SPCA1 pumps and Hailey-Hailey disease

Biochem Biophys Res Commun. 2004 Oct 1;322(4):1204-13. doi: 10.1016/j.bbrc.2004.07.128.

Abstract

Both the endoplasmic reticulum and the Golgi apparatus are agonist-sensitive intracellular Ca2+ stores. The Golgi apparatus has Ca2+-release channels and a Ca2+-uptake mechanism consisting of sarco(endo)plasmic-reticulum Ca2+-ATPases (SERCA) and secretory-pathway Ca2+-ATPases (SPCA). SPCA1 has been shown to transport both Ca2+ and Mn2+ in the Golgi lumen and therefore plays an important role in the cytosolic and intra-Golgi Ca2+ and Mn2+ homeostasis. Human genetic studies have provided new information on the physiological role of SPCA1. Loss of one functional copy of the SPCA1 (ATP2C1) gene causes Hailey-Hailey disease, a skin disorder arising in the adult age with recurrent vesicles and erosions in the flexural areas. Here, we review recent experimental evidence showing that the Golgi apparatus plays a much more important role in intracellular ion homeostasis than previously anticipated.

Publication types

  • Review

MeSH terms

  • Adult
  • Animals
  • Calcium / metabolism
  • Calcium-Transporting ATPases / genetics
  • Calcium-Transporting ATPases / physiology*
  • Female
  • Golgi Apparatus / enzymology
  • Humans
  • Manganese / metabolism
  • Pemphigus, Benign Familial / enzymology*
  • Pemphigus, Benign Familial / genetics
  • Pemphigus, Benign Familial / pathology

Substances

  • Manganese
  • ATP2C1 protein, human
  • Calcium-Transporting ATPases
  • Calcium