Heparanase prevents the development of type 1 diabetes in non-obese diabetic mice by regulating T-cell activation and cytokines production.

Abstract:

BACKGROUND:Heparanase is an endo-beta-D-glucuronidase that cleaves heparan sulfate saccharide chains. The enzyme promotes cell adhesion, migration and invasion, and was shown to play a significant role in cancer metastasis and angiogenesis. METHODS:The present study focuses on the involvement of heparanase in autoimmunity, applying the murine non-obese diabetic (NOD) model, a T-cell-dependent disease often used to investigate the pathophysiology of type 1 diabetes. RESULTS:It was found that intra-peritoneal administration of heparanase ameliorated the clinical signs of the disease. In vitro studies revealed that heparanase has an inhibitory effect on the activation of T-cells through modulation of their repertoire of cytokines indicated by a marked increase in the levels of IL-4 and IL-10, and a parallel decrease in IL-12, tumour necrosis factor-alpha (TNF-alpha) and interferon-gamma (IFN-gamma). CONCLUSIONS:We suggest that heparanase induces a shift from a Th1- to Th2-phenotype, resulting in inhibition of diabetes in NOD mice and possibly other autoimmune disorders.

journal_name

Diabetes Metab Res Rev

authors

Bitan M,Weiss L,Zeira M,Reich S,Pappo O,Vlodavsky I,Slavin S

doi

10.1002/dmrr.868

subject

Has Abstract

pub_date

2008-07-01 00:00:00

pages

413-21

issue

5

eissn

1520-7552

issn

1520-7560

journal_volume

24

pub_type

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