Use of Proteomic and Hematology Biomarkers for Prediction of Hematopoietic Acute Radiation Syndrome Severity in Baboon Radiation Models
| Autor: | Michael Abend, George Sigal, Francis Herodin, Jeff D. Debad, Michel Drouet, William F. Blakely, David L. Bolduc, Marco Valente, Matthias Port |
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| Rok vydání: | 2018 |
| Předmět: |
Male
Proteomics medicine.medical_specialty Proteome Epidemiology Health Toxicology and Mutagenesis Severity of Illness Index Gastroenterology Procalcitonin 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Internal medicine Severity of illness Animals Medicine Radiology Nuclear Medicine and imaging Serum amyloid A Hematology business.industry Acute Radiation Syndrome Dose-Response Relationship Radiation Stepwise regression Dose–response relationship Gamma Rays Erythropoietin 030220 oncology & carcinogenesis business Algorithms Biomarkers Whole-Body Irradiation Papio medicine.drug |
| Zdroj: | Health Physics. 115:29-36 |
| ISSN: | 1538-5159 0017-9078 |
| DOI: | 10.1097/hp.0000000000000819 |
| Popis: | Use of plasma proteomic and hematological biomarkers represents a promising approach to provide useful diagnostic information for assessment of the severity of hematopoietic acute radiation syndrome. Eighteen baboons were evaluated in a radiation model that underwent total-body and partial-body irradiations at doses of Co gamma rays from 2.5 to 15 Gy at dose rates of 6.25 cGy min and 32 cGy min. Hematopoietic acute radiation syndrome severity levels determined by an analysis of blood count changes measured up to 60 d after irradiation were used to gauge overall hematopoietic acute radiation syndrome severity classifications. A panel of protein biomarkers was measured on plasma samples collected at 0 to 28 d after exposure using electrochemiluminescence-detection technology. The database was split into two distinct groups (i.e., "calibration," n = 11; "validation," n = 7). The calibration database was used in an initial stepwise regression multivariate model-fitting approach followed by down selection of biomarkers for identification of subpanels of hematopoietic acute radiation syndrome-responsive biomarkers for three time windows (i.e., 0-2 d, 2-7 d, 7-28 d). Model 1 (0-2 d) includes log C-reactive protein (p < 0.0001), log interleukin-13 (p < 0.0054), and procalcitonin (p < 0.0316) biomarkers; model 2 (2-7 d) includes log CD27 (p < 0.0001), log FMS-related tyrosine kinase 3 ligand (p < 0.0001), log serum amyloid A (p < 0.0007), and log interleukin-6 (p < 0.0002); and model 3 (7-28 d) includes log CD27 (p < 0.0012), log serum amyloid A (p < 0.0002), log erythropoietin (p < 0.0001), and log CD177 (p < 0.0001). The predicted risk of radiation injury categorization values, representing the hematopoietic acute radiation syndrome severity outcome for the three models, produced least squares multiple regression fit confidences of R = 0.73, 0.82, and 0.75, respectively. The resultant algorithms support the proof of concept that plasma proteomic biomarkers can supplement clinical signs and symptoms to assess hematopoietic acute radiation syndrome risk severity. |
| Databáze: | OpenAIRE |
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