Selective small molecule PARG inhibitor causes replication fork stalling and cancer cell death [PDF]
PARG catalyzes the removal of poly(ADP-ribose) (PAR) from target proteins and executes critical functions in the DNA damage response. Here the authors provide structural and biological insight with small molecule PARG inhibitors and show that PARG ...
Jerry H. Houl +20 more
doaj +4 more sources
Anticancer sensitivities and biological characteristics of HCT116 cells resistant to the selective poly(ADP‐ribose) glycohydrolase inhibitor [PDF]
Poly(ADP‐ribose) glycohydrolase (PARG) is a key enzyme involved in poly(ADP‐ribose) (PAR) degradation and is considered a potential anticancer target. We previously investigated resistance mechanisms to the PARG inhibitor PDD00017273 in human colorectal ...
Kaede Tsuda, Yoko Ogino, Akira Sato
doaj +4 more sources
Loss‐of‐function genetic screen unveils synergistic efficacy of PARG inhibition with combined 5‐fluorouracil and irinotecan treatment in colorectal cancer [PDF]
Background Colorectal cancer (CRC) remains a major global health concern, partly due to resistance to therapy and the lack of new effective treatments for advanced disease.
Cristina Queralt +14 more
doaj +4 more sources
PARG inhibitor sensitivity correlates with accumulation of single-stranded DNA gaps in preclinical models of ovarian cancer [PDF]
Significance As Poly (ADP-ribose) glycohydrolase (PARG) inhibitors are now in clinical trials, we evaluated the mechanism of replication defects resulting in tumor cell killing from PARG inhibition.
Alan D'Andrea, , Geoffrey Shapiro
exaly +3 more sources
Synergistic Cellular Toxicity from Inhibition of Poly(ADP-ribose) Glycohydrolase (PARG) and Ubiquitin-Specific Protease 1 (USP1) [PDF]
Ubiquitin-specific protease 1 (USP1) is an emerging target for poly(ADP-ribose) polymerase 1 (PARP1) inhibitor-resistant and BRCA1/BRCA2 mutant tumors.
Stefan M. Leonard +3 more
doaj +3 more sources
Intrinsic PARG inhibitor sensitivity is mimicked by TIMELESS haploinsufficiency and rescued by nucleoside supplementation. [PDF]
A subset of cancer cells are intrinsically sensitive to inhibitors targeting PARG, the poly(ADP-ribose) glycohydrolase that degrades PAR chains. Sensitivity is accompanied by persistent DNA replication stress, and can be induced by inhibition of TIMELESS,
Coulson-Gilmer C +16 more
europepmc +2 more sources
Replication-associated base excision repair/single-strand break repair regulates PARG inhibitor response via the PRMT1/PRMT5/ATR axis. [PDF]
Poly(ADP-ribose) polymerases 1 and 2 (PARP1/PARP2), and poly(ADP-ribose) glycohydrolase (PARG), modulate the level of poly(ADP-ribose) (PAR), a post-translational protein modification, in response to DNA damage or replication stress.
Ibrahim M +14 more
europepmc +2 more sources
Elevated TRIM25 Impairs Poly (ADP-ribose) Metabolism via PARG Degradation and Mediates Compression-Induced Intervertebral Disc Degeneration. [PDF]
TRIM25 acts as a multifunctional hub driving intervertebral disc degeneration under mechanical stress. Mechanical compression significantly upregulates TRIM25 expression, establishing it as a key E3 ubiquitin ligase platform. TRIM25 targets PARG and Ku80 via distinct molecular interfaces, triggering their ubiquitination and degradation.
Cheng Z +9 more
europepmc +2 more sources
PARG inhibition suppresses breast cancer progression and potentiates immunoresponse through MTDH degradation mediated by E3 ligase ITCH-dependent ubiquitination [PDF]
PARG plays an important role in cancer progression and immunoresponse, but its role in breast cancer is not yet fully elucidated. The advanced breast cancer is still a persistent challenge in clinical oncology.
Junnai Wang +9 more
doaj +2 more sources
Poly(ADP-ribose) glycohydrolase enforces p21 degradation via dePARylation to promote gastric cancer progression [PDF]
Dysregulation of cell cycle checkpoints is a cancer hallmark, with ubiquitination-controlled protein stability playing a pivotal role. Although p21, a key cyclin-dependent kinase inhibitor, is tightly regulated by ubiquitin-mediated degradation, the key ...
Yangchan Hu +23 more
doaj +2 more sources

