Results 71 to 80 of about 3,094 (198)

Mono-ADP-ribosylation, a MARylationmultifaced modification of protein, DNA and RNA: characterizations, functions and mechanisms

Cell Death Discovery
The functional alterations of proteins and nucleic acids mainly rely on their modifications. ADP-ribosylation is a NAD+-dependent modification of proteins and, in some cases, of nucleic acids.
Hao Wu, Anqi Lu, Jiuzhi Yuan, Yang Yu, Chongning Lv, Jincai Lu   +5 more
doaj   +1 more source

Loss‐of‐function genetic screen unveils synergistic efficacy of PARG inhibition with combined 5‐fluorouracil and irinotecan treatment in colorectal cancer

Clinical and Translational Medicine, Volume 15, Issue 12, December 2025.
LOF screening identified PARG as a modulator of CRC response to FUIRI treatment. HT29 PARG‐KO cells showed increased PAR, DNA damage, apoptosis, and 5FU sensitivity. Pharmacological PARG inhibition synergised with 5FU and SN38 in CRC cell lines. HT29 PARG‐KO tumours exhibited increased sensitivity to 5FU treatment in vivo.
Cristina Queralt, Cristina Moreta‐Moraleda, Marta Costa, Ferran Grau‐Leal, Jeannine Diesch, Carla Vendrell‐Ayats, Eva Musulén, Roni H G Wright, Cristina Bugés, José Luis Manzano, Sara Cabrero‐de las Heras, Johannes Zuber, Marcus Buschbeck, Sonia‐V Forcales, Eva Martínez‐Balibrea   +14 more
wiley   +1 more source

Poly(ADP-ribose) polymerase 1 orchestrates vascular smooth muscle cell homeostasis in arterial disease

Experimental and Molecular Medicine
Smooth muscle cells are remarkably plastic. Their reversible differentiation is required for growth and wound healing but also contributes to pathologies such as atherosclerosis and restenosis.
Wenjing Xu, Yichen Wu, Ruiqi Mao, Yujie Jia, Hao Jiang, Fengxiao Zhang, Dan Huang, Ximiao He, Cheng Wang, Kai Huang   +9 more
doaj   +1 more source

The Ageing Process Affects the Antioxidant Defences and the Poly (ADPribosyl)ation Activity in Cistus Incanus L. Leaves

Antioxidants, 2019
The ageing process in living organisms is characterised by the accumulation of several deleterious changes occurring in cells and tissues. The increase of reactive oxygen species with the advancement of age is responsible for the oxidative damage to ...
Carmen Arena, Luca Vitale, Anna Rita Bianchi, Carmela Mistretta, Ermenegilda Vitale, Costantino Parisi, Giulia Guerriero, Vincenzo Magliulo, Anna De Maio   +8 more
doaj   +1 more source

Translational Aspects of DNA Damage Repair in Optimizing Cancer Chemotherapy

Advanced Genetics, Volume 6, Issue 4, December 2025.
This review systematically delineates the fundamental role and recent advancements in DNA damage response (DDR) within the context of cancer chemotherapy. Particular emphasis is directed toward exploring the interplay between DDR status and chemosensitivity.
Anqi Lin, Jinyue He, Aimin Jiang, Jian Zhang, Quan Cheng, Hengguo Zhang, Wenjun Mao, Peng Luo   +7 more
wiley   +1 more source

LAP2α preserves genome integrity through assisting RPA deposition on damaged chromatin

Genome Biology, 2022
Background Single-stranded DNA (ssDNA) coated with replication protein A (RPA) acts as a key platform for the recruitment and exchange of genome maintenance factors in DNA damage response. Yet, how the formation of the ssDNA-RPA intermediate is regulated
Kaiwen Bao, Qi Zhang, Shuai Liu, Nan Song, Qiushi Guo, Ling Liu, Shanshan Tian, Jihui Hao, Yi Zhu, Kai Zhang, Ding Ai, Jie Yang, Zhi Yao, Roland Foisner, Lei Shi   +14 more
doaj   +1 more source

PARP Activity Is Essential for Retinal Photoreceptor Survival in the Human Homologous RhoI255del Mouse Model for Autosomal Dominant Retinitis Pigmentosa

Journal of Neurochemistry, Volume 169, Issue 12, December 2025.
Inhibition of PARP with different selective inhibitors (PARPi). Olaparib (Ola), Saruparib (Sar), INO1001 (INO), and nicotinamide (NAM) all increase photoreceptor cell death in the RhoI255del/+ mouse model for autosomal dominant retinitis pigmentosa.
Yu Zhu, Azdah Hamed A. Fallatah, Kangwei Jiao, Mathias W. Seeliger, François Paquet‐Durand   +4 more
wiley   +1 more source

Poly(ADP-ribosyl)ation and Epigenetics: Is CTCF PARt of the Plot? [PDF]

Cell Cycle, 2004
Despite the fact that the poly(ADP-ribose) (PAR) modification of proteins has been known for more than four decades, there is no unifying picture of the pathways governed by this process. While the function of poly(ADP-ribosyl)ation (PARlation) has shown to be traditionally associated with DNA repair and genotoxic stress, there is an emerging view that
Elena, Klenova, Rolf, Ohlsson
openaire   +2 more sources

The nicotinamide hypothesis revisited—plant defense signaling integrating PARP, nicotinamide, nicotinic acid, epigenetics, and glutathione

FEBS Letters, Volume 599, Issue 22, Page 3355-3368, November 2025.
Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley   +1 more source

The Role of PARPs in Inflammation—And Metabolic—Related Diseases: Molecular Mechanisms and Beyond

Cells, 2019
Poly(ADP-ribosyl)ation (PARylation) is an essential post-translational modification catalyzed by poly(ADP-ribose) polymerase (PARP) enzymes. Poly(ADP-ribose) polymerase 1 (PARP1) is a well-characterized member of the PARP family.
Yueshuang Ke, Chenxin Wang, Jiaqi Zhang, Xiyue Zhong, Ruoxi Wang, Xianlu Zeng, Xueqing Ba   +6 more
doaj   +1 more source