IJO International Journal of Oncology 1019-6439 1791-2423 D.A. Spandidos 10.3892/ijo.2026.5942 ijo-69-05-05942 Retraction [Retracted] In vitro modulation of MMP-2 and MMP-9 in adult human sarcoma cell lines by cytokines, inducers and inhibitors RoomiM.W. KalinovskyT. MonterreyJ. RathM. NiedzwieckiA. 11 2026 21 09 2026 69 5 129 Copyright: © 2026 Roomi et al. 2026 This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.

Int J Oncol 43: 1787-1798, 2013; DOI: 10.3892/ijo.2013.2113

Following the publication of the above paper, it was drawn to the Editor's attention by a concerned reader that the gelatinase zymography data shown in Figs. 6, 10 and 14 on p. 1792, 1794 and 1795 respectively had also been included in a paper written by the same research group which had already been published in the same journal (International Journal of Oncology). Even though these data appeared to have been included in the two papers to show the same experimental details, given the re-use of these data in the above paper, the authors were requested to submit replacement data for these figures to be included in a corrigendum. Given the 13 years that have elapsed since the publication of these papers, the only available author was unable to verify and comply with this request; therefore, the Editor has decided that this paper should be retracted from the Journal on account of the re-use of the abovementioned data. The Editor apologizes to the readership for any inconvenience caused.