We, the Editor and Publisher of the Journal of Receptors and Signal Transduction, have retracted the following article: Ultrasound microbubble-mediated miR-150-5p inhibits gastric cancer cell growth by targeting the expression of NR2F2; Wei Wei, Xiaoguang Wei, Minyu Zhang & Cheng Peng; https://doi/10.1080/10799893.2021.1884260Since publication, concerns have been raised about the integrity of the following figures in the article. 2(A) miR-NC and 2(D) miR-NC-MBs;2(A) Control and 5(C) NR2F2-MBs + miR-NC-MBsWhen approached for an explanation, the authors were unable to provide original data in a suitable format that would confirm the authenticity of the data. The authors have been notified of the retraction but have not responded.We have been informed in our decision-making by our policy on publishing ethics and integrity and the COPE guidelines on retractions.The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as 'Retracted'.