Microencapsulated cell tracking

Research output: Contribution to journalArticlepeer-review

Abstract

Microencapsulation of therapeutic cells has been widely pursued to achieve cellular immunoprotection following transplantation. Initial clinical studies have shown the potential of microencapsulation using semi-permeable alginate layers, but much needs to be learned about the optimal delivery route, in vivo pattern of engraftment, and microcapsule stability over time. In parallel with noninvasive imaging techniques for 'naked' (i.e. unencapsulated) cell tracking, microcapsules have now been endowed with contrast agents that can be visualized by 1H MRI, 19F MRI, X-ray/computed tomography and ultrasound imaging. By placing the contrast agent formulation in the extracellular space of the hydrogel, large amounts of contrast agents can be incorporated with negligible toxicity. This has led to a new generation of imaging biomaterials that can render cells visible with multiple imaging modalities.

Original languageEnglish (US)
Pages (from-to)850-859
Number of pages10
JournalNMR in biomedicine
Volume26
Issue number7
DOIs
StatePublished - Jul 2013

Keywords

  • Cell therapy
  • Computed tomography
  • Contrast agent
  • Diabetes
  • Islet cell transplantation
  • MRI
  • Microcapsules
  • Ultrasound imaging

ASJC Scopus subject areas

  • Molecular Medicine
  • Radiology Nuclear Medicine and imaging
  • Spectroscopy

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