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Yu T, Xianyu Y. Array-Based Biosensors for Bacteria Detection: From the Perspective of Recognition. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006230. [PMID: 33870615 DOI: 10.1002/smll.202006230] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/18/2020] [Indexed: 05/24/2023]
Abstract
Array-based biosensors have shown as effective and powerful tools to distinguish intricate mixtures with infinitesimal differences among analytes such as nucleic acids, proteins, microorganisms, and other biomolecules. In array-based bacterial sensing, the recognition of bacteria is the initial step that can crucially influence the analytical performance of a biosensor array. Bacteria recognition as well as the signal readout and mathematical analysis are indispensable to ensure the discrimination ability of array-based biosensors. Strategies for bacteria recognition mainly include the specific interaction between biomolecules and the corresponding receptors on bacteria, the noncovalent interaction between materials and bacteria, and the specific targeting of bacterial metabolites. In this review, recent advances in array-based bacteria sensors are discussed from the perspective of bacteria recognition relying on the characteristics of different bacteria. Principles of bacteria recognition and signal readout for bacteria detection are highlighted as well as the discussion on future trends in array-based biosensors.
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Affiliation(s)
- Ting Yu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Yunlei Xianyu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
- Fuli Institute of Food Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Ningbo Research Institute, Zhejiang University, Ningbo, Zhejiang, 315100, China
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Fan X, Xu W, Gao W, Xiao H, Wu G. Opsonization of multiple drug resistant (MDR)-bacteria by antimicrobial peptide fused hepatitis B virus surface antigen (HBsAg) in vaccinated individuals. Biochem Biophys Res Commun 2021; 534:193-198. [PMID: 33280820 DOI: 10.1016/j.bbrc.2020.11.113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 11/26/2020] [Indexed: 11/16/2022]
Abstract
Vaccination evoking immunity in susceptible individuals has become the most effective solution to combat infectious diseases. The surface antigen of hepatitis B virus (HBsAg) is a mandatory vaccine for children in China. Herein, we designed an antimicrobial protein consisting of an antimicrobial peptide Thanatin at the N-terminus fused with the HBsAg at the C-terminus. The expressed Thanatin-GFP-HBsAg (TGH) quantitively bound with the anti-HBsAg antibody by ELISA, and after exposure to TGH, Gram-negative E. coli cells became fluorescencent indicating the binding of TGH with the bacterial cells. We also demonstrated that TGH could intercalated into the lipid bilayer as shown by the quartz crystal microbalance with dissipation (QCM-D) and TEM. Moreover, the TGH bound E. coli cells attracted anti-HBsAg IgG as shown by the experiments that in turn treated the E. coli cells with TGF, anti-HBsAg serum and PE labelled goat anti-mouse IgG antibodies. After supplementation with serum from HBsAg vaccinated individuals, TGH showed improved bactericidal effect in vitro. In vivo experiments showed that the mice receiving TGH vaccination show quicker clearance of MDR E. coli pretreated with TGH and better survive in comparison with groups treated with piperacillin plus subatan. In addition, anti-HBsAg serum supplementation also improved the endocytosis of TGH decorated bacteria by leukocytes. This study reported a novel solution to combat infectious pathogens based on the membrane penetrating effect of antimicrobial peptides.
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Affiliation(s)
- Xiaobo Fan
- Diagnostics Department, Medical School, Southeast University, China.
| | - Wei Xu
- Diagnostics Department, Medical School, Southeast University, China
| | - Wei Gao
- Center for Clinical Laboratory Medicine of Zhongda Hospital, Southeast University, China
| | - Han Xiao
- Diagnostics Department, Medical School, Southeast University, China
| | - Guoqiu Wu
- Center for Clinical Laboratory Medicine of Zhongda Hospital, Southeast University, China.
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Dos Santos-Silva CA, Zupin L, Oliveira-Lima M, Vilela LMB, Bezerra-Neto JP, Ferreira-Neto JR, Ferreira JDC, de Oliveira-Silva RL, Pires CDJ, Aburjaile FF, de Oliveira MF, Kido EA, Crovella S, Benko-Iseppon AM. Plant Antimicrobial Peptides: State of the Art, In Silico Prediction and Perspectives in the Omics Era. Bioinform Biol Insights 2020; 14:1177932220952739. [PMID: 32952397 PMCID: PMC7476358 DOI: 10.1177/1177932220952739] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 07/30/2020] [Indexed: 12/14/2022] Open
Abstract
Even before the perception or interaction with pathogens, plants rely on constitutively guardian molecules, often specific to tissue or stage, with further expression after contact with the pathogen. These guardians include small molecules as antimicrobial peptides (AMPs), generally cysteine-rich, functioning to prevent pathogen establishment. Some of these AMPs are shared among eukaryotes (eg, defensins and cyclotides), others are plant specific (eg, snakins), while some are specific to certain plant families (such as heveins). When compared with other organisms, plants tend to present a higher amount of AMP isoforms due to gene duplications or polyploidy, an occurrence possibly also associated with the sessile habit of plants, which prevents them from evading biotic and environmental stresses. Therefore, plants arise as a rich resource for new AMPs. As these molecules are difficult to retrieve from databases using simple sequence alignments, a description of their characteristics and in silico (bioinformatics) approaches used to retrieve them is provided, considering resources and databases available. The possibilities and applications based on tools versus database approaches are considerable and have been so far underestimated.
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Affiliation(s)
| | - Luisa Zupin
- Genetic Immunology laboratory, Institute for Maternal and Child Health-IRCCS, Burlo Garofolo, Trieste, Italy
| | - Marx Oliveira-Lima
- Departamento de Genética, Universidade Federal de Pernambuco, Recife, Brazil
| | | | | | | | - José Diogo Cavalcanti Ferreira
- Departamento de Genética, Universidade Federal de Pernambuco, Recife, Brazil.,Departamento de Genética, Instituto Federal de Pernambuco, Pesqueira, Brazil
| | | | | | | | | | - Ederson Akio Kido
- Departamento de Genética, Universidade Federal de Pernambuco, Recife, Brazil
| | - Sergio Crovella
- Genetic Immunology laboratory, Institute for Maternal and Child Health-IRCCS, Burlo Garofolo, Trieste, Italy.,Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
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Fan X, Xu H, Zhao F, Song J, Jin Y, Zhang C, Wu G. Lipid-mimicking peptide decorates erythrocyte membrane for active delivery to engrafted MDA-MB-231 breast tumour. Eur J Pharm Biopharm 2020; 152:72-84. [PMID: 32376370 DOI: 10.1016/j.ejpb.2020.04.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 04/21/2020] [Accepted: 04/29/2020] [Indexed: 01/04/2023]
Abstract
Decorating the membrane surface of vesicle carriers with proteins for targeted delivery has been achieved mainly by chemical methods. In this study, we report the rational design of a lipid-mimicking peptide for biomembrane decoration without chemical conjugation. A peptide Pm45 consisting of a hydrophobic helical tail and an anionic headgroup linked with an integrin-targeting RGD moiety was manually designed. Pm45 was synthesized and characterized, which confirmed an alpha-helix at the C-terminal. Pm45 spontaneously intercalated into the lipid bilayer as illustrated by quartz crystal of microbalance with dissipation (QCM-D), a calcein leakage assay, and TEM. The intercalation was accomplished within 10 min, and the ITC results indicated that the affinity of Pm45 binding with lipids was ~100-fold greater than that of the naturally occurring cell-penetrating peptide Ib-AMP4. In vitro cellular experiments indicated that the Pm45-decorated erythrocyte vesicles specifically bound and killed integrin αvβ3-expressing MDA-MB-231 breast cancer cells. The targeting potential of Pm45-decorated erythrocyte vesicles was further evaluated in an MDA-MB-231 xenograft nude mouse model. The in vivo therapeutic effects indicated that the targeting vesicles significantly improved the therapeutic effect of encapsulated doxorubicin (DOX) compared with that of DOX or non-targeting vesicles. NIRF imaging implied that the targeting vesicles improved the pharmacokinetics of DOX in vivo and concentrated DOX in the tumour tissue at levels >50% higher than those achieved by non-targeting liposomes. This study reports a new method for liposome decoration as an alternative to chemical conjugation.
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Affiliation(s)
- Xiaobo Fan
- Diagnostics Department, Medical School, Southeast University, China
| | - Hongbo Xu
- Diagnostics Department, Medical School, Southeast University, China
| | - Fengfeng Zhao
- Center for Clinical Laboratory Medicine of Zhongda Hospital, Southeast University, China
| | - Junlong Song
- Jiangsu Provincial Key Laboratory of Pulp and Paper Science & Technology, Nanjing Forestry University, China
| | - Yongcan Jin
- Jiangsu Provincial Key Laboratory of Pulp and Paper Science & Technology, Nanjing Forestry University, China
| | - Chen Zhang
- Center for Clinical Laboratory Medicine of Zhongda Hospital, Southeast University, China
| | - Guoqiu Wu
- Center for Clinical Laboratory Medicine of Zhongda Hospital, Southeast University, China.
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Trapani G, Caruso VCL, Cucci LM, Attanasio F, Tabbì G, Forte G, La Mendola D, Satriano C. Graphene Oxide Nanosheets Tailored With Aromatic Dipeptide Nanoassemblies for a Tuneable Interaction With Cell Membranes. Front Bioeng Biotechnol 2020; 8:427. [PMID: 32457892 PMCID: PMC7227426 DOI: 10.3389/fbioe.2020.00427] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 04/14/2020] [Indexed: 12/17/2022] Open
Abstract
Engineered graphene-based derivatives are attractive and promising candidates for nanomedicine applications because of their versatility as 2D nanomaterials. However, the safe application of these materials needs to solve the still unanswered issue of graphene nanotoxicity. In this work, we investigated the self-assembly of dityrosine peptides driven by graphene oxide (GO) and/or copper ions in the comparison with the more hydrophobic diphenylalanine dipeptide. To scrutinize the peptide aggregation process, in the absence or presence of GO and/or Cu2+, we used atomic force microscopy, circular dichroism, UV-visible, fluorescence and electron paramagnetic resonance spectroscopies. The perturbative effect by the hybrid nanomaterials made of peptide-decorated GO nanosheets on model cell membranes of supported lipid bilayers was investigated. In particular, quartz crystal microbalance with dissipation monitoring and fluorescence recovery after photobleaching techniques were used to track the changes in the viscoelastic properties and fluidity of the cell membrane, respectively. Also, cellular experiments with two model tumour cell lines at a short time of incubation, evidenced the high potential of this approach to set up versatile nanoplatforms for nanomedicine and theranostic applications.
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Affiliation(s)
- Giuseppe Trapani
- Scuola Superiore di Catania, University of Catania, Catania, Italy
| | | | - Lorena Maria Cucci
- Department of Chemical Sciences, Nano Hybrid BioInterfaces Lab (NHBIL), University of Catania, Catania, Italy
| | | | - Giovanni Tabbì
- Institute of Crystallography - National Council of Research, Catania, Italy
| | - Giuseppe Forte
- Department of Pharmaceutical Sciences, University of Catania, Catania, Italy
| | | | - Cristina Satriano
- Department of Chemical Sciences, Nano Hybrid BioInterfaces Lab (NHBIL), University of Catania, Catania, Italy
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Fan X, Xu H, Song J, Jin Y, Wink M, Wu G. Using a Membrane-Penetrating-Peptide to Anchor Ligands in the Liposome Membrane Facilitates Targeted Drug Delivery. Bioconjug Chem 2019; 31:113-122. [PMID: 31841319 DOI: 10.1021/acs.bioconjchem.9b00798] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Antimicrobial peptides (AMPs) are typical cell penetrating peptides (CPPs) that intercalate into biomembranes and exhibit broad activities. We designed a triple fusion protein consisting of an AMP, Ib-AMP4 at the N-terminus, a fluorescent GFP probe in the center, and the tumor-targeting peptide P1c at the other terminus. After purification from E. coli, the interaction between the Ib-AMP4-GFP-P1c fusion protein (IGP) and the lipid membrane was characterized. Experiments using isothermal titration calorimetry (ITC) and quartz crystal microbalance with dissipation (QCM-D) demonstrated that IGP proteins spontaneously bound the lipid bilayer with a maximal molar ratio of 1:52 (protein:lipid). Furthermore, transmission electron microscopy (TEM) confirmed that the IGP protein was present in the liposome membrane. After decoration with IGP proteins, the DOPC:DOPG liposomes were applied to cancer cells. Microscopy and flow cytometry reveal that the decorated liposomes selectively bound integrin αvβ3-positive A549 cells. In addition, compared with the common chemical conjugation method, the reported method seemed to be superior in certain aspects, such as simple sample preparation and cost-effectiveness. Next, the IGP protein was applied to decorate red blood cell (RBC) liposomes for targeted delivery in both in vitro and in vivo applications. The IGP-decorated RBC liposomes preferentially targeted integrin αvβ3 expressing A549 cancer cells. The in vivo imaging showed that IGP-decorated RBC liposomes were concentrated in tumor tissue and were primarily metabolized by the liver and kidney.
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Affiliation(s)
- Xiaobo Fan
- Diagnostics Department, Medical School , Southeast University , Nanjing 21009 , China
| | - Hongbo Xu
- Diagnostics Department, Medical School , Southeast University , Nanjing 21009 , China
| | - Junlong Song
- Jiangsu Provincial Key Laboratory of Pulp and Paper Science & Technology , Nanjing Forestry University , Nanjing 210009 , China
| | - Yongcan Jin
- Jiangsu Provincial Key Laboratory of Pulp and Paper Science & Technology , Nanjing Forestry University , Nanjing 210009 , China
| | - Michael Wink
- Institute of Pharmacy and Molecular Biology , Heidelberg University , Heidelberg 69120 , Germany
| | - Guoqiu Wu
- Center for Clinical Laboratory Medicine of Zhongda Hospital , Southeast University , Nanjing 21009 , China
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Fan X, Xu W, Han J, Jiang X, Wink M, Wu G. Antimicrobial peptide hybrid fluorescent protein based sensor array discriminate ten most frequent clinic isolates. Biochim Biophys Acta Gen Subj 2019; 1863:1158-1166. [DOI: 10.1016/j.bbagen.2019.04.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 03/14/2019] [Accepted: 04/10/2019] [Indexed: 01/30/2023]
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Neupane S, Cordoyiannis G, Renner FU, Losada-Pérez P. Real-Time Monitoring of Interactions between Solid-Supported Lipid Vesicle Layers and Short- and Medium-Chain Length Alcohols: Ethanol and 1-Pentanol. Biomimetics (Basel) 2019; 4:biomimetics4010008. [PMID: 31105194 PMCID: PMC6477617 DOI: 10.3390/biomimetics4010008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/10/2019] [Accepted: 01/16/2019] [Indexed: 11/21/2022] Open
Abstract
Lipid bilayers represent the interface between the cell and its environment, serving as model systems for the study of various biological processes. For instance, the addition of small molecules such as alcohols is a well-known process that modulates lipid bilayer properties, being considered as a reference for general anesthetic molecules. A plethora of experimental and simulation studies have focused on alcohol’s effect on lipid bilayers. Nevertheless, most studies have focused on lipid membranes formed in the presence of alcohols, while the effect of n-alcohols on preformed lipid membranes has received much less research interest. Here, we monitor the real-time interaction of short-chain alcohols with solid-supported vesicles of dipalmitoylphosphatidylcholine (DPPC) using quartz crystal microbalance with dissipation monitoring (QCM-D) as a label-free method. Results indicate that the addition of ethanol at different concentrations induces changes in the bilayer organization but preserves the stability of the supported vesicle layer. In turn, the addition of 1-pentanol induces not only changes in the bilayer organization, but also promotes vesicle rupture and inhomogeneous lipid layers at very high concentrations.
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Affiliation(s)
- Shova Neupane
- Institute for Materials Research (IMO), Hasselt University, 3590 Diepenbeek, Belgium.
- IMEC vzw. Division IMOMEC, 3590 Diepenbeek, Belgium.
| | - George Cordoyiannis
- Faculty for Industrial Engineering, 8000 Novo Mesto, Slovenia.
- Biomolecular Physics Laboratory, National Centre for Scientific Research "Demokritos", 15310 Aghia Paraskevi, Greece.
| | - Frank Uwe Renner
- Institute for Materials Research (IMO), Hasselt University, 3590 Diepenbeek, Belgium.
- IMEC vzw. Division IMOMEC, 3590 Diepenbeek, Belgium.
| | - Patricia Losada-Pérez
- Soft Matter Physics Laboratory, Physics Department, Université Libre de Bruxelles (ULB), Campus de La Plaine, CP223, Boulevard du Triomphe, 1050 Brussels, Belgium.
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