種田 積子
Department School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine Position Associate Professor |
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Article types | Original article |
Language | English |
Peer review | Peer reviewed |
Title | Exogenous PDGF-D is a potent mesangial cell mitogen and causes a severe mesangial proliferative glomerulopathy. |
Journal | Formal name:Journal of the American Society of Nephrology : JASN Abbreviation:J Am Soc Nephrol ISSN code:(1046-6673)1046-6673(Linking) |
Domestic / Foregin | Foregin |
Volume, Issue, Page | 15(2),pp.286-98 |
Author and coauthor | Hudkins Kelly L, Gilbertson Debra G, Carling Matthew, Taneda Sekiko, Hughes Steven D, Holdren Matthew S, Palmer Thomas E, Topouzis Stavros, Haran Aaron C, Feldhaus Andrew L, Alpers Charles E |
Publication date | 2004/02 |
Summary | The PDGF family consists of at least four members, PDGF-A, -B, -C, and -D. All of the PDGF isoforms bind and signal through two known receptors, PDGF receptor-alpha and PDGF receptor-beta, which are constitutively expressed in the kidney and are upregulated in specific diseases. It is well established that PDGF-B plays a pivotal role in the mediation of glomerular mesangial cell proliferation. However, little is known of the roles of the recently discovered PDGF-C and -D in mediating renal injury. In this study, adenovirus constructs encoding PDGF-B, -C, and -D were injected into mice. Mice with high circulating levels of PDGF-D developed a severe mesangial proliferative glomerulopathy, characterized by enlarged glomeruli and a striking increase in glomerular cellularity. The PDGF-B-overexpressing mice had a milder proliferative glomerulopathy, whereas the mice overexpressing PDGF-C and those that received adenovirus alone showed no measurable response. Mitogenicity of PDGF-D and -B for mesangial cells was confirmed in vitro. These findings emphasize the importance of engagement of PDGF receptor-beta in transducing mesangial cell proliferation and demonstrate that PDGF-D is a major mediator of mesangial cell proliferation. Finally, this approach has resulted in a unique and potentially valuable model of mesangial proliferative glomerulopathy and its resolution. |
PMID | 14747375 |