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Clin Neuropathol. 2005 Sep-Oct;24(5):201-8.

Immunotreatment in patients with glioblastoma multiforme--a histopathological evaluation of reactive and inflammatory changes.

Author information

1
Department of Pathology, Division of Neuropathology, University Hospital, Lund, Sweden. Annette.Persson@med.lu.se

Abstract

Glioblastoma multiforme (GBM) is the most common highly malignant brain tumor and is also one among the most therapy-resistant human neoplasias. At the University Hospital in Lund, a group of patients with GBM were treated with a new therapy form attempting immunization by glioma cells transfected to produce interferon-gamma. The purpose of this report was to evaluate tumor material from the first nine patients treated with this therapy, assessing the levels of inflammatory/reactive cells (lymphocytes and macrophages). Tumor biopsies from surgery performed at different time points during treatment were analyzed with conventional histotechnical methods and immunohistochemistry. A post-mortem neuropathological investigation with a whole brain assessment was achieved in 5 immunized patients. The results show that cytotoxic T lymphocytes exhibited a mild increase during immunotreatment. This increase indicates an invoked stimulation of a cytotoxic T cell reaction, which may prove beneficial when immunization is adequately manipulated in dosage and timing.

PMID:
16167543
[Indexed for MEDLINE]

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