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Malaysian Journal of Medical Sciences
School of Medical Sciences, Universiti Sains Malaysia
ISSN: 1394-195X
Vol. 21, No. s1, 2014, pp. 6-11
Bioline Code: mj14088
Full paper language: English
Document type: Research Article
Document available free of charge

Malaysian Journal of Medical Sciences, Vol. 21, No. s1, 2014, pp. 6-11

 en Evaluation of the Cytotoxicity of Levodopa and its Complex with Hydroxypropyl-β- Cyclodextrin (HP-β-CD) to an Astrocyte Cell Line
SOFIAN, Zarif Mohamed; SHAFEE, Shazrin Shazira; ABDULLAH, Jafri Malin; OSMAN, Hasnah & RAZAK, Shariza Abdul

Abstract

A simple, reliable a 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxy-phenyl)-2-(4-sulfophenyl)-2H-tetrazolium, (MTS) assay was conducted to evaluate the potential cytotoxic effects of levodopa, a “gold standard therapy” for Parkinsonism, and its complex with Hydroxypropyl-β-Cyclodextrin (HP-β-CD) on an astrocyte cell line. The cells were incubated in a range of concentrations from 4.69 to 300 μg/mL levodopa, HP-β-CD or the complex for up to 72 hours. At every 24-hour interval, the optical density (OD), which reflects the number of viable cells, was recorded. In general, linear dose-dependent cytotoxicity profiles were observed for the cells subjected to levodopa or the complex, whereas a slightly triphasic response was observed for the cells exposed to HP-β-CD. A significant difference (P < 0.05) in cytotoxicity was detected between the HP-β-CD-treated group and the levodopa-treated group. In particular, we observed that the cells treated with the complex, even at the highest concentrations (> 200 μg/mL), exhibited improved tolerability in a time-dependent manner, which may indicate the potential ability of HP-β-CD to mask the toxic effects of levodopa via complexation.

Keywords
cyclodextrin; levodopa; astrocytes; cytotoxicity

 
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Alternative site location: http://www.medic.usm.my/publication/mjms/

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