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

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T Mandrup-Poulsen, K Bendtzen, J Nerup, C A Dinarello, M Svenson, Jens Høiriis Nielsen

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.
OriginalsprogEngelsk
TidsskriftDiabetologia
Vol/bind29
Udgave nummer1
Sider (fra-til)63-7
Antal sider5
ISSN0012-186X
StatusUdgivet - jan. 1986

ID: 47975100