Abstract：
:Human serum amyloid A (SAA) is a precursor protein of AA amyloidosis and a component of high-density lipoproteins (HDLs), thus it is essential to investigate the amyloid fibril formation of SAA under a lipid environment. We used synthetic fragment peptides corresponding to the N-terminal (residues 1-27) and central (residues 43-63) regions of the SAA molecule, which are known to have amyloidogenic properties. Measurements of tryptophan fluorescence in conjunction with circular dichroism showed that SAA (1-27) peptide binds to neutral and acidic lysophospholipids, whereas SAA (43-63) peptide binds only to acidic lysophospholipids. For both these SAA peptides, binding to lysophospholipids inhibited heparin-induced amyloid-like fibril formation by stabilizing the α-helical structure. However, acidic lysophospholipids implied a possibility to promote fibril formation of SAA (1-27) peptide by themselves. These results suggest that the amyloid fibril formation of SAA may be modulated by altering the lipid head group composition of HDLs during metabolism.
journal_name
Chem Phys Lipidsjournal_title
Chemistry and physics of lipidsauthors
Tanaka M,Nishimura A,Takeshita H,Takase H,Yamada T,Mukai Tdoi
10.1016/j.chemphyslip.2016.11.004subject
Has Abstractpub_date
2017-01-01 00:00:00pages
6-12eissn
0009-3084issn
1873-2941pii
S0009-3084(16)30120-7journal_volume
202pub_type
杂志文章abstract：:The proteolytic activity of an aspartyl protease of Mucor miehei was correlated with the adsorption of the protease to lipid vesicles. It was observed that the presence of phosphatidylethanolamines (PE's) in the membrane increased the enzyme activity in a 20% in the gel phase and 10% in the fluid phase. The effects of...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/s0009-3084(02)00188-3
更新日期：2003-01-01 00:00:00
abstract：:We consider the situation of integral membrane proteins in a lipid bilayer matrix where the size of the polar group of the protein is important in determining the lateral packing of the proteins. We represent the cross-section of the protein hydrophobic core as a hexagon moving on a lattice, and represent the projecti...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/0009-3084(88)90041-2
更新日期：1988-04-01 00:00:00
abstract：:The role of membrane cholesterol as a crucial regulator in the structure and function of membrane proteins and receptors is well documented. However, there is a lack of consensus on the mechanism for such regulation. We have previously shown that the function of an important neuronal receptor, the serotonin1A receptor...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2016.02.004
更新日期：2016-03-01 00:00:00
abstract：:We investigated the effect of pegylation on the physical stability, morphology and membrane integrity of arsonoliposomes. Arsonoliposomes composed of distearoylglycerophosphocholine (DSPC), cholesterol (Chol) and the palmitoyl side chain arsonolipid (with concentrations ranging from 0 mol% [DSPC/Chol vesicles] to 53 m...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2005.11.003
更新日期：2006-02-01 00:00:00
abstract：:The concentration of TL in Penaeus kerathurus muscle and cephalothorax was 1.03+/-0.04 (75.9+/-0.8% of which was PhL) and 2.36+/-0.07% (45.5+/-0.8% of which was PhL) of the wet tissue, respectively. The phosphatidylethanolamine represented 26.4+/-0.6% (85.6% diacyl- and 14.4% alkyl-acyl- or alkenyl-acyl-analogues) of ...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2008.01.003
更新日期：2008-04-01 00:00:00
abstract：:The effects of Ca2+ on rotational and translational diffusion of lipids in multilamellar dimyristoylphosphatidylcholine (DMPC)-water systems were investigated by time-resolved phosphorescence anisotropy steady-state fluorescence polarization and fluorescence recovery after photobleaching (FRAP) experiments. Above the ...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/0009-3084(86)90021-6
更新日期：1986-10-01 00:00:00
abstract：BACKGROUND:In this study, we aimed to compare the serum lipid profile and fatty acid (FA) compositions of erythrocyte membrane (EM) and plasma in three different patient groups (group 1: type 2 diabetes mellitus (T2DM)+end-stage renal disease (ESRD), group 2: ESRD, group 4: T2DM) and healthy controls (group 3) simultan...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2013.12.011
更新日期：2014-02-01 00:00:00
abstract：:The effect of several synthetic peptides based on the sequence of human pulmonary surfactant-associated protein B (SPB) on the molecular packing of model membrane lipids (7:1 dipalmitoyl phosphatidylcholine (DPPC)/dipalmitoyl phosphatidylglycerol (DPPG)) was studied using fluorescence anisotropy. This information was ...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/0009-3084(91)90039-e
更新日期：1991-12-01 00:00:00
abstract：:In the present work, we report the physico-chemical properties and structural characteristics of special polyhydroxy fatty acid nanoparticles after their fusion by means of attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), differential scanning calorimetry (DSC), ...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2010.01.006
更新日期：2010-03-01 00:00:00
abstract：:The synthesis and self-assembling properties of a model compound in a new class of cationic phospholipids with a highly unsaturated conjugated fatty acid are described. In addition, the potential of this new lipid as a nucleic acid carrier was evaluated through lipoplex formulations employing 1,2-dioleoyl-sn-glycero-3...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2013.03.002
更新日期：2013-05-01 00:00:00
abstract：:In this work we studied a binary lipid matrix of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanolamine (POPE) and 1-palmitoyl-2-oleoyl-sn-glycero-3-phospho-(1'-rac-glycerol) (POPG), a composition that mimics the inner membrane of Escherichia coli. More specifically, liposomes with varying fractions of POPG were analys...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2014.07.009
更新日期：2014-10-01 00:00:00
abstract：:Racemic 1-O-(2-methyloctadecyl)-2-O-acetyl-glycero-3-phosphocholine, a branched chain PAF species, was prepared by chemical synthesis and investigated for biological activity on human blood platelets in vitro. The synthesis started from 2-O-benzylglycerol and 2-methyloctadecyl-1-methyl sulfonate and was accomplished i...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/0009-3084(91)90017-6
更新日期：1991-11-01 00:00:00
abstract：:A fluorescent assay for Clostridium perfringens phospholipase C is described using 1-palmitoyl-2-[6(pyren-1-yl)hexanoyl]-sn-glycero-3- phospho-N-(trinitrophenyl)aminoethanol (PPHTE) as the substrate. This method is based on the decrease of the quenching of pyrene monomer fluorescence when phospholipase C hydrolyzes PP...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/0009-3084(91)90064-i
更新日期：1991-08-01 00:00:00
abstract：:The ionic transport properties, capacitance and breakdown voltage of bilayer macrovesicles made from lecithin, dodecaprenol and their mixtures have been studied. The electrical measurements showed that polyprenol in lipid bilayers increases membrane permeability and elasticity, and decreases membrane thickness. Some p...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/0009-3084(86)90116-7
更新日期：1986-03-01 00:00:00
abstract：:A study of the vibrational behavior of five saturated monoacid triacylglycerides is performed by Raman spectroscopy at room temperature in the 3100-500 cm(-1) spectral range. The splitting of the CO stretching mode leads to conclude on the existence of two or three geometries of CO in the "knot" group OCO. The CO stre...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2004.12.009
更新日期：2005-04-01 00:00:00
abstract：:The effect of Lp(a) on lipid metabolism in cells cultured from unaffected human aortic intima has been investigated. Lp(a) isolated from the blood of healthy subjects failed to alter intracellular neutral lipid content. On the other hand, Lp(a) obtained from coronary atherosclerosis patients induced a 1.5- to 2-5-fold...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/0009-3084(94)90135-x
更新日期：1994-01-01 00:00:00
abstract：:The MARTINI coarse-grained model is used to gain insight into the association of WALP23 helices in three different lipid membranes: DMPC, DPPC and DOPC. Potentials of mean force describing the association of two WALP23 helices embedded in different lipid bilayers indicate no barrier of association and a stabilization ...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2013.02.001
更新日期：2013-04-01 00:00:00
abstract：:Even though lysophospholipids have attracted much interest in recent years on account of their unique bioactivity, research related to lysophospholipids is usually hampered by problems associated with standard sample preparation and discrimination of regioisomers. Herein, we demonstrate a quick tin-chemistry-based syn...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2016.09.003
更新日期：2016-10-01 00:00:00
abstract：:Fourier Transform Infra-red and Raman Spectroscopies indicate that 7 alpha-hydroxycholesterol and 7-ketocholesterol have a diminished capacity to condense (increase the packing order of) fluid-state dipalmitoylphosphatidylcholine (DPPC) acyl chains when compared with the effects of cholesterol and the other oxidized s...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/0009-3084(86)90126-x
更新日期：1986-08-01 00:00:00
abstract：:A complex mixture of monoacylglycerols, identified as (C30--C36) corynomycoloylglycerols was isolated from the diethyl ether/acetone-soluble lipids of Corynebacterium pseudotuberculosis. ...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/0009-3084(79)90055-0
更新日期：1979-09-01 00:00:00
abstract：:Production of conjugated linoleic acids (CLA) using castor oil as starting material involves conversion of ricinoleic acid to methyl 12-mesyloxy-octadec-9-enoate (MMOE) followed by dehydration. This process usually uses 1,8-diazabicyclo-(5.4.0)-undec-7-ene (DBU) as an expensive dehydrating reagent. The present study r...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/s0009-3084(02)00052-x
更新日期：2002-10-01 00:00:00
abstract：:The properties of dipalmitoylphosphatidylcholine (DPPC):6-ketocholestanol bilayer at 50 mol% sterol were studied using the molecular dynamics simulation technique. Our simulations were performed at constant pressure and temperature on a nanosecond time scale. Data from this simulation were compared to the results of o...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/s0009-3084(01)00160-8
更新日期：2001-07-01 00:00:00
abstract：:Accumulation of excess non-esterified free cholesterol (FC) in macrophages is a key factor in macrophage death during late stages of atheroslerosis. Raising FC content in macrophages has been shown to trigger Rac activation and actin polymerisation and to inhibit cell migration. Here, the plasma membrane distribution ...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2008.04.009
更新日期：2008-08-01 00:00:00
abstract：:Understanding how stereochemistry affects interactions with cell membranes is important for effective drug development. Chirality has been shown to greatly effect pharmaceutical distribution and metabolism within the cell. However it has been thought that interactions with, and passive diffusion through, the membrane ...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2018.05.002
更新日期：2018-08-01 00:00:00
abstract：:Anandamide (N-arachidonoylethanolamine) has been identified as an endogenous ligand of the G-protein coupled cannabinoid CB(1) receptor. Recent studies have postulated the existence of carrier-mediated anandamide transport which is involved in the termination of the biological effects of anandamide. A membrane bound a...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章,评审
doi：10.1016/s0009-3084(00)00185-7
更新日期：2000-11-01 00:00:00
abstract：:The addition of hydrophilic and hydrophobic molecules to the 1-monooleoyl glycerol (MO)/water (W) system has been investigated at a molecular level by 13C nuclear magnetic resonance (NMR) relaxation. Depending on the nature of the additive, the liquid crystalline phases of the MO/W binary system are modified. The 13C ...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/s0009-3084(00)00201-2
更新日期：2001-03-01 00:00:00
abstract：PURPOSE:The present research work involves Quality by Design (QbD)-based fabrication of lipid nanoconstructs (LNC) of paliperidone (PPD) bearing superior biopharmaceutical attributes. METHODS:LNC of paliperidone was prepared by melt emulsification-probe sonication and high-pressure homogenization method followed by op...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2020.105005
更新日期：2021-01-01 00:00:00
abstract：:Interactions of the peptides melittin and magainin with phospholipid vesicle membranes have been studied using fluorescence correlation spectroscopy. Molecular interactions of melittin and magainin with phospholipid membranes are performed in rhodamine-entrapped vesicles (REV) and in rhodamine-labelled phospholipid ve...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/s0009-3084(99)00113-9
更新日期：2000-01-01 00:00:00
abstract：:A structural studies have been performed on new complex glycolipids extracted from hog gastric mucosa by 0.4 M sodium acetate in methanol-chloroform-water, and which were purified to homogeneity by DEAE-Sephadex and Florisil column chromatography and by preparative thin-layer chromatography in three solvent systems. F...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/0009-3084(77)90055-x
更新日期：1977-09-01 00:00:00
abstract：:Lipids play an important role in the maturation, viability and function of sperm cells. In this study, we examined the neutral and polar lipid composition of boar spermatozoa by thin-layer chromatography/mass spectrometry. Main representatives of the neutral lipid classes were diacylglycerols containing saturated (myr...
journal_title：Chemistry and physics of lipids
pub_type： 杂志文章
doi：10.1016/j.chemphyslip.2013.11.001
更新日期：2014-01-01 00:00:00
