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<journal-meta>
<journal-id journal-id-type="nlm-ta">OR</journal-id>
<journal-title-group>
<journal-title>Oncology Reports</journal-title>
</journal-title-group>
<issn pub-type="ppub">1021-335X</issn>
<issn pub-type="epub">1791-2431</issn>
<publisher>
<publisher-name>D.A. Spandidos</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.3892/or.2026.9125</article-id>
<article-id pub-id-type="publisher-id">OR-55-6-09125</article-id>
<article-categories>
<subj-group>
<subject>Expression of Concern</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>[Expression of Concern] Promoter methylation of death-associated protein kinase and its role in irradiation response in cervical cancer</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author"><name><surname>Leung</surname><given-names>Rebecca Ching-Yu</given-names></name>
</contrib>
<contrib contrib-type="author"><name><surname>Liu</surname><given-names>Stephanie Si</given-names></name>
</contrib>
<contrib contrib-type="author"><name><surname>Chan</surname><given-names>Kelvin Yuen-Kwong</given-names></name>
</contrib>
<contrib contrib-type="author"><name><surname>Tam</surname><given-names>Kar-Fai</given-names></name>
</contrib>
<contrib contrib-type="author"><name><surname>Chan</surname><given-names>Kar-Loen</given-names></name>
</contrib>
<contrib contrib-type="author"><name><surname>Wong</surname><given-names>Ling-Chui</given-names></name>
</contrib>
<contrib contrib-type="author"><name><surname>Ngan</surname><given-names>Hextan Yuen-Sheung</given-names></name>
</contrib>
</contrib-group>
<pub-date pub-type="collection"><month>06</month><year>2026</year></pub-date>
<pub-date pub-type="epub"><day>27</day><month>04</month><year>2026</year></pub-date>
<volume>55</volume>
<issue>6</issue>
<elocation-id>120</elocation-id>
<permissions>
<copyright-statement>Copyright: &#x00A9; 2026 Leung et al.</copyright-statement>
<copyright-year>2026</copyright-year>
<license license-type="open-access">
<license-p>This is an open access article distributed under the terms of the <ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution License</ext-link>, 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.</license-p></license>
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</front>
<body>
<p>Oncol Rep 19: <related-article xmlns:xlink="http://www.w3.org/1999/xlink" related-article-type="object-of-concern" vol="19" page="1339" id="RA1" xlink:href="10.3892/or.19.5.1339" ext-link-type="doi">1339&#x2013;1345</related-article>, 2008; DOI: 10.3892/or.19.5.1339</p>
<p>Following the publication of the above paper, and an Expression of concern statement (DOI: 10.3892/or.2025.9028), which notified the readers that the blots showing &#x03B2;-actin mRNA expression in Fig. 1 on p. 1341 appeared to be similar to the &#x03B2;-actin mRNA blots shown in Fig. 3 on p. 1342, albeit with some horizontal and vertical resizing, another reader has subsequently contacted the Editorial Office to explain that control western blot data featured in the same figures (Figs. 1 and 3) also appeared to be strikingly similar.</p>
<p>We have again reached out to the authors, requesting an explanation for these apparent anomalies in the presentation of the data in this paper; however, up to this time, no response from them has been forthcoming. Owing to the fact that the Editorial Office has been made aware of additional potential issues surrounding the scientific integrity of this paper, we are issuing a second Expression of Concern to notify readers of these additional issues while the Editorial Office continues to investigate this matter.</p>
</body>
</article>
