Results 111 to 120 of about 27,813 (194)

The Pathological Roles of Cationic Amino Acid Transporters (CATs) in Cancer

open access: yesCancer Science, EarlyView.
CAT family transporters (SLC7A1–SLC7A4) coordinate arginine allocation within the tumor microenvironment, thereby regulating cancer metabolism, mTORC1 signaling, immune responses, and metastatic progression. Emerging evidence supports context‐dependent roles for SLC7A1–SLC7A3, whereas the physiological and pathological functions of SLC7A4 remain poorly
Thant Thant Myo Oo, Yasuhiro Saito
wiley   +1 more source

Phosphorylation of Eukaryotic Initiation Factor-2α during Stress and Encystation in Entamoeba Species.

open access: yesPLoS Pathogens, 2016
Entamoeba histolytica is an enteric pathogen responsible for amoebic dysentery and liver abscess. It alternates between the host-restricted trophozoite form and the infective environmentally-stable cyst stage. Throughout its lifecycle E.
Holland M Hendrick   +5 more
doaj   +1 more source

tRNA‐Derived Small RNAs in Digestive Cancers: From Translational Regulation to Immune and Extracellular Communication

open access: yesCancer Science, EarlyView.
tRNA‐derived small RNAs (tsRNAs) function in digestive cancers across three scales: intracellular translational and metabolic control, extracellular vesicle–mediated immune remodeling, and systemic and host–microbe communication. This review organizes these mechanisms by evidence strength, from well‐established intracellular roles to emerging ...
Wang Xitan, Li Han
wiley   +1 more source

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

open access: yesThe 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   +5 more
wiley   +1 more source

Proteostasis of organelles in aging and disease

open access: yesThe 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   +5 more
wiley   +1 more source

Maintenance of p-eIF2α levels by the eIF2B complex is vital for colorectal cancer

open access: yesThe EMBO Journal
Protein synthesis is an essential process, deregulated in multiple tumor types showing differential dependence on translation factors compared to untransformed tissue.
Ivana Paskov Škapik   +22 more
doaj   +1 more source

GCN2 in proteostasis: structural logic, signalling networks and disease

open access: yesThe 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

氧乐果导致染毒大鼠内质网应激的研究

open access: yesZhongguo shiyan zhenduanxue, 2018
目的研究有机磷暴露接触对内质网的影响。方法大鼠持续60天氧乐果经口染毒,检测骨骼肌中的PERK,BiP,p-eIF2α,eIF2α,IRE1α的表达水平。结果染毒组的BiP,PERK和IRE1α的表达水平均高于Control组 ...
刘霖霖   +4 more
doaj  

Biogenesis of TNF‐α‐insights into proteostasis and inflammation

open access: yesThe 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   +3 more
wiley   +1 more source

ECTV- and VACV-induced phosphorylation of eIF2α in RK13 cells.

open access: yes, 2015
(A) Wild-type RK13 or RK13+E3L+K3L cells were mock infected or infected with the indicated VACV strains at an MOI of 5. Cell lysates were collected 6 hours post infection and subjected to SDS-PAGE and immunoblot analysis. Membranes were first probed with
Stefan Rothenburg (66518)   +4 more
core   +1 more source

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