Antibody-dependent killer-cell function in insulin-dependent diabetes mellitus

Journal of Endocrinological Investigation
H LudwigW R Mayr

Abstract

Antibody-dependent killer-cell activity (ADCC) was determined in 36 insulin-dependent diabetics (IDD) and 32 controls. The medians of cytotoxic indices obtained by using either antibody coated chicken red blood or HeLa cells as targets were statistically significantly reduced in the diabetics (P less than 0.05 for both systems). However, due to the wide range and considerable overlap of the cytotoxic indices observed in patients and controls, the biological significance of these mathematical differences remains to be determined. The duration of the disease did not have any influence on killer (K) cell function and only a slight tendency for decreased ADCC during episodes of poor metabolic control was noted. Further analysis of the influence of diabetes-associated factors did not reveal any definite correlation between the functional K cell deficit, the insulin dosage administered, the insulin antibody titers, the blood glucose at the time of sampling, the 24 hour glucosuria and IDD-associated immunogenetic factors.

References

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