Abstract | BACKGROUND: METHODS: Immunohistochemical staining method was used to analyze the expression of CRABP2 in human breast cancer tissues. Lentivirus vector-based shRNA technique was used to test the functional relevance of CRABP2 knockdown in breast tumors. Tail vein injection model was used to examine the lung metastasis. Co-immunoprecipitation, Western blotting, immunofluorescence, and quantitative reverse transcription polymerase chain reaction (RT-qPCR) were conducted to investigate the underlying mechanism that influenced the ER to the regulation of CRABP2 to Lats1. RESULTS: We observed that knockdown of CRABP2 promotes EMT, invasion and metastasis of ER+ breast cancer cells in vitro and in vivo, whereas overexpression of CRABP2 yields the reverse results. In ER+ mammary cancer cells, the interaction of CRABP2 and Lats1 suppress the ubiquitination of Lats1 to activate Hippo pathway to inhibit the invasion and metastasis of ER+ mammary cancer. However, in ER- mammary cancer cells, the interaction of CRABP2 and Lats1 promote the ubiquitination of Lats1 to inactivate Hippo pathway to promote the invasion and metastasis of ER- mammary cancer. CONCLUSIONS:
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Authors | Xuefei Feng, Miao Zhang, Bo Wang, Can Zhou, Yudong Mu, Juan Li, Xiaoxu Liu, Yaochun Wang, Zhangjun Song, Peijun Liu |
Journal | Journal of experimental & clinical cancer research : CR
(J Exp Clin Cancer Res)
Vol. 38
Issue 1
Pg. 361
(Aug 16 2019)
ISSN: 1756-9966 [Electronic] England |
PMID | 31419991
(Publication Type: Journal Article)
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Chemical References |
- Biomarkers, Tumor
- ESR1 protein, human
- Estrogen Receptor alpha
- Receptors, Retinoic Acid
- retinoic acid binding protein II, cellular
- LATS1 protein, human
- Protein Serine-Threonine Kinases
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Topics |
- Animals
- Apoptosis
- Biomarkers, Tumor
(genetics, metabolism)
- Breast Neoplasms
(genetics, metabolism, pathology)
- Cell Movement
- Cell Proliferation
- Estrogen Receptor alpha
(genetics, metabolism)
- Female
- Follow-Up Studies
- Gene Expression Regulation, Neoplastic
- Hippo Signaling Pathway
- Humans
- Mice
- Mice, SCID
- Neoplasm Invasiveness
- Neoplasm Metastasis
- Prognosis
- Protein Serine-Threonine Kinases
(genetics, metabolism)
- Receptors, Retinoic Acid
(genetics, metabolism)
- Signal Transduction
- Tumor Cells, Cultured
- Ubiquitination
- Xenograft Model Antitumor Assays
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