Results 41 to 50 of about 35,642 (231)

Translational control by eIF2α phosphorylation regulates vulnerability to the synaptic and behavioral effects of cocaine

eLife, 2016
Adolescents are especially prone to drug addiction, but the underlying biological basis of their increased vulnerability remains unknown. We reveal that translational control by phosphorylation of the translation initiation factor eIF2α (p-eIF2α ...
Wei Huang, Andon N Placzek, Gonzalo Viana Di Prisco, Sanjeev Khatiwada, Carmela Sidrauski, Krešimir Krnjević, Peter Walter, John A Dani, Mauro Costa-Mattioli   +8 more
doaj   +1 more source

Neuroprotection targeting protein misfolding on chronic cerebral hypoperfusion in the context of metabolic syndrome [PDF]

, 2018
Metabolic syndrome (MetS) is a cluster of risk factors that lead to microvascular dysfunction and chronic cerebral hypoperfusion (CCH). Long-standing reduction in oxygen and energy supply leads to brain hypoxia and protein misfolding, thereby linking CCH
Capani, Francisco, Herrera, María Inés, Kusnier, Carlos Federico, Luaces, Juan Pablo, Otero-Losada, Matilde Estela, Toro Urrego, Nicolás, Udovin, Lucas   +6 more
core   +1 more source

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

Molecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone, James Dunford, Eleanor Calcutt, Vicki Gamble, Filiz Senbabaoglu Aksu, Lorena Ligammari, Georgina Wherry, Giorgia Gaeta, John C. Christianson, Adrienne M. Flanagan, Udo Oppermann, Adam P. Cribbs   +11 more
wiley   +1 more source

Endoplasmic reticulum stress and autophagy in cerebral ischemia/reperfusion injury: PERK as a potential target for intervention

Neural Regeneration Research
Several studies have shown that activation of unfolded protein response and endoplasmic reticulum (ER) stress plays a crucial role in severe cerebral ischemia/reperfusion injury. Autophagy occurs within hours after cerebral ischemia, but the relationship
Ju Zheng, Yixin Li, Ting Zhang, Yanlin Fu, Peiyan Long, Xiao Gao, Zhengwei Wang, Zhizhong Guan, Xiaolan Qi, Wei Hong, Yan Xiao   +10 more
doaj   +1 more source

eIF2α-mediated translational control regulates the persistence of cocaine-induced LTP in midbrain dopamine neurons

eLife, 2016
Recreational drug use leads to compulsive substance abuse in some individuals. Studies on animal models of drug addiction indicate that persistent long-term potentiation (LTP) of excitatory synaptic transmission onto ventral tegmental area (VTA) dopamine
Andon N Placzek, Gonzalo Viana Di Prisco, Sanjeev Khatiwada, Martina Sgritta, Wei Huang, Krešimir Krnjević, Randal J Kaufman, John A Dani, Peter Walter, Mauro Costa-Mattioli   +9 more
doaj   +1 more source

Plecstatin inhibits hepatocellular carcinoma tumorigenesis and invasion through cytolinker plectin

Molecular Oncology, EarlyView.
The ruthenium‐based metallodrug plecstatin exerts its anticancer effect in hepatocellular carcinoma (HCC) primarily through selective targeting of plectin. By disrupting plectin‐mediated cytoskeletal organization, plecstatin inhibits anchorage‐dependent growth, cell polarization, and tumor cell dissemination.
Zuzana Outla, Jan Kosla, Magdalena Prechova, Lukas Frick, Patricia Bortel, Yasmin Borutzki, Andrea Bileck, Christopher Gerner, Samuel M. Meier‐Menches, Selma Osmanagic‐Myers, Martin Gregor   +10 more
wiley   +1 more source

Research Progress of Endoplasmic Reticulum Stress PERK-eIF2α-AFT4-CHOP Signaling Pathway in Hematological Malignancies

Zhongliu Fangzhi Yanjiu
The biosynthesis and maturation of proteins are primarily regulated by the endoplasmic reticulum in its physiological state. Thus, the disruption of physiological homeostasis initiates the buildup of unfolded and misfolded proteins in the endoplasmic ...
HE Mengke, XU Zizhen, LI Junmin
doaj   +1 more source

Cross Talk between eIF2α and eEF2 Phosphorylation Pathways Optimizes Translational Arrest in Response to Oxidative Stress

iScience, 2019
Summary: The cellular stress response triggers a cascade of events leading to transcriptional reprogramming and a transient inhibition of global protein synthesis, which is thought to be mediated by phosphorylation of eukaryotic initiation factor-2α ...
Marisa Sanchez, Yingying Lin, Chih-Cheng Yang, Philip McQuary, Alexandre Rosa Campos, Pedro Aza Blanc, Dieter A. Wolf   +6 more
doaj   +1 more source

PNAS plus: plasmodium falciparum responds to amino acid starvation by entering into a hibernatory state [PDF]

, 2012
The human malaria parasite Plasmodium falciparum is auxotrophic for most amino acids. Its amino acid needs are met largely through the degradation of host erythrocyte hemoglobin; however the parasite must acquire isoleucine exogenously, because this ...
Baertl, Bozdech, Brennand, C. Doerig, C. Fennell, Callebaut, Codd, D. E. Goldberg, Daily, Dever, Divo, Dyer, E. S. Istvan, Fennell, Fidock, Francis, Functional Genomics Workshop Group, Harris, Hinnebusch, Hinnebusch, Kafsack, Kilberg, Kim, Kourtis, L. Altenhofen, Lambros, Llinas, Lu, Lu, M. Llinas, Olszewski, Payne, Pfaller, Roth, Russo, S. A. Cobbold, S. E. Babbitt, Sharma, Sherman, Sims, Soeters, Towbin, Trager, van Werven, Wek, Zaborske, Zolg   +46 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source