期刊
BIOCHEMICAL PHARMACOLOGY
卷 67, 期 1, 页码 167-174出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bcp.2003.08.020
关键词
indirubin; indirubin-3 '-oxime; RANTES; p38 MAP kinase; IkB; influenza
The human bronchial epithelial cells are the primary sites of influenza virus infection. In this study, the effect of indirubin on the expression of the chemokine regulated on activation, normal T cell expressed and secreted (RANTES) by the influenza virus-infected H292 human epithelial cell line was examined. The expression of RANTES mRNA was analyzed using reverse transcription polymerase chain reaction and the concentration of RANTES production was determined by the enzyme-linked immunosorbent assay. At the noncytotoxic concentrations, indirubin was found to reduce both the expression and production of RANTES in influenza A/NWS/33-infected H292 cells. Inhibition was also observed in influenza virus B/Lee-infected cells. Significant reduction of the expression of IL-8 was not observed after the infection. Indirubin-3'-oxime, a recently developed derivative with kinase inhibitory activity, also mediates a potent inhibitory effect on the expression of RANTES. The influenza virus infection-induced phosphorylation of the nuclear transcription NF-kappaB regulatory molecule IkBalpha and the p38 MAP kinase were also found to be inhibited by indirubin-3'-oxime. This finding suggests that indirubin is one of the components in the Chinese medicinal herbs Isatis indigotica and Strobilanthes cusia with immunomodulatory activity on the expression of RANTES. (C) 2003 Elsevier Inc. All rights reserved.
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