Investigation of immunogenicity of cryopreserved limbal stem cells
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Supported by the Technological Research Fund of the Education Ministry of Liaoning Province, China(No.20060995)

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    Abstract:

    AIM: To investigate changes in immunogenicity of cryopreserved limbal stem cells. METHODS: Cryopreserved limbal stem cells, fresh primary limbal stem cells and blank controls were inoculated subcutaneously in C57BL-6 mice and the percentage of CD25 cells in limbal explants was determined by flow cytometry at day 21 post inoculation. Morphological studies were performed by light and electron microscopy of limbal explant sections. RESULTS: The number of regional and systemic lymphocytes derived from cryopreserved limbal stem cells was lower than that from fresh primary limbal stem cells. CONCLUSION: Lymphocytes derived from cryopreserved limbal stem cells showed changes in immunogenicity, but the significance is unknown. The cryopreservation and thawing methods await further study.

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Yan Zhang, Cui-Xia Li, Li Sun. Investigation of immunogenicity of cryopreserved limbal stem cells. Int J Ophthalmol, 2011,4(6):590-593

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