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Cymerus™ iPSC-MSCs significantly prolong survival in a pre-clinical, humanized mouse model of Graft-vs-host disease.

E Ilker Ozay | Jyothi Vijayaraghavan | Gabriela Gonzalez-Perez | Sudarvili Shanthalingam | Heather L Sherman | Daniel T Garrigan | Karthik Chandiran | Joe A Torres | Barbara A Osborne | Gregory N Tew | Igor I Slukvin | Ross A Macdonald | Kilian Kelly | Lisa M Minter
Stem cell research | 2019

The immune-mediated tissue destruction of graft-vs-host disease (GvHD) remains a major barrier to greater use of hematopoietic stem cell transplantation (HSCT). Mesenchymal stem cells (MSCs) have intrinsic immunosuppressive qualities and are being actively investigated as a therapeutic strategy for treating GvHD. We characterized Cymerus™ MSCs, which are derived from adult, induced pluripotent stem cells (iPSCs), and show they display surface markers and tri-lineage differentiation consistent with MSCs isolated from bone marrow (BM). Administering iPSC-MSCs altered phosphorylation and cellular localization of the T cell-specific kinase, Protein Kinase C theta (PKCθ), attenuated disease severity, and prolonged survival in a humanized mouse model of GvHD. Finally, we evaluated a constellation of pro-inflammatory molecules on circulating PBMCs that correlated closely with disease progression and which may serve as biomarkers to monitor therapeutic response. Altogether, our data suggest Cymerus iPSC-MSCs offer the potential for an off-the-shelf, cell-based therapy to treat GvHD.

Pubmed ID: 30738321

Research resources used in this publication

None found

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Associated grants

  • Agency: NCI NIH HHS, United States
    Id: P01 CA166009
  • Agency: NIGMS NIH HHS, United States
    Id: T32 GM108556
  • Agency: NIGMS NIH HHS, United States
    Id: T32 GM135096

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FlowJo (tool)

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Software for single-cell flow cytometry analysis. Its functions include management, display, manipulation, analysis and publication of the data stream produced by flow and mass cytometers.

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NSG-HLA-A2/HHD (NOD.Cg-Prkdcscid Il2rgtm1Wjl Tg(HLA-A/H2-D/B2M)1Dvs/SzJ) (tool)

RRID:BCBC_4611

NSG-HLA-A2/HHD mutant mice are immunodeficient and express human HLA class 1 heavy and light chains. This strain may be useful as a human hematopoietic engraftment host that supports the maturation of human T cells with transplantation http://jaxmice.jax.org/strain/014570.html.

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