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Development and Maintenance of a Preclinical Patient Derived Tumor Xenograft Model for the Investigation of Novel Anti-Cancer Therapies
Published on: September 30, 2016
The emerging role of MET/HGF inhibitors in oncology
Giorgio V Scagliotti1, Silvia Novello, Joachim von Pawel
1Department of Oncology, University of Turin, San Luigi Hospital, Italy. giorgio.scagliotti@unito.it
Abstract:
The N-methyl-N'-nitroso-guanidine human osteosarcoma transforming gene (MET) receptor tyrosine kinase and its ligand hepatocyte growth factor (HGF) control cellular signaling cascades that direct cell growth, proliferation, survival, and motility. Aberrant MET/HGF activation has been observed in many tumor types, can occur by multiple mechanisms, and promotes cellular proliferation and metastasis via growth factor receptors and other oncogenic receptor pathways. Thus, MET/HGF inhibition has emerged as targeted anticancer therapies. Preclinically, neoplastic and metastatic phenotypes of several tumor cells, including non-small cell lung cancer, hepatocellular carcinoma, and gastric cancer, were abrogated by MET inhibition. Ongoing clinical development with tivantinib, cabozantinib, onartuzumab, crizotinib, rilotumumab, and ficlatuzumab has shown encouraging results. These trials have established a key role for MET in a variety of tumor types. Evidence is emerging for identification of aberrant MET activity biomarkers and selection of patient subpopulations that may benefit from targeted MET and HGF inhibitor treatment.
Insights
Targeting the MET receptor tyrosine kinase and its ligand HGF shows promise for cancer therapy. MET/HGF inhibition can block tumor growth and metastasis, with ongoing clinical trials showing encouraging results.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- The MET receptor tyrosine kinase and its ligand, hepatocyte growth factor (HGF), are crucial for cell growth, proliferation, survival, and motility.
- Aberrant activation of the MET/HGF pathway is implicated in various cancers, promoting tumor proliferation and metastasis.
- MET/HGF signaling contributes to oncogenesis through growth factor receptor and other oncogenic pathways.
Purpose of the Study:
- To review the role of MET/HGF signaling in cancer.
- To highlight the therapeutic potential of MET/HGF inhibition in targeted anticancer strategies.
- To discuss the clinical development and emerging biomarkers for MET/HGF targeted therapies.
Main Methods:
- Preclinical studies demonstrating the abrogation of neoplastic and metastatic phenotypes by MET inhibition.
- Review of ongoing clinical trials involving MET inhibitors such as tivantinib, cabozantinib, and others.
- Analysis of emerging evidence for biomarkers to identify patient subpopulations for targeted treatment.
Main Results:
- MET inhibition effectively abrogated neoplastic and metastatic phenotypes in preclinical models of non-small cell lung cancer, hepatocellular carcinoma, and gastric cancer.
- Clinical trials with several MET inhibitors have yielded encouraging results, establishing MET's key role in diverse tumor types.
- Evidence suggests the potential for identifying biomarkers to guide patient selection for MET and HGF inhibitor therapies.
Conclusions:
- Targeted inhibition of the MET/HGF pathway represents a promising therapeutic strategy for various cancers.
- MET inhibitors have demonstrated efficacy in preclinical models and are progressing through clinical development.
- Further research into biomarkers will be essential for optimizing patient selection and treatment outcomes for MET/HGF targeted therapies.
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