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Nano-Mechanics and Membrane Receptor Mapping of CD8 + T Cells (Supplementry Material)

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The investigation of nano-mechanical properties and nano-architectures of CD8 + T cells activated in vitro will help further interpret the immune response/recognition of these cells at nanoscale resolution. In this work, the local biophysical properties of human peripheral blood CD8 + T cells were obtained, revealing the adhesion force of membrane was increased after CD8 + T cells were stimulated with phorbol dibutyrate plus ionomycin, though the measured local stiffness for resting and activated cells was similar. The 3-D distribution pattern and grayscale map together revealed that membrane receptors (CD8 and activation marker CD69) distributed non-uniformly on the membrane and were shown as micro-, nano-scale clusters or domains. This work describes a relatively simple approach for exploiting the distribution pattern of receptor molecules on a single T cell surface.

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Keywords: CD8 + T cell; Force spectroscopy; molecule recognition; nano-mechanics; receptor mapping

Document Type: Research Article

Publication date: 01 November 2009

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  • Current Nanoscience publishes authoritative reviews and original research reports, written by experts in the field on all the most recent advances in nanoscience and nanotechnology. All aspects of the field are represented including nano- structures, synthesis, properties, assembly and devices. Applications of nanoscience in biotechnology, medicine, pharmaceuticals, physics, material science and electronics are also covered. The journal is essential to all involved in nanoscience and its applied areas.
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