A microfluidic immunostaining system enables quality assured and standardized immunohistochemical biomarker analysis

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Immunohistochemistry (IHC) plays an important role in biomarker-driven cancer therapy. Although there has been a high demand for standardized and quality assured IHC, it has rarely been achieved due to the complexity of IHC testing and the subjective validation-based process flow of IHC quality control. We present here a microfluidic immunostaining system for the standardization of IHC by creating a microfluidic linearly graded antibody (Ab)-staining device and a reference cell microarray. Unlike conventional efforts, our system deals primarily with the screening of biomarker staining conditions for quantitative quality assurance testing in IHC. We characterized the microfluidic matching of Ab staining intensity using three HER2 Abs produced by different manufacturers. The quality of HER2 Ab was also validated using tissues of breast cancer patients, demonstrating that our system is an efficient and powerful tool for the standardization and quality assurance of IHC.
Publisher
NATURE PUBLISHING GROUP
Issue Date
2017-04
Language
English
Article Type
Article
Citation

SCIENTIFIC REPORTS, v.7, pp.45968

ISSN
2045-2322
DOI
10.1038/srep45968
URI
http://hdl.handle.net/10203/223590
Appears in Collection
BiS-Journal Papers(저널논문)
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