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Current and future strategies to block tumor angiogenesis, invasion, and metastasis
P J Effert1, G Gastl, T Strohmeyer
1Department of Urology, RWTH Aachen, Germany.
Abstract:
Progression of malignancy involves a series of sequential steps that ultimately lead to cancer-cell dissemination. In addition to the loss of growth control, an imbalanced regulation of motility and proteolysis is a prerequisite for invasion and metastasis. These factors are also necessary for angiogenesis-an integral process occurring at both the primary and the metastatic sites. Investigators have elucidated in detail many of the molecular mechanisms involved in the sequential steps of the metastatic cascade and have thereby provided new targets for therapeutic intervention. For each step, different model systems have been developed and various strategies for antimetastatic therapy have been tested in vitro as well as in murine systems. Difficulties in translating results obtained in preclinical models into the clinical setting have become apparent and have not been unexpected in light of the sometimes highly artificial interaction in the experimental setting. Nevertheless, continued development of model systems and further research into the genetic control of malignancy should lead to the identification of common signal-transduction pathways. Interference at such sites promises to be particularly effective in inhibiting proliferation and metastasis.
Insights
Cancer progression involves multiple steps, including loss of growth control, motility, and proteolysis, which are crucial for metastasis and angiogenesis. Targeting common signal-transduction pathways offers a promising strategy for inhibiting cancer proliferation and spread.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Malignancy progression involves sequential steps leading to cancer cell dissemination.
- Loss of growth control, imbalanced motility, and proteolysis are essential for invasion and metastasis.
- Angiogenesis is a critical process at both primary and metastatic tumor sites.
Purpose of the Study:
- To elucidate molecular mechanisms underlying the metastatic cascade.
- To identify novel therapeutic targets for antimetastatic interventions.
- To explore the development of effective model systems for cancer research.
Main Methods:
- Detailed investigation of molecular mechanisms in cancer progression.
- Development and utilization of various in vitro and murine model systems.
- Testing of antimetastatic therapy strategies in preclinical settings.
Main Results:
- Elucidation of molecular mechanisms involved in the metastatic cascade.
- Identification of potential therapeutic targets for antimetastatic intervention.
- Preclinical testing of antimetastatic strategies in vitro and in vivo.
Conclusions:
- Translating preclinical findings to clinical settings presents challenges.
- Continued development of model systems is crucial for advancing cancer research.
- Targeting common signal-transduction pathways holds promise for inhibiting cancer proliferation and metastasis.