Angiotensin II in Cell Growth and Matrix Production

  • Willa A. Hsueh
  • Yung S. Do
  • Pamela W. Anderson
  • Ronald E. Law
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 377)

Abstract

The functions of angiotensin II (AII) in vasconstriction, stimulation of adrenal aldosterone secretion and renal proximal tubular sodium reabsorption are well known, but AII’s role in growth in cardiovascular and renal systems is only recently recognized (1,2). This growth effect has a number of potential pathological implications. AII induces hypertrophy of mesangial cells (3), which may directly contribute to the development of glomerulosclerosis, the hallmark pathological change associated with diabetic nephropathy (4). AII also induces hypertrophy of adult vascular smooth muscle cells which may contribute to vascular remodeling processes following injury (5–7). In the heart, AII has direct effects on the cardiac fibroblasts and possibly the cardiomyocytes, which may contribute to the development of left ventricular hypertrophy and cardiac remodeling (8–11). In order to define the cellular mechanism of AII action in these processes, we studied the effect of AII in cultured mesangial cells and in cardiac fibroblasts and AII’s potential interaction with other growth factors on the cells. In addition to growth, we also found that AII has direct effects on matrix production which further contributes to remodelling in these tissues. In this context, also see the chapter by Wolf elsewhere in this volume.

Keywords

Left Ventricular Hypertrophy Mesangial Cell Receptor mRNA Cardiac Fibroblast Experimental Myocardial Infarction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Willa A. Hsueh
    • 1
  • Yung S. Do
    • 1
  • Pamela W. Anderson
    • 1
  • Ronald E. Law
    • 1
  1. 1.Department of Medicine, Division of Endocrinology, Diabetes and HypertensionUniversity of Southern California, School of MedicineLos AngelesUSA

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