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Analyzing Tumor and Tissue Distribution of Target Antigen Specific Therapeutic Antibody
Published on: May 16, 2020
Monoclonal antibodies in gastrointestinal cancers
Giuseppe Bronte1, Giuseppe Cicero, Stefania Cusenza
1Università di Palermo, Section of Medical Oncology, Department of Surgical and Oncological Sciences, Via del Vespro 129, 90127 Palermo, Italy. antonio.russo@usa.net
Introduction:
Among gastrointestinal cancers, colorectal and gastric neoplasms are the most frequent. The development of new targeted drugs improved the efficacy of systemic therapy in advanced stages of those malignancies.
Areas Covered:
This review highlights the main biological processes implicated in gastrointestinal cancer development and progression, such as angiogenesis and epidermal growth factor receptor (EGFR) signaling pathway. On these bases, anti-EGFR and anti-vascular endothelial growth factor (VEGF) monoclonal antibodies in colorectal and gastric cancer are discussed. Data about further monoclonal antibodies in development are also reported.
Expert Opinion:
The use of monoclonal antibodies in colorectal and gastric cancers showed the best outcomes when combined with chemotherapy, even though single agent anti-EGFR antibodies seem active in particular setting of metastatic colorectal cancer (CRC) patients. It is not well defined whether the addition of anti-VEGF and anti-EGFR to chemotherapy could improve outcome in those patients susceptible to CRC-related metastases resection. Little and conflicting data are available about the role of these drugs in adjuvant setting. Tests are available to select patients with higher probability to get benefit from these treatments. Further biomarkers need to be evaluated to improve this selection and achieve "tailorization" of systemic therapy.
Insights
Targeted therapies like monoclonal antibodies improve outcomes for advanced gastrointestinal cancers. Anti-epidermal growth factor receptor (EGFR) and anti-vascular endothelial growth factor (VEGF) antibodies show promise, especially when combined with chemotherapy.
Area of Science:
- Gastrointestinal Oncology
- Molecular Targeted Therapy
- Cancer Biomarkers
Background:
- Colorectal and gastric neoplasms are leading gastrointestinal cancers.
- Targeted drug development has enhanced systemic therapy for advanced stages.
- Key biological pathways include angiogenesis and epidermal growth factor receptor (EGFR) signaling.
Purpose of the Study:
- To review biological processes in gastrointestinal cancer.
- To discuss anti-EGFR and anti-VEGF monoclonal antibodies in colorectal and gastric cancers.
- To report on emerging monoclonal antibodies in development.
Main Methods:
- Literature review of biological processes in gastrointestinal cancer.
- Analysis of anti-EGFR and anti-VEGF monoclonal antibody efficacy.
- Inclusion of data on novel monoclonal antibodies.
Main Results:
- Monoclonal antibodies combined with chemotherapy yield best outcomes in colorectal and gastric cancers.
- Single-agent anti-EGFR antibodies show activity in specific metastatic colorectal cancer (CRC) settings.
- Data on anti-VEGF/anti-EGFR addition to chemotherapy for resectable metastases is limited.
- Adjuvant setting data for these therapies is scarce and conflicting.
Conclusions:
- Patient selection tests are available for targeted therapies.
- Further biomarker evaluation is crucial for personalized systemic therapy.
- Tailorization of treatment based on biomarkers is essential for optimizing outcomes.
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