S. Mukherjee, S. Manna, D. Pal, P. Mukherjee, C. K. Panda,Sequential loss of cell cycle checkpoint control contributes to malignant transformation of murine embryonic fibroblasts induced by 20-methylcholanthrene, Journal of Cellular Physiology 224, no. 1 (2010): 49-58, https://doi.org/10.1002/jcp.22089. The above article, published online on 23 April 2010 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between journal Editor in Chief, Alexander Hutchison; and Wiley Periodicals LLC. Concerns were raised by a third party regarding image manipulation and duplication in the above article. An investigation by the publisher has confirmed the following image-related concerns: duplication and splicing of western blots in Figure 3B(i); rotation, resizing, and duplication of cellular sections in Figure 4; duplication of cellular sections between Figure 4 and Figure 6 C; duplication of western blots in Figure 5B; duplication of western blots in Figure 6 A; and duplication of cellular sections in Figure 6 C. Because the evidence of image manipulation is extensive and impacts several figures, the journal has determined that the results are fundamentally compromised, and so the journal must retract the article. The authors disagree with the retraction.