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Proliferation Kinetics of Human Brain Tumors by In Situ Double Labeling with Bromodeoxyuridine and Iododeoxyuridine Tatsuhiro Maeda 1 , Takao Hoshino 1 1Department of Neurosurgery, Kyorin University School of Medicine Keyword: cell kinetics , human brain tumors , bromodeoxyuridine , iododeoxyuridine , potential doubling time pp.821-825
Published Date 1992/9/1
DOI https://doi.org/10.11477/mf.1406900381
  • Abstract
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Nineteen patients with human brain tumors (9 gliomas, 6 metastatic brain tumors, 3 meningiomas, 1 neurinoma) received intravenous infusions of iododeoxyuridine (IUdR) and bromodeoxyuridine (BUdR) at different time sequences, to estimate the duration of S-phase (Ts) and the potential doubling time (Tp) of individual tumors. Excised tumor specimens were reacted with Br-3, a monoclonal antibody that identifies only BUdR, and with IU-4, a monoclonal antibody that recognizes both IUdR and BUdR, and then were stained immunohisto-chemically. The BUdR LIs varied from 0.9% to 26.0%, reflecting the malignancy of each tumor. Despite the difference in LIs, however, the Ts measured was fairly uniform. The Ts was 8.9±1.8 hrs (mean±SD) in malignant gliomas, 9.2±2.5 hrs (mean±SD) in metastatic brain tumors and 9.2±0. 3 hrs (mean±SD) in meningiomas, respectively. In contrast, the Tp varied from 1.3 to 12.4 days in malignant gliomas and from 1.2 to 4.4 days in metastatic brain tumors. Double logarithmic regres-sion analysis showed a close correlation between the BUdR LI and Tp in human brain tumors with LI>1%. Double labeling studies with BUdR and IUdR allow some of the proliferation characteristics to be determined from a single biopsy specimen and provide more useful information of each tumors than can be obtained by single-labeling studies with BUdR.


Copyright © 1992, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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