Figure 1. Modulation of vascular flow affects HSC formation in zebrafish.
(A-M) Effect of blood flow modifiers on runx1/cmyb+ HSC formation. Zebrafish were exposed to chemicals (10 μM) from 10 somites to 36hpf and subjected to runx1/cmyb in situ hybridization. Photomicrographs were taken with Nomarski optics at 40× magnification. Representative examples following drug treatment are shown.
(L) Effect of todralazine (10 μM; 67 inc/84).
(M) Effect of drug treatment on runx1 expression, quantified by qPCR.
(N) Effect of drug treatment on the diameter of the dorsal aorta in vivo. Transgenic fli:GFP fish were treated with chemicals and imaged by confocal microscopy at 36hpf; all treatments were statistically significant from control, ANOVA, p<0.001, n=5).