Cited by 62Nitric Oxide and Endothelin EffectsMitochondrial Function and PathologyAdipose Tissue and Metabolism

Nitrite activates AMP kinase to stimulate mitochondrial biogenesis independent of soluble guanylate cyclase

Open access
Mo, Li, Wang, Yinna, Geary, Lisa, Corey, Catherine, Alef, Matthew J., Beer-Stolz, Donna, Zuckerbraun, Brian S., Shiva, Sruti·2012·Free Radical Biology and Medicine

Abstract

Nitrite, a dietary constituent and endogenous signaling molecule, mediates a number of physiological responses including modulation of ischemia/reperfusion injury, glucose tolerance, and vascular remodeling. Although the exact molecular mechanisms underlying nitrite's actions are unknown, the current paradigm suggests that these effects depend on the hypoxic reduction of nitrite to nitric oxide (NO). Mitochondrial biogenesis is a fundamental mechanism of cellular adaptation and repair. However, the effect of nitrite on mitochondrial number has not been explored. Herein, we report that nitrite stimulates mitochondrial biogenesis through a mechanism distinct from that of NO. We demonstrate that nitrite significantly increases cellular mitochondrial number by augmenting the activity of adenylate kinase, resulting in AMP kinase phosphorylation, downstream activation of sirtuin-1, and deacetylation of PGC1α, the master regulator of mitochondrial biogenesis. Unlike NO, nitrite-mediated biogenesis does not require the activation of soluble guanylate cyclase and results in the synthesis of more functionally efficient mitochondria. Further, we provide evidence that nitrite mediates biogenesis in vivo. In a rat model of carotid injury, 2 weeks of continuous oral nitrite treatment postinjury prevented the hyperproliferative response of smooth muscle cells. This protection was accompanied by a nitrite-dependent upregulation of PGC1α and increased mitochondrial number in the injured artery. These data are the first to demonstrate that nitrite mediates differential signaling compared to NO. They show that nitrite is a versatile regulator of mitochondrial function and number both in vivo and in vitro and suggest that nitrite-mediated biogenesis may play a protective role in the setting of vascular injury.

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Crossref · 10.1016/j.freeradbiomed.2012.07.080

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  • Increased exposure to nitrate and nitrite has been reported to activate PGC1-α and adenosine monophosphate-activated protein kinase (AMPK) in skeletal muscle.

    “Increased exposure to NO 3 -and NO 2 -has been reported to activate PGC1-α (peroxisome proliferator-activated receptor γ coactivator 1-α) (129) and adenosine monophosphate-activated protein kinase (AMPK) (101) in skeletal muscle.”

    From Dietary Nitrate and Physical Performance (2018) · cites this paper as [101]

    The Results section, “Nitrite mediates biogenesis through activation of PGC1, SIRT1, and AMPK” (page unavailable), supports nitrite-dependent AMPK activation. But the Methods identify the experimental cells as rat aortic smooth muscle cells, not skeletal muscle; this source also does not establish the claimed effect of nitrate. In the citing sentence, this citation is attached to AMPK, while the PGC1-α claim has a separate citation. (LLM, conf=0.88)

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  • Multiple preclinical studies suggest nitrite may be effective for prevention and/or treatment of many cardiovascular disorders or risk factors for cardiovascular disease including peripheral artery disease, atherosclerosis, chronic heart failure, stroke, diabetes, and hypertension.

    “multiple studies in preclinical models suggest that nitrite also may be effective for the prevention and/or treatment of many cardiovascular disorders or risk factors for CVD including peripheral artery disease (4, 69, 146), atherosclerosis (2, 3, 5, 127), chronic heart failure (32, 122), stroke (50, 82, 150), diabetes (138), and hypertension (22, 57, 58, 128).”

    From Inorganic nitrite supplementation for healthy arterial aging (2014) · cites this paper as [127]

  • Nitrite-induced stimulation of mitochondrial biogenesis is associated with increases in AMPK and PGC1-α signaling in aortic smooth muscle cells in an experimental model of carotid artery injury.

    “A recent study reported nitrite-induced stimulation of mitochondrial biogenesis is associated with increases in adenosine monophosphate-activated protein kinase and peroxisome proliferator-activated receptor gamma coactivator 1-α signaling in aortic smooth muscle cells in an experimental model of carotid artery injury (127).”

    From Inorganic nitrite supplementation for healthy arterial aging (2014) · cites this paper as [127]

  • NO deficiency is associated with impaired mitochondrial function.

    “Emerging evidence suggests that NO deficiency is associated with impaired mitochondrial function”

    From Inorganic nitrite supplementation for healthy arterial aging (2014) · cites this paper as [127]

  • Restoration of NO bioavailability induces mitochondrial biogenesis.

    “and that restoration of NO bioavailability induces mitochondrial biogenesis (127, 135, 167, 168)”

    From Inorganic nitrite supplementation for healthy arterial aging (2014) · cites this paper as [127]

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Authors
Mo, L., Wang, Y., Geary, L., Corey, C., Alef, M. J., Beer-Stolz, D., Zuckerbraun, B. S., & Shiva, S.
Affiliations
University of Pittsburgh (US)
Corresponding author
Shiva, Sruti
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
2012-10
Volume
53
Issue
7
Pages
1440-1450
ISSN
0891-5849 (ISSN-L)
OpenAlex
W2068775181
Cited by
62
References
55
Citations by year
2026: 2 · 2024: 4 · 2023: 1 · 2022: 2 · 2021: 1 · 2020: 3 · 2019: 5 · 2018: 5 · 2017: 9 · 2016: 7 · 2015: 9 · 2014: 7 · 2013: 7
FWCI
4.93
Type
journal article
Language
en
Open access
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Heart, Lung, and Blood Institute (R01HL096973)
  • National Institute of General Medical Sciences (R01GM082830)
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
nitrite, mitochondrial biogenesis, AMP kinase, adenylate kinase, SIRT1, PGC-1α, soluble guanylate cyclase, nitric oxide, carotid artery injury, vascular smooth muscle cell proliferation, vascular remodeling
MeSH terms
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, Adenosine Triphosphate, Adenylate Kinase, Administration, Oral, Animals, Aorta, Carotid Arteries, Enzyme Activation, Guanylate Cyclase, Male, Mitochondria, Oxygen Consumption, Phosphorylation, Sodium Nitrite, Transcription Factors, Signal Transduction, Gene Expression, RNA-Binding Proteins, Rats, Sprague-Dawley, Reactive Oxygen Species, Carotid Artery Injuries, Myocytes, Smooth Muscle, Rats, Sirtuin 1, Primary Cell Culture, Mitochondrial Turnover

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