A decreased positivity for CD90 on human mesenchymal stromal cells (MSCs) is associated with a loss of immunosuppressive activity by MSCs

Diana Campioni, Roberta Rizzo, Marina Stignani, Loredana Melchiorri, Luisa Ferrari, Sabrina Moretti, Antonio Russo, Gian Paolo Bagnara, Laura Bonsi, Francesco Alviano, Giacomo Lanzoni, Antonio Cuneo, Olavio R. Baricordi, Francesco Lanza

Research output: Contribution to journalArticlepeer-review

78 Scopus citations

Abstract

Biologic and clinical interest in human mesenchymal stromal cells (hMSC) has risen over the last years, mainly due to their immunosuppressive properties. In this study, we investigated the basis of immunomodulant possible variability using hMSC from different sources (amniotic membrane, chorion, and bone marrow from either healthy subjects or patients with hematological malignancies, HM) and having discordant positivity for several immunological markers. The CD90+ hMSC reduced lymphoproliferative response in phytohemagglutinin (PHA) activated peripheral blood mononuclear cells (PBMC) via sHLA-G and IL-10 up-modulation. On the contrary, hMSC showing a significantly lower expression for CD90 antigen, elicited a lymphoproliferative allogeneic response in PHA/PBMCs without any increase in soluble HLA-G and IL-10 levels. These data seems to suggest that CD90 molecule may be considered a novel predictive marker for hMSC inhibitory ability, and might cooperate with HLA-G molecule in regulating suppressive versus stimulatory properties of hMSC. These results may have clinical implication in either transplantation or in regenerative medicine fields.

Original languageEnglish (US)
Pages (from-to)225-230
Number of pages6
JournalCytometry Part B - Clinical Cytometry
Volume76
Issue number3
DOIs
StatePublished - 2009
Externally publishedYes

Keywords

  • CD90 antigen expression
  • In vitro T-cell response
  • Mesenchymal stromal cells
  • Phenotypic markers on MSCs

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology
  • Cell Biology

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