Skip to content

PARP1 hyperactivity stalls translation and triggers stress granule formation following DNA damage.

Aug 2026 · Journal of Cell Biology · Vol 225 8 · 0 citations
Medicine

TL;DR

Findings link PARP1 activity to translational control and SG formation, which may protect against cell death following DNA damage, and provide insight into PARP1- and stress granule-associated diseases, including cancer and neurodegeneration.

View source

Similar papers

Open access Nov 2025

Oxidative stress triggers RNAPII arrest through PARylation and DNA damage

It is demonstrated that oxidative stress temporarily halts RNAPII pause release and arrests the progression of elongation complexes within the gene body, and it is found that the restriction of initiation and early elongation complexes is regulated by PARylation, whereas recovery of RNAPII arrested within the gene body...

Q. Thomas, Liyang Wu, E. Lesage et al. · 1 citation · ⚡1
Open access Aug 2026

FMRP modulates stress granule remodelling in cancer cells via G3BP1

Findings support a role for FMRP as a regulator of SG dynamics and identify the FMRP–G3BP1 axis as a candidate pathway for further investigation in aggressive and treatment-resistant cancers and in tumor adaptation to oxidative stress across distinct cellular contexts and survival programs.

Elena Santonico, Federica Ferrentino, C. Cirotti et al. · 0 citations
Open access Jul 2026

Cellular stress triggers degradation and global redistribution of RNAPII

This work shows that RNAPII is degraded during many types of cellular stresses, and redistribution is vital for cell survival, as degradation blockage resulted in the loss of RNAPII from low GC promoters and compromised stress response from disrupted cell adhesion to increased apoptosis.

Hansong Qi, Kang-Hsin Chen, Ning Liu et al. · 0 citations
Open access Aug 2026

DePARylation prevents DNA replication-driven PARP1 condensation

It is demonstrated that PARGi prolongs PARP1 residence at damaged chromatin in a manner mechanistically distinct from PARP-inhibitor-induced trapping, and dePARylation prevents the rapid nuclear extrusion of PARP1 upon S-phase entry.

Petar-Bogomil Kanev, Vanya Milanova, Preslava Berkova et al. · 0 citations
Open access Sep 2026

GSK3β and Plk1 sequentially phosphorylate ATP–citrate lyase to promote homologous recombination

An AKT-GSK3β-Plk1-ACLY signaling module that links the DDR to nuclear metabolism is defined, revealing a critical mechanism by which kinase signaling facilitates acetyl-CoA–dependent chromatin remodeling to preserve genome integrity.

Shi-Nan Zhou, Xin-Yu Zhou, Qin-Fu Chen et al. · 0 citations

We use cookies to run the site and, with your consent, for analytics and to show ads. See our Cookie Policy.