Migration of Cytotoxic T Lymphocytes in 3D Collagen Matrices

To mimic an ECM, scientists used a matrix formed by different collagen concentrations and analyzed migration trajectories of primary human cytotoxic T lymphocytes. Different migration patterns were observed and could be grouped into three motility types: slow, fast, and mixed.
[Biophysical Journal]
Sadjadi, Z., Zhao, R., Hoth, M., Qu, B., & Rieger, H. (2020). Migration of Cytotoxic T Lymphocytes in 3D Collagen Matrices. Biophysical Journal, 119(11), 2141–2152. https://doi.org/10.1016/j.bpj.2020.10.020 Cite
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CCL7 Recruits cDC1 to Promote Antitumor Immunity and Facilitate Checkpoint Immunotherapy to Non-Small Cell Lung Cancer

Researchers demonstrated that CCL7 facilitated anti-PD-1 therapy for the KrasLSL−G12D/+Tp53fl/fl and the KrasLSL−G12D/+Lkb1fl/fl NSCLC mouse models by recruiting conventional DC 1 into the TME to promote T cell expansion.
[Nature Communications]
Zhang, M., Yang, W., Wang, P., Deng, Y., Dong, Y.-T., Liu, F.-F., Huang, R., Zhang, P., Duan, Y.-Q., Liu, X.-D., Lin, D., Chu, Q., & Zhong, B. (2020). CCL7 recruits cDC1 to promote antitumor immunity and facilitate checkpoint immunotherapy to non-small cell lung cancer. Nature Communications, 11(1), 6119. https://doi.org/10.1038/s41467-020-19973-6 Cite
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Intestinal Regulatory T Cell Induction by β-Elemene Alleviates the Formation of Fat Tissue-Related Inflammation

Oral administration of β-elemene, contained in various foodstuffs, downregulated expressions of inflammatory cytokines and increased Foxp3+CD4+ T cells in adipose tissue of obese mice.
[iScience]
Zhou, Y., Takano, T., Wang, Y., Li, X., Wang, R., Wakatsuki, Y., Nakajima-Adachi, H., Tanokura, M., Miyakawa, T., & Hachimura, S. (2020). Intestinal Regulatory T Cell Induction by β-Elemene Alleviates the Formation of Fat Tissue-Related Inflammation. IScience, 0(0). https://doi.org/10.1016/j.isci.2020.101883 Cite
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Functionally Impaired Plasmacytoid Dendritic Cells and Non-Haematopoietic Sources of Type I Interferon Characterize Human Autoimmunity

The authors showed that in preclinical autoimmunity and established systemic lupus erythematosus, plasmacytoid dendritic cells were not effector cells, had lost capacity for Toll-like-receptor-mediated cytokine production and did not induce T cell activation.
[Nature Communications]
Psarras, A., Alase, A., Antanaviciute, A., Carr, I. M., Md Yusof, M. Y., Wittmann, M., Emery, P., Tsokos, G. C., & Vital, E. M. (2020). Functionally impaired plasmacytoid dendritic cells and non-haematopoietic sources of type I interferon characterize human autoimmunity. Nature Communications, 11(1), 6149. https://doi.org/10.1038/s41467-020-19918-z Cite
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Food Insecurity and T-Cell Dysregulation in Women Living with HIV on Antiretroviral Therapy

Food insecurity was associated with increased activation of CD4+ and CD8+ T-cells, increased senescence of CD8+ T-cells, and decreased co-stimulation of CD4+ and CD8+ T-cells
[Clinical Infectious Diseases]
Peters, B. A., Sheira, L. A., Hanna, D. B., Qi, Q., Sharma, A., Adedimeji, A., Wilson, T., Merenstein, D., Tien, P. C., Cohen, M., Wentz, E. L., Kinslow, J., Landay, A. L., & Weiser, S. D. (n.d.). Food insecurity and T-cell dysregulation in women living with HIV on antiretroviral therapy. Clinical Infectious Diseases. https://doi.org/10.1093/cid/ciaa1771 Cite
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Brain Cancer Induces Systemic Immunosuppression through Release of Non-Steroid Soluble Mediators

Researchers recapitulated the immunosuppression observed in glioblastoma patients in the C57BL/6 mouse and investigated the aetiology of low CD4 T-cell counts.
[Brain]
Ayasoufi, K., Pfaller, C. K., Evgin, L., Khadka, R. H., Tritz, Z. P., Goddery, E. N., Fain, C. E., Yokanovich, L. T., Himes, B. T., Jin, F., Zheng, J., Schuelke, M. R., Hansen, M. J., Tung, W., Parney, I. F., Pease, L. R., Vile, R. G., & Johnson, A. J. (n.d.). Brain cancer induces systemic immunosuppression through release of non-steroid soluble mediators. Brain. https://doi.org/10.1093/brain/awaa343 Cite
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Prognostic Significance of CD4-Positive Regulatory T Cells in Tumor Draining Lymph Nodes from Patients with Bladder Cancer

To clarify the role of CD4+ regulatory T cells in bladder cancer, scientists investigated the frequency of these cells in tumor draining lymph nodes of 50 patients with bladder cancer who underwent radical cystectomy using flow cytometry method.
[Heliyon]
Ariafar, A., Vahidi, Y., Fakhimi, M., Asadollahpour, A., Erfani, N., & Faghih, Z. (2020). Prognostic significance of CD4-positive regulatory T cells in tumor draining lymph nodes from patients with bladder cancer. Heliyon, 6(12). https://doi.org/10.1016/j.heliyon.2020.e05556 Cite
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Dr. Stanley Riddell awarded Burke O’Reilly Family Endowed Chair in Immunotherapy

Riddell’s lab is working to make CAR T-cell therapies even better and expand the repertoire of cancers it can treat. Based out of the Hutch’s new Steam Plant facility, he and his colleagues are zeroing in on multiple myeloma as the next likely new target for the approach.
[Fred Hutchinson Cancer Research Center]
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Ribosome-Targeting Antibiotics Impair T Cell Effector Function and Ameliorate Autoimmunity by Blocking Mitochondrial Protein Synthesis

Scientists showed that Linezolid, a ribosomal-targeting antibiotic (RAbo), effectively blocked the course of a T cell-mediated autoimmune disease.
[Immunity]
Almeida, L., Dhillon-LaBrooy, A., Castro, C. N., Adossa, N., Carriche, G. M., Guderian, M., Lippens, S., Dennerlein, S., Hesse, C., Lambrecht, B. N., Berod, L., Schauser, L., Blazar, B. R., Kalesse, M., Müller, R., Moita, L. F., & Sparwasser, T. (2020). Ribosome-Targeting Antibiotics Impair T Cell Effector Function and Ameliorate Autoimmunity by Blocking Mitochondrial Protein Synthesis. Immunity, 0(0). https://doi.org/10.1016/j.immuni.2020.11.001 Cite
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Liver Immune Profiling Reveals Pathogenesis and Therapeutics for Biliary Atresia

Scientists discovered that hepatic B cell lymphopoiesis did not cease after birth and that tolerance defects contributed to immunoglobulin G-autoantibody accumulation in biliary atresia.
[Cell]
Wang, J., Xu, Y., Chen, Z., Liang, J., Lin, Z., Liang, H., Xu, Y., Wu, Q., Guo, X., Nie, J., Lu, B., Huang, B., Xian, H., Wang, X., Wu, Q., Zeng, J., Chai, C., Zhang, M., Lin, Y., … Zhang, Y. (2020). Liver Immune Profiling Reveals Pathogenesis and Therapeutics for Biliary Atresia. Cell, 0(0). https://doi.org/10.1016/j.cell.2020.10.048 Cite
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Novel Human Immunomodulatory T Cell Receptors and Their Double-Edged Potential in Autoimmunity, Cardiovascular Disease and Cancer

Scientists discuss the roles of immunomodulatory receptors in the control of immunity from a perspective focused on therapeutic potential in not only cancer but also autoimmune diseases.
[Cellular & Molecular Immunology]
Martín, P., Blanco-Domínguez, R., & Sánchez-Díaz, R. (2020). Novel human immunomodulatory T cell receptors and their double-edged potential in autoimmunity, cardiovascular disease and cancer. Cellular & Molecular Immunology, 1–17. https://doi.org/10.1038/s41423-020-00586-4 Cite
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