RGD Reference Report - Genetic variants involved in oxidative stress, base excision repair, DNA methylation, and folate metabolism pathways influence myeloid neoplasias susceptibility and prognosis. - Rat Genome Database

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Genetic variants involved in oxidative stress, base excision repair, DNA methylation, and folate metabolism pathways influence myeloid neoplasias susceptibility and prognosis.

Authors: Goncalves, AC  Alves, R  Baldeiras, I  Cortesao, E  Carda, JP  Branco, CC  Oliveiros, B  Loureiro, L  Pereira, A  Nascimento Costa, JM  Sarmento-Ribeiro, AB  Mota-Vieira, L 
Citation: Goncalves AC, etal., Mol Carcinog. 2016 Mar 7. doi: 10.1002/mc.22478.
RGD ID: 11061784
Pubmed: PMID:26950655   (View Abstract at PubMed)
DOI: DOI:10.1002/mc.22478   (Journal Full-text)

Myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML) share common features: elevated oxidative stress, DNA repair deficiency, and aberrant DNA methylation. We performed a hospital-based case-control study to evaluate the association in variants of genes involved in oxidative stress, folate metabolism, DNA repair, and DNA methylation with susceptibility and prognosis of these malignancies. To that end, 16 SNPs (one per gene: CAT, CYBA, DNMT1, DNMT3A, DNMT3B, GPX1, KEAP1, MPO, MTRR, NEIL1, NFE2F2, OGG1, SLC19A1, SOD1, SOD2, and XRCC1) were genotyped in 191 patients (101 MDS and 90 AML) and 261 controls. We also measured oxidative stress (reactive oxygen species/total antioxidant status ratio), DNA damage (8-hydroxy-2'-deoxyguanosine), and DNA methylation (5-methylcytosine) in 50 subjects (40 MDS and 10 controls). Results showed that five genes (GPX1, NEIL1, NFE2L2, OGG1, and SOD2) were associated with MDS, two (DNMT3B and SLC19A1) with AML, and two (CYBA and DNMT1) with both diseases. We observed a correlation of CYBA TT, GPX1 TT, and SOD2 CC genotypes with increased oxidative stress levels, as well as NEIL1 TT and OGG1 GG genotypes with higher DNA damage. The 5-methylcytosine levels were negatively associated with DNMT1 CC, DNMT3A CC, and MTRR AA genotypes, and positively with DNMT3B CC genotype. Furthermore, DNMT3A, MTRR, NEIL1, and OGG1 variants modulated AML transformation in MDS patients. Additionally, DNMT3A, OGG1, GPX1, and KEAP1 variants influenced survival of MDS and AML patients. Altogether, data suggest that genetic variability influence predisposition and prognosis of MDS and AML patients, as well AML transformation rate in MDS patients. (c) 2016 Wiley Periodicals, Inc.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
GPX1Humanacute myeloid leukemia disease_progressionIAGP DNA:SNP: :c.599C>T (rs1050450) (human)RGD 
Gpx1Ratacute myeloid leukemia disease_progressionISOGPX1 (Homo sapiens)DNA:SNP: :c.599C>T (rs1050450) (human)RGD 
Gpx1Mouseacute myeloid leukemia disease_progressionISOGPX1 (Homo sapiens)DNA:SNP: :c.599C>T (rs1050450) (human)RGD 

Objects Annotated

Genes (Rattus norvegicus)
Gpx1  (glutathione peroxidase 1)

Genes (Mus musculus)
Gpx1  (glutathione peroxidase 1)

Genes (Homo sapiens)
GPX1  (glutathione peroxidase 1)


Additional Information