Journal
STEROIDS
Volume 78, Issue 9, Pages 832-844Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.steroids.2013.05.012
Keywords
Cholic acid derivatives; Transdermal penetration enhancers; Intestinal absorption promoters
Funding
- Czech Science Foundation (the Grant Agency of the Czech Republic) [P304/11/2246, 304/10/1951, P503/11/0616]
- Centre of the Region Hana for Biotechnological and Agricultural Research [ED0007/01/01]
- Ministry of Education of the Czech Republic [MSM6046137305]
- Sanofi-Aventis Pharma Slovakia
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A series of final six propanoyloxy derivatives of 5 beta-cholan-24-oic acid (tridecafluoroctylsulfanyl- and tridecafluoroctylsulfinylethoxycarbonylpropanoyloxy derivatives) as potential drug absorption promoters (skin penetration enhancers, intestinal absorption promoters) was generated by multistep synthesis. Structure confirmation of all generated compounds was accomplished by H-1 NMR, C-13 NMR, IR and MS spectroscopy methods. All the prepared compounds were analyzed using RP-TLC, and their lipophilicity (R-M) was determined. The hydrophobicity (log P), solubility (log S), polar surface area (PSA) and molar volume (MV) of the studied compounds were also calculated. All the target compounds were tested for their in vitro transdermal penetration effect and as potential intestinal absorption enhancers. The cytotoxicity of all the evaluated compounds was evaluated against normal human skin fibroblast cells. Their anti-proliferative activity was also assessed against human cancer cell lines: T-lymphoblastic leukaemia cell line and breast adenocarcinoma cell line. One compound showed high selective cytotoxicity against human skin fibroblast cells and another compound possessed high cytotoxicity against breast adenocarcinoma cell line and skin fibroblast cells. Only one compound expressed anti-proliferative effect on leukaemia and breast adenocarcinoma cells without affecting the growth of normal cells, which should be promising in potential development of new drugs. Most of the target compounds showed minimal anti-proliferative activity (IC50 > 37 mu M), indicating they would have moderate cytotoxicity when administered as chemical absorption modifiers. The relationships between the lipophilicity/polarity and the chemical structure of the studied compounds as well as the relationships between their chemical structure and penetration enhancement effect are discussed in this article. (C) 2013 Elsevier Inc. All rights reserved.
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