Results 101 to 110 of about 40,878 (239)

Autophagy Activators Normalize Aberrant Tau Proteostasis and Rescue Synapses in Human Familial Alzheimer's Disease iPSC‐Derived Cortical Organoids

Advanced Science, EarlyView.
A new cerebrocortical organoid model using isogenic hiPSCs with familial Alzheimer's mutations recapitulates key AD features, including amyloid‐beta and phospho‐Tau aggregation, neuronal hyperexcitability, and synapse loss. Single‐cell RNA‐seq reveals aberrant pathways in excitatory and inhibitory neurons.
Sergio R. Labra, Jadon Compher, Akhil Prabhavalkar, Mireya Almaraz, Claudia Cedeño Kwong, Christine Baal, Maria Talantova, Nima Dolatabadi, Julian Piña‐Sanz, Yubo Wang, Leonard Yoon, Swagata Ghatak, Zi Gao, Yuting Zhang, Dorit Trudler, Lynee Massey, Wei Lin, Anthony Balistreri, Michael Bula, Nicholas J. Schork, Tony S. Mondala, Steven R. Head, Jeffery W. Kelly, Stuart A. Lipton   +23 more
wiley   +1 more source

The role of the Amyloid Precursor Protein mutations and PERK-dependent signaling pathways in the pathogenesis of Alzheimer’s disease [PDF]

, 2016
Alzheimer’s disease (AD) is a highly complex, progressive, age-related neurodegenerative human disease entity. The genetic basis of AD is strictly connected with occurrence of mutations in Amyloid Precursor (APP) gene on chromosome 21.
Diehl, J. Alan, Lewko, Dawid, Majsterek, Ireneusz, Nowak, Alicja, Pytel, Dariusz, Rozpędek, Wioletta   +5 more
core   +2 more sources

Vimentin Inhibits ATF4-mediated Osteocalcin Transcription and Osteoblast Differentiation [PDF]

Journal of Biological Chemistry, 2009
Activating transcription factor 4 (ATF4) is an osteoblast-enriched transcription factor that regulates osteocalcin transcription and osteoblast terminal differentiation. To identify functional partners of ATF4, we applied ROS17/2.8 osteoblast nuclear extracts and purified recombinant His-ATF4 onto a Ni(+) affinity matrix chromatography column. Vimentin
Na, Lian, Weiguang, Wang, Lingzhen, Li, Florent, Elefteriou, Xiangli, Yang   +4 more
openaire   +2 more sources

Decoding the Integrated Stress Response of Pancreatic Cancer: Identifying a Serine‐dependent Tumor Subset Under Metabolic Relationships With CAFs.

Advanced Science, EarlyView.
Researchers identified a pancreatic cancer subset with low global protein synthesis but heightened translation of stress‐response genes like ATF4, rendering cells resistant to chemotherapy and apoptosis. These tumors depend on serine and cysteine from surrounding cancer‐associated fibroblasts (CAFs), which shift to produce serine by curbing collagen ...
Sauyeun Shin, Mehdi Liauzun, Jacobo Solorzano, Morgane Le Bras, Christine Jean, Benjamin Fourneaux, Margaux Dore, Lea Fevrier, Ismahane Belhabib, Alexia Brunel, Cindy Neuzillet, Marion Larroque, Carine Joffre, Stephane Rocchi, Nicolas Fraunhoffer, Aurelie Perraud, Muriel Mathonnet, Vera Pancaldi, Laetitia Linares, Juan Iovanna, Nelson Dusetti, Ola Larsson, Remy Nicolle, Stephane Pyronnet, Corinne Bousquet, Yvan Martineau   +25 more
wiley   +1 more source

Activating Transcription Factor 4 (ATF4) Modulates Post-synaptic Development and Dendritic Spine Morphology

Frontiers in Cellular Neuroscience, 2014
The ubiquitously expressed activating transcription factor 4 (ATF4) has been variably reported to either promote or inhibit neuronal plasticity and memory.
Jin eLiu, Silvia ePasini, Michael L Shelanski, Lloyd A Greene   +3 more
doaj   +1 more source

The small molecule ISRIB reverses the effects of eIF2α phosphorylation on translation and stress granule assembly. [PDF]

, 2015
Previously, we identified ISRIB as a potent inhibitor of the integrated stress response (ISR) and showed that ISRIB makes cells resistant to the effects of eIF2α phosphorylation and enhances long-term memory in rodents (Sidrauski et al., 2013).
Ingolia, Nicholas T, McGeachy, Anna M, Sidrauski, Carmela, Walter, Peter   +3 more
core   +2 more sources

3D Bioprinted Fat‐Myocardium Model Unravels the Role of Adipocyte Hypertrophy in Atrial Dysfunction

Advanced Science, EarlyView.
A human‐derived 3D bioprinted fat–myocardium model is developed to investigate how adipocyte hypertrophy drives atrial dysfunction in obesity. Palmitate‐induced adipocyte hypertrophy promotes adipose dysfunction that impairs atrial cardiomyocyte metabolism and electrophysiology through both paracrine and direct interactions. This platform recapitulates
Lara Ece Celebi, Pinar Zorlutuna
wiley   +1 more source

Chemical chaperone treatment reduces intracellular accumulation of mutant collagen IV and ameliorates the cellular phenotype of a COL4A2 mutation that causes haemorrhagic stroke [PDF]

, 2013
Haemorrhagic stroke accounts for approximately 20% of stroke cases and porencephaly is a clinical consequence of perinatal cerebral haemorrhaging. Here we report the identification of a novel dominant G702D mutation in the collagen domain of COL4A2 ...
Aislynn Taggart, Bateman, Brazel, Catheline Vilain, de Clerck, Engin, Favor, Geesin, Gould, Gould, Gould, Hostikka, Ishida, Jeanne, Kalluri, Karl E. Kadler, Khoshnoodi, Lydia S. Murray, Marc Abramowicz, Muthukumaran, Nicole Van Regemorter, Ozcan, Plaisier, Plaisier, Poschl, Ron, Taylor, Tom Van Agtmael, Vahedi, Van Agtmael, Van Agtmael, Van Agtmael, Verbeek, Vilain, Woo, Yinhui Lu   +35 more
core   +1 more source

GPCRs in CAR‐T Cell Immunotherapy: Expanding the Target Landscape and Enhancing Therapeutic Efficacy

Advanced Science, EarlyView.
Chimeric antigen receptor T cell therapy faces dual challenges of target scarcity and an immunosuppressive microenvironment in solid tumors. This review highlights how G protein‐coupled receptors can serve as both novel targets to expand the therapeutic scope and functional modules to enhance CAR‐T cell efficacy.
Zhuoqun Liu, Yuchen Xiao, Yamin Zhao, Lihe Dai, David J.H. Shih, Shikang Liang, Honglei Tian, Liu Liu, Feng Tian, Bing Liu, Lei Chang, Chao Zhang   +11 more
wiley   +1 more source

Cancer microenvironment and endoplasmic reticulum stress response [PDF]

, 2015
Different stressful conditions such as hypoxia, nutrient deprivation, pH changes, or reduced vascularization, potentially able to act as growth-limiting factors for tumor cells, activate the unfolded protein response (UPR).
Conti, S, Facchiano, A, Filippini, Antonio, Giampietri, Claudia, Petrungaro, Simonetta, Ziparo, Elio   +5 more
core   +4 more sources