TY - JOUR
T1 - The role of lymphocytes in the experimental progressive glomerulonephritis
AU - Ikezumi, Yohei
AU - Kanno, Katsue
AU - Karasawa, Tamaki
AU - Dong Han, G. I.
AU - Ito, Yumi
AU - Koike, Hiroko
AU - Toyabe, Shinichi
AU - Uchiyama, Makoto
AU - Shimizu, Fujio
AU - Kawachi, Hiroshi
N1 - Funding Information:
This work was supported by Grant-Aids for Scientific Research (B) (13557084 and 14370317 to H. Ka), Grant-Aids for Scientific Research (B) (08457286 to F.S.) from the Ministry of Education, Science, Culture, Sports of Japan, and Grant-Aids from Naito memorial foundation (to H. Ka). The authors express their gratitude to Ms. M. Kayaba, Ms. Y. Kondo, and Ms. C. Nagasawa for their technical assistance.
PY - 2004/9
Y1 - 2004/9
N2 - Background. Glomerular accumulation of leukocytes, including lymphocytes, is a common feature in most types of glomerulonephritis. However, the role of lymphocytes in progressive glomerulonephritis has not been elucidated. We examined the role of lymphocytes in the development of progressive mesangial proliferative glomerulonephritis induced by two injections of monoclonal antibody 1-22-3 in rats. Methods. To elucidate the role of lymphocytes, circulating lymphocytes were depleted using specific monoclonal antibodies to rat lymphocytes prior to the induction of progressive glomerulonephritis. The effects of lymphocyte depletion on proteinuria and glomerular alterations were assessed 7 and 56 days after the induction of progressive glomerulonephritis. Results. Significant glomerular accumulation of CD4+ T cells, CD8+ T cells, and ED3+-activated macrophage were observed after the induction of glomerulonephritis. Depletion studies showed that continuous treatment with anti-CD5, anti-CD4, or anti-CD8 treatment reduced proteinuria and ameliorated the glomerular lesions on day 56. Depletion of CD4+ T cells also reduced glomerular accumulation of CD8+ T cells and ED3+-activated macrophages, and reduced glomerular expression of mRNA for interferon-gamma (INF-γ) (63.0% in anti-CD5 and 62.3% reduction in anti-CD4). Transit lymphocyte depletion limited in early stage of progressive glomerulonephritis demonstrated that CD4+ T-cell depletion, but not anti-CD8 treatment prevented glomerular injuries 56 days after the induction of progressive glomerulonephritis. Conclusion. CD4+ T cells played a central role in the development of progressive glomerulonephritis, controlling recruitment and activation of CD8+ cytotoxic cells and/or macrophages.
AB - Background. Glomerular accumulation of leukocytes, including lymphocytes, is a common feature in most types of glomerulonephritis. However, the role of lymphocytes in progressive glomerulonephritis has not been elucidated. We examined the role of lymphocytes in the development of progressive mesangial proliferative glomerulonephritis induced by two injections of monoclonal antibody 1-22-3 in rats. Methods. To elucidate the role of lymphocytes, circulating lymphocytes were depleted using specific monoclonal antibodies to rat lymphocytes prior to the induction of progressive glomerulonephritis. The effects of lymphocyte depletion on proteinuria and glomerular alterations were assessed 7 and 56 days after the induction of progressive glomerulonephritis. Results. Significant glomerular accumulation of CD4+ T cells, CD8+ T cells, and ED3+-activated macrophage were observed after the induction of glomerulonephritis. Depletion studies showed that continuous treatment with anti-CD5, anti-CD4, or anti-CD8 treatment reduced proteinuria and ameliorated the glomerular lesions on day 56. Depletion of CD4+ T cells also reduced glomerular accumulation of CD8+ T cells and ED3+-activated macrophages, and reduced glomerular expression of mRNA for interferon-gamma (INF-γ) (63.0% in anti-CD5 and 62.3% reduction in anti-CD4). Transit lymphocyte depletion limited in early stage of progressive glomerulonephritis demonstrated that CD4+ T-cell depletion, but not anti-CD8 treatment prevented glomerular injuries 56 days after the induction of progressive glomerulonephritis. Conclusion. CD4+ T cells played a central role in the development of progressive glomerulonephritis, controlling recruitment and activation of CD8+ cytotoxic cells and/or macrophages.
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U2 - 10.1111/j.1523-1755.2004.00852.x
DO - 10.1111/j.1523-1755.2004.00852.x
M3 - Article
C2 - 15327397
AN - SCOPUS:4344645768
SN - 0085-2538
VL - 66
SP - 1036
EP - 1048
JO - Kidney International
JF - Kidney International
IS - 3
ER -