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        <identifier>oai:figshare.com:article/33961435</identifier>
        <datestamp>2026-09-22T04:18:19Z</datestamp>
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          <dc:title>Supplementary file 1_Reduced Nectin-4 expression in lymph node metastases of penile squamous cell carcinoma: a paired primary–metastatic analysis.docx</dc:title>
          <dc:creator>Tianhao Ma (14002834)</dc:creator>
          <dc:creator>Kun Wang (134525)</dc:creator>
          <dc:creator>Feiran Chen (1802026)</dc:creator>
          <dc:creator>Hongcheng Zhao (9322370)</dc:creator>
          <dc:creator>Chunsen Yang (25087219)</dc:creator>
          <dc:creator>Buwei Wu (25087222)</dc:creator>
          <dc:creator>Xin Yao (130614)</dc:creator>
          <dc:subject>Oncology and Carcinogenesis not elsewhere classified</dc:subject>
          <dc:subject>immunohistochemistry</dc:subject>
          <dc:subject>lymph node metastasis</dc:subject>
          <dc:subject>Nectin-4</dc:subject>
          <dc:subject>penile squamous cell carcinoma</dc:subject>
          <dc:subject>prognosis</dc:subject>
          <dc:description>Objective&lt;p&gt;To evaluate Nectin-4 expression in primary and matched metastatic penile squamous cell carcinoma (PSCC) lesions and to assess its associations with clinicopathological features and survival outcomes.&lt;/p&gt;Methods&lt;p&gt;We analyzed 123 patients with pathologically confirmed PSCC treated at our hospital between 2018 and 2024. Nectin-4 expression was assessed by immunohistochemistry using the H-score (0-300) in primary tumors and 30 matched lymph node metastases, and associations with pathological features, paired primary-metastatic differences, and survival outcomes were analyzed.&lt;/p&gt;Results&lt;p&gt;Nectin-4 was widely expressed in PSCC. Higher Nectin-4 expression was observed in less aggressive tumors. Expression was higher in T1 than in T2 stage (95% CI 19.10-79.28; P &lt; 0.01) and decreased from G1 to G3, with significant differences between G1 and G2 (95% CI 0.39-63.83; P = 0.047) and between G1 and G3 (95% CI 24.41-170.43; P = 0.009). Expression in primary tumors was not significantly associated with nodal status. In paired samples, lymph node metastases showed lower H-scores than their matched primary tumors (95% CI 3.52-72.82; P = 0.032). Low Nectin-4 expression was associated with shorter overall survival in Kaplan-Meier and univariable Cox analyses, but it was not independently associated with survival after multivariable adjustment.&lt;/p&gt;Conclusions&lt;p&gt;Nectin-4 expression in PSCC is higher in early, better-differentiated tumors and lower in lymph node metastases. Low Nectin-4 expression was associated with poorer overall survival, although it was not an independent prognostic factor. These findings suggest that Nectin-4 may have prognostic relevance and potential value as a therapeutic target in PSCC.&lt;/p&gt;</dc:description>
          <dc:date>2026-09-22T04:18:19Z</dc:date>
          <dc:type>Dataset</dc:type>
          <dc:type>Dataset</dc:type>
          <dc:identifier>10.3389/fonc.2026.1912533.s001</dc:identifier>
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          <dc:rights>CC BY 4.0</dc:rights>
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