Oxidation of erythrocyte glutathione by monocytes stimulated with interleukin-6 - analysis by h-1 spin echo nmr

C.M. Spickett, W.E. Smith, J. Reglinski, R. Wilson, J.J. Walker

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

1H spin echo NMR was used to follow the release of reactive oxygen species (ROS) from human monocytes by monitoring erythrocyte glutathione status, which is sensitive to applied oxidative stress. This allowed the ability of the cytokine interleukin-6 (IL-6) to stimulate release of ROS from monocytes to be assessed in terms of oxidative damage to other cells, providing an estimation of its importance in vivo. It was found that incubation of monocytes with erythrocytes in the presence of IL-6 resulted in oxidation of the erythrocyte glutathione pool, indicating that oxidants are released in sufficient amounts to cause oxidative stress. High levels of IL-6 occurring in plasma of women with severe pre-eclampsia could therefore be responsible for depleted plasma antioxidants and haemolysis. The oxidation of erythrocyte glutathione was inhibited by the presence of the cyclooxygenase inhibitor indomethacin, suggesting that this may be of value in the treatment of oxidative pathologies.
Original languageEnglish
Pages (from-to)115-124
Number of pages9
JournalClinica Chimica Acta
Volume270
Issue number2
DOIs
Publication statusPublished - 23 Feb 1998

Fingerprint

Glutathione
Monocytes
Interleukin-6
Oxidative stress
Erythrocytes
Oxidation
Reactive Oxygen Species
Plasmas
Oxidative Stress
Cyclooxygenase Inhibitors
Pathology
Oxidants
Indomethacin
Antioxidants
Hemolysis
Pre-Eclampsia
Nuclear magnetic resonance
Cytokines
Monitoring
Therapeutics

Keywords

  • H-1-NMR
  • oxidative stress
  • monocyte
  • IL-6
  • glutathione
  • indomethacin

Cite this

Spickett, C.M. ; Smith, W.E. ; Reglinski, J. ; Wilson, R. ; Walker, J.J. / Oxidation of erythrocyte glutathione by monocytes stimulated with interleukin-6 - analysis by h-1 spin echo nmr. In: Clinica Chimica Acta. 1998 ; Vol. 270, No. 2. pp. 115-124.
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Oxidation of erythrocyte glutathione by monocytes stimulated with interleukin-6 - analysis by h-1 spin echo nmr. / Spickett, C.M.; Smith, W.E.; Reglinski, J.; Wilson, R.; Walker, J.J.

In: Clinica Chimica Acta, Vol. 270, No. 2, 23.02.1998, p. 115-124.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Oxidation of erythrocyte glutathione by monocytes stimulated with interleukin-6 - analysis by h-1 spin echo nmr

AU - Spickett, C.M.

AU - Smith, W.E.

AU - Reglinski, J.

AU - Wilson, R.

AU - Walker, J.J.

PY - 1998/2/23

Y1 - 1998/2/23

N2 - 1H spin echo NMR was used to follow the release of reactive oxygen species (ROS) from human monocytes by monitoring erythrocyte glutathione status, which is sensitive to applied oxidative stress. This allowed the ability of the cytokine interleukin-6 (IL-6) to stimulate release of ROS from monocytes to be assessed in terms of oxidative damage to other cells, providing an estimation of its importance in vivo. It was found that incubation of monocytes with erythrocytes in the presence of IL-6 resulted in oxidation of the erythrocyte glutathione pool, indicating that oxidants are released in sufficient amounts to cause oxidative stress. High levels of IL-6 occurring in plasma of women with severe pre-eclampsia could therefore be responsible for depleted plasma antioxidants and haemolysis. The oxidation of erythrocyte glutathione was inhibited by the presence of the cyclooxygenase inhibitor indomethacin, suggesting that this may be of value in the treatment of oxidative pathologies.

AB - 1H spin echo NMR was used to follow the release of reactive oxygen species (ROS) from human monocytes by monitoring erythrocyte glutathione status, which is sensitive to applied oxidative stress. This allowed the ability of the cytokine interleukin-6 (IL-6) to stimulate release of ROS from monocytes to be assessed in terms of oxidative damage to other cells, providing an estimation of its importance in vivo. It was found that incubation of monocytes with erythrocytes in the presence of IL-6 resulted in oxidation of the erythrocyte glutathione pool, indicating that oxidants are released in sufficient amounts to cause oxidative stress. High levels of IL-6 occurring in plasma of women with severe pre-eclampsia could therefore be responsible for depleted plasma antioxidants and haemolysis. The oxidation of erythrocyte glutathione was inhibited by the presence of the cyclooxygenase inhibitor indomethacin, suggesting that this may be of value in the treatment of oxidative pathologies.

KW - H-1-NMR

KW - oxidative stress

KW - monocyte

KW - IL-6

KW - glutathione

KW - indomethacin

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U2 - 10.1016/S0009-8981(97)00210-6

DO - 10.1016/S0009-8981(97)00210-6

M3 - Article

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EP - 124

JO - Clinica Chimica Acta

JF - Clinica Chimica Acta

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