Pooling serum samples may lead to loss of potential biomarkers in SELDI-ToF MS proteomic profiling.
Proteome Sci
; 6: 16, 2008 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-18513446
ABSTRACT
BACKGROUND:
High throughput proteomic technology offers promise for the detection of disease biomarkers and proteomic signature patterns but biomarker discovery studies can be limited by cost factors when large sample size numbers are required. Pooling sera or plasma samples from disease cases potentially offers a solution to cost implications by reducing the standard errors of mass to charge values. Surface enhanced laser desorption/ionization time of flight (SELDI-ToF) mass spectra obtained from individual and pooled sera from invasive aspergillosis cases and controls were compared.RESULTS:
Pooling resulted in 50% loss of peak clusters detected in individual samples. Overall, loss was greatest for low intensity clusters. Peak intensities and casecontrol intensity ratios, among clusters not lost, demonstrated good reproducibility.CONCLUSION:
Pooling sera results in significant potential biomarker loss when using SELDI-ToF MS.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Proteome Sci
Ano de publicação:
2008
Tipo de documento:
Article