NF-κB Gene Signature in Endothelial Cells and Breast Tumors
Author Information
Author(s): Martine Perrot-Applanat, Sophie Vacher, Aurore Toullec, Irma Pelaez, Guillaume Velasco, Françoise Cormier, Hanan El Sheikh Saad, Rosette Lidereau, Véronique Baud, Ivan Bièche
Primary Institution: INSERM U965, Paris, France
Hypothesis
The study investigates the NF-κB gene signature in TNF-α stimulated endothelial cells and its correlation with breast tumors.
Conclusion
The study suggests that the NF-κB gene signature can be used to analyze the role of TNF-α in endothelial dysfunction and breast tumors.
Supporting Evidence
- Twenty genes were significantly up-regulated in response to TNF-α in endothelial cells.
- 85% of the identified endothelial TNF-induced genes showed a positive correlation with TNF in breast tumors.
- The study identified novel TNF-α-inducible genes in endothelial cells.
- NF-κB activation was shown to be crucial for the expression of these genes.
- Both TNFR1 and TNFR2 were involved in the regulation of NF-κB associated genes.
Takeaway
Researchers looked at how a protein called TNF-α affects tiny blood vessel cells and found that it changes many genes, which might help us understand breast cancer better.
Methodology
The study used quantitative RT-PCR to measure mRNA expression of 55 NF-κB related genes in endothelial cells and breast tumors.
Potential Biases
Potential bias may arise from the selection of specific genes and the focus on TNF-α without considering other cytokines.
Limitations
The study primarily focuses on a specific set of genes and may not encompass all relevant factors in endothelial dysfunction and breast cancer.
Participant Demographics
The study analyzed 96 breast tumors from women, with 48 being ERα positive and 48 ERα negative.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website