title: Haemophilus parasuis subunit vaccines based on native proteins with affinity to porcine transferrin prevent the expression of proinflammatory chemokines and cytokines in pigs.
abstract: The expression of chemokines (CCL-2 and CXCL-8) and cytokines (IL-1 α , IL-1 β , IL-6, TNF- α , and IL-10) was evaluated by RT-qPCR in colostrum-deprived pigs vaccinated and challenged with Haemophilus parasuis serovar 5. Two vaccines containing native proteins with affinity to porcine transferrin (NPAPTim and NPAPTit) were tested, along with two control groups: one inoculated with PBS instead of antigen (challenge group (CHG)), and another one nonimmunized and noninfected (blank group). The use of NPAPTim and NPAPTit resulted in complete protection against H. parasuis (no clinical signs and/or lesions), and both vaccines were capable of avoiding the expression of the proinflammatory molecules to levels similar to physiological values in blank group. However, overexpression of all proinflammatory molecules was observed in CHG group, mainly in the target infection tissues (brain, lungs, and spleen). High expression of CCL-2, CXCL-8, IL-1 α , IL-1 β , and IL-6 can be considered one of the characteristics of H. parasuis infection by serovar 5.
authors.affiliation: Unidad de Microbiología e Inmunología, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, 24007 León, Spain ; Laboratório de Imunologia e Doenças Infecto-Contagiosas, Faculdade de Agronomia e Medicina Veterinária, Universidade de Passo Fundo, 99052-900 Passo Fundo, RS, Brazil.
authors.forename: R
authors.initials: R
authors.lastname: Frandoloso
authors.affiliation: Unidad de Microbiología e Inmunología, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, 24007 León, Spain.
authors.forename: S
authors.initials: S
authors.lastname: Martínez-Martínez
authors.affiliation: Unidad de Microbiología e Inmunología, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, 24007 León, Spain.
authors.forename: E F
authors.initials: EF
authors.lastname: Rodríguez-Ferri
authors.affiliation: Unidad de Microbiología e Inmunología, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, 24007 León, Spain.
authors.forename: S
authors.initials: S
authors.lastname: Yubero
authors.affiliation: Instituto Tecnológico Agrario de Castilla y León (ITACyL), 47071 Valladolid, Spain.
authors.forename: D
authors.initials: D
authors.lastname: Rodríguez-Lázaro
authors.affiliation: Instituto Tecnológico Agrario de Castilla y León (ITACyL), 47071 Valladolid, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Hernández
authors.affiliation: Unidad de Microbiología e Inmunología, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, 24007 León, Spain.
authors.forename: C B
authors.initials: CB
authors.lastname: Gutiérrez-Martín
mesh_terms: D000818:Animals; D001428:Bacterial Vaccines / Q000276:immunology* / Q000378:metabolism; D018925:Chemokines / Q000235:genetics* / Q000378:metabolism; D016207:Cytokines / Q000235:genetics* / Q000378:metabolism; D015870:Gene Expression; D006192:Haemophilus Infections / Q000517:prevention & control / Q000662:veterinary*; D044137:Haemophilus parasuis / Q000276:immunology*; D006801:Humans; D018836:Inflammation Mediators / Q000378:metabolism; D013552:Swine; D013553:Swine Diseases / Q000378:metabolism / Q000517:prevention & control*; D014168:Transferrin / Q000276:immunology*; D022223:Vaccines, Subunit / Q000276:immunology / Q000378:metabolism
chemical_list: D001428:Bacterial Vaccines; D018925:Chemokines; D016207:Cytokines; D018836:Inflammation Mediators; D014168:Transferrin; D022223:Vaccines, Subunit