PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18687064-4 2008 Using the inducible expression of sphingosine kinase 1 and 2 in HEK293 cells as model systems, we found this ARE approach to be remarkably successful in ablating expression of these proteins in the absence of doxycycline through decreasing stability of their mRNAs. Doxycycline 209-220 sphingosine kinase 1 Homo sapiens 34-60