TCR Signals Controlling Adaptive Immunity against Toxoplasma and Cancer
Masaaki Okamoto1,2, Masahiro Yamamoto3,4,5
1Department of Immunoparasitology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.
Abstract:
T cells play a crucial role in adaptive immunity by recognizing and eliminating foreign pathogens and abnormal cells such as cancer cells. T cell receptor (TCR), which is expressed on the surface of T cells, recognizes and binds to specific antigens presented by major histocompatibility complex (MHC) molecules on antigen-presenting cells (APCs). This activation process leads to the proliferation and differentiation of T cells, allowing them to carry out their specific immune response functions. This chapter outlines the TCR signaling pathways that are common to different T cell subsets, as well as the recently elucidated TCR signaling pathway specific to CD8+ T cells and its role in controlling anti-Toxoplasma and anti-tumor immunity.
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