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Paracoccidioides brasiliensis 14-3-3 protein is important for virulence in a murine model
Caroline Maria Marcos1, Haroldo Cesar de Oliveira1, Patricia Akemi Assato1
1Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Campus Araraquara, Departamento de Análises Clínicas, Laboratório de Micologia Clinica, Araraquara, São Paulo, Brasil.
Abstract:
The Paracoccidioides brasiliensis strain downregulated the expression of adhesin Pb14-3-3 (Pb14-3-3 aRNA) was evaluated in a murine model of paracoccidioidomycosis (PCM). Pb14-3-3 aRNA displays attenuated virulence and triggered the formation of fewer granulomas by lowering the fungal burden in the lungs. Additionally, the Pb14-3-3 aRNA showed more elongated yeast cells and less ability to induce pneumocytes apoptosis in vitro. Our results show that 14-3-3 is an important virulence factor in P. brasiliensis-induced pulmonary infection.
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