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Diabetologia

, Volume 29, Issue 1, pp 63–67 | Cite as

Affinity-purified human Interleukin I is cytotoxic to isolated islets of Langerhans

  • T. Mandrup-Poulsen
  • K. Bendtzen
  • J. Nerup
  • C. A. Dinarello
  • M. Svenson
  • J. H. Nielsen
Originals

Summary

Addition of highly purified human Interleukin-1 to the culture medium of isolated rat islets of Langerhans for 6 days led to 88% inhibition of glucose-induced insulin-release, reduction of islet contents of insulin and glucagon to 31% and 8% respectively, and disintegration of the islets. These effects were dose-dependent and reproducible when using three different Interleukin-1 preparations. Highly purified human Interleukin-2, Lymphotoxin, Leucocyte Migration Inhibitory Factor and Macrophage Migration Inhibitory Factor were ineffective. These findings suggest that Interleukin-1 may play an important role in the molecular mechanisms underlying autoimmune B-cell destruction leading to Type 1 (insulin-dependent) diabetes mellitus.

Key words

Autoimmunity pancreatic B cells cytotoxicity Interleukin-1 lymphokines macrophages pancreatic islets pathogenesis Type 1 (insulin-dependent) diabetes mellitus 

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Copyright information

© Springer-Verlag 1986

Authors and Affiliations

  • T. Mandrup-Poulsen
    • 1
  • K. Bendtzen
    • 2
  • J. Nerup
    • 1
  • C. A. Dinarello
    • 3
  • M. Svenson
    • 2
  • J. H. Nielsen
    • 4
  1. 1.Steno Memorial HospitalGentofteDenmark
  2. 2.Laboratory of Medical Immunology, RigshospitaletUniversity Hospital of CopenhagenCopenhagenDenmark
  3. 3.Department of MedicineTufts University School of MedicineBostonUSA
  4. 4.Hagedorn Research LaboratoryGentofteDenmark

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