E3泛素连接酶Nrdp1和SOCS-1对布鲁氏菌诱导细胞凋亡的影响

doi:10.16431/j.cnki.1671-7236.2016.06.001

Abstract

Abstract: In order to investigate the effect of E3 ubiquitin ligase Nrdp1 and SOCS-1 genes on apoptosis during Brucella infection macrophages.The cell models of interference and over expression of Nrdp1 and SOCS-1 genes (pLL3.7-N1,pLL3.7-S1 and pLEX-Nrdp1,pLEX-SOCS-1) were constructed.Normal RAW264.7 cell,pLL3.7-N1,pLEX-Nrdp1,pLL3.7-S1 and pLEX-SOCS-1 group cells were infected with Brucella melitensis 16M (referred to 16M),the expression of Bax,Bcl-2,TNF-α genes were detected by qRT-PCR and apoptosis rate was detected by flow cytometry.pLL3.7-N1,pLEX-Nrdp1,pLL3.7-S1,pLEX-SOCS-1 cell model of the works best of interference and overexpression Nrdp1,SOCS-1 were successfully constructed and screened.After 16M infecting each group cells,compared with the control group,the expression of Bcl-2 and Bax mRNA in pLL3.7-N1,pLEX-Nrdp1,pLL3.7-S1 and pLEX-SOCS-1 groups were significantly different in different time periods (P < 0.05).The expression of TNF-α mRNA in pLL3.7-S1 group was significantly lower (P < 0.05),while the pLEX-SOCS-1 group was significantly higher (P < 0.05).Apoptosis rates in pLEX-Nrdp1,pLEX-SOCS-1 groups were significantly higher (P < 0.05),while pLL3.7-S1 group was lower (P < 0.05).The results showed that the Nrdp1 and SOCS-1 genes were closely related to apoptosis with 16M induction,the research laid the foundation for the study of 16M intracellular parasitism mechanisms.

Key words: Brucella; Nrdp1; SOCS-1; quantitative Real-time PCR; apoptosis

CLC Number:

JIANG Ya-li, CHEN Chuang-fu, CHE Zhao-tang, WANG Zhen, LI Shuang, ZHANG Huan, ZHANG Hui, GUO Fei. Effect of E3 Ubiquitin Ligase Nrdp1 and SOCS-1 on Intracellular Survival and Macrophage Apoptosis Induced by Brucella[J]. , 2016, 43(6): 1393-1404.

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Effect of E3 Ubiquitin Ligase Nrdp1 and SOCS-1 on Intracellular Survival and Macrophage Apoptosis Induced by Brucella

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