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. 2016 Feb 12;6:20547. doi: 10.1038/srep20547

Figure 7. Proposed schematic model.

Figure 7

(A) The profibrotic cytokines TGFβ1 and TNFα can induce WISP1 presumably via NF-κB in phLFs, which results in WISP1-dependent IL-6 production and increased proliferation of phLFs. (B) In the absence of WISP1, decreased IL-6 levels lead to reduced fibroblast proliferation. Our working hypothesis is that WISP1 controls IL-6 expression via a positive feedback on NF-κB.