Soluble (pro)renin receptor and obstructive sleep apnea syndrome: Oxidative stress in brain?

Kazuhiro Takahashi, Koji Ohba, Kazuki Tajima, Tsuguo Nishijima, Shigeru Sakurai

Research output: Contribution to journalReview articlepeer-review

8 Citations (Scopus)

Abstract

(Pro)renin receptor ((P)RR) is a multi-functional molecule that is related to both the renin-angiotensin system (RAS) and vacuolar H+-ATPase (v-ATPase), an ATP-dependent multi-subunit proton pump. Soluble (P)RR (s(P)RR), which consists of the extracellular domain of (P)RR, is present in blood and urine. Elevated plasma s(P)RR concentrations are reported in patients with chronic kidney disease and pregnant women with hypertension or diabetes mellitus. In addition, we have shown that plasma s(P)RR concentrations are elevated in patients with obstructive sleep apnea syndrome (OSAS). Interestingly, the levels are elevated in parallel with the severity of OSAS, but are not related to the presence of hypertension or the status of the circulating RAS in OSAS. It is known that v-ATPase activity protects cells from endogenous oxidative stress, and loss of v-ATPase activity results in chronic oxidative stress. We hypothesize that hypoxia and subsequent oxidative stress, perhaps in the brain, may be one of the factors that elevate plasma s(P)RR levels in OSAS.

Original languageEnglish
Article number1313
JournalInternational journal of molecular sciences
Volume18
Issue number6
DOIs
Publication statusPublished - 2017 Jun 20

Keywords

  • (Pro)renin receptor
  • Obstructive sleep apnea syndrome
  • Oxidative stress
  • Prorenin

ASJC Scopus subject areas

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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