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Cardinali, Barbara; De Luca, Giuseppa; Tasso, Roberta; Coco, Simona; Garuti, Anna; Buzzatti, Giulia; Sciutto, Andrea; Arecco, Luca; Villa, Federico; Carli, Franca; Reverberi, Daniele; Quarto, Rodolfo; Dono, Mariella; Del Mastro, Lucia
International journal of molecular sciences, 06/2022, Letnik: 23, Številka: 11Journal Article
The study of circulating cancer-derived components (circulome) is considered the new frontier of liquid biopsy. Despite the recognized role of circulome biomarkers, their comparative molecular profiling is not yet routine. In advanced breast cancer (BC), approximately 40% of hormone-receptor-positive, HER2-negative BC cases harbor druggable mutations suitable for combined alpelisib/fulvestrant treatment. This pilot study investigates mutations in circulating tumor DNA (ctDNA), tumor cells (CTCs), and extracellular vesicles (EVs) with the aim of determining which information on molecular targetable profiling could be recollected in each of them. The in-depth molecular analysis of four BC patients demonstrated, as a proof-of-concept study, that it is possible to retrieve mutational information in the three components. Patient-specific mutations were found in both tissue and ctDNA and in 3/4 cases, as well as in CTCs, in the classical population (large-sized CD45-/EpCAM+/- cells), and/or in the "non-conventional" sub-population (smaller-sized CD44+/EpCAM-/CD45- cells). Consistent mutational profiles of EVs with CTCs suggest that they may have been released by CTCs. This preliminary evidence on the molecular content of the different circulating biomaterials suggests their possible function as a mirror of the intrinsic heterogeneity of BC. Moreover, this study demonstrates, through mutational assessment, the tumor origin of the different CTC sub-populations sustaining the translational value of the circulome for a more comprehensive picture of the disease.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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