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Kim D, Kwon SJ, Wu X, Sauve J, Lee I, Nam J, Kim J, Dordick JS. Selective Killing of Pathogenic Bacteria by Antimicrobial Silver Nanoparticle-Cell Wall Binding Domain Conjugates. ACS APPLIED MATERIALS & INTERFACES 2018; 10:13317-13324. [PMID: 29619821 DOI: 10.1021/acsami.8b00181] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Broad-spectrum antibiotics indiscriminately kill bacteria, removing nonpathogenic microorganisms and leading to evolution of antibiotic resistant strains. Specific antimicrobials that could selectively kill pathogenic bacteria without targeting other bacteria in the natural microbial community or microbiome may be able to address this concern. In this work, we demonstrate that silver nanoparticles, suitably conjugated to a selective cell wall binding domain (CBD), can efficiently target and selectively kill bacteria. As a relevant example, CBDBA from Bacillus anthracis selectively bound to B. anthracis in a mixture with Bacillus subtilis, as well in a mixture with Staphylococcus aureus. This new biologically-assisted hybrid strategy, therefore, has the potential to provide selective decontamination of pathogenic bacteria with minimal impact on normal microflora.
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Affiliation(s)
- Domyoung Kim
- Department of Chemical and Biological Engineering , Rensselaer Polytechnic Institute , 110 8th Street , Troy , New York 12180 , United States
| | - Seok-Joon Kwon
- Department of Chemical and Biological Engineering , Rensselaer Polytechnic Institute , 110 8th Street , Troy , New York 12180 , United States
| | - Xia Wu
- Department of Chemical and Biological Engineering , Rensselaer Polytechnic Institute , 110 8th Street , Troy , New York 12180 , United States
| | - Jessica Sauve
- Department of Chemical and Biological Engineering , Rensselaer Polytechnic Institute , 110 8th Street , Troy , New York 12180 , United States
| | - Inseon Lee
- Department of Chemical and Biological Engineering , Korea University , 145 Anam-ro , Seongbuk-gu , Seoul 02841 , Republic of Korea
| | - Jahyun Nam
- Department of Chemical and Biological Engineering , Korea University , 145 Anam-ro , Seongbuk-gu , Seoul 02841 , Republic of Korea
| | - Jungbae Kim
- Department of Chemical and Biological Engineering , Korea University , 145 Anam-ro , Seongbuk-gu , Seoul 02841 , Republic of Korea
| | - Jonathan S Dordick
- Department of Chemical and Biological Engineering , Rensselaer Polytechnic Institute , 110 8th Street , Troy , New York 12180 , United States
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Choudary SK, Qiu J, Plaut AG, Kritzer JA. Versatile Substrates and Probes for IgA1 Protease Activity. Chembiochem 2013; 14:2007-12. [DOI: 10.1002/cbic.201300281] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Indexed: 12/31/2022]
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Nakazawa H, Kim DM, Matsuyama T, Ishida N, Ikeuchi A, Ishigaki Y, Kumagai I, Umetsu M. Hybrid Nanocellulosome Design from Cellulase Modules on Nanoparticles: Synergistic Effect of Catalytically Divergent Cellulase Modules on Cellulose Degradation Activity. ACS Catal 2013. [DOI: 10.1021/cs400012v] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hikaru Nakazawa
- Department of Biomolecular Engineering,
Graduate school of Engineering, Tohoku University, 6-6-11 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Do-Myoung Kim
- Department of Biomolecular Engineering,
Graduate school of Engineering, Tohoku University, 6-6-11 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Takashi Matsuyama
- Toyota Central R&D Laboratories, Yokomichi 41-1, Oaza Nagakute, Nagakute-cho, Aichi-gun, 480-1192, Japan
| | - Nobuhiro Ishida
- Toyota Central R&D Laboratories, Yokomichi 41-1, Oaza Nagakute, Nagakute-cho, Aichi-gun, 480-1192, Japan
| | - Akinori Ikeuchi
- Toyota Central R&D Laboratories, Yokomichi 41-1, Oaza Nagakute, Nagakute-cho, Aichi-gun, 480-1192, Japan
| | - Yuri Ishigaki
- Department of Biomolecular Engineering,
Graduate school of Engineering, Tohoku University, 6-6-11 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Izumi Kumagai
- Department of Biomolecular Engineering,
Graduate school of Engineering, Tohoku University, 6-6-11 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Mitsuo Umetsu
- Department of Biomolecular Engineering,
Graduate school of Engineering, Tohoku University, 6-6-11 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
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Vitovski S, Sayers JR. Relaxed cleavage specificity of an immunoglobulin A1 protease from Neisseria meningitidis. Infect Immun 2007; 75:2875-85. [PMID: 17353288 PMCID: PMC1932897 DOI: 10.1128/iai.01671-06] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Respiratory pathogens, such as Neisseria meningitidis, secrete site-specific proteases able to cleave human immunoglobulin A1 (IgA1), the first line of defense at mucosal membranes. Bacterial isolates show wide variability in IgA1 protease activity, and those isolated from patients with clinical infection possess the highest levels of activity. A feature of this enzyme is the self-cleavage required for secretion of the mature extracellular form. Known cleavage targets contain a proline-rich consensus recognition sequence, Pro-Pro-Ser-Pro, residing in the variable linker region that connects the protease and translocator domains. Here, we report the sequence of the NMB IgA1 protease and the unexpected self-cleavage and subsequent extracellular release of mature IgA1 protease from mutants lacking the previously defined consensus cleavage site. We investigated the possible link between enzyme secretion and variability in the linker sequence segment using site-directed mutagenesis and linker domain swapping to construct mutated and chimeric forms of the IgA1 protease from N. meningitidis strain NMB. The observed change in secreted activity levels compared to the wild-type clone indicated that the precise amino acid sequence of the intervening region, between mature IgA1 protease and the beta-core translocator domain, influences the efficacy of autoproteolytic processing. The broader specificity uncovered for the NMB IgA1 protease suggests that it could cleave a far wider range of human proteins than previously appreciated.
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Affiliation(s)
- Srdjan Vitovski
- Section of Infection, Inflammation and Immunity, Henry Wellcome Laboratories for Medical Research, The University of Sheffield School of Medicine and Biomedical Science, Sheffield, UK
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Senior BW, Woof JM. Effect of mutations in the human immunoglobulin A1 (IgA1) hinge on its susceptibility to cleavage by diverse bacterial IgA1 proteases. Infect Immun 2005; 73:1515-22. [PMID: 15731049 PMCID: PMC1064975 DOI: 10.1128/iai.73.3.1515-1522.2005] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Components of the human immunoglobulin A1 (IgA1) hinge governing sensitivity to cleavage by bacterial IgA1 proteases were investigated. Recombinant antibodies with distinct hinge mutations were constructed from a hybrid comprised of human IgA2 bearing half of the human IgA1 hinge region. This hybrid antibody and all the mutant antibodies derived from it were resistant to cleavage by the IgA1 proteases from Streptococcus oralis and Streptococcus mitis biovar 1 strains but were cleaved to various degrees by those of Streptococcus pneumoniae, some Streptococcus sanguis strains, and the type 1 and 2 IgA1 proteases of Haemophilus influenzae, Neisseria meningitidis, and Neisseria gonorrhoeae. Remarkably, those proteases that cleave a Pro-Ser peptide bond in the wild-type IgA1 hinge were able to cleave mutant antibodies lacking a Pro-Ser peptide bond in the hinge, and those that cleave a Pro-Thr peptide bond in the wild-type IgA1 hinge were able to cleave mutant antibodies devoid of a Pro-Thr peptide bond in the hinge. Thus, the enzymes can cleave alternatives to their preferred postproline peptide bond when such a bond is unavailable. Peptide sequence analysis of a representative antibody digestion product confirmed this conclusion. The presence of a cleavable peptide bond near the CH2 end of the hinge appeared to result in greater cleavage than if the scissile bond was at the CH1 end of the hinge. Proline-to-serine substitution at residue 230 in a hinge containing potentially cleavable Pro-Ser and Pro-Thr peptide bonds increased the resistance of the antibody to cleavage by many IgA1 proteases.
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Affiliation(s)
- Bernard W Senior
- Division of Pathology and Neuroscience, University of Dundee Medical School, Ninewells Hospital, Dundee, United Kingdom.
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Chintalacharuvu KR, Chuang PD, Dragoman A, Fernandez CZ, Qiu J, Plaut AG, Trinh KR, Gala FA, Morrison SL. Cleavage of the human immunoglobulin A1 (IgA1) hinge region by IgA1 proteases requires structures in the Fc region of IgA. Infect Immun 2003; 71:2563-70. [PMID: 12704129 PMCID: PMC153282 DOI: 10.1128/iai.71.5.2563-2570.2003] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2002] [Revised: 01/14/2003] [Accepted: 02/12/2003] [Indexed: 11/20/2022] Open
Abstract
Secretory immunoglobulin A (IgA) protects the mucosal surfaces against inhaled and ingested pathogens. Many pathogenic bacteria produce IgA1 proteases that cleave in the hinge of IgA1, thus separating the Fab region from the Fc region and making IgA ineffective. Here, we show that Haemophilus influenzae type 1 and Neisseria gonorrhoeae type 2 IgA1 proteases cleave the IgA1 hinge in the context of the constant region of IgA1 or IgA2m(1) but not in the context of IgG2. Both C(alpha)2 and C(alpha)3 but not C(alpha)1 are required for the cleavage of the IgA1 hinge by H. influenzae and N. gonorrhoeae proteases. While there was no difference in the cleavage kinetics between wild-type IgA1 and IgA1 containing only the first GalNAc residue of the O-linked glycans, the absence of N-linked glycans in the Fc increased the ability of the N. gonorrhoeae protease to cleave the IgA1 hinge. Taken together, these results suggest that, in addition to the IgA1 hinge, structures in the Fc region of IgA are required for the recognition and cleavage of IgA1 by the H. influenzae and N. gonorrhoeae proteases.
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Affiliation(s)
- Koteswara R Chintalacharuvu
- Department of Microbiology, Immunology and Molecular Genetics and The Molecular Biology Institute, University of California, Los Angeles, California 90095, USA.
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Affiliation(s)
- J A Thomson
- Department of Microbiology, University of Cape Town, Rondebosch, South Africa
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