Tracking inflammation-induced mobilization of mesenchymal stem cells.

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

The act of migration is similar for many cell types. The migratory mechanism of mesenchymal stem cells (MSC) is not completely elucidated, yet many of the initial studies have been based on current understanding of the leukocyte migration. A normal function of MSC is the ability of the cell to migrate to and repair wounded tissue. This wound healing property of MSC originates with migration towards inflammatory signals produced by the wounded environment [1]. A tumor and its microenvironment are capable of eliciting a similar inflammatory response from the MSC, thus resulting in migration of the MSC towards the tumor microenvironment. We have shown MSC migration both in vitro and in vivo. In this chapter, we elucidate several in vivo methods to study MSC migration and mobilization to the tumor microenvironment. The first model is an exogenous model of MSC migration that can be performed in both xenograft and syngenic systems with in vitro expanded MSC. The second model utilizes transgenic-fluorescent--colored mice to follow endogenous bone marrow components including MSC. The third technique enables us to analyze data from the transgenic model through multispectral imaging. Furthermore, the migratory phenotype of MSC can be exploited for use in tumor-targeted gene delivery therapy has been efficacious in animal model studies and is an anticipated therapeutic device in clinical

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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