HSP90 inhibitor
compounds, including AT13387 (S1163), AUY922 (S1069), BIIB021 (S1175),
SNX5422 (S2656), and STA9090 (S1159), were purchased from Selleckchem
(Houston, TX) and stored at a stock concentration of 1 mM in DMSO.
Primary Schwann cells were treated with HSP90 inhibitors at the indicated
concentrations in complete media (see above), 24 h after seeding.
DMSO served as the vehicle control while geldanamycin (GA) was used
as a positive control for heat shock pathway activation. The DRG explant
cultures were maintained for 7 days in ascorbate-containing media
prior to treatment with either DMSO, AUY922 (100 nM), or BIIB021 (100
nM), every third day (72 h apart). Cultures were procured, 24 h after
the third treatment, for either biochemical or immunochemical analyses.15 (link)