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  • Title: Immune modulation with interleukin-4 and interleukin-10 prevents crescent formation and glomerular injury in experimental glomerulonephritis.
    Author: Tipping PG, Kitching AR, Huang XR, Mutch DA, Holdsworth SR.
    Journal: Eur J Immunol; 1997 Feb; 27(2):530-7. PubMed ID: 9045927.
    Abstract:
    Crescentic glomerulonephritis (GN) demonstrates immunopathological features of a T helper (Th)1-directed delayed-type hypersensitivity (DTH) response. The capacity of Th2 cytokines to attenuate crescentic glomerular injury in this disease was examined by administering interleukin (IL)-4 and IL-10, singly and in combination. GN was induced by i.v. administration of sheep anti-mouse glomerular basement membrane (GBM) globulin to mice sensitized to sheep globulin 10 days earlier. Treatment (2.5 microg, i.p.) with IL-4, IL-10, or both IL-4 and IL-10 (IL-4 + 10), was started 1 h before sensitization and continued daily until the end of the study (10 days after administration of anti-GBM globulin). Control mice treated with PBS developed GN with glomerular accumulation of T cells and macrophages, crescents in 42.5 +/- 4.5 % of glomeruli (normal 0 %), proteinuria (8.3 +/- 0.9 mg/24 h, normal 0.74 +/- 0.08 mg/24 h, p <0.001) and renal impairment (creatinine clearance [cr/cl]: 93 +/- 12 microl/min, normal 193 +/- 10 microl/min, p < 0.001). Treatment with either IL-4, IL-10, or IL-4 + 10 prevented crescent formation (crescentic glomeruli: 0.8 +/- 0.5, 1.2 +/- 0.9, and 1.4 +/- 1.0 %, respectively, all p < 0.01 compared to control) and attenuated proteinuria (3.6 +/- 1.0, 2.2 +/- 0.5, and 2.9 +/- 0.5 mg/24 h, respectively, all p < 0.01 compared to control). IL-4 + 10 prevented development of renal impairment (cr/cl: 183 +/- 22 microl/min); IL-10 given alone limited the decline in renal function (cr/cl: 150 +/- 20 microl/min), but IL-4 alone did not provide any significant protection (cr/cl: 121 +/- 17 microl/min). All treatments markedly diminished glomerular T cell and macrophage accumulation, reduced interferon-gamma production by splenic T cells, prevented cutaneous DTH to the disease-initiating antigen and reduced antigen-specific immunoglobulin of the IgG2a and IgG3 isotypes. These data demonstrate that crescentic GN and renal impairment can be prevented by administration of Th2 cytokines and that this effect is associated with attenuation of the Th1 response to the disease-initiating antigen.
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