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Updated: Jul 25, 2025
Author Spotlight: Investigating Immune Cell Dynamics in the Tumor Microenvironment — Challenges and Innovations in Cancer Prognosis
Published on: April 12, 2024
Spatial immunophenotypes predict clinical outcome in intrahepatic cholangiocarcinoma
Chunbin Zhu1, Jiaqiang Ma1,2, Kai Zhu1
1Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Fudan University, Shanghai, 200032, China.
Researchers identified three distinct spatial immunophenotypes in intrahepatic cholangiocarcinoma (iCCA), revealing varied immune cell distributions and escape mechanisms. These findings pave the way for developing targeted immunotherapies for iCCA patients.
Area of Science:
- Oncology
- Immunology
- Cancer Research
Background:
- Intrahepatic cholangiocarcinoma (iCCA) is a challenging cancer with limited response to immunotherapy.
- Understanding the tumor microenvironment's immune landscape is crucial for improving treatment outcomes.
Purpose of the Study:
- To identify distinct spatial immunophenotypes in iCCA.
- To explore immune cell distribution and potential immune escape mechanisms.
- To correlate immunophenotypes with patient prognosis and molecular alterations.
Main Methods:
- Multiplex immunohistochemistry (mIHC) on 192 treatment-naïve iCCA patients.
- Quantitative evaluation of 16 immune cell subsets across intratumoral, invasive margin, and peritumoral regions.
- Unsupervised clustering to define spatial immunophenotypes and multiomics analyses.
Main Results:
- Three spatial immunophenotypes were identified: inflamed (35%), excluded (35%), and ignored (30%).
- The inflamed phenotype showed high immune infiltration and better survival; excluded and ignored phenotypes (non-inflamed) exhibited distinct pathway enrichments (Notch, MAPK, TGF-β, Wnt) and were linked to specific mutations (BAP1, FGFR2).
- Region-specific immune cell distribution, including CD15+ neutrophils, was observed.
Conclusions:
- Spatial immunophenotypes in iCCA are associated with different prognoses and immune evasion strategies.
- Tailored immunotherapies targeting specific immune escape mechanisms are needed for iCCA.
- Findings provide a basis for personalized iCCA treatment strategies.
