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. Author manuscript; available in PMC: 2006 Oct 13.
Published in final edited form as: Arthritis Rheum. 1998 Aug;41(8):1398–1406. doi: 10.1002/1529-0131(199808)41:8<1398::AID-ART8>3.0.CO;2-B

Figure 2.

Figure 2

Interleukin-4 (IL-4) inhibits IL-1 induction of collagenase and stromelysin mRNA in rheumatoid arthritis synovial fibroblasts. Total RNA was isolated 6 hours after addition of 100 ng of IL-1/ml alone or in combination with 10 ng of IL-4/ml to a single culture of rheumatoid arthritis synovial fibroblasts. A Northern blot was hybridized and quantitated as described in Figure 1.