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Roy A, Dodd-O JB, Robang AS, He D, West O, Siddiqui Z, Aguas ED, Goldberg H, Griffith A, Heffernan C, Hu Y, Paravastu AK, Kumar VA. Self-Assembling Peptides with Insulin-Like Growth Factor Mimicry. ACS APPLIED MATERIALS & INTERFACES 2024; 16:364-375. [PMID: 38145951 DOI: 10.1021/acsami.3c15660] [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: 12/27/2023]
Abstract
Growth factor (GF) mimicry involves recapitulating the signaling of larger molecules or cells. Although GF mimicry holds considerable promise in tissue engineering and drug design applications, difficulties in targeting the signaling molecule to the site of delivery and dissociation of mimicking peptides from their target receptors continue to limit its clinical application. To address these challenges, we utilized a self-assembling peptide (SAP) platform to generate synthetic insulin-like growth factor (IGF)-signaling, self-assembling GFs. Our peptide hydrogels are biocompatible and bind target IGF receptors in a dose-dependent fashion, activate proangiogenic signaling, and facilitate formation of angiogenic microtubules in vitro. Furthermore, infiltrated hydrogels are stable for weeks to months. We conclude that the enhanced targeting and long-term stability of our SAP/GF mimicry implants may improve the efficacy and safety of future GF mimic therapeutics.
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Affiliation(s)
- Abhishek Roy
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Joseph B Dodd-O
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Alicia S Robang
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Dongjing He
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Owen West
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Zain Siddiqui
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Erika Davidoff Aguas
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey 08544, United States
| | - Hannah Goldberg
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Alexandra Griffith
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Corey Heffernan
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Yuhang Hu
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Anant K Paravastu
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Vivek A Kumar
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
- Department of Biological Sciences, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
- Department of Endodontics, Rutgers School of Dental Medicine, Newark, New Jersey 07103, United States
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Yao X, Hu Y, Lin M, Peng K, Wang P, Gao Y, Gao X, Guo T, Zhang X, Zhou H. Self-assembling peptide RADA16: a promising scaffold for tissue engineering and regenerative medicine. Nanomedicine (Lond) 2023. [PMID: 37750388 DOI: 10.2217/nnm-2023-0161] [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: 09/27/2023] Open
Abstract
RADA16 is a peptide-based biomaterial whose acidic aqueous solution spontaneously forms an extracellular matrix-like 3D structure within seconds upon contact with physiological pH body fluids. Meanwhile, its good biocompatibility, low immunogenicity, nontoxic degradation products and ease of modification make it an ideal scaffold for tissue engineering. RADA16 is a good delivery vehicle for cells, drugs and factors. Its shear thinning and thixotropic properties allow it to fill tissue voids by injection and not to swell. However, the weaker mechanical properties and poor hydrophilicity are troubling limitations of RADA16. To compensate for this limitation, various functional groups and polymers have been designed to modify RADA16, thus contributing to its scope and progress in the field of tissue engineering.
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Affiliation(s)
- Xin Yao
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China
- Key Laboratory of Bone & Joint Disease Research of Gansu Provincial, Lanzhou 730030, Gansu, China
| | - Yicun Hu
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China
- Key Laboratory of Bone & Joint Disease Research of Gansu Provincial, Lanzhou 730030, Gansu, China
| | - Maoqiang Lin
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China
- Key Laboratory of Bone & Joint Disease Research of Gansu Provincial, Lanzhou 730030, Gansu, China
| | - Kaichen Peng
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China
- Key Laboratory of Bone & Joint Disease Research of Gansu Provincial, Lanzhou 730030, Gansu, China
| | - Peng Wang
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China
- Key Laboratory of Bone & Joint Disease Research of Gansu Provincial, Lanzhou 730030, Gansu, China
| | - Yanbing Gao
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China
- Key Laboratory of Bone & Joint Disease Research of Gansu Provincial, Lanzhou 730030, Gansu, China
| | - Xidan Gao
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710000, Shaanxi, China
| | - Taowen Guo
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China
- Key Laboratory of Bone & Joint Disease Research of Gansu Provincial, Lanzhou 730030, Gansu, China
| | - Xiaobo Zhang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710000, Shaanxi, China
| | - Haiyu Zhou
- Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou 730030, Gansu, China
- Key Laboratory of Bone & Joint Disease Research of Gansu Provincial, Lanzhou 730030, Gansu, China
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Yang Z, Chen L, Liu J, Zhuang H, Lin W, Li C, Zhao X. Short Peptide Nanofiber Biomaterials Ameliorate Local Hemostatic Capacity of Surgical Materials and Intraoperative Hemostatic Applications in Clinics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301849. [PMID: 36942893 DOI: 10.1002/adma.202301849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/12/2023] [Indexed: 06/18/2023]
Abstract
Short designer self-assembling peptide (dSAP) biomaterials are a new addition to the hemostat group. It may provide a diverse and robust toolbox for surgeons to integrate wound microenvironment with much safer and stronger hemostatic capacity than conventional materials and hemostatic agents. Especially in noncompressible torso hemorrhage (NCTH), diffuse mucosal surface bleeding, and internal medical bleeding (IMB), with respect to the optimal hemostatic formulation, dSAP biomaterials are the ingenious nanofiber alternatives to make bioactive neural scaffold, nasal packing, large mucosal surface coverage in gastrointestinal surgery (esophagus, gastric lesion, duodenum, and lower digestive tract), epicardiac cell-delivery carrier, transparent matrix barrier, and so on. Herein, in multiple surgical specialties, dSAP-biomaterial-based nano-hemostats achieve safe, effective, and immediate hemostasis, facile wound healing, and potentially reduce the risks in delayed bleeding, rebleeding, post-operative bleeding, or related complications. The biosafety in vivo, bleeding indications, tissue-sealing quality, surgical feasibility, and local usability are addressed comprehensively and sequentially and pursued to develop useful surgical techniques with better hemostatic performance. Here, the state of the art and all-round advancements of nano-hemostatic approaches in surgery are provided. Relevant critical insights will inspire exciting investigations on peptide nanotechnology, next-generation biomaterials, and better promising prospects in clinics.
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Affiliation(s)
- Zehong Yang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, China
- Institute for Nanobiomedical Technology and Membrane Biology, West China Hospital of Sichuan University, Chengdu, Sichuan, 610041, China
| | - Lihong Chen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Ji Liu
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Hua Zhuang
- Department of Ultrasonography, West China Hospital of Sichuan University, No. 37 Guoxue Road, Wuhou District, Chengdu, Sichuan, 610041, China
| | - Wei Lin
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Women and Children Diseases of the Ministry of Education, Sichuan University, No. 17 People's South Road, Chengdu, Sichuan, 610041, China
| | - Changlong Li
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xiaojun Zhao
- Institute for Nanobiomedical Technology and Membrane Biology, West China Hospital of Sichuan University, Chengdu, Sichuan, 610041, China
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Cunningham N, Lapointe R, Lerouge S. Biomaterials for enhanced immunotherapy. APL Bioeng 2022; 6:041502. [PMID: 36561511 PMCID: PMC9767681 DOI: 10.1063/5.0125692] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
Cancer immunotherapies have revolutionized the treatment of numerous cancers, with exciting results often superior to conventional treatments, such as surgery and chemotherapy. Despite this success, limitations such as limited treatment persistence and toxic side effects remain to be addressed to further improve treatment efficacy. Biomaterials offer numerous advantages in the concentration, localization and controlled release of drugs, cancer antigens, and immune cells in order to improve the efficacy of these immunotherapies. This review summarizes and highlights the most recent advances in the use of biomaterials for immunotherapies including drug delivery and cancer vaccines, with a particular focus on biomaterials for immune cell delivery.
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Xu F, Xu B, Chen H, Ju X, Gonzalez de Mejia E. Enhancement of DPP-IV inhibitory activity and the capacity for enabling GLP-1 secretion through RADA16-assisted molecular designed rapeseed peptide nanogels. Food Funct 2022; 13:5215-5228. [PMID: 35438092 DOI: 10.1039/d1fo04367f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The potential of pentapeptide IPQVS (RAP1) and octapeptide ELHQEEPL (RAP2) derived from rapeseed napin as natural dipeptidyl-peptidase IV (DPP-IV) inhibitors is promising. The objective was to develop a nanogel strategy to resist the hydrolysis of digestive and intestinal enzymes to enhance the DPP-IV inhibitory activity of RAP1 and RAP2, and stimulate glucagon-like peptide 1 (GLP-1) secretion of RAP2 by a RADA16-assisted molecular design. The linker of double Gly was used in the connection of RADA16 and the functional oligopeptide region (RAP1 and RAP2). Compared to the original oligopeptides, DPP-IV IC50 of the nanogels RADA16-RAP1 and RADA16-RAP2 decreased by 26.43% and 17.46% in Caco-2 cell monolayers, respectively. The results showed that the two nanogel peptides with no toxicity to cells had higher contents of stable β-sheet structures (increased by 5.6-fold and 5.2-fold, respectively) than the original oligopeptides, and a self-assembled fibrous morphology. Rheological results suggested that the nanogels RADA16-RAP1 and RADA16-RAP2 exhibit good rheological properties for potential injectable applications; the storage modulus (G') was 10 times higher than the low modulus (G''). Furthermore, the RAP2 and its RADA16-assisted nanogel peptide at the concentration of 250 μM significantly (P < 0.05) increased the release of GLP-1 by 35.46% through the calcium-sensing receptor pathway in the enteroendocrine STC-1 cells. Hence, the innovative and harmless nanogels with the sequence of RADA16-GG-Xn have the potential for use by oral and injection administration for treating or relieving type 2 diabetes.
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Affiliation(s)
- Feiran Xu
- Engineering Research Center of Bio-process, Ministry of Education, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China.,Department of Food Science and Human Nutrition, Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, 228 Edward R. Madigan Laboratory (ERML), 1201 West Gregory Drive, Urbana, Illinois 61801, USA.
| | - Baocai Xu
- Engineering Research Center of Bio-process, Ministry of Education, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, People's Republic of China
| | - Hong Chen
- Department of Food Science and Human Nutrition, Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, 228 Edward R. Madigan Laboratory (ERML), 1201 West Gregory Drive, Urbana, Illinois 61801, USA.
| | - Xingrong Ju
- National Engineering Laboratory for Cereal Fermentation Technology, State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Elvira Gonzalez de Mejia
- Department of Food Science and Human Nutrition, Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, 228 Edward R. Madigan Laboratory (ERML), 1201 West Gregory Drive, Urbana, Illinois 61801, USA.
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6
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Athiyarath V, Madhusudhanan MC, Kunnikuruvan S, Sureshan KM. Secondary Structure Tuning of a Pseudoprotein Between β‐Meander and α‐Helical Forms in the Solid‐State. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Vignesh Athiyarath
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
| | - Mithun C. Madhusudhanan
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
| | - Sooraj Kunnikuruvan
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
| | - Kana M. Sureshan
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
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7
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Athiyarath V, Madhusudhanan MC, Kunnikuruvan S, Sureshan KM. Secondary Structure Tuning of a Pseudoprotein Between β-Meander and α-Helical Forms in the Solid-State. Angew Chem Int Ed Engl 2021; 61:e202113129. [PMID: 34699112 DOI: 10.1002/anie.202113129] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Indexed: 12/23/2022]
Abstract
Tuning the secondary structure of a protein or polymer in the solid-state is challenging. Here we report the topochemical synthesis of a pseudoprotein and its secondary structure tuning in the solid-state. We designed the dipeptide monomer N3 -Leu-Ala-NH-CH2 -C≡CH (1) for topochemical azide-alkyne cycloaddition (TAAC) polymerization. Dipeptide 1 adopts an anti-parallel β-sheet-like stacked arrangement in its crystals. Upon heating, the dipeptide undergoes quantitative TAAC polymerization in a crystal-to-crystal fashion yielding large polymers. The reaction occurs between the adjacent monomers in the H-bonded anti-parallel stack, yielding pseudoprotein having a β-meander structure. When dissolved in methanol, this pseudoprotein changes its secondary structure from β-meander to α-helical form and it retains the new secondary structure upon desolvation. This work demonstrates a novel paradigm for tuning the secondary structure of a polymer in the solid-state.
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Affiliation(s)
- Vignesh Athiyarath
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala, 695551, India
| | - Mithun C Madhusudhanan
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala, 695551, India
| | - Sooraj Kunnikuruvan
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala, 695551, India
| | - Kana M Sureshan
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala, 695551, India
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8
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Wei S, Chen F, Geng Z, Cui R, Zhao Y, Liu C. Self-assembling RATEA16 peptide nanofiber designed for rapid hemostasis. J Mater Chem B 2020; 8:1897-1905. [DOI: 10.1039/c9tb02590a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In this study, we synthesized a novel polypeptide material, RATEA16, by the solid phase method, and investigated the secondary structure, self-assembly performance, gelation ability, biocompatibility and hemostatic efficiencyin vitroandin vivo.
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Affiliation(s)
- Shuda Wei
- Engineering Research Center for Biomedical Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Fangping Chen
- Engineering Research Center for Biomedical Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
- The State Key Laboratory of Bioreactor Engineering
| | - Zhen Geng
- Engineering Research Center for Biomedical Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Ruihua Cui
- Engineering Research Center for Biomedical Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yujiao Zhao
- Engineering Research Center for Biomedical Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Changsheng Liu
- Engineering Research Center for Biomedical Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
- The State Key Laboratory of Bioreactor Engineering
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Wang Y, Wang J, Zheng J, Yu M, Cai L, Zhang S, Li J. Ectopic osteogenesis by type I collagen loaded with a novel synthesized PTH‐related peptide‐1 in vivo. J Biomed Mater Res A 2019; 108:166-177. [PMID: 31581365 DOI: 10.1002/jbm.a.36802] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 09/13/2019] [Accepted: 09/16/2019] [Indexed: 01/08/2023]
Affiliation(s)
- Yi Wang
- Department of OrthopedicsZhongnan Hospital of Wuhan University Wuhan Hubei People's Republic of China
| | - Jianping Wang
- Department of OrthopedicsZhongnan Hospital of Wuhan University Wuhan Hubei People's Republic of China
| | - Jin Zheng
- Department of NeurologyUnion Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan Hubei People's Republic of China
| | - Mingxia Yu
- Department of Clinical LaboratoryZhongnan Hospital of Wuhan University Wuhan Hubei People's Republic of China
| | - Lin Cai
- Department of OrthopedicsZhongnan Hospital of Wuhan University Wuhan Hubei People's Republic of China
| | - Shuwei Zhang
- Department of OrthopedicsZhongnan Hospital of Wuhan University Wuhan Hubei People's Republic of China
| | - Jingfeng Li
- Department of OrthopedicsZhongnan Hospital of Wuhan University Wuhan Hubei People's Republic of China
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Wang R, Wang Z, Guo Y, Li H, Chen Z. Design of a RADA16-based self-assembling peptide nanofiber scaffold for biomedical applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:713-736. [DOI: 10.1080/09205063.2019.1605868] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Rongrong Wang
- Lab of Tissue Engineering Faculty of Life Science, Northwest University, Xi’an, Shaanxi Province, P.R. China
- Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University, Xi’an, Shaanxi Province, P.R. China
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China Ministry of Education, Northwest University, Xi’an, Shaanxi Province, P.R. China
| | - Zhaoyue Wang
- Lab of Tissue Engineering Faculty of Life Science, Northwest University, Xi’an, Shaanxi Province, P.R. China
- Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University, Xi’an, Shaanxi Province, P.R. China
| | - Yayuan Guo
- Lab of Tissue Engineering Faculty of Life Science, Northwest University, Xi’an, Shaanxi Province, P.R. China
- Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University, Xi’an, Shaanxi Province, P.R. China
| | - Hongmin Li
- Lab of Tissue Engineering Faculty of Life Science, Northwest University, Xi’an, Shaanxi Province, P.R. China
- Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University, Xi’an, Shaanxi Province, P.R. China
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China Ministry of Education, Northwest University, Xi’an, Shaanxi Province, P.R. China
| | - Zhuoyue Chen
- Lab of Tissue Engineering Faculty of Life Science, Northwest University, Xi’an, Shaanxi Province, P.R. China
- Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University, Xi’an, Shaanxi Province, P.R. China
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China Ministry of Education, Northwest University, Xi’an, Shaanxi Province, P.R. China
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Roberts EK, Wong KM, Lee EJ, Le MM, Patel DM, Paravastu AK. Post-assembly α-helix to β-sheet structural transformation within SAF-p1/p2a peptide nanofibers. SOFT MATTER 2018; 14:8986-8996. [PMID: 30375627 DOI: 10.1039/c8sm01754a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report an unanticipated helix-to-sheet structural transformation within an assembly of SAF-p1 and SAF-p2a designer peptides. Solid-state NMR spectroscopic data support the assembled structure that was targeted by rational peptide design: an α-helical coiled-coil co-assembly of both peptides. Subsequent to assembly, however, the system converts to a β-sheet structure that continues to exhibit nearest-neighbor interactions between the two peptide components. The structural transition occurs at pH 7.4 and exhibits strongly temperature-dependent kinetics between room temperature (weeks) and 40 °C (minutes). We further observed evidence of reversibility on the timescale of months at 4 °C. The structural conversion from the anticipated structure to an unexpected structure highlights an important aspect to the challenge of designing peptide assemblies. Furthermore, the conformational switching mechanism mediated by a prerequisite α-helical nanostructure represents a previously unknown route for β-sheet designer peptide assembly.
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Affiliation(s)
- Evan K Roberts
- Department of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
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Nilforoushzadeh MA, Zare M, Zarrintaj P, Alizadeh E, Taghiabadi E, Heidari-Kharaji M, Amirkhani MA, Saeb MR, Mozafari M. Engineering the niche for hair regeneration - A critical review. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 15:70-85. [PMID: 30201489 DOI: 10.1016/j.nano.2018.08.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 07/06/2018] [Accepted: 08/17/2018] [Indexed: 12/14/2022]
Abstract
Recent progress in hair follicle regeneration and alopecia treatment necessitates revisiting the concepts and approaches. In this sense, there is a need for shedding light on the clinical and surgical therapies benefitting from nanobiomedicine. From this perspective, this review attempts to recognize requirements upon which new hair therapies are grounded; to underline shortcomings and opportunities associated with recent advanced strategies for hair regeneration; and most critically to look over hair regeneration from nanomaterials and pluripotent stem cell standpoint. It is noteworthy that nanotechnology is able to illuminate a novel path for reprogramming cells and controlled differentiation to achieve the desired performance. Undoubtedly, this strategy needs further advancement and a lot of critical questions have yet to be answered. Herein, we introduce the salient features, the hurdles that must be overcome, the hopes, and practical constraints to engineer stem cell niches for hair follicle regeneration.
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Affiliation(s)
| | - Mehrak Zare
- Skin and Stem Cell Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Payam Zarrintaj
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Effat Alizadeh
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ehsan Taghiabadi
- Skin and Stem Cell Research Center, Tehran University of Medical Science, Tehran, Iran; Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | | | | | - Mohammad Reza Saeb
- Department of Resin and Additives, Institute for Color Science and Technology, Tehran, Iran
| | - Masoud Mozafari
- Bioengineering Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), Tehran, Iran; Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.
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13
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Cetinel S, Semenchenko V, Cho JY, Sharaf MG, Damji KF, Unsworth LD, Montemagno C. UV-B induced fibrillization of crystallin protein mixtures. PLoS One 2017; 12:e0177991. [PMID: 28542382 PMCID: PMC5444657 DOI: 10.1371/journal.pone.0177991] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 05/05/2017] [Indexed: 12/28/2022] Open
Abstract
Environmental factors, mainly oxidative stress and exposure to sunlight, induce the oxidation, cross-linking, cleavage, and deamination of crystallin proteins, resulting in their aggregation and, ultimately, cataract formation. Various denaturants have been used to initiate the aggregation of crystallin proteins in vitro. All of these regimens, however, are obviously far from replicating conditions that exist in vivo that lead to cataract formation. In fact, it is our supposition that only UV-B radiation may mimic the observed in vivo cause of crystallin alteration leading to cataract formation. This means of inducing cataract formation may provide the most appropriate in vitro platform for in-depth study of the fundamental cataractous fibril properties and allow for testing of possible treatment strategies. Herein, we showed that cataractous fibrils can be formed using UV-B radiation from α:β:γ crystallin protein mixtures. Characterization of the properties of formed aggregates confirmed the development of amyloid-like fibrils, which are in cross-β-pattern and possibly in anti-parallel β-sheet arrangement. Furthermore, we were also able to confirm that the presence of the molecular chaperone, α-crystallin, was able to inhibit fibril formation, as observed for ‘naturally’ occurring fibrils. Finally, the time-dependent fibrillation profile was found to be similar to the gradual formation of age-related nuclear cataracts. This data provided evidence for the initiation of fibril formation from physiologically relevant crystallin mixtures using UV-B radiation, and that the formed fibrils had several traits similar to that expected from cataracts developing in vivo.
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Affiliation(s)
- Sibel Cetinel
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
- Ingenuity Lab., University of Alberta, Edmonton, AB, Canada
| | - Valentyna Semenchenko
- National Institute of Nanotechnology (NINT), 11421, Saskatchewan Drive NW, Edmonton, AB, Canada
| | - Jae-Young Cho
- National Institute of Nanotechnology (NINT), 11421, Saskatchewan Drive NW, Edmonton, AB, Canada
| | - Mehdi Ghaffari Sharaf
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
- Ingenuity Lab., University of Alberta, Edmonton, AB, Canada
| | - Karim F. Damji
- Department of Ophthalmology and Visual Sciences, University of Alberta, Edmonton, AB, Canada
| | - Larry D. Unsworth
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
- National Institute of Nanotechnology (NINT), 11421, Saskatchewan Drive NW, Edmonton, AB, Canada
- * E-mail: (CM); (LDU)
| | - Carlo Montemagno
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
- Ingenuity Lab., University of Alberta, Edmonton, AB, Canada
- * E-mail: (CM); (LDU)
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14
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Lv D, Zhou L, Zheng X, Hu Y. Sustained release of collagen VI potentiates sciatic nerve regeneration by modulating macrophage phenotype. Eur J Neurosci 2017; 45:1258-1267. [PMID: 28263445 DOI: 10.1111/ejn.13558] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 01/18/2017] [Accepted: 02/07/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Dan Lv
- The graduate School; Tianjin Medical University; Tianjin China
- Department of Orthopaedics; Pingjin Hospital; Logistics University of the Chinese People's Armed Police Forces; Tianjin China
| | - Lijuan Zhou
- Key Laboratory of Oral Diseases Research of Anhui Province (Anhui); Stomatologic Hospital & College; Anhui Medical University; Hefei China
| | - Xianyu Zheng
- Key Laboratory of Oral Diseases Research of Anhui Province (Anhui); Stomatologic Hospital & College; Anhui Medical University; Hefei China
| | - Yongcheng Hu
- Department of Orthopaedic Oncology; Tianjin Hospital; Tianjin 300210 China
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15
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Yu Z, Cai Z, Chen Q, Liu M, Ye L, Ren J, Liao W, Liu S. Engineering β-sheet peptide assemblies for biomedical applications. Biomater Sci 2017; 4:365-74. [PMID: 26700207 DOI: 10.1039/c5bm00472a] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogels have been widely studied in various biomedical applications, such as tissue engineering, cell culture, immunotherapy and vaccines, and drug delivery. Peptide-based nanofibers represent a promising new strategy for current drug delivery approaches and cell carriers for tissue engineering. This review focuses on the recent advances in the use of self-assembling engineered β-sheet peptide assemblies for biomedical applications. The applications of peptide nanofibers in biomedical fields, such as drug delivery, tissue engineering, immunotherapy, and vaccines, are highlighted. The current challenges and future perspectives for self-assembling peptide nanofibers in biomedical applications are discussed.
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Affiliation(s)
- Zhiqiang Yu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Zheng Cai
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Qiling Chen
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Menghua Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Ling Ye
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
| | - Jiaoyan Ren
- Department of Food Science and Technology, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, China.
| | - Wenzhen Liao
- Department of Food Science and Technology, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, China.
| | - Shuwen Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou 510515, China.
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16
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Wang X, Wang J, Guo L, Wang X, Chen H, Wang X, Liu J, Tredget EE, Wu Y. Self-assembling peptide hydrogel scaffolds support stem cell-based hair follicle regeneration. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:2115-2125. [PMID: 27288668 DOI: 10.1016/j.nano.2016.05.021] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/11/2016] [Accepted: 05/24/2016] [Indexed: 12/17/2022]
Abstract
Recent studies show that designer peptide nanofibers can mimic properties of extracellular matrix molecules, promising great potential as scaffold materials for tissue engineering. However, their ability in supporting organogenesis has not been studied. Here we examined the effect of self-assembling peptide hydrogels in supporting skin derived precursors (SKPs) in hair follicle neogenesis. We found that hydrogels formed by RADA16, PRG which contains RGD, and particularly the combination of RADA16 and PRG (RADA-PRG) enhanced SKP proliferation. Notably, the RADA-PRG hydrogel, which exhibited advantages of RADA16 in adequate nanofiber formation and PRG in providing the integrin binding sequence, exhibited superior effects in enhancing SKP survival, expression of hair induction signature genes such as Akp2 and Bmp6, and more importantly de novo hair genesis in mice. Thus our results suggest that RADA-PRG may serve as a novel scaffold material for stem cell transplantation and tissue engineering.
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Affiliation(s)
- Xiaoxiao Wang
- School of Life Sciences, Tsinghua University, China; The Shenzhen Key Laboratory of Health Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, China
| | - Jinmei Wang
- The Shenzhen Key Laboratory of Health Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, China
| | - Ling Guo
- The Shenzhen Key Laboratory of Health Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, China
| | - Xusheng Wang
- School of Life Sciences, Tsinghua University, China; The Shenzhen Key Laboratory of Health Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, China
| | - Haiyan Chen
- School of Life Sciences, Tsinghua University, China; The Shenzhen Key Laboratory of Health Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, China; Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University, China
| | - Xiumei Wang
- School of Materials Science and Engineering, Tsinghua University, China
| | - Jianjun Liu
- Medical Key Laboratory of Health Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Edward E Tredget
- Wound Healing Research Group, Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Yaojiong Wu
- The Shenzhen Key Laboratory of Health Sciences and Technology, Graduate School at Shenzhen, Tsinghua University, China; Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University, China.
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17
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Hsu BB, Conway W, Tschabrunn CM, Mehta M, Perez-Cuevas MB, Zhang S, Hammond PT. Clotting Mimicry from Robust Hemostatic Bandages Based on Self-Assembling Peptides. ACS NANO 2015; 9:9394-406. [PMID: 26284753 PMCID: PMC4580967 DOI: 10.1021/acsnano.5b02374] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 08/18/2015] [Indexed: 05/18/2023]
Abstract
Uncontrolled bleeding from traumatic wounds is a major factor in deaths resulting from military conflict, accidents, disasters and crime. Self-assembling peptide nanofibers have shown superior hemostatic activity, and herein, we elucidate their mechanism by visualizing the formation of nanofiber-based clots that aggregate blood components with a similar morphology to fibrin-based clots. Furthermore, to enhance its direct application to a wound, we developed layer-by-layer assembled thin film coatings onto common materials used for wound dressings-gauze and gelatin sponges. We find these nanofibers elute upon hydration under physiological conditions and generate nanofiber-based clots with blood. After exposure to a range of harsh temperature conditions (-80 to 60 °C) for a week and even 5 months at 60 °C, these hemostatic bandages remain capable of releasing active nanofibers. In addition, the application of these nanofiber-based films from gauze bandages was found to accelerate hemostasis in porcine skin wounds as compared to plain gauze. The thermal robustness, in combination with the self-assembling peptide's potent hemostatic activity, biocompatibility, biodegradability, and low cost of production, makes this a promising approach for a cheap yet effective hemostatic bandage.
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Affiliation(s)
- Bryan B. Hsu
- Departments of Chemistry, Chemical Engineering, and Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Institute for Soldier Nanotechnologies, Cambridge, Massachusetts 02139, United States
| | - William Conway
- Departments of Chemistry, Chemical Engineering, and Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Cory M. Tschabrunn
- Harvard-Thorndike Electrophysiology Institute, Beth Israel Deaconess Medical Center Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Manav Mehta
- 3-D Matrix Medical Technology, Waltham, Massachusetts 02451, United States
| | - Monica B. Perez-Cuevas
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Shuguang Zhang
- Center for Bits & Atoms, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Paula T. Hammond
- Departments of Chemistry, Chemical Engineering, and Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Institute for Soldier Nanotechnologies, Cambridge, Massachusetts 02139, United States
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18
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Xu FF, Wang YC, Sun S, Ho ASW, Lee D, Kiang KMY, Zhang XQ, Lui WM, Liu BY, Wu WT, Leung GKK. Comparison between self-assembling peptide nanofiber scaffold (SAPNS) and fibrin sealant in neurosurgical hemostasis. Clin Transl Sci 2015; 8:490-4. [PMID: 26077376 DOI: 10.1111/cts.12299] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
RADA16-I is a synthetic type I self-assembling peptide nanofiber scaffold (SAPNS) which may serve as a novel biocompatible hemostatic agent. Its application in neurosurgical hemostasis, however, has not been explored. Although RADA16-I is nontoxic and nonimmunogenic, its intrinsic acidity may potentially provoke inflammation in the surgically injured brain. We conducted an animal study to compare RADA16-I with fibrin sealant, a commonly used agent, with the hypothesis that the former would be a comparable alternative. Using a standardized surgical brain injury model, 30 Sprague-Dawley rats were randomized into three treatment groups: RADA16-I, fibrin sealant or gelatin sponge (control). Animals were sacrificed on day 3 and 42. Astrocytic and microglial infiltrations within the cerebral parenchyma adjacent to the operative site were significantly lower in the RADA16-I and fibrin sealant groups than control. RADA16-I did not cause more cellular inflammatory response despite its acidity when compared with fibrin sealant. Immunohistochemical studies showed infiltration by astrocytes and microglia into the fibrin sealant and RADA16-I grafts, suggesting their potential uses as tissue scaffolds. RADA16-I is a promising candidate for further translational and clinical studies that focus on its applications as a safe and effective hemostat, proregenerative nanofiber scaffold as well as drug and cell carrier.
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Affiliation(s)
- Fei-Fan Xu
- Department of Neurosurgery, Peking University First Hospital, Beijing, China.,Division of Neurosurgery, Department of Surgery, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Yue-Chun Wang
- Division of Neurosurgery, Department of Surgery, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China.,Department of Physiology, Medical College of Jinan University, Guangzhou, China
| | - Stella Sun
- Division of Neurosurgery, Department of Surgery, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Amy S W Ho
- Division of Neurosurgery, Department of Surgery, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Derek Lee
- Division of Neurosurgery, Department of Surgery, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Karrie M Y Kiang
- Division of Neurosurgery, Department of Surgery, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Xiao-Qin Zhang
- Division of Neurosurgery, Department of Surgery, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Wai-Man Lui
- Division of Neurosurgery, Department of Surgery, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Bai-Yun Liu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Neurotrauma Laboratory, Beijing Neurosurgical Institute, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Wu-Tian Wu
- Department of Anatomy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Gilberto K K Leung
- Division of Neurosurgery, Department of Surgery, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
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19
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Cormier AR, Pang X, Zimmerman MI, Zhou HX, Paravastu AK. Molecular structure of RADA16-I designer self-assembling peptide nanofibers. ACS NANO 2013; 7:7562-72. [PMID: 23977885 PMCID: PMC3946435 DOI: 10.1021/nn401562f] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The designer self-assembling peptide RADA16-I forms nanofiber matrices which have shown great promise for regenerative medicine and three-dimensional cell culture. The RADA16-I amino acid sequence has a β-strand-promoting alternating hydrophobic/charged motif, but arrangement of β-strands into the nanofiber structure has not been previously determined. Here we present a structural model of RADA16-I nanofibers, based on solid-state NMR measurements on samples with different schemes for (13)C isotopic labeling. NMR peak positions and line widths indicate an ordered structure composed of β-strands. The NMR data show that the nanofibers are composed of two stacked β-sheets stabilized by a hydrophobic core formed by alanine side chains, consistent with previous proposals. However, the previously proposed antiparallel β-sheet structure is ruled out by measured (13)C-(13)C dipolar couplings. Instead, neighboring β-strands within β-sheets are parallel, with a registry shift that allows cross-strand staggering of oppositely charged arginine and aspartate side chains. The resulting structural model is compared to nanofiber dimensions observed via images taken by transmission electron microscopy and atomic force microscopy. Multiple NMR peaks for each alanine side chain were observed and could be attributed to multiple configurations of side chain packing within a single scheme for intermolecular packing.
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Affiliation(s)
- Ashley R. Cormier
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, 2525 Pottsdamer Street, Tallahassee, FL 32310-6046
- National High Magnetic Field Laboratory, 1800 E. Paul Dirac Drive, Tallahassee, FL 32310
| | - Xiaodong Pang
- Department of Physics and Institute of Molecular Biophysics, Florida State University, Tallahassee, FL 32306
| | - Maxwell I. Zimmerman
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, 2525 Pottsdamer Street, Tallahassee, FL 32310-6046
- National High Magnetic Field Laboratory, 1800 E. Paul Dirac Drive, Tallahassee, FL 32310
| | - Huan-Xiang Zhou
- Department of Physics and Institute of Molecular Biophysics, Florida State University, Tallahassee, FL 32306
| | - Anant K. Paravastu
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, 2525 Pottsdamer Street, Tallahassee, FL 32310-6046
- National High Magnetic Field Laboratory, 1800 E. Paul Dirac Drive, Tallahassee, FL 32310
- Address correspondence to
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20
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Cormier AR, Lopez-Majada JM, Alamo RG, Paravastu AK. Distinct solid and solution state self-assembly pathways of RADA16-I designer peptide. J Pept Sci 2013; 19:477-84. [DOI: 10.1002/psc.2524] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 04/22/2013] [Accepted: 05/03/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Ashley R. Cormier
- FAMU-FSU College of Engineering; Department of Chemical and Biomedical Engineering; 2525 Pottsdamer Street Tallahassee FL 32310-6046 USA
- National High Magnetic Field Laboratory; 1800 E. Paul Dirac Drive Tallahassee FL 32310 USA
| | - Juan M. Lopez-Majada
- FAMU-FSU College of Engineering; Department of Chemical and Biomedical Engineering; 2525 Pottsdamer Street Tallahassee FL 32310-6046 USA
- National High Magnetic Field Laboratory; 1800 E. Paul Dirac Drive Tallahassee FL 32310 USA
| | - Rufina G. Alamo
- FAMU-FSU College of Engineering; Department of Chemical and Biomedical Engineering; 2525 Pottsdamer Street Tallahassee FL 32310-6046 USA
- National High Magnetic Field Laboratory; 1800 E. Paul Dirac Drive Tallahassee FL 32310 USA
| | - Anant K. Paravastu
- FAMU-FSU College of Engineering; Department of Chemical and Biomedical Engineering; 2525 Pottsdamer Street Tallahassee FL 32310-6046 USA
- National High Magnetic Field Laboratory; 1800 E. Paul Dirac Drive Tallahassee FL 32310 USA
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