Tertiary lymphoid structures and their therapeutic implications in cancer

Area of Science:

• Immunology
• Oncology
• Pathology

Background:

• Tertiary lymphoid structures (TLSs) are organized immune cell aggregates found in non-lymphoid tissues during infection, inflammation, or cancer.
• These structures, comprising B cells and T cells, play a significant role in the immune response.
• Within tumors, TLSs primarily exhibit anti-tumor functions, influencing tumorigenesis.

Purpose of the Study:

• To review the formation process of tertiary lymphoid structures (TLSs).
• To explore the potential applications of TLSs in cancer therapy.
• To highlight TLSs as a promising biomarker and therapeutic target in oncology.

Main Methods:

• Literature review of existing research on TLS formation and function.
• Analysis of studies correlating TLS presence with tumor prognosis and immunotherapy response.
• Synthesis of information regarding the role of TLSs in anti-tumor immunity.

Main Results:

• TLSs are associated with inhibited tumor growth through enhanced immune cell infiltration.
• The presence of TLSs correlates with favorable prognosis in various solid tumors.
• TLSs serve as a predictive biomarker for immunotherapy effectiveness.

Conclusions:

• Tertiary lymphoid structures (TLSs) are crucial for anti-tumor immunity and hold significant therapeutic potential.
• TLSs can be leveraged as biomarkers for predicting patient outcomes and response to immunotherapy.
• Targeting TLS formation represents a promising strategy for enhancing current cancer treatments and immunotherapies.