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Potential Protein Markers for Breast Cancer Recurrence: a Retrospective Cohort Study

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Specialties Oncology
Public Health
Date 2018 Nov 30
PMID 30488343
Citations 2
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Abstract

Background: We evaluated five key proteins involved in various cancer-related pathways and assessed their relation to breast cancer recurrence.

Methods: We used the Kentucky Cancer Registry to retrospectively identify primary invasive breast cancer cases (n = 475) that were diagnosed and treated at University of Kentucky Medical Center between 2000 and 2007. Breast cancer recurrence was observed in 62 cases during the 5-year follow-up after diagnosis. Protein expression or activity level was analyzed from surgery tissue using immuno-histochemical assays.

Results: Compared to ER+/PR+/HER2- patients without recurrence, those with recurrence had higher TWIST expression (p = 0.049) but lower ABL1/ABL2 activity (p = 0.003) in primary tumors. We also found that triple-negative breast cancer patients with recurrence had higher SNAI1 expression compared to those without recurrence (p = 0.03). After adjusting for potential confounders, the higher ABL1/ABL2 activity in primary tumors was associated with a decreased risk of recurrence (OR 0.72, 95% CI 0.85-0.90) among ER+/PR+/HER2- patients. In addition, among patients with recurrence we observed that the activity level of ABL1/ABL2 was significantly increased in recurrent tumors compared to the matched primary tumors regardless of the subtype (p = 0.013).

Conclusions: These findings provide evidence that the expression/activity level of various proteins may be differentially associated with risk of recurrence of breast tumor subtypes.

Citing Articles

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Sauer S, Reed D, Ihnat M, Hurst R, Warshawsky D, Barkan D Front Oncol. 2021; 11:659963.

PMID: 33987095 PMC: 8111294. DOI: 10.3389/fonc.2021.659963.


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Tripathi R, Liu Z, Plattner R Curr Pharmacol Rep. 2019; 4(5):367-379.

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