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First Qualification Study of Serum Biomarkers as Indicators of Total Body Burden of Osteoarthritis
BACKGROUND: Osteoarthritis (OA) is a debilitating chronic multijoint disease of global proportions. OA presence and severity is usually documented by x-ray imaging but whole body imaging is impractical due to radiation exposure, time and cost. Systemic (serum or urine) biomarkers offer a potential a...
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Formato: | Texto |
Lenguaje: | English |
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Public Library of Science
2010
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2840035/ https://www.ncbi.nlm.nih.gov/pubmed/20305824 http://dx.doi.org/10.1371/journal.pone.0009739 |
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author | Kraus, Virginia B. Kepler, Thomas B. Stabler, Thomas Renner, Jordan Jordan, Joanne |
author_facet | Kraus, Virginia B. Kepler, Thomas B. Stabler, Thomas Renner, Jordan Jordan, Joanne |
author_sort | Kraus, Virginia B. |
collection | PubMed |
description | BACKGROUND: Osteoarthritis (OA) is a debilitating chronic multijoint disease of global proportions. OA presence and severity is usually documented by x-ray imaging but whole body imaging is impractical due to radiation exposure, time and cost. Systemic (serum or urine) biomarkers offer a potential alternative method of quantifying total body burden of disease but no OA-related biomarker has ever been stringently qualified to determine the feasibility of this approach. The goal of this study was to evaluate the ability of three OA-related biomarkers to predict various forms or subspecies of OA and total body burden of disease. METHODOLOGY/PRINCIPAL FINDINGS: Female participants (461) with clinical hand OA underwent radiography of hands, hips, knees and lumbar spine; x-rays were comprehensively scored for OA features of osteophyte and joint space narrowing. Three OA-related biomarkers, serum hyaluronan (sHA), cartilage oligomeric matrix protein (sCOMP), and urinary C-telopeptide of type II collagen (uCTX2), were measured by ELISA. sHA, sCOMP and uCTX2 correlated positively with total osteophyte burden in models accounting for demographics (age, weight, height): R(2) = 0.60, R(2) = 0.47, R(2) = 0.51 (all p<10(−6)); sCOMP correlated negatively with total joint space narrowing burden: R(2) = 0.69 (p<10(−6)). Biomarkers and demographics predicted 35–38% of variance in total burden of OA (total joint space narrowing or osteophyte). Joint size did not determine the contribution to the systemic biomarker concentration. Biomarker correlation with disease in the lumbar spine resembled that in the rest of the skeleton. CONCLUSIONS/SIGNIFICANCE: We have suspected that the correlation of systemic biomarkers with disease has been hampered by the inability to fully phenotype the burden of OA in a patient. These results confirm the hypothesis, revealed upon adequate patient phenotyping, that systemic joint tissue concentrations of several biomarkers can be quantitative indicators of specific subspecies of OA and of total body burden of disease. |
format | Text |
id | pubmed-2840035 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-28400352010-03-20 First Qualification Study of Serum Biomarkers as Indicators of Total Body Burden of Osteoarthritis Kraus, Virginia B. Kepler, Thomas B. Stabler, Thomas Renner, Jordan Jordan, Joanne PLoS One Research Article BACKGROUND: Osteoarthritis (OA) is a debilitating chronic multijoint disease of global proportions. OA presence and severity is usually documented by x-ray imaging but whole body imaging is impractical due to radiation exposure, time and cost. Systemic (serum or urine) biomarkers offer a potential alternative method of quantifying total body burden of disease but no OA-related biomarker has ever been stringently qualified to determine the feasibility of this approach. The goal of this study was to evaluate the ability of three OA-related biomarkers to predict various forms or subspecies of OA and total body burden of disease. METHODOLOGY/PRINCIPAL FINDINGS: Female participants (461) with clinical hand OA underwent radiography of hands, hips, knees and lumbar spine; x-rays were comprehensively scored for OA features of osteophyte and joint space narrowing. Three OA-related biomarkers, serum hyaluronan (sHA), cartilage oligomeric matrix protein (sCOMP), and urinary C-telopeptide of type II collagen (uCTX2), were measured by ELISA. sHA, sCOMP and uCTX2 correlated positively with total osteophyte burden in models accounting for demographics (age, weight, height): R(2) = 0.60, R(2) = 0.47, R(2) = 0.51 (all p<10(−6)); sCOMP correlated negatively with total joint space narrowing burden: R(2) = 0.69 (p<10(−6)). Biomarkers and demographics predicted 35–38% of variance in total burden of OA (total joint space narrowing or osteophyte). Joint size did not determine the contribution to the systemic biomarker concentration. Biomarker correlation with disease in the lumbar spine resembled that in the rest of the skeleton. CONCLUSIONS/SIGNIFICANCE: We have suspected that the correlation of systemic biomarkers with disease has been hampered by the inability to fully phenotype the burden of OA in a patient. These results confirm the hypothesis, revealed upon adequate patient phenotyping, that systemic joint tissue concentrations of several biomarkers can be quantitative indicators of specific subspecies of OA and of total body burden of disease. Public Library of Science 2010-03-17 /pmc/articles/PMC2840035/ /pubmed/20305824 http://dx.doi.org/10.1371/journal.pone.0009739 Text en Kraus et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Kraus, Virginia B. Kepler, Thomas B. Stabler, Thomas Renner, Jordan Jordan, Joanne First Qualification Study of Serum Biomarkers as Indicators of Total Body Burden of Osteoarthritis |
title | First Qualification Study of Serum Biomarkers as Indicators of Total Body Burden of Osteoarthritis |
title_full | First Qualification Study of Serum Biomarkers as Indicators of Total Body Burden of Osteoarthritis |
title_fullStr | First Qualification Study of Serum Biomarkers as Indicators of Total Body Burden of Osteoarthritis |
title_full_unstemmed | First Qualification Study of Serum Biomarkers as Indicators of Total Body Burden of Osteoarthritis |
title_short | First Qualification Study of Serum Biomarkers as Indicators of Total Body Burden of Osteoarthritis |
title_sort | first qualification study of serum biomarkers as indicators of total body burden of osteoarthritis |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2840035/ https://www.ncbi.nlm.nih.gov/pubmed/20305824 http://dx.doi.org/10.1371/journal.pone.0009739 |
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