Tertiary lymphoid structures in anticancer immunity

Area of Science:

• Immunology
• Oncology
• Cancer Research

Background:

• Tertiary lymphoid structures (TLS) are transient ectopic lymphoid aggregates.
• TLS are found in various cancers and correlate with better clinical outcomes and immunotherapy response.
• TLS are increasingly recognized for their role in patient survival with immune checkpoint inhibitors.

Purpose of the Study:

• To summarize current knowledge on TLS composition and function.
• To discuss the role of B and T cells within TLS in anti-tumour responses.
• To explore the prognostic and predictive value of TLS in cancer therapy.

Main Methods:

• Review of existing literature on TLS.
• Analysis of cellular composition and developmental stages of TLS.
• Discussion of B cell and T cell interactions within TLS.
• Examination of regulatory mechanisms impacting TLS function.
• Evaluation of prognostic and predictive significance of TLS.

Main Results:

• TLS composition varies with developmental stage.
• B and T cells within TLS orchestrate adaptive anti-tumour immunity.
• Mechanisms negatively regulating TLS anti-tumour activity exist.
• TLS show prognostic value and predict response to therapies like immune checkpoint blockade.

Conclusions:

• TLS are critical for anti-tumour responses and hold prognostic significance.
• Further research into TLS composition and function is needed.
• Manipulating TLS formation and function presents a promising strategy for next-generation cancer immunotherapy.