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Open Access Publications from the University of California

Single step isolation and activation of primary CD3+ T lymphocytes using alcohol-dispersed electrospun magnetic nanofibers.

  • Author(s): Kim, Kwanghee
  • An, Hyo Jin
  • Jun, Seung-Hyun
  • Kim, Tae-Jin
  • Lim, Seon Ah
  • Park, Gayoung
  • Na, Hyon Bin
  • Park, Yong Il
  • Hyeon, Taeghwan
  • Yee, Cassian
  • Bluestone, Jeffrey A
  • Kim, Jungbae
  • Lee, Kyung-Mi
  • et al.

Published Web Location

Electrospun polymer nanofibers with entrapped magnetic nanoparticles (magnetic NP-NF) represent a novel scaffold substrate that can be functionalized for single-step isolation and activation of specific lymphocyte subsets. Using a surface-embedded T cell receptor ligand/trigger (anti-CD3 monoclonal antibody), we demonstrate, as proof of principle, the use of magnetic NP-NF to specifically isolate, enrich, and activate CD3(+) T cells from a heterogeneous cell mixture, leading to preferential expansion of CD8(+)CD3(+) T cells. The large surface area, adjustable antibody density, and embedded paramagnetic properties of the NP-NF permitted enhanced activation and expansion; its use represents a strategy that is amenable to an efficient selection process for adoptive cellular therapy as well as for the isolation of other cellular subsets for downstream translational applications.

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