alexa Regression of hepatocarcinoma cells using RNA aptamer specific to alpha-fetoprotein.
Pharmaceutical Sciences

Pharmaceutical Sciences

Journal of Clinical & Experimental Pharmacology

Author(s): Lee YJ, Lee SW

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Abstract Alpha-fetoprotein (AFP) is a cancer-associated fetal protein and has long been utilized as a serum fetal defect/tumor marker to monitor distress/disease progression. In addition, AFP is closely associated with the proliferation of hepatocellular carcinoma. Thus, direct targeting of AFP has been recommended for a therapeutic strategy against hepatocellular carcinoma. In this study, we developed and characterized an RNA aptamer that specifically bound to the alpha-fetoprotein using SELEX technology. The aptamer interacted with the AFP with a K(D) of ∼33 nM. Importantly, the identified aptamer specifically and efficiently inhibited the AFP-mediated proliferation of hepatocarcinoma cells in a dose dependent manner. Moreover, the aptamer efficiently down-regulated AFP-induced expression of oncogenes in the cells. These results indicate that an AFP-specific RNA aptamer could be a useful therapeutic and diagnostic agent against AFP-related hepatocellular carcinoma. Copyright © 2011 Elsevier Inc. All rights reserved. This article was published in Biochem Biophys Res Commun and referenced in Journal of Clinical & Experimental Pharmacology

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