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The effect of β-sitosterol on the properties of cholesterol/phosphatidylcholine/ganglioside monolayers : the impact of monolayer fluidity
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The effect of β-sitosterol on the properties of cholesterol/phosphatidylcholine/ganglioside monolayers : the impact of monolayer fluidity
Bibliographic description
| title: | The effect of β-sitosterol on the properties of cholesterol/phosphatidylcholine/ganglioside monolayers : the impact of monolayer fluidity |
| author: | Hąc-Wydro Katarzyna 
|
| journal title: | Colloids and Surfaces. B, Biointerfaces |
| volume: | 110 |
| date of publication : | 2013 |
| pages: | 113-119 |
| ISSN: |
0927-7765 |
| eISSN: |
1873-4367 |
| DOI: | |
| language: | English |
| journal language: | English |
| abstract in English: | In this paper the influence of one of phytosterols, namely β-sitosterol on cholesterol (Chol)/phosphatidylcholine (PC)/ganglioside (GM3) monolayers was examined to find the correlation between the properties of model system and the effect of phytocompound. The studied monolayers differed in condensation and fluidity, which were modified by the structure of phosphatidylcholine. It was found that the incorporation of β-sitosterol into cholesterol/phosphatidylcholine/ganglioside films changes their morphology, condensation and interactions between the lipids. The substitution of cholesterol more strongly decreased the condensation and stability of the film containing PC molecules having monounsaturated chains than more densely packed monolayer composed of saturated phosphatidylcholine. However, thorough analysis of data obtained so far suggests that the magnitude of β-sitosterol effect is determined by the composition of the system rather than its fluidity itself. Moreover, the results collected herein correlate well with the findings that phytosterol more strongly inhibits the growth of cancer cells, which at a given proportion of cholesterol to phospholipids in membranes, have more unsaturated fatty acids within phospholipids molecules. |
| keywords in English: | monolayers, tumor membranes, phytosterols, condensation |
| departmental parameterization: | 30 |
| affiliation: | Wydział Chemii : Zakład Chemii Środowiska |
| type: | journal article |
| subtype: | academic paper |
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Projekt „Repozytorium otwartego dostępu do dorobku naukowego i dydaktycznego UJ” współfinansowany w ramach poddziałania 2.3.1 „Cyfrowe udostępnianie zasobów nauki” Programu Operacyjnego Polska Cyfrowa z Europejskiego Funduszu Rozwoju Regionalnego i budżetu państwa na podstawie umowy o dofinansowanie nr POPC.02.03.01-00-0030/17-00
