人冠状病毒 229E 寒湿疫毒袭肺证病证结合小鼠模型的建立及评价
作者:
作者单位:

中国中医科学院 中药研究所,北京 100700

中图分类号:

R-33


Establishment and evaluation on a mouse model combing disease with syndrome of hCoV-229E pneumonia with “Hanshi Yidu Xifei” syndrome
Author:
Affiliation:

Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China

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    摘要:

    目的 建立人冠状病毒 229E(hCoV-229E)寒湿疫毒袭肺证病证结合小鼠模型,观察其中医证候、疾病表现与病毒性肺炎典型临床表现的一致性,验证该模型在药效评价中的可靠性。 方法 将 BALB/ c 幼龄小鼠置于具有寒湿环境的人工气候箱中,并叠加 hCoV-229E 滴鼻感染的方法建立小鼠模型,以仅进行感染、仅置于寒湿环境、正常饲养的小鼠分别作为对照。 评价模型小鼠的中医证候相关外观行为表征,以及肺指数、肺组织中的病毒载量及活病毒存在情况、肺部组织病理学及影像学改变、血清胃肠激素水平、淋巴细胞的百分比和肺组织中的炎性细胞因子水平变化,并使用能够治疗寒湿疫毒袭肺证的复方中药“寒湿疫方”,评价该模型在药效评价中的可靠性。 结果 与正常小鼠相比,模型小鼠表现出与寒湿证以及与病毒性肺炎疾病相一致的外观和行为,包括摄食和饮水量减少、活跃程度下降、便溏、毛发油腻(P<0. 05 或 P<0. 01),以及肺部病毒核酸阳性、肺指数增加(P<0. 01)、肺及支气管组织病理学评分显著增加(P<0. 05 或 P<0. 01)、胃动素水平上升(P<0. 01)、胃泌素水平降低(P<0. 01)、外周血淋巴细胞百分比降低(P<0. 01)、炎性细胞因子水平升高(P<0. 01)。 给予复方中药后,各指标有不同程度的缓解(P<0. 05 或 P<0. 01)。 结论 本研究建立的 hCoV-229E 寒湿疫毒袭肺证病证结合小鼠模型与临床疾病表现具有一致性,为治疗该证候肺炎的药物筛选提供了一种潜在的方法。

    Abstract:

    Objective To establish a disease-syndrome combination model of human coronavirus 229E ( hCoV- 229E) pneumonia and “Hanshi Yidu Xifei” syndrome, observe the consistency of traditional Chinese medicine syndrome and the disease of the model with typical clinical manifestations of viral pneumonia, and verify the reliability of the model for pharmacodynamic evaluation. Methods Young BALB/ c mice were placed in a cold damp environment and infected with hCoV-229E to establish the mouse model. The appearance and behavior of model mice, serum gastrointestinal hormone levels, lung index, viral load in lung tissue, changes in the presence of live virus, lung histopathology and imaging, inflammatory cytokines, and lymphocytes in peripheral blood were analyzed. A Chinese herbal compound prescription for “Hanshi Yidu Xifei” syndrome was used to assess the reliability of the model for drug evaluation. Results Compared with normal mice, model mice showed the appearance and behaviors of cold-dampness syndrome, such as reduced food and water intake, loose stool and greasy hair (P<0.05 or P<0.01). An increased motilin level (P<0.01) and decreased gastrin level (P<0.01) were also found in model mice. Viral nucleic acids in lungs, an increased lung index (P<0.01), increased lung and bronchial histopathology scores (P<0.05 or P<0.01), reduced frequency of T and B lymphocytes (P<0.01), and increased levels of inflammatory cytokines (P< 0.01) were also observed, which were similar to the clinical features of coronavirus pneumonia. The prescription was effective to reverse the changes in these indicators (P< 0.05 or P<0. 01). Conclusions The disease-syndrome combination model of hCoV-229E pneumonia and “Hanshi Yidu Xifei” syndrome was established successfully and consistent with clinical manifestations. It provides a potential tool for drug screening to treat pneumonia presenting with this traditional Chinese medicine syndrome.

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耿子涵,包 蕾,郭姗姗,时宇静,鲍岩岩,赵荣华,孙 静,高英杰,崔晓兰.人冠状病毒 229E 寒湿疫毒袭肺证病证结合小鼠模型的建立及评价[J].中国比较医学杂志,2022,32(1):3~12,67.

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  • 收稿日期:2021-11-13
  • 在线发布日期: 2022-03-15
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