Discrepancy in SATB1 expression reflects the heterogeneity in cutaneous T cell lymphoma

SATB1 is an important T-cell specific chromatin organizer in cutaneous T cell lymphoma, while its expression and function in Mycosis fungoides (MF) remain ambiguous. RNA-sequencing was conducted to investigate the genes regulated by SATB1 in MF-derived MJ cells by RNA-sequencing after SATB1-knockdown. With the criteria of P<0.05 and |fold change|>1.3, there were 988 genes upregulated and 1373 genes downregulated in SATB1-silencing MJ cells and further subjected to KEGG analysis. SATB1 silencing in MJ cells showed that SATB1 upregulated genes involved in eosinophil recruitment, including STAT3 and IL13, and downregulated genes in cell cycle progression. Gene expression was compared between MJ cells transfected with SATB1-shRNAs and scrambled shRNA to investigate genes regulated by SATB1 in MJ cells.