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Bai Y, Zhang W, Zheng W, Meng XZ, Duan Y, Zhang C, Chen F, Wang KJ. A 14-amino acid cationic peptide Bolespleenin 334-347 from the marine fish mudskipper Boleophthalmus pectinirostris exhibiting potent antimicrobial activity and therapeutic potential. Biochem Pharmacol 2024; 226:116344. [PMID: 38852647 DOI: 10.1016/j.bcp.2024.116344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 06/04/2024] [Accepted: 06/06/2024] [Indexed: 06/11/2024]
Abstract
Antimicrobial peptides (AMPs) are an important component of innate immunity in both vertebrates and invertebrates, and some of the unique characteristics of AMPs are usually associated with their living environment. The marine fish, mudskipper Boleophthalmus pectinirostris, usually live amphibiously in intertidal environments that are quite different from other fish species, which would be an exceptional source of new AMPs. In the study, an AMP named Bolespleenin334-347 was identified, which was a truncated peptide derived from a new functional gene found in B. pectinirostris, that was up-regulated in response to bacterial challenge. Bolespleenin334-347 had only 14 amino acid residues, including five consecutive arginine residues. It was found that the peptide had broad-spectrum antibacterial activity, good thermal stability and sodium ion tolerance. Bolespleenin334-347 killed Acinetobacter baumannii and Staphylococcus aureus by disrupting the structural integrity of the bacterial membrane, leading to leakage of the cellular contents, and inducing accumulation of bacterial endogenous reactive oxygen species (ROS). In addition, Bolespleenin334-347 effectively inhibited biofilm formation of A. baumannii and S. aureus and long-term treatment did not lead to the development of resistance. Importantly, Bolespleenin334-347 maintained stable activity against clinically multi-drug resistant bacterial strains. In addition, it was noteworthy that Bolespleenin334-347 showed superior efficacy to LL-37 and vancomycin in a constructed mouse model of MRSA-induced superficial skin infections, as evidenced by a significant reduction in bacterial load and more favorable wound healing. This study provides an effective antimicrobial agent for topical skin infections with potential therapeutic efficacy for infections with drug-resistant bacteria, including MRSA.
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Affiliation(s)
- Yuqi Bai
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China
| | - Weibin Zhang
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China
| | - Wenbin Zheng
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China
| | - Xin-Zhan Meng
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China
| | - Yingyi Duan
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China
| | - Chang Zhang
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China
| | - Fangyi Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China; State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China; Fujian Innovation Research Institute for Marine Biological Antimicrobial Peptide Industrial Technology, College of Ocean & Earth Sciences, Xiamen University, Xiamen, China.
| | - Ke-Jian Wang
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China; State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, College of Ocean & Earth Sciences, Xiamen University, Xiamen, Fujian, China; Fujian Innovation Research Institute for Marine Biological Antimicrobial Peptide Industrial Technology, College of Ocean & Earth Sciences, Xiamen University, Xiamen, China.
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Klug J, Berberián MV, López Martí JM, Mayorga LS, Del Pópolo MG. Membrane Binding Strength vs Pore Formation Cost─What Drives the Membrane Permeation of Nanoparticles Coated with Cell-Penetrating Peptides? J Phys Chem B 2024; 128:937-948. [PMID: 38232319 DOI: 10.1021/acs.jpcb.3c06461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Cell-penetrating peptides (CPPs) enable the transport of nanoparticles through cell membranes. Using molecular simulations, we conduct an in-depth investigation into the thermodynamic forces governing the passive translocation of CPP-coated nanoparticles across lipid bilayers, contrasting their behavior with that of bare particles to dissect the contribution of the peptides. Our analysis unveils a distinctive two-stage translocation mechanism, where the adsorption energy of the particles overcomes the cost of forming a hydrophilic transmembrane pore. Proper evaluation of the translocation mechanisms is only possible when using two reaction coordinates, in particular, one that explicitly includes the density of the lipids on the binding site of the particle. An analysis of adsorption and activation free energies in terms of a simple kinetic model provides a clearer understanding of the CPP effect. Experimental validation using nonendocytic cells confirms the superior membrane permeation of CPP-coated particles. Our findings have implications for the rational design of more efficient cell-permeating particles.
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Affiliation(s)
- Joaquín Klug
- Department of Life Sciences, Faculty of Sciences, Atlantic Technological University, ATU Sligo, Ash Lane, Sligo F91 YW50, Ireland
| | - María Victoria Berberián
- Instituto de Histología y Embriología de Mendoza (IHEM) CONICET/UNCUYO. Centro Universitario, Mendoza M5502JMA, Argentina
- Instituto Interdisciplinario de Ciencias Básicas (ICB)─CONICET/UNCUYO, Padre Jorge Contreras 1300, Mendoza CP5500, Argentina
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Padre Jorge Contreras 1300, Mendoza CP5500, Argentina
| | - Jesús M López Martí
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Padre Jorge Contreras 1300, Mendoza CP5500, Argentina
| | - Luis S Mayorga
- Instituto de Histología y Embriología de Mendoza (IHEM) CONICET/UNCUYO. Centro Universitario, Mendoza M5502JMA, Argentina
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Padre Jorge Contreras 1300, Mendoza CP5500, Argentina
| | - Mario G Del Pópolo
- Instituto Interdisciplinario de Ciencias Básicas (ICB)─CONICET/UNCUYO, Padre Jorge Contreras 1300, Mendoza CP5500, Argentina
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Padre Jorge Contreras 1300, Mendoza CP5500, Argentina
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3
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Castelletto V, de Mello L, Arfara F, Iatrou H, Seitsonen J, Hamley IW. Influence of polymer molar mass and mixture stoichiometry on polyelectrolyte complexes of poly(l-arginine) and Poly(l-glutamic acid). POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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4
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Hamal P, Subasinghege Don V, Nguyenhuu H, Ranasinghe JC, Nauman JA, McCarley RL, Kumar R, Haber LH. Influence of Temperature on Molecular Adsorption and Transport at Liposome Surfaces Studied by Molecular Dynamics Simulations and Second Harmonic Generation Spectroscopy. J Phys Chem B 2021; 125:10506-10513. [PMID: 34495664 PMCID: PMC8474114 DOI: 10.1021/acs.jpcb.1c04263] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A fundamental understanding of the kinetics and thermodynamics of chemical interactions at the phospholipid bilayer interface is crucial for developing potential drug-delivery applications. Here we use molecular dynamics (MD) simulations and surface-sensitive second harmonic generation (SHG) spectroscopy to study the molecular adsorption and transport of a small organic cation, malachite green (MG), at the surface of 1,2-dioleoyl-sn-glycero-3-phospho-(1'-rac-glycerol) (DOPG) liposomes in water at different temperatures. The temperature-dependent adsorption isotherms, obtained by SHG measurements, provide information on adsorbate concentration, free energy of adsorption, and associated changes in enthalpy and entropy, showing that the adsorption process is exothermic, resulting in increased overall entropy. Additionally, the molecular transport kinetics are found to be more rapid under higher temperatures. Corresponding MD simulations are used to calculate the free energy profiles of the adsorption and the molecular orientation distributions of MG at different temperatures, showing excellent agreement with the experimental results.
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Affiliation(s)
- Prakash Hamal
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, United States
| | - Visal Subasinghege Don
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, United States
| | - Huy Nguyenhuu
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, United States
| | - Jeewan C Ranasinghe
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, United States
| | - Julia A Nauman
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, United States
| | - Robin L McCarley
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, United States
| | - Revati Kumar
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, United States
| | - Louis H Haber
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, United States
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5
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Via MA, Wilke N, Mayorga LS, Del Pópolo MG. Surface charge density and fatty acids enhance the membrane permeation rate of CPP-cargo complexes. SOFT MATTER 2020; 16:9890-9898. [PMID: 33020785 DOI: 10.1039/d0sm00673d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The CPP-effect makes reference to the process by which the membrane translocation rate of a cargo is enhanced by chemical functionalization with cell-penetrating peptides (CPPs). In this work we combine a simple kinetic model with free-energy calculations to explore the energetic basis of the CPP-effect. Two polyglicines are selected as model hydrophilic cargoes, and nona-arginine as a prototypical CPP. We assess the cargo carrying efficiency of nona-arginine by comparing the adsorption and insertion energies of the cargoes, the cargo-free CPPs, and the CPP-cargo complexes, into lipid membranes of varying composition. We also analyze the effect of modifying the type and concentration of anionic lipids, and the implication of these factors on the translocation rate of the CPP-cargo complex. Of particular interest is the evaluation of the catalytic role of palmitic acid (palmitate) as a promoter of the CPP-effect. We also analyse the influence of the size of the cargo on the membrane adsorption and insertion energies. Our results show that the efficiency of nona-arginine as a transmembrane carrier of simple hydrophilic molecules is modulated by the size of the cargo, and is strongly enhanced by increasing the concentration of anionic lipids and of ionized fatty acids in the membrane.
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Affiliation(s)
- Matías A Via
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, CP5500, Argentina.
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6
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Development of lipid membrane based assays to accurately predict the transfection efficiency of cell-penetrating peptide-based gene nanoparticles. Int J Pharm 2020; 580:119221. [DOI: 10.1016/j.ijpharm.2020.119221] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/24/2020] [Accepted: 03/08/2020] [Indexed: 12/24/2022]
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7
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Ramírez PG, Del Pópolo MG, Vila JA, Longo GS. Thermodynamics of cell penetrating peptides on lipid membranes: sequence and membrane acidity regulate surface binding. Phys Chem Chem Phys 2020; 22:23399-23410. [DOI: 10.1039/d0cp02770g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Acidic lipids respond to pH in ways that fully promote or deplete the surface accumulation of cell penetrating peptides.
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Affiliation(s)
- Pedro G. Ramírez
- Instituto de Matemática Aplicada San Luis (IMASL)
- UNSL-CONICET
- San Luis
- Argentina
| | - Mario G. Del Pópolo
- Instituto Interdisciplinario de Ciencias Básicas (ICB-CONICET) & Facultad de Ciencias Exactas y Naturales (FCEN-UNCuyo)
- Mendoza
- Argentina
| | - Jorge A. Vila
- Instituto de Matemática Aplicada San Luis (IMASL)
- UNSL-CONICET
- San Luis
- Argentina
| | - Gabriel S. Longo
- Instituto de Investigaciones Fisicoquímicas
- Teóricas y Aplicadas (INIFTA)
- UNLP-CONICET
- La Plata
- Argentina
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8
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Kanwa N, De SK, Maity A, Chakraborty A. Interaction of aliphatic amino acids with zwitterionic and charged lipid membranes: hydration and dehydration phenomena. Phys Chem Chem Phys 2020; 22:3234-3244. [DOI: 10.1039/c9cp06188f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aliphatic amino acids interact differently in order to induce gelation or fluidization in zwitterionic and charged lipid membranes as a result of hydration or dehydration of the membrane surface.
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Affiliation(s)
- Nishu Kanwa
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
| | - Soumya Kanti De
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
| | - Avijit Maity
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
| | - Anjan Chakraborty
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
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9
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Ramírez PG, Del Pópolo MG, Vila JA, Szleifer I, Longo GS. Adsorption and insertion of polyarginine peptides into membrane pores: The trade-off between electrostatics, acid-base chemistry and pore formation energy. J Colloid Interface Sci 2019; 552:701-711. [PMID: 31176053 DOI: 10.1016/j.jcis.2019.05.087] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/24/2019] [Accepted: 05/25/2019] [Indexed: 12/21/2022]
Abstract
The mechanism that arginine-rich cell penetrating peptides (ARCPPs) use to translocate lipid membranes is not entirely understood. In the present work, we develop a molecular theory that allows to investigate the adsorption and insertion of ARCPPs on membranes bearing hydrophilic pores. This method accounts for size, shape, conformation, protonation state and charge distribution of the peptides; it also describes the state of protonation of acidic membrane lipids. We present a systematic investigation of the effect of pore size, peptide concentration and sequence length on the extent of peptide adsorption and insertion into the pores. We show that adsorption on the intact (non-porated) lipid membrane plays a key role on peptide translocation. For peptides shorter than nona-arginine, adsorption on the intact membrane increases significantly with chain length, but it saturates for longer peptides. However, this adsorption behavior only occurs at relatively low peptide concentrations; increasing peptide concentration favors adsorption of the shorter molecules. Adsorption of longer peptides increases the intact membrane negative charge as a result of further deprotonation of acidic lipids. Peptide insertion into the pores depends non-monotonically on pore radius, which reflects the short range nature of the effective membrane-peptide interactions. The size of the pore that promotes maximum adsorption depends on the peptide chain length. Peptide translocation is a thermally activated process, so we complement our thermodynamic approach with a simple kinetic model that allows to rationalize the ARCPPs translocation rate in terms of the free energy gain of adsorption, and the energy cost of creating a transmembrane pore with peptides in it. Our results indicate that strategies to improve translocation efficiency should focus on enhancing peptide adsorption.
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Affiliation(s)
- Pedro G Ramírez
- Instituto de Matemática Aplicada San Luis (IMASL), UNSL-CONICET, San Luis, Argentina
| | - Mario G Del Pópolo
- IICB-CONICET & Facultad de Ciencias Exactas y Naturales (FCEN), UNCuyo, Mendoza, Argentina
| | - Jorge A Vila
- Instituto de Matemática Aplicada San Luis (IMASL), UNSL-CONICET, San Luis, Argentina
| | - I Szleifer
- Department of Biomedical Engineering, Department of Chemistry and Chemistry of Life Processes Institute, Northwestern University, Evanston IL, USA
| | - Gabriel S Longo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), UNLP-CONICET, La Plata, Argentina.
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10
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Ohgita T, Takechi-Haraya Y, Nadai R, Kotani M, Tamura Y, Nishikiori K, Nishitsuji K, Uchimura K, Hasegawa K, Sakai-Kato K, Akaji K, Saito H. A novel amphipathic cell-penetrating peptide based on the N-terminal glycosaminoglycan binding region of human apolipoprotein E. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2019; 1861:541-549. [DOI: 10.1016/j.bbamem.2018.12.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/17/2018] [Accepted: 12/13/2018] [Indexed: 11/15/2022]
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11
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Yeast Surface Display and Cell Sorting of Antigen-Binding Fc Fragments. Methods Mol Biol 2019. [PMID: 30737746 DOI: 10.1007/978-1-4939-9024-5_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Since the introduction of the yeast display platform, this method has increasingly gained popularity for the discovery and affinity maturation of antibodies and other protein scaffolds intended for antigen recognition. Yeast display is particularly well suited for the selection of antigen-binding Fc fragments (Fcabs) as it allows rapid combinatorial library construction via gap repair-driven homologous recombination and an efficient display of a glycosylated Fc able to interact with Fcγ receptors. Apart from expression-related normalization, isolation of properly folded Fcabs can be guided efficiently by simultaneous staining with ligands such as protein A, FcγRI, or the conformation-sensitive anti-FigCH2 antibody, whose binding is critically dependent on the integrity of the Fc structure. The particular properties of the Fcab scaffold, such as its homodimeric state which can promote binding to multiple antigen molecules, require modifications of traditional affinity maturation strategies. Preferred to equilibrium selections are kinetically driven antigen selections, designed to specifically influence the binding off-rate, which in many cases augments the desired biological effect. A simple design of a yeast-displayed heterodimeric Fc fragment is described and can be used as a general guideline for affinity selection of Fcabs with an asymmetric binding site. Overall, this chapter underlines the importance of the versatile yeast display technique for the optimization of the novel Fcab scaffold for antigen recognition.
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12
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Ghosh S, Panja P, Dalal C, Jana NR. Arginine-Terminated, Chemically Designed Nanoparticle for Direct Cell Translocation. ACS APPLIED BIO MATERIALS 2018; 2:339-348. [DOI: 10.1021/acsabm.8b00617] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Santu Ghosh
- Centre for Advanced Materials and School of Materials Science, Indian Association for the Cultivation of Science, Kolkata 700 032, India
| | - Prasanta Panja
- Centre for Advanced Materials and School of Materials Science, Indian Association for the Cultivation of Science, Kolkata 700 032, India
| | - Chumki Dalal
- Centre for Advanced Materials and School of Materials Science, Indian Association for the Cultivation of Science, Kolkata 700 032, India
| | - Nikhil R. Jana
- Centre for Advanced Materials and School of Materials Science, Indian Association for the Cultivation of Science, Kolkata 700 032, India
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13
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Via MA, Klug J, Wilke N, Mayorga LS, Del Pópolo MG. The interfacial electrostatic potential modulates the insertion of cell-penetrating peptides into lipid bilayers. Phys Chem Chem Phys 2018; 20:5180-5189. [PMID: 29393934 DOI: 10.1039/c7cp07243k] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cell-penetrating peptides (CPP) are short sequences of cationic amino-acids that show a surprising ability to traverse lipid bilayers. CPP are considered to be some of the most effective vectors to introduce membrane-impermeable cargos into cells, but the molecular basis of the membrane translocation mechanisms and its dependence on relevant membrane physicochemical properties have yet to be fully determined. In this paper we resort to Molecular Dynamics simulations and experiments to investigate how the electrostatic potential across the lipid/water interface affects the insertion of hydrophilic and amphipathic CPP into two-dimensional lipid structures. Simulations are used to quantify the effect of the transmembrane potential on the free-energy profile associated with the transfer of the CPP across a neutral lipid bilayer. It is found that the electrostatic bias has a relatively small effect on the binding of the peptides to the membrane surface, but that it significantly lowers the permeation barrier. A charge compensation mechanism, arising from the segregation of counter-ions while the peptide traverses the membrane, determines the shape and symmetry of the free-energy curves and underlines relevant mechanistic considerations. Langmuir monolayer experiments performed with a variety of amphiphiles model the incorporation of the CPP into the external membrane leaflet. It is shown that the dipole potential of the monolayer controls the extent of penetration of the CPP into the lipid aggregate, to a greater degree than its surface charge.
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Affiliation(s)
- Matías A Via
- CONICET & Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, CP5500, Argentina.
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14
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Islam MZ, Sharmin S, Moniruzzaman M, Yamazaki M. Elementary processes for the entry of cell-penetrating peptides into lipid bilayer vesicles and bacterial cells. Appl Microbiol Biotechnol 2018. [DOI: 10.1007/s00253-018-8889-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Ivashkov OV, Sybachin AV, Efimova AA, Orlov VN, Pergushov DV, Schmalz H, Yaroslavov AA. Composition and properties of complexes between anionic liposomes and diblock copolymers with cationic and poly(ethylene oxide) blocks. POLYM INT 2017. [DOI: 10.1002/pi.5431] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Oleg V Ivashkov
- Department of Chemistry; MV Lomonosov Moscow State University; Moscow Russia
| | - Andrey V Sybachin
- Department of Chemistry; MV Lomonosov Moscow State University; Moscow Russia
| | - Anna A Efimova
- Department of Chemistry; MV Lomonosov Moscow State University; Moscow Russia
| | - Viktor N Orlov
- Research Institute of Physico-Chemical Biology; MV Lomonosov Moscow State University; Moscow Russia
| | - Dmitry V Pergushov
- Department of Chemistry; MV Lomonosov Moscow State University; Moscow Russia
| | - Holger Schmalz
- Makromolekulare Chemie II; Universität Bayreuth; Bayreuth Germany
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16
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Takechi-Haraya Y, Aki K, Tohyama Y, Harano Y, Kawakami T, Saito H, Okamura E. Glycosaminoglycan Binding and Non-Endocytic Membrane Translocation of Cell-Permeable Octaarginine Monitored by Real-Time In-Cell NMR Spectroscopy. Pharmaceuticals (Basel) 2017; 10:ph10020042. [PMID: 28420127 PMCID: PMC5490399 DOI: 10.3390/ph10020042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 03/27/2017] [Accepted: 04/12/2017] [Indexed: 12/13/2022] Open
Abstract
Glycosaminoglycans (GAGs), which are covalently-linked membrane proteins at the cell surface have recently been suggested to involve in not only endocytic cellular uptake but also non-endocytic direct cell membrane translocation of arginine-rich cell-penetrating peptides (CPPs). However, in-situ comprehensive observation and the quantitative analysis of the direct membrane translocation processes are challenging, and the mechanism therefore remains still unresolved. In this work, real-time in-cell NMR spectroscopy was applied to investigate the direct membrane translocation of octaarginine (R8) into living cells. By introducing 4-trifluoromethyl-l-phenylalanine to the N terminus of R8, the non-endocytic membrane translocation of 19F-labeled R8 (19F-R8) into a human myeloid leukemia cell line was observed at 4 °C with a time resolution in the order of minutes. 19F NMR successfully detected real-time R8 translocation: the binding to anionic GAGs at the cell surface, followed by the penetration into the cell membrane, and the entry into cytosol across the membrane. The NMR concentration analysis enabled quantification of how much of R8 was staying in the respective translocation processes with time in situ. Taken together, our in-cell NMR results provide the physicochemical rationale for spontaneous penetration of CPPs in cell membranes.
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Affiliation(s)
- Yuki Takechi-Haraya
- Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, 7-2-1 Kamiohno, Himeji 670-8524, Japan.
| | - Kenzo Aki
- Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, 7-2-1 Kamiohno, Himeji 670-8524, Japan.
| | - Yumi Tohyama
- Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, 7-2-1 Kamiohno, Himeji 670-8524, Japan.
| | - Yuichi Harano
- Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, 7-2-1 Kamiohno, Himeji 670-8524, Japan.
| | - Toru Kawakami
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Hiroyuki Saito
- Department of Biophysical Chemistry, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan.
| | - Emiko Okamura
- Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, 7-2-1 Kamiohno, Himeji 670-8524, Japan.
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Lee MW, Han M, Bossa GV, Snell C, Song Z, Tang H, Yin L, Cheng J, May S, Luijten E, Wong GCL. Interactions between Membranes and "Metaphilic" Polypeptide Architectures with Diverse Side-Chain Populations. ACS NANO 2017; 11:2858-2871. [PMID: 28212487 DOI: 10.1021/acsnano.6b07981] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
At physiological conditions, most proteins or peptides can fold into relatively stable structures that present on their molecular surfaces specific chemical patterns partially smeared out by thermal fluctuations. These nanoscopically defined patterns of charge, hydrogen bonding, and/or hydrophobicity, along with their elasticity and shape stability (folded proteins have Young's moduli of ∼1 × 108 Pa), largely determine and limit the interactions of these molecules, such as molecular recognition and allosteric regulation. In this work, we show that the membrane-permeating activity of antimicrobial peptides (AMPs) and cell-penetrating peptides (CPPs) can be significantly enhanced using prototypical peptides with "molten" surfaces: metaphilic peptides with quasi-liquid surfaces and adaptable shapes. These metaphilic peptides have a bottlebrush-like architecture consisting of a rigid helical core decorated with mobile side chains that are terminated by cationic or hydrophobic groups. Computer simulations show that these flexible side chains can undergo significant rearrangement in response to different environments, giving rise to adaptable surface chemistry of the peptide. This quality makes it possible to control their hydrophobicity over a broad range while maintaining water solubility, unlike many AMPs and CPPs. Thus, we are able to show how the activity of these peptides is amplified by hydrophobicity and cationic charge, and rationalize these results using a quantitative mean-field theory. Computer simulations show that the shape-changing properties of the peptides and the resultant adaptive presentation of chemistry play a key enabling role in their interactions with membranes.
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Affiliation(s)
| | | | - Guilherme Volpe Bossa
- Department of Physics, North Dakota State University , Fargo, North Dakota 58108, United States
| | - Carly Snell
- Department of Physics, North Dakota State University , Fargo, North Dakota 58108, United States
| | - Ziyuan Song
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Haoyu Tang
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Lichen Yin
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Jianjun Cheng
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Sylvio May
- Department of Physics, North Dakota State University , Fargo, North Dakota 58108, United States
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18
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Astrada S, Gomez Y, Barrera E, Obal G, Pritsch O, Pantano S, Vallespí MG, Bollati-Fogolín M. Comparative analysis reveals amino acids critical for anticancer activity of peptide CIGB-552. J Pept Sci 2017; 22:711-722. [PMID: 27933724 DOI: 10.1002/psc.2934] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 10/07/2016] [Accepted: 10/11/2016] [Indexed: 12/29/2022]
Abstract
Because of resistance development by cancer cells against current anticancer drugs, there is a considerable interest in developing novel antitumor agents. We have previously demonstrated that CIGB-552, a novel cell-penetrating synthetic peptide, was effective in reducing tumor size and increasing lifespan in tumor-bearing mice. Studies of protein-peptide interactions have shown that COMMD1 protein is a major mediator of CIGB-552 antitumor activity. Furthermore, a typical serine-protease degradation pattern for CIGB-552 in BALB/c mice serum was identified, yielding peptides which differ from CIGB-552 in size and physical properties. In the present study, we show the results obtained from a comparative analysis between CIGB-552 and its main metabolites regarding physicochemical properties, cellular internalization, and their capability to elicit apoptosis in MCF-7 cells. None of the analyzed metabolites proved to be as effective as CIGB-552 in promoting apoptosis in MCF-7. Taking into account these results, it seemed important to examine their cell-penetrating capacity and interaction with COMMD1. We show that internalization, a lipid binding-dependent process, is impaired as well as metabolite-COMMD1 interaction, key component of the apoptotic mechanism. Altogether, our results suggest that features conferred by the amino acid sequence are decisive for CIGB-552 biological activity, turning it into the minimal functional unit. Copyright © 2016 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- Soledad Astrada
- Cell Biology Unit, Institut Pasteur de Montevideo, Mataojo 2020, 11400, Montevideo, Uruguay
| | - Yolanda Gomez
- Pharmaceutical Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Exequiel Barrera
- Biomolecular Simulations, Institut Pasteur Montevideo, Montevideo, Uruguay
| | - Gonzalo Obal
- Protein Biophysics Unit, Institut Pasteur Montevideo, Montevideo, Uruguay.,Departamento de Inmunobiología, Facultad de Medicina, Universidad de la República, Avenida General Flores 2125, 11800, Montevideo, Uruguay
| | - Otto Pritsch
- Protein Biophysics Unit, Institut Pasteur Montevideo, Montevideo, Uruguay
| | - Sergio Pantano
- Biomolecular Simulations, Institut Pasteur Montevideo, Montevideo, Uruguay
| | - Maribel G Vallespí
- Pharmaceutical Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
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19
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Miura N, Akita H, Tateshita N, Nakamura T, Harashima H. Modifying Antigen-Encapsulating Liposomes with KALA Facilitates MHC Class I Antigen Presentation and Enhances Anti-tumor Effects. Mol Ther 2017; 25:1003-1013. [PMID: 28236573 DOI: 10.1016/j.ymthe.2017.01.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 01/20/2017] [Accepted: 01/23/2017] [Indexed: 12/20/2022] Open
Abstract
For a successful anti-cancer vaccine, antigen presentation on the major histocompatibility complex (MHC) class I is a requirement. To accomplish this, an antigen must be delivered to the cytoplasm by overcoming the endosome/lysosome. We previously reported that a lipid nanoparticle modified with a KALA peptide (WEAKLAKALAKALAKHLAKALAKALKA), an α-helical cationic peptide, permits the encapsulated pDNA to be efficiently delivered to the cytoplasm in bone marrow-derived dendritic cells (BMDCs). Herein, we report on the use of KALA-modified liposomes as an antigen carrier, in an attempt to induce potent antigen-specific cellular immunity. The subcutaneous injection of KALA-modified ovalbumin (OVA)-encapsulating liposomes (KALA-OVA-LPs) elicited a much more potent OVA-specific cytotoxic T lymphocyte activity and anti-tumor effect in comparison with particles that were modified with octa-arginine (R8), a cell-penetrating peptide (R8-OVA-LPs). In addition, the numbers of OVA-specific CD8+ T cells were increased by immunization the KALA-OVA-LPs. The treatment of BMDCs with KALA-OVA-LPs induced a substantial MHC class I antigen presentation. Furthermore, the acidic pH-dependent membrane destabilization activity of KALA-OVA-LPs strongly suggests that they are able to escape from endosomes/lysosomes and thereby deliver their cargos to the cytoplasm. Collectively, the KALA-modified liposome is a potential antigen delivery platform for use as a protein vaccine.
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Affiliation(s)
- Naoya Miura
- Department of Molecular Design of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita 12, Nishi 6, Kita-ku, Sapporo City, Hokkaido 060-0812, Japan
| | - Hidetaka Akita
- Laboratory of Pharmacology and Toxicology, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 263-8675, Japan.
| | - Naho Tateshita
- Laboratory of Pharmacology and Toxicology, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 263-8675, Japan
| | - Takashi Nakamura
- Department of Molecular Design of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita 12, Nishi 6, Kita-ku, Sapporo City, Hokkaido 060-0812, Japan
| | - Hideyoshi Harashima
- Department of Molecular Design of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita 12, Nishi 6, Kita-ku, Sapporo City, Hokkaido 060-0812, Japan.
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20
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Waqas M, Lee HM, Kim J, Telling G, Kim JK, Kim DH, Ryou C. Effect of poly-L-arginine in inhibiting scrapie prion protein of cultured cells. Mol Cell Biochem 2017; 428:57-66. [PMID: 28063003 DOI: 10.1007/s11010-016-2916-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 12/21/2016] [Indexed: 11/26/2022]
Abstract
Biological effect of poly-L-arginine (PLR), the linear homopolymer comprised of L-arginine, was investigated to determine the activity of suppressing prions. PLR decreased the level of scrapie prion protein (PrPSc) in cultured cells permanently infected with prions in a concentration-dependent manner. The PrPSc inhibition efficacy of PLR was greater than that of another prion-suppressant poly-L-lysine (PLK) in a molecular mass-dependent fashion. The effective concentration of PLR to inhibit prions was achieved safely below the cytotoxic concentrations, and overall cytotoxicity of PLR was similar to that of PLK. PLR did not alter the cellular prion protein (PrPC) level and was unable to change the states of preformed recombinant PrP aggregates and PrPSc from prion-infected cells. These data eliminate the possibility that the action mechanism of PLR is through removal of PrPC and pre-existing PrPSc. However, PLR formed complexes with plasminogen that stimulates prion propagation via conversion of PrPC to the misfolded isoform, PrPSc. The plasminogen-PLR complex demonstrated the greater positive surface charge values than the similar complex with PLK, raising the possibility that PLR interferes with the role of cofactor for PrPSc generation better than PLK.
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Affiliation(s)
- Muhammad Waqas
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Hye-Mi Lee
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Jeeyoung Kim
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Glenn Telling
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA
| | - Jin-Ki Kim
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Dae-Hwan Kim
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Chongsuk Ryou
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Republic of Korea.
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21
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Ansari AS, Santerre PJ, Uludağ H. Biomaterials for polynucleotide delivery to anchorage-independent cells. J Mater Chem B 2017; 5:7238-7261. [DOI: 10.1039/c7tb01833a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Comparison of various chemical vectors used for polynucleotide delivery to mammalian anchorage-independent cells.
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Affiliation(s)
- Aysha S. Ansari
- Department of Chemical & Materials Engineering
- Faculty of Engineering
- University of Alberta
- Edmonton
- Canada
| | - Paul J. Santerre
- Institute of Biomaterials & Biomedical Engineering
- University of Toronto
- Toronto
- Canada
| | - Hasan Uludağ
- Department of Chemical & Materials Engineering
- Faculty of Engineering
- University of Alberta
- Edmonton
- Canada
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22
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Uda RM, Kato Y, Takei M. Photo-triggered release from liposomes without membrane solubilization, based on binding to poly(vinyl alcohol) carrying a malachite green moiety. Colloids Surf B Biointerfaces 2016; 146:716-21. [DOI: 10.1016/j.colsurfb.2016.07.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 05/31/2016] [Accepted: 07/06/2016] [Indexed: 01/25/2023]
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23
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He XC, Qu ZG, Xu F. Simulation study of interaction mechanism between peptide and asymmetric membrane. MOLECULAR SIMULATION 2016. [DOI: 10.1080/08927022.2016.1228105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- X. C. He
- Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, P.R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi’an Jiaotong University, Xi’an, P.R. China
| | - Z. G. Qu
- Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, P.R. China
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi’an Jiaotong University, Xi’an, P.R. China
| | - F. Xu
- Bioinspired Engineering and Biomechanics Center (BEBC), Xi’an Jiaotong University, Xi’an, P.R. China
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, P.R. China
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24
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Ishigami T, Tauchi A, Suga K, Umakoshi H. Effect of Boundary Edge in DOPC/DPPC/Cholesterol Liposomes on Acceleration of l-Histidine Preferential Adsorption. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:6011-6019. [PMID: 27232976 DOI: 10.1021/acs.langmuir.5b04626] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In order to investigate the interaction of hydrophilic molecules with liposomal membranes, we employed 1-(4-(trimethylamino)phenyl)-6-phenyl-1,3,5-hexatriene and 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine-N-(5-dimethylamino-1-naphthalenesulfonyl) as fluorescent probes to monitor the surface regions of the membrane, and the results for various liposomes were plotted in correlation diagrams. According to the formation of a variety of phase states, different tendencies of decreasing surface hydrophobicity were observed in the liposomes that were modified with high concentrations of cholesterol or in the liposomes that were composed of ternary components. These liposomes, with hydrophobic surfaces, also showed preferential adsorption of l-histidine (l-His), and the hydrophobicity of the liposomal membrane at the surface changed during l-His adsorption regardless of the initial liposomal properties. Furthermore, we revealed that accelerated adsorption of l-His and preferential binding was induced in ternary liposomes forming boundaries between two separate phases.
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Affiliation(s)
- Takaaki Ishigami
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Atsushi Tauchi
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Keishi Suga
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Hiroshi Umakoshi
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
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25
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Abstract
Defense peptides are small amphipathic molecules that exhibit antimicrobial, antitumor, antiviral, and immunomodulatory properties. This review summarizes current knowledge on the mechanisms of antimicrobial activity of cationic and anionic defense peptides, indicating peptide-based as well as microbial cell-based factors affecting this activity. The peptide-based factors include charge, hydrophibicity, and amphipathicity, whereas the pathogen-based factors are membrane lipid composition, presence of sterols, membrane fluidity, cell wall components, and secreted factors such as extracellular proteinases. Since defense peptides have been considered very promising molecules that could replace conventional antibiotics in the era of drug-resistant pathogens, the issue of microbial resistance to antimicrobial peptides (AMPs) is addressed. Furthermore, selected approaches employed for optimization and de novo design of effective AMPs based on the properties recognized as important for the function of natural defense peptides are presented.
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26
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Takechi-Haraya Y, Nadai R, Kimura H, Nishitsuji K, Uchimura K, Sakai-Kato K, Kawakami K, Shigenaga A, Kawakami T, Otaka A, Hojo H, Sakashita N, Saito H. Enthalpy-driven interactions with sulfated glycosaminoglycans promote cell membrane penetration of arginine peptides. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:1339-49. [DOI: 10.1016/j.bbamem.2016.03.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 02/12/2016] [Accepted: 03/17/2016] [Indexed: 12/16/2022]
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27
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Alves ID, Carré M, Lavielle S. A Pathway Toward Tumor Cell-Selective CPPs? Methods Mol Biol 2016. [PMID: 26202276 DOI: 10.1007/978-1-4939-2806-4_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Despite the great potential of CPPs in therapeutics and diagnosis, their application still suffers from a non-negligible drawback: a complete lack of cell-type specificity. In the innumerous routes proposed for CPP cell entry there is common agreement that electrostatic interactions between cationic CPPs and anionic components in membranes, including lipids and glycosaminoglycans, play a crucial role. Tumor cells have been shown to overexpress certain glycosaminoglycans at the cell membrane surface and to possess a higher amount of anionic lipids in their outer leaflet when compared with healthy cells. Such molecules confer tumor cell membranes an enhanced anionic character, a property that could be exploited by CPPs to preferentially target these cells. Herein, these aspects are discussed in an attempt to confer CPPs certain selectivity toward cancer cells.
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Affiliation(s)
- Isabel D Alves
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), CNRS, Institut Polytechnique Bordeaux, Universite Bordeaux, All. Geoffroy Saint-Hilaire, 33600, Pessac, France,
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28
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Katagiri K, Takasu A, Higuchi M. Synthesis of Glycopolymer Containing Cell-Penetrating Peptides as Inducers of Recombinant Protein Expression under the Control of Lactose Operator/Repressor Systems. Biomacromolecules 2016; 17:1902-8. [PMID: 27057925 DOI: 10.1021/acs.biomac.6b00368] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We recently reported on newly synthesized S-galactosyl oligo(Arg) conjugates to overcome the serious problem of the passage through the E. coli cell membrane. Following in vivo expression of green fluorescent protein (GFP) induced by each of the S-galactosyl (Arg)n constructs (n = 5, 6, 8) at the T5 promoter in E. coli for 18 h, we visually observed that the cultures fluoresced green light when excited with UV light. The fluorescence intensities for these cultures were greater than that found for a control culture, indicating that the peptides had induced GFP expression. In order to accomplish higher expression efficiency, we investigated the cluster effect and structural fine-tuning of new poly(2-oxazoline) containing CysArgArg as the cell-penetrating peptide (CPP) and S-galactosides when acting as inducers of recombinant protein expression under the control of lac operator/repressor systems in this article. Quantitative fluorescence intensities (calculated per molecule) also supported the observations that the cell-penetrating glyco poly(2-oxazoline)s were better inducers of GFP expression than glyco poly(2-oxazoline) containing no CPP or isopropyl β-d-thiogalactoside. Because the level of GFP expression was directly related to the number of sugar residues in each glyco poly(2-oxazoline), we propose that a cluster effect of the S-galactosides attached to the cell-penetrating poly(2-oxazoline) is responsible for how well the galactosides inhibited the lac repressor to activate the protein expression under the control of the lac operator/repressor system. A similar tendency was observed when the T7 promoter was placed upstream of the gene for an artificial extracellular matrix protein and glyco poly(2-oxazoline)s-CPP conjugates were used as inducers. To assess how the glyco poly(2-oxazoline) penetrate the cell membrane, we labeled the glyco poly(2-oxazoline) using 1-amino pyrene and directly observed the penetration process. Furthermore, we could visualize protein expression under the control of a lac promoter/operator/repressor system using transmission electron microscopy combined with energy dispersive X-ray analysis mapping.
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Affiliation(s)
- Kei Katagiri
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology Gokiso-Cho , Showa-Ku, Nagoya 466-8555, Japan
| | - Akinori Takasu
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology Gokiso-Cho , Showa-Ku, Nagoya 466-8555, Japan
| | - Masahiro Higuchi
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology Gokiso-Cho , Showa-Ku, Nagoya 466-8555, Japan
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29
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Nakayama N, Hagiwara K, Ito Y, Ijiro K, Osada Y, Sano KI. Superior cell penetration by a rigid and anisotropic synthetic protein. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:2826-2832. [PMID: 25710086 DOI: 10.1021/la504494x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Molecules with structural anisotropy and rigidity, such as asbestos, demonstrate high cell-penetrating activity but also high toxicity. Here we synthesize a biodegradable, rigid, and fibrous artificial protein, CCPC 140, as a potential vehicle for cellular delivery. CCPC 140 penetrated 100% of cells tested in vitro, even at a concentration of 3.1 nM-superior to previously reported cell-penetrating peptides. The effects of cell-strain-dependency and aspect ratio on the cell-penetrating activity of CCPC 140 were also investigated.
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Affiliation(s)
- Norihisa Nakayama
- Graduate School of Environmental Symbiotic System Major and ‡Department of Innovative Systems Engineering, Nippon Institute of Technology , Miyashiro, Saitama 345-8501, Japan
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30
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Takechi-Haraya Y, Tanaka K, Tsuji K, Asami Y, Izawa H, Shigenaga A, Otaka A, Saito H, Kawakami K. Molecular Complex Composed of β-Cyclodextrin-Grafted Chitosan and pH-Sensitive Amphipathic Peptide for Enhancing Cellular Cholesterol Efflux under Acidic pH. Bioconjug Chem 2015; 26:572-81. [DOI: 10.1021/acs.bioconjchem.5b00037] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yuki Takechi-Haraya
- Institute
of Health Biosciences, Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shoumachi, Tokushima 770-8505, Japan
- International
Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Kento Tanaka
- Institute
of Health Biosciences, Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shoumachi, Tokushima 770-8505, Japan
| | - Kohei Tsuji
- Institute
of Health Biosciences, Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shoumachi, Tokushima 770-8505, Japan
| | - Yasuo Asami
- TA Instruments Japan, Inc., 5-2-4 Nishi-Gotanda, Shinagawa-ku, Tokyo, 141-0031 Japan
| | - Hironori Izawa
- International
Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Department
of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8552, Japan
| | - Akira Shigenaga
- Institute
of Health Biosciences, Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shoumachi, Tokushima 770-8505, Japan
| | - Akira Otaka
- Institute
of Health Biosciences, Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shoumachi, Tokushima 770-8505, Japan
| | - Hiroyuki Saito
- Institute
of Health Biosciences, Graduate School of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shoumachi, Tokushima 770-8505, Japan
| | - Kohsaku Kawakami
- International
Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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31
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Di Pisa M, Chassaing G, Swiecicki JM. Translocation Mechanism(s) of Cell-Penetrating Peptides: Biophysical Studies Using Artificial Membrane Bilayers. Biochemistry 2014; 54:194-207. [DOI: 10.1021/bi501392n] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Margherita Di Pisa
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7203, Laboratoire des Biomolécules, F-75005 Paris, France
- CNRS, UMR 7203, Laboratoire des Biomolécules, F-75005 Paris, France
- ENS, UMR 7203, Laboratoire des Biomolécules,
Département de Chimie, Ecole Normale Supérieure, 24 Rue Lhomond, F-75005 Paris, France
| | - Gérard Chassaing
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7203, Laboratoire des Biomolécules, F-75005 Paris, France
- CNRS, UMR 7203, Laboratoire des Biomolécules, F-75005 Paris, France
- ENS, UMR 7203, Laboratoire des Biomolécules,
Département de Chimie, Ecole Normale Supérieure, 24 Rue Lhomond, F-75005 Paris, France
| | - Jean-Marie Swiecicki
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7203, Laboratoire des Biomolécules, F-75005 Paris, France
- CNRS, UMR 7203, Laboratoire des Biomolécules, F-75005 Paris, France
- ENS, UMR 7203, Laboratoire des Biomolécules,
Département de Chimie, Ecole Normale Supérieure, 24 Rue Lhomond, F-75005 Paris, France
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32
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Hu Y, Sinha SK, Patel S. Reconciling structural and thermodynamic predictions using all-atom and coarse-grain force fields: the case of charged oligo-arginine translocation into DMPC bilayers. J Phys Chem B 2014; 118:11973-92. [PMID: 25290376 PMCID: PMC4199542 DOI: 10.1021/jp504853t] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Using the translocation of short, charged cationic oligo-arginine peptides (mono-, di-, and triarginine) from bulk aqueous solution into model DMPC bilayers, we explore the question of the similarity of thermodynamic and structural predictions obtained from molecular dynamics simulations using all-atom and Martini coarse-grain force fields. Specifically, we estimate potentials of mean force associated with translocation using standard all-atom (CHARMM36 lipid) and polarizable and nonpolarizable Martini force fields, as well as a series of modified Martini-based parameter sets. We find that we are able to reproduce qualitative features of potentials of mean force of single amino acid side chain analogues into model bilayers. In particular, modifications of peptide-water and peptide-membrane interactions allow prediction of free energy minima at the bilayer-water interface as obtained with all-atom force fields. In the case of oligo-arginine peptides, the modified parameter sets predict interfacial free energy minima as well as free energy barriers in almost quantitative agreement with all-atom force field based simulations. Interfacial free energy minima predicted by a modified coarse-grained parameter set are -2.51, -4.28, and -5.42 for mono-, di-, and triarginine; corresponding values from all-atom simulations are -0.83, -3.33, and -3.29, respectively, all in units of kcal/mol. We found that a stronger interaction between oligo-arginine and the membrane components and a weaker interaction between oligo-arginine and water are crucial for producing such minima in PMFs using the polarizable CG model. The difference between bulk aqueous and bilayer center states predicted by the modified coarse-grain force field are 11.71, 14.14, and 16.53 kcal/mol, and those by the all-atom model are 6.94, 8.64, and 12.80 kcal/mol; those are of almost the same order of magnitude. Our simulations also demonstrate a remarkable similarity in the structural aspects of the ensemble of configurations generated using the all-atom and coarse-grain force fields. Both resolutions show that oligo-arginine peptides adopt preferential orientations as they translocate into the bilayer. The guiding theme centers on charged groups maintaining coordination with polar and charged bilayer components as well as local water. We also observe similar behaviors related with membrane deformations.
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Affiliation(s)
- Yuan Hu
- Department of Chemistry and Biochemistry, University of Delaware , Newark, Delaware 19716, United States
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Muthukrishnan N, Donovan S, Pellois JP. The photolytic activity of poly-arginine cell penetrating peptides conjugated to carboxy-tetramethylrhodamine is modulated by arginine residue content and fluorophore conjugation site. Photochem Photobiol 2014; 90:1034-42. [PMID: 24815901 DOI: 10.1111/php.12288] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 05/05/2014] [Indexed: 12/16/2022]
Abstract
Upon light irradiation, Fluorophore-cell-penetrating peptide (Fl-CPP) conjugates can disrupt the integrity of biological membranes. This activity can in turn be used to photoinduce the disruption of endocytic organelles and promote the delivery of entrapped macromolecules such as proteins or RNAs into live cells. Recent mechanistic studies have shown that ROS production by the fluorophore and a latent lytic ability of CPPs act in synergy to elicit photolysis. However, how the structure of fluorophore-CPP conjugates impacts this synergistic activity remains unclear. Herein, using red blood cells (RBCs) as a model of biological membranes, we show that the number of arginine residues in a CPP as well as the position of fluorophore with respect to the CPP dramatically affect the photolytic activity of a fluorophore-CPP conjugate. These factors should therefore be considered for the development of effective photoinducible delivery agents.
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Maniti O, Piao HR, Ayala-Sanmartin J. Basic cell penetrating peptides induce plasma membrane positive curvature, lipid domain separation and protein redistribution. Int J Biochem Cell Biol 2014; 50:73-81. [DOI: 10.1016/j.biocel.2014.02.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 02/12/2014] [Accepted: 02/19/2014] [Indexed: 11/27/2022]
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Copolovici DM, Langel K, Eriste E, Langel Ü. Cell-penetrating peptides: design, synthesis, and applications. ACS NANO 2014; 8:1972-94. [PMID: 24559246 DOI: 10.1021/nn4057269] [Citation(s) in RCA: 669] [Impact Index Per Article: 66.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The intrinsic property of cell-penetrating peptides (CPPs) to deliver therapeutic molecules (nucleic acids, drugs, imaging agents) to cells and tissues in a nontoxic manner has indicated that they may be potential components of future drugs and disease diagnostic agents. These versatile peptides are simple to synthesize, functionalize, and characterize yet are able to deliver covalently or noncovalently conjugated bioactive cargos (from small chemical drugs to large plasmid DNA) inside cells, primarily via endocytosis, in order to obtain high levels of gene expression, gene silencing, or tumor targeting. Typically, CPPs are often passive and nonselective yet must be functionalized or chemically modified to create effective delivery vectors that succeed in targeting specific cells or tissues. Furthermore, the design of clinically effective systemic delivery systems requires the same amount of attention to detail in both design of the delivered cargo and the cell-penetrating peptide used to deliver it.
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Affiliation(s)
- Dana Maria Copolovici
- Laboratory of Molecular Biotechnology, Institute of Technology, Tartu University , 504 11 Tartu, Estonia
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Hu Y, Liu X, Sinha SK, Patel S. Translocation thermodynamics of linear and cyclic nonaarginine into model DPPC bilayer via coarse-grained molecular dynamics simulation: implications of pore formation and nonadditivity. J Phys Chem B 2014; 118:2670-82. [PMID: 24506488 PMCID: PMC3983342 DOI: 10.1021/jp412600e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
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Structural mechanisms
and underlying thermodynamic determinants
of efficient internalization of charged cationic peptides (cell-penetrating
peptides, CPPs) such as TAT, polyarginine, and their variants, into
cells, cellular constructs, and model membrane/lipid bilayers (large
and giant unilamellar or multilamelar vesicles) continue to garner
significant attention. Two widely held views on the translocation
mechanism center on endocytotic and nonendocytotic (diffusive) processes.
Espousing the view of a purely diffusive internalization process (supported
by recent experimental evidence, [Säälik, P.; et al. J. Controlled Release2011, 153, 117–125]), we consider the underlying free energetics of
the translocation of a nonaarginine peptide (Arg9) into
a model DPPC bilayer. In the case of the Arg9 cationic
peptide, recent experiments indicate a higher internalization efficiency
of the cyclic structure (cyclic Arg9) relative to the linear
conformer. Furthermore, recent all-atom resolution molecular dynamics
simulations of cyclic Arg9 [Huang, K.; et al. Biophys.
J., 2013, 104, 412–420]
suggested a critical stabilizing role of water- and lipid-constituted
pores that form within the bilayer as the charged Arg9 translocates
deep into the bilayer center. Herein, we use umbrella sampling molecular
dynamics simulations with coarse-grained Martini lipids, polarizable
coarse-grained water, and peptide to explore the dependence of translocation
free energetics on peptide structure and conformation via calculation
of potentials of mean force along preselected reaction paths allowing
and preventing membrane deformations that lead to pore formation.
Within the context of the coarse-grained force fields we employ, we
observe significant barriers for Arg9 translocation from
bulk aqueous solution to bilayer center. Moreover, we do not find
free-energy minima in the headgroup–water interfacial region,
as observed in simulations using all-atom force fields. The pore-forming
paths systematically predict lower free-energy barriers (ca. 90 kJ/mol
lower) than the non pore-forming paths, again consistent with all-atom
force field simulations. The current force field suggests no preference
for the more compact or covalently cyclic structures upon entering
the bilayer. Decomposition of the PMF into the system’s components
indicates that the dominant stabilizing contribution along the pore-forming
path originates from the membrane as both layers of it deformed due
to the formation of pore. Furthermore, our analysis revealed that
although there is significant entropic stabilization arising from
the enhanced configurational entropy exposing more states as the peptide
moves through the bilayer, the enthalpic loss (as predicted by the
interactions of this coarse-grained model) far outweighs any former
stabilization, thus leading to significant barrier to translocation.
Finally, we observe reduction in the translocation free-energy barrier
for a second Arg9 entering the bilayer in the presence
of an initial peptide restrained at the center, again, in qualitative
agreement with all-atom force fields.
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Affiliation(s)
- Yuan Hu
- Department of Chemistry and Biochemistry, University of Delaware , 238 Brown Laboratory, Newark, Delaware 19716, United States
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Alhakamy NA, Kaviratna A, Berkland CJ, Dhar P. Dynamic measurements of membrane insertion potential of synthetic cell penetrating peptides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:15336-49. [PMID: 24294979 PMCID: PMC3918496 DOI: 10.1021/la403370p] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Cell penetrating peptides (CPPs) have been established as excellent candidates for mediating drug delivery into cells. When designing synthetic CPPs for drug delivery applications, it is important to understand their ability to penetrate the cell membrane. In this paper, anionic or zwitterionic phospholipid monolayers at the air-water interface are used as model cell membranes to monitor the membrane insertion potential of synthetic CPPs. The insertion potential of CPPs having different cationic and hydrophobic amino acids were recorded using a Langmuir monolayer approach that records peptide adsorption to model membranes. Fluorescence microscopy was used to visualize alterations in phospholipid packing due to peptide insertion. All CPPs had the highest penetration potential in the presence of anionic phospholipids. In addition, two of three amphiphilic CPPs inserted into zwitterionic phospholipids, but none of the hydrophilic CPPs did. All the CPPs studied induced disruptions in phospholipid packing and domain morphology, which were most pronounced for amphiphilic CPPs. Overall, small changes to amino acids and peptide sequences resulted in dramatically different insertion potentials and membrane reorganization. Designers of synthetic CPPs for efficient intracellular drug delivery should consider small nuances in CPP electrostatic and hydrophobic properties.
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Affiliation(s)
- Nabil A. Alhakamy
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, USA 66047
| | - Anubhav Kaviratna
- Department of Chemical & Petroleum Engineering, University of Kansas, Lawrence, KS, USA 66047
| | - Cory J. Berkland
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, USA 66047
- Department of Chemical & Petroleum Engineering, University of Kansas, Lawrence, KS, USA 66047
| | - Prajnaparamita Dhar
- Department of Chemical & Petroleum Engineering, University of Kansas, Lawrence, KS, USA 66047
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Liu BR, Lo SY, Liu CC, Chyan CL, Huang YW, Aronstam RS, Lee HJ. Endocytic Trafficking of Nanoparticles Delivered by Cell-penetrating Peptides Comprised of Nona-arginine and a Penetration Accelerating Sequence. PLoS One 2013; 8:e67100. [PMID: 23840594 PMCID: PMC3694042 DOI: 10.1371/journal.pone.0067100] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 05/15/2013] [Indexed: 11/18/2022] Open
Abstract
Cell-penetrating peptides (CPPs) can traverse cellular membranes and deliver biologically active molecules into cells. In this study, we demonstrate that CPPs comprised of nona-arginine (R9) and a penetration accelerating peptide sequence (Pas) that facilitates escape from endocytic lysosomes, denoted as PR9, greatly enhance the delivery of noncovalently associated quantum dots (QDs) into human A549 cells. Mechanistic studies, intracellular trafficking analysis and a functional gene assay reveal that endocytosis is the main route for intracellular delivery of PR9/QD complexes. Endocytic trafficking of PR9/QD complexes was monitored using both confocal and transmission electron microscopy (TEM). Zeta-potential and size analyses indicate the importance of electrostatic forces in the interaction of PR9/QD complexes with plasma membranes. Circular dichroism (CD) spectroscopy reveals that the secondary structural elements of PR9 have similar conformations in aqueous buffer at pH 7 and 5. This study of nontoxic PR9 provides a basis for the design of optimized cargo delivery that allows escape from endocytic vesicles.
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Affiliation(s)
- Betty R Liu
- Department of Natural Resources and Environmental Studies, National Dong Hwa University, Hualien, Taiwan
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Mizuta Y, Takasu A, Higuchi M. Synthesis of Cell-PenetratingS-Galactosyl-Oligoarginine Peptides as Inducers of Recombinant Protein Expression under the Control oflacOperator/Repressor Systems. Chempluschem 2013; 78:677-683. [DOI: 10.1002/cplu.201300130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Indexed: 11/07/2022]
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Bechara C, Sagan S. Cell-penetrating peptides: 20 years later, where do we stand? FEBS Lett 2013; 587:1693-702. [PMID: 23669356 DOI: 10.1016/j.febslet.2013.04.031] [Citation(s) in RCA: 630] [Impact Index Per Article: 57.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 04/22/2013] [Accepted: 04/29/2013] [Indexed: 01/01/2023]
Abstract
Twenty years ago, the discovery of peptides able to cross cellular membranes launched a novel field in molecular delivery based on these non-invasive vectors, most commonly called cell-penetrating peptides (CPPs) or protein transduction domains (PTDs). These peptides were shown to efficiently transport various biologically active molecules inside living cells, and thus are considered promising devices for medical and biotechnological developments. Moreover, CPPs emerged as potential tools to study the prime mechanisms of cellular entry across the plasma membrane. This review is dedicated to CPP fundamentals, with an emphasis on the molecular requirements and mechanism of their entry into eukaryotic cells.
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Affiliation(s)
- Chérine Bechara
- UPMC-Univ Paris 6, Laboratoire des BioMolecules, cc 182, UMR 7203 CNRS, ENS, Paris, France.
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41
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Cell uptake and cytotoxicity of a novel cyclometalated iridium(III) complex and its octaarginine peptide conjugate. J Inorg Biochem 2013. [DOI: 10.1016/j.jinorgbio.2012.11.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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42
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Kolesinska B, Podwysocka DJ, Rueping MA, Seebach D, Kamena F, Walde P, Sauer M, Windschiegl B, Meyer-Ács M, Vor der Brüggen M, Giehring S. Permeation through Phospholipid Bilayers, Skin-Cell Penetration, Plasma Stability, and CD Spectra ofα- andβ-Oligoproline Derivatives. Chem Biodivers 2013; 10:1-38. [DOI: 10.1002/cbdv.201200393] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Indexed: 11/06/2022]
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Takechi Y, Mizuguchi C, Tanaka M, Kawakami T, Aimoto S, Okamura E, Saito H. Physicochemical Mechanism for the Lipid Membrane Binding of Polyarginine: The Favorable Enthalpy Change with Structural Transition from Random Coil to α-Helix. CHEM LETT 2012. [DOI: 10.1246/cl.2012.1374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuki Takechi
- Faculty of Pharmaceutical Sciences, Himeji Dokkyo University
| | - Chiharu Mizuguchi
- Institute of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima
| | - Masafumi Tanaka
- Department of Biophysical Chemistry, Kobe Pharmaceutical University
| | | | | | - Emiko Okamura
- Faculty of Pharmaceutical Sciences, Himeji Dokkyo University
| | - Hiroyuki Saito
- Institute of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima
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Rydberg HA, Matson M, Amand HL, Esbjörner EK, Nordén B. Effects of tryptophan content and backbone spacing on the uptake efficiency of cell-penetrating peptides. Biochemistry 2012; 51:5531-9. [PMID: 22712882 DOI: 10.1021/bi300454k] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cell-penetrating peptides (CPPs) are able to traverse cellular membranes and deliver macromolecular cargo. Uptake occurs through both endocytotic and nonendocytotic pathways, but the molecular requirements for efficient internalization are not fully understood. Here we investigate how the presence of tryptophans and their position within an oligoarginine influence uptake mechanism and efficiency. Flow cytometry and confocal fluorescence imaging are used to estimate uptake efficiency, intracellular distribution and toxicity in Chinese hamster ovarian cells. Further, membrane leakage and lipid membrane affinity are investigated. The peptides contain eight arginine residues and one to four tryptophans, the tryptophans positioned either at the N-terminus, in the middle, or evenly distributed along the amino acid sequence. Our data show that the intracellular distribution varies among peptides with different tryptophan content and backbone spacing. Uptake efficiency is higher for the peptides with four tryptophans in the middle, or evenly distributed along the peptide sequence, than for the peptide with four tryptophans at the N-terminus. All peptides display low cytotoxicity except for the one with four tryptophans at the N-terminus, which was moderately toxic. This finding is consistent with their inability to induce efficient leakage of dye from lipid vesicles. All peptides have comparable affinities for lipid vesicles, showing that lipid binding is not a decisive parameter for uptake. Our results indicate that tryptophan content and backbone spacing can affect both the CPP uptake efficiency and the CPP uptake mechanism. The low cytotoxicity of these peptides and the possibilities of tuning their uptake mechanism are interesting from a therapeutic point of view.
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Affiliation(s)
- Hanna A Rydberg
- Department of Chemical and Biological Engineering/Physical Chemistry, Chalmers University of Technology, Gothenburg, Sweden
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Walrant A, Bechara C, Alves ID, Sagan S. Molecular partners for interaction and cell internalization of cell-penetrating peptides: how identical are they? Nanomedicine (Lond) 2012; 7:133-43. [DOI: 10.2217/nnm.11.165] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Cell-penetrating peptides are short basic peptide sequences that might display amphipathic properties. These positively charged peptides internalize into all cell types, albeit with different efficiency. Cell-penetrating peptides use all routes of pinocytosis to internalize, in addition to direct membrane translocation that requires interaction with lipid membrane domains. These differences in internalization efficiency according to the peptide sequence and cell type suggest that the cell-penetrating peptides interact with different molecular partners at the cell surface. This review will first report on data that describe the molecular interaction of the most popular cell-penetrating peptides (penetratin, Tat and oligoarginine) with carbohydrates and lipids. The second part of the review will be dedicated to cell studies that have reported how cell surface composition influences cell internalization. Discussion will focus on the gap between in vitro and in cellulo studies, and more specifically to which extent the interaction with molecules found in membranes reflect the internalization efficiency of the peptides.
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Affiliation(s)
- Astrid Walrant
- UPMC Univ Paris 06, UMR 7203, LBM, 75005 Paris, France
- CNRS, UMR 7203, LBM, 75005 Paris, France
- ENS, UMR 7203, LBM, 75005 Paris, France
| | - Chérine Bechara
- UPMC Univ Paris 06, UMR 7203, LBM, 75005 Paris, France
- CNRS, UMR 7203, LBM, 75005 Paris, France
- ENS, UMR 7203, LBM, 75005 Paris, France
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Takechi Y, Tanaka H, Kitayama H, Yoshii H, Tanaka M, Saito H. Comparative study on the interaction of cell-penetrating polycationic polymers with lipid membranes. Chem Phys Lipids 2011; 165:51-8. [PMID: 22108318 DOI: 10.1016/j.chemphyslip.2011.11.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 11/02/2011] [Accepted: 11/04/2011] [Indexed: 01/25/2023]
Abstract
Cell-penetrating peptides are arginine- and lysine-rich cationic peptides that can readily enter cells not only by themselves but also carrying other macromolecular cargos. In fact, we have reported that polycationic polymer such as poly-l-lysine (PLL) and poly-l-arginine (PLA) translocate through negatively charged phospholipid liposome membranes. In this work, we made a comparative study of the interaction of PLL or PLA with lipid membranes consisting of negatively charged phospholipids to understand the role of basic amino acid residue (i.e. arginine and lysine) in the membrane-penetrating activity of polypeptides. PLA and PLL translocated into giant unilamellar vesicle composed of soybean phospholipids. ζ-potential and turbidity measurements demonstrated the electrostatic binding of PLL and PLA to large unilamellar vesicle (LUV). Fluorescence studies using membrane probes revealed that the binding of PLA and PLL to LUV affects the hydration and packing of the membrane interface region, in which the membrane insertion of PLA appeared to be greater than PLL. Differential scanning calorimetry showed that the enthalpy of the gel to liquid-crystalline phase transition for dipalmitoyl phosphatidylglycerol vesicle was greatly reduced by binding of PLL and PLA, in which the reduction is much larger in PLA than in PLL. Circular dichroism measurements in 2,2,2-trifluoroethanol/water mixture or in the presence of LUV indicated that the propensity of PLA to form α-helical structure is greater than PLL. Consistently, attenuated total reflection-Fourier transform infrared spectroscopy revealed that there is greater α-helical structure in PLA bound to LUV compared to PLL, which has much less ordered structure. Furthermore, isothermal titration calorimetry measurements demonstrated that the contribution of enthalpy to the energetics of binding to LUV is two-fold larger in PLA than in PLL. These results suggest that the stronger interaction of arginine residue with negatively charged phospholipid membranes compared to lysine residue appears to facilitate the conformational change in cationic polypeptide and its insertion into lipid membrane interior.
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Affiliation(s)
- Yuki Takechi
- Institute of Health Biosciences, The University of Tokushima Graduate School of Pharmaceutical Sciences, 1-78-1 Shomachi, Tokushima 770-8505, Japan
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