1
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Wu L, Zhu K, Xue S, Wu B, Xiao Z, Feng Z, Yin Y, Li J, Yu D, Cao Z. Dual-Mode Arginine Assay Based on the Conformation Switch of a Ferrocene-Grafted Polypeptide. Anal Chem 2024; 96:10943-10952. [PMID: 38918973 DOI: 10.1021/acs.analchem.4c01050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
Both controllable regulation of the conformational structure of a polypeptide and specific recognition of an amino acid are still arduous challenges. Here, a novel dual-mode (electrochemical and colorimetric) biosensor was built for arginine (Arg) recognition based on a conformation switch, utilizing controllable and synergistic self-assembly of a ferrocene-grafted hexadecapeptide (P16Fc) with gold nanoparticles (AuNPs). Benefiting from the flexibility and unique topological structure of P16Fc formed nanospheres, the assembly and disassembly can undergo a conformation transition induced by Arg through controlling the distance and number of Fc detached from the gold surface, producing on-off electrical signals. Also, they can induce aggregation and dispersion of AuNPs in solution, causing a color change. The mechanism of Arg recognition with polypeptide conformation regulation was well explored by combining microstructure characterizations with molecular mechanics calculations. The electrochemical and colorimetric assays for Arg were successfully established in sensitive and selective manner, not only obtaining a very low detection limit, but also effectively eliminating the interference from other amino acids and overcoming the limitation of AuNP aggregation. Notably, the conformational change-based assay with the peptide regulated by the target will make a powerful tool for the amino acid biosensing and health diagnosis.
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Affiliation(s)
- Ling Wu
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Kaijie Zhu
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Shulei Xue
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Bowen Wu
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Zhongliang Xiao
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Zemeng Feng
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Yulong Yin
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Jishan Li
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Donghong Yu
- Department of Chemistry and Bioscience, Aalborg University, DK-9220 Aalborg, East, Denmark
| | - Zhong Cao
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, China
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2
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Song J, Shao L, Yu H, Meng C, Li G. Self-Assembly of Sulfate-Containing Peptides Sequesters VEGF for Inhibiting Cancer Cell Invasion. Biomacromolecules 2024; 25:3087-3097. [PMID: 38584438 DOI: 10.1021/acs.biomac.4c00168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Heparan sulfate proteoglycans (HSPGs) play a crucial role in regulating cancer growth and migration by mediating interactions with growth factors. In this study, we developed a self-assembling peptide (S1) containing a sulfate group to simulate the contiguous sulfated regions (S-domains) in heparan sulfate for growth factor binding, aiming to sequester growth factors like VEGF. Spectral and structural studies as well as simulation studies suggested that S1 self-assembled into nanostructures similar to the heparan sulfate chains and effectively bound to VEGF. On cancer cell surfaces, S1 self-assemblies sequestered VEGF, leading to a reduction in VEGF levels in the medium, consequently inhibiting cancer cell growth, invasion, and angiogenesis. This study highlights the potential of self-assembling peptides to emulate extracellular matrix functions, offering insights for future cancer therapeutic strategies.
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Affiliation(s)
- Jiaqi Song
- Department of Biophysics, School of Basic Medical Sciences, Health Science Centre, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P. R. China
| | - Liang Shao
- Department of Biophysics, School of Basic Medical Sciences, Health Science Centre, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P. R. China
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Hongwen Yu
- Department of Biophysics, School of Basic Medical Sciences, Health Science Centre, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P. R. China
| | - Caiting Meng
- Department of Biophysics, School of Basic Medical Sciences, Health Science Centre, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P. R. China
| | - Guanying Li
- Department of Biophysics, School of Basic Medical Sciences, Health Science Centre, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P. R. China
- The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P. R. China
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3
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Min J, Rong X, Zhang J, Su R, Wang Y, Qi W. Computational Design of Peptide Assemblies. J Chem Theory Comput 2024; 20:532-550. [PMID: 38206800 DOI: 10.1021/acs.jctc.3c01054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
With the ongoing development of peptide self-assembling materials, there is growing interest in exploring novel functional peptide sequences. From short peptides to long polypeptides, as the functionality increases, the sequence space is also expanding exponentially. Consequently, attempting to explore all functional sequences comprehensively through experience and experiments alone has become impractical. By utilizing computational methods, especially artificial intelligence enhanced molecular dynamics (MD) simulation and de novo peptide design, there has been a significant expansion in the exploration of sequence space. Through these methods, a variety of supramolecular functional materials, including fibers, two-dimensional arrays, nanocages, etc., have been designed by meticulously controlling the inter- and intramolecular interactions. In this review, we first provide a brief overview of the current main computational methods and then focus on the computational design methods for various self-assembled peptide materials. Additionally, we introduce some representative protein self-assemblies to offer guidance for the design of self-assembling peptides.
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Affiliation(s)
- Jiwei Min
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Xi Rong
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Jiaxing Zhang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Rongxin Su
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072, P. R. China
| | - Yuefei Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072, P. R. China
| | - Wei Qi
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072, P. R. China
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4
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Wang Y, Rencus-Lazar S, Zhou H, Yin Y, Jiang X, Cai K, Gazit E, Ji W. Bioinspired Amino Acid Based Materials in Bionanotechnology: From Minimalistic Building Blocks and Assembly Mechanism to Applications. ACS NANO 2024; 18:1257-1288. [PMID: 38157317 DOI: 10.1021/acsnano.3c08183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Inspired by natural hierarchical self-assembly of proteins and peptides, amino acids, as the basic building units, have been shown to self-assemble to form highly ordered structures through supramolecular interactions. The fabrication of functional biomaterials comprised of extremely simple biomolecules has gained increasing interest due to the advantages of biocompatibility, easy functionalization, and structural modularity. In particular, amino acid based assemblies have shown attractive physical characteristics for various bionanotechnology applications. Herein, we propose a review paper to summarize the design strategies as well as research advances of amino acid based supramolecular assemblies as smart functional materials. We first briefly introduce bioinspired reductionist design strategies and assembly mechanism for amino acid based molecular assembly materials through noncovalent interactions in condensed states, including self-assembly, metal ion mediated coordination assembly, and coassembly. In the following part, we provide an overview of the properties and functions of amino acid based materials toward applications in nanotechnology and biomedicine. Finally, we give an overview of the remaining challenges and future perspectives on the fabrication of amino acid based supramolecular biomaterials with desired properties. We believe that this review will promote the prosperous development of innovative bioinspired functional materials formed by minimalistic building blocks.
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Affiliation(s)
- Yuehui Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Sigal Rencus-Lazar
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Haoran Zhou
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Yuanyuan Yin
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, People's Republic of China
| | - Xuemei Jiang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Ehud Gazit
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Wei Ji
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, People's Republic of China
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5
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Gunay G, Maier KN, Hamsici S, Carvalho F, Timog TA, Acar H. Peptide aggregation-induced immunogenic cell death in a breast cancer spheroid model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.31.565012. [PMID: 37961293 PMCID: PMC10635027 DOI: 10.1101/2023.10.31.565012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Utilizing multicellular aggregates (spheroids) for in vitro cancer research offers a physiologically relevant model that closely mirrors the intricate tumor microenvironment, capturing properties of solid tumors such as cell interactions and drug resistance. In this research, we investigated the Peptide-Aggregation Induced Immunogenic Response (PAIIR), an innovative method employing engineered peptides we designed specifically to induce immunogenic cell death (ICD). We contrasted PAIIR-induced ICD with standard ICD and non-ICD inducer chemotherapeutics within the context of three-dimensional breast cancer tumor spheroids. Our findings reveal that PAIIR outperforms traditional chemotherapeutics in its efficacy to stimulate ICD. This is marked by the release of key damage-associated molecular patterns (DAMPs), which bolster the phagocytic clearance of dying cancer cells by dendritic cells (DCs) and, in turn, activate powerful anti-tumor immune responses. Additionally, we observed that PAIIR results in elevated dendritic cell activation and increased antitumor cytokine presence. This study not only showcases the utility of tumor spheroids for efficient high-throughput screening but also emphasizes PAIIR's potential as a formidable immunotherapeutic strategy against breast cancer, setting the stage for deeper exploration and potential clinical implementation.
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6
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Falcone N, Ermis M, Tamay DG, Mecwan M, Monirizad M, Mathes TG, Jucaud V, Choroomi A, de Barros NR, Zhu Y, Vrana NE, Kraatz HB, Kim HJ, Khademhosseini A. Peptide Hydrogels as Immunomaterials and Their Use in Cancer Immunotherapy Delivery. Adv Healthc Mater 2023; 12:e2301096. [PMID: 37256647 PMCID: PMC10615713 DOI: 10.1002/adhm.202301096] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/15/2023] [Indexed: 06/01/2023]
Abstract
Peptide-based hydrogel biomaterials have emerged as an excellent strategy for immune system modulation. Peptide-based hydrogels are supramolecular materials that self-assemble into various nanostructures through various interactive forces (i.e., hydrogen bonding and hydrophobic interactions) and respond to microenvironmental stimuli (i.e., pH, temperature). While they have been reported in numerous biomedical applications, they have recently been deemed promising candidates to improve the efficacy of cancer immunotherapies and treatments. Immunotherapies seek to harness the body's immune system to preemptively protect against and treat various diseases, such as cancer. However, their low efficacy rates result in limited patient responses to treatment. Here, the immunomaterial's potential to improve these efficacy rates by either functioning as immune stimulators through direct immune system interactions and/or delivering a range of immune agents is highlighted. The chemical and physical properties of these peptide-based materials that lead to immuno modulation and how one may design a system to achieve desired immune responses in a controllable manner are discussed. Works in the literature that reports peptide hydrogels as adjuvant systems and for the delivery of immunotherapies are highlighted. Finally, the future trends and possible developments based on peptide hydrogels for cancer immunotherapy applications are discussed.
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Affiliation(s)
- Natashya Falcone
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Menekse Ermis
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, 06800, Turkey
| | - Dilara Goksu Tamay
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, 06800, Turkey
- Department of Biotechnology, Middle East Technical University, Ankara, 06800, Turkey
| | - Marvin Mecwan
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Mahsa Monirizad
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Tess Grett Mathes
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Vadim Jucaud
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Auveen Choroomi
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Natan Roberto de Barros
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
| | - Nihal Engin Vrana
- SPARTHA Medical, CRBS 1 Rue Eugene Boeckel, Strasbourg, 67000, France
| | - Heinz-Bernhard Kraatz
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, M5S 3E5, Canada
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON, M1C 1A4, Canada
| | - Han-Jun Kim
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
- College of Pharmacy, Korea University, Sejong, 30019, Republic of Korea
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, CA, 90034, USA
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7
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Dias AMGC, Moreira IP, Lychko I, Lopes Soares C, Nurrito A, Moura Barbosa AJ, Lutz-Bueno V, Mezzenga R, Carvalho AL, Pina AS, Roque ACA. Hierarchical self-assembly of a reflectin-derived peptide. Front Chem 2023; 11:1267563. [PMID: 37810582 PMCID: PMC10552760 DOI: 10.3389/fchem.2023.1267563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/05/2023] [Indexed: 10/10/2023] Open
Abstract
Reflectins are a family of intrinsically disordered proteins involved in cephalopod camouflage, making them an interesting source for bioinspired optical materials. Understanding reflectin assembly into higher-order structures by standard biophysical methods enables the rational design of new materials, but it is difficult due to their low solubility. To address this challenge, we aim to understand the molecular self-assembly mechanism of reflectin's basic unit-the protopeptide sequence YMDMSGYQ-as a means to understand reflectin's assembly phenomena. Protopeptide self-assembly was triggered by different environmental cues, yielding supramolecular hydrogels, and characterized by experimental and theoretical methods. Protopeptide films were also prepared to assess optical properties. Our results support the hypothesis for the protopeptide aggregation model at an atomistic level, led by hydrophilic and hydrophobic interactions mediated by tyrosine residues. Protopeptide-derived films were optically active, presenting diffuse reflectance in the visible region of the light spectrum. Hence, these results contribute to a better understanding of the protopeptide structural assembly, crucial for the design of peptide- and reflectin-based functional materials.
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Affiliation(s)
- Ana Margarida Gonçalves Carvalho Dias
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Inês Pimentel Moreira
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Iana Lychko
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Cátia Lopes Soares
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Arianna Nurrito
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Arménio Jorge Moura Barbosa
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Viviane Lutz-Bueno
- Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland
- Paul Scherrer Institute, Villigen, Switzerland
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland
| | - Ana Luísa Carvalho
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Ana Sofia Pina
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - Ana Cecília Afonso Roque
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Department of Chemistry, School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
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8
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Lim S, Cordova DLM, Robang AS, Kuang Y, Ogura KS, Paravastu AK, Arguilla MQ, Ardoña HAM. Thermochromic Behavior of Polydiacetylene Nanomaterials Driven by Charged Peptide Amphiphiles. Biomacromolecules 2023; 24:4051-4063. [PMID: 37552220 PMCID: PMC10498447 DOI: 10.1021/acs.biomac.3c00422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/18/2023] [Indexed: 08/09/2023]
Abstract
The tunability of chromatic phases adapted by chromogenic polymers such as polydiacetylene (PDA) is key to their utility for robust sensing applications. Here, we investigated the influence of charged peptide interactions on the structure-dependent thermochromicity of amphiphilic PDAs. Solid-state NMR and circular dichroism analyses show that our oppositely charged peptide-PDA samples have distinct degrees of structural order, with the coassembled sample being in between the β-sheet-like positive peptide-PDA and the relatively disordered negative peptide-PDA. All solutions exhibit thermochromicity between 20 and 80 °C, whereby the hysteresis of the blue, planar phase is much larger than that of the red, twisted phase. Resonance Raman spectroscopy of films demonstrates that only coassemblies with electrostatic complementarity stabilize coexisting blue and red PDA phases. This work reveals the nature of the structural changes responsible for the thermally responsive chromatic transitions of biomolecule-functionalized polymeric materials and how this process can be directed by sequence-dictated electrostatic interactions.
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Affiliation(s)
- Sujeung Lim
- Department
of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, California 92697, United States
| | - Dmitri Leo M. Cordova
- Department
of Chemistry, School of Physical Sciences, University of California, Irvine, California 92697, United States
| | - Alicia S. Robang
- School
of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Yuyao Kuang
- Department
of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, California 92697, United States
| | - Kaleolani S. Ogura
- Department
of Chemistry, School of Physical Sciences, University of California, Irvine, California 92697, United States
| | - Anant K. Paravastu
- School
of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Maxx Q. Arguilla
- Department
of Chemistry, School of Physical Sciences, University of California, Irvine, California 92697, United States
| | - Herdeline Ann M. Ardoña
- Department
of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, California 92697, United States
- Department
of Chemistry, School of Physical Sciences, University of California, Irvine, California 92697, United States
- Department
of Biomedical Engineering, Samueli School of Engineering, University of California, Irvine, California 92697, United States
- Sue
& Bill Gross Stem Cell Research Center, University of California, Irvine, California 92697, United States
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9
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Chi-Uluac LA, Asgharpour S, Blanco-Rodríguez RG, Martínez-Archundia M. Atomistic Molecular Insights into Angiotensin-(1-7) Interpeptide Interactions. J Chem Inf Model 2023; 63:5331-5340. [PMID: 37589289 DOI: 10.1021/acs.jcim.3c00478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Angiotensin-(1-7) is an endogenous peptide known for its vasoprotective, antioxidant, and anti-inflammatory effects, making it a promising therapeutic candidate for various clinical conditions. However, the peptide exhibits pH-dependent physical instability in aqueous solutions, and a comprehensive atomistic study elucidating this behavior and its implications is currently lacking. Therefore, we performed all-atom molecular dynamics simulations to investigate the early formation of angiotensin-(1-7) oligomeric aggregates under different conditions: acidic and neutral pH-like conditions, physiological and high ionic strength, and high and low peptide concentrations. Our results are as follows: (1) under acidic pH-like conditions, angiotensin-(1-7) showed minimal clustering, (2) under neutral pH-like conditions, the peptides aggregated into a single cluster, consistent with the reported physical instability, and (3) increasing salt concentration under acidic pH-like conditions resulted in aggregation similar to that observed under neutral pH-like conditions. These results suggest that a combination of salt concentration and pH conditions can modulate angiotensin-(1-7) aggregation. Our protocol (molecular dynamics + cluster analysis + amino acid interaction map analysis) is general and could be applied to other peptides to study interpeptide interaction mechanisms.
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Affiliation(s)
- Luz América Chi-Uluac
- Laboratory for the Design and Development of New Drugs and Biotechnological Innovation, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Ciudad de México 11340, Mexico
- Institute for Modeling Collaboration and Innovation, University of Idaho, Moscow, Idaho 83844-1103, United States
| | - Somayeh Asgharpour
- IAS-5/INM-9, Computational Biomedicine, Forschungszentrum Jülich, Wilhelm-Johnen-Strasse, 52428 Jülich, Germany
| | - Rodolfo Guadalupe Blanco-Rodríguez
- Institute for Modeling Collaboration and Innovation, University of Idaho, Moscow, Idaho 83844-1103, United States
- Department of Mathematics and Statistical Science, University of Idaho, Moscow, Idaho 83844-1103, United States
| | - Marlet Martínez-Archundia
- Laboratory for the Design and Development of New Drugs and Biotechnological Innovation, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Ciudad de México 11340, Mexico
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10
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Kuang Y, Yao ZF, Lim S, Ngo C, Rocha MA, Fishman DA, Ardoña HAM. Biomimetic Sequence-Templating Approach toward a Multiscale Modulation of Chromogenic Polymer Properties. Macromolecules 2023; 56:4526-4540. [PMID: 37397164 PMCID: PMC10311629 DOI: 10.1021/acs.macromol.3c00403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 05/28/2023] [Indexed: 07/04/2023]
Abstract
Precision control via molecular structure over adaptive conjugated polymer properties in aqueous environments is critical for realizing their biomedical applications. Here, we unravel the dependence of amphiphilic peptide-polydiacetylene (PDA) conjugate properties on the characteristic steric and hydrophobic contributions within peptide segments that serve as a biomimetic template for diacetylene polymerization in water. We investigated the functional impacts of molecular volume and polarity changes brought by dipeptide substitution domains on the following peptide-PDA material properties at multiple length scales: supramolecular assembly behavior, chain conformation-dependent photophysical properties, cell-material interfacing, and for the first time, bulk electrical properties of their films processed in water. A library of peptide-PDAs with systematically varied sequences show that the contributions of steric effects predominantly influence the electronic structure and resulting trends in photophysical properties, while the interplay between size and hydrophobicity of individual residues becomes more significant for higher-order assemblies affecting bulk properties. This work demonstrates sequence-tunable molecular volume and polarity as synthetic handles to rationally modulate PDA material properties across length scales, providing insights into the programmability of biomimetic conjugated polymers with adaptive functionalities.
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Affiliation(s)
- Yuyao Kuang
- Department
of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, Irvine, California 92697, United States
| | - Ze-Fan Yao
- Department
of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, Irvine, California 92697, United States
- Department
of Biomedical Engineering, Samueli School of Engineering, University of California, Irvine, Irvine, California 92697, United States
| | - Sujeung Lim
- Department
of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, Irvine, California 92697, United States
| | - Catherine Ngo
- Department
of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, Irvine, California 92697, United States
| | - Megan Alma Rocha
- Department
of Chemistry, School of Physical Sciences, University of California, Irvine, Irvine, California 92697, United States
| | - Dmitry A. Fishman
- Department
of Chemistry, School of Physical Sciences, University of California, Irvine, Irvine, California 92697, United States
| | - Herdeline Ann M. Ardoña
- Department
of Chemical and Biomolecular Engineering, Samueli School of Engineering, University of California, Irvine, Irvine, California 92697, United States
- Department
of Biomedical Engineering, Samueli School of Engineering, University of California, Irvine, Irvine, California 92697, United States
- Department
of Chemistry, School of Physical Sciences, University of California, Irvine, Irvine, California 92697, United States
- Sue
& Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, California 92697, United States
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11
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Warren JP, Culbert MP, Miles DE, Maude S, Wilcox RK, Beales PA. Controlling the Self-Assembly and Material Properties of β-Sheet Peptide Hydrogels by Modulating Intermolecular Interactions. Gels 2023; 9:441. [PMID: 37367112 DOI: 10.3390/gels9060441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/19/2023] [Accepted: 05/21/2023] [Indexed: 06/28/2023] Open
Abstract
Self-assembling peptides are a promising biomaterial with potential applications in medical devices and drug delivery. In the right combination of conditions, self-assembling peptides can form self-supporting hydrogels. Here, we describe how balancing attractive and repulsive intermolecular forces is critical for successful hydrogel formation. Electrostatic repulsion is tuned by altering the peptide's net charge, and intermolecular attractions are controlled through the degree of hydrogen bonding between specific amino acid residues. We find that an overall net peptide charge of +/-2 is optimal to facilitate the assembly of self-supporting hydrogels. If the net peptide charge is too low then dense aggregates form, while a high molecular charge inhibits the formation of larger structures. At a constant charge, altering the terminal amino acids from glutamine to serine decreases the degree of hydrogen bonding within the assembling network. This tunes the viscoelastic properties of the gel, reducing the elastic modulus by two to three orders of magnitude. Finally, hydrogels could be formed from glutamine-rich, highly charged peptides by mixing the peptides in combinations with a resultant net charge of +/-2. These results illustrate how understanding and controlling self-assembly mechanisms through modulating intermolecular interactions can be exploited to derive a range of structures with tuneable properties.
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Affiliation(s)
- James P Warren
- School of Chemistry, University of Leeds, Leeds LS2 9JT, UK
- School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, UK
- Institute of Medical and Biological Engineering, University of Leeds, Leeds LS2 9JT, UK
- Bragg Centre for Materials Research, University of Leeds, Leeds LS2 9JT, UK
| | - Matthew P Culbert
- School of Chemistry, University of Leeds, Leeds LS2 9JT, UK
- School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, UK
- Institute of Medical and Biological Engineering, University of Leeds, Leeds LS2 9JT, UK
| | - Danielle E Miles
- School of Chemistry, University of Leeds, Leeds LS2 9JT, UK
- School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, UK
- Institute of Medical and Biological Engineering, University of Leeds, Leeds LS2 9JT, UK
| | - Steven Maude
- School of Chemistry, University of Leeds, Leeds LS2 9JT, UK
| | - Ruth K Wilcox
- School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, UK
- Institute of Medical and Biological Engineering, University of Leeds, Leeds LS2 9JT, UK
| | - Paul A Beales
- School of Chemistry, University of Leeds, Leeds LS2 9JT, UK
- Bragg Centre for Materials Research, University of Leeds, Leeds LS2 9JT, UK
- Astbury Centre for Structural Biology, University of Leeds, Leeds LS2 9JT, UK
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12
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Ji J, Hossain MS, Krueger EN, Zhang Z, Nangia S, Carpentier B, Martel M, Nangia S, Mozhdehi D. Lipidation Alters the Structure and Hydration of Myristoylated Intrinsically Disordered Proteins. Biomacromolecules 2023; 24:1244-1257. [PMID: 36757021 PMCID: PMC10017028 DOI: 10.1021/acs.biomac.2c01309] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/25/2023] [Indexed: 02/10/2023]
Abstract
Lipidated proteins are an emerging class of hybrid biomaterials that can integrate the functional capabilities of proteins into precisely engineered nano-biomaterials with potential applications in biotechnology, nanoscience, and biomedical engineering. For instance, fatty-acid-modified elastin-like polypeptides (FAMEs) combine the hierarchical assembly of lipids with the thermoresponsive character of elastin-like polypeptides (ELPs) to form nanocarriers with emergent temperature-dependent structural (shape or size) characteristics. Here, we report the biophysical underpinnings of thermoresponsive behavior of FAMEs using computational nanoscopy, spectroscopy, scattering, and microscopy. This integrated approach revealed that temperature and molecular syntax alter the structure, contact, and hydration of lipid, lipidation site, and protein, aligning with the changes in the nanomorphology of FAMEs. These findings enable a better understanding of the biophysical consequence of lipidation in biology and the rational design of the biomaterials and therapeutics that rival the exquisite hierarchy and capabilities of biological systems.
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Affiliation(s)
- Jingjing Ji
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
| | - Md Shahadat Hossain
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Emily N. Krueger
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Zhe Zhang
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Shivangi Nangia
- Department
of Chemistry, University of Hartford, West Hartford, Connecticut 06117, United States
| | - Britnie Carpentier
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
| | - Mae Martel
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
| | - Shikha Nangia
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
- BioInspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
| | - Davoud Mozhdehi
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
- BioInspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
- Department
of Biology, Syracuse University, Syracuse, New York 13244, United States
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13
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Li Q, Wang Y, Zhang G, Su R, Qi W. Biomimetic mineralization based on self-assembling peptides. Chem Soc Rev 2023; 52:1549-1590. [PMID: 36602188 DOI: 10.1039/d2cs00725h] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Biomimetic science has attracted great interest in the fields of chemistry, biology, materials science, and energy. Biomimetic mineralization is the process of synthesizing inorganic minerals under the control of organic molecules or biomolecules under mild conditions. Peptides are the motifs that constitute proteins, and can self-assemble into various hierarchical structures and show a high affinity for inorganic substances. Therefore, peptides can be used as building blocks for the synthesis of functional biomimetic materials. With the participation of peptides, the morphology, size, and composition of mineralized materials can be controlled precisely. Peptides not only provide well-defined templates for the nucleation and growth of inorganic nanomaterials but also have the potential to confer inorganic nanomaterials with high catalytic efficiency, selectivity, and biotherapeutic functions. In this review, we systematically summarize research progress in the formation mechanism, nanostructural manipulation, and applications of peptide-templated mineralized materials. These can further inspire researchers to design structurally complex and functionalized biomimetic materials with great promising applications.
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Affiliation(s)
- Qing Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China.
| | - Yuefei Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Gong Zhang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou Industrial Park, Suzhou 215123, P. R. China
| | - Rongxin Su
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China.,Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Wei Qi
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China. .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China.,Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, P. R. China
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14
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Hamsici S, Gunay G, Acar H. Controllable membrane damage by tunable peptide aggregation with albumin. AIChE J 2022; 68:e17893. [PMID: 36816052 PMCID: PMC9937546 DOI: 10.1002/aic.17893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Aggregation of otherwise soluble proteins into amyloid structures is a hallmark of many disorders, such as Alzheimer's and Parkinson's disease. There is an increasing evidence that the small aggregations, instead of ordered fibrillar aggregates, are the main structures causing toxicity. However, the studies on the small aggregation phase are limited due to the variety of structures and the complexity of the physiological environment. Here, we showed an engineered co-assembling oppositely charged amyloid-like peptide pair ([II]) as a simple tool to establish methodologies to study the mechanism and kinetics of aggregation and relate its aggregation to toxicity. The toxicity mechanism of [II] is through cell membrane damage and stress, shown with YAP and eIF2α, as in the amyloid protein-initiated diseases. Albumin is demonstrated as an extrinsic and physiologically relevant molecule in controlling the aggregation lag time and toxicity of [II]. This study represents a molecular engineering strategy to create simplistic molecular tools for establishing methodologies to study the aggregation process and kinetics of amyloid-like proteins in various conditions. Understanding the nature of protein aggregation kinetics and linking them to their biological functions through engineered peptides paves the way for future designs and drug development applications.
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Affiliation(s)
- Seren Hamsici
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, USA
| | - Gokhan Gunay
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, USA
| | - Handan Acar
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, USA,Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
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15
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El Hauadi K, Resina L, Zanuy D, Esteves T, Ferreira FC, Pérez-Madrigal MM, Alemán C. Dendritic Self-assembled Structures from Therapeutic Charged Pentapeptides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:12905-12914. [PMID: 36229043 PMCID: PMC9988208 DOI: 10.1021/acs.langmuir.2c02010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/04/2022] [Indexed: 06/16/2023]
Abstract
CRENKA [Cys-Arg-(NMe)Glu-Lys-Ala, where (NMe)Glu refers to N-methyl-Glu], an anti-cancer pentapeptide that induces prostate tumor necrosis and significant reduction in tumor growth, was engineered to increase the resistance to endogenous proteases of its parent peptide, CREKA (Cys-Arg-Glu-Lys-Ala). Considering their high tendency to aggregate, the self-assembly of CRENKA and CREKA into well-defined and ordered structures has been examined as a function of peptide concentration and pH. Spectroscopic studies and atomistic molecular dynamics simulations reveal significant differences between the secondary structures of CREKA and CRENKA. Thus, the restrictions imposed by the (NMe)Glu residue reduce the conformational variability of CRENKA with respect to CREKA, which significantly affects the formation of well-defined and ordered self-assembly morphologies. Aggregates with poorly defined morphology are obtained from solutions with low and moderate CREKA concentrations at pH 4, whereas well-defined dendritic microstructures with fractal geometry are obtained from CRENKA solutions with similar peptide concentrations at pH 4 and 7. The formation of dendritic structures is proposed to follow a two-step mechanism: (1) pseudo-spherical particles are pre-nucleated through a diffusion-limited aggregation process, pre-defining the dendritic geometry, and (2) such pre-nucleated structures coalesce by incorporating conformationally restrained CRENKA molecules from the solution to their surfaces, forming a continuous dendritic structure. Instead, no regular assembly is obtained from solutions with high peptide concentrations, as their dynamics is dominated by strong repulsive peptide-peptide electrostatic interactions, and from solutions at pH 10, in which the total peptide charge is zero. Overall, results demonstrate that dendritic structures are only obtained when the molecular charge of CRENKA, which is controlled through the pH, favors kinetics over thermodynamics during the self-assembly process.
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Affiliation(s)
- Karima El Hauadi
- Departament
d’Enginyeria Química and Barcelona Research Center for
Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany 10-14, Barcelona 08019, Spain
| | - Leonor Resina
- Departament
d’Enginyeria Química and Barcelona Research Center for
Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany 10-14, Barcelona 08019, Spain
- Department
of Bioengineering, iBB − Institute for Bioengineering and Biosciences,
Instituto Superior Técnico, Universidade
de Lisboa, Avenida Rovisco Pais 1, Lisboa 1049-001, Portugal
- Associate
Laboratory i4HB—Institute for Health and Bioeconomy at Instituto
Superior Técnico, Universidade de
Lisboa, Avenida Rovisco Pais 1, Lisboa 1049-001, Portugal
| | - David Zanuy
- Departament
d’Enginyeria Química and Barcelona Research Center for
Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany 10-14, Barcelona 08019, Spain
| | - Teresa Esteves
- Department
of Bioengineering, iBB − Institute for Bioengineering and Biosciences,
Instituto Superior Técnico, Universidade
de Lisboa, Avenida Rovisco Pais 1, Lisboa 1049-001, Portugal
- Associate
Laboratory i4HB—Institute for Health and Bioeconomy at Instituto
Superior Técnico, Universidade de
Lisboa, Avenida Rovisco Pais 1, Lisboa 1049-001, Portugal
| | - Frederico Castelo Ferreira
- Department
of Bioengineering, iBB − Institute for Bioengineering and Biosciences,
Instituto Superior Técnico, Universidade
de Lisboa, Avenida Rovisco Pais 1, Lisboa 1049-001, Portugal
- Associate
Laboratory i4HB—Institute for Health and Bioeconomy at Instituto
Superior Técnico, Universidade de
Lisboa, Avenida Rovisco Pais 1, Lisboa 1049-001, Portugal
| | - Maria M. Pérez-Madrigal
- Departament
d’Enginyeria Química and Barcelona Research Center for
Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany 10-14, Barcelona 08019, Spain
| | - Carlos Alemán
- Departament
d’Enginyeria Química and Barcelona Research Center for
Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya, C/ Eduard Maristany 10-14, Barcelona 08019, Spain
- Institute
for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona 08028, Spain
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16
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Wei Y, Zhang J, Liu X. Surfactant-Assisted Assembly of Dipeptide Forming a Broom-like Structure. Molecules 2022; 27:molecules27154876. [PMID: 35956826 PMCID: PMC9369827 DOI: 10.3390/molecules27154876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 11/16/2022] Open
Abstract
Understanding the influence of surfactants on the assembly of peptides has a considerable practical motivation. In this paper, we systematically study the anionic surfactant-assisted assembly of diphenylalanine (FF). FF forms broom-like structures in a concentration of sodium cholate (NaC) around the CMC, and assembles into linear and unidirectional rods in the presence of low and high surfactant concentrations. FF’s improved hydrogen bonding and controlled assembly rates are appropriate for other anionic surfactants. At this stage, the use of FF as the simplest protein consequence can be helpful in the investigation of further protein–surfactant interactions.
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17
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Gunay G, Hamsici S, Lang GA, Lang ML, Kovats S, Acar H. Peptide Aggregation Induced Immunogenic Rupture (PAIIR). ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105868. [PMID: 35599386 PMCID: PMC9313945 DOI: 10.1002/advs.202105868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/06/2022] [Indexed: 05/11/2023]
Abstract
Immunogenic cell death (ICD) arises when cells are under stress, and their membranes are damaged. They release damage-associated molecular patterns (DAMPs) that stimulate and drive the type and magnitude of the immune response. In the presence of an antigen, DAMPs ride the longevity and efficacy of antigen-specific immunity. Yet, no tool can induce the controlled ICD with predictable results. A peptide-based tool, [II], is designed that aggregates in the cell and causes cell membrane damage, generates ICD and DAMPs release on various cell types, and hence can act as an adjuvant. An influenza vaccine is prepared by combining [II] with influenza hemagglutinin (HA) subunit antigens. The results show that [II] induced significantly higher HA-specific immunoglobulin G1 (IgG1) and IgG2a antibodies than HA-only immunized mice, while the peptide itself did not elicit antibodies. This paper demonstrates the first peptide-aggregation induced immunogenic rupture (PAIIR) approach as a vaccine adjuvant. PAIIR is a promising adjuvant with a high potential to promote universal protection upon influenza HA vaccination.
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Affiliation(s)
- Gokhan Gunay
- Stephenson School of Biomedical EngineeringUniversity of OklahomaNormanOK73069USA
| | - Seren Hamsici
- Stephenson School of Biomedical EngineeringUniversity of OklahomaNormanOK73069USA
| | - Gillian A. Lang
- Department of Microbiology and ImmunologyUniversity of Oklahoma Health Sciences CenterOklahoma CityOK73104USA
| | - Mark L. Lang
- Department of Microbiology and ImmunologyUniversity of Oklahoma Health Sciences CenterOklahoma CityOK73104USA
| | - Susan Kovats
- Department of Microbiology and ImmunologyUniversity of Oklahoma Health Sciences CenterOklahoma CityOK73104USA
- Arthritis & Clinical Immunology ProgramOklahoma Medical Research FoundationOklahoma CityOK73104USA
| | - Handan Acar
- Stephenson School of Biomedical EngineeringUniversity of OklahomaNormanOK73069USA
- Stephenson Cancer CenterUniversity of Oklahoma Health Sciences CenterOklahoma CityOK73104USA
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