Erschienen in:
16.07.2019 | Translational Research (RL Aft, Section Editor)
How Did We Get There? The Progression from Ductal Carcinoma In Situ to Invasive Ductal Carcinoma
verfasst von:
Kimberly Dessources, Ana Paula Martins Sebastiao, Fresia Pareja, Britta Weigelt, Jorge S. Reis-Filho
Erschienen in:
Current Breast Cancer Reports
|
Ausgabe 3/2019
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Abstract
Purpose of Review
Ductal carcinoma in situ (DCIS) is a non-obligate precursor of invasive breast cancer. Despite numerous studies investigating the progression from in situ to invasive disease, there is still controversy as to the mechanisms by which a DCIS comes to become an invasive cancer. Here, we reviewed the state-of-the-art of the pathologic and molecular characterization of DCIS.
Recent Findings
DCIS displays intra-lesion genetic heterogeneity. Single-cell sequencing studies have demonstrated that progression from DCIS to invasive breast cancer is a complex phenomenon, which can vary from lesion to lesion. While in some DCIS, multiple clones have the ability to invade, in others, clonal selection likely takes place.
Summary
The fact that DCIS displays intra-lesion genetic heterogeneity and that progression varies from patient to patient poses formidable challenges for the development of biomarkers to define the risk of progression to invasive breast cancer.