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Journal Article

Renal and central vasopressin receptors: immunocytochemical localization


Fahrenholz,  Falk
Emeritusgroup Physical Chemistry, Max Planck Institute of Biophysics, Max Planck Society;


Haase,  Winfried
Department of Physiology, Max Planck Institute of Biophysics, Max Planck Society;

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Fahrenholz, F., Jurzak, M., Gerstberger, R., & Haase, W. (1993). Renal and central vasopressin receptors: immunocytochemical localization. Annals of the New York Academy of Sciences, 689(1), 194-206. doi:10.1111/j.1749-6632.1993.tb55548.x.

Cite as: https://hdl.handle.net/21.11116/0000-0008-A554-F
Employing an anti-vasopressin monoclonal antibody for immunization, anti-idiotypic monoclonal antibodies were obtained which induced plasminogen activator production in the renal epithelial cell line LLC-PK1. The anti-idiotypic antibodies were employed to visualize vasopressin receptors on LLC-PK1 and A7r5 smooth muscle cells by immunofluorescence. All results indicated specificity of the anti-idiotypes for both V1 and V2 vasopressin receptor subtypes. These antibodies were used for immunohistochemical localization of vasopressin receptors in rat and bovine kidney preparations. In accordance with earlier physiological and biochemical observations, vasopressin receptors were detected predominantly in collecting ducts in cortex and medulla. On the cellular level, a differential staining pattern was observed. On rat brain tissue sections, dense staining was observed within various circumventricular organs. The staining pattern corresponded to that obtained in autoradiographic studies with labeled AVP(4-9) fragment peptide and differed from the distribution of binding sites for labeled vasopressin or V1 antagonists.