Use this URL to cite or link to this record in EThOS:
Title: An investigation into the phenotype, function and immunomodulatory properties of in vitro expanded iNKT cells
Author: Dempsey, Claire
ISNI:       0000 0004 7653 5992
Awarding Body: University of Birmingham
Current Institution: University of Birmingham
Date of Award: 2019
Availability of Full Text:
Access from EThOS:
Access from Institution:
Invariant natural killer T (iNKT) cells are endowed with features of both innate and adaptive immunity. They are activated by the recognition of glycolipid agonists presented by CD1d which makes them excellent candidates for cellular therapies. In order to investigate the ability of iNKT cells to suppress experimental acute Graft versus host disease (GVHD), iNKT cells were first expanded in vitro, which is likely to be required prior to their use as a cellular therapeutic. Interestingly, the expanded cells showed increased frequencies of IL-10, IL-13 and IL-17 producing cells and were found to robustly suppress alloreactive T cell proliferation in vitro compared to freshly isolated cells. However, in a model of acute GVHD induced by alloantigen-reactive TCR-transgenic T cells neither freshly isolated nor expanded iNKT cells suppressed GVHD, although some survival benefit was seen following the activation of host iNKT cells. These data indicate that iNKT cells can be expanded ex vivo, that they can acquire different functional properties and that such cells robustly suppress alloreactive T cell proliferation in vitro. Therefore, further investigation into the suppressive behaviour of these cells is warranted despite a failure to suppress acute GVHD in the current study.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: QR Microbiology ; QR180 Immunology ; RC Internal medicine