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Recombinant Phage Elicits Protective Immune Response against Systemic S. globosa Infection in Mouse Model

Sporothrix globosa is a type of fungus that typically infects immunocompromised patients. Its prevention continues to pose a challenge. A 70-KDa glycoprotein (Gp70) of Sporothrix has been previously reported to protect host against infection from this fungus. Here, we displayed an epitope peptide (k...

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Detalles Bibliográficos
Autores principales: Chen, Feng, Jiang, Rihua, Wang, Yicun, Zhu, Mingji, Zhang, Xu, Dong, Shuai, Shi, Hongxi, Wang, Li
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5292741/
https://www.ncbi.nlm.nih.gov/pubmed/28165018
http://dx.doi.org/10.1038/srep42024
Descripción
Sumario:Sporothrix globosa is a type of fungus that typically infects immunocompromised patients. Its prevention continues to pose a challenge. A 70-KDa glycoprotein (Gp70) of Sporothrix has been previously reported to protect host against infection from this fungus. Here, we displayed an epitope peptide (kpvqhalltplgldr) of Gp70 on the major coat protein (pIII), and investigated its efficiency as a vaccine for preventing S. globosa infection. The recombinant phage and the heat-killed S. globosa were used to immunize mice separately. In this study, we evaluated the humoral and cellular immune responses in the mice and demonstrated that recombinant phage could induce mice to produce a stronger immune response and generate antibodies to inhibit S. globosa infection. Furthermore, immunization with recombinant phage could increase the survival rate of S. globosa infection in mice. All these results together indicated that recombinant phages displaying kpvqhalltplgldr are a potential vaccine candidate against S. globosa infection.