Combined treatment of pediatric high-grade glioma with the oncolytic viral strain MTH-68/H and oral valproic acid

Wagner, Sabine and Csatary, Christine M. and Gosztonyi, Georg and Koch, Hans-Christian and Hartmann, Christian and Peters, Ove and Hernaiz-Driever, Pablo and Theallier-Janko, Agota and Zintl, Felix and Langler, Alfred and Wolff, Johannes E. A. and Csatary, Laszlo K. (2006) Combined treatment of pediatric high-grade glioma with the oncolytic viral strain MTH-68/H and oral valproic acid. APMIS, 114 (10). pp. 731-743. ISSN 0903-4641, 1600-0463

Full text not available from this repository. (Request a copy)

Abstract

The case of a 12-year-old boy with anaplastic astrocytoma of the left thalamus is reported. Postoperative irradiation and chemotherapy could not repress tumor progression; therefore, treatment was undertaken with an oncolytic virus, MTH-68/H, an attenuated strain of Newcastle disease virus (NDV), and valproic acid (VPA), an antiepileptic drug, which also has antineoplastic properties. This treatment resulted in a far-reaching regression of the thalamic glioma, but 4 months later a new tumor manifestation, an extension of the thalamic tumor, appeared in the wall of the IVth ventricle, which required a second neurosurgical intervention. Under continuous MTH-68/H - VPA administration the thalamic tumor remained under control, but the rhombencephalic one progressed relentlessly and led to the fatal outcome. In the final stage, a third tumor manifestation appeared in the left temporal lobe. The possible reasons for the antagonistic behavior of the three manifestations of the same type of glioma to the initially most successful therapy are discussed. The comparative histological study of the thalamic and rhombencephalic tumor manifestations revealed that MTH-68/H treatment induces, similar to in vitro observations, a massive apoptotic tumor cell decline. In the rhombencephalic tumor, in and around the declining tumor cells, NDV antigen could be demonstrated immunohistochemically, and virus particles have been found in the cytoplasm of tumor cells at electron microscopic investigation. These findings document that the oncolytic effect of MTH-68/H treatment is the direct consequence of virus presence and replication in the neoplastic cells. This is the first demonstration of NDV constituents in an MTH-68/H -treated glioma.

Item Type: Article
Uncontrolled Keywords: NEWCASTLE-DISEASE VIRUS; RAPID ANAPLASTIC TRANSFORMATION; CELLS IN-VITRO; MALIGNANT GLIOMA; VACCINE MTH-68/H; TUMOR-CELLS; SIMULTANEOUS RADIOCHEMOTHERAPY; GLIOBLASTOMA-MULTIFORME; SODIUM VALPROATE; P53 GENE; high-grade glioma; MTH-68/H; Newcastle disease virus (NDV); oncolytic viruses; valproic acid (VPA); blood-brain barrier (BBB)
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Abteilung für Pädiatrische Hämatologie, Onkologie und Stammzelltransplantation
Depositing User: Dr. Gernot Deinzer
Date Deposited: 25 Jan 2021 06:53
Last Modified: 25 Jan 2021 06:53
URI: https://pred.uni-regensburg.de/id/eprint/33906

Actions (login required)

View Item View Item