Results 31 to 40 of about 1,734 (156)

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

The FEBS Journal, Volume 293, Issue 18, Page 5585-5599, September 2026.
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, Volume 293, Issue 18, Page 5600-5626, September 2026.
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

Mitochondrial ultrastructural and atpase changes during the life cycle of Ascaris Suum

Memorias do Instituto Oswaldo Cruz, 1982
Ultrastructural morphology and ATPase specific activities of mitochondria isolated from 1-celled fertilized egg, 10-day embryo, 21-day infective larvae and adult body wall muscle of Ascaris suum and rat liver were determined and compared.
G. E. Rodrick, S. D. Long, W. A. Sodeman Junior, D. L. Smith   +3 more
doaj   +1 more source

GCN2 in proteostasis: structural logic, signalling networks and disease

The FEBS Journal, Volume 293, Issue 18, Page 5627-5644, September 2026.
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

Disruption of iron metabolism resulting from Dmt1/Slc11a2 deficiency compromises Notch protein degradation and transcriptional activation

The FEBS Journal, Volume 293, Issue 17, Page 5383-5395, September 2026.
Divalent metal transporter 1 (Dmt1) maintains iron homeostasis and lysosomal proteostasis required for physiological Notch receptor–ligand signaling. Dmt1 loss lowers iron storage capacity (ferritin), increasing intracellular Fe2+, driving ROS and lipid peroxidation, and leading to lysosomal/mitochondrial dysfunction.
Rui Zhang, Somaieh Ahmadian, Jolanda Piepers, Florian Bock, Tom Keulers, Marc A. Vooijs   +5 more
wiley   +1 more source

Hsp70 diversification and repurposing across the tree of life: Lessons from the evolutionary and mechanistic trajectory of the Hsp70–Hsp110 chaperone system

The FEBS Journal, Volume 293, Issue 18, Page 5541-5557, September 2026.
Evolutionary and mechanistic divergence in the Hsp70–Hsp110 chaperone system. Prokaryotic Hsp70s probably diversified into multiple orthologues that cooperated with co‐chaperones such as JDPs and NEF, forming increasingly complex proteostasis networks.
Pierre Goloubinoff, Paolo De Los Rios, Mathieu E. Rebeaud   +2 more
wiley   +1 more source

Estudos in vitro usando um sistema de transporte de DNA plasmídico (pDNA) com afinidade pela mitocôndria [PDF]

, 2018
A mitocôndria é um organelo celular que possui o seu próprio genoma, o ADN mitocondrial (ADNmt). Apesar de bastante pequeno quando comparado com o ADN nuclear (ADNn), mutações ao nível do ADNmt são bastante frequentes devido à falta de mecanismos de ...
Melo, Ana Cristina Candeias
core  

Mitochondrial transfer in acute myeloid leukaemia and multiple myeloma: Mechanisms, consequences and potential therapeutic opportunities

The FEBS Journal, Volume 293, Issue 17, Page 5107-5120, September 2026.
Mitochondria can be transferred from bone marrow cells to cancer cells in acute myeloid leukaemia and multiple myeloma, boosting tumour energy production, growth, and drug resistance. This review highlights key transfer mechanisms and shows how targeting mitochondrial movement and dynamics may offer new therapeutic strategies to limit cancer ...
Ebubechukwu Nwarunma, Mark T. S. Williams   +1 more
wiley   +1 more source

Pérdida secundaria de la fotosíntesis: el caso de las algas incoloras y de algunos parásitos

Botan‪ical Sciences, 2017
Esta  revisión  pretende ilustrar un  fenómeno muy  interesante e n la  naturaleza: la perdida secundaria de  la fotosíntesis y sus efectos en los genomas del cloroplasto y de la mitocondria. Se describe cómo los genomas de los plástidos incoloros se han
Emma Berta Gutiérrez-Cirios-Madrid
doaj   +1 more source

Stimulating proteasomal degradation in human proteinopathies

The FEBS Journal, Volume 293, Issue 18, Page 5514-5540, September 2026.
The proteasome mediates the degradation of a wide range of proteins. Boosting proteasomal degradation may be beneficial in several disease contexts and can be achieved either by modulating proteasome activity or by improving substrate delivery. Proteasome activity can be enhanced by increasing proteasome abundance, inducing constitutive gate opening ...
Maria E. Gierisch, Enrica Barchi, Nico P. Dantuma   +2 more
wiley   +1 more source