[Retracted] MicroRNA‑503 inhibits the proliferation and invasion of breast cancer cells via targeting insulin‑like growth factor 1 receptor.

Following the publication of this paper, it was drawn to the Editors' attention by a concerned reader that the Transwell cell migration assay data shown in Fig. 4B and E were strikingly similar to data appearing in different form in other articles by different authors. Owing to the fact that the contentious data in the above article had already been published elsewhere, or were already under consideration for publication, prior to its submission to , the Editor has decided that this paper should be retracted from the Journal.

MicroRNA-503 inhibits the proliferation and invasion of breast cancer cells via targeting insulin-like growth factor 1 receptor.

MicroRNAs (miRs), a class of non-coding RNAs that are 18‑25 nucleotides in length, serve as key regulators in the development and progression of human cancers. Previously, miR‑503 has been implicated in breast cancer. However, the underlying mechanism of miR‑503 in regulating the proliferation and invasion of breast cancer cells remains largely unknown.