Results 171 to 180 of about 27,302,953 (278)

Human cachexia induces changes in mitochondria, autophagy and apoptosis in the skeletal muscle [PDF]

open access: yes, 2019
Cachexia is a wasting syndrome characterized by the continuous loss of skeletal muscle mass due to imbalance between protein synthesis and degradation, which is related with poor prognosis and compromised quality of life.
Alcantara, P. S.   +9 more
core   +1 more source

Copper Overload Affects α‐Synuclein Clearance Mechanisms in a Parkinson's Disease In Vitro Model

open access: yesAdvanced Biology, Volume 10, Issue 5, May 2026.
This study reveals that copper overload disrupts neuronal protein clearance, leading to the accumulation of α‐synuclein and its phosphorylated form (p‐S129). By blocking autophagy and impairing the ubiquitin–proteasome system, copper promotes toxic aggregation in dopaminergic cells.
Debora Musarò   +4 more
wiley   +1 more source

Autophagy-Related Beclin 1 and Head and Neck Cancers.

open access: yesOncoTargets and therapy, 2020
Beclin 1, a positive regulator of autophagy, behaves as a double-edged sword in tumorigenesis. Beclin 1 contributes to tumor suppression by removing defective or damaged organelles and other cellular components; however, its activity can also stimulate cancer initiation and progression.
Hu,Yang-Jie   +4 more
openaire   +3 more sources

Depletion of Beclin-1 due to proteolytic cleavage by caspases in the Alzheimer's disease brain

open access: yesNeurobiology of Disease, 2011
The Beclin-1 protein is essential for the initiation of autophagy, and recent studies suggest this function may be compromised in Alzheimer's disease (AD).
Troy T. Rohn   +5 more
doaj   +1 more source

Negative Regulation of Vps34 by Cdk Mediated Phosphorylation [PDF]

open access: yes, 2009
Vacuolar protein sorting 34 (Vps34) complexes, the class III PtdIns3 kinase, specifically phosphorylate the D3 position of PtdIns to produce PtdIns3P. Vps34 is involved in the control of multiple key intracellular membrane trafficking pathways including ...
Furuya, Tsuyoshi   +10 more
core   +1 more source

Bioinspired, Mitochondria‐Targeted Single‐Atom Nanozyme Enhances Bone Regeneration by Reprogramming Stem Cell Energy Metabolism​

open access: yesAdvanced Materials, Volume 38, Issue 26, 8 May 2026.
A bioinspired nanozyme—triphenylphosphonium (TPP)‐dendritic mesoporous silica nanoparticle (DMSN)‐Fe/Cu—mimics mitochondrial complex IV and targets mitochondria to regulate cellular energy metabolism. This approach markedly boosts bone regeneration in vivo, as demonstrated by enhanced bone volume and mineral density in critical‐sized bone defects rat ...
Yuwen Wang   +16 more
wiley   +1 more source

Autophagy-independent enhancing effects of Beclin 1 on cytotoxicity of ovarian cancer cells mediated by proteasome inhibitors

open access: yesBMC Cancer, 2012
Background The ubiquitin-proteasome system and macroautophagy (hereafter referred to autophagy) are two complementary pathways for protein degradation. Emerging evidence suggests that proteasome inhibition might be a promising approach for tumor therapy.
Liu Chuan   +8 more
doaj   +1 more source

Brainiac Caspases: Beyond the Wall of Apoptosis [PDF]

open access: yes, 2019
For the last two decades, caspases, a family of cysteine-aspartic proteases, have evolved from being considered solely as regulators of apoptosis or inflammation to having a wider range of functions.
Alonso Bellido, Isabel María   +3 more
core   +1 more source

Activated Platelet–Released Heat Shock Protein 90α Triggers Autophagy‐Dependent Neutrophil Extracellular Trap Formation and Amplifies Sepsis

open access: yesAdvanced Science, Volume 13, Issue 25, 4 May 2026.
HSP90α is significantly upregulated in platelets from sepsis patients, with its origin from megakaryocyte‐derived trafficking. Furthermore, activated platelets secrete HSP90α into the extracellular space in both free and exosome‐associated forms. Finally, extracellular HSP90α directly engages TLR4 on neutrophils to induce autophagy, leading to NET ...
Chengbo Wang   +17 more
wiley   +1 more source

The Aging Heart: Mitophagy at the Center of Rejuvenation. [PDF]

open access: yes, 2020
Aging is associated with structural and functional changes in the heart and is a major risk factor in developing cardiovascular disease. Many recent studies have focused on increasing our understanding of the basis of aging at the cellular and molecular ...
Gustafsson, Åsa B, Liang, Wenjing J
core   +1 more source

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