AR and ovarian cancer: Recently, Hajiahmadi et al. demonstrated expression of all four AR subtypes in three human ovarian cancer cell lines by qRT-PCR and Western blot, in which, again, the A2BAR was the most abundant one (A2B > A2A), and NECA but not the A2AAR agonist CGS-21680, concentration-dependently induced cAMP accumulation [12].