Study on Circulating Tumor Cells in Breast Cancer Patients
Author Information
Author(s): Kallergi Galatea, Agelaki Sofia, Kalykaki Antonia, Stournaras Christos, Mavroudis Dimitris, Georgoulias Vassilis
Primary Institution: University of Crete
Hypothesis
The study investigates the expression levels of EGFR, HER2, PI3K, and Akt in circulating tumor cells of breast cancer patients.
Conclusion
The study found that circulating tumor cells express receptors and activated signaling kinases of the EGFR/HER2/PI3K/Akt pathway, which could be targeted for effective elimination.
Supporting Evidence
- EGFR and HER2 were expressed in circulating tumor cells of 38% and 50% patients with early and 44% and 63% patients with metastatic disease, respectively.
- Phospho-PI3K and phospho-Akt expression levels were similar at 88% and 81% in circulating tumor cells of patients with early and metastatic disease.
- Phospho-EGFR was observed in circulating tumor cells of two early and six metastatic EGFR-positive patients.
Takeaway
The study looked at blood samples from breast cancer patients and found that certain proteins related to cancer were present in their tumor cells, which could help in treating the disease.
Methodology
The study used peripheral blood mononuclear cells from 32 patients with early and metastatic breast cancer to analyze the expression of specific proteins.
Limitations
The small number of patients limits the ability to draw firm conclusions.
Participant Demographics
{"early_disease":{"menopausal_status":{"premenopausal":4,"postmenopausal":12},"tumor_size":{"pT1":3,"pT2":10,"pT3":3},"lymph_node_status":{"node_negative":6,"node_positive":10}},"metastatic_disease":{"menopausal_status":{"premenopausal":5,"postmenopausal":9}}}
Statistical Information
P-Value
0.038
Statistical Significance
p=0.038
Digital Object Identifier (DOI)
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