Results 81 to 90 of about 55,108 (306)

A Nonhomologous End-joining Pathway Is Required for Protein Phosphatase 2A Promotion of DNA Double-Strand Break Repair

Neoplasia: An International Journal for Oncology Research, 2009
Protein phosphatase 2A (PP2A) functions as a potent tumor suppressor, but its mechanism(s) remains enigmatic. Specific disruption of PP2A by either expression of SV40 small tumor antigen or depletion of endogenous PP2A/C by RNA interference inhibits Ku ...
Qinhong Wang, Fengqin Gao, Ton Wang, Tammy Flagg, Xingming Deng   +4 more
doaj   +1 more source

Patient therapy outcome modeling in cancer organoids is improved by cancer‐associated fibroblasts and organoid assembly convolution

Molecular Oncology, EarlyView.
Patient‐derived organoids (PDOs) from pancreatic, colorectal, and gastric cancers were used to evaluate standard and experimental therapies. Incorporating cancer‐associated fibroblasts (CAFs) into organoid cultures improved patient therapy outcome prediction.
Marcin Grochowski, Liudmyla Dolinchuk, Michał Jerzak, Albert Gandurski, Tomasz Grochowski, Weronika Wojtyś, Maciej Zadrożny, Wojciech Kaźmierczak, Małgorzata Lenarcik, Marta Matejak‐Górska, Radosław Samsel, Tomasz Olesiński, Dawid Walerych   +12 more
wiley   +1 more source

Defective Artemis causes mild telomere dysfunction

, 2010
This article has been made available through the Brunel Open Access Publishing Fund.Background: Repair of DNA double strand breaks by non-homologous end joining (NHEJ) requires several proteins including Ku, DNA-PKcs, Artemis, XRCC4, Ligase IV and XLF ...
Slijepcevic, P, Yasaei, H, Predrag Slijepcevic, Hemad Yasaei   +3 more
core   +1 more source

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source

AMPK Interactome Reveals New Function in Non-homologous End Joining DNA Repair

Molecular & Cellular Proteomics, 2020
Adenosine monophosphate-activated protein kinase (AMPK) is an obligate heterotrimer that consists of a catalytic subunit (α) and two regulatory subunits (β and γ). AMPK is a key enzyme in the regulation of cellular energy homeostasis. It has been well studied and is known to function in many cellular pathways.
Zhen Chen, Chao Wang, Antrix Jain, Mrinal Srivastava, Mengfan Tang, Huimin Zhang, Xu Feng, Litong Nie, Dan Su, Yun Xiong, Sung Yun Jung, Jun Qin, Junjie Chen   +12 more
openaire   +2 more sources

PARP inhibitors induce a senescence phenotype in non‐small cell lung carcinoma cell lines

FEBS Open Bio, EarlyView.
Talazoparib is the most potent inducer of senescence among different PARP1 inhibitors in human NSCLC cells. In the absence of PARP, no senescence phenotype was observed, demonstrating that PARP1 is necessary for the induction of senescence by this inhibitor.
Camille Huart, Manon Van den Abbeel, Christoph Schifflers, Karim Bouhjar, Andrea Scarmelotto, Alexis Khelfi, Anne‐Catherine Wera, Carine Michiels   +7 more
wiley   +1 more source

RECQL4 requires PARP1 for recruitment to DNA damage, and PARG dePARylation facilitates its associated role in end joining

Experimental and Molecular Medicine
RecQ helicases, highly conserved proteins with pivotal roles in DNA replication, DNA repair and homologous recombination, are crucial for maintaining genomic integrity.
Mansoor Hussain, Prabhat Khadka, Komal Pekhale, Tomasz Kulikowicz, Samuel Gray, Alfred May, Deborah L. Croteau, Vilhelm A. Bohr   +7 more
doaj   +1 more source

Dangerous Liaisons: Fanconi Anemia and Toxic Nonhomologous End Joining in DNA Crosslink Repair [PDF]

Molecular Cell, 2010
The proper choice of repair pathway is critical to tolerating various types of DNA damage. In a recent issue of Molecular Cell, Adamo et al. (2010), along with a second report (Pace et al., 2010), describe how the Fanconi anemia (FA) pathway is involved in preventing aberrant DNA repair.
Bunting, Samuel F., Nussenzweig, André
openaire   +2 more sources

YIPFα1A expression is regulated by multilayered molecular mechanisms

FEBS Open Bio, EarlyView.
YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji, Yurika Nakanishi, Nobuhiro Nakamura   +2 more
wiley   +1 more source

hSSB1 rapidly binds at the sites of DNA double-strand breaks and is required for the efficient recruitment of the MRN complex

, 2010
hSSB1 is a newly discovered single-stranded DNA (ssDNA)-binding protein that is essential for efficient DNA double-strand break signalling through ATM. However, the mechanism by which hSSB1 functions to allow efficient signalling is unknown.
Cubeddu, Liza (R16726), Prise, Kevin M., Schettino, Giuseppe, So, Sairei, Bolderson, Emma, Kevin M. Prise, Derek J. Richard, Cubeddu, Liza, Kerry Richard, White, Malcolm F., Emma Bolderson, David J. Chen, Mihaela Ghita, Kienan Savage, Giuseppe Schettino, Savage, Kienan, Richard, Kerry, Khanna, Kum Kum, Ghita, Mihaela, Malcolm F. White, Sairei So, Richard, Derek J., Kum Kum Khanna, Chen, David J., Liza Cubeddu   +24 more
core   +1 more source