Journal of immunotherapy
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Journal of immunotherapy · Feb 2008
Clinical grade generation of hexon-specific T cells for adoptive T-cell transfer as a treatment of adenovirus infection after allogeneic stem cell transplantation.
Adenovirus infection after allogeneic hematopoietic stem cell transplantation is still causing significant morbidity and mortality, especially in children. It has been demonstrated that a sufficient host T-cell response is essential to clear the virus. Adoptive transfer of specific T-cell immunity from the donor to the recipient has become a new treatment option for patients with systemic adenoviral infection who lack specific T-cell responses. ⋯ The availability for isolation of hexon-specific T cells among 76 hematopoietic stem cell transplantation donors showed in > 72% a sufficient T-cell response (0.05% of T cells). In conclusion, Good Manufacturing Practice-grade selection of adenovirus-specific T cells for adoptive immunotherapy by hexon-induced secretion of interferon-gamma has been established. Adoptive T-cell transfer could potentially restore T-cell immunity against adenovirus after allogeneic stem cell transplantation.