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QUERCETIN INHIBITS TNFα INDUCED ENDOTHELIAL-NEUTROPHIL ADHESION
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- Author:
- No author available
- Journal Title:
- ACTA PHARMACEUTICA SINICA
- Issue:
- 7
- DOI:
- 10.3321/j.issn:0513-4870.1999.07.003
- Key Word:
- 槲皮素;内皮细胞;中性粒细胞
Abstract： 目的:研究槲皮素对TNFα诱导的内皮细胞与中性粒细胞粘附的抑制作用及作用机制.方法:用髓过氧化酶法测定中性粒细胞与内皮细胞的粘附,ELISA法测定内皮细胞粘附分子的表达. 结果:TNFα通过增加/诱导内皮细胞ICAM-1, VCAM-1及E-selectin的表达而剂量、时间依赖性地增加内皮细胞与中性粒细胞的粘附.槲皮素可剂量依赖性地抑制上述粘附,其作用机制为抑制TNFα诱导内皮细胞上述3种粘附分子的表达.结论:槲皮素通过抑制ICAM-1, VCAM-1及E-selectin的表达而降低TNFα诱导的内皮细胞与中性粒细胞的粘附.
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