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Vieira MFM, Hernandez G, Zhong Q, Arbesú M, Veloso T, Gomes T, Martins ML, Monteiro H, Frazão C, Frankel G, Zanzoni A, Cordeiro TN. The pathogen-encoded signalling receptor Tir exploits host-like intrinsic disorder for infection. Commun Biol 2024; 7:179. [PMID: 38351154 PMCID: PMC10864410 DOI: 10.1038/s42003-024-05856-9] [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: 11/23/2022] [Accepted: 01/26/2024] [Indexed: 02/16/2024] Open
Abstract
The translocated intimin receptor (Tir) is an essential type III secretion system (T3SS) effector of attaching and effacing pathogens contributing to the global foodborne disease burden. Tir acts as a cell-surface receptor in host cells, rewiring intracellular processes by targeting multiple host proteins. We investigated the molecular basis for Tir's binding diversity in signalling, finding that Tir is a disordered protein with host-like binding motifs. Unexpectedly, also are several other T3SS effectors. By an integrative approach, we reveal that Tir dimerises via an antiparallel OB-fold within a highly disordered N-terminal cytosolic domain. Also, it has a long disordered C-terminal cytosolic domain partially structured at host-like motifs that bind lipids. Membrane affinity depends on lipid composition and phosphorylation, highlighting a previously unrecognised host interaction impacting Tir-induced actin polymerisation and cell death. Furthermore, multi-site tyrosine phosphorylation enables Tir to engage host SH2 domains in a multivalent fuzzy complex, consistent with Tir's scaffolding role and binding promiscuity. Our findings provide insights into the intracellular Tir domains, highlighting the ability of T3SS effectors to exploit host-like protein disorder as a strategy for host evasion.
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Affiliation(s)
- Marta F M Vieira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, Oeiras, Portugal
| | - Guillem Hernandez
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, Oeiras, Portugal
| | - Qiyun Zhong
- Department of Life Sciences, Imperial College London, South Kensington Campus, London, UK
| | - Miguel Arbesú
- Department of NMR-supported Structural Biology, Leibniz-Forschungsinstitut für Molekulare Pharmakologie, Berlin, Germany
- InstaDeep Ltd, 5 Merchant Square, London, UK
| | - Tiago Veloso
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, Oeiras, Portugal
| | - Tiago Gomes
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, Oeiras, Portugal
| | - Maria L Martins
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, Oeiras, Portugal
| | - Hugo Monteiro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, Oeiras, Portugal
| | - Carlos Frazão
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, Oeiras, Portugal
| | - Gad Frankel
- Department of Life Sciences, Imperial College London, South Kensington Campus, London, UK
| | - Andreas Zanzoni
- Aix-Marseille Université, Inserm, TAGC, UMR_S1090, Marseille, France
| | - Tiago N Cordeiro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, Oeiras, Portugal.
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Jiménez-Salazar JE, Rivera-Escobar RM, Damián-Ferrara R, Maldonado-Cubas J, Rincón-Pérez C, Tarragó-Castellanos R, Damián-Matsumura P. Estradiol-Induced Epithelial to Mesenchymal Transition and Migration Are Inhibited by Blocking c-Src Kinase in Breast Cancer Cell Lines. J Breast Cancer 2023; 26:446-460. [PMID: 37704382 PMCID: PMC10625871 DOI: 10.4048/jbc.2023.26.e37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 06/18/2023] [Accepted: 07/19/2023] [Indexed: 09/15/2023] Open
Abstract
PURPOSE The epithelial-to-mesenchymal transition (EMT) is the main event that favors cell migration and metastasis in breast cancer. Previously, we demonstrated that 1 nM estradiol (E2) promotes EMT, induced by c-Src kinase, causing changes in the localization of proteins that compose the tight junction (TJ) and adherens junction (AJ). METHODS The present work highlights the central role of c-Src in the initiation of metastasis, induced by E2, through increasing the ability of MCF-7 and T47-D cells, which express estrogen receptor alpha (ERα), to migrate and invade before they become metastatic. RESULTS Treatment with E2 can activate two signaling pathways, the first one by the phosphorylated c-Src (p-Src) which forms the p-Src/E-cadherin complex. This phenomenon was completely prevented by incubation with a selective inhibitor of c-Src (5 µM PP2). p-Src then promotes the downregulation of E-cadherin and occludin, which are epithelial phenotype marker proteins of the AJ and TJ, respectively. In the second pathway, E2 binds to ERα, creating a complex that translocates to the nucleus, inducing the synthesis of SNAIL1 and N-cadherin proteins, markers of the mesenchymal phenotype. Both processes increased the migratory and invasive capacities of both cell lines. CONCLUSION The present study demonstrate that E2 enhance EMT and migration, through c-Src activation, in human breast cancer cells that express ERα and become potential therapeutic targets.
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Affiliation(s)
- Javier E Jiménez-Salazar
- Department of Biology of Reproduction, Biological Sciences and Health Division (DCBS), Autonomous Metropolitan University (UAM), Mexico City, México
- Escuela Militar de Graduados de Sanidad, Secretaría de la Defensa Nacional (SEDENA), Mexico City, México
| | - Rene M Rivera-Escobar
- Department of Biology of Reproduction, Biological Sciences and Health Division (DCBS), Autonomous Metropolitan University (UAM), Mexico City, México
| | - Rebeca Damián-Ferrara
- Monterrey Institute of Technology and Higher Education (ITESM), School of Engineering and Sciences, Monterrey, México
| | | | - Catalina Rincón-Pérez
- Escuela Militar de Graduados de Sanidad, Secretaría de la Defensa Nacional (SEDENA), Mexico City, México
| | - Rosario Tarragó-Castellanos
- Department of Biology of Reproduction, Biological Sciences and Health Division (DCBS), Autonomous Metropolitan University (UAM), Mexico City, México
| | - Pablo Damián-Matsumura
- Department of Biology of Reproduction, Biological Sciences and Health Division (DCBS), Autonomous Metropolitan University (UAM), Mexico City, México.
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Mauvais-Jarvis F, Lange CA, Levin ER. Membrane-Initiated Estrogen, Androgen, and Progesterone Receptor Signaling in Health and Disease. Endocr Rev 2022; 43:720-742. [PMID: 34791092 PMCID: PMC9277649 DOI: 10.1210/endrev/bnab041] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Indexed: 12/15/2022]
Abstract
Rapid effects of steroid hormones were discovered in the early 1950s, but the subject was dominated in the 1970s by discoveries of estradiol and progesterone stimulating protein synthesis. This led to the paradigm that steroid hormones regulate growth, differentiation, and metabolism via binding a receptor in the nucleus. It took 30 years to appreciate not only that some cellular functions arise solely from membrane-localized steroid receptor (SR) actions, but that rapid sex steroid signaling from membrane-localized SRs is a prerequisite for the phosphorylation, nuclear import, and potentiation of the transcriptional activity of nuclear SR counterparts. Here, we provide a review and update on the current state of knowledge of membrane-initiated estrogen (ER), androgen (AR) and progesterone (PR) receptor signaling, the mechanisms of membrane-associated SR potentiation of their nuclear SR homologues, and the importance of this membrane-nuclear SR collaboration in physiology and disease. We also highlight potential clinical implications of pathway-selective modulation of membrane-associated SR.
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Affiliation(s)
- Franck Mauvais-Jarvis
- Department of Medicine, Section of Endocrinology and Metabolism, Tulane University School of Medicine, New Orleans, LA, 70112, USA.,Tulane Center of Excellence in Sex-Based Biology & Medicine, New Orleans, LA, 70112, USA.,Southeast Louisiana Veterans Affairs Medical Center, New Orleans, LA, 70119, USA
| | - Carol A Lange
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA.,Department of Medicine (Division of Hematology, Oncology, and Transplantation), University of Minnesota, Minneapolis, MN 55455, USA.,Department of Pharmacology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Ellis R Levin
- Division of Endocrinology, Department of Medicine, University of California, Irvine, Irvine, CA, 92697, USA.,Department of Veterans Affairs Medical Center, Long Beach, Long Beach, CA, 90822, USA
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Recalde G, Moreno-Sosa T, Yúdica F, Quintero CA, Sánchez MB, Jahn GA, Kalergis AM, Mackern-Oberti JP. Contribution of sex steroids and prolactin to the modulation of T and B cells during autoimmunity. Autoimmun Rev 2018. [DOI: 10.1016/j.autrev.2018.03.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Gielen F, Butz M, Rees EJ, Erdelyi M, Moschetti T, Hyvönen M, Edel JB, Kaminski CF, Hollfelder F. Quantitative Affinity Determination by Fluorescence Anisotropy Measurements of Individual Nanoliter Droplets. Anal Chem 2017; 89:1092-1101. [PMID: 28192993 PMCID: PMC5287478 DOI: 10.1021/acs.analchem.6b02528] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Fluorescence anisotropy measurements of reagents compartmentalized into individual nanoliter droplets are shown to yield high-resolution binding curves from which precise dissociation constants (Kd) for protein-peptide interactions can be inferred. With the current platform, four titrations can be obtained per minute (based on ∼100 data points each), with stoichiometries spanning more than 2 orders of magnitude and requiring only tens of microliters of reagents. In addition to affinity measurements with purified components, Kd values for unpurified proteins in crude cell lysates can be obtained without prior knowledge of the concentration of the expressed protein, so that protein purification can be avoided. Finally, we show how a competition assay can be set up to perform focused library screens, so that compound labeling is not required anymore. These data demonstrate the utility of droplet compartments for the quantitative characterization of biomolecular interactions and establish fluorescence anisotropy imaging as a quantitative technique in a miniaturized droplet format, which is shown to be as reliable as its macroscopic test tube equivalent.
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Affiliation(s)
- Fabrice Gielen
- Department of Biochemistry, University of Cambridge , 80 Tennis Court Road, Cambridge, CB2 1GA, United Kingdom.,Living Systems Institute, University of Exeter , Stocker Road, Exeter, EX4 4QD, United Kingdom
| | - Maren Butz
- Department of Biochemistry, University of Cambridge , 80 Tennis Court Road, Cambridge, CB2 1GA, United Kingdom
| | - Eric J Rees
- Department of Chemical Engineering and Biotechnology, New Museums Site , Pembroke Street, Cambridge, CB2 3RA, United Kingdom
| | - Miklos Erdelyi
- Department of Chemical Engineering and Biotechnology, New Museums Site , Pembroke Street, Cambridge, CB2 3RA, United Kingdom.,Department of Optics and Quantum Electronics, University of Szeged , Dom ter 9, Szeged, Hungary
| | - Tommaso Moschetti
- Department of Biochemistry, University of Cambridge , 80 Tennis Court Road, Cambridge, CB2 1GA, United Kingdom
| | - Marko Hyvönen
- Department of Biochemistry, University of Cambridge , 80 Tennis Court Road, Cambridge, CB2 1GA, United Kingdom
| | - Joshua B Edel
- Department of Chemistry, Imperial College London , South Kensington, London, SW7 2AZ, United Kingdom
| | - Clemens F Kaminski
- Department of Chemical Engineering and Biotechnology, New Museums Site , Pembroke Street, Cambridge, CB2 3RA, United Kingdom
| | - Florian Hollfelder
- Department of Biochemistry, University of Cambridge , 80 Tennis Court Road, Cambridge, CB2 1GA, United Kingdom
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