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Angiopoietin-1 therapy enhances fibrosis and inflammation following folic acid-induced acute renal injury

Lookup NU author(s): Dr Kathryn White

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Abstract

The loss of interstitial capillaries is a feature of several experimental models of renal disease and this contributes to secondary kidney injury. Angiopoietin-1 is a secreted growth factor which binds to Tie-2 present on endothelia to enhance cell survival thereby stabilizing capillary architecture in-vitro. Previous studies showed that angiopoietin-1 prevented renal capillary and interstitial lesions following experimental ureteric obstruction. We tested here the effect of angiopoietin-1 treatment on capillary loss and associated tubulointerstitial damage known to follow recovery from folic acid-induced tubular necrosis and acute renal injury. We found that delivery of angiopoietin-1 by adenoviral vectors stabilized peritubular capillaries in folic acid nephropathy but this was accompanied by profibrotic and inflammatory effects. These results suggest that the use of endothelial growth factor therapy for kidney disease may have varying outcomes that depend on the disease model tested. © 2008 International Society of Nephrology.

Publication metadata

Author(s): Long DA, Price KL, Ioffe E, Gannon CM, Gnudi L, White KE, Yancopoulos GD, Rudge JS, Woolf AS

Publication type: Article

Publication status: Published

Journal: Kidney International

Year: 2008

Volume: 74

Issue: 3

Pages: 300-309

ISSN (print): 0085-2538

ISSN (electronic): 1523-1755

Publisher: Nature Publishing Group

URL: http://dx.doi.org/10.1038/ki.2008.179

DOI: 10.1038/ki.2008.179

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