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GoPubMed Proteins lists recent and important papers and reviews for proteins. Page last changed on 14 Apr 2015.

O-6-methylguanine-DNA methyltransferase

Methylguanine-DNA Methyltransferase, MGMT, O6-methylguanine-DNA methyltransferase
This gene is expressed only in the liver and the encoded protein is localized mostly in the peroxisomes, where it is involved in glyoxylate detoxification. Mutations in this gene, some of which alter subcellular targetting, have been associated with type I primary hyperoxaluria. [provided by RefSeq, Jul 2008] (from NCBI)
Top mentioned proteins: HAD, AGE, CAN, p53, POLYMERASE
Papers on Methylguanine-DNA Methyltransferase
Gallic Acid Induces DNA Damage and Inhibits DNA Repair-associated Protein Expression in Human Oral Cancer SCC-4 Cells.
New
Chung et al., Tainan City, Taiwan. In Anticancer Res, 30 Apr 2015
Using western blotting it was shown that GA inhibited the protein expressions of MDC1, O(6)-methylguanine-DNA methyltransferase (MGMT), p-H2A.X, p53, DNA-dependent serine/threonine protein kinase (DNA-PK) and 14-3-3 proteins sigma (14-3-3σ) but increased p-p53, phosphate-ataxia-telangiectasia (p-H2A.X) and ataxia telangiectasia mutated and Rad3-related (p-ATR), phosphate-ataxia telangiectasia mutated (p-ATM) and breast cancer susceptibility protein 1 (BRCA1) in a 24-h treatment.
The metalloprotease-disintegrin ADAM8 contributes to temozolomide chemoresistance and enhanced invasiveness of human glioblastoma cells.
New
Nimsky et al., Marburg an der Lahn, Germany. In Neuro Oncol, 29 Apr 2015
BB-94, but not BB-2516 (ADAM8-sparing) increased TMZ sensitivity of TMZ-resistant and -nonresistant GBM cells with different O(6)-methylguanine-DNA methyltransferase states, suggesting that ADAM8 mediates chemoresistance, which was confirmed by ADAM8 knockdown, ADAM8 overexpression, or pharmacological inhibition of ADAM8.
The role of temozolomide in the treatment of aggressive pituitary tumors.
Review
New
Eloy et al., Newark, United States. In J Clin Neurosci, 12 Apr 2015
In this article, the authors review the development of temozolomide, its biochemistry and interaction with O(6)-methylguanine-DNA methyltransferase (MGMT), its role in adjuvant treatment of aggressive pituitary neoplasms, and future works that could influence the efficacy of temozolomide therapy.
CHFR methylation strongly correlates with methylation of DNA damage repair and apoptotic pathway genes in non-small cell lung cancer.
New
Herman et al., Beijing, China. In Discov Med, 31 Mar 2015
We analyzed the DNA methylation status of eight genes (CHFR, FANCF, MGMT, p16, DAPK, ASC or TMS-1, RAR-B, and CRBP1) using nested methylation-specific PCR (MSP) on over 314 paraffin-embedded, human non-small cell lung cancer samples.
The expression of p53, mgmt and egfr in brain glioma and clinical significance.
New
Liu et al., Harbin, China. In J Biol Regul Homeost Agents, Jan 2015
In order to discuss the expression of P53, MGMT (O6-methylguanine-DNA methyltransferase) and EGFR (epidermal growth factor receptor) in brain glioma and their clinical significance, this paper collected clinical features of 40 patients.
Role of MGMT as biomarker in colorectal cancer.
Review
New
Pietrantonio et al., Verona, Italy. In World J Clin Cases, Jan 2015
O(6)-methylguanine DNA methyltransferase (MGMT) gene promoter methylation plays an important role in colorectal carcinogenesis, occurring in about 30%-40% of metastatic colorectal cancer.
Glioma biology and molecular markers.
Review
New
Colman et al., Salt Lake City, United States. In Cancer Treat Res, Dec 2014
Prognostic markers in diffuse gliomas include IDH mutation, 1p/19q codeletion, and MGMT methylation, and MGMT is also a predictive marker in elderly patients with glioblastoma treated with temozolomide monotherapy.
[Management of gliomas].
Review
New
Mazeron et al., Tours, France. In Cancer Radiother, Oct 2014
O(6)-methylguanine-DNA methyltransferase (MGMT) status may help to choose between chemotherapy and radiotherapy.
Cilengitide combined with standard treatment for patients with newly diagnosed glioblastoma with methylated MGMT promoter (CENTRIC EORTC 26071-22072 study): a multicentre, randomised, open-label, phase 3 trial.
New
Impact
CENTRIC study team et al., Zürich, Switzerland. In Lancet Oncol, Sep 2014
Data from phase 2 trials suggest that it has antitumour activity as a single agent in recurrent glioblastoma and in combination with standard temozolomide chemoradiotherapy in newly diagnosed glioblastoma (particularly in tumours with methylated MGMT promoter).
Expression and methylation of DNA repair genes in lens epithelium cells of age-related cataract.
New
Guan et al., Nantong, China. In Mutat Res, Aug 2014
The promoter region of the MGMT gene was hypermethylated in ARC tissue compared to controls.
Case comparison and literature review of glioblastoma: A tale of two tumors.
Review
Ross et al., Portland, United States. In Surg Neurol Int, 2013
The following markers were assessed: O (6)-methylguanine DNA methyltransferase (MGMT) methylation, isocitrate dehydrogenase (IDH) 1 and 2 status, epidermal growth factor receptor (EGFR) amplification, phosphatase and tensin homolog (PTEN) status, Ki-67, p53, and 1p/19q status.
Dose-dense temozolomide for newly diagnosed glioblastoma: a randomized phase III clinical trial.
Impact
Mehta et al., Houston, United States. In J Clin Oncol, 2013
O(6)-methylguanine-DNA methyltransferase (MGMT) methylation status may be an important determinant of treatment response.
The somatic genomic landscape of glioblastoma.
Impact
TCGA Research Network et al., New York City, United States. In Cell, 2013
Correlative analyses confirm that the survival advantage of the proneural subtype is conferred by the G-CIMP phenotype, and MGMT DNA methylation may be a predictive biomarker for treatment response only in classical subtype GBM.
Adenovirus-mediated gene therapy with sitimagene ceradenovec followed by intravenous ganciclovir for patients with operable high-grade glioma (ASPECT): a randomised, open-label, phase 3 trial.
Impact
ASPECT Study Group et al., Hamburg, Germany. In Lancet Oncol, 2013
In a subgroup of patients with non-methylated MGMT, the HR was 1·72 (95% CI 1·15-2·56; p=0·008).
Intrinsic molecular subtypes of glioma are prognostic and predict benefit from adjuvant procarbazine, lomustine, and vincristine chemotherapy in combination with other prognostic factors in anaplastic oligodendroglial brain tumors: a report from EORTC study 26951.
Impact
French et al., Rotterdam, Netherlands. In J Clin Oncol, 2013
They are prognostic for PFS independent of clinical (age, performance status, and tumor location), molecular (1p/19q loss of heterozygosity [LOH], IDH1 mutation, and MGMT methylation), and histologic parameters.
Uncoupling of eNOS causes superoxide anion production and impairs NO signaling in the cerebral microvessels of hph-1 mice.
GeneRIF
Katusic et al., Rochester, United States. In J Neurochem, 2012
Reduced tetrahydrobiopterin bioavailability causes endothelial NOS uncoupling, increases superoxide anion production, inhibits eNOS/cGMP signaling, and imposes significant oxidative stress in the cerebral microvasculature.
Angiotensin-II and MARCKS: a hydrogen peroxide- and RAC1-dependent signaling pathway in vascular endothelium.
GeneRIF
Michel et al., Boston, United States. In J Biol Chem, 2012
a critical role for H(2)O(2) in angiotensin-II signaling to the endothelial cytoskeleton in a novel pathway that is critically dependent on MARCKS, Rac1, and c-Abl.
The prolyl hydroxylase PHD3 identifies proinflammatory macrophages and its expression is regulated by activin A.
GeneRIF
Corbí et al., Madrid, Spain. In J Immunol, 2012
These results indicate that EGLN3 gene expression in macrophages is dependent on activin A
Loss of the oxygen sensor PHD3 enhances the innate immune response to abdominal sepsis.
GeneRIF
Schneider et al., Heidelberg, Germany. In J Immunol, 2012
It is concluded that impairment of PHD3 enzyme function aggravates the clinical course of abdominal sepsis
PHD3-dependent hydroxylation of HCLK2 promotes the DNA damage response.
GeneRIF
Patterson et al., Chapel Hill, United States. In J Clin Invest, 2012
mice lacking PHD3 were resistant to the effects of ionizing radiation and had decreased thymic apoptosis, a biomarker of genomic integrity
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