FK506 and geldanamycin promote nerve regeneration by a common mechanism that involves the binding of these compounds to polypeptide components of steroid receptor complexes other than the steroid hormone binding portion of the complex (FKBPS52 and hsp90, respectively). These and other agents cause hsp90...http://www.google.com/patents/US6641810?utm_source=gb-gplus-sharePatent US6641810 - Methods of using geldanamycin and FK506 to treat peripheral nerve damage