- The mitogen-activated protein kinase/extracellular signal-regulated kinase kinase inhibitor PD184352 (CI-1040) selectively induces apoptosis in malignant schwannoma cell lines. Mattingly, R.R., Kraniak, J.M., Dilworth, J.T., Mathieu, P., Bealmear, B., Nowak, J.E., Benjamins, J.A., Tainsky, M.A., Reiners, J.J. J. Pharmacol. Exp. Ther. (2006)