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Motility Dynamics of T Cells in Tumor-Draining Lymph Nodes: A Rational Indicator of Antitumor Response and Immune Checkpoint Blockade
Content Provider | MDPI |
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Author | Kanda, Yasuhiro Okazaki, Taku Katakai, Tomoya |
Copyright Year | 2021 |
Description | The migration status of T cells within the densely packed tissue environment of lymph nodes reflects the ongoing activation state of adaptive immune responses. Upon encountering antigen-presenting dendritic cells, actively migrating T cells that are specific to cognate antigens slow down and are eventually arrested on dendritic cells to form immunological synapses. This dynamic transition of T cell motility is a fundamental strategy for the efficient scanning of antigens, followed by obtaining the adequate activation signals. After receiving antigenic stimuli, T cells begin to proliferate, and the expression of immunoregulatory receptors (such as CTLA-4 and PD-1) is induced on their surface. Recent findings have revealed that these ‘immune checkpoint’ molecules control the activation as well as motility of T cells in various situations. Therefore, the outcome of tumor immunotherapy using checkpoint inhibitors is assumed to be closely related to the alteration of T cell motility, particularly in tumor-draining lymph nodes (TDLNs). In this review, we discuss the migration dynamics of T cells during their activation in TDLNs, and the roles of checkpoint molecules in T cell motility, to provide some insight into the effect of tumor immunotherapy via checkpoint blockade, in terms of T cell dynamics and the importance of TDLNs. |
Starting Page | 4616 |
e-ISSN | 20726694 |
DOI | 10.3390/cancers13184616 |
Journal | Cancers |
Issue Number | 18 |
Volume Number | 13 |
Language | English |
Publisher | MDPI |
Publisher Date | 2021-09-15 |
Access Restriction | Open |
Subject Keyword | Cancers Immunology T Cell Motility Tumor-draining Lymph Node Immune Checkpoint Blockade Ctla-4 Pd-1 |
Content Type | Text |
Resource Type | Article |