Magnetic manipulation device for the optimization of cell processing conditions

Hiroshi Ito, Ryuji Kato, Kosuke Ino, Hiroyuki Honda

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Variability in human cell phenotypes make it's advancements in optimized cell processing necessary for personalized cell therapy. Here we propose a strategy of palm-top sized device to assist physically manipulating cells for optimizing cell preparations. For the design of such a device, we combined two conventional approaches: multi-well plate formatting and magnetic cell handling using magnetite cationic liposomes (MCLs). From our previous works, we showed the labeling applications of MCL on adhesive cells for various tissue engineering approaches. To feasibly transfer cells in multi-well plate, we here evaluated the magnetic response of MCL-labeled suspension type cells. The cell handling performance of Jurkat cells proved to be faster and more robust compared to MACS (Magnetic Cell Sorting) bead methods. To further confirm our strategy, prototype palm-top sized device "magnetic manipulation device (MMD)" was designed. In the device, the actual cell transportation efficacy of Jurkat cells was satisfying. Moreover, as a model of the most distributed clinical cell processing, primary peripheral blood mononuclear cells (PBMCs) from different volunteers were evaluated. By MMD, individual PBMCs indicated to have optimum Interleukin-2 (IL-2) concentrations for the expansion. Such huge differences of individual cells indicated that MMD, our proposing efficient and self-contained support tool, could assist the feasible and cost-effective optimization of cell processing in clinical facilities.

Original languageEnglish
Pages (from-to)182-188
Number of pages7
JournalJournal of Bioscience and Bioengineering
Issue number2
Publication statusPublished - 2010 Feb


  • Cell therapy
  • Magnetic beads
  • Magnetic cell manipulation
  • Peripheral blood mononuclear cells
  • T cell activation


Dive into the research topics of 'Magnetic manipulation device for the optimization of cell processing conditions'. Together they form a unique fingerprint.

Cite this