BRD4 is upregulated in thyroid cancer tissues and cell lines.
Inhibition of BRD4 induced cell cycle arrest and enhanced radioiodine uptake in vitro and impaired tumor growth in vivo.
JQ1 suppressed the expression of C-MYC and promoted the expression of NIS and P21.
JQ1 attenuated the recruitment of BRD4 to MYC promoter in thyroid cancer.