Abstract：
:To develop cell therapies for damaged nervous tissue with human neural stem/progenitor cells (hNPCs), the risk of an immune response and graft rejection must be considered. There are conflicting results and lack of knowledge concerning the immunocompetence of hNPCs of different origin. Here, we studied the immunogenicity and immunomodulatory potentials of hNPCs cultured under equivalent conditions after derivation from human embryonic stem cells (hESC-NPCs) or human fetal spinal cord tissue (hfNPCs). The expression patterns of human leukocyte antigen, co-stimulatory and adhesion molecules in hESC-NPCs and hfNPCs were relatively similar and mostly not affected by inflammatory cytokines. Unstimulated hfNPCs secreted more transforming growth factor-β1 (TGF-β1) and β2 but similar level of interleukin (IL)-10 compared to hESC-NPCs. In contrast to hfNPCs, hESC-NPCs displayed 4-6 fold increases in TGF-β1, TGF-β2 and IL-10 under inflammatory conditions. Both hNPCs reduced the alloreaction between allogeneic peripheral blood mononuclear cells (PBMCs) and up-regulated CD4(+)CD25(+)forkhead box P3 (FOXP3)(+) T cells. However, hESC-NPCs but not hfNPCs dose-dependently triggered PBMC proliferation, which at least partly may be due to TGF-β signaling. To conclude, hESC-NPCs and hfNPCs displayed similarities but also significant differences in their immunocompetence and interaction with allogeneic PBMCs, differences may be crucial for the outcome of cell therapy.
journal_name
Stem Cell Resjournal_title
Stem cell researchauthors
Liu J,Götherström C,Forsberg M,Samuelsson EB,Wu J,Calzarossa C,Hovatta O,Sundström E,Åkesson Edoi
10.1016/j.scr.2013.01.001subject
Has Abstractpub_date
2013-05-01 00:00:00pages
325-37issue
3eissn
1873-5061issn
1876-7753pii
S1873-5061(13)00002-0journal_volume
10pub_type
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