A novel antibody microarray format using non-covalent antibody immobilization with chemiluminescent detection
| Autor: | Kiyo Shimada, Kazue Usui-Aoki, Hisashi Koga |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Mice
Inbred ICR Luminescence Microarray biology Antibody microarray Protein Array Analysis Reverse phase protein lysate microarray Sensitivity and Specificity Molecular biology Antibodies Mice Complementary DNA Protein microarray biology.protein Animals DNA microarray Antibody Molecular Biology Biotechnology |
| Zdroj: | Mol. BioSyst.. 3:36-42 |
| ISSN: | 1742-2051 1742-206X |
| DOI: | 10.1039/b612492e |
| Popis: | To date, protein and antibody microarrays have been used in reverse-phase and sandwich-based methods in order to detect known proteins such as biomarkers in samples. Our group developed "libraries" of antibodies against unknown proteins, referred to as mKIAA proteins, and we attempted to discover candidate novel biomarkers by protein expression profiling.To profile mKIAA protein expression using these antibodies, we established an antibody microarray system using chemiluminescent detection. A number of techniques for protein-antibody microarrays have been reported; however, no entirely suitable protocol for crude protein samples has been established. To address this issue, we immobilized purified antibodies on hydrophilic surface polymer slides (Maxisorp, Nunc). Although our system is based on the direct labeling of crude protein samples, we achieved sufficient sensitivity (detection limit: 50 pg mL(-1)) and low backgrounds. This sensitivity is on a level with the sandwich immunoassay-based antibody array system. Using our protocol, we developed an antibody microarray spotted with 960 anti-mKIAA antibodies (total: 3888 spots for quadruplicate assessments), and we carried out protein expression profiling of mKIAA proteins. In this study, we generated an expression profile of 960 mKIAA proteins and compared the present results with those obtained via cDNA microarray. |
| Databáze: | OpenAIRE |
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