Comparative proteomic analysis to identify the novel target gene of angiotensin ii in adrenocortical h295r cells

Ryo Ito, Hiroki Shima, Koji Masuda, Ikuko Sato, Hiroki Shimada, Atsushi Yokoyama, Katsuhiko Shirahige, Kazuhiko Igarashi, Akira Sugawara

Research output: Contribution to journalArticlepeer-review

Abstract

Angiotensin II (Ang II) is a well-known peptide that maintains the balance of electrolytes in the higher vertebrates. Ang II stimulation in the adrenal gland induces the synthesis of mineralocorticoids, mainly aldosterone, through the upregulation of aldosterone synthase (CYP11B2) gene expression. Additionally, it has been reported that Ang II activates multiple signaling pathways such as mitogen-activated protein kinase (MAPK) and Ca2+ signaling. Although Ang II has various effects on the cellular signaling in the adrenal cells, its biological significance, except for the aldosterone synthesis, is still unclear. In this study, we attempted to search the novel target gene(s) of Ang II in the human adrenal H295R cells using a proteomic approach combined with stable isotopic labeling using amino acid in cell culture (SILAC). Interestingly, we found that Ang II stimulation elevated the expression of phosphofructokinase type platelet (PFKP) in both protein and mRNA levels. Moreover, transactivation of PFKP by Ang II was dependent on extracellular-signal-regulated kinase (ERK) 1/2 activation. Finally, we observed that Ang II treatment facilitated glucose uptake in the H295R cells. Taken together, we here identified PFKP as a novel target gene of Ang II, indicating that Ang II not only stimulates steroidogenesis but also affects glucose metabolism.

Original languageEnglish
Pages (from-to)441-450
Number of pages10
Journalendocrine journal
Volume68
Issue number4
DOIs
Publication statusPublished - 2021

Keywords

  • Adrenocortical cell
  • Angiotensin II
  • Phosphofructokinase type platelet
  • Proteome analysis

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Endocrinology

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