Results 21 to 30 of about 118,283 (296)

Neurological and histological consequences induced by in vivo cerebral oxidative stress: evidence for beneficial effects of SRT1720, a sirtuin 1 activator, and sirtuin 1-mediated neuroprotective effects of poly(ADP-ribose) polymerase inhibition.

open access: yesPLoS ONE, 2014
Poly(ADP-ribose)polymerase and sirtuin 1 are both NAD(+)-dependent enzymes. In vitro oxidative stress activates poly(ADP-ribose)polymerase, decreases NAD(+) level, sirtuin 1 activity and finally leads to cell death.
Cindy Gueguen   +4 more
doaj   +1 more source

Modulation of energy homeostasis in maize and Arabidopsis to develop lines tolerant to drought, genotoxic and oxidative stresses [PDF]

open access: yes, 2017
Abiotic stresses cause crop losses worldwide that reduce the average yield by more than 50%. Due to the high energy consumed to enhance the respiration rates, the excessive reactive oxygen species release provokes cell death and, ultimately, whole plant ...
Aesaert, Stijn   +5 more
core   +2 more sources

RNA Regulation by Poly(ADP-Ribose) Polymerases [PDF]

open access: yesMolecular Cell, 2015
Posttranscriptional regulation of RNA facilitates the fine-tuning of gene expression. It occurs through multiple pathways that include the nuclear processing of mRNA and its precursors, mRNA silencing, regulation of mRNA decay, and regulation of translation. Poly(ADP-ribose) polymerases (PARPs), enzymes that modify target proteins with ADP-ribose, play
Bock, Florian J.   +2 more
openaire   +2 more sources

PARG suppresses tumorigenesis and downregulates genes controlling angiogenesis, inflammatory response, and immune cell recruitment

open access: yesBMC Cancer, 2022
Chemokines are highly expressed in tumor microenvironment and play a critical role in all aspects of tumorigenesis, including the recruitment of tumor-promoting immune cells, activation of cancer-associated fibroblasts, angiogenesis, metastasis, and ...
Sarah Johnson   +5 more
doaj   +1 more source

Recruitment of ubiquitin-activating enzyme UBA1 to DNA by poly(ADP-ribose) promotes ATR signalling

open access: yesLife Science Alliance, 2018
Human but not yeast UBA1 binds poly(ADP-ribose) polymers via a solvent-exposed and positively charged patch. Poly(ADP-ribose) polymerase 1–dependent recruitment of UBA1 to DNA ensures ataxia-telangiectasia and RAD3-related activation.
Ramhari Kumbhar   +8 more
doaj   +1 more source

Role of poly(ADP-ribose)polymerase 2 in DNA repair [PDF]

open access: yes, 2012
Poly(ADP-ribosyl)ation is a posttranslational protein modification significant for the genomic stability and cell survival in response to DNA damage.
Khodyreva S. N.   +2 more
core   +2 more sources

Poly(ADP-ribose) in the skin and in melanomas.

open access: yesHistology and histopathology, 2012
Cutaneous melanoma (CM) and uveal melanoma (UM) represent the most aggressive pigment cell tumor types. Our investigation examined the signaling molecule poly(ADP-ribose) (PAR) in CM and UM. We have demonstrated PAR in keratinocytes, sebocytes, hair follicles, endothelial cells and in subcutaneous adipocytes in the normal skin indicating that PAR may ...
Géhl, Zsuzsanna   +8 more
openaire   +3 more sources

Poly(ADP-ribose)polymerase activity controls plant growth by promoting leaf cell number [PDF]

open access: yes, 2014
A changing global environment, rising population and increasing demand for biofuels are challenging agriculture and creating a need for technologies to increase biomass production.
Claeys, Hannes   +8 more
core   +7 more sources

Nucleolar-nucleoplasmic shuttling of TARG1 and its control by DNA damage-induced poly-ADP-ribosylation and by nucleolar transcription

open access: yesScientific Reports, 2018
Macrodomains are conserved protein folds associated with ADP-ribose binding and turnover. ADP-ribosylation is a posttranslational modification catalyzed primarily by ARTD (aka PARP) enzymes in cells.
Mareike Bütepage   +15 more
doaj   +1 more source

Selective down-regulation of nuclear poly(ADP-ribose) glycohydrolase. [PDF]

open access: yesPLoS ONE, 2009
The formation of ADP-ribose polymers on target proteins by poly(ADP-ribose) polymerases serves a variety of cell signaling functions. In addition, extensive activation of poly(ADP-ribose) polymerase-1 (PARP-1) is a dominant cause of cell death in ...
David M Burns   +4 more
doaj   +1 more source

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