神经肤Y免疫反应阳性神经纤维在大鼠脾脏内的分布

用ABC免疫组织化学法结合葡萄糖氧化酶-DAB-硫酸镍铵(GDN)显色技术,研究神经肽Y(NPY)免疫反应阳性神经纤维在大鼠脾脏内的分布。结果表明,在脾脏内有较丰富的NPY免疫反应(NPY-IR)阳性神经纤维,它们多呈串珠状,主要伴动脉及其分支走行,也见于脾被膜的结缔组织内,白髓、红髓和边缘区等部位的淋巴组织中,以及脾血窦周围。脾内NPY免疫反应阳性神经纤维与血管和淋巴细胞的关系密切,提示它们对脾淋巴细胞的发育和功能可能有调节作用。NPY可能直接作用于淋巴细胞或通过调节脾的血液循环间接地发挥作用。

DISTRIBUTION OF NEUROPEPTIDE Y IMMUNOREACTIVE FIBERS IN THE SPLEEN OF RAT

The distribution of neuropeptide Yimmunoreactive (NPY-IR) fibers in the spleen of rat was investigated by using the immunohistochemical ABC method combine with glucose oxidase-DAB-nikel enhancement technique. The results demonstrated that the rat spleen is richly innervated by NPY-IR fibers. The NPY immunoreactive nerve fibers are mainly distributed along the branches of the arteries, especially surrounding the central arterioles. They are also observed in the connective tissue capsule, the lymphoid tissue of the white pulp, red pulp and marginal zone and around the splenic sinusoid. The positive fibers are closely related to the blood vessels and lymphocytes in the spleen, which suggested that these fibers may regulate the development and function of splenic lymphocytes. NPY may have a direct or an indirect effect on regulating blood circulation of the spleen and the lymphocytes.