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Human cluster of differentiation 63 (hCD63) is one of the tetraspanin receptors that is abundant on the surface of exosomes. Exosomes are involved in cell-to-cell communication, including from cancer cells to normal cells. It is very important to detect exosomes as a marker for the diagnosis of various diseases. In this study, we report the generation and characterization of a monoclonal antibody (mAb) against the extracellular domain of hCD63 using DNA immunization. This mAb, clone 1C8-2B11, exhibits high performance for use in immunofluorescence and flow cytometry, and it has 10-fold higher affinity than the control antibody that is commercially available. mAb 1C8-2B11 has great potential to be a tool for research and clinical diagnosis.
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Liu et al. (2020) studied this question.
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