科研之友
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摘要
Induced pluripotent stem cells (iPSCs) are an attractive cell source for regenerative medicine through cell therapy or drug screening. But application of iPSCs in regenerative medicine requires rapid and accurate characterization of iPSCs. Here, we demonstrate the detection of multiple antigens present in iPSC lysate using rapid, label-free surface plasmon resonance imaging (SPRi) assay. Validation of pluripotency is an important aspect of iPSC research. In this study, we fabricated antibody array against pluripotency biomarkers and found that our array successfully detect corresponding antigens in stem cell lysate. Each antibody recognized its specific antigens presented in iPSC lysates and a certain degree of variability was observed in comparison with other cell lysates. The results suggested that SPRi is a versatile technology feasible for the detection of multiple antigens presented in iPSC lysate. Further extension of this method may be applied in the characterization and high-throughput biomarker profiling of iPSCs.
