Significance of multidrug resistance associated protein 1 and protein 2 expressions in peripheral blood mononuclear cells in children with intractable epilepsy

Abstract

Objective To study the expression of multidrug resistance associated protein 1 (MRP1) and MRP2 in the peripheral blood mononuclear cells of children with intractable epilepsy (IE). Methods During Nov.2010 to Oct.2013, 50 children with IE were collected as the experimental group, simultaneously 50 children with epilepsy controlled by the anti-epileptic drugs (AEDs) and 50 healthy children without epilepsy were collected as the control group from the outpatient or inpatient of Xuzhou Children's Hospital. The expressions of MRP1 and MRP2 in the peripheral blood mononuclear cells of children were detected by reverse transcriptase polymerase chain reaction and Wes-tern blot. Results 1.The mean relative expression of MRP1 and MRP2 mRNA in the peripheral blood mononuclear cells of children with IE (0.795±0.042, 0.804±0.023) were higher than those in epilepsy controlled by AEDs (0.682±0.030, 0.675±0.021)and healthy children without epilepsy (0.665±0.031, 0.654±0.029) (all P 0.05). Conclusions MRP1 and MRP2 over-expression in the peripheral blood mononuclear cells of children with IE may be associated with drug-resistance mechanism for medically intractable epilepsy. Key words: Intractable epilepsy; Multidrug resistant associated protein; Peripheral blood mononuclear cell; Child