Odeberg J, Piao JH, Samuelsson EB, Falci S, Akesson E. Low immunogenicity of in vitro-expanded human neural cells despite high MHC expression.
J Neuroimmunol 2005;
161:1-11. [PMID:
15748938 DOI:
10.1016/j.jneuroim.2004.11.016]
[Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2004] [Revised: 09/09/2004] [Accepted: 11/24/2004] [Indexed: 10/25/2022]
Abstract
The ability to expand human neural precursor cells in vitro offers new possibilities for future cell therapies. However, concern over immunologically based rejection of in vitro-expanded human neural cells confounds their use as donor cells. Here, we demonstrate that the expression of human leukocyte antigen (HLA) class I and II molecules, but not the co-stimulatory proteins CD40, CD80 and CD86, substantially increase during expansion of neurospheres. Furthermore, peripheral lymphocytes were unresponsive when co-cultured with in vitro-expanded neural cells. Taken together, these results suggest a low immunogenicity of these cultured human neural cells despite HLA incompatibility and high HLA expression.
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