RARRES2 and ovarian cancer: The employed ovarian cancer cell lines were shown to express similar protein levels of chemerin receptor CMKLR1, but they differed in protein expression of GPR1, with the highest levels in OVCAR-3 cells, moderate levels in SK-OV-3 cells and nearly absent expression in OAW-42 cells, suggesting this difference to be one reason for the cell-line specific chemerin sensitivity in terms of growth reduction.