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Updated: Nov 29, 2025

Three-Dimensional 3D Tumor Spheroid Invasion Assay
Published on: May 1, 2015
Metastatic behavior analyses of tetraspanin TM4SF5-expressing spheres in three-dimensional (3D) cell culture
Dae-Geun Song1, Eunmi Kim2, Jung Weon Lee3
1Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangwon-do 25451, Gangneung-si, South Korea.
Abstract:
Cancer metastasis involves diverse cellular functions via bidirectional communications between intracellular and extracellular spaces. To achieve development of the anti-metastatic drugs, one needs to consider the efficacy and mode of action (MOA) of the drug candidates to block the metastatic potentials of cancerous cells. Rather than under two-dimensional environment, investigation of the metastatic potentials under three-dimensional environment would be much pharmaceutically beneficent, since it can mimic the in vivo tumor lesions in cancer patients, leading to allowance of drug candidates analyzed in the 3D culture systems to lower failure rates during the anti-metastatic drug development. Here we have reviewed on the analyses of metastatic potentials of certain cancer models in 3D culture systems surrounded with extracellular matrix proteins, which could be supported by TM4SF5- and/or EMT-mediated actions. We particularly focused the initial events of the cancer metastasis, such as invasive outgrowth and dissemination from the cancer cell masses, spheroids, embedded in the 3D gel culture systems. This review summarizes the significance of tetraspanin TM4SF5 and Snail1 that are related to EMT in the metastatic potentials explored in the 3D gel systems.
Insights
Investigating cancer metastasis in 3D cultures, mimicking in vivo conditions, is crucial for developing effective anti-metastatic drugs. This approach enhances drug candidate analysis, reducing failure rates in cancer treatment development.
Area of Science:
- Oncology
- Cell Biology
- Drug Development
Background:
- Cancer metastasis involves complex cellular interactions and requires effective anti-metastatic drugs.
- Evaluating drug candidates in 3D culture systems better mimics in vivo tumor environments than 2D models.
- Three-dimensional (3D) models offer a more pharmaceutically relevant platform for assessing anti-metastatic drug efficacy.
Purpose of the Study:
- To review the analysis of cancer metastatic potentials in 3D culture systems.
- To highlight the role of tetraspanin TM4SF5 and epithelial-mesenchymal transition (EMT) in metastasis.
- To focus on the initial stages of metastasis, including invasive outgrowth and dissemination within 3D matrices.
Main Methods:
- Review of studies analyzing cancer cell metastasis in 3D gel culture systems.
- Focus on extracellular matrix protein interactions.
- Examination of TM4SF5 and EMT-related factors, such as Snail1, in 3D models.
Main Results:
- 3D culture systems provide a more accurate model for studying cancer metastasis compared to 2D environments.
- Tetraspanin TM4SF5 and EMT-mediated pathways are significant factors in cancer cell metastatic potential.
- Initial metastatic events like invasive outgrowth and dissemination are effectively studied in 3D gel systems.
Conclusions:
- Utilizing 3D culture systems is essential for robust anti-metastatic drug development.
- Understanding the roles of TM4SF5 and EMT in 3D environments is key to blocking cancer cell metastasis.
- This review underscores the importance of 3D models for analyzing early metastatic events and improving drug discovery success rates.

