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Hayakawa Y, Matsuno M, Tanaka M, Wada A, Kitamura K, Takei O, Sasaki R, Mizukami T, Hasegawa M. Complementary DNA display selection of high-affinity peptides binding the vacuolating toxin (VacA) of Helicobacter pylori. J Pept Sci 2015; 21:710-6. [PMID: 26152929 DOI: 10.1002/psc.2795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 05/24/2015] [Accepted: 05/27/2015] [Indexed: 11/06/2022]
Abstract
Artificial peptides designed for molecular recognition of a bacterial toxin have been developed. Vacuolating cytotoxin A protein (VacA) is a major virulence factor of Helicobacter pylori, a gram-negative microaerophilic bacterium inhabiting the upper gastrointestinal tract, particularly the stomach. This study attempted to identify specific peptide sequences with high affinity for VacA using systematic directed evolution in vitro, a cDNA display method. A surface plasmon resonance-based biosensor and fluorescence correlation spectroscopy to examine binding of peptides with VacA identified a peptide (GRVNQRL) with high affinity. Cyclization of the peptide by attaching cysteine residues to both termini improved its binding affinity to VacA, with a dissociation constant (Kd ) of 58 nm. This study describes a new strategy for the development of artificial functional peptides, which are promising materials in biochemical analyses and medical applications.
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Affiliation(s)
- Yumiko Hayakawa
- Graduate School of Bioscience, Nagahama Institute of Bio-Science and Technology, Tamura 1266, Nagahama, Shiga, 526-0829, Japan
| | - Mitsuhiro Matsuno
- Graduate School of Bioscience, Nagahama Institute of Bio-Science and Technology, Tamura 1266, Nagahama, Shiga, 526-0829, Japan
| | - Makoto Tanaka
- Graduate School of Bioscience, Nagahama Institute of Bio-Science and Technology, Tamura 1266, Nagahama, Shiga, 526-0829, Japan
| | - Akihiro Wada
- Institute for Tropical Medicine, Nagasaki University, Sakamoto 1-12-4, Nagasaki, 852-8523, Japan
| | - Koichiro Kitamura
- JANUSYS Co., Ltd., Kamiaoki 3-12-18-508, Kawaguchi, Saitama, 333-0844, Japan
| | - Osamu Takei
- Lifetech Co., Ltd., Miyadera 4074, Iruma, Saitama, 358-0014, Japan
| | - Ryuzo Sasaki
- Graduate School of Bioscience, Nagahama Institute of Bio-Science and Technology, Tamura 1266, Nagahama, Shiga, 526-0829, Japan
| | - Tamio Mizukami
- Graduate School of Bioscience, Nagahama Institute of Bio-Science and Technology, Tamura 1266, Nagahama, Shiga, 526-0829, Japan
| | - Makoto Hasegawa
- Graduate School of Bioscience, Nagahama Institute of Bio-Science and Technology, Tamura 1266, Nagahama, Shiga, 526-0829, Japan
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Murai R, Nogi T, Tateoka K, Sato A. Affinity Selection of Peptide Binders with Magnetic Beads via Organic Phase Separation (MOPS). Biol Pharm Bull 2015; 38:1822-6. [DOI: 10.1248/bpb.b15-00455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Ryuichi Murai
- School of Bioscience and Biotechnology, Tokyo University of Technology
| | - Taiki Nogi
- School of Bioscience and Biotechnology, Tokyo University of Technology
| | - Komei Tateoka
- School of Bioscience and Biotechnology, Tokyo University of Technology
| | - Atsushi Sato
- School of Bioscience and Biotechnology, Tokyo University of Technology
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3
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Szardenings M. Phage display of random peptide libraries: applications, limits, and potential. J Recept Signal Transduct Res 2004; 23:307-49. [PMID: 14753295 DOI: 10.1081/rrs-120026973] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The identification of ligands from large biological libraries by phage display has now been used for almost 15 years. Most of the successful reports on high-affinity ligand identification originated from work with different antibody libraries. In contrast, the progress of applying phage display to random peptide libraries was relatively slow. However, in the last few years several improvements have led to an increasing number of published peptide ligands identified by phage display from such libraries and which exhibited good biological activity and high affinity. This review summarizes the current state and the technical progress of the application of random peptide libraries using filamentous phage for ligand identification.
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Affiliation(s)
- Michael Szardenings
- Institute of Biochemistry and Biotechnology, Technical University of Braunschweig, Braunschweig, Germany.
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Kim HY, Estes CR, Duncan AG, Wade BD, Cleary FC, Lloyd CR, Ellis WR, Powers LS. Real-time detection of microbial contamination. ACTA ACUST UNITED AC 2004; 23:122-9. [PMID: 15154268 DOI: 10.1109/memb.2004.1297183] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hea-Young Kim
- National Center for the Design of Molecular Function, Utah State University, USA
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Wang G, De J, Schoeniger JS, Roe DC, Carbonell RG. A hexamer peptide ligand that binds selectively to staphylococcal enterotoxin B: isolation from a solid phase combinatorial library. ACTA ACUST UNITED AC 2004; 64:51-64. [PMID: 15251031 DOI: 10.1111/j.1399-3011.2004.00170.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
By screening a solid-phase combinatorial peptide library, a short peptide ligand, YYWLHH, has been discovered that binds with high affinity and selectivity to staphylococcal enterotoxin B (SEB), but only weakly to other SEs that share sequence and structural homology with SEB. Using column affinity chromatography with an immobilized YYWLHH stationary phase, it was possible to separate SEB quantitatively from Staphylococcus aureus fermentation broth, a complex mixture of proteins, carbohydrates and other biomolecules. The immobilized peptide was also used to purify native SEB from a mixture containing denatured and hydrolyzed SEB, and showed little cross-reactivity with other SEs. To our knowledge this is the first report of a highly specific short peptide ligand for SEB. Such a ligand is a potential candidate to replace antibodies for detection, removal and purification strategies for SEB.
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Affiliation(s)
- G Wang
- Department of Chemical Engineering, North Carolina State University, 1017 Main Campus Drive, Centennial Campus, Partner's Building I, Suite 3200, Box 7006, Raleigh, NC 27695-7006, USA
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Mason HY, Lloyd C, Dice M, Sinclair R, Ellis W, Powers L. Taxonomic identification of microorganisms by capture and intrinsic fluorescence detection. Biosens Bioelectron 2003; 18:521-7. [PMID: 12706558 DOI: 10.1016/s0956-5663(03)00010-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Quick and accurate detection of microbial contamination is accomplished by a unique combination of leading edge technologies described in this and the accompanying article. Microbe capture chips, used with a prototype fluorescence detector, are capable of statistically sampling the environment for pathogens (including spores), identifying the specific pathogens/exotoxins, and determining cell viability where appropriate.
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Affiliation(s)
- Hea-Young Mason
- National Center for the Design of Molecular Function, Department of Electrical Engineering, Utah State University, Logan, UT 84322-4155, USA
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7
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Sato A, Sone S. A peptide mimetic of human interferon (IFN)-beta. Biochem J 2003; 371:603-8. [PMID: 12542398 PMCID: PMC1223311 DOI: 10.1042/bj20020993] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2002] [Revised: 12/19/2002] [Accepted: 01/24/2003] [Indexed: 01/03/2023]
Abstract
Type I interferons (IFNs) are cytokines that are used clinically as antiviral and antitumour agents. The interaction of IFNs with their heterodimeric type I IFN receptor comprised of IFNAR1 and IFNAR2 is a first step to inducing biological actions. Here, we describe the successful mimicry of IFN-beta by a peptide isolated by phage-display screening using a neutralizing anti-IFN-beta monoclonal antibody. The 15-mer peptide, designated SYR6, was shown to compete with IFN-beta for binding to type I IFN receptor in a concentration-dependent manner, and was shown to elicit antiviral activity on cultured cells. This antiviral activity was not eliminated in the presence of neutralizing monoclonal antibodies to IFN-alpha, -beta and -gamma, and a low concentration of soluble type I IFN receptor, suggesting that it was not due to IFN contamination or the induction of endogenous IFNs by SYR6. This peptide might be a potent agonist to provide a mechanism of activating heterodimeric cytokine receptors.
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Affiliation(s)
- Atsushi Sato
- Pharmaceutical Research Laboratories, Toray Industries Inc., 1111, Tebiro, Kamakura, Kanagawa, 248-8555, Japan.
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Miwa K, Fukuyama M, Ida N, Igarashi H, Uchiyama T. Preparation of a superantigen-adsorbing device and its superantigen removal efficacies in vitro and in vivo. Int J Infect Dis 2003; 7:21-6. [PMID: 12718806 DOI: 10.1016/s1201-9712(03)90038-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE A new superantigen-adsorbing device (SAAD) was developed, and its characteristics and efficacy in septic animals were evaluated. METHODS The SAAD was prepared by stepwise chemical modification of a polystyrene-based composite fiber reinforced with polypropylene. Adsorption affinities for several factors and the biological effect of superantigen (SAg) removal were measured in vitro. Also, superantigen-infused rabbits were treated with SAAD, and the efficacy was evaluated in vivo. RESULTS When the SAAD was evaluated for its ability to adsorb SAg in human plasma (1 ng/mL each), the adsorption rates were 74%, 76% and 85% for staphylococcal enterotoxins A, B and C, respectively, and 80% and 72% for toxic shock syndrome toxin-1 (TSST-1) and streptococcal pyrogenic exotoxin A, respectively. In addition, the SAAD showed some affinity towards other molecules, such as streptococcal pyrogenic exotoxin B, beta2-microglobulin, and vancomycin. Residual activities in whole blood samples containing TSST-1 (1 ng/mL) after incubation with the SAAD were 125 pg/mL for tumor necrosis factor alpha (TNF-alpha) production, and 359 pg/mL for interleukin-8 (IL-8) production (the initial activities: 194 pg/mL for TNF-alpha production, and 1029 pg/mL for IL-8 production). When TSST-1/lipopolysaccharide (LPS)-infused rabbits were subjected to extracorporeal blood purification with a SAAD column, 50% of the animals survived for a 14-day period after the infusion. In contrast, all control animals died within 3 days after the infusion. CONCLUSION These results indicate that the SAg-adsorbing device may be useful in treating SAg-related diseases.
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Affiliation(s)
- Keishi Miwa
- Medical Devices Research Laboratory, Pioneering Research Laboratories, Toray Industries Inc., 2-1 Sonoyama 3-chome, Otsu, Shiga 529-0842, Japan.
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Affiliation(s)
- M Dani
- TECNOGEN SCpA, Piana di Monte Verna (CE), Italy
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10
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Affiliation(s)
- M Dani
- TECNOGEN SCpA, Piana di Monte Verna (CE), Italy
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Abstract
This study investigated the potential to utilize phage-displayed peptides as reagents in sensor applications. A library of random 12-mers displayed on phage was panned against staphylococcal enterotoxin B (SEB), a causative agent of food poisoning. Nine SEB binding phage clones were isolated, all of which share the consensus sequence Trp His Lys at their amino terminus. Binding of several of these phage was shown to be inhibited when they were assayed in a competitive enzyme-linked immunosorbent assay (ELISA) format with synthesized peptide corresponding to the peptide-encoding region of one of the clones. Whole phage were labeled with the dye Cy5, and incorporated into fluoroimmunoassays. Labeled phage were able to detect SEB down to a concentration of 1.4 ng/well in a fluorescence-based immunoassay. When incorporated into an automated fluorescence-based sensing assay, Cy5-labeled phage bound to probes coated with SEB generated a robust signal of about 10,000 pA, vs a signal of 1,000 pA using a control fiber coated with streptavidin. These results demonstrate the potential for development of phage-based sensor reagents.
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Affiliation(s)
- E R Goldman
- Georgetown University Medical Center, Department of Biochemistry and Molecular Biology, Washington, DC 20007, USA
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Messmer BT, Thaler DS. C1q-binding peptides share sequence similarity with C4 and induce complement activation. Mol Immunol 2000; 37:343-50. [PMID: 11074252 DOI: 10.1016/s0161-5890(00)00063-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Two peptide motifs that bind to C1q have been identified from phage displayed libraries. A first panning cycle recovered phage that displayed a [N/S]PFxL motif. A synthetic peptide with that motif blocked those phage from binding to C1q. A second panning cycle was conducted with the [N/S]PFxL motif peptide present, leading to recovery of phage displaying a different motif, SHY. The two motifs are specific for C1q and are competed by DNA and the cognate synthetic peptide but not by immunoglobulins. Phage displayed peptide sequences containing the [N/S]PFxL have significant sequence similarity to a region of complement component C4, suggesting a possible site of interaction between C4, or one of its processed forms, and C1q. The SHY motif peptide induces C4 consumption in a hemolytic assay, suggesting that it activates C1 independent of immune complexes. This peptide may activate C1 by a mechanism similar to the beta-amyloid peptides found in Alzheimer's disease.
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Affiliation(s)
- B T Messmer
- Sackler Laboratory for Molecular Genetics and Informatics, Rockefeller University, 1230 York Ave, New York, NY 10021-6399, USA.
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