Targeting tumor microenvironment for cholangiocarcinoma: Opportunities for precision medicine

Area of Science:

• Oncology
• Cancer Biology
• Tumor Microenvironment Research

Background:

• Systemic treatments for advanced cholangiocarcinoma (CCA) show limited efficacy, with poor patient survival rates.
• The tumor microenvironment (TME) significantly influences CCA progression and presents a potential therapeutic target.
• CCA TME is characterized by a dense desmoplastic stroma and high cellular heterogeneity.

Purpose of the Study:

• To elucidate the components and interactions within the cholangiocarcinoma tumor microenvironment.
• To explore the preclinical rationale for targeting the TME in combination with existing therapies.
• To identify novel therapeutic strategies for locally advanced, unresectable, and metastatic CCA.

Main Methods:

• Review of current literature on cholangiocarcinoma TME composition.
• Analysis of cellular and molecular interactions within the CCA TME.
• Preclinical assessment of TME-targeting strategies.

Main Results:

• The CCA TME comprises diverse cells, including cancer-associated fibroblasts and immune cells, which critically impact tumor behavior.
• Specific interactions within the TME promote cancer progression and resistance to conventional therapies.
• Targeting TME components shows promise for synergistic effects when combined with chemotherapy or targeted agents.

Conclusions:

• The cholangiocarcinoma TME is a crucial determinant of treatment response and disease progression.
• Targeting the TME, particularly cancer-associated fibroblasts, represents a promising avenue for novel CCA therapies.
• Combination strategies involving TME modulation may overcome limitations of current systemic treatments for CCA.