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Extraglomerular mesangial cell

From Wikipedia, the free encyclopedia

Extraglomerular mesangial cell
Diagram of renal corpuscle structure showing extraglomerular mesangial cell
Anatomical terminology

Extraglomerular mesangial cells (also known as Lacis cells, Polkissen cells, or Goormaghtigh cells[1][2]) are light-staining pericytes in the kidney found outside the glomerulus, near the vascular pole. They resemble smooth muscle cells and play a role in renal autoregulation of blood flow to the kidney and regulation of systemic blood pressure through the renin–angiotensin system. Extraglomerular mesangial cells are part of the juxtaglomerular apparatus, along with the macula densa cells of the distal convoluted tubule and the juxtaglomerular cells of the afferent arteriole.

The specific function of extraglomerular mesangial cells is not well understood, although it has been associated with the secretion of erythropoietin and secretion of renin.[3] They are distinguished from intraglomerular mesangial cells, which are situated between the basement membrane and the epithelial cells within the glomerulus.

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Transcription

See also

References

  1. ^ Christensen, JA; Bohle, A; Mikeler, E; Taugner, R (January 1989). "Renin-positive granulated Goormaghtigh cells. Immunohistochemical and electron-microscopic studies on biopsies from patients with pseudo-Bartter syndrome". Cell and Tissue Research. 255 (1): 149–53. doi:10.1007/bf00229076. PMID 2661003. S2CID 21261370.
  2. ^ Schnermann, Jürgen B.; Briggs, Josephine P. (2008). "Function of the Juxtaglomerular Apparatus". Seldin and Giebisch's the Kidney. pp. 589–626. doi:10.1016/b978-012088488-9.50025-5. ISBN 9780120884889.
  3. ^ Junqueira, Luiz C.; Jose Carneiro (2003). Basic Histology. McGraw-Hill. ISBN 0-8385-0590-2.

External links

This page was last edited on 31 December 2023, at 19:05
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