Abstract
The activities of hexokinase, phosphofructokinase, aldolase, enolase and pyru-vate kinase were studied in breast cancer metastases occurring at various sites and compared with the enzyme activities in a series of primary breast cancers. The activities of all enzymes studied were significantly higher in the metastases compared to the primary tumors (p ≤ 0.05). However, no changes in the isozyme patterns of enolase and pyruvate kinase were observed when the metastases were compared with primary breast cancers. Differences in location of the metastases did not lead to differences in enzyme activities. Our data suggest an association of an increasing rate of glycolysis with tumor progression.
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© 1988 S. Karger AG, Basel
1988
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