Cited by 201Protein Interaction Studies and Fluorescence AnalysisRedox biology and oxidative stressAntioxidant Activity and Oxidative Stress

Cys34-Cysteinylated Human Serum Albumin Is a Sensitive Plasma Marker in Oxidative Stress-Related Chronic Diseases

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Nagumo, Kohei, Tanaka, Motohiko, Chuang, Victor Tuan Giam, Setoyama, Hiroko, Watanabe, Hiroshi, Yamada, Naoyuki, Kubota, Kazuyuki, Tanaka, Motoko +9 more·2014·PLoS ONE

Abstract

The degree of oxidized cysteine (Cys) 34 in human serum albumin (HSA), as determined by high performance liquid chromatography (HPLC), is correlated with oxidative stress related pathological conditions. In order to further characterize the oxidation of Cys34-HSA at the molecular level and to develop a suitable analytical method for a rapid and sensitive clinical laboratory analysis, the use of electrospray ionization time-of-flight mass spectrometer (ESI-TOFMS) was evaluated. A marked increase in the cysteinylation of Cys34 occurs in chronic liver and kidney diseases and diabetes mellitus. A significant positive correlation was observed between the Cys-Cys34-HSA fraction of plasma samples obtained from 229 patients, as determined by ESI-TOFMS, and the degree of oxidized Cys34-HSA determined by HPLC. The Cys-Cys34-HSA fraction was significantly increased with the progression of liver cirrhosis, and was reduced by branched chain amino acids (BCAA) treatment. The changes in the Cys-Cys34-HSA fraction were significantly correlated with the alternations of the plasma levels of advanced oxidized protein products, an oxidative stress marker for proteins. The binding ability of endogenous substances (bilirubin and tryptophan) and drugs (warfarin and diazepam) to HSA purified from chronic liver disease patients were significantly suppressed but significantly improved by BCAA supplementation. Interestingly, the changes in this physiological function of HSA in chronic liver disease were correlated with the Cys-Cys34-HSA fraction. In conclusion, ESI-TOFMS is a suitable high throughput method for the rapid and sensitive quantification of Cys-Cys34-HSA in a large number of samples for evaluating oxidative stress related chronic disease progression or in response to a treatment.

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  • Elevated levels of cysteinylated albumin detected by mass spectrometry have been associated with kidney diseases and diabetes, and in addition, hepatic diseases.

    “Elevated levels of cysteinylated albumin detected by MS have been associated with kidney diseases and diabetes, and in addition, hepatic diseases (Nagumo et al. 2014).”

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Authors
Nagumo, K., Tanaka, M., Chuang, V. T. G., Setoyama, H., Watanabe, H., Yamada, N., Kubota, K., Tanaka, M., Matsushita, K., Yoshida, A., Jinnouchi, H., Anraku, M., Kadowaki, D., Ishima, Y., Sasaki, Y., Otagiri, M., & Maruyama, T.
Affiliations
  • Kumamoto University (JP)
  • Akebono Clinic (JP)
  • Curtin University (AU)
  • Ajinomoto (Japan) (JP)
  • Sojo University (JP)
Corresponding author
Maruyama, Toru
Venue
PLoS ONE
Published
2014-01-08
Volume
9
Issue
1
Pages
e85216
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2031985670
Cited by
201
References
41
Citations by year
2026: 13 · 2025: 10 · 2024: 13 · 2023: 17 · 2022: 19 · 2021: 29 · 2020: 22 · 2019: 18 · 2018: 15 · 2017: 14 · 2016: 15 · 2015: 12 · 2014: 4
FWCI
6.15
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • eSpace (Curtin University) (submittedVersion, cc-by)
Funders
Japan Society for the Promotion of Science (23790211, 25460190)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Interaction Studies and Fluorescence Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
Keywords
human serum albumin, oxidative stress, plasma biomarkers, chronic liver disease, liver cirrhosis, branched-chain amino acids, drug binding, warfarin, diazepam, bilirubin, tryptophan, diabetes mellitus, chronic kidney disease
MeSH terms
Aged, Amino Acids, Branched-Chain, Bilirubin, Chronic Disease, Cysteine, Diabetes Mellitus, Diazepam, Female, Humans, Liver Cirrhosis, Male, Middle Aged, Models, Molecular, Oxidation-Reduction, Protein Binding, Serum Albumin, Tryptophan, Warfarin, Biomarkers, Glycation End Products, Advanced, Oxidative Stress, Spectrometry, Mass, Electrospray Ionization, Renal Insufficiency

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