Sci Transl Med 27 June 2012:
Vol. 4, Issue 140, p. 140ra87
Sci. Transl. Med. DOI: 10.1126/scitranslmed.3003611
Vol. 4, Issue 140, p. 140ra87
Sci. Transl. Med. DOI: 10.1126/scitranslmed.3003611
- Research Article
AAV-Directed Persistent Expression of a Gene Encoding Anti-Nicotine Antibody for Smoking Cessation
- Martin J. Hicks1,*,†,
- Jonathan B. Rosenberg1,*,
- Bishnu P. De1,*,
- Odelya E. Pagovich1,
- Colin N. Young2,
- Jian-ping Qiu1,
- Stephen M. Kaminsky1,
- Neil R. Hackett1,
- Stefan Worgall1,3,
- Kim D. Janda4,
- Robin L. Davisson2,5 and
- Ronald G. Crystal1
+ Author Affiliations
- ↵†To whom correspondence should be addressed. E-mail: geneticmedicine@med.cornell.edu
Abstract
Current strategies to help tobacco smokers quit have limited success as a result of the addictive properties of the nicotine in cigarette smoke. We hypothesized that a single administration of an adeno-associated virus (AAV) gene transfer vector expressing high levels of an anti-nicotine antibody would persistently prevent nicotine from reaching its receptors in the brain. To test this hypothesis, we constructed an AAVrh.10 vector that expressed a full-length, high-affinity, anti-nicotine antibody derived from the Fab fragment of the anti-nicotine monoclonal antibody NIC9D9 (AAVantiNic). In mice treated with this vector, blood concentrations of the anti-nicotine antibody were dose-dependent, and the antibody showed high specificity and affinity for nicotine. The antibody shielded the brain from systemically administered nicotine, reducing brain nicotine concentrations to 15% of those in naïve mice. The amount of nicotine sequestered in the serum of vector-treated mice was more than seven times greater than that in untreated mice, with 83% of serum nicotine bound to immunoglobulin G. Treatment with the AAVantiNic vector blocked nicotine-mediated alterations in arterial blood pressure, heart rate, and locomotor activity. In summary, a single administration of a gene transfer vector expressing a high-affinity anti-nicotine monoclonal antibody elicited persistent (18 weeks), high titers of an anti-nicotine antibody that obviated the physiologic effects of nicotine. If this degree of efficacy translates to humans, AAVantiNic could be an effective preventative therapy for nicotine addiction.
- Copyright © 2012, American Association for the Advancement of Science
Citation: AAV-Directed Persistent Expression of a Gene Encoding Anti-Nicotine Antibody for Smoking Cessation. Sci. Transl. Med. 4, 140ra87 (2012).
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