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Greco MR, Bon E, Rubino R, Guerra L, Bernabe-Garcia M, Cannone S, Cayuela ML, Ciaccia L, Marionneau-Lambot S, Oullier T, Fromont G, Guibon R, Roger S, Reshkin SJ, Cardone RA. Phosphorylation of NHERF1 S279 and S301 differentially regulates breast cancer cell phenotype and metastatic organotropism. Biochim Biophys Acta Mol Basis Dis 2019; 1865:26-37. [PMID: 30326259 DOI: 10.1016/j.bbadis.2018.10.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 09/21/2018] [Accepted: 10/11/2018] [Indexed: 02/08/2023]
Abstract
Metastatic cancer cells are highly plastic for the expression of different tumor phenotype hallmarks and organotropism. This plasticity is highly regulated but the dynamics of the signaling processes orchestrating the shift from one cell phenotype and metastatic organ pattern to another are still largely unknown. The scaffolding protein NHERF1 has been shown to regulate the expression of different neoplastic phenotypes through its PDZ domains, which forms the mechanistic basis for metastatic organotropism. This reprogramming activity was postulated to be dependent on its differential phosphorylation patterns. Here, we show that NHERF1 phosphorylation on S279/S301 dictates several tumor phenotypes such as in vivo invasion, NHE1-mediated matrix digestion, growth and vasculogenic mimicry. Remarkably, injecting mice with cells having differential NHERF1 expression and phosphorylation drove a shift from the predominantly lung colonization (WT NHERF1) to predominately bone colonization (double S279A/S301A mutant), indicating that NHERF1 phosphorylation also acts as a signaling switch in metastatic organotropism.
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Na K, Shin H, Cho JY, Jung SH, Lim J, Lim JS, Kim EA, Kim HS, Kang AR, Kim JH, Shin JM, Jeong SK, Kim CY, Park JY, Chung HM, Omenn GS, Hancock WS, Paik YK. Systematic Proteogenomic Approach To Exploring a Novel Function for NHERF1 in Human Reproductive Disorder: Lessons for Exploring Missing Proteins. J Proteome Res 2017; 16:4455-4467. [PMID: 28960081 DOI: 10.1021/acs.jproteome.7b00146] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
One of the major goals of the Chromosome-Centric Human Proteome Project (C-HPP) is to fill the knowledge gaps between human genomic information and the corresponding proteomic information. These gaps are due to "missing" proteins (MPs)-predicted proteins with insufficient evidence from mass spectrometry (MS), biochemical, structural, or antibody analyses-that currently account for 2579 of the 19587 predicted human proteins (neXtProt, 2017-01). We address some of the lessons learned from the inconsistent annotations of missing proteins in databases (DB) and demonstrate a systematic proteogenomic approach designed to explore a potential new function of a known protein. To illustrate a cautious and strategic approach for characterization of novel function in vitro and in vivo, we present the case of Na(+)/H(+) exchange regulatory cofactor 1 (NHERF1/SLC9A3R1, located at chromosome 17q25.1; hereafter NHERF1), which was mistakenly labeled as an MP in one DB (Global Proteome Machine Database; GPMDB, 2011-09 release) but was well known in another public DB and in the literature. As a first step, NHERF1 was determined by MS and immunoblotting for its molecular identity. We next investigated the potential new function of NHERF1 by carrying out the quantitative MS profiling of placental trophoblasts (PXD004723) and functional study of cytotrophoblast JEG-3 cells. We found that NHERF1 was associated with trophoblast differentiation and motility. To validate this newly found cellular function of NHERF1, we used the Caenorhabditis elegans mutant of nrfl-1 (a nematode ortholog of NHERF1), which exhibits a protruding vulva (Pvl) and egg-laying-defective phenotype, and performed genetic complementation work. The nrfl-1 mutant was almost fully rescued by the transfection of the recombinant transgenic construct that contained human NHERF1. These results suggest that NHERF1 could have a previously unknown function in pregnancy and in the development of human embryos. Our study outlines a stepwise experimental platform to explore new functions of ambiguously denoted candidate proteins and scrutinizes the mandated DB search for the selection of MPs to study in the future.
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Affiliation(s)
- Keun Na
- Yonsei Proteome Research Center, Yonsei University , Seoul 03722, South Korea
| | - Heon Shin
- Department of Integrated OMICS for Biomedical Science, Yonsei University , Seoul 03722, South Korea
| | - Jin-Young Cho
- Yonsei Proteome Research Center, Yonsei University , Seoul 03722, South Korea
| | - Sang Hee Jung
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University , Seongnam 13496, South Korea
| | - Jaeseung Lim
- CHA Biotech Co., Ltd. , Seongnam 13488, South Korea
| | - Jong-Sun Lim
- Yonsei Proteome Research Center, Yonsei University , Seoul 03722, South Korea
| | - Eun Ah Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University , Seongnam 13496, South Korea
| | - Hye Sun Kim
- CHA Biotech Co., Ltd. , Seongnam 13488, South Korea
| | - Ah Reum Kang
- CHA Biotech Co., Ltd. , Seongnam 13488, South Korea
| | - Ji Hye Kim
- CHA Biotech Co., Ltd. , Seongnam 13488, South Korea
| | - Jeong Min Shin
- Department of Biochemistry, CHA University , Seongnam 13488, South Korea
| | - Seul-Ki Jeong
- Yonsei Proteome Research Center, Yonsei University , Seoul 03722, South Korea
| | - Chae-Yeon Kim
- Department of Integrated OMICS for Biomedical Science, Yonsei University , Seoul 03722, South Korea
| | - Jun Young Park
- Department of Integrated OMICS for Biomedical Science, Yonsei University , Seoul 03722, South Korea
| | - Hyung-Min Chung
- Department of Medicine, School of Medicine, Konkuk University , Seoul 143701, South Korea
| | - Gilbert S Omenn
- Center for Computational Medicine and Bioinformatics, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - William S Hancock
- Department of Chemical Biology, Northeastern University , Boston, Massachusetts 02115, United States
| | - Young-Ki Paik
- Yonsei Proteome Research Center, Yonsei University , Seoul 03722, South Korea.,Department of Integrated OMICS for Biomedical Science, Yonsei University , Seoul 03722, South Korea.,Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University , Seoul 03722, South Korea
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