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Polθ inhibitors elicit BRCA-gene synthetic lethality and target PARP inhibitor resistance.
(NATURE RESEARCH, 2021-06-17)
To identify approaches to target DNA repair vulnerabilities in cancer, we discovered nanomolar potent, selective, low molecular weight (MW), allosteric inhibitors of the polymerase function of DNA polymerase Polθ, including ...
Targeting TRIM37-driven centrosome dysfunction in 17q23-amplified breast cancer.
(NATURE PORTFOLIO, 2020-09-17)
Genomic instability is a hallmark of cancer, and has a central role in the initiation and development of breast cancer1,2. The success of poly-ADP ribose polymerase inhibitors in the treatment of breast cancers that are ...
Clinical BRCA1/2 Reversion Analysis Identifies Hotspot Mutations and Predicted Neoantigens Associated with Therapy Resistance.
(AMER ASSOC CANCER RESEARCH, 2020-10-01)
Reversion mutations in BRCA1 or BRCA2 are associated with resistance to PARP inhibitors and platinum. To better understand the nature of these mutations, we collated, codified, and analyzed more than 300 reversions. This ...
Sirtuin inhibition is synthetic lethal with BRCA1 or BRCA2 deficiency.
(NATURE PORTFOLIO, 2021-11-08)
PARP enzymes utilise NAD+ as a co-substrate for their enzymatic activity. Inhibition of PARP1 is synthetic lethal with defects in either BRCA1 or BRCA2. In order to assess whether other genes implicated in NAD+ metabolism ...
The ubiquitin-dependent ATPase p97 removes cytotoxic trapped PARP1 from chromatin.
(NATURE PORTFOLIO, 2022-01-01)
Poly (ADP-ribose) polymerase (PARP) inhibitors elicit antitumour activity in homologous recombination-defective cancers by trapping PARP1 in a chromatin-bound state. How cells process trapped PARP1 remains unclear. Using ...
A HUWE1 defect causes PARP inhibitor resistance by modulating the BRCA1-∆11q splice variant.
(SPRINGERNATURE, 2023-09-01)
Although PARP inhibitors (PARPi) now form part of the standard-of-care for the treatment of homologous recombination defective cancers, de novo and acquired resistance limits their overall effectiveness. Previously, ...
Longitudinal profiling identifies co-occurring BRCA1/2 reversions, TP53BP1, RIF1 and PAXIP1 mutations in PARP inhibitor-resistant advanced breast cancer.
(Elsevier BV, 2024-01-19)
BACKGROUND: Resistance to therapies that target homologous recombination deficiency (HRD) in breast cancer limits their overall effectiveness. Multiple, preclinically validated, mechanisms of resistance have been proposed, ...
MND1 and PSMC3IP control PARP inhibitor sensitivity in mitotic cells.
(CELL PRESS, 2023-05-30)
The PSMC3IP-MND1 heterodimer promotes meiotic D loop formation before DNA strand exchange. In genome-scale CRISPR-Cas9 mutagenesis and interference screens in mitotic cells, depletion of PSMC3IP or MND1 causes sensitivity ...
Cancer-associated FBXW7 loss is synthetic lethal with pharmacological targeting of CDC7.
(WILEY, 2023-10-22)
The F-box and WD repeat domain containing 7 (FBXW7) tumour suppressor gene encodes a substrate-recognition subunit of Skp, cullin, F-box (SCF)-containing complexes. The tumour-suppressive role of FBXW7 is ascribed to its ...