Results 141 to 150 of about 40,878 (239)

Chondrocytic Atf4 regulates osteoblast differentiation and function via Ihh

Development, 2012
Atf4 is a leucine zipper-containing transcription factor that activates osteocalcin (Ocn) in osteoblasts and indian hedgehog (Ihh) in chondrocytes. The relative contribution of Atf4 in chondrocytes and osteoblasts to the regulation of skeletal development and bone formation is poorly understood. Investigations of the Atf4–/–;Col2a1-Atf4 mouse model, in
Weiguang, Wang, Na, Lian, Yun, Ma, Lingzhen, Li, Richard C, Gallant, Florent, Elefteriou, Xiangli, Yang   +6 more
openaire   +3 more sources

Emerging Role of Ferroptosis in Diabetes and Associated Complications: When Metabolic Dysregulation Meets Cell Death

Cell Proliferation, EarlyView.
This study identifies ferroptosis as a key driver of diabetes and its complications via iron metabolism and lipid peroxidation, elucidates organelle interactions underlying cell vulnerability, and provides insights for targeted therapies against metabolic disorders.
Zheng Wang, Ying Zhang, Yue Xu, Mengyuan Yang, Yuan Wei, Yuan Li, Tongyue Yang, Xu Wang, Chaona Yang, Qi Feng, Guolan Xing   +10 more
wiley   +1 more source

Roles of ER Membrane Protein Complex in Protein Biogenesis and Quality Control in the Lung and Beyond

Cell Proliferation, EarlyView.
The endoplasmic reticulum membrane protein complex (EMC) is an evolutionarily conserved, multi‐subunit transmembrane protein complex crucial to membrane protein biogenesis and cellular protein quality control. This review systematically examines the structure, functions and disease‐associated regulatory mechanisms of EMC across multiple organ systems ...
Yan Qiao, Yuqing Sun, Yutao Huang, Qinghang Meng, Xinhua Lin, Wei Wei, Xiaofang Tang   +6 more
wiley   +1 more source

Activating transcription factor 4 plays a major role in shaping the transcriptional response to isoginkgetin in HCT116 cells

Scientific Reports
Activating transcription factor 4 (ATF4) plays a central role in the integrated stress response (ISR) and one overlapping branch of the unfolded protein response (UPR).
Erin van Zyl, John D. H. Stead, Claire Peneycad, Carole L. Yauk, Bruce C. McKay   +4 more
doaj   +1 more source

ER proteostasis meets mitochondrial function: contact sites as hubs of communication and therapeutic targets

The FEBS Journal, EarlyView.
Proteostasis ensures proper protein folding, modification, and degradation, while its impairment triggers ER stress. Chronic ER stress and maladaptive UPR via the CHOP–ERO1 axis remodel ERMCs, altering calcium signaling and mitochondrial metabolism.
Giorgia Maria Renna, Alessandro Cherubini, Ersilia Varone, Serena Germani, Alice Marrazza, Ester Zito   +5 more
wiley   +1 more source

Proteostasis of organelles in aging and disease

The FEBS Journal, EarlyView.
Cells rely on regulated proteostasis mechanisms to keep their internal compartments functioning properly. When these mechanisms fail, damaged proteins accumulate, disrupting organelles, such as the nucleus, mitochondria, endoplasmic reticulum, Golgi, and lysosomes, as well as membraneless organelles, such as stress granules, processing bodies, the ...
Yara Nabawi, Cansu Doğan, Dunja Petrović, Gülce Perçin, Seda Koyuncu, David Vilchez   +5 more
wiley   +1 more source

GCN2 in proteostasis: structural logic, signalling networks and disease

The FEBS Journal, EarlyView.
Threats to protein synthesis activate the kinase GCN2, initiating the integrated stress response (ISR). GCN2 is triggered by stalled ribosomes and uncharged tRNAs, which accumulate when amino acids are scarce. The ISR adjusts cellular physiology by promoting redox balance, protein quality control, and mitochondrial optimisation.
JiaYi Zhu, Stefan J. Marciniak
wiley   +1 more source

One day of environment‐induced heat stress causes injury to the murine kidney

Experimental Physiology, EarlyView.
Abstract Environment‐induced heat stress (EIHS) results from sustained body temperature elevation owing to prolonged exposure to heat and humidity. We hypothesized that EIHS would cause kidney injury and cellular dysfunction. To test this hypothesis, female C57 mice were exposed to EIHS (n = 14; 37.6°C, 42.0% relative humidity) or thermoneutral (TN ...
Melissa Roths, Alyona Michael, Zachary J. Schlader, Joshua T. Selsby   +3 more
wiley   +1 more source

The role of T cells in sepsis of distinct infectious aetiologies

Clinical and Translational Discovery, Volume 6, Issue 2, April 2026.
Pathogen‐specific sepsis induces mitochondrial dysfunction in T cells, leading to functional alterations. Single‐cell transcriptomics reveals subtype‐specific impairments involving reactive oxygen species accumulation, mtDNA damage, calcium dysregulation, and metabolic reprogramming.
Xuanqi Liu, Bijun Zhu, Wanxin Duan, Ruixiang Kang, Xiangdong Wang, Liyang Li   +5 more
wiley   +1 more source

Role of ATF4 in fibroblast proliferation and apoptosis induced by mechanical trauma through the miR−93-3p/Smad7 axis

Stress
Stress urinary incontinence (SUI) is a serious disease for females. This study attempts to explore the role of activating transcription factor 4 (ATF4) in mechanical trauma-induced SUI fibroblast cell proliferation and apoptosis, thereby finding a ...
Wei Li, Haitang Chen, Xueyan Hu, Peifan Yang, Mingmin Liu   +4 more
doaj   +1 more source