HSP90AB1 and schwannoma: Incubation with KN62 (10 μM) for 24 h or 48 h post-intracellular delivery of NO2Hsp90 or site-specifically nitrated Hsp90 in schwannoma and normal Schwann cells, respectively, abrogated the proliferative effect in both schwannoma cells (Fig. 5C) and normal Schwann cells (Fig. 5D).