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Mahmoudi N, Roque M, Paiva Dos Santos B, Oliveira H, Siadous R, Rey S, Garanger E, Lecommandoux S, Catros S, Garbay B, Amédée Vilamitjana J. An Elastin-Derived Composite Matrix for Enhanced Vascularized and Innervated Bone Tissue Reconstruction: From Material Development to Preclinical Evaluation. Adv Healthc Mater 2024; 13:e2303765. [PMID: 38651610 DOI: 10.1002/adhm.202303765] [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: 10/29/2023] [Revised: 03/28/2024] [Indexed: 04/25/2024]
Abstract
Despite progress in bone tissue engineering, reconstruction of large bone defects remains an important clinical challenge. Here, a biomaterial designed to recruit bone cells, endothelial cells, and neuronal fibers within the same matrix is developed, enabling bone tissue regeneration. The bioactive matrix is based on modified elastin-like polypeptides (ELPs) grafted with laminin-derived adhesion peptides IKVAV and YIGSR, and the SNA15 peptide for retention of hydroxyapatite (HA) particles. The composite matrix shows suitable porosity, interconnectivity, biocompatibility for endothelial cells, and the ability to support neurites outgrowth by sensory neurons. Subcutaneous implantation leads to the formation of osteoid tissue, characterized by the presence of bone cells, vascular networks, and neuronal structures, while minimizing inflammation. Using a rat femoral condyle defect model, longitudinal micro-CT analysis is performed, which demonstrates a significant increase in the volume of mineralized tissue when using the ELP-based matrix compared to empty defects and a commercially available control (Collapat). Furthermore, visible blood vessel networks and nerve fibers are observed within the lesions after a period of two weeks. By incorporating multiple key components that support cell growth, mineralization, and tissue integration, this ELP-based composite matrix provides a holistic and versatile solution to enhance bone tissue regeneration.
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Affiliation(s)
- Nadia Mahmoudi
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | - Micaela Roque
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | - Bruno Paiva Dos Santos
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | - Hugo Oliveira
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | - Robin Siadous
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | - Sylvie Rey
- Tissue Bioengineering Laboratory (BioTis), Inserm U1026, University of Bordeaux, Bordeaux, France
| | | | | | - Sylvain Catros
- CHU Bordeaux, Dentistry and Oral Health Department, Bordeaux, 33076, France
| | - Bertrand Garbay
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR, Pessac, 5629, France
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2
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Beeton K, Mitra D, Akinleye AA, Howell JA, Yu CS, Bidwell GL, Tandon R. An Elastin-like Polypeptide-fusion peptide targeting capsid-tegument interface as an antiviral against cytomegalovirus infection. Sci Rep 2024; 14:10253. [PMID: 38704431 PMCID: PMC11069587 DOI: 10.1038/s41598-024-60691-6] [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: 08/31/2023] [Accepted: 04/26/2024] [Indexed: 05/06/2024] Open
Abstract
The tegument protein pp150 of Human Cytomegalovirus (HCMV) is known to be essential for the final stages of virus maturation and mediates its functions by interacting with capsid proteins. Our laboratory has previously identified the critical regions in pp150 important for pp150-capsid interactions and designed peptides similar in sequence to these regions, with a goal to competitively inhibit capsid maturation. Treatment with a specific peptide (PepCR2 or P10) targeted to pp150 conserved region 2 led to a significant reduction in murine CMV (MCMV) growth in cell culture, paving the way for in vivo testing in a mouse model of CMV infection. However, the general pharmacokinetic parameters of peptides, including rapid degradation and limited tissue and cell membrane permeability, pose a challenge to their successful use in vivo. Therefore, we designed a biopolymer-stabilized elastin-like polypeptide (ELP) fusion construct (ELP-P10) to enhance the bioavailability of P10. Antiviral efficacy and cytotoxic effects of ELP-P10 were studied in cell culture, and pharmacokinetics, biodistribution, and antiviral efficacy were studied in a mouse model of CMV infection. ELP-P10 maintained significant antiviral activity in cell culture, and this conjugation significantly enhanced P10 bioavailability in mouse tissues. The fluorescently labeled ELP-P10 accumulated to higher levels in mouse liver and kidneys as compared to the unconjugated P10. Moreover, viral titers from vital organs of MCMV-infected mice indicated a significant reduction of virus load upon ELP-P10 treatment. Therefore, ELP-P10 has the potential to be developed into an effective antiviral against CMV infection.
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Affiliation(s)
- Komal Beeton
- Department of Cell and Molecular Biology, Center for Immunology and Microbial Research, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA
| | - Dipanwita Mitra
- Department of Cell and Molecular Biology, Center for Immunology and Microbial Research, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA
| | - Adesanya A Akinleye
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA
| | - John A Howell
- Department of Neurology, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA
| | - Christian S Yu
- Department of Cell and Molecular Biology, Center for Immunology and Microbial Research, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA
| | - Gene L Bidwell
- Department of Cell and Molecular Biology, Center for Immunology and Microbial Research, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA
- Department of Neurology, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA
| | - Ritesh Tandon
- Department of Cell and Molecular Biology, Center for Immunology and Microbial Research, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA.
- Office of Research Infrastructure Programs, National Institute of Health, 6701 Democracy Blvd., Bethesda, MD, 20892, USA.
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3
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Cai Y, Naser NY, Ma J, Baneyx F. Precision Loading and Delivery of Molecular Cargo by Size-Controlled Coacervation of Gold Nanoparticles Functionalized with Elastin-like Peptides. Biomacromolecules 2024; 25:2390-2398. [PMID: 38478587 DOI: 10.1021/acs.biomac.3c01312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Thermoresponsive elastin-like peptides (ELPs) have been extensively investigated in biotechnology and medicine, but little attention has been paid to the process by which coacervation causes ELP-decorated particles to aggregate. Using gold nanoparticles (AuNPs) functionalized with a cysteine-terminated 96-repeat of the VPGVG sequence (V96-Cys), we show that the size of the clusters that reversibly form above the ELP transition temperature can be finely controlled in the 250 to 930 nm range by specifying the concentration of free V96-Cys in solution and using AuNPs of different sizes. We further find that the localized surface plasmon resonance peak of the embedded AuNPs progressively red-shifts with cluster size, likely due to an increase in particle-particle contacts. We exploit this fine control over size to homogeneously load precise amounts of the dye Nile Red and the antibiotic Tetracycline into clusters of different hydrodynamic diameters and deliver cargos near-quantitatively by deconstructing the aggregates below the ELP transition temperature. Beyond establishing a key role for free ELPs in the agglomeration of ELP-functionalized particles, our results provide a path for the thermally controlled delivery of precise quantities of molecular cargo. This capability might prove useful in combination photothermal therapies and theranostic applications, and to trigger spatially and temporally uniform responses from biological, electronic, or optical systems.
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Affiliation(s)
- Yifeng Cai
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Nada Y Naser
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Jinrong Ma
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States
| | - François Baneyx
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States
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Yoshida K, Suyama K, Matsushita S, Maeda I, Nose T. Development of the efficient preparation method for thermoresponsive elastin-like peptides using liquid-phase synthesis combined with fragment condensation strategy. J Pept Sci 2023; 29:e3528. [PMID: 37340996 DOI: 10.1002/psc.3528] [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: 04/20/2023] [Revised: 05/18/2023] [Accepted: 05/31/2023] [Indexed: 06/22/2023]
Abstract
Elastin-like peptides (ELPs) are synthetic peptides that mimic the characteristic hydrophobic amino acid repeat sequences of elastin and exhibit temperature-dependent reversible self-assembly properties. ELPs are expected to be used as temperature-responsive biomolecular materials across diverse industrial and research fields, and there is a requirement for a straightforward method to mass-produce them. Previously, we demonstrated that phenylalanine-containing ELP analogs, namely, (FPGVG)n , can undergo coacervation with short chains (n = 5). The Fmoc solid-phase peptide synthesis method is one strategy used to synthesize these short ELPs. However, owing to its low reaction efficiency, an efficient method for preparing ELPs is required. In this study, efficient preparation of ELPs was investigated using a liquid-phase synthesis method with a hydrophobic benzyl alcohol support (HBA-tag). Because HBA-tags are highly hydrophobic, they can be easily precipitated by the addition of poor solvents and recovered by filtration. This property allows the method to combine the advantages of the simplicity of solid-phase methods and the high reaction efficiency of liquid-phase methods. By utilizing liquid-phase fragment condensation with HBA-tags, short ELPs were successfully obtained in high yield and purity. Finally, the temperature-dependent response of the ELPs generated through fragment condensation was assessed using turbidity measurements, which revealed a reversible phase transition. Consequently, the ELPs exhibited a reversible phase transition, indicating successful synthesis of ELPs via fragment preparation with tags. These findings provide evidence of the potential for mass production of ELPs using this approach.
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Affiliation(s)
- Kohei Yoshida
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, Japan
| | - Keitaro Suyama
- Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
| | - Shin Matsushita
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, Japan
| | - Iori Maeda
- Department of Physics and Information Technology, Kyushu Institute of Technology, Fukuoka, Japan
| | - Takeru Nose
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka, Japan
- Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
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5
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Suyama K, Murashima M, Maeda I, Nose T. Enhancement of Aggregate Formation Through Aromatic Compound Adsorption in Elastin-like Peptide (FPGVG) 5 Analogs. Biomacromolecules 2023; 24:5265-5276. [PMID: 37865930 DOI: 10.1021/acs.biomac.3c00779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Elastin-like peptides (ELPs) exhibit temperature-dependent reversible self-assembly. Repetitive sequences derived from elastin, such as Val-Pro-Gly-Val-Gly (VPGVG), are essential for the self-assembly of ELPs. Previously, we developed (FPGVG)5 (F5), in which the first valine residue in the VPGVG sequence was replaced with phenylalanine, which showed strong self-aggregation ability. This suggests that interactions through the aromatic amino acid residues of ELPs could play an important role in self-assembly. In this study, we investigated the thermoresponsive behavior of F5 analogs in the presence of aromatic compounds. Turbidimetry, spectroscopy, and fluorescence measurements demonstrated that aromatic compounds interacted with F5 analogs below the transition temperature and enhanced the self-assembly ability of ELPs by stabilizing amyloid-like structures. Furthermore, quantitative high-performance liquid chromatography analyses showed that the F5 analogs could adsorb and remove hydrophobic aromatic compounds from aqueous solutions during aggregate formation. These results suggested that the F5 analogs can be applicable as scavengers of aromatic compounds.
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Affiliation(s)
- Keitaro Suyama
- Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Masayuki Murashima
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Iori Maeda
- Department of Physics and Information Technology, Kyushu Institute of Technology, Iizuka 820-8502, Fukuoka, Japan
| | - Takeru Nose
- Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
- Department of Chemistry, Faculty and Graduate School of Science, Kyushu University, Fukuoka 819-0395, Japan
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6
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Zashikhina N, Gandalipov E, Dzhuzha A, Korzhikov-Vlakh V, Korzhikova-Vlakh E. Dual drug loaded polypeptide delivery systems for cancer therapy. J Microencapsul 2023:1-19. [PMID: 37824702 DOI: 10.1080/02652048.2023.2270064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
The present study was aimed to prepare and examine in vitro novel dual-drug loaded delivery systems. Biodegradable nanoparticles based on poly(L-glutamic acid-co-D-phenylalanine) were used as nanocarriers for encapsulation of two drugs from the paclitaxel, irinotecan, and doxorubicin series. The developed delivery systems were characterised with hydrodynamic diameters less than 300 nm (PDI < 0.3). High encapsulation efficiencies (≥75%) were achieved for all single- and dual-drug formulations. The release studies showed faster release at acidic pH, with the release rate decreasing over time. The release patterns of the co-encapsulated forms of substances differed from those of the separately encapsulated drugs, suggesting differences in drug-polymer interactions. The joint action of encapsulated drugs was analysed using the colon cancer cells, both for the dual-drug delivery sytems and a mixture of single-drug formulations. The encapsulated forms of the drug combinations demonstrated comparable efficacy to the free forms, with the encapsulation enhancing solubility of the hydrophobic drug paclitaxel.
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Affiliation(s)
- Natalia Zashikhina
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia
| | - Erik Gandalipov
- International Institute of Solution Chemistry and Advanced Materials Technologies, ITMO University, St. Petersburg, Russia
| | - Apollinariia Dzhuzha
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg, Russia
| | - Viktor Korzhikov-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg, Russia
| | - Evgenia Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg, Russia
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7
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Attia SA, Truong AT, Phan A, Lee SJ, Abanmai M, Markanovic M, Avila H, Luo H, Ali A, Sreekumar PG, Kannan R, MacKay JA. αB-Crystallin Peptide Fused with Elastin-like Polypeptide: Intracellular Activity in Retinal Pigment Epithelial Cells Challenged with Oxidative Stress. Antioxidants (Basel) 2023; 12:1817. [PMID: 37891896 PMCID: PMC10604459 DOI: 10.3390/antiox12101817] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Oxidative stress-induced retinal degeneration is among the main contributing factors of serious ocular pathologies that can lead to irreversible blindness. αB-crystallin (cry) is an abundant component of the visual pathway in the vitreous humor, which modulates protein and cellular homeostasis. Within this protein exists a 20 amino acid fragment (mini-cry) with both chaperone and antiapoptotic activity. This study fuses this mini-cry peptide to two temperature-sensitive elastin-like polypeptides (ELP) with the goal of prolonging its activity in the retina. METHODS The biophysical properties and chaperone activity of cry-ELPs were confirmed by mass spectrometry, cloud-point determination, and dynamic light scattering 'DLS'. For the first time, this work compares a simpler ELP architecture, cry-V96, with a previously reported ELP diblock copolymer, cry-SI. Their relative mechanisms of cellular uptake and antiapoptotic potential were tested using retinal pigment epithelial cells (ARPE-19). Oxidative stress was induced with H2O2 and comparative internalization of both cry-ELPs was made using 2D and 3D culture models. We also explored the role of lysosomal membrane permeabilization by confocal microscopy. RESULTS The results indicated successful ELP fusion, cellular association with both 2D and 3D cultures, which were enhanced by oxidative stress. Both constructs suppressed apoptotic signaling (cleaved caspase-3); however, cry-V96 exhibited greater lysosomal escape. CONCLUSIONS ELP architecture is a critical factor to optimize delivery of therapeutic peptides, such as the anti-apoptotic mini-cry peptide; furthermore, the protection of mini-cry via ELPs is enhanced by lysosomal membrane permeabilization.
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Affiliation(s)
- Sara Aly Attia
- Department of Pharmacology and Pharmaceutical Sciences, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA; (S.A.A.); (A.T.T.); (A.P.); (M.A.); (M.M.); (H.A.); (H.L.); (A.A.)
| | - Anh Tan Truong
- Department of Pharmacology and Pharmaceutical Sciences, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA; (S.A.A.); (A.T.T.); (A.P.); (M.A.); (M.M.); (H.A.); (H.L.); (A.A.)
| | - Alvin Phan
- Department of Pharmacology and Pharmaceutical Sciences, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA; (S.A.A.); (A.T.T.); (A.P.); (M.A.); (M.M.); (H.A.); (H.L.); (A.A.)
| | - Shin-Jae Lee
- Mann Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA;
| | - Manal Abanmai
- Department of Pharmacology and Pharmaceutical Sciences, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA; (S.A.A.); (A.T.T.); (A.P.); (M.A.); (M.M.); (H.A.); (H.L.); (A.A.)
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Marinella Markanovic
- Department of Pharmacology and Pharmaceutical Sciences, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA; (S.A.A.); (A.T.T.); (A.P.); (M.A.); (M.M.); (H.A.); (H.L.); (A.A.)
| | - Hugo Avila
- Department of Pharmacology and Pharmaceutical Sciences, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA; (S.A.A.); (A.T.T.); (A.P.); (M.A.); (M.M.); (H.A.); (H.L.); (A.A.)
| | - Haozhong Luo
- Department of Pharmacology and Pharmaceutical Sciences, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA; (S.A.A.); (A.T.T.); (A.P.); (M.A.); (M.M.); (H.A.); (H.L.); (A.A.)
| | - Atham Ali
- Department of Pharmacology and Pharmaceutical Sciences, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA; (S.A.A.); (A.T.T.); (A.P.); (M.A.); (M.M.); (H.A.); (H.L.); (A.A.)
| | | | - Ram Kannan
- Doheny Eye Institute, Pasadena, CA 91103, USA; (P.G.S.); (R.K.)
- Stein Eye Institute, Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - J. Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA; (S.A.A.); (A.T.T.); (A.P.); (M.A.); (M.M.); (H.A.); (H.L.); (A.A.)
- Mann Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA;
- Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
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Dabravolski SA. Mitochondria-derived peptides in healthy ageing and therapy of age-related diseases. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2023; 136:197-215. [PMID: 37437978 DOI: 10.1016/bs.apcsb.2023.02.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Mitochondrial-derived peptides (MDPs) are small bioactive peptides encoded by mitochondrial DNA and involved in various stress-protecting mechanisms. To date, eight mitochondrial-derived peptides have been identified: MOTS-c sequence is hidden in the 12 S rRNA gene (MT-RNR1), and the other 7 (humanin and small humanin-like peptides 1-6) are encoded by the 16 S rRNA (MT-RNR2) gene. While the anti-apoptotic, anti-inflammatory and cardioprotective activities of MDPs are well described, recent research suggests that MDPs are sensitive metabolic sensors, closely connected with mtDNA mutation-associated diseases and age-associated metabolic disorders. In this chapter, we focus on the recent progress in understanding the metabolo-protective properties of MDPs, their role in maintenance of the cellular and mitochondrial homeostasis associated with age-related diseases: Alzheimer's disease, cognitive decline, macular degeneration and cataracts. Also, we will discuss MDPs-based and MDPs-targeted interventions to treat age-related diseases and extend a healthy lifespan.
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Affiliation(s)
- Siarhei A Dabravolski
- Department of Biotechnology Engineering, Braude Academic College of Engineering, Karmiel 2161002, Israel.
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9
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Morozova TI, García NA, Matsarskaia O, Roosen-Runge F, Barrat JL. Structural and Dynamical Properties of Elastin-Like Peptides near Their Lower Critical Solution Temperature. Biomacromolecules 2023; 24:1912-1923. [PMID: 36877869 DOI: 10.1021/acs.biomac.3c00124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Elastin-like peptides (ELPs) are artificially derived intrinsically disordered proteins (IDPs) mimicking the hydrophobic repeat unit in the protein elastin. ELPs are characterized by a lower critical solution temperature (LCST) in aqueous media. Here, we investigate the sequence GVG(VPGVG)3 over a wide range of temperatures (below, around, and above the LCST) and peptide concentrations employing all-atom molecular dynamics simulations, where we focus on the role of intra- and interpeptide interactions. We begin by investigating the structural properties of a single peptide that demonstrates a hydrophobic collapse with temperature, albeit moderate, because the sequence length is short. We observe a change in the interaction between two peptides from repulsive to attractive with temperature by evaluating the potential of mean force, indicating an LCST-like behavior. Next, we explore dynamical and structural properties of peptides in multichain systems. We report the formation of dynamical aggregates with coil-like conformation, in which valine central residues play an important role. Moreover, the lifetime of contacts between chains strongly depends on the temperature and can be described by a power-law decay that is consistent with the LCST-like behavior. Finally, the peptide translational and internal motion are slowed by an increase in the peptide concentration and temperature.
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Affiliation(s)
| | - Nicolás A García
- Instituto de Física del Sur (IFISUR), Departamento de Física, Universidad Nacional del Sur (UNS), CONICET, Av. L. N. Alem 1253, B8000CPB Bahía Blanca, Argentina
| | - Olga Matsarskaia
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38042 Grenoble, France
| | - Felix Roosen-Runge
- Department of Biomedical Science and Biofilms Research Center for Biointerfaces (BRCB), Malmö University, 20506 Malmö, Sweden
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10
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Lu T, Xia B, Chen G. Advances in polymer-based cell encapsulation and its applications in tissue repair. Biotechnol Prog 2023; 39:e3325. [PMID: 36651921 DOI: 10.1002/btpr.3325] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 01/06/2023] [Accepted: 01/11/2023] [Indexed: 01/19/2023]
Abstract
Cell microencapsulation is a more widely accepted area of biological encapsulation. In most cases, it involves fixing cells in polymer scaffolds or semi-permeable hydrogel capsules, providing the environment for protecting cells, allowing the exchange of nutrients and oxygen, and protecting cells against the attack of the host immune system by preventing the entry of antibodies and cytotoxic immune cells. Hydrogel encapsulation provides a three-dimensional (3D) environment similar to that experienced in vivo, so it can maintain normal cellular functions to produce tissues similar to those in vivo. Embedded cells can be genetically modified to release specific therapeutic products directly at the target site, thereby eliminating the side effects of systemic treatments. Cellular microcarriers need to meet many extremely high standards regarding their biocompatibility, cytocompatibility, immunoseparation capacity, transport, mechanical, and chemical properties. In this article, we discuss the biopolymer gels used in tissue engineering applications and the brief introduction of cell encapsulation for therapeutic protein production. Also, we review polymer biomaterials and methods for preparing cell microcarriers for biomedical applications. At the same time, in order to improve the application performance of cell microcarriers in vivo, we also summarize the main limitations and improvement strategies of cell encapsulation. Finally, the main applications of polymer cell microcarriers in regenerative medicine are summarized.
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Affiliation(s)
- Tangfang Lu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Bin Xia
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing, People's Republic of China
| | - Guobao Chen
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, People's Republic of China
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11
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Tailored Functionalized Protein Nanocarriers for Cancer Therapy: Recent Developments and Prospects. Pharmaceutics 2023; 15:pharmaceutics15010168. [PMID: 36678796 PMCID: PMC9861211 DOI: 10.3390/pharmaceutics15010168] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 01/06/2023] Open
Abstract
Recently, the potential use of nanoparticles for the targeted delivery of therapeutic and diagnostic agents has garnered increased interest. Several nanoparticle drug delivery systems have been developed for cancer treatment. Typically, protein-based nanocarriers offer several advantages, including biodegradability and biocompatibility. Using genetic engineering or chemical conjugation approaches, well-known naturally occurring protein nanoparticles can be further prepared, engineered, and functionalized in their self-assembly to meet the demands of clinical production efficiency. Accordingly, promising protein nanoparticles have been developed with outstanding tumor-targeting capabilities, ultimately overcoming multidrug resistance issues, in vivo delivery barriers, and mimicking the tumor microenvironment. Bioinspired by natural nanoparticles, advanced computational techniques have been harnessed for the programmable design of highly homogenous protein nanoparticles, which could open new routes for the rational design of vaccines and drug formulations. The current review aims to present several significant advancements made in protein nanoparticle technology, and their use in cancer therapy. Additionally, tailored construction methods and therapeutic applications of engineered protein-based nanoparticles are discussed.
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12
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Elastin-like polypeptide-based micelles as a promising platform in nanomedicine. J Control Release 2023; 353:713-726. [PMID: 36526018 DOI: 10.1016/j.jconrel.2022.12.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
New and improved nanomaterials are constantly being developed for biomedical purposes. Nanomaterials based on elastin-like polypeptides (ELPs) have increasingly shown potential over the past two decades. These polymers are artificial proteins of which the design is based on human tropoelastin. Due to this similarity, ELP-based nanomaterials are biodegradable and therefore well suited to drug delivery. The assembly of ELP molecules into nanoparticles spontaneously occurs at temperatures above a transition temperature (Tt). The ELP sequence influences both the Tt and the physicochemical properties of the assembled nanomaterial. Nanoparticles with desired properties can hence be designed by choosing the appropriate sequence. A promising class of ELP nanoparticles are micelles assembled from amphiphilic ELP diblock copolymers. Such micelles are generally uniform and well defined. Furthermore, site-specific attachment of cargo to the hydrophobic block results in micelles with the cargo shielded inside their core, while conjugation to the hydrophilic block causes the cargo to reside in the corona where it is available for interactions. Such control over particle design is one of the main contributing factors for the potential of ELP-based micelles as a drug delivery system. Additionally, the micelles are easily loaded with protein or peptide-based cargo by expressing it as a fusion protein. Small molecule drugs and other cargo types can be either covalently conjugated to ELP domains or physically entrapped inside the micelle core. This review aims to give an overview of ELP-based micelles and their applications in nanomedicine.
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13
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Recombinant protein polymers as carriers of chemotherapeutic agents. Adv Drug Deliv Rev 2022; 190:114544. [PMID: 36176240 DOI: 10.1016/j.addr.2022.114544] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 09/02/2022] [Accepted: 09/13/2022] [Indexed: 01/24/2023]
Abstract
Chemotherapy is the standard of care for the treatment of cancer and infectious diseases. However, its use is associated with severe toxicity and resistance arising mainly due to non-specificity, resulting in disease progression. The advancement in recombinant technology has led to the synthesis of genetically engineered protein polymers like Elastin-like polypeptide (ELP), Silk-like polypeptide (SLP), hybrid protein polymers with specific sequences to impart precisely controlled properties and to target proteins that have provided satisfactory preclinical outcomes. Such protein polymers have been exploited for the formulation and delivery of chemotherapeutics for biomedical applications. The use of such polymers has not only solved the limitation of conventional chemotherapy but has also improved the therapeutic index of typical drug delivery systems. This review, therefore, summarizes the development of such advanced recombinant protein polymers designed to deliver chemotherapeutics and also discusses the key challenges associated with their current usage and their application in the future.
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14
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Gong L, Yang Z, Zhang F, Gao W. Cytokine conjugates to elastin-like polypeptides. Adv Drug Deliv Rev 2022; 190:114541. [PMID: 36126792 DOI: 10.1016/j.addr.2022.114541] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/25/2022] [Accepted: 09/13/2022] [Indexed: 01/24/2023]
Abstract
Cytokines are a group of pleiotropic proteins which are crucial for various biological processes and useful as therapeutics. However, they usually suffer from the poor stability, extreme short circulation half-life, difficulty in high-yield and large-scale production and side effects, which greatly restricts their applications. Over the past decades, conjugation of cytokines with elastin-like polypeptides (ELPs), a type of promising biomaterials, have showed great potential in solving these challenges due to ELP's thermal responsiveness, excellent biocompatibility and biodegradability, non-immunogenicity, and ease of design and control at the genetic level. This review presents recent progress in the design and production of a variety of ELP conjugated cytokines for extended circulation, enhanced stability, increased soluble protein expression, simplified purification, improved drug delivery, and controlled release. Notably, the unique thermoresponsive properties of cytokine-ELP conjugates make it possible to self-assemble into micelles with drastically extended circulatory half-life for targeted delivery or to in situ form drug depots for topical administration and controlled release. The challenges and issues in the emerging field are further discussed and the future directions are pointed out at the end of this review.
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Affiliation(s)
- Like Gong
- Institute of Medical Technology, Peking University Health Science Center, Beijing 100191, China; Department of Geriatric Dentistry, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing 100081, China; Biomedical Engineering Department, Peking University, Beijing 100191, China; Peking University International Cancer Institute, Beijing 100191, China; Peking University-Yunnan Baiyao International Medical Research Center, Beijing 100191, China
| | - Zhaoying Yang
- Institute of Medical Technology, Peking University Health Science Center, Beijing 100191, China; Department of Geriatric Dentistry, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing 100081, China; Biomedical Engineering Department, Peking University, Beijing 100191, China; Peking University International Cancer Institute, Beijing 100191, China; Peking University-Yunnan Baiyao International Medical Research Center, Beijing 100191, China
| | - Fan Zhang
- Institute of Medical Technology, Peking University Health Science Center, Beijing 100191, China; Department of Geriatric Dentistry, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing 100081, China; Biomedical Engineering Department, Peking University, Beijing 100191, China; Peking University International Cancer Institute, Beijing 100191, China; Peking University-Yunnan Baiyao International Medical Research Center, Beijing 100191, China
| | - Weiping Gao
- Institute of Medical Technology, Peking University Health Science Center, Beijing 100191, China; Department of Geriatric Dentistry, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing 100081, China; Biomedical Engineering Department, Peking University, Beijing 100191, China; Peking University International Cancer Institute, Beijing 100191, China; Peking University-Yunnan Baiyao International Medical Research Center, Beijing 100191, China.
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15
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Li Y, Champion JA. Self-assembling nanocarriers from engineered proteins: Design, functionalization, and application for drug delivery. Adv Drug Deliv Rev 2022; 189:114462. [PMID: 35934126 DOI: 10.1016/j.addr.2022.114462] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/09/2022] [Accepted: 07/15/2022] [Indexed: 01/24/2023]
Abstract
Self-assembling proteins are valuable building blocks for constructing drug nanocarriers due to their self-assembly behavior, monodispersity, biocompatibility, and biodegradability. Genetic and chemical modifications allow for modular design of protein nanocarriers with effective drug encapsulation, targetability, stimuli responsiveness, and in vivo half-life. Protein nanocarriers have been developed to deliver various therapeutic molecules including small molecules, proteins, and nucleic acids with proven in vitro and in vivo efficacy. This article reviews recent advances in protein nanocarriers that are not derived from natural protein nanostructures, such as protein cages or virus like particles. The protein nanocarriers described here are self-assembled from rationally or de novo designed recombinant proteins, as well as recombinant proteins complexed with other biomolecules, presenting properties that are unique from those of natural protein carriers. Design, functionalization, and therapeutic application of protein nanocarriers will be discussed.
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Affiliation(s)
- Yirui Li
- BioEngineering Program, Georgia Institute of Technology, United States
| | - Julie A Champion
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 950 Atlantic Drive NW, Atlanta, GA 30332, United States; BioEngineering Program, Georgia Institute of Technology, United States.
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16
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Steinhauff D, Armstrong B, Jensen MM, Ghandehari H. Development of Thermoresponsive Protein Complexes for Targeting CD20 Receptors. Macromol Biosci 2022; 22:e2200028. [PMID: 35526100 DOI: 10.1002/mabi.202200028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/04/2022] [Indexed: 11/07/2022]
Abstract
Therapeutics targeting cell receptors can elicits biological responses in situ. However, the ability to dictate when and where these responses occur is a current challenge. Therapeutic proteins can be combined with stimuli-responsive peptides to increase targeting and stimuli responsive behavior. To this end we have genetically engineered an elastinlike polypeptide (ELP) fusion protein for selective ELPylation. The addition of a charged foldable region provides these protein subunits with varied thermoresponsive properties from their parent ELPs. These subunits have responsive secondary structures, dependent on pH, indicating the capability to form coiled-coils with a complementary peptide tag. A Rituximab conjugate was generated herein, containing the complementary peptide. Upon mixing of the ELP and Rituximab subunits, the resulting protein complexes targeted CD20 receptors on Raji B cells, resulting in at least 2-fold increase in mean fluorescent intensities. These ELP subunits folded in vitro with complimentary the generated Rituximab conjugate. This work provides the basis for the design of a therapeutic stimuli-responsive biomacromolecule for targeting receptors. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Douglas Steinhauff
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Dr., Salt Lake City, UT, 84112, USA
| | - Blair Armstrong
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Dr., Salt Lake City, UT, 84112, USA
| | - Mark Martin Jensen
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Dr., Salt Lake City, UT, 84112, USA
| | - Hamidreza Ghandehari
- Department of Biomedical Engineering, University of Utah, 36 S. Wasatch Dr., Salt Lake City, UT, 84112, USA.,Utah Center for Nanomedicine, Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, 36 S. Wasatch Dr., Salt Lake City, UT, 884112, USA
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17
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Adeyemi SA, Choonara YE. Current advances in cell therapeutics: A biomacromolecules application perspective. Expert Opin Drug Deliv 2022; 19:521-538. [PMID: 35395914 DOI: 10.1080/17425247.2022.2064844] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Many chronic diseases have evolved and to circumvent the limitations of using conventional drug therapies, smart cell encapsulating delivery systems have been explored to customize the treatment with alignment to disease longevity. Cell therapeutics has advanced in tandem with improvements in biomaterials that can suitably deliver therapeutic cells to achieve targeted therapy. Among the promising biomacromolecules for cell delivery are those that share bio-relevant architecture with the extracellular matrix and display extraordinary compatibility in the presence of therapeutic cells. Interestingly, many biomacromolecules that fulfil these tenets occur naturally and can form hydrogels. AREAS COVERED This review provides a concise incursion into the paradigm shift to cell therapeutics using biomacromolecules. Advances in the design and use of biomacromolecules to assemble smart therapeutic cell carriers is discussed in light of their pivotal role in enhancing cell encapsulation and delivery. In addition, the principles that govern the application of cell therapeutics in diabetes, neuronal disorders, cancers and cardiovascular disease are outlined. EXPERT OPINION Cell therapeutics promises to revolutionize the treatment of various secretory cell dysfunctions. Current and future advances in designing functional biomacromolecules will be critical to ensure that optimal delivery of therapeutic cells is achieved with desired biosafety and potency.
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Affiliation(s)
- Samson A Adeyemi
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Science, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Science, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
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18
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Isaacson KJ, Van Devener BR, Steinhauff DB, Jensen MM, Cappello J, Ghandehari H. Liquid-cell transmission electron microscopy for imaging of thermosensitive recombinant polymers. J Control Release 2022; 344:39-49. [PMID: 35182613 PMCID: PMC9121634 DOI: 10.1016/j.jconrel.2022.02.019] [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: 09/07/2021] [Revised: 02/09/2022] [Accepted: 02/13/2022] [Indexed: 11/19/2022]
Abstract
Various polymers used in controlled release applications exhibit solution-based thermal responses. Unfortunately, very few characterization and imaging techniques permit resolution of individual polymers during their thermally-triggered phase transitions. Here, we demonstrate the use of temperature-ramp liquid-cell transmission electron microscopy (LCTEM) for real-time evaluation of the solution and interfacial behavior of elastinlike polypeptides (ELPs) and their self-assembled nanostructures over a temperature range incorporating their intrinsic lower critical solution temperatures (LCSTs). Individual polymers and supramolecular assemblies were discriminated dependent upon solubility states. The recombinant polymers were shown to adsorb to the silicon-nitride chip window from the buffered saline solution and desorb in a temperature-dependent manner. Silk-elastinlike protein block copolymers (SELPs) (composed of repeat peptide motifs of silk and elastin) differed from ELPs in thermal behavior. While both polymers were shown to cluster, only SELPs formed robust amyloid-like fibers upon heating.
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Affiliation(s)
- Kyle J Isaacson
- Utah Center for Nanomedicine, University of Utah, Salt Lake City, UT, USA; Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
| | - Brian R Van Devener
- Utah Nanofab - Nano Scale Imaging and Surface Analysis Lab, University of Utah, Salt Lake City, UT, USA
| | - Douglas B Steinhauff
- Utah Center for Nanomedicine, University of Utah, Salt Lake City, UT, USA; Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
| | - M Martin Jensen
- Utah Center for Nanomedicine, University of Utah, Salt Lake City, UT, USA; Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
| | - Joseph Cappello
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA
| | - Hamidreza Ghandehari
- Utah Center for Nanomedicine, University of Utah, Salt Lake City, UT, USA; Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA; Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA.
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19
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Avila H, Truong A, Tyrpak D, Lee SJ, Lei S, Li Y, Okamoto C, Hamm-Alvarez S, MacKay JA. Intracellular Dynamin Elastin-like Polypeptides Assemble into Rodlike, Spherical, and Reticular Dynasomes. Biomacromolecules 2022; 23:265-275. [PMID: 34914359 PMCID: PMC9159747 DOI: 10.1021/acs.biomac.1c01251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Dynamin (DNM) is a family of large GTPases possessing a unique mechanical ability to "pinch" off vesicles entering cells. DNM2 is the most ubiquitously expressed member of the DNM family. We developed a novel tool based on elastin-like polypeptide (ELP) technology to quickly, precisely, and reversibly modulate the structure of DNM2. ELPs are temperature-sensitive biopolymers that self-assemble into microdomains above sharp transition temperatures. When linked together, DNM2 and a temperature-sensitive ELP fusion organize into a range of distinct temperature-dependent structures above a sharp transition temperature, which were not observed with wild-type DNM2 or a temperature-insensitive ELP fusion control. The structures comprised three different morphologies, which were prevalent at different temperature ranges. The size of these structures was influenced by an inhibitor of the DNM2 GTPase activity, dynasore; furthermore, they appear to entrap co-expressed cytosolic ELPs. Having demonstrated an unexpected diversity of morphologically distinct structures, DNM2-ELP fusions may have applications in the exploration of dynamin-dependent biology.
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Affiliation(s)
- Hugo Avila
- USC School of Pharmacy, Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089
| | - Anh Truong
- USC School of Pharmacy, Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089
| | - David Tyrpak
- USC School of Pharmacy, Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089
| | - Shin-Jae Lee
- USC Viterbi School of Engineering, Department of Biomedical Engineering, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089
| | - Siqi Lei
- USC School of Pharmacy, Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089
| | - Yaocun Li
- USC School of Pharmacy, Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089
| | - Curtis Okamoto
- USC School of Pharmacy, Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089
| | - Sarah Hamm-Alvarez
- USC School of Pharmacy, Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089,USC Keck School of Medicine, Department of Ophthalmology, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089
| | - J. Andrew MacKay
- USC School of Pharmacy, Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089,USC Viterbi School of Engineering, Department of Biomedical Engineering, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089,USC Keck School of Medicine, Department of Ophthalmology, University of Southern California School of Pharmacy, 1985 Zonal Ave., PSC 306A, Los Angeles, CA, 90089
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20
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van Strien J, Warmenhoven H, Logiantara A, Makurat M, Aglas L, Bethanis A, Leboux R, van Rijt L, MacKay JA, van Schijndel JW, Schneider G, Olsthoorn R, Jiskoot W, van Ree R, Kros A. Bet v 1-displaying elastin-like polypeptide nanoparticles induce a strong humoral and weak CD4+ T-cell response against Bet v 1 in a murine immunogenicity model. Front Immunol 2022; 13:1006776. [PMID: 36275650 PMCID: PMC9583423 DOI: 10.3389/fimmu.2022.1006776] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/07/2022] [Indexed: 11/13/2022] Open
Abstract
There is growing concern about the toxicity of colloidal aluminum salts used as adjuvants in subcutaneous allergen immunotherapy (SCIT). Therefore, alternative adjuvants and delivery systems are being explored to replace alum in SCIT. We applied micellar elastin-like polypeptides (ELPs), a type of self-assembling protein, to replace alum as vaccine adjuvant in birch pollen SCIT. ELP and an ELP-Bet v 1 fusion protein were expressed in E. coli and purified by immuno-affinity chromatography and inverse-transition cycling (ITC). Nanoparticles self-assembled from ELP and a 9:1 ELP/ELP-Bet v 1 mixture were characterized by using dynamic light scattering and atomic force microscopy. Allergenicity was assessed by measuring mediator release from rat basophilic leukemia cells transformed with the human FcϵR1 and sensitized with sera derived from human birch pollen allergic patients. Humoral and T-cell immunity were investigated by immunizing naïve mice with the ELP/ELP-Bet v 1 nanoparticles or alum-adsorbed Bet v 1, both containing 36 µg Bet v 1. ELP and ELP/ELP-Bet v 1 self-assembled at 37°C into spherically shaped micelles with a diameter of ~45 nm. ELP conjugation made Bet v 1 hypo-allergenic (10-fold). Compared to alum-adsorbed Bet v 1, ELP/ELP-Bet v 1 nanoparticles induced stronger IgG responses with an earlier onset. Additionally, ELP/ELP-Bet v 1 did not induce Th2 skewing cytokines and IgE. The hypoallergenic character and strong humoral immune response in the absence of a Th2-skewing T-cell response make ELP-based nanoparticles a promising candidate to replace alum in SCIT.
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Affiliation(s)
- Jolinde van Strien
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, Netherlands
| | - Hans Warmenhoven
- Department of Experimental Immunology, Amsterdam University Medical Centers, Amsterdam, Netherlands.,R&D Department, Haarlems Allergenen Laboratorium (HAL) Allergy B.V., Leiden, Netherlands
| | - Adrian Logiantara
- Department of Experimental Immunology, Amsterdam University Medical Centers, Amsterdam, Netherlands
| | - Max Makurat
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, Netherlands
| | - Lorenz Aglas
- Division of Allergy and Immunology, Department of Biosciences, Paris Lodron University of Salzburg, Salzburg, Austria
| | - Athanasios Bethanis
- Division of Allergy and Immunology, Department of Biosciences, Paris Lodron University of Salzburg, Salzburg, Austria
| | - Romain Leboux
- Department of BioTherapeutics, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden, Netherlands
| | - Leonie van Rijt
- Department of Experimental Immunology, Amsterdam University Medical Centers, Amsterdam, Netherlands
| | - J Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, United States
| | | | - Gregory Schneider
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, Netherlands
| | - René Olsthoorn
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, Netherlands
| | - Wim Jiskoot
- Department of BioTherapeutics, Leiden Academic Centre for Drug Research (LACDR), Leiden University, Leiden, Netherlands
| | - Ronald van Ree
- Department of Experimental Immunology, Amsterdam University Medical Centers, Amsterdam, Netherlands.,Department of Otorhinolaryngology, Amsterdam University Medical Centers, Amsterdam, Netherlands
| | - Alexander Kros
- Department of Supramolecular and Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, Netherlands
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21
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Sharma B, Ma Y, Hiraki HL, Baker BM, Ferguson AL, Liu AP. Facile formation of giant elastin-like polypeptide vesicles as synthetic cells. Chem Commun (Camb) 2021; 57:13202-13205. [PMID: 34816831 DOI: 10.1039/d1cc05579h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We demonstrate the facile and robust generation of giant peptide vesicles by using an emulsion transfer method. These robust vesicles can sustain chemical and physical stresses. The peptide vesicles can host cell-free expression reactions by encapsulating essential ingredients. We show the incorporation of another cell-free expressed elastin-like polypeptide into the existing membrane of the peptide vesicles.
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Affiliation(s)
- Bineet Sharma
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
| | - Yutao Ma
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Harrison L Hiraki
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Brendon M Baker
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.,Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Andrew L Ferguson
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Allen P Liu
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA. .,Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.,Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, Michigan 48105, USA.,Department of Biophysics, University of Michigan, Ann Arbor, Michigan 48105, USA
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22
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Bidwell GL. Novel Protein Therapeutics Created Using the Elastin-Like Polypeptide Platform. Physiology (Bethesda) 2021; 36:367-381. [PMID: 34486397 DOI: 10.1152/physiol.00026.2021] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Elastin-like polypeptides (ELPs) are bioengineered proteins that have a unique physical property, a thermally triggered inverse phase transition, that can be exploited for drug delivery. ELP-fusion proteins can be used as soluble biologics, thermally targeted drug carriers, self-assembling nanoparticles, and slow-release drug depots. Because of their unique physical characteristics and versatility for delivery of nearly any type of therapeutic, ELP-based drug delivery systems represent a promising platform for biologics development.
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Affiliation(s)
- Gene L Bidwell
- Departments of Neurology, Cell and Molecular Biology, and Pharmacology, University of Mississippi Medical Center, Jackson, Mississippi
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23
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Zaheer Y, Vorup‐Jensen T, Webster TJ, Ahmed M, Khan WS, Ihsan A. Protein based nanomedicine: Promising therapeutic modalities against inflammatory disorders. NANO SELECT 2021. [DOI: 10.1002/nano.202100214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Yumna Zaheer
- National Institute for Biotechnology and Genetic Engineering College Pakistan Institute of Engineering and Applied Sciences (NIBGE‐C, PIEAS) Faisalabad Punjab 38000 Pakistan
| | - Thomas Vorup‐Jensen
- Department of Biomedicine and Interdisciplinary Nanoscience Center Aarhus University Aarhus Denmark
| | - Thomas J. Webster
- Department of Chemical Engineering Northeastern University Boston Massachusetts USA
| | - Mukhtiar Ahmed
- Chemistry of Interfaces Luleå University of Technology Luleå Sweden
| | - Waheed S. Khan
- National Institute for Biotechnology and Genetic Engineering College Pakistan Institute of Engineering and Applied Sciences (NIBGE‐C, PIEAS) Faisalabad Punjab 38000 Pakistan
| | - Ayesha Ihsan
- National Institute for Biotechnology and Genetic Engineering College Pakistan Institute of Engineering and Applied Sciences (NIBGE‐C, PIEAS) Faisalabad Punjab 38000 Pakistan
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24
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Li L, Shields CW, Huang J, Zhang Y, Ohiri KA, Yellen BB, Chilkoti A, López GP. Rapid capture of biomolecules from blood via stimuli-responsive elastomeric particles for acoustofluidic separation. Analyst 2021; 145:8087-8096. [PMID: 33079081 DOI: 10.1039/d0an01164a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The detection of biomarkers in blood often requires extensive and time-consuming sample preparation to remove blood cells and concentrate the biomarker(s) of interest. We demonstrate proof-of-concept for a chip-based, acoustofluidic method that enables the rapid capture and isolation of a model protein biomarker (i.e., streptavidin) from blood for off-chip quantification. Our approach makes use of two key components - namely, soluble, thermally responsive polypeptides fused to ligands for the homogeneous capture of biomarkers from whole blood and silicone microparticles functionalized with similar, tethered, thermally responsive polypeptides. When the two components are mixed together and subjected to a mild thermal trigger, the thermally responsive moieties undergo a phase transition, causing the untethered (soluble) polypeptides to co-aggregate with the particle-bound polypeptides. The mixture is then diluted with warm buffer and injected into a microfluidic channel supporting a bulk acoustic standing wave. The biomarker-bearing particles migrate to the pressure antinodes, whereas blood cells migrate to the pressure node, leading to rapid separation with efficiencies exceeding 90% in a single pass. The biomarker-bearing particles can then be analyzed via flow cytometry, with a limit of detection of 0.75 nM for streptavidin spiked in blood plasma. Finally, by cooling the solution below the solubility temperature of the polypeptides, greater than 75% of the streptavidin is released from the microparticles, offering a unique approach for downstream analysis (e.g., sequencing or structural analysis). Overall, this methodology has promise for the detection, enrichment and analysis of some biomarkers from blood and other complex biological samples.
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Affiliation(s)
- Linying Li
- NSF Research Triangle Materials Research Science and Engineering Center, Durham, NC 27708, USA.
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25
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Kang HJ, Kumar S, D'Elia A, Dash B, Nanda V, Hsia HC, Yarmush ML, Berthiaume F. Self-assembled elastin-like polypeptide fusion protein coacervates as competitive inhibitors of advanced glycation end-products enhance diabetic wound healing. J Control Release 2021; 333:176-187. [PMID: 33781808 PMCID: PMC10927318 DOI: 10.1016/j.jconrel.2021.03.032] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 03/24/2021] [Accepted: 03/24/2021] [Indexed: 02/08/2023]
Abstract
Chronic and non-healing skin wounds are some of the most significant complications in patients with advanced diabetes. A contributing mechanism to this pathology is the non-enzymatic glycation of proteins due to hyperglycemia, leading to the formation of advanced glycation end products (AGEs). AGEs bind to the receptor for AGEs (RAGE), which triggers pro-inflammatory signals that may inhibit the proliferative phase of wound healing. Soluble forms of RAGE (sRAGE) may be used as a competitive inhibitor of AGE-mediated signaling; however, sRAGE is short-lived in the highly proteolytic wound environment. We developed a recombinant fusion protein containing the binding domain of RAGE (vRAGE) linked to elastin-like polypeptides (ELPs) that self-assembles into coacervates at around 30-31 °C. The coacervate size was concentration and temperature-dependent, ranging between 500 and 1600 nm. vRAGE-ELP reversed several AGE-mediated changes in cultured human umbilical vein endothelial cells, including a decrease in viable cell number, an increase in levels of reactive oxygen species (ROS), and an increased expression of the pro-inflammatory marker, intercellular adhesion molecule-1 (ICAM-1). vRAGE-ELP was stable in elastase in vitro for 7 days. When used in a single topical application on full-thickness excisional skin wounds in diabetic mice, wound closure was accelerated, with 90% and 100% wound closure on post-wounding days 28 and 35, respectively, compared to 62% and 85% on the same days in animals treated with vehicle control, consisting of ELP alone. This coacervate system topically delivering a competitive inhibitor of AGEs has potential for the treatment of diabetic wounds.
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Affiliation(s)
- Hwan June Kang
- Department of Biomedical Engineering, Rutgers University, Piscataway, NJ 08854, USA
| | - Suneel Kumar
- Department of Biomedical Engineering, Rutgers University, Piscataway, NJ 08854, USA
| | - Arielle D'Elia
- Department of Biomedical Engineering, Rutgers University, Piscataway, NJ 08854, USA
| | - Biraja Dash
- Department of Surgery (Plastic), Yale School of Medicine, New Haven, CT 06510, USA
| | - Vikas Nanda
- Department of Biochemistry and Molecular Biology, Robert Wood Johnson Medical School, Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, NJ 08854, USA
| | - Henry C Hsia
- Department of Surgery (Plastic), Yale School of Medicine, New Haven, CT 06510, USA
| | - Martin L Yarmush
- Department of Biomedical Engineering, Rutgers University, Piscataway, NJ 08854, USA
| | - François Berthiaume
- Department of Biomedical Engineering, Rutgers University, Piscataway, NJ 08854, USA.
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Abdelghani M, Shao J, Le DHT, Wu H, van Hest JCM. Self-Assembly or Coassembly of Multiresponsive Histidine-Containing Elastin-Like Polypeptide Block Copolymers. Macromol Biosci 2021; 21:e2100081. [PMID: 33942499 DOI: 10.1002/mabi.202100081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/25/2021] [Indexed: 11/05/2022]
Abstract
In this study a histidine containing elastin-like polypeptide (ELP) diblock copolymer is described with multiresponsive assembly behavior. Self-assembly into micelles is examined by two methods. First, the self-assembly is triggered by the addition of divalent metal ions, with Zn2+ being the most suitable one. Increasing the Zn2+ concentration stabilizes the nanoparticles over a large temperature window (4-45 °C). This diblock exhibits furthermore pH-responsiveness, and particles disassemble under mildly acidic conditions. Second, the coassembly of this ELP with a diblock ELP is examined, which is not responsive to pH and metal ions. Coassembly is triggered by heating the ELPs quickly above the transition temperature of the less hydrophobic block, which results in stable nanoparticles without the need to add metal ions. This novel ELP system offers a versatile modular nanocarrier platform that can respond to different stimuli and can be tuned effectively.
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Affiliation(s)
- Mona Abdelghani
- Bio-Organic Chemistry, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Helix (STO 3.41), P. O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Jingxin Shao
- Bio-Organic Chemistry, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Helix (STO 3.41), P. O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Duc H T Le
- Bio-Organic Chemistry, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Helix (STO 3.41), P. O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Hanglong Wu
- Bio-Organic Chemistry, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Helix (STO 3.41), P. O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Jan C M van Hest
- Bio-Organic Chemistry, Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Helix (STO 3.41), P. O. Box 513, Eindhoven, 5600 MB, The Netherlands
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Alvisi N, Gutiérrez-Mejía FA, Lokker M, Lin YT, de Jong AM, van Delft F, de Vries R. Self-Assembly of Elastin-like Polypeptide Brushes on Silica Surfaces and Nanoparticles. Biomacromolecules 2021; 22:1966-1979. [PMID: 33871996 PMCID: PMC8154268 DOI: 10.1021/acs.biomac.1c00067] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Control over the placement and activity of biomolecules on solid surfaces is a key challenge in bionanotechnology. While covalent approaches excel in performance, physical attachment approaches excel in ease of processing, which is equally important in many applications. We show how the precision of recombinant protein engineering can be harnessed to design and produce protein-based diblock polymers with a silica-binding and highly hydrophilic elastin-like domain that self-assembles on silica surfaces and nanoparticles to form stable polypeptide brushes that can be used as a scaffold for later biofunctionalization. From atomic force microscopy-based single-molecule force spectroscopy, we find that individual silica-binding peptides have high unbinding rates. Nevertheless, from quartz crystal microbalance measurements, we find that the self-assembled polypeptide brushes cannot easily be rinsed off. From atomic force microscopy imaging and bulk dynamic light scattering, we find that the binding to silica induces fibrillar self-assembly of the peptides. Hence, we conclude that the unexpected stability of these self-assembled polypeptide brushes is at least in part due to peptide-peptide interactions of the silica-binding blocks at the silica surface.
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Affiliation(s)
- Nicolò Alvisi
- Physical Chemistry and Soft Matter, Wageningen University and Research, Stippeneng 4, Wageningen 6708 WE, The Netherlands
| | - Fabiola A Gutiérrez-Mejía
- Physical Chemistry and Soft Matter, Wageningen University and Research, Stippeneng 4, Wageningen 6708 WE, The Netherlands
| | - Meike Lokker
- Physical Chemistry and Soft Matter, Wageningen University and Research, Stippeneng 4, Wageningen 6708 WE, The Netherlands
| | - Yu-Ting Lin
- Department of Applied Physics and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven 5600 MB, The Netherlands
| | - Arthur M de Jong
- Department of Applied Physics and Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven 5600 MB, The Netherlands
| | - Floris van Delft
- Laboratory of Organic Chemistry, Wageningen University and Research, Stippeneng 4, Wageningen 6708 WE, The Netherlands
| | - Renko de Vries
- Physical Chemistry and Soft Matter, Wageningen University and Research, Stippeneng 4, Wageningen 6708 WE, The Netherlands
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28
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Ju Y, Edman MC, Guo H, Janga SR, Peddi S, Louie SG, Junge JA, MacKay JA, Hamm-Alvarez SF. Intralacrimal Sustained Delivery of Rapamycin Shows Therapeutic Effects without Systemic Toxicity in a Mouse Model of Autoimmune Dacryoadenitis Characteristic of Sjögren's Syndrome. Biomacromolecules 2020; 22:1102-1114. [PMID: 33356170 DOI: 10.1021/acs.biomac.0c01468] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Sjögren's syndrome (SS) is an autoimmune disease associated with severe exocrinopathy, which is characterized by profound lymphocytic infiltration (dacryoadenitis) and loss of function of the tear-producing lacrimal glands (LGs). Systemic administration of Rapamycin (Rapa) significantly reduces LG inflammation in the male Nonobese Diabetic (NOD) model of SS-associated autoimmune dacryoadenitis. However, the systemic toxicity of this potent immunosuppressant limits its application. As an alternative, this paper reports an intra-LG delivery method using a depot formulation comprised of a thermoresponsive elastin-like polypeptide (ELP) and FKBP, the cognate receptor for Rapa (5FV). Depot formation was confirmed in excised whole LG using cleared tissue and observation by both laser-scanning confocal and lightsheet microscopy. The LG depot was evaluated for safety, efficacy, and intra-LG pharmacokinetics in the NOD mouse disease model. Intra-LG injection with the depot formulation (5FV) retained Rapa in the LG for a mean residence time (MRT) of 75.6 h compared to Rapa delivery complexed with a soluble carrier control (5FA), which had a MRT of 11.7 h in the LG. Compared to systemic delivery of Rapa every other day for 2 weeks (seven doses), a single intra-LG depot of Rapa representing 16-fold less total drug was sufficient to inhibit LG inflammation and improve tear production. This treatment modality further reduced markers of hyperglycemia and hyperlipidemia while showing no evidence of necrosis or fibrosis in the LG. This approach represents a potential new therapy for SS-related autoimmune dacryoadenitis, which may be adapted for local delivery at other sites of inflammation; furthermore, these findings reveal the utility of optical imaging for monitoring the disposition of locally administered therapeutics.
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Affiliation(s)
- Yaping Ju
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90033, United States
| | - Maria C Edman
- Department of Ophthalmology, Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
| | - Hao Guo
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90033, United States
| | - Srikanth Reddy Janga
- Department of Ophthalmology, Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
| | - Santosh Peddi
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90033, United States
| | - Stan G Louie
- Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, California 90033, United States
| | - Jason A Junge
- Department of Biological Sciences, Translational Imaging Center, Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, California 90089, United States
| | - J Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90033, United States.,Department of Ophthalmology, Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States.,Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California 90089, United States
| | - Sarah F Hamm-Alvarez
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, California 90033, United States.,Department of Ophthalmology, Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
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29
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Kupikowska-Stobba B, Lewińska D. Polymer microcapsules and microbeads as cell carriers for in vivo biomedical applications. Biomater Sci 2020; 8:1536-1574. [PMID: 32110789 DOI: 10.1039/c9bm01337g] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Polymer microcarriers are being extensively explored as cell delivery vehicles in cell-based therapies and hybrid tissue and organ engineering. Spherical microcarriers are of particular interest due to easy fabrication and injectability. They include microbeads, composed of a porous matrix, and microcapsules, where matrix core is additionally covered with a semipermeable membrane. Microcarriers provide cell containment at implantation site and protect the cells from host immunoresponse, degradation and shear stress. Immobilized cells may be genetically altered to release a specific therapeutic product directly at the target site, eliminating side effects of systemic therapies. Cell microcarriers need to fulfil a number of extremely high standards regarding their biocompatibility, cytocompatibility, immunoisolating capacity, transport, mechanical and chemical properties. To obtain cell microcarriers of specified parameters, a wide variety of polymers, both natural and synthetic, and immobilization methods can be applied. Yet so far, only a few approaches based on cell-laden microcarriers have reached clinical trials. The main issue that still impedes progress of these systems towards clinical application is limited cell survival in vivo. Herein, we review polymer biomaterials and methods used for fabrication of cell microcarriers for in vivo biomedical applications. We describe their key limitations and modifications aiming at improvement of microcarrier in vivo performance. We also present the main applications of polymer cell microcarriers in regenerative medicine, pancreatic islet and hepatocyte transplantation and in the treatment of cancer. Lastly, we outline the main challenges in cell microimmobilization for biomedical purposes, the strategies to overcome these issues and potential future improvements in this area.
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Affiliation(s)
- Barbara Kupikowska-Stobba
- Laboratory of Electrostatic Methods of Bioencapsulation, Department of Biomaterials and Biotechnological Systems, Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4, 02-109 Warsaw, Poland.
| | - Dorota Lewińska
- Laboratory of Electrostatic Methods of Bioencapsulation, Department of Biomaterials and Biotechnological Systems, Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4, 02-109 Warsaw, Poland.
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30
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Ju Y, Guo H, Edman M, Hamm-Alvarez SF. Application of advances in endocytosis and membrane trafficking to drug delivery. Adv Drug Deliv Rev 2020; 157:118-141. [PMID: 32758615 PMCID: PMC7853512 DOI: 10.1016/j.addr.2020.07.026] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 12/12/2022]
Abstract
Multidisciplinary research efforts in the field of drug delivery have led to the development of a variety of drug delivery systems (DDS) designed for site-specific delivery of diagnostic and therapeutic agents. Since efficient uptake of drug carriers into target cells is central to effective drug delivery, a comprehensive understanding of the biological pathways for cellular internalization of DDS can facilitate the development of DDS capable of precise tissue targeting and enhanced therapeutic outcomes. Diverse methods have been applied to study the internalization mechanisms responsible for endocytotic uptake of extracellular materials, which are also the principal pathways exploited by many DDS. Chemical inhibitors remain the most commonly used method to explore endocytotic internalization mechanisms, although genetic methods are increasingly accessible and may constitute more specific approaches. This review highlights the molecular basis of internalization pathways most relevant to internalization of DDS, and the principal methods used to study each route. This review also showcases examples of DDS that are internalized by each route, and reviews the general effects of biophysical properties of DDS on the internalization efficiency. Finally, options for intracellular trafficking and targeting of internalized DDS are briefly reviewed, representing an additional opportunity for multi-level targeting to achieve further specificity and therapeutic efficacy.
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Affiliation(s)
- Yaping Ju
- Department of Pharmacology and Pharmaceutical Sciences, USC School of Pharmacy, USA
| | - Hao Guo
- Department of Pharmacology and Pharmaceutical Sciences, USC School of Pharmacy, USA
| | - Maria Edman
- Department of Ophthalmology, Roski Eye Institute, Keck School of Medicine, University of Southern California, USA
| | - Sarah F Hamm-Alvarez
- Department of Pharmacology and Pharmaceutical Sciences, USC School of Pharmacy, USA; Department of Ophthalmology, Roski Eye Institute, Keck School of Medicine, University of Southern California, USA.
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31
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Taylor PA, Huang H, Kiick KL, Jayaraman A. Placement of Tyrosine Residues as a Design Element for Tuning the Phase Transition of Elastin-peptide-containing Conjugates: Experiments and Simulations. MOLECULAR SYSTEMS DESIGN & ENGINEERING 2020; 5:1239-1254. [PMID: 33796336 PMCID: PMC8009313 DOI: 10.1039/d0me00051e] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Elastin-like polypeptides (ELP) have been widely used in the biomaterials community due to their controllable, thermoresponsive properties and biocompatibility. Motivated by our previous work on the effect of tryptophan (W) substitutions on the LCST-like transitions of short ELPs, we studied a series of short ELPs containing tyrosine (Y) and/or phenylalanine (F) guest residues with only 5 or 6 pentapeptide repeat units. A combination of experiments and molecular dynamics (MD) simulations illustrated that the substitution of F with Y guest residues impacted the transition temperature (Tt) of short ELPs when conjugated to collagen-like-peptides (CLP), with a reduction in the transition temperature observed only after substitution of at least two residues. Placement of the Y residues near the N-terminal end of the ELP, away from the tethering point to the CLP, resulted in a lower Tt than that observed for peptides with the Y residues near the tethering point. Atomistic and coarse-grained MD simulations indicated an increase in intra- and inter- peptide hydrogen bonds in systems containing Y guest residues that are suggested to enhance the ability of the peptides to coacervate, with a concomitantly lower Tt. Simulations also revealed that the placement of Y-containing pentads near the N-terminus (i.e., away from CLP tethering point) versus C-terminus of the ELP led to more π-π stacking interactions at low temperatures, in agreement with our experimental observations of a lower Tt. Overall, this study provides mechanistic insights into the driving forces for the LCST-like transitions of ELPs and offers additional means for tuning the Tt of short ELPs for biomedical applications such as on-demand drug delivery and tissue engineering.
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Affiliation(s)
- Phillip A. Taylor
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716 USA
| | - Haofu Huang
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716 USA
| | - Kristi L. Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716 USA
| | - Arthi Jayaraman
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716 USA
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32
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Li Y, Lin Y, Xin G, Zhou X, Lu H, Zhang X, Xia X, Sun H. Comparative evaluation of ELPylated virus-like particle vaccine with two commercial PCV2 vaccines by experimental challenge. Vaccine 2020; 38:3952-3959. [PMID: 32284270 DOI: 10.1016/j.vaccine.2020.03.060] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/29/2020] [Accepted: 03/31/2020] [Indexed: 01/31/2023]
Abstract
Porcine circovirus type 2 (PCV2) is an economically important swine pathogen and vaccination is the primary tool for the disease control. Previously, we developed a more cost-effective PCV2 virus-like particle (VLP) vaccine by using ELPylation technology. In the present study, we compared the ELPylated VLP (ELP-VLP) PCV2 vaccine efficacy with commercial inactivated Yuanlijia vaccine and VLP-based Circoflex vaccine by experimental challenge. After one dose of vaccination with the three different vaccines, ELP-VLP vaccine group showed significantly (p < 0.05) stronger virus neutralizing antibody and interferon-γ responses than the two commercial vaccine groups. All vaccinated pigs showed significant (p < 0.05) improvement in average daily weight gain (ADWG) before challenge. After challenge with PCV2, however, only ELP-VLP-vaccinated pigs showed significant (p < 0.05) improvement in ADWG. All vaccinated pigs showed significant (p < 0.05) reductions in PCV2 loads in the blood, nasal secretion and lymph nodes, ELP-VLP-vaccinated pigs in particular. In addition, vaccination with ELP-VLP vaccine provided stronger protection against pulmonary and lymphoid pathologies than that with the two commercial vaccines. Therefore, ELP-VLP vaccine is more effective to control PCV2 infection than the two commercial vaccines based on clinical, immunological, virological and pathological evaluations.
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Affiliation(s)
- Yangyang Li
- College of Veterinary Medicine, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Department of Immunology, Zunyi Medical University, Zunyi 563000, China
| | - Yan Lin
- TECH-BANK Biological Products Co., Ltd, Chengdu 610100, China
| | - Gang Xin
- TECH-BANK Biological Products Co., Ltd, Chengdu 610100, China
| | - Xiaohui Zhou
- College of Veterinary Medicine, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Huipeng Lu
- College of Veterinary Medicine, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Xinyu Zhang
- College of Veterinary Medicine, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Xiaoli Xia
- College of Veterinary Medicine, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Huaichang Sun
- College of Veterinary Medicine, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Jiangsu Key Laboratory for High-Tech Research and Development of Veterinary Biopharmaceuticals, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China.
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33
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Duan T, Li H. In Situ Phase Transition of Elastin-Like Polypeptide Chains Regulates Thermoresponsive Properties of Elastomeric Protein-Based Hydrogels. Biomacromolecules 2020; 21:2258-2267. [DOI: 10.1021/acs.biomac.0c00206] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Tianyu Duan
- Department of Chemistry University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Hongbin Li
- Department of Chemistry University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
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34
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Peddi S, Roberts SK, MacKay JA. Nanotoxicology of an Elastin-like Polypeptide Rapamycin Formulation for Breast Cancer. Biomacromolecules 2020; 21:1091-1102. [PMID: 31927993 PMCID: PMC7219203 DOI: 10.1021/acs.biomac.9b01431] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The clinical utility of rapamycin (Rapa) is limited by solubility, bioavailability, and side effects. To overcome this, our team recently reported an elastin-like polypeptide (ELP) nanoparticle with high affinity, noncovalent drug binding, and integrin-mediated cellular uptake. Given the scarcity of pharmacology/toxicology studies of ELP-based drug carriers, this article explores safety and efficacy of ELP-Rapa. ELP-Rapa nanoparticles tested negative for hemolysis, did not interfere in plasma coagulation nor in platelet function, and did not activate the complement. Upon incubation with HepG2 cells, ELP-Rapa revealed significant cellular uptake and trafficking to acidic organelles, consistent with lysosomes. Internalized ELP-Rapa nanoparticles increased oxidative stress 4-fold compared to free drug or free ELP controls. However, mice bearing orthotopic hormone receptor positive BT-474 breast tumors, given a high dose (∼10-fold above therapeutic dose) of 1 month administration of ELP-Rapa, did not induce hepatotoxicity. On the other hand, tumor growth and mTOR signaling were suppressed without affecting body weight. Nanoparticles assembled using ELP technology appear to be a safe and efficient strategy for delivering Rapa.
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Affiliation(s)
- Santosh Peddi
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy at the University of Southern California, Los Angeles, California 90033-9121, United States
| | - S Kenny Roberts
- Eunoia Biotech LLC, Wynnewood, Pennsylvania 19096, United States
| | - John Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy at the University of Southern California, Los Angeles, California 90033-9121, United States
- Department of Biomedical Engineering, Viterbi School of Engineering at the University of Southern California, Los Angeles, California 90089, United States
- Department of Ophthalmology, Keck School of Medicine at the University of Southern California, Los Angeles, California 90089-9020, United States
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35
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Human plasma protein adsorption to elastin-like polypeptide nanoparticles. Biointerphases 2020; 15:021007. [DOI: 10.1116/6.0000027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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36
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Li Z, Sreekumar PG, Peddi S, Hinton DR, Kannan R, MacKay JA. The humanin peptide mediates ELP nanoassembly and protects human retinal pigment epithelial cells from oxidative stress. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2020; 24:102111. [PMID: 31655204 PMCID: PMC7263384 DOI: 10.1016/j.nano.2019.102111] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 09/27/2019] [Accepted: 10/04/2019] [Indexed: 12/16/2022]
Abstract
Humanin (HN) is a hydrophobic 24-amino acid peptide derived from mitochondrial DNA that modulates cellular responses to oxidative stress and protects human retinal pigment epithelium (RPE) cells from apoptosis. To solubilize HN, this report describes two genetically-encoded fusions between HN and elastin-like polypeptides (ELP). ELPs provide steric stabilization and/or thermo-responsive phase separation. Fusions were designed to either remain soluble or phase separate at the physiological temperature of the retina. Interestingly, the soluble fusion assembles stable colloids with a hydrodynamic radius of 39.1 nm at 37°C. As intended, the thermo-responsive fusion forms large coacervates (>1,000 nm) at 37°C. Both fusions bind human RPE cells and protect against oxidative stress-induction of apoptosis (TUNEL, caspase-3 activation). Their activity is mediated through STAT3; furthermore, STAT3 inhibition eliminates their protection. These findings suggest that HN polypeptides may facilitate cellular delivery of biodegradable nanoparticles with potential protection against age-related diseases, including macular degeneration.
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Affiliation(s)
- Zhe Li
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy of the University of Southern California, Los Angeles, CA 90089, USA
| | | | - Santosh Peddi
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy of the University of Southern California, Los Angeles, CA 90089, USA
| | - David R Hinton
- Department Ophthalmology, USC Roski Eye Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA 90033, USA; Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, CA 90033, USA
| | - Ram Kannan
- Doheny Eye Institute, Los Angeles, CA 90033, USA
| | - John Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy of the University of Southern California, Los Angeles, CA 90089, USA; Department Ophthalmology, USC Roski Eye Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA 90033, USA; Department of Biomedical Engineering, Viterbi School of Engineering of the University of Southern California, Los Angeles, CA 90033, USA.
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37
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Sarangthem V, Seo BY, Yi A, Lee YJ, Cheon SH, Kim SK, Singh TD, Lee BH, Park RW. Effects of molecular weight and structural conformation of multivalent-based elastin-like polypeptides on tumor accumulation and tissue biodistribution. Nanotheranostics 2020; 4:57-70. [PMID: 32190533 PMCID: PMC7064738 DOI: 10.7150/ntno.39804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 11/27/2019] [Indexed: 02/06/2023] Open
Abstract
In order to improve clinical outcomes for novel drug delivery systems, distinct optimization of size, shape, multifunctionality, and site-specificity are of utmost importance. In this study, we designed various multivalent elastin-like polypeptide (ELP)-based tumor-targeting polymers in which multiple copies of IL-4 receptor (IL-4R)-targeting ligand (AP1 peptide) were periodically incorporated into the ELP polymer backbone to enhance the affinity and avidity towards tumor cells expressing high levels of IL-4R. Several ELPs with different molecular sizes and structures ranging from unimer to micelle-forming polymers were evaluated for their tumor accumulation as well as in vivo bio-distribution patterns. Different percentages of cell binding and uptake were detected corresponding to polymer size, number of targeting peptides, or unimer versus micelle structure. As compared to low molecular weight polypeptides, high molecular weight AP1-ELP showed superior binding activity with faster entry and efficient processing in the IL-4R-dependent endocytic pathway. In addition, in vivo studies revealed that the high molecular weight micelle-forming AP1-ELPs (A86 and A100) displayed better tumor penetration and extensive retention in tumor tissue along with reduced non-specific accumulation in vital organs, when compared to low molecular weight non-micelle forming AP1-ELPs. It is suggested that the superior binding activities shown by A86 and A100 may depend on the multiple presentation of ligands upon transition to a micelle-like structure rather than a larger molecular weight. Thus, this study has significance in elucidating the different patterns underlying unimer and micelle-forming ELP-mediated tumor targeting as well as the in vivo biodistribution.
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Affiliation(s)
- Vijaya Sarangthem
- Department of Biochemistry and Cell Biology, School of Medicine, and Cell & Matrix Research Institute, Kyungpook National University, Daegu 41944, Republic of Korea.,Department of Pathology, All India Institute of Medical Sciences, New Delhi-110029, India
| | - Bo-Yeon Seo
- Department of Biochemistry and Cell Biology, School of Medicine, and Cell & Matrix Research Institute, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Aena Yi
- Department of Biochemistry and Cell Biology, School of Medicine, and Cell & Matrix Research Institute, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Young-Jin Lee
- Department of Biochemistry and Cell Biology, School of Medicine, and Cell & Matrix Research Institute, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Sun-Ha Cheon
- Department of Biochemistry and Cell Biology, School of Medicine, and Cell & Matrix Research Institute, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Sang Kyoon Kim
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation, Cheombok, Daegu, 41061, Republic of Korea
| | - Thoudam Debraj Singh
- Department of Medical Oncology Lab., All India Institute of Medical Sciences, New Delhi-110029, India
| | - Byung-Heon Lee
- Department of Biochemistry and Cell Biology, School of Medicine, and Cell & Matrix Research Institute, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Rang-Woon Park
- Department of Biochemistry and Cell Biology, School of Medicine, and Cell & Matrix Research Institute, Kyungpook National University, Daegu 41944, Republic of Korea
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Utilizing a Kidney-Targeting Peptide to Improve Renal Deposition of a Pro-Angiogenic Protein Biopolymer. Pharmaceutics 2019; 11:pharmaceutics11100542. [PMID: 31635263 PMCID: PMC6835230 DOI: 10.3390/pharmaceutics11100542] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/12/2019] [Accepted: 10/15/2019] [Indexed: 01/06/2023] Open
Abstract
Elastin-like polypeptides (ELP) are versatile protein biopolymers used in drug delivery due to their modular nature, allowing fusion of therapeutics and targeting agents. We previously developed an ELP fusion with vascular endothelial growth factor (VEGF) and demonstrated its therapeutic efficacy in translational swine models of renovascular disease and chronic kidney disease. The goal of the current work was to refine renal targeting and reduce off-target tissue deposition of ELP–VEGF. The ELP–VEGF fusion protein was modified by adding a kidney-targeting peptide (KTP) to the N-terminus. All control proteins (ELP, KTP–ELP, ELP–VEGF, and KTP–ELP–VEGF) were also produced to thoroughly assess the effects of each domain on in vitro cell binding and activity and in vivo pharmacokinetics and biodistribution. KTP–ELP–VEGF was equipotent to ELP–VEGF and free VEGF in vitro in the stimulation of primary glomerular microvascular endothelial cell proliferation, tube formation, and extracellular matrix invasion. The contribution of each region of the KTP–ELP–VEGF protein to the cell binding specificity was assayed in primary human renal endothelial cells, tubular epithelial cells, and podocytes, demonstrating that the VEGF domain induced binding to endothelial cells and the KTP domain increased binding to all renal cell types. The pharmacokinetics and biodistribution of KTP–ELP–VEGF and all control proteins were determined in SKH-1 Elite hairless mice. The addition of KTP to ELP slowed its in vivo clearance and increased its renal deposition. Furthermore, addition of KTP redirected ELP–VEGF, which was found at high levels in the liver, to the kidney. Intrarenal histology showed similar distribution of all proteins, with high levels in blood vessels and tubules. The VEGF-containing proteins also accumulated in punctate foci in the glomeruli. These studies provide a thorough characterization of the effects of a kidney-targeting peptide and an active cytokine on the biodistribution of these novel biologics. Furthermore, they demonstrate that renal specificity of a proven therapeutic can be improved using a targeting peptide.
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Kouhi A, Yao Z, Zheng L, Li Z, Hu P, Epstein AL, MacKay JA. Generation of a Monoclonal Antibody to Detect Elastin-like Polypeptides. Biomacromolecules 2019; 20:2942-2952. [PMID: 31276401 DOI: 10.1021/acs.biomac.9b00503] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The identification and use of antibodies dominate the biologic, clinical diagnostic, and therapeutic landscapes. In particular, antibodies have become essential tools in a variety of protein analytical experiments and to study the disposition of biologic therapeutics. One emerging class of peptide biologics is known as the elastin-like polypeptides (ELPs), which are repetitive protein polymers inspired by human tropoelastin. A major limitation in the clinical translation of ELP biologics has been a lack of a monoclonal antibody (mAb) to characterize their identity during expression. To facilitate these studies, we successfully generated a new mAb that is specific toward ELPs and ELP fusion proteins. A purified antibody was evaluated in an ELISA, western blotting, and immunofluorescence assay. The optimal anti-ELP mAb proved to be highly reactive and specific toward ELPs. Moreover, they were able to detect ELPs with a variety of aliphatic guest residues. ELPs phase-separate in response to heating; furthermore, when incubated at a great excess of ELPs, the anti-ELP mAb partially blocks phase separation. These findings are direct evidence that novel murine mAbs can be raised against purified ELPs. This new reagent will enable purification, experimental detection, and characterization of these biopolymers.
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40
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Jung SH, Lee JY, Lee SH, Kwon MH, Han ET, Park WS, Hong SH, Kim YM, Ha KS. Preventive Effects of Thermosensitive Biopolymer-Conjugated C-Peptide against High Glucose-Induced Endothelial Cell Dysfunction. Macromol Biosci 2019; 19:e1900129. [PMID: 31310433 DOI: 10.1002/mabi.201900129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 05/31/2019] [Indexed: 11/08/2022]
Abstract
C-peptide has emerged as a potential drug for treating diabetic complications. However, clinical application of C-peptide is limited by its short half-life during circulation and costly synthesis methods. To overcome these limitations, a biocompatible and thermosensitive biopolymer-C-peptide conjugate composed of human C-peptide genetically conjugated at the C-terminus of nine repeats of lysine-containing elastin-like polypeptide (K9-C-peptide) is generated. K9-C-peptide exhibits reversible thermal phase behavior with a transition temperature dependent on polypeptide concentration. Degradation of K9-C-peptide hydrogel depends on the concentration of four cleavage enzymes as well as the reaction time and frequency of treatments with elastase-2. The preventive effect of K9-C-peptide against high glucose-induced human aortic endothelial cell dysfunction is further investigated. K9-C-peptide inhibits high glucose-induced intracellular reactive oxygen species generation, transglutaminase 2 activation, and apoptosis, similar to the inhibitory effects of human C-peptide. Thus, K9-C-peptide is a potential drug depot for the sustained delivery of C-peptide to treat diabetic complications.
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Affiliation(s)
- Se-Hui Jung
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Jee-Yeon Lee
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Seong-Hyeon Lee
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Mi-Hye Kwon
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Eun-Taek Han
- Department of Medical Environmental Biology and Tropical Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Won Sun Park
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Seok-Ho Hong
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Kwon-Soo Ha
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
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41
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Fletcher EE, Yan D, Kosiba AA, Zhou Y, Shi H. Biotechnological applications of elastin-like polypeptides and the inverse transition cycle in the pharmaceutical industry. Protein Expr Purif 2019; 153:114-120. [PMID: 30217600 DOI: 10.1016/j.pep.2018.09.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/07/2018] [Accepted: 09/10/2018] [Indexed: 12/20/2022]
Abstract
Proteins are essential throughout the biological and biomedical sciences and the purification strategies of proteins of interest have advanced over centuries. Elastin-like polypeptides (ELPs) are compound polymers that have recently been highlighted for their sharp and reversible phase transition property when heated above their lower critical solution temperature (LCST). ELPs preserve this behavior when fused to a protein, and as a result providing a simple method to isolate a recombinant ELP fusion protein from cell contaminants by taking the solution through the soluble and insoluble phase of the ELP fusion protein, a technique designated as the inverse transition cycle (ITC). ITC is considered an inexpensive and efficient way of purifying recombinant ELP fusion proteins. In addition, ELPs render recombinant fusion protein more stability and a longer clear time in blood stream, which give ELPs a lot of valuable applications in the biotechnological and pharmaceutical industry. This article reviews the modernizations of ELPs and briefly highlights on the possible use of technologies such as the automatic piston discharge (APD) centrifuges to improve the efficiency of the ITC in the pharmaceutical industry to obtain benefits.
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Affiliation(s)
- Emmanuella E Fletcher
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, 212013, PR China
| | - Dandan Yan
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, 212013, PR China
| | - Anthony A Kosiba
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, 212013, PR China
| | - Yang Zhou
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, 212013, PR China.
| | - Haifeng Shi
- Institute of Life Sciences, Jiangsu University, No. 301 Xuefu Road, Zhenjiang, 212013, PR China.
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42
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Jain A, Singh SK, Arya SK, Kundu SC, Kapoor S. Protein Nanoparticles: Promising Platforms for Drug Delivery Applications. ACS Biomater Sci Eng 2018; 4:3939-3961. [DOI: 10.1021/acsbiomaterials.8b01098] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Annish Jain
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh 160 014, India
| | - Sumit K. Singh
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh 160 014, India
| | - Shailendra K. Arya
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh 160 014, India
| | - Subhas C. Kundu
- 3B’s Research Group, I3Bs − Biomaterials, Biodegradables and Biomimetics, University of Minho, AvePark, 4805-017 Barco, Guimarães, Portugal
| | - Sonia Kapoor
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh 160 014, India
- Amity Institute of Molecular Medicine and Stem Cell Research, Amity University, Noida 201 313, Uttar Pradesh, India
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43
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Peddi S, Pan X, MacKay JA. Intracellular Delivery of Rapamycin From FKBP Elastin-Like Polypeptides Is Consistent With Macropinocytosis. Front Pharmacol 2018; 9:1184. [PMID: 30386244 PMCID: PMC6199897 DOI: 10.3389/fphar.2018.01184] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 09/28/2018] [Indexed: 12/15/2022] Open
Abstract
Rapamycin (Rapa) is a highly potent drug; however, its clinical potential is limited by poor solubility, bioavailability, and cytotoxicity. To improve Rapa delivery, our team has fused the cognate protein receptor for Rapa, FKBP12, to high molecular weight elastin-like polypeptides (ELPs). One construct, FAF, includes an FKBP domain at each termini of an ELP. In a recent report, FAF/Rapa outperformed a family of related carriers with higher tumor accumulation and efficacy. Despite apparent efficacy, an explanation for how FAF carries Rapa into cells has not been elucidated. This manuscript explores the intracellular fate of FAF in MDA-MB-468, a triple negative (ER-/PR-/HER2-) breast cancer line. Based on a lack of displacement by excess unlabeled FAF, no evidence was found for the involvement of a receptor in cell-surface binding. Cellular association showed no dose-dependent saturation at concentrations up to 100 μM, which is consistent with uptake through fluid phase endocytosis. FAF does colocalize with dextran, a marker of fluid phase endocytosis. Upon internalization, both FAF and dextran target low pH intracellular compartments similarly. Despite likely exposure to lysosomal pH and proteolytic activity, intracellular FAF is eliminated from cells with a relatively long half-life of 17.7 and 19.0 h by confocal microscopy and SDS-PAGE respectively. A split luciferase reporter assay demonstrated that FAF delays the cytosolic access of Rapa in comparison to free drug by 30 min. A specific macropinocytosis inhibitor, amiloride, completely inhibits the cytosolic delivery of Rapa from FAF. Each of these results are consistent with macropinocytosis as the mechanism of cellular uptake necessary for the hand-off of Rapa from FKBP-based drug carriers like FAF to endogenous FKBP12 in the cytosol.
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Affiliation(s)
- Santosh Peddi
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy of the University of Southern California, Los Angeles, CA, United States
| | - Xiaoli Pan
- Department of Pharmaceutical Chemistry, School of Pharmacy of the University of Kansas, Lawrence, KS, United States
| | - John Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy of the University of Southern California, Los Angeles, CA, United States.,Department of Biomedical Engineering, Viterbi School of Engineering of the University of Southern California, Los Angeles CA, United States.,Department of Biomedical Engineering, Viterbi School of Engineering of the University of Southern California, Los Angeles CA, United States
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44
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Li Z, Tyrpak DR, Lien CL, MacKay JA. Tunable assembly of protein-microdomains in living vertebrate embryos. ACTA ACUST UNITED AC 2018; 2. [PMID: 31840042 DOI: 10.1002/adbi.201800112] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Subcellular events such as trafficking and signaling are regulated by self-assembled protein complexes inside the cell. The ability to rapidly and reversibly manipulate these protein complexes would likely enhance studies of their mechanisms and their roles in biological function and disease manifestation.[1, 2] This manuscript reports that thermally-responsive elastin-like polypeptides (ELPs) linked to fluorescent proteins can regulate the self-assembly and disassembly of protein microdomains within the individual cells of zebrafish embryos. By exploring a library of fluorescent ELP proteins, this reports demonstrates that ELPs can co-assemble different fluorescent proteins inside of embryos. By tuning ELP length and sequence, fluorescent protein microdomains can be assembled at different temperatures, in varying sizes, or for desired periods of time. For the first time in a multicellular living embryo, these studies demonstrate that temperature-mediated ELP assembly can reversibly manipulate assembly of subcellular protein complexes, which may have applications in the study and manipulation of in vivo biological functions.
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Affiliation(s)
- Zhe Li
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy of the University of Southern California, Los Angeles, CA 90089, USA
| | - David R Tyrpak
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy of the University of Southern California, Los Angeles, CA 90089, USA
| | - Ching-Ling Lien
- The Saban Research Institute,Children's Hospital Los Angeles, Department of Surgery, Biochemistry and Molecular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA Los Angeles, CA 90027, USA
| | - J Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy of the University of Southern California, Los Angeles, CA 90089, USA
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45
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VerHeul R, Sweet C, Thompson DH. Rapid and simple purification of elastin-like polypeptides directly from whole cells and cell lysates by organic solvent extraction. Biomater Sci 2018; 6:863-876. [PMID: 29488993 DOI: 10.1039/c8bm00124c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Elastin-like polypeptides (ELP) are a well-known class of proteins that are being increasingly utilized in a variety of biomedical applications, due to their beneficial physicochemical properties. A unifying feature of ELP is their demonstration of a sequence tunable inverse transition temperature (Tt) that enables purification using a simple, straightforward process called inverse transition cycling (ITC). Despite the utility of ITC, the process is inherently limited to ELP with an experimentally accessible Tt. Since the underlying basis for the ELP Tt is related to its high overall hydrophobicity, we anticipated that ELP would be excellent candidates for purification by organic extraction. We report the first method for rapidly purifying ELP directly from whole E. coli cells or clarified lysates using pure organic solvents and solvent mixtures, followed by aqueous back extraction. Our results show that small ELP and a large ELP-fusion protein can be isolated in high yield from whole cells or cell lysates with greater than 95% purity in less than 30 min and with very low levels of LPS and DNA contamination.
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Affiliation(s)
- Ross VerHeul
- Department of Chemistry, Purdue Center for Cancer Research, Multi-disciplinary Cancer Research Facility, Purdue University, 1203 W State Street, West Lafayette, IN 47907, USA.
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46
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LeSavage BL, Suhar NA, Madl CM, Heilshorn SC. Production of Elastin-like Protein Hydrogels for Encapsulation and Immunostaining of Cells in 3D. J Vis Exp 2018. [PMID: 29863669 DOI: 10.3791/57739] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Two-dimensional (2D) tissue culture techniques have been essential for our understanding of fundamental cell biology. However, traditional 2D tissue culture systems lack a three-dimensional (3D) matrix, resulting in a significant disconnect between results collected in vitro and in vivo. To address this limitation, researchers have engineered 3D hydrogel tissue culture platforms that can mimic the biochemical and biophysical properties of the in vivo cell microenvironment. This research has motivated the need to develop material platforms that support 3D cell encapsulation and downstream biochemical assays. Recombinant protein engineering offers a unique toolset for 3D hydrogel material design and development by allowing for the specific control of protein sequence and therefore, by extension, the potential mechanical and biochemical properties of the resultant matrix. Here, we present a protocol for the expression of recombinantly-derived elastin-like protein (ELP), which can be used to form hydrogels with independently tunable mechanical properties and cell-adhesive ligand concentration. We further present a methodology for cell encapsulation within ELP hydrogels and subsequent immunofluorescent staining of embedded cells for downstream analysis and quantification.
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Affiliation(s)
| | - Nicholas A Suhar
- Department of Materials Science and Engineering, Stanford University
| | | | - Sarah C Heilshorn
- Department of Materials Science and Engineering, Stanford University;
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47
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Zhang W, Song Y, Eldi P, Guo X, Hayball JD, Garg S, Albrecht H. Targeting prostate cancer cells with hybrid elastin-like polypeptide/liposome nanoparticles. Int J Nanomedicine 2018; 13:293-305. [PMID: 29391790 PMCID: PMC5768422 DOI: 10.2147/ijn.s152485] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Prostate cancer cells frequently overexpress the gastrin-releasing peptide receptor, and various strategies have been applied in preclinical settings to target this receptor for the specific delivery of anticancer compounds. Recently, elastin-like polypeptide (ELP)-based self-assembling micelles with tethered GRP on the surface have been suggested to actively target prostate cancer cells. Poorly soluble chemotherapeutics such as docetaxel (DTX) can be loaded into the hydrophobic cores of ELP micelles, but only limited drug retention times have been achieved. Herein, we report the generation of hybrid ELP/liposome nanoparticles which self-assembled rapidly in response to temperature change, encapsulated DTX at high concentrations with slow release, displayed the GRP ligand on the surface, and specifically bound to GRP receptor expressing PC-3 cells as demonstrated by flow cytometry. This novel type of drug nanocarrier was successfully used to reduce cell viability of prostate cancer cells in vitro through the specific delivery of DTX.
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Affiliation(s)
- Wei Zhang
- Centre for Pharmaceutical Innovation and Development, Centre for Drug Discovery and Development, Experimental Therapeutics Laboratory, Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia
| | - Yunmei Song
- Centre for Pharmaceutical Innovation and Development, Centre for Drug Discovery and Development, Experimental Therapeutics Laboratory, Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia
| | - Preethi Eldi
- Centre for Pharmaceutical Innovation and Development, Centre for Drug Discovery and Development, Experimental Therapeutics Laboratory, Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia
| | - Xiuli Guo
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - John D Hayball
- Centre for Pharmaceutical Innovation and Development, Centre for Drug Discovery and Development, Experimental Therapeutics Laboratory, Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia.,Robinson Research Institute and Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Sanjay Garg
- Centre for Pharmaceutical Innovation and Development, Centre for Drug Discovery and Development, Experimental Therapeutics Laboratory, Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia
| | - Hugo Albrecht
- Centre for Pharmaceutical Innovation and Development, Centre for Drug Discovery and Development, Experimental Therapeutics Laboratory, Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, Australia
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48
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Asai D, Kanamoto T, Takenaga M, Nakashima H. In situ depot formation of anti-HIV fusion-inhibitor peptide in recombinant protein polymer hydrogel. Acta Biomater 2017; 64:116-125. [PMID: 29037895 DOI: 10.1016/j.actbio.2017.10.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 10/11/2017] [Accepted: 10/13/2017] [Indexed: 01/04/2023]
Abstract
Most peptide drugs have short half-lives, necessitating frequent injections that may induce skin sensitivity reactions; therefore, versatile prolonged-release delivery platforms are urgently needed. Here, we focused on an oxidatively and thermally responsive recombinant elastin-like polypeptide with periodic cysteine residues (cELP), which can rapidly and reversibly form a disulfide cross-linked network in which peptide can be physically incorporated. As a model for proof of concept, we used enfuvirtide, an antiretroviral fusion-inhibitor peptide approved for treatment of human immunodeficiency virus (HIV) infection. cELP was mixed with enfuvirtide and a small amount of hydrogen peroxide (to promote cross-linking), and the soluble mixture was injected subcutaneously. The oxidative cross-linking generates a network structure, causing the mixture to form a hydrogel in situ that serves as an enfuvirtide depot. We fabricated a series of enfuvirtide-containing hydrogels and examined their stability, enfuvirtide-releasing profile and anti-HIV potency in vitro. Among them, hydrophobic cELP hydrogel provided effective concentrations of enfuvirtide in blood of rats for up to 8 h, and the initial concentration peak was suppressed compared with that after injection of enfuvirtide alone. cELP hydrogels should be readily adaptable as platforms to provide effective depot systems for delivery of other anti-HIV peptides besides enfuvirtide. STATEMENT OF SIGNIFICANCE In this paper, we present an anti-HIV peptide delivery system using oxidatively and thermally responsive polypeptides that contain multiple periodic cysteine residues as an injectable biomaterial capable of in situ self-gelation, and we demonstrate its utility as an injectable depot capable of sustained release of anti-HIV peptides. The novelty of this work stems from the platform employed to provide the depot encapsulating the peptide drugs (without chemical conjugation), which consists of rationally designed, genetically engineered polypeptides that enable the release rate of the peptide drugs to be precisely controlled.
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Affiliation(s)
- Daisuke Asai
- Department of Microbiology, St. Marianna University, School of Medicine, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, Japan.
| | - Taisei Kanamoto
- Department of Microbiology, St. Marianna University, School of Medicine, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, Japan
| | - Mitsuko Takenaga
- Institute of Medical Science, St. Marianna University, School of Medicine, 2-16-1 Sugao, Miyamae, Kawasaki 216-8512, Japan
| | - Hideki Nakashima
- Department of Microbiology, St. Marianna University, School of Medicine, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, Japan
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49
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Dhandhukia JP, Shi P, Peddi S, Li Z, Aluri S, Ju Y, Brill D, Wang W, Janib SM, Lin YA, Liu S, Cui H, MacKay JA. Bifunctional Elastin-like Polypeptide Nanoparticles Bind Rapamycin and Integrins and Suppress Tumor Growth in Vivo. Bioconjug Chem 2017; 28:2715-2728. [PMID: 28937754 DOI: 10.1021/acs.bioconjchem.7b00469] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Recombinant protein-polymer scaffolds such as elastin-like polypeptides (ELPs) offer drug-delivery opportunities including biocompatibility, monodispersity, and multifunctionality. We recently reported that the fusion of FK-506 binding protein 12 (FKBP) to an ELP nanoparticle (FSI) increases rapamycin (Rapa) solubility, suppresses tumor growth in breast cancer xenografts, and reduces side effects observed with free-drug controls. This new report significantly advances this carrier strategy by demonstrating the coassembly of two different ELP diblock copolymers containing drug-loading and tumor-targeting domains. A new ELP nanoparticle (ISR) was synthesized that includes the canonical integrin-targeting ligand (Arg-Gly-Asp, RGD). FSI and ISR mixed in a 1:1 molar ratio coassemble into bifunctional nanoparticles containing both the FKBP domain for Rapa loading and the RGD ligand for integrin binding. Coassembled nanoparticles were evaluated for bifunctionality by performing in vitro cell-binding and drug-retention assays and in vivo MDA-MB-468 breast tumor regression and tumor-accumulation studies. The bifunctional nanoparticle demonstrated superior cell target binding and similar drug retention to FSI; however, it enhanced the formulation potency, such that tumor growth was suppressed at a 3-fold lower dose compared to an untargeted FSI-Rapa control. This data suggests that ELP-mediated scaffolds are useful tools for generating multifunctional nanomedicines with potential activity in cancer.
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Affiliation(s)
- Jugal P Dhandhukia
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy , Los Angeles, California 90089, United States
| | - Pu Shi
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy , Los Angeles, California 90089, United States
| | - Santosh Peddi
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy , Los Angeles, California 90089, United States
| | - Zhe Li
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy , Los Angeles, California 90089, United States
| | - Suhaas Aluri
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy , Los Angeles, California 90089, United States
| | - Yaping Ju
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy , Los Angeles, California 90089, United States
| | - Dab Brill
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy , Los Angeles, California 90089, United States
| | - Wan Wang
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy , Los Angeles, California 90089, United States
| | - Siti M Janib
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy , Los Angeles, California 90089, United States
| | - Yi-An Lin
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University , Baltimore, Maryland 21218, United States
| | | | - Honggang Cui
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University , Baltimore, Maryland 21218, United States
| | - J Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy , Los Angeles, California 90089, United States.,Department of Biomedical Engineering, University of Southern California Viterbi School of Engineering , Los Angeles, California 90089, United States
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Inostroza-Brito KE, Collin EC, Majkowska A, Elsharkawy S, Rice A, Del Río Hernández AE, Xiao X, Rodríguez-Cabello J, Mata A. Cross-linking of a biopolymer-peptide co-assembling system. Acta Biomater 2017; 58:80-89. [PMID: 28528863 DOI: 10.1016/j.actbio.2017.05.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/26/2017] [Accepted: 05/17/2017] [Indexed: 12/14/2022]
Abstract
The ability to guide molecular self-assembly at the nanoscale into complex macroscopic structures could enable the development of functional synthetic materials that exhibit properties of natural tissues such as hierarchy, adaptability, and self-healing. However, the stability and structural integrity of these kinds of materials remains a challenge for many practical applications. We have recently developed a dynamic biopolymer-peptide co-assembly system with the capacity to grow and undergo morphogenesis into complex shapes. Here we explored the potential of different synthetic (succinimidyl carboxymethyl ester, poly (ethylene glycol) ether tetrasuccinimidyl glutarate and glutaraldehyde) and natural (genipin) cross-linking agents to stabilize membranes made from these biopolymer-peptide co-assemblies. We investigated the cross-linking efficiency, resistance to enzymatic degradation, and mechanical properties of the different cross-linked membranes. We also compared their biocompatibility by assessing the metabolic activity and morphology of adipose-derived stem cells (ADSC) cultured on the different membranes. While all cross-linkers successfully stabilized the system under physiological conditions, membranes cross-linked with genipin exhibited better resistance in physiological environments, improved stability under enzymatic degradation, and a higher degree of in vitro cytocompatibility compared to the other cross-linking agents. The results demonstrated that genipin is an attractive candidate to provide functional structural stability to complex self-assembling structures for potential tissue engineering or in vitro model applications. STATEMENT OF SIGNIFICANCE Molecular self-assembly is widely used for the fabrication of complex functional biomaterials to replace and/or repair any tissue or organ in the body. However, maintaining the stability and corresponding functionality of these kinds of materials in physiological conditions remains a challenge. Chemical cross-linking strategies (natural or synthetic) have been used in an effort to improve their structural integrity. Here we investigate key performance parameters of different cross-linking strategies for stabilising self-assembled materials with potential biomedical applications using a novel protein-peptide co-assembling membrane as proof-of-concept. From the different cross-linkers tested, the natural cross-linker genipin exhibited the best performance. This cross-linker successfully enhanced the mechanical properties of the system enabling the maintenance of the structure in physiological conditions without compromising its bioactivity and biocompatibility. Altogether, we provide a systematic characterization of cross-linking alternatives for self-assembling materials focused on biocompatibility and stability and demonstrate that genipin is a promising alternative for the cross-linking of such materials with a wide variety of potential applications such as in tissue engineering and drug delivery.
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Affiliation(s)
- Karla E Inostroza-Brito
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK; School of Engineering & Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - Estelle C Collin
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK; School of Engineering & Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - Anna Majkowska
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK; School of Engineering & Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - Sherif Elsharkawy
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK; School of Engineering & Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - Alistair Rice
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, SW7 2AZ, UK
| | - Armando E Del Río Hernández
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, SW7 2AZ, UK
| | - Xin Xiao
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK
| | | | - Alvaro Mata
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK; School of Engineering & Materials Science, Queen Mary University of London, London E1 4NS, UK.
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