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Tertiary lymphoid structures and cancer immunotherapy: From bench to bedside
Florent Peyraud1, Jean-Philippe Guegan2, Lucile Vanhersecke3
1Department of Medicine, Institut Bergonié, Bordeaux, France; Faculty of Medicine, University of Bordeaux, Bordeaux, France; Explicyte Immuno-Oncology, Bordeaux, France.
Tertiary lymphoid structures (TLSs) are key immune sites in tumors, improving cancer prognosis and immunotherapy response. Manipulating TLSs shows promise for novel cancer treatments.
Area of Science:
- Immunology
- Oncology
- Cancer Research
Background:
- Tertiary lymphoid structures (TLSs) are organized lymphoid aggregates in the tumor microenvironment.
- TLSs are crucial for adaptive antitumor immunity and are linked to better prognosis and immunotherapy response in various cancers.
Purpose of the Study:
- To review the composition, definition, and detection of human TLSs.
- To discuss the role of TLSs in antitumor immunity, prognosis, and response to immune-checkpoint blockade (ICB).
- To present preclinical data on therapeutic TLS manipulation for cancer immunotherapy.
Main Methods:
- Literature review of TLS composition, detection, and function.
- Analysis of existing data on TLS prognostic and predictive value.
- Presentation of preclinical experimental data.
Main Results:
- TLSs are consistently found in many cancer types, correlating with improved outcomes.
- TLSs are associated with enhanced responses to immune-checkpoint blockade (ICB).
- Preclinical data suggest therapeutic manipulation of TLSs is a viable strategy.
Conclusions:
- TLSs are important biomarkers and therapeutic targets in cancer immunotherapy.
- Understanding and manipulating TLSs can enhance antitumor immunity and patient responses to ICB.
- Targeting TLSs represents a promising frontier for innovative cancer treatment strategies.
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