Mitophagy: molecular mechanisms, new concepts on parkin activation and the emerging role of AMPK/ULK1 axis

R Iorio, G Celenza, S Petricca - Cells, 2021 - mdpi.com
Mitochondria are multifunctional subcellular organelles essential for cellular energy
homeostasis and apoptotic cell death. It is, therefore, crucial to maintain mitochondrial …

Beyond K48 and K63: non-canonical protein ubiquitination

M Tracz, W Bialek - Cellular & molecular biology letters, 2021 - Springer
Protein ubiquitination has become one of the most extensively studied post-translational
modifications. Originally discovered as a critical element in highly regulated proteolysis …

[HTML][HTML] Ubiquitination and receptor-mediated mitophagy converge to eliminate oxidation-damaged mitochondria during hypoxia

P Sulkshane, J Ram, A Thakur, N Reis, O Kleifeld… - Redox biology, 2021 - Elsevier
The contribution of the Ubiquitin-Proteasome System (UPS) to mitophagy has been largely
attributed to the E3 ubiquitin ligase Parkin. Here we show that in response to the oxidative …

AMPK/ULK1-mediated phosphorylation of Parkin ACT domain mediates an early step in mitophagy

CM Hung, PS Lombardo, N Malik, SN Brun… - Science …, 2021 - science.org
The serine/threonine kinase ULK1 mediates autophagy initiation in response to various
cellular stresses, and genetic deletion of ULK1 leads to accumulation of damaged …

Molecular mechanisms and regulation of mammalian mitophagy

V Choubey, A Zeb, A Kaasik - Cells, 2021 - mdpi.com
Mitochondria in the cell are the center for energy production, essential biomolecule
synthesis, and cell fate determination. Moreover, the mitochondrial functional versatility …

Temporal proteomics during neurogenesis reveals large-scale proteome and organelle remodeling via selective autophagy

A Ordureau, F Kraus, J Zhang, H An, S Park, T Ahfeldt… - Molecular cell, 2021 - cell.com
Cell state changes are associated with proteome remodeling to serve newly emergent cell
functions. Here, we show that NGN2-driven conversion of human embryonic stem cells to …

The mitochondrial permeability transition: nexus of aging, disease and longevity

H Rottenberg, JB Hoek - Cells, 2021 - mdpi.com
The activity of the mitochondrial permeability transition pore, mPTP, a highly regulated multi-
component mega-channel, is enhanced in aging and in aging-driven degenerative …

Multitasking guardian of mitochondrial quality: Parkin function and Parkinson's disease

I Kamienieva, J Duszyński… - Translational …, 2021 - Springer
The familial form of Parkinson's disease (PD) is linked to mutations in specific genes. The
mutations in parkin are one of the most common causes of early-onset PD. Mitochondrial …

Loss of neuronal Miro1 disrupts mitophagy and induces hyperactivation of the integrated stress response

G López‐Doménech, JH Howden… - The EMBO …, 2021 - embopress.org
Clearance of mitochondria following damage is critical for neuronal homeostasis. Here, we
investigate the role of Miro proteins in mitochondrial turnover by the PINK1/Parkin …

Global ubiquitylation analysis of mitochondria in primary neurons identifies endogenous Parkin targets following activation of PINK1

O Antico, A Ordureau, M Stevens, F Singh… - Science …, 2021 - science.org
How activation of PINK1 and Parkin leads to elimination of damaged mitochondria by
mitophagy is largely based on cell lines with few studies in neurons. Here, we have …