PMID: 20627039Jul 16, 2010Paper

Expression of interleukin-18 and interleukin-18 receptor alpha chain of the peripheral white blood cells in immune thrombocytopenia

Zhonghua nei ke za zhi
Qian WangChun-yan Ji

Abstract

To detect the expression of interleukin (IL)-18 of the peripheral blood cells and IL-18 receptor alpha chain (IL-18Ralpha) on the surface of CD(3)(+) cells in patients newly diagnosed as immune thrombocytopenia (ITP) before medication and to explore the roles of IL-18 and IL-18Ralpha in the development of ITP. Eighteen out-patients or inpatients with acute ITP accepting treatment in Qilu Hospital were enrolled in this study and 15 matching healthy subjects were taken as control. Plasma IL-18 level was detected with enzyme linked immunosorbent assay (ELISA), the expression of IL-18Ralpha on CD(3)(+) lymphocytes and total lymphocytes were measured with flow cytometry;T-bet and GATA-3 mRNA were measured with reverse transcriptase polymerase chain reaction (RT-PCR). The expression of IL-18 in acute ITP plasma was (468.57 + or - 141.62) ng/L and IL-18Ralpha on the surface of CD(3)(+) cells and lymphocytes were (8.50 + or - 3.16)% and (9.16 + or - 2.98)% respectively. The levels of IL-18 and IL-18Ralpha were increased in active ITP patients as compared with those in the controls (P < 0.05). The levels of IL-18 mRNA (0.12 + or - 0.02) and T-bet mRNA (0.07 + or - 0.02) were significantly increased in patients with active ITP as compare...Continue Reading

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