ADIPOR1 and breast cancer: With regard to the expression of AdipoR1 and AdipoR2 mRNA in HCC1937 breast cancer cells, as in the case of MCF-7 cells, the expression of AdipoR2 mRNA (1.336 ± 0.905) was greater than the expression of AdipoR1 (1.181 ± 0.67).