Rock 'n' Roll Refrigerator.

نویسنده

  • G Pinholster
چکیده

-Lymph-node cells of (AKR x C3H) F1 leukaemic mice showed a considerable increase of glycolytic activity and 02 consumption. The glycolytic enzymes phosphofructokinase, pyruvate kinase, aldolase and lactic acid dehydrogenase showed increased activities in leukaemic conditions. Studies on permeabilized leukaemic and normal lymph-node cells, and assays on partially purified phosphofructokinase and pyruvate kinase enzymes, revealed that the enhanced glycolysis of the tumour cells was due to the predominance of glycolytic isoenzymes relatively insensitive to the natural metabolic inhibitors. The glycolytic enzyme hexo kinase showed decreased activity in leukaemic conditions, owing to a subcellular translocation of its bulk from the cytosol to the mitochondrial fraction. Association of hexokinase with the mitochondria accounted for an ATPase-like stimulatory action on cell respiration which can explain the increased 02 uptake of leukaemic cells.

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عنوان ژورنال:
  • Environmental Health Perspectives

دوره 102  شماره 

صفحات  -

تاریخ انتشار 1994