肺不仅是一个重要的呼吸器官,而且是一个重要的免疫防御器官。呼吸道的免疫防御功能,一般分为非特异性免疫(例如纤毛运动功能、肺吞噬细胞的吞噬功能等)和特异性免疫(例如局部的体液免疫和细胞免疫)。目前,国内外对肺的非特异性免疫和肺的局部体液免疫做了比较多的研究;但是,对肺的细胞免疫的研究还做得比较少。为此,我们应用豚鼠T The lungs are not only an important respiratory organ, but also an important immune defense organ. The immune defense function of the respiratory tract is generally divided into non-specific immunity (such as ciliary motor function, phagocytosis of lung phagocytes, etc.) and specific immunity (such as local humoral and cellular immunity). At present, more and more researches have been done on non-specific lung immunity and local humoral immunity of the lung both at home and abroad; however, there are still few researches on cellular immunity of the lung. To this end, we use guinea pig T