1
|
Pirayeshfard L, Luo S, Githaka JM, Saini A, Touret N, Goping IS, Julien O. Comparing the BAD Protein Interactomes in 2D and 3D Cell Culture Using Proximity Labeling. J Proteome Res 2024. [PMID: 38959414 DOI: 10.1021/acs.jproteome.4c00111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Protein-protein interaction studies using proximity labeling techniques, such as biotin ligase-based BioID, have become integral in understanding cellular processes. Most studies utilize conventional 2D cell culture systems, potentially missing important differences in protein behavior found in 3D tissues. In this study, we investigated the protein-protein interactions of a protein, Bcl-2 Agonist of cell death (BAD), and compared conventional 2D culture conditions to a 3D system, wherein cells were embedded within a 3D extracellular matrix (ECM) mimic. Using BAD fused to the engineered biotin ligase miniTurbo (BirA*), we identified both overlapping and distinct BAD interactomes under 2D and 3D conditions. The known BAD binding proteins 14-3-3 isoforms and Bcl-XL interacted with BAD in both 2D and 3D. Of the 131 BAD-interactors identified, 56% were specific to 2D, 14% were specific to 3D, and 30% were common to both conditions. Interaction network analysis demonstrated differential associations between 2D and 3D interactomes, emphasizing the impact of the culture conditions on protein interactions. The 2D-3D overlap interactome encapsulated the apoptotic program, which is a well-known role of BAD. The 3D unique pathways were enriched in ECM signaling, suggestive of hitherto unknown functions for BAD. Thus, exploring protein-protein interactions in 3D provides novel clues into cell behavior. This exciting approach has the potential to bridge the knowledge gap between tractable 2D cell culture and organoid-like 3D systems.
Collapse
Affiliation(s)
- Leila Pirayeshfard
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Shu Luo
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | | | - Arashdeep Saini
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Nicolas Touret
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Ing Swie Goping
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
- Department of Oncology, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Olivier Julien
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| |
Collapse
|
2
|
Rodrigues A, MacQuarrie KL, Freeman E, Lin A, Willis AB, Xu Z, Alvarez AA, Ma Y, White BEP, Foltz DR, Huang S. Nucleoli and the nucleoli-centromere association are dynamic during normal development and in cancer. Mol Biol Cell 2023; 34:br5. [PMID: 36753381 PMCID: PMC10092642 DOI: 10.1091/mbc.e22-06-0237] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 01/19/2023] [Accepted: 01/30/2023] [Indexed: 02/09/2023] Open
Abstract
Centromeres are known to cluster around nucleoli in Drosophila and mammalian cells, but the significance of the nucleoli-centromere interaction remains underexplored. To determine whether the interaction is dynamic under different physiological and pathological conditions, we examined nucleolar structure and centromeres at various differentiation stages using cell culture models and the results showed dynamic changes in nucleolar characteristics and nucleoli-centromere interactions through differentiation and in cancer cells. Embryonic stem cells usually have a single large nucleolus, which is clustered with a high percentage of centromeres. As cells differentiate into intermediate states, the nucleolar number increases and the centromere association decreases. In terminally differentiated cells, including myotubes, neurons, and keratinocytes, the number of nucleoli and their association with centromeres are at the lowest. Cancer cells demonstrate the pattern of nucleoli number and nucleoli-centromere association that is akin to proliferative cell types, suggesting that nucleolar reorganization and changes in nucleoli-centromere interactions may play a role in facilitating malignant transformation. This idea is supported in a case of pediatric rhabdomyosarcoma, in which induced differentiation reduces the nucleolar number and centromere association. These findings suggest active roles of nucleolar structure in centromere function and genome organization critical for cellular function in both normal development and cancer.
Collapse
Affiliation(s)
- Aaron Rodrigues
- Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Kyle L. MacQuarrie
- Division of Hematology, Oncology, and Stem Cell Transplantation, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Emma Freeman
- Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Alicia Lin
- Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Alexander B. Willis
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Zhaofa Xu
- Departments of Pediatrics, Neurology and Neuroscience, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611
| | - Angel A. Alvarez
- Stem Cell Core and Ken & Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Yongchao Ma
- Departments of Pediatrics, Neurology and Neuroscience, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611
| | - Bethany E. Perez White
- Department of Dermatology and Skin Biology and Diseases Resource-based Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Daniel R. Foltz
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| | - Sui Huang
- Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611
| |
Collapse
|
3
|
Zhang N, Wang S, Wong CC. Proteomics research of SARS-CoV-2 and COVID-19 disease. MEDICAL REVIEW (BERLIN, GERMANY) 2022; 2:427-445. [PMID: 37724330 PMCID: PMC10388787 DOI: 10.1515/mr-2022-0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 07/06/2022] [Indexed: 09/20/2023]
Abstract
Currently, coronavirus disease 2019 (COVID-19) is still spreading in a global scale, exerting a massive health and socioeconomic crisis. Deep insights into the molecular functions of the viral proteins and the pathogenesis of this infectious disease are urgently needed. In this review, we comprehensively describe the proteome of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and summarize their protein interaction map with host cells. In the protein interaction network between the virus and the host, a total of 787 host prey proteins that appeared in at least two studies or were verified by co-immunoprecipitation experiments. Together with 29 viral proteins, a network of 1762 proximal interactions were observed. We also review the proteomics results of COVID-19 patients and proved that SARS-CoV-2 hijacked the host's translation system, post-translation modification system, and energy supply system via viral proteins, resulting in various immune disorders, multiple cardiomyopathies, and cholesterol metabolism diseases.
Collapse
Affiliation(s)
- Nan Zhang
- Department of Medical Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, P. R. China
- Department of Radiation Oncology, College of Medicine, The Ohio State University, Columbus, OH, USA
- Center for Cancer Metabolism, Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Siyuan Wang
- Department of Medical Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, P. R. China
| | - Catherine C.L. Wong
- Department of Medical Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, P. R. China
- Tsinghua University-Peking University Joint Center for Life Sciences, Tsinghua University, Beijing, P. R. China
| |
Collapse
|
4
|
Baskaran Y, Tay FPL, Ng EYW, Swa CLF, Wee S, Gunaratne J, Manser E. Proximity proteomics identifies PAK4 as a component of Afadin-Nectin junctions. Nat Commun 2021; 12:5315. [PMID: 34493720 PMCID: PMC8423818 DOI: 10.1038/s41467-021-25011-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 07/08/2021] [Indexed: 02/07/2023] Open
Abstract
Human PAK4 is an ubiquitously expressed p21-activated kinase which acts downstream of Cdc42. Since PAK4 is enriched in cell-cell junctions, we probed the local protein environment around the kinase with a view to understanding its location and substrates. We report that U2OS cells expressing PAK4-BirA-GFP identify a subset of 27 PAK4-proximal proteins that are primarily cell-cell junction components. Afadin/AF6 showed the highest relative biotin labelling and links to the nectin family of homophilic junctional proteins. Reciprocally >50% of the PAK4-proximal proteins were identified by Afadin BioID. Co-precipitation experiments failed to identify junctional proteins, emphasizing the advantage of the BioID method. Mechanistically PAK4 depended on Afadin for its junctional localization, which is similar to the situation in Drosophila. A highly ranked PAK4-proximal protein LZTS2 was immuno-localized with Afadin at cell-cell junctions. Though PAK4 and Cdc42 are junctional, BioID analysis did not yield conventional cadherins, indicating their spatial segregation. To identify cellular PAK4 substrates we then assessed rapid changes (12') in phospho-proteome after treatment with two PAK inhibitors. Among the PAK4-proximal junctional proteins seventeen PAK4 sites were identified. We anticipate mammalian group II PAKs are selective for the Afadin/nectin sub-compartment, with a demonstrably distinct localization from tight and cadherin junctions.
Collapse
Affiliation(s)
- Yohendran Baskaran
- sGSK Group, Institute of Molecular & Cell Biology, A*STAR, Singapore, Singapore
| | - Felicia Pei-Ling Tay
- FB Laboratory, Institute of Molecular & Cell Biology, A*STAR, Singapore, Singapore
| | - Elsa Yuen Wai Ng
- sGSK Group, Institute of Molecular & Cell Biology, A*STAR, Singapore, Singapore
| | - Claire Lee Foon Swa
- Quantitative Proteomics Group, Institute of Molecular & Cell Biology, Singapore, Singapore
| | - Sheena Wee
- Quantitative Proteomics Group, Institute of Molecular & Cell Biology, Singapore, Singapore
| | - Jayantha Gunaratne
- Quantitative Proteomics Group, Institute of Molecular & Cell Biology, Singapore, Singapore
| | - Edward Manser
- sGSK Group, Institute of Molecular & Cell Biology, A*STAR, Singapore, Singapore.
- Department of Pharmacology, National University of Singapore, Singapore, Singapore.
| |
Collapse
|
5
|
Polarity scaffolds signaling in epithelial cell permeability. Inflamm Res 2021; 70:525-538. [PMID: 33721031 DOI: 10.1007/s00011-021-01454-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 01/20/2021] [Accepted: 03/06/2021] [Indexed: 01/14/2023] Open
Abstract
As an integral part of the innate immune system, the epithelial membrane is exposed to an array of insults that may trigger an immune response. One of the immune system's main functions is to regulate the level of communications between the mucosa and the lumen of various tissues. While it is clear that inhaled or ingested substances, or microorganisms may induce changes that affect the epithelial barrier in various ways, the proteins involved in the signaling cascades and physiological events leading to the regulation and maintenance of the barrier are not always well characterized. We review here some of the signaling components involved in regulating the barrier's paracellular permeability, and their potential effects on the activation of an immune response. While an effective immune response must be launched against pathogenic insults, tolerance must also be maintained for non-pathogenic antigens such as those in the commensal flora or for endogenous metabolites. Along with other members of the innate and adaptive immunity, the endocannabinoid system also plays an instrumental role in maintaining the balance between inflammation and tolerance. We discuss the potential effects of endo- and phytocannabinoids on epithelial permeability and how the dysregulation of this system could be involved in diseases and targeted for therapy.
Collapse
|
6
|
Huxham J, Tabariès S, Siegel PM. Afadin (AF6) in cancer progression: A multidomain scaffold protein with complex and contradictory roles. Bioessays 2020; 43:e2000221. [PMID: 33165933 DOI: 10.1002/bies.202000221] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/17/2020] [Accepted: 09/24/2020] [Indexed: 11/09/2022]
Abstract
Adherens (AJ) and tight junctions (TJ) maintain cell-cell adhesions and cellular polarity in normal tissues. Afadin, a multi-domain scaffold protein, is commonly found in both adherens and tight junctions, where it plays both structural and signal-modulating roles. Afadin is a complex modulator of cellular processes implicated in cancer progression, including signal transduction, migration, invasion, and apoptosis. In keeping with the complexities associated with the roles of adherens and tight junctions in cancer, afadin exhibits both tumor suppressive and pro-metastatic functions. In this review, we will explore the dichotomous roles that afadin plays during cancer progression.
Collapse
Affiliation(s)
- Jennifer Huxham
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada.,Department of Medicine, McGill University, Montréal, Québec, Canada
| | - Sébastien Tabariès
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada.,Department of Medicine, McGill University, Montréal, Québec, Canada
| | - Peter M Siegel
- Goodman Cancer Research Centre, McGill University, Montréal, Québec, Canada.,Department of Medicine, McGill University, Montréal, Québec, Canada.,Department of Biochemistry, McGill University, Montréal, Québec, Canada.,Department of Anatomy & Cell Biology, McGill University, Montréal, Québec, Canada.,Department of Oncology, McGill University, Montréal, Québec, Canada
| |
Collapse
|
7
|
Lavker RM, Kaplan N, Wang J, Peng H. Corneal epithelial biology: Lessons stemming from old to new. Exp Eye Res 2020; 198:108094. [PMID: 32697979 DOI: 10.1016/j.exer.2020.108094] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/27/2020] [Accepted: 05/29/2020] [Indexed: 12/13/2022]
Abstract
The anterior surface of the eye functions as a barrier to the external environment and protects the delicate underlying tissues from injury. Central to this protection are the corneal, limbal and conjunctival epithelia. The corneal epithelium is a self-renewing stratified squamous epithelium that protects the underlying delicate structures of the eye, supports a tear film and maintains transparency so that light can be transmitted to the interior of the eye (Basu et al., 2014; Cotsarelis et al., 1989; Funderburgh et al., 2016; Lehrer et al., 1998; Pajoohesh-Ganji and Stepp, 2005; Parfitt et al., 2015; Peng et al., 2012b; Stepp and Zieske, 2005). In this review, dedicated to James Funderburgh and his contributions to visual science, in particular the limbal niche, corneal stroma and corneal stromal stem cells, we will focus on recent data on the identification of novel regulators in corneal epithelial cell biology, their roles in stem cell homeostasis, wound healing, limbal/corneal boundary maintenance and the utility of single cell RNA sequencing (scRNA-seq) in vision biology studies.
Collapse
Affiliation(s)
- Robert M Lavker
- Departments of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
| | - Nihal Kaplan
- Departments of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Junyi Wang
- Departments of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA; Department of Ophthalmology, The First Center of the PLA General Hospital, Haidian District, Beijing, China
| | - Han Peng
- Departments of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| |
Collapse
|
8
|
Cable CJ, Kaplan N, Getsios S, Thomas PM, Perez White BE. Biotin Identification Proteomics in Three-Dimensional Organotypic Human Skin Cultures. Methods Mol Biol 2020; 2109:185-197. [PMID: 31123999 PMCID: PMC6874900 DOI: 10.1007/7651_2019_239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Biotin identification (BioID) proteomics facilitates the unbiased detection of protein interaction neighborhoods in live cells. The BioID technique relies on the covalent biotin alteration of vicinal proteins by a modified bacterial biotin ligase. The biotin ligase is fused to a protein of interest to identify putative protein-protein interactions. Here, we describe the adaptation of this technique for use in three-dimensional epidermal cultures. Due to the covalent biotin modification of proteins, our protocol allows for the complete solubilization of the total cellular protein content in differentiated keratinocytes. Thus, a comprehensive network of potential interactors of a protein of interest can be mapped.
Collapse
Affiliation(s)
- Calvin J Cable
- Department of Dermatology, Northwestern University, Chicago, IL, USA
| | - Nihal Kaplan
- Department of Dermatology, Northwestern University, Chicago, IL, USA
| | - Spiro Getsios
- Department of Dermatology, Northwestern University, Chicago, IL, USA
| | - Paul M Thomas
- Department of Molecular Biosciences, Northwestern University, Chicago, IL, USA
- Northwestern Proteomics, Northwestern University, Chicago, IL, USA
| | - Bethany E Perez White
- Department of Dermatology, Northwestern University, Chicago, IL, USA.
- Skin Disease Research Center, Northwestern University, Chicago, IL, USA.
| |
Collapse
|
9
|
Darling TK, Mimche PN, Bray C, Umaru B, Brady LM, Stone C, Eboumbou Moukoko CE, Lane TE, Ayong LS, Lamb TJ. EphA2 contributes to disruption of the blood-brain barrier in cerebral malaria. PLoS Pathog 2020; 16:e1008261. [PMID: 31999807 PMCID: PMC6991964 DOI: 10.1371/journal.ppat.1008261] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 12/07/2019] [Indexed: 01/01/2023] Open
Abstract
Disruption of blood-brain barrier (BBB) function is a key feature of cerebral malaria. Increased barrier permeability occurs due to disassembly of tight and adherens junctions between endothelial cells, yet the mechanisms governing junction disassembly and vascular permeability during cerebral malaria remain poorly characterized. We found that EphA2 is a principal receptor tyrosine kinase mediating BBB breakdown during Plasmodium infection. Upregulated on brain microvascular endothelial cells in response to inflammatory cytokines, EphA2 is required for the loss of junction proteins on mouse and human brain microvascular endothelial cells. Furthermore, EphA2 is necessary for CD8+ T cell brain infiltration and subsequent BBB breakdown in a mouse model of cerebral malaria. Blocking EphA2 protects against BBB breakdown highlighting EphA2 as a potential therapeutic target for cerebral malaria.
Collapse
Affiliation(s)
- Thayer K. Darling
- Department of Pathology, University of Utah, Salt Lake City, UT, United States of America
- Department of Pediatric Infectious Diseases, Emory University School of Medicine, Atlanta, GA, United States of America
| | - Patrice N. Mimche
- Department of Pathology, University of Utah, Salt Lake City, UT, United States of America
| | - Christian Bray
- Department of Pediatric Infectious Diseases, Emory University School of Medicine, Atlanta, GA, United States of America
| | - Banlanjo Umaru
- Malaria Research Unit, Centre Pasteur du Cameroun, Yaoundé, Cameroon
| | - Lauren M. Brady
- Department of Pediatric Infectious Diseases, Emory University School of Medicine, Atlanta, GA, United States of America
| | - Colleen Stone
- Department of Pathology, University of Utah, Salt Lake City, UT, United States of America
| | - Carole Else Eboumbou Moukoko
- Malaria Research Unit, Centre Pasteur du Cameroun, Yaoundé, Cameroon
- Department of Biological Sciences, University of Douala, Douala, Cameroon
| | - Thomas E. Lane
- Department of Pathology, University of Utah, Salt Lake City, UT, United States of America
| | - Lawrence S. Ayong
- Malaria Research Unit, Centre Pasteur du Cameroun, Yaoundé, Cameroon
| | - Tracey J. Lamb
- Department of Pathology, University of Utah, Salt Lake City, UT, United States of America
| |
Collapse
|
10
|
Kaplan N, Dong Y, Wang S, Yang W, Park JK, Wang J, Fiolek E, Perez White B, Chandel NS, Peng H, Lavker RM. FIH-1 engages novel binding partners to positively influence epithelial proliferation via p63. FASEB J 2019; 34:525-539. [PMID: 31914679 DOI: 10.1096/fj.201901512r] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 10/07/2019] [Accepted: 10/15/2019] [Indexed: 12/19/2022]
Abstract
Whereas much is known about the genes regulated by ΔNp63α in keratinocytes, how ΔNp63α is regulated is less clear. During studies with the hydroxylase, factor inhibiting hypoxia-inducible factor 1 (FIH-1), we observed increases in epidermal ΔNp63α expression along with proliferative capacity in a conditional FIH-1 transgenic mouse. Conversely, loss of FIH-1 in vivo and in vitro attenuated ΔNp63α expression. To elucidate the FIH-1/p63 relationship, BioID proteomics assays identified FIH-1 binding partners that had the potential to regulate p63 expression. FIH-1 interacts with two previously unknown partners, Plectin1 and signal transducer and activator of transcription 1 (STAT1) leading to the regulation of ΔNp63α expression. Two known interactors of FIH-1, apoptosis-stimulating of P53 protein 2 (ASPP2) and histone deacetylase 1 (HDAC1), were also identified. Knockdown of ASPP2 upregulated ΔNp63α and reversed the decrease in ΔNp63α by FIH-1 depletion. Additionally, FIH-1 regulates growth arrest and DNA damage-45 alpha (GADD45α), a negative regulator of ΔNp63α by interacting with HDAC1. GADD45α knockdown rescued reduction in ΔNp63α by FIH-1 depletion. Collectively, our data reveal that FIH-1 positively regulates ΔNp63α in keratinocytes via variety of signaling partners: (a) Plectin1/STAT1, (b) ASPP2, and (c) HDAC1/GADD45α signaling pathways.
Collapse
Affiliation(s)
- Nihal Kaplan
- Department of Dermatology, Northwestern University, Chicago, IL, USA
| | - Ying Dong
- Department of Dermatology, Northwestern University, Chicago, IL, USA.,Department of Ophthalmology, The First Affiliated Hospital, Chinese PLA General Hospital, Beijing, China
| | - Sijia Wang
- Department of Dermatology, Northwestern University, Chicago, IL, USA.,Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wending Yang
- Department of Dermatology, Northwestern University, Chicago, IL, USA
| | - Jong Kook Park
- Department of Dermatology, Northwestern University, Chicago, IL, USA.,Department of Biomedical Science, College of Natural Sciences #8403, Hallym University, Chuncheon, Republic of Korea
| | - Junyi Wang
- Department of Dermatology, Northwestern University, Chicago, IL, USA.,Department of Ophthalmology, The First Affiliated Hospital, Chinese PLA General Hospital, Beijing, China
| | - Elaina Fiolek
- Department of Dermatology, Northwestern University, Chicago, IL, USA
| | | | | | - Han Peng
- Department of Dermatology, Northwestern University, Chicago, IL, USA
| | - Robert M Lavker
- Department of Dermatology, Northwestern University, Chicago, IL, USA
| |
Collapse
|
11
|
The endosomal sorting adaptor HD-PTP is required for ephrin-B:EphB signalling in cellular collapse and spinal motor axon guidance. Sci Rep 2019; 9:11945. [PMID: 31420572 PMCID: PMC6697728 DOI: 10.1038/s41598-019-48421-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 08/02/2019] [Indexed: 12/25/2022] Open
Abstract
The signalling output of many transmembrane receptors that mediate cell-cell communication is restricted by the endosomal sorting complex required for transport (ESCRT), but the impact of this machinery on Eph tyrosine kinase receptor function is unknown. We identified the ESCRT-associated adaptor protein HD-PTP as part of an EphB2 proximity-dependent biotin identification (BioID) interactome, and confirmed this association using co-immunoprecipitation. HD-PTP loss attenuates the ephrin-B2:EphB2 signalling-induced collapse of cultured cells and axonal growth cones, and results in aberrant guidance of chick spinal motor neuron axons in vivo. HD-PTP depletion abrogates ephrin-B2-induced EphB2 clustering, and EphB2 and Src family kinase activation. HD-PTP loss also accelerates ligand-induced EphB2 degradation, contrasting the effects of HD-PTP loss on the relay of signals from other cell surface receptors. Our results link Eph function to the ESCRT machinery and demonstrate a role for HD-PTP in the earliest steps of ephrin-B:EphB signalling, as well as in obstructing premature receptor depletion.
Collapse
|
12
|
Kaplan N, Ventrella R, Peng H, Pal-Ghosh S, Arvanitis C, Rappoport JZ, Mitchell BJ, Stepp MA, Lavker RM, Getsios S. EphA2/Ephrin-A1 Mediate Corneal Epithelial Cell Compartmentalization via ADAM10 Regulation of EGFR Signaling. Invest Ophthalmol Vis Sci 2018; 59:393-406. [PMID: 29351356 PMCID: PMC5774870 DOI: 10.1167/iovs.17-22941] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Purpose Progenitor cells of the limbal epithelium reside in a discrete area peripheral to the more differentiated corneal epithelium and maintain tissue homeostasis. What regulates the limbal-corneal epithelial boundary is a major unanswered question. Ephrin-A1 ligand is enriched in the limbal epithelium, whereas EphA2 receptor is concentrated in the corneal epithelium. This reciprocal pattern led us to assess the role of ephrin-A1 and EphA2 in limbal-corneal epithelial boundary organization. Methods EphA2-expressing corneal epithelial cells engineered to express ephrin-A1 were used to study boundary formation in vitro in a manner that mimicked the relative abundance of these juxtamembrane signaling proteins in the limbal and corneal epithelium in vivo. Interaction of these two distinct cell populations following initial seeding into discrete culture compartments was assessed by live cell imaging. Immunofluoresence and immunoblotting was used to evaluate the contribution of downstream growth factor signaling and cell-cell adhesion systems to boundary formation at sites of heterotypic contact between ephrin-A1 and EphA2 expressing cells. Results Ephrin-A1-expressing cells impeded and reversed the migration of EphA2-expressing corneal epithelial cells upon heterotypic contact formation leading to coordinated migration of the two cell populations in the direction of an ephrin-A1-expressing leading front. Genetic silencing and pharmacologic inhibitor studies demonstrated that the ability of ephrin-A1 to direct migration of EphA2-expressing cells depended on an a disintegrin and metalloproteinase domain-containing protein 10 (ADAM10) and epidermal growth factor receptor (EGFR) signaling pathway that limited E-cadherin-mediated adhesion at heterotypic boundaries. Conclusions Ephrin-A1/EphA2 signaling complexes play a key role in limbal-corneal epithelial compartmentalization and the response of these tissues to injury.
Collapse
Affiliation(s)
- Nihal Kaplan
- Department of Dermatology, Northwestern University, Chicago, Illinois, United States
| | - Rosa Ventrella
- Department of Dermatology, Northwestern University, Chicago, Illinois, United States
| | - Han Peng
- Department of Dermatology, Northwestern University, Chicago, Illinois, United States
| | - Sonali Pal-Ghosh
- Department of Anatomy and Regenerative Biology, The George Washington University Medical Center, Washington, District of Columbia, United States
| | - Constadina Arvanitis
- Department of Cell and Molecular Biology, Northwestern University, Chicago, Illinois, United States
| | - Joshua Z Rappoport
- Department of Cell and Molecular Biology, Northwestern University, Chicago, Illinois, United States
| | - Brian J Mitchell
- Department of Cell and Molecular Biology, Northwestern University, Chicago, Illinois, United States
| | - Mary Ann Stepp
- Department of Anatomy and Regenerative Biology, The George Washington University Medical Center, Washington, District of Columbia, United States
| | - Robert M Lavker
- Department of Dermatology, Northwestern University, Chicago, Illinois, United States
| | - Spiro Getsios
- Department of Dermatology, Northwestern University, Chicago, Illinois, United States
| |
Collapse
|
13
|
Ventrella R, Kaplan N, Hoover P, Perez White BE, Lavker RM, Getsios S. EphA2 Transmembrane Domain Is Uniquely Required for Keratinocyte Migration by Regulating Ephrin-A1 Levels. J Invest Dermatol 2018; 138:2133-2143. [PMID: 29705292 DOI: 10.1016/j.jid.2018.04.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 04/11/2018] [Accepted: 04/12/2018] [Indexed: 12/19/2022]
Abstract
EphA2 receptor tyrosine kinase is activated by ephrin-A1 ligand, which harbors a glycosylphosphatidylinositol anchor that enhances lipid raft localization. Although EphA2 and ephrin-A1 modulate keratinocyte migration and differentiation, the ability of this cell-cell communication complex to localize to different membrane regions in keratinocytes remains unknown. Using a combination of biochemical and imaging approaches, we provide evidence that ephrin-A1 and a ligand-activated form of EphA2 partition outside of lipid raft domains in response to calcium-mediated cell-cell contact stabilization in normal human epidermal keratinocytes. EphA2 transmembrane domain swapping with a shorter and molecularly distinct transmembrane domain of EphA1 resulted in decreased localization of this receptor tyrosine kinase at cell-cell junctions and increased expression of ephrin-A1, which is a negative regulator of keratinocyte migration. Accordingly, altered EphA2 membrane distribution at cell-cell contacts limited the ability of keratinocytes to seal linear scratch wounds in vitro in an ephrin-A1-dependent manner. Collectively, these studies highlight a key role for the EphA2 transmembrane domain in receptor-ligand membrane distribution at cell-cell contacts that modulates ephrin-A1 levels to allow for efficient keratinocyte migration with relevance for cutaneous wound healing.
Collapse
Affiliation(s)
- Rosa Ventrella
- Department of Dermatology, 303 East Chicago Avenue, Ward 9, Northwestern University, Chicago, Illinois, USA
| | - Nihal Kaplan
- Department of Dermatology, 303 East Chicago Avenue, Ward 9, Northwestern University, Chicago, Illinois, USA
| | - Paul Hoover
- Department of Dermatology, 303 East Chicago Avenue, Ward 9, Northwestern University, Chicago, Illinois, USA
| | - Bethany E Perez White
- Department of Dermatology, 303 East Chicago Avenue, Ward 9, Northwestern University, Chicago, Illinois, USA
| | - Robert M Lavker
- Department of Dermatology, 303 East Chicago Avenue, Ward 9, Northwestern University, Chicago, Illinois, USA
| | - Spiro Getsios
- Department of Dermatology, 303 East Chicago Avenue, Ward 9, Northwestern University, Chicago, Illinois, USA.
| |
Collapse
|
14
|
Che Y, Khavari PA. Research Techniques Made Simple: Emerging Methods to Elucidate Protein Interactions through Spatial Proximity. J Invest Dermatol 2017; 137:e197-e203. [PMID: 29169465 DOI: 10.1016/j.jid.2017.09.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 09/18/2017] [Accepted: 09/26/2017] [Indexed: 01/12/2023]
Abstract
Interactions between proteins are essential for fundamental cellular processes, and the diversity of such interactions enables the vast variety of functions essential for life. A persistent goal in biological research is to develop assays that can faithfully capture different types of protein interactions to allow their study. A major step forward in this direction came with a family of methods that delineates spatial proximity of proteins as an indirect measure of protein-protein interaction. A variety of enzyme- and DNA ligation-based methods measure protein co-localization in space, capturing novel interactions that were previously too transient or low affinity to be identified. Here we review some of the methods that have been successfully used to measure spatially proximal protein-protein interactions.
Collapse
Affiliation(s)
- Yonglu Che
- Program in Epithelial Biology, Stanford University, Stanford, California, USA
| | - Paul A Khavari
- Program in Epithelial Biology, Stanford University, Stanford, California, USA; Dermatology Service, VA Palo Alto Health Care System, Palo Alto, California, USA.
| |
Collapse
|
15
|
Liu AP, Botelho RJ, Antonescu CN. The big and intricate dreams of little organelles: Embracing complexity in the study of membrane traffic. Traffic 2017; 18:567-579. [DOI: 10.1111/tra.12497] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 05/30/2017] [Accepted: 05/30/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Allen P. Liu
- Department of Mechanical Engineering University of Michigan Ann Arbor Michigan
- Department of Biomedical Engineering University of Michigan Ann Arbor Michigan
- Cellular and Molecular Biology Program University of Michigan Ann Arbor Michigan
- Biophysics Program University of Michigan Ann Arbor Michigan
| | - Roberto J. Botelho
- The Graduate Program in Molecular Science and Department of Chemistry and Biology Ryerson University Toronto Canada
| | - Costin N. Antonescu
- The Graduate Program in Molecular Science and Department of Chemistry and Biology Ryerson University Toronto Canada
- Keenan Research Centre for Biomedical Science St. Michael's Hospital Toronto Canada
| |
Collapse
|
16
|
Crawford M, Dagnino L. Scaffolding proteins in the development and maintenance of the epidermal permeability barrier. Tissue Barriers 2017; 5:e1341969. [PMID: 28665776 DOI: 10.1080/21688370.2017.1341969] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The skin of mammals and other terrestrial vertebrates protects the organism against the external environment, preventing heat, water and electrolyte loss, as well as entry of chemicals and pathogens. Impairments in the epidermal permeability barrier function are associated with the genesis and/or progression of a variety of pathological conditions, including genetic inflammatory diseases, microbial and viral infections, and photodamage induced by UV radiation. In mammals, the outside-in epidermal permeability barrier is provided by the joint action of the outermost cornified layer, together with assembled tight junctions in granular keratinocytes found in the layers underneath. Tight junctions serve as both outside-in and inside-out barriers, and impede paracellular movements of ions, water, macromolecules and microorganisms. At the molecular level, tight junctions consist of integral membrane proteins that form an extracellular seal between adjacent cells, and associate with cytoplasmic scaffold proteins that serve as links with the actin cytoskeleton. In this review, we address the roles that scaffold proteins play specifically in the establishment and maintenance of the epidermal permeability barrier, and how various pathologies alter or impair their functions.
Collapse
Affiliation(s)
- Melissa Crawford
- a Department of Physiology and Pharmacology , Children's Health Research Institute and Lawson Health Research Institute, The University of Western Ontario , London , Ontario , Canada
| | - Lina Dagnino
- a Department of Physiology and Pharmacology , Children's Health Research Institute and Lawson Health Research Institute, The University of Western Ontario , London , Ontario , Canada
| |
Collapse
|