Identification of Promiscuous African Swine Fever Virus T-Cell Determinants Using a Multiple Technical Approach
Visualitza/Obre
Autor/a
Bosch-Camós, Laia
López, Elisabet
Navas, María Jesús
Correa-Fiz, Florencia
Park, Chankyu
Carrascal, Montserrat
Domínguez, Javier
Salas, Maria Luisa
Nikolin, Veljko
Collado, Javier
Rodríguez, Fernando
Data de publicació
2021-01-07ISSN
2076-393X
Resum
The development of subunit vaccines against African swine fever (ASF) is mainly hindered by the lack of knowledge regarding the specific ASF virus (ASFV) antigens involved in protection. As a good example, the identity of ASFV-specific CD8+ T-cell determinants remains largely unknown, despite their protective role being established a long time ago. Aiming to identify them, we implemented the IFNγ ELISpot as readout assay, using as effector cells peripheral blood mononuclear cells (PBMCs) from pigs surviving experimental challenge with Georgia2007/1. As stimuli for the ELISpot, ASFV-specific peptides or full-length proteins identified by three complementary strategies were used. In silico prediction of specific CD8+ T-cell epitopes allowed identifying a 19-mer peptide from MGF100-1L, as frequently recognized by surviving pigs. Complementarily, the repertoire of SLA I-bound peptides identified in ASFV-infected porcine alveolar macrophages (PAMs), allowed the characterization of five additional SLA I-restricted ASFV-specific epitopes. Finally, in vitro stimulation studies using fibroblasts transfected with plasmids encoding full-length ASFV proteins, led to the identification of MGF505-7R, A238L and MGF100-1L as promiscuously recognized antigens. Interestingly, each one of these proteins contain individual peptides recognized by surviving pigs. Identification of the same ASFV determinants by means of such different approaches reinforce the results presented here.
Tipus de document
Article
Versió del document
Versió publicada
Llengua
Anglès
Matèries (CDU)
619 - Veterinària
Pàgines
20
Publicat per
MDPI
Publicat a
Vaccines
Citació
Bosch-Camós, Laia, Elisabet López, María Jesús Navas, Sonia Pina-Pedrero, Francesc Accensi, Florencia Correa-Fiz, and Chankyu Park et al. 2021. "Identification Of Promiscuous African Swine Fever Virus T-Cell Determinants Using A Multiple Technical Approach". Vaccines 9 (1): 29. doi:10.3390/vaccines9010029.
Número de l'acord de la subvenció
MINECO/Programa Estatal de I+D+I orientada a los retos de la Sociedad/AGL2016-78160-C2-1-R/ES/ESTRATEGIAS DE PROTECCION FRENTE A LA PESTE PORCINA AFRICANA: DE LA INVESTIGACION BASICA A LA APLICADA/
MICIU/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I y Programa Estatal de I+D+I orientada a los retos de la sociedad/PID2019-107616RB-I00/ES/Peste porcina africana; de la emergencia a evitar el endemismo/
Programa
Sanitat Animal
Aquest element apareix en la col·lecció o col·leccions següent(s)
- ARTICLES CIENTÍFICS [2536]
Els següents fitxers sobre la llicència estan associats a aquest element:
Excepte que s'indiqui una altra cosa, la llicència de l'ítem es descriu com http://creativecommons.org/licenses/by/4.0/