Similar distribution of [125I]sarafotoxin-6b and [125I]endothelin-1, -2, -3 binding sites in the human kidney.
The distribution of binding sites for 125I-labelled endothelins (ET-1, ET-2, ET-3) and sarafotoxin-6b (SRTX-6b) was visualized in human kidneys using autoradiography. The glomeruli, the internal medulla and the renal blood vessels presented the highest levels of labelling, while the outer medulla exhibited intermediate and the cortex lower densities of sites. The relative enrichment of binding sites in different renal areas was similar for each peptide, suggesting the existence of a homogeneous population of endothelin/sarafotoxin receptors.
Waeber
C
C
Preclinical Research, Sandoz Ltd., Basel, Switzerland.
Hoyer
D
D
Palacios
J M
JM
D000368:Aged; D001345:Autoradiography; D016232:Endothelins; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D007457:Iodine Radioisotopes; D007668:Kidney / Q000378:metabolism*; D007672:Kidney Cortex / Q000378:metabolism; D007678:Kidney Glomerulus / Q000378:metabolism; D007679:Kidney Medulla / Q000378:metabolism; D008297:Male; D010455:Peptides / Q000378:metabolism; D011956:Receptors, Cell Surface / Q000378:metabolism*; D011950:Receptors, Cholinergic / Q000378:metabolism*; D017466:Receptors, Endothelin; D018000:Receptors, Peptide; D014757:Viper Venoms / Q000378:metabolism*
D016232:Endothelins; D007457:Iodine Radioisotopes; D010455:Peptides; D011956:Receptors, Cell Surface; D011950:Receptors, Cholinergic; D017466:Receptors, Endothelin; D018000:Receptors, Peptide; D014757:Viper Venoms; C058085:sarafotoxin receptor; C057354:sarafotoxins s6