1
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Robang A, Wong KM, Leisen J, Liu R, Radford WL, Rao Sudarshan T, Hudalla GA, Paravastu AK. Parallel β-Sheet Structure and Structural Heterogeneity Detected within Q11 Self-Assembling Peptide Nanofibers. J Phys Chem B 2024; 128:5387-5396. [PMID: 38787393 PMCID: PMC11163420 DOI: 10.1021/acs.jpcb.4c00825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/26/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024]
Abstract
Q11 peptide nanofibers are used as a biomaterial for applications such as antigen presentation and tissue engineering, yet detailed knowledge of molecular-level structure has not been reported. The Q11 peptide sequence was designed using heuristics-based patterning of hydrophobic and polar amino acids with oppositely charged amino acids placed at opposite ends of the sequence to promote antiparallel β-sheet formation. In this work, we employed solid-state nuclear magnetic resonance spectroscopy (NMR) to evaluate whether the molecular organization within Q11 self-assembled peptide nanofibers is consistent with the expectations of the peptide designers. We discovered that Q11 forms a distribution of molecular structures. NMR data from two-dimensional (2D) 13C-13C dipolar-assisted rotational resonance indicate that the K3 and E9 residues between Q11 β-strands are spatially proximate (within ∼0.6 nm). Frequency-selective rotational echo double resonance (fsREDOR) on K3 Nζ and E9 Cδ-labeled sites showed that approximately 9% of the sites are close enough for salt bridge formation to occur. Surprisingly, dipolar recoupling measurements revealed that Q11 peptides do not assemble into antiparallel β-sheets as expected, and structural analysis using Fourier-transform infrared spectroscopy and 2D NMR alone can be misleading. 13C PITHIRDS-CT dipolar recoupling measurements showed that the most abundant structure consists of parallel β-sheets, in contrast to the expected antiparallel β-sheet structure. Structural heterogeneity was detected from 15N{13C} REDOR measurements, with approximately 22% of β-strands having antiparallel nearest neighbors. We cannot propose a complete structural model of Q11 nanofibers because of the complexity involved when examining structurally heterogeneous samples using NMR. Altogether, our results show that while heuristics-based patterning is effective in promoting β-sheet formation, designing a peptide sequence to form a targeted β-strand arrangement remains challenging.
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Affiliation(s)
- Alicia
S. Robang
- School
of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Kong M. Wong
- School
of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Johannes Leisen
- School
of Chemistry & Biochemistry, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Renjie Liu
- J. Crayton
Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Walker L. Radford
- School
of Chemistry & Biochemistry, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Tarunya Rao Sudarshan
- School
of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Gregory A. Hudalla
- J. Crayton
Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Anant K. Paravastu
- School
of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Parker
H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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2
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Wang B, Liu S, Li H, Dong W, Liu H, Zhang J, Tian C, Dong S. Facile Preparation of Carbohydrate-Containing Adjuvants Based on Self-Assembling Glycopeptide Conjugates. Angew Chem Int Ed Engl 2024; 63:e202309140. [PMID: 37950683 DOI: 10.1002/anie.202309140] [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: 06/28/2023] [Revised: 11/06/2023] [Accepted: 11/10/2023] [Indexed: 11/13/2023]
Abstract
Carbohydrates are intriguing biomolecules possessing diverse biological activities, including immune stimulating capability. However, their biomedical applications have been limited by their complex and heterogeneous structures. In this study, we have utilized a self-assembling glycopeptide conjugate (GPC) system to produce uniform nanoribbons appending homogeneous oligosaccharides with multivalency. This system successfully translates the nontrivial structural differences of oligomannoses into varied binding affinities to C-type lectin receptors (CLRs). We have shown that GPCs could promote the CLR-mediated endocytosis of ovalbumin (OVA) antigen, and two mannotriose-modified peptides F3m2 and F3m5 exhibit potent activity in inducing antigen-presenting cell maturation, as indicated by increased CD86 and MHCII expression. In vivo studies demonstrated that GPCs, combined with OVA antigen, significantly enhanced OVA-specific antibody production. Specifically, F3m2 and F3m5 exhibited the highest immunostimulatory effects, eliciting both Th1- and Th2-biased immune responses and promoting differentiation of CD4+ and CD8+ T cells. These findings highlight the potential of GPCs as vaccine adjuvants, and showcase their versatility in exploiting the biological functions of carbohydrates.
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Affiliation(s)
- Biao Wang
- State Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology Center, and School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Sijin Liu
- State Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology Center, and School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Haoting Li
- State Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology Center, and School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Weidong Dong
- State Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology Center, and School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Haiyun Liu
- State Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology Center, and School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Jun Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology Center, and School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Chao Tian
- State Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology Center, and School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Suwei Dong
- State Key Laboratory of Natural and Biomimetic Drugs, Chemical Biology Center, and School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
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3
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Liu R, Dong X, Seroski DT, Soto Morales B, Wong KM, Robang AS, Melgar L, Angelini TE, Paravastu AK, Hall CK, Hudalla GA. Side-Chain Chemistry Governs Hierarchical Order of Charge-Complementary β-sheet Peptide Coassemblies. Angew Chem Int Ed Engl 2023; 62:e202314531. [PMID: 37931093 PMCID: PMC10841972 DOI: 10.1002/anie.202314531] [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: 09/27/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 11/08/2023]
Abstract
Self-assembly of proteinaceous biomolecules into functional materials with ordered structures that span length scales is common in nature yet remains a challenge with designer peptides under ambient conditions. This report demonstrates how charged side-chain chemistry affects the hierarchical co-assembly of a family of charge-complementary β-sheet-forming peptide pairs known as CATCH(X+/Y-) at physiologic pH and ionic strength in water. In a concentration-dependent manner, the CATCH(6K+) (Ac-KQKFKFKFKQK-Am) and CATCH(6D-) (Ac-DQDFDFDFDQD-Am) pair formed either β-sheet-rich microspheres or β-sheet-rich gels with a micron-scale plate-like morphology, which were not observed with other CATCH(X+/Y-) pairs. This hierarchical order was disrupted by replacing D with E, which increased fibril twisting. Replacing K with R, or mutating the N- and C-terminal amino acids in CATCH(6K+) and CATCH(6D-) to Qs, increased observed co-assembly kinetics, which also disrupted hierarchical order. Due to the ambient assembly conditions, active CATCH(6K+)-green fluorescent protein fusions could be incorporated into the β-sheet plates and microspheres formed by the CATCH(6K+/6D-) pair, demonstrating the potential to endow functionality.
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Affiliation(s)
- Renjie Liu
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL-32611, USA
| | - Xin Dong
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC-27695, USA
| | - Dillon T Seroski
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL-32611, USA
| | - Bethsymarie Soto Morales
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL-32611, USA
| | - Kong M Wong
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA-30332, USA
| | - Alicia S Robang
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA-30332, USA
| | - Lucas Melgar
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL-32611, USA
| | - Thomas E Angelini
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL-32611, USA
| | - Anant K Paravastu
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA-30332, USA
| | - Carol K Hall
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC-27695, USA
| | - Gregory A Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL-32611, USA
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4
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Müllerová M, Hovorková M, Závodná T, Červenková Št́astná L, Krupková A, Hamala V, Nováková K, Topinka J, Bojarová P, Strašák T. Lactose-Functionalized Carbosilane Glycodendrimers Are Highly Potent Multivalent Ligands for Galectin-9 Binding: Increased Glycan Affinity to Galectins Correlates with Aggregation Behavior. Biomacromolecules 2023; 24:4705-4717. [PMID: 37680126 PMCID: PMC10646984 DOI: 10.1021/acs.biomac.3c00426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/25/2023] [Indexed: 09/09/2023]
Abstract
Galectins, the glycan binding proteins, and their respective carbohydrate ligands represent a unique fundamental regulatory network modulating a plethora of biological processes. The advances in galectin-targeted therapy must be based on a deep understanding of the mechanism of ligand-protein recognition. Carbosilane dendrimers, the well-defined and finely tunable nanoscaffolds with low toxicity, are promising for multivalent carbohydrate ligand presentation to target galectin receptors. The study discloses a synthetic method for two types of lactose-functionalized carbosilane glycodendrimers (Lac-CS-DDMs). Furthermore, we report their outstanding, dendritic effect-driven affinity to tandem-type galectins, especially Gal-9. In the enzyme-linked immunosorbent assay, the affinity of the third-generation multivalent dendritic ligand bearing 32 lactose units to Gal-9 reached nanomolar values (IC50 = 970 nM), being a 1400-fold more effective inhibitor than monovalent lactose for this protein. This demonstrates a game-changing impact of multivalent presentation on the inhibitory effect of a ligand as simple as lactose. Moreover, using DLS hydrodynamic diameter measurements, we correlated the increased affinity of the glycodendrimer ligands to Gal-3 and Gal-8 but especially to Gal-9 with the formation of relatively uniform and stable galectin/Lac-CS-DDM aggregates.
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Affiliation(s)
- Monika Müllerová
- Institute
of Chemical Process Fundamentals, Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech Republic
| | - Michaela Hovorková
- Institute
of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czech Republic
- Department
of Genetics and Microbiology, Faculty of Science, Charles University, Viničná 5, 128 43 Prague 2, Czech Republic
| | - Táňa Závodná
- Institute
of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czech Republic
| | - Lucie Červenková Št́astná
- Institute
of Chemical Process Fundamentals, Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech Republic
| | - Alena Krupková
- Institute
of Chemical Process Fundamentals, Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech Republic
| | - Vojtěch Hamala
- Institute
of Chemical Process Fundamentals, Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech Republic
| | - Kateřina Nováková
- Institute
of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 166 10 Prague, Czech Republic
| | - Jan Topinka
- Institute
of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czech Republic
| | - Pavla Bojarová
- Institute
of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czech Republic
| | - Tomáš Strašák
- Institute
of Chemical Process Fundamentals, Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech Republic
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5
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Castro VIB, Araújo AR, Duarte F, Sousa-Franco A, Reis RL, Pashkuleva I, Pires RA. Glycopeptide-Based Supramolecular Hydrogels Induce Differentiation of Adipose Stem Cells into Neural Lineages. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37327399 DOI: 10.1021/acsami.3c05309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
We applied a bottom-up approach to develop biofunctional supramolecular hydrogels from an aromatic glycodipeptide. The self-assembly of the glycopeptide was induced by either temperature manipulation (heating-cooling cycle) or solvent (DMSO to water) switch. The sol-gel transition was salt-triggered in cell culture media and resulted in gels with the same chemical compositions but different mechanical properties. Human adipose derived stem cells (hASCs) cultured on these gels under basal conditions (i.e., without differentiation factors) overexpressed neural markers, such as GFAP, Nestin, MAP2, and βIII-tubulin, confirming the differentiation into neural lineages. The mechanical properties of the gels influenced the number and distribution of the adhered cells. A comparison with gels obtained from the nonglycosylated peptide showed that glycosylation is crucial for the biofunctionality of the hydrogels by capturing and preserving essential growth factors, e.g., FGF-2.
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Affiliation(s)
- Vânia I B Castro
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Guimarães, Portugal
- ICVS/3B's─PT Government Associated Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Ana R Araújo
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Guimarães, Portugal
- ICVS/3B's─PT Government Associated Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Filipa Duarte
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Guimarães, Portugal
- ICVS/3B's─PT Government Associated Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - António Sousa-Franco
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Guimarães, Portugal
- ICVS/3B's─PT Government Associated Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Guimarães, Portugal
- ICVS/3B's─PT Government Associated Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Iva Pashkuleva
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Guimarães, Portugal
- ICVS/3B's─PT Government Associated Laboratory, 4805-017 Braga/Guimarães, Portugal
| | - Ricardo A Pires
- 3B's Research Group, I3Bs─Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, 4805-017 Guimarães, Portugal
- ICVS/3B's─PT Government Associated Laboratory, 4805-017 Braga/Guimarães, Portugal
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6
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Sharma P, Roy S. Designing ECM-inspired supramolecular scaffolds by utilizing the interactions between a minimalistic neuroactive peptide and heparin. NANOSCALE 2023; 15:7537-7558. [PMID: 37022122 DOI: 10.1039/d2nr06221f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Short bioactive peptide-based supramolecular hydrogels are emerging as interesting candidates for developing scaffolds for tissue engineering applications. However, proteins and peptides represent only a single class of molecules present in the native ECM, thus, recapitulating the complete ECM microenvironment via only peptide-based biomaterials is extremely challenging. In this direction, complex multicomponent-based biomaterials have started gaining importance for achieving the biofunctional complexity and structural hierarchy of the native ECM. Sugar-peptide complexes can be explored in this direction as they provide essential biological signaling required for cellular growth and survival in vivo. In this direction, we explored the fabrication of an advanced scaffold by employing heparin and short bioactive peptide interactions at the molecular level. Interestingly, the addition of heparin into the peptide has significantly modulated the supramolecular organization, nanofibrous morphology and the mechanical properties of the scaffold. Additionally, the combined hydrogels demonstrated superior biocompatibility as compared to the peptide counterpart at certain ratios. These newly developed scaffolds were also observed to be stable under 3-D cell culture conditions and supported cellular adhesion and proliferation. Most importantly, the inflammatory response was also minimized in the case of combined hydrogels as compared to heparin. We expect that this approach of using simple non-covalent interactions between the ECM-inspired small molecules to fabricate biomaterials with improved mechanical and biological properties could advance the current knowledge on designing ECM mimetic biomaterials. Such an attempt would create a novel, adaptable and simplistic bottom-up strategy for the invention of new and more complex biomaterials of ECM origin with advanced functions.
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Affiliation(s)
- Pooja Sharma
- Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Punjab, Pin - 140306, India.
| | - Sangita Roy
- Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Punjab, Pin - 140306, India.
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7
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Pritzlaff A, Ferré G, Dargassies E, Williams CO, Gonzalez DD, Eddy MT. Conserved Protein-Polymer Interactions across Structurally Diverse Polymers Underlie Alterations to Protein Thermal Unfolding. ACS CENTRAL SCIENCE 2023; 9:685-695. [PMID: 37122463 PMCID: PMC10146661 DOI: 10.1021/acscentsci.2c01522] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Indexed: 05/03/2023]
Abstract
Protein-polymer conjugates are widely used in many clinical and industrial applications, but lack of experimental data relating protein-polymer interactions to improved protein stability prevents their rational design. Advances in synthetic chemistry have expanded the palette of polymer designs, including development of nonlinear architectures, novel monomer chemical scaffolds, and control of hydrophobicity, but more experimental data are needed to transform advances in chemistry into next generation conjugates. Using an integrative biophysical approach, we investigated the molecular basis for polymer-based thermal stabilization of a human galectin protein, Gal3C, conjugated with polymers of linear and nonlinear architectures, different degrees of polymerization, and varying hydrophobicities. Independently varying the degree of polymerization and polymer architecture enabled delineation of specific polymer properties contributing to improved protein stability. Insights from NMR spectroscopy of the polymer-conjugated Gal3C backbone revealed patterns of protein-polymer interactions shared between linear and nonlinear polymer architectures for thermally stabilized conjugates. Despite large differences in polymer chemical scaffolds, protein-polymer interactions resulting in thermal stabilization appear conserved. We observed a clear relation between polymer length and protein-polymer thermal stability shared among chemically different polymers. Our data indicate a wide range of polymers may be useful for engineering conjugate properties and provide conjugate design criteria.
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8
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Sedighi M, Mahmoudi Z, Ghasempour A, Shakibaie M, Ghasemi F, Akbari M, Abbaszadeh S, Mostafavi E, Santos HA, Shahbazi MA. Nanostructured multifunctional stimuli-responsive glycopolypeptide-based copolymers for biomedical applications. J Control Release 2023; 354:128-145. [PMID: 36599396 DOI: 10.1016/j.jconrel.2022.12.058] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 12/22/2022] [Accepted: 12/28/2022] [Indexed: 01/06/2023]
Abstract
Inspired by natural resources, such as peptides and carbohydrates, glycopolypeptide biopolymer has recently emerged as a new form of biopolymer being recruited in various biomedical applications. Glycopolypeptides with well-defined secondary structures and pendant glycosides on the polypeptide backbone have sparked lots of research interest and they have an innate ability to self-assemble in diverse structures. The nanostructures of glycopolypeptides have also opened up new perspectives in biomedical applications due to their stable three-dimensional structures, high drug loading efficiency, excellent biocompatibility, and biodegradability. Although the development of glycopolypeptide-based nanocarriers is well-studied, their clinical translation is still limited. The present review highlights the preparation and characterization strategies related to glycopolypeptides-based copolymers, followed by a comprehensive discussion on their biomedical applications with a specific focus on drug delivery by various stimuli-responsive (e.g., pH, redox, conduction, and sugar) nanostructures, as well as their beneficial usage in diagnosis and regenerative medicine.
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Affiliation(s)
- Mahsa Sedighi
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Birjand University of Medical Sciences, Birjand, Iran; Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Zahra Mahmoudi
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Alireza Ghasempour
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
| | - Mehdi Shakibaie
- Department of Pharmaceutics and Nanotechnology, School of Pharmacy, Birjand University of Medical Sciences, Birjand, Iran; Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Fahimeh Ghasemi
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran; Department of Medical Biotechnology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mahsa Akbari
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Zanjan University of Medical Sciences, 45139-56184 Zanjan, Iran
| | - Samin Abbaszadeh
- Department of Pharmacology, School of Medicine, Zanjan University of Medical Sciences, 45139-56111 Zanjan, Iran
| | - Ebrahim Mostafavi
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA.
| | - Hélder A Santos
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, Netherlands; W.J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, the Netherlands; Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, 00014 Helsinki, Finland.
| | - Mohammad-Ali Shahbazi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, Netherlands; W.J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, the Netherlands.
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9
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Hovorková M, Červený J, Bumba L, Pelantová H, Cvačka J, Křen V, Renaudet O, Goyard D, Bojarová P. Advanced high-affinity glycoconjugate ligands of galectins. Bioorg Chem 2023; 131:106279. [PMID: 36446202 DOI: 10.1016/j.bioorg.2022.106279] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 11/04/2022] [Accepted: 11/12/2022] [Indexed: 11/20/2022]
Abstract
Galectins are proteins of the family of human lectins. By binding terminal galactose units of cell surface glycans, they moderate biological and pathological processes such as cell signaling, cell adhesion, apoptosis, fibrosis, carcinogenesis, and metabolic disorders. The binding of monovalent glycans to galectins is usually relatively weak. Therefore, the presentation of carbohydrate ligands on multivalent scaffolds can efficiently increase and/or discriminate the affinity of the glycoconjugate to different galectins. A library of glycoclusters and glycodendrimers with various structural presentations of the common functionalized N-acetyllactosamine ligand was prepared to evaluate how the mode of presentation affects the affinity and selectivity to the two most abundant galectins, galectin-1 (Gal-1) and galectin-3 (Gal-3). In addition, the effect of a one- to two-unit carbohydrate spacer on the affinity of the glycoconjugates was determined. A new design of the biolayer interferometry (BLI) method with specific AVI-tagged constructs was used to determine the affinity to galectins, and compared with the gold-standard method of isothermal titration calorimetry (ITC). This study reveals new routes to low nanomolar glycoconjugate inhibitors of galectins of interest for biomedical research.
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Affiliation(s)
- Michaela Hovorková
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, CZ-14220 Prague 4, Czech Republic; Department of Genetics and Microbiology, Faculty of Science, Charles University, Viničná 5, CZ-12843 Prague 2, Czech Republic
| | - Jakub Červený
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, CZ-14220 Prague 4, Czech Republic; Department of Analytical Chemistry, Faculty of Science, Charles University, Hlavova 8, CZ-12843 Prague 2, Czech Republic
| | - Ladislav Bumba
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, CZ-14220 Prague 4, Czech Republic
| | - Helena Pelantová
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, CZ-14220 Prague 4, Czech Republic
| | - Josef Cvačka
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám, 2, CZ-166 10 Prague 6, Czech Republic
| | - Vladimír Křen
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, CZ-14220 Prague 4, Czech Republic
| | - Olivier Renaudet
- Department of Molecular Chemistry, University Grenoble-Alpes, 621, Avenue Centrale, F-38400 Saint Martin-d'Hères, France
| | - David Goyard
- Department of Molecular Chemistry, University Grenoble-Alpes, 621, Avenue Centrale, F-38400 Saint Martin-d'Hères, France.
| | - Pavla Bojarová
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, CZ-14220 Prague 4, Czech Republic; Department of Health Care Disciplines and Population Protection, Faculty of Biomedical Engineering, Czech Technical University in Prague, nám. Sítná 3105, CZ-272 01 Kladno, Czech Republic.
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10
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Martínez-Bailén M, Rojo J, Ramos-Soriano J. Multivalent glycosystems for human lectins. Chem Soc Rev 2023; 52:536-572. [PMID: 36545903 DOI: 10.1039/d2cs00736c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Human lectins are involved in a wide variety of biological processes, both physiological and pathological, which have attracted the interest of the scientific community working in the glycoscience field. Multivalent glycosystems have been employed as useful tools to understand carbohydrate-lectin binding processes as well as for biomedical applications. The review shows the different scaffolds designed for a multivalent presentation of sugars and their corresponding binding studies to lectins and in some cases, their biological activities. We summarise this research by organizing based on lectin types to highlight the progression in this active field. The paper provides an overall picture of how these contributions have furnished relevant information on this topic to help in understanding and participate in these carbohydrate-lectin interactions.
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Affiliation(s)
- Macarena Martínez-Bailén
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Av. Américo Vespucio 49, Seville 41092, Spain.
| | - Javier Rojo
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Av. Américo Vespucio 49, Seville 41092, Spain.
| | - Javier Ramos-Soriano
- Glycosystems Laboratory, Instituto de Investigaciones Químicas (IIQ), CSIC - Universidad de Sevilla, Av. Américo Vespucio 49, Seville 41092, Spain.
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11
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Pritzlaff A, Ferré G, Mulry E, Lin L, Pour NG, Savin DA, Harris M, Eddy MT. Atomic-Scale View of Protein-PEG Interactions that Redirect the Thermal Unfolding Pathway of PEGylated Human Galectin-3. Angew Chem Int Ed Engl 2022; 61:e202203784. [PMID: 35922375 PMCID: PMC9529833 DOI: 10.1002/anie.202203784] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Indexed: 07/28/2023]
Abstract
PEGylation is a promising approach to address the central challenge of applying biologics, i.e., lack of protein stability in the demanding environment of the human body. Wider application is hindered by lack of atomic level understanding of protein-PEG interactions, preventing design of conjugates with predicted properties. We deployed an integrative structural and biophysical approach to address this critical challenge with the PEGylated carbohydrate recognition domain of human galectin-3 (Gal3C), a lectin essential for cell adhesion and potential biologic. PEGylation dramatically increased Gal3C thermal stability, forming a stable intermediate and redirecting its unfolding pathway. Structural details revealed by NMR pointed to a potential role of PEG localization facilitated by charged residues. Replacing these residues subtly altered the protein-PEG interface and thermal unfolding behavior, providing insight into rationally designing conjugates while preserving PEGylation benefits.
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Affiliation(s)
- Amanda Pritzlaff
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Guillaume Ferré
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Emma Mulry
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Ling Lin
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | | | - Daniel A. Savin
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Michael Harris
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Matthew T. Eddy
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
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12
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Pritzlaff A, Ferré G, Mulry E, Lin L, Pour NG, Eddy M, Savin DA, Harris M. Atomic‐Scale View of Protein–PEG Interactions that Redirect the Thermal Unfolding Pathway of PEGylated Human Galectin‐3. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | - Emma Mulry
- University of Florida Department of Chemistry UNITED STATES
| | - Ling Lin
- University of Florida Department of Chemistry UNITED STATES
| | | | - Matthew Eddy
- University of Florida Chemistry 126 Sisler Hall 32611 Gainesville UNITED STATES
| | | | - Michael Harris
- University of Florida Department of Chemistry UNITED STATES
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13
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Martin-Saldaña S, Chevalier MT, Pandit A. Therapeutic potential of targeting galectins – A biomaterials-focused perspective. Biomaterials 2022; 286:121585. [DOI: 10.1016/j.biomaterials.2022.121585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 05/12/2022] [Accepted: 05/15/2022] [Indexed: 12/16/2022]
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14
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Heine V, Dey C, Bojarová P, Křen V, Elling L. Methods of in vitro study of galectin-glycomaterial interaction. Biotechnol Adv 2022; 58:107928. [DOI: 10.1016/j.biotechadv.2022.107928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 02/07/2022] [Accepted: 02/14/2022] [Indexed: 02/08/2023]
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15
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16
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McKitrick TR, Ackerman ME, Anthony RM, Bennett CS, Demetriou M, Hudalla GA, Ribbeck K, Ruhl S, Woo CM, Yang L, Zost SJ, Schnaar RL, Doering TL. The Crossroads of Glycoscience, Infection, and Immunology. Front Microbiol 2021; 12:731008. [PMID: 34646251 PMCID: PMC8504252 DOI: 10.3389/fmicb.2021.731008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/12/2021] [Indexed: 01/21/2023] Open
Abstract
Advances in experimental capabilities in the glycosciences offer expanding opportunities for discovery in the broad areas of immunology and microbiology. These two disciplines overlap when microbial infection stimulates host immune responses and glycan structures are central in the processes that occur during all such encounters. Microbial glycans mediate host-pathogen interactions by acting as surface receptors or ligands, functioning as virulence factors, impeding host immune responses, or playing other roles in the struggle between host and microbe. In the context of the host, glycosylation drives cell–cell interactions that initiate and regulate the host response and modulates the effects of antibodies and soluble immune mediators. This perspective reports on a workshop organized jointly by the National Institute of Allergy and Infectious Diseases and the National Institute of Dental and Craniofacial Research in May 2020. The conference addressed the use of emerging glycoscience tools and resources to advance investigation of glycans and their roles in microbe-host interactions, immune-mediated diseases, and immune cell recognition and function. Future discoveries in these areas will increase fundamental scientific understanding and have the potential to improve diagnosis and treatment of infections and immune dysregulation.
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Affiliation(s)
- Tanya R McKitrick
- National Center for Functional Glycomics, Harvard Medical School, Boston, MA, United States
| | | | - Robert M Anthony
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Clay S Bennett
- Department of Chemistry, Tufts University, Medford, MA, United States
| | - Michael Demetriou
- Department of Neurology, Microbiology, and Molecular Genetics, University of California, Irvine, Irvine, CA, United States
| | - Gregory A Hudalla
- J Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, United States
| | - Katharina Ribbeck
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Stefan Ruhl
- Department of Oral Biology, University at Buffalo School of Dental Medicine, Buffalo, NY, United States
| | - Christina M Woo
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, United States
| | | | - Seth J Zost
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Ronald L Schnaar
- Department of Pharmacology, Johns Hopkins University, Baltimore, MD, United States
| | - Tamara L Doering
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, United States
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17
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Su L, Feng Y, Wei K, Xu X, Liu R, Chen G. Carbohydrate-Based Macromolecular Biomaterials. Chem Rev 2021; 121:10950-11029. [PMID: 34338501 DOI: 10.1021/acs.chemrev.0c01338] [Citation(s) in RCA: 98] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Carbohydrates are the most abundant and one of the most important biomacromolecules in Nature. Except for energy-related compounds, carbohydrates can be roughly divided into two categories: Carbohydrates as matter and carbohydrates as information. As matter, carbohydrates are abundantly present in the extracellular matrix of animals and cell walls of various plants, bacteria, fungi, etc., serving as scaffolds. Some commonly found polysaccharides are featured as biocompatible materials with controllable rigidity and functionality, forming polymeric biomaterials which are widely used in drug delivery, tissue engineering, etc. As information, carbohydrates are usually referred to the glycans from glycoproteins, glycolipids, and proteoglycans, which bind to proteins or other carbohydrates, thereby meditating the cell-cell and cell-matrix interactions. These glycans could be simplified as synthetic glycopolymers, glycolipids, and glycoproteins, which could be afforded through polymerization, multistep synthesis, or a semisynthetic strategy. The information role of carbohydrates can be demonstrated not only as targeting reagents but also as immune antigens and adjuvants. The latter are also included in this review as they are always in a macromolecular formulation. In this review, we intend to provide a relatively comprehensive summary of carbohydrate-based macromolecular biomaterials since 2010 while emphasizing the fundamental understanding to guide the rational design of biomaterials. Carbohydrate-based macromolecules on the basis of their resources and chemical structures will be discussed, including naturally occurring polysaccharides, naturally derived synthetic polysaccharides, glycopolymers/glycodendrimers, supramolecular glycopolymers, and synthetic glycolipids/glycoproteins. Multiscale structure-function relationships in several major application areas, including delivery systems, tissue engineering, and immunology, will be detailed. We hope this review will provide valuable information for the development of carbohydrate-based macromolecular biomaterials and build a bridge between the carbohydrates as matter and the carbohydrates as information to promote new biomaterial design in the near future.
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Affiliation(s)
- Lu Su
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China.,Institute for Complex Molecular Systems, Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, Eindhoven 5600, The Netherlands
| | - Yingle Feng
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China.,Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, P. R. China
| | - Kongchang Wei
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Department of Materials meet Life, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, St. Gallen 9014, Switzerland
| | - Xuyang Xu
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Rongying Liu
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Guosong Chen
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China.,Multiscale Research Institute of Complex Systems, Fudan University, Shanghai 200433, China
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18
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Zuo R, Liu R, Olguin J, Hudalla GA. Glycosylation of a Nonfibrillizing Appendage Alters the Self-Assembly Pathway of a Synthetic β-Sheet Fibrillizing Peptide. J Phys Chem B 2021; 125:6559-6571. [PMID: 34128680 DOI: 10.1021/acs.jpcb.1c02083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Owing to their biocompatibility and biodegradability, short synthetic peptides that self-assemble into elongated β-sheet fibers (i.e., peptide nanofibers) are widely used to create biomaterials for diverse medical and biotechnology applications. Glycosylation, which is a common protein post-translational modification, is gaining interest for creating peptide nanofibers that can mimic the function of natural carbohydrate-modified proteins. Recent reports have shown that glycosylation can disrupt the fibrillization of natural amyloid-forming peptides. Here, using transmission electron microscopy, fluorescence microscopy, and thioflavin T spectroscopy, we show that glycosylation at a site external to the fibrillization domain can alter the self-assembly pathway of a synthetic fibrillizing peptide, NSGSGQQKFQFQFEQQ (NQ11). Specifically, an NQ11 variant modified with N-linked N-acetylglucosamine, N(GlcNAc)SGSG-Q11 (GQ11), formed β-sheet nanofibers more slowly than NQ11 in deionized water (pH 5.8), which correlated to the tendency of GQ11 to form a combination of short fibrils and nonfibrillar aggregates, whereas NQ11 formed extended nanofibers. Acidic phosphate buffer slowed the rate of GQ11 fibrillization and altered the morphology of the structures formed yet had no effect on NQ11 fibrillization rate or morphology. The buffer ionic strength had no effect on the fibrillization rate of either peptide, while the diphosphate anion had a similar effect on the rate of fibrillization of both peptides. Collectively, these data demonstrate that a glycan moiety located external to the β-sheet fibrillizing domain can alter the pH-dependent self-assembly pathway of a synthetic peptide, leading to significant changes in the fibril mass and morphology of the structures formed. These observations add to the understanding of the effect of glycosylation on peptide self-assembly and should guide future efforts to develop biomaterials from synthetic β-sheet fibrillizing glycopeptides.
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Affiliation(s)
- Ran Zuo
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Renjie Liu
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Juanpablo Olguin
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Gregory A Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
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19
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Abstract
Galectin-3 (Gal3) exhibits dynamic oligomerization and promiscuous binding, which can lead to concomitant activation of synergistic, antagonistic, or noncooperative signaling pathways that alter cell behavior. Conferring signaling pathway selectivity through mutations in the Gal3-glycan binding interface is challenged by the abundance of common carbohydrate types found on many membrane glycoproteins. Here, employing alpha-helical coiled-coils as scaffolds to create synthetic Gal3 constructs with defined valency, we demonstrate that oligomerization can physically regulate extracellular signaling activity of Gal3. Constructs with 2 to 6 Gal3 subunits ("Dimer," "Trimer," "Tetramer," "Pentamer," "Hexamer") demonstrated glycan-binding properties and cell death-inducing potency that scaled with valency. Dimer was the minimum functional valency. Unlike wild-type Gal3, which signals apoptosis and mediates agglutination, synthetic Gal3 constructs induced cell death without agglutination. In the presence of CD45, Hexamer was distributed on the cell membrane, whereas it clustered in absence of CD45 via membrane glycans other than those found on CD7. Wild-type Gal3, Pentamer, and Hexamer required CD45 and CD7 to signal apoptosis, and the involvement of caspases in apoptogenic signaling was increased in absence of CD45. However, wild-type Gal3 depended on caspases to signal apoptosis to a greater extent than Hexamer, which had greater caspase dependence than Pentamer. Diminished caspase activation downstream of Hexamer signaling led to decreased pannexin-1 hemichannel opening and interleukin-2 secretion, events facilitated by the increased caspase activation downstream of wild-type Gal3 signaling. Thus, synthetic fixation of Gal3 multivalency can impart physical control of its outside-in signaling activity by governing membrane glycoprotein engagement and, in turn, intracellular pathway activation.
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20
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Distaffen HE, Jones CW, Abraham BL, Nilsson BL. Multivalent display of chemical signals on
self‐assembled
peptide scaffolds. Pept Sci (Hoboken) 2021. [DOI: 10.1002/pep2.24224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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21
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Liu R, Zuo R, Hudalla GA. Harnessing molecular recognition for localized drug delivery. Adv Drug Deliv Rev 2021; 170:238-260. [PMID: 33484737 PMCID: PMC8274479 DOI: 10.1016/j.addr.2021.01.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 12/18/2022]
Abstract
A grand challenge in drug delivery is providing the right dose, at the right anatomic location, for the right duration of time to maximize therapeutic efficacy while minimizing off-target toxicity and other deleterious side-effects. Two general modalities are receiving broad attention for localized drug delivery. In the first, referred to as "targeted accumulation", drugs or drug carriers are engineered to have targeting moieties that promote their accumulation at a specific tissue site from circulation. In the second, referred to as "local anchoring", drugs or drug carriers are inserted directly into the tissue site of interest where they persist for a specified duration of time. This review surveys recent advances in harnessing molecular recognition between proteins, peptides, nucleic acids, lipids, and carbohydrates to mediate targeted accumulation and local anchoring of drugs and drug carriers.
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Affiliation(s)
- Renjie Liu
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Ran Zuo
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Gregory A Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, USA.
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22
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Seroski DT, Dong X, Wong KM, Liu R, Shao Q, Paravastu AK, Hall CK, Hudalla GA. Charge guides pathway selection in β-sheet fibrillizing peptide co-assembly. Commun Chem 2020; 3:172. [PMID: 36703436 PMCID: PMC9814569 DOI: 10.1038/s42004-020-00414-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 10/15/2020] [Indexed: 01/29/2023] Open
Abstract
Peptide co-assembly is attractive for creating biomaterials with new forms and functions. Emergence of these properties depends on the peptide content of the final assembled structure, which is difficult to predict in multicomponent systems. Here using experiments and simulations we show that charge governs content by affecting propensity for self- and co-association in binary CATCH(+/-) peptide systems. Equimolar mixtures of CATCH(2+/2-), CATCH(4+/4-), and CATCH(6+/6-) formed two-component β-sheets. Solid-state NMR suggested the cationic peptide predominated in the final assemblies. The cationic-to-anionic peptide ratio decreased with increasing charge. CATCH(2+) formed β-sheets when alone, whereas the other peptides remained unassembled. Fibrillization rate increased with peptide charge. The zwitterionic CATCH parent peptide, "Q11", assembled slowly and only at decreased simulation temperature. These results demonstrate that increasing charge draws complementary peptides together faster, favoring co-assembly, while like-charged molecules repel. We foresee these insights enabling development of co-assembled peptide biomaterials with defined content and predictable properties.
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Affiliation(s)
- Dillon T Seroski
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Xin Dong
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, NC, 27695, USA
| | - Kong M Wong
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Renjie Liu
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Qing Shao
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, NC, 27695, USA
| | - Anant K Paravastu
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Carol K Hall
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, NC, 27695, USA
| | - Gregory A Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA.
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Uchida N, Muraoka T. Current Progress in Cross-Linked Peptide Self-Assemblies. Int J Mol Sci 2020; 21:E7577. [PMID: 33066439 PMCID: PMC7589166 DOI: 10.3390/ijms21207577] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/06/2020] [Accepted: 10/09/2020] [Indexed: 02/07/2023] Open
Abstract
Peptide-based fibrous supramolecular assemblies represent an emerging class of biomaterials that can realize various bioactivities and structures. Recently, a variety of peptide fibers with attractive functions have been designed together with the discovery of many peptide-based self-assembly units. Cross-linking of the peptide fibers is a key strategy to improve the functions of these materials. The cross-linking of peptide fibers forming three-dimensional networks in a dispersion can lead to changes in physical and chemical properties. Hydrogelation is a typical change caused by cross-linking, which makes it applicable to biomaterials such as cell scaffold materials. Cross-linking methods, which have been conventionally developed using water-soluble covalent polymers, are also useful in supramolecular peptide fibers. In the case of peptide fibers, unique cross-linking strategies can be designed by taking advantage of the functions of amino acids. This review focuses on the current progress in the design of cross-linked peptide fibers and their applications.
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Affiliation(s)
- Noriyuki Uchida
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Takahiro Muraoka
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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24
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Yang J, Du Q, Li L, Wang T, Feng Y, Nieh MP, Sheng J, Chen G. Glycosyltransferase-Induced Morphology Transition of Glycopeptide Self-Assemblies with Proteoglycan Residues. ACS Macro Lett 2020; 9:929-936. [PMID: 35648603 DOI: 10.1021/acsmacrolett.0c00306] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We previously proposed the deprotection-induced block copolymer self-assembly (DISA), that is, the deprotection of hydroxyl groups of saccharides resulted in self-assembly of glycopolymers (Qi et al. J. Am. Chem. Soc. 2018, 140 (28), 8851-8857 and Su et al. ACS Macro Lett. 2014, 3 (6), 534-539). In this study, we further combined glycochemistry and self-assembly strategy by introducing glycosyltransferase as the trigger, which constructs another glycosidic bonds and another carbohydrate building blocks in situ. Herein, we propose to utilize glycosyltransferase to induce the morphology transition of glycopeptide assemblies in the process of glycosidic bonds construction, which has never been reported in literature. This strategy provides us an alternative tool to construct proteoglycan-mimicking polymeric materials and deepens our understanding on the natural process of proteoglycan construction better in the future.
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Affiliation(s)
| | | | | | - Tingting Wang
- Key Laboratory of Chemical Biology of Natural Products (Ministry of Education), Institute of Bioch vcemical Drug, School of Pharmaceutical Science, Shandong University, Jinan, 250012, China
- National Glycoengineering Research Center, Shandong University, Jinan, 250012, China
| | | | | | - Juzheng Sheng
- Key Laboratory of Chemical Biology of Natural Products (Ministry of Education), Institute of Bioch vcemical Drug, School of Pharmaceutical Science, Shandong University, Jinan, 250012, China
- National Glycoengineering Research Center, Shandong University, Jinan, 250012, China
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25
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Kightlinger W, Warfel KF, DeLisa MP, Jewett MC. Synthetic Glycobiology: Parts, Systems, and Applications. ACS Synth Biol 2020; 9:1534-1562. [PMID: 32526139 PMCID: PMC7372563 DOI: 10.1021/acssynbio.0c00210] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Indexed: 12/11/2022]
Abstract
Protein glycosylation, the attachment of sugars to amino acid side chains, can endow proteins with a wide variety of properties of great interest to the engineering biology community. However, natural glycosylation systems are limited in the diversity of glycoproteins they can synthesize, the scale at which they can be harnessed for biotechnology, and the homogeneity of glycoprotein structures they can produce. Here we provide an overview of the emerging field of synthetic glycobiology, the application of synthetic biology tools and design principles to better understand and engineer glycosylation. Specifically, we focus on how the biosynthetic and analytical tools of synthetic biology have been used to redesign glycosylation systems to obtain defined glycosylation structures on proteins for diverse applications in medicine, materials, and diagnostics. We review the key biological parts available to synthetic biologists interested in engineering glycoproteins to solve compelling problems in glycoscience, describe recent efforts to construct synthetic glycoprotein synthesis systems, and outline exemplary applications as well as new opportunities in this emerging space.
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Affiliation(s)
- Weston Kightlinger
- Department
of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Tech E136, Evanston, Illinois 60208, United States
- Center
for Synthetic Biology, Northwestern University, 2145 Sheridan Road, Tech B486, Evanston, Illinois 60208, United States
| | - Katherine F. Warfel
- Department
of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Tech E136, Evanston, Illinois 60208, United States
- Center
for Synthetic Biology, Northwestern University, 2145 Sheridan Road, Tech B486, Evanston, Illinois 60208, United States
| | - Matthew P. DeLisa
- Department
of Microbiology, Cornell University, 123 Wing Drive, Ithaca, New York 14853, United States
- Robert
Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, New York 14853, United States
- Nancy
E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Weill Hall, Ithaca, New York 14853, United States
| | - Michael C. Jewett
- Department
of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Tech E136, Evanston, Illinois 60208, United States
- Center
for Synthetic Biology, Northwestern University, 2145 Sheridan Road, Tech B486, Evanston, Illinois 60208, United States
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26
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Characterizing the Physical Properties and Cell Compatibility of Phytoglycogen Extracted from Different Sweet Corn Varieties. Molecules 2020; 25:molecules25030637. [PMID: 32024194 PMCID: PMC7037141 DOI: 10.3390/molecules25030637] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/29/2020] [Accepted: 01/31/2020] [Indexed: 11/17/2022] Open
Abstract
Owing to its unique structure and properties, the glucose dendrimer phytoglycogen is gaining interest for medical and biotechnology applications. Although many maize variants are available from commercial and academic breeding programs, most applications rely on phytoglycogen extracted from the common maize variant, sugary1. Here we characterized the solubility, hydrodynamic diameter, water-binding properties, protein contaminant concentration, and cytotoxicity of phytoglycogens from different maize sources, A632su1, A619su1, Wesu7, and Ia453su1, harboring various sugary1 mutants. A619su1-SW phytoglycogen was cytotoxic while A632su1-SW phytoglycogen was not. A632su1-Pu phytoglycogen promoted cell growth, whereas extracts from A632su1-NE, A632su1-NC, and A632su1-CM were cytotoxic. Phytoglycogen extracted from Wesu7su1-NE using ethanol precipitation was cytotoxic. Acid-treatment improved Wesu7 phytoglycogen cytocompatibility. Protease-treated Wesu7 extracts promoted cell growth. Phytoglycogen extracted from Ia453su1 21 days after pollination (“Ia435su1 21DAP”) was cytotoxic, whereas phytoglycogen extracted at 40 days (“Ia435su1 40DAP”) was not. In general, size and solubility had no correlation with cytocompatibility, whereas protein contaminant concentration and water-binding properties did. A632su1-CM had the highest protein contamination among A632 mutants, consistent with its higher cytotoxicity. Likewise, Ia435su1 21DAP phytoglycogen had higher protein contamination than Ia435su1 40DAP. Conversely, protease-treated Wesu7 extracts had lower protein contamination than the other Wesu7 extracts. A632su1-NE, A632su1-NC, and A632su1-CM had similar water-binding properties which differed from those of A632su1-Pu and A632su1-SW. Likewise, water binding differed between Ia435su1 21DAP and Ia435su1 40DAP. Collectively, these data demonstrate that maize phytoglycogen extracts are not uniformly cytocompatible. Rather, maize variant, plant genotype, protein contaminants, and water-binding properties are determinants of phytoglycogen cytotoxicity.
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Walimbe T, Panitch A. Proteoglycans in Biomedicine: Resurgence of an Underexploited Class of ECM Molecules. Front Pharmacol 2020; 10:1661. [PMID: 32082161 PMCID: PMC7000921 DOI: 10.3389/fphar.2019.01661] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/18/2019] [Indexed: 01/02/2023] Open
Abstract
Proteoglycans have emerged as biomacromolecules with important roles in matrix remodeling, homeostasis, and signaling in the past two decades. Due to their negatively charged glycosaminoglycan chains as well as distinct core protein structures, they interact with a variety of molecules, including matrix proteins, growth factors, cytokines and chemokines, pathogens, and enzymes. This led to the dawn of glycan therapies in the 20th century, but this research was quickly overshadowed by readily available DNA and protein-based therapies. The recent development of recombinant technology and advances in our understanding of proteoglycan function have led to a resurgence of these molecules as potential therapeutics. This review focuses on the recent preclinical efforts that are bringing proteoglycan research and therapies back to the forefront. Examples of studies using proteoglycan cores and mimetics have also been included to give the readers a perspective on the wide-ranging and extensive applications of these versatile molecules. Collectively, these advances are opening new avenues for targeting diseases at a molecular level, and providing avenues for the development of new and exciting treatments in regenerative medicine.
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Affiliation(s)
- Tanaya Walimbe
- Laboratory of Engineered Therapeutics, Department of Biomedical Engineering, University of California, Davis, Davis, CA, United States
| | - Alyssa Panitch
- Laboratory of Engineered Therapeutics, Department of Biomedical Engineering, University of California, Davis, Davis, CA, United States
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28
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Farhadi SA, Fettis MM, Liu R, Hudalla GA. A Synthetic Tetramer of Galectin-1 and Galectin-3 Amplifies Pro-apoptotic Signaling by Integrating the Activity of Both Galectins. Front Chem 2020; 7:898. [PMID: 31998689 PMCID: PMC6966408 DOI: 10.3389/fchem.2019.00898] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 12/12/2019] [Indexed: 01/16/2023] Open
Abstract
Galectin-1 (G1) and galectin-3 (G3) are carbohydrate-binding proteins that can signal apoptosis in T cells. We recently reported that a synthetic tetramer with two G1 and two G3 domains ("G1/G3 Zipper") induces Jurkat T cell death more potently than G1. The pro-apoptotic signaling pathway of G1/G3 Zipper was not elucidated, but we hypothesized based on prior work that the G1 domains acted as the signaling units, while the G3 domains served as anchors that increase glycan-binding affinity. To test this, here we studied the involvement of different cell membrane glycoproteins and intracellular mediators in pro-apoptotic signaling via G1/G3 Zipper, G1, and G3. G1/G3 Zipper induced Jurkat T cell death more potently than G1 and G3 alone or in combination. G1/G3 Zipper, G1, and G3 increased caspase-8 activity, yet only G1 and G3 depended on it to induce cell death. G3 increased caspase-3 activity more than G1/G3 Zipper and G1, while all three galectin variants required it to induce cell death. JNK activation had similar roles downstream of G1/G3 Zipper, G1, and G3, whereas ERK had differing roles. CD45 was essential for G1 activity, and was involved in signaling via G1/G3 Zipper and G3. CD7 inhibited G1/G3 Zipper activity at low galectin concentrations but not at high galectin concentrations. In contrast, CD7 was necessary for G1 and G3 signaling at low galectin concentration but antagonistic at high galectin concentrations. Collectively, these observations suggest that G1/G3 Zipper amplifies pro-apoptotic signaling through the integrated activity of both the G1 and G3 domains.
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Affiliation(s)
- Shaheen A Farhadi
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, United States
| | - Margaret M Fettis
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, United States
| | - Renjie Liu
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, United States
| | - Gregory A Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, United States
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29
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Li S, Zhang Q, Bai H, Huang W, Shu C, Ye C, Sun W, Ma Y. Self-Assembled Nanofibers Elicit Potent HPV16 E7-Specific Cellular Immunity And Abolish Established TC-1 Graft Tumor. Int J Nanomedicine 2019; 14:8209-8219. [PMID: 31632028 PMCID: PMC6794571 DOI: 10.2147/ijn.s214525] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/11/2019] [Indexed: 01/15/2023] Open
Abstract
Background Vaccines are one of the most promising strategies for immunotherapy of HPV associated tumors; however, they generally lack significant clinical efficacy at present. This inefficacy might be due to inefficient generation of anti-tumor cellular immune responses. Purpose This study aimed to assess the potential of using self-assembled nanofibers as a new vaccine platform to elicit potent HPV antigen - specific anti-tumor immunity. Methods A HPV16 E744-62 peptide was chemically appended to the N terminus of self-assembling peptide Q11. The nanofibers were prepared and used to immunize mice through a preventive or therapeutic strategy in a TC-1 graft tumor model. Results Preventive immunization with nanofibers almost completely suppressed the growth of primarily grafted TC-1 tumors and even a re-challenge of tumor cells after a six-week rest. Therapeutic immunization significantly increased the levels of effector Th1 cells, CTLs and the cytokines IFN-γ and TNF-α in E7 peptide-stimulated splenocytes, and the immunization reduced Th2, MDSC and IL-4 contents compared to the controls. The nanofiber immunization significantly suppressed the growth of established tumors and achieved 66.7% and 50% tumor-free in mice carrying 2-3 mm tumors and even larger tumors with a diameter of 5-6 mm respectively. In addition, the nanofibers were more efficient than the corresponding unassembled peptides for the treatment of established larger size tumors. Conclusion The results indicated that self-assembling nanofibers could elicit robust HPV antigen -specific anti-tumor cellular immunity and are a potent antigen delivery system for HPV related tumor vaccines.
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Affiliation(s)
- Sijin Li
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Science & Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, People's Republic of China.,Yunnan Engineering Research Center of Vaccine Research and Development on Severe Infectious Disease, Kunming, People's Republic of China
| | - Qishu Zhang
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Science & Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, People's Republic of China.,Yunnan Engineering Research Center of Vaccine Research and Development on Severe Infectious Disease, Kunming, People's Republic of China
| | - Hongmei Bai
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Science & Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, People's Republic of China.,Yunnan Engineering Research Center of Vaccine Research and Development on Severe Infectious Disease, Kunming, People's Republic of China
| | - Weiwei Huang
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Science & Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, People's Republic of China.,Yunnan Engineering Research Center of Vaccine Research and Development on Severe Infectious Disease, Kunming, People's Republic of China
| | - Congyan Shu
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Science & Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, People's Republic of China.,Yunnan Engineering Research Center of Vaccine Research and Development on Severe Infectious Disease, Kunming, People's Republic of China
| | - Chao Ye
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Science & Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, People's Republic of China.,Yunnan Engineering Research Center of Vaccine Research and Development on Severe Infectious Disease, Kunming, People's Republic of China
| | - Wenjia Sun
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Science & Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, People's Republic of China.,Yunnan Engineering Research Center of Vaccine Research and Development on Severe Infectious Disease, Kunming, People's Republic of China
| | - Yanbing Ma
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Science & Peking Union Medical College, Kunming, People's Republic of China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, People's Republic of China.,Yunnan Engineering Research Center of Vaccine Research and Development on Severe Infectious Disease, Kunming, People's Republic of China
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30
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Hierarchical self-assembly and emergent function of densely glycosylated peptide nanofibers. Commun Chem 2019. [DOI: 10.1038/s42004-019-0154-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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31
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Liu R, Hudalla GA. Using Self-Assembling Peptides to Integrate Biomolecules into Functional Supramolecular Biomaterials. Molecules 2019; 24:E1450. [PMID: 31013712 PMCID: PMC6514692 DOI: 10.3390/molecules24081450] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/27/2019] [Accepted: 04/03/2019] [Indexed: 02/07/2023] Open
Abstract
Throughout nature, self-assembly gives rise to functional supramolecular biomaterials that can perform complex tasks with extraordinary efficiency and specificity. Inspired by these examples, self-assembly is increasingly used to fabricate synthetic supramolecular biomaterials for diverse applications in biomedicine and biotechnology. Peptides are particularly attractive as building blocks for these materials because they are based on naturally derived amino acids that are biocompatible and biodegradable; they can be synthesized using scalable and cost-effective methods, and their sequence can be tailored to encode formation of diverse architectures. To endow synthetic supramolecular biomaterials with functional capabilities, it is now commonplace to conjugate self-assembling building blocks to molecules having a desired functional property, such as selective recognition of a cell surface receptor or soluble protein, antigenicity, or enzymatic activity. This review surveys recent advances in using self-assembling peptides as handles to incorporate biologically active molecules into supramolecular biomaterials. Particular emphasis is placed on examples of functional nanofibers, nanovesicles, and other nano-scale structures that are fabricated by linking self-assembling peptides to proteins and carbohydrates. Collectively, this review highlights the enormous potential of these approaches to create supramolecular biomaterials with sophisticated functional capabilities that can be finely tuned to meet the needs of downstream applications.
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Affiliation(s)
- Renjie Liu
- J. Crayton Pruitt Family Department of Biomedical Engineering, Wertheim College of Engineering, University of Florida, Gainesville, FL 32611, USA.
| | - Gregory A Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, Wertheim College of Engineering, University of Florida, Gainesville, FL 32611, USA.
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32
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Locally anchoring enzymes to tissues via extracellular glycan recognition. Nat Commun 2018; 9:4943. [PMID: 30467349 PMCID: PMC6250738 DOI: 10.1038/s41467-018-07129-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 10/12/2018] [Indexed: 01/06/2023] Open
Abstract
Success of enzymes as drugs requires that they persist within target tissues over therapeutically effective time frames. Here we report a general strategy to anchor enzymes at injection sites via fusion to galectin-3 (G3), a carbohydrate-binding protein. Fusing G3 to luciferase extended bioluminescence in subcutaneous tissue to ~7 days, whereas unmodified luciferase was undetectable within hours. Engineering G3-luciferase fusions to self-assemble into a trimeric architecture extended bioluminescence in subcutaneous tissue to 14 days, and intramuscularly to 3 days. The longer local half-life of the trimeric assembly was likely due to its higher carbohydrate-binding affinity compared to the monomeric fusion. G3 fusions and trimeric assemblies lacked extracellular signaling activity of wild-type G3 and did not accumulate in blood after subcutaneous injection, suggesting low potential for deleterious off-site effects. G3-mediated anchoring to common tissue glycans is expected to be broadly applicable for improving local pharmacokinetics of various existing and emerging enzyme drugs. The use of enzymes as drugs requires that they persist within target tissues over therapeutically relevant time frames. Here the authors use a galectin-3 fusion to anchor enzymes at injection sites for up to 14 days.
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33
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Laaf D, Bojarová P, Elling L, Křen V. Galectin-Carbohydrate Interactions in Biomedicine and Biotechnology. Trends Biotechnol 2018; 37:402-415. [PMID: 30413271 DOI: 10.1016/j.tibtech.2018.10.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 09/25/2018] [Accepted: 10/02/2018] [Indexed: 12/23/2022]
Abstract
Cellular communication events are mediated by interactions between cell-surface sugars and lectins, which are carbohydrate-binding proteins. Galectins are β-galactosyl-binding lectins that bridge molecules by their sugar moieties, forming a signaling and adhesion network. Severe changes in glycosylation and galectin expression accompany major processes in oncogenesis, cardiovascular disorders, and other pathologies, making galectins attractive therapeutic targets. Here we discuss advanced strategies of chemo-enzymatic carbohydrate synthesis for creating lead glycomimetics and (neo-)glycoconjugates for galectin-1 and -3 targeting in biomedicine and biotechnology. We will describe the challenges and bottlenecks on the route into biomedical and biotechnological practice and present the first clinical candidates. The coming era will see an exciting translation of selective well-defined high-affinity galectin ligands from bench to bedside.
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Affiliation(s)
- Dominic Laaf
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstraße 20, D-52074 Aachen, Germany; Equally contributing authors
| | - Pavla Bojarová
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-14220 Prague 4, Czech Republic; Equally contributing authors
| | - Lothar Elling
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstraße 20, D-52074 Aachen, Germany.
| | - Vladimír Křen
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, CZ-14220 Prague 4, Czech Republic.
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34
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Hainline KM, Gu F, Handley JF, Tian YF, Wu Y, de Wet L, Vander Griend DJ, Collier JH. Self-Assembling Peptide Gels for 3D Prostate Cancer Spheroid Culture. Macromol Biosci 2018; 19:e1800249. [PMID: 30324687 DOI: 10.1002/mabi.201800249] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/13/2018] [Indexed: 12/11/2022]
Abstract
Progress in prostate cancer research is presently limited by a shortage of reliable in vitro model systems. The authors describe a novel self-assembling peptide, bQ13, which forms nanofibers and gels useful for the 3D culture of prostate cancer spheroids, with improved cytocompatibility compared to related fibrillizing peptides. The mechanical properties of bQ13 gels can be controlled by adjusting peptide concentration, with storage moduli ranging between 1 and 10 kPa. bQ13's ability to remain soluble at mildly basic pH considerably improved the viability of encapsulated cells compared to other self-assembling nanofiber-forming peptides. LNCaP cells formed spheroids in bQ13 gels with similar morphologies and sizes to those formed in Matrigel or RADA16-I. Moreover, prostate-specific antigen (PSA) is produced by LNCaP cells in all matrices, and PSA production is more responsive to enzalutamide treatment in bQ13 gels than in other fibrillized peptide gels. bQ13 represents an attractive platform for further tailoring within 3D cell culture systems.
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Affiliation(s)
- Kelly M Hainline
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Fangqi Gu
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Jacqueline F Handley
- Department of Surgery, Section of Urology, University of Chicago, Chicago, IL, 60637, USA
| | - Ye F Tian
- Department of Surgery, Section of Urology, University of Chicago, Chicago, IL, 60637, USA
| | - Yaoying Wu
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Larischa de Wet
- Department of Surgery, Section of Urology, University of Chicago, Chicago, IL, 60637, USA
| | - Donald J Vander Griend
- Department of Surgery, Section of Urology, University of Chicago, Chicago, IL, 60637, USA
| | - Joel H Collier
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
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Abstract
The conjugation of biomolecules can impart materials with the bioactivity necessary to modulate specific cell behaviors. While the biological roles of particular polypeptide, oligonucleotide, and glycan structures have been extensively reviewed, along with the influence of attachment on material structure and function, the key role played by the conjugation strategy in determining activity is often overlooked. In this review, we focus on the chemistry of biomolecule conjugation and provide a comprehensive overview of the key strategies for achieving controlled biomaterial functionalization. No universal method exists to provide optimal attachment, and here we will discuss both the relative advantages and disadvantages of each technique. In doing so, we highlight the importance of carefully considering the impact and suitability of a particular technique during biomaterial design.
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Affiliation(s)
- Christopher D. Spicer
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles Väg 2, Stockholm, Sweden
| | - E. Thomas Pashuck
- NJ
Centre for Biomaterials, Rutgers University, 145 Bevier Road, Piscataway, New Jersey United States
| | - Molly M. Stevens
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles Väg 2, Stockholm, Sweden
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, Exhibition Road, London, United Kingdom
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Restuccia A, Fettis MM, Farhadi SA, Molinaro MD, Kane B, Hudalla GA. Evaluation of Self-Assembled Glycopeptide Nanofibers Modified with N,N′-Diacetyllactosamine for Selective Galectin-3 Recognition and Inhibition. ACS Biomater Sci Eng 2018. [DOI: 10.1021/acsbiomaterials.8b00611] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Antonietta Restuccia
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, PO Box 116131, Biomedical Sciences Building JG56, 1275 Center Drive, Gainesville, Florida 32611, United States
| | - Margaret M. Fettis
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, PO Box 116131, Biomedical Sciences Building JG56, 1275 Center Drive, Gainesville, Florida 32611, United States
| | - Shaheen A. Farhadi
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, PO Box 116131, Biomedical Sciences Building JG56, 1275 Center Drive, Gainesville, Florida 32611, United States
| | - Matthew D. Molinaro
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, PO Box 116131, Biomedical Sciences Building JG56, 1275 Center Drive, Gainesville, Florida 32611, United States
| | - Bryant Kane
- Department of Biochemistry and Molecular Biology, University of Florida, 1200 Newell Drive, Gainesville, Florida 32611, United States
| | - Gregory A. Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, PO Box 116131, Biomedical Sciences Building JG56, 1275 Center Drive, Gainesville, Florida 32611, United States
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37
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Fettis MM, Hudalla GA. Engineering Reactive Oxygen Species-Resistant Galectin-1 Dimers with Enhanced Lectin Activity. Bioconjug Chem 2018; 29:2489-2496. [DOI: 10.1021/acs.bioconjchem.8b00425] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Margaret M. Fettis
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Gainesville, Florida 32611, United States
| | - Gregory A. Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Gainesville, Florida 32611, United States
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Nuclear galectin-1-FOXP3 interaction dampens the tumor-suppressive properties of FOXP3 in breast cancer. Cell Death Dis 2018; 9:416. [PMID: 29549328 PMCID: PMC5856744 DOI: 10.1038/s41419-018-0448-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/08/2018] [Accepted: 02/19/2018] [Indexed: 12/22/2022]
Abstract
FOXP3 is an important X-linked suppressor of breast cancer. It is reported that FOXP3 is usually mutant, absent, or cytoplasmic distribution in breast cancer cells, which increases the risk of breast cancer. However, in our study the full-length FOXP3 transcript can be detected in breast cancer cells and nuclear FOXP3 is expressed in some breast cancer samples. Therefore, an important question is how the tumor-suppressive function of wild-type FOXP3 is negated in these cancers. We found that Gal-1 is a novel interacting protein of FOXP3 in breast cancer. Furthermore, our results show that the FKH domain in FOXP3 is essential for its interaction with Gal-1. Through ChIP-seq assay, we found that the expression of Gal-1 could inhibit a variety of target genes which were directly regulated by FOXP3. More importantly, these FOXP3-bound genes are involved in the development and metastasis of cancer. Furthermore, functional studies revealed that blocking the FOXP3/Gal-1 interaction restores the tumor-suppressive properties of FOXP3 in breast cancer cells. Finally, we observed that the nuclear abundance of Gal-1 was significantly higher in breast cancer tissues than that in adjacent normal tissues. In addition, we identified that the acidic extracellular microenvironment in breast cancer tissues causes Gal-1 to accumulate in the nucleus. Altogether, nuclear Gal-1 interferes with the binding of FOXP3 to DNA by interacting with the FKH domain of FOXP3, and it indicates a possible mechanism for the loss of the tumor-suppressive properties of FOXP3 in wild-type FOXP3-positive breast cancer.
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40
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Restuccia A, Hudalla GA. Tuning carbohydrate density enhances protein binding and inhibition by glycosylated β-sheet peptide nanofibers. Biomater Sci 2018; 6:2327-2335. [DOI: 10.1039/c8bm00533h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The efficacy of glycosylated β-sheet peptide nanofibers for inhibiting carbohydrate-binding proteins can be increased by tuning carbohydrate density to maximize protein binding affinity.
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Affiliation(s)
- Antonietta Restuccia
- J. Crayton Pruitt Family Department of Biomedical Engineering
- University of Florida
- Gainesville
- USA 32611
| | - Gregory A. Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering
- University of Florida
- Gainesville
- USA 32611
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Zhu Z, Yi S, Shan Z, Guo H, Ke S. Effect of isoflurane + N 2O inhalation and propofol + fentanyl anesthesia on myocardial function as assessed by cardiac troponin, caspase-3, cyclooxygenase-2 and inducible nitric oxide synthase expression. Exp Ther Med 2017; 14:4377-4382. [PMID: 29067116 DOI: 10.3892/etm.2017.5029] [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: 02/21/2016] [Accepted: 05/11/2017] [Indexed: 11/06/2022] Open
Abstract
The aim of this study was to evaluate the effect of isoflurane + N2O inhalation and propofol + fentanyl anesthesia on myocardial function as assessed by cardiac troponin T (cTnT). A total of 60 patients were randomized into two groups: isoflurane + N2O inhalation (n=30) and propofol + fentanyl anesthesia (n=30). The findings demonstrated that there was no significant difference between the two experimental groups in terms of cTnT levels, demographic properties or hemodynamic parameters. Isoflurane + N2O inhalation and propofol + fentanyl anesthesia, respectively, were also investigated in a rat model of myocardial infarction. Myocardial cell damage, inflammation and oxidative stress levels, caspase-3/9 activities and cyclooxygenase-2 protein expression were markedly decreased, although there was no statistical significance difference between the two experimental groups. Notably, inducible nitric oxide synthase protein expression in the isoflurane + N2O inhalation group was significantly higher than that of the propofol + fentanyl anesthesia group (P<0.01). In conclusion, isoflurane + N2O inhalation and propofol + fentanyl anesthesia are not associated with risks for myocardial function.
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Affiliation(s)
- Zhuanghui Zhu
- Department of Cardiac Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian 361003, P.R. China
| | - Shuanglian Yi
- Department of Gastroenterology, Zhongshan Hospital of Xiamen University, Xiamen, Fujian 361003, P.R. China
| | - Zhonggui Shan
- Department of Cardiac Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian 361003, P.R. China.,Department of Cardiac Surgery, Teaching Hospital of Fujian Medical University, Xiamen, Fujian 361003, P.R. China
| | - Hongwei Guo
- Department of Cardiac Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian 361003, P.R. China
| | - Shaofan Ke
- Department of Cardiac Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian 361003, P.R. China
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Farhadi SA, Hudalla GA. Engineering galectin-glycan interactions for immunotherapy and immunomodulation. Exp Biol Med (Maywood) 2017; 241:1074-83. [PMID: 27229902 DOI: 10.1177/1535370216650055] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Galectins, a 15-member family of soluble carbohydrate-binding proteins, are receiving increasing interest as therapeutic targets for immunotherapy and immunomodulation due to their role as extracellular signals that regulate innate and adaptive immune cell phenotype and function. However, different galectins can have redundant, synergistic, or antagonistic signaling activity in normal immunological responses, such as resolution of inflammation and induction of antigen-specific tolerance. In addition, certain galectins can be hijacked to promote progression of immunopathologies, such as tumor immune privilege, metastasis, and viral infection, while others can inhibit these processes. Thus, eliciting a desired immunological outcome will likely necessitate therapeutics that can precisely enhance or inhibit particular galectin-glycan interactions. Multivalency is an important determinant of the affinity and specificity of natural galectin-glycan interactions, and is emerging as a key design element for therapeutics that can effectively manipulate galectin bioactivity. This minireview surveys current molecular and biomaterial engineering approaches to create therapeutics that can stabilize galectin multivalency or recapitulate natural glycan multivalency (i.e. "the glycocluster effect"). In particular, we highlight examples of using natural and engineered multivalent galectins for immunosuppression and immune tolerance, with a particular emphasis on treating autoimmune diseases or avoiding transplant rejection. In addition, we present examples of multivalent inhibitors of galectin-glycan interactions to maintain or restore T-cell function, with a particular emphasis on promoting antitumor immunity. Finally, we discuss emerging opportunities to further engineer galectin-glycan interactions for immunotherapy and immunomodulation.
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Affiliation(s)
- Shaheen A Farhadi
- J Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Gregory A Hudalla
- J Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, USA
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Dosekova E, Filip J, Bertok T, Both P, Kasak P, Tkac J. Nanotechnology in Glycomics: Applications in Diagnostics, Therapy, Imaging, and Separation Processes. Med Res Rev 2017; 37:514-626. [PMID: 27859448 PMCID: PMC5659385 DOI: 10.1002/med.21420] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 09/08/2016] [Accepted: 09/21/2016] [Indexed: 12/14/2022]
Abstract
This review comprehensively covers the most recent achievements (from 2013) in the successful integration of nanomaterials in the field of glycomics. The first part of the paper addresses the beneficial properties of nanomaterials for the construction of biosensors, bioanalytical devices, and protocols for the detection of various analytes, including viruses and whole cells, together with their key characteristics. The second part of the review focuses on the application of nanomaterials integrated with glycans for various biomedical applications, that is, vaccines against viral and bacterial infections and cancer cells, as therapeutic agents, for in vivo imaging and nuclear magnetic resonance imaging, and for selective drug delivery. The final part of the review describes various ways in which glycan enrichment can be effectively done using nanomaterials, molecularly imprinted polymers with polymer thickness controlled at the nanoscale, with a subsequent analysis of glycans by mass spectrometry. A short section describing an active glycoprofiling by microengines (microrockets) is covered as well.
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Affiliation(s)
- Erika Dosekova
- Department of Glycobiotechnology, Institute of ChemistrySlovak Academy of SciencesDubravska cesta 9845 38BratislavaSlovakia
| | - Jaroslav Filip
- Center for Advanced MaterialsQatar UniversityP.O. Box 2713DohaQatar
| | - Tomas Bertok
- Department of Glycobiotechnology, Institute of ChemistrySlovak Academy of SciencesDubravska cesta 9845 38BratislavaSlovakia
| | - Peter Both
- School of Chemistry, Manchester Institute of BiotechnologyThe University of Manchester131 Princess StreetManchesterM1 7DNUK
| | - Peter Kasak
- Center for Advanced MaterialsQatar UniversityP.O. Box 2713DohaQatar
| | - Jan Tkac
- Department of Glycobiotechnology, Institute of ChemistrySlovak Academy of SciencesDubravska cesta 9845 38BratislavaSlovakia
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Huang ML, Godula K. Nanoscale materials for probing the biological functions of the glycocalyx. Glycobiology 2016; 26:797-803. [PMID: 26916883 PMCID: PMC5018045 DOI: 10.1093/glycob/cww022] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 01/31/2016] [Accepted: 02/16/2016] [Indexed: 12/23/2022] Open
Abstract
Glycans are among the most intriguing carriers of biological information in living systems. The structures of glycans not only convey the cells' physiological state, but also regulate cellular communication and responses by engaging receptors on neighboring cells and in the extracellular matrix. The assembly of simple monosaccharide building blocks into linear or branched oligo- and polysaccharides gives rise to a large repertoire of diverse glycan structures. Despite their structural complexity, individual glycans rarely engage their protein partners with high affinity. Yet, glycans modulate biological processes with exquisite selectivity and specificity. To correctly evaluate glycan interactions and their biological consequences, one needs to look beyond individual glycan structures and consider the entirety of the cell-surface landscape. There, glycans are presented on protein scaffolds, or are linked directly to membrane lipids, forming a complex, hierarchically organized network with specialized functions, called the glycocalyx. Nanoscale glycomaterials, which can mimic the various components of the glycocalyx, have been instrumental in revealing how the presentation of glycans can influence their biological functions. In this review, we wish to highlight some recent developments in this area, while placing emphasis on the applications of glycomaterials providing new insights into the mechanisms through which glycans mediate cellular functions.
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Affiliation(s)
- Mia L Huang
- Department of Chemistry and Biochemistry, University of California, San Diego, CA 92093-0358, USA
| | - Kamil Godula
- Department of Chemistry and Biochemistry, University of California, San Diego, CA 92093-0358, USA
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Co-Assembly Tags Based on Charge Complementarity (CATCH) for Installing Functional Protein Ligands into Supramolecular Biomaterials. Cell Mol Bioeng 2016. [DOI: 10.1007/s12195-016-0459-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Liu J, Sun Z, Yuan Y, Tian X, Liu X, Duan G, Yang Y, Yuan L, Lin HC, Li X. Peptide Glycosylation Generates Supramolecular Assemblies from Glycopeptides as Biomimetic Scaffolds for Cell Adhesion and Proliferation. ACS APPLIED MATERIALS & INTERFACES 2016; 8:6917-6924. [PMID: 26930123 DOI: 10.1021/acsami.6b00850] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Glycopeptide-based hydrogelators with well-defined molecular structures and varied contents of sugar moieties were prepared via in vitro peptide glycosylation reactions. With systematic glucose modification, these glycopeptide hydrogelators exhibited diverse self-assembling behaviors in water and formed supramolecular hydrogels with enhanced thermostability and biostability, in comparison with their peptide analogue. Moreover, because of high water content and similar structural morphology and composition to extracellular matrixes (ECM) in tissues, these self-assembled hydrogels also exhibited great potential to act as new biomimetic scaffolds for mammalian cell growth. Therefore, peptide glycosylation proved to be an effective means for peptide modification and generation of novel supramolecular hydrogelators/hydrogels with improved biophysical properties (e.g., high biostability, increased thermostability, and cell adhesion) which could promise potential applications in regenerative medicine.
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Affiliation(s)
- Jie Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, China
| | - Ziling Sun
- School of Biology and Basic Medical Science, Soochow University , Suzhou, 215123, China
| | - Yuqi Yuan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, China
| | - Xin Tian
- School of Biology and Basic Medical Science, Soochow University , Suzhou, 215123, China
| | - Xi Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, China
| | - Guangxin Duan
- School of Biology and Basic Medical Science, Soochow University , Suzhou, 215123, China
| | - Yonggang Yang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, China
| | - Lin Yuan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, China
| | - Hsin-Chieh Lin
- Department of Materials Science and Engineering, National Chiao Tung University , Hsinchu, 300, Taiwan
| | - Xinming Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University , Shanghai 200433, China
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Fettis MM, Wei Y, Restuccia A, Kurian JJ, Wallet SM, Hudalla GA. Microgels with tunable affinity-controlled protein release via desolvation of self-assembled peptide nanofibers. J Mater Chem B 2016; 4:3054-3064. [PMID: 32263044 DOI: 10.1039/c5tb02446c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With a growing number of bioactive protein drugs approved for clinical use each year, there is increasing need for vehicles for localized protein delivery to reduce administered doses, prevent off-target activity, and maintain protein bioactivity. Ideal protein delivery vehicles provide high encapsulation efficiency of bioactive drug, enable fine-tuning of protein release profiles, are biocompatible, and can be administered via minimally-invasive routes. Here we developed an approach to create micron-sized hydrated gels (i.e."microgels") for protein delivery that fulfill these requirements via desolvation of self-assembled β-sheet peptide nanofibers. Specifically, aqueous solutions of peptide nanofibers were diluted under stirring conditions in a "desolvating agent", such as ethanol, which is miscible with water but poorly solvates peptides. The desolvating agent induced nanofiber physical crosslinking into microgels that retained β-sheet secondary structure and were stable in aqueous solutions. Microgels did not activate dendritic cells in vitro, suggesting they are biocompatible. Peptide nanofibers and proteins having similar non-solvent immiscibility properties were co-desolvated to produce protein-loaded microgels with loading efficiencies of ∼85%. Encapsulated bioactive proteins rapidly diffused into bulk aqueous media, as expected for hydrated gels. Modifying peptide nanofibers with a protein-binding ligand provided tunable affinity-controlled protein release. Biocompatible microgels formed via desolvation of self-assembled peptide nanofibers are therefore likely to be broadly useful as vehicles for localized delivery of bioactive proteins, as well as other therapeutic molecules.
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Affiliation(s)
- Margaret M Fettis
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Drive, Gainesville, FL 32611, USA.
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