Abstract
Staphylococcus aureus can produce up to five different bi-component cytotoxins: two gamma-hemolysins HlgAB and HlgCB, and leukocidins SF-PV (Panton Valentine leukocidin), ED (LukED) and GH (LukGH, also called LukAB). Their major function in S. aureus pathogenesis is to evade innate immunity by attacking phagocytic cells and to support bacterial growth by lysing red blood cells. The five cytotoxins display different levels of amino acid sequence conservation (30–82%), but all form a remarkably similar beta-barrel type pore structure (greatly resembling the mono-component toxin alpha-hemolysin) that inserts into the target cell membrane leading to necrotic cell death. This review provides an overview of the culmination of decades of research on the structure of these toxins, their unique sequence and structural features that helps to explain the observed functional differences, such as toxin potency towards different cell types and species, receptor specificity and formation of functional non-cognate toxin pairs. The vast knowledge accumulated in this field supports novel approaches and the design of therapeutics targeting these cytotoxins to tame virulence and fight S. aureus infections.
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Abbreviations
- C5aR:
-
C5a receptor
- C5L2:
-
C5a-like receptor 2
- CCR2 and CCR5:
-
C-C chemokine receptors type 2 and 5, respectively
- CXCR1 and CXCR2:
-
CXC chemokine receptors 1 and 2, respectively
- DARC:
-
Duffy antigen receptor
- Hla:
-
alpha-hemolysin
- HlgAB and CB:
-
gamma-hemolysins AB and CB
- LukED and LukGH:
-
leukocidins ED and GH
- LukSF-PV:
-
Panton-Valentine leukocidin
- mAb:
-
monoclonal antibody
- MES:
-
2-(N-morpholino)ethanesulfonic acid
- MPD:
-
2-methylpentane-2,4-diol
- PC:
-
phosphocholine
- PFTs:
-
pore forming toxins
- PMNs:
-
polymorphonuclear cell
- RBCs:
-
red blood cells
- Cα rmsd:
-
root mean square deviation of the α-carbons
- ST:
-
sequence type
References
Adhikari RP, Kort T, Shulenin S, Kanipakala T, Ganjbaksh N, Roghmann MC, Holtsberg FW, Aman MJ (2015) Antibodies to S. aureus LukS-PV attenuated subunit vaccine neutralize a broad spectrum of canonical and non-canonical bicomponent leukotoxin pairs. PLoS One 10:e0137874
Alonzo F 3rd, Torres VJ (2014) The bicomponent pore-forming leucocidins of Staphylococcus aureus. Microbiol Mol Biol Rev 78:199–230
Alonzo F 3rd, Kozhaya L, Rawlings SA, Reyes-Robles T, DuMont AL, Myszka DG, Landau NR, Unutmaz D, Torres VJ (2013) CCR5 is a receptor for Staphylococcus aureus leukotoxin ED. Nature 493:51–55
Badarau A, Rouha H, Malafa S, Logan DT, Håkansson M, Stulik L, Dolezilkova I, Teubenbacher A, Gross K, Maierhofer B, Weber S, Jägerhofer M, Hoffman D, Nagy E (2015) Structure-function analysis of heterodimer formation, oligomerization, and receptor binding of the Staphylococcus aureus bi-component toxin LukGH. J Biol Chem 290:142–156
Badarau A, Rouha H, Malafa S, Battles MB, Walker L, Nielson N, Dolezilkova I, Teubenbacher A, Banerjee S, Maierhofer B, Weber S, Stulik L, Logan DT, Welin M, Mirkina I, Pleban C, Zauner G, Gross K, Jägerhofer M, Magyarics Z, Nagy E (2016) Context matters: the importance of dimerization-induced conformation of the LukGH leukocidin of Staphylococcus aureus for the generation of neutralizing antibodies. MAbs 8:1347–1360
Berube BJ, Bubeck Wardenburg J (2013) Staphylococcus aureus α-toxin: nearly a century of intrigue. Toxins (Basel) 5:1140–1166
Dal Peraro M, van der Goot FG (2016) Pore-forming toxins: ancient, but never really out of fashion. Nat Rev Microbiol 14:77–92
Dalla Serra M, Coraiola M, Viero G, Comai M, Potrich C, Ferreras M, Baba-Moussa L, Colin DA, Menestrina G, Bhakdi S, Prévost G (2005) Staphylococcus aureus bicomponent gamma-hemolysins, HlgA, HlgB, and HlgC, can form mixed pores containing all components. J Chem Inf Model 45:1539–1545
Diep BA, Chan L, Tattevin P, Kajikawa O, Martin TR, Basuino L, Mai TT, Marbach H, Braughton KR, Whitney AR, Gardner DJ, Fan X, Tseng CW, Liu GY, Badiou C, Etienne J, Lina G, Matthay MA, DeLeo FR, Chambers HF (2010) Polymorphonuclear leukocytes mediate Staphylococcus aureus Panton-Valentine leukocidin-induced lung inflammation and injury. Proc Natl Acad Sci U S A 107:5587–5592
Diep BA, Le VTM, Visram ZC, Rouha H, Stulik L, Dip EC, Nagy G, Nagy E (2016) Improved protection in a rabbit model of CA-MRSA necrotizing pneumonia upon neutralization of leukocidins in addition to alpha-hemolysin. Antimicrob Agents Chemother 60:6333–6340
Dong J, Qiu J, Zhang Y, Lu C, Dai X, Wang J, Li H, Wang X, Tan W, Luo M, Niu X, Deng X (2013) Oroxylin A Inhibits hemolysis via hindering the self-assembly of α-hemolysin heptameric transmembrane pore. In: Livesay DR (ed) PLoS Comput Biol 9:e1002869
Dryla A, Prustomersky S, Gelbmann D, Hanner M, Bettinger E, Kocsis B, Kustos T, Henics T, Meinke A, Nagy E (2005) Comparison of antibody repertoires against Staphylococcus aureus in healthy individuals and in acutely infected patients. Clin Diagn Lab Immunol 12:387–398
DuMont AL, Yoong P, Day CJ, Alonzo F 3rd, McDonald WH, Jennings MP, Torres VJ (2013) Staphylococcus aureus LukAB cytotoxin kills human neutrophils by targeting the CD11b subunit of the integrin Mac-1. Proc Natl Acad Sci U S A 110:10794–10799
DuMont AL, Yoong P, Liu X, Day CJ, Chumbler NM, James DBA, Alonzo F, Bode NJ, Lacy DB, Jennings MP, Torres VJ (2014) Identification of a crucial residue required for Staphylococcus aureus LukAB cytotoxicity and receptor recognition. Infect Immun 82:1268–1276
Fiaschi L, Di Paolo B, Scarselli M, Pozzi C, Tomaszewski K, Galletti B, Nardi-Dei V, Arcidiacono L, Mishra RP, Mori E, Pallaoro M, Falugi F, Torre A, Fontana MR, Soriani M, Bubeck Wardenburg J, Grandi G, Rappuoli R, Ferlenghi I, Bagnoli F (2016) Auto-assembling detoxified Staphylococcus aureus alpha-hemolysin mimicking the wild-type cytolytic toxin. In: Burns DL (ed) Clin Vaccine Immunol 23:442–450
Foletti D, Strop P, Shaughnessy L, Hasa-Moreno A, Casas MG, Russell M, Bee C, Wu S, Pham A, Zeng Z, Pons J, Rajpal A, Shelton D (2013) Mechanism of action and in vivo efficacy of a human-derived antibody against Staphylococcus aureus α-hemolysin. J Mol Biol 425:1641–1654
Gillet Y, Issartel B, Vanhems P, Fournet JC, Lina G, Bes M, Vandenesch F, Piémont Y, Brousse N, Floret D, Etienne J (2002) Association between Staphylococcus aureus strains carrying gene for Panton-Valentine leukocidin and highly lethal necrotising pneumonia in young immunocompetent patients. Lancet 359:753–759
Gravet A, Colin DA, Keller D, Giradot R, Monteil H, Prèvost G (1998) Characterization of a novel structural member, LukE-LukD, of the bi-component staphylococcal leucotoxins family. FEBS Lett 436:202–208
Guillet V, Roblin P, Werner S, Coraiola M, Menestrina G, Monteil H, Prévost G, Mourey L (2004) Crystal structure of leucotoxin S component: new insight into the Staphylococcal beta-barrel pore-forming toxins. J Biol Chem 279:41028–41037
Hua L, Hilliard JJ, Shi Y, Tkaczyk C, Cheng LI, Yu X, Datta V, Ren S, Feng H, Zinsou R, Keller A, O’Day T, Du Q, Cheng L, Damschroder M, Robbie G, Suzich J, Stover CK, Sellman BR (2014) Assessment of an anti-alpha-toxin monoclonal antibody for prevention and treatment of Staphylococcus aureus-induced pneumonia. Antimicrob Agents Chemother 58:1108–1117
Jayasinghe L, Bayley H (2005) The leukocidin pore: evidence for an octamer with four LukF subunits and four LukS subunits alternating around a central axis. Protein Sci 14:2550–2561
Joubert O, Viero G, Keller D, Martinez E, Colin DA, Monteil H, Mourey L, Dalla Serra M, Prévost G (2006) Engineered covalent leucotoxin heterodimers form functional pores: insights into S–F interactions. Biochem J 396:381–389
Kaneko J, Kamio Y (2004) Bacterial two-component and hetero-heptameric pore-forming cytolytic toxins: structures, pore-forming mechanism, and organization of the genes. Biosci Biotechnol Biochem 68:981–1003
Karauzum H, Adhikari RP, Sarwar J, Devi VS, Abaandou L, Haudenschild C, Mahmoudieh M, Boroun AR, Vu H, Nguyen T, Warfield KL, Shulenin S, Aman MJ (2013) Structurally designed attenuated subunit vaccines for S. aureus LukS-PV and LukF-PV confer protection in a mouse bacteremia model. PLoS One 8:e65384
Katsumi H, Tomita T, Kaneko J, Kamio Y (1999) Vitronectin and its fragments purified as serum inhibitors of Staphylococcus aureus gamma-hemolysin and leukocidin, and their specific binding to the hlg2 and the LukS components of the toxins. FEBS Lett 460:451–456
Kuehnert MJ, Kruszon-Moran D, Hill HA, McQuillan G, McAllister SK, Fosheim G, McDougal LK, Chaitram J, Jensen B, Fridkin SK, Killgore G, Tenover FC (2006) Prevalence of Staphylococcus aureus nasal colonization in the United States, 2001–2002. J Infect Dis 193:172–179
Kuroda M, Ohta T, Uchiyama I, Baba T, Yuzawa H, Kobayashi I, Cui L, Oguchi A, Aoki K, Nagai Y, Lian J, Ito T, Kanamori M, Matsumaru H, Maruyama A, Murakami H, Hosoyama A, Mizutani-Ui Y, Takahashi NK, Sawano T, Inoue R, Kaito C, Sekimizu K, Hirakawa H, Kuhara S, Goto S, Yabuzaki J, Kanehisa M, Yamashita A, Oshima K, Furuya K, Yoshino C, Shiba T, Hattori M, Ogasawara N, Hayashi H, Hiramatsu K (2001) Whole genome sequencing of meticillin-resistant Staphylococcus aureus. Lancet 357:1225–1240
Laventie BJ, Guérin F, Mourey L, Tawk MY, Jover E, Maveyraud L, Prévost G (2014) Residues essential for Panton-Valentine leukocidin S component binding to its cell receptor suggest both plasticity and adaptability in its interaction surface. In: Diep BA (ed) PLoS ONE 9:e92094
Lewis M, Weaver CD, McClain MS (2010) Identification of small molecule inhibitors of Clostridium perfringens ε-toxin cytotoxicity using a cell-based high-throughput screen. Toxins (Basel) 2:1825–1847
Li H, Zhao X, Wang J, Dong Y, Meng S, Li R, Niu X, Deng X (2015) β-sitosterol interacts with pneumolysin to prevent Streptococcus pneumoniae infection. Sci Rep 5:17668
Lina G, Piémont Y, Godail-Gamot F, Bes M, Peter MO, Gauduchon V, Vandenesch F, Etienne J (1999) Involvement of Panton-Valentine leukocidin-producing Staphylococcus aureus in primary skin infections and pneumonia. Clin Infect Dis 29:1128–1132
Löffler B, Hussain M, Grundmeier M, Brück M, Holzinger D, Varga G, Roth J, Kahl BC, Proctor RA, Peters G (2010) Staphylococcus aureus Panton-Valentine leukocidin is a very potent cytotoxic factor for human neutrophils. In: Cheung A (ed) PLoS Pathog 6:e1000715
Malachowa N, Kobayashi SD, Braughton KR, Whitney AR, Parnell MJ, Gardner DJ, Deleo FR (2012) Staphylococcus aureus leukotoxin GH promotes inflammation. J Infect Dis 206:1185–1193
Menestrina G (1986) Ionic channels formed by Staphylococcus aureus alpha-toxin: voltage-dependent inhibition by divalent and trivalent cations. J Membr Biol 90:177–190
Meyer F, Girardot R, Piemont Y, Prevost G, Colin DA (2009) Analysis of the specificity of Panton-Valentine leucocidin and gamma-hemolysin F component binding. Infect Immun 77:266–273
Monma N, Nguyen VT, Kaneko J, Higuchi H, Kamio Y (2004) Essential residues, W177 and R198, of LukF for phosphatidylcholine-binding and pore-formation by staphylococcal -hemolysin on human erythrocyte membranes. J Biochem 136:427–431
Morinaga N, Kaihou Y, Noda M (2003) Purification, cloning and characterization of variant luke-lukd with strong leukocidal activity of staphylococcal bi-component leukotoxin family. Microbiol Immunol 47:81–90
Nagy E, Badarau A, Rouha H, Nagy G, Mirkina I, Magyarics Z, Visram Z, Battles MB, Prinz BD, Jain TS (2013) Cross-reactive Staphylococcus aureus antibody. WO2013156534 A1. 24 Oct 2013
Nguyen VT, Kamio Y, Higuchi H (2003) Single-molecule imaging of cooperative assembly of γ-hemolysin on erythrocyte membranes. EMBO J 22:4968–4979
Nocadello S, Minasov G, Shuvalova L, Dubrovska I, Sabini E, Bagnoli F, Grandi G, Anderson WF (2016) Crystal structures of the components of the Staphylococcus aureus leukotoxin ED. Acta Cryst D Struct Biol 72:113–120
Oganesyan V, Peng L, Damschroder MM, Cheng L, Sadowska A, Tkaczyk C, Sellman BR, Wu H, Dall’Acqua WF (2014) Mechanisms of neutralization of a human anti-alpha toxin antibody. J Biol Chem 289:29874–29880
Olson R, Nariya H, Yokota K, Kamio Y, Gouaux E (1999) Crystal structure of staphylococcal LukF delineates conformational changes accompanying formation of a transmembrane channel. Nat Struct Biol 6:134–140
Pédelacq JD, Maveyraud L, Prévost G, Baba-Moussa L, González A, Courcelle E, Shepard W, Monteil H, Samama JP, Mourey L (1999) The structure of a Staphylococcus aureus leucocidin component (LukF-PV) reveals the fold of the water-soluble species of a family of transmembrane pore-forming toxins. Structure 7:277–287
Potrich C, Bastiani H, Colin DA, Huck S, Prévost G, Dalla Serra M (2009) The influence of membrane lipids in Staphylococcus aureus gamma-hemolysins pore formation. J Membr Biol 227:13–24
Qiu J, Niu X, Dong J, Wang D, Wang J, Li H, Luo M, Li S, Feng H, Deng X (2012) Baicalin protects mice from Staphylococcus aureus pneumonia via inhibition of the cytolytic activity of -hemolysin. J Infect Dis 206:292–301
Ramaro N, Sanchis V (2013) The pore-forming haemolysins of Bacillus cereus: a review. Toxins (Basel) 5:1119–1139
Reyes-Robles T, Alonzo F 3rd, Kozhaya L, Lacy DB, Unutmaz D, Torres VJ (2013) Staphylococcus aureus leukotoxin ED targets the chemokine receptors CXCR1 and CXCR2 to kill leukocytes and promote infection. Cell Host Microbe 14:453–459
Reyes-Robles T, Lubkin A, Alonzo F 3rd, Lacy DB, Torres VJ (2016) Exploiting dominant-negative toxins to combat Staphylococcus aureus pathogenesis. EMBO Rep 17:428–440
Roblin P, Guillet V, Joubert O, Keller D, Erard M, Maveyraud L, Prévost G, Mourey L (2008) A covalent S-F heterodimer of leucotoxin reveals molecular plasticity of beta-barrel pore-forming toxins. Proteins 71:485–496
Rouha H, Badarau A, Visram ZC, Battles MB, Prinz B, Magyarics Z, Nagy G, Mirkina I, Stulik L, Zerbs M, Jägerhofer M, Maierhofer B, Teubenbacher A, Dolezilkova I, Gross K, Banerjee S, Zauner G, Malafa S, Zmajkovic J, Maier S, Mabry R, Krauland E, Wittrup KD, Gerngross TU, Nagy E (2015) Five birds, one stone: neutralization of α-hemolysin and 4 bi-component leukocidins of Staphylococcus aureus with a single human monoclonal antibody. MAbs 7:243–254
Rudolf M, Koch H, inventors; Kenta Biotech AG, assignee (2011) Human monoclonal antibody against Staphylococcus aureus derived alpha-toxin and its use in treating or preventing abscess formation patent. WO2011018208. 17 Feb 2011
Song L, Hobaugh MR, Shustak C, Cheley S, Bayley H, Gouaux JE (1996) Structure of staphylococcal alpha-hemolysin, a heptameric transmembrane pore. Science 274:1859–1866
Spaan AN, Henry T, van Rooijen WJ, Perret M, Badiou C, Aerts PC, Kemmink J, de Haas CJ, van Kessel KP, Vandenesch F, Lina G, van Strijp JA (2013) The staphylococcal toxin Panton-Valentine leukocidin targets human C5a receptors. Cell Host Microbe 13:584–594
Spaan AN, Surewaard BG, Nijland R, van Strijp JA (2014a) Neutrophils versus Staphylococcus aureus: a biological tug of war. Annu Rev Microbiol 67:629–650
Spaan AN, Vrieling M, Wallet P, Badiou C, Reyes-Robles T, Ohneck EA, Benito Y, de Haas CJ, Day CJ, Jennings MP, Lina G, Vandenesch F, van Kessel KP, Torres VJ, van Strijp JA, Henry T (2014b) The staphylococcal toxins γ-haemolysin AB and CB differentially target phagocytes by employing specific chemokine receptors. Nat Commun 5:5438
Spaan AN, Schiepers A, de Haas CJ, van Hooijdonk DD, Badiou C, Contamin H, Vandenesch F, Lina G, Gerard NP, Gerard C, van Kessel KP, Henry T, van Strijp JA (2014c) Differential interaction of the staphylococcal toxins Panton-Valentine leukocidin and γ-hemolysin CB with human C5a receptors. J Immunol 195:1034–1043
Spaan AN, Reyes-Robles T, Badiou C, Cochet S, Boguslawski KM, Yoong P, Day CJ, de Haas CJC, van Kessel KPM, Vandenesch F, Jennings MP, Le Van Kim C, Colin Y, van Strijp JA, Henry T, Torres VJ (2015) Staphylococcus aureus targets the Duffy antigen receptor for chemokines (DARC) to lyse erythrocytes. Cell Host Microbe 18:363–370
Staphylococcus aureus toxoids phase 1–2 vaccine trial. https://clinicaltrials.gov/ct2/show/NCT01011335. Accessed 28 Oct 2016.
Sugawara T, Yamashita D, Kato K, Peng Z, Ueda J, Kaneko J, Kamio Y, Tanaka Y, Yao M (2015) Structural basis for pore-forming mechanism of staphylococcal alpha-hemolysin. Toxicon 108:226–231
Tanaka Y, Hirano N, Kaneko J, Kamio Y, Yao M, Tanaka I (2011) 2-Methyl-2,4-pentanediol induces spontaneous assembly of staphylococcal α-hemolysin into heptameric pore structure. Protein Sci 20:448–456
Tawk MY, Zimmermann-Meisse G, Bossu JL, Potrich C, Bourcier T, Dalla Serra M, Poulain B, Prévost G, Jover E (2015) Internalization of staphylococcal leukotoxins that bind and divert the C5a receptor is required for intracellular Ca2+ mobilization by human neutrophils. Cell Microbiol 17:1241–1257
Vandenesch F, Lina G, Henry T (2012) Staphylococcus aureus hemolysins, bi-component leukocidins, and cytolytic peptides: a redundant arsenal of membrane-damaging virulence factors? Front Cell Infect Microbiol 2:12
von Eiff C, Friedrich AW, Peters G, Becker K (2004) Prevalence of genes encoding for members of the staphylococcal leukotoxin family among clinical isolates of Staphylococcus aureus. Diagn Microbiol Infect Dis 49:157–162
Wu Q, Guo Z (2010) Glycosylphosphatidylinositols are potential targets for the development of novel inhibitors for aerolysin-type of pore-forming bacterial toxins. Med Res Rev 30:258–269
Yamashita K, Kawai Y, Tanaka Y, Hirano N, Kaneko J, Tomita N, Ohta M, Kamio Y, Yao M, Tanaka I (2011) Crystal structure of the octameric pore of staphylococcal γ-hemolysin reveals the β-barrel pore formation mechanism by two components. Proc Natl Acad Sci U S A 108:17314–17319
Yamashita D, Sugawara T, Takeshita M, Kaneko J, Kamio Y, Tanaka I, Tanaka Y, Yao M (2014) Molecular basis of transmembrane beta-barrel formation of staphylococcal pore-forming toxins. Nat Commun 5:4897
Yokota K, Kamio Y (2000) Tyrosine 72 residue at the bottom of rim domain in LukF crucial for the sequential binding of the Staphylococcal γ-Hemolysin to human erythrocytes. Biosci Biotechnol Biochem 64:2744–2747
Yoong P, Torres VJ (2015) Counter inhibition between leukotoxins attenuates Staphylococcus aureus virulence. Nat Commun 6:8125
Acknowledgements
We thank Christine Power for the critical reading of the manuscript.
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The authors declare potential conflict of interest being employees of the biotechnology company involved in this research work.
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Badarau, A., Trstenjak, N., Nagy, E. (2017). Structure and Function of the Two-Component Cytotoxins of Staphylococcus aureus – Learnings for Designing Novel Therapeutics. In: Atassi, M. (eds) Protein Reviews. Advances in Experimental Medicine and Biology(), vol 966. Springer, Singapore. https://doi.org/10.1007/5584_2016_200
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