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IL-25 induces M2 macrophages and reduces renal injury in proteinuric kidney disease.


ABSTRACT: The kidney contains receptors for the cytokine IL-25, but the effects of IL-25 in CKD are unknown. Here, we induced adriamycin nephropathy in both BALB/c mice and severe combined immunodeficient (SCID) mice, and we injected IL-25 for 7 consecutive days starting at day 5 after adriamycin administration. BALB/c mice treated with IL-25 had less glomerulosclerosis, tubular atrophy, interstitial expansion, and proteinuria than control mice at day 28. IL-25 increased the levels of IL-4 and IL-13 in serum, kidney, renal draining lymph nodes, and CD4+ lymphocytes. IL-25 also directly suppressed effector macrophages in vitro and in vivo and induced alternatively activated (M2) macrophages in vivo. However, in SCID mice and in BALB/c mice treated with IL-4/13-neutralizing antibody, IL-25 failed to protect against renal injury and did not induce M2. In conclusion, IL-25 protects against renal injury in adriamycin nephropathy in mice by, at least in part, inducing Th2 immune responses.

SUBMITTER: Cao Q 

PROVIDER: S-EPMC3137571 | biostudies-literature | 2011 Jul

REPOSITORIES: biostudies-literature

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IL-25 induces M2 macrophages and reduces renal injury in proteinuric kidney disease.

Cao Qi Q   Wang Changqi C   Zheng Dong D   Wang Ya Y   Lee Vincent W S VW   Wang Yuan Min YM   Zheng Guoping G   Tan Thian Kui TK   Yu Di D   Alexander Stephen I SI   Harris David C H DC   Wang Yiping Y  

Journal of the American Society of Nephrology : JASN 20110630 7


The kidney contains receptors for the cytokine IL-25, but the effects of IL-25 in CKD are unknown. Here, we induced adriamycin nephropathy in both BALB/c mice and severe combined immunodeficient (SCID) mice, and we injected IL-25 for 7 consecutive days starting at day 5 after adriamycin administration. BALB/c mice treated with IL-25 had less glomerulosclerosis, tubular atrophy, interstitial expansion, and proteinuria than control mice at day 28. IL-25 increased the levels of IL-4 and IL-13 in se  ...[more]

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