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CHEMOSENSITIVITY TEST FOR HUMAN GLIOMAS Osamu Nakamura 1 , Masao Matsutani 1 , Takuma Sasaki 2 , Motohiro Tanaka 2 , Yoshio Endo 2 , Kintomo Takakura 3 1Department of Neurosurgery, Tokyo Metropolitan Komagome Hospital 2Department of Experimental Therapeutics, Cancer Research Institute, Kanazawa University 3Department of Neurosurgery, University of Tokyo Hospital pp.913-917
Published Date 1988/10/1
DOI https://doi.org/10.11477/mf.1406206184
  • Abstract
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In case of chemotherapy against brain tumors, it is most important to choose suitable drugs for brain tumors, since human tumors have different drug sensitivity and growth. Heretofore, human tumor clonogenic assays or human glioma-bearing nude mice models were usually used for predicting the drug sensitivity of brain tumor. Human tumor clonogenic assays are one of the best in vitro tests for anticancer drug activity. However, plating efficiency is low, sometimes preventing evaluation of drug sensitivity, and the slow growth of colo-nies means that culture time is long. Assays using immunodeficient mice are used for predicting the drug sensitivity of human tumors ; usually results reflect the sensitivity of the parent tumor. How-ever, procedure using athymic nude mice are slow and expensive. We took notice of Murphy's sys-tem for the chemosensitivity test, in which a human tumor is transplanted into the chorio-allantoic membrane (CAM) of a chick embryo, because in this system, various kinds of human tumors could be grafted in high rate.

By modifying the conventional Murphy's system, we studied the efficiency of this system in pre-dicting the drug sensitivity of brain tumors. We compared the result of a drug sensitivity test using CAM of a chick embryo with that using nude mice. First, we studied the effect of chemotherapeutic agents such as ACNU, bleomycin. Next, we stu-died the effect of combination treatment of CAP or CAPF. The tumor reduction rate of the sensiti-vity test using a chick embryo tended to agree with that using nude mice.

In conclusion, the drug sensitivity test using a chick embryo is thought to be useful and the advantages or disadvantages of this system are discussed.


Copyright © 1988, 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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