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Metaplastic breast cancer: Treatment and prognosis by molecular subtype
BACKGROUND: Metaplastic breast cancer (MBC) is a rare and aggressive subtype of breast. However, the effect of molecular subtype on treatment and prognosis of MBC remains unclear. PATIENTS AND METHODS: The Surveillance, Epidemiology, and End Results database was used to analyze patients with MBC bet...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Neoplasia Press
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8079171/ https://www.ncbi.nlm.nih.gov/pubmed/33677236 http://dx.doi.org/10.1016/j.tranon.2021.101054 |
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author | Hu, Jin Zhang, Huiqiong Dong, Fang Zhang, Ximeng Wang, Shuntao Ming, Jie Huang, Tao |
author_facet | Hu, Jin Zhang, Huiqiong Dong, Fang Zhang, Ximeng Wang, Shuntao Ming, Jie Huang, Tao |
author_sort | Hu, Jin |
collection | PubMed |
description | BACKGROUND: Metaplastic breast cancer (MBC) is a rare and aggressive subtype of breast. However, the effect of molecular subtype on treatment and prognosis of MBC remains unclear. PATIENTS AND METHODS: The Surveillance, Epidemiology, and End Results database was used to analyze patients with MBC between 2010 and 2016. Molecular subtype was stratified to TN group (ER and PR-/HER2-), HER2 group (ER and PR-/HER2+, ER/PR+ and HER2+), and HR group (ER/PR+ and HER2-). The breast cancer-specific survival (BCSS) differences were estimated using multivariate Cox regression model and Kaplan-Meier curves. RESULTS: We included 1665 patients with median follow-up time of 27 months (range 0–83 months). 1154 (69.3%), 65 (3.9%), and 446 (26.8%) patients presented in TN group, HER2 group, and HR group, respectively. On multivariate Cox analysis, the prognosis was related to age, tumor size, regional node metastasis, and surgery. Molecular subtype remained no impact on BCSS. Radiotherapy (RT) was associated with better prognosis. Patients cannot benefit from chemotherapy. In Kaplan-Meier curve, triple-negative (P = 0.047) and HR-positive (P = 0.006) patients receiving RT had a superior BCSS than that not RT. HER2-positive patients cannot benefit from RT. However, adjusted Kaplan-Meier survival model showed that triple-negative (P = 0.019) but not HER2-positive (P = 0.575) or HR-positive (P = 0.574) patients receiving RT had a superior BCSS than that not RT. CONCLUSIONS: Molecular subtype is not associated with the better prognosis of MBC. Patients could benefit from RT. However, triple-negative but not HR-positive or HER2-positive patients have superior survival after receiving RT. |
format | Online Article Text |
id | pubmed-8079171 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Neoplasia Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-80791712021-04-30 Metaplastic breast cancer: Treatment and prognosis by molecular subtype Hu, Jin Zhang, Huiqiong Dong, Fang Zhang, Ximeng Wang, Shuntao Ming, Jie Huang, Tao Transl Oncol Original Research BACKGROUND: Metaplastic breast cancer (MBC) is a rare and aggressive subtype of breast. However, the effect of molecular subtype on treatment and prognosis of MBC remains unclear. PATIENTS AND METHODS: The Surveillance, Epidemiology, and End Results database was used to analyze patients with MBC between 2010 and 2016. Molecular subtype was stratified to TN group (ER and PR-/HER2-), HER2 group (ER and PR-/HER2+, ER/PR+ and HER2+), and HR group (ER/PR+ and HER2-). The breast cancer-specific survival (BCSS) differences were estimated using multivariate Cox regression model and Kaplan-Meier curves. RESULTS: We included 1665 patients with median follow-up time of 27 months (range 0–83 months). 1154 (69.3%), 65 (3.9%), and 446 (26.8%) patients presented in TN group, HER2 group, and HR group, respectively. On multivariate Cox analysis, the prognosis was related to age, tumor size, regional node metastasis, and surgery. Molecular subtype remained no impact on BCSS. Radiotherapy (RT) was associated with better prognosis. Patients cannot benefit from chemotherapy. In Kaplan-Meier curve, triple-negative (P = 0.047) and HR-positive (P = 0.006) patients receiving RT had a superior BCSS than that not RT. HER2-positive patients cannot benefit from RT. However, adjusted Kaplan-Meier survival model showed that triple-negative (P = 0.019) but not HER2-positive (P = 0.575) or HR-positive (P = 0.574) patients receiving RT had a superior BCSS than that not RT. CONCLUSIONS: Molecular subtype is not associated with the better prognosis of MBC. Patients could benefit from RT. However, triple-negative but not HR-positive or HER2-positive patients have superior survival after receiving RT. Neoplasia Press 2021-03-04 /pmc/articles/PMC8079171/ /pubmed/33677236 http://dx.doi.org/10.1016/j.tranon.2021.101054 Text en © 2021 Published by Elsevier Inc. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Original Research Hu, Jin Zhang, Huiqiong Dong, Fang Zhang, Ximeng Wang, Shuntao Ming, Jie Huang, Tao Metaplastic breast cancer: Treatment and prognosis by molecular subtype |
title | Metaplastic breast cancer: Treatment and prognosis by molecular subtype |
title_full | Metaplastic breast cancer: Treatment and prognosis by molecular subtype |
title_fullStr | Metaplastic breast cancer: Treatment and prognosis by molecular subtype |
title_full_unstemmed | Metaplastic breast cancer: Treatment and prognosis by molecular subtype |
title_short | Metaplastic breast cancer: Treatment and prognosis by molecular subtype |
title_sort | metaplastic breast cancer: treatment and prognosis by molecular subtype |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8079171/ https://www.ncbi.nlm.nih.gov/pubmed/33677236 http://dx.doi.org/10.1016/j.tranon.2021.101054 |
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