Perspectives for improvement of Mycoplasma hyopneumoniae vaccines in pigs
Autor: | Artur Summerfield, Freddy Haesebrouck, Peter Kuhnert, Dominiek Maes, Filip Boyen, Bert Devriendt |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Agriculture and Food Sciences
0301 basic medicine Swine Veterinary medicine medicine.medical_treatment Sus scrofa Review Immune responses medicine.disease_cause 0403 veterinary science EXPERIMENTAL-INFECTION Mycoplasma Mycoplasma hyopneumoniae SF600-1100 610 Medicine & health Pathogen IN-VIVO Experimental vaccines Attenuated vaccine biology 630 Agriculture Vaccination pigs 04 agricultural and veterinary sciences vaccines Pneumonia of Swine Mycoplasmal C-TERMINAL PORTION REPEAT REGION Bacterial Vaccines ORAL IMMUNIZATION Adjuvant TYPHIMURIUM-AROA 040301 veterinary sciences 03 medical and health sciences Immune system Antigen medicine Animals Veterinary Sciences LUNG LESIONS Pig General Veterinary SYSTEMIC IMMUNE-RESPONSES biology.organism_classification LYMPHOID-TISSUE MUCOSAL VACCINE 030104 developmental biology Immunology 570 Life sciences |
Zdroj: | Maes, Dominiek; Boyen, Filip; Devriendt, Bert; Kuhnert, Peter; Summerfield, Artur; Haesebrouck, Freddy (2021). Perspectives for improvement of Mycoplasma hyopneumoniae vaccines in pigs. Veterinary research, 52(1), p. 67. BioMed Central 10.1186/s13567-021-00941-x Veterinary Research, Vol 52, Iss 1, Pp 1-20 (2021) Veterinary Research VETERINARY RESEARCH |
ISSN: | 0928-4249 1297-9716 |
Popis: | Mycoplasma hyopneumoniae (M. hyopneumoniae) is one of the primary agents involved in the porcine respiratory disease complex, economically one of the most important diseases in pigs worldwide. The pathogen adheres to the ciliated epithelium of the trachea, bronchi, and bronchioles, causes damage to the mucosal clearance system, modulates the immune system and renders the animal more susceptible to other respiratory infections. The pathogenesis is very complex and not yet fully understood. Cell-mediated and likely also mucosal humoral responses are considered important for protection, although infected animals are not able to rapidly clear the pathogen from the respiratory tract. Vaccination is frequently practiced worldwide to control M. hyopneumoniae infections and the associated performance losses, animal welfare issues, and treatment costs. Commercial vaccines are mostly bacterins that are administered intramuscularly. However, the commercial vaccines provide only partial protection, they do not prevent infection and have a limited effect on transmission. Therefore, there is a need for novel vaccines that confer a better protection. The present paper gives a short overview of the pathogenesis and immune responses following M. hyopneumoniae infection, outlines the major limitations of the commercial vaccines and reviews the different experimental M. hyopneumoniae vaccines that have been developed and tested in mice and pigs. Most experimental subunit, DNA and vector vaccines are based on the P97 adhesin or other factors that are important for pathogen survival and pathogenesis. Other studies focused on bacterins combined with novel adjuvants. Very few efforts have been directed towards the development of attenuated vaccines, although such vaccines may have great potential. As cell-mediated and likely also humoral mucosal responses are important for protection, new vaccines should aim to target these arms of the immune response. The selection of proper antigens, administration route and type of adjuvant and carrier molecule is essential for success. Also practical aspects, such as cost of the vaccine, ease of production, transport and administration, and possible combination with vaccines against other porcine pathogens, are important. Possible avenues for further research to develop better vaccines and to achieve a more sustainable control of M. hyopneumoniae infections are discussed. |
Databáze: | OpenAIRE |
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