RT Journal Article SR Electronic T1 Extracellular Vesicles as Biomarkers and Therapeutic Targets in Breast Cancer JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 6379 OP 6390 VO 35 IS 12 A1 LILITE SADOVSKA A1 JĀNIS EGLĪTIS A1 AIJA LINĒ YR 2015 UL http://ar.iiarjournals.org/content/35/12/6379.abstract AB Cancer-derived extracellular vesicles (EVs) contain various cancer-associated molecules, such as mutated or overexpressed oncoproteins, glycoproteins, mRNAs, various non-coding RNAs and DNA fragments. They have been shown to propagate phenotypic traits, such as drug resistance, increased proliferation rate, invasiveness and stemness across cancer cells and to mediate cancer-induced immunosuppression. Therefore, cancer-derived EVs have gained increasing attention as cancer biomarkers and therapeutic targets. Unlike circulating tumor cells they are highly abundant in biofluids and, on the contrary to single-molecule circulating biomarkers, they protect their molecular cargo against degradation and may carry molecular signatures associated with specific phenotypes. Herein, we summarize studies investigating EVs as biomarkers in breast cancer and propose scenarios for various clinical applications of EV-based biomarkers in the management of breast cancer. Furthermore, we provide an overview of recent findings regarding the cancer-promoting effects of breast cancer-derived EVs and discuss opportunities for blocking EV-mediated signaling as a therapeutic strategy for breast cancer.