Title : Prednisolone induces interleukin-18 expression in mononuclear blood and myeloid progenitor cells.

Pub. Date : 2002 Sep

PMID : 12365719






7 Functional Relationships(s)
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1 Prednisolone induces interleukin-18 expression in mononuclear blood and myeloid progenitor cells. Prednisolone interleukin 18 Homo sapiens
2 METHODS: IL-18 transcript and protein levels in PBMC from untreated and prednisolone treated RA patients, and from healthy donors were assessed by semiquantitative reverse transcriptase polymerase chain reaction (RT-PCR) and immunoblotting. Prednisolone interleukin 18 Homo sapiens
3 IL-18 regulation was determined in PBMC and U937 cells upon exposure to prednisolone in vitro by RT-PCR and Northern Blot analysis, by ELISA in cell culture supernatants, and in transiently transfected THP-1 cells by IL-18 promoter activity luciferase assays. Prednisolone interleukin 18 Homo sapiens
4 RESULTS: In RA PBMC, IL-18 transcript levels were dose dependently restored, in parallel with administered prednisolone treatment, to subnormal levels. Prednisolone interleukin 18 Homo sapiens
5 In cultured PBMC and promonocytic cell lines, prednisolone up-regulated IL-18 transcription in parallel with increasing the IL- 18 protein release into cell culture supernatants. Prednisolone interleukin 18 Homo sapiens
6 In cultured PBMC and promonocytic cell lines, prednisolone up-regulated IL-18 transcription in parallel with increasing the IL- 18 protein release into cell culture supernatants. Prednisolone interleukin 18 Homo sapiens
7 CONCLUSION: Prednisolone increases IL-18 expression and release in PBMC and monocytic cell lines. Prednisolone interleukin 18 Homo sapiens