The effects of glucose (5–25 mM) and insulin concentration (40–320 μU/ml) on the cell shape of neutrophil granulocytes from healthy humans were studied. Both non-activated and N-formyl-methionyl-leucyl-phenylalanine (fMet-Leu-Phe)-activated neutrophils in suspension were used as a model for initial chemotactic activation of neutrophil locomotion. D-glucose, but not the non-metabolizable analogue 3-O-methyl-D-glucose, dose-dependently reduced the fMet-Leu-Phe-induced (10−8M) neutrophil elongation. Insulin, either alone or in combination with 25 mM D-glucose, was without effect on the fMet-Leu-Phe-induced neutrophil elongation. Furthermore, the inhibitory effect of D-glucose was observed already after 1 min of exposure to D-glucose and fMet-Leu-Phe. D-glucose diminished the fraction of neutrophils with elongated locomotor shape by changing it into an irregular cell shape, suggesting that at least part of the D-glucose effect could be associated with mechanisms determining the typical locomotor shape. The present results suggest that D-glucose through its metabolism, but without the involvement of insulin, reduces chemotactically induced elongation to a locomotor neutrophil shape, and thus neutrophil motility, and that this effect of glucose appears prior to adhesion. This glucose-induced inhibition of the neutrophil chemotactic response may be involved in the neutrophil deficiency seen in diabetes mellitus.
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Research Article|
October 01 1997
D-Glucose but Not Insulin Reduces N-formyl-methionyl-leucyl-phenylalanine (fMet-Leu-Phe)-Induced Shape Changes in Suspended Human Neutrophils
Per-Arne Oldenborg;
Per-Arne Oldenborg
1Department of Histology and Cell Biology, Umeå University, S-901 87 Umeå, Sweden.
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Janove Sehlin
Janove Sehlin
1Department of Histology and Cell Biology, Umeå University, S-901 87 Umeå, Sweden.
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Publisher: Portland Press Ltd
Online ISSN: 1573-4935
Print ISSN: 0144-8463
© 1997 Plenum Publishing Corporation
1997
Biosci Rep (1997) 17 (5): 475–486.
Citation
Per-Arne Oldenborg, Janove Sehlin; D-Glucose but Not Insulin Reduces N-formyl-methionyl-leucyl-phenylalanine (fMet-Leu-Phe)-Induced Shape Changes in Suspended Human Neutrophils. Biosci Rep 1 October 1997; 17 (5): 475–486. doi: https://doi.org/10.1023/A:1027347904512
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