Study Maps Delta-Like Protein 3 and SEZ6 Across Tumor Types
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By
September 3, 2025
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3 min
Recent research focusing on Delta-like protein 3 (DLL3) and seizure-related 6 homolog (SEZ6) expression reveals significant associations in neuroendocrine neoplasms (NENs), especially high-grade tumors, such as lung neuroendocrine carcinomas and Merkel cell carcinomas. A study involving 213 tumor specimens categorized by the 2022 WHO guidelines assessed DLL3 and SEZ6 expression through immunohistochemical techniques. The findings indicate that DLL3 positivity is predominantly observed in high-grade NENs, while SEZ6 has broader expression across various types, including medullary thyroid carcinomas and duodenal NETs.
1. DLL3 and SEZ6 expressions are prominent in neuroendocrine neoplasms. 2. High-grade tumors like lung NECs show significant DLL3 positivity. 3. SEZ6 is most frequently expressed in medullary thyroid carcinomas. 4. The study analyzed 213 specimens, including NENs and non-NENs. 5. A semi-quantitative H-score was used to evaluate staining intensity.
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