Results 111 to 120 of about 106,021 (225)

Increased DNA damage in full-grown oocytes is correlated with diminished autophagy activation

Nature Communications
Unlike mild DNA damage exposure, DNA damage repair (DDR) is reported to be ineffective in full-grown mammalian oocytes exposed to moderate or severe DNA damage. The underlying mechanisms of this weakened DDR are unknown.
Fei Sun, Nourhan Nashat Ali, Daniela Londoño-Vásquez, Constantine A. Simintiras, Huanyu Qiao, M. Sofia Ortega, Yuksel Agca, Masashi Takahashi, Rocío M. Rivera, Andrew M. Kelleher, Peter Sutovsky, Amanda L. Patterson, Ahmed Z. Balboula   +12 more
doaj   +1 more source

Baicalein Sensitizes Radioresistant BT549 and MCF7‐R Breast Cancer Cells by Modulating Rac1 Signaling

Phytotherapy Research, EarlyView.
ABSTRACT Radioresistance remains a key barrier in breast cancer (BC) treatment. Baicalein, a flavonoid from Scutellaria baicalensis, has shown potential to enhance radiosensitivity. This study investigates its efficacy and mechanism in radioresistant BC models. Radioresistant BC cell models were established via fractionated irradiation and validated by
Zitong Zhao, Zhangyun Li, Quanzhou Peng, Shuqun Zhang   +3 more
wiley   +1 more source

DNA damage accumulates and responses are engaged in human ALS brain and spinal motor neurons and DNA repair is activatable in iPSC-derived motor neurons with SOD1 mutations

Acta Neuropathologica Communications, 2020
DNA damage is implicated in the pathogenesis of amyotrophic lateral sclerosis (ALS). However, relationships between DNA damage accumulation, DNA damage response (DDR), and upper and lower motor neuron vulnerability in human ALS are unclear; furthermore ...
Byung Woo Kim, Ye Eun Jeong, Margaret Wong, Lee J. Martin   +3 more
doaj   +1 more source

Targeting Cell Cycle Vulnerabilities in Cancers: Emerging Strategies for Therapeutic Development

Cancer Science, EarlyView.
Dysregulated cell cycle control often involves alternative compensatory pathways in cancers to maintain its robustness but provide unique targetable vulnerabilities. We overview recent insights on cancer‐specific vulnerabilities across the cell cycle and discuss how these can be used to develop new therapeutic strategies.
Nana Kamakura, Minji Jo, Motoko Takahashi, Toru Hirota   +3 more
wiley   +1 more source

Epitranscriptome in action: RNA modifications in the DNA damage response

Molecules and Cells
Complex pathways involving the DNA damage response (DDR) contend with cell intrinsic and extrinsic sources of DNA damage. DDR mis-regulation results in genome instability that can contribute to aging and diseases including cancer and neurodegeneration ...
Blerta Xhemalçe, Kyle M. Miller, N. Gromak   +2 more
semanticscholar   +1 more source

NTAQ1 Promotes Hepatocellular Carcinoma Growth by Facilitating the Protein Degradation of the Tumor Suppressor PRDM2

Cancer Science, EarlyView.
Copy number variation analysis in The Cancer Genome Atlas identified NTAQ1 as a potential driver of HCC progression. NTAQ1 accelerates tumor growth by promoting the degradation of the tumor suppressor protein PRDM2, thereby impairing DNA repair and suppressing apoptosis. These findings indicate that NTAQ1 could be a valuable target for the treatment of
Tomohiko Ikehara, Hajime Otsu, Taro Tobo, Kiyotaka Hosoda, Tadashi Abe, Masahiro Hashimoto, Yusuke Nakano, Katsushi Dairaku, Yuya Ono, Yuki Miyata, Chihiro Matsumoto, Takanari Tatsumi, Satoshi Higuchi, Takashi Ofuchi, Akinori Tsujimoto, Yuki Ando, Qingjiang Hu, Yusuke Yonemura, Akira Shimizu, Takaaki Masuda, Yuji Soejima, Koshi Mimori   +21 more
wiley   +1 more source

HIV-1 Vpr-induced DNA damage activates NF-κB through ATM-NEMO independent of cell cycle arrest

mBio
Lentiviruses encode a number of multi-functional accessory proteins, however, the primary role of the accessory protein Vpr remains unclear. As Vpr engages the host DNA damage response (DDR) at multiple steps, modulation of the DDR is considered central ...
Carina Sandoval, Karly Nisson, Oliver I. Fregoso   +2 more
doaj   +1 more source

Oxidative Stress Drives Cell Cycle Stalling, Apoptosis and Metabolic Suppression in Cystatin B Deficient EPM1 Patient iPSCs

Cell Proliferation, EarlyView.
CSTB deficient EPM1 iPS cells manifest increased lysosomal activity and oxidative stress, which lead to DNA damage, cell cycle defects and increased apoptosis. As a protective response, metabolism is suppressed. Image created by BioRender https://BioRender.com/t44oc6h.
Shekhar Singh, Lidiia Plotnikova, Teemu Tiukuvaara, Reetta Kälviäinen, Riikka H. Hämäläinen   +4 more
wiley   +1 more source

SUMO and the DNA damage response

Biochemical Society Transactions
The preservation of genome integrity requires specialised DNA damage repair (DDR) signalling pathways to respond to each type of DNA damage. A key feature of DDR is the integration of numerous post-translational modification signals with DNA repair ...
Jai S Bhachoo, Alexander J. Garvin
semanticscholar   +1 more source

Bystander communication and cell cycle decisions after DNA damage

Frontiers in Genetics, 2015
The DNA Damage Response (DDR) has two main goals, to repair the damaged DNA and to communicate the presence of damaged DNA. This communication allows the adaptation of cellular behavior to minimize the risk associated with DNA damage. In particular, cell
Himjyot eJaiswal, Arne eLindqvist
doaj   +1 more source