A. Silencing ARSB significantly reduced the expression of BMP4 in the NCM460 cells (p<0.001, one-way ANOVA with Tukey-Kramer post-test; n=6).
B. Similarly, in HT-29 cells, the BMP4 expression was markedly reduced when ARSB was silenced cells (p<0.001, one-way ANOVA with Tukey-Kramer post-test; n=6).
C. In the ARSB null mice, BMP4 mRNA was significantly less than in the control wild-type mice (p=0.011 for female mice, p=0.0341 for male mice; unpaired t-test, two-tailed; n=6).
[ARSB=arylsulfatase B; BMP4=bone morphogenetic protein; F=female; M=male; si-=small interfering siRNA]