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Vashchenko O, Kasian N, Budianska L, Brodskii R, Bespalova I, Lisetski L. Adsorption of ions on model phospholipid membranes. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.11.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kneidl B, Peller M, Winter G, Lindner LH, Hossann M. Thermosensitive liposomal drug delivery systems: state of the art review. Int J Nanomedicine 2014; 9:4387-98. [PMID: 25258529 PMCID: PMC4172103 DOI: 10.2147/ijn.s49297] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Thermosensitive liposomes are a promising tool for external targeting of drugs to solid tumors when used in combination with local hyperthermia or high intensity focused ultrasound. In vivo results have demonstrated strong evidence that external targeting is superior over passive targeting achieved by highly stable long-circulating drug formulations like PEGylated liposomal doxorubicin. Up to March 2014, the Web of Science listed 371 original papers in this field, with 45 in 2013 alone. Several formulations have been developed since 1978, with lysolipid-containing, low temperature-sensitive liposomes currently under clinical investigation. This review summarizes the historical development and effects of particular phospholipids and surfactants on the biophysical properties and in vivo efficacy of thermosensitive liposome formulations. Further, treatment strategies for solid tumors are discussed. Here we focus on temperature-triggered intravascular and interstitial drug release. Drug delivery guided by magnetic resonance imaging further adds the possibility of performing online monitoring of a heating focus to calculate locally released drug concentrations and to externally control drug release by steering the heating volume and power. The combination of external targeting with thermosensitive liposomes and magnetic resonance-guided drug delivery will be the unique characteristic of this nanotechnology approach in medicine.
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Affiliation(s)
- Barbara Kneidl
- Department of Internal Medicine III, University Hospital Munich, Germany ; Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Munich, Germany
| | - Michael Peller
- Institute for Clinical Radiology, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany
| | - Gerhard Winter
- Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Munich, Germany
| | - Lars H Lindner
- Department of Internal Medicine III, University Hospital Munich, Germany
| | - Martin Hossann
- Department of Internal Medicine III, University Hospital Munich, Germany
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3
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Lee H, Kim HR, Park JC. Dynamics and stability of lipid bilayers modulated by thermosensitive polypeptides, cholesterols, and PEGylated lipids. Phys Chem Chem Phys 2014; 16:3763-70. [DOI: 10.1039/c3cp52639a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Lee H, Kim HR, Larson RG, Park JC. Effects of the Size, Shape, and Structural Transition of Thermosensitive Polypeptides on the Stability of Lipid Bilayers and Liposomes. Macromolecules 2012. [DOI: 10.1021/ma301327j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Hwankyu Lee
- Department of Chemical Engineering, Dankook University, Yongin, 448-701, South Korea
| | - Hyun Ryoung Kim
- Bio Research Center, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd., Yongin, 446-712, South
Korea
| | - Ronald G. Larson
- Departments of Chemical
Engineering, Biomedical Engineering, Mechanical Engineering, and Macromolecular
Science and Engineering Program, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Jae Chan Park
- Bio Research Center, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd., Yongin, 446-712, South
Korea
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Carpaneto A, Magrassi R, Zocchi E, Cerrano C, Usai C. Patch-clamp recordings in isolated sponge cells (Axinella polypoides). JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS 2003; 55:179-89. [PMID: 12628699 DOI: 10.1016/s0165-022x(02)00184-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Sponges are the most ancient known metazoans. Their cells are specialised but not organised into tissues or organs. Recordings of action potential-like propagating electrical impulses suggested that electrical signalling may occur between sponge cells, but the characterization of ionic channels in these cells is still at the beginning. Actually, sponge cell surfaces are covered by a complex glycocalyx and long-chain fatty acids are present in the lipid core of their membranes. In these experimental conditions, a low percentage of tight seals (3%) was obtained applying the patch-clamp technique to cells isolated from the Mediterranean Demospongia Axinella polypoides. This paper shows in detail how difficulties can be overcome making use of trivalent cations in the extracellular solution and how electrophysiological measurements can be performed on sponge cell membranes. A potassium selective conductance is shown as an example. We suggest that the presented methodology could also be applied to other cell types.
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Affiliation(s)
- Armando Carpaneto
- Istituto di Biofisica C.N.R., Sezione di Genova, Consiglio Nazionale delle Ricerche, Via De Marini, 6, 16149 Genova, Italy
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6
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Boundary potentials of bilayer lipid membranes: methods and interpretations. MEMBRANE SCIENCE AND TECHNOLOGY 2003. [DOI: 10.1016/s0927-5193(03)80027-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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7
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Tanaka T, Tamba Y, Masum SM, Yamashita Y, Yamazaki M. La(3+) and Gd(3+) induce shape change of giant unilamellar vesicles of phosphatidylcholine. BIOCHIMICA ET BIOPHYSICA ACTA 2002; 1564:173-82. [PMID: 12101010 DOI: 10.1016/s0005-2736(02)00444-3] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Lanthanides such as La(3+) and Gd(3+) are well known to have large effects on the function of membrane proteins such as mechanosensitive ionic channels and voltage-gated sodium channels, and also on the structure of phospholipid membranes. In this report, we have investigated effects of La(3+) and Gd(3+) on the shape of giant unilamellar vesicle (GUV) of dioleoylphosphatidylcholine (DOPC-GUV) and GUV of DOPC/cholesterol by the phase-contrast microscopy. The addition of 10-100 microM La(3+) (or Gd(3+)) through a 10-microm diameter micropipette near the DOPC-GUV (or DOPC/cholesterol-GUV) triggered several kinds of shape changes. We have found that a very low concentration (10 microM) of La(3+) (or Gd(3+)) induced a shape change of GUV such as the discocyte via stomatocyte to inside budded shape transformation, the two-spheres connected by a neck to prolate transformation, and the pearl on a string to cylinder (or tube) transformation. To understand the effect of these lanthanides on the shape of the GUV, we have also investigated phase transitions of 30 microM dipalmitoylphosphatidylcholine-multilamellar vesicle (DPPC-MLV) by the ultra-sensitive differential scanning calorimetry (DSC). The chain-melting phase transition temperature and the L(beta') to P(beta') phase transition temperature of DPPC-MLV increased with an increase in La(3+) concentration. This result indicates that the lateral compression pressure of the membrane increases with an increase in La(3+) concentration. Thereby, the interaction of La(3+) (or Gd(3+)) on the external monolayer membrane of the GUV induces a decrease in its area (A(ex)), whereas the area of the internal monolayer membrane (A(in)) keeps constant. Therefore, the shape changes of the GUV induced by these lanthanides can be explained reasonably by the decrease in the area difference between two monolayers (DeltaA=A(ex)-A(in)).
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Affiliation(s)
- Tomoki Tanaka
- Materials Science, Graduate School of Science and Engineering, Shizuoka University, 422-8529 Japan
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Needham D, Dewhirst MW. The development and testing of a new temperature-sensitive drug delivery system for the treatment of solid tumors. Adv Drug Deliv Rev 2001; 53:285-305. [PMID: 11744173 DOI: 10.1016/s0169-409x(01)00233-2] [Citation(s) in RCA: 372] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Our laboratories have been working together in close collaboration for over 10 years concerning the design and performance of lipid-based drug delivery systems. Over the past 3 years we have conceived of, developed, and tested pre-clinically, a new liposome-based temperature-sensitive drug delivery system for the treatment of solid tumors. This work is reported in a series of four publications: "J. Liposome Res. 9 (1999) 491; Cancer Res. Adv. Brief 60(5) (2000) 1197; Cancer Res. 6(9) (2000) 748; and Cancer Res. 60 (2000) 6950". Following a brief introduction concerning the motivations behind the work, this article will review these studies, including some of our earlier work that led to these ideas, and will present the rational design of the new liposome formulation from a materials engineering perspective.
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Affiliation(s)
- D Needham
- Department of Mechanical Engineering and Materials Science, Box 90300, Duke University, B219 Levine Science Research Center, Science Drive, Durham, NC 27708-0300, USA.
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9
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Lipid Model Membranes and Biomembranes. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s1573-4374(99)80006-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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10
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Hwang F, Zhao DQ, Chen JW, Chen XH, Ni JZ. Effect of lanthanum ions on the lipid polymorphism of phosphatidylethanolamines. Chem Phys Lipids 1996. [DOI: 10.1016/0009-3084(96)02561-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Li XM, Zhang YF, Ni JZ, Chen JW, Hwang F. Effect of lanthanide ions on the phase behavior of dipalmitoylphosphatidylcholine multilamellar liposomes. J Inorg Biochem 1994; 53:139-49. [PMID: 8133251 DOI: 10.1016/0162-0134(94)85028-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The effect of lanthanide ions (Ln3+) and their coordination compounds of diethylenetriamine pentaacetic acid (DTPA) on the phase behavior of dipalmitoylphosphatidylcholine (DPPC) multi-lamellar liposomes has been studied by differential scanning calorimetry (DSC), Raman spectroscopy, and freeze-fracture electron microscopic techniques. The displacement of Ca2+ binding on DPPC liposomes by lanthanide ions was also studied. The results show that the binding degree of four kinds of chloride salts with DPPC liposomes is: YbCl3 > GdCl3 > LaCl3 > CaCl2. Lanthanide ions increase the phase transition temperature of DPPC liposomes and decrease the membrane fluidity. Freeze-fracture electron microscopic results show that La3+ enhances the order of DPPC membrane. The effect of coordination compounds of lanthanides with DTPA on the phase behavior of DPPC liposomes is smaller than that of their chlorides. La3+, Gd3+, and Yb3+, can displace Ca2+ binding on DPPC liposomes, but there coordination compounds of DTPA can hardly displace Ca2+. Raman spectroscopic results show that a very slight effect in lateral packing order of DPPC liposomes was observed at various concentrations of lanthanides.
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Affiliation(s)
- X M Li
- Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Academia Sinica, P. R. China
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12
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Massari S, Folena E, Ambrosin V, Schiavo G, Colonna R. pH-dependent lipid packing, membrane permeability and fusion in phosphatidylcholine vesicles. BIOCHIMICA ET BIOPHYSICA ACTA 1991; 1067:131-8. [PMID: 1878366 DOI: 10.1016/0005-2736(91)90034-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We have studied the rate of membrane fusion, the lipid dynamics and order and the membrane permeability of phosphatidylcholine vesicles as a function of pH. Acidification induced very different effects depending on the state of the bilayer. In liquid-crystalline bilayers, acidification decreased the rate of membrane fusion, the acyl chain motion and disorder and the rate of K+ release, whereas in solid bilayers acidification increased the rate of membrane fusion, the lipid acyl chain disorder and the rate of K+ release. These pH-dependent modifications are interpreted in terms of conformational and/or packing changes of the phosphatidylcholine head group in the membrane. In solid bilayers, these changes are not easily accommodated by the rigid structure, and the resulting stress leads to an unstable bilayer.
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Affiliation(s)
- S Massari
- C.N.R. Unit for the Study of Physiology of Mitochondria, University of Padova, Italy
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13
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Smejtek P, Barstad AW, Wang S. Pentachlorophenol-induced change of zeta-potential and gel-to-fluid transition temperature in model lecithin membranes. Chem Biol Interact 1989; 71:37-61. [PMID: 2776233 DOI: 10.1016/0009-2797(89)90089-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We have determined zeta-potentials for dimyristoylphosphatidylcholine (DMPC) and dipalmitoylphosphatidylcholine (DPPC) membranes by measuring the electrophoretic mobility of multilayered vesicles and the temperatures of the gel-to-ripple-to-fluid phase transitions of sonicated vesicles by a photometric method. Some conclusions are: (1) The zeta-potentials of DMPC and DPPC vesicles become negative due to adsorption of ionized pentachlorophenol (PCP), (2) their magnitude changes, step-like, on gel-to-fluid transition and (3) the temperature of the step-like change in zeta-potential decreases with an increase in PCP concentration. (4) PCP exhibits a large effect on membrane structure: It induces an isothermal phase change from the ordered to disordered state, which is enhanced by monovalent salt in the aqueous phase. (5) Both ionized and unionized PCP decrease the melting phase transition temperature and abolish the pretransition, (6) the unionized species increases the melting transition width and (7) the ionized species is more potent in abolishing the pretransition. (8) The shorter chain lipid (DMPC) is more sensitive to the presence of PCP; the maximum decrease in delta Tt is 13 K (DMPC) and 7 K (DPPC) in the presence of ionized PCP. We have shown experimentally, by comparing the delta Tt from photometric studies with the density of adsorbed PCP derived from zeta-potential isotherms, that (9) the shift of the melting phase transition temperature increases linearly with the density of adsorbed PCP. (10) In contrast to membranes made of negatively charged lipids, the transition temperature of DMPC and DPPC membranes in the presence of PCP further decreases in the presence of monovalent salt. The salt effect is due to screening of the membrane surface leading to enhanced adsorption of ionized PCP and a depression in transition temperature. (11) It is shown that both the adsorption and the changes of gel-to-fluid phase transition temperature can be described in terms of the Langmuir-Stern-Grahame model and (12) proposed that future studies of membrane toxicity of PCP should be focused on its pH dependence.
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Affiliation(s)
- P Smejtek
- Environmental Sciences and Resources Doctoral Program, Portland State University, OR 97207-0751
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Conti J, Halladay HN, Petersheim M. An ionotropic phase transition in phosphatidylcholine: cation and anion cooperativity. BIOCHIMICA ET BIOPHYSICA ACTA 1987; 902:53-64. [PMID: 3607057 DOI: 10.1016/0005-2736(87)90135-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Evidence is presented for cooperative interaction between cations and anions specifically bound to dimyristoylphosphatidylcholine (DMPC). The cooperativity is with regard to an ion-induced (ionotropic) phase transition for the lipid and is signalled by a change in the luminescence from bound Tb3+. The intrinsic binding of Tb3+ to DMPC was determined from equilibrium dialysis experiments, using conventional methods to correct for electrostatic contributions. Preliminary results demonstrate great potential for infrared spectroscopy as a means to relate these Tb3+ luminescence studies to experiments involving less tractable cations. This work provides insight into the role of bound ions in modifying lateral phase behavior in phospholipid membranes.
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Jones M, Hammond K, Reboiras M, Acerete C, Jackson S, Nogueira M, Nicholas A. The interaction of lanthanum ions with dipalmitoylphosphatidylcholine—phosphatidylinositol vesicles. ACTA ACUST UNITED AC 1986. [DOI: 10.1016/0166-6622(86)80195-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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The electrophoretic properties of dipalmitoylphosphatidylcholine—phosphatidylinositol vesicles in the presence of lanthanum ions. ACTA ACUST UNITED AC 1985. [DOI: 10.1016/0166-6622(85)80074-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Chowdhry BZ, Lipka G, Dalziel AW, Sturtevant JM. Multicomponent phase transitions of diacylphosphatidylethanolamine dispersions. Biophys J 1984; 45:901-4. [PMID: 6733241 PMCID: PMC1434979 DOI: 10.1016/s0006-3495(84)84236-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The phase transition properties of aqueous suspensions of a series of nonhydrated (not heated above room temperature) and hydrated 1,2 diacylphosphatidylethanolamines (PE's) have been examined by high sensitivity differential scanning calorimetry at scan rates of 0.02-1.0 K min-1. At all scan rates nonhydrated PE's show a single asymmetric transition curve of excess heat capacity as a function of temperature. Multilamellar dispersions of hydrated PE's, however, exhibit transitions with fine structure, which can be fitted as the sum of three two-state component transitions, at scan rates of 0.02-0.1 K min-1, but give only a single asymmetric transition at 1.0 K min-1. At all scan rates the transition(s) of hydrated samples occur at lower temperatures than those of nonhydrated samples. One of the component transitions of hydrated PE's may be analogous to the pretransition that occurs in 1,2 diacylphosphatidylcholines.
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