We, the authors, Editors and Publisher of the journal Artificial Cells, Nanomedicine, and Biotechnology, have retracted the following article:
Liushun Jia, Zhen Zhu, Hongbo Li & Yaofeng Li (2019) Shikonin inhibits proliferation, migration, invasion and promotes apoptosis in NCI-N87 cells via inhibition of PI3K/AKT signal pathway. Artificial Cells, Nanomedicine, and Biotechnology, 47(1), 2662–2669, DOI: 10.1080/21691401.2019.1632870
Since publication, the authors noticed that when they repeated the reported experiments as part of their further research, some of the data could not be replicated. As this directly impacts the validity of the reported results and conclusions the authors alerted the issue to the Editor and Publisher and all have agreed to retract the article to ensure the integrity of the scholarly record.
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The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as ‘Retracted’.