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Published in: Cancer Causes & Control 4/2010

01-04-2010 | Original paper

One-carbon metabolism and CpG island methylator phenotype status in incident colorectal cancer: a nested case–referent study

Authors: Bethany Van Guelpen, Anna M. Dahlin, Johan Hultdin, Vincy Eklöf, Ingegerd Johansson, Maria L. Henriksson, Inger Cullman, Göran Hallmans, Richard Palmqvist

Published in: Cancer Causes & Control | Issue 4/2010

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Abstract

Objective

We related prediagnostic plasma folate, vitamin B12, and total homocysteine concentrations, and the MTHFR 677C>T and 1298A>C polymorphisms, to the risk of colorectal cancer with and without the CpG island methylator phenotype (CIMP).

Methods

This was a nested case–referent study of 190 cases and double, matched referents from the large, population-based Northern Sweden Health and Disease Study. Using archival tumor tissue, promoter methylation in an eight-gene panel was analyzed by MethyLight.

Results

A reduced risk of CIMP-low/CIMP-high CRC (≥1 gene methylated) was observed in subjects with very low plasma folate concentrations [multivariate odds ratio 2.96 (95% CI 1.24–7.08) for quintiles two to five versus one (lowest)]. With the exception of a reduced risk in MTHFR 677 TT-homozygotes, none of the other one-carbon variables were associated with the risk of CIMP-low/CIMP-high CRC. For CIMP-negative CRC, only the MTHFR polymorphisms were statistically significantly related to risk, inversely for 677C>T and positively for 1298A>C, but a tendency toward a reduced risk was observed in subjects with an adequate methyl availability, combining the plasma variables [multivariate odds ratio 0.61 (95% CI 0.32–1.15)].

Conclusion

Though limited by low power, these findings suggest the possibility of different roles for one-carbon metabolism in different pathways of colorectal tumorigenesis.
Literature
1.
go back to reference Kim YI (2007) Folate and colorectal cancer: an evidence-based critical review. Mol Nutr Food Res 51(3):267–292CrossRefPubMed Kim YI (2007) Folate and colorectal cancer: an evidence-based critical review. Mol Nutr Food Res 51(3):267–292CrossRefPubMed
2.
go back to reference Sanjoaquin MA, Allen N, Couto E, Roddam AW, Key TJ (2005) Folate intake and colorectal cancer risk: a meta-analytical approach. Int J Cancer 113(5):825–828CrossRefPubMed Sanjoaquin MA, Allen N, Couto E, Roddam AW, Key TJ (2005) Folate intake and colorectal cancer risk: a meta-analytical approach. Int J Cancer 113(5):825–828CrossRefPubMed
3.
go back to reference Logan RF, Grainge MJ, Shepherd VC, Armitage NC, Muir KR (2008) Aspirin and folic acid for the prevention of recurrent colorectal adenomas. Gastroenterology 134(1):29–38CrossRefPubMed Logan RF, Grainge MJ, Shepherd VC, Armitage NC, Muir KR (2008) Aspirin and folic acid for the prevention of recurrent colorectal adenomas. Gastroenterology 134(1):29–38CrossRefPubMed
4.
go back to reference Cole BF, Baron JA, Sandler RS et al (2007) Folic acid for the prevention of colorectal adenomas: a randomized clinical trial. JAMA 297(21):2351–2359CrossRefPubMed Cole BF, Baron JA, Sandler RS et al (2007) Folic acid for the prevention of colorectal adenomas: a randomized clinical trial. JAMA 297(21):2351–2359CrossRefPubMed
5.
go back to reference Bonaa KH, Njolstad I, Ueland PM et al (2006) Homocysteine lowering and cardiovascular events after acute myocardial infarction. N Engl J Med 354(15):1578–1588CrossRefPubMed Bonaa KH, Njolstad I, Ueland PM et al (2006) Homocysteine lowering and cardiovascular events after acute myocardial infarction. N Engl J Med 354(15):1578–1588CrossRefPubMed
6.
go back to reference Lonn E, Yusuf S, Arnold MJ et al (2006) Homocysteine lowering with folic acid and B vitamins in vascular disease. N Engl J Med 354(15):1567–1577CrossRefPubMed Lonn E, Yusuf S, Arnold MJ et al (2006) Homocysteine lowering with folic acid and B vitamins in vascular disease. N Engl J Med 354(15):1567–1577CrossRefPubMed
7.
go back to reference Charles D, Ness AR, Campbell D, Davey Smith G, Hall MH (2004) Taking folate in pregnancy and risk of maternal breast cancer. BMJ 329(7479):1375–1376CrossRefPubMed Charles D, Ness AR, Campbell D, Davey Smith G, Hall MH (2004) Taking folate in pregnancy and risk of maternal breast cancer. BMJ 329(7479):1375–1376CrossRefPubMed
8.
go back to reference Mason JB, Dickstein A, Jacques PF et al (2007) A temporal association between folic acid fortification and an increase in colorectal cancer rates may be illuminating important biological principles: a hypothesis. Cancer Epidemiol Biomarkers Prev 16(7):1325–1329CrossRefPubMed Mason JB, Dickstein A, Jacques PF et al (2007) A temporal association between folic acid fortification and an increase in colorectal cancer rates may be illuminating important biological principles: a hypothesis. Cancer Epidemiol Biomarkers Prev 16(7):1325–1329CrossRefPubMed
9.
go back to reference Toyota M, Ahuja N, Ohe-Toyota M, Herman JG, Baylin SB, Issa JP (1999) CpG island methylator phenotype in colorectal cancer. Proc Natl Acad Sci USA 96(15):8681–8686CrossRefPubMed Toyota M, Ahuja N, Ohe-Toyota M, Herman JG, Baylin SB, Issa JP (1999) CpG island methylator phenotype in colorectal cancer. Proc Natl Acad Sci USA 96(15):8681–8686CrossRefPubMed
10.
go back to reference Ogino S, Kawasaki T, Kirkner GJ, Kraft P, Loda M, Fuchs CS (2007) Evaluation of markers for CpG island methylator phenotype (CIMP) in colorectal cancer by a large population-based sample. J Mol Diagn 9(3):305–314CrossRefPubMed Ogino S, Kawasaki T, Kirkner GJ, Kraft P, Loda M, Fuchs CS (2007) Evaluation of markers for CpG island methylator phenotype (CIMP) in colorectal cancer by a large population-based sample. J Mol Diagn 9(3):305–314CrossRefPubMed
11.
go back to reference Weisenberger DJ, Siegmund KD, Campan M et al (2006) CpG island methylator phenotype underlies sporadic microsatellite instability and is tightly associated with BRAF mutation in colorectal cancer. Nat Genet 38(7):787–793CrossRefPubMed Weisenberger DJ, Siegmund KD, Campan M et al (2006) CpG island methylator phenotype underlies sporadic microsatellite instability and is tightly associated with BRAF mutation in colorectal cancer. Nat Genet 38(7):787–793CrossRefPubMed
12.
go back to reference Ogino S, Cantor M, Kawasaki T et al (2006) CpG island methylator phenotype (CIMP) of colorectal cancer is best characterised by quantitative DNA methylation analysis and prospective cohort studies. Gut 55(7):1000–1006CrossRefPubMed Ogino S, Cantor M, Kawasaki T et al (2006) CpG island methylator phenotype (CIMP) of colorectal cancer is best characterised by quantitative DNA methylation analysis and prospective cohort studies. Gut 55(7):1000–1006CrossRefPubMed
13.
go back to reference Samowitz WS, Albertsen H, Herrick J et al (2005) Evaluation of a large, population-based sample supports a CpG island methylator phenotype in colon cancer. Gastroenterology 129(3):837–845CrossRefPubMed Samowitz WS, Albertsen H, Herrick J et al (2005) Evaluation of a large, population-based sample supports a CpG island methylator phenotype in colon cancer. Gastroenterology 129(3):837–845CrossRefPubMed
14.
go back to reference Hawkins N, Norrie M, Cheong K et al (2002) CpG island methylation in sporadic colorectal cancers and its relationship to microsatellite instability. Gastroenterology 122(5):1376–1387CrossRefPubMed Hawkins N, Norrie M, Cheong K et al (2002) CpG island methylation in sporadic colorectal cancers and its relationship to microsatellite instability. Gastroenterology 122(5):1376–1387CrossRefPubMed
15.
go back to reference Toyota M, Ohe-Toyota M, Ahuja N, Issa JP (2000) Distinct genetic profiles in colorectal tumors with or without the CpG island methylator phenotype. Proc Natl Acad Sci USA 97(2):710–715CrossRefPubMed Toyota M, Ohe-Toyota M, Ahuja N, Issa JP (2000) Distinct genetic profiles in colorectal tumors with or without the CpG island methylator phenotype. Proc Natl Acad Sci USA 97(2):710–715CrossRefPubMed
16.
go back to reference Jass JR (2007) Classification of colorectal cancer based on correlation of clinical, morphological and molecular features. Histopathology 50(1):113–130CrossRefPubMed Jass JR (2007) Classification of colorectal cancer based on correlation of clinical, morphological and molecular features. Histopathology 50(1):113–130CrossRefPubMed
17.
go back to reference Shen L, Toyota M, Kondo Y et al (2007) Integrated genetic and epigenetic analysis identifies three different subclasses of colon cancer. Proc Natl Acad Sci USA 104(47):18654–18659CrossRefPubMed Shen L, Toyota M, Kondo Y et al (2007) Integrated genetic and epigenetic analysis identifies three different subclasses of colon cancer. Proc Natl Acad Sci USA 104(47):18654–18659CrossRefPubMed
18.
go back to reference Ogino S, Kawasaki T, Kirkner GJ, Loda M, Fuchs CS (2006) CpG island methylator phenotype-low (CIMP-low) in colorectal cancer: possible associations with male sex and KRAS mutations. J Mol Diagn 8(5):582–588CrossRefPubMed Ogino S, Kawasaki T, Kirkner GJ, Loda M, Fuchs CS (2006) CpG island methylator phenotype-low (CIMP-low) in colorectal cancer: possible associations with male sex and KRAS mutations. J Mol Diagn 8(5):582–588CrossRefPubMed
19.
go back to reference Ogino S, Kawasaki T, Kirkner GJ, Suemoto Y, Meyerhardt JA, Fuchs CS (2007) Molecular correlates with MGMT promoter methylation and silencing support CpG island methylator phenotype-low (CIMP-low) in colorectal cancer. Gut 56(11):1564–1571CrossRefPubMed Ogino S, Kawasaki T, Kirkner GJ, Suemoto Y, Meyerhardt JA, Fuchs CS (2007) Molecular correlates with MGMT promoter methylation and silencing support CpG island methylator phenotype-low (CIMP-low) in colorectal cancer. Gut 56(11):1564–1571CrossRefPubMed
20.
go back to reference Fraga MF, Ballestar E, Paz MF et al (2005) Epigenetic differences arise during the lifetime of monozygotic twins. Proc Natl Acad Sci USA 102(30):10604–10609CrossRefPubMed Fraga MF, Ballestar E, Paz MF et al (2005) Epigenetic differences arise during the lifetime of monozygotic twins. Proc Natl Acad Sci USA 102(30):10604–10609CrossRefPubMed
21.
go back to reference Waterland RA, Jirtle RL (2003) Transposable elements: targets for early nutritional effects on epigenetic gene regulation. Mol Cell Biol 23(15):5293–5300CrossRefPubMed Waterland RA, Jirtle RL (2003) Transposable elements: targets for early nutritional effects on epigenetic gene regulation. Mol Cell Biol 23(15):5293–5300CrossRefPubMed
22.
go back to reference Cooney CA, Dave AA, Wolff GL (2002) Maternal methyl supplements in mice affect epigenetic variation and DNA methylation of offspring. J Nutr 132(8 Suppl):2393S–2400SPubMed Cooney CA, Dave AA, Wolff GL (2002) Maternal methyl supplements in mice affect epigenetic variation and DNA methylation of offspring. J Nutr 132(8 Suppl):2393S–2400SPubMed
23.
go back to reference Wolff GL, Kodell RL, Moore SR, Cooney CA (1998) Maternal epigenetics and methyl supplements affect agouti gene expression in Avy/a mice. FASEB J 12(11):949–957PubMed Wolff GL, Kodell RL, Moore SR, Cooney CA (1998) Maternal epigenetics and methyl supplements affect agouti gene expression in Avy/a mice. FASEB J 12(11):949–957PubMed
24.
go back to reference Mokarram P, Naghibalhossaini F, Saberi Firoozi M et al (2008) Methylenetetrahydrofolate reductase C677T genotype affects promoter methylation of tumor-specific genes in sporadic colorectal cancer through an interaction with folate/vitamin B12 status. World J Gastroenterol 14(23):3662–3671CrossRefPubMed Mokarram P, Naghibalhossaini F, Saberi Firoozi M et al (2008) Methylenetetrahydrofolate reductase C677T genotype affects promoter methylation of tumor-specific genes in sporadic colorectal cancer through an interaction with folate/vitamin B12 status. World J Gastroenterol 14(23):3662–3671CrossRefPubMed
25.
go back to reference de Vogel S, Bongaerts BW, Wouters KA et al (2008) Associations of dietary methyl donor intake with MLH1 promoter hypermethylation and related molecular phenotypes in sporadic colorectal cancer. Carcinogenesis 29(9):1765–1773CrossRefPubMed de Vogel S, Bongaerts BW, Wouters KA et al (2008) Associations of dietary methyl donor intake with MLH1 promoter hypermethylation and related molecular phenotypes in sporadic colorectal cancer. Carcinogenesis 29(9):1765–1773CrossRefPubMed
26.
go back to reference Al-Ghnaniem R, Peters J, Foresti R, Heaton N, Pufulete M (2007) Methylation of estrogen receptor alpha and mutL homolog 1 in normal colonic mucosa: association with folate and vitamin B-12 status in subjects with and without colorectal neoplasia. Am J Clin Nutr 86(4):1064–1072PubMed Al-Ghnaniem R, Peters J, Foresti R, Heaton N, Pufulete M (2007) Methylation of estrogen receptor alpha and mutL homolog 1 in normal colonic mucosa: association with folate and vitamin B-12 status in subjects with and without colorectal neoplasia. Am J Clin Nutr 86(4):1064–1072PubMed
27.
go back to reference Curtin K, Slattery ML, Ulrich CM et al (2007) Genetic polymorphisms in one-carbon metabolism: associations with CpG island methylator phenotype (CIMP) in colon cancer and the modifying effects of diet. Carcinogenesis 28(8):1672–1679CrossRefPubMed Curtin K, Slattery ML, Ulrich CM et al (2007) Genetic polymorphisms in one-carbon metabolism: associations with CpG island methylator phenotype (CIMP) in colon cancer and the modifying effects of diet. Carcinogenesis 28(8):1672–1679CrossRefPubMed
28.
go back to reference Mas S, Lafuente MJ, Crescenti A et al (2007) Lower specific micronutrient intake in colorectal cancer patients with tumors presenting promoter hypermethylation in p16(INK4a), p4(ARF) and hMLH1. Anticancer Res 27(2):1151–1156PubMed Mas S, Lafuente MJ, Crescenti A et al (2007) Lower specific micronutrient intake in colorectal cancer patients with tumors presenting promoter hypermethylation in p16(INK4a), p4(ARF) and hMLH1. Anticancer Res 27(2):1151–1156PubMed
29.
go back to reference Slattery ML, Curtin K, Sweeney C et al (2007) Diet and lifestyle factor associations with CpG island methylator phenotype and BRAF mutations in colon cancer. Int J Cancer 120(3):656–663CrossRefPubMed Slattery ML, Curtin K, Sweeney C et al (2007) Diet and lifestyle factor associations with CpG island methylator phenotype and BRAF mutations in colon cancer. Int J Cancer 120(3):656–663CrossRefPubMed
30.
go back to reference van den Donk M, Pellis L, Crott JW et al (2007) Folic acid and vitamin B-12 supplementation does not favorably influence uracil incorporation and promoter methylation in rectal mucosa DNA of subjects with previous colorectal adenomas. J Nutr 137(9):2114–2120PubMed van den Donk M, Pellis L, Crott JW et al (2007) Folic acid and vitamin B-12 supplementation does not favorably influence uracil incorporation and promoter methylation in rectal mucosa DNA of subjects with previous colorectal adenomas. J Nutr 137(9):2114–2120PubMed
31.
go back to reference van den Donk M, van Engeland M, Pellis L et al (2007) Dietary folate intake in combination with MTHFR C677T genotype and promoter methylation of tumor suppressor and DNA repair genes in sporadic colorectal adenomas. Cancer Epidemiol Biomarkers Prev 16(2):327–333CrossRefPubMed van den Donk M, van Engeland M, Pellis L et al (2007) Dietary folate intake in combination with MTHFR C677T genotype and promoter methylation of tumor suppressor and DNA repair genes in sporadic colorectal adenomas. Cancer Epidemiol Biomarkers Prev 16(2):327–333CrossRefPubMed
32.
go back to reference Clarizia AD, Bastos-Rodrigues L, Pena HB et al (2006) Relationship of the methylenetetrahydrofolate reductase C677T polymorphism with microsatellite instability and promoter hypermethylation in sporadic colorectal cancer. Genet Mol Res 5(2):315–322PubMed Clarizia AD, Bastos-Rodrigues L, Pena HB et al (2006) Relationship of the methylenetetrahydrofolate reductase C677T polymorphism with microsatellite instability and promoter hypermethylation in sporadic colorectal cancer. Genet Mol Res 5(2):315–322PubMed
33.
go back to reference Oyama K, Kawakami K, Maeda K, Ishiguro K, Watanabe G (2004) The association between methylenetetrahydrofolate reductase polymorphism and promoter methylation in proximal colon cancer. Anticancer Res 24(2B):649–654PubMed Oyama K, Kawakami K, Maeda K, Ishiguro K, Watanabe G (2004) The association between methylenetetrahydrofolate reductase polymorphism and promoter methylation in proximal colon cancer. Anticancer Res 24(2B):649–654PubMed
34.
go back to reference Diergaarde B, Braam H, van Muijen GN, Ligtenberg MJ, Kok FJ, Kampman E (2003) Dietary factors and microsatellite instability in sporadic colon carcinomas. Cancer Epidemiol Biomarkers Prev 12(11 Pt 1):1130–1136PubMed Diergaarde B, Braam H, van Muijen GN, Ligtenberg MJ, Kok FJ, Kampman E (2003) Dietary factors and microsatellite instability in sporadic colon carcinomas. Cancer Epidemiol Biomarkers Prev 12(11 Pt 1):1130–1136PubMed
35.
go back to reference Kawakami K, Ruszkiewicz A, Bennett G, Moore J, Watanabe G, Iacopetta B (2003) The folate pool in colorectal cancers is associated with DNA hypermethylation and with a polymorphism in methylenetetrahydrofolate reductase. Clin Cancer Res 9:5860–5865PubMed Kawakami K, Ruszkiewicz A, Bennett G, Moore J, Watanabe G, Iacopetta B (2003) The folate pool in colorectal cancers is associated with DNA hypermethylation and with a polymorphism in methylenetetrahydrofolate reductase. Clin Cancer Res 9:5860–5865PubMed
36.
go back to reference van Engeland M, Weijenberg MP, Roemen GM et al (2003) Effects of dietary folate and alcohol intake on promoter methylation in sporadic colorectal cancer: the Netherlands cohort study on diet and cancer. Cancer Res 63(12):3133–3137PubMed van Engeland M, Weijenberg MP, Roemen GM et al (2003) Effects of dietary folate and alcohol intake on promoter methylation in sporadic colorectal cancer: the Netherlands cohort study on diet and cancer. Cancer Res 63(12):3133–3137PubMed
37.
go back to reference Paz MF, Avila S, Fraga MF et al (2002) Germ-line variants in methyl-group metabolism genes and susceptibility to DNA methylation in normal tissues and human primary tumors. Cancer Res 62(15):4519–4524PubMed Paz MF, Avila S, Fraga MF et al (2002) Germ-line variants in methyl-group metabolism genes and susceptibility to DNA methylation in normal tissues and human primary tumors. Cancer Res 62(15):4519–4524PubMed
38.
go back to reference Van Guelpen B, Hultdin J, Johansson I et al (2006) Low folate levels may protect against colorectal cancer. Gut 55(10):1461–1466CrossRefPubMed Van Guelpen B, Hultdin J, Johansson I et al (2006) Low folate levels may protect against colorectal cancer. Gut 55(10):1461–1466CrossRefPubMed
39.
go back to reference Dahlin AM, Van Guelpen B, Hultdin J, Johansson I, Hallmans G, Palmqvist R (2008) Plasma vitamin B12 concentrations and the risk of colorectal cancer: a nested case-referent study. Int J Cancer 122(9):2057–2061CrossRefPubMed Dahlin AM, Van Guelpen B, Hultdin J, Johansson I, Hallmans G, Palmqvist R (2008) Plasma vitamin B12 concentrations and the risk of colorectal cancer: a nested case-referent study. Int J Cancer 122(9):2057–2061CrossRefPubMed
40.
go back to reference Agudo A, Slimani N, Ocke MC et al (2002) Consumption of vegetables, fruit and other plant foods in the European prospective investigation into cancer and nutrition (EPIC) cohorts from 10 European countries. Public Health Nutr 5(6B):1179–1196CrossRefPubMed Agudo A, Slimani N, Ocke MC et al (2002) Consumption of vegetables, fruit and other plant foods in the European prospective investigation into cancer and nutrition (EPIC) cohorts from 10 European countries. Public Health Nutr 5(6B):1179–1196CrossRefPubMed
41.
go back to reference Hallmans G, Agren A, Johansson G et al (2003) Cardiovascular disease and diabetes in the Northern Sweden health and disease study cohort—evaluation of risk factors and their interactions. Scand J Public Health Suppl 61:18–24CrossRefPubMed Hallmans G, Agren A, Johansson G et al (2003) Cardiovascular disease and diabetes in the Northern Sweden health and disease study cohort—evaluation of risk factors and their interactions. Scand J Public Health Suppl 61:18–24CrossRefPubMed
42.
go back to reference Benlloch S, Paya A, Alenda C et al (2006) Detection of BRAF V600E mutation in colorectal cancer: comparison of automatic sequencing and real-time chemistry methodology. J Mol Diagn 8(5):540–543CrossRefPubMed Benlloch S, Paya A, Alenda C et al (2006) Detection of BRAF V600E mutation in colorectal cancer: comparison of automatic sequencing and real-time chemistry methodology. J Mol Diagn 8(5):540–543CrossRefPubMed
43.
go back to reference Baas IO, Mulder JW, Offerhaus GJ, Vogelstein B, Hamilton SR (1994) An evaluation of six antibodies for immunohistochemistry of mutant p53 gene product in archival colorectal neoplasms. J Pathol 172(1):5–12CrossRefPubMed Baas IO, Mulder JW, Offerhaus GJ, Vogelstein B, Hamilton SR (1994) An evaluation of six antibodies for immunohistochemistry of mutant p53 gene product in archival colorectal neoplasms. J Pathol 172(1):5–12CrossRefPubMed
44.
go back to reference Ogino S, Kawasaki T, Brahmandam M et al (2006) Precision and performance characteristics of bisulfite conversion and real-time PCR (MethyLight) for quantitative DNA methylation analysis. J Mol Diagn 8(2):209–217CrossRefPubMed Ogino S, Kawasaki T, Brahmandam M et al (2006) Precision and performance characteristics of bisulfite conversion and real-time PCR (MethyLight) for quantitative DNA methylation analysis. J Mol Diagn 8(2):209–217CrossRefPubMed
45.
go back to reference Kim YI, Fawaz K, Knox T et al (1998) Colonic mucosal concentrations of folate correlate well with blood measurements of folate status in persons with colorectal polyps. Am J Clin Nutr 68(4):866–872PubMed Kim YI, Fawaz K, Knox T et al (1998) Colonic mucosal concentrations of folate correlate well with blood measurements of folate status in persons with colorectal polyps. Am J Clin Nutr 68(4):866–872PubMed
46.
go back to reference Kim YI, Fawaz K, Knox T et al (2001) Colonic mucosal concentrations of folate are accurately predicted by blood measurements of folate status among individuals ingesting physiologic quantities of folate. Cancer Epidemiol Biomarkers Prev 10(6):715–719PubMed Kim YI, Fawaz K, Knox T et al (2001) Colonic mucosal concentrations of folate are accurately predicted by blood measurements of folate status among individuals ingesting physiologic quantities of folate. Cancer Epidemiol Biomarkers Prev 10(6):715–719PubMed
47.
go back to reference Lindor NM, Burgart LJ, Leontovich O et al (2002) Immunohistochemistry versus microsatellite instability testing in phenotyping colorectal tumors. J Clin Oncol 20(4):1043–1048CrossRefPubMed Lindor NM, Burgart LJ, Leontovich O et al (2002) Immunohistochemistry versus microsatellite instability testing in phenotyping colorectal tumors. J Clin Oncol 20(4):1043–1048CrossRefPubMed
48.
go back to reference Ruszkiewicz A, Bennett G, Moore J et al (2002) Correlation of mismatch repair genes immunohistochemistry and microsatellite instability status in HNPCC-associated tumours. Pathology 34(6):541–547CrossRefPubMed Ruszkiewicz A, Bennett G, Moore J et al (2002) Correlation of mismatch repair genes immunohistochemistry and microsatellite instability status in HNPCC-associated tumours. Pathology 34(6):541–547CrossRefPubMed
49.
go back to reference Schernhammer ES, Giovannucci E, Kawasaki T, Rosner B, Fuchs C, Ogino S (2009) Dietary folate, alcohol, and B vitamins in relation to LINE-1 hypomethylation in colon cancer. Gut. doi:10.1136/gut.2009.183707 Schernhammer ES, Giovannucci E, Kawasaki T, Rosner B, Fuchs C, Ogino S (2009) Dietary folate, alcohol, and B vitamins in relation to LINE-1 hypomethylation in colon cancer. Gut. doi:10.​1136/​gut.​2009.​183707
Metadata
Title
One-carbon metabolism and CpG island methylator phenotype status in incident colorectal cancer: a nested case–referent study
Authors
Bethany Van Guelpen
Anna M. Dahlin
Johan Hultdin
Vincy Eklöf
Ingegerd Johansson
Maria L. Henriksson
Inger Cullman
Göran Hallmans
Richard Palmqvist
Publication date
01-04-2010
Publisher
Springer Netherlands
Published in
Cancer Causes & Control / Issue 4/2010
Print ISSN: 0957-5243
Electronic ISSN: 1573-7225
DOI
https://doi.org/10.1007/s10552-009-9484-y

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