Arachidonate lipoxygenase products and renal allograft rejection in dogs

Martin J. Mangino, Charles B. Anderson, Katherine Deschryver, John Turk

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The production of 12-hydroxyeicosatetraenoic acid (12-HETE) and leukotriene B4 (LTB4) was studied in renal tissue obtained from renal allografts and normal kidneys of nonimmunosuppressed dogs that had undergone unilateral renal allotransplantation. We have shown that allografted renal cortex undergoing rejection synthesizes significantly greater quantities of 12-HETE than normal or autotransplanted control renal cortex. There was no significant increase in 12-HETE production by allografted medulla undergoing rejection. Production of LTB4 was significantly greater in the rejecting renal cortex compared to control renal cortex but was not different in the rejecting compared to normal renal medulla. Production of 12-HETE and LTB4 was significantly inhibited by the lipoxygenase-cycloox-ygenase inhibitor BW755C, suggesting that production of these compounds was enzyme catalyzed. Histologic examination of renal tissue undergoing rejecting revealed varying degrees of tissue destruction and cellular infiltration. These histologic parameters correlated with the magnitude of 12-HETE production in the allografts. Our findings therefore indicate that arachidon-ate lipoxygenase products are generated in increased amounts by renal cortical tissue undergoing rejection and suggest that these products may be involved in the rejection process.

Original languageEnglish
Pages (from-to)805-808
Number of pages4
JournalTransplantation
Volume44
Issue number6
DOIs
StatePublished - Dec 1987

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