鹿角脱盘对辐射诱发小鼠胸腺淋巴瘤Notch2基因表达和免疫功能的影响

doi:10.13481/j.1671-587x.20160509

Abstract

Abstract:

Objective: To investigate the effect of antlerbase on the radiation carcinogenesis by observing the effect of antlerbase on the expressions of Notch2 gene and immune function of the mice with thymic lymphomas induced by ionizing radiation. Methods: Ninety BALB/c mice were randomly divided into control group,irradiation group and irradiation combined with drug group(combined group)(n=30). The thymic lymphoma models of mice were made by X-ray irradiation in irradiation group and combined group; after establishing the animal models, the mice in combined group were fed with chow containing antlerbase superfine powder. After 6 months, the whole blood and thymic tissue were taken, then RT-PCR and Western blotting methods were used to detect the mRNA and protein expressions levels of Notch2 gene in the thymic lymphoma tissue; ELISA method was used to detect the serum immunoglobulin(IgG, IgA, IgM)levels and SOD kit was used to detect the serum SOD activities of the tumor mice. Results: The incidences of thymic lymphoma in irradiation group and combined group were 53.33%(16/30)and 36.67%(11/30),respectively.Compared with control group,the expression levels of mRNA and protein of Notch2 gene in thymic lymphoma of the mice in irradiation group were significantly increased(P<0.05);compared with irradiation group,the expression levels of mRNA and protein of Notch2 gene in combined group were decreased(P<0.05);compared with control group,the levels of IgG, IgA, and IgM in serum of the mice in irradiation group were decreased(P<0.05);compared with irradiation group,the levels of IgG, IgM,hemoglobin and the activity of SOD in serum of the mice in combined group were increased(P<0.05). Conclusion: Ionizing radiation can activate the high expression of Notch2 gene and protein and decrease the immune function of mice, it might be one of the mechanisms for the occurrence of radiation carcinogenesis; antlerbase can decrease the incidence of radiation carcinogenesis by inhibiting the expression of Notch2 gene and increasing the immune function of mice, which might play an role in restraining tumor.

Key words: thymic lymphomas, Notch2 gene, antlerbase, ionizing radiation

CLC Number:

Q345

YU Lei, WANG Yunlong, CHEN Zhishen, WANG Xinchun, GAO Yugang, JIA Xiaojing. Influence of antlerbase on Notch2 gene expression and immune functionof mice with thymic lymphomas induced by ionizing radiation[J].Journal of Jilin University Medicine Edition, 2016, 42(05): 887-891.

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Influence of antlerbase on Notch2 gene expression and immune functionof mice with thymic lymphomas induced by ionizing radiation

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