当归与硝苯吡啶对慢性支气管炎肺泡巨噬细胞胞浆游离钙水平的影响  

Regulation of LPS-induced elevation of Ca^(2+) intracellular level of alveolar macrophages in chronic bronchitis by Angelica Sinensis and nifedipine

作　　者：彭则[1] 张珍祥[2] 徐永健[2] 刘卓拉[1] 宋满景[1] 

机构地区：[1]山西医科大学第二医院呼吸内科,山西太原030001 [2]同济医科大学同济医院呼吸内科,湖北武汉430030

出　　处：《中国病理生理杂志》2000年第8期738-740,共3页Chinese Journal of Pathophysiology

摘　　要：目的 :探讨当归与硝苯吡啶对慢性支气管炎 (慢支 )肺泡巨噬细胞胞浆游离钙水平的影响。方法 :对慢支缓解期患者 7例和正常对照者 6例进行支气管肺泡灌洗获得的肺泡巨噬细胞经分离、纯化后 ,加Fura- 2 /AM负载 ,以Fura - 2荧光比值法测定加当归、硝苯吡啶及LPS后胞浆游离钙的水平。结果 :慢支组肺泡巨噬细胞胞浆中基础钙水平 (189 47± 2 3 6 9)nmol/L较正常对照组 (99 6 5± 32 2 1)nmol/L明显增高 (P <0 0 1) ;LPS促进慢支组肺泡巨噬细胞包括胞内钙库释放引起的胞浆游离钙水平升高 (基础钙 189 47± 2 3 6 9nmol/L ;LPS组 2 35 5 3± 30 30nmol/L) (静息钙 2 2 8 41± 2 7 36nmol/L ;氯化钙 +LPS组 2 88 47± 43 6 8nmol/L) (P均 <0 0 1) ;当归及硝苯吡啶均抑制LPS对慢支组肺泡巨噬细胞胞浆游离钙水平的升高作用 (静息钙 2 2 8 41± 2 7 36nmol/L ;氯化钙 +当归 +LPS组 2 36 6 8± 2 8 6 0nmol/L ;氯化钙 +硝苯吡啶 +LPS组 2 5 2 6 4± 37 0 5nmol/L) (P均>0 0 5 )。结论 :当归与硝苯吡啶通过抑制慢支患者肺泡巨噬细胞胞浆游离钙水平升高 ,影响肺泡巨噬细胞的活化 。AIM: To explore regulation of lipopolysaccharide (LPS)-induced elevation of Ca 2+ intracellular level in alveolar macrophages(AMs) from patients with chronic bronchitis by Angelica Sinensis and nifedipine.METHODS:AMs was obtained from 7 patients with chronic bronchitis and 6 normal controls by bronchoalveolar lavage and intracellular Ca 2+ level was detected after adding Angelica Sinensis, nifedipine or LPS to the supernatant of AMs loaded by Fura-2. RESULTS: In contrast with normal control group (99.65±32.21 nmol/L), intracellular Ca 2+ level in AMs from chronic bronchitis group (189.47±23.69 nmol/L) was increased significantly in the absence of extracellular Ca 2+ but not 1 mmol/L. Intracellular Ca 2+ level in AMs from chronic bronchitis group were significantly increased by adding 10 μg/mL LPS to the supernatant of AMs. LPS-induced elevation of intracellular Ca 2+ level in AMs from chronic bronchitis group was completely inhibited by Angelica Sinensis or nifedipine.CONCLUSION: Both Anelica Sinensis and nifedipine may inhibit activation of AMs from patients with chronic bronchitis by reducing LPS-induced elevation of intracellular Ca 2+ level in AMs, suggested that these two medicines may inhibit non-specific inflammation of airways in chronic bronchitis.

关 键 词：当归 硝苯地平 支气管炎 巨噬细胞 钙 慢性 

分 类 号：R562.21[医药卫生—呼吸系统]