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CD8 T cell priming occurs in two phases. In the activation phase (day 1), naïve T cells engage with dendritic cells (DC) for 24 hours, then detach, proliferate, and move deeper into the lymph node. In the selection phase (days 2-3), activated T cells regain sensitivity, re-engage with antigen-presenting cells, and receive IL-2 support from CD4 T cells. Regulatory T cells limit IL-2 availability, driving the expansion and differentiation of high-affinity CD8 T cells into effector cells.

Hidden Dance of T-Cells Reveals New Immune System Strategy Against Viruses

Categories Health

Krishanu Saha, right, works in a lab at the Wisconsin Institute for Discovery. Submitted photo

New ‘Keto Diet’ for T Cells Boosts Cancer-Fighting Power

Categories Health

cancer cells illustration

Secondary cancers following CAR T cell therapy are rare

Categories Health

The pulmonary distress associated with C-IRIS, an inflammatory condition that can affect immunocompromised patients, is caused not by damage to the lungs but by T-cells infiltrating the brain, University of Illinois researchers found. Comparative biosciences professor Makoto Inoue led the team. Photo by L. Brian Stauffer

T-cells infiltrate brain, cause respiratory distress in condition affecting the immunocompromised

Categories Health

Left to right: Professor Hiroki Ishikawa, Miho Tamai, and Masato Hirota from the Immune Signal Unit looked for associations between genes and proteins from blood immune cells and gut bacteria, and an individual’s immune response.

Gut bacteria could be behind weaker immune responses to COVID-19 vaccine

Categories Health

A new MIT study explains why dendritic cells (green) in lymph nodes that drain from the lungs fail to stimulate killer T cells (white) to attack lung tumors. Credits:Courtesy of the researchers

Why lung cancer doesn’t respond well to immunotherapy

Categories Health

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