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  3. Tertiary Lymphoid Structures In Brain Metastases Of Lung Cancer: Prognostic Significance And Correlation With Clinical Outcomes.
  1. Home
  3. Tertiary Lymphoid Structures In Brain Metastases Of Lung Cancer: Prognostic Significance And Correlation With Clinical Outcomes.

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Tertiary Lymphoid Structures in Brain Metastases of Lung Cancer: Prognostic Significance and Correlation With

Shota Nohira1,2, Shunichiro Kuramitsu2,3, Masasuke Ohno4

  • 1Department of Neurosurgery, Nagoya University Faculty of Medicine, Nagoya, Japan.

Anticancer Research
|July 26, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

Tertiary lymphoid structures (TLSs) are present in lung cancer brain metastases and their density correlates with better patient survival, offering new prognostic insights and potential immunotherapy targets.

Keywords:
Tertiary lymphoid structuresbrain metastaseslung cancerprognostic biomarkerstumor immune microenvironment (TIME)

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Area of Science:

  • Oncology
  • Immunology
  • Neurology

Background:

  • Lung cancer brain metastases (BMs) have a poor prognosis despite treatment advances.
  • The role of tertiary lymphoid structures (TLSs) in the BMs immune microenvironment is understudied.

Purpose of the Study:

  • To investigate the presence and prognostic significance of TLSs in lung cancer BMs.
  • To explore the relationship between TLS density, tumor-infiltrating lymphocytes (TILs), and patient survival.

Main Methods:

  • Analysis of 17 patient-derived lung cancer BMs samples.
  • Immunohistochemistry to assess TLS and TIL presence and characteristics.
  • Correlation of TLS/TIL metrics with clinical outcomes and Graded Prognostic Assessment (GPA) index.

Main Results:

  • Immature TLSs were identified in lung cancer BMs.
  • Higher TLS density, but not TIL density, significantly correlated with improved postoperative survival.
  • TLS density was independent of the GPA index, indicating unique prognostic value.

Conclusions:

  • TLSs are present in lung cancer BMs and serve as an independent prognostic marker.
  • TLS density offers valuable prognostic information beyond conventional metrics like GPA.
  • Understanding TLS in the CNS tumor microenvironment may guide novel immunotherapeutic strategies for BMs.