Mechanistic Aspects of Membrane Destruction of Dipalmitoylphosphatidylcholine Liposomes by Alkyltrimethylammonium Bromides
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- KOIDE Misao
- Pharmaceutical Research Laboratories of Lion Corporation
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- UKAWA Jinta
- Department of Bioapplied Chemistry, Faculty of Engineering, Osaka City University
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- TOYOSHIMA Toshinobu
- Department of Bioapplied Chemistry, Faculty of Engineering, Osaka City University
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- TAGAKI Waichiro
- Department of Bioapplied Chemistry, Faculty of Engineering, Osaka City University
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- TAMAGAKI Seizo
- Department of Bioapplied Chemistry, Faculty of Engineering, Osaka City University
Bibliographic Information
- Other Title
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- アルキルトリメチルアンモニウム臭素化物によるリポソーム膜崩壊機構
- アルキルトリメチルアンモニウム シュウソカブツ ニヨル リポソーム マク ホウ
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Abstract
The membrane permeability of carboxyfluorescein (CF) trapped dipalmitoylphosphatidylcholine liposomes was facilitated by the presence of long-chain alkyltrimethylammonium bromides (ATAB) and characteristic dependency of this parameter on concentration and alkyl-chain length was noted. Octyl- and decyltri-methylammonium bromides had little or no effect for CF release, while this release was augmented by dodecyl- and tetradecyltrimethylammonium in proportion to concentrations. For longer chain cetyl- and stearyltrimethylammonium bromides exhibiting an abnormal activity-concentration relationship, CF release was remarkably stimulated at significantly low concentrations, while virtually not at all at high concentrations. Based on the data from light-scattering study and differential scanning calorimetry, a CF-releasing mechanism is proposed. The preparation and destruction of liposomes containing anti-inflammatory drugs glycyrrhizinic acid and methylglycyrrhizinate as membrane components were also examined.
Journal
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- Journal of Japan Oil Chemists' Society
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Journal of Japan Oil Chemists' Society 46 (8), 879-890,937, 1997
Japan Oil Chemists' Society
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Keywords
Details 詳細情報について
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- CRID
- 1390282679068108800
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- NII Article ID
- 10002273074
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- NII Book ID
- AN10512582
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- ISSN
- 18841996
- 13418327
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- NDL BIB ID
- 4285213
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed