| Literature DB >> 8484092 |
A Bendrups1, A Hilton, A Meager, J A Hamilton.
Abstract
The effects of recombinant human interleukin-4 (IL-4) and the glucocorticoid, dexamethasone, on tumor necrosis factor alpha (TNF alpha) and interleukin-1 beta (IL-1 beta) levels in cultures of rheumatoid and osteoarthritic synovial tissue were studied. Low concentrations of IL-4 and dexamethasone suppressed the levels of both cytokines in the supernatants of both types of tissue after stimulation with lipopolysaccharide (LPS); the IL-1 beta and TNF alpha levels were measured by ELISA. It is suggested that it is the monocyte/macrophage in the synovial tissues that is responsive to the inhibitors. It is proposed that glucocorticoids may act on synovial tissue in this manner in vivo and IL-4 may do so if administered intraarticularly.Entities:
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Year: 1993 PMID: 8484092 DOI: 10.1007/bf00301004
Source DB: PubMed Journal: Rheumatol Int ISSN: 0172-8172 Impact factor: 2.631