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Bravo-Anaya L, Garbay B, Nando-Rodríguez J, Carvajal Ramos F, Ibarboure E, Bathany K, Xia Y, Rosselgong J, Joucla G, Garanger E, Lecommandoux S. Nucleic acids complexation with cationic elastin-like polypeptides: Stoichiometry and stability of nano-assemblies. J Colloid Interface Sci 2019; 557:777-792. [DOI: 10.1016/j.jcis.2019.09.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 09/13/2019] [Accepted: 09/16/2019] [Indexed: 02/01/2023]
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Alazzo A, Lovato T, Collins H, Taresco V, Stolnik S, Soliman M, Spriggs K, Alexander C. Structural variations in hyperbranched polymers prepared via thermal polycondensation of lysine and histidine and their effects on DNA delivery. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/jin2.36] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Ali Alazzo
- School of Pharmacy; University of Nottingham; Nottingham NG7 2RD UK
- Department of Pharmaceutics; University of Mosul; Mosul Iraq
| | - Tatiana Lovato
- School of Pharmacy; University of Nottingham; Nottingham NG7 2RD UK
| | - Hilary Collins
- School of Pharmacy; University of Nottingham; Nottingham NG7 2RD UK
| | - Vincenzo Taresco
- School of Pharmacy; University of Nottingham; Nottingham NG7 2RD UK
| | - Snjezana Stolnik
- School of Pharmacy; University of Nottingham; Nottingham NG7 2RD UK
| | - Mahmoud Soliman
- Department of Pharmaceutics; Ain Shams University; Cairo Egypt
| | - Keith Spriggs
- School of Pharmacy; University of Nottingham; Nottingham NG7 2RD UK
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Insua I, Liamas E, Zhang Z, Peacock AFA, Krachler AM, Fernandez-Trillo F. Enzyme-responsive polyion complex (PIC) nanoparticles for the targeted delivery of antimicrobial polymers. Polym Chem 2016; 7:2684-2690. [PMID: 27148427 PMCID: PMC4841106 DOI: 10.1039/c6py00146g] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 03/13/2016] [Indexed: 12/30/2022]
Abstract
Here we present new enzyme-responsive polyion complex (PIC) nanoparticles prepared from antimicrobial poly(ethylene imine) and an anionic enzyme-responsive peptide targeting Pseudomonas aeruginosa's elastase.
Here we present new enzyme-responsive polyion complex (PIC) nanoparticles prepared from antimicrobial poly(ethylene imine) and an anionic enzyme-responsive peptide targeting Pseudomonas aeruginosa's elastase. The synthetic conditions used to prepare these nanomaterials allowed us to optimise particle size and charge, and their stability under physiological conditions. We demonstrate that these enzyme responsive PIC nanoparticles are selectively degraded in the presence of P. aeruginosa elastase without being affected by other endogenous elastases. This enzyme-responsive PIC particle can exert an elastase-specific antimicrobial effect against P. aeruginosa without affecting non-pathogenic strains of these bacteria. These targeted enzyme-responsive PIC nanoparticles constitute a novel platform for the delivery of antimicrobial peptides and polymers, and can be a powerful tool in the current race against antimicrobial resistance.
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Affiliation(s)
- Ignacio Insua
- School of Chemistry , University of Birmingham , B15 2TT Birmingham , UK
| | - Evangelos Liamas
- School of Chemical Engineering , University of Birmingham , B15 2TT Birmingham , UK
| | - Zhenyu Zhang
- School of Chemical Engineering , University of Birmingham , B15 2TT Birmingham , UK
| | - Anna F A Peacock
- School of Chemistry , University of Birmingham , B15 2TT Birmingham , UK
| | - Anne Marie Krachler
- School of Biosciences , University of Birmingham , B15 2TT Birmingham , UK ; Institute of Microbiology and Infection , University of Birmingham , B15 2TT Birmingham , UK .
| | - Francisco Fernandez-Trillo
- School of Chemistry , University of Birmingham , B15 2TT Birmingham , UK ; Institute of Microbiology and Infection , University of Birmingham , B15 2TT Birmingham , UK .
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Gallon E, Matini T, Sasso L, Mantovani G, Armiñan de Benito A, Sanchis J, Caliceti P, Alexander C, Vicent MJ, Salmaso S. Triblock Copolymer Nanovesicles for pH-Responsive Targeted Delivery and Controlled Release of siRNA to Cancer Cells. Biomacromolecules 2015; 16:1924-37. [DOI: 10.1021/acs.biomac.5b00286] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elena Gallon
- Department
of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131, Padova, Italy
| | - Teresa Matini
- School
of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Luana Sasso
- School
of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Giuseppe Mantovani
- School
of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Ana Armiñan de Benito
- Centro de Investigation Principe Felipe (CIPF), Polymer Therapeutics Laboratory, Av. Eduardo Primo Yúfera 3, E-46012, Valencia, Spain
| | - Joaquin Sanchis
- Centro de Investigation Principe Felipe (CIPF), Polymer Therapeutics Laboratory, Av. Eduardo Primo Yúfera 3, E-46012, Valencia, Spain
| | - Paolo Caliceti
- Department
of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131, Padova, Italy
| | - Cameron Alexander
- School
of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Maria J. Vicent
- Centro de Investigation Principe Felipe (CIPF), Polymer Therapeutics Laboratory, Av. Eduardo Primo Yúfera 3, E-46012, Valencia, Spain
| | - Stefano Salmaso
- Department
of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131, Padova, Italy
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Mann A, Shukla V, Khanduri R, Dabral S, Singh H, Ganguli M. Linear short histidine and cysteine modified arginine peptides constitute a potential class of DNA delivery agents. Mol Pharm 2014; 11:683-96. [PMID: 24476132 DOI: 10.1021/mp400353n] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The success of gene therapy relies on the development of safe and efficient multifunctional carriers of nucleic acids that can overcome extra- and intracellular barriers, protect the nucleic acid and mediate its release at the desired site allowing gene expression. Peptides bear unique properties that are indispensable for any carrier, e.g., they can mediate DNA condensation, cellular targeting, membrane translocation, endosomal escape and nuclear localization. In an effort to design a multifunctional peptide, we have modified an arginine homopeptide R16 by replacement of seven arginines with histidines and addition of one cysteine at each end respectively to impart endosomal escape property while maintaining the DNA condensation and release balance. Addition of histidines imparts endosomal escape property to arginine homopeptide, but their arrangement with respect to arginines is more critical in controlling DNA condensation, release and transfection efficiency. Intriguingly, R5H7R4 peptide where charge/arginine is distributed in blocks is preferred for strong condensation while more efficient transfection is seen in the variants R9H7 and H4R9H3, which exhibit weak condensation and strong release. Addition of cysteine to each of these peptides further fine-tuned the condensation-release balance without application of any oxidative procedure unlike other similar systems reported in the literature. This resulted in a large increase in the transfection efficiency in all of the histidine modified peptides irrespective of the arginine and histidine positions. This series of multifunctional peptides shows comparable transfection efficiency to commercially available transfection reagent Lipofectamine 2000 at low charge ratios, with simple preparative procedure and exhibits much less toxicity.
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Affiliation(s)
- Anita Mann
- CSIR-Institute of Genomics and Integrative Biology , Mall Road (near Jubilee Hall), Delhi 110 007, India
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Matini T, Francini N, Battocchio A, Spain SG, Mantovani G, Vicent MJ, Sanchis J, Gallon E, Mastrotto F, Salmaso S, Caliceti P, Alexander C. Synthesis and characterization of variable conformation pH responsive block co-polymers for nucleic acid delivery and targeted cell entry. Polym Chem 2014. [DOI: 10.1039/c3py00744h] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pranzetti A, Mieszkin S, Iqbal P, Rawson FJ, Callow ME, Callow JA, Koelsch P, Preece JA, Mendes PM. An electrically reversible switchable surface to control and study early bacterial adhesion dynamics in real-time. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:2181-5. [PMID: 23427121 PMCID: PMC4694589 DOI: 10.1002/adma.201204880] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Indexed: 05/07/2023]
Abstract
Bacterial adhesion can be controlled by applying electrical potentials to surfaces incorporating well-spaced negatively charged 11-mercaptoundecanoic acids. When combined with electrochemical surface plasmon resonance, these dynamic surfaces become powerful for monitoring and analysing the passage between reversible and non-reversible cell adhesion, opening new opportunities to advance our understanding of cell adhesion processes.
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Affiliation(s)
- Alice Pranzetti
- School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT (UK)
| | | | | | - Frankie J. Rawson
- School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT (UK)
| | | | | | - Patrick Koelsch
- Department of Bioengineering, University of Washington, Seattle, WA 98195-1750
| | | | - Paula M. Mendes
- School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT (UK)
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9
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Alexander C, Fernandez Trillo F. Bioresponsive Polyplexes and Micelleplexes. SMART MATERIALS FOR DRUG DELIVERY 2013. [DOI: 10.1039/9781849736800-00256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The delivery of nucleic acids (NAs) is hindered by several factors, such as the size of the biomolecule (micron size for plasmid DNA), the presence of different biological barriers or the degradation of NAs. Most of these limitations are avoided by complexation with polycationic species, which collapse NAs into nanometer-sized polyplexes that can be efficiently internalized into the target cells. Because there are subtle changes in physiological conditions, such as the drop in pH at the endosome, or the increase in temperature in tumor tissue, stimuli responsive synthetic polymers are ideal candidates for the synthesis of efficient gene delivery vehicles. In this chapter, representative examples of “smart” polypexes that exploit these changes in physiological environment for the delivery of NAs are described, and the transfection efficiency of pH-, redox-, temperature- and light-responsive polyplexes is analyzed.
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Soliman M, Nasanit R, Abulateefeh SR, Allen S, Davies MC, Briggs SS, Seymour LW, Preece JA, Grabowska AM, Watson SA, Alexander C. Multicomponent Synthetic Polymers with Viral-Mimetic Chemistry for Nucleic Acid Delivery. Mol Pharm 2011; 9:1-13. [DOI: 10.1021/mp200108q] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Mahmoud Soliman
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
- Department
of Pharmaceutics,
Faculty of Pharmacy, Ain Shams University, Monazamet El Wehda El Afrikia St., El Abbassia, Cairo, Egypt
| | - Rujikan Nasanit
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K
- Department of Biotechnology, Faculty
of Engineering and Industrial Technology, Silpakorn University, Nakorn Pathom 73000, Thailand
| | | | - Stephanie Allen
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Martyn C. Davies
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Simon S. Briggs
- Department of Clinical Pharmacology, University of Oxford, Oxford OX2 6HE, U.K
| | - Leonard W. Seymour
- Department of Clinical Pharmacology, University of Oxford, Oxford OX2 6HE, U.K
| | - Jon A. Preece
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K
| | - Anna M. Grabowska
- Division of Pre-Clinical Oncology, University of Nottingham, Queens Medical Centre, Nottingham
NG7 2UH, U.K
| | - Susan A. Watson
- Division of Pre-Clinical Oncology, University of Nottingham, Queens Medical Centre, Nottingham
NG7 2UH, U.K
| | - Cameron Alexander
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
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Cajot S, Lautram N, Passirani C, Jérôme C. Design of reversibly core cross-linked micelles sensitive to reductive environment. J Control Release 2011; 152:30-6. [DOI: 10.1016/j.jconrel.2011.03.026] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Revised: 01/28/2011] [Accepted: 03/24/2011] [Indexed: 11/27/2022]
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12
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Saeed AO, Magnusson JP, Moradi E, Soliman M, Wang W, Stolnik S, Thurecht KJ, Howdle SM, Alexander C. Modular Construction of Multifunctional Bioresponsive Cell-Targeted Nanoparticles for Gene Delivery. Bioconjug Chem 2011; 22:156-68. [DOI: 10.1021/bc100149g] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Mahmoud Soliman
- Department of Pharmaceutics, Faculty
of Pharmacy, Ain Shams University, Monazamet
El Wehda El Afrikia Street, El Abbassia, Cairo, Egypt
| | - Wenxin Wang
- Network of Excellence for Functional
Biomaterials, National University of Ireland, Galway, Ireland
| | | | - Kristofer J. Thurecht
- Australian Institute for Bioengineering
and Nanotechnology (AIBN), University of Queensland, Brisbane, Queensland 4072, Australia
| | - Steven M. Howdle
- School of Pharmacy and School
of Chemistry, University of Nottingham,
University Park, Nottingham NG7 2RD, United Kingdom
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13
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Soliman M, Allen S, Davies MC, Alexander C. Responsive polyelectrolyte complexes for triggered release of nucleic acid therapeutics. Chem Commun (Camb) 2010; 46:5421-33. [DOI: 10.1039/c0cc00794c] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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14
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Ahlers JD, Belyakov IM. Strategies for optimizing targeting and delivery of mucosal HIV vaccines. Eur J Immunol 2009; 39:2657-69. [DOI: 10.1002/eji.200939269] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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