Comparison of cytotoxicity in vitro and irritation in vivo for aqueous and oily solutions of surfactants |
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| Authors: | Anna Czajkowska-Kośnik Eliza Wolska Juliusz Chorążewicz Małgorzata Sznitowska |
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| Affiliation: | 1. Department of Pharmaceutical Technology, Medical University of Bialystok, Poland,;2. Department of Pharmaceutical Technology, Medical University of Gdansk, Poland, and;3. Department of Ophthalmology, Medical University of Gdansk, Poland |
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| Abstract: | The in vivo model on rabbit eyes and the in vitro cytotoxicity on fibroblasts were used to compare irritation effect of aqueous and oily (Miglyol 812) solutions of surfactants. Tween 20, Tween 80 and Cremophor EL were tested in different concentrations (0.1, 1 or 5%) and the in vitro test demonstrated that surfactants in oil are less cytotoxic than in aqueous solutions. In the in vivo study, the aqueous solutions of surfactants were characterized as non-irritant while small changes in conjunctiva were observed after application the oily solutions of surfactants and the preparations were classified as slightly irritant, however this effect was similar when Miglyol was applied alone. In conclusion, it is reported that the MTT assay does not correlate well with the Draize scores. |
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| Keywords: | Cytotoxicity Draize irritation test Miglyol 812 non-ionic surfactants self-emulsifying oil |
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