【摘要】 目的:本实验研究自发性高血压大鼠胸腺机能异常的机制。方法:用原位杂交确定蛋白酶B的表达位置,Northern杂交分析组织蛋白酶B的表达水平,用TUNEL和流式细胞仪分别检测胸腺细胞的凋亡情况。结果:在离体和在体水平,胸腺组织蛋白酶B的表达与胸腺细胞凋亡伴行,在胸腺细胞的胞浆中检测到组织蛋白酶B的转录产物在6周和8周的自发性高血压大鼠胸腺中的表达高于WKY大鼠。结论:自发性高血压大鼠的胸腺细胞凋亡增加,与组织蛋白酶B的表达相关。更多还原

【Abstract】 AIM: To further investigate the mechanism of the thymus dysfunction in spontaneously hypertensive rats. METHODS: The location of cathepsin B expression was determined by in situ hybridization. The expression of cathepsin B was analyzed by Northern blot, and thymocyte apoptosis was detected by TUNEL and flow cytome-ter, respectively. RESULTS: The expression of cathepsin B in thymus paralleled with thymocyte apoptosis both in vitro and in vivo. Cathepsin B transcripts were located in the plasma of thymocytes and were more over-expressed of 6- and 8-week-old SHR than those in the thymus of WKY. CONCLUSION: Thymocyte apoptosis in SHR is increased and this phenomenon is associated with the expression of cathepsin B.更多还原