Beta-lapachone micellar nanotherapeutics for non-small cell lung cancer therapy.

Abstract

Lung cancer is the leading cause of cancer-related deaths with current chemotherapies lacking adequate specificity and efficacy. Beta-lapachone (beta-lap) is a novel anticancer drug that is bioactivated by NAD(P)H:quinone oxidoreductase 1, an enzyme found specifically overexpressed in non-small cell lung cancer (NSCLC). Herein, we report a nanotherapeutic strategy that targets NSCLC tumors in two ways: (a) pharmacodynamically through the use of a bioactivatable agent, beta-lap, and (b) pharmacokinetically by using a biocompatible nanocarrier, polymeric micelles, to achieve drug stability, bioavailability, and targeted delivery. Beta-lap micelles produced by a film sonication technique were small ( approximately 30 nm), displayed core-shell architecture, and possessed favorable release kinetics. Pharmacokinetic analyses in mice bearing subcutaneous A549 lung tumors showed prolonged blood circulation (t(1/2), approximately 28 h) and increased accumulation in tumors. Antitumor efficacy analyses in mice bearing subcutaneous A549 lung tumors and orthotopic Lewis lung carcinoma models showed significant tumor growth delay and increased survival. In summary, we have established a clinically viable beta-lap nanomedicine platform with enhanced safety, pharmacokinetics, and antitumor efficacy for the specific treatment of NSCLC tumors.

• Authors: Elvin Blanco, Erik A Bey, Chalermchai Khemtong, Su-Geun Yang, Jagadeesh Setti-Guthi, Huabing Chen, Chase W Kessinger, Kevin A Carnevale, William G Bornmann, David A Boothman, Jinming Gao
• Journal: Cancer research (Cancer Res) Vol. 70 Issue 10 Pg. 3896-904 (May 15 2010) ISSN: 1538-7445 [Electronic] United States
• PMID: 20460521 (Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S.)
• Copyright: (c)2010 AACR.

Chemical References

• Antineoplastic Agents
• Drug Carriers
• Micelles
• Naphthoquinones
• beta-lapachone
• NAD(P)H Dehydrogenase (Quinone)
• NQO1 protein, human

Topics

• Animals
• Antineoplastic Agents (pharmacokinetics, pharmacology)
• Carcinoma, Non-Small-Cell Lung (drug therapy, pathology)
• Cell Line, Tumor
• Drug Carriers (chemistry)
• Female
• Humans
• Lung Neoplasms (drug therapy, pathology)
• Mice
• Mice, Nude
• Micelles
• NAD(P)H Dehydrogenase (Quinone) (antagonists & inhibitors, metabolism)
• Nanomedicine
• Naphthoquinones (pharmacokinetics, pharmacology)
• Survival Rate
• Tissue Distribution
• Xenograft Model Antitumor Assays