Results 141 to 150 of about 57,712 (282)

Identifying Non-Coding and Protein Regulators of Ribosome Biogenesis

, 2023
Ribosomes are the macromolecular structures necessary for all cells to produce their proteins and ultimately perform functions. The process the cell undertakes to makes ribosomes, termed ribosome biogenesis, is complex and energetically taxing.
Harold, Cecelia Marie
core  

Heat Stress Triggers Nuclear Invagination and Spatial Compartmentalization of Protein Metabolism

Cell Proliferation, EarlyView.
Cells adapt heat stress to shape a nuclear invagination region function as “protein metabolism hotspots”, where both protein production and degradation are enhanced. ABSTRACT Heat stress is a common challenge for cells, causing multiple types of cellular damage while triggering complex stress responses, including the highly conserved mechanism known as
Zhi‐Hao Zhang, Yuan‐Tao Qiu, Jing‐Yue Cao, Yi‐Feng Huang, Ye‐Lin Lan, Yu‐Li Zhao, Fu Wu, Chen‐Long Wang, Guo‐Run Tang, Jing‐Yun Ji, Zhang Zhang, Guan‐Zheng Luo   +11 more
wiley   +1 more source

A Multicellular Coordinated Network Driving Lymphovascular Space Invasion in Endometrioid Endometrial Carcinoma

Cell Proliferation, EarlyView.
Single‐cell and spatial profiling reveal that lymphovascular space invasion in endometrioid endometrial carcinoma is driven by coordinated interactions among metastatic epithelium, fibroblasts, immune cells, and endothelium. This multicellular network promotes matrix remodelling, angiogenesis, and immune evasion, forming a pro‐metastatic niche that ...
Wendi Guo, Tianxiang Liu, Runling Ren, Na Li, Wenwen Zhang, Jingwen Si, Yongjun Piao, Yuanjing Hu   +7 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

Genetic dissection reveals distinct contributions of the eS31 N‐terminal domain to translational accuracy in Saccharomyces cerevisiae

The FEBS Journal, EarlyView.
The eukaryote‐specific N‐terminal domain (NTD) of eS31 uses two distinct strategies to maintain translation fidelity. During elongation, a positively charged “hotspot” fine‐tunes the selection of incoming aa‐tRNA. During termination, the entire NTD acts as a structural scaffold to ensure the correct positioning of the release factor eRF1.
Qingxuan Gao, Hiroshi Otsuka, Kei Endo, Koichi Ito   +3 more
wiley   +1 more source

Biogenesis of TNF‐α‐insights into proteostasis and inflammation

The FEBS Journal, EarlyView.
TNF‐α biogenesis, trafficking, and signalling are tightly and reciprocally coupled to cellular proteostasis systems, including ER chaperones and endoplasmic reticulum‐associated degradation. This bidirectional crosstalk determines whether TNF‐α responses are adaptive or proteotoxic.
Bailasan Haidar, Céline Philippe, Eric Chevet, Jiří Zahradník   +3 more
wiley   +1 more source

Arsenite methyltransferase 3 is required for mitochondrial function and hepatic lipid metabolism

The FEBS Journal, EarlyView.
AS3MT is a protein that helps the body process arsenic, a naturally occurring toxin found in water and soil. We discovered it also helps cells make and use energy properly. Without AS3MT, cells' mitochondria do not work well, leading to fatty liver and reduced activity. Increasing AS3MT in liver cells restores energy and protects against arsenic damage,
Patrice Delaney, James Griffin, Nouf Khan, Balnur Ibrash, Matthew J. O'Connor, Tomas Venit, Elizabeth Mayela Ambrosio, Spiros A. Pergantis, Elke Ober, Piergiorgio Percipalle, Kirsten C. Sadler   +10 more
wiley   +1 more source

Transgenic selection and underlying mechanisms in apicomplexan parasites

The FEBS Journal, EarlyView.
Transgenic selection markers have driven genetic engineering in apicomplexans, enabling precise, iterative experiments. This review discusses mechanistic details of drug selection markers, strategies for marker recycling, and practical considerations for several clinically relevant parasites.
Swaroop Peddiraju, Rakhee Lohia, Nishith Gupta   +2 more
wiley   +1 more source

Ubiquitin and ubiquitin‐like modifications in the endoplasmic reticulum stress response

The FEBS Journal, EarlyView.
Endoplasmic reticulum (ER) stress activates various proteostasis control processes, including the unfolded protein response, ribosome‐associated quality control, and ER‐associated degradation. Ubiquitin and ubiquitin‐like modifications dynamically regulate these processes to determine cell fate, promoting adaptation or inducing cell death.
Tony Avril, Matthieu Le Gallo, Elodie Lafont   +2 more
wiley   +1 more source