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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
Anti-angiogenic therapy for colorectal cancer: on the way to getting better!
Kuifeng He1, Ketao Jin, Haohao Wang
1Zhejiang University, School of Medicine, Hangzhou, China.
Abstract:
Based on the theory that tumor growth and metastasis depend on vessels to provide oxygen and nutrients, antiangiogenic therapy was thought as a promising approach to cure cancer. Bevacizumab is the first validated angiogenesis inhibitor, when combined with conventional treatments, which can enhance antitumor effects and prolong survival for patients with colorectal cancer. However, recent years, bevacizumab and other angiogenesis inhibitors are more discussed with drug resistance and the diverse test results. Fortunately, antiangiogenic strategy is more than bevacizumab and more than anti-vascular endothelial growth factor. Dozens of compounds that potently inhibit neoplastic blood vessels formation with different mechanisms have been developed, and many of them are being tested clinically for colorectal cancer. This review will numerate the principal antiangiogenic drugs with various mechanisms, recapitulate the information of studying these drugs for colorectal cancer treatment and try to clue better usage of antiangiogenic therapy for patients with colorectal cancer in the future.
Insights
Antiangiogenic therapy, including bevacizumab, shows promise for colorectal cancer by inhibiting tumor blood vessel growth. Newer drugs offer diverse mechanisms to overcome resistance and improve patient outcomes.
Area of Science:
- Oncology
- Cancer Biology
- Pharmacology
Background:
- Antiangiogenic therapy targets tumor neovascularization, crucial for cancer growth and metastasis.
- Bevacizumab, an angiogenesis inhibitor, enhances conventional treatments for colorectal cancer but faces challenges with drug resistance.
- Diverse antiangiogenic strategies beyond anti-vascular endothelial growth factor are emerging.
Purpose of the Study:
- To review principal antiangiogenic drugs targeting colorectal cancer.
- To summarize clinical studies of these agents.
- To suggest improved future applications of antiangiogenic therapy.
Main Methods:
- Literature review of antiangiogenic drugs and their mechanisms.
- Compilation of clinical trial data for colorectal cancer treatment.
- Analysis of drug resistance and therapeutic outcomes.
Main Results:
- Bevacizumab demonstrated efficacy but also highlighted resistance issues.
- Numerous novel antiangiogenic compounds with varied mechanisms are under clinical investigation.
- Emerging therapies show potential for enhanced antitumor effects.
Conclusions:
- Antiangiogenic therapy remains a vital strategy for colorectal cancer.
- Exploring diverse mechanisms is key to overcoming treatment resistance.
- Further research will refine the clinical use of antiangiogenic agents for improved patient survival.
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