Results 111 to 120 of about 77,898 (323)

Enhancing the Effectiveness of Chemotherapy in Osteosarcoma by Targeting Tumour‐Associated Macrophages (TAMs) through STING Activation

Advanced Therapeutics, EarlyView.
Osteosarcoma isa highly aggressive bone cancer with an immunosuppressive tumor microenvironment that limits immunotherapy. This study explores STING pathway activation to reprogram tumor‐associated macrophages into a tumoricidal M1‐like phenotype and enhance doxorubicin efficacy. Results show that doxorubicin alone failed to activate the STING pathway,
Jordan C. O'Donoghue, Amanda Guitián‐Caamaño, Maeve Boyce, Fiona E. Freeman   +3 more
wiley   +1 more source

Structure of the error-prone DNA ligase of African swine fever virus identifies critical active site residues

Nature Communications, 2019
The DNA ligase of African swine fever virus is one of the most error-prone ligases identified to date, but underlying molecular details are lacking. Here, Chen et al.
Yiqing Chen, Hehua Liu, Chun Yang, Yanqing Gao, Xiang Yu, Xi Chen, Ruixue Cui, Lina Zheng, Suhua Li, Xuhang Li, Jinbiao Ma, Zhen Huang, Jixi Li, Jianhua Gan   +13 more
doaj   +1 more source

The proteasome lid triggers COP9 signalosome activity during the transition of Saccharomyces cerevisiae cells into quiescence. [PDF]

, 2019
The class of Cullin–RING E3 ligases (CRLs) selectively ubiquitinate a large portion of proteins targeted for proteolysis by the 26S proteasome. Before degradation, ubiquitin molecules are removed from their conjugated proteins by deubiquitinating enzymes,
Bramasole, Lylan, Cirigliano, Angela, Glickman, Michael H., Gurevich, Sylvia, Harshuk, Dana, Pick, Elah, Rinaldi, Teresa, Sinha, Abhishek, Yu, Zanlin   +8 more
core  

The centrosomal deubiquitylase USP21 regulates Gli1 transcriptional activity and stability [PDF]

, 2016
USP21 is a centrosome-associated deubiquitylase (DUB) that has been implicated in the formation of primary cilia - crucial organelles for the regulation of the Hedgehog (Hh) signaling pathway in vertebrates. Here, we identify KCTD6 - a cullin-3 E3-ligase
Bertsoulaki, Erithelgi, Clague, Michael J., Cucchi, Danilo, DE SMAELE, Enrico, Heride, Claire, Rigden, Daniel J., Urbé, Sylvie   +6 more
core   +1 more source

NAD+‐Boosters Improve Mitochondria Quality Control In Parkinson's Disease Models Via Mitochondrial UPR

Advanced Science, EarlyView.
Treatment of MPTP‐incubated cells with NAD+‐boosters increase the UPRmt/mitophagy‐related mitochondria quality control (MQC). Disturbed plasma UPRmt‐mitophagy‐mediated MQC profiles in PD patient samples. NMN inhibits motor deficit and forestalls neuropathology phenotypes of PD mice, which is required the atf4‐medicated UPRmt pathway.
Shuoting Zhou, Xi Xiong, Jialong Hou, Qi Duan, Yi Zheng, Tao Jiang, Jiani Huang, Haijun He, Jiaxue Xu, Keke Chen, Wenwen Wang, Jinlai Cai, Jingjing Qian, Huijun Chen, Weihong Song, XinShi Wang, Chenglong Xie   +16 more
wiley   +1 more source

Subcellular organization of UBE3A in human cerebral cortex. [PDF]

, 2018
BackgroundLoss of UBE3A causes Angelman syndrome, whereas excess UBE3A activity appears to increase the risk for autism. Despite this powerful association with neurodevelopmental disorders, there is still much to be learned about UBE3A, including its ...
Burette, Alain C, Chang, Edward F, Judson, Matthew C, Li, Alissa N, Philpot, Benjamin D, Seeley, William W, Weinberg, Richard J   +6 more
core   +3 more sources

Acod1 Promotes PAD4 Ubiquitination via UBR5 Alkylation to Modulate NETosis and Exert Protective Effects in Sepsis

Advanced Science, EarlyView.
In this study, Acod1 knockout in CLP mice significantly increases peripheral blood NET levels, exacerbating inflammation, organ damage, and reducing survival. Further research shows that UBR5 interacts with PAD4, a key NET formation protein. Acod1/itaconate (ITA) enhances the enzymatic activity of UBR5 by alkylating the Cys2768 site, promoting the K48 ...
Huifan Liu, Guoqing Jing, Shujuan Wu, Min Yuan, Yingyue Dong, Xue Chen, Huimin Zhou, Hailong Gong, Jing Zuo, Xiaojing Wu, Xuemin Song   +10 more
wiley   +1 more source

ATP-dependent DNA ligases.

Genome biology, 2002
By catalyzing the joining of breaks in the phosphodiester backbone of duplex DNA, DNA ligases play a vital role in the diverse processes of DNA replication, recombination and repair. Three related classes of ATP-dependent DNA ligase are readily apparent in eukaryotic cells.
Stuart A. MacNeill, Ina V. Martin
openaire   +3 more sources

Ribonucleolytic resection is required for repair of strand displaced nonhomologous end-joining intermediates [PDF]

, 2013
Nonhomologous end-joining (NHEJ) pathways repair DNA double-strand breaks (DSBs) in eukaryotes and many prokaryotes, although it is not reported to operate in the third domain of life, archaea. Here, we describe a complete NHEJ complex, consisting of DNA
Bartlett, Edward, Brissett, Nigel C, Doherty, Aidan J   +2 more
core   +1 more source

USP10 Inhibits Ferroptosis via Deubiquinating POLR2A in Head and Neck Squamous Cell Carcinoma

Advanced Science, EarlyView.
This study identifies USP10 as a novel deubiquitinase that antagonizes ferroptosis in head and neck squamous cell carcinoma (HNSCC). Mechanistically, USP10 directly stabilizes POLR2A protein through post‐translational deubiquitination, enabling POLR2A‐mediated transcriptional activation of SLC7A11, a key ferroptosis inhibitor.
Diekuo Zhang, Xueying Wang, Shanhong Lu, Yan Gao, Gangcai Zhu, Guo Li, Zongnan Yu, Junwei Hou, Helei Yan, Wenhui Yuan, Xin Zhang, Mien‐Chie Hung, Zhifeng Liu, Yong Liu   +13 more
wiley   +1 more source