instruction:
In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.
question:
 In this study , we examined whether PPARgamma ligand regulates osteopontin gene expression in THP - 1 cells , a cell line derived from human monocytic leukemia cells which can differentiate to macrophage upon stimulation with phorbol ester PMA .
answer:
PPARgamma ligand


question:
 Number of glucocorticoid receptors in lymphocytes and their sensitivity to hormone action .
answer:
glucocorticoid receptors


question:
 The order of potency observed with the different steroids indicated that this inhibitory effect was mediated through binding to a specific glucocorticoid receptor .
answer:

glucocorticoid receptor