Affiliation(s)
- Santanu Maity
- Department of Bioengineering , University of California , 140 Hearst Memorial Mining Building , Berkeley , CA 94720 , USA .
| | - Corinne M Sadlowski
- Department of Bioengineering , University of California , 140 Hearst Memorial Mining Building , Berkeley , CA 94720 , USA .
| | - Jung-Ming George Lin
- Department of Bioengineering , University of California , 140 Hearst Memorial Mining Building , Berkeley , CA 94720 , USA .
- The UC Berkeley-UCSF Graduate Program in Bioengineering , UC Berkeley , Berkeley , California , USA
| | - Che-Hong Chen
- Department of Chemical and Systems Biology , Stanford University , School of Medicine , Stanford , CA 94305-5174 , USA
| | - Li-Hua Peng
- Department of Bioengineering , University of California , 140 Hearst Memorial Mining Building , Berkeley , CA 94720 , USA .
| | - Eun-Soo Lee
- Korea Research Institute of Standards and Science , 267 Gajeong-ro, Yuseong-gu , Daejeon , Republic of Korea
| | - Giri K Vegesna
- Department of Bioengineering , University of California , 140 Hearst Memorial Mining Building , Berkeley , CA 94720 , USA .
| | - Charles Lee
- Department of Bioengineering , University of California , 140 Hearst Memorial Mining Building , Berkeley , CA 94720 , USA .
| | - Se-Hwa Kim
- Korea Research Institute of Standards and Science , 267 Gajeong-ro, Yuseong-gu , Daejeon , Republic of Korea
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology , Stanford University , School of Medicine , Stanford , CA 94305-5174 , USA
| | - Sanjay Kumar
- Department of Bioengineering , University of California , 140 Hearst Memorial Mining Building , Berkeley , CA 94720 , USA .
- The UC Berkeley-UCSF Graduate Program in Bioengineering , UC Berkeley , Berkeley , California , USA
| | - Niren Murthy
- Department of Bioengineering , University of California , 140 Hearst Memorial Mining Building , Berkeley , CA 94720 , USA .
- The UC Berkeley-UCSF Graduate Program in Bioengineering , UC Berkeley , Berkeley , California , USA
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22
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Vandemoortele A, Babat P, Yakubu M, De Meulenaer B. Reactivity of Free Malondialdehyde during In Vitro Simulated Gastrointestinal Digestion. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:2198-2204. [PMID: 28244323 DOI: 10.1021/acs.jafc.7b00053] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An aqueous buffer, a saturated glycerol triheptanoate oil, and a Tween 20 stabilized fully hydrogenated coconut oil-in-water emulsion, all spiked with malondialdehyde, were subjected to in vitro digestion. A dynamic equilibrium between malondialdehyde, its aldol self-condensation products, and its hydrolytic cleavage products was observed. This equilibrium depended upon the kind of sample and the temperature at which these samples were preincubated during 24 h. The presence of oil during gastric digestion protected the aldol self-condensation and cleavage products from conversion to malondialdehyde, which occurred in the aqueous acidic gastric chyme. In parallel, the presence of oil enhanced the reactivity of malondialdehyde throughout the gastrointestinal digestion process. Malondialdehyde recoveries after digestion varied between 42 and 90%, depending upon the model system studied, with the aldol self-condensation as the main reaction pathway. In conclusion, this study revealed that malondialdehyde is a very reactive molecule whose reactivity does not stop at the point of ingestion.
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Affiliation(s)
- Angelique Vandemoortele
- NutriFOODchem Unit, Department of Food Safety and Food Quality (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University , Coupure Links 653, B-9000 Ghent, Belgium
| | - Pinar Babat
- NutriFOODchem Unit, Department of Food Safety and Food Quality (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University , Coupure Links 653, B-9000 Ghent, Belgium
| | - Mariam Yakubu
- NutriFOODchem Unit, Department of Food Safety and Food Quality (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University , Coupure Links 653, B-9000 Ghent, Belgium
| | - Bruno De Meulenaer
- NutriFOODchem Unit, Department of Food Safety and Food Quality (Partner in Food2Know), Faculty of Bioscience Engineering, Ghent University , Coupure Links 653, B-9000 Ghent, Belgium
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23
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Bailie L, Loughrey MB, Coleman HG. Lifestyle Risk Factors for Serrated Colorectal Polyps: A Systematic Review and Meta-analysis. Gastroenterology 2017; 152:92-104. [PMID: 27639804 DOI: 10.1053/j.gastro.2016.09.003] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 08/18/2016] [Accepted: 09/21/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Certain subsets of colorectal serrated polyps (SP) have malignant potential. We performed a systematic review and meta-analysis to investigate the association between modifiable lifestyle factors and risk for SPs. METHODS We conducted a systematic search of Medline, Embase, and Web of Science for observational or interventional studies that contained the terms risk or risk factor, and serrated or hyperplastic, and polyps or adenomas, and colorectal (or synonymous terms), published by March 2016. Titles and abstracts of identified articles were independently reviewed by at least 2 reviewers. Adjusted relative risk (RR) and 95% confidence interval (CI) were combined using random effects meta-analyses to assess the risk of SP, when possible. RESULTS We identified 43 studies of SP risk associated with 7 different lifestyle factors: smoking, alcohol, body fatness, diet, physical activity, medication, and hormone-replacement therapy. When we compared the highest and lowest categories of exposure, factors we found to significantly increase risk for SP included tobacco smoking (RR, 2.47; 95% CI, 2.12-2.87), alcohol intake (RR, 1.33; 95% CI, 1.17-1.52), body mass index (RR, 1.40; 95% CI, 1.22-1.61), and high intake of fat or meat. Direct associations for smoking and alcohol, but not body fat, tended to be stronger for sessile serrated adenomas/polyps than hyperplastic polyps. In contrast, factors we found to significantly decrease risks for SP included use of nonsteroidal anti-inflammatory drugs (RR, 0.77; 95% CI, 0.65-0.92) or aspirin (RR, 0.81; 95% CI, 0.67-0.99), as well as high intake of folate, calcium, or fiber. No significant associations were detected between SP risk and physical activity or hormone replacement therapy. CONCLUSIONS Several lifestyle factors, most notably smoking and alcohol, are associated with SP risk. These findings enhance our understanding of mechanisms of SP development and indicate that risk of serrated pathway colorectal neoplasms could be reduced with lifestyle changes.
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Affiliation(s)
- Lesley Bailie
- Cancer Epidemiology and Health Services Research Group, Centre for Public Health, Queens University Belfast, Belfast, Northern Ireland
| | - Maurice B Loughrey
- Department of Pathology, Royal Victoria Hospital, Belfast Health and Social Care Trust, Belfast, Northern Ireland
| | - Helen G Coleman
- Cancer Epidemiology and Health Services Research Group, Centre for Public Health, Queens University Belfast, Belfast, Northern Ireland.
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24
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Dunnick JK, Shockley KR, Morgan DL, Brix A, Travlos GS, Gerrish K, Michael Sanders J, Ton TV, Pandiri AR. Hepatic transcriptomic alterations for N,N-dimethyl-p-toluidine (DMPT) and p-toluidine after 5-day exposure in rats. Arch Toxicol 2016; 91:1685-1696. [PMID: 27638505 DOI: 10.1007/s00204-016-1831-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 08/24/2016] [Indexed: 12/17/2022]
Abstract
N,N-dimethyl-p-toluidine (DMPT), an accelerant for methyl methacrylate monomers in medical devices, was a liver carcinogen in male and female F344/N rats and B6C3F1 mice in a 2-year oral exposure study. p-Toluidine, a structurally related chemical, was a liver carcinogen in mice but not in rats in an 18-month feed exposure study. In this current study, liver transcriptomic data were used to characterize mechanisms in DMPT and p-toluidine liver toxicity and for conducting benchmark dose (BMD) analysis. Male F344/N rats were exposed orally to DMPT or p-toluidine (0, 1, 6, 20, 60 or 120 mg/kg/day) for 5 days. The liver was examined for lesions and transcriptomic alterations. Both chemicals caused mild hepatic toxicity at 60 and 120 mg/kg and dose-related transcriptomic alterations in the liver. There were 511 liver transcripts differentially expressed for DMPT and 354 for p-toluidine at 120 mg/kg/day (false discovery rate threshold of 5 %). The liver transcriptomic alterations were characteristic of an anti-oxidative damage response (activation of the Nrf2 pathway) and hepatic toxicity. The top cellular processes in gene ontology (GO) categories altered in livers exposed to DMPT or p-toluidine were used for BMD calculations. The lower confidence bound benchmark doses for these chemicals were 2 mg/kg/day for DMPT and 7 mg/kg/day for p-toluidine. These studies show the promise of using 5-day target organ transcriptomic data to identify chemical-induced molecular changes that can serve as markers for preliminary toxicity risk assessment.
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Affiliation(s)
- June K Dunnick
- Toxicology Branch, National Institute of Environmental Health Sciences, P. O. Box 12233, Research Triangle Park, NC, 27709, USA.
| | - Keith R Shockley
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, P. O. Box 12233, Research Triangle Park, NC, 27709, USA
| | - Daniel L Morgan
- NTP Laboratory, National Institute of Environmental Health Sciences, P. O. Box 12233, Research Triangle Park, NC, 27709, USA
| | - Amy Brix
- Experimental Pathology Laboratories, Inc., National Institute of Environmental Health Sciences, P. O. Box 12233, Research Triangle Park, NC, 27709, USA
| | - Gregory S Travlos
- Cellular and Molecular Pathology Branch, National Institute of Environmental Health Sciences, P. O. Box 12233, Research Triangle Park, NC, 27709, USA
| | - Kevin Gerrish
- Molecular Genomics Core, National Institute of Environmental Health Sciences, P. O. Box 12233, Research Triangle Park, NC, 27709, USA
| | - J Michael Sanders
- National Cancer Institute at NIEHS, National Institute of Environmental Health Sciences, P. O. Box 12233, Research Triangle Park, NC, 27709, USA
| | - T V Ton
- Cellular and Molecular Pathology Branch, National Institute of Environmental Health Sciences, P. O. Box 12233, Research Triangle Park, NC, 27709, USA
| | - Arun R Pandiri
- Cellular and Molecular Pathology Branch, National Institute of Environmental Health Sciences, P. O. Box 12233, Research Triangle Park, NC, 27709, USA
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25
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Orywal K, Szmitkowski M. Alcohol dehydrogenase and aldehyde dehydrogenase in malignant neoplasms. Clin Exp Med 2016; 17:131-139. [PMID: 26886278 PMCID: PMC5403859 DOI: 10.1007/s10238-016-0408-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 01/28/2016] [Indexed: 01/17/2023]
Abstract
According to International Agency for Research on Cancer, ethanol and acetaldehyde belong to group 1 of human carcinogens. The accurate mechanism by which alcohol consumption enhances carcinogenesis is still unexplained. Alcohol is oxidized primarily by alcohol dehydrogenase (ADH) to acetaldehyde, a substance capable of initiating carcinogenesis by forming adducts with proteins and DNA and causing mutations. Next, acetaldehyde is metabolized by aldehyde dehydrogenase (ALDH) to acetate. In tissues of many cancers, we can observe significantly higher activity of total alcohol dehydrogenase with any change in aldehyde dehydrogenase activity in comparison with healthy cells. Moreover, in malignant diseases of digestive system, significantly increased activity of ADH isoenzymes class I, III and IV was found. The gynecological, brain and renal cancers exhibit increased activity of class I ADH. ADH and ALDH can play also a crucial regulatory role in initiation and progression of malignant diseases by participation in retinoic acid synthesis and elimination of toxic acetaldehyde. Besides, changes of enzymes activities in tumor cells are reflected in serum of cancer patients, which create the possibilities of application ADH isoenzymes as cancer markers.
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Affiliation(s)
- Karolina Orywal
- Department of Biochemical Diagnostics, Medical University of Bialystok, Waszyngtona 15 A, 15-276, Białystok, Poland.
| | - Maciej Szmitkowski
- Department of Biochemical Diagnostics, Medical University of Bialystok, Waszyngtona 15 A, 15-276, Białystok, Poland
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26
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Wang L, Hitron JA, Wise JTF, Son YO, Roy RV, Kim D, Dai J, Pratheeshkumar P, Zhang Z, Xu M, Luo J, Shi X. Ethanol enhances arsenic-induced cyclooxygenase-2 expression via both NFAT and NF-κB signalings in colorectal cancer cells. Toxicol Appl Pharmacol 2015. [PMID: 26220687 DOI: 10.1016/j.taap.2015.07.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Arsenic is a known carcinogen to humans, and chronic exposure to environmental arsenic is a worldwide health concern. As a dietary factor, ethanol carries a well-established risk for malignancies, but the effects of co-exposure to arsenic and ethanol on tumor development are not well understood. In the present study, we hypothesized that ethanol would enhance the function of an environmental carcinogen such as arsenic through increase in COX-2 expression. Our in vitro results show that ethanol enhanced arsenic-induced COX-2 expression. We also show that the increased COX-2 expression associates with intracellular ROS generation, up-regulated AKT signaling, with activation of both NFAT and NF-κB pathways. We demonstrate that antioxidant enzymes have an inhibitory effect on arsenic/ethanol-induced COX-2 expression, indicating that the responsive signaling pathways from co-exposure to arsenic and ethanol relate to ROS generation. In vivo results also show that co-exposure to arsenic and ethanol increased COX-2 expression in mice. We conclude that ethanol enhances arsenic-induced COX-2 expression in colorectal cancer cells via both the NFAT and NF-κB pathways. These results imply that, as a common dietary factor, ethanol ingestion may be a compounding risk factor for arsenic-induced carcinogenesis/cancer development.
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Affiliation(s)
- Lei Wang
- Center for Research on Environmental Disease, College of Medicine, University of Kentucky, Lexington, KY 40536, USA; Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - John Andrew Hitron
- Center for Research on Environmental Disease, College of Medicine, University of Kentucky, Lexington, KY 40536, USA; Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - James T F Wise
- Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Young-Ok Son
- Center for Research on Environmental Disease, College of Medicine, University of Kentucky, Lexington, KY 40536, USA; Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Ram Vinod Roy
- Center for Research on Environmental Disease, College of Medicine, University of Kentucky, Lexington, KY 40536, USA; Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Donghern Kim
- Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Jin Dai
- Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Poyil Pratheeshkumar
- Center for Research on Environmental Disease, College of Medicine, University of Kentucky, Lexington, KY 40536, USA; Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Zhuo Zhang
- Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Mei Xu
- Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Jia Luo
- Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Xianglin Shi
- Center for Research on Environmental Disease, College of Medicine, University of Kentucky, Lexington, KY 40536, USA; Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA.
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27
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Pharmacological recruitment of aldehyde dehydrogenase 3A1 (ALDH3A1) to assist ALDH2 in acetaldehyde and ethanol metabolism in vivo. Proc Natl Acad Sci U S A 2015; 112:3074-9. [PMID: 25713355 DOI: 10.1073/pnas.1414657112] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Correcting a genetic mutation that leads to a loss of function has been a challenge. One such mutation is in aldehyde dehydrogenase 2 (ALDH2), denoted ALDH2*2. This mutation is present in ∼ 0.6 billion East Asians and results in accumulation of toxic acetaldehyde after consumption of ethanol. To temporarily increase metabolism of acetaldehyde in vivo, we describe an approach in which a pharmacologic agent recruited another ALDH to metabolize acetaldehyde. We focused on ALDH3A1, which is enriched in the upper aerodigestive track, and identified Alda-89 as a small molecule that enables ALDH3A1 to metabolize acetaldehyde. When given together with the ALDH2-specific activator, Alda-1, Alda-89 reduced acetaldehyde-induced behavioral impairment by causing a rapid reduction in blood ethanol and acetaldehyde levels after acute ethanol intoxication in both wild-type and ALDH2-deficient, ALDH2*1/*2, heterozygotic knock-in mice. The use of a pharmacologic agent to recruit an enzyme to metabolize a substrate that it usually does not metabolize may represent a novel means to temporarily increase elimination of toxic agents in vivo.
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28
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Cai Q, Wu J, Cai Q, Chen EZ, Jiang ZY. Association between Glu504Lys polymorphism of ALDH2 gene and cancer risk: a meta-analysis. PLoS One 2015; 10:e0117173. [PMID: 25680115 PMCID: PMC4334541 DOI: 10.1371/journal.pone.0117173] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 12/18/2014] [Indexed: 01/17/2023] Open
Abstract
Background The association of the aldehyde dehydrogenases-2 (ALDH2) Glu504Lys polymorphism (also named Glu487Lys, or rs671) and cancers has been investigated. This meta-analysis aims to comprehensively assess the influence of this polymorphism on the overall cancer risk. Methods Eligible publications were retrieved according to inclusion/exclusion criteria and the data were analyzed using the Review Manager software (V5.2). Results A meta-analysis based on 51 case-control studies consisting of 16774 cases and 32060 controls was performed to evaluate the association between the ALDH2 Glu504Lys polymorphism and cancer risk. The comparison of genotypes Lys+ (Lys/Lys and Lys/Glu) with Glu/Glu yielded a significant 20% increased cancer risk (OR = 1.20, 95%CI: 1.03–1.39, P = 0.02, I2 = 92%). Subgroup analysis by cancer type indicated a significantly increased UADT cancer risk (OR = 1.39, 95%CI: 1.11–1.73, P = 0.004, I2 = 94%) in individuals with the Lys+ genotypes. Subgroup analysis by country indicated that individuals from Japan with the Lys+ genotypes had a significant 38% increased cancer risk (OR = 1.38, 95%CI: 1.12–1.71, P = 0.003, I2 = 93%). Conclusions Our results indicated that the ALDH2 Glu504Lys polymorphism is a susceptible loci associated with overall cancers, especially esophageal cancer and among Japanese population.
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Affiliation(s)
- Qiang Cai
- Department of Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Jian Wu
- Department of Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Qu Cai
- Department of Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Er-Zhen Chen
- Department of Emergency, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Zhao-Yan Jiang
- Department of Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
- * E-mail:
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29
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Chen CH, Ferreira JCB, Gross ER, Mochly-Rosen D. Targeting aldehyde dehydrogenase 2: new therapeutic opportunities. Physiol Rev 2014; 94:1-34. [PMID: 24382882 DOI: 10.1152/physrev.00017.2013] [Citation(s) in RCA: 421] [Impact Index Per Article: 42.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A family of detoxifying enzymes called aldehyde dehydrogenases (ALDHs) has been a subject of recent interest, as its role in detoxifying aldehydes that accumulate through metabolism and to which we are exposed from the environment has been elucidated. Although the human genome has 19 ALDH genes, one ALDH emerges as a particularly important enzyme in a variety of human pathologies. This ALDH, ALDH2, is located in the mitochondrial matrix with much known about its role in ethanol metabolism. Less known is a new body of research to be discussed in this review, suggesting that ALDH2 dysfunction may contribute to a variety of human diseases including cardiovascular diseases, diabetes, neurodegenerative diseases, stroke, and cancer. Recent studies suggest that ALDH2 dysfunction is also associated with Fanconi anemia, pain, osteoporosis, and the process of aging. Furthermore, an ALDH2 inactivating mutation (termed ALDH2*2) is the most common single point mutation in humans, and epidemiological studies suggest a correlation between this inactivating mutation and increased propensity for common human pathologies. These data together with studies in animal models and the use of new pharmacological tools that activate ALDH2 depict a new picture related to ALDH2 as a critical health-promoting enzyme.
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30
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Cuomo R, Andreozzi P, Zito FP. Alcoholic beverages and carbonated soft drinks: consumption and gastrointestinal cancer risks. Cancer Treat Res 2014; 159:97-120. [PMID: 24114477 DOI: 10.1007/978-3-642-38007-5_7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Alcoholic beverages (ABs) and carbonated soft drinks (CSDs) are widely consumed worldwide. Given the high consumption of these beverages, the scientific community has increased its focus on their health impact. There is epidemiological evidence of a causal association between AB intake and digestive cancer, but the role of alcohol in determining cancer is not fully defined. Experimental studies have so far identified multiple mechanisms involved in carcinogenesis; ethanol itself is not carcinogenic but available data suggest that acetaldehyde (AA) and reactive oxygen species-both products of ethanol metabolism-have a genotoxic effect promoting carcinogenesis. Other carcinogenetic mechanisms include nutritional deficits, changes in DNA methylation, and impaired immune surveillance. As CSDs are often suspected to cause certain gastrointestinal disorders, consequently, some researchers have hypothesized their involvement in gastrointestinal cancers. Of all the ingredients, carbon dioxide is prevalently involved in the alteration of gastrointestinal physiology by a direct mucosal effect and indirect effects mediated by the mechanical pressure determined by gas. The role of sugar or artificial sweeteners is also debated as factors involved in the carcinogenic processes. However, several surveys have failed to show any associations between CSDs and esophageal, gastric, or colon cancers. On the other hand, a slight correlation between risk of pancreatic cancer and CSD consumption has been found.
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Affiliation(s)
- Rosario Cuomo
- Department of Clinical & Experimental Medicine, Hospital School of Medicine, Federico II University, Via S. Pansini 5, Building no. 6, 80131, Naples, Italy,
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31
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Crous-Bou M, Rennert G, Cuadras D, Salazar R, Cordero D, Saltz Rennert H, Lejbkowicz F, Kopelovich L, Monroe Lipkin S, Bernard Gruber S, Moreno V. Polymorphisms in alcohol metabolism genes ADH1B and ALDH2, alcohol consumption and colorectal cancer. PLoS One 2013; 8:e80158. [PMID: 24282520 PMCID: PMC3839967 DOI: 10.1371/journal.pone.0080158] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 09/30/2013] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is a leading cause of cancer death worldwide. Epidemiological risk factors for CRC included alcohol intake, which is mainly metabolized to acetaldehyde by alcohol dehydrogenase and further oxidized to acetate by aldehyde dehydrogenase; consequently, the role of genes in the alcohol metabolism pathways is of particular interest. The aim of this study is to analyze the association between SNPs in ADH1B and ALDH2 genes and CRC risk, and also the main effect of alcohol consumption on CRC risk in the study population. METHODOLOGY/PRINCIPAL FINDINGS SNPs from ADH1B and ALDH2 genes, included in alcohol metabolism pathway, were genotyped in 1694 CRC cases and 1851 matched controls from the Molecular Epidemiology of Colorectal Cancer study. Information on clinicopathological characteristics, lifestyle and dietary habits were also obtained. Logistic regression and association analysis were conducted. A positive association between alcohol consumption and CRC risk was observed in male participants from the Molecular Epidemiology of Colorectal Cancer study (MECC) study (OR = 1.47; 95%CI = 1.18-1.81). Moreover, the SNPs rs1229984 in ADH1B gene was found to be associated with CRC risk: under the recessive model, the OR was 1.75 for A/A genotype (95%CI = 1.21-2.52; p-value = 0.0025). A path analysis based on structural equation modeling showed a direct effect of ADH1B gene polymorphisms on colorectal carcinogenesis and also an indirect effect mediated through alcohol consumption. CONCLUSIONS/SIGNIFICANCE Genetic polymorphisms in the alcohol metabolism pathways have a potential role in colorectal carcinogenesis, probably due to the differences in the ethanol metabolism and acetaldehyde oxidation of these enzyme variants.
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Affiliation(s)
- Marta Crous-Bou
- Cancer Prevention and Control Program, Catalan Institute of Oncology, Barcelona, Spain
- Colorectal Cancer Group, Bellvitge Biomedical Research Institute and Consorcio de Investigación Biomédica de Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Gad Rennert
- Clalit Health Services, National Cancer Control Center, Department of Community Medicine and Epidemiology, Technion-Israel Institute of Technology, Haifa, Israel
- B. Rappaport Faculty, Medicine Carmel Medical Center, Technion-Israel Institute of Technology, Haifa, Israel
| | - Daniel Cuadras
- Colorectal Cancer Group, Bellvitge Biomedical Research Institute and Consorcio de Investigación Biomédica de Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Ramon Salazar
- Colorectal Cancer Group, Bellvitge Biomedical Research Institute and Consorcio de Investigación Biomédica de Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
- Medical Oncology Service, Catalan Institute of Oncology, Barcelona, Spain
| | - David Cordero
- Cancer Prevention and Control Program, Catalan Institute of Oncology, Barcelona, Spain
- Colorectal Cancer Group, Bellvitge Biomedical Research Institute and Consorcio de Investigación Biomédica de Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Hedy Saltz Rennert
- Clalit Health Services, National Cancer Control Center, Department of Community Medicine and Epidemiology, Technion-Israel Institute of Technology, Haifa, Israel
- B. Rappaport Faculty, Medicine Carmel Medical Center, Technion-Israel Institute of Technology, Haifa, Israel
| | - Flavio Lejbkowicz
- Clalit Health Services, National Cancer Control Center, Department of Community Medicine and Epidemiology, Technion-Israel Institute of Technology, Haifa, Israel
- B. Rappaport Faculty, Medicine Carmel Medical Center, Technion-Israel Institute of Technology, Haifa, Israel
| | - Levy Kopelovich
- Division of Cancer Prevention, National Cancer Institute, Rockville, Maryland, United States of America
| | - Steven Monroe Lipkin
- Department of Medicine, Weill Cornell Medical College, New York, New York, United States of America
| | - Stephen Bernard Gruber
- Department of Internal Medicine, Epidemiology and Human Genetics, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
- University of Southern California Norris Comprehensive Cancer Center, Los Angeles, California, United States of America
| | - Victor Moreno
- Cancer Prevention and Control Program, Catalan Institute of Oncology, Barcelona, Spain
- Colorectal Cancer Group, Bellvitge Biomedical Research Institute and Consorcio de Investigación Biomédica de Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
- Department of Clinical Sciences, Faculty of Medicine, University of Barcelona, Barcelona, Spain
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D'Souza Y, Ji Y, Bennett BM. Effect of overexpression of human aldehyde dehydrogenase 2 in LLC-PK1 cells on glyceryl trinitrate biotransformation and cGMP accumulation. Br J Pharmacol 2013; 168:978-87. [PMID: 22994391 DOI: 10.1111/j.1476-5381.2012.02220.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Revised: 07/29/2012] [Accepted: 09/11/2012] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Recent studies suggest a primary role for aldehyde dehydrogenase 2 (ALDH2) in mediating the biotransformation of organic nitrates, such as glyceryl trinitrate (GTN), to the proximal activator of soluble guanylyl cyclase (sGC), resulting in increased cGMP accumulation and vasodilation. Our objective was to assess the role of ALDH2 in organic nitrate action using a cell culture model. EXPERIMENTAL APPROACH Porcine renal epithelial (LLC-PK1) cells possess an intact NO-sGC-cGMP signaling system, and can be used as a biochemical model of organic nitrate action. We used a pcDNA3.1-human ALDH2 expression vector to establish a stably transfected cell line (PK1(ALDH2)) that overexpressed ALDH2, or small interfering RNA (siRNA) to deplete endogenous ALDH2, and assessed GTN biotransformation and GTN-induced cGMP formation. KEY RESULTS ALDH2 activity in the stably transfected cells was approximately sevenfold higher than wild-type cells or cells stably transfected with empty vector (PK1(vector)); and protein expression, as assessed by immunoblot analysis, was markedly increased. In PK1(ALDH2), GTN biotransformation was significantly increased as a result of increased glyceryl-1,2-dinitrate formation compared to wild-type or PK1(vector). However, the incubation of PK1(ALDH2) with 1 or 10 μM GTN did not alter GTN-induced cGMP accumulation compared with wild-type or PK1(vector) cells. Furthermore, siRNA-mediated depletion of ALDH2 had no effect on GTN-induced cGMP formation. CONCLUSIONS AND IMPLICATIONS In an intact cell system, neither overexpression nor depletion of ALDH2 affects GTN-induced cGMP formation, indicating that ALDH2 does not mediate the mechanism-based biotransformation of GTN to an activator of sGC.
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Affiliation(s)
- Y D'Souza
- Department of Biomedical and Molecular Sciences, Faculty of Health Sciences, Queen's University, Kingston, Ontario, Canada
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Josan S, Xu T, Yen YF, Hurd R, Ferreira J, Chen CH, Mochly-Rosen D, Pfefferbaum A, Mayer D, Spielman D. In vivo measurement of aldehyde dehydrogenase-2 activity in rat liver ethanol model using dynamic MRSI of hyperpolarized [1-(13) C]pyruvate. NMR IN BIOMEDICINE 2013; 26:607-12. [PMID: 23225495 PMCID: PMC3634870 DOI: 10.1002/nbm.2897] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 10/29/2012] [Accepted: 11/05/2012] [Indexed: 05/26/2023]
Abstract
To date, measurements of the activity of aldehyde dehydrogenase-2 (ALDH2), a critical mitochondrial enzyme for the elimination of certain cytotoxic aldehydes in the body and a promising target for drug development, have been largely limited to in vitro methods. Recent advancements in MRS of hyperpolarized (13) C-labeled substrates have provided a method to detect and image in vivo metabolic pathways with signal-to-noise ratio gains greater than 10 000-fold over conventional MRS techniques. However aldehydes, because of their toxicity and short T1 relaxation times, are generally poor targets for such (13) C-labeled studies. In this work, we show that dynamic MRSI of hyperpolarized [1-(13) C]pyruvate and its conversion to [1-(13) C]lactate can provide an indirect in vivo measurement of ALDH2 activity via the concentration of NADH (nicotinamide adenine dinucleotide, reduced form), a co-factor common to both the reduction of pyruvate to lactate and the oxidation of acetaldehyde to acetate. Results from a rat liver ethanol model (n = 9) show that changes in (13) C-lactate labeling following the bolus injection of hyperpolarized pyruvate are highly correlated with changes in ALDH2 activity (R(2) = 0.76).
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Affiliation(s)
- Sonal Josan
- SRI International, Neuroscience Program, 333 Ravenswood Ave., Menlo Park, CA 94025
- Stanford University, Department of Radiology, Lucas MRI Center, 1201 Welch Rd. Stanford, CA 94305
| | - Tao Xu
- Stanford University, Department of Radiology, Lucas MRI Center, 1201 Welch Rd. Stanford, CA 94305
- Stanford University, Department of Electrical Engineering, Stanford, CA 94305
| | - Yi-Fen Yen
- Stanford University, Department of Radiology, Lucas MRI Center, 1201 Welch Rd. Stanford, CA 94305
| | - Ralph Hurd
- GE Healthcare Applied Sciences Laboratory, 333 Ravenswood Ave., Menlo Park, CA 94025
| | - Julio Ferreira
- Stanford University School of Medicine, Department of Chemical and Systems Biology, Stanford, CA 94305
| | - Che-Hong Chen
- Stanford University School of Medicine, Department of Chemical and Systems Biology, Stanford, CA 94305
| | - Daria Mochly-Rosen
- Stanford University School of Medicine, Department of Chemical and Systems Biology, Stanford, CA 94305
| | - Adolf Pfefferbaum
- SRI International, Neuroscience Program, 333 Ravenswood Ave., Menlo Park, CA 94025
- Stanford University, Department of Psychiatry and Behavioral Sciences, 401 Quarry Rd., Stanford, CA 94305
| | - Dirk Mayer
- SRI International, Neuroscience Program, 333 Ravenswood Ave., Menlo Park, CA 94025
- Stanford University, Department of Radiology, Lucas MRI Center, 1201 Welch Rd. Stanford, CA 94305
| | - Daniel Spielman
- Stanford University, Department of Radiology, Lucas MRI Center, 1201 Welch Rd. Stanford, CA 94305
- Stanford University, Department of Electrical Engineering, Stanford, CA 94305
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Gay LJ, Mitrou PN, Keen J, Bowman R, Naguib A, Cooke J, Kuhnle GG, Burns PA, Luben R, Lentjes M, Khaw KT, Ball RY, Ibrahim AE, Arends MJ. Dietary, lifestyle and clinicopathological factors associated with APC mutations and promoter methylation in colorectal cancers from the EPIC-Norfolk study. J Pathol 2012; 228:405-15. [PMID: 22864938 DOI: 10.1002/path.4085] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 07/27/2012] [Accepted: 07/29/2012] [Indexed: 12/21/2022]
Abstract
The tumour suppressor APC is the most commonly altered gene in colorectal cancer (CRC). Genetic and epigenetic alterations of APC may therefore be associated with dietary and lifestyle risk factors for CRC. Analysis of APC mutations in the extended mutation cluster region (codons 1276-1556) and APC promoter 1A methylation was performed on 185 archival CRC samples collected from participants of the European Prospective Investigation into Cancer (EPIC)-Norfolk study, with the aim of relating these to high-quality seven-day dietary and lifestyle data collected prospectively. Truncating APC mutations (APC(+) ) and promoter 1A methylation (PM(+) ) were identified in 43% and 23% of CRCs analysed, respectively. Distal CRCs were more likely than proximal CRCs to be APC(+) or PM(+) (p = 0.04). APC(+) CRCs were more likely to be moderately/well differentiated and microsatellite stable than APC(-) CRCs (p = 0.05 and 0.03). APC(+) CRC cases consumed more alcohol than their counterparts (p = 0.01) and PM(+) CRC cases consumed lower levels of folate and fibre (p = 0.01 and 0.004). APC(+) or PM(+) CRC cases consumed higher levels of processed meat and iron from red meat and red meat products (p = 0.007 and 0.006). Specifically, CRC cases harbouring GC-to-AT transition mutations consumed higher levels of processed meat (35 versus 24 g/day, p = 0.04) and iron from red meat and red meat products (0.8 versus 0.6 mg/day, p = 0.05). In a logistic regression model adjusted for age, sex and cigarette-smoking status, each 19 g/day (1SD) increment increase in processed meat consumption was associated with cases with GC-to-AT mutations (OR 1.68, 95% CI 1.03-2.75). In conclusion, APC(+) and PM(+) CRCs may be influenced by diet and GC-to-AT mutations in APC are associated with processed meat consumption, suggesting a mechanistic link with dietary alkylating agents, such as N-nitroso compounds.
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Affiliation(s)
- Laura J Gay
- Medical Research Council Dunn Human Nutrition Unit, Cambridge, UK
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Wang L, Son YO, Ding S, Wang X, Hitron JA, Budhraja A, Lee JC, Lin Q, Poyil P, Zhang Z, Luo J, Shi X. Ethanol enhances tumor angiogenesis in vitro induced by low-dose arsenic in colon cancer cells through hypoxia-inducible factor 1 alpha pathway. Toxicol Sci 2012; 130:269-80. [PMID: 22872060 DOI: 10.1093/toxsci/kfs242] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Health effects due to environmental exposure to arsenic are a major global health concern. Arsenic has been known to induce carcinogenesis and enhance tumor development via complex and unclear mechanism. Ethanol is also a well-established risk factor for many malignancies. However, little is known about the effects of coexposure to arsenic and ethanol in tumor development. In this study, we investigate the signaling and angiogenic effect of coexposure of arsenic and ethanol on different colon cancer cell lines. Results show that ethanol markedly enhanced arsenic-induced tumor angiogenesis in vitro. These responses are related to intracellular reactive oxygen species (ROS) generation, NADPH oxidase activation, and upregulation of PI3K/Akt and hypoxia-inducible factor 1 alpha (HIF-1α) signaling. We have also found that ethanol increases the arsenic-induced expression and secretion of angiogenic signaling molecules such as vascular endothelial growth factor, which further confirmed the above observation. Antioxidant enzymes inhibited arsenic/ethanol-induced tumor angiogenesis, demonstrating that the responsive signaling pathways of coexposure to arsenic and ethanol are related to ROS generation. We conclude that ethanol is able to enhance arsenic-induced tumor angiogenesis in colorectal cancer cells via the HIF-1α pathway. These results indicate that alcohol consumption should be taken into consideration in the investigation of arsenic-induced carcinogenesis in arsenic-exposed populations.
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Affiliation(s)
- Lei Wang
- Graduate Center for Toxicology, College of Medicine, University of Kentucky, Lexington, Kentucky 40536, USA
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Xue Y, Wang M, Zhong D, Tong N, Chu H, Sheng X, Zhang Z. ADH1C Ile350Val polymorphism and cancer risk: evidence from 35 case-control studies. PLoS One 2012; 7:e37227. [PMID: 22675424 PMCID: PMC3366713 DOI: 10.1371/journal.pone.0037227] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Accepted: 04/16/2012] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Alcohol dehydrogenase 1C (ADH1C) is the key enzyme catalyze oxidation of alcohol to acetaldehyde, which plays vital roles in the etiology of various cancer. To date, studies investigated the association between a functional polymorphism in ADH1C, Ile350Val (rs698), and risk of cancer have shown inclusive results. METHODS A meta-analysis based on 35 case-control studies was performed to address this issue. Odds ratios (OR) with 95% confidence intervals (CIs) were used to assess the association. The statistical heterogeneity across studies was examined with χ2-based Q-test. RESULTS Overall, no significant associations between ADH1C Ile350Val polymorphism and cancer risk were observed in any genetic models (P>0.05). In the stratified analyses, there was a significantly increased cancer risk among African (Val/Val vs. Ile/Ile OR = 2.19, 95% CI = 1.29-3.73, P(heterogeneity) = 0.989; Ile/Val + Val/Val vs. Ile/Ile: OR = 1.79, 95%CI = 1.18-2.71, P(heterogeneity) = 0.761; Val/Val vs. Ile/Val + Ile/Ile: OR = 1.92, 95% CI = 1.16-3.17, P(heterogeneity) = 0.981) and Asian (Ile/Val vs. Ile/Ile: OR = 1.58, 95% CI = 1.32-1.90, P(heterogeneity) = 0.375; Val/Val vs. Ile/Ile: OR = 3.84, 95% CI = 1.74-8.49, P(heterogeneity) = 0.160; Ile/Val + Val/Val vs. Ile/Ile: OR = 1.65, 95% CI = 1.38-1.96, P(heterogeneity) = 0.330; Val/Val vs. Ile/Val + Ile/Ile: OR = 3.54, 95% CI = 1.62-7.75, P(heterogeneity) = 0.154) studies. CONCLUSIONS The results indicate that ADH1C Ile350Val polymorphism may contribute to cancer risk among Africans and Asians. Additional comprehensive system analyses are required to validate this association combined with other related polymorphisms.
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Affiliation(s)
- Yao Xue
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China
- Department of Molecular & Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Meilin Wang
- Department of Molecular & Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
- Department of Occupational Medicine and Environmental Health, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
| | - Dongyan Zhong
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China
- Department of Molecular & Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Na Tong
- Department of Occupational Medicine and Environmental Health, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
| | - Haiyan Chu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China
- Department of Molecular & Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xiaojing Sheng
- Department of Molecular & Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
- Department of Occupational Medicine and Environmental Health, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
| | - Zhengdong Zhang
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China
- Department of Molecular & Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
- Department of Occupational Medicine and Environmental Health, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China
- * E-mail:
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D'Souza Y, Dowlatshahi S, Bennett BM. Changes in aldehyde dehydrogenase 2 expression in rat blood vessels during glyceryl trinitrate tolerance development and reversal. Br J Pharmacol 2012; 164:632-43. [PMID: 21506955 DOI: 10.1111/j.1476-5381.2011.01448.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND AND PURPOSE Recent studies have suggested an essential role for aldehyde dehydrogenase 2 (ALDH2) in the bioactivation of organic nitrates such as glyceryl trinitrate (GTN). In the present study, we utilized an in vivo GTN tolerance model to further investigate the role of ALDH2 in GTN bioactivation and tolerance. EXPERIMENTAL APPROACH We assessed changes in aortic ALDH activity, and in ALDH2 protein expression in various rat blood vessels (aorta, vena cava, femoral artery and femoral vein) during continuous GTN exposure (0.4 mg·h⁻¹ for 6, 12, 24 or 48 h) or after a 1-, 3- or 5-day drug-free period following a 48 h exposure to GTN, in relation to changes in vasodilator responses to GTN and in vascular GTN biotransformation. KEY RESULTS A decrease was observed in both ALDH2 protein expression (80% in tolerant veins and 30% in tolerant arteries after 48 h exposure to GTN) and aortic ALDH activity, concomitant with decreased vasodilator responses to GTN and decreased aortic GTN biotransformation. However, after a 24 h drug-free period following 48 h of GTN exposure, vasodilator responses to GTN and aortic GTN biotransformation activity had returned to control values, whereas vascular ALDH2 expression and aortic ALDH activity were still significantly depressed, and remained so for 3-5 days following cessation of GTN exposure. CONCLUSIONS AND IMPLICATIONS The dissociation of reduced ALDH activity and ALDH2 expression from the duration of the impaired vasodilator and biotransformation responses to GTN in nitrate-tolerant blood vessels, suggests that factors other than changes in ALDH2-mediated GTN bioactivation contribute to nitrate tolerance.
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Affiliation(s)
- Y D'Souza
- Department of Pharmacology and Toxicology, Faculty of Health Sciences, Queen's University, Kingston, Ontario, Canada
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Hwang PH, Lian L, Zavras AI. Alcohol intake and folate antagonism via CYP2E1 and ALDH1: effects on oral carcinogenesis. Med Hypotheses 2011; 78:197-202. [PMID: 22100631 DOI: 10.1016/j.mehy.2011.10.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Revised: 10/15/2011] [Accepted: 10/21/2011] [Indexed: 12/18/2022]
Abstract
The interaction of folate and alcohol consumption has been shown to have an antagonistic effect on the risk of oral cancer. Studies have demonstrated that increased intake of folate decreases the risk of oral cancer, while greater alcohol consumption has an opposite effect. However, what is poorly understood is the biological interaction of these two dietary factors in relation to carcinogenesis. We hypothesize that cytochrome P450 2E1 (CYP2E1) and the family of aldehyde dehydrogenase 1 (ALDH1) enzymes may play a causal role in the occurrence of oral cancer. Chronic and high alcohol use has been implicated in the induction of CYP2E1, which oxidizes ethanol to acetaldehyde. Acetaldehyde is a known carcinogen. As the first metabolite of ethanol, it has been shown to interfere with DNA methylation, synthesis and repair, as well as bind to protein and DNA to form stable adducts, which lead to the eventual formation of damaged DNA and cell proliferation. Studies using liver cells have demonstrated that S-adenosyl methionine (SAM), which is a product of folate metabolism, regulates the expression and catalytic activity of CYP2E1. Our first hypothesis is that as increased levels of folate lead to higher concentrations of SAM, SAM antagonizes the expression of CYP2E1, which results in decreased conversion of ethanol into acetaldehyde. Thus, the lower levels of acetaldehyde may lower risk of oral cancer. There are also two enzymes within the ALDH1 family that play an important role both in ethanol metabolism and the folate one-carbon pathway. The first, ALDH1A1, converts acetaldehyde into its non-carcinogenic byproduct, acetate, as part of the second step in the ethanol metabolism pathway. The second, ALDH1L1, also known as FDH, is required for DNA nucleotide biosynthesis, and is upregulated at high concentrations of folate. ALDH1L1 appears to be a chief regulator of cellular metabolism as it is strongly downregulated at certain physiological and pathological conditions, while its upregulation can produce drastic antiproliferative effects. ALDH1 has three known response elements that regulate gene expression (NF-Y, C/EBPβ, and RARα). Our second hypothesis is that folate interacts with one of these response elements to upregulate ALDH1A1 and ALDH1L1 expression in order to decrease acetaldehyde concentrations and promote DNA stability, thereby decreasing cancer susceptibility. Conducting future metabolic and biochemical human studies in order to understand this biological mechanism will serve to support evidence from epidemiologic studies, and ultimately promote the intake of folate to at-risk populations.
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Affiliation(s)
- Phillip H Hwang
- Division of Oral Epidemiology and Biostatistics, Columbia College of Dental Medicine, 622 West 168th Street, Suite PH17-306R, New York, NY 10032, USA
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Yan Y, Yang JY, Mou YH, Wang LH, Zhou YN, Wu CF. Differences in the activities of resveratrol and ascorbic acid in protection of ethanol-induced oxidative DNA damage in human peripheral lymphocytes. Food Chem Toxicol 2011; 50:168-74. [PMID: 22056336 DOI: 10.1016/j.fct.2011.10.046] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 08/16/2011] [Accepted: 10/07/2011] [Indexed: 01/24/2023]
Abstract
Previous studies have shown that ethanol induces oxidative DNA damage in human peripheral lymphocytes. In the present study, protective effect of resveratrol and ascorbic acid on ethanol-induced oxidative DNA damage in human peripheral lymphocytes in vitro were comparatively investigated. Pretreatments with resveratrol at 5, 25, and 50μM, which were in the concentration range of in vitro research, significantly inhibited ethanol-induced oxidative DNA damage in 24h, whereas ascorbic acid showed such DNA protective activity only in 1h. Further study showed that both compounds could directly scavenge hydroxyl radical produced during ethanol metabolism. Resveratrol significantly inhibited ethanol metabolism by regulating alcohol dehydrogenase 1B (ADH1B) and acetaldehyde dehydrogenase 2 (ALDH2) mRNA expressions. Moreover, resveratrol also activated the base excision repair (BER) system in mRNA and protein levels in DNA auto-repair process. However, ascorbic acid showed no effect on ethanol metabolic pathway and BER system. Thus, the present study provided the first evidence that even though both resveratrol and ascorbic acid are anti-oxidants, they possessed differential mechanisms of action in protection against ethanol-induced oxidative DNA damage in human peripheral lymphocytes.
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Affiliation(s)
- Yu Yan
- Department of Pharmacology, Shenyang Pharmaceutical University, 110016 Shenyang, People's Republic of China
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40
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Huang HC, Wang KL, Huang ST, Lin HY, Lin CM. Development of a sensitive long-wavelength fluorogenic probe for nitroreductase: a new fluorimetric indictor for analyte determination by dehydrogenase-coupled biosensors. Biosens Bioelectron 2011; 26:3511-6. [PMID: 21398106 DOI: 10.1016/j.bios.2011.01.036] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 01/13/2011] [Accepted: 01/31/2011] [Indexed: 11/16/2022]
Abstract
Nitroreductase (NTR) is a flavin-containing enzyme that uses NADH as the electron source to reduce nitroaromatic compounds to the corresponding amines. Previous studies have shown that nitroreductase-targeted latent fluorophores exhibit low solubility in the aqueous media and fluoresce at lower wavelengths upon uncloaking, thus limiting their effective applications. Here, we have prepared a new switch-on long-wavelength latent fluorogenic substrate, NTRLF (4), for NTR. In the presence of NADH, NTR catalyzes the reduction of the nitroaromatic moiety in NTRLF (4), followed by the cascade reaction, 1,6-rearrangement-elimination reaction, cyclic urea formation, and concomitant ejects a long-wavelength fluorescence coumarin (8). However, this reaction was inhibited in the presence of nitroaromatic analogues. The fluorescence signal generated by the cascade reaction was specific and insensitive to various reductants. Accordingly, we propose that NTRLF and NTR in the presences of NADH constitute a useful switch-off high-throughput fluorescence sensor for screening nitroaromatic compounds. Furthermore, NTRLF in the NTR-coupled 3-hydroxybutyrate dehydrogenase and aldehyde dehydrogenase assay reactions was a sensitive fluorimetric indicator for the quantitatively measurement of 3-hydroxybutyrate and propionaldehyde, respectively within micromolar range. Our novel NTRLF and NTR-coupled dehydrogenase assay platform may thus be effectively applied for the quantitative estimation of a broad range of analytes.
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Affiliation(s)
- Hun-Chung Huang
- Institute of Biotechnology, National Taipei University of Technology, Taipei, Taiwan
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Setshedi M, Wands JR, Monte SMDL. Acetaldehyde adducts in alcoholic liver disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2010; 3:178-85. [PMID: 20716942 DOI: 10.4161/oxim.3.3.12288] [Citation(s) in RCA: 213] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chronic alcohol abuse causes liver disease that progresses from simple steatosis through stages of steatohepatitis, fibrosis, cirrhosis, and eventually hepatic failure. In addition, chronic alcoholic liver disease (ALD), with or without cirrhosis, increases risk for hepatocellular carcinoma (HCC). Acetaldehyde, a major toxic metabolite, is one of the principal culprits mediating fibrogenic and mutagenic effects of alcohol in the liver. Mechanistically, acetaldehyde promotes adduct formation, leading to functional impairments of key proteins, including enzymes, as well as DNA damage, which promotes mutagenesis. Why certain individuals who heavily abuse alcohol, develop HCC (7.2-15%) versus cirrhosis (15-20%) is not known, but genetics and co-existing viral infection are considered pathogenic factors. Moreover, adverse effects of acetaldehyde on the cardiovascular system and hematologic systems leading to ischemia, heart failure, and coagulation disorders, can exacerbate hepatic injury and increase risk for liver failure. Herein, we review the role of acetaldehyde adducts in the pathogenesis of chronic ALD and HCC.
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Affiliation(s)
- Mashiko Setshedi
- Department of Medicine, Rhode Island Hospital and the Alpert Medical School of Brown University, Providence, RI, USA
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Formation of acetaldehyde-derived DNA adducts due to alcohol exposure. Chem Biol Interact 2010; 188:367-75. [PMID: 20813101 DOI: 10.1016/j.cbi.2010.08.005] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Revised: 08/18/2010] [Accepted: 08/25/2010] [Indexed: 12/12/2022]
Abstract
Epidemiological studies have identified chronic alcohol consumption as a significant risk factor for cancers of the upper aerodigestive tract, including the oral cavity, pharynx, larynx and esophagus, and for cancer of the liver. Ingested ethanol is mainly oxidized by the enzymes alcohol dehydrogenase (ADH), cytochrome P-450 2E1 (CYP2E1), and catalase to form acetaldehyde, which is subsequently oxidized by aldehyde dehydrogenase 2 (ALDH2) to produce acetate. Polymorphisms of the genes which encode enzymes for ethanol metabolism affect the ethanol/acetaldehyde oxidizing capacity. ADH1B*2 allele (ADH1B, one of the enzyme in ADH family) is commonly observed in Asian population, has much higher enzymatic activity than ADH1B*1 allele. Otherwise, approximately 40% of Japanese have single nucleotide polymorphisms (SNPs) of the ALDH2 gene. The ALDH2 *2 allele encodes a protein with an amino acid change from glutamate to lysine (derived from the ALDH2*1 allele) and devoid of enzymatic activity. Neither the homozygote (ALDH2*2/*2) nor heterozygote (ALDH2*1/*2) is able to metabolize acetaldehyde promptly. Acetaldehyde is a genotoxic compound that reacts with DNA to form primarily a Schiff base N(2)-ethylidene-2'-deoxyguanosine (N(2)-ethylidene-dG) adduct, which may be converted by reducing agents to N(2)-ethyl-2'-deoxyguanosine (N(2)-ethyl-dG) in vivo, and strongly blocked translesion DNA synthesis. Several studies have demonstrated a relationship between ALDH2 genotypes and the development of certain types of cancer. On the other hand, the drinking of alcohol induces the expression of CYP2E1, resulting in an increase in reactive oxygen species (ROS) and oxidative DNA damage. This review covers the combined effects of alcohol and ALDH2 polymorphisms on cancer risk. Studies show that ALDH2*1/*2 heterozygotes who habitually consume alcohol have higher rates of cancer than ALDH2*1/*1 homozygotes. Moreover, they support that chronic alcohol consumption contributes to formation of various DNA adducts. Although some DNA adducts formation is demonstrated to be an initiation step of carcinogenesis, it is still unclear that whether these alcohol-related DNA adducts are true factors or initiators of cancer. Future studies are needed to better characterize and to validate the roles of these DNA adducts in human study.
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Testino G, Borro P. Alcohol and gastrointestinal oncology. World J Gastrointest Oncol 2010; 2:322-5. [PMID: 21160893 PMCID: PMC2999678 DOI: 10.4251/wjgo.v2.i8.322] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Revised: 07/30/2010] [Accepted: 08/06/2010] [Indexed: 02/05/2023] Open
Abstract
Results from several large epidemiological studies have firmly established that alcohol is associated with elevated cancer incidence and mortality. Recently the International Agency for Cancer Research stated that acetaldehyde associated with alcoholic beverages is carcinogenic to humans and confirmed the Group 1 classification of alcohol consumption and of ethanol in alcoholic beverages. Alcohol consumption causes cancers of the oral cavity, pharynx, larynx, oesophagus, colorectum, liver, pancreas and female breast. The frequency of most alcohol-induced diseases increases in a linear fashion as intake increases: oral, oesophagus and colon cancer fall into this pattern. Very little is known about safe margins of alcohol consumption. US Department of Health and Human Services suggest a maximum of 28 g of alcohol a day in man and half of this in women.
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Affiliation(s)
- Gianni Testino
- Gianni Testino, Paolo Borro, Department of Specialist Medicine, S. Martino Hospital, 16136 Genova, Italy
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Moy KA, Fan Y, Wang R, Gao YT, Yu MC, Yuan JM. Alcohol and tobacco use in relation to gastric cancer: a prospective study of men in Shanghai, China. Cancer Epidemiol Biomarkers Prev 2010; 19:2287-97. [PMID: 20699372 DOI: 10.1158/1055-9965.epi-10-0362] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Epidemiologic findings of tobacco and alcohol use in relation to gastric cancer are inconsistent. Well-designed prospective studies examining their relationship are sparse. METHODS The association between cigarette smoking/alcohol intake and gastric cancer risk was examined in a population-based prospective cohort of 18,244 middle-aged and older men in Shanghai, China, who were enrolled in the study during 1986-1989. After up to 20 years of follow-up, 391 incident gastric cancer cases were identified. Cox proportional hazards regression models were used to estimate hazard ratios (HR) and corresponding 95% confidence intervals (95% CI). RESULTS Ever smokers experienced a statistically significant increased risk of gastric cancer (HR, 1.59; 95% CI, 1.27-1.99) compared with nonsmokers after adjustment for alcohol intake and other confounders. Among nondrinkers, smokers experienced 80% increased risk of gastric cancer (HR, 1.81; 95% CI,1.36, 2.41). Conversely, heavy drinkers experienced a statistically significant increase in risk of gastric cancer (HR, 1.46; 95% CI, 1.05-2.04) among all subjects and a statistically nonsignificant 80% increased risk among never smokers. Further adjustment for Helicobacter pylori serology, serum levels of beta-carotene and vitamin C, and urinary level of total isothiocyanates in combination with glutathione S-transferase (GST) M1 and GSTT1 genotypes did not materially change the associations between smoking/alcohol consumption and gastric cancer risk. CONCLUSIONS These results suggest that cigarette smoking and alcohol consumption may exert independent effects on the development of gastric cancer in this high-risk population. IMPACT Modification of these lifestyle choices may reduce the incidence of gastric cancer.
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Affiliation(s)
- Kristin A Moy
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Masonic Cancer Center, Minneapolis, Minnesota 55455, USA.
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Park JY, Mitrou PN, Keen J, Dahm CC, Gay LJ, Luben RN, McTaggart A, Khaw KT, Ball RY, Arends MJ, Rodwell SA. Lifestyle factors and p53 mutation patterns in colorectal cancer patients in the EPIC-Norfolk study. Mutagenesis 2010; 25:351-8. [PMID: 20228093 DOI: 10.1093/mutage/geq012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The tumour suppressor p53 is one of the most commonly altered genes in colorectal cancer (CRC) development. Genetic alterations in p53 may therefore be associated with postulated lifestyle risk factors for CRC, such as red meat consumption. In the European Prospective Investigation into Cancer and Nutrition-Norfolk study, we examined whether detailed estimates of dietary and lifestyle factors measured at baseline related to later development of p53 mutations in CRCs. After 10-year follow-up, there were 185 incident CRCs of which 34% had somatic p53 mutations (p53+). We observed significantly higher mean intakes of alcohol, total meat and red meat, in the group with p53 mutations and advanced Dukes' stage disease (daily alcohol intake was 7 and 12 g for p53- and p53+ cases, respectively, P = 0.04; daily total meat intake was 69 and 100 g for p53- and p53+ cases, respectively, P = 0.03 and daily red meat intake was 39 and 75 g for p53- and p53+ cases, respectively, P = 0.01). Each 50 g/day increment in total meat intake was associated with having p53 mutations in cases with advanced Dukes' stages [odds ratio (OR): 3.43, 95% confidence interval (CI): 1.47-7.96]. Similarly, each 50 g/day increment in red meat intake was also significantly associated with having consistent p53 mutations in cases with advanced Dukes' stages (OR: 2.42, 95% CI: 1.18-4.96). These effects of total meat or red meat intake and advanced Dukes' stages were independent of age, sex, body mass index, smoking and alcohol intake. Furthermore, P values for interaction between daily total meat or red meat intake and Dukes' stages were statistically significant in multivariable models (Pinteraction < 0.001). Our results suggest that p53 mutations accelerate progression of CRC to advanced Dukes' stage in association with higher meat especially red meat intakes.
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Affiliation(s)
- Jin Young Park
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
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Lee CH, Wu DC, Wu IC, Goan YG, Lee JM, Chou SH, Chan TF, Huang HL, Hung YH, Huang MC, Lai TC, Wang TN, Lan CCE, Tsai S, Lin WY, Wu MT. Genetic modulation of ADH1B and ALDH2 polymorphisms with regard to alcohol and tobacco consumption for younger aged esophageal squamous cell carcinoma diagnosis. Int J Cancer 2009; 125:1134-42. [PMID: 19449376 DOI: 10.1002/ijc.24357] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Genetic variants in alcohol dehydrogenase-1B (ADH1B) and aldehyde dehydrogenase-2 (ALDH2) genes modulate acetaldehyde removal upon alcohol ingestion. Although these genetic vulnerabilities have been linked to higher esophageal squamous cell carcinoma (ESCC) risks, it is unclear whether they also determine the time of malignancy presentation. The purpose of this investigation was to unravel genotoxic effects of the two alcohol-metabolizing genes with regard to alcohol and tobacco consumption on the age at ESCC diagnosis and tumor dissemination. ADH1B/ALDH2 genotyping was performed on lymphocyte DNA specimens taken from 406 consecutively registered incident patients with pathology-proven ESCC. To fully utilize individual genetic and survival information, survival analyses and gene-longevity applied approaches were introduced. Among heavy drinkers, the ADH1B Arg/Arg (55 years) and ALDH2 Glu/Lys genotypes (54 years) were found to confer a 15 and 16 years earlier carcinoma diagnosed age than His/His and Glu/Glu nondrinkers (both 70 years), respectively. For drinkers, 1-year age advancement was, separately, associated with a 0.977 and 0.953-fold stepwise reduced likelihood of being ADH1B Arg homozygote and ALDH2 Lys variant. Noticeably elevated hazard-ratio (HR) for drinkers of ADH1B slow-form genotype and ALDH2 inactive-form allele were identified in smokers (HR = 2.3-2.6), but no in nonsmokers. In smokers, appreciably higher cumulative cancer onset risks were correspondingly recognized from the age of 45 and 49 upward among any + Lys allele and Arg/Arg + Glu/Glu combined-ADH1B/ALDH2-genotype drinkers than nondrinkers. In conclusion, consumption of tobacco and alcohol, coupled with genetic susceptibilities associated with acetaldehyde elimination, as modulated by ADH1B and ALDH2 genotypes, determines a substantial magnitude of tumorigenetic effect on earlier age ESCC diagnosis.
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Affiliation(s)
- Chien-Hung Lee
- Department of Public Health, Kaohsiung Medical University, Taiwan
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Kalapatapu RK, Chambers R. Novel Objective Biomarkers of Alcohol Use: Potential Diagnostic and Treatment Management Tools in Dual Diagnosis Care. J Dual Diagn 2009; 5:57-82. [PMID: 20582236 PMCID: PMC2891542 DOI: 10.1080/15504260802628684] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Alcohol use disorders are highly prevalent conditions that generate a large fraction of the total public health burden. These disorders are concentrated in mentally ill populations, in which reliability of self-reporting of alcohol consumption may be especially compromised. The application of objective biomarkers for alcohol use may therefore play an important role in these patients. This article provides a description and comparative overview of traditional versus novel biomarkers of alcohol consumption. Greater professional familiarity with and use of novel biomarkers as diagnostic and treatment management tools may enhance clinical standards and research on alcohol use in patients with a dual diagnosis.
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Affiliation(s)
- Raj K Kalapatapu
- Geriatric Psychiatry Fellowship, Mount Sinai School of Medicine, New York, New York, USA
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