Fig. 8. AQP3 promoted CD133 transcription depending on STAT3 activation.
a The CD133+ cell population ratio in HCCLM3 and HUH7 cells was assessed using FACS methods. Results showed AQP3 overexpression could increase the ratio of CD133+ cell population (**P < 0.01). AG-490 could decrease the CD133 + cell proportion (**P < 0.01) and eliminate the influence of AQP3 overexpression (**P < 0.01). b AQP3 overexpression could up regulated CD133 mRNA and protein expression in HCC cells (**P < 0.01). AG-490 downregulated CD133 expression (**P < 0.01) and eliminated the influence of AQP3 overexpression (**P < 0.01). c, d AQP3 overexpression could enhanced the stemness of CD133 + HCC cells (*P < 0.05, **P < 0.01). AG-490 restrained the stemness of CD133 + HCC cells (**P < 0.01) and eliminated the influence of AQP3 overexpression (**P < 0.01). e, f CHIP assays was used to detect the CD133 promoter (p-CD133) acetylated histone H3 levels in HCCLM3 and HUH7 cells. Results showed AQP3 knockdown decreased p-CD133 acetylated histone H3 levels (**P < 0.01). g, h AQP3 overexpression increased p-CD133 acetylated histone H3 levels (**P < 0.01). AG-490 decreased p-CD133 acetylated histone H3 levels (**P < 0.01) and eliminated the influence of AQP3 overexpression (**P < 0.01)