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Prolyl‐4‐hydroxylases 2 and 3 control erythropoietin production in renin‐expressing cells of mouse kidneys
Broeker, Katharina A. E.
, Fuchs, Michaela A. A., Schrankl, Julia, Lehrmann, Claudia, Schley, Gunnar, Todorov, Vladimir T., Hugo, Christian, Wagner, Charlotte
und Kurtz, Armin
(2021)
Prolyl‐4‐hydroxylases 2 and 3 control erythropoietin production in renin‐expressing cells of mouse kidneys.
The Journal of Physiology 60 (3), S. 671-694.
Veröffentlichungsdatum dieses Volltextes: 07 Apr 2022 12:17
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.52132
Dies ist die aktuelle Version dieses Eintrags.
Zusammenfassung
Activation of the hypoxia-signalling pathway induced by deletion of the ubiquitin-ligase von Hippel–Lindau protein causes an endocrine shift of renin-producing cells to erythropoietin (EPO)-expressing cells. However, the underlying mechanisms have not yet been investigated. Since oxygen-regulated stability of hypoxia-inducible transcription factors relevant for EPO expression is dependent on the ...
Activation of the hypoxia-signalling pathway induced by deletion of the ubiquitin-ligase von Hippel–Lindau protein causes an endocrine shift of renin-producing cells to erythropoietin (EPO)-expressing cells. However, the underlying mechanisms have not yet been investigated. Since oxygen-regulated stability of hypoxia-inducible transcription factors relevant for EPO expression is dependent on the activity of prolyl-4-hydroxylases (PHD) 2 and 3, this study aimed to determine the relevance of different PHD isoforms for the EPO expression in renin-producing cells in vivo. For this purpose, mice with inducible renin cell-specific deletions of different PHD isoforms were analysed. Our study shows that there are two subgroups of renal renin-expressing cells, juxtaglomerular renin+ cells and platelet-derived growth factor receptor-β+ interstitial renin+ cells. These interstitial renin+ cells belong to the cell pool of native EPO-producing cells and are able to express EPO and renin in parallel. In contrast, co-deletion of PHD2 and PHD3, but not PHD2 deletion alone, induces EPO expression in juxtaglomerular and hyperplastic renin+ cells and downregulates renin expression. A strong basal PHD3 expression in juxtaglomerular renin+ cells seems to prevent the hypoxia-inducible transcription factor-2-dependent phenotype shift into EPO cells. In summary, PHDs seem important for the stabilization of the juxtaglomerular renin cell phenotype. Moreover, these findings reveal tubulointerstitial cells as a novel site of renal renin expression and suggest a high endocrine plasticity of these cells. Our data concerning the distinct expression patterns and functions of PHD2 and PHD3 provide new insights into the regulation of renin-producing cells and highlight the need for selective PHD inhibitors.
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Details
| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | The Journal of Physiology | ||||
| Verlag: | Wiley | ||||
|---|---|---|---|---|---|
| Band: | 60 | ||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 3 | ||||
| Seitenbereich: | S. 671-694 | ||||
| Datum | 4 Dezember 2021 | ||||
| Zusätzliche Informationen (Öffentlich) | the version with the ID 51349 was the "Early view", this is the "normal" version | ||||
| Institutionen | Biologie und Vorklinische Medizin > Institut für Physiologie > Prof. Dr. Armin Kurtz | ||||
| Identifikationsnummer |
| ||||
| Stichwörter / Keywords | erythropoietin, hypoxia signalling, phenotype shift,prolyl 4-hydroxylases, renal interstitial cells, renin | ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften, Biologie | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden | Zum Teil | ||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-521324 | ||||
| Dokumenten-ID | 52132 |
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