Abstract
Protein extracted from conventional formalin-fixed and paraffin-embedded tissue sections of human gliomas was examined for immunoblot analysis using antibody against the placental form of glutathioneS-transferase (GST-π). Four benign astrocytomas, five anaplastic astrocytomas and four glioblastomas were used in this study. The preliminary study demonstrated that immunoreactivity of GST-π was well preserved in normal brain tissue and normal term placenta fixed in acetone, formalin or buffered formalin (pH 7.4). GST-π in gliomas fixed in formalin also had a good immunoreactivity and showed clear bands on nitrocellulose membranes processed by the method of Western blotting using anti-GST-π antibody. The results of immunoblot analysis for GST-π indicate that the intensity of immunoreactivity of benign astrocytoma, anaplastic astrocytoma and glioblastoma increases with the advance of malignancy of these neoplasms. Western blot analysis for GST-π can be performed using protein extracted from formalin-fixed and paraffin-embedded tissue sections, and the immunoreactive bands can be analyzed quantitatively by densitometric scanning.
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Abbreviations
- GST-π:
-
placental form of glutathioneS-transferase
- SDS-PAGE:
-
sodium dodecylsulfate/polyacrylamide gel electrophoresis
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Hara, A., Sakai, N., Yamada, H. et al. Immunoblot analysis of the placental form of glutathione S-transferase in protein extracted from paraffin-embedded human glioma tissue. J Cancer Res Clin Oncol 119, 493–496 (1993). https://doi.org/10.1007/BF01215931
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DOI: https://doi.org/10.1007/BF01215931