PMID- 18656557 OWN - NLM STAT- MEDLINE DCOM- 20090430 LR - 20211020 IS - 1567-5769 (Print) IS - 1567-5769 (Linking) VI - 8 IP - 11 DP - 2008 Nov TI - Enhanced immunogenicity of a bivalent nicotine vaccine. PG - 1589-94 LID - 10.1016/j.intimp.2008.07.001 [doi] AB - The efficacy of nicotine vaccines for smoking cessation is dependent upon their ability to elicit sufficiently high serum antibody concentrations. This study compared two nicotine immunogens representing different hapten presentations, 3'-aminomethyl nicotine conjugated to recombinant Pseudomonas exoprotein A (3'-AmNic-rEPA) and 6-carboxymethlureido nicotine conjugated to keyhole limpet hemocyanin (6-CMUNic-KLH), and assessed whether their concurrent administration would produce additive serum antibody concentrations in rats. Effects of vaccination on nicotine pharmacokinetics were also studied. Vaccination of rats with these immunogens produced non cross-reacting nicotine-specific antibodies (NicAb). Serum NicAb concentrations elicited by each individual immunogen were not affected by whether the immunogens were administered alone as monovalent vaccines or together as a bivalent vaccine. The total NicAb concentration in the bivalent vaccine group was additive compared to that of the monovalent vaccines alone. Higher serum NicAb concentrations, irrespective of which immunogen elicited the antibodies, were associated with greater binding of nicotine in serum, a lower unbound nicotine concentration in serum, and lower brain nicotine concentration. These results demonstrate that it is possible to design immunogens which provide distinct nicotine epitopes for immune presentation, and which produce additive serum antibody levels. The concurrent administration of these immunogens as a bivalent vaccine may provide a general strategy for enhancing the antibody response to small molecules such as nicotine. FAU - Keyler, D E AU - Keyler DE AD - Minneapolis Medical Research Foundation, Minneapolis, MN, United States. FAU - Roiko, S A AU - Roiko SA FAU - Earley, C A AU - Earley CA FAU - Murtaugh, M P AU - Murtaugh MP FAU - Pentel, P R AU - Pentel PR LA - eng GR - T32 DA007097/DA/NIDA NIH HHS/United States GR - P50-DA013333/DA/NIDA NIH HHS/United States GR - F31 DA021946/DA/NIDA NIH HHS/United States GR - DA10714/DA/NIDA NIH HHS/United States GR - P50 DA013333/DA/NIDA NIH HHS/United States GR - T32-DA07097/DA/NIDA NIH HHS/United States GR - R01 DA010714/DA/NIDA NIH HHS/United States GR - R01 DA010714-12/DA/NIDA NIH HHS/United States GR - P50 DA013333-100002/DA/NIDA NIH HHS/United States GR - F31-DA021946/DA/NIDA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20080724 PL - Netherlands TA - Int Immunopharmacol JT - International immunopharmacology JID - 100965259 RN - 0 (Antigens, Bacterial) RN - 0 (Bacterial Proteins) RN - 0 (Vaccines, Conjugate) RN - 0 (pseudomonas exoprotein A protein, Pseudomonas aeruginosa) RN - 6M3C89ZY6R (Nicotine) RN - 9013-72-3 (Hemocyanins) RN - FV4Y0JO2CX (keyhole-limpet hemocyanin) SB - IM MH - Animals MH - Antigens, Bacterial/immunology MH - Bacterial Proteins/chemistry/*immunology MH - Cross Reactions/immunology MH - Hemocyanins/chemistry/*immunology MH - Nicotine/chemistry/*immunology MH - Rats MH - Smoking/*therapy MH - Smoking Cessation/*methods MH - *Vaccination MH - Vaccines, Conjugate/chemistry/immunology PMC - PMC2577591 MID - NIHMS73081 EDAT- 2008/07/29 09:00 MHDA- 2009/05/01 09:00 PMCR- 2009/11/01 CRDT- 2008/07/29 09:00 PHST- 2008/03/05 00:00 [received] PHST- 2008/06/30 00:00 [revised] PHST- 2008/07/01 00:00 [accepted] PHST- 2008/07/29 09:00 [pubmed] PHST- 2009/05/01 09:00 [medline] PHST- 2008/07/29 09:00 [entrez] PHST- 2009/11/01 00:00 [pmc-release] AID - S1567-5769(08)00202-6 [pii] AID - 10.1016/j.intimp.2008.07.001 [doi] PST - ppublish SO - Int Immunopharmacol. 2008 Nov;8(11):1589-94. doi: 10.1016/j.intimp.2008.07.001. Epub 2008 Jul 24.