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<front>
<journal-meta>
<journal-id journal-id-type="nlm-ta">Molecular Medicine Reports</journal-id>
<journal-title-group>
<journal-title>Molecular Medicine Reports</journal-title>
</journal-title-group>
<issn pub-type="ppub">1791-2997</issn>
<issn pub-type="epub">1791-3004</issn>
<publisher>
<publisher-name>D.A. Spandidos</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.3892/mmr.2026.14059</article-id>
<article-id pub-id-type="publisher-id">MMR-35-1-14059</article-id>
<article-categories>
<subj-group>
<subject>Expression of Concern</subject>
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</article-categories>
<title-group>
<article-title>[Expression of Concern] D-galactose induces astrocytic aging and contributes to astrocytoma progression and chemoresistance via cellular senescence</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author"><name><surname>Hou</surname><given-names>Jingang</given-names></name></contrib>
<contrib contrib-type="author"><name><surname>Yun</surname><given-names>Yeejin</given-names></name></contrib>
<contrib contrib-type="author"><name><surname>Xue</surname><given-names>Jianjie</given-names></name></contrib>
<contrib contrib-type="author"><name><surname>Sun</surname><given-names>Mengqi</given-names></name></contrib>
<contrib contrib-type="author"><name><surname>Kim</surname><given-names>Sunchang</given-names></name></contrib>
</contrib-group>
<pub-date pub-type="collection">
<month>01</month><year>2027</year></pub-date>
<pub-date pub-type="epub">
<day>03</day><month>11</month><year>2026</year></pub-date>
<volume>35</volume>
<issue>1</issue>
<elocation-id>1</elocation-id>
<permissions>
<copyright-statement>Copyright: &#x00A9; 2026 Hou 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>
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<body>
<p>Mol Med Rep 20: <related-article xmlns:xlink="http://www.w3.org/1999/xlink" id="RA1" related-article-type="object-of-concern" vol="20" page="4111" ext-link-type="doi" xlink:href="10.3892/mmr.2019.10677">4111-4118</related-article>, 2019; DOI: 10.3892/mmr.2019.10677</p>
<p>Following the publication of the above paper, it was drawn to the Editor&#x0027;s attention by a concerned reader that the p16 antibody that the authors reported to have used for the western blot experiment shown in Fig. 1C (cat. no. ab51243) is specific for the protein known as P16 ARC (or ARPC5), not the apoptosis-associated protein p16INK4a, as was intended.</p>
<p>The authors were contacted by the Editorial Office to offer an explanation for the apparent selection of an unsuitable antibody in this paper, and although they have replied, they have been unable to present the proof of purchase of the antibody in question given the lengthy time period that has elapsed since this study was published. Therefore, owing to the fact that the Editorial Office has been made aware of potential issues surrounding the scientific integrity of this paper, we are issuing an Expression of Concern to notify readers of this potential problem.</p>
</body>
</article>
