摘要
目的定位免疫功能相关的中枢脑区。方法以大鼠脑内细胞因子 IL- 1β、 IL- 6、 IL- 2和 TGF-β 1的表达为观察指标 ,应用免疫组化 ABC法和免疫荧光法 ,比较不同免疫状态大鼠与正常对照大鼠脑内 IL- 1β、 IL- 6、 IL- 2和 TGF-β 1阳性细胞的分布，以及细胞因子的表达与免疫状态的关系；分析 IL- 1β、 IL- 6和 TGF-β 1阳性细胞的细胞性质。结果（ 1）在免疫组和对照组大鼠多个脑区中观察到 IL- 1β、 IL- 6和 TGF-β 1阳性细胞的分布，但仅有下丘脑外侧区 (LH)和前杏仁核（ AA）内 IL- 1β、 IL- 6和 TGF-β 1的表达与大鼠是否被抗原免疫有关。（ 2）细胞双标记证明表达细胞因子的细胞为神经元。结论下丘脑外侧区和前杏仁核为参与神经免疫调节功能的特定脑区之一，该脑区的神经免疫调节功能是通过神经源性细胞因子介导实现的。
To study the location of brain areas involved in immunoregulation. Methods Immunohistochemistry and immunofluorescence were used to detect the different distribution of cytokines immunopositive cells in the brain of rats immunized via both intraperitoneal and subcutaneous injections.Results The cytokines immunopositive cells were distributed in the supraoptic (SO) and paraventricular (PV) nuclei of the hypothalamus, the anterior hypothalamic (AH) nucleus, arcuate and median eminence, the lateral hypothalamic nucleus(LH) and the amygdaloid nuclear complex while only the appearance of the cytokines immunopositive cells in LH and amygdaloid nuclear complex in hypothalamus was related with immunization status of the animals. Double- labelling results showed that the cytokines immunopositive cells were neurons. Conclusions We have observed that neurons of the LH and amygdaloid nuclear complex in hypothalamus as a main source of the neuroimmunoregulator played a key role in neuroimmunoregulation and they participated in the neuroimmunoregulation at an early stage of the immune response.
出处
《中国医学科学院学报》
CAS
CSCD
北大核心
2000年第6期525-528,共4页
Acta Academiae Medicinae Sinicae
