Safi S, Yamauchi Y, Stamova S, Rathinasamy A, Op Den Winkel J, Juenger S, Bucur M, Umansky L, Warth A, Herpel E, Eichhorn M, Winter H, Hoffmann H, Beckhove P (2019)
Publication Type: Journal article
Publication year: 2019
Book Volume: 8
Article Number: e1671762
Journal Issue: 12
DOI: 10.1080/2162402X.2019.1671762
The efficacy of cancer immunotherapy may be improved by increasing the number of circulating tumor-reactive T cells. The bone marrow is a priming site and reservoir for such T cells. The characteristics of bone marrow-derived tumor-reactive T cells are poorly understood in patients with non-small-cell lung cancer (NSCLC). To compare the responsiveness of tumor antigen-reactive T cells from the bone marrow with matched peripheral blood samples in patients with resectable NSCLC, we used flow cytometry, cytokine capture assays and enzyme-linked immunospot assays to examine the responsiveness of T cells to 14 tumor antigens in matched bone marrow and peripheral blood samples from patients with resectable NSCLC or benign tumors and tumor-free patients. T cells with reactivity to tumor antigens were detected in the bone marrow of 20 of 39 (51%) NSCLC patients. The panel of tumor antigens recognized by bone marrow-derived T cells was distinct from that recognized by peripheral blood-derived T cells in NSCLC patients. Unlike for peripheral blood T cells, the presence of tumor-reactive T cells in the bone marrow did not correlate with recurrence-free survival after curative intent resection of NSCLC. T cells with reactivity to tumor antigens are common in the bone marrow of patients with NSCLC. Tumor-reactive T cells of the bone marrow have the potential to significantly broaden the total repertoire of tumor-reactive T cells in the body. To clarify the role of tumor-reactive T cells of the bone marrow in T cell-based immunotherapy approaches, clinical studies are needed (ClinicalTrials.gov: NCT02515760).
APA:
Safi, S., Yamauchi, Y., Stamova, S., Rathinasamy, A., Op Den Winkel, J., Juenger, S.,... Beckhove, P. (2019). Bone marrow expands the repertoire of functional T cells targeting tumor-associated antigens in patients with resectable non-small-cell lung cancer. OncoImmunology, 8(12). https://doi.org/10.1080/2162402X.2019.1671762
MLA:
Safi, Seyer, et al. "Bone marrow expands the repertoire of functional T cells targeting tumor-associated antigens in patients with resectable non-small-cell lung cancer." OncoImmunology 8.12 (2019).
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