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Xing H, Wigham C, Lee SR, Pereira AJ, de Campos LJ, Picco AS, Huck-Iriart C, Escudero C, Perez-Chirinos L, Gajaweera S, Comer J, Sasselli IR, Stupp SI, Zha RH, Conda-Sheridan M. Enhanced Hydrogen Bonding by Urea Functionalization Tunes the Stability and Biological Properties of Peptide Amphiphiles. Biomacromolecules 2024. [PMID: 38602228 DOI: 10.1021/acs.biomac.3c01463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Self-assembled nanostructures such as those formed by peptide amphiphiles (PAs) are of great interest in biological and pharmacological applications. Herein, a simple and widely applicable chemical modification, a urea motif, was included in the PA's molecular structure to stabilize the nanostructures by virtue of intermolecular hydrogen bonds. Since the amino acid residue nearest to the lipid tail is the most relevant for stability, we decided to include the urea modification at that position. We prepared four groups of molecules (13 PAs in all), with varying levels of intermolecular cohesion, using amino acids with distinct β-sheet promoting potential and/or containing hydrophobic tails of distinct lengths. Each subset contained one urea-modified PA and nonmodified PAs, all with the same peptide sequence. The varied responses of these PAs to variations in pH, temperature, counterions, and biologically related proteins were examined using microscopic, X-ray, spectrometric techniques, and molecular simulations. We found that the urea group contributes to the stabilization of the morphology and internal arrangement of the assemblies against environmental stimuli for all peptide sequences. In addition, microbiological and biological studies were performed with the cationic PAs. These assays reveal that the addition of urea linkages affects the PA-cell membrane interaction, showing the potential to increase the selectivity toward bacteria. Our data indicate that the urea motif can be used to tune the stability of a wide range of PA nanostructures, allowing flexibility on the biomaterial's design and opening a myriad of options for clinical therapies.
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Affiliation(s)
- Huihua Xing
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Caleb Wigham
- Department of Chemical & Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Sieun Ruth Lee
- Department of Materials Science & Engineering, Chemistry, Biomedical Engineering, Medicine, and Simpson Querrey Institute, Northwestern University, Evanston, Illinois 60208, United States
| | - Aramis J Pereira
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Luana J de Campos
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Agustín S Picco
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas, INIFTA-CONICET-UNLP, La Plata 1900, Argentina
| | - Cristián Huck-Iriart
- ALBA Synchrotron Light Source, Experiments Division, 08290 Cerdanyola del Vallès, Spain
| | - Carlos Escudero
- ALBA Synchrotron Light Source, Experiments Division, 08290 Cerdanyola del Vallès, Spain
| | - Laura Perez-Chirinos
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia 20014, San Sebastián, Spain
| | - Sandun Gajaweera
- Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas 66506, United States
| | - Jeffrey Comer
- Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas 66506, United States
| | - Ivan R Sasselli
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia 20014, San Sebastián, Spain
- Centro de Fisica de Materiales (CFM), CSIC-UPV/EHU, Donostia 20018, San Sebastián, Spain
| | - Samuel I Stupp
- Department of Materials Science & Engineering, Chemistry, Biomedical Engineering, Medicine, and Simpson Querrey Institute, Northwestern University, Evanston, Illinois 60208, United States
| | - R Helen Zha
- Department of Chemical & Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Martin Conda-Sheridan
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
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2
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Lee S, Carrow JK, Fraser LA, Yan J, Jeyamogan S, Sambandam Y, Clemons TD, Kolberg-Edelbrock AN, He J, Mathew J, Zhang ZJ, Leventhal JP, Gallon L, Palmer LC, Stupp SI. Single-cell coating with biomimetic extracellular nanofiber matrices. Acta Biomater 2024; 177:50-61. [PMID: 38331132 DOI: 10.1016/j.actbio.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 01/17/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
Cell therapies offer great promise in the treatment of diseases and tissue regeneration, but their clinical use has many challenges including survival, optimal performance in their intended function, or localization at sites where they are needed for effective outcomes. We report here on a method to coat a biodegradable matrix of biomimetic nanofibers on single cells that could have specific functions ranging from cell signaling to targeting and helping cells survive when used for therapies. The fibers are composed of peptide amphiphile (PA) molecules that self-assemble into supramolecular nanoscale filaments. The PA nanofibers were able to create a mesh-like coating for a wide range of cell lineages with nearly 100 % efficiency, without interrupting the natural cellular phenotype or functions. The targeting abilities of this system were assessed in vitro using human primary regulatory T (hTreg) cells coated with PAs displaying a vascular cell adhesion protein 1 (VCAM-1) targeting motif. This approach provides a biocompatible method for single-cell coating that does not negatively alter cellular phenotype, binding capacity, or immunosuppressive functionality, with potential utility across a broad spectrum of cell therapies. STATEMENT OF SIGNIFICANCE: Cell therapies hold great promise in the treatment of diseases and tissue regeneration, but their clinical use has been limited by cell survival, targeting, and function. We report here a method to coat single cells with a biodegradable matrix of biomimetic nanofibers composed of peptide amphiphile (PA) molecules. The nanofibers were able to coat cells, such as human primary regulatory T cells, with nearly 100 % efficiency, without interrupting the natural cellular phenotype or functions. The approach provides a biocompatible method for single-cell coating that does not negatively alter cellular phenotype, binding capacity, or immunosuppressive functionality, with potential utility across a broad spectrum of cell therapies.
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Affiliation(s)
- Slgirim Lee
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States
| | - James K Carrow
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States
| | - Lewis A Fraser
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States
| | - Jianglong Yan
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States
| | - Shareni Jeyamogan
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Yuvaraj Sambandam
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Tristan D Clemons
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States; Department of Chemistry, Northwestern University, Evanston, IL 60208, United States
| | - Alexandra N Kolberg-Edelbrock
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, United States
| | - Jie He
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - James Mathew
- Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States; Department of Microbiology and Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Zheng Jenny Zhang
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States; Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Joseph P Leventhal
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States; Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Lorenzo Gallon
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States; Department of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Liam C Palmer
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States; Department of Chemistry, Northwestern University, Evanston, IL 60208, United States.
| | - Samuel I Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, United States; Department of Chemistry, Northwestern University, Evanston, IL 60208, United States; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, United States; Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, United States; Department of Medicine, Northwestern University, Chicago, IL 60611, United States.
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3
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Pavlović RZ, Finnegan TJ, Metlushko A, Hansen AL, Waudby CA, Wang X, Hoefer N, McComb DW, Pavić A, Plackić N, Novaković J, Bradić J, Jeremić N, Jakovljević V, Šmit B, Matić S, Alvarez-Saavedra MA, Čapo I, Moore CE, Stupp SI, Badjić JD. Dynamic and Assembly Characteristics of Deep-Cavity Basket Acting as a Host for Inclusion Complexation of Mitoxantrone in Biotic and Abiotic Systems. Chemistry 2023; 29:e202303374. [PMID: 37851342 DOI: 10.1002/chem.202303374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 10/19/2023]
Abstract
We describe the preparation, dynamic, assembly characteristics of vase-shaped basket 13- along with its ability to form an inclusion complex with anticancer drug mitoxantrone in abiotic and biotic systems. This novel cavitand has a deep nonpolar pocket consisting of three naphthalimide sides fused to a bicyclic platform at the bottom while carrying polar glycines at the top. The results of 1 H Nuclear Magnetic Resonance (NMR), 1 H NMR Chemical Exchange Saturation Transfer (CEST), Calorimetry, Hybrid Replica Exchange Molecular Dynamics (REMD), and Microcrystal Electron Diffraction (MicroED) measurements are in line with 1 forming dimer [12 ]6- , to be in equilibrium with monomers 1(R) 3- (relaxed) and 1(S) 3- (squeezed). Through simultaneous line-shape analysis of 1 H NMR data, kinetic and thermodynamic parameters characterizing these equilibria were quantified. Basket 1(R) 3- includes anticancer drug mitoxantrone (MTO2+ ) in its pocket to give stable binary complex [MTO⊂1]- (Kd =2.1 μM) that can be precipitated in vitro with UV light or pH as stimuli. Both in vitro and in vivo studies showed that the basket is nontoxic, while at a higher proportion with respect to MTO it reduced its cytotoxicity in vitro. With well-characterized internal dynamics and dimerization, the ability to include mitoxantrone, and biocompatibility, the stage is set to develop sequestering agents from deep-cavity baskets.
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Affiliation(s)
- Radoslav Z Pavlović
- Department of Chemistry & Biochemistry, The Ohio State University, 1100 W. 18th Avenue, Columbus, OH, 43210, USA
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, USA
- Department of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Department of Materials Science and Engineering, Northwestern University, Chicago, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Chicago, IL, 60208, USA)
| | - Tyler J Finnegan
- Department of Chemistry & Biochemistry, The Ohio State University, 1100 W. 18th Avenue, Columbus, OH, 43210, USA
| | - Anna Metlushko
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, USA
- Department of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Department of Materials Science and Engineering, Northwestern University, Chicago, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Chicago, IL, 60208, USA)
| | - Alexandar L Hansen
- Campus Chemical Instrument Center, The Ohio State University, Columbus, OH, 43210, USA
| | | | - Xiuze Wang
- Department of Chemistry & Biochemistry, The Ohio State University, 1100 W. 18th Avenue, Columbus, OH, 43210, USA
| | - Nicole Hoefer
- Center for Electron Microscopy and Analysis, The Ohio State University, Columbus, OH, 43210, USA
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - David W McComb
- Center for Electron Microscopy and Analysis, The Ohio State University, Columbus, OH, 43210, USA
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Aleksandar Pavić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11000, Belgrade, Serbia
| | - Nikola Plackić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 11000, Belgrade, Serbia
| | - Jovana Novaković
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Center for Excellence for Redox Balance Research in Cardiovascular and Metabolic Disorders, Kragujevac, Serbia
| | - Jovana Bradić
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Center for Excellence for Redox Balance Research in Cardiovascular and Metabolic Disorders, Kragujevac, Serbia
| | - Nevena Jeremić
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Center for Excellence for Redox Balance Research in Cardiovascular and Metabolic Disorders, Kragujevac, Serbia
| | - Vladimir Jakovljević
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
- Center for Excellence for Redox Balance Research in Cardiovascular and Metabolic Disorders, Kragujevac, Serbia
| | - Biljana Šmit
- University of Kragujevac, Institute for Information Technologies, Department of Science, Kragujevac, Serbia)
| | - Sanja Matić
- University of Kragujevac, Institute for Information Technologies, Department of Science, Kragujevac, Serbia)
| | - Matias A Alvarez-Saavedra
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, USA
- Department of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Department of Materials Science and Engineering, Northwestern University, Chicago, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Chicago, IL, 60208, USA)
| | - Ivan Čapo
- Department of Histology and Embryology, Medical Faculty of Novi Sad, Novi Sad, Serbia
| | - Curtis E Moore
- Department of Chemistry & Biochemistry, The Ohio State University, 1100 W. 18th Avenue, Columbus, OH, 43210, USA
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, USA
- Department of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Department of Materials Science and Engineering, Northwestern University, Chicago, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Chicago, IL, 60208, USA)
| | - Jovica D Badjić
- Department of Chemistry & Biochemistry, The Ohio State University, 1100 W. 18th Avenue, Columbus, OH, 43210, USA
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4
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Barlek MH, Gillis DC, Egner SA, Maragos SL, Karver MR, Stupp SI, Tsihlis ND, Kibbe MR. Systemic peptide amphiphile nanofiber delivery following subcutaneous injection. Biomaterials 2023; 303:122401. [PMID: 38006645 DOI: 10.1016/j.biomaterials.2023.122401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/06/2023] [Accepted: 11/13/2023] [Indexed: 11/27/2023]
Abstract
Peptide amphiphile (PA) nanofibers have been shown to target and deliver drugs when administered via an intravenous (IV) injection. Subcutaneous administration can broaden the applicability of PA nanofibers in the medical field. The ability of PA nanofibers to be absorbed into systemic circulation after subcutaneous administration was investigated. Four PA molecules with different amino acid sequences were designed to understand the effect of nanofiber cohesion and charge on uptake. Solution small-angle X-ray scattering confirmed nanostructure morphology and provided characteristic lengths for co-assemblies. Circular dichroism and solution wide-angle X-ray scattering confirmed PA secondary structure and molecular order. PAs were co-assembled in a 95 %:5 % molar ratio of unlabeled PA to fluorescently labeled PA. Male and female Sprague Dawley rats were injected in the nape of the neck with PA co-assemblies. In vivo normalized abdominal fluorescence was measured 1-72 h after injection. PA nanofibers with a negative charge and low internal order showed the highest amount of systemic absorption at 1, 6, and 24 h. At 24 h after injection, white blood cell count decreased and glucose was elevated. Glucose began to decrease at 48 h. These data indicate that PA nanofibers can be absorbed into the systemic circulation after subcutaneous injection.
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Affiliation(s)
- Mark H Barlek
- Department of Surgery, University of Virginia, Charlottesville, VA, 22903, USA
| | - David C Gillis
- Department of Surgery, University of Virginia, Charlottesville, VA, 22903, USA
| | - Simon A Egner
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Sophia L Maragos
- Department of Surgery, University of Virginia, Charlottesville, VA, 22903, USA
| | - Mark R Karver
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, USA; Department of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Samuel I Stupp
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA; Departments of Chemistry and Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA; Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, USA; Department of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Nick D Tsihlis
- Department of Surgery, University of Virginia, Charlottesville, VA, 22903, USA; Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, 22904, USA
| | - Melina R Kibbe
- Department of Surgery, University of Virginia, Charlottesville, VA, 22903, USA; Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, 22904, USA.
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5
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Ortega JA, Sasselli IR, Boccitto M, Fleming AC, Fortuna TR, Li Y, Sato K, Clemons TD, Mckenna ED, Nguyen TP, Anderson EN, Asin J, Ichida JK, Pandey UB, Wolin SL, Stupp SI, Kiskinis E. CLIP-Seq analysis enables the design of protective ribosomal RNA bait oligonucleotides against C9ORF72 ALS/FTD poly-GR pathophysiology. Sci Adv 2023; 9:eadf7997. [PMID: 37948524 PMCID: PMC10637751 DOI: 10.1126/sciadv.adf7997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 10/11/2023] [Indexed: 11/12/2023]
Abstract
Amyotrophic lateral sclerosis and frontotemporal dementia patients with a hexanucleotide repeat expansion in C9ORF72 (C9-HRE) accumulate poly-GR and poly-PR aggregates. The pathogenicity of these arginine-rich dipeptide repeats (R-DPRs) is thought to be driven by their propensity to bind low-complexity domains of multivalent proteins. However, the ability of R-DPRs to bind native RNA and the significance of this interaction remain unclear. Here, we used computational and experimental approaches to characterize the physicochemical properties of R-DPRs and their interaction with RNA. We find that poly-GR predominantly binds ribosomal RNA (rRNA) in cells and exhibits an interaction that is predicted to be energetically stronger than that for associated ribosomal proteins. Critically, modified rRNA "bait" oligonucleotides restore poly-GR-associated ribosomal deficits and ameliorate poly-GR toxicity in patient neurons and Drosophila models. Our work strengthens the hypothesis that ribosomal function is impaired by R-DPRs, highlights a role for direct rRNA binding in mediating ribosomal dysfunction, and presents a strategy for protecting against C9-HRE pathophysiological mechanisms.
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Affiliation(s)
- Juan A. Ortega
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Department of Pathology and Experimental Therapy, Institute of Neurosciences, University of Barcelona, Barcelona 08907, Spain
| | - Ivan R. Sasselli
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián 20014, Spain
- Centro de Fisica de Materiales (CFM), CSIC-UPV/EHU, 20018 San Sebastián, Spain
| | - Marco Boccitto
- RNA Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Andrew C. Fleming
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Tyler R. Fortuna
- Department of Pediatrics, Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
| | - Yichen Li
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Kohei Sato
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Tristan D. Clemons
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Elizabeth D. Mckenna
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Thao P. Nguyen
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Eric N. Anderson
- Department of Pediatrics, Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
| | - Jesus Asin
- Department of Statistical Methods, School of Engineering, University of Zaragoza, Zaragoza 50018, Spain
| | - Justin K. Ichida
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Udai B. Pandey
- Department of Pediatrics, Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
| | - Sandra L. Wolin
- RNA Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD 21702, USA
| | - Samuel I. Stupp
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Evangelos Kiskinis
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
- Department of Neuroscience, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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6
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McClendon MT, Ji W, Greene AC, Sai H, Sangji MH, Sather NA, Chen CH, Lee SS, Katchko K, Jeong SS, Kannan A, Weiner J, Cook R, Driscoll A, Lubbe R, Chang K, Haleem M, Chen F, Qiu R, Chun D, Stock SR, Hsu WK, Hsu EL, Stupp SI. A supramolecular polymer-collagen microparticle slurry for bone regeneration with minimal growth factor. Biomaterials 2023; 302:122357. [PMID: 37879188 PMCID: PMC10897953 DOI: 10.1016/j.biomaterials.2023.122357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 10/05/2023] [Accepted: 10/15/2023] [Indexed: 10/27/2023]
Abstract
Recombinant bone morphogenetic protein-2 (BMP-2) is a potent osteoinductive growth factor that can promote bone regeneration for challenging skeletal repair and even for ectopic bone formation in spinal fusion procedures. However, serious clinical side effects related to supraphysiological dosing highlight the need for advances in novel biomaterials that can significantly reduce the amount of this biologic. Novel biomaterials could not only reduce clinical side effects but also expand the indications for use of BMP-2, while at the same time lowering the cost of such procedures. To achieve this objective, we have developed a slurry containing a known supramolecular polymer that potentiates BMP-2 signaling and porous collagen microparticles. This slurry exhibits a paste-like consistency that stiffens into an elastic gel upon implantation making it ideal for minimally invasive procedures. We carried out in vivo evaluation of the novel biomaterial in the rabbit posterolateral spine fusion model, and discovered efficacy at unprecedented ultra-low BMP-2 doses (5 μg/implant). This dose reduces the growth factor requirement by more than 100-fold relative to current clinical products. This observation is significant given that spinal fusion involves ectopic bone formation and the rabbit model is known to be predictive of human efficacy. We expect the novel biomaterial can expand BMP-2 indications for difficult cases requiring large volumes of bone formation or involving patients with underlying conditions that compromise bone regeneration.
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Affiliation(s)
- Mark T McClendon
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States
| | - Wei Ji
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States
| | - Allison C Greene
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Hiroaki Sai
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States
| | - M Hussain Sangji
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, United States
| | - Nicholas A Sather
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States
| | - Charlotte H Chen
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States
| | - Sungsoo S Lee
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States
| | - Karina Katchko
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Soyeon Sophia Jeong
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Abhishek Kannan
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Joseph Weiner
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Ralph Cook
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Adam Driscoll
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Ryan Lubbe
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Kevin Chang
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Meraaj Haleem
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Feng Chen
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States
| | - Ruomeng Qiu
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Chemistry, Northwestern University, Evanston, IL, 60208, United States
| | - Danielle Chun
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Stuart R Stock
- Department of Cell and Molecular Biology, Northwestern University, Chicago, IL, 60611, United States
| | - Wellington K Hsu
- Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Erin L Hsu
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Orthopaedic Surgery, Northwestern University, Chicago, IL, 60611, United States
| | - Samuel I Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, 60611, United States; Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, United States; Department of Chemistry, Northwestern University, Evanston, IL, 60208, United States; Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, United States; Department of Medicine, Northwestern University, Chicago, IL, 60611, United States.
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7
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Smith CS, Álvarez Z, Qiu R, Sasselli IR, Clemons T, Ortega JA, Vilela-Picos M, Wellman H, Kiskinis E, Stupp SI. Enhanced Neuron Growth and Electrical Activity by a Supramolecular Netrin-1 Mimetic Nanofiber. ACS Nano 2023; 17:19887-19902. [PMID: 37793046 DOI: 10.1021/acsnano.3c04572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Neurotrophic factors are essential not only for guiding the organization of the developing nervous system but also for supporting the survival and growth of neurons after traumatic injury. In the central nervous system (CNS), inhibitory factors and the formation of a glial scar after injury hinder the functional recovery of neurons, requiring exogenous therapies to promote regeneration. Netrin-1, a neurotrophic factor, can initiate axon guidance, outgrowth, and branching, as well as synaptogenesis, through activation of deleted in colorectal cancer (DCC) receptors. We report here the development of a nanofiber-shaped supramolecular mimetic of netrin-1 with monomers that incorporate a cyclic peptide sequence as the bioactive component. The mimetic structure was found to activate the DCC receptor in primary cortical neurons using low molar ratios of the bioactive comonomer. The supramolecular nanofibers enhanced neurite outgrowth and upregulated maturation as well as pre- and postsynaptic markers over time, resulting in differences in electrical activity similar to neurons treated with the recombinant netrin-1 protein. The results suggest the possibility of using the supramolecular structure as a therapeutic to promote regenerative bioactivity in CNS injuries.
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Affiliation(s)
- Cara S Smith
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Zaida Álvarez
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Biomaterials for Neural Regeneration, Institute for Bioengineering of Catalonia (IBEC), Barcelona 08028, Spain
| | - Ruomeng Qiu
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Ivan R Sasselli
- Centro de Fisica de Materiales (CFM), CSIC-UPV/EHU, San Sebastián 20018, Spain
| | - Tristan Clemons
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - J Alberto Ortega
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- The Ken & Ruth Davee Department of Neurology, Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Department of Pathology and Experimental Therapeutics, Institute of Neurosciences, University of Barcelona, L'Hospitalet de Llobregat, Barcelona 08907, Spain
| | - Marcos Vilela-Picos
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Haley Wellman
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Evangelos Kiskinis
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- The Ken & Ruth Davee Department of Neurology, Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
| | - Samuel I Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
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8
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Yang Y, Li C, Palmer LC, Stupp SI. Autonomous hydrogel locomotion regulated by light and electric fields. Sci Adv 2023; 9:eadi4566. [PMID: 37531426 PMCID: PMC10396299 DOI: 10.1126/sciadv.adi4566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 06/28/2023] [Indexed: 08/04/2023]
Abstract
Autonomous robotic functions in materials beyond simple stimulus-response actuation require the development of functional soft matter that can complete well-organized tasks without step-by-step control. We report the design of photo- and electroactivated hydrogels that can capture and deliver cargo, avoid obstacles, and return without external, stepwise control. By incorporating two spiropyran monomers with different chemical substituents in the hydrogel, we created chemically random networks that enabled photoregulated charge reversal and autonomous behaviors under a constant electric field. In addition, using perturbations in the electric field induced by a dielectric inhomogeneity, the hydrogel could be attracted to high dielectric constant materials and autonomously bypasses the low dielectric constant materials under the guidance of the electric field vector. The photo- and electroactive hydrogels investigated here can autonomously perform tasks using constant external stimuli, an encouraging observation for the potential development of molecularly designed intelligent robotic materials.
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Affiliation(s)
- Yang Yang
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA
| | - Chuang Li
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA
| | - Liam C Palmer
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Samuel I Stupp
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Medicine, Northwestern University, Chicago, IL 60611, USA
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9
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Qiu R, Chen F, Álvarez Z, Clemons TD, Biswas S, Karver MR, Takata N, Sai H, Peng H, Weigand S, Palmer LC, Stupp SI. Supramolecular Nanofibers Block SARS-CoV-2 Entry into Human Host Cells. ACS Appl Mater Interfaces 2023; 15:26340-26348. [PMID: 37235485 DOI: 10.1021/acsami.3c02447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection relies on its spike protein binding to angiotensin-converting enzyme 2 (ACE2) on host cells to initiate cellular entry. Blocking the interactions between the spike protein and ACE2 offers promising therapeutic opportunities to prevent infection. We report here on peptide amphiphile supramolecular nanofibers that display a sequence from ACE2 in order to promote interactions with the SARS-CoV-2 spike receptor binding domain. We demonstrate that displaying this sequence on the surface of supramolecular assemblies preserves its α-helical conformation and blocks the entry of a pseudovirus and its two variants into human host cells. We also found that the chemical stability of the bioactive structures was enhanced in the supramolecular environment relative to the unassembled peptide molecules. These findings reveal unique advantages of supramolecular peptide therapies to prevent viral infections and more broadly for other targets as well.
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Affiliation(s)
- Ruomeng Qiu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Feng Chen
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Zaida Álvarez
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Medicine, Northwestern University, 676 N. St. Clair Street, Chicago, Illinois 60611, United States
| | - Tristan D Clemons
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Suvendu Biswas
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Mark R Karver
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Nozomu Takata
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Hiroaki Sai
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Han Peng
- Department of Dermatology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States
| | - Steven Weigand
- DuPont-Northwestern-Dow Collaborative Access Team (DND-CAT) Synchrotron Research Center, Advanced Photon Source (APS)/Argonne National Laboratory 432-A004, Northwestern University, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Liam C Palmer
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, 676 N. St. Clair Street, Chicago, Illinois 60611, United States
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10
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Li C, Xiong Q, Clemons TD, Sai H, Yang Y, Hussain Sangji M, Iscen A, Palmer LC, Schatz GC, Stupp SI. Role of supramolecular polymers in photo-actuation of spiropyran hydrogels. Chem Sci 2023; 14:6095-6104. [PMID: 37293659 PMCID: PMC10246702 DOI: 10.1039/d3sc00401e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 05/14/2023] [Indexed: 06/10/2023] Open
Abstract
Supramolecular-covalent hybrid polymers have been shown to be interesting systems to generate robotic functions in soft materials in response to external stimuli. In recent work supramolecular components were found to enhance the speed of reversible bending deformations and locomotion when exposed to light. The role of morphology in the supramolecular phases integrated into these hybrid materials remains unclear. We report here on supramolecular-covalent hybrid materials that incorporate either high-aspect-ratio peptide amphiphile (PA) ribbons and fibers, or low-aspect-ratio spherical peptide amphiphile micelles into photo-active spiropyran polymeric matrices. We found that the high-aspect-ratio morphologies not only play a significant role in providing mechanical reinforcement to the matrix but also enhance photo-actuation for both light driven volumetric contraction and expansion of spiropyran hydrogels. Molecular dynamics simulations indicate that water within the high-aspect-ratio supramolecular polymers exhibits a faster draining rate as compared to those in spherical micelles, which suggests that the high-aspect-ratio supramolecular polymers effectively facilitate the transport of trapped water molecules by functioning as channels and therefore enhancing actuation of the hybrid system. Our simulations provide a useful strategy for the design of new functional hybrid architectures and materials with the aim of accelerating response and enhancing actuation by facilitating water diffusion at the nanoscopic level.
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Affiliation(s)
- Chuang Li
- Department of Polymer Science and Engineering, University of Science and Technology of China Hefei Anhui 230026 China
- Center for Bio-inspired Energy Science, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Qinsi Xiong
- Department of Chemistry, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Tristan D Clemons
- Center for Bio-inspired Energy Science, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Department of Chemistry, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Hiroaki Sai
- Center for Bio-inspired Energy Science, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Department of Materials Science and Engineering, Northwestern University 2220 Campus Drive Evanston IL 60208 USA
| | - Yang Yang
- Center for Bio-inspired Energy Science, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - M Hussain Sangji
- Center for Bio-inspired Energy Science, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Department of Biomedical Engineering, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Aysenur Iscen
- Center for Bio-inspired Energy Science, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Department of Chemical and Biological Engineering, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Liam C Palmer
- Center for Bio-inspired Energy Science, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Department of Chemistry, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Simpson Querrey Institute, Northwestern University 303 E. Superior Street Chicago IL 60611 USA
| | - George C Schatz
- Department of Chemical and Biological Engineering, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Department of Chemistry, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Samuel I Stupp
- Center for Bio-inspired Energy Science, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Department of Chemistry, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Department of Materials Science and Engineering, Northwestern University 2220 Campus Drive Evanston IL 60208 USA
- Department of Biomedical Engineering, Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Department of Medicine, Northwestern University 676 N St. Clair Chicago IL 60611 USA
- Simpson Querrey Institute, Northwestern University 303 E. Superior Street Chicago IL 60611 USA
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11
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Zhou Y, Fyrner T, Chen CH, Sather NA, Hsu EL, Stupp SI, Snead ML. Optimization of peptide amphiphile-lipid raft interaction by changing peptide amphiphile lipophilicity. Acta Biomater 2023; 164:377-386. [PMID: 37040812 DOI: 10.1016/j.actbio.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 04/13/2023]
Abstract
Various peptide amphiphile (PA) molecules have been developed to promote bone regeneration. Previously we discovered that a peptide amphiphile with a palmitic acid tail (C16) attenuates the signaling threshold of leucine-rich amelogenin peptide (LRAP)-mediated Wnt activation by increasing membrane lipid raft mobility. In the current study, we found that treatment of murine ST2 cells with an inhibitor (Nystatin) or Caveolin-1-specific siRNA abolishes the effect of C16 PA, indicating that Caveolin-mediated endocytosis is required. To determine whether hydrophobicity of the PA tail plays a role in its signaling effect, we modified the length of the tail (C12, C16 and C22) or composition (cholesterol). While shortening the tail (C12) decreased the signaling effect, lengthening the tail (C22) had no prominent effect. On the other hand, the cholesterol PA displayed a similar function as the C16 PA at the same concentration of 0.001% w/v. Interestingly, a higher concentration of C16 PA (0.005%) is cytotoxic while cholesterol PA at the higher concentration (0.005%) is well-tolerated by cells. Use of the cholesterol PA at 0.005% enabled a further reduction of the signaling threshold of LRAP to 0.20 nM, compared to 0.25nM at 0.001%. Caveolin-mediated endocytosis is also required for cholesterol PA, as evidenced by Caveolin-1 siRNA knockdown experiments. We further demonstrated that the noted effects of cholesterol PA are also observed in human bone marrow mesenchymal stem cells (BMMSCs). Taken together, these results indicate that the cholesterol PA modulates lipid raft/caveolar dynamics, thereby increasing receptor sensitivity for activation of canonical Wnt signaling. STATEMENT OF SIGNIFICANCE: : Cell signaling involves not only the binding of growth factors (or other cytokines) and cognate receptors, but also their clustering on the cell membrane. However, little or no work has been directed thus far toward investigating how biomaterials can serve to enhance growth factor or peptide signaling by increasing diffusion of cell surface receptors within membrane lipid rafts. Therefore, a better understanding of the cellular and molecular mechanism(s) operating at the material-cell membrane interface during cell signaling has the potential to change the paradigm in designing future biomaterials and regenerative medicine therapeutics. In this study, we designed a peptide amphiphile (PA) with a cholesterol tail to enhance canonical Wnt signaling by modulating lipid raft/caveolar dynamics.
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Affiliation(s)
- Yan Zhou
- Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, 2250 Alcazar St, Los Angeles, CA 90033, USA
| | - Timmy Fyrner
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Charlotte H Chen
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Nicholas A Sather
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Erin L Hsu
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Orthopaedic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Samuel I Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA; Department of Medicine, Northwestern University, Chicago, IL 60611, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Malcolm L Snead
- Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, University of Southern California, 2250 Alcazar St, Los Angeles, CA 90033, USA
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12
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Duan J, Shabbir H, Chen Z, Bi W, Liu Q, Sui J, Đorđević L, Stupp SI, Chapman KW, Martinson ABF, Li A, Schaller RD, Goswami S, Getman RB, Hupp JT. Synthetic Access to a Framework-Stabilized and Fully Sulfided Analogue of an Anderson Polyoxometalate that is Catalytically Competent for Reduction Reactions. J Am Chem Soc 2023; 145:7268-7277. [PMID: 36947559 DOI: 10.1021/jacs.2c12992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Polyoxometalates (POMs) featuring 7, 12, 18, or more redox-accessible transition metal ions are ubiquitous as selective catalysts, especially for oxidation reactions. The corresponding synthetic and catalytic chemistry of stable, discrete, capping-ligand-free polythiometalates (PTMs), which could be especially attractive for reduction reactions, is much less well developed. Among the challenges are the propensity of PTMs to agglomerate and the tendency for agglomeration to block reactant access of catalyst active sites. Nevertheless, the pervasive presence of transition metal sulfur clusters metalloenzymes or cofactors that catalyze reduction reactions and the justifiable proliferation of studies of two-dimensional (2D) metal-chalcogenides as reduction catalysts point to the promise of well-defined and controllable PTMs as reduction catalysts. Here, we report the fabrication of agglomeration-immune, reactant-accessible, capping-ligand-free CoIIMo6IVS24n- clusters as periodic arrays in a water-stable, hierarchically porous Zr-metal-organic framework (MOF; NU1K) by first installing a disk-like Anderson polyoxometalate, CoIIIMo6VIO24m-, in size-matched micropores where the siting is established via difference electron density (DED) X-ray diffraction (XRD) experiments. Flowing H2S, while heating, reduces molybdenum(VI) ions to Mo(IV) and quantitatively replaces oxygen anions with sulfur anions (S2-, HS-, S22-). DED maps show that MOF-templated POM-to-PTM conversion leaves clusters individually isolated in open-channel-connected micropores. The structure of the immobilized cluster as determined, in part, by X-ray photoelectron spectroscopy (XPS), X-ray absorption fine structure (XAFS) analysis, and pair distribution function (PDF) analysis of total X-ray scattering agrees well with the theoretically simulated structure. PTM@MOF displays both electrocatalytic and photocatalytic competency for hydrogen evolution. Nevertheless, the initially installed PTM appears to be a precatalyst, gaining competency only after the loss of ∼3 to 6 sulfurs and exposure to hydride-forming metal ions.
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Affiliation(s)
- Jiaxin Duan
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Hafeera Shabbir
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Zhihengyu Chen
- Department of Chemistry, Stony Brook University, New York 11794-3400, United States
| | - Wentuan Bi
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Qin Liu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Jingyi Sui
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Luka Đorđević
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Biomedical Engineering and Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology and Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States
| | - Karena W Chapman
- Department of Chemistry, Stony Brook University, New York 11794-3400, United States
| | - Alex B F Martinson
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Alice Li
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Richard D Schaller
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Center for Nanoscale Materials, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Subhadip Goswami
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Rachel B Getman
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Joseph T Hupp
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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13
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Kolberg-Edelbrock J, Cotey TJ, Ma SY, Kapsalis LM, Bondoc DM, Lee SR, Sai H, Smith CS, Chen F, Kolberg-Edelbrock AN, Strong ME, Stupp SI. Biomimetic Extracellular Scaffolds by Microfluidic Superstructuring of Nanofibers. ACS Biomater Sci Eng 2023; 9:1251-1260. [PMID: 36808976 DOI: 10.1021/acsbiomaterials.2c01098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The extracellular matrix is a dynamic framework bearing chemical and morphological cues that support many cellular functions, and artificial analogs with well-defined chemistry are of great interest for biomedical applications. Herein, we describe hierarchical, extracellular-matrix-mimetic microgels, termed "superbundles" (SBs) composed of peptide amphiphile (PA) supramolecular nanofiber networks created using flow-focusing microfluidic devices. We explore the effects of altered flow rate ratio and PA concentration on the ability to create SBs and develop design rules for producing SBs with both cationic and anionic PA nanofibers and gelators. We demonstrate the morphological similarities of SBs to decellularized extracellular matrices and showcase their ability to encapsulate and retain proteinaceous cargos with a wide variety of isoelectric points. Finally, we demonstrate that the novel SB morphology does not affect the well-established biocompatibility of PA gels.
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Affiliation(s)
- Jack Kolberg-Edelbrock
- Department of Materials Science and Engineering, McCormick School of Engineering, Northwestern University, 2220 Campus Drive, Room 2036, Evanston, Illinois 60208-0893, United States
- Medical Scientist Training Program, Feinberg School of Medicine, Northwestern University, 303 East Chicago Avenue, Morton 1-670, Chicago, Illinois 60611-3008, United States
| | - Thomas J Cotey
- Department of Materials Science and Engineering, McCormick School of Engineering, Northwestern University, 2220 Campus Drive, Room 2036, Evanston, Illinois 60208-0893, United States
| | - Steven Y Ma
- Department of Materials Science and Engineering, McCormick School of Engineering, Northwestern University, 2220 Campus Drive, Room 2036, Evanston, Illinois 60208-0893, United States
| | - Litsa M Kapsalis
- Department of Materials Science and Engineering, McCormick School of Engineering, Northwestern University, 2220 Campus Drive, Room 2036, Evanston, Illinois 60208-0893, United States
| | - Delaney M Bondoc
- Department of Chemistry, Weinberg College of Arts and Sciences, Northwestern University, 2145 Sheridan Road, Tech K148, Evanston, Illinois 60208-0834, United States
| | - Sieun Ruth Lee
- Department of Materials Science and Engineering, McCormick School of Engineering, Northwestern University, 2220 Campus Drive, Room 2036, Evanston, Illinois 60208-0893, United States
| | - Hiroaki Sai
- Department of Materials Science and Engineering, McCormick School of Engineering, Northwestern University, 2220 Campus Drive, Room 2036, Evanston, Illinois 60208-0893, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, Lurie 11, Chicago, Illinois 60611-3015, United States
| | - Cara S Smith
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, 2145 Sheridan Road, Tech E310, Evanston, Illinois 60208-0893, United States
| | - Feng Chen
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, Lurie 11, Chicago, Illinois 60611-3015, United States
| | - Alexandra N Kolberg-Edelbrock
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, 2145 Sheridan Road, Tech E310, Evanston, Illinois 60208-0893, United States
| | - Madison E Strong
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, 2145 Sheridan Road, Tech E310, Evanston, Illinois 60208-0893, United States
| | - Samuel I Stupp
- Department of Materials Science and Engineering, McCormick School of Engineering, Northwestern University, 2220 Campus Drive, Room 2036, Evanston, Illinois 60208-0893, United States
- Department of Chemistry, Weinberg College of Arts and Sciences, Northwestern University, 2145 Sheridan Road, Tech K148, Evanston, Illinois 60208-0834, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, Lurie 11, Chicago, Illinois 60611-3015, United States
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, 2145 Sheridan Road, Tech E310, Evanston, Illinois 60208-0893, United States
- Department of Medicine, Feinberg School of Medicine, Northwestern University, 676 North Saint Clair Street, Arkes Suite 2330, Chicago, Illinois 60611-2915, United States
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14
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Đorđević L, Sai H, Yang Y, Sather NA, Palmer LC, Stupp SI. Heterocyclic Chromophore Amphiphiles and their Supramolecular Polymerization. Angew Chem Int Ed Engl 2023; 62:e202214997. [PMID: 36861407 DOI: 10.1002/anie.202214997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 02/20/2023] [Accepted: 03/01/2023] [Indexed: 03/03/2023]
Abstract
Supramolecular polymerization of π-conjugated amphiphiles in water is an attractive approach to create functional nanostructures. Here, we report on the synthesis, optoelectronic and electrochemical properties, aqueous supramolecular polymerization, and conductivity of polycyclic aromatic dicarboximide amphiphiles. The chemical structure of the model perylene monoimide amphiphile was modified with heterocycles, essentially substituting one fused benzene ring with thiophene, pyridine or pyrrole rings. All the heterocycle-containing monomers investigated underwent supramolecular polymerization in water. Large changes to the monomeric molecular dipole moments led to nanostructures with low electrical conductivity due to diminished interactions. Although the substitution of benzene with thiophene did not notably change the monomer dipole moment, it led to crystalline nanoribbons with 20-fold higher electrical conductivity, due to enhanced dispersion interactions as a result of the presence of sulfur atoms.
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Affiliation(s)
- Luka Đorđević
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.,Department of Chemical Sciences, University of Padova, 35131, Padova, Italy
| | - Hiroaki Sai
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Yang Yang
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Nicholas A Sather
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Liam C Palmer
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Samuel I Stupp
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA.,Department of Medicine, Northwestern University, Chicago, IL 60611, USA.,Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
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15
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Đorđević L, Sai H, Yang Y, Sather NA, Palmer LC, Stupp SI. Heterocyclic Chromophore Amphiphiles and their Supramolecular Polymerization. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202214997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Luka Đorđević
- Northwestern University Department of Chemistry UNITED STATES
| | - Hiroaki Sai
- Northwestern University Center for Bio-Inspired Energy Science UNITED STATES
| | - Yang Yang
- Northwestern University Center for Bio-Inspired Energy Science UNITED STATES
| | - Nicholas A. Sather
- Northwestern University Materials Science and Engineering, Simpson Querry Institute for BioNanotechnology UNITED STATES
| | - Liam C. Palmer
- Northwestern University Chemistry, Center for Bio-Inspired Energy Science, Simpson Querrey Institute for BioNanotechnology UNITED STATES
| | - Samuel I. Stupp
- Northwestern University Materials Science and Engineering 2225 N. Campus Drive 60208 Evanston UNITED STATES
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16
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Yamaura K, Sather NA, Metlushko A, Nishimura H, Pavlović RZ, Hambright S, Ravuri SK, Philippon MJ, Stupp SI, Bahney CS, Huard J. Sustained-release losartan from peptide nanofibers promotes chondrogenesis. Front Bioeng Biotechnol 2023; 11:1122456. [PMID: 36814717 PMCID: PMC9939695 DOI: 10.3389/fbioe.2023.1122456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 01/20/2023] [Indexed: 02/09/2023] Open
Abstract
Introduction: The central pathologic feature of osteoarthritis (OA) is the progressive loss of articular cartilage, which has a limited regenerative capacity. The TGF-β1 inhibitor, losartan, can improve cartilage repair by promoting hyaline rather that fibrous cartilage tissue regeneration. However, there are concerns about side effects associated with oral administration and short retention within the joint following intra-articular injections. To facilitate local and sustained intra-articular losartan delivery we have designed an injectable peptide amphiphile (PA) nanofiber that binds losartan. The aims of this study are to characterize the release kinetics of losartan from two different PA nanofiber compositions followed by testing pro-regenerative bioactivity on chondrocytes. Methods: We tested the impact of electrostatic interactions on nanostructure morphology and release kinetics of the negatively charged losartan molecule from either a positively or negatively charged PA nanofiber. Subsequently, cytotoxicity and bioactivity were evaluated in vitro in both normal and an IL-1β-induced OA chondrocyte model using ATDC5. Results: Both nanofiber systems promoted cell proliferation but that the positively-charged nanofibers also significantly increased glycosaminoglycans production. Furthermore, gene expression analysis suggested that losartan-encapsulated nanofibers had significant anti-inflammatory, anti-degenerative, and cartilage regenerative effects by significantly blocking TGF-β1 in this in vitro system. Discussion: The results of this study demonstrated that positively charged losartan sustained-release nanofibers may be a novel and useful treatment for cartilage regeneration and OA by blocking TGF-β1.
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Affiliation(s)
- Kohei Yamaura
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States
| | - Nicholas A. Sather
- Simpson Querrey Institute for Bionanotechnology, Northwestern University, Chicago, IL, United States
| | - Anna Metlushko
- Simpson Querrey Institute for Bionanotechnology, Northwestern University, Chicago, IL, United States
| | - Haruki Nishimura
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States
| | - Radoslav Z. Pavlović
- Simpson Querrey Institute for Bionanotechnology, Northwestern University, Chicago, IL, United States
| | - Sealy Hambright
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States
| | - Sudheer K. Ravuri
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States
| | - Marc J. Philippon
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States,The Steadman Clinic, Vail, CO, United States
| | - Samuel I. Stupp
- Simpson Querrey Institute for Bionanotechnology, Northwestern University, Chicago, IL, United States
| | - Chelsea S. Bahney
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States,The Orthopaedic Trauma Institute, University of California, San Francisco (UCSF), San Francisco, CA, United States,*Correspondence: Chelsea S. Bahney, ; Johnny Huard,
| | - Johnny Huard
- Center for Regenerative and Personalized Medicine, Steadman Philippon Research Institute, Vail, CO, United States,*Correspondence: Chelsea S. Bahney, ; Johnny Huard,
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17
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Álvarez Z, Ortega JA, Sato K, Sasselli IR, Kolberg-Edelbrock AN, Qiu R, Marshall KA, Nguyen TP, Smith CS, Quinlan KA, Papakis V, Syrgiannis Z, Sather NA, Musumeci C, Engel E, Stupp SI, Kiskinis E. Artificial extracellular matrix scaffolds of mobile molecules enhance maturation of human stem cell-derived neurons. Cell Stem Cell 2023; 30:219-238.e14. [PMID: 36638801 PMCID: PMC9898161 DOI: 10.1016/j.stem.2022.12.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/04/2022] [Accepted: 12/13/2022] [Indexed: 01/13/2023]
Abstract
Human induced pluripotent stem cell (hiPSC) technologies offer a unique resource for modeling neurological diseases. However, iPSC models are fraught with technical limitations including abnormal aggregation and inefficient maturation of differentiated neurons. These problems are in part due to the absence of synergistic cues of the native extracellular matrix (ECM). We report on the use of three artificial ECMs based on peptide amphiphile (PA) supramolecular nanofibers. All nanofibers display the laminin-derived IKVAV signal on their surface but differ in the nature of their non-bioactive domains. We find that nanofibers with greater intensity of internal supramolecular motion have enhanced bioactivity toward hiPSC-derived motor and cortical neurons. Proteomic, biochemical, and functional assays reveal that highly mobile PA scaffolds caused enhanced β1-integrin pathway activation, reduced aggregation, increased arborization, and matured electrophysiological activity of neurons. Our work highlights the importance of designing biomimetic ECMs to study the development, function, and dysfunction of human neurons.
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Affiliation(s)
- Zaida Álvarez
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Medicine, Northwestern University, Chicago, IL 60611, USA; Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), Barcelona 08028, Spain
| | - J Alberto Ortega
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences, University of Barcelona, L'Hospitalet de Llobregat, Barcelona 08907, Spain
| | - Kohei Sato
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Ivan R Sasselli
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA; Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián 20014, Spain
| | - Alexandra N Kolberg-Edelbrock
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Ruomeng Qiu
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Kelly A Marshall
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Thao Phuong Nguyen
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Cara S Smith
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Katharina A Quinlan
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Vasileios Papakis
- The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Zois Syrgiannis
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Nicholas A Sather
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Chiara Musumeci
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Elisabeth Engel
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), Barcelona 08028, Spain
| | - Samuel I Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA; Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA; Department of Medicine, Northwestern University, Chicago, IL 60611, USA.
| | - Evangelos Kiskinis
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA; The Ken & Ruth Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Department of Neuroscience, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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18
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Garci A, Abid S, David AHG, Codesal MD, Đorđević L, Young RM, Sai H, Le Bras L, Perrier A, Ovalle M, Brown PJ, Stern CL, Campaña AG, Stupp SI, Wasielewski MR, Blanco V, Stoddart JF. Aggregation-Induced Emission and Circularly Polarized Luminescence Duality in Tetracationic Binaphthyl-Based Cyclophanes. Angew Chem Int Ed Engl 2022; 61:e202208679. [PMID: 35904930 PMCID: PMC9804443 DOI: 10.1002/anie.202208679] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Indexed: 01/05/2023]
Abstract
Here, we report an approach to the synthesis of highly charged enantiopure cyclophanes by the insertion of axially chiral enantiomeric binaphthyl fluorophores into the constitutions of pyridinium-based macrocycles. Remarkably, these fluorescent tetracationic cyclophanes exhibit a significant AIE compared to their neutral optically active binaphthyl precursors. A combination of theoretical calculations and time-resolved spectroscopy reveal that the AIE originates from limited torsional vibrations associated with the axes of chirality present in the chiral enantiomeric binaphthyl units and the fine-tuning of their electronic landscape when incorporated within the cyclophane structure. Furthermore, these highly charged enantiopure cyclophanes display CPL responses both in solution and in the aggregated state. This unique duality of AIE and CPL in these tetracationic cyclophanes is destined to be of major importance in future development of photonic devices and bio-applications.
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Affiliation(s)
- Amine Garci
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA
| | - Seifallah Abid
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA
| | - Arthur H. G. David
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA
| | - Marcos D. Codesal
- Departamento de Química OrgánicaFacultad de CienciasUnidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ)Universidad de Granada (UGR)Avda. Fuente Nueva S/N18071GranadaSpain
| | - Luka Đorđević
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA,Center for Bio-inspired Energy ScienceNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA
| | - Ryan M. Young
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA,Institute for Sustainability and Energy at NorthwesternNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA
| | - Hiroaki Sai
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA,Simpson Querrey Institute for BioNanotechnologyNorthwestern University303 E. Superior StreetChicagoIL 60611USA,Department of Materials Science and EngineeringNorthwestern University2220 Campus DriveEvanstonIL 60208USA
| | - Laura Le Bras
- Laboratoire Chrono-environnement (UMR 6249)Université de Bourgogne Franche-Comté16 route de Gray25030BesançonFrance
| | - Aurélie Perrier
- Chimie Paris TechPSL Research UniversityCNRSInstitute of Chemistry for Life and Health Sciences (i-CLeHS)UMR 806075005ParisFrance,Université Paris Cité75006ParisFrance
| | - Marco Ovalle
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA
| | - Paige J. Brown
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA,Institute for Sustainability and Energy at NorthwesternNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA
| | - Charlotte L. Stern
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA
| | - Araceli G. Campaña
- Departamento de Química OrgánicaFacultad de CienciasUnidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ)Universidad de Granada (UGR)Avda. Fuente Nueva S/N18071GranadaSpain
| | - Samuel I. Stupp
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA,Center for Bio-inspired Energy ScienceNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA,Simpson Querrey Institute for BioNanotechnologyNorthwestern University303 E. Superior StreetChicagoIL 60611USA,Department of Materials Science and EngineeringNorthwestern University2220 Campus DriveEvanstonIL 60208USA,Department of Biomedical EngineeringNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA,Department of MedicineNorthwestern University676N St. Clair StreetChicagoIL 60611USA
| | - Michael R. Wasielewski
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA,Institute for Sustainability and Energy at NorthwesternNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA
| | - Victor Blanco
- Departamento de Química OrgánicaFacultad de CienciasUnidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ)Universidad de Granada (UGR)Avda. Fuente Nueva S/N18071GranadaSpain
| | - J. Fraser Stoddart
- Department of ChemistryNorthwestern University2145 Sheridan RoadEvanstonIL 60208USA,School of ChemistryUniversity of New South WalesSydneyNSW 2052Australia,Stoddart Institute of Molecular ScienceDepartment of ChemistryZhejiang UniversityHangzhou310027China,ZJU-Hangzhou Global Scientific and Technological Innovation CenterHangzhou311215China
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19
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Dannenhoffer A, Sai H, Bruckner EP, Ðorđević L, Narayanan A, Yang Y, Ma X, Palmer LC, Stupp SI. Metallurgical alloy approach to two-dimensional supramolecular materials. Chem 2022. [DOI: 10.1016/j.chempr.2022.09.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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20
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Yuan SC, Lewis JA, Sai H, Weigand SJ, Palmer LC, Stupp SI. Peptide Sequence Determines Structural Sensitivity to Supramolecular Polymerization Pathways and Bioactivity. J Am Chem Soc 2022; 144:16512-16523. [PMID: 36049084 DOI: 10.1021/jacs.2c05759] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Pathways in supramolecular polymerization traverse different regions of the system's energy landscape, affecting not only their architectures and internal structure but also their functions. We report here on the effects of pathway selection on polymerization for two isomeric peptide amphiphile monomers with amino acid sequences AAEE and AEAE. We subjected the monomers to five different pathways that varied in the order they were exposed to electrostatic screening by electrolytes and thermal annealing. We found that introducing electrostatic screening of E residues before annealing led to crystalline packing of AAEE monomers. Electrostatic screening decreased intermolecular repulsion among AAEE monomers thus promoting internal order within the supramolecular polymers, while subsequent annealing brought them closer to thermodynamic equilibrium with enhanced β-sheet secondary structure. In contrast, supramolecular polymerization of AEAE monomers was less pathway dependent, which we attribute to side-chain dimerization. Regardless of the pathway, the internal structure of AEAE nanostructures had limited internal order and moderate β-sheet structure. These supramolecular polymers generated hydrogels with lower porosity and greater bulk mechanical strength than those formed by the more cohesive AAEE polymers. The combination of dynamic, less ordered internal structure and bulk strength of AEAE networks promoted strong cell-material interactions in adherent epithelial-like cells, evidenced by increased cytoskeletal remodeling and cell spreading. The highly ordered AAEE nanostructures formed porous hydrogels with inferior bulk mechanical properties and weaker cell-material interactions. We conclude that pathway sensitivity in supramolecular synthesis, and therefore structure and function, is highly dependent on the nature of dominant interactions driving polymerization.
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Affiliation(s)
- Shelby C Yuan
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Jacob A Lewis
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Hiroaki Sai
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States.,Center for Bio-Inspired Energy Science, Northwestern University, Evanston, Illinois 60208, United States
| | - Steven J Weigand
- DuPont-Northwestern-Dow Collaborative Access Team Synchrotron Research Center, Northwestern University, Advanced Photon Source/Argonne National Laboratory 432-A004, Argonne, Illinois 60439, United States
| | - Liam C Palmer
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States.,Center for Bio-Inspired Energy Science, Northwestern University, Evanston, Illinois 60208, United States.,Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States.,Center for Bio-Inspired Energy Science, Northwestern University, Evanston, Illinois 60208, United States.,Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.,Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States
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21
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Martin S, Deng J, Searl T, Ohlander S, Harrington DA, Stupp SI, Dynda D, McVary KT, Podlasek CA. Sonic Hedgehog Signaling in Primary Culture of Human Corpora Cavernosal Tissue From Prostatectomy, Diabetic, and Peyronie's Patients. J Sex Med 2022; 19:1228-1242. [PMID: 35752559 PMCID: PMC9329230 DOI: 10.1016/j.jsxm.2022.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/21/2022] [Accepted: 04/24/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Cavernous nerve (CN) injury causes penile remodeling, including smooth muscle apoptosis and increased collagen, which results in erectile dysfunction (ED), and prevention of this remodeling is critical for novel ED therapy development. AIM We developed 2 peptide amphiphile (PA) hydrogel delivery vehicles for Sonic hedgehog (SHH) protein to the penis and CN, which effectively suppress penile distrophic remodeling (apoptosis and fibrosis), in vivo in a rat CN injury model, and the aim of this study is to determine if SHH PA can be used to regenerate human corpora cavernosal smooth muscle deriving from multiple ED origins. METHODS Corpora cavernosal tissue was obtained from prostatectomy, diabetic, hypertension, cardiovascular disease and Peyronie's (control) patients (n = 21). Primary cultures (n = 21) were established, and corpora cavernosal cells were treated with SHH protein, MSA (control), 5E1 SHH inhibitor, and PBS (control). Growth was quantified by counting the number of cells at 3-4 days. Statistics were performed by ANOVA with Scheffe's post hoc test. Concentration of SHH protein for maximal growth was optimized, and a more active SHH protein examined. OUTCOMES Cultures were characterized by immunohistochemical analysis with ACTA2, CD31, nNOS and P4HB, and smooth muscle was quantified in comparison to DAPI. RESULTS Cultures established were >97% smooth muscle. SHH protein increased growth of smooth muscle cells from prostatectomy, diabetic, and Peyronie's patients in a similar manner (49%-51%), and SHH inhibition decreased growth (20%-33%). There was no difference in growth using 25 ug and 10 ug SHH protein, suggesting a threshold concentration of SHH protein above which smooth muscle growth is enhanced. A more active lipid modified SHH peptide further enhanced growth (15%), indicating a more robust growth response. SHH increased growth in smooth muscle cells from hypertension (37%) and cardiovascular disease (32%) patients. SHH protein increased growth under normal and high glucose conditions, suggesting that high glucose conditions that may be present in under controlled diabetic patients would not detract from SHH regenerative capacity. CLINICAL IMPLICATIONS SHH PA would be beneficial to enhance smooth muscle regeneration in patients with ED of multiple etiologies. STRENGTHS AND LIMITATIONS Understanding how human corpora cavernosal tissue responds to SHH treatment is critical for clinical translation of SHH PA to ED patients. CONCLUSION Corpora cavernosal smooth muscle from all ED patients responded to SHH treatment with increased growth. Stupp, SI. Sonic Hedgehog Signaling in Primary Culture of Human Corpora Cavernosal Tissue From Prostatectomy, Diabetic, and Peyronie's Patients. J Sex Med 2022;19:1228-1242.
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22
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Garci A, Abid S, David AHG, Codesal MD, Đorđević L, Young RM, sai H, le_bras L, pineau AP, ovalle M, brown P, Stern CL, Campaña AG, Stupp SI, Wasielewski MR, blancos V, Stoddart F. Aggregation Induced Emission and Circularly Polarized Luminescence Duality in Tetracationic Binaphthyl‐Based Cyclophanes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Amine Garci
- Northwestern University Department of Chemistry Department of Chemistry UNITED STATES
| | - Seifallah Abid
- Northwestern University Department of Chemistry Department of Chemistry UNITED STATES
| | - Arthur H. G. David
- Northwestern University Department of Chemistry Department of Chemistry UNITED STATES
| | - Marcos D Codesal
- Universidad de Granada Departamento de Química Orgánica Avda. Fuente Nueva S/N 18071 Granada SPAIN
| | - Luka Đorđević
- Northwestern University Department of Chemistry Department of Chemistry UNITED STATES
| | - Ryan M Young
- Northwestern University Department of Chemistry Department of Chemistry UNITED STATES
| | - hiroaki sai
- Northwestern University Department of Chemistry Department of Chemistry UNITED STATES
| | - laura le_bras
- Université de Franche-Comté: Universite de Franche-Comte Department of Chemistry 16 route de Gray, 25030 Besançon FRANCE
| | - aurelie perrier pineau
- Chimie ParisTech - PSL: Ecole nationale superieure de chimie de Paris Department of Chemistry FRANCE
| | - marco ovalle
- Northwestern University Department of Chemistry Department of Chemistry UNITED STATES
| | - paige brown
- Northwestern University Department of Chemistry Department of Chemistry UNITED STATES
| | - Charlotte L Stern
- Northwestern University Department of Chemistry Department of Chemistry UNITED STATES
| | | | - Samuel I Stupp
- Northwestern University Department of Chemistry Department of Chemistry UNITED STATES
| | - Michael R Wasielewski
- Northwestern University Department of Chemistry Department of Chemistry UNITED STATES
| | - victor blancos
- Universidad de Granada Departamento de Química Orgánica SPAIN
| | - Fraser Stoddart
- Northwestern University Department of Chemistry 2145 Sheridan Road 60208-3113 EVANSTON UNITED STATES
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23
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Bruckner EP, Curk T, Đorđević L, Wang Z, Yang Y, Qiu R, Dannenhoffer AJ, Sai H, Kupferberg J, Palmer LC, Luijten E, Stupp SI. Hybrid Nanocrystals of Small Molecules and Chemically Disordered Polymers. ACS Nano 2022; 16:8993-9003. [PMID: 35588377 DOI: 10.1021/acsnano.2c00266] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Organic crystals formed by small molecules can be highly functional but are often brittle or insoluble structures with limited possibilities for use or processing from a liquid phase. A possible solution is the nanoscale integration of polymers into organic crystals without sacrificing long-range order and therefore function. This enables the organic crystals to benefit from the advantageous mechanical and chemical properties of the polymeric component. We report here on a strategy in which small molecules cocrystallize with side chains of chemically disordered polymers to create hybrid nanostructures containing a highly ordered lattice. Synchrotron X-ray scattering, absorption spectroscopy, and coarse-grained molecular dynamics simulations reveal that the polymer backbones form an "exo-crystalline" layer of disordered chains that wrap around the nanostructures, becoming a handle for interesting properties. The morphology of this "hybrid bonding polymer" nanostructure is dictated by the competition between the polymers' entropy and the enthalpy of the lattice allowing for control over the aspect ratio of the nanocrystal by changing the degree of polymer integration. We observed that nanostructures with an exo-crystalline layer of polymer exhibit enhanced fracture strength, self-healing capacity, and dispersion in water, which benefits their use as light-harvesting assemblies in photocatalysis. Guided by computation, future work could further explore these hybrid nanostructures as components for functional materials.
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Affiliation(s)
- Eric P Bruckner
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Tine Curk
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Luka Đorđević
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Ziwei Wang
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, United States
| | - Yang Yang
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Ruomeng Qiu
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Adam J Dannenhoffer
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Hiroaki Sai
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Jacob Kupferberg
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Liam C Palmer
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Erik Luijten
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, United States
- Department of Engineering Sciences and Applied Mathematics, Northwestern University, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
- Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
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24
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Ledford BT, Akerman AW, Sun K, Gillis DC, Weiss JM, Vang J, Willcox S, Clemons TD, Sai H, Qiu R, Karver MR, Griffith JD, Tsihlis ND, Stupp SI, Ikonomidis JS, Kibbe MR. Peptide Amphiphile Supramolecular Nanofibers Designed to Target Abdominal Aortic Aneurysms. ACS Nano 2022; 16:7309-7322. [PMID: 35504018 PMCID: PMC9733406 DOI: 10.1021/acsnano.1c06258] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
An abdominal aortic aneurysm (AAA) is a localized dilation of the aorta located in the abdomen that poses a severe risk of death when ruptured. The cause of AAA is not fully understood, but degradation of medial elastin due to elastolytic matrix metalloproteinases is a key step leading to aortic dilation. Current therapeutic interventions are limited to surgical repair to prevent catastrophic rupture. Here, we report the development of injectable supramolecular nanofibers using peptide amphiphile molecules designed to localize to AAA by targeting fragmented elastin, matrix metalloproteinase 2 (MMP-2), and membrane type 1 matrix metalloproteinase. We designed four targeting peptide sequences from X-ray crystallographic data and incorporated them into PA molecules via solid phase peptide synthesis. After coassembling targeted and diluent PAs at different molar ratios, we assessed their ability to form nanofibers using transmission electron microscopy and to localize to AAA in male and female Sprague-Dawley rats using light sheet fluorescence microscopy. We found that three formulations of the PA nanofibers were able to localize to AAA tissue, but the MMP-2 targeting PA substantially outperformed the other nanofibers. Additionally, we demonstrated that the MMP-2 targeting PA nanofibers had an optimal dose of 5 mg (∼12 mg/kg). Our results show that there was not a significant difference in targeting between male and female Sprague-Dawley rats. Given the ability of the MMP-2 targeting PA nanofiber to localize to AAA tissue, future studies will investigate potential diagnostic and targeted drug delivery applications for AAA.
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Affiliation(s)
- Benjamin T. Ledford
- Department of Surgery, University of Virginia, Charlottesville, VA 22903, USA
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Adam W. Akerman
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Kui Sun
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - David C. Gillis
- Department of Surgery, University of Virginia, Charlottesville, VA 22903, USA
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Jenna M. Weiss
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Johnny Vang
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Smaranda Willcox
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Tristan D. Clemons
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Hiroaki Sai
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Ruomeng Qiu
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Mark R. Karver
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Jack D. Griffith
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Nick D. Tsihlis
- Department of Surgery, University of Virginia, Charlottesville, VA 22903, USA
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22904, USA
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Samuel I. Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Medicine, Northwestern University, Chicago, IL 60611, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - John S. Ikonomidis
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Melina R. Kibbe
- Department of Surgery, University of Virginia, Charlottesville, VA 22903, USA
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22904, USA
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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25
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Qiu R, Sasselli IR, Álvarez Z, Sai H, Ji W, Palmer LC, Stupp SI. Supramolecular Copolymers of Peptides and Lipidated Peptides and Their Therapeutic Potential. J Am Chem Soc 2022; 144:5562-5574. [PMID: 35296133 DOI: 10.1021/jacs.2c00433] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Supramolecular peptide chemistry offers a versatile strategy to create chemical systems useful as new biomaterials with potential to deliver nearly 1000 known candidate peptide therapeutics or integrate other types of bioactivity. We report here on the co-assembly of lipidated β-sheet-forming peptides with soluble short peptides, yielding supramolecular copolymers with various degrees of internal order. At low peptide concentrations, the co-monomer is protected by lodging within internal aqueous compartments and stabilizing internal β-sheets formed by the lipidated peptides. At higher concentrations, the peptide copolymerizes with the lipidated peptide and disrupts the β-sheet secondary structure. The thermodynamic metastability of the co-assembly in turn leads to the spontaneous release of peptide monomers and thus serves as a potential mechanism for drug delivery. We demonstrated the function of these supramolecular systems using a drug candidate for Alzheimer's disease and found that the copolymers enhance neuronal cell viability when the soluble peptide is released from the assemblies.
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Affiliation(s)
- Ruomeng Qiu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Ivan R Sasselli
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States
| | - Zaida Álvarez
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States.,Department of Medicine, Northwestern University, 676 N. St. Clair Street, Chicago, Illinois 60611, United States
| | - Hiroaki Sai
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Wei Ji
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States
| | - Liam C Palmer
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior Street, Chicago, Illinois 60611, United States.,Department of Medicine, Northwestern University, 676 N. St. Clair Street, Chicago, Illinois 60611, United States.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States.,Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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26
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Nap RJ, Qiao B, Palmer LC, Stupp SI, Olvera de la Cruz M, Szleifer I. Acid-Base Equilibrium and Dielectric Environment Regulate Charge in Supramolecular Nanofibers. Front Chem 2022; 10:852164. [PMID: 35372273 PMCID: PMC8965714 DOI: 10.3389/fchem.2022.852164] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/02/2022] [Indexed: 11/13/2022] Open
Abstract
Peptide amphiphiles are a class of molecules that can self-assemble into a variety of supramolecular structures, including high-aspect-ratio nanofibers. It is challenging to model and predict the charges in these supramolecular nanofibers because the ionization state of the peptides are not fixed but liable to change due to the acid-base equilibrium that is coupled to the structural organization of the peptide amphiphile molecules. Here, we have developed a theoretical model to describe and predict the amount of charge found on self-assembled peptide amphiphiles as a function of pH and ion concentration. In particular, we computed the amount of charge of peptide amphiphiles nanofibers with the sequence C16 − V2A2E2. In our theoretical formulation, we consider charge regulation of the carboxylic acid groups, which involves the acid-base chemical equilibrium of the glutamic acid residues and the possibility of ion condensation. The charge regulation is coupled with the local dielectric environment by allowing for a varying dielectric constant that also includes a position-dependent electrostatic solvation energy for the charged species. We find that the charges on the glutamic acid residues of the peptide amphiphile nanofiber are much lower than the same functional group in aqueous solution. There is a strong coupling between the charging via the acid-base equilibrium and the local dielectric environment. Our model predicts a much lower degree of deprotonation for a position-dependent relative dielectric constant compared to a constant dielectric background. Furthermore, the shape and size of the electrostatic potential as well as the counterion distribution are quantitatively and qualitatively different. These results indicate that an accurate model of peptide amphiphile self-assembly must take into account charge regulation of acidic groups through acid–base equilibria and ion condensation, as well as coupling to the local dielectric environment.
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Affiliation(s)
- Rikkert J. Nap
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, United States
- Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, United States
- *Correspondence: Rikkert J. Nap, ; Igal Szleifer,
| | - Baofu Qiao
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, United States
| | - Liam C. Palmer
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, United States
- Department of Chemistry, Northwestern University, Evanston, IL, United States
| | - Samuel I. Stupp
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, United States
- Department of Chemistry, Northwestern University, Evanston, IL, United States
- Department of Medicine, Northwestern University, Chicago, IL, United States
| | - Monica Olvera de la Cruz
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, United States
- Department of Chemistry, Northwestern University, Evanston, IL, United States
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL, United States
- Department of Physics and Astronomy, Northwestern University, Evanston, IL, United States
- Center for Computation and Theory of Soft Materials, Northwestern University, Evanston, IL, United States
| | - Igal Szleifer
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, United States
- Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, United States
- Department of Chemistry, Northwestern University, Evanston, IL, United States
- *Correspondence: Rikkert J. Nap, ; Igal Szleifer,
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27
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Aggarwal A, Li C, Stupp SI, Olvera de la Cruz M. Controlling the shape morphology of origami-inspired photoresponsive hydrogels. Soft Matter 2022; 18:2193-2202. [PMID: 35226038 PMCID: PMC8989053 DOI: 10.1039/d1sm01751a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The concept of origami has influenced the development of responsive materials that can mimic complex functions performed by living organisms. An ultimate goal is to discover and design soft materials that can be remotely actuated into diverse structures. To achieve this goal, we design and synthesize here a light-responsive spiropyran hydrogel system that can display dynamic shape changes upon irradiation with local light. We use a continuum polymer model to analyze the behavior of the constructed photoactive hydrogel, which is in good agreement with the experimental results. We explore different buckling modalities and patterns in a different range of parameters. The synthesis and fabrication of these materials demonstrate that the theoretical model can be used to drive the development of responsive photoactive systems.
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Affiliation(s)
- Aaveg Aggarwal
- Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA.
| | - Chuang Li
- Center for Bio-inspired Energy Science, Northwestern University, Evanston, IL 60208, USA.
| | - Samuel I Stupp
- Center for Bio-inspired Energy Science, Northwestern University, Evanston, IL 60208, USA.
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Medicine, Northwestern University, Chicago, IL 60611, USA
- Simpson Querrey Institute, Northwestern University, Chicago, IL 60611, USA
| | - Monica Olvera de la Cruz
- Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA.
- Center for Bio-inspired Energy Science, Northwestern University, Evanston, IL 60208, USA.
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA
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28
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Dumele O, Đorđević L, Sai H, Cotey TJ, Sangji MH, Sato K, Dannenhoffer AJ, Stupp SI. Photocatalytic Aqueous CO 2 Reduction to CO and CH 4 Sensitized by Ullazine Supramolecular Polymers. J Am Chem Soc 2022; 144:3127-3136. [PMID: 35143726 DOI: 10.1021/jacs.1c12155] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
There has been rapid progress on the chemistry of supramolecular scaffolds that harness sunlight for aqueous photocatalytic production of hydrogen. However, great efforts are still needed to develop similar photosynthetic systems for the great challenge of CO2 reduction especially if they avoid the use of nonabundant metals. This work investigates the synthesis of supramolecular polymers capable of sensitizing catalysts that require more negative potentials than proton reduction. The monomers are chromophore amphiphiles based on a diareno-fused ullazine core that undergo supramolecular polymerization in water to create entangled nanoscale fibers. Under 450 nm visible light these fibers sensitize a dinuclear cobalt catalyst for CO2 photoreduction to generate carbon monoxide and methane using a sacrificial electron donor. The supramolecular photocatalytic system can generate amounts of CH4 comparable to those obtained with a precious metal-based [Ru(phen)3](PF6)2 sensitizer and, in contrast to Ru-based catalysts, retains photocatalytic activity in all aqueous media over 6 days. The present study demonstrates the potential of tailored supramolecular polymers as renewable energy and sustainability materials.
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Affiliation(s)
- Oliver Dumele
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Luka Đorđević
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.,Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Hiroaki Sai
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Thomas J Cotey
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - M Hussain Sangji
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Kohei Sato
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - Adam J Dannenhoffer
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.,Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States.,Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States
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29
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Sasselli IR, Syrgiannis Z, Sather NA, Palmer LC, Stupp SI. Modeling Interactions within and between Peptide Amphiphile Supramolecular Filaments. J Phys Chem B 2022; 126:650-659. [PMID: 35029997 DOI: 10.1021/acs.jpcb.1c09258] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Many peptides are able to self-assemble into one-dimensional (1D) nanostructures, such as cylindrical fibers or ribbons of variable widths, but the relationship between the morphology of 1D objects and their molecular structure is not well understood. Here, we use coarse-grained molecular dynamics (CG-MD) simulations to study the nanostructures formed by self-assembly of different peptide amphiphiles (PAs). The results show that ribbons are hierarchical superstructures formed by laterally assembled cylindrical fibers. Simulations starting from bilayer structures demonstrate the formation of filaments, whereas other simulations starting from filaments indicate varying degrees of interaction among them depending on chemical structure. These interactions are verified by observations using atomic force microscopy of the various systems. The interfilament interactions are predicted to be strongest in supramolecular assemblies that display hydrophilic groups on their surfaces, while those with hydrophobic ones are predicted to interact more weakly as confirmed by viscosity measurements. The simulations also suggest that peptide amphiphiles with hydrophobic termini bend to reduce their interfacial energy with water, which may explain why these systems do not collapse into superstructures of bundled filaments. The simulations suggest that future experiments will need to address mechanistic questions about the self-assembly of these systems into hierarchical structures, namely, the preformation of interactive filaments vs equilibration of large assemblies into superstructures.
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Affiliation(s)
- Ivan R Sasselli
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th Floor, Chicago, Illinois 60611, United States.,Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Zois Syrgiannis
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th Floor, Chicago, Illinois 60611, United States.,Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Nicholas A Sather
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th Floor, Chicago, Illinois 60611, United States.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Liam C Palmer
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th Floor, Chicago, Illinois 60611, United States.,Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 East Superior Street, 11th Floor, Chicago, Illinois 60611, United States.,Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States.,Department of Medicine, Northwestern University, 676 N St. Clair, Chicago, Illinois 60611, United States.,Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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30
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Abstract
Self-assembly of high-aspect-ratio filaments containing β-sheets has attracted much attention due to potential use in bioengineering and biomedicine. However, precisely predicting the assembled morphologies remains a grand challenge because of insufficient understanding of the self-assembly process. We employed an atomistic model to study the self-assembly of peptide amphiphiles (PAs) containing valine-glutamic acid (VE) dimeric repeats. By changing of the sequence length, the assembly morphology changes from flat ribbon to left-handed twisted ribbon, implying a relationship between β-sheet twist and strength of interstrand hydrogen bonds. The calculations are used to quantify this relationship including both magnitude and sign of the ribbon twist angle. Interestingly, a change in chirality is observed when we introduce the RGD epitope into the C-terminal of VE repeats, suggesting arginine and glycine's role in suppressing right-handed β-sheet formation. This study provides insight into the relationship between β-sheet twist and self-assembled nanostructures including a possible design rule for PA self-assembly.
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Affiliation(s)
- Qinsi Xiong
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Samuel I Stupp
- Department of Chemistry, Center for BioInspired Energy Science, and Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - George C Schatz
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
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31
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Álvarez Z, Kolberg-Edelbrock AN, Sasselli IR, Ortega JA, Qiu R, Syrgiannis Z, Mirau PA, Chen F, Chin SM, Weigand S, Kiskinis E, Stupp SI. Bioactive scaffolds with enhanced supramolecular motion promote recovery from spinal cord injury. Science 2021; 374:848-856. [PMID: 34762454 DOI: 10.1126/science.abh3602] [Citation(s) in RCA: 101] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Z Álvarez
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,Department of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - A N Kolberg-Edelbrock
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - I R Sasselli
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - J A Ortega
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,The Ken & Ruth Davee Department of Neurology, Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - R Qiu
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Z Syrgiannis
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - P A Mirau
- Materials and Manufacturing Directorate, Nanostructured and Biological Materials Branch, Air Force Research Laboratories, Wright-Patterson AFB, OH 45433, USA
| | - F Chen
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - S M Chin
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - S Weigand
- DuPont-Northwestern-Dow Collaborative Access Team Synchrotron Research Center, Northwestern University, DND-CAT, Argonne, IL 60439, USA
| | - E Kiskinis
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,The Ken & Ruth Davee Department of Neurology, Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - S I Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.,Department of Medicine, Northwestern University, Chicago, IL 60611, USA.,Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.,Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
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Arcudi F, Đorđević L, Nagasing B, Stupp SI, Weiss EA. Quantum Dot-Sensitized Photoreduction of CO 2 in Water with Turnover Number > 80,000. J Am Chem Soc 2021; 143:18131-18138. [PMID: 34664969 DOI: 10.1021/jacs.1c06961] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Climate change and global energy demands motivate the search for sustainable transformations of carbon dioxide (CO2) to storable liquid fuels. Photocatalysis is a pathway for direct conversion of CO2 to CO, one step within light-powered reaction networks that could, if efficient enough, transform the solar energy conversion landscape. To date, the best performing photocatalytic CO2 reduction systems operate in nonaqueous solvents, but technologically viable solar fuels networks will likely operate in water. Here we demonstrate catalytic photoreduction of CO2 to CO in pure water at pH 6-7 with an unprecedented combination of performance parameters: turnover number (TON(CO)) = 72,484-84,101, quantum yield (QY) = 0.96-3.39%, and selectivity (SCO) > 99%, using CuInS2 colloidal quantum dots (QDs) as photosensitizers and a Co-porphyrin catalyst. At higher catalyst concentration, the system reaches QY = 3.53-5.23%. The performance of the QD-driven system greatly exceeds that of the benchmark aqueous system (926 turnovers with a quantum yield of 0.81% and selectivity of 82%), due primarily to (i) electrostatic attraction of the QD to the catalyst, which promotes fast multielectron delivery and colocalization of protons, CO2, and catalyst at the source of photoelectrons, and (ii) termination of the QD's ligand shell with free amines, which capture CO2 as carbamic acid that serves as a reservoir for CO2, effectively increasing its solubility in water, and lowers the onset potential for catalytic CO2 reduction by the Co-porphyrin. The breakthrough efficiency achieved in this work represents a nonincremental step in the realization of reaction networks for direct solar-to-fuel conversion.
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Affiliation(s)
- Francesca Arcudi
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.,Center for Bio-Inspired Energy Science, Northwestern University, Chicago, Illinois 60611, United States
| | - Luka Đorđević
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.,Center for Bio-Inspired Energy Science, Northwestern University, Chicago, Illinois 60611, United States
| | - Benjamin Nagasing
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.,Center for Bio-Inspired Energy Science, Northwestern University, Chicago, Illinois 60611, United States.,Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States.,Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
| | - Emily A Weiss
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.,Center for Bio-Inspired Energy Science, Northwestern University, Chicago, Illinois 60611, United States.,Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
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Godbe JM, Freeman R, Lewis JA, Sasselli IR, Sangji MH, Stupp SI. Hydrogen Bonding Stiffens Peptide Amphiphile Supramolecular Filaments by Aza-Glycine Residues. Acta Biomater 2021; 135:87-99. [PMID: 34481055 DOI: 10.1016/j.actbio.2021.08.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 12/30/2022]
Abstract
Peptide amphiphiles (PAs) are a class of molecules comprised of short amino acid sequences conjugated to hydrophobic moieties that may exhibit self-assembly in water into supramolecular structures. We investigate here how mechanical properties of hydrogels formed by PA supramolecular nanofibers are affected by hydrogen bond densities within their internal structure by substituting glycine for aza-glycine (azaG) residues. We found that increasing the number of PA molecules that contain azaG up to 5 mol% in PA supramolecular nanofibers increases their persistence length fivefold and decreases their diffusion coefficients as measured by fluorescence recovery after photobleaching. When these PAs are used to create hydrogels, their bulk storage modulus (G') was found to increase as azaG PA content in the supramolecular assemblies increases up to a value of 10 mol% and beyond this value a decrease was observed, likely due to diminished levels of nanofiber entanglement in the hydrogels as a direct result of increased supramolecular rigidity. Interestingly, we found that the bioactivity of the scaffolds toward dopaminergic neurons derived from induced pluripotent stem cells can be enhanced directly by persistence length independently of storage modulus. We hypothesize that this is due to interactions between the cells and the extracellular environment across different size scales: from filopodia adhering to individual nanofiber bundles to cell adhesion sites that interact with the hydrogel as a bulk substrate. Fine tuning of hydrogen bond density in self-assembling peptide biomaterials such as PAs provides an approach to control nanoscale stiffness as part of an overall strategy to optimize bioactivity in these supramolecular systems. supramolecular biomaterials. STATEMENT OF SIGNIFICANCE: Hydrogen bonding is an important driving force for the self-assembly of peptides in both biological and artificial systems. Here, we increase the amount of hydrogen bonding within self-assembled peptide amphiphile (PA) nanofibers by substituting glycine for an aza-glycine (azaG). We show that increasing the molar concentration of azaG increases the internal order of individual nanofibers and increases their persistence length. We also show that these changes are sufficient to increase survival and tyrosine hydroxylase expression in induced pluripotent stem cell-derived dopaminergic neurons cultured in 3D gels made of these materials. Our strategy of tuning the number of hydrogen bonds in a supramolecular assembly provides mechanical customization for 3D cell culture and tissue engineering.
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Affiliation(s)
- Jacqueline M Godbe
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior St, Chicago, Illinois 60611, United States; Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Ronit Freeman
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior St, Chicago, Illinois 60611, United States
| | - Jacob A Lewis
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior St, Chicago, Illinois 60611, United States; Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Ivan R Sasselli
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - M Hussain Sangji
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E. Superior St, Chicago, Illinois 60611, United States; Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States; Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States; Department of Medicine, Northwestern University, 676 N St Clair St Suite 1600, Chicago, IL 60611, United States; Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States.
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Barlek M, Karver M, Sun K, Gillis DC, Stupp SI, Tsihlis N, Kibbe MR. Targeted Delivery of a Nanotherapeutic to Prevent Arterial Restenosis in a Diabetic Environment. J Am Coll Surg 2021. [DOI: 10.1016/j.jamcollsurg.2021.07.656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Martin S, Harrington DA, Ohlander S, Stupp SI, McVary KT, Podlasek CA. Peptide amphiphile nanofiber hydrogel delivery of Sonic hedgehog protein to the penis and cavernous nerve suppresses intrinsic and extrinsic apoptotic signaling mechanisms, which are an underlying cause of erectile dysfunction. Nanomedicine 2021; 37:102444. [PMID: 34314869 PMCID: PMC8464506 DOI: 10.1016/j.nano.2021.102444] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 06/14/2021] [Accepted: 07/04/2021] [Indexed: 02/01/2023]
Abstract
Erectile dysfunction (ED) is a common and debilitating condition with high impact on quality of life. An underlying cause of ED is apoptosis of penile smooth muscle, which occurs with cavernous nerve injury, in prostatectomy, diabetic and aging patients. We are developing peptide amphiphile (PA) nanofiber hydrogels as an in vivo delivery vehicle for Sonic hedgehog protein to the penis and cavernous nerve to prevent the apoptotic response. We examine two important aspects required for clinical application of the biomaterials: if SHH PA suppresses intrinsic (caspase 9) and extrinsic (caspase 8) apoptotic mechanisms, and if suppressing one apoptotic mechanism forces apoptosis to occur via a different mechanism. We show that SHH PA suppresses both caspase 9 and 8 apoptotic mechanisms, and suppressing caspase 9 did not shift signaling to caspase 8. SHH PA has significant clinical potential as a preventative ED therapy, by management of intrinsic and extrinsic apoptotic mechanisms.
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Affiliation(s)
- Sarah Martin
- Department of Urology, University of Illinois at Chicago, Chicago, IL
| | - Daniel A Harrington
- UTHealth, The University of Texas Health Science Center at Houston, Department of Diagnostic and Biomedical Sciences, Houston, TX
| | - Samuel Ohlander
- Department of Urology, University of Illinois at Chicago, Chicago, IL
| | - Samuel I Stupp
- Simpson Querrey Institute, Departments of Chemistry, Materials Science and Engineering, Biomedical Engineering, and Medicine, Evanston, IL
| | - Kevin T McVary
- Department of Urology, Loyola University Stritch School of Medicine, Maywood, IL
| | - Carol A Podlasek
- Departments of Urology, Physiology, Bioengineering, and Biochemistry, University of Illinois at Chicago, Chicago, IL.
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Sangji MH, Sai H, Chin SM, Lee SR, Sasselli IR, Palmer LC, Stupp SI. Correction to "Supramolecular Interactions and Morphology of Self-Assembling Peptide Amphiphile Nanostructures". Nano Lett 2021; 21:7427-7428. [PMID: 34460253 DOI: 10.1021/acs.nanolett.1c03116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- M Hussain Sangji
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Hiroaki Sai
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Stacey M Chin
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Sieun Ruth Lee
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Ivan R Sasselli
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
| | - Liam C Palmer
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, 676 N St. Clair, Chicago, Illinois 60611, United States
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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Peters EB, Karver MR, Sun K, Gillis DC, Biswas S, Clemons TD, He W, Tsihlis ND, Stupp SI, Kibbe MR. Self-Assembled Peptide Amphiphile Nanofibers for Controlled Therapeutic Delivery to the Atherosclerotic Niche. Adv Ther (Weinh) 2021; 4:2100103. [PMID: 34926792 PMCID: PMC8680456 DOI: 10.1002/adtp.202100103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Indexed: 11/08/2022]
Abstract
Atherosclerotic plaque remains the leading contributor to cardiovascular disease and requires invasive surgical procedures for its removal. Nanomedicine offers a minimally invasive approach to alleviate plaque burden by targeted therapeutic delivery. However, nanocarriers are limited without the ability to sense and respond to the diseased microenvironment. In this study, targeted self-assembled peptide amphiphile (PA) nanofibers were developed that cleave in response to biochemical cues expressed in atherosclerotic lesions-reactive oxygen species (ROS) and intracellular glutathione-to deliver a liver X receptor agonist (LXR) to enhance macrophage cholesterol efflux. The PAs released LXR in response to physiological levels of ROS and reducing agents and could be co-assembled with plaque-targeting PAs to form nanofibers. The resulting LXR PA nanofibers promoted cholesterol efflux from macrophages in vitro as well as LXR alone and with lower cytotoxicity. Further, the ApoA1-LXR PA nanofibers targeted plaque within an atherosclerotic mouse model in vivo and activated ATP-binding cassette A1 (ABCA1) expression as well as LXR alone with reduced liver toxicity. Taken together, these results demonstrate the potential of self-assembled PA nanofibers for controlled therapeutic delivery to the atherosclerotic niche.
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Affiliation(s)
- Erica B. Peters
- Department of Surgery, Division of Vascular Surgery and Center for Nanotechnology in Drug Delivery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Mark R. Karver
- Simpson Querrey Institute, Northwestern University, Chicago, IL 60611, USA
| | - Kui Sun
- Department of Surgery, Division of Vascular Surgery and Center for Nanotechnology in Drug Delivery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - David C. Gillis
- Department of Surgery, Division of Vascular Surgery and Center for Nanotechnology in Drug Delivery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Suvendu Biswas
- Simpson Querrey Institute, Northwestern University, Chicago, IL 60611, USA
| | - Tristan D. Clemons
- Simpson Querrey Institute, Northwestern University, Chicago, IL 60611, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Wenhan He
- Department of Surgery, Division of Vascular Surgery and Center for Nanotechnology in Drug Delivery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Nick D. Tsihlis
- Department of Surgery, Division of Vascular Surgery and Center for Nanotechnology in Drug Delivery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Samuel I. Stupp
- Simpson Querrey Institute, Northwestern University, Chicago, IL 60611, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science & Engineering and Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Melina R. Kibbe
- Department of Surgery, Division of Vascular Surgery and Center for Nanotechnology in Drug Delivery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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38
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Sangji MH, Sai H, Chin SM, Lee SR, R Sasselli I, Palmer LC, Stupp SI. Supramolecular Interactions and Morphology of Self-Assembling Peptide Amphiphile Nanostructures. Nano Lett 2021; 21:6146-6155. [PMID: 34259001 DOI: 10.1021/acs.nanolett.1c01737] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The morphology of supramolecular peptide nanostructures is difficult to predict given their complex energy landscapes. We investigated peptide amphiphiles containing β-sheet forming domains that form twisted nanoribbons in water. We explained the morphology based on a balance between the energetically favorable packing of molecules in the center of the nanostructures, the unfavorable packing at the edges, and the deformations due to packing of twisted β-sheets. We find that morphological polydispersity of PA nanostructures is determined by peptide sequences, and the twisting of their internal β-sheets. We also observed a change in the supramolecular chirality of the nanostructures as the peptide sequence was modified, although only amino acids with l-configuration were used. Upon increasing charge repulsion between molecules, we observed a change in morphology to long cylinders and then rodlike fragments and spherical micelles. Understanding the self-assembly mechanisms of peptide amphiphiles into nanostructures should be useful to optimize their well-known functions.
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Affiliation(s)
- M Hussain Sangji
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Hiroaki Sai
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Stacey M Chin
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Sieun Ruth Lee
- Department of Materials Science and Engineering, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Ivan R Sasselli
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
| | - Liam C Palmer
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, 676 N St. Clair, Chicago, Illinois 60611, United States
- Simpson Querrey Institute, Northwestern University, 303 E Superior, Chicago, Illinois 60611, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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Xing H, Chin SM, Udumula VR, Krishnaiah M, Rodrigues de Almeida N, Huck-Iriart C, Picco AS, Lee SR, Zaldivar G, Jackson KA, Tagliazucchi M, Stupp SI, Conda-Sheridan M. Control of Peptide Amphiphile Supramolecular Nanostructures by Isosteric Replacements. Biomacromolecules 2021; 22:3274-3283. [PMID: 34291897 DOI: 10.1021/acs.biomac.1c00379] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Supramolecular nanostructures with tunable properties can have applications in medicine, pharmacy, and biotechnology. In this work, we show that the self-assembly behavior of peptide amphiphiles (PAs) can be effectively tuned by replacing the carboxylic acids exposed to the aqueous media with isosteres, functionalities that share key physical or chemical properties with another chemical group. Transmission electron microscopy, atomic force microscopy, and small-angle X-ray scattering studies indicated that the nanostructure's morphologies are responsive to the ionization states of the side chains, which are related to their pKa values. Circular dichroism studies revealed the effect of the isosteres on the internal arrangement of the nanostructures. The interactions between diverse surfaces and the nanostructures and the effect of salt concentration and temperature were assessed to further understand the properties of these self-assembled systems. These results indicate that isosteric replacements allow the pH control of supramolecular morphology by manipulating the pKa of the charged groups located on the nanostructure's surface. Theoretical studies were performed to understand the morphological transitions that the nanostructures underwent in response to pH changes, suggesting that the transitions result from alterations in the Coulomb forces between PA molecules. This work provides a strategy for designing biomaterials that can maintain or change behaviors based on the pH differences found within cells and tissues.
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Affiliation(s)
- Huihua Xing
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68105, United States
| | - Stacey M Chin
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Venkata Reddy Udumula
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68105, United States
| | - Maddeboina Krishnaiah
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68105, United States
| | | | - Cristián Huck-Iriart
- Laboratorio de Cristalografía Aplicada, Escuela de Ciencia y Tecnología, Universidad Nacional de General San Martín, B1650 San Martín, Buenos Aires, Argentina
| | - Agustín S Picco
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA) - Universidad Nacional de La Plata (UNLP) - CONICET, 1900, La Plata, Argentina
| | - Sieun Ruth Lee
- Department of Materials Science & Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Gervasio Zaldivar
- INQUIMAE-CONICET and DQIAQF, Universidad de Buenos Aires, Facultad de Ciencias, Ciudad Universitaria, C1428 Ciudad de Buenos Aires, Argentina
| | - Kelsey A Jackson
- College of Arts and Sciences, Creighton University, Omaha, Nebraska 68178, United States
| | - Mario Tagliazucchi
- INQUIMAE-CONICET and DQIAQF, Universidad de Buenos Aires, Facultad de Ciencias, Ciudad Universitaria, C1428 Ciudad de Buenos Aires, Argentina
| | - Samuel I Stupp
- Department of Materials Science & Engineering, Chemistry, Biomedical Engineering, Medicine, and Simpson Querrey Institute, Northwestern University, Evanston, Illinois 60208, United States
| | - Martin Conda-Sheridan
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68105, United States
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Newton ER, Gillis DC, Sun K, Dandurand BR, Siletzky R, Biswas S, Karver MR, Tsihlis ND, Stupp SI, Kibbe MR. Evaluation of a Targeted Drug‐Eluting Intravascular Nanotherapy to Prevent Neointimal Hyperplasia in an Atherosclerotic Rat Model. Adv NanoBio Res 2021. [DOI: 10.1002/anbr.202000093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Emily R. Newton
- Department of Surgery Center for Nanotechnology in Drug Delivery University of North Carolina at Chapel Hill Burnett Womack Suite 4041, 101 Manning Drive Chapel Hill NC 27599-7050 USA
| | - David C. Gillis
- Department of Surgery Center for Nanotechnology in Drug Delivery University of North Carolina at Chapel Hill Burnett Womack Suite 4041, 101 Manning Drive Chapel Hill NC 27599-7050 USA
| | - Kui Sun
- Department of Surgery Center for Nanotechnology in Drug Delivery University of North Carolina at Chapel Hill Burnett Womack Suite 4041, 101 Manning Drive Chapel Hill NC 27599-7050 USA
| | - Brooke R. Dandurand
- Department of Surgery Center for Nanotechnology in Drug Delivery University of North Carolina at Chapel Hill Burnett Womack Suite 4041, 101 Manning Drive Chapel Hill NC 27599-7050 USA
| | - Robin Siletzky
- Department of Surgery Center for Nanotechnology in Drug Delivery University of North Carolina at Chapel Hill Burnett Womack Suite 4041, 101 Manning Drive Chapel Hill NC 27599-7050 USA
| | - Suvendu Biswas
- Simpson Querrey Institute Northwestern University Chicago IL 60611 USA
| | - Mark R. Karver
- Simpson Querrey Institute Northwestern University Chicago IL 60611 USA
| | - Nick D. Tsihlis
- Department of Surgery Center for Nanotechnology in Drug Delivery University of North Carolina at Chapel Hill Burnett Womack Suite 4041, 101 Manning Drive Chapel Hill NC 27599-7050 USA
| | - Samuel I. Stupp
- Simpson Querrey Institute Northwestern University Chicago IL 60611 USA
- Department of Medicine Northwestern University Chicago IL 60611 USA
- Departments of Chemistry Materials Science and Engineering Biomedical Engineering Northwestern University Evanston IL 60208 USA
| | - Melina R. Kibbe
- Department of Surgery Center for Nanotechnology in Drug Delivery University of North Carolina at Chapel Hill Burnett Womack Suite 4041, 101 Manning Drive Chapel Hill NC 27599-7050 USA
- Department of Biomedical Engineering University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
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Marulanda K, Mercel A, Gillis DC, Sun K, Gambarian M, Roark J, Weiss J, Tsihlis ND, Karver MR, Centeno SR, Peters EB, Clemons TD, Stupp SI, McLean SE, Kibbe MR. Intravenous Delivery of Lung-Targeted Nanofibers for Pulmonary Hypertension in Mice. Adv Healthc Mater 2021; 10:e2100302. [PMID: 34061473 PMCID: PMC8273153 DOI: 10.1002/adhm.202100302] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/15/2021] [Indexed: 01/11/2023]
Abstract
Pulmonary hypertension is a highly morbid disease with no cure. Available treatments are limited by systemic adverse effects due to non-specific biodistribution. Self-assembled peptide amphiphile (PA) nanofibers are biocompatible nanomaterials that can be modified to recognize specific biological markers to provide targeted drug delivery and reduce off-target toxicity. Here, PA nanofibers that target the angiotensin I-converting enzyme and the receptor for advanced glycation end-products (RAGE) are developed, as both proteins are overexpressed in the lung with pulmonary hypertension. It is demonstrated that intravenous delivery of RAGE-targeted nanofibers containing the targeting epitope LVFFAED (LVFF) significantly accumulated within the lung in a chronic hypoxia-induced pulmonary hypertension mouse model. Using 3D light sheet fluorescence microscopy, it is shown that LVFF nanofiber localization is specific to the diseased pulmonary tissue with immunofluorescence analysis demonstrating colocalization of the targeted nanofiber to RAGE in the hypoxic lung. Furthermore, biodistribution studies show that significantly more LVFF nanofibers localized to the lung compared to major off-target organs. Targeted nanofibers are retained within the pulmonary tissue for 24 h after injection. Collectively, these data demonstrate the potential of a RAGE-targeted nanomaterial as a drug delivery platform to treat pulmonary hypertension.
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Affiliation(s)
- Kathleen Marulanda
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Alexandra Mercel
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - David C Gillis
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Kui Sun
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Maria Gambarian
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Joshua Roark
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Jenna Weiss
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Nick D Tsihlis
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Mark R Karver
- Simpson Querrey Institute, Northwestern University, 303 E. Superior Street, Chicago, IL, 60611, USA
| | - S Ruben Centeno
- Department of Pediatrics, University of North Carolina, 260 MacNider Building CB# 7220, Chapel Hill, NC, 27599, USA
| | - Erica B Peters
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Tristan D Clemons
- Simpson Querrey Institute, Northwestern University, 303 E. Superior Street, Chicago, IL, 60611, USA
| | - Samuel I Stupp
- Simpson Querrey Institute, Northwestern University, 303 E. Superior Street, Chicago, IL, 60611, USA
| | - Sean E McLean
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Melina R Kibbe
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
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42
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Chen XY, Chen H, Đorđević L, Guo QH, Wu H, Wang Y, Zhang L, Jiao Y, Cai K, Chen H, Stern CL, Stupp SI, Snurr RQ, Shen D, Stoddart JF. Selective Photodimerization in a Cyclodextrin Metal-Organic Framework. J Am Chem Soc 2021; 143:9129-9139. [PMID: 34080831 DOI: 10.1021/jacs.1c03277] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
For the most part, enzymes contain one active site wherein they catalyze in a serial manner chemical reactions between substrates both efficiently and rapidly. Imagine if a situation could be created within a chiral porous crystal containing trillions of active sites where substrates can reside in vast numbers before being converted in parallel into products. Here, we report how it is possible to incorporate 1-anthracenecarboxylate (1-AC-) as a substrate into a γ-cyclodextrin-containing metal-organic framework (CD-MOF-1), where the metals are K+ cations, prior to carrying out [4+4] photodimerizations between pairs of substrate molecules, affording selectively one of four possible regioisomers. One of the high-yielding regioisomers exhibits optical activity as a result of the presence of an 8:1 ratio of the two enantiomers following separation by high-performance liquid chromatography. The solid-state superstructure of 1-anthracenecarboxylate potassium salt (1-ACK), which is co-crystallized with γ-cyclodextrin, reveals that pairs of substrate molecules are not only packed inside tunnels between spherical cavities present in CD-MOF-1, but also stabilized-in addition to hydrogen-bonding to the C-2 and C-3 hydroxyl groups on the d-glucopyranosyl residues present in the γ-cyclodextrin tori-by combinations of hydrophobic and electrostatic interactions between the carboxyl groups in 1-AC- and four K+ cations on the waistline between the two γ-cyclodextrin tori in the tunnels. These non-covalent bonding interactions result in preferred co-conformations that account for the highly regio- and enantioselective [4+4] cycloaddition during photoirradiation. Theoretical calculations, in conjunction with crystallography, support the regio- and stereochemical outcome of the photodimerization.
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Affiliation(s)
- Xiao-Yang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Haoyuan Chen
- Department of Chemical & Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Luka Đorđević
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Center for Bio-inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Qing-Hui Guo
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Huang Wu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yu Wang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Long Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Kang Cai
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Hongliang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Charlotte L Stern
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Center for Bio-inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States.,Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Medicine, Northwestern University, 676 North St. Clair Street, Chicago, Illinois 60611, United States.,Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
| | - Randall Q Snurr
- Department of Chemical & Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Dengke Shen
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia.,Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, China.,ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
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43
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Jiao Y, Đorđević L, Mao H, Young RM, Jaynes T, Chen H, Qiu Y, Cai K, Zhang L, Chen XY, Feng Y, Wasielewski MR, Stupp SI, Stoddart JF. A Donor-Acceptor [2]Catenane for Visible Light Photocatalysis. J Am Chem Soc 2021; 143:8000-8010. [PMID: 34028258 DOI: 10.1021/jacs.1c01493] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Colored charge-transfer complexes can be formed by the association between electron-rich donor and electron-deficient acceptor molecules, bringing about the narrowing of HOMO-LUMO energy gaps so that they become capable of harnessing visible light. In an effort to facilitate the use of these widespread, but nonetheless weak, interactions for visible light photocatalysis, it is important to render the interactions strong and robust. Herein, we employ a well-known donor-acceptor [2]catenane-formed by the mechanical interlocking of cyclobis(paraquat-p-phenylene) and 1,5-dinaphtho[38]crown-10-in which the charge-transfer interactions between two 4,4'-bipyridinium and two 1,5-dioxynaphthalene units are enhanced by mechanical bonding, leading to increased absorption of visible light, even at low concentrations in solution. As a result, since this [2]catenane can generate persistent bipyridinium radical cations under continuous visible-light irradiation without the need for additional photosensitizers, it can display good catalytic activity in both photo-reductions and -oxidations, as demonstrated by hydrogen production-in the presence of platinum nanoparticles-and aerobic oxidation of organic sulfides, such as l-methionine, respectively. This research, which highlights the usefulness of nanoconfinement present in mechanically interlocked molecules for the reinforcement of weak interactions, can not only expand the potential of charge-transfer interactions in solar energy conversion and synthetic photocatalysis but also open up new possibilities for the development of active artificial molecular shuttles, switches, and machines.
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Affiliation(s)
- Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Luka Đorđević
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Center for Bio-inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Haochuan Mao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Ryan M Young
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Tyler Jaynes
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Center for Bio-inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Hongliang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yunyan Qiu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Kang Cai
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Long Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xiao-Yang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yuanning Feng
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Michael R Wasielewski
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Center for Bio-inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States.,Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Medicine, Northwestern University, 676 North St. Clair Street, Chicago, Illinois 60611, United States.,Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia.,Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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44
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Cotey TJ, Sai H, Perez C, Palmer LC, Stupp SI. Hybrid gels via bulk interfacial complexation of supramolecular polymers and polyelectrolytes. Soft Matter 2021; 17:4949-4956. [PMID: 34008682 DOI: 10.1039/d1sm00168j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hierarchical self-assembly leading to organized supramolecular structures across multiple length scales has been of great recent interest. Earlier work from our laboratory reported the complexation of peptide amphiphile (PA) supramolecular polymers with oppositely charged polyelectrolytes into a single solid membrane at a macroscopic interface. We report here the formation of bulk gels with many internal interfaces between the covalent and supramolecular polymer components formed by the rapid chaotic mixing of solutions, one containing negatively charged PA nanofibers and the other the positively charged biopolymer chitosan. We found that formation of a contact layer at the interface of the solutions locks the formation of hydrogels with lamellar microstructure. The nanofiber morphology of the supramolecular polymer is essential to this process since gels do not form when solutions of supramolecular assemblies form spherical micelles. We found that rheological properties of the gels can be tuned by changing the relative amounts of each component. Furthermore, both positively and negatively charged proteins are easily encapsulated within the contact layer of the gel, which provides an interesting biomedical function for these systems.
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Affiliation(s)
- Thomas J Cotey
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA.
| | - Hiroaki Sai
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, Illinois 60208, USA and Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, USA
| | - Cynthia Perez
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA.
| | - Liam C Palmer
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, Illinois 60208, USA and Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, USA and Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
| | - Samuel I Stupp
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA. and Center for Bio-Inspired Energy Science, Northwestern University, Evanston, Illinois 60208, USA and Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, USA and Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA and Department of Medicine, Northwestern University, Chicago, Illinois 60611, USA and Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, USA
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45
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Dannenhoffer AJ, Sai H, Harutyunyan B, Narayanan A, Powers-Riggs NE, Edelbrock AN, Passarelli JV, Weigand SJ, Wasielewski MR, Bedzyk MJ, Palmer LC, Stupp SI. Growth of Extra-Large Chromophore Supramolecular Polymers for Enhanced Hydrogen Production. Nano Lett 2021; 21:3745-3752. [PMID: 33877843 DOI: 10.1021/acs.nanolett.0c05024] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The control of morphology in bioinspired chromophore assemblies is key to the rational design of functional materials for light harvesting. We investigate here morphological changes in perylene monoimide chromophore assemblies during thermal annealing in aqueous environments of high ionic strength to screen electrostatic repulsion. We found that annealing under these conditions leads to the growth of extra-large ribbon-shaped crystalline supramolecular polymers of widths from about 100 nm to several micrometers and lengths from 1 to 10 μm while still maintaining a unimolecular thickness. This growth process was monitored by variable-temperature absorbance spectroscopy, synchrotron X-ray scattering, and confocal microscopy. The extra-large single-crystal-like supramolecular polymers are highly porogenic, thus creating loosely packed hydrogel scaffolds that showed greatly enhanced photocatalytic hydrogen production with turnover numbers as high as 13 500 over ∼110 h compared to 7500 when smaller polymers are used. Our results indicate great functional opportunities in thermally and pathway-controlled supramolecular polymerization.
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Affiliation(s)
- Adam J Dannenhoffer
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Hiroaki Sai
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Boris Harutyunyan
- Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Ashwin Narayanan
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
| | - Natalia E Powers-Riggs
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Alexandra N Edelbrock
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - James V Passarelli
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Steven J Weigand
- Dow-Northwestern-DuPont Collaborative Access Team Synchrotron Research Center, Northwestern University, 9700 South Cass Avenue, Argonne, Illinois 60439 United States
| | - Michael R Wasielewski
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Michael J Bedzyk
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Liam C Palmer
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Simpson Querrey Institute, Northwestern University, 303 East Superior Street, Chicago, Illinois 60611, United States
| | - Samuel I Stupp
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States
- Center for Bio-Inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, 676 North Saint Clair, Chicago, Illinois 60611, United States
- Simpson Querrey Institute, Northwestern University, 303 East Superior Street, Chicago, Illinois 60611, United States
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46
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Mercel AI, Marulanda K, Gillis DC, Sun K, Clemons TD, Willcox S, Griffith J, Peters EB, Karver MR, Tsihlis ND, Maile R, Stupp SI, Kibbe MR. Development of novel nanofibers targeted to smoke-injured lungs. Biomaterials 2021; 274:120862. [PMID: 33975274 DOI: 10.1016/j.biomaterials.2021.120862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/02/2021] [Accepted: 04/26/2021] [Indexed: 11/26/2022]
Abstract
Smoke inhalation injury is associated with significant mortality and current therapies remain supportive. The purpose of our study was to identify proteins upregulated in the lung after smoke inhalation injury and develop peptide amphiphile nanofibers that target these proteins. We hypothesize that nanofibers targeted to angiotensin-converting enzyme or receptor for advanced glycation end products will localize to smoke-injured lungs. METHODS Five targeting sequences were incorporated into peptide amphiphile monomers methodically to optimize nanofiber formation. Nanofiber formation was assessed by conventional transmission electron microscopy. Rats received 8 min of wood smoke. Levels of angiotensin-converting enzyme and receptor for advanced glycation end products were evaluated by immunofluorescence. Rats received the targeted nanofiber 23 h after injury via tail vein injection. Nanofiber localization was determined by fluorescence quantification. RESULTS Peptide amphiphile purity (>95%) and nanofiber formation were confirmed. Target proteins were increased in smoke inhalation versus sham (p < 0.001). After smoke inhalation and injection of targeted nanofibers, we found a 10-fold increase in angiotensin-converting enzyme-targeted nanofiber localization to lung (p < 0.001) versus sham with minimal localization of non-targeted nanofiber (p < 0.001). CONCLUSIONS We synthesized, characterized, and evaluated systemically delivered targeted nanofibers that localized to the site of smoke inhalation injury in vivo. Angiotensin-converting enzyme-targeted nanofibers serve as the foundation for developing a novel nanotherapeutic that treats smoke inhalation lung injury.
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Affiliation(s)
- Alexandra I Mercel
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Kathleen Marulanda
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - David C Gillis
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Kui Sun
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Tristan D Clemons
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Smaranda Willcox
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Jack Griffith
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Erica B Peters
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Mark R Karver
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA
| | - Nick D Tsihlis
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Rob Maile
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA; Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, 27599, USA; Curriculum of Toxicology and Environmental Medicine, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Samuel I Stupp
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA; Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA; Department of Materials Science & Engineering, Northwestern University, Evanston, IL, 60208, USA; Department of Medicine, Northwestern University, Chicago, IL, 60611, USA; Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Melina R Kibbe
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA; Department of Biomedical Engineering, University of North Carolina, Chapel Hill, NC, 27599, USA.
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47
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Abstract
Supramolecular self-assembly enables living organisms to form highly functional hierarchical structures with individual components self-organized across multiple length scales. This has inspired work on multicomponent supramolecular materials to understand factors behind co-assembly versus self-sorting of molecules. We report here on a supramolecular system comprised of negatively charged peptide amphiphile (PA) molecules, in which only a tiny fraction of the molecules (0.7 mol%) were covalently conjugated to one of two different fluorophores, half to fluorescein isothiocyanate (FTIC) and the other half to tetramethylrhodamine (TAMRA). Confocal microscopy of the system revealed self-sorting of the two different fluorescent PA molecules, where TAMRA PA is concentrated in micron-scale domains while FITC PA remains dispersed throughout the sample. From Förster resonance energy transfer and fluorescence recovery experiments, we conclude that conjugation of the negatively charged FITC to PA significantly disrupts its co-assembly with the 99.3 mol% of unlabeled molecules, which are responsible for formation of micron-scale domains. Conversely, conjugation of the zwitterionic TAMRA causes no such disruption. Interestingly, this dissimilar behavior between FITC and TAMRA PA causes them to self-sort at large length scales in the supramolecular system, mediated not by specific interactions among the individual fluorophores but instead by their different propensities to co-assemble with the majority component. We also found that greater ionic strength in the aqueous environment of the system promotes mixing by lowering the electrostatic barriers involved in self-sorting. Our results demonstrate great thermodynamic subtlety in the driving forces that mediate self-sorting versus co-assembly in supramolecular peptide assemblies.
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Affiliation(s)
- Charlotte H Chen
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL 60208, USA.
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48
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Edelbrock AN, Clemons TD, Chin SM, Roan JJW, Bruckner EP, Álvarez Z, Edelbrock JF, Wek KS, Stupp SI. Superstructured Biomaterials Formed by Exchange Dynamics and Host-Guest Interactions in Supramolecular Polymers. Adv Sci (Weinh) 2021; 8:2004042. [PMID: 33898187 PMCID: PMC8061421 DOI: 10.1002/advs.202004042] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/21/2020] [Indexed: 05/12/2023]
Abstract
Dynamic and reversible assembly of molecules is ubiquitous in the hierarchical superstructures of living systems and plays a key role in cellular functions. Recent work from the laboratory reported on the reversible formation of such superstructures in systems of peptide amphiphiles conjugated to oligonucleotides and electrostatically complimentary peptide sequences. Here, a supramolecular system is reported upon where exchange dynamics and host-guest interactions between β-cyclodextrin and adamantane on peptide amphiphiles lead to superstructure formation. Superstructure formation with bundled nanoribbons generates a mechanically robust hydrogel with a highly porous architecture that can be 3D printed. Functionalization of the porous superstructured material with a biological signal results in a matrix with significant in vitro bioactivity toward neurons that could be used as a supramolecular model to design novel biomaterials.
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Affiliation(s)
- Alexandra N. Edelbrock
- Department of Biomedical EngineeringNorthwestern UniversityEvanstonIL60208USA
- Simpson Querrey InstituteNorthwestern UniversityChicagoIL60611USA
| | - Tristan D. Clemons
- Simpson Querrey InstituteNorthwestern UniversityChicagoIL60611USA
- Department of ChemistryNorthwestern UniversityEvanstonIL60208USA
| | - Stacey M. Chin
- Department of ChemistryNorthwestern UniversityEvanstonIL60208USA
| | - Joshua J. W. Roan
- Department of Materials Science and EngineeringNorthwestern UniversityEvanstonIL60208USA
| | - Eric P. Bruckner
- Department of Materials Science and EngineeringNorthwestern UniversityEvanstonIL60208USA
| | - Zaida Álvarez
- Simpson Querrey InstituteNorthwestern UniversityChicagoIL60611USA
- Department of MedicineNorthwestern UniversityChicagoIL60611USA
| | - Jack F. Edelbrock
- Simpson Querrey InstituteNorthwestern UniversityChicagoIL60611USA
- Department of Materials Science and EngineeringNorthwestern UniversityEvanstonIL60208USA
- Department of MedicineNorthwestern UniversityChicagoIL60611USA
| | - Kristen S. Wek
- Department of Materials Science and EngineeringNorthwestern UniversityEvanstonIL60208USA
| | - Samuel I. Stupp
- Department of Biomedical EngineeringNorthwestern UniversityEvanstonIL60208USA
- Simpson Querrey InstituteNorthwestern UniversityChicagoIL60611USA
- Department of ChemistryNorthwestern UniversityEvanstonIL60208USA
- Department of Materials Science and EngineeringNorthwestern UniversityEvanstonIL60208USA
- Department of MedicineNorthwestern UniversityChicagoIL60611USA
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49
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Bury MI, Fuller NJ, Clemons TD, Sturm RM, Morrison CD, Lisy‐Snow DC, Nolan BG, Tarczynski C, Ayello EMT, Boyce A, Muckian B, Ahmad N, Hunter CJ, Karver MR, Stupp SI, Sharma AK. Self‐Assembling Nanofibers Inhibit Inflammation in a Murine Model of Crohn's‐Disease‐Like Ileitis. Adv Therap 2021. [DOI: 10.1002/adtp.202000274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Matthew I. Bury
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
- Lurie Children's Hospital of Chicago 255 East Superior Street Chicago IL 60611 USA
| | - Natalie J. Fuller
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
- Lurie Children's Hospital of Chicago 255 East Superior Street Chicago IL 60611 USA
| | - Tristan D. Clemons
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
| | - Renea M. Sturm
- Department of Urology University of California Los Angeles 200 Medical Plaza Driveway #140 Los Angeles CA 90095 USA
| | - Christopher D. Morrison
- Department of Urology Northwestern University Feinberg School of Medicine 676 North St. Clair Suite 2300 Chicago IL 60611 USA
| | - Devon C. Lisy‐Snow
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
- Lurie Children's Hospital of Chicago 255 East Superior Street Chicago IL 60611 USA
| | - Bonnie G. Nolan
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
- Lurie Children's Hospital of Chicago 255 East Superior Street Chicago IL 60611 USA
| | - Christopher Tarczynski
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
| | - Emily M. T. Ayello
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
| | - Amber Boyce
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
- Lurie Children's Hospital of Chicago 255 East Superior Street Chicago IL 60611 USA
| | - Bridget Muckian
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
- Lurie Children's Hospital of Chicago 255 East Superior Street Chicago IL 60611 USA
| | - Nida Ahmad
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
- Lurie Children's Hospital of Chicago 255 East Superior Street Chicago IL 60611 USA
| | - Catherine J. Hunter
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
- Lurie Children's Hospital of Chicago 255 East Superior Street Chicago IL 60611 USA
| | - Mark R. Karver
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
| | - Samuel I. Stupp
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
- Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- McCormick School of Engineering Department of Biomedical Engineering Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Department of Materials Science and Engineering Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Feinberg School of Medicine Department of Medicine Northwestern University 420 E Superior Street Chicago IL 60611 USA
| | - Arun K. Sharma
- Simpson Querrey Institute (SQI) Northwestern University 303 East Superior Street Chicago IL 60611 USA
- Department of Urology Northwestern University Feinberg School of Medicine 676 North St. Clair Suite 2300 Chicago IL 60611 USA
- McCormick School of Engineering Department of Biomedical Engineering Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
- Stanley Manne Children's Research Institute (SMCRI) 303 East Superior Street Chicago IL 60611 USA
- Center for Advanced Regenerative Engineering (CARE) 2145 Sheridan Road Evanston IL 60208 USA
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Martin S, Harrington DA, Ohlander S, Stupp SI, McVary KT, Podlasek CA. Caspase Signaling in ED Patients and Animal Models. J Sex Med 2021; 18:711-722. [PMID: 33707045 DOI: 10.1016/j.jsxm.2021.01.175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/04/2020] [Accepted: 01/07/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Current treatments for erectile dysfunction (ED) are ineffective in prostatectomy and diabetic patients due to cavernous nerve (CN) injury, which causes smooth muscle apoptosis, penile remodeling, and ED. Apoptosis can occur via the intrinsic (caspase 9) or extrinsic (caspase 8) pathway. AIM We examined the mechanism of how apoptosis occurs in ED patients and CN injury rat models to determine points of intervention for therapy development. METHODS AND OUTCOMES Immunohistochemical and western analyses for caspase 3-cleaved, caspase-8 and caspase-9 (pro and active forms) were performed in corpora cavernosal tissue from Peyronie's, prostatectomy and diabetic ED patients (n = 33), penis from adult Sprague Dawley rats that underwent CN crush (n = 24), BB/WOR diabetic and control rats (n = 8), and aged rats (n = 9). RESULTS Caspase 3-cleaved was observed in corpora cavernosa from Peyronie's patients and at higher abundance in prostatectomy and diabetic tissues. Apoptosis takes place primarily through the extrinsic (caspase 8) pathway in penis tissue of ED patients. In the CN crushed rat, caspase 3-cleaved was abundant from 1-9 days after injury, and apoptosis takes place primarily via the intrinsic (caspase 9) pathway. Caspase 9 was first observed and most abundant in a layer under the tunica, and after several days was observed in the lining of and between the sinuses of the corpora cavernosa. Caspase 8 was initially observed at low abundance in the rat corpora cavernosa and was not observed at later time points after CN injury. Aged and diabetic rat penis primarily exhibited intrinsic mechanisms, with diabetic rats also exhibiting mild extrinsic activation. CLINICAL TRANSLATION Knowing how and when to intervene to prevent the apoptotic response most effectively is critical for the development of drugs to prevent ED, morphological remodeling of the corpora cavernosa, and thus, disease management. STRENGTHS AND LIMITATIONS Animal models may diverge from the signaling mechanisms observed in ED patients. While the rat utilizes primarily caspase 9, there is a significant flux through caspase 8 early on, making it a reasonable model, as long as the timing of apoptosis is considered after CN injury. CONCLUSIONS Apoptosis takes place primarily through the extrinsic caspase 8 dependent pathway in ED patients and via the intrinsic caspase 9 dependent pathway in commonly used CN crush ED models. This is an important consideration for study design and interpretation that must be taken into account for therapy development and testing of drugs, and our therapeutic targets should ideally inhibit both apoptotic mechanisms. Martin S, Harrington DA, Ohlander S, et al. Caspase Signaling in ED Patients and Animal Models. J Sex Med 2021;18:711-722.
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Affiliation(s)
- Sarah Martin
- Department of Urology, University of Illinois at Chicago, Chicago, IL, USA
| | - Daniel A Harrington
- UTHealth, The University of Texas Health Science Center at Houston, Department of Diagnostic and Biomedical Sciences, Houston, TX, USA
| | - Samuel Ohlander
- Department of Urology, University of Illinois at Chicago, Chicago, IL, USA
| | - Samuel I Stupp
- Simpson Querrey Institute, Departments of Chemistry, Materials Science and Engineering, Biomedical Engineering, and Medicine, Northwestern University, Evanston, IL, USA
| | - Kevin T McVary
- Department of Urology, Loyola University Stritch School of Medicine, Maywood, IL, USA
| | - Carol A Podlasek
- Departments of Urology, Physiology, Bioengineering, and Biochemistry, University of Illinois at Chicago, Chicago, IL, USA.
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