title: CD271 antigen defines a subset of multipotent stromal cells with immunosuppressive and lymphohematopoietic engraftment-promoting properties.
abstract: Background In vitro proliferative and differentiation potential of mesenchymal stromal cells generated from CD271(+) bone marrow mononuclear cells (CD271-mesenchymal stromal cells) has been demonstrated in several earlier and recent reports. In the present study we focused, in addition to proliferative and differentiation potential, on in vitro and in vivo immunosuppressive and lymphohematopoietic engraftment-promoting potential of these mesenchymal stromal cells compared to bone marrow-derived mesenchymal stromal cells generated by plastic adherence (plastic adherence-mesenchymal stromal cells).
  
  
  METHODS
  We set up a series of experimental protocols in order to determine the phenotype of CD271-mesenchymal stromal cells, and their clonogenic, proliferative, differentiation and immunosuppressive potential. The potential of CD271-mesenchymal stromal cells to improve the engraftment of CD133(+) hematopoietic stem cells at co-transplantation was evaluated in immunodeficient NOD/SCID-IL2Rgamma(null) mice.
  
  
  RESULTS
  In vitro studies demonstrated that CD271-mesenchymal stromal cells differentiate along adipogenic, osteogenic and chondrogenic lineages (trilineage potential), produce significantly higher levels of cytokines than plastic adherence-mesenchymal stromal cells, and significantly inhibit the proliferation of allogeneic T-lymphocytes in mixed lymphocyte reaction assays. Elevated levels of prostaglandin E(2), but not nitric monoxide, mediated the majority of this immunosuppressive effect. In vivo studies showed that CD271-mesenchymal stromal cells promoted significantly greater lymphoid engraftment than did plastic adherence-mesenchymal stromal cells when co-transplanted with CD133(+) hematopoietic stem cells at a ratio of 8:1 in immunodeficient NOD/SCID-IL2Rgamma(null) mice. They induced a 10.4-fold increase in the number of T cells, a 2.5-fold increase in the number of NK cells, and a 3.6-fold increase in the number of B cells, indicating a major qualitative difference between these two mesenchymal stromal cell populations. Conclusions Our results indicate that CD271 antigen provides a versatile marker for prospective isolation and expansion of multipotent mesenchymal stromal cells with immunosuppressive and lymphohematopoietic engraftment-promoting properties. The co-transplantation of such cells together with hematopoietic stem cells in patients with hematologic malignancies may prove valuable in the prevention of impaired/delayed T-cell recovery and graft-versus-host disease.
authors.affiliation: Department of Hematology/Oncology, University Children's Hospital III, 60590 Frankfurt am Main, Germany. selim.kuci@kgu.de
authors.forename: Selim
authors.initials: S
authors.lastname: Kuçi
authors.forename: Zyrafete
authors.initials: Z
authors.lastname: Kuçi
authors.forename: Hermann
authors.initials: H
authors.lastname: Kreyenberg
authors.forename: Erika
authors.initials: E
authors.lastname: Deak
authors.forename: Kathrin
authors.initials: K
authors.lastname: Pütsch
authors.forename: Sabine
authors.initials: S
authors.lastname: Huenecke
authors.forename: Chandrasekhar
authors.initials: C
authors.lastname: Amara
authors.forename: Stefanie
authors.initials: S
authors.lastname: Koller
authors.forename: Eva
authors.initials: E
authors.lastname: Rettinger
authors.forename: Manuel
authors.initials: M
authors.lastname: Grez
authors.forename: Ulrike
authors.initials: U
authors.lastname: Koehl
authors.forename: Hatixhe
authors.initials: H
authors.lastname: Latifi-Pupovci
authors.forename: Reinhard
authors.initials: R
authors.lastname: Henschler
authors.forename: Torsten
authors.initials: T
authors.lastname: Tonn
authors.forename: Dorothee
authors.initials: D
authors.lastname: von Laer
authors.forename: Thomas
authors.initials: T
authors.lastname: Klingebiel
authors.forename: Peter
authors.initials: P
authors.lastname: Bader
mesh_terms: D000818:Animals; D001854:Bone Marrow Cells / Q000166:cytology / Q000502:physiology; D002454:Cell Differentiation; D019070:Cell Lineage; D049109:Cell Proliferation; D002478:Cells, Cultured; D003114:Colony-Forming Units Assay; D016207:Cytokines / Q000378:metabolism; D005347:Fibroblasts / Q000166:cytology / Q000378:metabolism; D005434:Flow Cytometry; D018380:Hematopoietic Stem Cell Transplantation; D006801:Humans; D016130:Immunophenotyping; D053631:Interleukin Receptor Common gamma Subunit / Q000502:physiology; D059630:Mesenchymal Stem Cells; D051379:Mice; D016688:Mice, Inbred NOD; D018345:Mice, Knockout; D016513:Mice, SCID; D039902:Multipotent Stem Cells / Q000166:cytology*; D009419:Nerve Tissue Proteins / Q000502:physiology*; D010641:Phenotype; D017475:Receptors, Nerve Growth Factor / Q000502:physiology*; D017154:Stromal Cells / Q000166:cytology*
chemical_list: D016207:Cytokines; C507942:Il2rg protein, mouse; D053631:Interleukin Receptor Common gamma Subunit; C484065:NGFR protein, human; D009419:Nerve Tissue Proteins; D017475:Receptors, Nerve Growth Factor