Retraction notice to “An in vitro investigation of the induction of apoptosis and modulation of cell cycle events in human cancer cells by bisphenanthroline-coumarin-6,7-dioxacetatocopper(II) complex” (Chem. Biol. Interact., (2007), 168, (143–158), 10.1016/j.cbi.2007.04.003)

This article has been retracted: please see Elsevier policy on Article Correction, Retraction and Removal (Article withdrawal | Elsevier policy). This article has been retracted at the request of the authors and Editor-in-Chief. The authors contacted the journal in April 2012 to request the retraction of the above article, citing concerns that they could no longer guarantee the accuracy of certain figures within the paper. A subsequent in-house investigation found the image duplications between Figs. 6–9, 11, 12 and the images from several other articles including the following articles:•Apoptotic cell death: A possible key event in mediating the in vitro anti-proliferative effect of a novel copper (II) complex, [Cu(4-Mecdoa)(phen)2] (phen = phenanthroline, 4-Mecdoa = 4-methylcoumarin-6,7-dioxactetate), in human malignant cancer cells Apoptotic cell death: A possible key event in mediating the in vitro anti-proliferative effect of a novel copper (II) complex, [Cu(4-Mecdoa)(phen)2] (phen = phenanthroline, 4-Mecdoa = 4-methylcoumarin-6,7-dioxactetate), in human malignant cancer cells European Journal of Pharmacology, Volume 569, Issues 1–2, 13 August 2007, Pages 16-28 https://doi.org/10.1016/j.ejphar.2007.04.064.•A study of the role of apoptotic cell death and cell cycle events mediating the mechanism of action of 6-hydroxycoumarin-3-carboxylatosilver in human malignant hepatic cells A study of the role of apoptotic cell death and cell cycle events mediating the mechanism of action of 6-hydroxycoumarin-3-carboxylatosilver in human malignant hepatic cells Cancer Letters Volume 250, Issue 1, 18 May 2007, Pages 128-139 https://doi.org/10.1016/j.canlet.2006.10.015. The Editors have reviewed the case and have decided to retract the article. The Publisher wishes to apologise to the authors for the delayed retraction.