肺部和北美的肺化分枝杆菌(NTM)的患病率正在增加。大多数肺NTM是由鸟分枝杆菌(MAC)引起的。肺MAC的治疗是次优的,失败率范围从30%到40%,需要开发新的疫苗。在这项研究中,我们测试了两种全细胞疫苗,DAR-901(HEAD杀死M. Obuense)和BCG(Live Pive nive nive s. Bovis),通过首先对Balb/C小鼠进行免疫接种,然后进行过夜刺激过夜刺激,从而诱导MAC交叉反应免疫。研究这些疫苗预防MAC感染的能力,BALB/C小鼠以DAR-901(皮内)或BCG(皮下或鼻内内)接种疫苗,并在4周后用雾化的MAC挑战。一些通过饲料用克拉霉素治疗了接受BCG接种的小鼠。感染后4周对免疫小鼠和未接种疫苗的对照进行肺CFU。 Our results showed that i) DAR-901 induced cross-reactive immunity to MAC and the level of MAC cross-reactive immunity was similar to the level of immunity induced by BCG, ii) DAR-901 and BCG protect against aerosol MAC, iii) mucosal BCG vaccination provided the best protection against MAC challenge, and iv) BCG vaccination did not interfere with anti-MAC activities of克拉霉素。肺CFU。Our results showed that i) DAR-901 induced cross-reactive immunity to MAC and the level of MAC cross-reactive immunity was similar to the level of immunity induced by BCG, ii) DAR-901 and BCG protect against aerosol MAC, iii) mucosal BCG vaccination provided the best protection against MAC challenge, and iv) BCG vaccination did not interfere with anti-MAC activities of克拉霉素。
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