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- W2029246233 abstract "A bstract : Breast cancer is the most common malignancy affecting women. Advances in screening have resulted in an increasing trend towards detecting earlier stage tumors associated with a longer disease‐free survival. Because of this prolonged latency period, it is critical to identify patients early in their disease course who are at increased risk for recurrence, whereby treatment decisions may be altered accordingly based on more precise information. Molecular markers that demonstrate prognostic importance as well as utility for assessing subclinical disease progression offer one such approach. Specifically, circulating microsatellite alterations that reflect those genetic events occurring in tumors and that can be serially assessed through a minimally invasive procedure are a logistically practical method. In this study, serum was collected preoperatively from 56 patients with early stage breast cancer (AJCC stages I/II) and assessed for loss of heterozygosity (LOH) using 8 microsatellite markers. Twelve (21%) of 56 patients demonstrated LOH in their serum for at least one marker. Histopathologic correlation revealed an association between the presence of circulating LOH in serum and those tumors with increased proliferation indices as characterized by an increased diploid index, elevated MIB‐1 fraction, and abnormal ploidy. These findings demonstrate the presence of circulating microsatellite alterations in the serum from patients with early stage breast cancer. The association of known poor prognostic features found in tumors with increased nuclear activity not only suggests a possible etiology for their presence, but also offers a potential blood‐based surrogate marker for this disease that may demonstrate clinical utility in long‐term follow‐up studies." @default.
- W2029246233 created "2016-06-24" @default.
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- W2029246233 date "2001-09-01" @default.
- W2029246233 modified "2023-10-06" @default.
- W2029246233 title "Microsatellite Alterations Detected in the Serum of Early Stage Breast Cancer Patients" @default.
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- W2029246233 doi "https://doi.org/10.1111/j.1749-6632.2001.tb03860.x" @default.
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