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Published on: December 22, 2020
Role of the fibroblast growth factor receptor axis in cholangiocarcinoma
1Division of Medicine, Hematology, and Medical Oncology, Mount Sinai School of Medicine, New York, New York, USA.
Abstract:
Advanced cholangiocarcinoma (CCA) is a highly lethal disease with limited therapeutic options beyond cytotoxic chemotherapy. Molecular profiling of CCA has provided insights into the pathogenesis of this disease and identified potential therapeutic targets. The fibroblast growth factor receptor (FGFR) axis is important for maintaining tissue homeostasis. Aberrations in FGFR activity have been implicated in the development and progression of CCA and other malignancies, which has generated significant interest in exploring FGFR's therapeutic potential. FGFR2 fusion events are present in up to 17% of intrahepatic CCAs and appear to predict sensitivity to FGFR inhibitors even after progression on chemotherapy. These observations have led to a clinical trial evaluating FGFR inhibition in patients with CCA enriched for FGFR alterations. This review summarizes current knowledge about the role of the FGFR pathway in cholangiocarcinogenesis and ongoing work in developing FGFR-directed therapies as an antineoplastic strategy for CCA.
Insights
Advanced cholangiocarcinoma (CCA) treatment is limited. Fibroblast growth factor receptor (FGFR) alterations, particularly FGFR2 fusions, show promise for targeted therapy in CCA patients.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Advanced cholangiocarcinoma (CCA) presents limited therapeutic options, primarily relying on cytotoxic chemotherapy.
- Molecular profiling reveals the fibroblast growth factor receptor (FGFR) pathway as a key player in CCA pathogenesis and progression.
- FGFR aberrations are implicated in various malignancies, driving interest in FGFR-targeted therapies.
Purpose of the Study:
- To review the role of the FGFR pathway in cholangiocarcinogenesis.
- To summarize the development of FGFR-directed therapies for CCA treatment.
Main Methods:
- Literature review of studies on FGFR pathway in CCA.
- Analysis of clinical trial data for FGFR inhibitors in CCA.
- Summary of molecular profiling findings in CCA.
Main Results:
- FGFR2 fusions occur in up to 17% of intrahepatic CCAs.
- FGFR alterations predict sensitivity to FGFR inhibitors, even post-chemotherapy.
- Ongoing clinical trials are evaluating FGFR inhibition in CCA patients with specific alterations.
Conclusions:
- The FGFR pathway is a critical target for CCA therapy.
- FGFR inhibitors represent a promising antineoplastic strategy for CCA.
- Targeted therapy based on FGFR alterations offers new hope for CCA patients.
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