PMID- 28991374 OWN - NLM STAT- MEDLINE DCOM- 20180109 LR - 20220318 IS - 1096-9896 (Electronic) IS - 0022-3417 (Linking) VI - 244 IP - 1 DP - 2018 Jan TI - Synaptopodin-2 suppresses metastasis of triple-negative breast cancer via inhibition of YAP/TAZ activity. PG - 71-83 LID - 10.1002/path.4995 [doi] AB - Triple-negative breast cancer (TNBC) represents the most aggressive subtype of breast cancer, with a high incidence of distant metastasis; however, the underlying mechanism for this frequent recurrence remains unclear. Herein, we show that synaptopodin-2 (SYNPO2), a putative tumour suppressor in aggressive cancer, is frequently downregulated in TNBC by methylation of the promoter of SYNPO2. Low expression levels of SYNPO2 correlated significantly with 5-year metastatic relapse, and predicted poorer prognosis in breast cancer patients. Reintroduction of SYNPO2 inhibited the invasion and spontaneous metastasis of TNBC cells in vivo. Strikingly, downregulation of SYNPO2 is essential for the maintenance of stem cell-like properties in TNBC cells, leading to efficient distant colonization and metastasis outgrowth. Moreover, we demonstrate that SYNPO2 inhibits the activities of YAP and TAZ by stabilizing LATS2 protein, and transduction of YAP-S127A abrogates the repressive role of SYNPO2 in metastasis. Finally, immunohistochemical (IHC) analysis of breast cancer patient specimens indicated that the SYNPO2-LATS2-YAP axis is clinically relevant. These findings uncover a suppressive role of SYNPO2 in TNBC metastasis via inhibition of YAP/TAZ, and suggest that SYNPO2 might provide a potential prognosis marker and novel therapeutic strategy. Copyright (c) 2017 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. CI - Copyright (c) 2017 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. FAU - Liu, Junling AU - Liu J AD - Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China. FAU - Ye, Liping AU - Ye L AD - Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China. FAU - Li, Qingyuan AU - Li Q AD - Guangdong Country Garden School, Shunde, Foshan, Guangdong, PR China. FAU - Wu, Xianqiu AU - Wu X AD - Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China. FAU - Wang, Bin AU - Wang B AD - Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China. FAU - Ouyang, Ying AU - Ouyang Y AD - Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China. FAU - Yuan, Zhongyu AU - Yuan Z AD - Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China. FAU - Li, Jun AU - Li J AD - Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, PR China. FAU - Lin, Chuyong AU - Lin C AUID- ORCID: 0000-0003-4887-5386 AD - Sun Yat-sen University Cancer Centre, State Key Laboratory of Oncology in Southern China, Collaborative Innovation Centre for Cancer Medicine, Guangzhou, PR China. LA - eng PT - Journal Article PL - England TA - J Pathol JT - The Journal of pathology JID - 0204634 RN - 0 (Adaptor Proteins, Signal Transducing) RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (Microfilament Proteins) RN - 0 (Phosphoproteins) RN - 0 (SYNPO2 protein, human) RN - 0 (Trans-Activators) RN - 0 (Transcription Factors) RN - 0 (Transcriptional Coactivator with PDZ-Binding Motif Proteins) RN - 0 (Tumor Suppressor Proteins) RN - 0 (WWTR1 protein, human) RN - 0 (YAP-Signaling Proteins) RN - 0 (YAP1 protein, human) RN - EC 2.7.1.11 (LATS2 protein, human) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) SB - IM MH - Adaptor Proteins, Signal Transducing/genetics/*metabolism MH - Animals MH - DNA Methylation MH - Down-Regulation MH - Female MH - Gene Expression Profiling MH - *Gene Expression Regulation, Neoplastic MH - Heterografts MH - Humans MH - Intracellular Signaling Peptides and Proteins/genetics/*metabolism MH - Mice MH - Mice, Inbred BALB C MH - Microfilament Proteins/genetics/*metabolism MH - Neoplasm Metastasis MH - Phosphoproteins/genetics/*metabolism MH - Prognosis MH - Promoter Regions, Genetic/genetics MH - Protein Serine-Threonine Kinases/genetics/metabolism MH - Trans-Activators MH - Transcription Factors MH - Transcriptional Coactivator with PDZ-Binding Motif Proteins MH - Triple Negative Breast Neoplasms/metabolism/*pathology MH - Tumor Suppressor Proteins/genetics/metabolism MH - YAP-Signaling Proteins OTO - NOTNLM OT - LATS2 OT - SYNPO2 OT - TAZ OT - TNBC OT - YAP OT - metastasis OT - stem cell-like properties EDAT- 2017/10/11 06:00 MHDA- 2018/01/10 06:00 CRDT- 2017/10/10 06:00 PHST- 2017/03/22 00:00 [received] PHST- 2017/09/27 00:00 [revised] PHST- 2017/10/04 00:00 [accepted] PHST- 2017/10/11 06:00 [pubmed] PHST- 2018/01/10 06:00 [medline] PHST- 2017/10/10 06:00 [entrez] AID - 10.1002/path.4995 [doi] PST - ppublish SO - J Pathol. 2018 Jan;244(1):71-83. doi: 10.1002/path.4995.