Abstract:
PURPOSE:Tumor surgery is aimed at complete resection of the lesion while ensuring a sufficient tumor-specific safety distance. Nevertheless, in many cases the most peripheral part - the invasion front - remains in situ. Tumor cells at the tumor margin have been reported to lose their epithelial properties and acquire features of mesenchymal cells. The process of epithelial-to-mesenchymal transition (EMT) is believed to be of prime importance for tissue and vessel invasion. Furthermore, the detection of tumor-infiltrating lymphocytes in the microenvironment of breast cancer might serve as a reliable prognostic marker. METHODS:We investigated tissue microarrays of 352 breast cancer patients with regard to the presence and distribution of the EMT factor Snail, and the presence of FoxP3, CD3 and CD8 in the immune microenvironment. RESULTS:The expression of the transcription factor Snail is strongly associated with longer disease-free and overall survival. The presence of CD3, CD8 or FoxP3 is associated with a better outcome, although statistically significant results were noted only for FoxP3. The prognostic significance of FoxP3 and Snail were also proven in multivariate analysis. CONCLUSIONS:Based on previous studies concerning the intratumoral heterogeneity of EMT, our results suggest that Snail and FoxP3 are possible prognostic markers for breast cancer. The diverse presence of lymphocytes in the tumor microenvironment (CD3 and CD8) was confirmed. Although the importance of these markers is known, their specific role in tumor invasion and metastasis as well as their hierarchical organization in these tumors remain unclear.
journal_name
Exp Mol Patholjournal_title
Experimental and molecular pathologyauthors
Alkatout I,Hübner F,Wenners A,Hedderich J,Wiedermann M,Sánchez C,Röcken C,Mathiak M,Maass N,Klapper Wdoi
10.1016/j.yexmp.2017.02.013subject
Has Abstractpub_date
2017-04-01 00:00:00pages
268-275issue
2eissn
0014-4800issn
1096-0945pii
S0014-4800(16)30234-9journal_volume
102pub_type
杂志文章abstract::The dialysate fluid of uremic patients exhibits, in vitro, an inhibitory effect on cell growth, owing to urea, guanidino compounds, and substances named middle molecules. The polyamines are compounds which exhibit high levels in biological fluids during either normal development or disease such as psoriasis, uremia, a...
journal_title:Experimental and molecular pathology
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