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Published on: April 27, 2010
Cell Profiling Based on Sugar-Chain-Cell Binding Interaction and Its Application to Typing and Quality Verification
Hiroyuki Shinchi1, Tomoya Nakamura1, Hayato Ota2
1Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Kohrimoto, Kagoshima, 890-0065, Japan.
Abstract:
Developing methods to determine cell type and cell state has been a significant challenge in the field of cancer diagnosis as well as in typing and quality verification for cultured cells. Herein, we report a cell profiling method based on binding interactions between cell-surface sugar-chain-binding proteins and sugar-chain-immobilized fluorescent nanoparticles (SFNPs), together with a method for cell typing and cell quality verification. Binding profiles of cells against sugar chains were analyzed by performing flow cytometry analysis with SFNPs. Discrimination analysis based on binding profiles could classify cell type and evaluate the quality of cultured cells. By applying our method to differentiated cells originating from conventional cell lines and also to mouse embryotic stem cells, we could detect the cells before and after differentiation. Our method can be utilized not only for the biofunctional analysis of cells but also for diagnosis of cancer cells and quality verification of cultured cells.
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