An immunotherapy response prediction model derived from proliferative CD4+ T cells and antigen-presenting monocytes

Kun Zheng1, Lianchong Gao2, Jie Hao3

  • 1Department of Urology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.

Frontiers in Immunology
|September 12, 2022
PubMed

Insights

New biomarkers predict immune checkpoint blockade (ICB) therapy response in clear cell renal cell carcinoma (ccRCC). A novel model identifies predictive immunocyte subtypes, aiding clinical decisions for ccRCC patients receiving ICB treatment.

Area of Science:

  • Oncology
  • Immunology
  • Genomics

Background:

  • Clear cell renal cell carcinoma (ccRCC) patients often show poor response to immune checkpoint blockade (ICB).
  • Limited biomarkers exist to predict ICB responsiveness in ccRCC, hindering clinical application.

Purpose of the Study:

  • To identify immunocyte subtypes and gene signatures that predict ICB treatment outcomes in ccRCC.
  • To develop a predictive model for ICB response in ccRCC patients.

Main Methods:

  • Reanalysis of two ccRCC single-cell RNA sequencing (scRNA-seq) datasets from patients undergoing ICB therapy.
  • Identification and validation of predictive immunocyte subtypes using independent ccRCC bulk RNA-sequencing data.
  • Development of a prediction model based on cluster-specific marker genes.

Main Results:

  • Identified a subtype of proliferative CD4+ T cells and regulatory T cells with predictive capability.
  • Discovered a subtype of antigen-presenting monocytes correlated with ICB outcomes.
  • Developed a prediction model achieving 93% AUC in the CheckMate cohort for ICB response.

Conclusions:

  • Specific immunocyte subtypes can predict ICB response in ccRCC.
  • The developed prediction model shows potential as a clinical decision-making tool for ccRCC patients receiving ICB therapy.

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