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. 1987 Apr;39(4):339-45.

[Immunohistological analysis of infiltrating lymphocyte subpopulations in gliomas and metastatic brain tumors]

[Article in Japanese]
T Saito, R Tanaka, M Kouno, N Takai, S Yoshida, N Hara, K Washiyama, K Sekiguchi, T Kumanishi
  • PMID: 2439110

[Immunohistological analysis of infiltrating lymphocyte subpopulations in gliomas and metastatic brain tumors]

[Article in Japanese]
T Saito et al. No To Shinkei. 1987 Apr.

Abstract

Subpopulations of infiltrating lymphocytes were studied by immunohistological method using monoclonal antibodies in gliomas and metastatic brain tumors. Thirteen specimens from 8 glioma patients, and 7 specimens from 3 metastatic brain tumor patients were used. No special therapy for brain tumor had been performed in these cases, but 3 glioma patients and all metastatic brain tumor patients had received steroid hormone. Frontal lobe obtained from the autopsy case of chest trauma was served as a normal control. Frozen sections were stained with avidin-biotin peroxidase complex method using Leu-series monoclonal antibodies for pan T-cells (Leu-1), cytotoxic/suppressor T-cells (Leu-2 a), helper/inducer T-cells (Leu-3 a) and B-cells (Leu-12). Lymphocyte infiltrates were quantitated by counting positively stained cells in 13 glioma and 7 metastatic brain tumor specimens. In normal frontal lobe, only a few T-cells infiltrated around several blood vessels in the parenchyma and subarachnoid space. But in the cases of glioma, many perivascular lymphocytic infiltrates were found and in the cases of metastatic brain tumor, many lymphocytes were found diffusely in the interstitial area between nests of tumor cells. Most of these lymphocytes were T-cells and B-cells were scarce, and Leu-2 a and Leu-3 a positive cells intermingled with each other. Len-3 a/2 a ratio ranged from 0.2 to 0.9 in the half of gliomas and 1.5 to 3.6 in another half of gliomas, three of which were treated with steroid hormone.(ABSTRACT TRUNCATED AT 250 WORDS)

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