RETRACTED: Loss of microRNA-30e induced by extracellular vesicles from cancer-associated fibroblasts promotes breast cancer progression by binding to CTHRC1.

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted at the request of the authors as “some data in this study are not solid enough and need to be further explored”. The authors stated that they "found abnormalities in the re-identification of CAF-EVs, the extracted extracellular vesicles may be polluted and the elliptical structure under electron microscope is not owned by CAF-EVs. The identification of CAF-EVs by Western Blots did not refer to the definition of international society." The authors informed the journal that, after the re-experiment, they found that "there is no vesicle specific protein expression, whether the results of subsequent experiments are generated by CAF-EVs needs to be re-tested".