Results 41 to 50 of about 31,889 (263)

Nintedanib enhances tumor cell radiosensitivity by promoting ferroptosis and modulating the ATF4/SLC7A11/GSH axis

open access: yesCancer Biology & Medicine
Objective: Tumor cell radio-resistance and radiation-induced fibrosis of normal tissues hinder the efficacy of radiotherapy. Nintedanib, a promising therapeutic agent for radiation-induced pulmonary fibrosis and solid tumors, has yet to be investigated ...
Chunya Li   +8 more
doaj   +1 more source

Specific Downregulation of Hippocampal ATF4 Reveals a Necessary Role in Synaptic Plasticity and Memory

open access: yesCell Reports, 2015
Prior studies suggested that the transcription factor ATF4 negatively regulates synaptic plastic and memory. By contrast, we provide evidence from direct in vitro and in vivo knockdown of ATF4 in rodent hippocampal neurons and from ATF4-null mice that ...
Silvia Pasini   +4 more
doaj   +1 more source

Activating transcription factor 4 confers a multidrug resistance phenotype to gastric cancer cells through transactivation of SIRT1 expression. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND: Multidrug resistance (MDR) in gastric cancer remains a major challenge to clinical treatment. Activating transcription factor 4 (ATF4) is a stress response gene involved in homeostasis and cellular protection.
Hongwu Zhu   +13 more
doaj   +1 more source

The transcription regulator ATF4 is a mediator of skeletal muscle aging

open access: yesGeroScience, 2023
AbstractAging slowly erodes skeletal muscle strength and mass, eventually leading to profound functional deficits and muscle atrophy. The molecular mechanisms of skeletal muscle aging are not well understood. To better understand mechanisms of muscle aging, we investigated the potential role of ATF4, a transcription regulatory protein that can rapidly ...
Miller, Matthew J.   +13 more
openaire   +2 more sources

EXtENDINg β cell survival by UPRegulating ATF4 translation [PDF]

open access: yesCell Metabolism, 2006
In this issue of Cell Metabolism, Daniel Drucker and colleagues (Yusta et al., 2006) explore how the incretin mimetic exendin-4 improves beta cell function and survival during ER stress. Their findings suggest that protein kinase A signaling elicited by GLP-1 receptor activation differentially modulates one arm of the unfolded protein response (UPR ...
Wek, Ronald C., Anthony, Tracy G.
openaire   +2 more sources

Alendronate Alleviated Femoral Head Necrosis and Upregulated BMP2/EIF2AK3/EIF2A/ATF4 Pathway in Liquid Nitrogen Treated Rats

open access: yesDrug Design, Development and Therapy, 2021
Ke Rong,1 Xiaoliu Li,2 Weimin Jiang,1 Xuhua Wu,1 Qingquan Xia,2 Jie Chen,1 Xiaofan Yin2 1Department of Orthopedics, The First Affiliated Hospital of Soochow University, Soochow, 215006, People’s Republic of China; 2Department of Orthopedics ...
Rong K   +6 more
doaj  

ATF4‐amino acid circuits: a recipe for resistance in melanoma [PDF]

open access: yesThe EMBO Journal, 2018
Lactate dehydrogenase A (LDHA) has appropriately received attention as a therapeutic target for the treatment of a broad spectrum of tumor types, yet little is known regarding intrinsic resistance to LDHA inhibitors. Pathria et al (2018) now establish that ATF4‐dependent control of enzymes that direct amino acid metabolism confers resistance to LDHA ...
Mario R, Fernandez, John L, Cleveland
openaire   +2 more sources

Genome-wide census of ATF4 binding sites and functional profiling of trait-associated genetic variants overlapping ATF4 binding motifs

open access: yesPLOS Genetics, 2023
Activating Transcription Factor 4 (ATF4) is an important regulator of gene expression in stress responses and developmental processes in many cell types. Here, we catalogued ATF4 binding sites in the human genome and identified overlaps with trait-associated genetic variants.
Tiit Örd   +3 more
openaire   +3 more sources

Limited ATF4 Expression in Degenerating Retinas with Ongoing ER Stress Promotes Photoreceptor Survival in a Mouse Model of Autosomal Dominant Retinitis Pigmentosa. [PDF]

open access: yesPLoS ONE, 2016
T17M rhodopsin expression in rod photoreceptors leads to severe retinal degeneration and is associated with the activation of ER stress related Unfolded Protein Response (UPR) signaling.
Yogesh Bhootada   +6 more
doaj   +1 more source

Tunicamycin aggravates endoplasmic reticulum stress and airway inflammation via PERK-ATF4-CHOP signaling in a murine model of neutrophilic asthma

open access: yes, 2016
Introduction: Endoplasmic reticulum (ER) stress has been considered to be an important regulator of airway inflammation in the pathogenesis of bronchial asthma, but the mechanism of ER stress involved in neutrophilic asthma remain not fully understood ...
Huixia Li (739049)   +6 more
core   +1 more source

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