The prognostic effect of DDX3 upregulation in distant breast cancer metastases
| العنوان: | The prognostic effect of DDX3 upregulation in distant breast cancer metastases |
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| المؤلفون: | Heerma van Voss, Marise R., Schrijver, Willemijne A M E, Ter Hoeve, Natalie D., Hoefnagel, Laurien D., Manson, Quirine F., van der Wall, Elsken, Raman, Venu, van Diest, Paul J., Dutch Distant Breast Cancer Metastases Consortium, Distant Breast Cancer Metastases Consortium |
| المساهمون: | Targeted Gynaecologic Oncology (TARGON) |
| المصدر: | Clinical & Experimental Metastasis, 34(1), 85–92. Springer Netherlands Clinical & Experimental Metastasis, 34(1), 85-92. SPRINGER Clinical & Experimental Metastasis |
| بيانات النشر: | Springer Nature |
| مصطلحات موضوعية: | 0301 basic medicine, CA15-3, Oncology, Cancer Research, PROTEIN, Triple Negative Breast Neoplasms, DEAD box RNA helicases, Metastasis, DEAD-box RNA Helicases, 0302 clinical medicine, Breast cancer, Surgical oncology, Neoplasm Metastasis, Non-U.S. Gov't, Brain Neoplasms, Research Support, Non-U.S. Gov't, INHIBITOR, General Medicine, Prognosis, Metastatic breast cancer, Gene Expression Regulation, Neoplastic, 030220 oncology & carcinogenesis, DDX3X, Female, Research Paper, medicine.medical_specialty, BRAIN METASTASES, REQUIREMENT, Research Support, Disease-Free Survival, 03 medical and health sciences, Internal medicine, MOTILITY, DDX3, medicine, Journal Article, Humans, THERAPEUTIC TARGET, IDENTIFICATION, business.industry, MUTATIONS, Brain metastasis, Cancer, RNA HELICASE DDX3, medicine.disease, 030104 developmental biology, CELLS, business |
| الوصف: | Metastatic breast cancer remains one of the leading causes of death in women and identification of novel treatment targets is therefore warranted. Functional studies showed that the RNA helicase DDX3 promotes metastasis, but DDX3 expression was never studied in patient samples of metastatic cancer. In order to validate previous functional studies and to evaluate DDX3 as a potential therapeutic target, we investigated DDX3 expression in paired samples of primary and metastatic breast cancer. Samples from 79 breast cancer patients with distant metastases at various anatomical sites were immunohistochemically stained for DDX3. Both cytoplasmic and nuclear DDX3 expression were compared between primary and metastatic tumors. In addition, the correlation between DDX3 expression and overall survival was assessed. Upregulation of cytoplasmic (28%; OR 3.7; p = 0.002) was common in breast cancer metastases, especially in triple negative (TN) and high grade cases. High cytoplasmic DDX3 levels were most frequent in brain lesions (65%) and significantly correlated with high mitotic activity and triple negative subtype. In addition, worse overall survival was observed for patients with high DDX3 expression in the metastasis (HR 1.79, p = 0.039). Overall, we conclude that DDX3 expression is upregulated in distant breast cancer metastases, especially in the brain and in TN cases. In addition, high metastatic DDX3 expression correlates with worse survival, implying that DDX3 is a potential therapeutic target in metastatic breast cancer, in particular in the clinically important group of TN patients. Electronic supplementary material The online version of this article (doi:10.1007/s10585-016-9832-8) contains supplementary material, which is available to authorized users. |
| وصف الملف: | image/pdf; application/pdf |
| اللغة: | English |
| تدمد: | 0262-0898 |
| DOI: | 10.1007/s10585-016-9832-8 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::226fe1a2129c071a0618870083853ddeTest |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....226fe1a2129c071a0618870083853dde |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 02620898 |
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| DOI: | 10.1007/s10585-016-9832-8 |