Related Experiment Videos
Molecular basis of tumor progression: mechanisms of organ-specific tumor metastasis
1Department of Surgery, H. Lee Moffitt Cancer Center and Research Institute, University of South Florida, Tampa 33612.
Abstract:
Tumor cell metastasis is an extremely complex process governed by many different classes of molecules with each class having a separate function. Metastasis is the result of multiple sequential steps and is a highly organized, nonrandom, and organ-selective process. Recent advances in tumor and molecular biology have permitted the identification of a variety of heterogeneous molecules governing invasion (degradative enzymes, motility factors), adhesion (integrins, selectins, cadherins, immunoglobulin-like superfamily, annexins), and growth (paracrine and autocrine growth factors) of tumor cells. This diverse group of biological molecules is collectively responsible for determining whether tumor cells can progress from a single malignant cell to a lethal, multiorgan, metastatic disease.
Insights
Tumor cell metastasis is a complex, multi-step process. Various molecules control invasion, adhesion, and growth, determining if cancer spreads to multiple organs.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- Tumor cell metastasis is a complex, sequential, and organ-selective process.
- Metastasis involves multiple molecular players with distinct functions.
Purpose of the Study:
- To identify and categorize the diverse molecules involved in tumor cell metastasis.
- To understand the roles of these molecules in invasion, adhesion, and growth.
Main Methods:
- Review of recent advances in tumor and molecular biology.
- Identification of heterogeneous molecules governing key metastatic processes.
Main Results:
- Identified molecules controlling tumor cell invasion, including degradative enzymes and motility factors.
- Cataloged adhesion molecules such as integrins, selectins, cadherins, and annexins.
- Highlighted growth factors (paracrine and autocrine) crucial for tumor cell proliferation.
Conclusions:
- A diverse array of biological molecules collectively dictates the metastatic potential of tumor cells.
- Understanding these molecules is key to comprehending the progression from primary tumor to lethal metastatic disease.