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A 3-dimensional extracellular matrix as a delivery system for the transplantation of glioma-targeting neural stem/progenitor cells

Academic Article
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Overview

authors

  • Hansen, K.
  • Muller, F. J.
  • Messing, M.
  • Zeigler, F.
  • Loring, Jeanne
  • Lamszus, K.
  • Westphal, M.
  • Schmidt, N. O.

publication date

  • July 2010

journal

  • Neuro-Oncology  Journal

abstract

  • Neural stem/progenitor cells (NSPCs) display inherent pathotropic properties that can be exploited for targeted delivery of therapeutic genes to invasive malignancies in the central nervous system. Optimizing transplantation efficiency will be essential for developing relevant NSPC-based brain tumor therapies. To date, the real-world issue of handling and affixing NSPCs in the context of the neurosurgical resection cavity has not been addressed. Stem cell transplantation using biocompatible devices is a promising approach to counteract poor NSPC graft survival and integration in various types of neurological disorders. Here, we report the development of a 3-dimensional substrate that is based on extracellular matrix purified from tissue-engineered skin cultures (3DECM). 3DECM enables the expansion of embedded NSPCs in vitro while retaining their uncommitted differentiation status. When implanted in intracerebral glioma models, NSPCs were able to migrate out of the 3DECM to targeted glioma growing in the contralateral hemisphere, and this was more efficient than the delivery of NSPC by intracerebral injection of cell suspensions. Direct application of a 3DECM implant into a tumor resection cavity led to a marked NSPC infiltration of recurrent glioma. The semisolid consistency of the 3DECM implants allowed simple handling during the surgical procedure of intracerebral and intracavitary application and ensured continuous contact with the surrounding brain parenchyma. Here, we demonstrate proof-of-concept of a matrix-supported transplantation of tumor-targeting NSPC. The semisolid 3DECM as a delivery system for NSPC has the potential to increase transplantation efficiency by reducing metabolic stress and providing mechanical support, especially when administered to the surgical resection cavity after brain tumor removal.

subject areas

  • Animals
  • Brain Neoplasms
  • Cell Line, Tumor
  • Cells, Cultured
  • Extracellular Matrix
  • Glioma
  • Humans
  • Mice
  • Mice, Inbred C57BL
  • Mice, Nude
  • Neural Stem Cells
  • Stem Cell Transplantation
  • Xenograft Model Antitumor Assays
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Research

keywords

  • extracellular matrix
  • glioma
  • neural stem cells
  • tissue engineering
  • transplantation
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Identity

PubMed Central ID

  • PMC2940655

International Standard Serial Number (ISSN)

  • 1522-8517

Digital Object Identifier (DOI)

  • 10.1093/neuonc/noq002

PubMed ID

  • 20156807
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Additional Document Info

start page

  • 645

end page

  • 654

volume

  • 12

issue

  • 7

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