How tumor-derived GABA disables tumor TLSs and drives anti-PD-1 resistance in cancer
Analysis of spatial atlas of ADC targets in immunotherapy-treated NSCLC to link compartment-specific target expression with tumor immune contexture, clinical outcome, and on-treatment remodeling.
Prof. Antoine Italiano (Gustave Roussy) delivered this oral presentation: I was honored to present our work on an integrated spatial ADC target atlas across NSCLC, bladder, gastric and endometrial cancers. Using multiplex immunofluorescence, proteomics and immune-contexture analyses, we aimed to move beyond single-marker prevalence and better understand target coverage, co-expression, spatial heterogeneity and immune geography. […]
Tumor-cell NY-ESO-1 Expression Predicts Poor Response to PD-1/PD-L1 Blockade in NSCLC
Background & rationale NY-ESO-1 is an immunogenic cancer-testis antigen and a therapeutic target for TCR-based strategies. Its value as a baseline biomarker for PD-1/PD-L1 blockade in NSCLC remains poorly defined. Because NY-ESO-1 is biologically relevant only when expressed by tumor epithelial cells, this study focused on CK7+/NY-ESO-1+ tumor cells. Study design Cohort 190 baseline FFPE […]
How regorafenib plus avelumab reshapes the immune microenvironment of “cold” soft-tissue sarcomas — and why response stays elusive
Spatial transcriptomics reveal crucial determinants of immune exclusion in non-small cell lung cancer: an analysis of the precision medicine BIP study
Background The tumor microenvironment (TME) in non-small cell lung cancer (NSCLC) plays a pivotal role in determining response to immune checkpoint inhibitors (ICI). Immune contextures within the TME are classified into three main profiles based on CD8+ T-cell (CD8) infiltration: inflamed, excluded, and desert. Inflamed tumors are characterized by CD8 infiltration into tumor nests, reflecting […]
CCR8 positive Tregs and Their Correlation with Immunotherapy Response in Advanced Non-Small Cell Lung Cancer (NSCLC)
The chemokine receptor CCR8 is selectively expressed on activated regulatory T cells (Tregs), which are recognized as potent immunosuppressive modulators within the tumor microenvironment. Several clinical trials are currently evaluating the therapeutic benefit of selectively depleting these cells to enhance the efficacy of immune checkpoint inhibitors (ICIs). However, the prognostic and predictive value of activated […]
Tertiary Lymphoid Structures as Predictors of Immune Checkpoint Inhibitor Efficacy in NSCLC & the Development of an Ex Vivo Model for Precision Medicine
Tertiary lymphoid structures (TLS) emerge as essential players in modulating anti-tumor immune responses and shaping the outcomes of immune checkpoint inhibitor (ICI) therapies. Here we explored, on the one hand, the impact of TLS maturity on clinical outcomes in non-small cell lung cancer (NSCLC), and introduce, on the other hand, a novel ex vivo tool […]
Regorafenib plus avelumab in advanced neuroendocrine tumors — and the IDO1 biomarker that predicts resistance
Why do some mature-TLS lung cancers resist immunotherapy? Two CAF subsets that drive primary resistance in NSCLC
Why do gastric cancers resist PD-1 plus antiangiogenesis? Spatial and plasma profiling points to M2 macrophages
