Investigators showed that transient glucose restriction in activated CD8+ effector T cells metabolically primed effector functions and enhanced tumor clearance in mice.
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Klein Geltink, R. I., Edwards-Hicks, J., Apostolova, P., O’Sullivan, D., Sanin, D. E., Patterson, A. E., Puleston, D. J., Ligthart, N. A. M., Buescher, J. M., Grzes, K. M., Kabat, A. M., Stanczak, M., Curtis, J. D., Hässler, F., Uhl, F. M., Fabri, M., Zeiser, R., Pearce, E. J., & Pearce, E. L. (2020). Metabolic conditioning of CD8 + effector T cells for adoptive cell therapy. Nature Metabolism, 1–14. https://doi.org/10.1038/s42255-020-0256-z Cite
Scientists investigated the epigenetic regulation of promoters and gene bodies and their effect on the tumor microenvironment composition of cutaneous malignant peripheral nerve sheath tumors and spindle cell melanomas.
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Investigators demonstrated the impact of donor type on overall results of allogeneic stem cell transplantation for very-high risk pediatric acute lymphoblastic leukemia with worse results when using mismatched donor stem cell source.
[Bone Marrow Transplantation]
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Targeting melanosomal proteins or oncogenic CDK4R24C by adoptive cell transfer of the same epitope-specific CD8+ T cells revealed diverse genetic and non-genetic immune escape mechanisms.
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As miR-382 was observed to be downregulated in hepatocellular carcinoma (HCC) tissues and cell lines, researchers found that overexpression of miR-382 increased the sensitivity of HCC cells to γδ T cells.
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Chen, Z., Zheng, Z., Feng, L., Huo, Z., Huang, L., Fu, M., Chen, Q., Ke, Y., Yang, J., & Hou, B. (2020). Overexpression of miR-382 sensitizes hepatocellular carcinoma cells to γδ T cells through inhibiting the expression of c-FLIP. Molecular Therapy - Oncolytics, 0(0). https://doi.org/10.1016/j.omto.2020.07.012 Cite
Scientists describe the characteristics of natural killer (NK) cells from multiple cell sources, including PSCs, the chimeric antigen receptor (CAR)-modification method and strategy for these NK cells.
[International Journal of Hematology]
Adipose tissue mesenchymal stem cells were able to delay the onset of collagen-induced arthritis, suppress the ongoing clinical and histopathological signs, decrease serum levels of TNF-α and anti-collagen type II, and downregulate the autoreactive T cells as etanercept.
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Investigators analyzed the apoptosis-inducing effect of high dose in vitro dexamethasone treatment in mouse thymic- and splenic Tregs and CD4+ T cells.
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Investigators highlight recent strategies to improve chimeric antigen therapy (CAR)-T cell therapy by engineering the CAR protein, T cells, and the interaction between T cells and other components in the tumor microenvironment.
Researchers generated and characterized traceable CAR T cells and examined potential negative effects of radionuclide reporter use. They applied the platform to two different triple-negative breast cancer models and unexpectedly observed pronounced differences in CAR-T tumor retention by PET/computed tomography and confirmed data ex vivo.
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Volpe, A., Lang, C., Lim, L., Man, F., Kurtys, E., Ashmore-Harris, C., Johnson, P., Skourti, E., Rosales, R. T. M. de, & Fruhwirth, G. O. (2020). Spatiotemporal PET Imaging Reveals Differences in CAR-T Tumor Retention in Triple-Negative Breast Cancer Models. Molecular Therapy, 0(0). https://doi.org/10.1016/j.ymthe.2020.06.028 Cite
Investigators used two-photon microscopy to elucidate the spatial organization, motility characteristics, and interactions of endogenous Treg and Th17 cells together with antigen-presenting cells within the spinal cord leptomeninges in experimental autoimmune encephalomyelitis, an animal model of multiple sclerosis.
[Proceedings of the National Academy of Sciences of the United States of America]
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Othy, S., Jairaman, A., Dynes, J. L., Dong, T. X., Tune, C., Yeromin, A. V., Zavala, A., Akunwafo, C., Chen, F., Parker, I., & Cahalan, M. D. (2020). Regulatory T cells suppress Th17 cell Ca2+ signaling in the spinal cord during murine autoimmune neuroinflammation. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2006895117 Cite