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Callahan AJ, Gandhesiri S, Travaline TL, Reja RM, Lozano Salazar L, Hanna S, Lee YC, Li K, Tokareva OS, Swiecicki JM, Loas A, Verdine GL, McGee JH, Pentelute BL. Mirror-image ligand discovery enabled by single-shot fast-flow synthesis of D-proteins. Nat Commun 2024; 15:1813. [PMID: 38418820 PMCID: PMC10901774 DOI: 10.1038/s41467-024-45634-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 01/26/2024] [Indexed: 03/02/2024] Open
Abstract
Widespread adoption of mirror-image biological systems presents difficulties in accessing the requisite D-protein substrates. In particular, mirror-image phage display has the potential for high-throughput generation of biologically stable macrocyclic D-peptide binders with potentially unique recognition modes but is hindered by the individualized optimization required for D-protein chemical synthesis. We demonstrate a general mirror-image phage display pipeline that utilizes automated flow peptide synthesis to prepare D-proteins in a single run. With this approach, we prepare and characterize 12 D-proteins - almost one third of all reported D-proteins to date. With access to mirror-image protein targets, we describe the successful discovery of six macrocyclic D-peptide binders: three to the oncoprotein MDM2, and three to the E3 ubiquitin ligase CHIP. Reliable production of mirror-image proteins can unlock the full potential of D-peptide drug discovery and streamline the study of mirror-image biology more broadly.
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Affiliation(s)
- Alex J Callahan
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Satish Gandhesiri
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Tara L Travaline
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA
| | - Rahi M Reja
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Lia Lozano Salazar
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Stephanie Hanna
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Yen-Chun Lee
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
- Department of Chemistry, National Cheng Kung University, No.1, University Road, Tainan City, 701, Taiwan
| | - Kunhua Li
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA
| | - Olena S Tokareva
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA
| | - Jean-Marie Swiecicki
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA
- Relay Therapeutics, Inc., 399 Binney Street, 2nd Floor, Cambridge, MA, 02139, USA
| | - Andrei Loas
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Gregory L Verdine
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA
- Department of Stem Cell and Regenerative Biology, Harvard University, 7 Divinity Avenue, Cambridge, MA, 02138, USA
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
- Department of Molecular and Cellular Biology, Harvard University, 52 Oxford Street, Cambridge, MA, 02138, USA
| | - John H McGee
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA.
| | - Bradley L Pentelute
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA.
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA, 02142, USA.
- Center for Environmental Health Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA.
- Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA, 02142, USA.
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2
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Tokareva OS, Li K, Travaline TL, Thomson TM, Swiecicki JM, Moussa M, Ramirez JD, Litchman S, Verdine GL, McGee JH. Recognition and reprogramming of E3 ubiquitin ligase surfaces by α-helical peptides. Nat Commun 2023; 14:6992. [PMID: 37914719 PMCID: PMC10620186 DOI: 10.1038/s41467-023-42395-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/09/2023] [Indexed: 11/03/2023] Open
Abstract
Molecules that induce novel interactions between proteins hold great promise for the study of biological systems and the development of therapeutics, but their discovery has been limited by the complexities of rationally designing interactions between three components, and because known binders to each protein are typically required to inform initial designs. Here, we report a general and rapid method for discovering α-helically constrained (Helicon) polypeptides that cooperatively induce the interaction between two target proteins without relying on previously known binders or an intrinsic affinity between the proteins. We show that Helicons are capable of binding every major class of E3 ubiquitin ligases, which are of great biological and therapeutic interest but remain largely intractable to targeting by small molecules. We then describe a phage-based screening method for discovering "trimerizer" Helicons, and apply it to reprogram E3s to cooperatively bind an enzyme (PPIA), a transcription factor (TEAD4), and a transcriptional coactivator (β-catenin).
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Affiliation(s)
| | - Kunhua Li
- FOG Pharmaceuticals Inc., Cambridge, MA, USA
- Kymera Therapeutics, Inc., Watertown, MA, USA
| | | | | | - Jean-Marie Swiecicki
- FOG Pharmaceuticals Inc., Cambridge, MA, USA
- Relay Therapeutics, Inc., Cambridge, MA, USA
| | | | | | | | - Gregory L Verdine
- FOG Pharmaceuticals Inc., Cambridge, MA, USA.
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA.
- Department of Chemistry and Chemical Biology, Harvard, University, Cambridge, MA, USA.
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA, USA.
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3
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Swiecicki JM, Santana JT, Imperiali B. A Strategic Approach for Fluorescence Imaging of Membrane Proteins in a Native-like Environment. Cell Chem Biol 2019; 27:245-251.e3. [PMID: 31831268 DOI: 10.1016/j.chembiol.2019.11.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 09/22/2019] [Accepted: 11/14/2019] [Indexed: 01/06/2023]
Abstract
Biological membranes are complex barriers in which membrane proteins and thousands of lipidic species participate in structural and functional interactions. Developing a strategic approach that allows uniform labeling of membrane proteins while maintaining a lipidic environment that retains functional interactions is highly desirable for in vitro fluorescence studies. Herein, we focus on complementing current methods by integrating the powerful processes of unnatural amino acid mutagenesis, bioorthogonal labeling, and the detergent-free membrane protein solubilization based on the amphiphilic styrene-maleic acid (SMA) polymer. Importantly, the SMA polymer preserves a thermodynamically stable shell of phospholipids. The approach that we present is both rapid and generalizable providing a population of uniquely labeled membrane proteins in lipid nanoparticles for quantitative fluorescence-based studies.
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Affiliation(s)
- Jean-Marie Swiecicki
- Department of Biology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Jordan Tyler Santana
- Department of Biology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Department of Physics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Barbara Imperiali
- Department of Biology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
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4
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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] [What about the content of this article? (0)] [Affiliation(s)] [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.
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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:
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5
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Entova S, Billod JM, Swiecicki JM, Martín-Santamaría S, Imperiali B. Insights into the key determinants of membrane protein topology enable the identification of new monotopic folds. eLife 2018; 7:40889. [PMID: 30168796 PMCID: PMC6133551 DOI: 10.7554/elife.40889] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 08/27/2018] [Indexed: 01/31/2023] Open
Abstract
Monotopic membrane proteins integrate into the lipid bilayer via reentrant hydrophobic domains that enter and exit on a single face of the membrane. Whereas many membrane-spanning proteins have been structurally characterized and transmembrane topologies can be predicted computationally, relatively little is known about the determinants of membrane topology in monotopic proteins. Recently, we reported the X-ray structure determination of PglC, a full-length monotopic membrane protein with phosphoglycosyl transferase (PGT) activity. The definition of this unique structure has prompted in vivo, biochemical, and computational analyses to understand and define key motifs that contribute to the membrane topology and to provide insight into the dynamics of the enzyme in a lipid bilayer environment. Using the new information gained from studies on the PGT superfamily we demonstrate that two motifs exemplify principles of topology determination that can be applied to the identification of reentrant domains among diverse monotopic proteins of interest.
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Affiliation(s)
- Sonya Entova
- Department of BiologyMassachusetts Institute of TechnologyCambridgeUnited States
| | - Jean-Marc Billod
- Department of Structural & Chemical BiologyCentro de Investigaciones BiológicasMadridSpain
| | - Jean-Marie Swiecicki
- Department of BiologyMassachusetts Institute of TechnologyCambridgeUnited States
| | | | - Barbara Imperiali
- Department of BiologyMassachusetts Institute of TechnologyCambridgeUnited States
- Department of ChemistryMassachusetts Institute of TechnologyCambridgeUnited States
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6
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Swiecicki JM, Thiebaut F, Di Pisa M, Gourdin-Bertin S, Tailhades J, Mansuy C, Burlina F, Chwetzoff S, Trugnan G, Chassaing G, Lavielle S. How to unveil self-quenched fluorophores and subsequently map the subcellular distribution of exogenous peptides. Sci Rep 2016; 6:20237. [PMID: 26839211 PMCID: PMC4738315 DOI: 10.1038/srep20237] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 12/23/2015] [Indexed: 02/07/2023] Open
Abstract
Confocal laser scanning microscopy (CLSM) is the most popular technique for mapping the subcellular distribution of a fluorescent molecule and is widely used to investigate the penetration properties of exogenous macromolecules, such as cell-penetrating peptides (CPPs), within cells. Despite the membrane-association propensity of all these CPPs, the signal of the fluorescently labeled CPPs did not colocalize with the plasma membrane. We studied the origin of this fluorescence extinction and the overall consequence on the interpretation of intracellular localizations from CLSM pictures. We demonstrated that this discrepancy originated from fluorescence self-quenching. The fluorescence was unveiled by a “dilution” protocol, i.e. by varying the ratio fluorescent/non-fluorescent CPP. This strategy allowed us to rank with confidence the subcellular distribution of several CPPs, contributing to the elucidation of the penetration mechanism. More generally, this study proposes a broadly applicable and reliable method to study the subcellular distribution of any fluorescently labeled molecules.
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Affiliation(s)
- Jean-Marie Swiecicki
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 4, Place Jussieu, 75005 Paris, France.,Ecole Normale Supérieure - PSL research University, Département de Chimie, 24 Rue Lhomond, 75005 Paris, France.,CNRS, UMR 7203, LBM, Paris, France
| | - Frédéric Thiebaut
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 4, Place Jussieu, 75005 Paris, France.,Ecole Normale Supérieure - PSL research University, Département de Chimie, 24 Rue Lhomond, 75005 Paris, France.,CNRS, UMR 7203, LBM, Paris, France
| | - Margherita Di Pisa
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 4, Place Jussieu, 75005 Paris, France.,Ecole Normale Supérieure - PSL research University, Département de Chimie, 24 Rue Lhomond, 75005 Paris, France.,CNRS, UMR 7203, LBM, Paris, France
| | - Simon Gourdin-Bertin
- Sorbonne Universités, UPMC Univ Paris 06, PHENIX, 4 Place Jussieu, 75005 Paris, France.,CNRS, UMR 8234, PHENIX, Paris, France
| | - Julien Tailhades
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 4, Place Jussieu, 75005 Paris, France.,Ecole Normale Supérieure - PSL research University, Département de Chimie, 24 Rue Lhomond, 75005 Paris, France.,CNRS, UMR 7203, LBM, Paris, France
| | - Christelle Mansuy
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 4, Place Jussieu, 75005 Paris, France.,Ecole Normale Supérieure - PSL research University, Département de Chimie, 24 Rue Lhomond, 75005 Paris, France.,CNRS, UMR 7203, LBM, Paris, France
| | - Fabienne Burlina
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 4, Place Jussieu, 75005 Paris, France.,Ecole Normale Supérieure - PSL research University, Département de Chimie, 24 Rue Lhomond, 75005 Paris, France.,CNRS, UMR 7203, LBM, Paris, France
| | - Serge Chwetzoff
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 4, Place Jussieu, 75005 Paris, France.,INSERM-ERL 1157, CHU Saint Antoine, 27 rue de Chaligny, 75012 Paris, France.,AP-HP, Hôpital Saint Antoine, 75012 Paris, France.,INRA, UR892, Virologie et Immunologie Moléculaires, 78350 Jouy-en-Jossas, France
| | - Germain Trugnan
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 4, Place Jussieu, 75005 Paris, France.,AP-HP, Hôpital Saint Antoine, 75012 Paris, France.,INRA, UR892, Virologie et Immunologie Moléculaires, 78350 Jouy-en-Jossas, France
| | - Gérard Chassaing
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 4, Place Jussieu, 75005 Paris, France.,Ecole Normale Supérieure - PSL research University, Département de Chimie, 24 Rue Lhomond, 75005 Paris, France.,CNRS, UMR 7203, LBM, Paris, France
| | - Solange Lavielle
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 4, Place Jussieu, 75005 Paris, France.,Ecole Normale Supérieure - PSL research University, Département de Chimie, 24 Rue Lhomond, 75005 Paris, France.,CNRS, UMR 7203, LBM, Paris, France
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7
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Swiecicki JM, Di Pisa M, Burlina F, Lécorché P, Mansuy C, Chassaing G, Lavielle S. Accumulation of cell-penetrating peptides in large unilamellar vesicles: A straightforward screening assay for investigating the internalization mechanism. Biopolymers 2015; 104:533-43. [DOI: 10.1002/bip.22652] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 03/30/2015] [Indexed: 12/22/2022]
Affiliation(s)
- Jean-Marie Swiecicki
- Sorbonne Universités; UPMC Univ Paris 06; LBM, 4, Place Jussieu 75005 Paris France
- Département de Chimie; Ecole Normale Supérieure-PSL Research University; 24, Rue Lhomond 75005 Paris France
- CNRS; UMR 7203, LBM 75005 Paris France
| | - Margherita Di Pisa
- Sorbonne Universités; UPMC Univ Paris 06; LBM, 4, Place Jussieu 75005 Paris France
- Département de Chimie; Ecole Normale Supérieure-PSL Research University; 24, Rue Lhomond 75005 Paris France
- CNRS; UMR 7203, LBM 75005 Paris France
| | - Fabienne Burlina
- Sorbonne Universités; UPMC Univ Paris 06; LBM, 4, Place Jussieu 75005 Paris France
- Département de Chimie; Ecole Normale Supérieure-PSL Research University; 24, Rue Lhomond 75005 Paris France
- CNRS; UMR 7203, LBM 75005 Paris France
| | - Pascaline Lécorché
- Sorbonne Universités; UPMC Univ Paris 06; LBM, 4, Place Jussieu 75005 Paris France
- Département de Chimie; Ecole Normale Supérieure-PSL Research University; 24, Rue Lhomond 75005 Paris France
- CNRS; UMR 7203, LBM 75005 Paris France
| | - Christelle Mansuy
- Sorbonne Universités; UPMC Univ Paris 06; LBM, 4, Place Jussieu 75005 Paris France
- Département de Chimie; Ecole Normale Supérieure-PSL Research University; 24, Rue Lhomond 75005 Paris France
- CNRS; UMR 7203, LBM 75005 Paris France
| | - Gérard Chassaing
- Sorbonne Universités; UPMC Univ Paris 06; LBM, 4, Place Jussieu 75005 Paris France
- Département de Chimie; Ecole Normale Supérieure-PSL Research University; 24, Rue Lhomond 75005 Paris France
- CNRS; UMR 7203, LBM 75005 Paris France
| | - Solange Lavielle
- Sorbonne Universités; UPMC Univ Paris 06; LBM, 4, Place Jussieu 75005 Paris France
- Département de Chimie; Ecole Normale Supérieure-PSL Research University; 24, Rue Lhomond 75005 Paris France
- CNRS; UMR 7203, LBM 75005 Paris France
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8
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Di Pisa M, Chassaing G, Swiecicki JM. When cationic cell-penetrating peptides meet hydrocarbons to enhance in-cell cargo delivery. J Pept Sci 2015; 21:356-69. [PMID: 25787823 DOI: 10.1002/psc.2755] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 12/30/2014] [Accepted: 01/07/2015] [Indexed: 01/03/2023]
Abstract
Cell-penetrating peptides (CPPs) are short sequences often rich in cationic residues with the remarkable ability to cross cell membranes. In the past 20 years, CPPs have gained wide interest and have found numerous applications in the delivery of bioactive cargoes to the cytosol and even the nucleus of living cells. The covalent or non-covalent addition of hydrocarbon moieties to cationic CPPs alters the hydrophobicity/hydrophilicity balance in their sequence. Such perturbation dramatically influences their interaction with the cell membrane, might induce self-assembling properties and modifies their intracellular trafficking. In particular, the introduction of lipophilic moieties changes the subcellular distribution of CPPs and might result in a dramatically increase of the internalization yield of the co-transported cargoes. Herein, we offer an overview of different aspects of the recent findings concerning the properties of CPPs covalently or non-covalently associated to hydrocarbons. We will focus on the impact of the hydrocarbon moieties on the delivery of various cargoes, either covalently or non-covalently bound to the modified CPPs. We will also provide some key elements to rationalize the influence of the hydrocarbons moieties on the cellular uptake. Furthermore, the recent in vitro and in vivo successful applications of acylated CPPs will be summarized to provide a broad view of the versatility of these modified CPPs as small-molecules and oligonucleotides vectors.
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Affiliation(s)
- Margherita Di Pisa
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7203, Laboratoire des Biomolécules, Paris, F-75005, France; CNRS, UMR 7203, Laboratoire des Biomolécules, Paris, F-75005, France; Ecole Normale Supérieure (ENS), UMR 7203, Laboratoire des Biomolécules, Département de Chimie, 24 Rue Lhomond, Paris, F-75005, France
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9
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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10
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Abstract
Escherichia coli swarmer cells coordinate their movement when confined in thin layers of fluid on agar surfaces. The motion and dynamics of cells, pairs of cells, and packs of cells can be recapitulated and studied in polymer microfluidic systems that are designed to constrain swarmer cell movement in thin layers of fluid between no-slip surfaces. The motion of elongated, smooth swimming E. coli cells in these environments reproduces the behavior of packs of cells observed at the leading edge of swarming communities and demonstrates the delicate balance between the physical dimensions of fluids and bacterial cell behavior.
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11
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Swiecicki JM, Bartsch A, Tailhades J, Di Pisa M, Heller B, Chassaing G, Mansuy C, Burlina F, Lavielle S. The Efficacies of Cell-Penetrating Peptides in Accumulating in Large Unilamellar Vesicles Depend on their Ability To Form Inverted Micelles. Chembiochem 2014; 15:884-91. [DOI: 10.1002/cbic.201300742] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Indexed: 11/08/2022]
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Serwa RA, Swiecicki JM, Homann D, Hackenberger CPR. Phosphoramidate-peptide synthesis by solution- and solid-phase Staudinger-phosphite reactions. J Pept Sci 2010; 16:563-7. [DOI: 10.1002/psc.1236] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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Wöbkenberg PH, Labram JG, Swiecicki JM, Parkhomenko K, Sredojevic D, Gisselbrecht JP, de Leeuw DM, Bradley DDC, Djukic JP, Anthopoulos TD. Ambipolar organic transistors and near-infrared phototransistors based on a solution-processable squarilium dye. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b919970e] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Serwa R, Majkut P, Horstmann B, Swiecicki JM, Gerrits M, Krause E, Hackenberger CPR. Site-specific PEGylation of proteins by a Staudinger-phosphite reaction. Chem Sci 2010. [DOI: 10.1039/c0sc00324g] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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