1
|
Aslanov H, Bayramov B, Reissfelder C, Abdullayeva S, Mammadova Z, Aliyev F, Keese M, Hajibabazade J, Yagublu V. MTHFR Gene C677T Polymorphism (rs1801133) and Susceptibility to Colorectal Polyps in an Azerbaijani Population. J Clin Med 2023; 13:219. [PMID: 38202226 PMCID: PMC10779477 DOI: 10.3390/jcm13010219] [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: 12/01/2023] [Revised: 12/26/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Understanding the relationships between the methylenetetrahydrofolate reductase (MTHFR) gene polymorphism, colorectal polyps, and CRC risk can aid in advancing personalized medicine approaches in CRC prevention. The aim of the current study is to identify the association of C677T polymorphism of the MTHFR gene with the risk of colorectal polyps in the Azerbaijani population. METHODS This study included 125 patients with colon polyps and 155 healthy individuals as a control group. DNA was extracted from venous blood samples obtained from patients and healthy individuals, and the results were analyzed through polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and agarose gel electrophoresis. RESULTS Wild-type, heterozygote, and homozygous mutant were revealed within 69 (55.2%), 49 (39.2%), and 7 (5.6%) patients and within 100 (64.5%), 45 (29%), and 10 (6.5%) healthy controls, respectively. However, no significant statistical associations were observed between CT and TT genotypes, dominant (CC vs. CT + TT) and recessive (CC + CT vs. TT) models, and the mutant T allele and disease risk. There were also no significant differences between patients and controls regarding age, sex, smoking and alcohol use. CONCLUSION Our research did not reveal any significant association between the MTHFR C677T polymorphism and susceptibility to colorectal polyps in the Azerbaijan population.
Collapse
Affiliation(s)
- Hazi Aslanov
- Department of Surgery, Scientific Center of Surgery after academician M.A.Topchubashov, Baku AZ1122, Azerbaijan;
| | - Bayram Bayramov
- Laboratory of Human Genetics, Genetic Resources Institute of Ministry of Science and Education, Baku AZ1106, Azerbaijan; (B.B.); (Z.M.)
- Department of Natural Sciences, Western Caspian University, Baku AZ1001, Azerbaijan
| | - Christoph Reissfelder
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany;
| | - Shams Abdullayeva
- Department of Neurology, Westpfalz-Klinikum, 67655 Kaiserslautern, Germany;
| | - Zeynab Mammadova
- Laboratory of Human Genetics, Genetic Resources Institute of Ministry of Science and Education, Baku AZ1106, Azerbaijan; (B.B.); (Z.M.)
| | - Fikrat Aliyev
- Department of Pathomorphology, Scientific Center of Surgery after academician M.A.Topchubashov, Baku AZ1122, Azerbaijan;
| | - Michael Keese
- Department of Vascular Surgery, Theresienkrankenhaus, 68165 Mannheim, Germany;
| | - Javahir Hajibabazade
- Carver College of Medicine, University of Iowa, Bowen Science Building, 51 Newton, Road, Iowa City, IA 52242-1009, USA
| | - Vugar Yagublu
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany;
| |
Collapse
|
2
|
Wiik MU, Negline M, Beisvåg V, Clapham M, Holliday E, Dueñas N, Brunet J, Pineda M, Bonifaci N, Aretz S, Klinkhammer H, Spier I, Perne C, Mayr A, Valle L, Lubinski J, Sjursen W, Scott RJ, Talseth-Palmer BA. MTHFR C677T and A1298C polymorphism's effect on risk of colorectal cancer in Lynch syndrome. Sci Rep 2023; 13:18783. [PMID: 37914736 PMCID: PMC10620134 DOI: 10.1038/s41598-023-44120-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 10/04/2023] [Indexed: 11/03/2023] Open
Abstract
Lynch syndrome (LS) is characterised by an increased risk of developing colorectal cancer (CRC) and other extracolonic epithelial cancers. It is caused by pathogenic germline variants in DNA mismatch repair (MMR) genes or the EPCAM gene, leading to a less functional DNA MMR system. Individuals diagnosed with LS (LS individuals) have a 10-80% lifetime risk of developing cancer. However, there is considerable variability in the age of cancer onset, which cannot be attributed to the specific MMR gene or variant alone. It is speculated that multiple genetic and environmental factors contribute to this variability, including two single nucleotide polymorphisms (SNPs) in the methylenetetrahydrofolate reductase (MTHFR) gene: C677T (rs1801133) and A1298C (rs1801131). By decreasing MTHFR activity, these SNPs theoretically reduce the silencing of DNA repair genes and increase the availability of nucleotides for DNA synthesis and repair, thereby protecting against early-onset cancer in LS. We investigated the effect of these SNPs on LS disease expression in 2,723 LS individuals from Australia, Poland, Germany, Norway and Spain. The association between age at cancer onset and SNP genotype (risk of cancer) was estimated using Cox regression adjusted for gender, country and affected MMR gene. For A1298C (rs1801131), both the AC and CC genotypes were significantly associated with a reduced risk of developing CRC compared to the AA genotype, but no association was seen for C677T (rs1801133). However, an aggregated effect of protective alleles was seen when combining the alleles from the two SNPs, especially for LS individuals carrying 1 and 2 alleles. For individuals with germline pathogenic variants in MLH1, the CC genotype of A1298C was estimated to reduce the risk of CRC significantly by 39% (HR = 0.61, 95% CI 0.42, 0.89, p = 0.011), while for individuals with pathogenic germline MSH2 variants, the AC genotype (compared to AA) was estimated to reduce the risk of CRC by 26% (HR = 0.66, 95% CI 0.53, 0.83, p = 0.01). In comparison, no association was observed for C677T (rs1801133). In conclusion, our study suggests that combining the MMR gene information with the MTHFR genotype, including the aggregated effect of protective alleles, could be useful in developing an algorithm that estimates the risk of CRC in LS individuals.
Collapse
Affiliation(s)
- Mariann Unhjem Wiik
- Research Unit, Ålesund Hospital, Møre and Romsdal Hospital Trust, Ålesund, Norway
- Department of Medicine, Ålesund Hospital, Møre and Romsdal Hospital Trust, Ålesund, Norway
- Department of Biological Sciences, Faculty of Natural Sciences, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Mia Negline
- School of Biomedical Science and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia
| | - Vidar Beisvåg
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, 7491, Trondheim, Norway
- St. Olav's University Hospital, Central Staff, 7006, Trondheim, Norway
| | - Matthew Clapham
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia
| | - Elizabeth Holliday
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia
| | - Nuria Dueñas
- Hereditary Cancer Program, Catalan Institute of Oncology, Hospitalet de Llobregat, Barcelona, Spain
- Oncobell Program, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Joan Brunet
- Hereditary Cancer Program, Catalan Institute of Oncology, Hospitalet de Llobregat, Barcelona, Spain
- Oncobell Program, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Marta Pineda
- Hereditary Cancer Program, Catalan Institute of Oncology, Hospitalet de Llobregat, Barcelona, Spain
- Oncobell Program, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Nuria Bonifaci
- Hereditary Cancer Program, Catalan Institute of Oncology, Hospitalet de Llobregat, Barcelona, Spain
- Oncobell Program, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Stefan Aretz
- Institute of Human Genetics, Medical Faculty, University of Bonn, Bonn, Germany
- Center for Hereditary Tumor Syndromes, University Hospital Bonn, Bonn, Germany
| | - Hannah Klinkhammer
- Institute for Medical Biometry, Informatics and Epidemiology, University Hospital Bonn, Bonn, Germany
- Institute for Genomic Statistics and Bioinformatics, University Hospital Bonn, Bonn, Germany
| | - Isabel Spier
- Institute of Human Genetics, Medical Faculty, University of Bonn, Bonn, Germany
- Center for Hereditary Tumor Syndromes, University Hospital Bonn, Bonn, Germany
| | - Claudia Perne
- Institute of Human Genetics, Medical Faculty, University of Bonn, Bonn, Germany
| | - Andreas Mayr
- Institute for Medical Biometry, Informatics and Epidemiology, University Hospital Bonn, Bonn, Germany
| | - Laura Valle
- Hereditary Cancer Program, Catalan Institute of Oncology, Hospitalet de Llobregat, Barcelona, Spain
- Oncobell Program, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Jan Lubinski
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | - Wenche Sjursen
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, 7491, Trondheim, Norway
- Department of Medical Genetics, St Olavs University Hospital, Trondheim, Norway
| | - Rodney J Scott
- School of Biomedical Science and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia
- Department of Molecular Genetics, NSW Health Pathology, John Hunter Hospital, Newcastle, NSW, Australia
| | - Bente A Talseth-Palmer
- Research Unit, Ålesund Hospital, Møre and Romsdal Hospital Trust, Ålesund, Norway.
- School of Biomedical Science and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia.
- NSW Health Pathology, Newcastle, NSW, Australia.
| |
Collapse
|
3
|
Arrait EM, Al-Ghafari AB, Al Doghaither HA. Genetic Variants in the Mitochondrial Thymidylate Biosynthesis Pathway Increase Colorectal Cancer Risk. Curr Oncol 2023; 30:8039-8053. [PMID: 37754498 PMCID: PMC10529222 DOI: 10.3390/curroncol30090583] [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: 05/19/2023] [Revised: 08/27/2023] [Accepted: 08/29/2023] [Indexed: 09/28/2023] Open
Abstract
We assess the contributions of genetic variants for the enzymes involved in capecitabine metabolism to colorectal cancer (CRC) development risk. In this case-control study, DNA samples were collected from 66 patients (King Abdulaziz University Hospital) and 65 controls (King Fahad General Hospital) between April and November 2022 to be used in PCR-RFLP. The chi-square (χ2) test at a significance level of p ˂ 0.05 was used to estimate genotype and allele frequencies. The Lys27Gln variant of cytidine deaminase (CDA) showed a risk ratio (RR) of 1.47 for heterozygous (AC) carriers, with genotype distributions for patients (χ2 = 1.97) and controls (χ2 = 14.7). Homozygous (AA) Ala70Thr carriers demonstrated a three-fold higher risk, with genotype distributions for patients (χ2 = 3.85) and controls (χ2 = 4.23). Genotype distributions of the 5,10-methylenetetrahydrofolate reductase (MTHFR) C677T variant for patients were (χ2 = 22.43) and for controls were (χ2 = 0.07); for the MTHFR A1298C variant, they were (χ2 = 54.44) for patients and (χ2 = 4.58) for controls. Heterozygous (AC) carriers of the A1298C variant demonstrated highly significant protection against CRC development (RR = 0.2, p = 0.001), while a two-fold higher risk for CRC was estimated for homozygous genotype (CC) carriers. In conclusion, the heterozygous genotype of CDA Lys27Gln, the homozygous genotype of CDA Ala70Thr, and the homozygous genotype of MTHFR A1298C were associated with CRC development risk. The heterozygous genotype of MTHFR A1298C variant provided highly significant protection against CRC development. Further examinations using a larger population size are needed to reliably confirm our findings.
Collapse
Affiliation(s)
- Entesar M Arrait
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Ayat B Al-Ghafari
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 22252, Saudi Arabia
- Cancer and Mutagenesis Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 22252, Saudi Arabia
| | - Huda A Al Doghaither
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| |
Collapse
|
4
|
Mroczkowski P, Dziki Ł, Vosikova T, Otto R, Merecz-Sadowska A, Zajdel R, Zajdel K, Lippert H, Jannasch O. Rectal Cancer: Are 12 Lymph Nodes the Limit? Cancers (Basel) 2023; 15:3447. [PMID: 37444557 DOI: 10.3390/cancers15133447] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/18/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
Lymph node dissection is a crucial element of oncologic rectal surgery. Many guidelines regard the removal of at least 12 lymph nodes as the quality criterion in rectal cancer. However, this recommendation remains controversial. This study examines the factors influencing the lymph node yield and the validity of the 12-lymph node limit. Patients with rectal cancer who underwent low anterior resection or abdominoperineal amputation between 2000 and 2010 were analyzed. In total, 20,966 patients from 381 hospitals were included. Less than 12 lymph nodes were found in 20.53% of men and 19.31% of women (p = 0.03). The number of lymph nodes yielded increased significantly from 2000, 2005 and 2010 within the quality assurance program for all procedures. The univariate analysis indicated a significant (p < 0.001) correlation between lymph node yield and gender, age, pre-therapeutic T-stage, risk factors and neoadjuvant therapy. The multivariate analyses found T3 stage, female sex, the presence of at least one risk factor and neoadjuvant therapy to have a significant influence on yield. The probability of finding a positive lymph node was proportional to the number of examined nodes with no plateau. There is a proportional relationship between the number of examined lymph nodes and the probability of finding an infiltrated node. Optimal surgical technique and pathological evaluation of the specimen cannot be replaced by a numeric cut-off value.
Collapse
Affiliation(s)
- Paweł Mroczkowski
- Department for General and Colorectal Surgery, Medical University of Lodz, Pl. Hallera 1, 90-647 Lodz, Poland
- Institute for Quality Assurance in Operative Medicine Ltd., Otto-von-Guericke-University, Leipziger Str. 44, D-39120 Magdeburg, Germany
- Department for Surgery, University Hospital Knappschaftskrankenhaus, Ruhr-University, In der Schornau 23-25, D-44892 Bochum, Germany
| | - Łukasz Dziki
- Department for General and Colorectal Surgery, Medical University of Lodz, Pl. Hallera 1, 90-647 Lodz, Poland
| | - Tereza Vosikova
- Institute for Quality Assurance in Operative Medicine Ltd., Otto-von-Guericke-University, Leipziger Str. 44, D-39120 Magdeburg, Germany
| | - Ronny Otto
- Institute for Quality Assurance in Operative Medicine Ltd., Otto-von-Guericke-University, Leipziger Str. 44, D-39120 Magdeburg, Germany
| | - Anna Merecz-Sadowska
- Department of Economic and Medical Informatics, University of Lodz, 90-214 Lodz, Poland
| | - Radosław Zajdel
- Department of Economic and Medical Informatics, University of Lodz, 90-214 Lodz, Poland
| | - Karolina Zajdel
- Department of Medical Informatics and Statistics, Medical University of Lodz, 90-645 Lodz, Poland
| | - Hans Lippert
- Institute for Quality Assurance in Operative Medicine Ltd., Otto-von-Guericke-University, Leipziger Str. 44, D-39120 Magdeburg, Germany
- Department for General, Visceral and Vascular Surgery, Otto-von-Guericke-University, Leipziger Str. 44, D-39120 Magdeburg, Germany
| | - Olof Jannasch
- Institute for Quality Assurance in Operative Medicine Ltd., Otto-von-Guericke-University, Leipziger Str. 44, D-39120 Magdeburg, Germany
| |
Collapse
|
5
|
Yari A, Meybodi SME, Karam ZM, Samoudi A, Hashemi F, Aalipour M, Abadi MFS, Dabiri S. Association of MTHFR 677C>T and 1298A>C genetic polymorphisms with colorectal cancer: Genotype and haplotype analysis in a Southeast Iranian population. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
6
|
Ghorbani M, Azghandi M, Khayami R, Baharara J, Kerachian MA. Association of MTHFR C677T variant genotype with serum folate and Vit B12 in Iranian patients with colorectal cancer or adenomatous polyps. BMC Med Genomics 2021; 14:246. [PMID: 34645434 PMCID: PMC8513199 DOI: 10.1186/s12920-021-01097-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 10/08/2021] [Indexed: 12/24/2022] Open
Abstract
Background The incidence of colorectal cancer (CRC) has increased during recent years in Iran and other developing countries. Clinical studies suggest that essential folate dietary intake and moderate deficiency of methylenetetrahydrofolate reductase (MTHFR) may protect and reduce the risk of CRC. The present study aimed to investigate the clinical significance of C677T polymorphism within the MTHFR gene and its correlation with the serum folate and Vit B12 in the Iranian population suffering from CRC. Methods Blood samples were taken from 1017 Iranian individuals (517 cases and 500 controls) who were referred for colonoscopy. TaqMan probe assay was performed for C677T MTHFR polymorphism. Sera were fractionated from the blood samples of 43 patients and controls and folate and Vit B12 concentrations were measured by a monobind kit. The correlation of MTHFR polymorphisms and folate/vitamin-B12 with CRC risk was analyzed. Results In the current study, we found the frequency of three different genotypes of MTHFR polymorphism in the Iranian population i.e., CC, CT, and TT, to be 51.31, 26.73, 21.96 and 61, 32.2, 6.8 in case and control groups, respectively. The homozygote genotype of MTHFR rs1801133 polymorphism is associated with an increased risk of CRC by 3.68, 1.42, and 3.74-fold in codominant, dominant, and recessive models respectively (p value < 0.01). Our study revealed that there was no significant difference between the amount of folate and Vit B12 in the case and control groups (p value > 0.05). Conclusions This study revealed that there was no significant difference between the amount of folate and Vit B12 in the case and control groups. Furthermore, our results demonstrated a higher risk association for 677TT and 677TT + C677T genotypes of MTHFR compared with 677CC carriers among CRC patients.
Collapse
Affiliation(s)
- Mahla Ghorbani
- Department of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Marjan Azghandi
- Cancer Genetics Research Unit, Reza Radiotherapy and Oncology Center, Mashhad, Iran.,Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Reza Khayami
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Javad Baharara
- Research Center for Animal Development Applied Biology and Biology Department, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Mohammad Amin Kerachian
- Cancer Genetics Research Unit, Reza Radiotherapy and Oncology Center, Mashhad, Iran. .,Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. .,Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
7
|
Baghad I, Erreguibi D, Boufettal R, Eljai SR, Chihab F, Nadifi S. [Association of methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism and the risk of sporadic colorectal cancer]. Pan Afr Med J 2021; 38:287. [PMID: 34122714 PMCID: PMC8179987 DOI: 10.11604/pamj.2021.38.287.12522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 03/26/2020] [Indexed: 11/16/2022] Open
Abstract
Le cancer colorectal (CCR) est un problème majeur de santé publique dans le monde. Le métabolisme des folates est impliqué dans la synthèse, la réparation et la méthylation de de l´ADN. La méthylènetétrahydrofolate réductase (MTHFR) est une enzyme clé dans le métabolisme folique. Un polymorphisme commun de la MTHFR, le C677T, a été corrélé aux CCR. Cette étude cas témoins a été menée pour analyser l´association entre ce polymorphisme et le risque de CCR sporadique dans une population marocaine. Soixante-seize (76) patients atteints de cancer colorectal sporadique confirmé histologiquement et 182 témoins sans antécédents de cancer ont été recrutés pour cette étude. L´ADN a été isolé à partir de sang périphériques et les génotypes ont été déterminés par PCR-RFLP. Le risque d´association a été estimé par le calcul de l´odds ratio (OR) avec un intervalle de confiance à 95%. La fréquence des génotypes MTHFR chez les patients et les témoins a été de 34.1%CC; 56.6%CT; 9.21%TT et 51,6%CC; 42,8% CT; 6% TT respectivement. Le génotype CT et sa combinaison avec le génotype TT et l´allèle T sont associés à un risque accru de CRC avec un OR de 2.02 (avec un intervalle de confiance (IC) de 95%: 1.14-3.58, p = 0,01), de 2.05 (IC 95%: 1.18-3.58, p = 0.01) et de 1.61 (IC 95%: 1,07-2.40, p = 0,02). Les homozygotes TT n´ont pas été un facteur de protection dans notre étude avec un OR de 2,30 (IC 95%: 0.81-6.52, p = 0,11). Il existe une association statistiquement significative entre le variant MTHFR C677T et le risque de survenue de cancer colorectal sporadique dans la population étudiée.
Collapse
Affiliation(s)
- Imane Baghad
- Laboratoire de Génétique et Pathologie Moléculaire, Faculté de Médecine et Pharmacie, Université Hassan II de Casablanca, Casablanca, Maroc
| | - Driss Erreguibi
- Service de Chirurgie Viscérale Aile III, Centre Hospitalier Universitaire Ibn Rochd, Université Hassan II, Casablanca, Maroc
| | - Rachid Boufettal
- Service de Chirurgie Viscérale Aile III, Centre Hospitalier Universitaire Ibn Rochd, Université Hassan II, Casablanca, Maroc
| | - Saad Rifki Eljai
- Service de Chirurgie Viscérale Aile III, Centre Hospitalier Universitaire Ibn Rochd, Université Hassan II, Casablanca, Maroc
| | - Farid Chihab
- Service de Chirurgie Viscérale Aile III, Centre Hospitalier Universitaire Ibn Rochd, Université Hassan II, Casablanca, Maroc
| | - Sellama Nadifi
- Laboratoire de Génétique et Pathologie Moléculaire, Faculté de Médecine et Pharmacie, Université Hassan II de Casablanca, Casablanca, Maroc
| |
Collapse
|
8
|
Niforou A, Konstantinidou V, Naska A. Genetic Variants Shaping Inter-individual Differences in Response to Dietary Intakes-A Narrative Review of the Case of Vitamins. Front Nutr 2020; 7:558598. [PMID: 33335908 PMCID: PMC7736113 DOI: 10.3389/fnut.2020.558598] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 11/03/2020] [Indexed: 12/17/2022] Open
Abstract
Recent advances in the field of nutrigenetics have provided evidence on how genetic variations can impact the individuals' response to dietary intakes. An objective and reliable assessment of dietary exposures should rely on combinations of methodologies including frequency questionnaires, short-term recalls or records, together with biological samples to evaluate markers of intake or status and to identify genetic susceptibilities. In an attempt to present current knowledge on how genetic fingerprints contribute to an individual's nutritional status, we present a review of current literature describing associations between genetic variants and levels of well-established biomarkers of vitamin status in free-living and generally healthy individuals. Based on the outcomes of candidate gene, genome-wide-association studies and meta-analyses thereof, we have identified several single nucleotide polymorphisms (SNPs) involved in the vitamins' metabolic pathways. Polymorphisms in genes encoding proteins involved in vitamin metabolism and transport are reported to have an impact on vitamin D status; while genetic variants of vitamin D receptor were most frequently associated with health outcomes. Genetic variations that can influence vitamin E status include SNPs involved in its uptake and transport, such as in SCAR-B1 gene, and in lipoprotein metabolism. Variants of the genes encoding the sodium-dependent vitamin C transport proteins are greatly associated with the body's status on vitamin C. Regarding the vitamins of the B-complex, special reference is made to the widely studied variant in the MTHFR gene. Methodological attributes of genetic studies that may limit the comparability and interpretability of the findings are also discussed. Our understanding of how genes affect our responses to nutritional triggers will enhance our capacity to evaluate dietary exposure and design personalized nutrition programs to sustain health and prevent disease.
Collapse
Affiliation(s)
- Aikaterini Niforou
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Androniki Naska
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| |
Collapse
|
9
|
Jalilvand A, Soltanpour MS. Promoter Hypermethylation of Wnt/β-catenin Signaling Pathway Inhibitor WIF-1 Gene and its Association with MTHFR C677T Polymorphism in Patients with Colorectal Cancer. Oman Med J 2020; 35:e131. [PMID: 32607254 PMCID: PMC7315525 DOI: 10.5001/omj.2020.49] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 10/06/2019] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVES Colorectal cancer (CRC) is a common malignancy with a high rate of mortality. The dysregulation of genes involved in the Wnt/β-catenin signaling pathway is a common finding in cancers. Wnt-inhibitory factor-1 (WIF-1) suppresses the Wnt/β-catenin signaling pathway and its inactivation by genetics and epigenetic changes may cause cancer. We investigated the DNA methylation status of the WIF-1 gene in patients with CRC and its interaction with MTHFR C677T polymorphism, a known modifier of methylation reaction. METHODS We investigated 50 cancerous tissues and the adjacent non-cancerous tissue. Genomic DNA was extracted using a commercial kit and was treated by sodium bisulfite. Methylation-specific PCR was used for methylation analysis, and restriction fragment length polymorphism PCR to analyze the C677T polymorphism of the MTHFR gene. RESULTS The frequency of WIF1 promoter DNA methylation was significantly higher in cancerous tissue than adjacent non-cancerous tissue (52.0% vs. 8.0%; p < 0.001). WIF1 promoter DNA methylation status showed a significant association only with tumor location (p = 0.009). Carriers of TT genotype and T allele of MTHFR C677T polymorphism had a significantly higher frequency of unmethylated WIF1 gene than methylated WIF-1 gene in cancerous tissue (p = 0.025 and p = 0.001, respectively). CONCLUSIONS Promoter DNA hypermethylation of the WIF-1 gene is a significant risk factor for CRC development, which was significantly associated with tumor location only. The significant association of TT genotype and T allele of MTHFR C677T polymorphism with unmethylated WIF-1 gene suggests a protective role for this common polymorphism against methylation-induced development of CRC.
Collapse
Affiliation(s)
- Ahmad Jalilvand
- Department of Pathology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mohammad Soleiman Soltanpour
- Department of Medical Laboratory Sciences, School of Paramedical Sciences, Zanjan University of Medical Sciences, Zanjan, Iran
| |
Collapse
|
10
|
Jalilvand A, Soltanpour MS. Investigating the methylation status of DACT2 gene and its association with MTHFR C677T polymorphism in patients with colorectal cancer. MOLECULAR BIOLOGY RESEARCH COMMUNICATIONS 2019; 8:53-58. [PMID: 31531376 DOI: 10.22099/mbrc.2019.33006.1393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
Colorectal cancer (CRC) is one of the common causes of cancer death in Iranian population. Both genetic and epigenetic changes have been implicated in CRC pathogenesis. DACT2 gene as one of the WNT signaling pathway inhibitor was shown to display tumor suppressor activity in many cancers. The aim of present study was to investigate the methylation status of DACT2 gene and its association with methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism in CRC patients. Fifty formalin-fixed paraffin-embedded cancerous and adjacent healthy tissues obtained from CRC patient were investigated. Genomic DNA was isolated using a FFPE commercial DNA extraction kit. The methylation status was evaluated by methylation specific PCR. Genotyping of MTHFR C677T polymorphism was performed using PCR-RFLP technique. Statistical analysis was done by GraphPad Prism 8. Results indicated that the frequency of methylated DACT2 gene was significantly higher in cancerous tissue relative to adjacent healthy tissue (P<0.001). DACT2 gene methylation was significantly more common among carriers of MTHFR 677CC genotype (P=0.035) and significantly less common among carriers of MTHFR 677T allele (P value =0.006). In conclusion the present study identified DACT2 gene methylation as a significant risk factor for CRC development. Moreover, the low frequency of DACT2 gene methylation among carriers of MTHFR 677T allele may confer a protective role for this common polymorphism against CRC risk.
Collapse
Affiliation(s)
- Ahmad Jalilvand
- Department of Pathology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mohammad Soleiman Soltanpour
- Department of Medical Laboratory Sciences, School of Paramedical Sciences, Zanjan University of Medical Sciences, Zanjan, Iran
| |
Collapse
|
11
|
Garcia-Hernandez SC, Meneses-Sanchez P, Porchia LM, Torres-Rasgado E, Pérez-Fuentes R, Gonzalez-Mejia ME. Differential effects of the methylenetetrahydrofolate reductase polymorphisms (C677T and A1298C) on hematological malignancies among Latinos: a meta-analysis. Genet Mol Biol 2019; 42:549-559. [PMID: 31188929 PMCID: PMC6905449 DOI: 10.1590/1678-4685-gmb-2018-0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 12/10/2018] [Indexed: 11/24/2022] Open
Abstract
Our objective was to determine the association between the methylenetetrahydrofolate reductase polymorphisms (C677T and A1298C) and the risk of developing acute lymphoblastic leukemia (ALL), chronic myeloid leukemia (CML), acute myeloid leukemia (AML), and multiple myelomas (MM) in Latinos. PubMed, SCOPUS, EBSCO, LILACS, and other Latin-specific databases were searched for case-control studies that investigated the association between these polymorphisms and hematologic malignancies until November 2017. Genotype distributions were extracted and either fixed-effects or random-effects models were used to calculate the pooled crude odds ratios (ORs) for the heterozygous, homozygous, dominant, recessive, and allelic genetic models. No publication bias was detected by the Begg-Mazumdar’s test and Egger’s test. From 290 publications, we identified 15 studies on the C677T polymorphism and 13 studies on the A1298C polymorphism. We observed a significant decrease in risk for the C677T polymorphism (OR range=0.54-0.75, p<0.01) and a significant increase in risk for the A1298C polymorphism (OR range=1.28-2.52, p<0.05) in developing ALL for all genetic models. No associations were determined for CML, AML, or MM for either polymorphism. This meta-analysis demonstrated that the A1298C polymorphism was associated with an increased risk of developing ALL, whereas the C677T polymorphism was associated with a decreased risk (protective factor) in the Latino population.
Collapse
Affiliation(s)
| | - Perla Meneses-Sanchez
- Departamento de Genética, Facultad de Medicina, Benémerita Universidad Autónoma de Puebla. Puebla, Mexico
| | - Leonardo Martin Porchia
- Laboratorio de Investigación en Fisiopatología de Enfermedades Crónicas, Centro de Investigación Biomédica de Oriente, IMSS, Delegación Puebla. Atlixco, Puebla, Mexico
| | | | - Ricardo Pérez-Fuentes
- Laboratorio de Investigación en Fisiopatología de Enfermedades Crónicas, Centro de Investigación Biomédica de Oriente, IMSS, Delegación Puebla. Atlixco, Puebla, Mexico.,Facultad de Medicina, Benemérita Universidad Autónoma de Puebla. Puebla, Mexico
| | - Martha Elba Gonzalez-Mejia
- Departamento de Genética, Facultad de Medicina, Benémerita Universidad Autónoma de Puebla. Puebla, Mexico
| |
Collapse
|
12
|
The 5-formyltetrahydrofolate futile cycle reduces pathway stochasticity in an extended hybrid-stochastic model of folate-mediated one-carbon metabolism. Sci Rep 2019; 9:4322. [PMID: 30867454 PMCID: PMC6416297 DOI: 10.1038/s41598-019-40230-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 02/11/2019] [Indexed: 11/17/2022] Open
Abstract
In folate-mediated one-carbon metabolism (FOCM), 5-formyltetrahydrofolate (5fTHF), a one-carbon substituted tetrahydrofolate (THF) vitamer, acts as an intracellular storage form of folate and as an inhibitor of the folate-dependent enzymes phosphoribosylaminoimidazolecarboxamide formyltransferase (AICARFT) and serine hydroxymethyltransferase (SHMT). Cellular levels of 5fTHF are regulated by a futile cycle comprising the enzymes SHMT and 5,10-methenyltetrahydrofolate synthetase (MTHFS). MTHFS is an essential gene in mice; however, the roles of both 5fTHF and MTHFS in mammalian FOCM remain to be fully elucidated. We present an extension of our previously published hybrid-stochastic model of FOCM by including the 5fTHF futile-cycle to explore its effect on the FOCM network. Model simulations indicate that MTHFS plays an essential role in preventing 5fTHF accumulation, which consequently averts inhibition of all other reactions in the metabolic network. Moreover, in silico experiments show that 10-formylTHF inhibition of MTHFS is critical for regulating purine synthesis. Model simulations also provide evidence that 5-methylTHF (and not 5fTHF) is the predominant physiological binder/inhibitor of SHMT. Finally, the model simulations indicate that the 5fTHF futile cycle dampens the stochastic noise in FOCM that results from both folate deficiency and a common variant in the methylenetetrahydrofolate reductase (MTHFR) gene.
Collapse
|
13
|
Zhang S, Chen S, Chen Y, Kang M, Liu C, Qiu H, Wang Y, Tang W. Investigation of methylenetetrahydrofolate reductase tagging polymorphisms with colorectal cancer in Chinese Han population. Oncotarget 2017; 8:63518-63527. [PMID: 28969008 PMCID: PMC5609940 DOI: 10.18632/oncotarget.18845] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 06/04/2017] [Indexed: 01/28/2023] Open
Abstract
The aim of this case-control study was to assess the relationship between the tagging polymorphisms in methylenetetrahydrofolate reductase (MTHFR) gene and the susceptibility to colorectal cancer (CRC) in a Chinese Han population. A custom-by-design 48-Plex SNPscan Kit was used to determine the genotypes of MTHFR rs3753584 T>C, rs9651118 T>C, rs1801133 G>A, rs4846048 A>G and rs4845882 G>A polymorphisms in 387 CRC patients and 1,536 non-cancer controls. The results revealed that MTHFR rs1801133 G>A polymorphism was associated with a decreased risk of overall CRC. While MTHFR rs4845882 G>A polymorphism conferred an increased risk to overall CRC. In a stratified analysis by CRC region, we found MTHFR rs3753584 T>C and rs9651118 T>C polymorphisms were associated with the increased risk of colon cancer. In addition, a significantly increased risk of rectum cancer associated with MTHFR rs3753584 T>C polymorphism was overt. However, MTHFR rs1801133 G>A polymorphism conferred a decreased risk to colon cancer. In conclusion, findings of the present study reveal that the tagging polymorphisms in MTHFR gene (rs3753584 T>C, rs9651118 T>C and rs4845882 G>A) are associated with the increased risk of CRC. However, MTHFR rs1801133 G>A polymorphism confers a decreased risk to CRC. Additional studies with larger sample size are needed to confirm these findings.
Collapse
Affiliation(s)
- Sheng Zhang
- Department of General Surgery, Changzhou No. 3 People's Hospital, Changzhou, Jiangsu Province, China
| | - Shuchen Chen
- Department of Thoracic Surgery, Affiliated Union Hospital of Fujian Medical University, Fuzhou, Fujian Province, China
| | - Yu Chen
- Department of Medical Oncology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, Fujian Province, China.,Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, Fujian Province, China
| | - Mingqiang Kang
- Department of Thoracic Surgery, Affiliated Union Hospital of Fujian Medical University, Fuzhou, Fujian Province, China
| | - Chao Liu
- Department of Cardiothoracic Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Hao Qiu
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Yafeng Wang
- Department of Cardiology, The People's Hospital of Xishuangbanna Dai Autonomous Prefecture, Jinghong, Yunnan Province, China
| | - Weifeng Tang
- Department of Thoracic Surgery, Affiliated Union Hospital of Fujian Medical University, Fuzhou, Fujian Province, China.,Department of Cardiothoracic Surgery, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China
| |
Collapse
|
14
|
Misselbeck K, Marchetti L, Field MS, Scotti M, Priami C, Stover PJ. A hybrid stochastic model of folate-mediated one-carbon metabolism: Effect of the common C677T MTHFR variant on de novo thymidylate biosynthesis. Sci Rep 2017; 7:797. [PMID: 28400561 PMCID: PMC5429759 DOI: 10.1038/s41598-017-00854-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 03/13/2017] [Indexed: 11/19/2022] Open
Abstract
Folate-mediated one-carbon metabolism (FOCM) is an interconnected network of metabolic pathways, including those required for the de novo synthesis of dTMP and purine nucleotides and for remethylation of homocysteine to methionine. Mouse models of folate-responsive neural tube defects (NTDs) indicate that impaired de novo thymidylate (dTMP) synthesis through changes in SHMT expression is causative in folate-responsive NTDs. We have created a hybrid computational model comprised of ordinary differential equations and stochastic simulation. We investigated whether the de novo dTMP synthesis pathway was sensitive to perturbations in FOCM that are known to be associated with human NTDs. This computational model shows that de novo dTMP synthesis is highly sensitive to the common MTHFR C677T polymorphism and that the effect of the polymorphism on FOCM is greater in folate deficiency. Computational simulations indicate that the MTHFR C677T polymorphism and folate deficiency interact to increase the stochastic behavior of the FOCM network, with the greatest instability observed for reactions catalyzed by serine hydroxymethyltransferase (SHMT). Furthermore, we show that de novo dTMP synthesis does not occur in the cytosol at rates sufficient for DNA replication, supporting empirical data indicating that impaired nuclear de novo dTMP synthesis results in uracil misincorporation into DNA.
Collapse
Affiliation(s)
- Karla Misselbeck
- The Microsoft Research - University of Trento Centre for Computational and Systems Biology (COSBI), Piazza Manifattura, 1, 38068, Rovereto (TN), Italy
- Department of Mathematics, University of Trento, Trento, Italy
| | - Luca Marchetti
- The Microsoft Research - University of Trento Centre for Computational and Systems Biology (COSBI), Piazza Manifattura, 1, 38068, Rovereto (TN), Italy
| | - Martha S Field
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, 14853, USA
| | - Marco Scotti
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany
| | - Corrado Priami
- The Microsoft Research - University of Trento Centre for Computational and Systems Biology (COSBI), Piazza Manifattura, 1, 38068, Rovereto (TN), Italy.
- Department of Mathematics, University of Trento, Trento, Italy.
| | - Patrick J Stover
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, 14853, USA.
| |
Collapse
|
15
|
Svensson T, Yamaji T, Budhathoki S, Hidaka A, Iwasaki M, Sawada N, Inoue M, Sasazuki S, Shimazu T, Tsugane S. Alcohol consumption, genetic variants in the alcohol- and folate metabolic pathways and colorectal cancer risk: the JPHC Study. Sci Rep 2016; 6:36607. [PMID: 27827401 PMCID: PMC5101526 DOI: 10.1038/srep36607] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 10/17/2016] [Indexed: 12/17/2022] Open
Abstract
The association between alcohol intake and colorectal cancer (CRC) may vary secondary to single nucleotide polymorphisms (SNPs) in two pathways related to alcohol intake. 375 cases of CRC were identified among 38 373 Japan Public Health Center-based prospective Study (JPHC Study) participants who had returned a baseline questionnaire, reported no diagnosis of any cancer and provided blood samples. For each case, two controls were selected on matching variables. Logistic regression models were used to determine matched Odds Ratios (OR) and 95% Confidence Intervals (CI) for the association between alcohol consumption, genetic polymorphisms of enzymes in the alcohol- and folate metabolic pathways (e.g. methylenetetrahydrofolate reductase (MTHFR) rs1801133) and CRC risk. Compared to never/occasional alcohol intake, moderate to heavy alcohol intake was associated with CRC (OR = 2.12, 95% CI, 1.34–3.36). When compared to the CC genotype, the MTHFR rs1801133 CT/TT genotype was inversely associated with CRC (OR = 0.72, 95% CI, 0.54–0.97). Never/occasional consumers of alcohol with the MTHFR rs1801133 CT/TT genotype were also at a reduced risk of CRC compared to never/occasional drinkers with the CC genotype (OR = 0.68, 95% CI, 0.47–0.98) (P for interaction = 0.27). The results indicate that the folate pathway is likely to be involved in alcohol-related CRC development.
Collapse
Affiliation(s)
- Thomas Svensson
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Taiki Yamaji
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Sanjeev Budhathoki
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Akihisa Hidaka
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Motoki Iwasaki
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Norie Sawada
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Manami Inoue
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Shizuka Sasazuki
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Taichi Shimazu
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| |
Collapse
|
16
|
Haerian MS, Haerian BS, Molanaei S, Kosari F, Sabeti S, Bidari-Zerehpoosh F, Abdolali E, Zali MR. MTHFR rs1801133 polymorphism and susceptibility to colorectal cancer in Iranian population: evidence of a case-control study and meta-analysis. Pharmacogenomics 2016; 17:1957-1965. [PMID: 27790938 DOI: 10.2217/pgs-2016-0048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Several studies have investigated whether MTHFR rs1801133 polymorphism contributes to risk of colorectal cancer (CRC), however the results are inconclusive. AIM The purpose of this study was to investigate this hypothesis in a case-control study and meta-analysis in Iranian population. MATERIALS & METHODS This polymorphism was genotyped in the 2421 subjects (46% CRC patients) from Tehran. Meta-analysis was performed for determining the risk effect size of this polymorphism on CRC. RESULTS Both case-control study and meta-analysis showed no association between rs1801133 and CRC risk or its features. CONCLUSION This study failed to identify an association between the rs1801133 and susceptibility to CRC in Iranian population.
Collapse
Affiliation(s)
- Monir Sadat Haerian
- Bone and Joint Reconstruction Research Center, Shafa Yahyaeian Orthopedics Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Batoul Sadat Haerian
- Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Farid Kosari
- Department of Pathology, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahram Sabeti
- Department of Pathology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farahnaz Bidari-Zerehpoosh
- Department of Pathology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ebrahim Abdolali
- Department of Pathology, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zali
- Gastroenterology & Liver Diseases Research Center (GLDRC), Shahid Beheshti University of Medical Science, Tehran, Iran
| |
Collapse
|
17
|
Mazul AL, Siega-Riz AM, Weinberg CR, Engel SM, Zou F, Carrier KS, Basta PV, Vaksman Z, Maris JM, Diskin SJ, Maxen C, Naranjo A, Olshan AF. A family-based study of gene variants and maternal folate and choline in neuroblastoma: a report from the Children's Oncology Group. Cancer Causes Control 2016; 27:1209-18. [PMID: 27541142 PMCID: PMC5025391 DOI: 10.1007/s10552-016-0799-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 08/11/2016] [Indexed: 12/18/2022]
Abstract
PURPOSE Neuroblastoma is a childhood cancer of the sympathetic nervous system with embryonic origins. Previous epidemiologic studies suggest maternal vitamin supplementation during pregnancy reduces the risk of neuroblastoma. We hypothesized offspring and maternal genetic variants in folate-related and choline-related genes are associated with neuroblastoma and modify the effects of maternal intake of folate, choline, and folic acid. METHODS The Neuroblastoma Epidemiology in North America (NENA) study recruited 563 affected children and their parents through the Children's Oncology Group's Childhood Cancer Research Network. We used questionnaires to ascertain pre-pregnancy supplementation and estimate usual maternal dietary intake of folate, choline, and folic acid. We genotyped 955 genetic variants related to folate or choline using DNA extracted from saliva samples and used a log-linear model to estimate both child and maternal risk ratios and stratum-specific risk ratios for gene-environment interactions. RESULTS Overall, no maternal or offspring genotypic results met criteria for a false discovery rate (FDR) Q-value <0.2. Associations were also null for gene-environment interaction with pre-pregnancy vitamin supplementation, dietary folic acid, and folate. FDR-significant gene-choline interactions were found for offspring SNPs rs10489810 and rs9966612 located in MTHFD1L and TYMS, respectively, with maternal choline dietary intake dichotomized at the first quartile. CONCLUSION These results suggest that variants related to one-carbon metabolism are not strongly associated with neuroblastoma. Choline-related variants may play a role; however, the functional consequences of the interacting variants are unknown and require independent replication.
Collapse
Affiliation(s)
- Angela L Mazul
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA.
| | - Anna Maria Siega-Riz
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Clarice R Weinberg
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Stephanie M Engel
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA
| | - Fei Zou
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Kathryn S Carrier
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA
| | - Patricia V Basta
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA
- Biospecimen Processing Center, University of North Carolina, Chapel Hill, NC, USA
| | - Zalman Vaksman
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - John M Maris
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sharon J Diskin
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Charlene Maxen
- Showers Center for Childhood Cancer and Blood Disorder, Akron Children's Hospital, Akron, OH, USA
| | - Arlene Naranjo
- Department of Biostatistics, Colleges of Medicine and Public Health & Health Professions, University of Florida, Gainesville, FL, USA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Campus Box 7435, 2106 McGavran-Greenberg Hall, Chapel Hill, NC, 27599-7435, USA
| |
Collapse
|
18
|
Chasing the personalized medicine dream through biomarker validation in colorectal cancer. Drug Discov Today 2016; 22:111-119. [PMID: 27693431 DOI: 10.1016/j.drudis.2016.09.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/28/2016] [Accepted: 09/22/2016] [Indexed: 02/06/2023]
Abstract
Colorectal cancer (CRC) is a major health burden worldwide. The optimal approach to the diagnosis, management, and treatment of CRC involves multidisciplinary and integrated management practices. The field is rapidly changing because of recent advancements in delineating the molecular basis of tumorigenesis, introduction of targeted therapy, varied patient response to mainstay chemotherapeutics, biological drugs, and the effective combination regimes being used for treatment. Recent meta-analysis studies, which tend to establish few clinically useful predictor biomarkers, identify inconsistent results and limitations of the trials. Therefore, molecular pathological epidemiology discipline initiatives are promising. Here, we provide an overview of the potential of biomarker validation for personalized medicine by focusing largely on metastatic (m)CRC. We also highlight new candidate predictive and prognostic biomarkers.
Collapse
|
19
|
Methylenetetrahydrofolate reductase gene polymorphism in endometrial cancer: A systematic review and meta-analysis. Taiwan J Obstet Gynecol 2016; 54:546-50. [PMID: 26522108 DOI: 10.1016/j.tjog.2015.08.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 02/24/2015] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVE We conducted a meta-analysis of case-controlled prospective or retrospective studies to assess the effect of MTHFR polymorphisms on the risk of developing endometrial cancer. MATERIALS AND METHODS PubMed, Cochrane, EMBASE, and ISI Web of Knowledge were searched (up to March 2014) for prospective or retrospective case-controlled studies that investigated the association of three MTHFR polymorphisms (rs180113 [C677T], rs1801131 [A1289C], and rs2274976 [G1793A]) with endometrial cancer. RESULTS The patient population included subjects from three separate countries: China, Spain, and the USA. Only one study reported quantitative findings for MTHFR G1793A and, consequently, this polymorphism was not evaluated in our analysis. There were no significant associations of any MTHFR C677T or MTHFR A1298C alleles or genotypes with endometrial cancer (all p > 0.300). CONCLUSION This meta-analysis does not support the association of endometrial cancer with two common MTHFR polymorphisms from this patient population.
Collapse
|
20
|
Haerian BS, Haerian MS. Evaluation of association studies and meta-analyses of MTHFR gene polymorphisms in colorectal cancer. Pharmacogenomics 2016; 16:413-25. [PMID: 25823789 DOI: 10.2217/pgs.14.177] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
There is a discrepancy between the results of 89 original studies and 15 meta-analyses investigating the association of MTHFR rs1801133 and rs1801131 polymorphisms with colorectal cancer (CRC) risk. We examined this hypothesis through meta-analyses of both loci and their diplotypes as well as evaluation of previous meta-analyses. The present meta-analysis showed that rs1801133 and rs1801131 might be CRC susceptibility variants in Americans and Australians and rs1801133 in Brazilians and Japanese. A strong linkage disequilibrium was observed between both loci and their diplotypes were associated with CRC risk. Evaluation of 15 meta-analyses showed a high discrepancy among their findings, mainly caused by population stratification of original studies and data analysis strategies in meta-analysis. Population stratification was more dominant in the studies from Australia, America and Brazil leading to false positive or negative results. In conclusion, these loci alone might modify the development of CRC in some ethnicities.
Collapse
Affiliation(s)
- Batoul Sadat Haerian
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | | |
Collapse
|
21
|
Varzari A, Deyneko IV, Tudor E, Turcan S. Polymorphisms of glutathione S-transferase and methylenetetrahydrofolate reductase genes in Moldavian patients with ulcerative colitis: Genotype-phenotype correlation. Meta Gene 2015; 7:76-82. [PMID: 26862484 PMCID: PMC4707243 DOI: 10.1016/j.mgene.2015.12.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 12/07/2015] [Accepted: 12/08/2015] [Indexed: 12/14/2022] Open
Abstract
Background Glutathione S-transferases (GSTM1, GSTT1, and GSTP1) and methylenetetrahydrofolate reductase (MTHFR) are important enzymes for protection against oxidative stress. In addition, MTHFR has an essential role in DNA synthesis, repair, and methylation. Their polymorphisms have been implicated in the pathogenesis of ulcerative colitis (UC). The aim of the present study was to investigate the role of selected polymorphisms in these genes in the development of UC in the Moldavian population. Methods In a case-control study including 128 UC patients and 136 healthy individuals, GSTM1 and GSTT1 genotypes (polymorphic deletions) were determined using multiplex polymerase chain reaction (PCR). The GSTP1 rs1695 (Ile105Val), MTHFR rs1801133 (C677T), and MTHFR rs1801131 (A1298C) polymorphisms were studied with restriction fragment length polymorphism (RFLP) analysis. Genotype–phenotype correlations were examined using logistic regression analysis. Results None of the genotypes, either alone or in combination, showed a strong association with UC. The case-only sub-phenotypic association analysis showed an association of the MTHFR rs1801133 polymorphism with the extent of UC under co-dominant (p corrected = 0.040) and recessive (p corrected = 0.020; OR = 0.15; CI = 0.04–0.63) genetic models. Also, an association between the MTHFR rs1801131 polymorphism and the severity of UC was reported for the over-dominant model (p corrected = 0.023; coefficient = 0.32; 95% CI = 0.10–0.54). Conclusion The GST and MTHFR genotypes do not seem to be a relevant risk factor for UC in our sample. There was, however, evidence that variants in MTHFR may influence the clinical features in UC patients. Additional larger studies investigating the relationship between GST and MTHFR polymorphisms and UC are required.
Collapse
Key Words
- GST, Glutathione S-transferase
- Genetic polymorphism
- Glutathione S-transferases
- HWE, Hardy–Weinberg equilibrium
- IBD, Inflammatory bowel disease
- MTHFR, Methylenetetrahydrofolate reductase
- Methylenetetrahydrofolate reductase
- Moldavian population
- PCR, Polymerase chain reaction
- RFLP, Restriction fragment length polymorphism
- SAM, S-adenosyl methionine
- SNP, Single nucleotide polymorphism
- Susceptibility
- UC, Ulcerative colitis
- Ulcerative colitis
- n, Total number
Collapse
Affiliation(s)
- Alexander Varzari
- Laboratory of Human Genetics, Institute of Phthisiopneumology, Kishinev, Republic of Moldova
| | - Igor V Deyneko
- Department of Molecular Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Elena Tudor
- Laboratory of Human Genetics, Institute of Phthisiopneumology, Kishinev, Republic of Moldova
| | - Svetlana Turcan
- Department of Gastroenterology, State University of Medicine and Pharmacy, Kishinev, Republic of Moldova
| |
Collapse
|
22
|
Methylenetetrahydrofolate reductase C677T and A1298C polymorphisms and fluorouracil-based treatment in Taiwan colorectal cancer. Anticancer Drugs 2015; 26:888-93. [DOI: 10.1097/cad.0000000000000261] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
23
|
Mazzuca F, Borro M, Botticelli A, Aimati L, Gentile G, Capalbo C, Maddalena C, Mazzotti E, Simmaco M, Marchetti P. Effect of MTHFR Polymorphisms on Gastrointestinal Cancer Risk in Italy. World J Oncol 2015; 6:394-397. [PMID: 28983337 PMCID: PMC5624687 DOI: 10.14740/wjon930w] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The aim of the study was to assess the association of single nucleotide polymorphisms (SNPs) C677T and A1298C in the methylenetetrahydrofolate reductase gene with colorectal, esophageal/gastric and pancreatic cancer in a cohort of Italian patients. METHODS A total of 790 cancer patients and 202 healthy controls were genotyped and distributions in genotype and allele frequencies were compared by Chi-squared analysis and logistic regression analysis. RESULTS According to most of previous findings, we found an effect of the C677T variant, but no effect of the A1298C, in colorectal and esophageal/gastric, whereas no association was evidenced with pancreatic cancer. We found that only homozygous TT carriers of the C677T variant had an increased risk for onset of cancer. CONCLUSION This result could be related to dietary and behavioral habits of the analyzed population, which could mitigate the deleterious effect of the T allele in heterozygosity and it highlights the importance to validate genetic determinant of cancer risk in different population and geographical areas.
Collapse
Affiliation(s)
- Federica Mazzuca
- Department of Clinical Oncology, Faculty of Medicine and Psychology, University of Rome "La Sapienza", Azienda Ospedaliera Sant'Andrea, Via di Grottarossa, 1035/39, 00189 Roma, Italy
| | - Marina Borro
- Department of Advanced Molecular Diagnosis Unit (DiMA), Azienda Ospedaliera Sant'Andrea, Via di Grottarossa, 1035/39, 00189 Roma, Italy
| | - Andrea Botticelli
- Department of Clinical Oncology, Faculty of Medicine and Psychology, University of Rome "La Sapienza", Azienda Ospedaliera Sant'Andrea, Via di Grottarossa, 1035/39, 00189 Roma, Italy
| | - Laura Aimati
- Department of Advanced Molecular Diagnosis Unit (DiMA), Azienda Ospedaliera Sant'Andrea, Via di Grottarossa, 1035/39, 00189 Roma, Italy
| | - Giovanna Gentile
- Department of Advanced Molecular Diagnosis Unit (DiMA), Azienda Ospedaliera Sant'Andrea, Via di Grottarossa, 1035/39, 00189 Roma, Italy
| | - Carlo Capalbo
- Department of Clinical Oncology, Faculty of Medicine and Psychology, University of Rome "La Sapienza", Azienda Ospedaliera Sant'Andrea, Via di Grottarossa, 1035/39, 00189 Roma, Italy
| | - Chiara Maddalena
- Department of Clinical Oncology, Faculty of Medicine and Psychology, University of Rome "La Sapienza", Azienda Ospedaliera Sant'Andrea, Via di Grottarossa, 1035/39, 00189 Roma, Italy
| | - Eva Mazzotti
- Department of Clinical Oncology, Faculty of Medicine and Psychology, University of Rome "La Sapienza", Azienda Ospedaliera Sant'Andrea, Via di Grottarossa, 1035/39, 00189 Roma, Italy
| | - Maurizio Simmaco
- Department of Advanced Molecular Diagnosis Unit (DiMA), Azienda Ospedaliera Sant'Andrea, Via di Grottarossa, 1035/39, 00189 Roma, Italy
| | - Paolo Marchetti
- Department of Clinical Oncology, Faculty of Medicine and Psychology, University of Rome "La Sapienza", Azienda Ospedaliera Sant'Andrea, Via di Grottarossa, 1035/39, 00189 Roma, Italy
| |
Collapse
|
24
|
Cascella M, Cascella MM, Arcamone M, Arcamone MM, Morelli E, Morelli EE, Viscardi D, Viscardi DD, Russo V, Russo VV, De Franciscis S, De Franciscis SS, Belli A, Belli AA, Accardo R, Accardo RR, Caliendo D, Caliendo DD, De Luca E, De Luca EE, Di Caprio B, Di Caprio BB, Di Sauro F, Di Sauro FF, Giannoni G, Giannoni GG, Iermano C, Iermano CC, Maciariello M, Maciariello MM, Marracino M, Marracino MM, Cuomo A, Cuomo AA. Multidisciplinary approach and anesthetic management of a surgical cancer patient with methylene tetrahydrofolate reductase deficiency: a case report and review of the literature. J Med Case Rep 2015; 9:175. [PMID: 26289647 PMCID: PMC4546078 DOI: 10.1186/s13256-015-0662-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 07/27/2015] [Indexed: 12/23/2022] Open
Abstract
Introduction Hyperhomocysteinemia is a known risk factor for myocardial infarction, stroke, peripheral vascular disease, and thrombosis. Elevated plasma homocysteine levels have been demonstrated in patients with recurrent episodes or a single episode of thrombosis. Here we describe the development of cardiovascular disease as a complication of a surgical intervention in a patient with colorectal cancer and hyperhomocysteinemia. Case presentation A 65-year-old Caucasian man complained of pain and constipation, attributed to previously diagnosed adenocarcinoma (stage IIB) of the hepatic flexure. An anamnestic investigation showed that he had undergone two surgical interventions. During both, he suffered thrombotic postoperative complications, a deep vein thrombosis of the upper extremity after the first operation and retinal vein occlusion after the second. He was diagnosed with hyperhomocysteinemia associated with a homozygous C677T mutation of the gene encoding the enzyme methylenetetrahydrofolate reductase. Our patient was initially treated with folic acid and high-dose B vitamins. On day 7 he underwent a right hemicolectomy. Anesthesia was performed with sevoflurane in 40% O2 and without the use of nitrous oxide. Postoperatively, our patient remained on folic acid and B vitamins and was without immediate or subsequent complications. Conclusions Neoplastic disease and related surgery followed by the administration of chemotherapeutic drugs alter the hemostatic balance in cancer patients. Those suspected of also having a thrombophilic disease require a thorough laboratory diagnostic workup, including a molecular analysis aimed at identifying the genetic mutation responsible for the hyperhomocysteinemia, as indicated. The case described in this report highlights the importance of a multidisciplinary approach that includes expertise in peri-operative anesthesia, surgery, oncology, and hematology.
Collapse
Affiliation(s)
- Marco Cascella
- Division of Anesthesia, Department of Anesthesia, Endoscopy and Cardiology, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Manuela Arcamone
- Division of Haematology-Oncology and Stem Cell Transplantation Unit, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Emanuela Morelli
- Division of Haematology-Oncology and Stem Cell Transplantation Unit, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Daniela Viscardi
- Department of Surgery, Anesthesia, Emergency and Intensive Care, University of Naples "Federico II", Naples, Italy.
| | | | - Viera Russo
- Department of Surgery, Anesthesia, Emergency and Intensive Care, University of Naples "Federico II", Naples, Italy.
| | | | - Silvia De Franciscis
- Department of Abdominal Oncology Surgery, Istituto Nazionale Tumori "Fondazione G. Pascale"- IRCSS, Naples, Italy.
| | | | - Andrea Belli
- Department of Abdominal Oncology Surgery, Istituto Nazionale Tumori "Fondazione G. Pascale"- IRCSS, Naples, Italy.
| | | | - Rosanna Accardo
- Division of Anesthesia, Department of Anesthesia, Endoscopy and Cardiology, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Domenico Caliendo
- Division of Anesthesia, Department of Anesthesia, Endoscopy and Cardiology, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Elena De Luca
- Division of Anesthesia, Department of Anesthesia, Endoscopy and Cardiology, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Barbara Di Caprio
- Division of Anesthesia, Department of Anesthesia, Endoscopy and Cardiology, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Francesco Di Sauro
- Division of Anesthesia, Department of Anesthesia, Endoscopy and Cardiology, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Giovanni Giannoni
- Division of Anesthesia, Department of Anesthesia, Endoscopy and Cardiology, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Carmine Iermano
- Division of Anesthesia, Department of Anesthesia, Endoscopy and Cardiology, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Maria Maciariello
- Division of Anesthesia, Department of Anesthesia, Endoscopy and Cardiology, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Marcella Marracino
- Division of Anesthesia, Department of Anesthesia, Endoscopy and Cardiology, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | | - Arturo Cuomo
- Division of Anesthesia, Department of Anesthesia, Endoscopy and Cardiology, Istituto Nazionale Tumori "Fondazione G. Pascale" - IRCSS, Naples, Italy.
| | | |
Collapse
|
25
|
Meta-analysis of the association of MTHFR polymorphisms with multiple myeloma risk. Sci Rep 2015; 5:10735. [PMID: 26022785 PMCID: PMC4448268 DOI: 10.1038/srep10735] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 04/20/2015] [Indexed: 01/11/2023] Open
Abstract
The association of methylenetetrahydrofolate reductase (MTHFR) polymorphisms with multiple myeloma (MM) risk has been explored, but the results remain controversial. Thus, a meta-analysis was performed to provide a comprehensively estimate. The case-control studies about MTHFR C677T and A1298C polymorphisms with MM risk were collected by searching PubMed, Elsevier, China National Knowledge Infrastructure and Wanfang Databases. Odds ratios (ORs) with 95% confidence intervals (CIs) were applied to assess the strength of association. Overall, no significant association was found between MTHFR A1298C polymorphism and MM risk under all four genetic models (AC vs. AA, OR = 0.99, 95%CI = 0.82-1.20; CC vs. AA, OR = 1.14, 95%CI = 0.77-1.68; recessive model, OR = 1.10, 95%CI = 0.76-1.59; dominant model, OR = 1.01, 95%CI = 0.84-1.22). The risk was also not significantly altered for C677T polymorphism and MM in overall comparisons (CT vs. CC, OR = 1.04, 95%CI = 0.93-1.17; TT vs. CC, OR = 1.16, 95%CI = 0.98-1.37; recessive model, OR = 1.13, 95%CI = 0.98-1.32; dominant model, OR = 1.07, 95%CI = 0.96-1.20). In subgroup analyses by ethnicity, no significant association was observed in both Caucasians and Asians. This meta-analysis suggested that MTHFR polymorphisms were not associated with MM risk.
Collapse
|
26
|
Keshteli AH, Baracos VE, Madsen KL. Hyperhomocysteinemia as a potential contributor of colorectal cancer development in inflammatory bowel diseases: A review. World J Gastroenterol 2015; 21:1081-1090. [PMID: 25632180 PMCID: PMC4306151 DOI: 10.3748/wjg.v21.i4.1081] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/13/2014] [Accepted: 09/30/2014] [Indexed: 02/06/2023] Open
Abstract
Homocysteine is an amino acid generated metabolically by the S-adenosylmethionine-dependent transmethylation pathway. In addition to being a well-known independent risk factor for coronary heart disease, is also a risk factor for cancer. Patients suffering from inflammatory bowel diseases (IBD) including ulcerative colitis and Crohn’s disease are at increased risk of developing colorectal cancer in comparison to healthy individuals. Furthermore, the risk of hyperhomocysteinaemia is significantly higher in IBD patients when compared with controls. In the present article, we review the mechanisms in which hyperhomocysteinemia may contribute to increased risk of colorectal cancer in IBD patients.
Collapse
|
27
|
Methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism: epidemiology, metabolism and the associated diseases. Eur J Med Genet 2014; 58:1-10. [PMID: 25449138 DOI: 10.1016/j.ejmg.2014.10.004] [Citation(s) in RCA: 246] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 10/26/2014] [Indexed: 02/06/2023]
Abstract
The Methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism is associated with various diseases (vascular, cancers, neurology, diabetes, psoriasis, etc) with the epidemiology of the polymorphism of the C677T that varies dependent on the geography and ethnicity. The 5,10-Methylenetetrahydrofolate reductase (MTHFR) locus is mapped on chromosome 1 at the end of the short arm (1p36.6). This enzyme is important for the folate metabolism which is an integral process for cell metabolism in the DNA, RNA and protein methylation. The mutation of the MTHFR gene which causes the C677T polymorphism is located at exon 4 which results in the conversion of valine to alanine at codon 222, a common polymorphism that reduces the activity of this enzyme. The homozygous mutated subjects have higher homocysteine levels while the heterozygous mutated subjects have mildly raised homocysteine levels compared with the normal, non-mutated controls. Hyperhomocysteinemia is an emerging risk factor for various cardiovascular diseases and with the increasing significance of this polymorphism in view of the morbidity and mortality impact on the patients, further prevention strategies and nutritional recommendations with the supplementation of vitamin B12 and folic acid which reduces plasma homocysteine level would be necessary as part of future health education. This literature review therefore focuses on the recent evidence-based reports on the associations of the MTHFR C677T polymorphism and the various diseases globally.
Collapse
|
28
|
|