Results 61 to 70 of about 41,016 (281)

Mismatch repair proteins play a role in ATR activation upon temozolomide treatment in MGMT-methylated glioblastoma

open access: yesScientific Reports, 2022
The methylation status of the O6-methylguanine methyltransferase (MGMT) gene promoter has been widely accepted as a prognostic biomarker for treatment with the alkylator, temozolomide (TMZ). In the absence of promoter methylation, the MGMT enzyme removes
Sachita Ganesa   +3 more
doaj   +1 more source

Endogenously induced DNA double strand breaks arise in heterochromatic DNA regions and require ataxia telangiectasia mutated and Artemis for their repair

open access: yesNucleic Acids Research, 2011
Ataxia telangiectasia (ATM) mutated and Artemis, the proteins defective in ataxia telangiectasia and a class of Radiosensitive-Severe Combined Immunodeficiency (RS-SCID), respectively, function in the repair of DNA double strand breaks (DSBs), which ...
L. Woodbine   +4 more
semanticscholar   +1 more source

Activation of mammalian Chk1 during DNA replication arrest: a role for Chk1 in the intra-S phase checkpoint monitoring replication origin firing [PDF]

open access: yes, 2001
Checkpoints maintain order and fidelity in the cell cycle by blocking late-occurring events when earlier events are improperly executed. Here we describe evidence for the participation of Chk1 in an intra-S phase checkpoint in mammalian cells.
Feijoo, Carmen   +6 more
core   +2 more sources

Ataxia telangiectasia-mutated protein and DNA-dependent protein kinase have complementary V(D)J recombination functions [PDF]

open access: yesProceedings of the National Academy of Sciences, 2011
Antigen receptor variable region exons are assembled during lymphocyte development from variable (V), diversity (D), and joining (J) gene segments. Each germ-line gene segment is flanked by recombination signal sequences (RSs). Recombination-activating gene endonuclease initiates V(D)J recombination by cleaving a pair of gene segments at their junction
Shan, Zha   +7 more
openaire   +2 more sources

Cellular Radiosensitivity: How much better do we understand it? [PDF]

open access: yes, 2009
Purpose: Ionizing radiation exposure gives rise to a variety of lesions in DNA that result in genetic instability and potentially tumorigenesis or cell death.
Agrawal A   +214 more
core   +1 more source

Adipose-Derived Mesenchymal Stem Cells Inhibit JNK-Mediated Mitochondrial Retrograde Pathway to Alleviate Acetaminophen-Induced Liver Injury

open access: yesAntioxidants, 2023
Acetaminophen (APAP) is the major cause of drug-induced liver injury, with limited treatment options. APAP overdose invokes excessive oxidative stress that triggers mitochondria-to-nucleus retrograde pathways, contributing to APAP-induced liver injury ...
Yelei Cen   +5 more
doaj   +1 more source

Nitric Oxide Induces Ataxia Telangiectasia Mutated (ATM) Protein-dependent γH2AX Protein Formation in Pancreatic β Cells [PDF]

open access: yesJournal of Biological Chemistry, 2014
In this study, the effects of cytokines on the activation of the DNA double strand break repair factors histone H2AX (H2AX) and ataxia telangiectasia mutated (ATM) were examined in pancreatic β cells. We show that cytokines stimulate H2AX phosphorylation (γH2AX formation) in rat islets and insulinoma cells in a nitric oxide- and ATM-dependent manner ...
Bryndon J, Oleson   +4 more
openaire   +2 more sources

KDM7A and KDM1A inhibition suppresses tumour promoting pathways in prostate cancer

open access: yesMolecular Oncology, EarlyView.
Treatment resistance is a major challenge for patients with advanced prostate cancer. This study examined an alternative approach to target the major prostate cancer‐promoting pathway by targeting epigenetic factors, whose levels are higher in tumours.
Jennie N Jeyapalan   +16 more
wiley   +1 more source

Homeodomain Proteins Directly Regulate ATM Kinase Activity

open access: yesCell Reports, 2018
Summary: Ataxia-telangiectasia mutated (ATM) is a serine/threonine kinase that coordinates the response to DNA double-strand breaks and oxidative stress.
Tanya E. Johnson   +8 more
doaj   +1 more source

Ataxia-Telangiectasia Mutated (ATM) Protein Signaling Participates in Development of Pulmonary Arterial Hypertension in Rats [PDF]

open access: yesMedical Science Monitor, 2017
BACKGROUND Previous studies revealed physiological and pathogenetic similarity between vascular smooth muscles cells with severe pulmonary arterial hypertension and tumors. The DNA damage response was found in both pulmonary arterial hypertension (PAH) cells and tumors. The ataxia-telangiectasia mutated proteins (ATM) pathway is considered an important
Hu, Fan   +4 more
openaire   +2 more sources

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