检验医学 ›› 2018, Vol. 33 ›› Issue (1): 67-71.DOI: 10.3969/j.issn.1673-8640.2018.01.013

• 基础研究·论著 • 上一篇    下一篇

Del-1对特异性过敏患儿嗜酸性粒细胞表面ICAM-1表达的影响

阎淑, 张泓   

  1. 上海交通大学附属儿童医院检验科,上海 200040
  • 收稿日期:2017-04-25 发布日期:2021-03-18
  • 作者简介:null

    作者简介:阎 淑,女,1981年生,硕士,主管技师,主要从事特异性过敏性炎症研究。

  • 基金资助:
    上海市卫生计生委青年科研项目( 20134Y040);上海市卫生计生系统重要薄弱学科建设项目(2015ZB0203)

Influence of Del-1 on ICAM-1 expression of eosinophils in atopic allergy children

YAN Shu, ZHANG Hong   

  1. Department of Clinical Laboratory,Children's Hospital of Shanghai Jiaotong University,Shanghai 200040,China
  • Received:2017-04-25 Published:2021-03-18

摘要:

目的 研究发育内皮基因1(Del-1)对特异性过敏患儿嗜酸性粒细胞上细胞间黏附分子1(ICAM-1)表达的影响,并初步探讨其意义。方法 收集35例特异性过敏患儿外周血标本,利用磁珠分选(MACS)方法分选嗜酸性粒细胞,用Del-1、抗Del-1抗体或白细胞介素17(IL-17)处理,用逆转录聚合酶链反应(PCR)检测ICAM-1的表达,并进行统计学分析。结果 与对照组比较,Del-1处理组ICAM-1表达水平下降(P<0.05),抗Del-1抗体处理组ICAM-1表达水平上升(P<0.05);Del-1与IL-17共同处理组ICAM-1表达水平较单独IL-17处理组下降(P<0.05);但在非嗜酸性粒细胞中,Del-1或抗Del-1抗体处理组ICAM-1表达水平较对照组[用磷酸盐缓冲液(PBS)处理]差异无统计学意义(P>0.05)。结论 Del-1可调节嗜酸性粒细胞表面的ICAM-1表达,提示Del-1可能通过抑制嗜酸性粒细胞的黏附作用抑制特异性过敏炎症。

关键词: 发育内皮基因1, 细胞间黏附分子1, 白细胞介素17, 特异性过敏

Abstract:

Objective To evaluate the influence of developmental endothelial locus-1 (Del-1) on intercellular cell adhesion molecule-1 (ICAM-1)expression of eosinophils in atopic allergy children.Methods Peripheral blood samples were collected from atopic allergy children (35 cases),and eosinophils were isolated by magnetic-activated cell sorting (MACS). ICAM-1 expression was determined by reverse transcription polymerase chain reaction (PCR) after administrating Del-1,anti-Del-1 antibody or interleukin 17 (IL-17). Results Compared with control group treated with phosphate-buffered saline (PBS),ICAM-1 expression was down-regulated after administrating Del-1(P<0.05),and it was up-regulated after administrating anti-Del-1 antibody (P<0.05). ICAM-1 expression was down-regulated after administrating Del-1 and IL-17 compared with that after administrating IL-17 only (P<0.05). There was no statistical significance in non-eosinophils after administrating Del-1 or anti-Del-1 antibody (P>0.05).Conclusions Del-1 can regulate the expression of ICAM-1,indicating that Del-1 can negatively regulate the intercellular adhesion of eosinophils,thereby limiting atopic allergy of children.

Key words: Developmental endothelial locus-1, Intercellular cell adhesion molecule-1, Interleukin 17, Atopic allergy

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