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Simultaneous Measurement of 92 Serum Protein Biomarkers for the Development of a Multiprotein Classifier for Ovarian Cancer Detection.
- Source :
-
Cancer prevention research (Philadelphia, Pa.) [Cancer Prev Res (Phila)] 2019 Mar; Vol. 12 (3), pp. 171-184. Date of Electronic Publication: 2019 Feb 01. - Publication Year :
- 2019
-
Abstract
- The best known ovarian cancer biomarker, CA125, is neither adequately sensitive nor specific for screening the general population. By using a combination of proteins for screening, it may be possible to increase the sensitivity and specificity over CA125 alone. In this study, we used Proseek Multiplex Oncology II plates to simultaneously measure the expression of 92 cancer-related proteins in serum using proximity extension assays. This technology combines the sensitivity of the PCR with the specificity of antibody-based detection methods, allowing multiplex biomarker detection and high-throughput quantification. We analyzed 1 μL of sera from each of 61 women with ovarian cancer and compared the values obtained with those from 88 age-matched healthy women. Principle component analysis and unsupervised hierarchical clustering separated the ovarian cancer patients from the healthy, with minimal misclassification. Data from the Proseek plates for CA125 levels exhibited a strong correlation with clinical values for CA125. We identified 52 proteins that differed significantly ( P < 0.006) between ovarian cancer and healthy samples, several of which are novel serum biomarkers for ovarian cancer. In total, 40 proteins had an estimated area under the ROC curve of 0.70 or greater, suggesting their potential to serve as biomarkers for ovarian cancer. CA125 alone achieved a sensitivity of 93.4% at a specificity of 98%. By adding the Oncology II values for five proteins to CA125 in a multiprotein classifier, we increased the assay sensitivity to 98.4% at a specificity of 98%, thereby improving the sensitivity and specificity of CA125 alone.<br /> (©2019 American Association for Cancer Research.)
- Subjects :
- Blood Proteins analysis
Case-Control Studies
Enzyme-Linked Immunosorbent Assay
Female
Humans
Ovarian Neoplasms pathology
Protein Array Analysis
ROC Curve
Biomarkers, Tumor analysis
Blood Proteins metabolism
Cystadenocarcinoma, Serous blood
Cystadenocarcinoma, Serous pathology
Ovarian Neoplasms blood
Ovarian Neoplasms classification
Subjects
Details
- Language :
- English
- ISSN :
- 1940-6215
- Volume :
- 12
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Cancer prevention research (Philadelphia, Pa.)
- Publication Type :
- Academic Journal
- Accession number :
- 30709840
- Full Text :
- https://doi.org/10.1158/1940-6207.CAPR-18-0221