Related Experiment Video
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11:02
Induction of Invasive Transitional Cell Bladder Carcinoma in Immune Intact Human MUC1 Transgenic Mice: A Model for Immunotherapy Development
Published on: October 30, 2013
Germinal Center-Like Tertiary Lymphoid Structures Mark Immune Responsiveness and Enable Checkpoint Immunotherapy in
Zhihao Yin1,2,3, Xi Zhen4, Haonan Li1,2,3
1NHC Key Laboratory of Molecular Probe and Targeted Theranostics, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China.
Oncology Research
|June 26, 2026
Summary
Mature tertiary lymphoid structures (TLSs), specifically germinal center (GC)-like TLS, are key biomarkers for predicting bladder cancer patient response to Programmed Death-Ligand 1 (PD-L1) blockade therapy. Promoting TLS maturation enhances anti-tumor immunity and therapeutic efficacy.
Area of Science:
- Oncology
- Immunology
- Cancer Research
Background:
- Tertiary lymphoid structures (TLSs) modulate anti-tumor immunity, but their clinical significance in bladder cancer is unclear due to maturation heterogeneity.
- Germinal center (GC)-like TLS maturity, not just TLS presence, is linked to immune activation and response to Programmed Death-Ligand 1 (PD-L1) blockade in bladder cancer.
Purpose of the Study:
- To investigate the clinical significance, biological function, and therapeutic potential of TLS maturation in bladder cancer.
- To determine if GC-like TLS maturity offers prognostic/predictive value beyond TLS presence.
- To elucidate immune programs and tumor microenvironment remodeling associated with TLS maturation and explore therapeutic induction of TLS maturation to enhance PD-L1 blockade response.
Main Methods:
- Integrative analysis of multi-cohort transcriptomics, spatially resolved histopathology, and single-cell RNA sequencing.
- Definition and validation of TLS maturation states using GC-like TLS signatures and multiplex immunohistochemistry.
- Clinical relevance assessment in immunotherapy cohorts and a neoadjuvant PD-L1-treated muscle-invasive bladder cancer (MIBC) cohort; functional murine experiments using a lymphotoxin-β receptor (LTβR) agonist.
Main Results:
- GC-like TLS signatures correlated with prolonged survival and higher response rates to anti-PD-L1 therapy; less mature TLS showed no consistent association.
- High mature TLS density in neoadjuvant PD-L1-treated MIBC patients predicted major pathological response and improved event-free survival, outperforming PD-L1 expression.
- GC formation signifies a transition linking humoral immunity with cytotoxic activity, creating a pro-inflammatory, memory-prone tumor immune microenvironment; chemokine signaling (CCL21/CCR7, CXCL12/CXCR4) drives TLS maturation.
Conclusions:
- GC-like TLS maturity is a clinically relevant biomarker and a therapeutic target for precision immunotherapy in bladder cancer.
- Strategies promoting TLS maturation can convert immune-cold tumors into states responsive to checkpoint blockade, offering a mechanistically grounded approach.
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