Tarek Adnan Ahmad1,2, Samar Saeed Rammah3, Salah Ahmed Sheweita3, Medhat Haroun3, Laila Hamdy El-Sayed2,4. 1. Special Projects Department, Bibliotheca Alexandrina, Alexandria, Egypt. 2. SeptivaK Research Group, Immunology and Allergy Department, Medical Research Institute, Alexandria University, Alexandria, Egypt. 3. Biotechnology Department, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt. 4. Immunology and Allergy Department, Medical Research Institute, Alexandria University, Alexandria, Egypt.
Abstract
BACKGROUND: Pasteurella multocida continues to pose a danger to prone farm and wild animals all over the world. Chemotherapeutic treatments are progressively losing their effectiveness, last for long time, and cost a lot of money, as well as being toxic to human consumers. Therefore, clearing the way for immunization as a big-wheel alternative against the economic grain. Yet, the vaccines available in the market do not confer the necessary protection against the pathogen. The integration of the well adjuvanted killed vaccine with the attenuated vaccines proved to offer an effective protection to the host animals. However, the bare use of the killed bacterin to provide protection from the possible harm of the live attenuated vaccine was doubtful. METHODS: In the present study, propolis extracts were used to ameliorate the immunogenicity of the Pasteurella bacterin. The cellular and humoral activities were assessed for the different bacterin formulations. RESULTS: Propolis extracts adjuvants proved to broaden and extend the IgG potency, as well as to induce a unique mucosal protection against the bacterium. Simultaneously it offered an anti-inflammatory effect that increased the tolerability to the bacterin. While the cellular activity was relatively reduced with propolis extracts. CONCLUSION: These results confirm the effectiveness of the formulation of the bacterin with propolis to offer a potent homologous primary protection to the animals against the long-life use of the attenuated Pasteurella vaccines.
BACKGROUND: Pasteurella multocida continues to pose a danger to prone farm and wild animals all over the world. Chemotherapeutic treatments are progressively losing their effectiveness, last for long time, and cost a lot of money, as well as being toxic to human consumers. Therefore, clearing the way for immunization as a big-wheel alternative against the economic grain. Yet, the vaccines available in the market do not confer the necessary protection against the pathogen. The integration of the well adjuvanted killed vaccine with the attenuated vaccines proved to offer an effective protection to the host animals. However, the bare use of the killed bacterin to provide protection from the possible harm of the live attenuated vaccine was doubtful. METHODS: In the present study, propolis extracts were used to ameliorate the immunogenicity of the Pasteurella bacterin. The cellular and humoral activities were assessed for the different bacterin formulations. RESULTS: Propolis extracts adjuvants proved to broaden and extend the IgG potency, as well as to induce a unique mucosal protection against the bacterium. Simultaneously it offered an anti-inflammatory effect that increased the tolerability to the bacterin. While the cellular activity was relatively reduced with propolis extracts. CONCLUSION: These results confirm the effectiveness of the formulation of the bacterin with propolis to offer a potent homologous primary protection to the animals against the long-life use of the attenuated Pasteurella vaccines.
Authors: Fernando Cardoso-Toset; Jaime Gómez-Laguna; María Callejo; Ana Isabel Vela; Librado Carrasco; Jose Francisco Fernández-Garayzábal; Alfonso Maldonado; Inmaculada Luque Journal: Vet Microbiol Date: 2013-08-20 Impact factor: 3.293
Authors: N M van der Meer; B J Appelmelk; A M Verweij-van Vught; W Nimmich; P Kosma; L G Thijs; J de Graaff; D M MacLaren Journal: Infect Immun Date: 1994-03 Impact factor: 3.441