Results 121 to 130 of about 30,346 (252)

Lysosomes mediate the mitochondrial UPR via mTORC1-dependent ATF4 phosphorylation

, 2023
Lysosomes are central platforms for not only the degradation of macromolecules but also the integration of multiple signaling pathways. However, whether and how lysosomes mediate the mitochondrial stress response (MSR) remain largely unknown.
Gao, Arwen, Adrienne Mottis, Shong, Minho, Auwerx, Johan, Li, Terytty Yang, Minho Shong, Arwen W. Gao, Sun, Yu, Yu Sun, Li, Xiaoxu, Wang, Qi, Mottis, Adrienne, Xiaoxu Li, Qi Wang, Johan Auwerx, Terytty Yang Li   +15 more
core   +1 more source

Hyperhomocysteinemia and Vitamin B Deficiency as Potential Aggravating Factors in Huntington's Disease: A Prospective Monocentric Study

Movement Disorders, EarlyView.
Abstract Background Although not confirmed, some studies have suggested that elevated homocysteine levels are common in patients with Huntington's disease (HD). Its clinical relevance remains unclear. Objectives We aimed to assess vitamin B and homocysteine levels in HD patients and explore the relationships among hyperhomocysteinemia, vitamin B ...
Salomé Puisieux, Elise Pourié, Céline Bonnet, Lucie Hopes, Solène Frismand, Myriam Bronner, Virginie Roth, Marion Wandzel, Natacha Sloboda, Laetitia Lambert, Abderrahim Oussalah, Amélia Julien, Irina Rotaru, Rosa‐Maria Guéant‐Rodriguez, Jean Louis Guéant, Carine Bossenmeyer‐Pourié, Mathilde Renaud   +16 more
wiley   +1 more source

ATF4 Regulates CD4+ T Cell Immune Responses through Metabolic Reprogramming

, 2018
Summary: T cells are strongly regulated by oxidizing environments and amino acid restriction. How T cells reprogram metabolism to adapt to these extracellular stress situations is not well understood.
Danielle Obando, Yibei Zhu, Changping Wu, Wenwen Du, Rui Xia, Jingting Jiang, Qianting Yang, Xiaojuan Chen, Xi Yang, Huiling Cao, Jon Piganelli, Cuihua Yue, Yu Jiang, Peter Wipf, Xinchun Chen, Wensi Zhai, Guozhi Xiao, Binfeng Lu, Jane-Jane Chen   +18 more
core   +1 more source

ATF4 promotes glutaminolysis and glycolysis in colorectal cancer by transcriptionally inducing SLC1A5

Acta Biochimica et Biophysica Sinica
Glutaminolysis and glycolysis promote the malignant progression of colorectal cancer. The role of activating transcription factor 4 (ATF4) in solute carrier family 1 member 5 (SLC1A5)-mediated glutaminolysis and ...
Zhou Zengli, Ye Shufang, Chen Jingyu, Dai Fei, Chen Luyi, Ye Ran, Zhang Jianmei, Chen Gefei, Wang Yanjiao, Liu Yangyang   +9 more
doaj   +1 more source

Resolving Endoplasmic Reticulum‐Protein Misfolding Restores Corticosteroid Sensitivity in Experimental Models of Severe Asthma

Allergy, EarlyView.
This study investigates the role of ER stress in steroid resistance in severe asthma. Results from advanced 3D models of human bronchial epithelial cells, steroid‐resistant severe asthma mouse models, and human severe asthma sputum samples show that treatment with ICS in combination with the ER stress inhibitor 4‐PBA significantly enhances steroid ...
Prabuddha S. Pathinayake, Alexandra C. Brown, Nikhil T. Awatade, Philip M. Hansbro, Katherine J. Baines, Richard Y. Kim, Nathan W. Bartlett, Jay C. Horvat, Peter A. B. Wark   +8 more
wiley   +1 more source

Role of ATF4 in dietary sulfur amino acid restriction

, 2018
Dietary sulfur amino acid restriction (SAAR) increases food intake and energy expenditure and improves body composition. Dietary SAAR activates the integrated stress response (ISR), which orchestrates transcriptional changes through activating ...

core   +1 more source

MAPK Inhibitor‐Tolerant Persister Cells in Melanoma: Mechanisms and Therapeutic Vulnerabilities

Cancer Science, EarlyView.
Melanoma response to MAPK inhibition progresses from drug‐sensitive cells to drug‐tolerant persister states, which enable survival through adaptive signaling, metabolic rewiring, and phenotypic plasticity. These persister cells serve as an intermediate reservoir from which resistant tumors ultimately emerge. ABSTRACT Though major advancements have been
Bhoomi Shah, Mackenzie M. Mayhew, Jacob Sellers, Russell G. Witt   +3 more
wiley   +1 more source

YBX1 Promotes Malignant Progression of HNSCC via Stabilizing NSUN2‐m5C Modified ATF4 mRNA

Cancer Science, EarlyView.
The diagram depicts the core axis and the key finding: “Targeting YBX1/NSUN2 abrogates HNSCC progression”. Within left‐sided HNSCC cells, NSUN2 mediates m5C methylation on the CDS of ATF4 mRNA; YBX1 then specifically recognizes and binds this modified site, augmenting ATF4 mRNA stability, which ultimately promotes cancer cell proliferation, migration ...
Yanwei Li, Shuang Li, Yang Li, Zhanyu Pan   +3 more
wiley   +1 more source

CKAP4 Regulates ERS‐Induced Apoptosis in Osteoclasts Through FOXO3 in Periodontitis

Cell Proliferation, EarlyView.
CKAP4 promotes the transcription of PERK via FOXO3 in OCs, thereby facilitating ER stress‐induced apoptosis. In periodontitis, the reduction of CKAP4 in OCs leads to decreased OC apoptosis, which exacerbates alveolar bone resorption. ABSTRACT Periodontitis is a prevalent oral disease characterised by chronic inflammation and irreversible alveolar bone ...
Jiayu Cheng, Dihao Tao, Wenzhe Wang, Huiyu Wang, Hanzhe Wang, Yufan Liang, Jia Guo, Wenhao Liu, Yiming Wang, Jianhua Yang, Xiaoning He, Ce Shan, Bei Li   +12 more
wiley   +1 more source

Dissection of Mitochondrial Function via Chemical Perturbation and Single‐Cell Profiling

Cell Proliferation, EarlyView.
We establish a systematic framework to dissect mitochondrial function at the module level by combining targeted chemical perturbations with scRNA‐seq. This approach reveals shared and module‐specific programs linking mitochondrial activity to mito‐nuclear communication, stress response, and cell cycle, highlighting the tight coupling between ...
Hao Luo, Xiaona Yin, Hongxin He, Yaning Wang, Hongbo Zhang   +4 more
wiley   +1 more source