Simultaneous Administration of Recombinant Measles Viruses Expressing Respiratory Syncytial Virus Fusion (F) and Nucleo (N) Proteins Induced Humoral and Cellular Immune Responses in Cotton Rats.
We previously reported that measles virus expressing recombinant respiratory syncytial virus (RSV) fusion protein (F), MVAIK / RSV / F, induced neutralizing antibodies against RSV, and they express RSV-NP (MVAIK / RSV / NP) and M2-1 ( MVAIK / RSV / M2-1) RSV-specific induced CD8⁺ / cell IFN-γ⁺, but no neutralizing antibodies. In this study, MVAIK / RSV / F and MVAIK / RSV / NP simultaneously given to the cotton rat and Viral Recombinant Proteins immune responses and protective effects compared to MVAIK / RSV / F only. sufficient neutralizing antibodies against RSV and RSV-specific CD8⁺ / IFN-γ⁺ cells were observed after re-immunization with simultaneous administration. After the RSV challenge, CD8⁺ / IFN-γ⁺ increased in spleen cells obtained from immunization groups simultaneously in response to F and NP peptide. amount to more than CD8⁺ / IFN-γ⁺ and CD4⁺ / IFN-γ⁺ cells were detected in the lung tissue of simultaneous immunization group after RSV challenge. There is no RSV ...