کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10903829 | 1086530 | 2015 | 44 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The β-catenin signaling pathway induces aggressive potential in breast cancer by up-regulating the chemokine CCL5
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
تحقیقات سرطان
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چکیده انگلیسی
β-Catenin signaling plays a pivotal role in the genesis of a variety of malignant tumors, but its role in breast cancer has not been fully elucidated. Here, we examined whether deregulation of β-catenin signaling is related to the aggressive characteristics of certain types of breast cancers. Analysis of cytokine levels in MDA-MB-231 cells overexpressing a constitutively active form of β-catenin (CAβ-catenin) revealed a higher level of CCL5 expression. Cells transfected with CAβ-catenin or stimulated with recombinant CCL5 exhibited increased cell invasion activity and spheroid formation in vitro. Furthermore, CAβ-catenin-transfected MDA-MB-231 cells formed larger tumor masses that contained more Ki-67-positive cells and infiltrating lymphocytes than did the control cells. An inhibitor of CCR5 and a pan-CXCR neutralizing antibody dramatically reduced CAβ-catenin-promoted activities. In addition to CCL5, 6-BIO, a chemical activator of β-catenin, induced cell invasion and spheroid formation in MDA-MB-231 cells. Furthermore, high levels of nuclear β-catenin accumulation were detected in breast cancer in patients with metastasis but not in those without metastasis. Nuclear β-catenin localization is related to increased CCL5 production in breast cancer. These findings suggest that β-catenin expression enhances tumor progression via chemokine production in breast cancers and that β-catenin signaling is a critical regulator of the aggressive traits of breast cancers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Cell Research - Volume 338, Issue 1, 15 October 2015, Pages 22-31
Journal: Experimental Cell Research - Volume 338, Issue 1, 15 October 2015, Pages 22-31
نویسندگان
Rika Yasuhara, Tarou Irié, Kenya Suzuki, Terumasa Sawada, Noriko Miwa, Akiko Sasaki, Yuko Tsunoda, Seigo Nakamura, Kenji Mishima,