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Analysis of the TNF receptor on KYM cells by binding assay and affinity cross-linking
1Department of Internal Medicine, Sapporo Medical College, Japan.
Journal of Biological Response Modifiers
|June 1, 1988
Abstract:
The existence of a tumor necrosis factor (TNF) receptor on KYM human myosarcoma cells was elucidated by Scatchard plot and cross-linking analysis. The average number of specific binding sites per cell was 15,300 and the apparent dissociation constant Kd was 4.0 X 10(-10) M. The estimated relative molecular mass of a TNF receptor on KYM cell was approximately 95,000.
Insights
Researchers identified tumor necrosis factor (TNF) receptors on human myosarcoma cells. This finding provides insights into TNF receptor expression in cancer cells, with potential implications for targeted therapies.
Area of Science:
- Oncology
- Molecular Biology
- Immunology
Background:
- Tumor necrosis factor (TNF) is a key cytokine involved in inflammation and immunity.
- Understanding TNF receptor expression on cancer cells is crucial for developing targeted therapies.
Purpose of the Study:
- To confirm the presence of TNF receptors on KYM human myosarcoma cells.
- To characterize the binding properties and molecular mass of these receptors.
Main Methods:
- Scatchard plot analysis to determine binding affinity and receptor number.
- Cross-linking analysis to estimate receptor molecular mass.
Main Results:
- Specific binding sites for TNF receptors were detected on KYM cells.
- An average of 15,300 binding sites per cell with a Kd of 4.0 x 10(-10) M were found.
- The estimated relative molecular mass of the TNF receptor was approximately 95,000 Da.
Conclusions:
- KYM human myosarcoma cells express TNF receptors.
- The characterized binding parameters and molecular mass provide a basis for further investigation into TNF signaling in myosarcoma.