ArticleCancer medicine2023
Using immunohistochemistry to classify the molecular subtypes of Paget's disease of the breast.
Article in Cancer medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 6 citations in OpenAlex.
- Significant efficacy of trastuzumab emtansine in HER2-positive relapsed mammary Paget's disease: a case report and literature review.Discover oncology · 2026Article
- Insights Into Mammary and Extramammary Paget's Disease: Diagnosis, Management, and Recent Advances.Cureus · 2025Review
- Review
- Using immunohistochemistry to classify the molecular subtypes of Paget's disease of the breast.Cancer medicine · 2023Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo classify the molecular subtypes of Paget's disease of the breast, and then compare them with general breast cancer to get deeper understanding of this disease and offer better management of associate patients in clinical decisions.
methodsWe used immunohistochemistry to examine 42 cases of this disease by antibodies against estrogen and progesterone receptors, Ki-67, as well as human epidermal growth factor receptor 2 (HER-2). Due to damage and loss of specimens, etc., we obtained 36 pathological specimens from the 42 patients. For 30 of 36 pathological specimens (83.3%), we obtained a complete molecular subtype. Cause the other 6 pathological specimens have missing immunohistochemistry items. For patients with bilateral breast cancer, only information on the side with PDB is listed. For patients with recurrence, only information on the first onset was included. We finally compared and studied the molecular subtype of 26 samples. We calculated the relative frequencies of molecular subtypes including luminal A, luminal B, HER-2-enriched, and basal-like and compared them between PDB and general breast carcinomas in other studies.
resultsThe luminal A and B subtype were found, respectively, in 3 (11.5%) and 6 (23.1%) of all patients, and 15 cases of HER-2-enriched subtype was detected (57.7%). In addition, 2 (7.7%) showed a basal-like subtype.
conclusionThe molecular subtypes of common breast cancer and PDB-associated breast cancer differ. Luminal subtypes are the most common in the former, while within our samples HER-2 positive subtype was the highest in PDB-associated breast carcinoma. With further understanding of this disease, rational therapies will be applied in different patients and cures for PDB and PDB-associated carcinoma will be achieved.
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