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Long‐term observation of glomerulonephritis induced by multiple injections with anti‐Thy‐1 antibody in rats
Author(s) -
Yagi Mikio,
Yamamoto Tadashi,
Kato Shinichiro,
Nagano Nobuo,
Kihara Itaru
Publication year - 1998
Publication title -
pathology international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 74
eISSN - 1440-1827
pISSN - 1320-5463
DOI - 10.1111/j.1440-1827.1998.tb03939.x
Subject(s) - proteinuria , glomerulonephritis , capsule , endocrinology , medicine , antibody , mesangial proliferative glomerulonephritis , kidney , monoclonal antibody , pathology , biology , immunology , botany
Multiple Injections with a mouse monoclonal anti‐rat Thy‐1 antibody (five times, at weekly intervals) induced marked glomerular sclerotic lesions which are characterized by adhesion of glomerular capillaries to Bowman's capsule and persistent proteinuria in rats. Abnormal production of type I collagen and increased accumulation of type IV collagen and flbronectln were observed in these glomeruli. The glomerular expression of mRNA for these matrix components and transforming growth factor‐pi (TGF‐β1) were markedly increased at 4 days after the last injections with anti‐Thy‐1 antibody, but decreased to below the levels of control rats at 5 weeks. This may be down‐regulation of mRNA In mesangial cells. The glomerular sclerotic lesions were not progressive but the process of glomerular healing seemed to be retarded. The proteinuria and the glomerular adhesion were irreversible.