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Binding of the Drosophila cytokine Spätzle to Toll is direct and establishes signaling
Abstract
The extracellular protein Spätzle is required for activation of the Toll signaling pathway in the embryonic development and innate immune defense of Drosophila. Spätzle is synthesized as a pro-protein and is processed to a functional form by a serine protease. We show here that the mature form of Spätzle triggers a Toll-dependent immune response after injection into the hemolymph of flies. Spätzle specifically bound to Drosophila cells and to Cos-7 cells expressing Toll. Furthermore, in vitro experiments showed that the mature form of Spätzle bound to the Toll ectodomain with high affinity and with a stoichiometry of one Spätzle dimer to two receptors. The Spätzle pro-protein was inactive in all these assays, indicating that the pro-domain sequence, which is natively unstructured, acts to prevent interaction of the cytokine and its receptor Toll. These results show that, in contrast to the human Toll-like receptors, Drosophila Toll requires only an endogenous protein ligand for activation and signaling.
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“The possibility that mammalian TLRs recognize non-microbial structures is not unexpected, because the evolutionarily conserved Toll receptor originally identified in Drosophila melanogaster binds to the endogenous ligand Spätzle24.”
From Sterile inflammation: sensing and reacting to damage (2010) · cites this paper as [24]
Citations
Cites
Janeway, C. A., & Medzhitov, R. (2002) · Annual Review of Immunology · doi:10.1146/annurev.immunol.20.083001.084359 · Cited by 8,394
Regulation of Cell Survival by Secreted Proneurotrophins
Lee, R., Kermani, P., Teng, K. K., & Hempstead, B. L. (2001) · Science · doi:10.1126/science.1065057 · Cited by 1,670
Discrimination of bacterial lipoproteins by Toll-like receptor 6
Takeuchi, O., Kawai, T., Mühlradt, P. F., Morr, M., Radolf, J. D., Zychlinsky, A., Takeda, K., & Akira, S. (2001) · International Immunology · doi:10.1093/intimm/13.7.933 · Cited by 1,233
Lemaître, B., Reichhart, J., & Hoffmann, J. A. (1997) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.94.26.14614 · Cited by 1,044
Self-citationJPred: a consensus secondary structure prediction server.
Cuff, J. A., Clamp, M. E., Siddiqui, A. S., Finlay, M., & Barton, G. J. (1998) · Bioinformatics · doi:10.1093/bioinformatics/14.10.892 · Cited by 1,004
The Toll and Imd pathways are the major regulators of the immune response in Drosophila
Gregorio, E. D., Spellman, P. T., Tzou, P., Rubin, G. M., & Lemaître, B. (2002) · The EMBO Journal · doi:10.1093/emboj/21.11.2568 · Cited by 936
Clemens, J. C., Worby, C. A., Simonson-Leff, N., Muda, M., Maehama, T., Hemmings, B. A., & Dixon, J. E. (2000) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.110149597 · Cited by 843
A CONSERVED SIGNALING PATHWAY: The Drosophila Toll-Dorsal Pathway
Belvin, M. P., & Anderson, K. V. (1996) · Annual Review of Cell and Developmental Biology · doi:10.1146/annurev.cellbio.12.1.393 · Cited by 836 · cited 1×
“, in addition to its long-known function in embryonic dorso-ventral patternin”
BackgroundMichel, T., Reichhart, J., Hoffmann, J. A., & Royet, J. (2001) · Nature · doi:10.1038/414756a · Cited by 818
Self-citationToll-like receptor 4 imparts ligand-specific recognition of bacterial lipopolysaccharide.
Lien, E., Means, T., Heine, H., Yoshimura, A., Kusumoto, S., Fukase, K., Fenton, M., Oikawa, M., Qureshi, N., Monks, B., et al. (2000) · Journal of Clinical Investigation · doi:10.1172/jci8541 · Cited by 798
Toll-like receptors: key mediators of microbe detection
Underhill, D. M., & Ozinsky, A. (2002) · Current Opinion in Immunology · doi:10.1016/s0952-7915(01)00304-1 · Cited by 685
Lipopolysaccharide Is in Close Proximity to Each of the Proteins in Its Membrane Receptor Complex
Correia, J. D. S., Soldau, K., Christen, U., Tobias, P. S., & Ulevitch, R. J. (2001) · Journal of Biological Chemistry · doi:10.1074/jbc.m009164200 · Cited by 649
Crystallographic Evidence for Preformed Dimers of Erythropoietin Receptor Before Ligand Activation
Livnah, O., Stura, E. A., Middleton, S. A., Johnson, D. L., Jolliffe, L. K., & Wilson, I. A. (1999) · Science · doi:10.1126/science.283.5404.987 · Cited by 604
Production of β-defensins by human airway epithelia
Singh, P. K., Jia, H. P., Wiles, K., Hesselberth, J. R., Liu, L., Conway, B. D., Greenberg, E. P., Valore, E. V., Welsh, M. J., Ganz, T., et al. (1998) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.95.25.14961 · Cited by 579
Structures of Glycoprotein Ibα and Its Complex with von Willebrand Factor A1 Domain
Huizinga, E. G., Tsuji, S., Romijn, R. A., Schiphorst, M. E., de Groot, P. G., Sixma, J. J., & Gros, P. (2002) · Science · doi:10.1126/science.107355 · Cited by 545
Toll-like receptors as adjuvant receptors
Kaisho, T., & Akira, S. (2002) · Biochimica et Biophysica Acta (BBA) - Molecular Cell Research · doi:10.1016/s0167-4889(01)00182-3 · Cited by 493
Toll receptors in innate immunity.
Imler, J., & Hoffmann, J. (2001) · Trends in Cell Biology · doi:10.1016/s0962-8924(01)02004-9 · Cited by 474
Self-citationConstitutive activation of toll-mediated antifungal defense in serpin-deficient Drosophila.
Levashina, E., Langley, E., Green, C., Gubb, D., Ashburner, M., Hoffmann, J. A., & Reichhart, J. (1999) · Science · doi:10.1126/science.285.5435.1917 · Cited by 469
Self-citationPoltorak, A. N., Ricciardi‐Castagnoli, P., Citterio, S., & Beutler, B. (2000) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.040565397 · Cited by 430
Toll-related receptors and the control of antimicrobial peptide expression in Drosophila.
Tauszig, S., Jouanguy, E., Hoffmann, J. A., & Imler, J. (2000) · Proceedings of the National Academy of Sciences of the United States of America · doi:10.1073/pnas.180130797 · Cited by 429
Self-citationA genome-wide analysis of immune responses in Drosophila
Irving, P., Troxler, L., Heuer, T. S., Belvin, M. P., Kopczynski, C., Reichhart, J., Hoffmann, J. A., & Hétru, C. (2001) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.261573998 · Cited by 397
Self-citationThe Rel Protein DIF Mediates the Antifungal but Not the Antibacterial Host Defense in Drosophila
Rutschmann, S., Jung, A. C., Hétru, C., Reichhart, J., Hoffmann, J. A., & Ferrandon, D. (2000) · Immunity · doi:10.1016/s1074-7613(00)80208-3 · Cited by 377
Self-citationTwo EGF molecules contribute additively to stabilization of the EGFR dimer
Lemmon, M. A., Bu, Z., Ladbury, J. E., Zhou, M., Pinchasi, D., Lax, I., Engelman, D. M., & Schlessinger, J. (1997) · The EMBO Journal · doi:10.1093/emboj/16.2.281 · Cited by 368
Activation of Drosophila Toll During Fungal Infection by a Blood Serine Protease
Ligoxygakis, P., Pelte, N., Hoffmann, J. A., & Reichhart, J. (2002) · Science · doi:10.1126/science.1072391 · Cited by 354
Self-citationSchneider, D. S., Hudson, K. L., Lin, T. Y., & Anderson, K. V. (1991) · Genes & Development · doi:10.1101/gad.5.5.797 · Cited by 325
Role of Drosophila IKKγ in a Toll-independent antibacterial immune response
Rutschmann, S., Jung, A. C., Zhou, R., Silverman, N. S., Hoffmann, J. A., & Ferrandon, D. (2000) · Nature Immunology · doi:10.1038/79801 · Cited by 280
Self-citationToll-like receptors as potential therapeutic targets for multiple diseases
Zuany‐Amorim, C., Hastewell, J. G., & Walker, C. (2002) · Nature Reviews Drug Discovery · doi:10.1038/nrd914 · Cited by 231
Loopy Proteins Appear Conserved in Evolution
Liu, J., Tan, H., & Rost, B. (2002) · Journal of Molecular Biology · doi:10.1016/s0022-2836(02)00736-2 · Cited by 192
DeLotto, Y., & DeLotto, R. (1998) · Mechanisms of Development · doi:10.1016/s0925-4773(98)00024-0 · Cited by 187
Liu, L., Roberts, A. A., & Ganz, T. (2003) · The Journal of Immunology · doi:10.4049/jimmunol.170.1.575 · Cited by 184
Rattenholl, A., Lilie, H., Grossmann, A., Stern, A., Schwarz, E., & Rudolph, R. (2001) · European Journal of Biochemistry · doi:10.1046/j.1432-1327.2001.02232.x · Cited by 132
The role of Toll-like receptors in host defense against microbial infection
Krutzik, S. R., Sieling, P. A., & Modlin, R. L. (2001) · Current Opinion in Immunology · doi:10.1016/s0952-7915(00)00189-8 · Cited by 131
Signaling of the Cardiotrophin-1 Receptor
Robledo, O., Fourcin, M., Chevalier, S., Guillet, C., Auguste, P., Pouplard-Barthelaix, A., Pennica, D., & Gascan, H. (1997) · Journal of Biological Chemistry · doi:10.1074/jbc.272.8.4855 · Cited by 126
Self-citationThe Drosophila Toll‐9 activates a constitutive antimicrobial defense
Ooi, J., Yagi, Y., Hu, X., & Ip, Y. (2002) · EMBO Reports · doi:10.1093/embo-reports/kvf004 · Cited by 124
Getting knotted: a model for the structure and activation of Spätzle
Mizuguchi, K., Parker, J. S., Blundell, T. L., & Gay, N. J. (1998) · Trends in Biochemical Sciences · doi:10.1016/s0968-0004(98)01216-x · Cited by 107
Self-citationActivation of a protease cascade involved in patterning the Drosophila embryo
LeMosy, E. K., Tan, Y.-Q., & Hashimoto, C. (2001) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.081026598 · Cited by 92
Autoproteolysis and feedback in a protease cascade directing Drosophila dorsal–ventral cell fate
Dissing, M., Giordano, H., & DeLotto, R. (2001) · The EMBO Journal · doi:10.1093/emboj/20.10.2387 · Cited by 85
Mitsuzawa, H., Wada, I., Sano, H. I., Iwaki, D., Murakami, S., Himi, T., Matsushima, N., & Kuroki, Y. (2001) · Journal of Biological Chemistry · doi:10.1074/jbc.m104177200 · Cited by 58
Gascan, H., Anegón, I., Praloran, V., Naulet, J., Godard, A., Soulillou, J., & Jacques, Y. (1990) · The Journal of Immunology · doi:10.4049/jimmunol.144.7.2592 · Cited by 51
Self-citationLuo, C., Shen, B., Manley, J. L., & Zheng, L. (2001) · Insect Molecular Biology · doi:10.1046/j.0962-1075.2001.00284.x · Cited by 42
DeLotto, Y., Smith, C. L., & DeLotto, R. (2001) · Molecular and General Genetics MGG · doi:10.1007/s004380000350 · Cited by 31
Holbrook, M. R., Slakey, L. L., & GROSS, D. J. (2000) · Biochemical Journal · doi:10.1042/bj3520099 · Cited by 17
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Metadata
- Authors
- Weber, A. N. R., Tauszig-Delamasure, S., Hoffmann, J. A., Lelièvre, E., Gascan, H., Ray, K. P., Morse, M. A., Imler, J.-L., & Gay, N. J.
- Affiliations
- University of Cambridge (GB)
- Centre National de la Recherche Scientifique (FR)
- Inserm (FR)
- GlaxoSmithKline (United Kingdom) (GB)
- Corresponding author
- Imler, Jean-Luc
- Gay, Nicholas J
- ORCID
- Venue
- Nature Immunology
- Published
- 2003-07-20
- Volume
- 4
- Issue
- 8
- Pages
- 794-800
- ISSN
- 1529-2908 (ISSN-L)
- 1529-2916
- OpenAlex
- W2032056947
- Cited by
- 469
- References
- 42
- Citations by year
- 2026: 13 · 2025: 14 · 2024: 17 · 2023: 16 · 2022: 22 · 2021: 29 · 2020: 16 · 2019: 28 · 2018: 18 · 2017: 14 · 2016: 11 · 2015: 18 · 2014: 22 · 2013: 20 · 2012: 17
- FWCI
- 9.84
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature Immunology (publishedVersion)
- PubMed (publishedVersion)
- HAL (submittedVersion)
- Funders
- GlaxoSmithKline
- National Institute of Allergy and Infectious Diseases (5P01AI44220-02, P01AI044220)
- Topics
- Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
- Life Sciences › Immunology and Microbiology › Immunology › Invertebrate Immune Response Mechanisms
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
- Keywords
- Spätzle, Toll receptor, Drosophila innate immunity, Toll pathway, cytokine receptor binding, receptor activation, hemolymph injection, Drosophila embryogenesis, innate immune defense
- MeSH terms
- Animals, Drosophila, Protein Binding, Receptors, Cell Surface, Signal Transduction, Protein Structure, Tertiary, Insect Proteins, Drosophila Proteins, Toll-Like Receptors
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