What type of study is this?

This is a Animal Study study (also classified as: In Vitro Study, Pre-Registered Trial).

What question did this study set out to answer?

To develop an MSC-based approach for GvHD prophylaxis through exosome-mediated induction of regulatory T cells.

December 8, 2025BloodOpen Access

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In vitro and in vivo studies demonstrate that γSMCs improve survival in aGvHD models, suggesting effective GVHD prophylaxis.

To develop an MSC-based approach for GvHD prophylaxis through exosome-mediated induction of regulatory T cells.
Performed clinical studies with cryopreserved HPC and organ donor vertebral body-derived MSCs.
Conducted in vitro and in vivo studies using GvHD models to evaluate immunomodulatory effects of γSMCs.
Measured T cell activation and regulatory T cell induction with purified extracellular vesicles.
In vitro, γSMCs showed significantly better T cell suppression compared to unmodified MSCs.
EVs demonstrated dose-dependent increases in regulatory T cell induction and IL10 levels.
In vivo studies indicated improved survival in mice treated with γSMCs compared to controls.

Johnstone et al. (2025) studied this question.

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