Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10845829 | Seminars in Cancer Biology | 2005 | 9 Pages |
Abstract
Proliferating cells and tumor cells in particular express the pyruvate kinase isoenzyme type M2 (M2-PK). Within the tumor metabolome M2-PK regulates the proportions of glucose carbons that are channelled to synthetic processes (inactive dimeric form) or used for glycolytic energy production (highly active tetrameric form, a component of the glycolytic enzyme complex). In tumor cells, the dimeric form of M2-PK (Tumor M2-PK) is always predominant. The dimerization is caused by direct interaction of M2-PK with certain oncoproteins. The switch between the tetrameric and dimeric form of M2-PK allows tumor cells to survive in environments with varying oxygen und nutrient supply.
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Authors
Sybille Mazurek, C. Bruce Boschek, Ferdinand Hugo, Erich Eigenbrodt,