[Immunohistochemical study of the sinus mucosa during chronic maxillary sinusitis].

OBJECTIVE: To study the protective role of some immunocompetent cells and some humoral immune factors in the local mucosa during chronic sinusitis. METHOD: Using immunohistochemical streptavidinbiotin peroxide complex (SABC) method to investigate the distribution and the numbers about the T-lymphocytes and subsets, B-cells, macrophages, NK cells, mast cells eosinophils, HLA-DR antigen and IgA, IgG, complement C3, lysozyme in the local mucosa of two type chronic sinusitis. RESULT: The numbers of T-lymphocytes, T helper/inducer cells, B-cells and macrophages in the mucosa of chronic sinusitis type 1 was significantly more than these in the healthy control (P < 0.01). The number of T-lymphocytes, T suppressor cells, B cells, mast cells and eosinophils in the type 2 was significantly more than these in the healthy control (P < 0.01). The ratio of the helper cells to T suppressor cells significant different in the two type chronic sinusitis. CONCLUSION: The study showed that the infiltrating of immunocompetent cells was different between the two type chronic sinusitis.