First Author | Nozaki Y | Year | 2014 |
Journal | Am J Physiol Renal Physiol | Volume | 306 |
Issue | 10 | Pages | F1210-21 |
PubMed ID | 24623145 | Mgi Jnum | J:210882 |
Mgi Id | MGI:5572841 | Doi | 10.1152/ajprenal.00570.2013 |
Citation | Nozaki Y, et al. (2014) Endogenous Tim-1 promotes severe systemic autoimmunity and renal disease MRL-Fas(lpr) mice. Am J Physiol Renal Physiol 306(10):F1210-21 |
abstractText | The T-cell immunoglobulin mucin 1, also known as kidney injury molecule-1, modulates CD4+ T-cell responses and is also expressed by damaged proximal tubules within the kidney. Both Th subset imbalance (Th1/Th2/Th17) and regulatory T-cell and B-cell alterations contribute to the pathogenesis of autoimmune disease. This study investigated the effects of an inhibitory anti-T-cell immunoglobulin mucin 1 antibody (RMT1-10) in lupus-prone MRL-Fas(lpr) mice. MRL-Fas(lpr) mice were treated with RMT1-10 or a control antibody intraperitoneally twice weekly from 3 mo of age for 16 wk. RMT1-10 treatment significantly improved survival, limited the development of lymphadenopathy and skin lesions, preserved renal function and decreased proteinuria, reduced serum anti-DNA antibody levels, and attenuated renal leukocyte accumulation. Th1 and Th17 cellular responses systemically and intrarenally were reduced, but regulatory T and B cells were increased. RMT1-10 treatment also reduced glomerular immunoglobulin and C3 deposition and suppressed cellular proliferation and apoptosis. Urinary excretion and renal expression of kidney injury molecule-1 was reduced, reflecting diminished interstitial injury. As RMT1-10 attenuated established lupus nephritis, manipulating immune system T-cell immunoglobulin mucin 1 may represent a therapeutic strategy in autoimmune diseases affecting the kidney. |