Bilayer-Forming Synthetic Lipids: Drugs or Carriers?

Author: Carmona-Ribeiro, Ana M.

Source: Current Medicinal Chemistry, Volume 10, Number 22, November 2003 , pp. 2425-2446(22)

Publisher: Bentham Science Publishers

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Abstract:

Since their introduction as bilayer-forming synthetic compounds in the eighties, dioctadecyldimethylammonium (DODA) and dihexadecylphosphate (DHP) salts have found many uses in strategic, applied areas. In particular, DODA chloride or bromide vesicles interacted with negatively charged prokaryotic or eukaryotic cells, yielding adsorption isotherms of high affinity for the cell surface, causing cell adhesion and flocculation, changing the cell surface charge from negative to positive, and causing loss of cell viability over DODA concentration ranges that depended on the cell type being tested. This work reviews data on DODA effects on cell viability (bacteria, fungus and cultured mammalian cells) to propose DODA salts as effective anti-microbial agents that exhibit differential cytotoxicity in vitro and, therefore, deserve to be investigated as potential drugs. The full utility of these inexpensive synthetic bilayers and bilayer fragments able to act as drugs themselves and, simultaneously, as drug, gene or vaccine carriers remains hitherto unexplored.

Keywords: bilayer fragments; dioctadecyldimethylammonium chloride or bromide; drug solubilization; hydrophobic drugs; sodium dihexadecylphosphate; stabilization and activity; synthetic bilayers; vesicles

Document Type: Review Article

DOI: http://dx.doi.org/10.2174/0929867033456611

Affiliations: Departamento de Bioquimica, Instituto de Quimica, Universidade de Sao Paulo, CP 26077, 05513-970 Sao Paulo SP, Brazil.

Publication date: November 1, 2003

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  • Current Medicinal Chemistry covers all the latest and outstanding developments in medicinal chemistry and rational drug design. Each issue contains a series of timely in-depth reviews written by leaders in the field covering a range of the current topics in medicinal chemistry. Current Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments.
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