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Showing 1-30 of 48 results for "810150c" within Papers
Mingming Wang et al.
Langmuir : the ACS journal of surfaces and colloids, 34(25), 7509-7518 (2018-06-01)
This article reports a high-yield procedure for preparing microsized (giant) Janus liposomes via gel-assisted lipid swelling and clustering behavior of these liposomes directed by biotin-avidin affinity binding. Confocal fluorescence microscopy reveals in detail that these new lipid colloidal particles display
Megan B Miller et al.
The Journal of biological chemistry, 290(21), 13541-13555 (2015-04-12)
Previous studies revealed an essential role for the lipid-binding Sec14 domain of kalirin (KalSec14), but its mechanism of action is not well understood. Because alternative promoter usage appends unique N-terminal peptides to the KalSec14 domain, we used biophysical, biochemical, and
Ghazi Ben Messaoud et al.
Soft matter, 16(10), 2540-2551 (2020-02-26)
Lipid lamellar hydrogels are a class of soft materials composed of a defectuous lipid lamellar phase, where defects are classically stabilized by polymer or surfactant inclusions in lipid membranes. We have recently shown that bolaform microbial glucolipids, composed of a
Yasunori Watanabe et al.
The Journal of biological chemistry, 295(10), 3257-3268 (2020-02-02)
Eukaryotic cells are compartmentalized to form organelles, whose functions rely on proper phospholipid and protein transport. Here we determined the crystal structure of human VAT-1, a cytosolic soluble protein that was suggested to transfer phosphatidylserine, at 2.2 Å resolution. We
Mudassar Mumtaz Virk et al.
Langmuir : the ACS journal of surfaces and colloids, 34(1), 395-405 (2017-12-13)
Hybrid vesicles, comprising blends of amphiphilic block copolymers and phospholipids, have attracted significant attention recently because of their unique combination of chemical and physical properties. We report a method to make unilamellar hybrid vesicles with diameters of 100 nm by
A new class of synthetic retinoid antibiotics effective against bacterial persisters
Kim W, et al.
Nature, 556(7699), 103-103 (2018)
Erdem Karatekin et al.
Nature protocols, 7(5), 903-920 (2012-04-21)
Many biological processes rely on membrane fusion, and therefore assays to study its mechanisms are necessary. Here we report an assay with sensitivity to single-vesicle, and even to single-molecule events using fluorescently labeled vesicle-associated v-SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein
Huan Bao et al.
Nature, 554(7691), 260-263 (2018-02-09)
The fusion pore is the first crucial intermediate formed during exocytosis, yet little is known about the mechanisms that determine the size and kinetic properties of these transient structures. Here, we reduced the number of available SNAREs (proteins that mediate
Margrethe A Boyd et al.
Biophysical journal, 115(7), 1307-1315 (2018-09-17)
Cells dynamically regulate their membrane surface area during a variety of processes critical to their survival. Recent studies with model membranes have pointed to a general mechanism for surface area regulation under tension in which cell membranes unfold or take
Yang Liu et al.
Nature communications, 10(1), 5108-5108 (2019-11-11)
Mounting evidence suggests that the tumor microenvironment is profoundly immunosuppressive. Thus, mitigating tumor immunosuppression is crucial for inducing sustained antitumor immunity. Whereas previous studies involved intratumoral injection, we report here an inhalable nanoparticle-immunotherapy system targeting pulmonary antigen presenting cells (APCs)
Spatiotemporal control of coacervate formation within liposomes
Deshpande S, et al.
Nature Communications, 10(1), 1800-1800 (2019)
Qing Wang et al.
Biophysical journal, 115(4), 664-678 (2018-08-08)
Using Förster resonance energy transfer, raft/liquid-ordered-domain formation was assessed in asymmetric vesicles containing outer leaflets composed of high-Tm (melting temperature) saturated phosphatidylcholines (diC18:0PC, diC16:0PC, diC15:0PC, or diC14:0PC), low-Tm unsaturated dioleoylphosphatidylcholine (DOPC) and cholesterol, and inner leaflets composed of lipids that
Laure Gibot et al.
Cancers, 12(2) (2020-02-13)
The use of nanocarriers for hydrophobic photosensitizers, in the context of photodynamic therapy (PDT) to improve pharmacokinetics and bio-distribution, is well-established. However, the mechanisms at play in the internalization of nanocarriers are not well-elucidated, despite its importance in nanocarrier design.
Wajih Anwer et al.
Biophysical journal, 118(5), 1032-1043 (2020-02-07)
Excessive accumulation of acylcarnitines (ACs), often caused by metabolic disorders, has been associated with obesity, arrhythmias, cardiac ischemia, insulin resistance, etc. Mechanisms whereby elevated ACs might contribute to pathophysiological effects remain largely unexplored. We have aimed to gain insight into
Mart G F Last et al.
ACS nano, 14(4), 4487-4498 (2020-04-03)
Membraneless organelles formed by liquid-liquid phase separation are dynamic structures that are employed by cells to spatiotemporally regulate their interior. Indeed, complex coacervation-based phase separation is involved in a multitude of biological tasks ranging from photosynthesis to cell division to
Samuel T Hess et al.
Proceedings of the National Academy of Sciences of the United States of America, 104(44), 17370-17375 (2007-10-26)
Organization in biological membranes spans many orders of magnitude in length scale, but limited resolution in far-field light microscopy has impeded distinction between numerous biomembrane models. One canonical example of a heterogeneously distributed membrane protein is hemagglutinin (HA) from influenza
Hudson P Pace et al.
Analytical chemistry, 90(21), 13065-13072 (2018-10-24)
Over the last two decades, supported lipid bilayers (SLBs) have been extensively used as model systems to study cell membrane structure and function. While SLBs have been traditionally produced from simple lipid mixtures, there has been a recent surge in
A triple chain polycationic peptide-mimicking amphiphile - efficient DNA-transfer without co-lipids.
Shashank Reddy Pinnapireddy et al.
Biomaterials science, 8(1), 232-249 (2019-11-05)
Non-viral gene delivery in its current form is largely dependent upon the ability of a delivery vehicle to protect its cargo in the extracellular environment and release it efficiently inside the target cell. Also a simple delivery system is required
Sathish Ramakrishnan et al.
Langmuir : the ACS journal of surfaces and colloids, 34(20), 5849-5859 (2018-04-26)
In vivo membrane fusion primarily occurs between highly curved vesicles and planar membranes. A better understanding of fusion entails an accurate in vitro reproduction of the process. To date, supported bilayers have been commonly used to mimic the planar membranes.
Sanjay Arora et al.
ACS chemical neuroscience, 11(11), 1620-1633 (2020-05-01)
Alzheimer's disease (AD), the most common cause of dementia, inflicts enormous suffering to patients and their family members. It is the third deadliest disease, affecting 46.8 million people worldwide. Brain-derived neurotrophic factor (BDNF) is involved in the development, maintenance, and
Max Piffoux et al.
ACS nano, 12(7), 6830-6842 (2018-07-06)
Extracellular vesicles (EVs) are recognized as nature's own carriers to transport macromolecules throughout the body. Hijacking this endogenous communication system represents an attractive strategy for advanced drug delivery. However, efficient and reproducible loading of EVs with therapeutic or imaging agents
Phosphatidylserine and phosphatidylethanolamine in mammalian cells: two metabolically related aminophospholipids
Vance JE
Journal of Lipid Research, 49(7), 1377-1387 (2008)
Kenta Okuno et al.
Biochimica et biophysica acta. Biomembranes, 1862(9), 183377-183377 (2020-05-29)
Photopolymerizable lipids, such as diacetylene lipids have attracted much attention for their ability to stabilize lipid bilayer structure. In this study, we investigated the phase separation behavior of a lipid bilayer containing 1,2‑bis(10,12‑tricosadiynoyl)‑sn‑glycero‑3‑phosphocholine (DiynePC). The phase separation behavior of liposomes
Yachong Guo et al.
ACS nano (2018-11-20)
Increasing awareness of bioeffects and toxicity of nanomaterials interacting with cells puts in focus the mechanisms by which nanomaterials can cross lipid membranes. Apart from well-discussed energy-dependent endocytosis for large objects and passive diffusion through membranes by solute molecules, other
Naoki Yoshikawa et al.
Pharmaceutics, 12(4) (2020-04-16)
Understanding the in vivo fate of lipoplex, which is composed of cationic liposomes and DNA, is an important issue toward gene therapy. In disease conditions, the fate of lipoplex might change compared with the normal condition. Here, we examined the
Sigalit Meker et al.
Langmuir : the ACS journal of surfaces and colloids, 34(32), 9548-9560 (2018-07-19)
Amyloid-β (Aβ) peptide has been implicated in Alzheimer's disease, which is a leading cause of death worldwide. The interaction of Aβ peptides with the lipid bilayers of neuronal cells is a critical step in disease pathogenesis. Recent evidence indicates that
Heun Jin Lee et al.
Proceedings of the National Academy of Sciences of the United States of America, 105(49), 19253-19257 (2008-12-03)
Recent advances have enabled 3-dimensional reconstructions of biological structures in vivo, ranging in size and complexity from single proteins to multicellular structures. In particular, tomography and confocal microscopy have been exploited to capture detailed 3-dimensional conformations of membranes in cellular
Oliver Goldmann et al.
Journal of controlled release : official journal of the Controlled Release Society, 316, 292-301 (2019-11-13)
Staphylococcus aureus is a major cause of severe invasive infections. The increasing incidence of infections caused by antibiotic-resistant strains such as methicillin-resistant S. aureus (MRSA), calls for exploration of new approaches to treat these infections. Mupirocin is an antibiotic with
Daichi Yamaura et al.
Langmuir : the ACS journal of surfaces and colloids, 34(19), 5615-5622 (2018-04-18)
Artificial bilayer lipid membranes (BLMs) provide well-defined systems for investigating the fundamental properties of membrane proteins, including ion channels, and for screening the effect of drugs that act on them. However, the application of this technique is limited due to
Non Miyata et al.
The Journal of cell biology, 214(1), 77-88 (2016-06-30)
Phosphatidylethanolamine (PE) is an essential phospholipid for mitochondrial functions and is synthesized mainly by phosphatidylserine (PS) decarboxylase at the mitochondrial inner membrane. In Saccharomyces cerevisiae, PS is synthesized in the endoplasmic reticulum (ER), such that mitochondrial PE synthesis requires PS
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