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Nakao T, Goto M, Kurashina M, Tamai N, Yasuzawa M, Matsuki H. Temperature- and Pressure-Induced Bilayer Phase Transitions of an Amide-Linked Phosphatidylcholine: A Contrasting Effect of Chain-Linkage Type. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20210395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Toshiki Nakao
- Graduate School of Advanced Technology and Science, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan
| | - Masaki Goto
- Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima 770-8513, Japan
| | - Masashi Kurashina
- Department of Applied Chemistry, Division of Science and Technology, Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan
| | - Nobutake Tamai
- Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima 770-8513, Japan
| | - Mikito Yasuzawa
- Department of Applied Chemistry, Division of Science and Technology, Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan
| | - Hitoshi Matsuki
- Department of Bioengineering, Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima 770-8513, Japan
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Ariyasu T, Ike O, Hitomi S, Wada H, Okumura Y, Sunamoto J. Sensitization of Nude Mice Using Direct Liposome Transfer of Tumor Cell Antigens. J BIOACT COMPAT POL 2016. [DOI: 10.1177/088391159601100302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Transplantable human squamous cell carcinoma cells were coincubated with 1,2-dimyristoylamido-1,2-deoxyphosphatidyl-choline (D14DPC) liposomes. These proteoliposomes and disrupted tumor cell suspensions were injected subcutaneously into two groups of nude mice, respectively, while the third group was untreated. Ten days previously, tumor had been implanted into both of the mice forefeet. In the seven-week old mice pretreated with the proteoliposomes, one of the tumors disappeared, while another tumor remained unchanged in size and the remaining two tumors regrew. Regrowth of the tumors was observed in both control groups. Their size and weight were significantly larger (p < 0.05) than those in the proteoliposome group. In all the 5-week old mice, the tumor masses grew but the size and weight of the tumor in the proteoliposome treated group were significantly smaller (p < 0.05) than those in the other two groups. The results showed the effectiveness of the proteoliposome treatment as a possible clinical application.
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Affiliation(s)
| | | | | | - Hiromi Wada
- Department of Thoracic Surgery, Chest Disease Research Institute, Kyoto University, 53, Shogoin Kawaharacho, Sakyo-ku, Kyoto, Japan
| | | | - Junzo Sunamoto
- Department of Polymer Chemistry, Faculty of Engineering, Kyoto University, Kyoto, Japan
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3
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Bragina NA, Chupin VV. Methods of synthesis of deuterium-labelled lipids. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc1997v066n11abeh000369] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Takahashi H, Okumura Y, Sunamoto J. Structure and thermal history dependant phase behavior of hydrated synthetic sphingomyelin analogue: 1,2-dimyristamido-1,2-deoxyphosphatidylcholine. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2005; 1713:40-50. [PMID: 15950928 DOI: 10.1016/j.bbamem.2005.04.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2005] [Revised: 04/28/2005] [Accepted: 04/29/2005] [Indexed: 11/18/2022]
Abstract
The physical properties of hydrated multilamellar sample of 1,2-dimyristamido-1,2-deoxyphosphatidylcholine (DDPC) were investigated by means of differential scanning calorimetry (DSC), static X-ray diffraction, and simultaneous DSC and X-ray diffraction. The DDPC is a synthetic sphingomyelin analogue and has two amide bonds in its hydrophobic parts. This paper reports on metastable phase behavior of the hydrated DDPC sample. By cooling from a chain-melted state at the rates of greater than 4 degrees C min(-1), hydrated DDPC bilayers form a metastable gel phase. In the gel phase, the hydrophobic chains are tilted with respect to the bilayer normal, as like the gel phase of glycero-phosphatidylcholines. By heating, the metastable gel phase is transformed in to a stable phase associated with an exothermic heat event at 18.3 degrees C (DeltaH=14.6 kJ mol(-1)) and then the stable phase is transformed into a liquid-crystalline phase at 25.6 degrees C (DeltaH=42 kJ mol(-1)). The incubation at 17 degrees C for more than 1 h also induces the formation of the stable phase. In the stable phase, the hydrophobic chains are packed into highly ordered crystal-like structure. However, the X-ray diffraction pattern of the stable phase suggested that the entire DDPC molecules do not form a two-dimensional molecular ordered lattice, differing from normal subgel phase of glycero-phosphatidylcholines. The structure and phase behavior of DDPC revealed by the present study are discussed from the viewpoint of hydrogen bonds.
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Affiliation(s)
- Hiroshi Takahashi
- Department of Physics, Gunma University, 4-2 Aramaki, Maebashi 371-8510, Japan.
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5
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Ueda T, Zhou Z, Sunamoto J. Asymmetric Distribution of Artificial Boundary Lipid as Analysed by NMR Deconvolution. CHEM LETT 1999. [DOI: 10.1246/cl.1999.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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6
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Nakamura M, Tsujii K, Sunamoto J. Liposome-induced release of cell membrane proteins from intact tissue epithelium. Med Biol Eng Comput 1998; 36:645-53. [PMID: 10367452 DOI: 10.1007/bf02524438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
During extraction and purification, membrane proteins very often undergo denaturation and deactivation. To overcome this problem, the authors have tried to establish a better methodology to make the study at in vivo tissue level, not at the isolated cellular level, possible and easier. This is in vivo direct exposure of animal tissue to the liposome that contains an artificial boundary lipid (D14DPC, 1,2-dimyristamido-1,2,-deoxyphosphatidylcholine). Bullfrog and rat tongues were used. To confirm the reasonableness of this methodology, several different techniques were adopted; the nerve response study, gel electrophoretic analysis, quartz crystal microbalance (QCM) measurement and the affinity gelchromatography. When the tongue was exposed to the D14DPC-containing DMPC liposome, a significant amount of membrane protein was found in the recovered liposome (this was the production of proteoliposome). The nerve response in the neurophysiological measurement to several taste stimuli, such as L-alanine, L-leucine, sucrose and quinine hydrochloride significantly decreased when the tongue was exposed to the same liposome. These phenomena were common to both bullfrog and rat tongues. The nerve response to the stimulation with L-alanine was the most remarkably affected in the liposomal treatment. Therefore, the L-alanine-binding protein was focused upon to confirm the reasonableness of the QCM measurement and the affinity gelchromatography. The D14DPC-containing proteoliposome always showed significant binding to both the L-alanine affinity gel and the L-alanine-conjugated QCM. The results revealed that membrane proteins can be directly and effectively released, even from intact animal tissue epithelium, using the artificial boundary lipid-containing liposome.
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Affiliation(s)
- M Nakamura
- Kao Institute for Fundamental Research, Kao Corporation, Tochigi, Japan
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7
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Kogure K, Nakamura C, Okuda O, Hayashi K, Ueno M. Effect of dicetylphosphate or stearic acid on spontaneous transfer of protein from influenza virus-infected cells to dimyristoylphosphatidylcholine liposomes. BIOCHIMICA ET BIOPHYSICA ACTA 1997; 1329:174-82. [PMID: 9370255 DOI: 10.1016/s0005-2736(97)00108-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Membrane proteins, such as viral spike, were transferred spontaneously from influenza virus-infected cells to various liposomes. The protein transfer was enhanced by the presence of negative charged component dicetylphosphate (DCP) or stearic acid (SA) in dimyristoylphosphatidylcholine (DMPC) liposomes. The lowering of membrane fluidity did not relate to the effect of DCP or SA on protein transfer in this study. We considered that the alteration of membrane properties, such as construction of the surface or stability of transferred protein in liposomes, due to the specific structure of DCP or SA is responsible for the enhancement of spontaneous protein transfer by the presence of the amphiphilic components.
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Affiliation(s)
- K Kogure
- Faculty of Pharmaceutical Sciences, Toyama Medical and Pharmaceutical University, Japan
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Suzuki K, Okumura Y, Sato T, Yasuda T, Oki A, Oki M, Sunamoto J. Direct extraction of A and B blood group antigens from human red cells by liposomes. Transfusion 1996; 36:966-8. [PMID: 8937405 DOI: 10.1046/j.1537-2995.1996.36111297091739.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Some of the major blood group antigens are on lipids and proteins of the red cell membrane. Incubation of intact red cells with liposomes containing specially designed artificial lipids has been shown to result in the extraction of membrane proteins by the liposomes. The extraction of blood group structures and the retention of their antigenicity have not been reported. STUDY DESIGN AND METHODS After the incubation of red cells with liposomes, the extraction of the antigens from human red cells by liposomes was examined by evaluation of the agglutination of the liposomes by respective antisera. RESULTS Agglutination specific to the A and B blood group antigens was seen, which indicated that the antigenicity of the blood group antigens was retained even after the extraction by the liposomes. The presence of an artificial boundary lipid, 1,2-dimyristamido-1,2-deoxyphosphatidylcholine, in the liposome was crucial to the efficient extraction of the A and B antigens. On the other hand, the extraction of D, M, N, and P1 was not always detectable by agglutination. CONCLUSION The A and B blood group antigens were directly extracted from red cells by liposomes without loss of antigenicity.
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Affiliation(s)
- K Suzuki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Japan
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Okumura Y, Ishitobi M, Sobel M, Akiyoshi K, Sunamoto J. Transfer of membrane proteins from human platelets to liposomal fraction by interaction with liposomes containing an artificial boundary lipid. BIOCHIMICA ET BIOPHYSICA ACTA 1994; 1194:335-40. [PMID: 7918546 DOI: 10.1016/0005-2736(94)90316-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The direct transfer of membrane proteins from human platelets to the liposomal fraction was examined, particularly in relation to platelet activation during the process. The incorporation of an artificial boundary lipid, 1,2-dimyristoylamido-1,2-deoxyphosphatidylcholine (DDPC), in the interacting liposome considerably enhanced the efficiency of the protein transfer. The transfer proceeded with neither significant activation nor lysis of the platelet, and the activation of the platelet with thrombin did not affect the amount of the transferred proteins. A wide range of platelet membrane proteins was transferred, and they were almost comparable to those in a sample prepared by glycerol lysis/centrifugation. In addition, they included the major surface glycoproteins GPIIb and GPIIIa without noticeable contamination of soluble cytosol proteins. The protein transfer method is a one-pot process and clearly more convenient than the conventional 'extract and reconstitute' approach. These results strongly support the use of the transfer process, especially with DDPC, as an alternative to the conventional detergent-solubilization or the solvent-extraction methods for preparation of samples of platelet membrane proteins.
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Affiliation(s)
- Y Okumura
- Division of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Japan
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Ali S, Smaby JM, Brown RE. Acyl structure regulates galactosylceramide's interfacial interactions. Biochemistry 1993; 32:11696-703. [PMID: 8218238 PMCID: PMC4003564 DOI: 10.1021/bi00094a028] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Galactosylceramides (GalCer) with homogeneous acyl chains containing zero, one, or two cis double bonds have been synthesized and characterized at an argon-aqueous buffer interface using a Langmuir film balance. Both surface pressure and surface potential were measured as a function of molecular area at 24 degrees C. N-Lignoceroylgalactosylsphingosine (N-24:0-GalSph), N-stearoylgalactosylsphingosine (N-18:0-GalSph), and N-palmitoylgalactosylsphingosine (N-16:0-GalSph) form condensed films that are similar to that of bovine brain GalCer, which contains long saturated and mono-unsaturated acyl chains, almost half being hydroxylated. In contrast, a bovine brain GalCer subfraction (NFA-GalCer) that is devoid of the hydroxylated acyl chains displays an apparent two-dimensional phase transition near 9.0 mN/m at 54 A2/molecule. To determine the role of acyl unsaturation in regulating NFA-GalCer's surface behavior, GalCer derivatives containing different mono-unsaturated acyl residues were investigated. N-Nervonoyl-galactosylsphingosine (N-24:1 delta 15-GalSph) and N-docosenoylgalactosylsphingosine (N-22:1 delta 13-GalSph) show liquid-expanded to -condensed phase transitions in their force-area isotherms at 10 and 35 mN/m, respectively. Introduction of acyl chains that are short and saturated [e.g., N-decanoylgalactosylsphingosine (N-10:0-GalSph)] or that are long but contain two cis double bonds [e.g., N-linoleoylgalactosylsphingosine (N-18:2 delta 9,12-GalSph)] causes GalCer to display only liquid-expanded behavior at 24 degrees C. The surface potentials (delta V) of the condensed GalCer derivatives with long saturated acyl residues were quite similar and were over 100 mV higher than that of bovine brain GalCer.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- S Ali
- Hormel Institute, University of Minnesota, Austin 55912
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12
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Goto M, Sunamoto J. Effect of Artificial Boundary Lipid on the Membrane Dynamics of Human Glycophorin-Containing Liposome. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1992. [DOI: 10.1246/bcsj.65.3331] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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13
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Direct transfer of tumor surface antigenic protein (TSAP) from tumor cell to liposome for making liposomal vaccine. J Control Release 1992. [DOI: 10.1016/0168-3659(92)90160-s] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Affiliation(s)
- T Sato
- Laboratory of Materials Science of Polymers, Department of Polymer Chemistry, Kyoto University, Japan
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Kan CC, Bittman R, Hajdu J. Phospholipids containing nitrogen- and sulfur-linked chains: kinetics of cholesterol exchange between vesicles. BIOCHIMICA ET BIOPHYSICA ACTA 1991; 1066:95-101. [PMID: 2065074 DOI: 10.1016/0005-2736(91)90256-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We have examined the kinetics of [14C]cholesterol exchange between unilamellar vesicles formed from the following synthetic glycerophosphatidylcholines: (a) those having acyl (OC(O)R), acylamino (NHC(O)R), carbamoyl (NHC(O)OR), and acylthio (SC(O)R) chains at the sn-2 position, and (b) those having alkyl (OR) and thioalkyl (SR) chains at the sn-1 position. Replacement of the glycerol oxygen atom at the sn-2 position of PC with a NH group did not affect the rate of cholesterol exchange to a significant extent, suggesting that the amide group of sphingomyelin is not primarily responsible for the very slow rate of exchange of cholesterol observed from sphingomyelin vesicles. Replacement of the glycerol oxygen at the sn-2 position of phosphatidylcholine with a sulfur atom caused the rate of spontaneous cholesterol exchange to increase by a factor of 1.6. Substitution of an O-alkyl chain for the acyl chain at the sn-1 position of 2-acylthiophosphatidylcholine or substitution of a thioalkyl chain for the O-alkyl sn-1 chain of 1-alkyl-2-acylaminodeoxyphosphatidylcholine also did not result in a marked difference in cholesterol exchange rate. The data suggest that interactions other than intermolecular hydrogen bonding are involved in determining the rates of intermembrane cholesterol exchange. Significantly, these kinetic studies also lend support to the continued use in model membranes of synthetic sulfur- and nitrogen-substituted phosphatidylcholines, which have been employed to study properties of lipolytic enzymes, since synthetic acylamino- and acylthio-phospholipids form vesicles that give cholesterol exchange rates that closely resemble those found in vesicles prepared with diester-phosphatidylcholines.
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Affiliation(s)
- C C Kan
- Department of Chemistry and Biochemistry, Queens College of The City University of New York, Flushing 11367
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Sunamoto J, Goto M, Akiyoshi K. Structural Stability of Lecithin Liposomes as Improved by Adding an Artificial Boundary Lipid. CHEM LETT 1990. [DOI: 10.1246/cl.1990.2141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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