Cited by 518Bone Metabolism and DiseasesNitric Oxide and Endothelin EffectsBone health and osteoporosis research

Nitric oxide and bone

Open access
Van'T Hof, Rob J., Ralston, Stuart H.·2001·Immunology

Abstract

Nitric oxide (NO) is a free radical which has important effects on bone cell function. The endothelial isoform of nitric oxide synthase (eNOS) is widely expressed in bone on a constitutive basis, whereas inducible NOS is only expressed in response to inflammatory stimuli. It is currently unclear whether neuronal NOS is expressed by bone cells. Pro-inflammatory cytokines such as IL-1 and TNF cause activation of the iNOS pathway in bone cells and NO derived from this pathway potentiates cytokine and inflammation induced bone loss. These actions of NO are relevant to the pathogenesis of osteoporosis in inflammatory diseases such as rheumatoid arthritis, which are characterized by increased NO production and cytokine activation. Interferon gamma is a particularly potent stimulator of NO production when combined with other cytokines, causing very high concentrations of NO to be produced. These high levels of NO inhibit bone resorption and formation and may act to suppress bone turnover in severe inflammation. The eNOS isoform seems to play a key role in regulating osteoblast activity and bone formation since eNOS knockout mice have osteoporosis due to defective bone formation. Other studies have indicated that the NO derived from the eNOS pathway acts as a mediator of the effects of oestrogen in bone. eNOS also mediates the effects of mechanical loading on the skeleton where it acts along with prostaglandins, to promote bone formation and suppress bone resorption. Pharmacological NO donors have been shown to increase bone mass in experimental animals and preliminary evidence suggests that these agents may also influence bone turnover in man. These data indicate that the L-arginine/NO pathway represents a novel target for therapeutic intervention in the prevention and treatment of bone diseases.

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Crossref · 10.1046/j.1365-2567.2001.01261.x

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  • The implications of NOS-mediated NO in the regulation of bone cell function have been well described in a number of publications.

    “The implications of NOS-mediated NO in the regulation of bone cell function have been well described in a number of publications [157].”

    From NO-Rich Diet for Lifestyle-Related Diseases (2015) · cites this paper as [157]

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Research works printed but not linked: 3

  1. MacIntyre I, Zaidi M, Towhidul Alam ASM, Datta HK, Moonga BS, Lidbury PS, Hecker M, Vane JM. Osteoclast inhibition: an action of nitric oxide not mediated by cyclic GMP. Proc Natl Acad Sci USA 1991; 88:2936±40.
  2. Armour KJ, van Armour KE, van't Hof RJ, Reid DM, Wei X-Q, Liew FY, Ralston SH. The effects of growth and ovariectomy on bone mineral density in inducible nitric oxide synthase de®cient mice. J Bone Mineral Res 2000; 15:S521.
  3. Lubberts E, Joosten LA, van de Loo FA, van den Gersselaar LA, van den Berg WB. Reduction of interleukin-17-induced inhibition of chondrocyte proteoglycan synthesis in intact murine articular cartilage by interleukin-4. Arthritis Rheum 2000; 43:1300±6.

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Authors
Van'T Hof, R. J., & Ralston, S. H.
Affiliations
University of Aberdeen (GB)
Venue
Immunology
Publisher
Wiley
Published
2001-07
Volume
103
Issue
3
Pages
255-261
ISSN
  • 0019-2805 (ISSN-L)
  • 1365-2567
OpenAlex
W2071823872
Cited by
518
References
86
Citations by year
2026: 13 · 2025: 17 · 2024: 9 · 2023: 15 · 2022: 15 · 2021: 23 · 2020: 13 · 2019: 16 · 2018: 21 · 2017: 11 · 2016: 11 · 2015: 17 · 2014: 26 · 2013: 27 · 2012: 20
FWCI
1.60
Type
journal article
Language
en
Open access
Locations
  • Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, other-oa)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
Keywords
nitric oxide, bone, nitric oxide synthase, endothelial nitric oxide synthase, inducible nitric oxide synthase, neuronal nitric oxide synthase, osteoporosis, rheumatoid arthritis, inflammatory cytokines, interferon-gamma, bone resorption, bone formation, osteoblasts, estrogen, mechanical loading, prostaglandins, nitric oxide donors, L-arginine, bone turnover, inflammation
MeSH terms
Arthritis, Rheumatoid, Bone and Bones, Bone Development, Bone Resorption, Estrogens, Humans, Nitric Oxide

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