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Kovács Z, Bajusz C, Szabó A, Borkúti P, Vedelek B, Benke R, Lipinszki Z, Kristó I, Vilmos P. A bipartite NLS motif mediates the nuclear import of Drosophila moesin. Front Cell Dev Biol 2024; 12:1206067. [PMID: 38450250 PMCID: PMC10915024 DOI: 10.3389/fcell.2024.1206067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 02/08/2024] [Indexed: 03/08/2024] Open
Abstract
The ERM protein family, which consists of three closely related proteins in vertebrates, ezrin, radixin, and moesin (ERM), is an ancient and important group of cytoplasmic actin-binding and organizing proteins. With their FERM domain, ERMs bind various transmembrane proteins and anchor them to the actin cortex through their C-terminal F-actin binding domain, thus they are major regulators of actin dynamics in the cell. ERMs participate in many fundamental cellular processes, such as phagocytosis, microvilli formation, T-cell activation and tumor metastasis. We have previously shown that, besides its cytoplasmic activities, the single ERM protein of Drosophila melanogaster, moesin, is also present in the cell nucleus, where it participates in gene expression and mRNA export. Here we study the mechanism by which moesin enters the nucleus. We show that the nuclear import of moesin is an NLS-mediated, active process. The nuclear localization sequence of the moesin protein is an evolutionarily highly conserved, conventional bipartite motif located on the surface of the FERM domain. Our experiments also reveal that the nuclear import of moesin does not require PIP2 binding or protein activation, and occurs in monomeric form. We propose, that the balance between the phosphorylated and non-phosphorylated protein pools determines the degree of nuclear import of moesin.
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Affiliation(s)
- Zoltán Kovács
- HUN-REN Biological Research Centre, Szeged, Hungary
- Doctoral School of Multidisciplinary Medical Science, University of Szeged, Szeged, Hungary
| | - Csaba Bajusz
- HUN-REN Biological Research Centre, Szeged, Hungary
| | - Anikó Szabó
- HUN-REN Biological Research Centre, Szeged, Hungary
| | | | | | - Réka Benke
- HUN-REN Biological Research Centre, Szeged, Hungary
| | - Zoltán Lipinszki
- HUN-REN Biological Research Centre, Institute of Biochemistry, MTA SZBK Lendület Laboratory of Cell Cycle Regulation, Szeged, Hungary
| | | | - Péter Vilmos
- HUN-REN Biological Research Centre, Szeged, Hungary
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2
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Sang SY, Wang YJ, Liang T, Liu Y, Liu JJ, Li H, Liu X, Kang QZ, Wang T. Protein 4.1R regulates M1 macrophages polarization via glycolysis, alleviating sepsis-induced liver injury in mice. Int Immunopharmacol 2024; 128:111546. [PMID: 38237224 DOI: 10.1016/j.intimp.2024.111546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 02/08/2024]
Abstract
Acute liver injury (ALI) is a common clinical disease caused by sepsis, metabolic syndrome, hepatitis virus. Macrophage plays an important role in the development of ALI, which is characterized by polarization and inflammatory regulation. The polarization process of macrophages is related to membrane binding proteins and adaptors. Protein 4.1R acts as an adaptor, linking membrane proteins to the cytoskeleton, and is involved in cell activation and cytokine secretion. However, whether protein 4.1R is involved in regulating macrophage polarization and inflammation-induced liver injury remains unknown. In this study, protein 4.1R is identified with the special effect on macrophage M1 polarization. And it is further demonstrated that protein 4.1R deficiency significantly enhance glycolytic metabolism. Mechanistically, the regulation of protein 4.1R on pyruvate kinase M2 (PKM2) plays a key role in glycolysis metabolism. In addition, we found that protein 4.1R directly interacts with toll-like receptor 4 (TLR4), inhibits the activation of the AKT/HIF-1α signaling pathway. In conclusion, protein 4.1R targets HIF-1α mediated glycolysis regulates M1 macrophage polarization, indicating that protein 4.1R is a candidate for regulating macrophage mediated inflammatory response. In conclusion, we have revealed a novel function of protein 4.1R in macrophage polarization and ALI, providing important insights into the metabolic reprogramming, which is important for ALI therapy. We have revealed a novel function of protein 4.1R in macrophage polarization and ALI, providing important insights into the metabolic reprogramming, which is important for ALI therapy.
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Affiliation(s)
- Si-Yao Sang
- MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Yuan-Jiao Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Taotao Liang
- Department of Hematology, Affiliated Tumor Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, China
| | - Yan Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Jiao-Jiao Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Hui Li
- MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Xin Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Qiao-Zhen Kang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450000, China.
| | - Ting Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450000, China.
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3
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Du Y, Bradshaw WJ, Leisner TM, Annor-Gyamfi JK, Qian K, Bashore FM, Sikdar A, Nwogbo FO, Ivanov AA, Frye SV, Gileadi O, Brennan PE, Levey AI, Axtman AD, Pearce KH, Fu H, Katis VL. Discovery of FERM domain protein-protein interaction inhibitors for MSN and CD44 as a potential therapeutic approach for Alzheimer's disease. J Biol Chem 2023; 299:105382. [PMID: 37866628 PMCID: PMC10692723 DOI: 10.1016/j.jbc.2023.105382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/11/2023] [Accepted: 09/27/2023] [Indexed: 10/24/2023] Open
Abstract
Proteomic studies have identified moesin (MSN), a protein containing a four-point-one, ezrin, radixin, moesin (FERM) domain, and the receptor CD44 as hub proteins found within a coexpression module strongly linked to Alzheimer's disease (AD) traits and microglia. These proteins are more abundant in Alzheimer's patient brains, and their levels are positively correlated with cognitive decline, amyloid plaque deposition, and neurofibrillary tangle burden. The MSN FERM domain interacts with the phospholipid phosphatidylinositol 4,5-bisphosphate (PIP2) and the cytoplasmic tail of CD44. Inhibiting the MSN-CD44 interaction may help limit AD-associated neuronal damage. Here, we investigated the feasibility of developing inhibitors that target this protein-protein interaction. We have employed structural, mutational, and phage-display studies to examine how CD44 binds to the FERM domain of MSN. Interestingly, we have identified an allosteric site located close to the PIP2 binding pocket that influences CD44 binding. These findings suggest a mechanism in which PIP2 binding to the FERM domain stimulates CD44 binding through an allosteric effect, leading to the formation of a neighboring pocket capable of accommodating a receptor tail. Furthermore, high-throughput screening of a chemical library identified two compounds that disrupt the MSN-CD44 interaction. One compound series was further optimized for biochemical activity, specificity, and solubility. Our results suggest that the FERM domain holds potential as a drug development target. Small molecule preliminary leads generated from this study could serve as a foundation for additional medicinal chemistry efforts with the goal of controlling microglial activity in AD by modifying the MSN-CD44 interaction.
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Affiliation(s)
- Yuhong Du
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, Georgia, USA; Emory Chemical Biology Discovery Center, Emory University School of Medicine, Atlanta, Georgia, USA
| | - William J Bradshaw
- Alzheimer's Research UK Oxford Drug Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine Research Building, University of Oxford, Oxford, UK
| | - Tina M Leisner
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, Center for Integrative Chemical Biology and Drug Discovery, Chapel Hill, North Carolina, USA
| | - Joel K Annor-Gyamfi
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, Structural Genomics Consortium, Chapel Hill, North Carolina, USA
| | - Kun Qian
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, Georgia, USA; Emory Chemical Biology Discovery Center, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Frances M Bashore
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, Structural Genomics Consortium, Chapel Hill, North Carolina, USA
| | - Arunima Sikdar
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, Center for Integrative Chemical Biology and Drug Discovery, Chapel Hill, North Carolina, USA
| | - Felix O Nwogbo
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, Center for Integrative Chemical Biology and Drug Discovery, Chapel Hill, North Carolina, USA
| | - Andrey A Ivanov
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, Georgia, USA; Emory Chemical Biology Discovery Center, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Stephen V Frye
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, Center for Integrative Chemical Biology and Drug Discovery, Chapel Hill, North Carolina, USA
| | - Opher Gileadi
- Alzheimer's Research UK Oxford Drug Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine Research Building, University of Oxford, Oxford, UK
| | - Paul E Brennan
- Alzheimer's Research UK Oxford Drug Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine Research Building, University of Oxford, Oxford, UK
| | - Allan I Levey
- Department of Neurology, Emory Goizueta Alzheimer's Disease Research Center, Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Alison D Axtman
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, Structural Genomics Consortium, Chapel Hill, North Carolina, USA.
| | - Kenneth H Pearce
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, Center for Integrative Chemical Biology and Drug Discovery, Chapel Hill, North Carolina, USA.
| | - Haian Fu
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, Georgia, USA; Emory Chemical Biology Discovery Center, Emory University School of Medicine, Atlanta, Georgia, USA.
| | - Vittorio L Katis
- Alzheimer's Research UK Oxford Drug Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine Research Building, University of Oxford, Oxford, UK.
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4
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Du Y, Bradshaw WJ, Leisner TM, Annor-Gyamfi JK, Qian K, Bashore FM, Sikdar A, Nwogbo FO, Ivanov AA, Frye SV, Gileadi O, Brennan PE, Levey AI, Axtman AD, Pearce KH, Fu H, Katis VL. Development of FERM domain protein-protein interaction inhibitors for MSN and CD44 as a potential therapeutic strategy for Alzheimer's disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.22.541727. [PMID: 37292860 PMCID: PMC10245921 DOI: 10.1101/2023.05.22.541727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recent genome-wide association studies have revealed genetic risk factors for Alzheimer's disease (AD) that are exclusively expressed in microglia within the brain. A proteomics approach identified moesin (MSN), a FERM (four-point-one ezrin radixin moesin) domain protein, and the receptor CD44 as hub proteins found within a co-expression module strongly linked to AD clinical and pathological traits as well as microglia. The FERM domain of MSN interacts with the phospholipid PIP2 and the cytoplasmic tails of receptors such as CD44. This study explored the feasibility of developing protein-protein interaction inhibitors that target the MSN-CD44 interaction. Structural and mutational analyses revealed that the FERM domain of MSN binds to CD44 by incorporating a beta strand within the F3 lobe. Phage-display studies identified an allosteric site located close to the PIP2 binding site in the FERM domain that affects CD44 binding within the F3 lobe. These findings support a model in which PIP2 binding to the FERM domain stimulates receptor tail binding through an allosteric mechanism that causes the F3 lobe to adopt an open conformation permissive for binding. High-throughput screening of a chemical library identified two compounds that disrupt the MSN-CD44 interaction, and one compound series was further optimized for biochemical activity, specificity, and solubility. The results suggest that the FERM domain holds potential as a drug development target. The small molecule preliminary leads generated from the study could serve as a foundation for additional medicinal chemistry effort with the goal of controlling microglial activity in AD by modifying the MSN-CD44 interaction.
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Affiliation(s)
- Yuhong Du
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA 30322, USA; Emory Chemical Biology Discovery Center, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - William J. Bradshaw
- Alzheimer’s Research UK Oxford Drug Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine Research Building, Old Road Campus, University of Oxford, Oxford, OX3 7FZ, UK
| | - Tina M. Leisner
- UNC Eshelman School of Pharmacy, Division of Chemical Biology and Medicinal Chemistry, Center for Integrative Chemical Biology and Drug Discovery, Chapel Hill, NC 27599, USA
| | - Joel K. Annor-Gyamfi
- UNC Eshelman School of Pharmacy, Division of Chemical Biology and Medicinal Chemistry, Structural Genomics Consortium, Chapel Hill, NC 27599, USA
| | - Kun Qian
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA 30322, USA; Emory Chemical Biology Discovery Center, Emory University School of Medicine, Atlanta, GA 30322, USA
- Current address: Chemical Biology Consortium Sweden, Division of Chemical Biology and Genome Engineering, Department of Medical Biochemistry and Biophysics, Karolinska Institute, 171 65 Solna, Sweden
| | - Frances M. Bashore
- UNC Eshelman School of Pharmacy, Division of Chemical Biology and Medicinal Chemistry, Structural Genomics Consortium, Chapel Hill, NC 27599, USA
| | - Arunima Sikdar
- UNC Eshelman School of Pharmacy, Division of Chemical Biology and Medicinal Chemistry, Center for Integrative Chemical Biology and Drug Discovery, Chapel Hill, NC 27599, USA
| | - Felix O. Nwogbo
- UNC Eshelman School of Pharmacy, Division of Chemical Biology and Medicinal Chemistry, Center for Integrative Chemical Biology and Drug Discovery, Chapel Hill, NC 27599, USA
| | - Andrey A. Ivanov
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA 30322, USA; Emory Chemical Biology Discovery Center, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Stephen V. Frye
- UNC Eshelman School of Pharmacy, Division of Chemical Biology and Medicinal Chemistry, Center for Integrative Chemical Biology and Drug Discovery, Chapel Hill, NC 27599, USA
| | - Opher Gileadi
- Alzheimer’s Research UK Oxford Drug Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine Research Building, Old Road Campus, University of Oxford, Oxford, OX3 7FZ, UK
- Current address: Structural Genomics Consortium, Department of Medicine, Karolinska Hospital and Karolinska Institute, 171 76 Stockholm, Sweden
| | - Paul E. Brennan
- Alzheimer’s Research UK Oxford Drug Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine Research Building, Old Road Campus, University of Oxford, Oxford, OX3 7FZ, UK
| | - Allan I. Levey
- Department of Neurology, Emory Goizueta Alzheimer’s Disease Research Center, Center for Neurodegenerative Disease, Emory University School of Medicine, Atlanta, GA 30322, USA
| | | | - Alison D. Axtman
- UNC Eshelman School of Pharmacy, Division of Chemical Biology and Medicinal Chemistry, Structural Genomics Consortium, Chapel Hill, NC 27599, USA
| | - Kenneth H. Pearce
- UNC Eshelman School of Pharmacy, Division of Chemical Biology and Medicinal Chemistry, Center for Integrative Chemical Biology and Drug Discovery, Chapel Hill, NC 27599, USA
| | - Haian Fu
- Department of Pharmacology and Chemical Biology, Emory University School of Medicine, Atlanta, GA 30322, USA; Emory Chemical Biology Discovery Center, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Vittorio L. Katis
- Alzheimer’s Research UK Oxford Drug Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine Research Building, Old Road Campus, University of Oxford, Oxford, OX3 7FZ, UK
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5
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Shao W, Li J, Piao Q, Yao X, Li M, Wang S, Song Z, Sun Y, Zheng L, Wang G, Liu L, Yu C, Huang Y, Bao Y, Sun L. FRMD3 inhibits the growth and metastasis of breast cancer through the ubiquitination-mediated degradation of vimentin and subsequent impairment of focal adhesion. Cell Death Dis 2023; 14:13. [PMID: 36631457 PMCID: PMC9834407 DOI: 10.1038/s41419-023-05552-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 12/21/2022] [Accepted: 01/03/2023] [Indexed: 01/12/2023]
Abstract
Recurrence and metastasis are the main causes of breast cancer (BRCA)-related death and remain a challenge for treatment. In-depth research on the molecular mechanisms underlying BRCA progression has been an important basis for developing precise biomarkers and therapy targets for early prediction and treatment of progressed BRCA. Herein, we identified FERM domain-containing protein 3 (FRMD3) as a novel potent BRCA tumor suppressor which is significantly downregulated in BRCA clinical tissue and cell lines, and low FRMD3 expression has been closely associated with progressive BRCA and shortened survival time in BRCA patients. Overexpression and knockdown experiments have revealed that FRMD3 significantly inhibits BRCA cell proliferation, migration, and invasion in vitro and suppresses BRCA xenograft growth and metastasis in vivo as well. Mechanistically, FRMD3 can interact with vimentin and ubiquitin protein ligase E3A(UBE3A) to induce the polyubiquitin-mediated proteasomal degradation of vimentin, which subsequently downregulates focal adhesion complex proteins and pro-cancerous signaling activation, thereby resulting in cytoskeletal rearrangement and defects in cell morphology and focal adhesion. Further evidence has confirmed that FRMD3-mediated vimentin degradation accounts for the anti-proliferation and anti-metastasis effects of FRMD3 on BRCA. Moreover, the N-terminal ubiquitin-like domain of FRMD3 has been identified as responsible for FRMD3-vimentin interaction through binding the head domain of vimentin and the truncated FRMD3 with the deletion of ubiquitin-like domain almost completely loses the anti-BRCA effects. Taken together, our study indicates significant potential for the use of FRMD3 as a novel prognosis biomarker and a therapeutic target of BRCA and provides an additional mechanism underlying the degradation of vimentin and BRCA progression.
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Affiliation(s)
- Wenjun Shao
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
- NMPA Key Laboratory for Quality of Cell and Gene Therapy Medicinal Products, Northeast Normal University, Changchun, 130024, China
| | - Jiawei Li
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Qianling Piao
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Xinlei Yao
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Mingyue Li
- NMPA Key Laboratory for Quality of Cell and Gene Therapy Medicinal Products, Northeast Normal University, Changchun, 130024, China
| | - Shuyue Wang
- NMPA Key Laboratory for Quality of Cell and Gene Therapy Medicinal Products, Northeast Normal University, Changchun, 130024, China
| | - Zhenbo Song
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Ying Sun
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Lihua Zheng
- NMPA Key Laboratory for Quality of Cell and Gene Therapy Medicinal Products, Northeast Normal University, Changchun, 130024, China
| | - Guannan Wang
- NMPA Key Laboratory for Quality of Cell and Gene Therapy Medicinal Products, Northeast Normal University, Changchun, 130024, China
| | - Lei Liu
- NMPA Key Laboratory for Quality of Cell and Gene Therapy Medicinal Products, Northeast Normal University, Changchun, 130024, China
| | - Chunlei Yu
- NMPA Key Laboratory for Quality of Cell and Gene Therapy Medicinal Products, Northeast Normal University, Changchun, 130024, China
| | - Yanxin Huang
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Yongli Bao
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Luguo Sun
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China.
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6
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Latour YL, Allaman MM, Barry DP, Smith TM, Williams KJ, McNamara KM, Jacobse J, Goettel JA, Delgado AG, Piazuelo MB, Zhao S, Gobert AP, Wilson KT. Epithelial talin-1 protects mice from citrobacter rodentium-induced colitis by restricting bacterial crypt intrusion and enhancing t cell immunity. Gut Microbes 2023; 15:2192623. [PMID: 36951501 PMCID: PMC10038039 DOI: 10.1080/19490976.2023.2192623] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 03/13/2023] [Indexed: 03/24/2023] Open
Abstract
Pathogenic enteric Escherichia coli present a significant burden to global health. Food-borne enteropathogenic E. coli (EPEC) and Shiga toxin-producing E. coli (STEC) utilize attaching and effacing (A/E) lesions and actin-dense pedestal formation to colonize the gastrointestinal tract. Talin-1 is a large structural protein that links the actin cytoskeleton to the extracellular matrix though direct influence on integrins. Here we show that mice lacking talin-1 in intestinal epithelial cells (Tln1Δepi) have heightened susceptibility to colonic disease caused by the A/E murine pathogen Citrobacter rodentium. Tln1Δepi mice exhibit decreased survival, and increased colonization, colon weight, and histologic colitis compared to littermate Tln1fl/fl controls. These findings were associated with decreased actin polymerization and increased infiltration of innate myeloperoxidase-expressing immune cells, confirmed as neutrophils by flow cytometry, but more bacterial dissemination deep into colonic crypts. Further evaluation of the immune population recruited to the mucosa in response to C. rodentium revealed that loss of Tln1 in colonic epithelial cells (CECs) results in impaired recruitment and activation of T cells. C. rodentium infection-induced colonic mucosal hyperplasia was exacerbated in Tln1Δepi mice compared to littermate controls. We demonstrate that this is associated with decreased CEC apoptosis and crowding of proliferating cells in the base of the glands. Taken together, talin-1 expression by CECs is important in the regulation of both epithelial renewal and the inflammatory T cell response in the setting of colitis caused by C. rodentium, suggesting that this protein functions in CECs to limit, rather than contribute to the pathogenesis of this enteric infection.
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Affiliation(s)
- Yvonne L. Latour
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Margaret M. Allaman
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Daniel P. Barry
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Thaddeus M. Smith
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Kamery J. Williams
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Kara M. McNamara
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Program in Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Justin Jacobse
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jeremy A. Goettel
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Alberto G. Delgado
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - M. Blanca Piazuelo
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Shilin Zhao
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Alain P. Gobert
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Keith T. Wilson
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Program in Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
- Center for Mucosal Inflammation and Cancer, Vanderbilt University Medical Center, Nashville, TN, USA
- Medical Service, Veterans Affairs Tennessee Valley Healthcare System, Nashville, TN, USA
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7
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Lu S, Ma M, Mao X, Bacino CA, Jankovic J, Sutton VR, Bartley JA, Wang X, Rosenfeld JA, Beleza-Meireles A, Chauhan J, Pan X, Li M, Liu P, Prescott K, Amin S, Davies G, Wangler MF, Dai Y, Bellen HJ. De novo variants in FRMD5 are associated with developmental delay, intellectual disability, ataxia, and abnormalities of eye movement. Am J Hum Genet 2022; 109:1932-1943. [PMID: 36206744 PMCID: PMC9606480 DOI: 10.1016/j.ajhg.2022.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 09/09/2022] [Indexed: 01/25/2023] Open
Abstract
Proteins containing the FERM (four-point-one, ezrin, radixin, and moesin) domain link the plasma membrane with cytoskeletal structures at specific cellular locations and have been implicated in the localization of cell-membrane-associated proteins and/or phosphoinositides. FERM domain-containing protein 5 (FRMD5) localizes at cell adherens junctions and stabilizes cell-cell contacts. To date, variants in FRMD5 have not been associated with a Mendelian disease in OMIM. Here, we describe eight probands with rare heterozygous missense variants in FRMD5 who present with developmental delay, intellectual disability, ataxia, seizures, and abnormalities of eye movement. The variants are de novo in all for whom parental testing was available (six out of eight probands), and human genetic datasets suggest that FRMD5 is intolerant to loss of function (LoF). We found that the fly ortholog of FRMD5, CG5022 (dFrmd), is expressed in the larval and adult central nervous systems where it is present in neurons but not in glia. dFrmd LoF mutant flies are viable but are extremely sensitive to heat shock, which induces severe seizures. The mutants also exhibit defective responses to light. The human FRMD5 reference (Ref) cDNA rescues the fly dFrmd LoF phenotypes. In contrast, all the FRMD5 variants tested in this study (c.340T>C, c.1051A>G, c.1053C>G, c.1054T>C, c.1045A>C, and c.1637A>G) behave as partial LoF variants. In addition, our results indicate that two variants that were tested have dominant-negative effects. In summary, the evidence supports that the observed variants in FRMD5 cause neurological symptoms in humans.
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Affiliation(s)
- Shenzhao Lu
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX 77030, USA
| | - Mengqi Ma
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX 77030, USA
| | - Xiao Mao
- National Health Commission Key Laboratory for Birth Defect Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan 410008, China; Department of Medical Genetics, Maternal and Child Health Hospital of Hunan Province, Changsha, Hunan 410008, China
| | - Carlos A Bacino
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA
| | - Joseph Jankovic
- Parkinson's Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, TX 77030, USA
| | - V Reid Sutton
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA
| | - James A Bartley
- Loma Linda University Children's Hospital, Loma Linda, CA 92354, USA
| | - Xueying Wang
- Department of Pediatrics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China
| | - Jill A Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Baylor Genetics Laboratories, Houston, TX 77021, USA
| | - Ana Beleza-Meireles
- Clinical Genetics Department, St Michael's Hospital, University Hospitals Bristol and Weston, Bristol BS1 3NU, UK
| | - Jaynee Chauhan
- Yorkshire Regional Genetics Service, Leeds Teaching Hospitals NHS Trust, Chapel Allerton Hospital, Leeds LS7 4SA, UK
| | - Xueyang Pan
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX 77030, USA
| | - Megan Li
- Invitae, San Francisco, CA 94103, USA
| | - Pengfei Liu
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Baylor Genetics Laboratories, Houston, TX 77021, USA
| | - Katrina Prescott
- Yorkshire Regional Genetics Service, Leeds Teaching Hospitals NHS Trust, Chapel Allerton Hospital, Leeds LS7 4SA, UK
| | - Sam Amin
- Paediatric Neurology Department, Bristol Royal Pediatric Hospital, University Hospitals Bristol and Weston, Bristol BS1 3NU, UK
| | | | - Michael F Wangler
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA
| | - Yuwei Dai
- National Health Commission Key Laboratory for Birth Defect Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan 410008, China; Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.
| | - Hugo J Bellen
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX 77030, USA; Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA.
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8
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Huang L, Zhou Y, Chen W, Lin P, Xie Y, He K, Zhang S, Wu Y, Li N. Correlations of FRMD7 gene mutations with ocular oscillations. Sci Rep 2022; 12:9914. [PMID: 35705619 PMCID: PMC9200781 DOI: 10.1038/s41598-022-14144-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 05/11/2022] [Indexed: 11/30/2022] Open
Abstract
Mutations in the FERM domain containing 7 (FRMD7) gene have been proven to be responsible for infantile nystagmus (IN). The purpose of this study is to investigate FRMD7 gene mutations in patients with IN, and to evaluate the nystagmus intensity among patients with and without FRMD7 mutations. The affected males were subdivided into three groups according to whether or not having FRMD7 mutations and the types of mutations. Fifty-two mutations were detected in FRMD7 in 56 pedigrees and 34 sporadic patients with IN, including 28 novel and 24 previous reported mutations. The novel identified mutations further expand the spectrum of FRMD7 mutations. The parameters of nystagmus intensity and the patients’ best corrected visual acuity were not statistically different among the patients with and without identified FRMD7 mutations, and also not different among patients with different mutant types. The FERM-C domain, whose amino acids are encoded by exons 7, 8 and 9, could be the harbor region for most mutations. Loss-of-function is suggested to be the common molecular mechanism for the X-linked infantile nystagmus.
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Affiliation(s)
- Lijuan Huang
- Department of Ophthalmology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China.,Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, No 56. Nan Li Shi Rd, Xicheng District, Beijing, 100045, China
| | - Yunyu Zhou
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, No 56. Nan Li Shi Rd, Xicheng District, Beijing, 100045, China
| | - Wencong Chen
- Department of Biostatistics, Vanderbilt University Medical Center, 2525 West End Avenue, Suite 1100, Nashville, TN, 37203, USA
| | - Ping Lin
- Department of Ophthalmology, Xi'an Children's Hospital, Xi'an, 710002, China
| | - Yan Xie
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, No 56. Nan Li Shi Rd, Xicheng District, Beijing, 100045, China
| | - Kaiwen He
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, No 56. Nan Li Shi Rd, Xicheng District, Beijing, 100045, China
| | - Shasha Zhang
- Department of Ophthalmology, Xi'an Children's Hospital, Xi'an, 710002, China
| | - Yuyu Wu
- Department of Ophthalmology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China.
| | - Ningdong Li
- Department of Ophthalmology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China. .,Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, No 56. Nan Li Shi Rd, Xicheng District, Beijing, 100045, China. .,Department of Ophthalmology, Xi'an Children's Hospital, Xi'an, 710002, China. .,Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, 100045, China. .,Department of Ophthalmology, Children's Hospital, Capital Institute of Pediatrics, Beijing, 100020, China.
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9
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Oncel S, Basson MD. Gut homeostasis, injury, and healing: New therapeutic targets. World J Gastroenterol 2022; 28:1725-1750. [PMID: 35633906 PMCID: PMC9099196 DOI: 10.3748/wjg.v28.i17.1725] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/12/2021] [Accepted: 03/27/2022] [Indexed: 02/06/2023] Open
Abstract
The integrity of the gastrointestinal mucosa plays a crucial role in gut homeostasis, which depends upon the balance between mucosal injury by destructive factors and healing via protective factors. The persistence of noxious agents such as acid, pepsin, nonsteroidal anti-inflammatory drugs, or Helicobacter pylori breaks down the mucosal barrier and injury occurs. Depending upon the size and site of the wound, it is healed by complex and overlapping processes involving membrane resealing, cell spreading, purse-string contraction, restitution, differentiation, angiogenesis, and vasculogenesis, each modulated by extracellular regulators. Unfortunately, the gut does not always heal, leading to such pathology as peptic ulcers or inflammatory bowel disease. Currently available therapeutics such as proton pump inhibitors, histamine-2 receptor antagonists, sucralfate, 5-aminosalicylate, antibiotics, corticosteroids, and immunosuppressants all attempt to minimize or reduce injury to the gastrointestinal tract. More recent studies have focused on improving mucosal defense or directly promoting mucosal repair. Many investigations have sought to enhance mucosal defense by stimulating mucus secretion, mucosal blood flow, or tight junction function. Conversely, new attempts to directly promote mucosal repair target proteins that modulate cytoskeleton dynamics such as tubulin, talin, Ehm2, filamin-a, gelsolin, and flightless I or that proteins regulate focal adhesions dynamics such as focal adhesion kinase. This article summarizes the pathobiology of gastrointestinal mucosal healing and reviews potential new therapeutic targets.
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Affiliation(s)
- Sema Oncel
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
| | - Marc D Basson
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
- Department of Surgery, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
- Department of Pathology, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
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10
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The tyrosine phosphatase PTPN14 inhibits the activation of STAT3 in PEDV infected Vero cells. Vet Microbiol 2022; 267:109391. [DOI: 10.1016/j.vetmic.2022.109391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 02/25/2022] [Accepted: 02/27/2022] [Indexed: 11/23/2022]
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11
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Keddy C, Shinde P, Jones K, Kaech S, Somwar R, Shinde U, Davare MA. Resistance profile and structural modeling of next-generation ROS1 tyrosine kinase inhibitors. Mol Cancer Ther 2021; 21:336-346. [PMID: 34907086 DOI: 10.1158/1535-7163.mct-21-0395] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 10/08/2021] [Accepted: 12/01/2021] [Indexed: 11/16/2022]
Abstract
ROS1 fusion proteins resulting from chromosomal rearrangements of the ROS1 gene are targetable oncogenic drivers in diverse cancers. Acquired resistance to targeted inhibitors curtails clinical benefit and response durability. Entrectinib, a NTRK/ROS1/ALK targeted tyrosine kinase inhibitor (TKI), was approved for the treatment of ROS1 fusion-positive NSCLC in 2019. In addition, lorlatinib and repotrectinib are actively being explored in the setting of treatment naïve or crizotinib-resistant ROS1 fusion driven NSCLC. Here, we employ an unbiased forward mutagenesis screen in Ba/F3 CD74-ROS1 and EZR-ROS1 cells to identify resistance liabilities to entrectinib, lorlatinib, and repotrectinib. ROS1F2004C emerged as a recurrent entrectinib resistant mutation and ROS1G2032R was discovered in entrectinib and lorlatinib-resistant clones. Cell-based and modeling data show that entrectinib is a dual type I/II mode inhibitor, and thus liable to both types of resistant mutations. Comprehensive profiling of all clinically relevant kinase domain mutations showed that ROS1L2086F is broadly resistant to all type I inhibitors, but remains sensitive to type II inhibitors. ROS1F2004C/I/V are resistant to type I inhibitors, entrectinib and crizotinib, and type II inhibitor, cabozantinib, but retain sensitivity to the type I macrocyclic inhibitors. Development of new, more selective type II ROS1 inhibitor(s) or potentially cycling type I and type II inhibitors may be one way to expand durability of ROS1 targeted agents.
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Affiliation(s)
- Clare Keddy
- Pediatrics, Oregon Health & Science University
| | | | - Kristen Jones
- Pediatrics, Oregon Health & Science University School of Medicine
| | - Stefanie Kaech
- Neurology, Oregon Health & Science University School of Medicine
| | - Romel Somwar
- Pathology, Memorial Sloan Kettering Cancer Center
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12
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The protein 4.1R downregulates VEGFA in M2 macrophages to inhibit colon cancer metastasis. Exp Cell Res 2021; 409:112896. [PMID: 34717920 DOI: 10.1016/j.yexcr.2021.112896] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/22/2021] [Accepted: 10/23/2021] [Indexed: 12/14/2022]
Abstract
M2 macrophages are crucial components of the tumour microenvironment and have been shown to be closely related to tumour progression. Co-culture with 4.1R-/- M2 macrophages enhances the malignancy of colon cancer (CC), but the mechanism remains unclear. Here, we report that protein 4.1R knockout reduced the phagocytosis of M2 macrophages (M-CSF/IL-4-treated bone marrow cells) and promoted MC38 colon cancer cell proliferation, migration, invasion, tumour formation and epithelial-mesenchymal transition (EMT), which are regulated by M2 macrophages. Further mechanistic dissection revealed that the 4.1R knockout upregulated vascular endothelial growth factor A (VEGFA) secreted by M2 macrophages and promoted colon cancer progression by activating the PI3K/AKT signalling pathway. In summary, our present study identified that 4.1R downregulates VEGFA secretion in M2 macrophages and delays the malignant potential of colon cancer by inhibiting the PI3K/AKT signalling pathway.
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13
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Ning S, Hua L, Ji Z, Fan D, Meng X, Li Z, Wang Q, Guo Z. Protein 4.1 family and ion channel proteins interact to regulate the process of heart failure in rats. Acta Histochem 2021; 123:151748. [PMID: 34271280 DOI: 10.1016/j.acthis.2021.151748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 02/06/2023]
Abstract
Heart failure (HF) is a major cause of death in cardiovascular diseases worldwide, and its molecular mechanisms and effective prevention strategies remain to be further studied. The myocardial cytoskeleton plays a pivotal role in many heart diseases. However, little is known about the function of the membrane cytoskeleton 4.1 protein family and related regulatory mechanisms in the pathogenesis of HF. In this study, we detected the localization and expression of the protein 4.1 family and ion channel proteins in a rat HF model induced by doxorubicin (DOX), and studied the interactions between them. Our results showed that compared with the control group, the HF group displayed an increased expression level of protein 4.1R and decreased levels of protein 4.1 G and 4.1 N. The Nav1.5 protein levels were significantly increased, while the SERCA2a and Cav1.2 protein levels were significantly decreased in the HF group. Furthermore, there is co-localization and interaction between protein 4.1R and Nav1.5, protein 4.1 G and SERCA2a, protein 4.1 N and Cav1.2, respectively. Taken together, the results indicated that the protein 4.1 family might be involved in the occurrence and development of HF through its interaction with ion channel proteins, suggesting that 4.1 proteins may serve as a novel therapeutic target for HF.
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Affiliation(s)
- Shuwei Ning
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China
| | - Lei Hua
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China
| | - Zhenyu Ji
- Henan Academy of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Dandan Fan
- Henan Academy of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Xiangguang Meng
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China
| | - Zhiying Li
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China
| | - Qian Wang
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China
| | - Zhikun Guo
- Zhengzhou Key Laboratory, Zhengzhou No. 7 People's Hospital, Zhengzhou, 450016, China; Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang, 453003, China.
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14
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Gaweł AM, Ratajczak M, Gajda E, Grzanka M, Paziewska A, Cieślicka M, Kulecka M, Oczko-Wojciechowska M, Godlewska M. Analysis of the Role of FRMD5 in the Biology of Papillary Thyroid Carcinoma. Int J Mol Sci 2021; 22:6726. [PMID: 34201607 PMCID: PMC8268710 DOI: 10.3390/ijms22136726] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/09/2021] [Accepted: 06/17/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Thyroid carcinoma (TC) is the most common endocrine system malignancy, and papillary thyroid carcinoma (PTC) accounts for >80% of all TC cases. Nevertheless, PTC pathogenesis is still not fully understood. The aim of the study was to elucidate the role of the FRMD5 protein in the regulation of biological pathways associated with the development of PTC. We imply that the presence of certain genetic aberrations (e.g., BRAF V600E mutation) is associated with the activity of FRMD5. METHODS The studies were conducted on TPC1 and BCPAP (BRAF V600E) model PTC-derived cells. Transfection with siRNA was used to deplete the expression of FRMD5. The mRNA expression and protein yield were evaluated using RT-qPCR and Western blot techniques. Proliferation, migration, invasiveness, adhesion, spheroid formation, and survival tests were performed. RNA sequencing and phospho-kinase proteome profiling were used to assess signaling pathways associated with the FRMD5 expressional status. RESULTS The obtained data indicate that the expression of FRMD5 is significantly enhanced in BRAF V600E tumor specimens and cells. It was observed that a drop in intracellular yield of FRMD5 results in significant alternations in the migration, invasiveness, adhesion, and spheroid formation potential of PTC-derived cells. Importantly, significant divergences in the effect of FRMD5 depletion in both BRAF-wt and BRAF-mutated PTC cells were observed. It was also found that knockdown of FRMD5 significantly alters the expression of multidrug resistant genes. CONCLUSIONS This is the first report highlighting the importance of the FRMD5 protein in the biology of PTCs. The results suggest that the FRMD5 protein can play an important role in controlling the metastatic potential and multidrug resistance of thyroid tumor cells.
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Affiliation(s)
- Agata M. Gaweł
- Centre of Postgraduate Medical Education, Department of Biochemistry and Molecular Biology, Marymoncka 99/103, 01-813 Warsaw, Poland; (A.M.G.); (M.G.)
- Faculty of Medicine, Medical University of Warsaw, Histology and Embryology Students’ Science Association HESA, Chałubinskiego 5, 02-004 Warsaw, Poland
| | - Maciej Ratajczak
- Centre of Postgraduate Medical Education, Department of Endocrinology, Marymoncka 99/103, 01-813 Warsaw, Poland;
| | - Ewa Gajda
- Centre of Postgraduate Medical Education, Department of Immunohematology, Marymoncka 99/103, 01-813 Warsaw, Poland;
| | - Małgorzata Grzanka
- Centre of Postgraduate Medical Education, Department of Biochemistry and Molecular Biology, Marymoncka 99/103, 01-813 Warsaw, Poland; (A.M.G.); (M.G.)
| | - Agnieszka Paziewska
- Centre of Postgraduate Medical Education, Department of Gastroenterology, Hepatology and Clinical Oncology, Marymoncka 99/103, 01-813 Warsaw, Poland; (A.P.); (M.K.)
- Centre of Postgraduate Medical Education, Department of Neuroendocrinology, Marymoncka 99/103, 01-813 Warsaw, Poland
| | - Marta Cieślicka
- Department of Genetic and Molecular Diagnostics of Cancer, M. Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, Wybrzeze Armii Krajowej 15, 44-102 Gliwice, Poland; (M.C.); (M.O.-W.)
| | - Maria Kulecka
- Centre of Postgraduate Medical Education, Department of Gastroenterology, Hepatology and Clinical Oncology, Marymoncka 99/103, 01-813 Warsaw, Poland; (A.P.); (M.K.)
| | - Małgorzata Oczko-Wojciechowska
- Department of Genetic and Molecular Diagnostics of Cancer, M. Sklodowska-Curie National Research Institute of Oncology Gliwice Branch, Wybrzeze Armii Krajowej 15, 44-102 Gliwice, Poland; (M.C.); (M.O.-W.)
| | - Marlena Godlewska
- Centre of Postgraduate Medical Education, Department of Biochemistry and Molecular Biology, Marymoncka 99/103, 01-813 Warsaw, Poland; (A.M.G.); (M.G.)
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15
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Zhang P, Azizi L, Kukkurainen S, Gao T, Baikoghli M, Jacquier MC, Sun Y, Määttä JAE, Cheng RH, Wehrle-Haller B, Hytönen VP, Wu J. Crystal structure of the FERM-folded talin head reveals the determinants for integrin binding. Proc Natl Acad Sci U S A 2020; 117:32402-32412. [PMID: 33288722 PMCID: PMC7768682 DOI: 10.1073/pnas.2014583117] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Binding of the intracellular adapter proteins talin and its cofactor, kindlin, to the integrin receptors induces integrin activation and clustering. These processes are essential for cell adhesion, migration, and organ development. Although the talin head, the integrin-binding segment in talin, possesses a typical FERM-domain sequence, a truncated form has been crystallized in an unexpected, elongated form. This form, however, lacks a C-terminal fragment and possesses reduced β3-integrin binding. Here, we present a crystal structure of a full-length talin head in complex with the β3-integrin tail. The structure reveals a compact FERM-like conformation and a tightly associated N-P-L-Y motif of β3-integrin. A critical C-terminal poly-lysine motif mediates FERM interdomain contacts and assures the tight association with the β3-integrin cytoplasmic segment. Removal of the poly-lysine motif or disrupting the FERM-folded configuration of the talin head significantly impairs integrin activation and clustering. Therefore, structural characterization of the FERM-folded active talin head provides fundamental understanding of the regulatory mechanism of integrin function.
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Affiliation(s)
- Pingfeng Zhang
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA 19111
| | - Latifeh Azizi
- Faculty of Medicine and Health Technology, Tampere University, FI-33520 Tampere, Finland
- Department of Clinical Chemistry, Fimlab Laboratories, FI-33520 Tampere, Finland
| | - Sampo Kukkurainen
- Faculty of Medicine and Health Technology, Tampere University, FI-33520 Tampere, Finland
- Department of Clinical Chemistry, Fimlab Laboratories, FI-33520 Tampere, Finland
| | - Tong Gao
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA 19111
| | - Mo Baikoghli
- Department of Molecular and Cellular Biology, University of California, Davis, CA 95616
| | - Marie-Claude Jacquier
- Department of Cell Physiology and Metabolism, Centre Médical Universitaire, University of Geneva, 1211 Geneva 4, Switzerland
| | - Yijuan Sun
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA 19111
| | - Juha A E Määttä
- Faculty of Medicine and Health Technology, Tampere University, FI-33520 Tampere, Finland
- Department of Clinical Chemistry, Fimlab Laboratories, FI-33520 Tampere, Finland
| | - R Holland Cheng
- Department of Molecular and Cellular Biology, University of California, Davis, CA 95616
| | - Bernhard Wehrle-Haller
- Department of Cell Physiology and Metabolism, Centre Médical Universitaire, University of Geneva, 1211 Geneva 4, Switzerland
| | - Vesa P Hytönen
- Faculty of Medicine and Health Technology, Tampere University, FI-33520 Tampere, Finland;
- Department of Clinical Chemistry, Fimlab Laboratories, FI-33520 Tampere, Finland
| | - Jinhua Wu
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA 19111;
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16
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Chytła A, Gajdzik-Nowak W, Olszewska P, Biernatowska A, Sikorski AF, Czogalla A. Not Just Another Scaffolding Protein Family: The Multifaceted MPPs. Molecules 2020; 25:molecules25214954. [PMID: 33114686 PMCID: PMC7662862 DOI: 10.3390/molecules25214954] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/16/2020] [Accepted: 10/20/2020] [Indexed: 01/03/2023] Open
Abstract
Membrane palmitoylated proteins (MPPs) are a subfamily of a larger group of multidomain proteins, namely, membrane-associated guanylate kinases (MAGUKs). The ubiquitous expression and multidomain structure of MPPs provide the ability to form diverse protein complexes at the cell membranes, which are involved in a wide range of cellular processes, including establishing the proper cell structure, polarity and cell adhesion. The formation of MPP-dependent complexes in various cell types seems to be based on similar principles, but involves members of different protein groups, such as 4.1-ezrin-radixin-moesin (FERM) domain-containing proteins, polarity proteins or other MAGUKs, showing their multifaceted nature. In this review, we discuss the function of the MPP family in the formation of multiple protein complexes. Notably, we depict their significant role for cell physiology, as the loss of interactions between proteins involved in the complex has a variety of negative consequences. Moreover, based on recent studies concerning the mechanism of membrane raft formation, we shed new light on a possible role played by MPPs in lateral membrane organization.
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Affiliation(s)
- Agnieszka Chytła
- Department of Cytobiochemistry, Faculty of Biotechnology, University of Wroclaw, 50-383 Wroclaw, Poland; (A.C.); (W.G.-N.); (P.O.); (A.B.)
| | - Weronika Gajdzik-Nowak
- Department of Cytobiochemistry, Faculty of Biotechnology, University of Wroclaw, 50-383 Wroclaw, Poland; (A.C.); (W.G.-N.); (P.O.); (A.B.)
| | - Paulina Olszewska
- Department of Cytobiochemistry, Faculty of Biotechnology, University of Wroclaw, 50-383 Wroclaw, Poland; (A.C.); (W.G.-N.); (P.O.); (A.B.)
| | - Agnieszka Biernatowska
- Department of Cytobiochemistry, Faculty of Biotechnology, University of Wroclaw, 50-383 Wroclaw, Poland; (A.C.); (W.G.-N.); (P.O.); (A.B.)
| | - Aleksander F. Sikorski
- Research and Development Center, Regional Specialist Hospital, Kamieńskiego 73a, 51-154 Wroclaw, Poland;
| | - Aleksander Czogalla
- Department of Cytobiochemistry, Faculty of Biotechnology, University of Wroclaw, 50-383 Wroclaw, Poland; (A.C.); (W.G.-N.); (P.O.); (A.B.)
- Correspondence: ; Tel.: +48-71375-6356
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17
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Dana PM, Taghavipour M, Mirzaei H, Yousefi B, Moazzami B, Chaichian S, Asemi Z. Circular RNA as a potential diagnostic and/or therapeutic target for endometriosis. Biomark Med 2020; 14:1277-1287. [PMID: 33021386 DOI: 10.2217/bmm-2020-0167] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Endometriosis is a pathology form of endometrium that behaves in a similar way to malignancies, such as invasion and resistance to apoptosis. Circular RNAs (CircRNAs) are a class of noncoding RNAs that have several biological functions including, miRNA sponging, sequestering of proteins, enhancing parental gene expression and translation resulting in polypeptides. In this review, we highlighted the roles of circRNAs as potential diagnostic and therapeutic biomarkers in endometriosis. Moreover, we summarized the roles of circRNAs in the pathogenesis of endometriosis via different signaling pathways, such as the miRNA network and apoptosis.
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Affiliation(s)
- Parisa M Dana
- Research Center for Biochemistry & Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, IR Iran
| | - Mona Taghavipour
- Department of Gynecology & Obstetrics, Ramsar Campus, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry & Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, IR Iran
| | - Bahman Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bahram Moazzami
- Pars Advanced & Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Shahla Chaichian
- Pars Advanced & Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry & Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, IR Iran
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18
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Liang G, Duan C, He J, Ma W, Dai X. PTPN14, a target gene of miR-4295, restricts the growth and invasion of osteosarcoma cells through inactivation of YAP1 signalling. Clin Exp Pharmacol Physiol 2020; 47:1301-1310. [PMID: 32141101 DOI: 10.1111/1440-1681.13296] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 02/27/2020] [Accepted: 03/01/2020] [Indexed: 11/26/2022]
Abstract
Non-receptor tyrosine phosphatase 14 (PTPN14) has emerged as a novel tumour-suppressor in a wide range of human cancer types. However, the role of PTPN14 in osteosarcoma remains undetermined. In the present study, we aimed to explore the expression pattern, biological function, and regulation of PTPN14 in osteosarcoma. Low PTPN14 expression levels were detected in osteosarcoma cells, and PTPN14 overexpression markedly decreased the proliferation, colony formation, and invasive potential of osteosarcoma cells. Bioinformatics analysis predicted PTPN14 as a potential target gene of microRNA-4295 (miR-4295), and this prediction was validated by a dual-luciferase reporter assay. PTPN14 expression was negatively modulated by miR-4295 in osteosarcoma cells. Moreover, PTPN14 expression was inversely correlated with miR-4295 expression in osteosarcoma tissues. Notably, miR-4295 inhibition significantly restricted the proliferation and invasion of osteosarcoma cells. PTPN14 overexpression or miR-4295 inhibition increased the phosphorylation of Yes-associated protein 1 (YAP1) and impeded YAP1 nuclear translocation, leading to inhibition of YAP1-mediated transcriptional activity. However, the miR-4925-inhibition-mediated antitumour effect was partially reversed by PTPN14 knockdown. Overall, these results demonstrate that PTPN14 is a miR-4295 target gene and it exerts a tumour-suppressive function in osteosarcoma cells via inactivation of YAP1. Our study uncovers a miR-4295-PTPN14-YAP1 signalling pathway that may play a crucial role in the progression of osteosarcoma.
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Affiliation(s)
- Gaofeng Liang
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Orthopaedics, 521 Hospital of Norinco Group, Xi'an, China
| | - Chaopeng Duan
- Department of Orthopaedics, 521 Hospital of Norinco Group, Xi'an, China
| | - June He
- 521 Hospital of Norinco Group, Xi'an, China
| | - Wei Ma
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xing Dai
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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19
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Draberova L, Draberova H, Potuckova L, Halova I, Bambouskova M, Mohandas N, Draber P. Cytoskeletal Protein 4.1R Is a Positive Regulator of the FcεRI Signaling and Chemotaxis in Mast Cells. Front Immunol 2020; 10:3068. [PMID: 31993060 PMCID: PMC6970983 DOI: 10.3389/fimmu.2019.03068] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 12/16/2019] [Indexed: 12/11/2022] Open
Abstract
Protein 4.1R, a member of the 4.1 family, functions as a bridge between cytoskeletal and plasma membrane proteins. It is expressed in T cells, where it binds to a linker for activation of T cell (LAT) family member 1 and inhibits its phosphorylation and downstream signaling events after T cell receptor triggering. The role of the 4.1R protein in cell activation through other immunoreceptors is not known. In this study, we used 4.1R-deficient (4.1R-KO) and 4.1R wild-type (WT) mice and explored the role of the 4.1R protein in the high-affinity IgE receptor (FcεRI) signaling in mast cells. We found that bone marrow mast cells (BMMCs) derived from 4.1R-KO mice showed normal growth in vitro and expressed FcεRI and c-KIT at levels comparable to WT cells. However, 4.1R-KO cells exhibited reduced antigen-induced degranulation, calcium response, and secretion of tumor necrosis factor-α. Chemotaxis toward antigen and stem cell factor (SCF) and spreading on fibronectin were also reduced in 4.1R-KO BMMCs, whereas prostaglandin E2-mediated chemotaxis was not affected. Antibody-induced aggregation of tetraspanin CD9 inhibited chemotaxis toward antigen in WT but not 4.1R-KO BMMCs, implying a CD9-4.1R protein cross-talk. Further studies documented that in the absence of 4.1R, antigen-mediated phosphorylation of FcεRI β and γ subunits was not affected, but phosphorylation of SYK and subsequent signaling events such as phosphorylation of LAT1, phospholipase Cγ1, phosphatases (SHP1 and SHIP), MAP family kinases (p38, ERK, JNK), STAT5, CBL, and mTOR were reduced. Immunoprecipitation studies showed the presence of both LAT1 and LAT2 (LAT, family member 2) in 4.1R immunocomplexes. The positive regulatory role of 4.1R protein in FcεRI-triggered activation was supported by in vivo experiments in which 4.1R-KO mice showed the normal presence of mast cells in the ears and peritoneum, but exhibited impaired passive cutaneous anaphylaxis. The combined data indicate that the 4.1R protein functions as a positive regulator in the early activation events after FcεRI triggering in mast cells.
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Affiliation(s)
- Lubica Draberova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Helena Draberova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Lucie Potuckova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Ivana Halova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Monika Bambouskova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Narla Mohandas
- Red Cell Physiology Laboratory, New York Blood Center, New York, NY, United States
| | - Petr Draber
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
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20
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Shabardina V, Kashima Y, Suzuki Y, Makalowski W. Emergence and Evolution of ERM Proteins and Merlin in Metazoans. Genome Biol Evol 2020; 12:3710-3724. [PMID: 31851361 PMCID: PMC6978628 DOI: 10.1093/gbe/evz265] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2019] [Indexed: 12/18/2022] Open
Abstract
Ezrin, radixin, moesin, and merlin are cytoskeletal proteins, whose functions are specific to metazoans. They participate in cell cortex rearrangement, including cell-cell contact formation, and play an important role in cancer progression. Here, we have performed a comprehensive phylogenetic analysis of the proteins spanning 87 species. The results describe a possible mechanism for the protein family origin in the root of Metazoa, paralogs diversification in vertebrates, and acquisition of novel functions, including tumor suppression. In addition, a merlin paralog, present in most vertebrates but lost in mammals, has been described here for the first time. We have also highlighted a set of amino acid variations within the conserved motifs as the candidates for determining physiological differences between ERM paralogs.
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Affiliation(s)
| | - Yukie Kashima
- Department of Computational Biology and Medical Sciences, The University of Tokyo, Kashiwa, Japan
| | - Yutaka Suzuki
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, The University of Tokyo, Kashiwa, Japan
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21
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Han X, Sun T, Hong J, Wei R, Dong Y, Huang D, Chen J, Ren X, Zhou H, Tian W, Jia Y. Nonreceptor tyrosine phosphatase 14 promotes proliferation and migration through regulating phosphorylation of YAP of Hippo signaling pathway in gastric cancer cells. J Cell Biochem 2019; 120:17723-17730. [DOI: 10.1002/jcb.29038] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 05/02/2019] [Accepted: 05/03/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Xu Han
- Department of Epidemiology, College of Public Health Harbin Medical University Harbin Heilongjiang P.R. China
| | - Tong Sun
- Department of Epidemiology, College of Public Health Harbin Medical University Harbin Heilongjiang P.R. China
| | - Jia Hong
- Department of Epidemiology, College of Public Health Harbin Medical University Harbin Heilongjiang P.R. China
| | - Rongrong Wei
- Department of Epidemiology, College of Public Health Harbin Medical University Harbin Heilongjiang P.R. China
| | - Yingzi Dong
- Department of Epidemiology, College of Public Health Harbin Medical University Harbin Heilongjiang P.R. China
| | - Di Huang
- Department of Epidemiology, College of Public Health Harbin Medical University Harbin Heilongjiang P.R. China
| | - Jie Chen
- Department of Epidemiology, College of Public Health Harbin Medical University Harbin Heilongjiang P.R. China
| | - Xiyun Ren
- Department of Epidemiology, College of Public Health Harbin Medical University Harbin Heilongjiang P.R. China
| | - Haibo Zhou
- Department of Epidemiology, College of Public Health Harbin Medical University Harbin Heilongjiang P.R. China
| | - Wenjing Tian
- Department of Epidemiology, College of Public Health Harbin Medical University Harbin Heilongjiang P.R. China
| | - Yunhe Jia
- Department of Colorectal Cancer Surgery, The Third Affiliated Hospital Harbin Medical University Harbin Heilongjiang P.R. China
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22
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Wang D, Luo Y, Wang G, Yang Q. Circular RNA expression profiles and bioinformatics analysis in ovarian endometriosis. Mol Genet Genomic Med 2019; 7:e00756. [PMID: 31144476 PMCID: PMC6637292 DOI: 10.1002/mgg3.756] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/25/2019] [Accepted: 04/30/2019] [Indexed: 12/16/2022] Open
Abstract
Background Circular RNAs (circRNAs) with miRNA response elements (MREs) could function as competing endogenous RNA (ceRNA) in regulating gene expression, thus playing vital roles in pathogenesis and progression of many diseases. However, the function of circRNAs in endometriosis remains unknown. This study was carried to profile the expression patterns of circRNAs in ovarian endometriosis. Methods High throughput RNA‐Seq was performed in six paired ectopic and eutopic endometrium tissues (ecEM vs. euEM), followed by quantitative real‐time polymerase chain reaction (qRT‐PCR) in 30 paired samples. Through bioinformatics prediction, we constructed a circRNA‐miRNA ‐mRNA network and elucidated circRNAs functions by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. Results A total of 146 upregulated and 148 downregulated circRNAs were identified, binding with 2,495 MREs. The qRT‐PCR validation results of four upregulated circRNAs matched the RNA‐Seq data. The ceRNA network included 48 miRNAs and 296 mRNAs. Functional analysis revealed several important pathways such as MAPK signaling pathway, and PI3K‐AKT signaling pathway, which might be associated with the pathogenesis and development of endometriosis. Conclusion Our data suggested that circRNAs are differentially expressed in endometriosis, which might be candidate factors for pathogenesis of this disease and be considered as promising therapeutic targets in the future.
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Affiliation(s)
- Dandan Wang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yajuan Luo
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Guangwei Wang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qing Yang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
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23
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Kowtharapu BS, Prakasam RK, Murín R, Koczan D, Stahnke T, Wree A, Jünemann AGM, Stachs O. Role of Bone Morphogenetic Protein 7 (BMP7) in the Modulation of Corneal Stromal and Epithelial Cell Functions. Int J Mol Sci 2018; 19:ijms19051415. [PMID: 29747422 PMCID: PMC5983782 DOI: 10.3390/ijms19051415] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/02/2018] [Accepted: 05/07/2018] [Indexed: 12/20/2022] Open
Abstract
In the cornea, healing of the wounded avascular surface is an intricate process comprising the involvement of epithelial, stromal and neuronal cell interactions. These interactions result to the release of various growth factors that play prominent roles during corneal wound healing response. Bone morphogenetic proteins (BMPs) are unique multi-functional potent growth factors of the transforming growth factor-beta (TGF-β) superfamily. Treatment of corneal epithelial cells with substance P and nerve growth factor resulted to an increase in the expression of BMP7 mRNA. Since BMP7 is known to modulate the process of corneal wound healing, in this present study, we investigated the influence of exogenous rhBMP7 on human corneal epithelial cell and stromal cell (SFs) function. To obtain a high-fidelity expression profiling of activated biomarkers and pathways, transcriptome-wide gene-level expression profiling of epithelial cells in the presence of BMP7 was performed. Gene ontology analysis shows BMP7 stimulation activated TGF-β signaling and cell cycle pathways, whereas biological processes related to cell cycle, microtubule and intermediate filament cytoskeleton organization were significantly impacted in corneal epithelial cells. Scratch wound healing assay showed increased motility and migration of BMP7 treated epithelial cells. BMP7 stimulation studies show activation of MAPK cascade proteins in epithelial cells and SFs. Similarly, a difference in the expression of claudin, Zink finger E-box-binding homeobox 1 was observed along with phosphorylation levels of cofilin in epithelial cells. Stimulation of SFs with BMP7 activated them with increased expression of α-smooth muscle actin. In addition, an elevated phosphorylation of epidermal growth factor receptor following BMP7 stimulation was also observed both in corneal epithelial cells and SFs. Based on our transcriptome analysis data on epithelial cells and the results obtained in SFs, we conclude that BMP7 contributes to epithelial-to-mesenchymal transition-like responses and plays a role equivalent to TGF-β in the course of corneal wound healing.
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Affiliation(s)
- Bhavani S Kowtharapu
- Department of Ophthalmology, Rostock University Medical Center, 18057 Rostock, Germany.
| | - Ruby Kala Prakasam
- Department of Ophthalmology, Rostock University Medical Center, 18057 Rostock, Germany.
| | - Radovan Murín
- Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 03601 Martin, Slovakia.
| | - Dirk Koczan
- Institute for Immunology, Rostock University Medical Center, 18057 Rostock, Germany.
| | - Thomas Stahnke
- Department of Ophthalmology, Rostock University Medical Center, 18057 Rostock, Germany.
| | - Andreas Wree
- Institute for Anatomy, Rostock University Medical Center, 18057 Rostock, Germany.
| | - Anselm G M Jünemann
- Department of Ophthalmology, Rostock University Medical Center, 18057 Rostock, Germany.
| | - Oliver Stachs
- Department of Ophthalmology, Rostock University Medical Center, 18057 Rostock, Germany.
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24
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Daizumoto K, Yoshimaru T, Matsushita Y, Fukawa T, Uehara H, Ono M, Komatsu M, Kanayama HO, Katagiri T. A DDX31/Mutant-p53/EGFR Axis Promotes Multistep Progression of Muscle-Invasive Bladder Cancer. Cancer Res 2018; 78:2233-2247. [PMID: 29440146 DOI: 10.1158/0008-5472.can-17-2528] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 12/26/2017] [Accepted: 02/09/2018] [Indexed: 11/16/2022]
Abstract
The p53 and EGFR pathways are frequently altered in bladder cancer, yet their contributions to its progression remain elusive. Here we report that DEAD box polypeptide 31 (DDX31) plays a critical role in the multistep progression of muscle-invasive bladder cancer (MIBC) through its sequential interactions with mutant p53 (mutp53) and EGFR. In early MIBC cells, nuclear DDX31-bound mutp53/SP1 enhanced mutp53 transcriptional activation, leading to migration and invasion of MIBC. Cytoplasmic DDX31 also bound EGFR and phospho-nucleolin in advanced MIBC, leading to EGFR-Akt signaling activation. High expression of both cytoplasmic DDX31 and p53 proteins correlated with poor prognosis in patients with MIBC, and blocking the DDX31/NCL interaction resulted in downregulation of EGFR/Akt signaling, eliciting an in vivo antitumor effect against bladder cancer. These findings reveal that DDX31 cooperates with mutp53 and EGFR to promote progression of MIBC, and inhibition of DDX31/NCL formation may lead to potential treatment strategies for advanced MIBC.Significance: DDX31 cooperates with mutp53 and EGFR to promote progression of muscle invasive bladder cancer. Cancer Res; 78(9); 2233-47. ©2018 AACR.
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Affiliation(s)
- Kei Daizumoto
- Division of Genome Medicine, Institute for Genome Research, Tokushima University, Tokushima, Japan.,Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Tetsuro Yoshimaru
- Division of Genome Medicine, Institute for Genome Research, Tokushima University, Tokushima, Japan
| | - Yosuke Matsushita
- Division of Genome Medicine, Institute for Genome Research, Tokushima University, Tokushima, Japan
| | - Tomoya Fukawa
- Division of Genome Medicine, Institute for Genome Research, Tokushima University, Tokushima, Japan.,Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Hisanori Uehara
- Division of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - Masaya Ono
- Department of Clinical Proteomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Masato Komatsu
- Division of Genome Medicine, Institute for Genome Research, Tokushima University, Tokushima, Japan
| | - Hiro-Omi Kanayama
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Toyomasa Katagiri
- Division of Genome Medicine, Institute for Genome Research, Tokushima University, Tokushima, Japan.
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25
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Degryse B, Britto M, Shan CX, Wallace RG, Rochfort KD, Cummins PM, Meade G, Murphy RP. Data on the regulation of moesin and merlin by the urokinase receptor (uPAR): Model explaining distal activation of integrins by uPAR. Data Brief 2017; 15:600-605. [PMID: 29085875 PMCID: PMC5655590 DOI: 10.1016/j.dib.2017.10.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 10/12/2017] [Accepted: 10/12/2017] [Indexed: 12/13/2022] Open
Abstract
The data presented herein are connected to our research article (doi: 10.1016/j.biocel.2017.04.012) [1], in which we investigated the functional connections between the urokinase receptor (uPAR), and the ezrin/radixin/moesin (ERM) proteins, moesin and merlin [1]. Firstly, a model of action is proposed that enlightens how uPAR regulates distal integrins. In addition, data show the effects of expressing wild-type moesin or permanently active T558D mutant of moesin on angiogenesis and morphology of human aortic endothelial cells (HAEC). Additional data compare the effects of urokinase (uPA, the main ligand of uPAR) on the same cells. Lastly, we provide technical data demonstrating the effects of specific siRNA for moesin and merlin on moesin and merlin expression, respectively.
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26
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Kim H, Lee MR, Jeon TJ. Loss of FrmB results in increased size of developmental structures during the multicellular development of Dictyostelium cells. J Microbiol 2017; 55:730-736. [PMID: 28865076 DOI: 10.1007/s12275-017-7221-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/25/2017] [Accepted: 07/27/2017] [Indexed: 12/11/2022]
Abstract
FERM domain-containing proteins are involved in diverse biological and pathological processes, including cell-substrate adhesion, cell-cell adhesion, multicellular development, and cancer metastasis. In this study, we determined the functions of FrmB, a FERM domain-containing protein, in the cell morphology, cell adhesion, and multicellular development of Dictyostelium cells. Our results show that FrmB appears to play an important role in regulating the size of developmental structures. frmB null cells showed prolonged aggregation during development, resulting in increased size of developmental structures, such as mounds and fruiting bodies, compared to those of wild-type cells, whereas FrmB overexpressing cells exhibited decreased size of developmental structures. These results suggest that FrmB may be necessary for limiting the sizes of developmental structures. Loss of FrmB also resulted in decreased cell-substrate adhesion and slightly increased cell area, suggesting that FrmB had important roles in the regulation of cell adhesion and cell morphology. These studies would contribute to our understanding of the intertwined and overlapped functions of FERM domain-containing proteins.
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Affiliation(s)
- Hyeseon Kim
- Department of Biology & BK21-Plus Research Team for Bioactive Control Technology, College of Natural Sciences, Chosun University, Gwangju, 61452, Republic of Korea
| | - Mi-Rae Lee
- Department of Biology & BK21-Plus Research Team for Bioactive Control Technology, College of Natural Sciences, Chosun University, Gwangju, 61452, Republic of Korea
| | - Taeck Joong Jeon
- Department of Biology & BK21-Plus Research Team for Bioactive Control Technology, College of Natural Sciences, Chosun University, Gwangju, 61452, Republic of Korea.
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27
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Degryse B, Britto M, Shan CX, Wallace RG, Rochfort KD, Cummins PM, Meade G, Murphy RP. Moesin and merlin regulate urokinase receptor-dependent endothelial cell migration, adhesion and angiogenesis. Int J Biochem Cell Biol 2017; 88:14-22. [DOI: 10.1016/j.biocel.2017.04.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 04/02/2017] [Accepted: 04/28/2017] [Indexed: 10/19/2022]
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28
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Kristó I, Bajusz C, Borsos BN, Pankotai T, Dopie J, Jankovics F, Vartiainen MK, Erdélyi M, Vilmos P. The actin binding cytoskeletal protein Moesin is involved in nuclear mRNA export. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:1589-1604. [PMID: 28554770 DOI: 10.1016/j.bbamcr.2017.05.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 05/22/2017] [Accepted: 05/25/2017] [Indexed: 12/29/2022]
Abstract
Current models imply that the evolutionarily conserved, actin-binding Ezrin-Radixin-Moesin (ERM) proteins perform their activities at the plasma membrane by anchoring membrane proteins to the cortical actin network. Here we show that beside its cytoplasmic functions, the single ERM protein of Drosophila, Moesin, has a novel role in the nucleus. The activation of transcription by heat shock or hormonal treatment increases the amount of nuclear Moesin, indicating biological function for the protein in the nucleus. The distribution of Moesin in the nucleus suggests a function in transcription and the depletion of mRNA export factors Nup98 or its interacting partner, Rae1, leads to the nuclear accumulation of Moesin, suggesting that the nuclear function of the protein is linked to mRNA export. Moesin localizes to mRNP particles through the interaction with the mRNA export factor PCID2 and knock down of Moesin leads to the accumulation of mRNA in the nucleus. Based on our results we propose that, beyond its well-known, manifold functions in the cytoplasm, the ERM protein of Drosophila is a new, functional component of the nucleus where it participates in mRNA export.
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Affiliation(s)
- Ildikó Kristó
- Biological Research Center of the Hungarian Academy of Sciences, Szeged, Hungary
| | - Csaba Bajusz
- Biological Research Center of the Hungarian Academy of Sciences, Szeged, Hungary
| | - Barbara N Borsos
- Department of Biochemistry and Molecular Biology, University of Szeged, Szeged, Hungary
| | - Tibor Pankotai
- Department of Biochemistry and Molecular Biology, University of Szeged, Szeged, Hungary
| | - Joseph Dopie
- University of Helsinki, Institute of Biotechnology, Helsinki, Finland
| | - Ferenc Jankovics
- Biological Research Center of the Hungarian Academy of Sciences, Szeged, Hungary
| | | | - Miklós Erdélyi
- Biological Research Center of the Hungarian Academy of Sciences, Szeged, Hungary
| | - Péter Vilmos
- Biological Research Center of the Hungarian Academy of Sciences, Szeged, Hungary.
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29
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The PTPN14 Tumor Suppressor Is a Degradation Target of Human Papillomavirus E7. J Virol 2017; 91:JVI.00057-17. [PMID: 28100625 DOI: 10.1128/jvi.00057-17] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 01/11/2017] [Indexed: 12/13/2022] Open
Abstract
Activation of signaling pathways ensuring cell growth is essential for the proliferative competence of human papillomavirus (HPV)-infected cells. Tyrosine kinases and phosphatases are key regulators of cellular growth control pathways. A recently identified potential cellular target of HPV E7 is the cytoplasmic protein tyrosine phosphatase PTPN14, which is a potential tumor suppressor and is linked to the control of the Hippo and Wnt/beta-catenin signaling pathways. In this study, we show that the E7 proteins of both high-risk and low-risk mucosal HPV types can interact with PTPN14. This interaction is independent of retinoblastoma protein (pRb) and involves residues in the carboxy-terminal region of E7. We also show that high-risk E7 induces proteasome-mediated degradation of PTPN14 in cells derived from cervical tumors. This degradation appears to be independent of cullin-1 or cullin-2 but most likely involves the UBR4/p600 ubiquitin ligase. The degree to which E7 downregulates PTPN14 would suggest that this interaction is important for the viral life cycle and potentially also for the development of malignancy. In support of this we find that overexpression of PTPN14 decreases the ability of HPV-16 E7 to cooperate with activated EJ-ras in primary cell transformation assays.IMPORTANCE This study links HPV E7 to the deregulation of protein tyrosine phosphatase signaling pathways. PTPN14 is classified as a potential tumor suppressor protein, and here we show that it is very susceptible to HPV E7-induced proteasome-mediated degradation. Intriguingly, this appears to use a mechanism that is different from that employed by E7 to target pRb. Therefore, this study has important implications for our understanding of the molecular basis for E7 function and also sheds important light on the potential role of PTPN14 as a tumor suppressor.
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30
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Luo Y, Ye GY, Qin SL, Mu YF, Zhang L, Qi Y, Qiu YE, Yu MH, Zhong M. High expression of Rab3D predicts poor prognosis and associates with tumor progression in colorectal cancer. Int J Biochem Cell Biol 2016; 75:53-62. [DOI: 10.1016/j.biocel.2016.03.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 03/04/2016] [Accepted: 03/28/2016] [Indexed: 12/18/2022]
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31
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Djuric I, Siebrasse JP, Schulze U, Granado D, Schlüter MA, Kubitscheck U, Pavenstädt H, Weide T. The C-terminal domain controls the mobility of Crumbs 3 isoforms. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:1208-17. [DOI: 10.1016/j.bbamcr.2016.03.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 03/07/2016] [Accepted: 03/08/2016] [Indexed: 01/12/2023]
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32
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Zhao LP, Huang L, Tian X, Liang FQ, Wei JC, Zhang X, Li S, Zhang QH. Knockdown of ezrin suppresses the migration and angiogenesis of human umbilical vein endothelial cells in vitro. ACTA ACUST UNITED AC 2016; 36:243-248. [PMID: 27072970 DOI: 10.1007/s11596-016-1574-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 12/13/2015] [Indexed: 11/28/2022]
Abstract
Progressive tumor growth is dependent on angiogenesis. The mechanisms by which endothelial cells (ECs) are incorporated to develop new blood vessels are not well understood. Recent studies reveal that the ezrin radixin moesin (ERM) family members are key regulators of cellular activities such as adhesion, morphogenetic change, and migration. We hypothesized that ezrin, one of the ERM family members, may play important roles in ECs organization during angiogenesis, and new vessels formation in preexisting tissues. To test this hypothesis, in this study, we investigated the effects of ezrin gene silencing on the migration and angiogenesis of human umbilical vein endothelial cells (HUVECs) in vitro. HUVECs were transfected with plasmids with ezrin-targeting short hairpin RNA by using the lipofectamine-2000 system. Wound assay in vitro and three-dimensional culture were used to detect the migration and angiogenesis capacity of HUVECs. The morphological changes of transfected cells were observed by confocal and phase contrast microscopy. Our results demonstrated that the decreased expression of ezrin in HUVECs significantly induced the morphogenetic changes and cytoskeletal reorganization of the transfected cells, and also reduced cell migration and angiogenesis capacity in vitro, suggesting that ezrin play an important role in the process of HUVECs migration and angiogenesis.
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Affiliation(s)
- Liang-Ping Zhao
- Department of Gynecology & Obstetrics, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Lei Huang
- Department of Gynecology & Obstetrics, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Xun Tian
- Department of Gynecology & Obstetrics, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Feng-Qi Liang
- Department of Gynecology & Obstetrics, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Jun-Cheng Wei
- Department of Gynecology & Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xian Zhang
- Department of Gynecology & Obstetrics, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Sha Li
- Department of Gynecology & Obstetrics, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Qing-Hua Zhang
- Department of Gynecology & Obstetrics, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China.
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Genome-Wide Association Study of Staphylococcus aureus Carriage in a Community-Based Sample of Mexican-Americans in Starr County, Texas. PLoS One 2015; 10:e0142130. [PMID: 26569114 PMCID: PMC4646511 DOI: 10.1371/journal.pone.0142130] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 10/16/2015] [Indexed: 02/07/2023] Open
Abstract
Staphylococcus aureus is the number one cause of hospital-acquired infections. Understanding host pathogen interactions is paramount to the development of more effective treatment and prevention strategies. Therefore, whole exome sequence and chip-based genotype data were used to conduct rare variant and genome-wide association analyses in a Mexican-American cohort from Starr County, Texas to identify genes and variants associated with S. aureus nasal carriage. Unlike most studies of S. aureus that are based on hospitalized populations, this study used a representative community sample. Two nasal swabs were collected from participants (n = 858) 11–17 days apart between October 2009 and December 2013, screened for the presence of S. aureus, and then classified as either persistent, intermittent, or non-carriers. The chip-based and exome sequence-based single variant association analyses identified 1 genome-wide significant region (KAT2B) for intermittent and 11 regions suggestively associated with persistent or intermittent S. aureus carriage. We also report top findings from gene-based burden analyses of rare functional variation. Notably, we observed marked differences between signals associated with persistent and intermittent carriage. In single variant analyses of persistent carriage, 7 of 9 genes in suggestively associated regions and all 5 top gene-based findings are associated with cell growth or tight junction integrity or are structural constituents of the cytoskeleton, suggesting that variation in genes associated with persistent carriage impact cellular integrity and morphology.
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Hu J, Niu M, Li X, Lu D, Cui J, Xu W, Li G, Zhan J, Zhang H. FERM domain-containing protein FRMD5 regulates cell motility via binding to integrin β5 subunit and ROCK1. FEBS Lett 2014; 588:4348-56. [PMID: 25448675 DOI: 10.1016/j.febslet.2014.10.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/17/2014] [Accepted: 10/08/2014] [Indexed: 10/24/2022]
Abstract
FRMD5 is a novel FERM domain-containing protein depicted in tumor progression. However, the mechanisms underlying FRMD5 inhibition of cell migration is largely unknown. Here, we show that FRMD5 regulates cell migration by interacting with integrin β5 cytoplasmic tail and ROCK1 in human lung cancer cells. FRMD5 promotes cell-matrix adhesion and cell spreading on vitronectin, and thus inhibits cell migration. Furthermore, FRMD5 interacts with ROCK1 and inhibits its activation that leads to the inhibition of myosin light chain phosphorylation and the actin stress fiber formation. Taken together, these findings demonstrate that the putative tumor suppressive protein FRMD5 regulates tumor cell motility via a dual pathway involving FRMD5 binding to integrin β5 tail and to ROCK1.
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Affiliation(s)
- Jinxia Hu
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Peking University Health Science Center, Beijing 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China; Department of Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing 100191, China; Department of Biochemistry and Molecular Biology, Binzhou Medical University, Yantai 264000, Shandong, China
| | - Miaomiao Niu
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Peking University Health Science Center, Beijing 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China
| | - Xueying Li
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Peking University Health Science Center, Beijing 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China
| | - Danyu Lu
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Peking University Health Science Center, Beijing 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China
| | - Jia Cui
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Peking University Health Science Center, Beijing 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China
| | - Weizhi Xu
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Peking University Health Science Center, Beijing 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China
| | - Gang Li
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing 100191, China
| | - Jun Zhan
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Peking University Health Science Center, Beijing 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China
| | - Hongquan Zhang
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Peking University Health Science Center, Beijing 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China.
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