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Published on: March 29, 2024
Immunological detection of altered signaling molecules involved in melanoma development
Yutaka Kawakami1, Hidetoshi Sumimoto, Tomonobu Fujita
1Division of Cellular Signaling, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan. yutakawa@sc.itc.keio.ac.jp
Abstract:
To understand immune responses to human cancer and develop more effective immunotherapy, human tumor antigens has been isolated using various immunological methods with tumor reactive T cells or antibodies obtained from patients with melanoma. During the process of tumor antigen isolation, various molecules with genetic alterations or over-expression in tumor cells, which may be involved in proliferation, differentiation, or survival of various cancer cells, were identified. In melanoma, abnormal molecules with mutations including beta -catenin, CDK4, and BRAF, and molecules with increased expression including Survivin, were immunologically detected. Therefore, immunological isolation of human tumor antigens contributes to the identification of important molecules including altered signaling molecules involved in melanoma formation.
Insights
Researchers identified key human tumor antigens in melanoma using immunological methods. This helps understand immune responses and develop better cancer immunotherapies by finding altered signaling molecules.
Area of Science:
- Immunology
- Oncology
- Molecular Biology
Background:
- Understanding immune responses to cancer is crucial for developing effective immunotherapies.
- Identifying human tumor antigens is a key step in this process.
Purpose of the Study:
- To isolate human tumor antigens from melanoma patients using immunological methods.
- To identify molecules involved in cancer cell proliferation, differentiation, and survival.
Main Methods:
- Utilized immunological methods to isolate tumor antigens from melanoma patients.
- Analyzed tumor-reactive T cells and antibodies to detect specific molecules.
Main Results:
- Identified various molecules with genetic alterations or overexpression in tumor cells.
- Detected mutated molecules like beta-catenin, CDK4, and BRAF in melanoma.
- Found increased expression of molecules such as Survivin.
Conclusions:
- Immunological isolation of human tumor antigens aids in identifying critical molecules in melanoma development.
- This approach contributes to understanding altered signaling pathways in cancer formation.
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