Formation and degradation of lipid droplets in human adipocytes and the expression of aldehyde oxidase (AOX)

Table 2 Localization of xanthine oxidoreductase and aldehyde oxidase in diverse cell types

XOR is present in:	XOR is absent from:
Alveolar epithelial cells of lactating mammary gland	Ductal epithelial cells of mammary gland
Capillary endothelial cells of	Myoepithelial cells of mammary and salivary gland
- Small and large intestine
- Heart and skeletal muscle	Endothelial cells of
- Lung	- Large blood vessels (arteries and veins)
- Kidney	- Endocardium
- Liver	- Capillaries of brain (gray and white matter)
- Thymus	- Capillaries of testis
- Spleen
- Placenta	Epithelial cells of
- Epidermis	- Liver
- Choroid plexus of brain	- Lung
- White adipose tissue	- Kidney
- Arterial wall	- Thymus
- Arterial wall	- Epidermis
	- Intestine
	Fibroblasts, adipocytes, muscle cells, nerve cells and diverse blood cells
AOX is present in:
Visceral and subcutaneous fat depots
Adipocytes
Liver
Lung
Kidney
Intestine
Prostate
Testis
Adrenal gland

Data on XOR are taken from (1) Jarasch et al., Acta Physiol. Scand (1986) Suppl. 548: 39–46. Data on AOX are taken from (2) Weigert et al., FEBS Letters (2008) 582: 2965–2972. (3) Moriwaki et al., Histol Histopathol (2001) 16: 745–753. Highlighted in bold letters: adipose tissue, fat depots and adipocytes, e.g., one main focus of this manuscript. Data for XOR are taken from a table shown by Jarasch et al. (1986) and originate from bovine tissues. Localizations were confirmed also for human tissues (see Jarasch et al. 1981; Bruder et al. 1984)