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  • Title: The inhibition of aldose reductase on mucus production induced by interleukin-13 in the human bronchial epithelial cells.
    Author: Jiang D, Li Q, Kolosov VP, Zhou X.
    Journal: Int Immunopharmacol; 2012 Apr; 12(4):588-93. PubMed ID: 22386909.
    Abstract:
    This study investigated whether aldose reductase (AR) inhibition affects interleukin (IL)-13-induced mucus production in the human bronchial epithelial cell line-16 (HBE16) cells. The HBE16 cells were cultured with AR inhibitors (zopolrestat) or were transfected with an AR small interfering (si)RNA. Subsequently, the cells were stimulated with 10 ng/ml IL-13 for 2h. The levels of mucin (MUC)5AC mRNA and protein were measured by using RT-PCR or ELISA. Intracellular reactive oxygen species (ROS) were measured fluorimetrically with the CM-H2DCFDA probe. Western blotting was performed to determine the levels of AR, phosphorylated signal transducer and activator of transcription 6 (p-STAT6) and phosphorylated Janus kinase 2 (p-JAK2). The results show that treatment with zopolrestat or transfection with AR siRNA significantly suppressed IL-13-stimulated MUC5AC mRNA and protein in the HBE16 cells (P<0.05). AR inhibition could suppress IL-13-induced ROS generation, the phosphorylation of JAK2/STAT6 pathway and the activation of nuclear factor (NF)-kappa B, thereby decreasing mucus production in vitro (all P<0.05). Therefore, the inhibition of AR could be a therapeutic target for mucus hypersecretion in chronic inflammation lung disease.
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