Prime Vaccination with Chitosan-Coated Phipps BCG and Boosting with CFP-PLGA against Tuberculosis in a Goat Model

Attempts to improve the immune response and efficacy of vaccines against tuberculosis in cattle, goats, and other animal species have been the focus of research in this field during the last two decades. Improving the vaccine efficacy is essential prior to running long-lasting and expensive field tr...

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Bibliographic Details
Published in:Animals (Basel) 2021-04, Vol.11 (4), p.1046
Main Authors: Contreras-Magallanes, Yesenia Guadalupe, Durán-Aguilar, Marina, Sosa-Gallegos, Susana L, Álvarez, Ángel H, Andrade-Santillán, Fátima A, Bárcenas-Reyes, Isabel, González-Ruíz, Sara, Rodríguez-Hernández, Elba, Cantó-Alarcón, Germinal J, Milián-Suazo, Feliciano
Format: Article
Language:English
Subjects:
Acoustics
Addition polymerization
Animal populations
Animal species
Animals
Antigens
BCG vaccine
Cattle
Cell culture
Chitosan
Control programs
Dairy industry
Filtrate
Glycolic acid
goats
Health risks
Immune response
Immune system
Infections
Infectious diseases
Interferon
Lesions
Mycobacterium bovis
poly (lactic-co-glycolic acid)
Polylactide-co-glycolide
Polymers
Proteins
Public health
Tuberculin
Tuberculosis
Vaccine efficacy
Vaccines
γ-Interferon
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Summary:Attempts to improve the immune response and efficacy of vaccines against tuberculosis in cattle, goats, and other animal species have been the focus of research in this field during the last two decades. Improving the vaccine efficacy is essential prior to running long-lasting and expensive field trials. Studies have shown that vaccine protocols utilizing boosting with proteins improve the vaccine efficacy. The use of polymers such as chitosan and PolyLactic-co-Glycolic Acid (PLGA) improves the immune response against different diseases by improving the interaction of antigens with the cellular immune system and modulating the host immune response. This study shows that the prime BCG vaccination, boosted with a culture filtrate protein (CFP), alone or in combination with chitosan and PolyLactic-co-Glycolic Acid (PLGA), have the potential to reduce tuberculosis (TB) dissemination by reducing the number of animals with lesions, the number of lesions per animal, and the size of the lesions in vaccinated animals, compared with those not vaccinated or those vaccinated with BCG alone. The vaccinated groups showed significantly higher Interferon-γ levels in the blood compared to the control, nonvaccinated group after vaccination, after boosting, and after the challenge with the wild-type strain.
ISSN:2076-2615
2076-2615
DOI:10.3390/ani11041046