›› 2016, Vol. 43 ›› Issue (11): 2803-2810.doi: 10.16431/j.cnki.1671-7236.2016.11.001

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Study on the Effect of Ricin on Human Peripheral Blood B Lymphocyte and the Expression of Related Genes

ZHEN Er-dong, HUANG Su-juan, HUA Chao-ju, TAO Cong, YANG Shu-lin, WANG Yan-fang, ZHOU Rong, AO Hong, LI Kui   

  1. Key Laboratory of Farm Animal Genetic Resources and Germplam Innovation, Ministry of Agriculture, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2016-04-25 Online:2016-11-20 Published:2016-11-18

Abstract:

This study was amied to learn the toxic effects of ricin on human peripheral blood B lymphocytes(IM-9)and the expression of related genes.The extracted ricin of different concentrations were added to culture cells for 6 and 12 h to make sure the median inhibitory concentration,then culture cells at the median inhibitory concentration for 2,6,10 and 12 h,at each time point detect the expression of immune related genes CD40,IL-1β,TNF-α and apoptosis related genes Bcl-2,Bax,Caspase-3.The results showed that the inhibitory effect of ricin on IM-9 cells was increased with the increase of concentration and time.The expression of TNF-α and CD40 genes increased significantly in experimental group than control group at 6 h(P<0.05).10 and 12 h reached extremely significant level(P<0.01);There was no significance of IL-1β gene expression between experimental and control groups(P>0.05).About apoptosis gene,the Bax gene expression decreased extremely significantly in experimental group at 10 h(P<0.05)and decreased significantly at 12 h(P<0.05);Bcl-2 gene had reached significant levels of four time periods(P<0.05), and 2,12 h were extremely significant(P<0.01);The expression of Caspase-3 reduced at 6 h,the other time points increased significantly(P<0.05),at 2 h reached extremely significant level(P<0.01).It showed that the gene expression of IM-9 cells could be significantly affected by ricin,TNF-α and CD40 genes were two potential genes to evaluate the toxicity by IM-9 cells.

Key words: ricin; peripheral blood B lymphocyte; gene expression

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