Targeting DNA damage response pathways in cancer

FJ Groelly, M Fawkes, RA Dagg, AN Blackford… - Nature Reviews …, 2023 - nature.com
Cells have evolved a complex network of biochemical pathways, collectively known as the
DNA damage response (DDR), to prevent detrimental mutations from being passed on to …

Clinical and translational advances in ovarian cancer therapy

PA Konstantinopoulos, UA Matulonis - Nature Cancer, 2023 - nature.com
Ovarian cancer is an aggressive disease that is frequently detected at advanced stages and
is initially very responsive to platinum-based chemotherapy. However, the majority of …

POLQ seals post-replicative ssDNA gaps to maintain genome stability in BRCA-deficient cancer cells

O Belan, M Sebald, M Adamowicz, R Anand… - Molecular cell, 2022 - cell.com
POLQ is a key effector of DSB repair by microhomology-mediated end-joining (MMEJ) and is
overexpressed in many cancers. POLQ inhibitors confer synthetic lethality in HR and …

ADP-ribosylation from molecular mechanisms to therapeutic implications

MJ Suskiewicz, E Prokhorova, JGM Rack, I Ahel - Cell, 2023 - cell.com
ADP-ribosylation is a ubiquitous modification of biomolecules, including proteins and
nucleic acids, that regulates various cellular functions in all kingdoms of life. The recent …

Leveraging the replication stress response to optimize cancer therapy

E Cybulla, A Vindigni - Nature Reviews Cancer, 2023 - nature.com
High-fidelity DNA replication is critical for the faithful transmission of genetic information to
daughter cells. Following genotoxic stress, specialized DNA damage tolerance pathways …

Temporally distinct post-replicative repair mechanisms fill PRIMPOL-dependent ssDNA gaps in human cells

S Tirman, A Quinet, M Wood, A Meroni, E Cybulla… - Molecular cell, 2021 - cell.com
PRIMPOL repriming allows DNA replication to skip DNA lesions, leading to ssDNA gaps.
These gaps must be filled to preserve genome stability. Using a DNA fiber approach to …

REV1-Polζ maintains the viability of homologous recombination-deficient cancer cells through mutagenic repair of PRIMPOL-dependent ssDNA gaps

A Taglialatela, G Leuzzi, V Sannino, R Cuella-Martin… - Molecular cell, 2021 - cell.com
BRCA1/2 mutant tumor cells display an elevated mutation burden, the etiology of which
remains unclear. Here, we report that these cells accumulate ssDNA gaps and spontaneous …

POLθ prevents MRE11-NBS1-CtIP-dependent fork breakage in the absence of BRCA2/RAD51 by filling lagging-strand gaps

A Mann, MA Ramirez-Otero, A De Antoni, YW Hanthi… - Molecular Cell, 2022 - cell.com
POLθ promotes repair of DNA double-strand breaks (DSBs) resulting from collapsed forks in
homologous recombination (HR) defective tumors. Inactivation of POLθ results in synthetic …

PARP inhibition impedes the maturation of nascent DNA strands during DNA replication

A Vaitsiankova, K Burdova, M Sobol… - Nature structural & …, 2022 - nature.com
Abstract Poly (ADP-ribose) polymerase 1 (PARP1) is implicated in the detection and
processing of unligated Okazaki fragments and other DNA replication intermediates …

The DNA damage response and inflammation in cancer

V Klapp, B Álvarez-Abril, G Leuzzi, G Kroemer, A Ciccia… - Cancer discovery, 2023 - AACR
Genomic stability in normal cells is crucial to avoid oncogenesis. Accordingly, multiple
components of the DNA damage response (DDR) operate as bona fide tumor suppressor …