Results 71 to 80 of about 125,404 (295)

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Lignin Mimicking Protein Methylation Augments the Efficacy of FOLFOX Chemotherapy by Anchoring Thymidylate Synthase

open access: yesAdvanced Materials, EarlyView.
Lignin‐mimicking protein methylation can enhance the efficacy and mitigate the toxicity of the classic FOLFOX chemotherapy regimen. ABSTRACT FOLFOX has served as the standard chemotherapy regimen for advanced stages, specifically in the treatment of pancreatic, colorectal, and bladder cancers.
Shiyao Song   +14 more
wiley   +1 more source

Effects of poly (ADP-ribose) polymerase-1 (PARP-1) inhibition on sulfur mustard-induced cutaneous injuries in vitro and in vivo [PDF]

open access: yesPeerJ, 2016
Early studies with first-generation poly (ADP-ribose) polymerase (PARP) inhibitors have already indicated some therapeutic potential for sulfur mustard (SM) injuries.
Feng Liu   +10 more
doaj   +2 more sources

PARP-1 inhibitory activity and docking score data for the most promising hits.

open access: yes, 2017
a) PARP-1 inhibition was determined using HT Universal Colorimetric PARP Assay Kit (Cat #4677-096-k). *Docking score values of both possible NSC86342cis diastereomers.
Giorgio Colombo (65952)   +6 more
core   +1 more source

Loss of E3 Ubiquitin Ligase RINES via CpG Methylation Relieves Suppression of STAT3 and MYC, Facilitating Multiple Tumorigeneses

open access: yesAdvanced Science, EarlyView.
Dysregulated protein modifications drive tumorigenesis. RINES, an E3 ubiquitin ligase, represses tumor cell proliferation and metastasis by facilitating RING domain‐dependent, ubiquitin–proteasome‐mediated degradation of STAT3 and MYC, which consequently restrains cancer stemness and oncogenic progression.
Lili Li   +8 more
wiley   +1 more source

Stress-Induced PARP Activation Mediates Recruitment of Drosophila Mi-2 to Promote Heat Shock Gene Expression [PDF]

open access: yes, 2011
Eukaryotic cells respond to genomic and environmental stresses, such as DNA damage and heat shock (HS), with the synthesis of poly-ADP-ribose] (PAR) at specific chromatin regions, such as DNA breaks or HS genes, by PAR polymerases (PARP). Little is known
Renate Renkawitz-Pohl   +14 more
core   +2 more sources

O‐GlcNAcylation Regulation of SNAP29‐Dependent Autophagy Activation Dictates Chemoresistance in Gastric Cancer

open access: yesAdvanced Science, EarlyView.
Model illustrating the proposed mechanism by which chemotherapy‐induced downregulation of OGT disrupts SNAP29 O‐GlcNAcylation, promoting STX17‐SNAP29‐VAMP8 SNARE complex assembly and protective autophagy, leading to chemoresistance, which in turn establishes a feedforward loop to perpetuate drug tolerance.
Liang Tang   +9 more
wiley   +1 more source

Evidence for Decreased Nucleolar PARP-1 as an Early Marker of Cognitive Impairment

open access: yesNeural Plasticity, 2019
Poly(ADP-ribose) polymerase-1 (PARP-1) is a nuclear protein that regulates gene expression through poly(ADP)-ribosylation, resulting in the loosening of chromatin structure.
Matthew Regier   +5 more
doaj   +1 more source

Poly(ADP-ribose) Polymerase-1 in the Nervous System

open access: yesNeurobiology of Disease, 2000
Poly(ADP-ribose) polymerase-1 (PARP-1) is a nuclear enzyme, activated by DNA strand breaks to participate in DNA repair. Overactivation of PARP by cellular insults depletes its substrate NAD+ and then ATP, leading to a major energy deficit and cell death.
Hyo Chol Ha, Solomon H. Snyder
doaj   +1 more source

PARP inhibitors as anticancer agents

open access: yes, 2021
The PARP enzyme family is a heterogeneous group of enzymes that are involved in a myriad of intracellular processes from maintaining genomic integrity, modulating inflammatory responses, and regulating cellular metabolism, to name a few.
Oladapo, Emmanuel Taiwo
core  

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