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Wang JW, Squire HJ, Goh NS, Ni HM, Lien E, Wong C, González-Grandío E, Landry MP. Delivered complementation in planta (DCIP) enables measurement of peptide-mediated protein delivery efficiency in plants. Commun Biol 2023; 6:840. [PMID: 37573467 PMCID: PMC10423278 DOI: 10.1038/s42003-023-05191-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 07/28/2023] [Indexed: 08/14/2023] Open
Abstract
Using a fluorescence complementation assay, Delivered Complementation in Planta (DCIP), we demonstrate cell-penetrating peptide-mediated cytosolic delivery of peptides and recombinant proteins in Nicotiana benthamiana. We show that DCIP enables quantitative measurement of protein delivery efficiency and enables functional screening of cell-penetrating peptides for in-planta protein delivery. Finally, we demonstrate that DCIP detects cell-penetrating peptide-mediated delivery of recombinantly expressed proteins such as mCherry and Lifeact into intact leaves. We also demonstrate delivery of a recombinant plant transcription factor, WUSCHEL (AtWUS), into N. benthamiana. RT-qPCR analysis of AtWUS delivery in Arabidopsis seedlings also suggests delivered WUS can recapitulate transcriptional changes induced by overexpression of AtWUS. Taken together, our findings demonstrate that DCIP offers a new and powerful tool for interrogating cytosolic delivery of proteins in plants and highlights future avenues for engineering plant physiology.
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Affiliation(s)
- Jeffrey W Wang
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Henry J Squire
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Natalie S Goh
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Heyuan Michael Ni
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Edward Lien
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Cerise Wong
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Eduardo González-Grandío
- Plant Molecular Genetics Department, Centro Nacional de Biotecnología-CSIC, Campus Universidad Autónoma de Madrid, Madrid, Spain
| | - Markita P Landry
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA.
- Innovative Genomics Institute, Berkeley, CA, 94720, USA.
- California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA, 94720, USA.
- Chan Zuckerberg Biohub, San Francisco, CA, 94063, USA.
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2
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Functionalised penetrating peptide-chondroitin sulphate‑gold nanoparticles: Synthesis, characterization, and applications as an anti-Alzheimer's disease drug. Int J Biol Macromol 2023; 230:123125. [PMID: 36603725 DOI: 10.1016/j.ijbiomac.2022.123125] [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: 10/24/2022] [Revised: 12/04/2022] [Accepted: 12/29/2022] [Indexed: 01/04/2023]
Abstract
The purpose of this study was to construct a transmembrane peptide-chondroitin sulphate‑gold nanoparticle (TAT-CS@Au) delivery system and investigate its activity as an anti-Alzheimer's disease (AD) drug. We successfully prepared TAT-CS@Au nanoparticles, investigated their anti-AD effects, and explored the possible mechanisms in in vitro models. TAT-CS@Au exhibited excellent cellular uptake and transport capacity, effectively inhibited the accumulation of Aβ1-40, and significantly reduced Aβ1-40-induced apoptosis in SH-SY5Y cells. Furthermore, TAT-CS@Au significantly reduced oxidative stress damage and cholinergic injury induced by Aβ1-40 by regulating intracellular concentrations of reactive oxygen species (ROS), malondialdehyde (MDA), glutathione peroxidase (GSH-Px), and acetylcholine (ACh). Western blotting results demonstrated that TAT-CS@Au inhibited aberrant tau phosphorylation (Ser199, Thr205, Ser404, and Ser396) through GSK3β inactivation. TAT-CS@Au decreased the levels of inflammatory factors, specifically TNF-α, IL-6, and IL-1β, by inhibiting NF-κB nuclear translocation by activating MAPK signalling pathways. Overall, these results indicate that TAT-CS@Au exhibits excellent transmembrane ability, inhibits Aβ1-40 accumulation, antagonises oxidative stress, reduces aberrant tau phosphorylation, and suppresses the expression of inflammatory factors. TAT-CS@Au may be a multi-target anti-AD drug with good cell permeability, providing new insights into the design and research of anti-AD therapeutics.
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Hadjicharalambous A, Bournakas N, Newman H, Skynner MJ, Beswick P. Antimicrobial and Cell-Penetrating Peptides: Understanding Penetration for the Design of Novel Conjugate Antibiotics. Antibiotics (Basel) 2022; 11:1636. [PMID: 36421280 PMCID: PMC9686638 DOI: 10.3390/antibiotics11111636] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/11/2022] [Accepted: 11/15/2022] [Indexed: 08/27/2023] Open
Abstract
Antimicrobial peptides (AMPs) are short oligopeptides that can penetrate the bacterial inner and outer membranes. Together with cell-penetrating peptides (CPPs), they are called membrane active peptides; peptides which can translocate across biological membranes. Over the last fifty years, attempts have been made to understand the molecular features that drive the interactions of membranes with membrane active peptides. This review examines the features of a membrane these peptides exploit for translocation, as well as the physicochemical characteristics of membrane active peptides which are important for translocation. Moreover, it presents examples of how these features have been used in recent years to create conjugates consisting of a membrane active peptide, called a "vector", attached to either a current or novel antibiotic, called a "cargo" or "payload". In addition, the review discusses what properties may contribute to an ideal peptide vector able to deliver cargoes across the bacterial outer membrane as the rising issue of antimicrobial resistance demands new strategies to be employed to combat this global public health threat.
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Affiliation(s)
- Andreas Hadjicharalambous
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1QN, UK
- BicycleTx Limited, Portway Building, Granta Park, Cambridge CB21 6GS, UK
| | - Nikolaos Bournakas
- BicycleTx Limited, Portway Building, Granta Park, Cambridge CB21 6GS, UK
| | - Hector Newman
- BicycleTx Limited, Portway Building, Granta Park, Cambridge CB21 6GS, UK
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Michael J. Skynner
- BicycleTx Limited, Portway Building, Granta Park, Cambridge CB21 6GS, UK
| | - Paul Beswick
- BicycleTx Limited, Portway Building, Granta Park, Cambridge CB21 6GS, UK
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Zorko M, Jones S, Langel Ü. Cell-penetrating peptides in protein mimicry and cancer therapeutics. Adv Drug Deliv Rev 2022; 180:114044. [PMID: 34774552 DOI: 10.1016/j.addr.2021.114044] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/29/2021] [Accepted: 11/04/2021] [Indexed: 12/14/2022]
Abstract
Extensive research has been undertaken in the pursuit of anticancer therapeutics. Many anticancer drugs require specificity of delivery to cancer cells, whilst sparing healthy tissue. Cell-penetrating peptides (CPPs), now well established as facilitators of intracellular delivery, have in recent years advanced to incorporate target specificity and thus possess great potential for the targeted delivery of anticancer cargoes. Though none have yet been approved for clinical use, this novel technology has already entered clinical trials. In this review we present CPPs, discuss their classification, mechanisms of cargo internalization and highlight strategies for conjugation to anticancer moieties including their incorporation into therapeutic proteins. As the mainstay of this review, strategies to build specificity into tumor targeting CPP constructs through exploitation of the tumor microenvironment and the use of tumor homing peptides are discussed, whilst acknowledging the extensive contribution made by CPP constructs to target specific protein-protein interactions integral to intracellular signaling pathways associated with tumor cell survival and progression. Finally, antibody/antigen CPP conjugates and their potential roles in cancer immunotherapy and diagnostics are considered. In summary, this review aims to harness the potential of CPP-aided drug delivery for future cancer therapies and diagnostics whilst highlighting some of the most recent achievements in selective delivery of anticancer drugs, including cytostatic drugs, to a range of tumor cells both in vitro and in vivo.
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Affiliation(s)
- Matjaž Zorko
- University of Ljubljana, Medical Faculty, Institute of Biochemistry and Molecular Genetics, Vrazov trg 2, 1000 Ljubljana, Slovenia
| | - Sarah Jones
- University of Wolverhampton, School of Pharmacy, Faculty of Science & Engineering, Wulfruna Street, Wolverhampton WV1 1LY, UK.
| | - Ülo Langel
- University of Stockholm, Department of Biochemistry and Biophysics, Svante Arrhenius väg 16, 106 91 Stockholm, Sweden; Institute of Technology, University of Tartu, Nooruse 1, Tartu, Estonia 50411, Estonia.
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5
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Design and Characterization of a Cell-Penetrating Peptide Derived from the SOX2 Transcription Factor. Int J Mol Sci 2021; 22:ijms22179354. [PMID: 34502261 PMCID: PMC8431565 DOI: 10.3390/ijms22179354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/23/2021] [Accepted: 08/23/2021] [Indexed: 11/25/2022] Open
Abstract
SOX2 is an oncogenic transcription factor overexpressed in nearly half of the basal-like triple-negative breast cancers associated with very poor outcomes. Targeting and inhibiting SOX2 is clinically relevant as high SOX2 mRNA levels are positively correlated with decreased overall survival and progression-free survival in patients affected with breast cancer. Given its key role as a master regulator of cell proliferation, SOX2 represents an important scaffold for the engineering of dominant-negative synthetic DNA-binding domains (DBDs) that act by blocking or interfering with the oncogenic activity of the endogenous transcription factor in cancer cells. We have synthesized an interference peptide (iPep) encompassing a truncated 24 amino acid long C-terminus of SOX2 containing a potential SOX-specific nuclear localization sequence, and the determinants of the binding of SOX2 to the DNA and to its transcription factor binding partners. We found that the resulting peptide (SOX2-iPep) possessed intrinsic cell penetration and promising nuclear localization into breast cancer cells, and decreased cellular proliferation of SOX2 overexpressing cell lines. The novel SOX2-iPep was found to exhibit a random coil conformation predominantly in solution. Molecular dynamics simulations were used to characterize the interactions of both the SOX2 transcription factor and the SOX2-iPep with FGF4-enhancer DNA in the presence of the POU domain of the partner transcription factor OCT4. Predictions of the free energy of binding revealed that the iPep largely retained the binding affinity for DNA of parental SOX2. This work will enable the future engineering of novel dominant interference peptides to transport different therapeutic cargo molecules such as anti-cancer drugs into cells.
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Zhou J, Li Y, Huang W, Shi W, Qian H. Source and exploration of the peptides used to construct peptide-drug conjugates. Eur J Med Chem 2021; 224:113712. [PMID: 34303870 DOI: 10.1016/j.ejmech.2021.113712] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 07/12/2021] [Accepted: 07/17/2021] [Indexed: 12/16/2022]
Abstract
Peptide-drug conjugates (PDCs) are a class of novel molecules widely designed and synthesized for delivering payload drugs. The peptide part plays a vital role in the whole molecule, because they determine the ability of the molecules to penetrate the membrane and target to the specific targets. Here, we introduce the source of different kinds of cell-penetrating peptides (CPPs) and cell-targeting peptides (CTPs) that have been used or could be used in constructing PDCs as well as their latest application in delivering drugs. What's more, the approaches of developing CPPs and CTPs and the techniques to discover novel peptides are focused on and summarized in the review. This review aims to help relevant researchers fast understand the research status of peptides in PDCs and carry forward the process of novel peptides discovery.
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Affiliation(s)
- Jiaqi Zhou
- Centre of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Yuanyuan Li
- Centre of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Wenlong Huang
- Centre of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China; Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, PR China
| | - Wei Shi
- Centre of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China.
| | - Hai Qian
- Centre of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, PR China; Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, PR China.
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7
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Fenton D, Phillips D, Maddison A, H George C, Ryves J, D Jones H. Cupid, a cell permeable peptide derived from amoeba, capable of delivering GFP into a diverse range of species. Sci Rep 2020; 10:13725. [PMID: 32792509 PMCID: PMC7426420 DOI: 10.1038/s41598-020-70532-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 07/29/2020] [Indexed: 12/14/2022] Open
Abstract
Cell permeating peptides (CPPs) are attracting great interest for use as molecular delivery vehicles for the transport of biologically active cargo across the cell membrane. The sequence of a novel CPP sequence, termed ‘Cupid’, was identified from the genome of Dictyostelium discoideum. A Cupid-Green Fluorescent Protein (Cupid-GFP) fusion protein was tested on mammalian, whole plant cells, plant leaf protoplast and fungal cell cultures and observed using confocal microscopy. GFP fluorescence builds up within the cell cytosol in 60 min, demonstrating Cupid-GFP has permeated them and folded correctly into its fluorescent form. Our combined data suggest Cupid can act as a molecular vehicle capable of delivering proteins, such as GFP, into the cytosol of a variety of cells.
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Affiliation(s)
- Daniel Fenton
- Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Penglais, Aberystwyth, Ceredigion, SY23 3DA, Wales, UK
| | - Dylan Phillips
- Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Penglais, Aberystwyth, Ceredigion, SY23 3DA, Wales, UK
| | - Anne Maddison
- Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Penglais, Aberystwyth, Ceredigion, SY23 3DA, Wales, UK
| | - Christopher H George
- Institute of Life Sciences, Swansea University Medical School, Singleton Park Campus, Swansea, SA2 8PP, Wales, UK
| | - Jonathan Ryves
- Cupid Peptides, Cardiff Medicentre, Heath Park, Cardiff, CF14 4UJ, Wales, UK.
| | - Huw D Jones
- Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Penglais, Aberystwyth, Ceredigion, SY23 3DA, Wales, UK.
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8
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Abstract
Approximately 75% of all disease-relevant human proteins, including those involved in intracellular protein-protein interactions (PPIs), are undruggable with the current drug modalities (i.e., small molecules and biologics). Macrocyclic peptides provide a potential solution to these undruggable targets because their larger sizes (relative to conventional small molecules) endow them the capability of binding to flat PPI interfaces with antibody-like affinity and specificity. Powerful combinatorial library technologies have been developed to routinely identify cyclic peptides as potent, specific inhibitors against proteins including PPI targets. However, with the exception of a very small set of sequences, the vast majority of cyclic peptides are impermeable to the cell membrane, preventing their application against intracellular targets. This Review examines common structural features that render most cyclic peptides membrane impermeable, as well as the unique features that allow the minority of sequences to enter the cell interior by passive diffusion, endocytosis/endosomal escape, or other mechanisms. We also present the current state of knowledge about the molecular mechanisms of cell penetration, the various strategies for designing cell-permeable, biologically active cyclic peptides against intracellular targets, and the assay methods available to quantify their cell-permeability.
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Affiliation(s)
- Patrick G. Dougherty
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12 Avenue, Columbus, Ohio 43210, United States
| | - Ashweta Sahni
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12 Avenue, Columbus, Ohio 43210, United States
| | - Dehua Pei
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12 Avenue, Columbus, Ohio 43210, United States
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9
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Libetti D, Bernardini A, Chiaramonte ML, Minuzzo M, Gnesutta N, Messina G, Dolfini D, Mantovani R. NF-YA enters cells through cell penetrating peptides. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1866:430-440. [PMID: 30296497 DOI: 10.1016/j.bbamcr.2018.10.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 09/10/2018] [Accepted: 10/03/2018] [Indexed: 12/26/2022]
Abstract
Cell Penetrating Peptides -CPPs- are short aminoacidic stretches present in proteins that have the ability to translocate the plasma membrane and facilitate delivery of various molecules. They are usually rich in basic residues, and organized as alpha helices. NF-Y is a transcription factor heterotrimer formed by two Histone Fold Domain -HFD- subunits and the sequence-specific NF-YA. NF-YA possesses two α-helices rich in basic residues. We show that it efficiently enters cells at nanomolar concentrations in the absence of carrier peptides. Mutagenesis identified at least two separate CPPs in the A1 and A2, which overlap with previously identified nuclear localization signals (NLS). The half-life of the transduced protein is short in human cancer cells, longer in mouse C2C12 myoblasts. The internalized NF-YA is capable of trimerization with the HFD subunits and binding to the target CCAAT box. Functionality is further suggested by protein transfection in C2C12 cells, leading to inhibition of differentiation to myotubes. In conclusion, NF-YA contains CPPs, hinting at novel -and unexpected- properties of this subunit.
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Affiliation(s)
- Debora Libetti
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Andrea Bernardini
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Maria Luisa Chiaramonte
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Mario Minuzzo
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Nerina Gnesutta
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Graziella Messina
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
| | - Diletta Dolfini
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy.
| | - Roberto Mantovani
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy.
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10
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Koo JH, Yoon H, Kim WJ, Cha D, Choi JM. Cell-Penetrating Function of the Poly(ADP-Ribose) (PAR)-Binding Motif Derived from the PAR-Dependent E3 Ubiquitin Ligase Iduna. Int J Mol Sci 2018. [PMID: 29518031 PMCID: PMC5877640 DOI: 10.3390/ijms19030779] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Iduna is a poly(ADP-ribose) (PAR)-dependent E3 ubiquitin ligase that regulates cellular responses such as proteasomal degradation and DNA repair upon interaction with its substrate. We identified a highly cationic region within the PAR-binding motif of Iduna; the region was similar among various species and showed amino acid sequence similarity with that of known cell-penetrating peptides (CPPs). We hypothesized that this Iduna-derived cationic sequence-rich peptide (Iduna) could penetrate the cell membrane and deliver macromolecules into cells. To test this hypothesis, we generated recombinant Iduna-conjugated enhanced green fluorescent protein (Iduna-EGFP) and its tandem-repeat form (d-Iduna-EGFP). Both Iduna-EGFP and d-Iduna-EGFP efficiently penetrated Jurkat cells, with the fluorescence signals increasing dose- and time-dependently. Tandem-repeats of Iduna and other CPPs enhanced intracellular protein delivery efficiency. The delivery mechanism involves lipid-raft-mediated endocytosis following heparan sulfate interaction; d-Iduna-EGFP was localized in the nucleus as well as the cytoplasm, and its residence time was much longer than that of other controls such as TAT and Hph-1. Moreover, following intravenous administration to C57/BL6 mice, d-Iduna-EGFP was efficiently taken up by various tissues, including the liver, spleen, and intestine suggesting that the cell-penetrating function of the human Iduna-derived peptide can be utilized for experimental and therapeutic delivery of macromolecules.
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Affiliation(s)
- Ja-Hyun Koo
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea.
- Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea.
| | - Heeseok Yoon
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea.
- Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea.
| | - Won-Ju Kim
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea.
- Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea.
| | - Donghun Cha
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea.
- Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea.
| | - Je-Min Choi
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea.
- Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea.
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11
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Moore EL, Arvidson R, Banks C, Urenda JP, Duong E, Mohammed H, Adams ME. Ampulexins: A New Family of Peptides in Venom of the Emerald Jewel Wasp, Ampulex compressa. Biochemistry 2018; 57:1907-1916. [DOI: 10.1021/acs.biochem.7b00916] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Ulasov AV, Rosenkranz AA, Sobolev AS. Transcription factors: Time to deliver. J Control Release 2017; 269:24-35. [PMID: 29113792 DOI: 10.1016/j.jconrel.2017.11.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 11/02/2017] [Accepted: 11/03/2017] [Indexed: 12/17/2022]
Abstract
Transcription factors (TFs) are at the center of the broad regulatory network orchestrating gene expression programs that elicit different biological responses. For a long time, TFs have been considered as potent drug targets due to their implications in the pathogenesis of a variety of diseases. At the same time, TFs, located at convergence points of cellular regulatory pathways, are powerful tools providing opportunities both for cell type change and for managing the state of cells. This task formulation requires the TF modulation problem to come to the fore. We review several ways to manage TF activity (small molecules, transfection, nanocarriers, protein-based approaches), analyzing their limitations and the possibilities to overcome them. Delivery of TFs could revolutionize the biomedical field. Whether this forecast comes true will depend on the ability to develop convenient technologies for targeted delivery of TFs.
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Affiliation(s)
- Alexey V Ulasov
- Department of Molecular Genetics of Intracellular Transport, Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilov St., 119334 Moscow, Russia
| | - Andrey A Rosenkranz
- Department of Molecular Genetics of Intracellular Transport, Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilov St., 119334 Moscow, Russia; Faculty of Biology, Moscow State University, 1-12 Leninskiye Gory St., 119234 Moscow, Russia
| | - Alexander S Sobolev
- Department of Molecular Genetics of Intracellular Transport, Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilov St., 119334 Moscow, Russia; Faculty of Biology, Moscow State University, 1-12 Leninskiye Gory St., 119234 Moscow, Russia.
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13
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HIF1A overexpression using cell-penetrating DNA-binding protein induces angiogenesis in vitro and in vivo. Mol Cell Biochem 2017; 437:99-107. [PMID: 28660411 DOI: 10.1007/s11010-017-3098-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 06/09/2017] [Indexed: 10/19/2022]
Abstract
Hypoxia-inducible factor-1 alpha (HIF1A) is an important transcription factor for angiogenesis. Recent studies have used the protein transduction domain (PTD) to deliver genes, but the PTD has not been used to induce the expression of HIF1A. This study aimed at using a novel PTD (Hph-1-GAL4; ARVRRRGPRR) to overexpress the HIF1A and identify the effects on angiogenesis in vitro and in vivo. Overexpression of HIF1A was induced using Hph-1-GAL4 in human umbilical vein/vascular endothelium cells (HUVEC). The expression levels of genes were analyzed by the quantitative real-time polymerase chain reaction (qPCR) after 2 and 4 days, respectively. An in vitro tube formation was performed using Diff-Quik staining. HIF1A and Hph-1-GAL4 were injected subcutaneously into the ventral area of each 5-week-old mouse. All of the plugs were retrieved after 1 week, and the gene expression levels were evaluated by qPCR. Each Matrigel plug was evaluated using the hemoglobin assay and hematoxylin and eosin (HE) staining. The expression levels of HIF1A and HIF1A target genes were significantly higher in HIF1A-transfected HUVEC than in control HUVEC in vitro. In the in vivo Matrigel plug assay, the amount of hemoglobin was significantly higher in the HIF1A-treatment group than in the PBS-treatment group. Blood vessels were identified in the HIF1A-treatment group. The expression levels of HIF1A, vascular endothelial growth factor (Vegf), and Cd31 were significantly higher in the HIF1A-treatment group than in the PBS-treatment group. These findings suggest that using Hph-1-G4D to overexpress HIF1A might be useful for transferring genes and regenerating tissues.
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14
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Kerkis I, de Brandão Prieto da Silva AR, Pompeia C, Tytgat J, de Sá Junior PL. Toxin bioportides: exploring toxin biological activity and multifunctionality. Cell Mol Life Sci 2017; 74:647-661. [PMID: 27554773 PMCID: PMC11107510 DOI: 10.1007/s00018-016-2343-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 07/27/2016] [Accepted: 08/15/2016] [Indexed: 10/21/2022]
Abstract
Toxins have been shown to have many biological functions and to constitute a rich source of drugs and biotechnological tools. We focus on toxins that not only have a specific activity, but also contain residues responsible for transmembrane penetration, which can be considered bioportides-a class of cell-penetrating peptides that are also intrinsically bioactive. Bioportides are potential tools in pharmacology and biotechnology as they help deliver substances and nanoparticles to intracellular targets. Bioportides characterized so far are peptides derived from human proteins, such as cytochrome c (CYCS), calcitonin receptor (camptide), and endothelial nitric oxide synthase (nosangiotide). However, toxins are usually disregarded as potential bioportides. In this review, we discuss the inclusion of some toxins and molecules derived thereof as a new class of bioportides based on structure activity relationship, minimization, and biological activity studies. The comparative analysis of the amino acid residue composition of toxin-derived bioportides and their short molecular variants is an innovative analytical strategy which allows us to understand natural toxin multifunctionality in vivo and plan novel pharmacological and biotechnological products. Furthermore, we discuss how many bioportide toxins have a rigid structure with amphiphilic properties important for both cell penetration and bioactivity.
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Affiliation(s)
- Irina Kerkis
- Laboratório de Genética, Instituto Butantan, Av. Vital Brasil 1500, São Paulo, SP, 05503-900, Brazil.
| | | | - Celine Pompeia
- Laboratório de Genética, Instituto Butantan, Av. Vital Brasil 1500, São Paulo, SP, 05503-900, Brazil
| | - Jan Tytgat
- Toxicology and Pharmacology, University of Leuven (KU Leuven), Louvain, Belgium
| | - Paulo L de Sá Junior
- Laboratório de Genética, Instituto Butantan, Av. Vital Brasil 1500, São Paulo, SP, 05503-900, Brazil.
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15
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Arasu A, Kumaresan V, Palanisamy R, Arasu MV, Al-Dhabi NA, Ganesh MR, Arockiaraj J. Bacterial membrane binding and pore formation abilities of carbohydrate recognition domain of fish lectin. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2017; 67:202-212. [PMID: 27729229 DOI: 10.1016/j.dci.2016.10.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 10/06/2016] [Accepted: 10/06/2016] [Indexed: 06/06/2023]
Abstract
Antimicrobial peptides (AMPs) are innate molecules that are found in a wide variety of species ranging from bacteria to humans. In recent years, excessive usage of antibiotics resulted in development of multi-drug resistant pathogens which made researchers to focus on AMPs as potential substitute for antibiotics. Lily type mannose-binding lectin is an extended super-family of structurally and evolutionarily related sugar binding proteins. These lectins are well-known AMPs which play important roles in fish defense mechanism. Here, we report a full-length lily type lectin-2 (LTL-2) identified from the cDNA library of striped murrel, Channa striatus (Cs). CsLTL-2 protein contained B-lectin domain along with three carbohydrate binding sites which is a prominent characteristic functional feature of LTL. The mRNA transcripts of CsLTL-2 were predominantly expressed in gills and considerably up-regulated upon infection with fungus (Aphanomyces invadans) and bacteria (Aeromonas hydrophila). To evaluate the antimicrobial activity of the carbohydrate binding region of CsLTL-2, the region was synthesized (QP13) and its bactericidal activity was analyzed. In addition, QP13 was labeled with fluorescein isothiocyanate (FITC) and its binding affinity with the bacterial cell membranes was analyzed. Minimum inhibitory concentration assay revealed that QP13 inhibited the growth of Escherichia coli at a concentration of 80 μM/ml. Confocal microscopic observation showed that FITC tagged QP13 specifically bound to the bacterial membrane. Fluorescence assisted cell sorter (FACS) assay showed that QP13 reduced the bacterial cell count drastically. Therefore, the mechanism of action of QP13 on E. coli cells was determined by propidium iodide internalization assay which confirmed that QP13 induced bacterial membrane disruption. Moreover, the peptide did not show any cytotoxicity towards fish peripheral blood leucocytes. Taken together, these results support the potentiality of QP13 that can be used as an antimicrobial agent against the tested pathogens.
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Affiliation(s)
- Abirami Arasu
- Division of Fisheries Biotechnology & Molecular Biology, Department of Biotechnology, Faculty of Science and Humanities, SRM University, Kattankulathur, 603 203, Chennai, Tamil Nadu, India; Department of Microbiology, SRM Arts & Science College, Kattankulathur, 603 203, Chennai, India
| | - Venkatesh Kumaresan
- Division of Fisheries Biotechnology & Molecular Biology, Department of Biotechnology, Faculty of Science and Humanities, SRM University, Kattankulathur, 603 203, Chennai, Tamil Nadu, India
| | - Rajesh Palanisamy
- Division of Fisheries Biotechnology & Molecular Biology, Department of Biotechnology, Faculty of Science and Humanities, SRM University, Kattankulathur, 603 203, Chennai, Tamil Nadu, India
| | - Mariadhas Valan Arasu
- Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Munuswamy-Ramanujam Ganesh
- Interdisciplinary Institute of Indian System of Medicine, SRM University, Kattankulathur, 603 203, Chennai, Tamil Nadu, India
| | - Jesu Arockiaraj
- Division of Fisheries Biotechnology & Molecular Biology, Department of Biotechnology, Faculty of Science and Humanities, SRM University, Kattankulathur, 603 203, Chennai, Tamil Nadu, India.
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16
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Emerging landscape of cell penetrating peptide in reprogramming and gene editing. J Control Release 2016; 226:124-37. [DOI: 10.1016/j.jconrel.2016.02.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/31/2016] [Accepted: 02/01/2016] [Indexed: 12/11/2022]
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17
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Deng XY, Wang H, Wang T, Fang XT, Zou LL, Li ZY, Liu CB. Non-viral methods for generating integration-free, induced pluripotent stem cells. Curr Stem Cell Res Ther 2015; 10:153-8. [PMID: 25248676 PMCID: PMC4460285 DOI: 10.2174/1574888x09666140923101914] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Accepted: 09/16/2014] [Indexed: 12/11/2022]
Abstract
Induced pluripotent stem (iPS) cells were created from mouse fibroblasts by induced expression
of Yamanaka factors, Oct3/4, Sox2, Klf4, and c-Myc. This technique has quickly resulted in an exponential
increase in the amount of pluripotency studies, and has provided a valuable tool in regenerative medicine. At
the same time, many methodologies to generate iPS cells have been reported, and are comprised mainly of
viral methods and non-viral methods. Although viral methods may not be applicable for clinical applications, various nonviral
methods have been reported in recent years, including DNA vector-based approaches, transfection of mRNA, transduction
of reprogramming proteins, and use of small molecule compounds. This review summarizes and evaluates these
non-viral methods.
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18
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Abstract
Nearly 30years ago, certain small, relatively nontoxic peptides were discovered to be capable of traversing the cell membrane. These cell-penetrating peptides, as they are now called, have been shown to not only be capable of crossing the cell membrane themselves but can also carry many different therapeutic agents into cells, including small molecules, plasmid DNA, siRNA, therapeutic proteins, viruses, imaging agents, and other various nanoparticles. Many cell-penetrating peptides have been derived from natural proteins, but several other cell-penetrating peptides have been developed that are either chimeric or completely synthetic. How cell-penetrating peptides are internalized into cells has been a topic of debate, with some peptides seemingly entering cells through an endocytic mechanism and others by directly penetrating the cell membrane. Although the entry mechanism is still not entirely understood, it seems to be dependent on the peptide type, the peptide concentration, the cargo the peptide transports, and the cell type tested. With new intracellular disease targets being discovered, cell-penetrating peptides offer an exciting approach for delivering drugs to these intracellular targets. There are hundreds of cell-penetrating peptides being studied for drug delivery, and ongoing studies are demonstrating their success both in vitro and in vivo.
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Affiliation(s)
- Joshua D Ramsey
- School of Chemical Engineering, Oklahoma State University, Stillwater, OK 74078, United States.
| | - Nicholas H Flynn
- School of Chemical Engineering, Oklahoma State University, Stillwater, OK 74078, United States
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19
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Zhang F, Xu CL, Liu CM. Drug delivery strategies to enhance the permeability of the blood-brain barrier for treatment of glioma. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:2089-100. [PMID: 25926719 PMCID: PMC4403597 DOI: 10.2147/dddt.s79592] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Gliomas are amongst the most insidious and destructive types of brain cancer and are associated with a poor prognosis, frequent recurrences, and extremely high lethality despite combination treatment of surgery, radiotherapy, and chemotherapy. The existence of the blood–brain barrier (BBB) restricts the delivery of therapeutic molecules into the brain and offers the clinical efficacy of many pharmaceuticals that have been demonstrated to be effective for other kinds of tumors. This challenge emphasizes the need to be able to deliver drugs effectively across the BBB to reach the brain parenchyma. Enhancement of the permeability of the BBB and being able to transport drugs across it has been shown to be a promising strategy to improve drug absorption and treatment efficacy. This review highlights the innovative technologies that have been introduced to enhance the permeability of the BBB and to obtain an optimal distribution and concentration of drugs in the brain to treat gliomas, such as nanotechniques, hyperthermia techniques, receptor-mediated transport, cell-penetrating peptides, and cell-mediated delivery.
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Affiliation(s)
- Fang Zhang
- School of Pharmacy, National First-Class Key Discipline for Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Chun-Lei Xu
- School of Pharmacy, National First-Class Key Discipline for Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Chun-Mei Liu
- School of Pharmacy, National First-Class Key Discipline for Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
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20
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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.
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Affiliation(s)
- Edmond Dupont
- Center for Interdisciplinary Research in Biology (CIRB), Labex Memolife, PSL Research University, College de France, Paris, France
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21
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Wang X, Jauch R. OCT4: A penetrant pluripotency inducer. ACTA ACUST UNITED AC 2014; 3:6. [PMID: 25408885 PMCID: PMC4230516 DOI: 10.1186/2045-9769-3-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 03/14/2014] [Indexed: 12/20/2022]
Abstract
Native OCT4 protein has the intrinsic ability of crossing cellular membranes to enter cells. This finding could revive efforts to induce pluripotency with proteins replacing nucleic acid-based approaches, and raises the intriguing question as to whether OCT4 can act non-cell-autonomously.
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Affiliation(s)
- Xuecong Wang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences (GIBH), 190 Kai Yuan Avenue, Science Park, Guangzhou, 510530 China
| | - Ralf Jauch
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences (GIBH), 190 Kai Yuan Avenue, Science Park, Guangzhou, 510530 China
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