STAT3 phosphorylations regulate regeneration in vitro and in vivo. A Representative pictures, measurements of scratched area and levels of CXCL1 in supernatants of L929 cells after 6 hours of treatment with vehicle and 1 ng/ml IL-6. B Representative pictures, measurements of scratched area and levels of CXCL1 in supernatants of L929 cells after 24 hours of treatment with vehicle, 5 μM AZD1480 or 12.5 μM PD98059. C Representative pictures and quantification of regenerated area of wild type zebrafish tail fins cut at 3-dpf and treated for 2 days either with vehicle or 0.5 ng/ml IL-6. D Representative pictures and quantification of regenerated area of wild type zebrafish tail fins cut at 3-dpf and treated for 2 days either with vehicle or 200 nM LIF.E Representative pictures and quantification of regenerated area of stat3+/+,stat3+/- and stat3-/- tail fins cut at 3-dpf and analysed at 3 dpa. F Representative pictures and quantification of regenerated area of wild type zebrafish fins cut at 3-dpf and treated for 3 days either with DMSO, 50 μM AG490 or 12.5 μM PD98059. Mean ± SEM. *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001.
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