Results 71 to 80 of about 81,593 (273)

Cholesterol modulates acetylcholine receptor diffusion by tuning confinement sojourns and nanocluster stability [PDF]

, 2018
Translational motion of neurotransmitter receptors is key for determining receptor number at the synapse and hence, synaptic efficacy. We combine live-cell STORM superresolution microscopy of nicotinic acetylcholine receptor (nAChR) with single-particle ...
Barrantes, Francisco Jose, Camino, Pablo A., Mosqueira, Alejo   +2 more
core   +2 more sources

Identification and Characterization of an In Silico Designed Membrane‐Active Peptide with Antiviral Properties

Advanced Science, EarlyView.
An evolutionary molecular dynamics platform is used to design P1.6, a membrane‐active peptide that senses lipid packing defects in viral envelopes. P1.6 adopts a stabilized α‐helical structure upon membrane contact, disrupts virus‐like liposomes, and damages HIV‐1 particles.
Pascal von Maltitz, Niek van Hilten, Tatjana Weil, Thunchanok Thummaraj, Jeroen Methorst, Dennis Aschmann, Alexander Kros, Clarissa Read, Jasmina Gačanin, Herre Jelger Risselada, Jan Münch   +10 more
wiley   +1 more source

Sphingomyelin metabolism underlies Ras excitability for efficient cell migration and chemotaxis

Cell Structure and Function, 2023
In eukaryotic motile cells, the active Ras (Ras-GTP)-enriched domain is generated in an asymmetric manner on the cell membrane through the excitable dynamics of an intracellular signaling network.
Da Young Shin, Hiroaki Takagi, Michio Hiroshima, Satomi Matsuoka, Masahiro Ueda   +4 more
doaj   +1 more source

Impact of Melatonin Deficit on Emotional Status and Oxidative Stress-Induced Changes in Sphingomyelin and Cholesterol Level in Young Adult, Mature, and Aged Rats [PDF]

, 2022
Jana Tchekalarova, Zlatina Nenchovska, Lidia Kortenska, Veselina Uzunova, Irina Georgieva, Rumiana Tzoneva   +5 more
openalex   +1 more source

Class II Phosphoinositide 3-Kinases Contribute to Endothelial Cells Morphogenesis [PDF]

, 2013
PMCID: PMC3539993This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are ...
Catapano, AL, Chiozzotto, D, Falasca, M, Maffucci, T, Mavrommati, I, Norata, GD, Pineiro, R, Tibolla, G, Wheeler, AP   +8 more
core   +3 more sources

Engineered GM1 Intersects Between Mitochondrial and Synaptic Pathways to Ameliorate ALS Pathology

Advanced Science, EarlyView.
Amyotrophic Lateral Sclerosis (ALS) is a fatal neurodegenerative disease driven by genetic and molecular disruptions affecting energy balance, protein homeostasis, and stress responses in nerve cells. Studies using human and rodent models identified convergent defects in mitochondria and synaptic function.
Federica Pilotto, Tristan Dellazizzo Toth, Silvano Bond, Alexander Schmitz, Rim Diab, Sara Y. Ngo Tenlep, Brian Mooney, Silvia Erni, Martina Schobesberger, Olivier Scheidegger, Camille Peitsch, Smita Saxena   +11 more
wiley   +1 more source

A Simulation Study on Multicomponent Lipid Bilayer

, 2005
Simulation of a multicomponent lipid bilayer having a fixed percentage of cholesterol is done to study phase transition leading to domain formation.
Anderson, Anderson, Banerjee, Banerjee, Ben-Shaul, Bloom, Brown, Brown, Brown, de Miguel, Doniach, Ermoshkin, Evans, Ferrenberg, Harrison, Jacobson, Jayashree Saha, Lee, May, Mouritsen, Nielsen, Nielsen, Radhakrishnan, Sabra, Scherfeld, Simons, Simons, Srilekha Banerjee, Zhang   +28 more
core   +1 more source

Boron Nitride Nanomaterials Trigger Immunomodulatory Effects in Human Broncho‐Epithelial Cells by Modulating Eicosanoid Lipid Signaling

Advanced Science, EarlyView.
This study demonstrates that BNNT exposure disrupts lipid homeostasis in bronchial epithelial cell cultures and activates eicosanoid lipid biosynthesis, producing inflammatory lipid mediators like leukotrienes. These effects are more pronounced in asthmatic cell cultures compared to healthy ones.
Govind Gupta, Jonas Bossart, Sènan Mickael D'Almeida, Luis Augusto Visani de Luna, Christoph Schwärzler, Tingting Fu, Vanesa Ayala‐Nunez, Alexander Gogos, Marija Buljan, Vera M Kissling, Emmanuel Flahaut, Miguel Garcia, Cyrill Bussy, Peter Wick, Tina Buerki‐Thurnherr   +14 more
wiley   +1 more source

Chinese hamster ovary cells overexpressing the oxysterol binding protein (OSBP) display enhanced synthesis of sphingomyelin in response to 25-hydroxycholesterol

Journal of Lipid Research, 1999
25-Hydroxycholesterol negatively regulates cholesterol synthesis and activates cholesterol esterification in a variety of cultured cells. Concurrent with these effects, 25-hydroxycholesterol also stimulates the synthesis of sphingomyelin in Chinese ...
Thomas A. Lagace, David M. Byers, Harold W. Cook, Neale D. Ridgway   +3 more
doaj   +1 more source

Unraveling Lysosomal Exocytosis: From Molecular Mechanisms to Physiological Functions. [PDF]

Traffic
Lysosomal exocytosis is propelled by specific molecular mechanisms that direct its microtubule‐dependent transport and subsequent fusion with the plasma membrane. This process fulfills essential physiological functions such as plasma membrane repair, maintenance of cellular homeostasis, and participation in signal transduction.
Jiang S, Fu J, Li S, Li Z, Zhao Q, Yin Y, Yang M, Wang Y.   +7 more
europepmc   +2 more sources