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Su, Chih‐Ming; Hsu, Tung‐Wei; Chen, Hsin‐An; Wang, Wan‐Yu; Huang, Chih‐Yang; Hung, Chih‐Chiang; Yeh, Ming‐Hsin; Su, Yen‐Hao; Huang, Ming‐Te; Liao, Po‐Hsiang
Journal of cellular physiology, April 2023, 2023-04-00, 20230401, Letnik: 238, Številka: 4Journal Article
Metastasis in breast cancer usually lead to the majority of deaths on clinical patients. Accordingly, diagnosis of metastasis at the early stage in breast cancer is important to improve the prognosis. We observed that Dicer protein levels are significant decrease in highly invasive breast cancer cells and usually correlated with poor clinical outcomes. Following, we aim to clarify the molecular regulatory mechanism of this phenomenon in breast cancer to provide a new therapeutic target. In this study, we obtained that Dicer expression correlated with metastasis and invasion without affect cell stability in breast cancer cells. Importantly, we identified the regulatory mechanism of Dicer protein degradation, the chaperone‐mediated autophagy (CMA)‐mediated degradation that is major mechanism to decrease Dicer protein expression and lead to cancer metastasis. We discovered that heat shock cognate 71‐kDa protein (Hsc70) which as a CMA‐related factor interacts with the CMA‐targeting motif I333A/K334A on Dicer to promote degradation through CMA. Taken together, our findings hint that Dicer highly correlated with cancer metastasis, we reveal the tumor‐promoting effect of CMA‐mediated Dicer degradation in breast cancer.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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