Chloroquine (Sigma-Aldrich) was
dissolved in H2O, whereas all other drugs were dissolved
in DMSO (Sigma-Aldrich). The Jumonji inhibitors used in this study
were obtained from Cayman Chemical, Ann Arbor, MI (GSK-J4, GSK-J5,
and CPI-455), Selleck Chemicals, Houston, TX (ML324), and Xcess Biosciences,
San Deigo, CA (KDM5-C70 and SD-70). JIB-04 E and Z isomers were synthesized
as previously described.23 (link) Compounds freshly
dissolved in DMSO were aliquoted to minimize freeze/thaw cycles and
stored at −20 °C.