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Successful adoptive transfer and in vivo expansion of haploidentical γδ T cells
Please always quote using this URN: urn:nbn:de:bvb:20-opus-117290
- Background: The primary aim of this pilot study was to determine the feasibility and safety of an adoptive transfer and in vivo expansion of human haploidentical gamma delta T lymphocytes. Methods: Patients with advanced haematological malignancies who are not eligible for allogeneic transplantation received peripheral blood mononuclear cells from half-matched family donors. For that, a single unstimulated leukapheresis product was incubated with both the anti-CD4 and anti-CD8 antibodies conjugated to paramagnetic particles. The depletionBackground: The primary aim of this pilot study was to determine the feasibility and safety of an adoptive transfer and in vivo expansion of human haploidentical gamma delta T lymphocytes. Methods: Patients with advanced haematological malignancies who are not eligible for allogeneic transplantation received peripheral blood mononuclear cells from half-matched family donors. For that, a single unstimulated leukapheresis product was incubated with both the anti-CD4 and anti-CD8 antibodies conjugated to paramagnetic particles. The depletion procedure was performed on a fully automated CliniMACS (R) device according to the manufacturer's instructions. On average, patients received 2.17 x 10(6)/kg (range 0.9-3.48) γδ T cells with <1% CD4-or CD8-positive cells remaining in the product. All patients received prior lymphopenia-inducing chemotherapy (fludarabine 20-25 mg/m(2) day -6 until day -2 and cyclophosphamide 30-60 mg/kg day -6 and -5) and were treated with 4 mg zoledronate on day 0 and 1.0x10(6) IU/m(2) IL-2 on day +1 until day +6 for the induction of gamma delta T cell proliferation in vivo. Results: This resulted in a marked in vivo expansion of donor γδ T cells and, to a lower extent, natural killer cells and double-negative αβ T cells (mean 68-fold, eight-fold, and eight-fold, respectively). Proliferation peaked by around day +8 and donor cells persisted up to 28 days. Although refractory to all prior therapies, three out of four patients achieved a complete remission, which lasted for 8 months in a patient with plasma cell leukaemia. One patient died from an infection 6 weeks after treatment. Conclusion: This pilot study shows that adoptive transfer and in vivo expansion of haploidentical γδ T lymphocytes is feasible and suggests a potential role of these cells in the treatment of haematological diseases.…
Author: | Martin Wilhelm, Manfred Smetak, Kerstin Schaefer-Eckart, Brigitte Kimmel, Josef Birkmann, Hermann Einsele, Volker Kunzmann |
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URN: | urn:nbn:de:bvb:20-opus-117290 |
Document Type: | Journal article |
Faculties: | Medizinische Fakultät / Medizinische Klinik und Poliklinik II |
Language: | English |
Parent Title (English): | Journal of Translational Medicine |
Year of Completion: | 2014 |
Volume: | 12 |
Issue: | 45 |
Source: | Journal of Translational Medicine 2014 12:45. doi:10.1186/1479-5876-12-45 |
DOI: | https://doi.org/10.1186/1479-5876-12-45 |
Pubmed Id: | https://pubmed.ncbi.nlm.nih.gov/24528541 |
Dewey Decimal Classification: | 6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit |
Tag: | CD4(+); Interleukin-2; NK cells; acute myeloid-leukemia; adoptive transfer; biophosphonate; cancer; haploidentical γδ T lymphocytes; immunotherapy; in vivo cell expansion; infusion; innate immunity; stimulation |
Release Date: | 2015/08/18 |
Licence (German): | CC BY: Creative-Commons-Lizenz: Namensnennung |