Publications [#132170] of James M Provenzale

Papers Published

1. HS Friedman, RE McLendon, T Kerby, M Dugan, SH Bigner, AJ Henry, DM Ashley, J Krischer, S Lovell, K Rasheed, F Marchev, AJ Seman, I Cokgor, J Rich, E Stewart, OM Colvin, JM Provenzale, DD Bigner, MM Haglund, AH Friedman, PL Modrich, DNA mismatch repair and O6-alkylguanine-DNA alkyltransferase analysis and response to Temodal in newly diagnosed malignant glioma., Journal of clinical oncology : official journal of the American Society of Clinical Oncology, vol. 16 no. 12 (December, 1998), pp. 3851-7, ISSN 0732-183X
   (last updated on 2011/07/12)

   Abstract:
   OBJECTIVE: We evaluated the response to Temodal (Schering-Plough Research Institute, Kenilworth, NJ) of patients with newly diagnosed malignant glioma, as well as the predictive value of quantifying tumor DNA mismatch repair activity and O6-alkylguanine-DNA alkyltransferase (AGT). METHODS: Thirty-three patients with newly diagnosed glioblastoma multiforme (GBM) and five patients with newly diagnosed anaplastic astrocytoma (AA) were treated with Temodal at a starting dose of 200 mg/m2 daily for 5 consecutive days with repeat dosing every 28 days after the first daily dose. Immunochemistry for the detection of the human DNA mismatch repair proteins MSH2 and MLH1 and the DNA repair protein AGT was performed with monoclonal antibodies and characterized with respect to percent positive staining. RESULTS: Of the 33 patients with GBM, complete responses (CRs) occurred in three patients, partial responses (PRs) occurred in 14 patients, stable disease (SD) was seen in four patients, and 12 patients developed progressive disease (PD). Toxicity included infrequent grades 3 and 4 myelosuppression, constipation, nausea, and headache. Thirty tumors showed greater than 60% cells that stained for MSH2 and MLH1, with three CRs, 12 PRs, three SDs, and 12 PDs. Eight tumors showed 60% or less cells that stained with antibodies to MSH2 and/or MLH1, with 3 PRs, 3 SDs, and 2 PDs. Eleven tumors showed 20% or greater cells that stained with an antibody to AGT, with 1 PR, 2 SDs, and 8 PDs. Twenty-five tumors showed less than 20% cells that stained for AGT, with 3 CRs, 12 PRs, 4 SDs, and 6 PDs. CONCLUSIONS: These results suggest that Temodal has activity against newly diagnosed GBM and AA and warrants continued evaluation of this agent. Furthermore, pretherapy analysis of tumor DNA mismatch repair and, particularly, AGT protein expression may identify patients in whom tumors are resistant to Temodal.

   Keywords:
   Adult • Aged • Antineoplastic Agents, Alkylating • Brain Neoplasms • DNA Repair • DNA, Neoplasm • Dacarbazine* • Drug Administration Schedule • Female • Glioblastoma • Humans • Imidazoles • Male • Middle Aged • O(6)-Methylguanine-DNA Methyltransferase • Predictive Value of Tests • Treatment Outcome • administration & dosage • analogs & derivatives* • drug effects* • drug therapy* • enzymology* • genetics • genetics* • therapeutic use*