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      The Expression of Connexin 43 in Human Kidney and Cultured Renal Cells

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          Abstract

          Gap junctions enable intercellular communication and play an important role in a variety of vital cellular functions including differentiation and the control of growth. These junctions are formed by a hexameric of proteins known as connexins. We investigated the distribution of the connexin 43 (Cx43) gap junction protein in renal cells and human kidney using the alkaline phosphatase anti-alkaline phosphatase immunohistochemical technique with a monoclonal antibody directed against the cytoplasmic domain of this antigen. Strong staining was demonstrated on the vascular endothelium, the smooth muscle of larger vessels and on glomerular epithelial cells. In addition, Cx43 was expressed on proximal tubular cells, glomerular endothelial cells and occasional cells infiltrating the interstitium. In areas of tubular atrophy there was increased staining for Cx43. Using reverse transcription-polymerase chain reaction we have also demonstrated that cultured human and rat mesangial cells and human proximal tubular cells express Cx43 messenger RNA. In summary, we have described for the first time the distribution of Cx43 in human kidney and cultured renal cells.

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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
          19 December 2008
          : 75
          : 4
          : 458-463
          Affiliations
          Departments of aMedicine and Therapeutics and bPathology, University of Aberdeen, Aberdeen, UK
          Article
          189585 Nephron 1997;75:458–463
          10.1159/000189585
          9127334
          © 1997 S. Karger AG, Basel

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          Page count
          Pages: 6
          Categories
          Original Paper

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