Evaluation of a virulent strain of Mycobacterium avium subsp. Paratuberculosis used as a heat-killed vaccine

•Our vaccine candidate (6611 strain) reduced the infection in challenged mice.•Our vaccine candidate induced humoral and cellular immune response.•No false PPDb reactor was detected in the caudal fold tuberculin test. Bovine paratuberculosis is one of the most important chronic infectious diseases i...

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Veröffentlicht in:Vaccine 2021-12, Vol.39 (51), p.7401-7412
Hauptverfasser: Colombatti Olivieri, María Alejandra, Moyano, Roberto Damián, Mon, María Laura, Gravisaco, María José, Alvarado Pinedo, María Fiorella, Delgado, Fernando Oscar, Hernández Pando, Rogelio, Alonso, María Natalia, Cuerda, María Ximena, Santangelo, María de la Paz, Romano, María Isabel
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container_end_page 7412
container_issue 51
container_start_page 7401
container_title Vaccine
container_volume 39
creator Colombatti Olivieri, María Alejandra
Moyano, Roberto Damián
Mon, María Laura
Gravisaco, María José
Alvarado Pinedo, María Fiorella
Delgado, Fernando Oscar
Hernández Pando, Rogelio
Alonso, María Natalia
Cuerda, María Ximena
Santangelo, María de la Paz
Romano, María Isabel
description •Our vaccine candidate (6611 strain) reduced the infection in challenged mice.•Our vaccine candidate induced humoral and cellular immune response.•No false PPDb reactor was detected in the caudal fold tuberculin test. Bovine paratuberculosis is one of the most important chronic infectious diseases in livestock. This disease is difficult to control because of its inefficient management (test and cull strategy and inadequate biosecurity). Thus, the development of an effective vaccine is essential. In this study, we evaluated a local virulent strain (6611) of Mycobacterium avium subsp. paratuberculosis as an inactivated vaccine in comparison with the Silirum vaccine in mouse model and cattle. Regarding the mice model, only the groups vaccinated with 6611 showed lower colony forming unit (CFU) counts with a lower lesion score in the liver in comparison to the control group at 6 and 12 weeks post-challenge (wpc). The immune response was predominantly humoral (IgG1), although both vaccinated groups presented a cellular response with IFNγ production as well, but the 6611 group had also significant production of IL-2, IL-6, IL-17a, TNF, and IL-10. In cattle, the 6611 vaccinated group was the only one that maintained significant antibody values at the end of the trial, with significant production of IgG2 and IFNγ. No PPDb reactor was detected in the vaccinated animals, according to the intradermal caudal fold tuberculin test. Our results indicate that the 6611 local strain protected mice from challenge with a virulent strain, by inducing a humoral and cellular immune response. In the bovine, the natural host, the evaluated vaccine also induced humoral and cellular immune responses, with higher levels of CD4 + CD25+ and CD8 + CD25+ T cells populations than the commercial vaccine. Despite the encouraging results obtained in this study, an experimental challenge trial in cattle is mandatory to evaluate the efficacy of our candidate vaccine in the main host.
doi_str_mv 10.1016/j.vaccine.2021.10.084
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Paratuberculosis used as a heat-killed vaccine</title><source>MEDLINE</source><source>Elsevier ScienceDirect Journals Complete</source><source>ProQuest Central UK/Ireland</source><creator>Colombatti Olivieri, María Alejandra ; Moyano, Roberto Damián ; Mon, María Laura ; Gravisaco, María José ; Alvarado Pinedo, María Fiorella ; Delgado, Fernando Oscar ; Hernández Pando, Rogelio ; Alonso, María Natalia ; Cuerda, María Ximena ; Santangelo, María de la Paz ; Romano, María Isabel</creator><creatorcontrib>Colombatti Olivieri, María Alejandra ; Moyano, Roberto Damián ; Mon, María Laura ; Gravisaco, María José ; Alvarado Pinedo, María Fiorella ; Delgado, Fernando Oscar ; Hernández Pando, Rogelio ; Alonso, María Natalia ; Cuerda, María Ximena ; Santangelo, María de la Paz ; Romano, María Isabel</creatorcontrib><description>•Our vaccine candidate (6611 strain) reduced the infection in challenged mice.•Our vaccine candidate induced humoral and cellular immune response.•No false PPDb reactor was detected in the caudal fold tuberculin test. Bovine paratuberculosis is one of the most important chronic infectious diseases in livestock. This disease is difficult to control because of its inefficient management (test and cull strategy and inadequate biosecurity). Thus, the development of an effective vaccine is essential. In this study, we evaluated a local virulent strain (6611) of Mycobacterium avium subsp. paratuberculosis as an inactivated vaccine in comparison with the Silirum vaccine in mouse model and cattle. Regarding the mice model, only the groups vaccinated with 6611 showed lower colony forming unit (CFU) counts with a lower lesion score in the liver in comparison to the control group at 6 and 12 weeks post-challenge (wpc). The immune response was predominantly humoral (IgG1), although both vaccinated groups presented a cellular response with IFNγ production as well, but the 6611 group had also significant production of IL-2, IL-6, IL-17a, TNF, and IL-10. In cattle, the 6611 vaccinated group was the only one that maintained significant antibody values at the end of the trial, with significant production of IgG2 and IFNγ. No PPDb reactor was detected in the vaccinated animals, according to the intradermal caudal fold tuberculin test. Our results indicate that the 6611 local strain protected mice from challenge with a virulent strain, by inducing a humoral and cellular immune response. In the bovine, the natural host, the evaluated vaccine also induced humoral and cellular immune responses, with higher levels of CD4 + CD25+ and CD8 + CD25+ T cells populations than the commercial vaccine. 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All rights reserved.</rights><rights>2021. Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c393t-79eaf26357362a135c3dc3e0244d588debae1d63a7c0ada5245222806ac34da93</citedby><cites>FETCH-LOGICAL-c393t-79eaf26357362a135c3dc3e0244d588debae1d63a7c0ada5245222806ac34da93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/2608446500?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995,64385,64387,64389,72469</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/34774361$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Colombatti Olivieri, María Alejandra</creatorcontrib><creatorcontrib>Moyano, Roberto Damián</creatorcontrib><creatorcontrib>Mon, María Laura</creatorcontrib><creatorcontrib>Gravisaco, María José</creatorcontrib><creatorcontrib>Alvarado Pinedo, María Fiorella</creatorcontrib><creatorcontrib>Delgado, Fernando Oscar</creatorcontrib><creatorcontrib>Hernández Pando, Rogelio</creatorcontrib><creatorcontrib>Alonso, María Natalia</creatorcontrib><creatorcontrib>Cuerda, María Ximena</creatorcontrib><creatorcontrib>Santangelo, María de la Paz</creatorcontrib><creatorcontrib>Romano, María Isabel</creatorcontrib><title>Evaluation of a virulent strain of Mycobacterium avium subsp. Paratuberculosis used as a heat-killed vaccine</title><title>Vaccine</title><addtitle>Vaccine</addtitle><description>•Our vaccine candidate (6611 strain) reduced the infection in challenged mice.•Our vaccine candidate induced humoral and cellular immune response.•No false PPDb reactor was detected in the caudal fold tuberculin test. Bovine paratuberculosis is one of the most important chronic infectious diseases in livestock. This disease is difficult to control because of its inefficient management (test and cull strategy and inadequate biosecurity). Thus, the development of an effective vaccine is essential. In this study, we evaluated a local virulent strain (6611) of Mycobacterium avium subsp. paratuberculosis as an inactivated vaccine in comparison with the Silirum vaccine in mouse model and cattle. 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In the bovine, the natural host, the evaluated vaccine also induced humoral and cellular immune responses, with higher levels of CD4 + CD25+ and CD8 + CD25+ T cells populations than the commercial vaccine. 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Paratuberculosis used as a heat-killed vaccine</title><author>Colombatti Olivieri, María Alejandra ; Moyano, Roberto Damián ; Mon, María Laura ; Gravisaco, María José ; Alvarado Pinedo, María Fiorella ; Delgado, Fernando Oscar ; Hernández Pando, Rogelio ; Alonso, María Natalia ; Cuerda, María Ximena ; Santangelo, María de la Paz ; Romano, María Isabel</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c393t-79eaf26357362a135c3dc3e0244d588debae1d63a7c0ada5245222806ac34da93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Animal diseases</topic><topic>Animals</topic><topic>Antibodies</topic><topic>Bacterial Vaccines</topic><topic>Biosecurity</topic><topic>Cattle</topic><topic>Cattle Diseases - prevention &amp; control</topic><topic>CD25 antigen</topic><topic>CD4 antigen</topic><topic>CD8 antigen</topic><topic>Cytokines</topic><topic>Disease control</topic><topic>Disease prevention</topic><topic>Granulomas</topic><topic>Histopathology</topic><topic>Hot Temperature</topic><topic>Immune response</topic><topic>Immune response (cell-mediated)</topic><topic>Immune response (humoral)</topic><topic>Immune system</topic><topic>Immunoglobulin G</topic><topic>Infections</topic><topic>Infectious diseases</topic><topic>Interleukin 10</topic><topic>Interleukin 2</topic><topic>Interleukin 6</topic><topic>Livestock</topic><topic>Lymphocytes</topic><topic>Lymphocytes T</topic><topic>Mice</topic><topic>Mycobacterium avium</topic><topic>Mycobacterium avium subsp. paratuberculosis</topic><topic>Paratuberculosis</topic><topic>Paratuberculosis - prevention &amp; 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Paratuberculosis used as a heat-killed vaccine</atitle><jtitle>Vaccine</jtitle><addtitle>Vaccine</addtitle><date>2021-12-17</date><risdate>2021</risdate><volume>39</volume><issue>51</issue><spage>7401</spage><epage>7412</epage><pages>7401-7412</pages><issn>0264-410X</issn><eissn>1873-2518</eissn><abstract>•Our vaccine candidate (6611 strain) reduced the infection in challenged mice.•Our vaccine candidate induced humoral and cellular immune response.•No false PPDb reactor was detected in the caudal fold tuberculin test. Bovine paratuberculosis is one of the most important chronic infectious diseases in livestock. This disease is difficult to control because of its inefficient management (test and cull strategy and inadequate biosecurity). Thus, the development of an effective vaccine is essential. In this study, we evaluated a local virulent strain (6611) of Mycobacterium avium subsp. paratuberculosis as an inactivated vaccine in comparison with the Silirum vaccine in mouse model and cattle. Regarding the mice model, only the groups vaccinated with 6611 showed lower colony forming unit (CFU) counts with a lower lesion score in the liver in comparison to the control group at 6 and 12 weeks post-challenge (wpc). The immune response was predominantly humoral (IgG1), although both vaccinated groups presented a cellular response with IFNγ production as well, but the 6611 group had also significant production of IL-2, IL-6, IL-17a, TNF, and IL-10. In cattle, the 6611 vaccinated group was the only one that maintained significant antibody values at the end of the trial, with significant production of IgG2 and IFNγ. No PPDb reactor was detected in the vaccinated animals, according to the intradermal caudal fold tuberculin test. Our results indicate that the 6611 local strain protected mice from challenge with a virulent strain, by inducing a humoral and cellular immune response. In the bovine, the natural host, the evaluated vaccine also induced humoral and cellular immune responses, with higher levels of CD4 + CD25+ and CD8 + CD25+ T cells populations than the commercial vaccine. Despite the encouraging results obtained in this study, an experimental challenge trial in cattle is mandatory to evaluate the efficacy of our candidate vaccine in the main host.</abstract><cop>Netherlands</cop><pub>Elsevier Ltd</pub><pmid>34774361</pmid><doi>10.1016/j.vaccine.2021.10.084</doi><tpages>12</tpages></addata></record>
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identifier ISSN: 0264-410X
ispartof Vaccine, 2021-12, Vol.39 (51), p.7401-7412
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language eng
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source MEDLINE; Elsevier ScienceDirect Journals Complete; ProQuest Central UK/Ireland
subjects Animal diseases
Animals
Antibodies
Bacterial Vaccines
Biosecurity
Cattle
Cattle Diseases - prevention & control
CD25 antigen
CD4 antigen
CD8 antigen
Cytokines
Disease control
Disease prevention
Granulomas
Histopathology
Hot Temperature
Immune response
Immune response (cell-mediated)
Immune response (humoral)
Immune system
Immunoglobulin G
Infections
Infectious diseases
Interleukin 10
Interleukin 2
Interleukin 6
Livestock
Lymphocytes
Lymphocytes T
Mice
Mycobacterium avium
Mycobacterium avium subsp. paratuberculosis
Paratuberculosis
Paratuberculosis - prevention & control
Silirum
Tuberculin
Tuberculosis
Tumor necrosis factor
Vaccine
Vaccines
Vaccines, Inactivated
Virulence
γ-Interferon
title Evaluation of a virulent strain of Mycobacterium avium subsp. Paratuberculosis used as a heat-killed vaccine
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