Results 91 to 100 of about 23,291 (205)

Reduction in Synaptic Vesicle Protein Abundance but Increased Amounts of Nsg2 and Lpcat1 in Cerebral Cortices Without the Endosomal SNARE Proteins Vti1a and Vti1b

PROTEOMICS, EarlyView.
ABSTRACT Absence of the endosomal SNAREs vti1a and vti1b results in perinatal death and severe neuronal phenotypes in mice, while lack of one of these proteins results in minor phenotypes. Proteomic differences were investigated to obtain a deeper insight into processes in which vti1a and vti1b are involved.
Julia Gottschalk, Katharina Kotschnew, Julia Hahn, Thomas Patschkowski, Gabriele von Fischer von Mollard   +4 more
wiley   +1 more source

Retrograde trafficking of Argonaute 2 acts as a rate-limiting step for de novo miRNP formation on endoplasmic reticulum–attached polysomes in mammalian cells [PDF]

, 2020
microRNAs are short regulatory RNAs in metazoan cells. Regulation of miRNA activity and abundance is evident in human cells where availability of target messages can influence miRNA biogenesis by augmenting the Dicer1-dependent processing of precursors ...
Barman, Bahnisikha, Bhattacharyya, Suvendra N., Bose, Mainak, Chakrabarty, Yogaditya, Chatterjee, Susanta   +4 more
core  

Scrambled Eggs: Apoptotic cell clearance by non-professional phagocytes in the Drosophila ovary [PDF]

, 2017
This manuscript was supported by NIH grant R01 GM060574 to KM.
McCall, Kimberly, Serizier, Sandy B.
core   +1 more source

Mitochondria–lysosome contacts regulate mitochondrial fission via RAB7 GTP hydrolysis [PDF]

Nature, 2018
Both mitochondria and lysosomes are essential for maintaining cellular homeostasis, and dysfunction of both organelles has been observed in multiple diseases. Mitochondria are highly dynamic and undergo fission and fusion to maintain a functional mitochondrial network, which drives cellular metabolism.
Wong, Yvette C., Ysselstein, Daniel, Krainc, Dimitri   +2 more
openaire   +2 more sources

Amyloid‐β aggregates induce vasculopathy via ferroptosis in brain endothelial cells

Brain Pathology, EarlyView.
Blood–brain barrier (BBB) disruption is evident in brains with amyloidopathy. In this study, we demonstrate that amyloid β (Aβ) drives abnormal lipid metabolism and lipid droplet formation in brain endothelial cells, leading to lipid peroxidation and ferroptosis.
Suhyeon Son, Suji Kim, Min‐Tae Jeon, Moonseok Choi, Kyu‐Sung Kim, Suji Lee, Seung‐Yeol Nah, Do‐Geun Kim   +7 more
wiley   +1 more source

Real-time imaging of Leishmania mexicana-infected early phagosomes: a study using primary macrophages generated from green fluorescent protein-Rab5 transgenic mice [PDF]

, 2009
The small GTPase Rab5 is a key regulator of endosome/phagosome maturation and in intravesicular infections marks a phagosome stage at which decisions over pathogen replication or destruction are integrated.
Aebischer, Toni, Blackburn, Clare, Brand, Janko, Brinkmann, Volker, Hoffmann, Kirstin, Lippuner, Christoph, Paape, Daniel, Paterou, Athina, Richardson, Melville, Smith, Andrew   +9 more
core   +1 more source

Role of the Small GTPase RAB7 in the Late Endocytic Pathway [PDF]

Journal of Biological Chemistry, 1997
Rab7 is a small GTPase localized to the late endosomal compartment. Its function was investigated by overexpressing dominant negative or constitutively active mutants in BHK-21 cells. The effects of such overexpression on the internalization and/or degradation of different endocytic markers and on the morphology of the late endosomal compartment were ...
VITELLI R, SANTILLO M, LATTERO D, CHIARIELLO M, BIFULCO M, BRUNI CB, BUCCI, Cecilia   +6 more
openaire   +5 more sources

RNF13 is a previously undescribed interactor of iduronate 2‐sulfatase that modifies its glycosylation and maturation

The FEBS Journal, EarlyView.
Iduronate 2‐sulfatase (IDS; purple) is expressed as a precursor protein that goes through multiple steps of maturation, modification, and trafficking to become an active lysosomal enzyme that degrades glycosaminoglycans. Our study shows that the transmembrane ubiquitin ligases RNF13 (orange) and RNF167 (pink) heterodimerize, affecting IDS intracellular
Valérie C. Cabana, Antoine Y. Bouchard, Audrey M. Sénécal, Laurent Cappadocia, Marc P. Lussier   +4 more
wiley   +1 more source

RAB7 deficiency impairs pulmonary artery endothelial function and promotes pulmonary hypertension

The Journal of Clinical Investigation
Pulmonary arterial hypertension (PAH) is a devastating and progressive disease with limited treatment options. Endothelial dysfunction plays a central role in the development and progression of PAH, yet the underlying mechanisms are incompletely ...
Bryce Piper, Srimathi Bogamuwa, Tanvir Hossain, Daniela Farkas, Lorena Rosas, Adam C. Green, Geoffrey Newcomb, Nuo Sun, Jose A. Ovando-Ricardez, Jeffrey C. Horowitz, Aneel R. Bhagwani, Hu Yang, Tatiana V. Kudryashova, Mauricio Rojas, Ana L. Mora, Pearlly Yan, Rama K. Mallampalli, Elena A. Goncharova, David M. Eckmann, Laszlo Farkas   +19 more
doaj   +1 more source

Polarized α-synuclein trafficking and transcytosis across brain endothelial cells via Rab7-decorated carriers

Fluids and Barriers of the CNS, 2022
Parkinson’s disease is mainly caused by aggregation of α-synuclein (α-syn) in the brain. Exchange of α-syn between the brain and peripheral tissues could have important pathophysiological and therapeutic implications, but the trafficking mechanism of α ...
Parvez Alam, Mikkel R. Holst, Line Lauritsen, Janni Nielsen, Simone S. E. Nielsen, Poul Henning Jensen, Jonathan R. Brewer, Daniel E. Otzen, Morten S. Nielsen   +8 more
doaj   +1 more source