Results 191 to 200 of about 57,493 (305)

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

Inhibition of Ornithine Decarboxylase 1 Mitigates Denervation‐Induced Muscle Atrophy by Suppressing Proteolysis and Preserving Muscle Stem Cell Homeostasis

Cell Proliferation, EarlyView.
Polyamine metabolism is innervation responsive and involved in denervation‐induced muscle atrophy. Inhibition of polyamine metabolism attenuates muscle atrophy by restraining proteolysis and preserving MuSCs homeostasis. Denervation‐induced activation of FAP‐derived FGF7 drives premature MuSCs activation, while DFMO suppresses this paracrine cue to ...
Mingming Zhang, Feifan Chang, Siliang Ge, Fuming Cao, Pincong Fu, Haobo Zhang, Ming Chen, Yi Li, Peifu Tang, Pengbin Yin   +9 more
wiley   +1 more source

Oxidative Stress Drives Cell Cycle Stalling, Apoptosis and Metabolic Suppression in Cystatin B Deficient EPM1 Patient iPSCs

Cell Proliferation, EarlyView.
CSTB deficient EPM1 iPS cells manifest increased lysosomal activity and oxidative stress, which lead to DNA damage, cell cycle defects and increased apoptosis. As a protective response, metabolism is suppressed. Image created by BioRender https://BioRender.com/t44oc6h.
Shekhar Singh, Lidiia Plotnikova, Teemu Tiukuvaara, Reetta Kälviäinen, Riikka H. Hämäläinen   +4 more
wiley   +1 more source

Non-coding RNAs in neurodegeneration: an axis-based, evidence-tiered mechanistic synthesis. [PDF]

Metabol Open
Ahim SS, Bandegi M, Ghanbarzadeh E, Heidarzadehpilehrood R.   +3 more
europepmc   +1 more source

The ribosome‐associated complex regulates cytosolic translation upon mitoprotein‐induced stress

The FEBS Journal, EarlyView.
Defects in mitochondrial protein import trigger a stress response. The contribution of translation regulation to such a response is only partially understood. We demonstrate that the deletion of mitochondrial surface proteins (TOM70/TOM71) leads to defects in mitochondrial biogenesis and slow growth.
Jiaxin Qian, Annika Nutz, Katja Hansen, Lea Bertgen, Mirita Franz‐Wachtel, Boris Macek, Johannes M. Herrmann, Doron Rapaport   +7 more
wiley   +1 more source

Multilayer modulation of the proteasome: new strategies for neuroprotection. [PDF]

Front Mol Neurosci
Sokolov M, Taniguchi H, Weber JJ.
europepmc   +1 more source

The ALS‐associated E425K mutation uncouples DNAJC7 from the Hsp70 chaperone cycle

The FEBS Journal, EarlyView.
DNAJC7 is a J‐domain protein that plays a key role in protein quality control by regulating Hsp70 activity and preventing protein aggregation. We find that the ALS‐associated E425K mutation in DNAJC7 disrupts productive interaction and activation of Hsp70, thereby blocking the transfer and refolding of client proteins such as TDP‐43.
Bar Elmaleh, Ofrah Faust, Rina Rosenzweig   +2 more
wiley   +1 more source

Physiological responses to mask-associated CO₂ exposure: a narrative review of acid-base balance, aging, and amyloidogenic stress. [PDF]

Front Public Health
Alghrably M, Sukareh F, Khamis LM, Kahfi J, Dhahri M, Emwas AH, Jaremko M, Lachowicz JI.   +7 more
europepmc   +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