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重组干扰素-γ对哮喘患者外周血单个核细胞IL-8和IL-10的作用研究

重组干扰素-γ对哮喘患者外周血单个核细胞IL-8和IL-10的作用研究

免疫学杂志 2001年第1期第17卷 临床免疫学

作者:高燕 陈萍 孙丽 赵海涛

单位:沈阳军区总医院呼吸内科,辽宁 沈阳 110015

关键词:rIFN-γ;PBMC;IL-8;IL-10;ECP;哮喘

  摘 要:目的 研究重组干扰素-γ对哮喘患者体外单个核细胞IL-8和IL-10释放的影响以及与血清ECP水平的关系。方法 取哮喘患者8例、正常5例的外周静脉血,分离单个核细胞培养,66h后将哮喘患者的PBMC上清液分为重组干扰素-γ干预组、氟美松干预组、未加干预物组,72h收集上清液测定IL-8和IL-10的浓度。同时留取血清测ECP。结果 哮喘者血清ECP值与PBMC培养细胞上清液中IL-8值呈显著正相关(r=0.701),与IL-10值呈显著负相关(r=0.638)。哮喘患者血清中ECP和PBMC上清液IL-8和IL-10浓度与正常相比有显著性差异(P<0.05)。rIFN-γ干预后PBMC上清中IL-8较未干预组显著下降(P<0.05),而IL-10显著增高(P<0.05);氟美松干预组则无明显差异性。结论 rIFN-γ通过降低IL-8水平,发挥抗炎作用。IL-10有广泛抑制作用,可抑制抗原刺激引起的炎性细胞增殖、活化和有促炎作用的细胞因子及某些介质合成,抑制B细胞分泌IgE,rIFN-γ促进IL-10合成分泌,从而增加其抗炎作用。

  分类号:R562.2+5 文献标识码:A

  文章编号:1000-8861(2001)01-0050-03

Effect of recombinant interferon-γ(rIFN-γ)on IL-8 and IL-10 released by peripheral blood mononuclear cells(PBMC)in asthmatic patients

GAO Yan(Department of Respiratory Deseases,General Hospital of the Shenyang Military Region,Shenyang 110015,China)

  CHEN Ping(Department of Respiratory Deseases,General Hospital of the Shenyang Military Region,Shenyang 110015,China)

  SUN Li(Department of Respiratory Deseases,General Hospital of the Shenyang Military Region,Shenyang 110015,China)

  ZHAO Hai-tao(Department of Respiratory Deseases,General Hospital of the Shenyang Military Region,Shenyang 110015,China)

  Abstract:Objective To study the effect of (rIFN-γ)on IL-8 and IL-10 release in asthmatic patients PBMC and its relationship with serum level of ECP.Methods Samples of PBMC obtained from 8 cases of asthmatic patients and five cases of normal persons were cultured in RPMI 1640 containing 10% bovine serum.After 66 hours,the supernatants of cultured PBMC of asthmatic patients were divided into three groups:group A (rIFN-γ),group B (Dexamethasone)and group C (control group).Concentration of IL-8 and IL-10 in the supernatant in the three groups was determined after 72 hours.Serum ECP levels were also determined.Results The serum ECP level was positively and signifocantly correlated with content of IL-8 in the supernatant (r=0.701)and negatively correlated With that of IL-10(r=0.638).There was significant difference between the serum ECP level and the IL-8 and IL-10 concentration in supernatants of cultured PBMC (P<0.05).After rIFN-γ intervention ,the IL-8 level decreased significantly (P<0.05)and the IL-10 increased singificantly(P<0.05)than that of control group.There was no significant difference after dexamethasone intervention.Conclusion rIFN-γ may decrease the level of IL-8 which had anti-inflammation effects.IL-10 may inhibit the proliferation and differentiation of inflammatory cells caused by antigen stimulation and may inhibit the synthesis of cytokines and inflammatory mediators and also inhibit B cells to secret IgE.rIFN-γ can promote the synthesis and secretion of IL-10 which can increase its anti-inflammatory function.

  Keywords:rIFN-γ; PBMC; IL-8; IL-10; ECP; asthma基金项目:辽宁省自然科学基金资助项目(972153)

  作者简介:高燕(1958-),女,陕西武功县,副主任医师,硕士,主要从事重组干扰素-γ和/或IL-4单抗在哮喘防治中的作用研究。 Tel:(024)23051161参考文献:

  [1]高 燕,陈 萍,林小平,等.重组干扰素-γ雾化吸入抑制嗜酸细胞肺内募集的实验研究[J].中华结核和呼吸杂志,1997,20(5):287-289.

  [2]中华医学会呼吸分会.支气管哮喘防治指南[J].中华结核和呼吸杂志,1997,20(5):261-263.

  [3]Nocker RE,Schooubrood DF,Vdn de Graaf EA, et al.Interleukin-8 in airway inflammation in patients with asthma and chronic obstructive pulmonary disease[J].Int Arch Allergy Immunol,1996,109(2):183-191.

  [4]Kurashima K,Mukaida N,Fujimura M, et al.Increase of chemokine levels in sputum precedes exacerbation of acute asthma attacks [J].Leukem Biol,1996,59(3):313-317.

  [5]Teran LM,Carroll M,Frew AJ, et al.Neutrophil influx and interleukin-8 release after segmental allergen or saline challenge in asthmatics [J].Int Arch Allergy Immunol,1995,107(1-3):374-375.

  [6]Hallsworth MP,Soh CP,Lane SJ,et al.Selective enhancement of GM-CSF,TNF-alpha,IL-1 beta and IL-8 production by monocytes and macrophages of asthmatic subjects [J].Eur Respir J, 1994,7(6):1 096-1 102.

  [7]Borish L,Aarons A,Rumbyrt J, et al.Interleukin-10 regulation in normal subjects and patients with asthma [J].J Allergy Clin Immunol, 1996,97(6):1 288-1 296.

  [8]Simon HU,Yousefi S,Weber M, et al.Human peripheral blood eoflinophils express and release IL-8[J]. Int Arch Allergy Immunol,1995,107(1-3):124-126.

  [9]Boguniewicz M,Martin RJ,Martin D,et al.The effects of nedulized recombinant interferon-γ in asthmatic airways[J]. J Allergy Clin Immunol,1995,95(1 pt1):133-135.

收稿日期:1999年11月25日

修稿日期:2000年5月23日

出版日期:2001年1月15日


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