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Multidisciplinary Therapy Using Interferon and Immunological Evaluation for Glioma Patients:Two-color analysis of T cell subsets Yoshihiro NUMA 1 , Keiji KAWAMOTO 1 , Hiroshi MATSUMURA 1 1Department of Neurosurgery, Kan-sai Medical University Keyword: Interferon , OK−432 , IAR therapy , T cell subpopulation pp.121-128
Published Date 1991/2/10
DOI https://doi.org/10.11477/mf.1436900210
  • Abstract
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We have employed IAR therapy [combination of postirradiation, chemotherapy and interferon (IFN)] for malignant glioma patients. Changes of lymphocyte fractions in patients were evaluated before and after IAR therapy, using a recently developed two-color ana-lysis. Eight malignant glioma patients received irradia-tion, chemotherapy (ACNU) and immunotherapy (OK - 432 and IFN - β) . Peripheral blood lymphocytes taken during hospitalization with IAR therapy (first half and latter half), and every 3 to 6 months for 2 years at the longest after IAR therapy were double-stained with FITC- and PI-labelled antibodies and two-color analysis was conducted by a FACS Analyzer. Six patients out of 8 survived for 6 months to 2 years, 2 died after 3 and 6 months, respectively. Leu - 2a (sup-pressor/cytotoxic T), especially Leu - 2a+15- (cytotox-ic T) showed a high value. Leu - 2a level decreased during treatment, and both Leu - 2a+15- and Leu - 2a+ 15 + (suppressor T) values decreased. Two thirds of the patients showing an increased Leu - 2a+15+ level died. Leu 3a (helper/inducer T), especially Leu - 3a+8+ (inducer T) level decreased, but Leu - 3a+8- (helper T) level increased during treatment. The level de-creased in the worser patients. Leu - 3a/Leu - 2a ratio was low, but it increased during treatment as compared with the results of conventional therapy. Leu - 7, Leu -11a, NK activity, and γ- IFN productivity were further studied. Treatment combined with IFN revealed an in-fluence on the T cells resulting in an increase of helper T level and suppression of suppressor T level.


Copyright © 1991, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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