SGPP1 and lymphoma: To investigate the role of Sgpp1 as a direct mediator of glucocorticoid‐mediated apoptosis we used a short hairpin (sh) RNA to knock down expression of Sgpp1 in p/m97 thymic lymphoma cells which displayed the most dramatic induction of Sgpp1 in response to dexamethasone (Fig. 3C—black bar vs. hashed black bar).