Results 51 to 60 of about 6,989 (168)

Twisting the End Game: How Telomere Chromatin Modifications Shape Telomere Maintenance

Aging Cell, Volume 25, Issue 9, September 2026.
Chromatin modifications on telomeres are linked to the mode of telomere DNA replication. A coupled feedforward loop model is proposed based on these to lock the ALT cancer cells in this alternative mode of telomere replication. ABSTRACT Cell division inevitably shortens telomeric DNA owing to the end‐replication problem.
Jie Wang, Yuehui Su, Chao Chen, Yueying Li, Jiajia Han, Liping Du, Liyun Zheng, Ya‐Long Dang, Ying Peng   +8 more
wiley   +1 more source

Radiation-induced mitotic catastrophe in PARG-deficient cells [PDF]

Journal of Cell Science, 2009
Poly(ADP-ribosyl)ation is a post-translational modification of proteins involved in the regulation of chromatin structure, DNA metabolism, cell division and cell death. Through the hydrolysis of poly(ADP-ribose) (PAR), Poly(ADP-ribose) glycohydrolase (PARG) has a crucial role in the control of life-and-death balance following DNA insult.
Amé, Jean-Christophe, Fouquerel, Elise, Gauthier, Laurent R, Biard, Denis, Boussin, François D, Dantzer, Françoise, Murcia, Gilbert, Schreiber, Valérie   +7 more
openaire   +2 more sources

Targeting PARG induces tumor cell growth inhibition and antitumor immune response by reducing phosphorylated STAT3 in ovarian cancer

Journal for ImmunoTherapy of Cancer
Background Ovarian cancer is the most lethal gynecological malignancy, with limited treatment options after failure of standard therapies. Despite the potential of poly(ADP-ribose) polymerase inhibitors in treating DNA damage response (DDR)-deficient ...
Lorna Rodriguez-Rodriguez, Rui Huang, Mihaela Cristea, Qianqian Zhao, Adrian Kohut, Hua Yu, Mihae Song, Antons Martincuks, Chunyan Zhang, Edward W Wang, Theresa Austria, Yi-Jia Li, Nicole Lugo Santiago, Rosemarie Martinez Borrero, Binghui Shen   +14 more
doaj   +1 more source

Genome Segregation by the Venus Flytrap Mechanism: Probing the Interaction Between the ParF ATPase and the ParG Centromere Binding Protein

Frontiers in Molecular Biosciences, 2020
The molecular events that underpin genome segregation during bacterial cytokinesis have not been fully described. The tripartite segrosome complex that is encoded by the multiresistance plasmid TP228 in Escherichia coli is a tractable model to decipher ...
Marisa Caccamo, Aneta Dobruk-Serkowska, Fernando Rodríguez-Castañeda, Cecilia Pennica, Daniela Barillà, Finbarr Hayes   +5 more
doaj   +1 more source

ROS‐ATM‐CBP axis‐mediated PARP1 lactylation aggravates doxorubicin‐induced cardiotoxicity

Clinical and Translational Medicine, Volume 16, Issue 8, August 2026.
ROS function as signalling molecules to promote CBP‐mediated PARP1 lactylation in an ATM dependent manner, which induces PARP1 PARylation and ultimate cell apoptosis. CBP and SIRT1 as specific lactyltransferase and delactylase of PARP1. Lactylation of PARP1 depends on the LDHA activity and lactate production.
Wenbin Wang, Yingxian Sun
wiley   +1 more source

Replication catastrophe is responsible for intrinsic PAR glycohydrolase inhibitor-sensitivity in patient-derived ovarian cancer models

Journal of Experimental & Clinical Cancer Research, 2021
Background Patients with ovarian cancer often present at advanced stage and, following initial treatment success, develop recurrent drug-resistant disease. PARP inhibitors (PARPi) are yielding unprecedented survival benefits for women with BRCA-deficient
Camilla Coulson-Gilmer, Robert D. Morgan, Louisa Nelson, Bethany M. Barnes, Anthony Tighe, René Wardenaar, Diana C. J. Spierings, Helene Schlecht, George J. Burghel, Floris Foijer, Sudha Desai, Joanne C. McGrail, Stephen S. Taylor   +12 more
doaj   +1 more source

Metabolic Regulation of Macrophages in Health and Disease

MedComm, Volume 7, Issue 8, August 2026.
Extracellular metabolites drive metabolic rewiring of glucose, lipid, and amino acid pathways in macrophages, steering their polarization toward pro‐ or anti‐inflammatory phenotypes and shaping a wide range of disease processes. Macrophages from different tissues display distinct metabolic signatures, and therapeutic strategies that target these ...
Shan Huang, Yu Zhang, Jiali Min, Jiahui Yang, Yuchen Li, Hao Zhang, Shanshan Liu   +6 more
wiley   +1 more source

Suppression of ADP-ribosylation reversal triggers cell vulnerability to alkylating agents

Neoplasia: An International Journal for Oncology Research
The ADP-ribosyl hydrolases PARG and ARH3 counteract PARP enzymatic activity by removing ADP-ribosylation. PARG and ARH3 activities have a synthetic lethal effect; however, the specific molecular mechanisms underlying this response remain unknown.
Rocco Caggiano, Evgeniia Prokhorova, Lena Duma, Kira Schützenhofer, Raffaella Lauro, Giuliana Catara, Rosa Marina Melillo, Angela Celetti, Rebecca Smith, S John Weroha, Scott H Kaufmann, Ivan Ahel, Luca Palazzo   +12 more
doaj   +1 more source

The Polymers of Life: Exploring Cellular Function Through Polymer Concepts

Advanced Science, Volume 13, Issue 33, 15 June 2026.
Biomolecular phase separation reveals that a hidden layer of cellular organization is governed by the principles of polymer science. This review bridges polymer physics and cell biology, offering a primer on fundamental concepts, proposing a framework for interrogating cellular function, and synthesizing biophysical methods for decoding macromolecular ...
Mark Chen, Ashutosh Chilkoti
wiley   +1 more source

Reef fish assemblages impacted by sponges overgrowing corals

Ecosphere, Volume 17, Issue 6, June 2026.
Abstract Numerous stressors are driving long‐term declines in coral cover on coral reefs, significantly impacting reef fish biodiversity and community structure. The benthic space made available by declining coral cover is often occupied by increases in other organisms, including macroalgae, encrusting ascidians, and sponges.
Saúl González‐Murcia, Merrick Ekins, Christopher N. Battershill, Geoffrey P. Jones   +3 more
wiley   +1 more source