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Published on: January 26, 2024
Tumor-draining lymph nodes: opportunities, challenges, and future directions in colorectal cancer immunotherapy
Yao Wang1, Tingting Zhu1, Qi Shi1
1Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
Abstract:
Tumor-draining lymph nodes (TDLNs) are potential immunotherapy targets that could expand the population of patients with colorectal cancer (CRC) who may benefit from immunotherapy. Currently, pathological detection of tumor cell infiltration limits the acquisition of immune information related to the resected lymph nodes. Understanding the immune function and metastatic risk of specific stages of lymph nodes can facilitate better discussions on the removal or preservation of lymph nodes, as well as the timing of immunotherapy. This review summarized the contribution of TDLNs to CRC responses to immune checkpoint blockade therapy, local immunotherapy, adoptive cell therapy, and cancer vaccines, and discussed the significance of these findings for the development of diagnostics based on TDLNs and the potential implications for guiding immunotherapy after a definitive diagnosis. Molecular pathology and immune spectrum diagnosis of TDLNs will promote significant advances in the selection of immunotherapy options and predicting treatment efficacy.
Insights
Tumor-draining lymph nodes (TDLNs) are crucial for colorectal cancer (CRC) immunotherapy. Analyzing TDLN immune function can guide treatment selection and predict patient response to immunotherapy.
Area of Science:
- Oncology
- Immunology
- Pathology
Background:
- Tumor-draining lymph nodes (TDLNs) are key in colorectal cancer (CRC) immunity and immunotherapy response.
- Current pathological detection methods for tumor cell infiltration in lymph nodes limit immune profiling.
- Understanding lymph node immune function is vital for optimizing immunotherapy strategies and surgical decisions in CRC.
Purpose of the Study:
- To review the role of TDLNs in CRC response to various immunotherapies.
- To discuss the implications of TDLN analysis for diagnostic tool development.
- To explore how TDLN insights can guide immunotherapy timing and patient selection.
Main Methods:
- Literature review of studies on TDLNs and CRC immunotherapy.
- Analysis of TDLN contributions to immune checkpoint blockade, local immunotherapy, adoptive cell therapy, and cancer vaccines.
- Discussion of diagnostic and prognostic potential of TDLN molecular pathology and immune profiling.
Main Results:
- TDLNs significantly influence patient responses to diverse immunotherapies in CRC.
- Molecular and immune profiling of TDLNs offers potential for novel diagnostic and prognostic markers.
- Insights from TDLNs can inform clinical decisions regarding lymph node management and immunotherapy administration.
Conclusions:
- TDLNs are critical determinants of immunotherapy efficacy in colorectal cancer.
- Advanced diagnostics based on TDLN molecular pathology and immune spectrum analysis are essential for personalized immunotherapy.
- Harnessing TDLN information can significantly improve patient selection and treatment outcomes in CRC immunotherapy.
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