RNA interference against interleukin-5 attenuates airway inflammation and hyperresponsiveness in an asthma model

RNA interference against interleukin-5 attenuates airway inflammation and hyperresponsiveness in an asthma model
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RNA 干扰白细胞介素 5 可减轻哮喘模型中的气道炎症和高反应性

DOI:
10.1631/jzus.b0820226
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发表时间:
2009-01
期刊:
Journal of Zhejiang University SCIENCE B
影响因子:
--
通讯作者:
--
中科院分区:
其他
文献类型:
--
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白细胞介素-5(IL-5)通过激活嗜酸性粒细胞伴随气道炎症和高反应性的发展。因此,干预肺组织中IL-5的表达似乎是哮喘治疗中可接受的方法。在本研究中,我们设计了一种小干扰RNA(siRNA)来抑制IL-5的表达。在慢病毒表达系统中构建针对IL-5的siRNA,并将1.5×106 IFU(inclusion-forming unit)慢病毒注入卵清蛋白(OVA)致敏的小鼠哮喘模型。我们的研究结果表明,慢病毒递送的针对IL-5的siRNA有效地抑制了IL-5信使核糖核酸(mRNA)的表达,并显着减轻了肺组织中的炎症。外周血、支气管肺泡灌洗液(BALF)和肺组织中嗜酸性粒细胞和炎性细胞明显减少。此外,在用针对IL-5的siRNA处理的小鼠中发现了对气道高反应性(AHR)的显著抑制。这些观察结果表明,通过慢病毒系统递送的siRNA可能是哮喘的有效治疗方法。
Interleukin-5 (IL-5) accompanies the development of airway inflammation and hyperresponsiveness through the activation of eosinophils. Therefore, interference of IL-5 expression in lung tissue seems to be an accepted approach in asthma therapy. In this study, we designed a small interfering RNA (siRNA) to inhibit the expression of IL-5. The siRNAs against IL-5 were constructed in a lentivirus expressing system, and 1.5×106 IFU (inclusion-forming unit) lentiviruses were administered intratracheally to ovalbumin (OVA)-sensitized murine asthmatic models. Our results show that lentivirus-delivered siRNA against IL-5 efficiently inhibited the IL-5 messenger ribonucleic acid (mRNA) expression and significantly attenuated the inflammation in lung tissue. Significant decrease of eosinophils and inflammatory cells were found in peripheral blood, bronchoalveolar lavage fluid (BALF), and lung tissue. In addition, significant inhibition of airway hyperresponsiveness (AHR) was found in the mice treated with siRNA against IL-5. These observations demonstrate that siRNA delivered by means of the lentivirus system is possibly an efficacious therapeutic approach for asthma.
DOI: 10.1164/ajrccm/146.2.500
发表时间: 1992-08-01
期刊: AMERICAN REVIEW OF RESPIRATORY DISEASE
影响因子: --
作者:
BENTLEY, AM;MENZ, G;KAY, AB
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DOI: 10.1016/0091-6749(89)90391-6
发表时间: 1989-12-01
影响因子: 14.2
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DURHAM, SR;LOEGERING, DA;KAY, AB
通讯作者: KAY, AB
DOI: 10.1164/ajrccm.156.3.9606031
发表时间: 1997-09-01
影响因子: 24.7
作者:
Hamelmann, E;Schwarze, J;Gelfand, EW
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DOI: 10.1182/blood.v79.12.3101.bloodjournal79123101
发表时间: 1992-06
期刊: Blood
影响因子: 20.3
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C. Sanderson
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