1
|
Canepa E, Relini A, Bochicchio D, Lavagna E, Mescola A. Amphiphilic Gold Nanoparticles: A Biomimetic Tool to Gain Mechanistic Insights into Peptide-Lipid Interactions. MEMBRANES 2022; 12:673. [PMID: 35877876 PMCID: PMC9324301 DOI: 10.3390/membranes12070673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 02/04/2023]
Abstract
Functional peptides are now widely used in a myriad of biomedical and clinical contexts, from cancer therapy and tumor targeting to the treatment of bacterial and viral infections. Underlying this diverse range of applications are the non-specific interactions that can occur between peptides and cell membranes, which, in many contexts, result in spontaneous internalization of the peptide within cells by avoiding energy-driven endocytosis. For this to occur, the amphipathicity and surface structural flexibility of the peptides play a crucial role and can be regulated by the presence of specific molecular residues that give rise to precise molecular events. Nevertheless, most of the mechanistic details regulating the encounter between peptides and the membranes of bacterial or animal cells are still poorly understood, thus greatly limiting the biomimetic potential of these therapeutic molecules. In this arena, finely engineered nanomaterials-such as small amphiphilic gold nanoparticles (AuNPs) protected by a mixed thiol monolayer-can provide a powerful tool for mimicking and investigating the physicochemical processes underlying peptide-lipid interactions. Within this perspective, we present here a critical review of membrane effects induced by both amphiphilic AuNPs and well-known amphiphilic peptide families, such as cell-penetrating peptides and antimicrobial peptides. Our discussion is focused particularly on the effects provoked on widely studied model cell membranes, such as supported lipid bilayers and lipid vesicles. Remarkable similarities in the peptide or nanoparticle membrane behavior are critically analyzed. Overall, our work provides an overview of the use of amphiphilic AuNPs as a highly promising tailor-made model to decipher the molecular events behind non-specific peptide-lipid interactions and highlights the main affinities observed both theoretically and experimentally. The knowledge resulting from this biomimetic approach could pave the way for the design of synthetic peptides with tailored functionalities for next-generation biomedical applications, such as highly efficient intracellular delivery systems.
Collapse
Affiliation(s)
- Ester Canepa
- Department of Physics, University of Genoa, Via Dodecaneso 33, 16146 Genoa, Italy; (E.C.); (A.R.); (D.B.)
| | - Annalisa Relini
- Department of Physics, University of Genoa, Via Dodecaneso 33, 16146 Genoa, Italy; (E.C.); (A.R.); (D.B.)
| | - Davide Bochicchio
- Department of Physics, University of Genoa, Via Dodecaneso 33, 16146 Genoa, Italy; (E.C.); (A.R.); (D.B.)
| | - Enrico Lavagna
- Department of Physics, University of Genoa, Via Dodecaneso 33, 16146 Genoa, Italy; (E.C.); (A.R.); (D.B.)
| | - Andrea Mescola
- CNR-Nanoscience Institute-S3, Via Campi 213/A, 41125 Modena, Italy
| |
Collapse
|
2
|
Devanand T, Krishnaswamy S, Vemparala S. Interdigitation of Lipids Induced by Membrane–Active Proteins. J Membr Biol 2019; 252:331-342. [DOI: 10.1007/s00232-019-00072-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/29/2019] [Indexed: 12/18/2022]
|
3
|
Almeida C, Maniti O, Di Pisa M, Swiecicki JM, Ayala-Sanmartin J. Cholesterol re-organisation and lipid de-packing by arginine-rich cell penetrating peptides: Role in membrane translocation. PLoS One 2019; 14:e0210985. [PMID: 30673771 PMCID: PMC6343925 DOI: 10.1371/journal.pone.0210985] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 01/06/2019] [Indexed: 11/19/2022] Open
Abstract
Cell penetrating peptides (CPPs) are able to transport hydrophilic molecules inside cells. To reach the cytosol, the peptide associated with a cargo must cross the plasma or the endosomal membrane. Different molecular mechanisms for peptide internalisation into cells have been proposed and it is becoming clear that the cellular internalisation mechanisms are different depending on the peptide sequence and structure and the target membrane. Herein, the penetration of three peptides into large unilamellar vesicles were studied: the homeodomain derived 16-residues penetratin, nona-arginine (R9), and a small peptide containing 6 arginine and 3 tryptophan residues (RW9). The membrane models were composed of phospholipids from natural sources containing different molecular species. We observed that among the three peptides, only the amphipathic peptide RW9 was able to cross the membrane vesicles in the liquid disordered state. The changes in the distribution of the previously characterized cholesterol-pyrene probe show that cholesterol-pyrene molecules dissociate from clusters upon membrane interaction with the three peptides and that the cholesterol environment becomes more disordered in the presence of RW9. Finally, we studied the effect of the peptides on lipid ordering on giant plasma membrane vesicles. The amphipathic peptides RW9 and its longer homologue RW16 induced lipid de-packing in plasma membrane vesicles. Overall, the data suggest that a disordered membrane favours the translocation of RW9, that the membrane cholesterol is redistributed during peptide interaction, and that the peptide amphipathic character is important to increase membrane fluidity and peptide membrane translocation.
Collapse
Affiliation(s)
- Claudia Almeida
- CNRS, Sorbonne Université, École Normale Supérieure, Université PSL, Laboratoire des Biomolécules, Paris, France
| | - Ofelia Maniti
- CNRS, Sorbonne Université, École Normale Supérieure, Université PSL, Laboratoire des Biomolécules, Paris, France
| | - Margherita Di Pisa
- CNRS, Sorbonne Université, École Normale Supérieure, Université PSL, Laboratoire des Biomolécules, Paris, France
| | - Jean-Marie Swiecicki
- CNRS, Sorbonne Université, École Normale Supérieure, Université PSL, Laboratoire des Biomolécules, Paris, France
| | - Jesus Ayala-Sanmartin
- CNRS, Sorbonne Université, École Normale Supérieure, Université PSL, Laboratoire des Biomolécules, Paris, France
- * E-mail:
| |
Collapse
|
4
|
Almeida C, De Wreede A, Lamazière A, Ayala-Sanmartin J. Cholesterol-pyrene as a probe for cholesterol distribution on ordered and disordered membranes: Determination of spectral wavelengths. PLoS One 2018; 13:e0201373. [PMID: 30096186 PMCID: PMC6086420 DOI: 10.1371/journal.pone.0201373] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/13/2018] [Indexed: 12/12/2022] Open
Abstract
Biological membranes contain a large variety of lipids species compartmentalized in different domains heterogeneous in size, composition and dynamics. Cholesterol induces membrane ordered domains thanks to its affinity for saturated lipids. Membrane domains had been studied with fluorescent probes either linked to phospholipids and proteins or as individual fluorophore. However, no efficient formulation of a cholesterol probe has been available so far. Herein, we described a cholesterol-pyrene probe behaviour in heterogeneous membranes. We characterised the pyrene fluorescence spectra in liquid-ordered (Lo) and liquid-disordered (Ld) membranes. Using statistical multivariate analysis, we found out the most appropriate wavelengths for membrane domains studies. 373 nm and 379 nm were the most discriminant wavelengths to follow the liquid-ordered and the liquid-disordered environments. Cholesterol clustering behaviour was quantified by the modulation of the cholesterol-pyrene excimers peak (474 nm). In liquid-ordered membranes at low temperature, cholesterol-pyrene was found as multimers and as monomers. At high temperature, the liquid-ordered status of the membrane decreases and cholesterol-pyrene tends to cluster. In liquid-disordered membranes, cholesterol-pyrene was present mostly as monomers and the small quantity of excimers increased with temperature. Cholesterol-pyrene was used to test the ceramide effect on membranes, and presented a behaviour in agreement with the cholesterol behaviour reported in the literature. Overall, the presented data show that cholesterol-pyrene is an efficient sensor to study liquid ordered and liquid disordered organisation in membranes.
Collapse
Affiliation(s)
- Claudia Almeida
- CNRS, Sorbonne Université, École normale supérieure, PSL University, INSERM, APHP,Hôpital Saint-Antoine, Laboratoire des biomolécules, LBM, Paris, France
| | - Anaëlle De Wreede
- CNRS, Sorbonne Université, École normale supérieure, PSL University, INSERM, APHP,Hôpital Saint-Antoine, Laboratoire des biomolécules, LBM, Paris, France
| | - Antonin Lamazière
- CNRS, Sorbonne Université, École normale supérieure, PSL University, INSERM, APHP,Hôpital Saint-Antoine, Laboratoire des biomolécules, LBM, Paris, France
| | - Jesus Ayala-Sanmartin
- CNRS, Sorbonne Université, École normale supérieure, PSL University, INSERM, APHP,Hôpital Saint-Antoine, Laboratoire des biomolécules, LBM, Paris, France
- * E-mail:
| |
Collapse
|
5
|
Nitenberg M, Bénarouche A, Maniti O, Marion E, Marsollier L, Géan J, Dufourc EJ, Cavalier JF, Canaan S, Girard-Egrot AP. The potent effect of mycolactone on lipid membranes. PLoS Pathog 2018; 14:e1006814. [PMID: 29320578 PMCID: PMC5779694 DOI: 10.1371/journal.ppat.1006814] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 01/23/2018] [Accepted: 12/14/2017] [Indexed: 12/15/2022] Open
Abstract
Mycolactone is a lipid-like endotoxin synthesized by an environmental human pathogen, Mycobacterium ulcerans, the causal agent of Buruli ulcer disease. Mycolactone has pleiotropic effects on fundamental cellular processes (cell adhesion, cell death and inflammation). Various cellular targets of mycolactone have been identified and a literature survey revealed that most of these targets are membrane receptors residing in ordered plasma membrane nanodomains, within which their functionalities can be modulated. We investigated the capacity of mycolactone to interact with membranes, to evaluate its effects on membrane lipid organization following its diffusion across the cell membrane. We used Langmuir monolayers as a cell membrane model. Experiments were carried out with a lipid composition chosen to be as similar as possible to that of the plasma membrane. Mycolactone, which has surfactant properties, with an apparent saturation concentration of 1 μM, interacted with the membrane at very low concentrations (60 nM). The interaction of mycolactone with the membrane was mediated by the presence of cholesterol and, like detergents, mycolactone reshaped the membrane. In its monomeric form, this toxin modifies lipid segregation in the monolayer, strongly affecting the formation of ordered microdomains. These findings suggest that mycolactone disturbs lipid organization in the biological membranes it crosses, with potential effects on cell functions and signaling pathways. Microdomain remodeling may therefore underlie molecular events, accounting for the ability of mycolactone to attack multiple targets and providing new insight into a single unifying mechanism underlying the pleiotropic effects of this molecule. This membrane remodeling may act in synergy with the other known effects of mycolactone on its intracellular targets, potentiating these effects.
Collapse
Affiliation(s)
- Milène Nitenberg
- Univ. Lyon, Université Lyon 1, CNRS, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS—UMR 5246, GEMBAS team, Lyon, France
| | | | - Ofelia Maniti
- Univ. Lyon, Université Lyon 1, CNRS, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS—UMR 5246, GEMBAS team, Lyon, France
| | - Estelle Marion
- CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France
| | - Laurent Marsollier
- CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France
| | - Julie Géan
- Univ. Bordeaux, CNRS, Bordeaux INP, Chemistry and Biology of Membranes and Nano-objects, CBMN UMR 5248, Pessac, France
| | - Erick J. Dufourc
- Univ. Bordeaux, CNRS, Bordeaux INP, Chemistry and Biology of Membranes and Nano-objects, CBMN UMR 5248, Pessac, France
| | - Jean-François Cavalier
- Aix-Marseille Univ, CNRS, EIPL, Marseille, France
- Aix-Marseille Univ, CNRS, LISM, Marseille, France
| | - Stéphane Canaan
- Aix-Marseille Univ, CNRS, EIPL, Marseille, France
- Aix-Marseille Univ, CNRS, LISM, Marseille, France
| | - Agnès P. Girard-Egrot
- Univ. Lyon, Université Lyon 1, CNRS, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, ICBMS—UMR 5246, GEMBAS team, Lyon, France
| |
Collapse
|
6
|
Membrane re-arrangements and rippled phase stabilisation by the cell penetrating peptide penetratin. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:2584-2591. [DOI: 10.1016/j.bbamem.2016.07.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/17/2016] [Accepted: 07/25/2016] [Indexed: 11/21/2022]
|
7
|
Abstract
Cell-penetrating peptides are short, often hydrophilic peptides that get access to the intracellular milieu. They have aroused great interest both in academic and applied research. First, cellular internalization of CPPs often involves the crossing of a biological membrane (plasma or vesicular), thus challenging the view of the non-permeability of these structures to large hydrophilic molecules. Secondly, CPPs can drive the internalization of hydrophilic cargoes into cells, a rate-limiting step in the development of many therapeutic substances. Interestingly, the two most used CPPs, TAT and penetratin peptides, are derived from natural proteins, HIV Tat and Antennapedia homeoprotein, respectively. The identification of the penetratin peptide, summarized in this review, is intimately linked to the study of its parental natural protein.
Collapse
Affiliation(s)
- Edmond Dupont
- Center for Interdisciplinary Research in Biology (CIRB), Labex Memolife, PSL Research University, College de France, Paris, France
| | | | | |
Collapse
|
8
|
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
| |
Collapse
|
9
|
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]
|
10
|
Xie X, Kerrigan JE, Minko T, Garbuzenko O, Lee KC, Scarborough A, Abali EE, Budak-Alpdogan T, Johnson-Farley N, Banerjee D, Scotto KW, Bertino JR. Antitumor and modeling studies of a penetratin-peptide that targets E2F-1 in small cell lung cancer. Cancer Biol Ther 2013; 14:742-51. [PMID: 23792570 DOI: 10.4161/cbt.25184] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
E2F-1, a key transcription factor necessary for cell growth, DNA repair, and differentiation, is an attractive target for development of anticancer drugs in tumors that are E2F "oncogene addicted". We identified a peptide isolated from phage clones that bound tightly to the E2F-1 promoter consensus sequence. The peptide was coupled to penetratin to enhance cellular uptake. Modeling of the penetratin-peptide (PEP) binding to the DNA E2F-1 promoter demonstrated favorable interactions that also involved the participation of most of the penetratin sequence. The penetratin-peptide (PEP) demonstrated potent in vitro cytotoxic effects against a range of cancer cell lines, particularly against Burkitt lymphoma cells and small cell lung cancer (SCLC) cells. Further studies in the H-69 SCLC cell line showed that the PEP inhibited transcription of E2F-1 and also several important E2F-regulated enzymes involved in DNA synthesis, namely, thymidylate synthase, thymidine kinase, and ribonucleotide reductase. As the PEP was found to be relatively unstable in serum, it was encapsulated in PEGylated liposomes for in vivo studies. Treatment of mice bearing the human small cell lung carcinoma H-69 with the PEP encapsulated in PEGylated liposomes (PL-PEP) caused tumor regression without significant toxicity. The liposome encapsulated PEP has promise as an antitumor agent, alone or in combination with inhibitors of DNA synthesis.
Collapse
Affiliation(s)
- Xiaoqi Xie
- Department of Pharmacology and Medicine, Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Bechara C, Pallerla M, Zaltsman Y, Burlina F, Alves ID, Lequin O, Sagan S. Tryptophan within basic peptide sequences triggers glycosaminoglycan‐dependent endocytosis. FASEB J 2012; 27:738-49. [DOI: 10.1096/fj.12-216176] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Chérine Bechara
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
| | - Manjula Pallerla
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
| | - Yefim Zaltsman
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
| | - Fabienne Burlina
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
| | - Isabel D. Alves
- Chimie et Biologie Des Membranes et Des Nanoobjets (CBMN)UMR 5248, CNRSPessacFrance
| | - Olivier Lequin
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
| | - Sandrine Sagan
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
| |
Collapse
|
12
|
Maniti O, Blanchard E, Trugnan G, Lamazière A, Ayala-Sanmartin J. Metabolic energy-independent mechanism of internalization for the cell penetrating peptide penetratin. Int J Biochem Cell Biol 2012; 44:869-75. [PMID: 22387312 DOI: 10.1016/j.biocel.2012.02.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Revised: 01/30/2012] [Accepted: 02/14/2012] [Indexed: 01/18/2023]
Abstract
Cellular uptake of vector peptides used for internalization of hydrophilic molecules into cells is known to follow two different pathways: direct translocation of the plasma membrane and internalization by endocytosis followed by release into the cytosol. These pathways differ in their energy dependence. The first does not need metabolic energy while the second requires metabolic energy. Herein we used erythrocytes and plasma membrane vesicles to study membrane perturbations induced by the cell penetrating peptide penetratin. The results show that cell penetrating peptides are able to be internalized by two metabolic energy-independent pathways: direct crossing of the plasma membrane and endocytosis-like mechanisms. The last mechanism involves the induction of membrane negative curvature resulting in invaginations that mimic the endosomal uptake in the absence of ATP. This new mechanism called "physical endocytosis" or "self-induced endocytosis" might explain different data concerning the independence or dependence on metabolic energy during cellular uptake and reveals the autonomous capacity of peptides to induce their internalization.
Collapse
Affiliation(s)
- Ofelia Maniti
- CNRS, UMR 7203, Laboratoire des Biomolécules, Groupe N. J. Conté, Paris, France
| | | | | | | | | |
Collapse
|
13
|
Distinct behaviour of the homeodomain derived cell penetrating peptide penetratin in interaction with different phospholipids. PLoS One 2010; 5:e15819. [PMID: 21209890 PMCID: PMC3012702 DOI: 10.1371/journal.pone.0015819] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Accepted: 11/24/2010] [Indexed: 11/19/2022] Open
Abstract
Background Penetratin is a protein transduction domain derived from the homeoprotein Antennapedia. Thereby it is currently used as a cell penetrating peptide to introduce diverse molecules into eukaryotic cells, and it could also be involved in the cellular export of transcription factors. Moreover, it has been shown that it is able to act as an antimicrobial agent. The mechanisms involved in all these processes are quite controversial. Methodology/Principal Findings In this article, we report spectroscopic, calorimetric and biochemical data on the penetratin interaction with three different phospholipids: phosphatidylcholine (PC) and phosphatidylethanolamine (PE) to mimic respectively the outer and the inner leaflets of the eukaryotic plasma membrane and phosphatidylglycerol (PG) to mimic the bacterial membrane. We demonstrate that with PC, penetratin is able to form vesicle aggregates with no major change in membrane fluidity and presents no well defined secondary structure organization. With PE, penetratin aggregates vesicles, increases membrane rigidity and acquires an α-helical structure. With PG membranes, penetratin does not aggregate vesicles but decreases membrane fluidity and acquires a structure with both α-helical and β–sheet contributions. Conclusions/Significance These data from membrane models suggest that the different penetratin actions in eukaryotic cells (membrane translocation during export and import) and on prokaryotes may result from different peptide and lipid structural arrangements. The data suggest that, for eukaryotic cell penetration, penetratin does not acquire classical secondary structure but requires a different conformation compared to that in solution.
Collapse
|
14
|
Lamazière A, Maniti O, Wolf C, Lambert O, Chassaing G, Trugnan G, Ayala-Sanmartin J. Lipid domain separation, bilayer thickening and pearling induced by the cell penetrating peptide penetratin. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2010; 1798:2223-30. [DOI: 10.1016/j.bbamem.2009.12.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2009] [Revised: 12/04/2009] [Accepted: 12/22/2009] [Indexed: 12/17/2022]
|