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Kaygisiz K, Rauch-Wirth L, Iscen A, Hartenfels J, Kremer K, Münch J, Synatschke CV, Weil T. Peptide Amphiphiles as Biodegradable Adjuvants for Efficient Retroviral Gene Delivery. Adv Healthc Mater 2024; 13:e2301364. [PMID: 37947246 DOI: 10.1002/adhm.202301364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 10/20/2023] [Indexed: 11/12/2023]
Abstract
Retroviral gene delivery is the key technique for in vitro and ex vivo gene therapy. However, inefficient virion-cell attachment resulting in low gene transduction efficacy remains a major challenge in clinical applications. Adjuvants for ex vivo therapy settings need to increase transduction efficiency while being easily removed or degraded post-transduction to prevent the risk of venous embolism after infusing the transduced cells back to the bloodstream of patients, yet no such peptide system have been reported thus far. In this study, peptide amphiphiles (PAs) with a hydrophobic fatty acid and a hydrophilic peptide moiety that reveal enhanced viral transduction efficiency are introduced. The PAs form β-sheet-rich fibrils that assemble into positively charged aggregates, promoting virus adhesion to the cell membrane. The block-type amphiphilic sequence arrangement in the PAs ensures efficient cell-virus interaction and biodegradability. Good biodegradability is observed for fibrils forming small aggregates and it is shown that via molecular dynamics simulations, the fibril-fibril interactions of PAs are governed by fibril surface hydrophobicity. These findings establish PAs as additives in retroviral gene transfer, rivalling commercially available transduction enhancers in efficiency and degradability with promising translational options in clinical gene therapy applications.
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Affiliation(s)
- Kübra Kaygisiz
- Department Synthesis of Macromolecules, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Lena Rauch-Wirth
- Institute of Molecular Virology, Ulm University Medical Center, Meyerhofstraße 1, 89081, Ulm, Germany
| | - Aysenur Iscen
- Polymer Theory Department, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Jan Hartenfels
- Department Synthesis of Macromolecules, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Kurt Kremer
- Polymer Theory Department, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Jan Münch
- Institute of Molecular Virology, Ulm University Medical Center, Meyerhofstraße 1, 89081, Ulm, Germany
| | - Christopher V Synatschke
- Department Synthesis of Macromolecules, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Tanja Weil
- Department Synthesis of Macromolecules, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
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2
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Tian Y, Tirrell MV, LaBelle JL. Harnessing the Therapeutic Potential of Biomacromolecules through Intracellular Delivery of Nucleic Acids, Peptides, and Proteins. Adv Healthc Mater 2022; 11:e2102600. [PMID: 35285167 PMCID: PMC9232950 DOI: 10.1002/adhm.202102600] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 02/09/2022] [Indexed: 12/19/2022]
Abstract
Biomacromolecules have long been at the leading edge of academic and pharmaceutical drug development and clinical translation. With the clinical advances of new therapeutics, such as monoclonal antibodies and nucleic acids, the array of medical applications of biomacromolecules has broadened considerably. A major on-going effort is to expand therapeutic targets within intracellular locations. Owing to their large sizes, abundant charges, and hydrogen-bond donors and acceptors, advanced delivery technologies are required to deliver biomacromolecules effectively inside cells. In this review, strategies used for the intracellular delivery of three major forms of biomacromolecules: nucleic acids, proteins, and peptides, are highlighted. An emphasis is placed on synthetic delivery approaches and the major hurdles needed to be overcome for their ultimate clinical translation.
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Affiliation(s)
- Yu Tian
- Pritzker School of Molecular Engineering, The University of Chicago, 5640 S Ellis Ave, Chicago, IL, 60637, USA
| | - Matthew V Tirrell
- Pritzker School of Molecular Engineering, The University of Chicago, 5640 S Ellis Ave, Chicago, IL, 60637, USA
| | - James L LaBelle
- Department of Pediatrics, Section of Hematology/Oncology, The University of Chicago, 900 E 57th St, Chicago, IL, 60637, USA
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3
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Yang X, Qiu Q, Liu G, Ren H, Wang X, Lovell JF, Zhang Y. Traceless antibiotic-crosslinked micelles for rapid clearance of intracellular bacteria. J Control Release 2021; 341:329-340. [PMID: 34843813 DOI: 10.1016/j.jconrel.2021.11.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/06/2021] [Accepted: 11/22/2021] [Indexed: 02/07/2023]
Abstract
Effective delivery of antimicrobial agents to intracellular pathogens represents a major bottleneck for a wide variety of infectious diseases. To address this, we developed SIR-micelles(+), as a new delivery vehicle comprising antibiotic-loaded micelles with rapid self-immolation within cells for targeted delivery to macrophages, where most intracellular bacterial reside. After phagocytosis, SIR-micelles(+) rapidly release the pristine antibiotic after the cleavage of the disulfide bonds by intracellular reducing agents such as glutathione (GSH). Colistin, a hydrophilic and potent "last-resort" antibiotic used for the treatment of drug-resistant bacterial infection, was encapsulated in SIR-micelles with 40% yield and good short-term storage stability. Hydrophobic moieties and mannose ligands in SIR-micelles(+) enhanced the delivery of colistin into macrophages. The traceless and thiol-responsive release of colistin effectively eliminated intracellular Escherichia coli within twenty minutes. In a murine pneumonia model, SIR-micelles(+) significantly reduced bacterial lung burden of multidrug-resistant Klebsiella pneumoniae. Furthermore, SIR-micelles(+) improved the survival rate and reduced the bacterial burden of organs infected by intracellular bacteria transferred from donor mice. Using this formulation approach, the nephrotoxicity and neurotoxicity induced by antibiotic were reduced by about 5- 15 fold. Thus, SIR-micelles(+) represent a new class of material that can be used for targeting treatment of intracellular and drug-resistant pathogens.
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Affiliation(s)
- Xingyue Yang
- School of Chemical Engineering and Technology, Tianjin University, 300350, PR China; Key Laboratory of Systems Bioengineering (Ministry of Education) Tianjin University, Tianjin 300072, PR China
| | - Qian Qiu
- School of Chemical Engineering and Technology, Tianjin University, 300350, PR China; Key Laboratory of Systems Bioengineering (Ministry of Education) Tianjin University, Tianjin 300072, PR China
| | - Gengqi Liu
- School of Chemical Engineering and Technology, Tianjin University, 300350, PR China; Key Laboratory of Systems Bioengineering (Ministry of Education) Tianjin University, Tianjin 300072, PR China
| | - He Ren
- School of Chemical Engineering and Technology, Tianjin University, 300350, PR China; Key Laboratory of Systems Bioengineering (Ministry of Education) Tianjin University, Tianjin 300072, PR China
| | - Xiaojie Wang
- School of Chemical Engineering and Technology, Tianjin University, 300350, PR China; Key Laboratory of Systems Bioengineering (Ministry of Education) Tianjin University, Tianjin 300072, PR China
| | - Jonathan F Lovell
- Department of Biomedical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Yumiao Zhang
- School of Chemical Engineering and Technology, Tianjin University, 300350, PR China; Key Laboratory of Systems Bioengineering (Ministry of Education) Tianjin University, Tianjin 300072, PR China.
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4
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O'Neill CL, Shrimali PC, Clapacs ZP, Files MA, Rudra JS. Peptide-based supramolecular vaccine systems. Acta Biomater 2021; 133:153-167. [PMID: 34010691 PMCID: PMC8497425 DOI: 10.1016/j.actbio.2021.05.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/01/2021] [Accepted: 05/05/2021] [Indexed: 12/15/2022]
Abstract
Currently approved replication-competent and inactivated vaccines are limited by excessive reactogenicity and poor safety profiles, while subunit vaccines are often insufficiently immunogenic without co-administering exogenous adjuvants. Self-assembling peptide-, peptidomimetic-, and protein-based biomaterials offer a means to overcome these challenges through their inherent modularity, multivalency, and biocompatibility. As these scaffolds are biologically derived and present antigenic arrays reminiscent of natural viruses, they are prone to immune recognition and are uniquely capable of functioning as self-adjuvanting vaccine delivery vehicles that improve humoral and cellular responses. Beyond this intrinsic immunological advantage, the wide range of available amino acids allows for facile de novo design or straightforward modifications to existing sequences. This has permitted the development of vaccines and immunotherapies tailored to specific disease models, as well as generalizable platforms that have been successfully applied to prevent or treat numerous infectious and non-infectious diseases. In this review, we briefly introduce the immune system, discuss the structural determinants of coiled coils, β-sheets, peptide amphiphiles, and protein subunit nanoparticles, and highlight the utility of these materials using notable examples of their innate and adaptive immunomodulatory capacity.
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Affiliation(s)
- Conor L O'Neill
- Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, United States.
| | - Paresh C Shrimali
- Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, United States.
| | - Zain P Clapacs
- Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, United States.
| | - Megan A Files
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas 77555, United States.
| | - Jai S Rudra
- Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, United States.
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5
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Liu G, Jiang Z, Lovell JF, Zhang L, Zhang Y. Design of a Thiol-Responsive, Traceless Prodrug with Rapid Self-Immolation for Cancer Chemotherapy. ACS APPLIED BIO MATERIALS 2021; 4:4982-4989. [PMID: 35007046 DOI: 10.1021/acsabm.1c00247] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Prodrugs can be formed by chemical modification of the existing active pharmaceutical ingredients (APIs); however, this often sacrifices their functional efficacy. Self-immolative linkers have recently attracted attention, as they can be designed to release pristine APIs. Herein, we report a strategy to generate a self-immolative prodrug (SIP) that can release pristine doxorubicin (DOX). Compared to conventional linkers, the key SIP DOX (KSIP-DOX) developed here can rapidly and quantitatively release the API due to its strong leaving group after reduction by thiol groups, which are present in tumors. KSIP-DOX has enhanced cellular uptake and improved anticancer efficacy, demonstrating its utility for cancer treatment.
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Affiliation(s)
- Gengqi Liu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
| | - Zhen Jiang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
| | - Jonathan F Lovell
- Department of Biomedical Engineering, The State University of New York at Buffalo, Buffalo, New York 14260, United States
| | - Lei Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
| | - Yumiao Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
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6
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Jung BT, Lim M, Jung K, Li M, Dong H, Dube N, Xu T. Designing sub-20 nm self-assembled nanocarriers for small molecule delivery: Interplay among structural geometry, assembly energetics, and cargo release kinetics. J Control Release 2021; 329:538-551. [PMID: 32971202 DOI: 10.1016/j.jconrel.2020.09.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/17/2020] [Accepted: 09/18/2020] [Indexed: 02/07/2023]
Abstract
Biological constraints in diseased tissues have motivated the need for small nanocarriers (10-30 nm) to achieve sufficient vascular extravasation and pervasive tumor penetration. This particle size limit is only an order of magnitude larger than small molecules, such that cargo loading is better described by co-assembly processes rather than simple encapsulation. Understanding the structural, kinetic, and energetic contributions of carrier-cargo co-assembly is thus critical to achieve molecular-level control towards predictable in vivo behavior. These interconnected set of properties were systematically examined using sub-20 nm self-assembled nanocarriers known as three-helix micelles (3HM). Both hydrophobicity and the "geometric packing parameter" dictate small molecule compatibility with 3HM's alkyl tail core. Planar obelisk-like apomorphine and doxorubicin (DOX) molecules intercalated well within the 3HM core and near the core-shell interface, forming an integral component to the co-assembly, as corroborated by small-angle X-ray and neutron-scattering structural studies. DOX promoted crystalline alkyl tail ordering, which significantly increased (+63%) the activation energy of 3HM subunit exchange. Subsequently, 3HM-DOX displayed slow-release kinetics (t1/2 = 40 h) at physiological temperatures, with ~50× greater cargo preference for the micelle core as described by two drug partitioning coefficients (micellar core/shell Kp1 ~ 24, and shell/bulk solvent Kp2 ~ 2). The geometric and energetic insights between nanocarrier and their small molecule cargos developed here will aid in broader efforts to deconvolute the interconnected properties of carrier-drug co-assemblies. Adding this knowledge to pharmacological and immunological explorations will expand our understanding of nanomedicine behavior throughout all the physical and in vivo processes they are intended to encounter.
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Affiliation(s)
- Benson T Jung
- Department of Materials Science and Engineering, University of California, Berkeley, 210 Hearst Memorial Mining Building, Berkeley, CA 94720, United States
| | - Marc Lim
- UCB-UCSF Graduate Program in Bioengineering, University of California, Berkeley, 210 Hearst Memorial Mining Building, Berkeley, CA 94720, United States
| | - Katherine Jung
- Department of Chemistry, University of California, Berkeley, 210 Hearst Memorial Mining Building, Berkeley, CA 94720, United States
| | - Michael Li
- Department of Chemistry, University of California, Berkeley, 210 Hearst Memorial Mining Building, Berkeley, CA 94720, United States
| | - He Dong
- Department of Materials Science and Engineering, University of California, Berkeley, 210 Hearst Memorial Mining Building, Berkeley, CA 94720, United States
| | - Nikhil Dube
- Department of Materials Science and Engineering, University of California, Berkeley, 210 Hearst Memorial Mining Building, Berkeley, CA 94720, United States
| | - Ting Xu
- Department of Materials Science and Engineering, University of California, Berkeley, 210 Hearst Memorial Mining Building, Berkeley, CA 94720, United States; Department of Chemistry, University of California, Berkeley, 210 Hearst Memorial Mining Building, Berkeley, CA 94720, United States; Material Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, CA 94720, United States.
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7
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Abstract
Treatment strategies in clinics have been shifting from small molecules to protein drugs due to the promising results of a highly specific mechanism of action and reduced toxicity. Despite their prominent roles in disease treatment, delivery of the protein therapeutics is challenging due to chemical instability, immunogenicity and biological barriers. Peptide hydrogels with spatiotemporally tunable properties have shown an outstanding potential to deliver complex protein therapeutics, maintain drug efficacy and stability over time, mimicking the extracellular matrix, and responding to external stimuli. In this review, we present recent advances in peptide hydrogel design strategies, protein release kinetics and mechanisms for protein drug delivery in cellular engineering, tissue engineering, immunotherapy and disease treatments.
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8
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Activating the Intrinsic Pathway of Apoptosis Using BIM BH3 Peptides Delivered by Peptide Amphiphiles with Endosomal Release. MATERIALS 2019; 12:ma12162567. [PMID: 31408950 PMCID: PMC6719084 DOI: 10.3390/ma12162567] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/02/2019] [Accepted: 08/05/2019] [Indexed: 12/13/2022]
Abstract
Therapeutic manipulation of the BCL-2 family using BH3 mimetics is an emerging paradigm in cancer treatment and immune modulation. For example, peptides mimicking the BIM BH3 helix can directly target the full complement of anti- and pro-apoptotic BCL-2 proteins to trigger apoptosis. This study has incorporated the potent BH3 α-helical death domain of BIM into peptide amphiphile (PA) nanostructures designed to facilitate cellular uptake and induce cell death. This study shows that these PA nanostructures are quickly incorporated into cells, are able to specifically bind BCL-2 proteins, are stable at physiologic temperatures and pH, and induce dose-dependent apoptosis in cells. The incorporation of a cathepsin B cleavable linker between the BIM BH3 peptide and the hydrophobic tail resulted in increased intracellular accumulation and mitochondrial co-localization of the BIM BH3 peptide while also improving BCL-2 family member binding and apoptotic reactivation. This PA platform represents a promising new strategy for intracellular therapeutic peptide delivery for the disruption of intracellular protein:protein interactions.
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9
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Ziemba C, Khavkin M, Priftis D, Acar H, Mao J, Benami M, Gottlieb M, Tirrell M, Kaufman Y, Herzberg M. Antifouling Properties of a Self-Assembling Glutamic Acid-Lysine Zwitterionic Polymer Surface Coating. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1699-1713. [PMID: 29641904 DOI: 10.1021/acs.langmuir.8b00181] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
There is a need for the development of antifouling materials to resist adsorption of biomacromolecules. Here we describe the preparation of a novel zwitterionic block copolymer with the potential to prevent or delay the formation of microbial biofilms. The block copolymer comprised a zwitterionic (hydrophilic) section of alternating glutamic acid (negatively charged) and lysine (positively charged) units and a hydrophobic polystyrene section. Cryo-TEM and dynamic-light-scattering (DLS) results showed that, on average, the block copolymer self-assembled into 7-nm-diameter micelles in aqueous solutions (0 to 100 mM NaCl, pH 6). Quartz crystal microbalance with dissipation monitoring (QCM-D), atomic force microscopy (AFM), and contact angle measurements demonstrated that the block copolymer self-assembled into a brush-like monolayer on polystyrene surfaces. The brush-like monolayer produced from a 100 mg/L block copolymer solution exhibited an average distance, d, of approximately 4-8 nm between each block copolymer molecule (center to center). Once the brush-like monolayer self-assembled, it reduced EPS adsorption onto the polystyrene surface by ∼70% (mass), reduced the rate of bacterial attachment by >80%, and inhibited the development of thick biofilms. QCM-D results revealed that the EPS molecules penetrate between the chains of the brush and adsorb onto the polystyrene surface. Additionally, AFM analyses showed that the brush-like monolayer prevents the adhesion of large (> d) hydrophilic colloids onto the surface via hydration repulsion; however, molecules or colloids small enough to fit between the brush polymers (< d) were able to be adsorbed onto the surface via van der Waals interactions. Overall, we found that the penetration of extracellular organelles, as well as biopolymers through the brush, is critical for the failure of the antifouling coating, and likely could be prevented through tuning of the brush density. Stability and biofilm development testing on multiple surfaces (polypropylene, glass, and stainless steel) support practical applications of this novel block copolymer.
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Affiliation(s)
- Christopher Ziemba
- The Jacob Blaustein Institutes for Desert Research, Zuckerberg Institute for Water Research, The Albert Katz International School of Desert Studies , Ben Gurion University of the Negev , Sede Boqer Campus, Midreshet Ben-Gurion , 84990 , Israel
| | - Maria Khavkin
- The Jacob Blaustein Institutes for Desert Research, Zuckerberg Institute for Water Research, The Albert Katz International School of Desert Studies , Ben Gurion University of the Negev , Sede Boqer Campus, Midreshet Ben-Gurion , 84990 , Israel
| | - Dimitris Priftis
- Institute for Molecular Engineering , University of Chicago , Chicago , Illinois 60637 , United States
| | - Handan Acar
- Institute for Molecular Engineering , University of Chicago , Chicago , Illinois 60637 , United States
| | - Jun Mao
- Institute for Molecular Engineering , University of Chicago , Chicago , Illinois 60637 , United States
| | - Maya Benami
- The Jacob Blaustein Institutes for Desert Research, Zuckerberg Institute for Water Research, The Albert Katz International School of Desert Studies , Ben Gurion University of the Negev , Sede Boqer Campus, Midreshet Ben-Gurion , 84990 , Israel
| | - Moshe Gottlieb
- Department of Chemical Engineering , Ben Gurion University of the Negev , Beer-Sheva 84105 Israel
| | - Matthew Tirrell
- Institute for Molecular Engineering , University of Chicago , Chicago , Illinois 60637 , United States
- Materials Science Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | - Yair Kaufman
- The Jacob Blaustein Institutes for Desert Research, Zuckerberg Institute for Water Research, The Albert Katz International School of Desert Studies , Ben Gurion University of the Negev , Sede Boqer Campus, Midreshet Ben-Gurion , 84990 , Israel
| | - Moshe Herzberg
- The Jacob Blaustein Institutes for Desert Research, Zuckerberg Institute for Water Research, The Albert Katz International School of Desert Studies , Ben Gurion University of the Negev , Sede Boqer Campus, Midreshet Ben-Gurion , 84990 , Israel
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10
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Shah S, Leon L. Structural transitions and encapsulation selectivity of thermoresponsive polyelectrolyte complex micelles. J Mater Chem B 2019; 7:6438-6448. [DOI: 10.1039/c9tb01194c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Polyelectrolyte complex micelles containing thermoresponsive coronas can exhibit varying morphologies and encapsulate multivalently charged therapeutics for drug delivery applications.
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Affiliation(s)
- Sachit Shah
- Department of Materials Science and Engineering
- University of Central Florida
- Orlando
- USA
| | - Lorraine Leon
- Department of Materials Science and Engineering
- University of Central Florida
- Orlando
- USA
- NanoScience Technology Center
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11
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Menacho-Melgar R, Decker JS, Hennigan JN, Lynch MD. A review of lipidation in the development of advanced protein and peptide therapeutics. J Control Release 2018; 295:1-12. [PMID: 30579981 DOI: 10.1016/j.jconrel.2018.12.032] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/16/2018] [Accepted: 12/18/2018] [Indexed: 12/22/2022]
Abstract
The use of biologics (peptide and protein based drugs) has increased significantly over the past few decades. However, their development has been limited by their short half-life, immunogenicity and low membrane permeability, restricting most therapies to extracellular targets and administration by injection. Lipidation is a clinically-proven post-translational modification that has shown great promise to address these issues: improving half-life, reducing immunogenicity and enabling intracellular uptake and delivery across epithelia. Despite its great potential, lipidation remains an underutilized strategy in the clinical translation of lead biologics. We review how lipidation can overcome common challenges in biologics development as well as highlight gaps in our understanding of the effect of lipidation on therapeutic efficacy, where increased research and development efforts may lead to next-generation drugs.
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Affiliation(s)
| | - John S Decker
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | | | - Michael D Lynch
- Department of Biomedical Engineering, Duke University, Durham, NC, USA.
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12
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Shape Effects of Peptide Amphiphile Micelles for Targeting Monocytes. Molecules 2018; 23:molecules23112786. [PMID: 30373234 PMCID: PMC6278295 DOI: 10.3390/molecules23112786] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 10/23/2018] [Accepted: 10/25/2018] [Indexed: 12/12/2022] Open
Abstract
Peptide amphiphile micelles (PAMs) are a nanoparticle platform that have gained popularity for their targeting versatility in a wide range of disease models. An important aspect of micelle design is considering the type of hydrophobic moiety used to synthesize the PAM, which can act as a contributing factor regarding their morphology and targeting capabilities. To delineate and compare the characteristics of spherical and cylindrical micelles, we incorporated the monocyte-targeting chemokine, monocyte chemoattractant protein-1 (MCP-1), into our micelles (MCP-1 PAMs). We report that both shapes of nanoparticles were biocompatible with monocytes and enhanced the secondary structure of the MCP-1 peptide, thereby improving the ability of the micelles to mimic the native MCP-1 protein structure. As a result, both shapes of MCP-1 PAMs effectively targeted monocytes in an in vitro binding assay with murine monocytes. Interestingly, cylindrical PAMs showed a greater ability to attract monocytes compared to spherical PAMs in a chemotaxis assay. However, the surface area, the multivalent display of peptides, and the zeta potential of PAMs may also influence their biomimetic properties. Herein, we introduce variations in the methods of PAM synthesis and discuss the differences in PAM characteristics that can impact the recruitment of monocytes, a process associated with disease and cancer progression.
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13
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Smith JD, Cardwell LN, Porciani D, Nguyen JA, Zhang R, Gallazzi F, Tata RR, Burke DH, Daniels MA, Ulery BD. Aptamer-displaying peptide amphiphile micelles as a cell-targeted delivery vehicle of peptide cargoes. Phys Biol 2018; 15:065006. [PMID: 30124431 DOI: 10.1088/1478-3975/aadb68] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Peptide amphiphile micelles (PAMs) are attractive vehicles for the delivery of a variety of therapeutic and prophylactic peptides. However, a key limitation of PAMs is their lack of preferential targeting ability. In this paper, we describe our design of a PAM system that incorporates a DNA oligonucleotide amphiphile (antitail amphiphile-AA) to form A/PAMs. A cell-targeting DNA aptamer with a 3' extension sequence (tail) complementary to the AA is annealed to the surface to form aptamer-displaying PAMs (Aptamer~A/PAMs). Aptamer~A/PAMs are small, anionic, stable nanoparticles capable of delivering a large mass percentage peptide amphiphile (PA) compared to targeting DNA components. Aptamer~A/PAMs are stable for over 4 h in the presence of biological fluids. Additionally, the aptamer retains its cell-targeting properties when annealed to the A/PAM, thus leading to enhanced delivery to a specifically-targeted B-cell leukemia cell line. This exciting modular technology can be readily used with a library of different targeting aptamers and PAs, capable of improving the bioavailability and potency of the peptide cargo.
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Affiliation(s)
- Josiah D Smith
- Department of Biomedical, Biological and Chemical Engineering, University of Missouri, Columbia, MO, United States of America
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14
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Mertens M, Hilsch M, Haralampiev I, Volkmer R, Wessig P, Müller P. Synthesis and Characterization of a New Bifunctionalized, Fluorescent, and Amphiphilic Molecule for Recruiting SH-Containing Molecules to Membranes. Chembiochem 2018; 19:1643-1647. [PMID: 29785742 DOI: 10.1002/cbic.201800268] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Indexed: 11/10/2022]
Abstract
This study describes the synthesis and characterization of an amphiphilic construct intended to recruit SH-containing molecules to membranes. The construct consists of 1) an aliphatic chain to enable anchoring within membranes, 2) a maleimide moiety to react with the sulfhydryl group of a soluble (bio)molecule, and 3) a fluorescence moiety to allow the construct to be followed by fluorescence spectroscopy and microscopy. It is shown that the construct can be incorporated into preformed membranes, thus allowing application of the approach with biological membranes. The close proximity between the fluorophore and the maleimide moiety within the construct causes fluorescence quenching. This allows monitoring of the reaction with SH-containing molecules by measurement of increases in fluorescence intensity and lifetime. Notably, the construct distributes into laterally ordered membrane domains of lipid vesicles, which is probably triggered by the length of its membrane anchor. The advantages of the new construct can be employed for several biological, biotechnological, and medicinal applications.
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Affiliation(s)
- Monique Mertens
- University of Potsdam, Department of Chemistry, Karl-Liebknecht-Strasse 24-25, 14476, Potsdam, Germany
| | - Malte Hilsch
- Humboldt Universität zu Berlin, Department of Biology, Invalidenstrasse 42, 10115, Berlin, Germany
| | - Ivan Haralampiev
- Humboldt Universität zu Berlin, Department of Biology, Invalidenstrasse 42, 10115, Berlin, Germany
| | - Rudolf Volkmer
- Institute for Medical Immunology, Charité, University Medicine Berlin, Hessische Strasse 3, 10115, Berlin, Germany
| | - Pablo Wessig
- University of Potsdam, Department of Chemistry, Karl-Liebknecht-Strasse 24-25, 14476, Potsdam, Germany
| | - Peter Müller
- Humboldt Universität zu Berlin, Department of Biology, Invalidenstrasse 42, 10115, Berlin, Germany
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15
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Acar H, Ting JM, Srivastava S, LaBelle JL, Tirrell MV. Molecular engineering solutions for therapeutic peptide delivery. Chem Soc Rev 2018; 46:6553-6569. [PMID: 28902203 DOI: 10.1039/c7cs00536a] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Proteins and their interactions in and out of cells must be well-orchestrated for the healthy functioning and regulation of the body. Even the slightest disharmony can cause diseases. Therapeutic peptides are short amino acid sequences (generally considered <50 amino acids) that can naturally mimic the binding interfaces between proteins and thus, influence protein-protein interactions. Because of their fidelity of binding, peptides are a promising next generation of personalized medicines to reinstate biological harmony. Peptides as a group are highly selective, relatively safe, and biocompatible. However, they are also vulnerable to many in vivo pharmacologic barriers limiting their clinical translation. Current advances in molecular, chemical, and nanoparticle engineering are helping to overcome these previously insurmountable obstacles and improve the future of peptides as active and highly selective therapeutics. In this review, we focus on self-assembled vehicles as nanoparticles to carry and protect therapeutic peptides through this journey, and deliver them to the desired tissue.
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Affiliation(s)
- Handan Acar
- Institute for Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA.
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16
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Edwards-Gayle CJC, Hamley IW. Self-assembly of bioactive peptides, peptide conjugates, and peptide mimetic materials. Org Biomol Chem 2018; 15:5867-5876. [PMID: 28661532 DOI: 10.1039/c7ob01092c] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Molecular self-assembly is a multi-disciplinary field of research, with potential chemical and biological applications. One of the main driving forces of self-assembly is molecular amphiphilicity, which can drive formation of complex and stable nanostructures. Self-assembling peptide and peptide conjugates have attracted great attention due to their biocompatibility, biodegradability and biofunctionality. Understanding assembly enables the better design of peptide amphiphiles which may form useful and functional nanostructures. This review covers self-assembly of amphiphilic peptides and peptide mimetic materials, as well as their potential applications.
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Affiliation(s)
| | - Ian W Hamley
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK.
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17
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A zwitterionic block-copolymer, based on glutamic acid and lysine, reduces the biofouling of UF and RO membranes. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.12.042] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Abstract
Peptide subunit vaccines enable the specific activation of an immune response without the shortcomings of killed or attenuated pathogens. However, peptide subunit vaccines tend to be less immunogenic than those based on whole organisms. To improve peptide immunogenicity, biomaterials-based platforms have been developed. One such platform, the peptide amphiphile micelle platform, has displayed a unique ability to dramatically improve observed immune responses. Here we describe the design, synthesis, characterization, and application of peptide amphiphile micelles to elicit a robust immune response.
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Affiliation(s)
- John C Barrett
- Institute for Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - Matthew V Tirrell
- Institute for Molecular Engineering, University of Chicago, Chicago, IL, USA.
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19
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Acar H, Samaeekia R, Schnorenberg MR, Sasmal DK, Huang J, Tirrell MV, LaBelle JL. Cathepsin-Mediated Cleavage of Peptides from Peptide Amphiphiles Leads to Enhanced Intracellular Peptide Accumulation. Bioconjug Chem 2017; 28:2316-2326. [PMID: 28771332 DOI: 10.1021/acs.bioconjchem.7b00364] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Peptides synthesized in the likeness of their native interaction domain(s) are natural choices to target protein-protein interactions (PPIs) due to their fidelity of orthostatic contact points between binding partners. Despite therapeutic promise, intracellular delivery of biofunctional peptides at concentrations necessary for efficacy remains a formidable challenge. Peptide amphiphiles (PAs) provide a facile method of intracellular delivery and stabilization of bioactive peptides. PAs consisting of biofunctional peptide headgroups linked to hydrophobic alkyl lipid-like tails prevent peptide hydrolysis and proteolysis in circulation, and PA monomers are internalized via endocytosis. However, endocytotic sequestration and steric hindrance from the lipid tail are two major mechanisms that limit PA efficacy to target intracellular PPIs. To address these problems, we have constructed a PA platform consisting of cathepsin-B cleavable PAs in which a selective p53-based inhibitory peptide is cleaved from its lipid tail within endosomes, allowing for intracellular peptide accumulation and extracellular recycling of the lipid moiety. We monitor for cleavage and follow individual PA components in real time using a Förster resonance energy transfer (FRET)-based tracking system. Using this platform, we provide a better understanding and quantification of cellular internalization, trafficking, and endosomal cleavage of PAs and of the ultimate fates of each component.
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Affiliation(s)
- Handan Acar
- Institute for Molecular Engineering, University of Chicago, Eckardt Research Center , 5640 South Ellis Avenue, Chicago, Illinois 60637, United States.,Department of Pediatrics, Section of Hematology/Oncology, University of Chicago , 900 East 57th Street, KCBD 5122, Chicago, Illinois 60637, United States
| | - Ravand Samaeekia
- Institute for Molecular Engineering, University of Chicago, Eckardt Research Center , 5640 South Ellis Avenue, Chicago, Illinois 60637, United States.,Department of Pediatrics, Section of Hematology/Oncology, University of Chicago , 900 East 57th Street, KCBD 5122, Chicago, Illinois 60637, United States
| | - Mathew R Schnorenberg
- Institute for Molecular Engineering, University of Chicago, Eckardt Research Center , 5640 South Ellis Avenue, Chicago, Illinois 60637, United States.,Department of Pediatrics, Section of Hematology/Oncology, University of Chicago , 900 East 57th Street, KCBD 5122, Chicago, Illinois 60637, United States.,Medical Scientist Training Program, University of Chicago , 924 East 57th Street, Suite 104, Chicago, Illinois 60637, United States
| | - Dibyendu K Sasmal
- Institute for Molecular Engineering, University of Chicago, Eckardt Research Center , 5640 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Jun Huang
- Institute for Molecular Engineering, University of Chicago, Eckardt Research Center , 5640 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Matthew V Tirrell
- Institute for Molecular Engineering, University of Chicago, Eckardt Research Center , 5640 South Ellis Avenue, Chicago, Illinois 60637, United States.,Institute for Molecular Engineering, Argonne National Laboratory , 9700 South Cass Avenue, Argonne, Illinois 60639, United States
| | - James L LaBelle
- Department of Pediatrics, Section of Hematology/Oncology, University of Chicago , 900 East 57th Street, KCBD 5122, Chicago, Illinois 60637, United States
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20
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Samad MB, Chhonker YS, Contreras JI, McCarthy A, McClanahan MM, Murry DJ, Conda-Sheridan M. Developing Polyamine-Based Peptide Amphiphiles with Tunable Morphology and Physicochemical Properties. Macromol Biosci 2017; 17. [DOI: 10.1002/mabi.201700096] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/05/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Mehdi Bin Samad
- College of Pharmacy; Department of Pharmaceutical Sciences; University of Nebraska Medical Center; Omaha NE 68198-6125 USA
| | - Yashpal Singh Chhonker
- College of Pharmacy; Department of Pharmacy Practice; University of Nebraska Medical Center; Omaha NE 68198-6145 USA
| | - Jacob I. Contreras
- Eppley Institute for Research in Cancer and Allied Diseases; University of Nebraska Medical Center; Omaha NE 68022 USA
| | - Alec McCarthy
- Department of Biological Systems Engineering; University of Nebraska-Lincoln; Lincoln NE 68588 USA
| | - Megan M. McClanahan
- Division of Natural Science and Mathematics; Chaminade University of Honolulu; Honolulu HI 96816 USA
| | - Daryl J. Murry
- College of Pharmacy; Department of Pharmacy Practice; University of Nebraska Medical Center; Omaha NE 68198-6145 USA
| | - Martin Conda-Sheridan
- College of Pharmacy; Department of Pharmaceutical Sciences; University of Nebraska Medical Center; Omaha NE 68198-6125 USA
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21
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Acar H, Srivastava S, Chung EJ, Schnorenberg MR, Barrett JC, LaBelle JL, Tirrell M. Self-assembling peptide-based building blocks in medical applications. Adv Drug Deliv Rev 2017; 110-111:65-79. [PMID: 27535485 PMCID: PMC5922461 DOI: 10.1016/j.addr.2016.08.006] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 07/01/2016] [Accepted: 08/05/2016] [Indexed: 12/22/2022]
Abstract
Peptides and peptide-conjugates, comprising natural and synthetic building blocks, are an increasingly popular class of biomaterials. Self-assembled nanostructures based on peptides and peptide-conjugates offer advantages such as precise selectivity and multifunctionality that can address challenges and limitations in the clinic. In this review article, we discuss recent developments in the design and self-assembly of various nanomaterials based on peptides and peptide-conjugates for medical applications, and categorize them into two themes based on the driving forces of molecular self-assembly. First, we present the self-assembled nanostructures driven by the supramolecular interactions between the peptides, with or without the presence of conjugates. The studies where nanoassembly is driven by the interactions between the conjugates of peptide-conjugates are then presented. Particular emphasis is given to in vivo studies focusing on therapeutics, diagnostics, immune modulation and regenerative medicine. Finally, challenges and future perspectives are presented.
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Affiliation(s)
- Handan Acar
- Institute for Molecular Engineering, University of Chicago, Chicago, IL 60637, USA; Department of Pediatrics, Section of Hematology/Oncology, University of Chicago, Chicago, IL 60637, USA.
| | - Samanvaya Srivastava
- Institute for Molecular Engineering, University of Chicago, Chicago, IL 60637, USA; Institute for Molecular Engineering, Argonne National Laboratory, Argonne, IL 60439, USA.
| | - Eun Ji Chung
- Institute for Molecular Engineering, University of Chicago, Chicago, IL 60637, USA; Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Mathew R Schnorenberg
- Institute for Molecular Engineering, University of Chicago, Chicago, IL 60637, USA; Department of Pediatrics, Section of Hematology/Oncology, University of Chicago, Chicago, IL 60637, USA; Medical Scientist Training Program, University of Chicago, Chicago, IL 60637, USA.
| | - John C Barrett
- Biophysical Sciences Graduate Program, University of Chicago, Chicago, IL 60637, USA.
| | - James L LaBelle
- Department of Pediatrics, Section of Hematology/Oncology, University of Chicago, Chicago, IL 60637, USA.
| | - Matthew Tirrell
- Institute for Molecular Engineering, University of Chicago, Chicago, IL 60637, USA; Institute for Molecular Engineering, Argonne National Laboratory, Argonne, IL 60439, USA.
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22
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Recent advances in self-assembled peptides: Implications for targeted drug delivery and vaccine engineering. Adv Drug Deliv Rev 2017; 110-111:169-187. [PMID: 27356149 DOI: 10.1016/j.addr.2016.06.013] [Citation(s) in RCA: 225] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 06/10/2016] [Accepted: 06/21/2016] [Indexed: 11/20/2022]
Abstract
Self-assembled peptides have shown outstanding characteristics for vaccine delivery and drug targeting. Peptide molecules can be rationally designed to self-assemble into specific nanoarchitectures in response to changes in their assembly environment including: pH, temperature, ionic strength, and interactions between host (drug) and guest molecules. The resulting supramolecular nanostructures include nanovesicles, nanofibers, nanotubes, nanoribbons, and hydrogels and have a diverse range of mechanical and physicochemical properties. These molecules can be designed for cell-specific targeting by including adhesion ligands, receptor recognition ligands, or peptide-based antigens in their design, often in a multivalent display. Depending on their design, self-assembled peptide nanostructures have advantages in biocompatibility, stability against enzymatic degradation, encapsulation of hydrophobic drugs, sustained drug release, shear-thinning viscoelastic properties, and/or adjuvanting properties. These molecules can also act as intracellular transporters and respond to changes in the physiological environment. Furthermore, this class of materials has shown sequence- and structure-dependent impacts on the immune system that can be tailored to non-immunogenic for drug targeting, and immunogenic for vaccine delivery. This review explores self-assembled peptide nanostructures (beta sheets, alpha helices, peptide amphiphiles, amino acid pairing, elastin like polypeptides, cyclic peptides, short peptides, Fmoc peptides, and peptide hydrogels) and their application in vaccine delivery and drug targeting.
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23
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Castelletto V, Kaur A, Hamley I, Barnes RH, Karatzas KA, Hermida-Merino D, Swioklo S, Connon CJ, Stasiak J, Reza M, Ruokolainen J. Hybrid membrane biomaterials from self-assembly in polysaccharide and peptide amphiphile mixtures: controllable structural and mechanical properties and antimicrobial activity. RSC Adv 2017. [DOI: 10.1039/c6ra27244d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Macroscopic capsules, with tunable properties based on hierarchical self-assembly on multiple lengthscales, are prepared from the co-operative self-assembly of polysaccharide and peptide amphiphiles.
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Affiliation(s)
- V. Castelletto
- School of Chemistry, Pharmacy and Food Biosciences
- University of Reading
- Reading RG6 6AD
- UK
| | - A. Kaur
- School of Chemistry, Pharmacy and Food Biosciences
- University of Reading
- Reading RG6 6AD
- UK
| | - I. W. Hamley
- School of Chemistry, Pharmacy and Food Biosciences
- University of Reading
- Reading RG6 6AD
- UK
| | - R. H. Barnes
- School of Chemistry, Pharmacy and Food Biosciences
- University of Reading
- Reading RG6 6AD
- UK
| | - K.-A. Karatzas
- School of Chemistry, Pharmacy and Food Biosciences
- University of Reading
- Reading RG6 6AD
- UK
| | | | - S. Swioklo
- Institute of Genetic Medicine
- Newcastle University
- International Centre for Life
- Newcastle upon Tyne NE1 3BZ
- UK
| | - C. J. Connon
- Institute of Genetic Medicine
- Newcastle University
- International Centre for Life
- Newcastle upon Tyne NE1 3BZ
- UK
| | - J. Stasiak
- Department of Chemical Engineering and Biotechnology
- Cambridge CB2 3RA
- UK
| | - M. Reza
- Department of Applied Physics
- Aalto University School of Science
- FI-00076 Aalto
- Finland
| | - J. Ruokolainen
- Department of Applied Physics
- Aalto University School of Science
- FI-00076 Aalto
- Finland
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24
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Lock LL, Reyes CD, Zhang P, Cui H. Tuning Cellular Uptake of Molecular Probes by Rational Design of Their Assembly into Supramolecular Nanoprobes. J Am Chem Soc 2016; 138:3533-40. [DOI: 10.1021/jacs.6b00073] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Lye Lin Lock
- Department
of Chemical and Biomolecular Engineering, and Institute for NanoBioTechnology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Claudia D. Reyes
- Department
of Chemical and Biomolecular Engineering, and Institute for NanoBioTechnology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Pengcheng Zhang
- Department
of Chemical and Biomolecular Engineering, and Institute for NanoBioTechnology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Honggang Cui
- Department
of Chemical and Biomolecular Engineering, and Institute for NanoBioTechnology, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
- Department
of Oncology and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Center
for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, Maryland 21231, United States
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25
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Bakker MH, Kieltyka RE, Albertazzi L, Dankers PYW. Modular supramolecular ureidopyrimidinone polymer carriers for intracellular delivery. RSC Adv 2016. [DOI: 10.1039/c6ra22490c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ureidopyrimidinone-based polymers in solution provide a new platform for intracellular drug delivery.
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Affiliation(s)
- Maarten H. Bakker
- Institute for Complex Molecular Systems
- Eindhoven University of Technology
- The Netherlands
- Laboratory of Chemical Biology
- Eindhoven University of Technology
| | - Roxanne E. Kieltyka
- Institute for Complex Molecular Systems
- Eindhoven University of Technology
- The Netherlands
- Laboratory of Chemical Biology
- Eindhoven University of Technology
| | - Lorenzo Albertazzi
- Institute for Complex Molecular Systems
- Eindhoven University of Technology
- The Netherlands
- Laboratory of Chemical Biology
- Eindhoven University of Technology
| | - Patricia Y. W. Dankers
- Institute for Complex Molecular Systems
- Eindhoven University of Technology
- The Netherlands
- Laboratory of Chemical Biology
- Eindhoven University of Technology
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26
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Computational Investigations of Arginine-Rich Peptides Interacting with Lipid Membranes. MACROMOL THEOR SIMUL 2015. [DOI: 10.1002/mats.201500023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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27
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Dehsorkhi A, Gouveia RM, Smith AM, Hamley IW, Castelletto V, Connon CJ, Reza M, Ruokolainen J. Self-assembly of a dual functional bioactive peptide amphiphile incorporating both matrix metalloprotease substrate and cell adhesion motifs. SOFT MATTER 2015; 11:3115-3124. [PMID: 25779650 DOI: 10.1039/c5sm00459d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We describe a bioactive lipopeptide that combines the capacity to promote the adhesion and subsequent self-detachment of live cells, using template-cell-environment feedback interactions. This self-assembling peptide amphiphile comprises a diene-containing hexadecyl lipid chain (C16e) linked to a matrix metalloprotease-cleavable sequence, Thr-Pro-Gly-Pro-Gln-Gly-Ile-Ala-Gly-Gln, and contiguous with a cell-attachment and signalling motif, Arg-Gly-Asp-Ser. Biophysical characterisation revealed that the PA self-assembles into 3 nm diameter spherical micelles above a critical aggregation concentration (cac). In addition, when used in solution at 5-150 nM (well below the cac), the PA is capable of forming film coatings that provide a stable surface for human corneal fibroblasts to attach and grow. Furthermore, these coatings were demonstrated to be sensitive to metalloproteases expressed endogenously by the attached cells, and consequently to elicit the controlled detachment of cells without compromising their viability. As such, this material constitutes a novel class of multi-functional coating for both fundamental and clinical applications in tissue engineering.
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Affiliation(s)
- Ashkan Dehsorkhi
- School of Chemistry, Pharmacy and Food Biosciences, University of Reading, Whiteknights, Reading, RG6 6AD, UK.
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28
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In vivo biodistribution and clearance of peptide amphiphile micelles. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:479-87. [DOI: 10.1016/j.nano.2014.08.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 08/13/2014] [Accepted: 08/22/2014] [Indexed: 12/22/2022]
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29
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Moeinzadeh S, Barati D, Sarvestani SK, Karimi T, Jabbari E. Experimental and computational investigation of the effect of hydrophobicity on aggregation and osteoinductive potential of BMP-2-derived peptide in a hydrogel matrix. Tissue Eng Part A 2015; 21:134-46. [PMID: 25051457 PMCID: PMC4293094 DOI: 10.1089/ten.tea.2013.0775] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 06/25/2014] [Indexed: 11/12/2022] Open
Abstract
An attractive approach to reduce the undesired side effects of bone morphogenetic proteins (BMPs) in regenerative medicine is to use osteoinductive peptide sequences derived from BMPs. Although the structure and function of BMPs have been studied extensively, there is limited data on structure and activity of BMP-derived peptides immobilized in hydrogels. The objective of this work was to investigate the effect of concentration and hydrophobicity of the BMP-2 peptide, corresponding to residues 73-92 of the knuckle epitope of BMP-2 protein, on peptide aggregation and osteogenic differentiation of human mesenchymal stem cells encapsulated in a polyethylene glycol (PEG) hydrogel. The peptide hydrophobicity was varied by capping PEG chain ends with short lactide segments. The BMP-2 peptide with a positive index of hydrophobicity had a critical micelle concentration (CMC) and formed aggregates in aqueous solution. Based on simulation results, there was a slight increase in the concentration of free peptide in solution with 1000-fold increase in peptide concentration. The dose-osteogenic response curve of the BMP-2 peptide was in the 0.0005-0.005 mM range, and osteoinductive potential of the BMP-2 peptide was significantly less than that of BMP-2 protein even at 1000-fold higher concentrations, which was attributed to peptide aggregation. Further, the peptide or PEG-peptide aggregates had significantly higher interaction energy with the cell membrane compared with the free peptide, which led to a higher nonspecific interaction with the cell membrane and loss of osteoinductive potential. Conjugation of the BMP-2 peptide to PEG increased CMC and osteoinductive potential of the peptide whereas conjugation to lactide-capped PEG reduced CMC and osteoinductive potential of the peptide. Experimental and simulation results revealed that osteoinductive potential of the BMP-2 peptide is correlated with its CMC and the free peptide concentration in aqueous medium and not the total concentration.
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Affiliation(s)
- Seyedsina Moeinzadeh
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina , Columbia, South Carolina
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30
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Yang D, Zou R, Zhu Y, Liu B, Yao D, Jiang J, Wu J, Tian H. Magainin II modified polydiacetylene micelles for cancer therapy. NANOSCALE 2014; 6:14772-14783. [PMID: 25355048 DOI: 10.1039/c4nr04405c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Polydiacetylene (PDA) micelles have been widely used to deliver anticancer drugs in the treatment of a variety of tumours and for imaging living cells. In this study, we developed an effective strategy to directly conjugate magainin II (MGN-II) to the surface of PDA micelles using a fluorescent dye. These stable and well-defined PDA micelles had high cytotoxicity in cancer cell lines, and were able to reduce the tumour size in mice. The modified PDA micelles improved the anticancer effects of MGN-II in the A549 cell line only at a concentration of 16.0 μg mL(-1) (IC50). In addition, following irradiation with UV light at 254 nm, the PDA micelles gave rise to an energy transfer from the fluorescent dye to the backbone of PDA micelles to enhance the imaging of living cells. Our results demonstrate that modified PDA micelles can not only be used in the treatment of tumors in vitro and in vivo in a simple and directed way, but also offer a new platform for designing functional liposomes to act as anticancer agents.
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Affiliation(s)
- Danling Yang
- Key Labs for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, China.
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31
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Trent A, Ulery BD, Black MJ, Barrett JC, Liang S, Kostenko Y, David NA, Tirrell MV. Peptide amphiphile micelles self-adjuvant group A streptococcal vaccination. AAPS JOURNAL 2014; 17:380-8. [PMID: 25527256 DOI: 10.1208/s12248-014-9707-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 11/27/2014] [Indexed: 11/30/2022]
Abstract
Delivery system design and adjuvant development are crucially important areas of research for improving vaccines. Peptide amphiphile micelles are a class of biomaterials that have the unique potential to function as both vaccine delivery vehicles and self-adjuvants. In this study, peptide amphiphiles comprised of a group A streptococcus B cell antigen (J8) and a dialkyl hydrophobic moiety (diC16) were synthesized and organized into self-assembled micelles, driven by hydrophobic interactions among the alkyl tails. J8-diC16 formed cylindrical micelles with highly α-helical peptide presented on their surfaces. Both the micelle length and secondary structure were shown to be enhanced by annealing. When injected into mice, J8-diC16 micelles induced a strong IgG1 antibody response that was comparable to soluble J8 peptide supplemented with two classical adjuvants. It was discovered that micelle adjuvanticity requires the antigen be a part of the micelle since separation of J8 and the micelle was insufficient to induce an immune response. Additionally, the diC16 tail appears to be non-immunogenic since it does not stimulate a pathogen recognition receptor whose agonist (Pam3Cys) possesses a very similar chemical structure. The research presented in this paper demonstrates the promise peptide amphiphile micelles have in improving the field of vaccine engineering.
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Affiliation(s)
- Amanda Trent
- Biomolecular Science and Engineering Program, University of California, Santa Barbara, California, 93106, USA
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32
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Zhu W, Fang S, Zhang Y, Li X. Functional vesicles formed by anticancer drug assembly. Bioorg Med Chem Lett 2014; 25:188-91. [PMID: 25515557 DOI: 10.1016/j.bmcl.2014.11.085] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Revised: 11/21/2014] [Accepted: 11/28/2014] [Indexed: 12/25/2022]
Abstract
In this Letter, a new type of nitrogen mustard conjugate vesicles is developed to improve the stability and efficiency of anticancer drug. Benzoic acid nitrogen mustard-peptide (AAAK) conjugate was designed and synthesized, which was found to self-assemble into vesicles in water. The formation of the vesicles was confirmed by dynamic light scattering (DLS), transmission electron microscopy (TEM) and circular dichroism (CD). The degradation data revealed that the benzoic acid nitrogen mustard peptide (AAAK) conjugate vesicles are more stable than the parent drug in aqueous solution. Furthermore, MTT assay revealed that the free drug conjugate has similar antitumor activity against MCF-7, Hela, HepG-2 cell lines compared with the parent drug. The benzoic acid nitrogen mustard-peptide conjugate vesicles may have potential in the treatment of cancers.
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Affiliation(s)
- Wenjun Zhu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China
| | - Shuo Fang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China
| | - Yemin Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China
| | - Xinsong Li
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China.
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33
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Haralampiev I, Mertens M, Schwarzer R, Herrmann A, Volkmer R, Wessig P, Müller P. Rekrutierung Sulfhydryl‐haltiger Peptide an Lipid‐ und biologische Membranen durch eine Maleimid‐funktionalisierte Palmitinsäure. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408089] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ivan Haralampiev
- Institut für Biologie, Humboldt‐Universität zu Berlin, Invalidenstraße 42, 10115‐Berlin (Deutschland)
| | - Monique Mertens
- Institut für Chemie, Universität Potsdam, Karl‐Liebknecht‐Straße 24‐25, 14476 Potsdam (Deutschland)
| | - Roland Schwarzer
- Institut für Biologie, Humboldt‐Universität zu Berlin, Invalidenstraße 42, 10115‐Berlin (Deutschland)
| | - Andreas Herrmann
- Institut für Biologie, Humboldt‐Universität zu Berlin, Invalidenstraße 42, 10115‐Berlin (Deutschland)
| | - Rudolf Volkmer
- Institut für Medizinische Immunologie, Charité, Universitätsmedizin Berlin, Hessische Straße 3, 10115 Berlin (Deutschland)
| | - Pablo Wessig
- Institut für Chemie, Universität Potsdam, Karl‐Liebknecht‐Straße 24‐25, 14476 Potsdam (Deutschland)
| | - Peter Müller
- Institut für Biologie, Humboldt‐Universität zu Berlin, Invalidenstraße 42, 10115‐Berlin (Deutschland)
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34
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Haralampiev I, Mertens M, Schwarzer R, Herrmann A, Volkmer R, Wessig P, Müller P. Recruitment of SH‐Containing Peptides to Lipid and Biological Membranes through the Use of a Palmitic Acid Functionalized with a Maleimide Group. Angew Chem Int Ed Engl 2014; 54:323-6. [DOI: 10.1002/anie.201408089] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 10/17/2014] [Indexed: 12/15/2022]
Affiliation(s)
- Ivan Haralampiev
- Department of Biology, Humboldt University Berlin, Invalidenstrasse 42, 10115 Berlin (Germany)
| | - Monique Mertens
- Department of Chemistry, University Potsdam, Karl‐Liebknecht‐Strasse 24–25, 14476 Potsdam (Germany)
| | - Roland Schwarzer
- Department of Biology, Humboldt University Berlin, Invalidenstrasse 42, 10115 Berlin (Germany)
| | - Andreas Herrmann
- Department of Biology, Humboldt University Berlin, Invalidenstrasse 42, 10115 Berlin (Germany)
| | - Rudolf Volkmer
- Institute for Medical Immunology, Charité, University Medicine Berlin, Hessische Strasse 3, 10115 Berlin (Germany)
| | - Pablo Wessig
- Department of Chemistry, University Potsdam, Karl‐Liebknecht‐Strasse 24–25, 14476 Potsdam (Germany)
| | - Peter Müller
- Department of Biology, Humboldt University Berlin, Invalidenstrasse 42, 10115 Berlin (Germany)
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35
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Cheetham A, Zhang P, Lin YA, Lin R, Cui H. Synthesis and Self-Assembly of a Mikto-Arm Star Dual Drug Amphiphile Containing both Paclitaxel and Camptothecin. J Mater Chem B 2014; 2:7316-7326. [PMID: 25667746 PMCID: PMC4319564 DOI: 10.1039/c4tb01084a] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Self-assembly of anticancer therapeutics into discrete nanostructures provides an innovative way to develop a self-delivering nanomedicine with a high, quantitative drug loading. We report here the synthesis and assembly of a mikto-arm star dual drug amphiphile (DA) containing both a bulky paclitaxel (PTX) and a planar camptothecin (CPT). The two anti-cancer drugs of interest were stochastically conjugated to a β-sheet forming peptide (Sup35) and under physiologically-relevant conditions the dual DA could spontaneously associate into supramolecular filaments with a fixed 41% total drug loading (29% PTX and 12% CPT). Transmission electron microscopy imaging and circular dichroism spectroscopy studies reveal that the bulkiness of the PTX, as well as the π-π interaction preference between the CPT units, has a significant impact on the assembly kinetics, molecular level packing, and nanostructure morphology and stability. We found that the DA containing two PTX units assembled into non-filamentous micelle-like structures, in contrast to the filamentous structures formed by the hetero dual DA and the DA containing two CPTs. The hetero dual DA was found to effectively release the two anticancer agents, exhibiting superior cytotoxicity against PTX-resistant cervical cancer cells. The presented work offers a potential method to generate well-defined entwined filamentous nanostructures and provides the basis for a future combination therapy platform.
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Affiliation(s)
- A.G. Cheetham
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
- Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - P. Zhang
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Y.-A. Lin
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
- Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - R. Lin
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - H. Cui
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
- Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, Maryland 21218, USA
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36
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Accardo A, Vitiello M, Tesauro D, Galdiero M, Finamore E, Martora F, Mansi R, Ringhieri P, Morelli G. Self-assembled or mixed peptide amphiphile micelles from Herpes simplex virus glycoproteins as potential immunomodulatory treatment. Int J Nanomedicine 2014; 9:2137-48. [PMID: 24855352 PMCID: PMC4019629 DOI: 10.2147/ijn.s57656] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The use of micelle aggregates formed from peptide amphiphiles (PAs) as potential synthetic self-adjuvant vaccines to treat Herpes simplex virus (HSV) infection are reported here. The PAs were based on epitopes gB409–505 and gD301–309, selected from HSV envelope glycoprotein B (gB) and glycoprotein D (gD), that had their N-terminus modified with hydrophobic moieties containing two C18 hydrocarbon chains. Pure and mixed micelles of gB and/or gD peptide epitopes were easily prepared after starting with the synthesis of corresponding PAs by solid phase methods. Structural characterization of the aggregates confirmed that they were sufficiently stable and compatible with in vivo use: critical micelle concentration values around 4.0 ⋅ 10−7 mol ⋅ Kg−1; hydrodynamic radii (RH) between 50–80 nm, and a zeta potential (ζ) around − 40 mV were found for all aggregates. The in vitro results indicate that both peptide epitopes and micelles, at 10 μM, triggered U937 and RAW 264.7 cells to release appreciable levels of cytokines. In particular, interleukin (IL)-23-, IL-6-, IL-8- or macrophage inflammatory protein (MIP)-2-, and tumor necrosis factor (TNF)-α-release increased considerably when cells were treated with the gB-micelles or gD-micelles compared with the production of the same cytokines when the stimulus was the single gB or gD peptide.
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Affiliation(s)
- Antonella Accardo
- Department of Pharmacy, Interuniversitary Centre for Research on Bioactive peptides, CIRPeB, University of Naples "Federico II", Institute of Biostructures and Bioimaging IBB-CNR, Naples, Italy
| | - Mariateresa Vitiello
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, Second University of Naples, Naples, Italy ; Department of Clinical Pathology and Transfusion Medicine, University Hospital "Ruggi d'Aragona", Salerno, Italy
| | - Diego Tesauro
- Department of Pharmacy, Interuniversitary Centre for Research on Bioactive peptides, CIRPeB, University of Naples "Federico II", Institute of Biostructures and Bioimaging IBB-CNR, Naples, Italy
| | - Marilena Galdiero
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, Second University of Naples, Naples, Italy
| | - Emiliana Finamore
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, Second University of Naples, Naples, Italy
| | - Francesca Martora
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, Second University of Naples, Naples, Italy
| | - Rosalba Mansi
- Department of Pharmacy, Interuniversitary Centre for Research on Bioactive peptides, CIRPeB, University of Naples "Federico II", Institute of Biostructures and Bioimaging IBB-CNR, Naples, Italy
| | - Paola Ringhieri
- Department of Pharmacy, Interuniversitary Centre for Research on Bioactive peptides, CIRPeB, University of Naples "Federico II", Institute of Biostructures and Bioimaging IBB-CNR, Naples, Italy
| | - Giancarlo Morelli
- Department of Pharmacy, Interuniversitary Centre for Research on Bioactive peptides, CIRPeB, University of Naples "Federico II", Institute of Biostructures and Bioimaging IBB-CNR, Naples, Italy
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37
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Zhang P, Lock LL, Cheetham AG, Cui H. Enhanced cellular entry and efficacy of tat conjugates by rational design of the auxiliary segment. Mol Pharm 2014; 11:964-73. [PMID: 24437690 PMCID: PMC3993903 DOI: 10.1021/mp400619v] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
![]()
Conjugation with a cell penetrating
peptide such as Tat presents
an effective approach to improve the intracellular accumulation of
molecules with low membrane permeability. This strategy, however,
leads to a reduced cellular entry of molecules that can cross cell
membrane effectively. We report here that covalent linkage of an additional
hydrophobic unit that mimics a hydrophobic domain near the Tat sequence
can further improve the cellular uptake of the parental conjugate
into cancer cells regardless of the membrane permeability of the unconjugated
molecule. Both fluorescent imaging and flow cytometry measurements
confirmed the effect of palmitoylation on the increased internalization
of the Tat conjugates with either 5-carboxyfluorescein (5-FAM), a
nonmembrane penetrating dye, or doxorubicin, an anticancer cancer
drug that can readily diffuse across cell membranes. In the case of
the Tat–doxorubicin conjugate, palmitoylation improves the
conjugate’s anticancer activity in both drug sensitive and
resistant cervical cancer cell lines. We further demonstrate that
modification of a Tat–5-FAM conjugate with a hydrophobic quencher
could not only efficiently quench the fluorescence outside of cancer
cell but also facilitate its entry into MCF-7 breast cancer cells.
These results highlight the importance of rational molecular design
of using peptide conjugation chemistry in cancer therapeutics and
diagnostics.
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Affiliation(s)
- Pengcheng Zhang
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, Johns Hopkins University , Baltimore, Maryland 21218, United States
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38
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Chen JX, Xu XD, Chen WH, Zhang XZ. Multi-functional envelope-type nanoparticles assembled from amphiphilic peptidic prodrug with improved anti-tumor activity. ACS APPLIED MATERIALS & INTERFACES 2014; 6:593-598. [PMID: 24359299 DOI: 10.1021/am404680n] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A novel multifunctional amphiphilic peptidic prodrug was reported here by conjugating the antitumor drug of doxorubicin (DOX) to the hydrophobic tail of a designed peptide-amphiphile (PA), in which the hydrophilic peptide headgroup comprises a glycine-arginine-glycine-aspartic acid-serine (GRGDS) sequence and octaarginine (R8) sequence. Because of the amphiphilic nature, this peptidic prodrug can spontaneously self-assemble into spherical multifunctional envelop-type nanoparticles (MENPs) with the functional peptide sequences gathered on surface. By means of the multifunctions of RGD-mediated tumor targeting, R8-mediated membrane penetration and intracellular protease-mediated hydrolyzing peptide bonds, the MENPs could targeted deliver doxorubicin (DOX) to tumor cells, showing improved antitumor activity both in vitro and in vivo with much reduced side effects.
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Affiliation(s)
- Jing-Xiao Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University , Wuhan 430072, P. R. China
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39
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Zhang P, Cheetham AG, Lin YA, Cui H. Self-assembled Tat nanofibers as effective drug carrier and transporter. ACS NANO 2013; 7:5965-77. [PMID: 23758167 PMCID: PMC3799919 DOI: 10.1021/nn401667z] [Citation(s) in RCA: 149] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Cell penetrating peptides (CPPs) have been extensively explored as molecular vectors through covalent linkage to anticancer drugs to improve the drug's water solubility and to help overcome multidrug resistance. We report here the use of the Tat CPP as a molecular building unit to construct well-defined supramolecular nanofibers that can be utilized as a nanoscale vector to encapsulate the hydrophobic drug paclitaxel (PTX) (loading efficiency: 89.7 ± 5.0%) with a high loading capacity (6.8 ± 0.4%). Notably, our TEM imaging results reveal that nanofibers containing a higher PTX content tend to be more flexible than those with a lower PTX content. Fluorescence and confocal microscopy imaging show that the Tat nanofibers can effectively transport encapsulated molecules into the cells through an adsorptive-mediated endocytosis pathway. Cytotoxicity experiments and flow cytometry measurements demonstrate that PTX loaded in the nanofibers exerts its cytotoxicity against cancer cells by arresting the cells at the G2/M phase, the same working mechanism as free PTX.
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Affiliation(s)
- Pengcheng Zhang
- Department of Chemical and Biomolecular Engineering, and Institute for NanoBio Technology, The Johns Hopkins University, Baltimore, MD 21218, United States
| | - Andrew G. Cheetham
- Department of Chemical and Biomolecular Engineering, and Institute for NanoBio Technology, The Johns Hopkins University, Baltimore, MD 21218, United States
| | - Yi-an Lin
- Department of Chemical and Biomolecular Engineering, and Institute for NanoBio Technology, The Johns Hopkins University, Baltimore, MD 21218, United States
| | - Honggang Cui
- Department of Chemical and Biomolecular Engineering, and Institute for NanoBio Technology, The Johns Hopkins University, Baltimore, MD 21218, United States
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40
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Zhang P, Cheetham AG, Lock LL, Cui H. Cellular uptake and cytotoxicity of drug-peptide conjugates regulated by conjugation site. Bioconjug Chem 2013; 24:604-13. [PMID: 23514455 DOI: 10.1021/bc300585h] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Conjugation of anticancer drugs to hydrophilic peptides such as Tat is a widely adopted strategy to improve the drug's solubility, cellular uptake, and potency against cancerous cells. Here we report that attachment of an anticancer drug doxorubicin to the N- or C-terminal of the Tat peptide can have a significant impact on their cellular uptake and cytotoxicity against both drug-sensitive and drug-resistant cancer cells. We observed higher cellular uptake by both cell lines for C-terminal conjugate relative to the N-terminal analogue. Our results reveal that the C-terminal conjugate partially overcame the multidrug resistance of cervical cancer cells, while the N-terminal conjugate showed no significant improvement in cytotoxicity when compared with free doxorubicin. We also found that both N- and C-conjugates offer a mechanism to circumvent drug efflux associated with multidrug resistance.
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Affiliation(s)
- Pengcheng Zhang
- Department of Chemical and Biomolecular Engineering and Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
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41
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Missirlis D, Teesalu T, Black M, Tirrell M. The non-peptidic part determines the internalization mechanism and intracellular trafficking of peptide amphiphiles. PLoS One 2013; 8:e54611. [PMID: 23349939 PMCID: PMC3547919 DOI: 10.1371/journal.pone.0054611] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 12/13/2012] [Indexed: 11/18/2022] Open
Abstract
Background Peptide amphiphiles (PAs) are a class of amphiphilic molecules able to self-assemble into nanomaterials that have shown efficient in vivo targeted delivery. Understanding the interactions of PAs with cells and the mechanisms of their internalization and intracellular trafficking is critical in their further development for therapeutic delivery applications. Methodology/Principal Findings PAs of a novel, cell- and tissue-penetrating peptide were synthesized possessing two different lipophilic tail architectures and their interactions with prostate cancer cells were studied in vitro. Cell uptake of peptides was greatly enhanced post-modification. Internalization occurred via lipid-raft mediated endocytosis and was common for the two analogs studied. On the contrary, we identified the non-peptidic part as the determining factor of differences between intracellular trafficking and retention of PAs. PAs composed of di-stearyl lipid tails linked through poly(ethylene glycol) to the peptide exhibited higher exocytosis rates and employed different recycling pathways compared to ones consisting of di-palmitic-coupled peptides. As a result, cell association of the former PAs decreased with time. Conclusions/Significance Control over peptide intracellular localization and retention is possible by appropriate modification with synthetic hydrophobic tails. We propose this as a strategy to design improved peptide-based delivery systems.
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Affiliation(s)
- Dimitris Missirlis
- Department of Bioengineering, University of California, Berkeley, California, USA.
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42
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Palladino P, Castelletto V, Dehsorkhi A, Stetsenko D, Hamley IW. Conformation and self-association of peptide amphiphiles based on the KTTKS collagen sequence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12209-12215. [PMID: 22834769 DOI: 10.1021/la302123h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Studying peptide amphiphiles (PAs), we investigate the influence of alkyl chain length on the aggregation behavior of the collagen-derived peptide KTTKS with applications ranging from antiwrinkle cosmetic creams to potential uses in regenerative medicine. We have studied synthetic peptides amphiphiles C(14)-KTTKS (myristoyl-Lys-Thr-Thr-Lys-Ser) and C(18)-KTTKS (stearoyl-Lys-Thr-Thr-Lys-Ser) to investigate in detail their physicochemical properties. It is presumed that the hydrophobic chain in these self-assembling peptide amphiphiles enhances peptide permeation across the skin compared to KTTKS alone. Subsequently C(n)-KTTKS should act as a prodrug and release the peptide by enzymatic cleavage. Our results should be useful in the further development of molecules with collagen-stimulating activity.
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Affiliation(s)
- Pasquale Palladino
- School of Chemistry, Food and Pharmacy, University of Reading, Reading, United Kingdom
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43
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Black M, Trent A, Kostenko Y, Lee JS, Olive C, Tirrell M. Self-assembled peptide amphiphile micelles containing a cytotoxic T-cell epitope promote a protective immune response in vivo. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:3845-9. [PMID: 22550019 DOI: 10.1002/adma.201200209] [Citation(s) in RCA: 173] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Revised: 02/20/2012] [Indexed: 05/20/2023]
MESH Headings
- Adaptive Immunity
- Amino Acid Sequence
- Animals
- Drug Delivery Systems
- Epitopes, T-Lymphocyte/administration & dosage
- Epitopes, T-Lymphocyte/chemistry
- Female
- HEK293 Cells
- Humans
- Lipopeptides/administration & dosage
- Lipopeptides/chemistry
- Lipopeptides/immunology
- Mice
- Mice, Inbred C57BL
- Micelles
- Models, Molecular
- Molecular Structure
- Neoplasms, Experimental/immunology
- Neoplasms, Experimental/pathology
- Neoplasms, Experimental/therapy
- Ovalbumin/immunology
- Surface-Active Agents/administration & dosage
- Surface-Active Agents/chemistry
- T-Lymphocytes, Cytotoxic/immunology
- Vaccines, Subunit/administration & dosage
- Vaccines, Subunit/chemistry
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Affiliation(s)
- Matthew Black
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
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44
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Dong H, Shu JY, Dube N, Ma Y, Tirrell MV, Downing KH, Xu T. 3-Helix micelles stabilized by polymer springs. J Am Chem Soc 2012; 134:11807-14. [PMID: 22731391 PMCID: PMC4186246 DOI: 10.1021/ja3048128] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Despite increasing demands to employ amphiphilic micelles as nanocarriers and nanoreactors, it remains a significant challenge to simultaneously reduce the particle size and enhance the particle stability. Complementary to covalent chemical bonding and attractive intermolecular interactions, entropic repulsion can be incorporated by rational design in the headgroup of an amphiphile to generate small micelles with enhanced stability. A new family of amphiphilic peptide-polymer conjugates is presented where the hydrophilic headgroup is composed of a 3-helix coiled coil with poly(ethylene glycol) attached to the exterior of the helix bundle. When micelles form, the PEG chains are confined in close proximity and are compressed to act as a spring to generate lateral pressure. The formation of 3-helix bundles determines the location and the directionalities of the force vector of each PEG elastic spring so as to slow down amphiphile desorption. Since each component of the amphiphile can be readily tailored, these micelles provide numerous opportunities to meet current demands for organic nanocarriers with tunable stability in life science and energy science. Furthermore, present studies open new avenues to use energy arising from entropic polymer chain deformation to self-assemble energetically stable, single nanoscopic objects, much like repulsion that stabilizes bulk assemblies of colloidal particles.
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Affiliation(s)
- He Dong
- Department of Materials Science & Engineering, University of California, Berkeley
| | - Jessica Y. Shu
- Department of Materials Science & Engineering, University of California, Berkeley
| | - Nikhil Dube
- Department of Materials Science & Engineering, University of California, Berkeley
| | - Yufei Ma
- Department of Materials Science & Engineering, University of California, Berkeley
| | - Matthew V. Tirrell
- Department of Bioengineering, University of California, Berkeley
- Materials Sciences Division, Lawrence Berkeley National Laboratory
| | | | - Ting Xu
- Department of Materials Science & Engineering, University of California, Berkeley
- Materials Sciences Division, Lawrence Berkeley National Laboratory
- Department of Chemistry, University of California, Berkeley
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45
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Dong H, Dube N, Shu JY, Seo JW, Mahakian LM, Ferrara KW, Xu T. Long-circulating 15 nm micelles based on amphiphilic 3-helix peptide-PEG conjugates. ACS NANO 2012; 6:5320-9. [PMID: 22545944 PMCID: PMC3531550 DOI: 10.1021/nn301142r] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Generating stable, multifunctional organic nanocarriers will have a significant impact on drug formulation. However, it remains a significant challenge to generate organic nanocarriers with a long circulation half-life, effective tumor penetration, and efficient clearance of metabolites. We have advanced this goal by designing a new family of amphiphiles based on coiled-coil 3-helix bundle forming peptide-poly(ethylene glycol) conjugates. The amphiphiles self-assemble into monodisperse micellar nanoparticles, 15 nm in diameter. Using the 3-helix micelles, a drug loading of ∼8 wt % was obtained using doxorubicin and the micelles showed minimal cargo leakage after 12 h of incubation with serum proteins at 37 °C. In vivo pharmacokinetics studies using positron emission tomography showed a circulation half-life of 29.5 h and minimal accumulation in the liver and spleen. The demonstrated strategy, by incorporating unique protein tertiary structure in the headgroup of an amphiphile, opens new avenues to generate organic nanoparticles with tunable stability, ligand clustering, and controlled disassembly to meet current demands in nanomedicine.
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Affiliation(s)
- He Dong
- Department of Materials Science & Engineering, University of California, Berkeley
| | - Nikhil Dube
- Department of Materials Science & Engineering, University of California, Berkeley
| | - Jessica Y. Shu
- Department of Materials Science & Engineering, University of California, Berkeley
| | - Jai W. Seo
- Department of Bioengineering, University of California, Davis
| | | | | | - Ting Xu
- Department of Materials Science & Engineering, University of California, Berkeley
- Department of Bioengineering, University of California, Berkeley
- Department of Chemistry, University of California, Berkeley
- Corresponding author:
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46
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Lin BF, Missirlis D, Krogstad DV, Tirrell M. Structural Effects and Lipid Membrane Interactions of the pH-Responsive GALA Peptide with Fatty Acid Acylation. Biochemistry 2012; 51:4658-68. [DOI: 10.1021/bi300314h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Brian F. Lin
- Department
of Bioengineering, University of California, Berkeley, California 94720,
United States
- Department
of Chemistry and
Biochemistry, University of California,
Santa Barbara, California 93106, United States
| | - Dimitris Missirlis
- Department
of Bioengineering, University of California, Berkeley, California 94720,
United States
- Department of Biophysical Chemistry,
Institute for Physical Chemistry, University of Heidelberg, Heidelberg, D-69210, Germany
| | - Daniel V. Krogstad
- Materials Department, University of California, Santa Barbara,
California 93106, United States
| | - Matthew Tirrell
- Department
of Bioengineering, University of California, Berkeley, California 94720,
United States
- Materials Department, University of California, Santa Barbara,
California 93106, United States
- Institute for Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United
States
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47
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Lin BF, Megley KA, Viswanathan N, Krogstad DV, Drews LB, Kade MJ, Qian Y, Tirrell MV. pH-responsive branched peptide amphiphile hydrogel designed for applications in regenerative medicine with potential as injectable tissue scaffolds. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31745a] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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48
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Lin BF, Marullo RS, Robb MJ, Krogstad DV, Antoni P, Hawker CJ, Campos LM, Tirrell MV. De novo design of bioactive protein-resembling nanospheres via dendrimer-templated peptide amphiphile assembly. NANO LETTERS 2011; 11:3946-50. [PMID: 21800917 PMCID: PMC3223106 DOI: 10.1021/nl202220q] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Self-assembling peptide amphiphiles (PAs) have been extensively used in the development of novel biomaterials. Because of their propensity to form cylindrical micelles, their use is limited in applications where small spherical micelles are desired. Here we present a platform method for controlling the self-assembly of biofunctional PAs into spherical 50 nm particles using dendrimers as shape-directing scaffolds. This templating approach results in biocompatible, stable protein-like assemblies displaying peptides with native secondary structure and biofunctionality.
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Affiliation(s)
- Brian F. Lin
- Department of Chemistry and Biochemistry, Department of Chemical Engineering, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, CA 93106-5121, USA
- Department of Bioengineering, University of California, Berkeley, CA 94720-1762, USA
| | - Rachel S. Marullo
- Department of Chemistry and Biochemistry, Department of Chemical Engineering, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, CA 93106-5121, USA
- Department of Bioengineering, University of California, Berkeley, CA 94720-1762, USA
| | - Maxwell J. Robb
- Department of Chemistry and Biochemistry, Department of Chemical Engineering, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, CA 93106-5121, USA
| | - Daniel V. Krogstad
- Department of Chemistry and Biochemistry, Department of Chemical Engineering, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, CA 93106-5121, USA
| | - Per Antoni
- Department of Chemistry and Biochemistry, Department of Chemical Engineering, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, CA 93106-5121, USA
| | - Craig J. Hawker
- Department of Chemistry and Biochemistry, Department of Chemical Engineering, Materials Department, and Materials Research Laboratory, University of California, Santa Barbara, CA 93106-5121, USA
| | - Luis M. Campos
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Matthew V. Tirrell
- Department of Bioengineering, University of California, Berkeley, CA 94720-1762, USA
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Missirlis D, Chworos A, Fu CJ, Khant HA, Krogstad DV, Tirrell M. Effect of the peptide secondary structure on the peptide amphiphile supramolecular structure and interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:6163-70. [PMID: 21488620 PMCID: PMC3103120 DOI: 10.1021/la200800e] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Bottom-up fabrication of self-assembled nanomaterials requires control over forces and interactions between building blocks. We report here on the formation and architecture of supramolecular structures constructed from two different peptide amphiphiles. Inclusion of four alanines between a 16-mer peptide and a 16 carbon long aliphatic tail resulted in a secondary structure shift of the peptide headgroups from α helices to β sheets. A concomitant shift in self-assembled morphology from nanoribbons to core-shell worm-like micelles was observed by cryogenic transmission electron microscopy (cryo-TEM) and atomic force microscopy (AFM). In the presence of divalent magnesium ions, these a priori formed supramolecular structures interacted in distinct manners, highlighting the importance of peptide amphiphile design in self-assembly.
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Affiliation(s)
- Dimitris Missirlis
- Department of Chemical Engineering, University of California, Santa Barbara, CA 93106, USA
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
- Department of Bioengineering, University of California, Berkeley, CA 94720, USA
| | - Arkadiusz Chworos
- Department of Physics, University of California, Santa Barbara, CA 93106-9530, USA
- The Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences in Lodz, Sienkiewicza 112, Lodz, 90363, Poland
| | - Caroline J. Fu
- Department of Biochemistry and Molecular Biology, Baylor College of Medicine, TX 77030, USA
| | - Htet A. Khant
- Department of Biochemistry and Molecular Biology, Baylor College of Medicine, TX 77030, USA
| | - Daniel V. Krogstad
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
- Materials Department, University of California, Santa Barbara, CA 93106, USA
| | - Matthew Tirrell
- Department of Chemical Engineering, University of California, Santa Barbara, CA 93106, USA
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
- Department of Bioengineering, University of California, Berkeley, CA 94720, USA
- Materials Department, University of California, Santa Barbara, CA 93106, USA
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Missirlis D, Krogstad DV, Tirrell M. Internalization of p53(14-29) peptide amphiphiles and subsequent endosomal disruption results in SJSA-1 cell death. Mol Pharm 2010; 7:2173-84. [PMID: 20822110 PMCID: PMC2997927 DOI: 10.1021/mp100193h] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In vivo peptide inhibition of tumor suppressor p53 binding to the protein MDM2 is hampered by inefficient delivery of the peptide. Our approach to couple a hydrophobic lipid-like tail on the inhibitory peptide p53(14-29) allowed its intracellular delivery in vitro, in a panel of different cell lines. The constructed chimeric molecules, termed peptide amphiphiles, further self-assembled into supramolecular structures, identified as elongated wormlike micelles. Internalization of peptides occurred following micelle disassembly, partly via clathrin-mediated endocytosis of monomers. Incubation of SJSA-1 cells in hypertonic culture media, aimed to disrupt endocytic vesicles, resulted in peptide amphiphile-mediated cell death. Our results provide the basis for the construction of novel therapeutic supramolecular nanoparticles and suggest hydrophobic modification of peptides as a promising strategy for enhancing delivery of impermeable peptides.
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Affiliation(s)
- Dimitris Missirlis
- Department of Chemical Engineering, University of California, Santa Barbara, CA 93106
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106
- Department of Bioengineering, University of California, Berkeley, CA 94720
| | - Daniel V. Krogstad
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106
- Materials Department, University of California, Santa Barbara, CA 93106
| | - Matthew Tirrell
- Department of Chemical Engineering, University of California, Santa Barbara, CA 93106
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106
- Department of Bioengineering, University of California, Berkeley, CA 94720
- Materials Department, University of California, Santa Barbara, CA 93106
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