复方中药提取物增强免疫力作用及初步机制研究
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1. 无限极(中国)有限公司,广州 510610; 2. 杭州环特生物科技股份有限公司,杭州 310051

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Study of the immunity-enhancing effect and mechanism of Chinese herbal compound extract
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1.Infinitus (China) Co., Ltd., Guangzhou 510610, China. 2. Hunter Biotechnol Inc., Ltd., Hangzhou 310051

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    摘要:

    目的 通过体外细胞和体内斑马鱼实验,快速评价复方中药提取物增强免疫力作用,并进行初步机制研究。 方法 在体外实验中利用 RAW 264. 7 小鼠单核巨噬细胞白血病细胞初步评价复方中药提取物的生物活性;再以酒石酸长春瑞滨诱导建立斑马鱼活体免疫低下模型,分别从斑马鱼巨噬细胞生成和吞噬功能、T 细胞生成及相关炎症、免疫基因的表达等多个方面,观察复方中药提取物的干预作用。 结果 体外实验中复方中药提取物有良好的生物安全性,其在 250 μg / mL 条件下可提高酒石酸长春瑞滨诱导后的 RAW 264. 7 小鼠单核巨噬细胞存活率。 体内研究表明,复方中药提取物在 222、667、2000 μg / mL 浓度时均可明显改善长春瑞滨诱发的斑马鱼巨噬细胞数量的减少,同时增强巨噬细胞吞噬能力;222、667 μg / mL 浓度可显著增加 T 细胞荧光强度;222、667、2000 μg / mL 浓度均可明显恢复模型对照组中 rag1、rag2 基因相对表达量被下调的情况,并均可以显著下调模型斑马鱼 TNF-α 基因相对表达量;复方中药提取物 222 μg / mL 可显著上调免疫因子 IL-12 基因表达量,在 2000 μg / mL 时显著上调 IFN-γ 基因表达量。 结论 体内、外实验表明复方中药提取物具有明显的增强免疫力作用。

    Abstract:

    Objective To quickly evaluate the immune enhancement effect of Chinese herbal compound extract (CHCe) and study the potential mechanism using in vitro cell and in vivo zebrafish models. Methods In the in vitro experiments, RAW 264. 7 mouse mononuclear macrophage cells were treated with vinorelbine tartrate, and the protective effect of CHCe on vinorelbine tartrate-induced toxicity was evaluated. The zebrafish immunocompromised model was established using vinorelbine tartrate. The number of macrophages and their phagocytic function, the number of T- lymphocytes, and the expression of inflammation- and immune-related genes in zebrafish were used to observe the effects of CHCe in the zebrafish immunocompromised model. Results The result showed that CHCe had good biosafety and increased the survival rate of RAW 264. 7 cells treated with 250 μg / mL vinorelbine tartrate. In vivo studies showed that 222, 667 and 2000 μg / mL CHCe significantly inhibited the reduction of macrophages induced by vinorelbine and enhanced the phagocytic ability of macrophages. Both 222 and 667 μg / mL CHCe significantly increased the number of T- lymphocytes, and 222, 667 and 2000 μg / mL CHCe significantly restored the down-regulation of rag1 and rag2 genes in the model group, and down-regulated the expression of tumor necrosis factor-α. A dose of 222 μg / mL CHCe up-regulated the relative expression level of interleukin-12, and 2000 μg / mL CHCe up-regulated the relative expression level of interferon-γ. Conclusions In vivo and in vitro experiments showed that CHCe had a marked immunity enhancement effect.

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王涛,戴明珠,李延川,彭逸,李春启.复方中药提取物增强免疫力作用及初步机制研究[J].中国实验动物学报,2022,30(2):198~207.

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  • 收稿日期:2021-07-06
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  • 在线发布日期: 2022-06-27
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