Targeted delivery of daunorubicin to T-cell acute lymphoblastic leukemia by aptamer.

Abstract

Application of daunorubicin in treatment of leukemia has been limited for its side effects like cardiotoxicity. Specific delivery of chemotherapy drugs is an important factor in decreasing their side effects. In this study, sgc8, an aptamer for protein tyrosine kinase-7 (PTK7), was used for specific delivery of daunorubicin to Molt-4 cells (PTK7(+)). Flow cytometric experiments showed that aptamer-daunorubicin complex was internalized effectively to Molt-4 cells (PTK7(+)), but not to U266 cells (PTK7(-)). This fact was confirmed by less cytotoxicity of aptamer-drug complex in U266 cells in compare to daunorubicin alone. No significant change in viability between daunorubicin and aptamer-daunorubicin complex treated Molt4 cells was observed. In conclusion, sgc8-daunorubicin complex is introduced as a simple and efficient system for targeted delivery of drug to acute lymphoblastic leukemia T cells.

• Authors: Seyed Mohammad Taghdisi, Khalil Abnous, Fatemeh Mosaffa, Javad Behravan
• Journal: Journal of drug targeting (J Drug Target) Vol. 18 Issue 4 Pg. 277-81 (May 2010) ISSN: 1029-2330 [Electronic] England
• PMID: 19943768 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Antineoplastic Agents
• Aptamers, Nucleotide
• Daunorubicin

Topics

• Antineoplastic Agents (administration & dosage)
• Aptamers, Nucleotide (chemistry)
• Base Sequence
• Cell Line, Tumor
• Daunorubicin (administration & dosage)
• Drug Delivery Systems
• Flow Cytometry
• Humans
• Nucleic Acid Conformation
• Precursor T-Cell Lymphoblastic Leukemia-Lymphoma (pathology)
• Spectrometry, Fluorescence