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RID: Evaluation of the Possible Inhibiting Effect of the Proinflammatory Signaling Induced by TNF-α through NF-κβ and
F A Monsalve1, A Rojas2, I Gonzalez2
1Department of Basic Biomedical Sciences, Faculty of Health Sciences, University of Talca, Chile.
Abstract:
Receptor internalization and degradation (RID), is a transmembrane protein coded within the E3 region expression cassette of adenoviruses. RID downregulates the cell surface expression of epidermal growth factor receptor (EGFR), tumor necrosis factor receptor (TNFR), and apoptosis antigen 1 (FAS), causing a reduction of the effects of their respective ligands. In addition, RID inhibits apoptosis by decreasing the secretion of TNF-related apoptosis-inducing ligand (TRAIL) by normal tissue cells. In this article, we report that RID inhibited chemokine expression in human breast cancer cell line MDA-MB-231 but showed no effect in cell line MCF7. These dissimilar results may be due to the different molecular and functional properties of both cell lines. Therefore, it is necessary to replicate this study in other breast cancer cell models.
Insights
Receptor internalization and degradation (RID) protein affects chemokine expression differently in breast cancer cells. This study found RID inhibited chemokines in MDA-MB-231 cells but not MCF7 cells, suggesting varied cellular responses.
Area of Science:
- Oncology
- Molecular Biology
- Virology
Background:
- Receptor internalization and degradation (RID) is an adenovirus E3-encoded transmembrane protein.
- RID modulates cell surface receptor expression, including EGFR, TNFR, and FAS, impacting ligand signaling.
- RID also influences apoptosis by reducing TRAIL secretion from normal cells.
Purpose of the Study:
- To investigate the effect of RID on chemokine expression in human breast cancer cell lines.
- To compare RID's impact on chemokine expression between different breast cancer cell models.
Main Methods:
- Utilized human breast cancer cell lines MDA-MB-231 and MCF7.
- Assessed the expression of chemokines in response to RID.
Main Results:
- RID significantly inhibited chemokine expression in the MDA-MB-231 cell line.
- No significant effect of RID on chemokine expression was observed in the MCF7 cell line.
- Differential responses suggest cell-specific molecular and functional properties influence RID activity.
Conclusions:
- RID exhibits differential effects on chemokine expression in distinct breast cancer cell lines.
- Further studies using diverse breast cancer models are required to fully elucidate RID's role.
- Understanding these variations is crucial for exploring RID's therapeutic potential in cancer.
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