RETRACTED ARTICLE: miR-202-3p negatively regulates MMP-1 to inhibit the proliferation, migration and invasion of lung adenocarcinoma cells

We, the Editors and Publisher of the journal <i>Cell Cycle</i>, have retracted the following article: Yong Li, Huiqin Huang, Xiangli Ye, Zhenghui Huang, Xiangqi Chen, Feng Wu, and Tingyan Lin. miR-202-3p negatively regulates MMP-1 to inhibit the proliferation, migration and invasion of lung adenocarcinoma cells. Cell Cycle. 2021;20(4):406-416. doi:10.1080/15384101.2021.1876390. Since publication, concerns have been raised about the integrity of the data in the article. When approached for an explanation, the authors have been unable to address the concerns raised and have not been able to provide their original data. As verifying the validity of published work is core to the integrity of the scholarly record, we are therefore retracting the article. The corresponding author listed in this publication has been informed. The authors do not agree with the retraction. 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 The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as ‘Retracted’.