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Review
. 2008 May;30(3):121-7.
doi: 10.1016/j.jaut.2007.12.008. Epub 2008 Jan 31.

Cell and gene therapy using mesenchymal stem cells (MSCs)

Keiya Ozawa  1 , Kazuya Sato, Iekuni Oh, Katsutoshi Ozaki, Ryosuke Uchibori, Yoko Obara, Yuji Kikuchi, Takayuki Ito, Takashi Okada, Masashi Urabe, Hiroaki Mizukami, Akihiro Kume
Affiliations
Review

Cell and gene therapy using mesenchymal stem cells (MSCs)

Keiya Ozawa et al. J Autoimmun. 2008 May.

Abstract

Mesenchymal stem cells (MSCs) are considered to be a promising platform for cell and gene therapy for a variety of diseases. First, in the field of hematopoietic stem cell transplantation, there are two applications of MSCs: 1) the improvement of stem cell engrafting and the acceleration of hematopoietic reconstitution based on the hematopoiesis-supporting ability; and 2) the treatment of severe graft-versus-host disease (GVHD) based on the immunomodulatory ability. Regarding the immunosuppressive ability, we found that nitric oxide (NO) is involved in the MSC-mediated suppression of T cell proliferation. Second, tumor-bearing nude mice were injected with luciferase-expressing MSCs. An in vivo imaging analysis showed the significant accumulation of the MSCs at the site of tumors. The findings suggest that MSCs can be utilized to target metastatic tumors and to deliver anti-cancer molecules locally. As the third application, MSCs may be utilized as a cellular vehicle for protein-supplement gene therapy. When long-term transgene expression is needed, a therapeutic gene should be introduced with a minimal risk of insertional mutagenesis. To this end, site-specific integration into the AAVS1 locus on the chromosome 19 (19q13.4) by using the integration machinery of adeno-associated virus (AAV) would be particularly valuable. There will be wide-ranging applications of MSCs to frontier medical treatments in the near future.

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