摘要
目的探讨去甲肾上腺素对人THP-1源性巨噬细胞转化生长因子β1表达的影响。方法不同浓度的去甲肾上腺素(10pmol/L~10μmol/L)作用THP-1源性巨噬细胞24h,运用逆转录多聚酶链反应检测转化生长因子β1mRNA的表达,酶联免疫吸附试验检测转化生长因子β1蛋白的表达。结果100nmol/L、1μmol/L及10μmol/L去甲肾上腺素引起巨噬细胞中转化生长因子β1mRNA水平分别下降9.3%(P<0.05)、39.5%(P<0.01)和47.8%(P<0.01),1μmol/L及10μmol/L的去甲肾上腺素作用于THP-1巨噬细胞其细胞上清中转化生长因子β1蛋白含量分别下降24.7%(P<0.01)和32.8%(P<0.01)。结论应激浓度的去甲肾上腺素能降低THP-1源性巨噬细胞转化生长因子β1基因的表达。
Aim To investigate the effects of noradrenalin on the expressions of transforming growth factor (TGF-)β1 in human THP-1 macrophage cells. Methods THP-1 macrophage cells were incubated with different concentrations of noradrenalin (10 pmol/L - 10μmol/L) for24 honr. Then the mRNA levels of TGF-? 1 were determined by reverse transcription polymerase chain reaction (RT-PCR). Levels of TGF-β1 in the supernatants of cells were determined by enzyme-linked immunosorbent assay (ELISA). Results THP-1 macrophage ceUs which treated with 100 nmol/L,1 μmol/L and 10 μmol/L noradrenalin, the mRNA levels of TGF-β1 decreased 9.3% (P〈0.05), 39.5% (P〈0.01) and 47.8% (P〈0.01) respectively. THP-1 macrophage cells which treated with 1 μmol/L and 10 μmol/L noradrenalin,the protein levels of TGF-β1 decreased 24.7% ( P 〈 0.01 ) and 32.8 % ( P 〈 0.01 ) respectively. Conclusion Stress induced increase of noradrenalin concentrations cause TGF-β1 expression decreased in human THP-1 macrophage cells.
出处
《中国动脉硬化杂志》
CAS
CSCD
2007年第2期90-92,共3页
Chinese Journal of Arteriosclerosis
基金
湖南省自然科学基金(03JJY5016)
湖南省卫生厅课题(B2004-076)
湖南省教育厅课题(04C542)