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      Increased Expression of Platelet-Derived Growth Factor A and Collagenous Matrix Proteins in Congenital Multicystic Renal Dysplasia

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          Abstract

          The expression of platelet-derived growth factor A (PDGF-A), and its spatial and temporal relationship to interstitial collagens in kidneys with congenital multicystic dysplasia using in situ hybridization, have been examined. Seventeen dysplastic kidneys (16 weeks to 7 months) and 20 normal age-matched controls were used in the study. Increased PDGF-A mRNA was detected in dysplastic compared to normal kidneys in all age groups including extensively fibrotic postnatal kidneys. An abundant PDGF-A mRNA signal was seen within the epithelial cells of cystically dilated or dysplastic tubules and within interstitial fibroblasts and disorganized primitive mesenchyme. A comparable amount of PDGF-A protein was detected by Western blotting. Procollagen I and III mRNA were increased in fibroblasts surrounding cystic and dysplastic tubules. We conclude that tubular epithelial production of PDGF-A may induce collagenous matrix production by adjacent fibroblasts, while marked up-regulation of PDGF-A by interstitial cells may be responsible for sustainable fibrogenic effects in the fetal kidney contributing to renal maldevelopment.

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          Author and article information

          Journal
          NEF
          Nephron
          10.1159/issn.1660-8151
          Nephron
          S. Karger AG
          1660-8151
          2235-3186
          1997
          1997
          23 December 2008
          : 76
          : 2
          : 161-170
          Affiliations
          aDepartment of Pathology, Washington University School of Medicine and bDepartment of Surgery, St. Louis University School of Medicine, St. Louis, Mo., USA
          Article
          190164 Nephron 1997;76:161–170
          10.1159/000190164
          9200407
          52f0e82a-5930-4d7a-8f4c-5f6b938e74c3
          © 1997 S. Karger AG, Basel

          Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

          History
          : 03 September 1996
          Page count
          Pages: 10
          Categories
          Original Paper

          Cardiovascular Medicine,Nephrology
          Renal dysplasia,Collagen,Platelet-derived growth factor A
          Cardiovascular Medicine, Nephrology
          Renal dysplasia, Collagen, Platelet-derived growth factor A

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