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Pareek P, Chaudhary S, Singh S, Thodikayil AT, Kalyanasundaram D, Kumar S. Bridging biomimetic and bioenergetics scaffold: Cellulose-graphene oxide-arginine functionalized aerogel for stem cell-mediated cartilage repair. Int J Biol Macromol 2024; 278:134608. [PMID: 39134192 DOI: 10.1016/j.ijbiomac.2024.134608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 07/12/2024] [Accepted: 08/07/2024] [Indexed: 08/18/2024]
Abstract
The avascular nature of cartilage tissue limits inherent regenerative capacity to counter any damage and this has become a substantial burden to the health of individuals. As a result, there is a high demand to repair and regenerate cartilage. Existing tissue engineering approaches for cartilage regeneration typically produce either microporous or nano-fibrous scaffolds lacking the desired biological outcome due to lack of biomimetic dual architecture of microporous construct with nano-fibrous interconnected structures like the native cartilage. Most of these scaffolds also fail to suppress ROS generation and provide sustained bioenergetics to cells, resulting in the loss of metabolic activity under avascular microenvironment of cartilage. A dual architecture microporous construct with nano-fibrous interconnected network of cellulose aerogel reinforced with arginine-coated graphene oxide (CNF-GO-Arg aerogel) was developed for cartilage regeneration. The designed dual-architectured CNF-GO-Arg aerogel using dual ice templating assembly demonstrates 80 % strain recovery ability under compression. The release of Arginine from CNF-GO-Arg aerogel supported 41 % reduction in intracellular ROS activity and promoted chondrogenic differentiation of hMSCs by shifting mitochondrial bioenergetics towards oxidative phosphorylation indicated by JC-1 dye staining. Overall developed CNF-GO-Arg aerogel provided multifunctionality via biomimetic morphology, cellular bioenergetics, and suppressed ROS generation to address the need for regeneration of cartilage.
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Affiliation(s)
- Puneet Pareek
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Shivani Chaudhary
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Sonu Singh
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | | | - Dinesh Kalyanasundaram
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India; Department of Biomedical Engineering, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Sachin Kumar
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India; Department of Biomedical Engineering, All India Institute of Medical Sciences, New Delhi 110029, India.
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2
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Shirk BD, Heichel DL, Eccles LE, Rodgers LI, Lateef AH, Burke KA, Stoppel WL. Modifying Naturally Occurring, Nonmammalian-Sourced Biopolymers for Biomedical Applications. ACS Biomater Sci Eng 2024. [PMID: 39259773 DOI: 10.1021/acsbiomaterials.4c00689] [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: 09/13/2024]
Abstract
Natural biopolymers have a rich history, with many uses across the fields of healthcare and medicine, including formulations for wound dressings, surgical implants, tissue culture substrates, and drug delivery vehicles. Yet, synthetic-based materials have been more successful in translation due to precise control and regulation achievable during manufacturing. However, there is a renewed interest in natural biopolymers, which offer a diverse landscape of architecture, sustainable sourcing, functional groups, and properties that synthetic counterparts cannot fully replicate as processing and sourcing of these materials has improved. Proteins and polysaccharides derived from various sources (crustaceans, plants, insects, etc.) are highlighted in this review. We discuss the common types of polysaccharide and protein biopolymers used in healthcare and medicine, highlighting methods and strategies to alter structures and intra- and interchain interactions to engineer specific functions, products, or materials. We focus on biopolymers obtained from natural, nonmammalian sources, including silk fibroins, alginates, chitosans, chitins, mucins, keratins, and resilins, while discussing strategies to improve upon their innate properties and sourcing standardization to expand their clinical uses and relevance. Emphasis will be placed on methods that preserve the structural integrity and native biological functions of the biopolymers and their makers. We will conclude by discussing the untapped potential of new technologies to manipulate native biopolymers while controlling their secondary and tertiary structures, offering a perspective on advancing biopolymer utility in novel applications within biomedical engineering, advanced manufacturing, and tissue engineering.
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Affiliation(s)
- Bryce D Shirk
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Danielle L Heichel
- Department of Chemical Engineering, University of Connecticut, Storrs, Connecticut 06269-3222, United States
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3136, United States
| | - Lauren E Eccles
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Liam I Rodgers
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Ali H Lateef
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Kelly A Burke
- Department of Chemical Engineering, University of Connecticut, Storrs, Connecticut 06269-3222, United States
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3136, United States
| | - Whitney L Stoppel
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
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3
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Hasnain M, Kanwal T, Rehman K, Rehman SRU, Aslam S, Roome T, Perveen S, Zaidi MB, Saifullah S, Yasmeen S, Hasan A, Shah MR. Microarray needles comprised of arginine-modified chitosan/PVA hydrogel for enhanced antibacterial and wound healing potential of curcumin. Int J Biol Macromol 2023; 253:126697. [PMID: 37673138 DOI: 10.1016/j.ijbiomac.2023.126697] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 09/01/2023] [Accepted: 09/02/2023] [Indexed: 09/08/2023]
Abstract
Wound healing is a multifaceted and complex process that includes inflammation, hemostasis, remodeling, and granulation. Failures in any link may cause the healing process to be delayed. As a result, wound healing has always been a main research focus across the entire medical field, posing significant challenges and financial burdens. Hence, the current investigation focused on the design and development of arginine-modified chitosan/PVA hydrogel-based microneedles (MNs) as a curcumin (CUR) delivery system for improved wound healing and antibacterial activity. The substrate possesses exceptional swelling capabilities that allow tissue fluid from the wound to be absorbed, speeding up wound closure. The antibacterial activity of MNs was investigated against S. aureus and E. coli. The results revealed that the developed CUR-loaded MNs had increased antioxidant activity and sustained drug release behavior. Furthermore, after being loaded in the developed MNs, it revealed improved antibacterial activity of CUR. Wound healing potential was assessed by histopathological analysis and wound closure%. The observed results suggest that the CUR-loaded MNs greatly improved wound healing potential via tissue regeneration and collagen deposition, demonstrating the potential of developed MNs patches to be used as an effective carrier for wound healing in healthcare settings.
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Affiliation(s)
- Muhammad Hasnain
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Tasmina Kanwal
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Khadija Rehman
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
| | - Syed Raza Ur Rehman
- Mechanical and Industrial Engineering, Qatar University, 2713, Doha, Qatar; Biomedical Research Center, Qatar University, 2713, Doha, Qatar.
| | - Shazmeen Aslam
- Dow Institute for Advanced Biological and Animal Research, Dow International Medical College, Dow University of Health Sciences, Karachi 74200, Pakistan.
| | - Talat Roome
- Dow Institute for Advanced Biological and Animal Research, Dow International Medical College, Dow University of Health Sciences, Karachi 74200, Pakistan; Molecular Pathology Section, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Dow University of Health Sciences, Karachi 74200, Pakistan.
| | - Samina Perveen
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, PR China
| | - Midhat Batool Zaidi
- Dow Institute for Advanced Biological and Animal Research, Dow International Medical College, Dow University of Health Sciences, Karachi 74200, Pakistan.
| | - Salim Saifullah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan; Pakistan Forest Institute Peshawar, Pakistan
| | - Saira Yasmeen
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Anwarul Hasan
- Mechanical and Industrial Engineering, Qatar University, 2713, Doha, Qatar; Biomedical Research Center, Qatar University, 2713, Doha, Qatar
| | - Muhammad Raza Shah
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
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Milano F, Chevrier A, De Crescenzo G, Lavertu M. Injectable Lyophilized Chitosan-Thrombin-Platelet-Rich Plasma (CS-FIIa-PRP) Implant to Promote Tissue Regeneration: In Vitro and Ex Vivo Solidification Properties. Polymers (Basel) 2023; 15:2919. [PMID: 37447564 DOI: 10.3390/polym15132919] [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: 06/06/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Freeze-dried chitosan formulations solubilized in platelet-rich plasma (PRP) are currently evaluated as injectable implants with the potential for augmenting the standard of care for tissue repair in different orthopedic conditions. The present study aimed to shorten the solidification time of such implants, leading to an easier application and a facilitated solidification in a wet environment, which were direct demands from orthopedic surgeons. The addition of thrombin to the formulation before lyophilization was explored. The challenge was to find a formulation that coagulated fast enough to be applied in a wet environment but not too fast, which would make handling/injection difficult. Four thrombin concentrations were analyzed (0.0, 0.25, 0.5, and 1.0 NIH/mL) in vitro (using thromboelastography, rheology, indentation, syringe injectability, and thrombin activity tests) as well as ex vivo (by assessing the implant's adherence to tendon tissue in a wet environment). The biomaterial containing 0.5 NIH/mL of thrombin significantly increased the coagulation speed while being easy to handle up to 6 min after solubilization. Furthermore, the adherence of the biomaterial to tendon tissues was impacted by the biomaterial-tendon contact duration and increased faster when thrombin was present. These results suggest that our biomaterial has great potential for use in regenerative medicine applications.
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Affiliation(s)
- Fiona Milano
- Biomedical Engineering Institute, Polytechnique Montreal, Montréal, QC H3T 1J4, Canada
| | - Anik Chevrier
- Chemical Engineering Department, Polytechnique Montreal, Montréal, QC H3T 1J4, Canada
| | - Gregory De Crescenzo
- Biomedical Engineering Institute, Polytechnique Montreal, Montréal, QC H3T 1J4, Canada
- Chemical Engineering Department, Polytechnique Montreal, Montréal, QC H3T 1J4, Canada
| | - Marc Lavertu
- Biomedical Engineering Institute, Polytechnique Montreal, Montréal, QC H3T 1J4, Canada
- Chemical Engineering Department, Polytechnique Montreal, Montréal, QC H3T 1J4, Canada
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Yao M, Zhang G, Shao D, Ding S, Li L, Li H, Zhou C, Luo B, Lu L. Preparation of chitin/MXene/poly(L-arginine) composite aerogel spheres for specific adsorption of bilirubin. Int J Biol Macromol 2023:125140. [PMID: 37270125 DOI: 10.1016/j.ijbiomac.2023.125140] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 05/21/2023] [Accepted: 05/26/2023] [Indexed: 06/05/2023]
Abstract
Currently, hemoperfusion is clinically the most rapid and effective treatment for removing toxins from the blood. The core of hemoperfusion is the sorbent inside the hemoperfusion device. Due to the complex composition of the blood, adsorbents tend to adsorb substances such as proteins in the blood (non-specific adsorption) while adsorbing toxins. Hyperbilirubinemia is caused by excessive levels of bilirubin in the human blood, causing irreversible damage to the patient's brain and nervous system, and even leading to death. High adsorption and high biocompatibility adsorbents with specific bilirubin adsorption are urgently needed to treat hyperbilirubinemia. Herein, poly(L-arginine) (PLA) which can specifically adsorb bilirubin, was introduced into chitin/MXene (Ch/MX) composite aerogel spheres. Ch/MX/PLA prepared by supercritical CO2 technology had higher mechanical properties than Ch/MX and can withstand 50,000 times its own weight. The in vitro simulated hemoperfusion test showed that the adsorption capacity of Ch/MX/PLA was as high as 596.31 mg/g, which was 15.38 % higher than that of Ch/MX. Binary and ternary competitive adsorption tests showed that Ch/MX/PLA also had good adsorption capacity in the presence of a variety of interfering molecules. In addition, hemolysis rate testing and CCK-8 testing confirmed that Ch/MX/PLA had better biocompatibility and hemocompatibility. Ch/MX/PLA can meet the required properties of clinical hemoperfusion sorbents and has the ability to produce mass production. It has good application potential in the clinical treatment of hyperbilirubinemia.
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Affiliation(s)
- Mengru Yao
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
| | - Guiyin Zhang
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
| | - Danchun Shao
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
| | - Shan Ding
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China
| | - Lihua Li
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China
| | - Hong Li
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China
| | - Changren Zhou
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China
| | - Binghong Luo
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China
| | - Lu Lu
- Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, China.
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6
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Achieving high flame retardancy, crystallization and biodegradability PLA based on 1 wt% addition of novel fully bio-based flame retardant. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Zhao D, Li D, Cheng X, Zou Z, Chen X, He C. Mucoadhesive, Antibacterial, and Reductive Nanogels as a Mucolytic Agent for Efficient Nebulized Therapy to Combat Allergic Asthma. ACS NANO 2022; 16:11161-11173. [PMID: 35762830 DOI: 10.1021/acsnano.2c03993] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Asthma is an intractable disease involving the infiltration of inflammatory cells and mucus plugging. Despite small molecular mucolytics having the ability to break the disulfide bonds of mucins, offering a potential way to overcome the airflow obstruction and airway infection, these mucolytics have limited therapeutic effects in vivo. Therefore, in this work, arginine-grafted chitosan (CS-Arg) is ionically cross-linked with tris(2-carboxyethyl)phosphine (TCEP) to obtain nanogels as a mucolytic agent. The positively charged nanogels effectively inhibit the formation of large aggregates of mucin in vitro, probably thanks to the formation of an ionic interaction between CS-Arg and mucin, as well as the breakage of disulfide bonds in mucin by the reductive TCEP. Moreover, the nanogels show good cytocompatibility at concentrations up to 5 mg mL-1, exhibiting effective inhibitory effects against the proliferation of both Staphylococcus aureus and Escherichia coli at 5 mg mL-1. After the administration of the nanogels by nebulization into a Balb/c mouse model with allergic asthma, they can efficiently reduce the mucus obstruction in bronchioles and alveoli and relieve airway inflammation. Therefore, these CS-Arg/TCEP nanogels potentially represent a promising mucolytic agent for the efficient treatment of allergic asthma and other muco-obstructive diseases.
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Affiliation(s)
- Dan Zhao
- CAS Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Dong Li
- CAS Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Xueliang Cheng
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin 130014, P. R. China
| | - Zheng Zou
- CAS Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Xuesi Chen
- CAS Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chaoliang He
- CAS Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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8
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Norpi ASM, Nordin ML, Ahmad N, Katas H, Fuaad AAHA, Sukri A, Marasini N, Azmi F. New modular platform based on multi-adjuvanted amphiphilic chitosan nanoparticles for efficient lipopeptide vaccine delivery against group A streptococcus. Asian J Pharm Sci 2022; 17:435-446. [PMID: 35782331 PMCID: PMC9237632 DOI: 10.1016/j.ajps.2022.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 04/01/2022] [Accepted: 04/06/2022] [Indexed: 11/02/2022] Open
Abstract
An effective vaccine against group A streptococcus (GAS) is highly desirable for definitive control of GAS infections. In the present study, two variants of amphiphilic chitosan nanoparticles-based GAS vaccines were developed. The vaccines were primarily composed of encapsulated KLH protein (a source of T helper cell epitopes) and lipidated M-protein derived B cell peptide epitope (lipoJ14) within the amphiphilic structure of nanoparticles. The only difference between them was one of the nanoparticles vaccines received additional surface coating with poly (I:C). The formulated vaccines exhibited nanosized particles within the range of 220–240 nm. Cellular uptake study showed that nanoparticles vaccine without additional poly (I:C) coating has greater uptake by dendritic cells and macrophages compared to nanoparticles vaccine that was functionalized with poly (I:C). Both vaccines were found to be safe in mice and showed negligible cytotoxicity against HEK293 cells. Upon immunization in mice, both nanoparticle vaccines produced high antigen-specific antibodies titres that were regulated by a balanced Th1 and Th2 response compared to physical mixture. These antibodies elicited high opsonic activity against the tested GAS strains. Overall, our data demonstrated that amphiphilic chitosan nanoparticles platform induced a potent immune response even without additional inclusion of poly (I:C).
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9
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Arginine-conjugated chitosan nanoparticles for topical arginine release in wounds. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Chai Z, Li C, Zhu Y, Song X, Chen M, Yang Y, Chen D, Liang X, Wu J. Arginine-modified magnetic chitosan: Preparation, characterization and adsorption of gallic acid in sugar solution. Int J Biol Macromol 2020; 165:506-516. [DOI: 10.1016/j.ijbiomac.2020.09.141] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/03/2020] [Accepted: 09/19/2020] [Indexed: 12/20/2022]
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11
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Zhang Y, Wang L, Xu M, Zhao T, Kuang L, Hua D. Smart Oral Administration of Polydopamine-Coated Nanodrugs for Efficient Attenuation of Radiation-Induced Gastrointestinal Syndrome. Adv Healthc Mater 2020; 9:e1901778. [PMID: 32484315 DOI: 10.1002/adhm.201901778] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 04/12/2020] [Indexed: 01/06/2023]
Abstract
High-dose ionizing radiation can lead to death from the unrecoverable damage of the gastrointestinal tract, especially the small intestine. Until now, the lack of predilection for the small intestine and rapid clearance by digestive fluids limit the effects of conventional radioprotective formulations. Herein, an innovative radioprotective strategy is developed for attenuating gastrointestinal syndrome by smart oral administration nanodrugs. The nanodrug is first engineered by encapsulating thalidomide into chitosan-based nanoparticles, and then coated with polydopamine. The behaviors of gastric acid-resistance, and pH-switchable controlled release in the small intestine enhance the oral bioavailability of the pyroptosis inhibitor thalidomide. In a mouse model, nanodrugs demonstrate prolonged small intestinal residence time and accessibility to the crypt region deep in the mucus. Furthermore, the nanodrugs ameliorate survival rates of C57BL/6J mice irradiated by 14 Gy of subtotal body irradiation and also maintain their epithelial integrity. This work may provide a promising new approach for efficiently attenuating lethal radiation-induced gastrointestinal syndrome and add insights into developing nanodrug-based therapies with improved efficacy and minimum side effects.
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Affiliation(s)
- Yushuo Zhang
- State Key Laboratory of Radiation Medicine and ProtectionSchool for Radiological and Interdisciplinary Sciences (RAD‐X)Soochow University Suzhou 215123 China
| | - Lu Wang
- State Key Laboratory of Radiation Medicine and ProtectionSchool for Radiological and Interdisciplinary Sciences (RAD‐X)Soochow University Suzhou 215123 China
| | - Meiyun Xu
- State Key Laboratory of Radiation Medicine and ProtectionSchool for Radiological and Interdisciplinary Sciences (RAD‐X)Soochow University Suzhou 215123 China
| | - Tongxin Zhao
- State Key Laboratory of Radiation Medicine and ProtectionSchool for Radiological and Interdisciplinary Sciences (RAD‐X)Soochow University Suzhou 215123 China
| | - Liangju Kuang
- Schepens Eye Research Institute of Massachusetts Eye and EarHarvard Medical School Boston MA 02114 USA
| | - Daoben Hua
- State Key Laboratory of Radiation Medicine and ProtectionSchool for Radiological and Interdisciplinary Sciences (RAD‐X)Soochow University Suzhou 215123 China
- Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education InstitutionsSoochow University Suzhou 215123 China
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12
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Zink M, Hotzel K, Schubert US, Heinze T, Fischer D. Amino Acid–Substituted Dextran‐Based Non‐Viral Vectors for Gene Delivery. Macromol Biosci 2019; 19:e1900085. [DOI: 10.1002/mabi.201900085] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/08/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Matthias Zink
- Institute of PharmacyFriedrich Schiller University Jena Lessingstrasse 8 D‐07743 Jena Germany
| | - Konrad Hotzel
- Friedrich Schiller University Jena Humboldtstraße 10 D‐07743 Jena Germany
- Friedrich Schiller University Jena Humboldtstraße 10 D‐07743 Jena Germany
| | - Ulrich S. Schubert
- Friedrich Schiller University Jena Humboldtstraße 10 D‐07743 Jena Germany
- Friedrich Schiller University Jena Philosophenweg 7 D‐07743 Jena Germany
| | - Thomas Heinze
- Friedrich Schiller University Jena Humboldtstraße 10 D‐07743 Jena Germany
- Friedrich Schiller University Jena Humboldtstraße 10 D‐07743 Jena Germany
- Friedrich Schiller University Jena Philosophenweg 7 D‐07743 Jena Germany
| | - Dagmar Fischer
- Institute of PharmacyFriedrich Schiller University Jena Lessingstrasse 8 D‐07743 Jena Germany
- Friedrich Schiller University Jena Philosophenweg 7 D‐07743 Jena Germany
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13
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Shi R, Huang Y, Zhang J, Wu C, Gong M, Tian W, Zhang L. Effective delivery of mitomycin‐C and meloxicam by double‐layer electrospun membranes for the prevention of epidural adhesions. J Biomed Mater Res B Appl Biomater 2019; 108:353-366. [PMID: 31017374 DOI: 10.1002/jbm.b.34394] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 03/07/2019] [Accepted: 04/04/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Rui Shi
- Beijing Laboratory of Biomedical MaterialsInstitute of Traumatology and Orthopaedics Beijing Jishuitan Hospital Beijing China
| | - Yuelong Huang
- Department of Spine SurgeryPeking University Fourth School of Clinical Medicine Beijing China
| | - Jingshuang Zhang
- Beijing Laboratory of Biomedical MaterialsInstitute of Traumatology and Orthopaedics Beijing Jishuitan Hospital Beijing China
| | - Chengai Wu
- Beijing Laboratory of Biomedical MaterialsInstitute of Traumatology and Orthopaedics Beijing Jishuitan Hospital Beijing China
| | - Min Gong
- Beijing Laboratory of Biomedical Materials, State Key Laboratory of Organic‐Inorganic CompositesBeijing University of Chemical Technology Beijing China
| | - Wei Tian
- Department of Spine SurgeryPeking University Fourth School of Clinical Medicine Beijing China
| | - Liqun Zhang
- Beijing Laboratory of Biomedical Materials, State Key Laboratory of Organic‐Inorganic CompositesBeijing University of Chemical Technology Beijing China
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14
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An optical probe for detecting chondrocyte apoptosis in response to mechanical injury. Sci Rep 2017; 7:10906. [PMID: 28883614 PMCID: PMC5589871 DOI: 10.1038/s41598-017-10653-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 08/10/2017] [Indexed: 11/08/2022] Open
Abstract
Cartilage injury induced by acute excessive contact stress is common and mostly affects young adult. Although early detection of cartilage injury may prevent serious and lifelong arthritic complications, early detection and treatment is not possible due to the lack of a reliable detection method. Since chondrocyte injury and subsequent cell death are the early signs of cartilage injury, it is likely that cartilage cell apoptosis can be used to predict the extent of injury. To test this hypothesis, a near infrared probe was fabricated to have high affinity to apoptotic cells. In vitro tests show that this apoptosis probe has low toxicity, high specificity, and high affinity to apoptotic cells. In addition, there is a positive relationship between apoptotic cell numbers and fluorescence intensities. Using a mouse xiphoid injury model, we found significant accumulation of the apoptosis probes at the injured xiphoid cartilage site. There was also a positive correlation between probe accumulation and the number of apoptotic chondrocytes within the injured xiphoid cartilage, which was confirmed by TUNEL assay. The results support that the apoptosis probes may serve as a powerful tool to monitor the extent of mechanical force-induced cartilage injury in vivo.
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Jalvandi J, White M, Gao Y, Truong YB, Padhye R, Kyratzis IL. Polyvinyl alcohol composite nanofibres containing conjugated levofloxacin-chitosan for controlled drug release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:440-446. [DOI: 10.1016/j.msec.2016.12.112] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 12/07/2016] [Accepted: 12/20/2016] [Indexed: 11/30/2022]
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Xu T, Zhang J, Chi H, Cao F. Multifunctional properties of organic-inorganic hybrid nanocomposites based on chitosan derivatives and layered double hydroxides for ocular drug delivery. Acta Biomater 2016; 36:152-63. [PMID: 26940970 DOI: 10.1016/j.actbio.2016.02.041] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 02/07/2016] [Accepted: 02/28/2016] [Indexed: 12/21/2022]
Abstract
UNLABELLED To improve the ocular bioavailability of the model drug of pirenoxine sodium (PRN), organic-inorganic hybrid nanocomposites including layered double hydroxides (LDH) and chitosan derivatives (chitosan-glutathione (CG), chitosan-glutathione-valine (CG-V) and chitosan-glutathione-valine-valine (CG-VV)) were designed and characterized. In vivo precorneal retention study on rabbits showed that mean residence time (MRT) and area under the curve (AUC0-6h) of CG-PRN-LDH nanocomposite eye drop was up to 2.1-fold and 6.3-fold higher than those of commercial product, respectively. In vitro corneal penetration on rabbits demonstrated that the cumulative permeation of CG-VV-PRN-LDH nanocomposite dispersion was increased by 5.2 folds compared to that of commercial product, which may be due to the active transport effect of the nanocomposites by peptide transporter-1 (PepT-1). In addition, the ex vivo fluorescence imaging showed that fluorescent intensity of crystalline lens in rabbits was increased after the administration of PRN-LDH, CG-PRN-LDH, CG-V-PRN-LDH and CG-VV-PRN-LDH (in increasing order) nanocomposite eye drop. Finally, in vivo distribution evaluation in ocular tissues of rabbits revealed that AUC0-8h and MRT in crystalline lens exhibited 14.7-fold and 2.2-fold increase in CG-VV-PRN-LDH nanocomposite eye drop group than those of commercial group, respectively. In summary, the organic-inorganic hybrid nanocomposites with multifunctional properties may be a promising ocular drug delivery system to achieve prolonged precorneal retention, better corneal permeability and enhanced ocular bioavailability. STATEMENT OF SIGNIFICANCE Due to several structural and physiological intraocular barriers, drug delivery to the ocular mid-posterior segments still faces great challenges. In this manuscript, organic-inorganic hybrid nanocomposites based on chitosan derivatives and layered double hydroxides (LDH) were designed and constructed. Multifunctional properties of these hybrid nanocomposites were due to the possible active targeting to the peptide transporter-1 on the corneal epithelial cells, the bioadhesive ability and permeation enhancement of chitosan derivatives, and the electrostatic adsorption of LDH. Prolonged precorneal retention, better corneal permeability and enhanced ocular bioavailability of the model drug pirenoxine sodium were observed. Chitosan derivatives-LDH hybrid nanocomposites may be a promising ophthalmic drug system for the treatment of ocular diseases of mid-posterior segments.
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Affiliation(s)
- Tingting Xu
- School of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Jie Zhang
- School of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Huibo Chi
- School of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Feng Cao
- School of Pharmacy, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China.
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Xu X, Qiu S, Zhang Y, Yin J, Min S. PELA microspheres with encapsulated arginine-chitosan/pBMP-2 nanoparticles induce pBMP-2 controlled-release, transfected osteoblastic progenitor cells, and promoted osteogenic differentiation. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:330-339. [PMID: 26961803 DOI: 10.3109/21691401.2016.1153480] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Repair of the bone injury remains a challenge in clinical practices. Recent progress in tissue engineering and therapeutic gene delivery systems have led to promising new strategies for successful acceleration of bone repair process. The aim of this study was to create a controlled-release system to slowly release the arginine-chitosan/plasmid DNA nanoparticles encoding BMP-2 gene (Arg-CS/pBMP-2 NPs), efficiently transfect osteoblastic progenitor cells, secrete functional BMP-2 protein, and promote osteogenic differentiation. In this study, chitosan was conjugated with arginine to generate arginine-chitosan polymer (Arg-CS) for gene delivery. Mix the Arg-CS with pBMP-2 to condense pBMP-2 into nano-sized particles. In vitro transfection assays demonstrated that the transfection efficiency of Arg-CS/pBMP-2 nanoparticles and the expression level of BMP-2 was obviously exceed control groups. Further, PELA microspheres as the controlled-release carrier for the nanoparticles were used to encapsulate Arg-CS/pBMP-2 NPs. We demonstrated that the Arg-CS/pBMP-2 NPs could slowly release from the PELA microspheres at least for 42 d. During the co-culture with the PELA microspheres, the content of BMP-2 protein secreted by MC3T3-E1 reached the peak at 7 d. After 21d, the secretion of BMP-2 protein still maintain a higher level. The alkaline phosphatase activity, alizarin red staining, and osteogenesis-related gene expression by real-time quantitative PCR analysis all showed the PELA microspheres entrapping with Arg-CS/pBMP-2 NPs can obviously induce the osteogenic differentiation. The results indicated that the Arg-CS is a suitable gene vector which can promote the gene transfection. And the novel PELA microspheres-nanoparticle controlled-release system has potential clinical application in the future after further research.
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Affiliation(s)
- Xiaolong Xu
- a Department of Orthopedics , Zhujiang Hospital, Southern Medical University , Guangzhou , Guangdong Province , China
| | - Sujun Qiu
- a Department of Orthopedics , Zhujiang Hospital, Southern Medical University , Guangzhou , Guangdong Province , China
| | - Yuxian Zhang
- a Department of Orthopedics , Zhujiang Hospital, Southern Medical University , Guangzhou , Guangdong Province , China
| | - Jie Yin
- a Department of Orthopedics , Zhujiang Hospital, Southern Medical University , Guangzhou , Guangdong Province , China
| | - Shaoxiong Min
- a Department of Orthopedics , Zhujiang Hospital, Southern Medical University , Guangzhou , Guangdong Province , China
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Jeong EJ, Choi M, Lee J, Rhim T, Lee KY. The spacer arm length in cell-penetrating peptides influences chitosan/siRNA nanoparticle delivery for pulmonary inflammation treatment. NANOSCALE 2015; 7:20095-20104. [PMID: 26568525 DOI: 10.1039/c5nr06903c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Although chitosan and its derivatives have been frequently utilized as delivery vehicles for small interfering RNA (siRNA), it is challenging to improve the gene silencing efficiency of chitosan-based nanoparticles. In this study, we hypothesized that controlling the spacer arm length between a cell-penetrating peptide (CPP) and a nanoparticle could be critical to enhancing the cellular uptake as well as the gene silencing efficiency of conventional chitosan/siRNA nanoparticles. A peptide consisting of nine arginine units (R9) was used as a CPP, and the spacer arm length was controlled by varying the number of glycine units between the peptide (R9Gn) and the nanoparticle (n = 0, 4, and 10). Various physicochemical characteristics of R9Gn-chitosan/siRNA nanoparticles were investigated in vitro. Increasing the spacing arm length did not significantly affect the complex formation between R9Gn-chitosan and siRNA. However, R9G10-chitosan was much more effective in delivering genes both in vitro and in vivo compared with non-modified chitosan (without the peptide) and R9-chitosan (without the spacer arm). Chitosan derivatives modified with oligoarginine containing a spacer arm can be considered as potential delivery vehicles for various genes.
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Affiliation(s)
- Eun Ju Jeong
- Department of Bioengineering, Hanyang University, Seoul 133-791, Republic of Korea.
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19
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Thomas LV, Nair PD. (Citric acid-co-polycaprolactone triol) polyester: a biodegradable elastomer for soft tissue engineering. BIOMATTER 2014; 1:81-90. [PMID: 23507730 PMCID: PMC3548247 DOI: 10.4161/biom.1.1.17301] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Tissue engineering holds enormous challenges for materials science, wherein the ideal scaffold to be used is expected to be biocompatible, biodegradable and possess mechanical and physical properties that are suitable for target application. In this context, we have prepared degradable polyesters in different ratios by a simple polycondensation technique with citric acid and polycaprolactone triol. Differential scanning calorimetry indicated that the materials were amorphous based the absence of a crystalline melting peak and the presence of a glass transition temperature below 37°C. These polyesters were found to be hydrophilic and could be tailor-made into tubes and films. Porosity could also be introduced by addition of porogens. All the materials were non-cytotoxic in an in vitro cytotoxicity assay and may degrade via hydrolysis to non-toxic degradation products. These polyesters have potential implications in the field of soft tissue engineering on account of their similarity of properties.
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Affiliation(s)
- Lynda V Thomas
- Division of Tissue Engineering and Regeneration Technologies, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
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21
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Leppänen AS, Xu C, Eklund P, Lucenius J, Österberg M, Willför S. Targeted functionalization of spruceO-acetyl galactoglucomannans-2,2,6,6-tetramethylpiperidin-1-oxyl-oxidation and carbodiimide-mediated amidation. J Appl Polym Sci 2013. [DOI: 10.1002/app.39528] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Ann-Sofie Leppänen
- Laboratory of Wood and Paper Chemistry; Åbo Akademi University; 20500; Turku; Finland
| | | | - Patrik Eklund
- Laboratory of Organic Chemistry; Åbo Akademi University; 20500; Turku; Finland
| | - Jessica Lucenius
- Department of Forest Products Technology, School of Chemical Technology; Aalto University; 00076; Aalto; Finland
| | - Monika Österberg
- Department of Forest Products Technology, School of Chemical Technology; Aalto University; 00076; Aalto; Finland
| | - Stefan Willför
- Laboratory of Wood and Paper Chemistry; Åbo Akademi University; 20500; Turku; Finland
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Nadesh R, Narayanan D, P R S, Vadakumpully S, Mony U, Koyakkutty M, Nair SV, Menon D. Hematotoxicological analysis of surface-modified and -unmodified chitosan nanoparticles. J Biomed Mater Res A 2013; 101:2957-66. [PMID: 23613460 DOI: 10.1002/jbm.a.34591] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 11/29/2012] [Accepted: 12/11/2012] [Indexed: 11/06/2022]
Abstract
The increasing interest in using chitosan nanoparticles for controlled drug delivery is hampered by its blood incompatibility, especially for intravenous applications. This study investigated the effects of processing solvents (acetic acid/lactic acid), dispersing media (acidic medium/saline), and surface modifiers (polyethylene glycol, polyvinyl alcohol, and ethylenediaminetetraacetatic acid) on the hemocompatibility of chitosan. Blood compatibility of chitosan nanoparticles prepared by ionotropic gelation with altered surface chemistry was evaluated by assessing their hemolytic activity, platelet aggregation, coagulation, and cytokine induction. It was observed that nanoparticles prepared in lactic acid and dispersed in saline did not show hemolysis, platelet aggregation, or coagulation, whereas nanoparticles prepared in acetic acid showed strong hemolysis. Surface modifiers were not observed to significantly affect blood compatibility, with the exception of EDTA, which delayed blood clotting times. Thus, chitosan nanoparticles prepared in lactic acid and dispersed in saline may be an ideal nanocarrier for parenteral applications.
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Affiliation(s)
- Ragima Nadesh
- Amrita Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences & Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, Kerala, India
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The effect of crosslinking agents on the transfection efficiency, cellular and intracellular processing of DNA/polymer nanocomplexes. Biomaterials 2013; 34:3479-88. [DOI: 10.1016/j.biomaterials.2013.01.072] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 01/19/2013] [Indexed: 01/12/2023]
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24
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Park S, Jeong EJ, Lee J, Rhim T, Lee SK, Lee KY. Preparation and characterization of nonaarginine-modified chitosan nanoparticles for siRNA delivery. Carbohydr Polym 2013; 92:57-62. [DOI: 10.1016/j.carbpol.2012.08.116] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 08/31/2012] [Accepted: 08/31/2012] [Indexed: 12/11/2022]
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25
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Casettari L, Vllasaliu D, Lam JK, Soliman M, Illum L. Biomedical applications of amino acid-modified chitosans: A review. Biomaterials 2012; 33:7565-83. [DOI: 10.1016/j.biomaterials.2012.06.104] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 06/30/2012] [Indexed: 11/27/2022]
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26
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Shankarraman V, Davis-Gorman G, Copeland JG, Caplan MR, McDonagh PF. Standardized methods to quantify thrombogenicity of blood-contacting materials via thromboelastography. J Biomed Mater Res B Appl Biomater 2011; 100:230-8. [DOI: 10.1002/jbm.b.31942] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Revised: 04/08/2011] [Accepted: 07/07/2011] [Indexed: 11/08/2022]
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A biomimetic chitosan derivates: preparation, characterization and transdermal enhancement studies of N-arginine chitosan. Molecules 2011; 16:6778-90. [PMID: 21829153 PMCID: PMC6264446 DOI: 10.3390/molecules16086778] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 07/25/2011] [Accepted: 08/01/2011] [Indexed: 11/17/2022] Open
Abstract
A novel arginine-rich chitosan (CS) derivates mimicked cell penetration peptides; N-Arginine chitosan (N-Arg-CS) was prepared by two reaction methods involving activated L-arginine and the amine group on the chitosan. FTIR spectra showed that arginine was chemically coupled with CS. Elemental analysis estimated that the degrees of substitution (DS) of arginine in CS were 6%, 31.3% and 61.5%, respectively. The drug adefovir was chosen as model and its permeation flux across excised mice skin was investigated using a Franz diffusion cell. The results showed that the most effective enhancer was 2% (w/v) concentration of 10 kDa N-Arg-CS with 6% DS. At neutral pH, the cumulative amount of adefovir permeated after 12 hours was 2.63 ± 0.19 mg cm−2 which was 5.83-fold more than adefovir aqueous solution. Meanwhile N-Arg-CS was 1.83, 2.22, and 2.45 times more effective than Azone, eucalyptus and peppermint, respectively. The obtained results suggest that N-Arg-CS could be a promising transdermal enhancer.
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Zhang H, Zhu D, Song L, Liu L, Dong X, Liu Z, Leng X. Arginine conjugation affects the endocytic pathways of chitosan/DNA nanoparticles. J Biomed Mater Res A 2011; 98:296-302. [DOI: 10.1002/jbm.a.33115] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Revised: 03/02/2011] [Accepted: 03/22/2011] [Indexed: 12/19/2022]
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29
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Xiao B, Wan Y, Zhao M, Liu Y, Zhang S. Preparation and characterization of antimicrobial chitosan-N-arginine with different degrees of substitution. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.07.032] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Song L, Zhu D, Liu L, Dong X, Zhang H, Leng X. Evaluation of the coagulation properties of arginine-chitosan/DNA nanoparticles. J Biomed Mater Res B Appl Biomater 2010; 95:374-9. [DOI: 10.1002/jbm.b.31726] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Wittayasuporn M, Rengpipat S, Palaga T, Asawanonda P, Anumansirikul N, Wanichwecharungruang SP. Chitosan derivative nanocarrier: Safety evaluation, antibacterial property and ascorbyl palmitate encapsulation. J Microencapsul 2010. [DOI: 10.3109/02652040903067836] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gao Y, Xu Z, Chen S, Gu W, Chen L, Li Y. Arginine-chitosan/DNA self-assemble nanoparticles for gene delivery: In vitro characteristics and transfection efficiency. Int J Pharm 2008; 359:241-6. [DOI: 10.1016/j.ijpharm.2008.03.037] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2007] [Revised: 03/16/2008] [Accepted: 03/20/2008] [Indexed: 11/29/2022]
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33
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Zhu D, Zhang H, Bai J, Liu W, Leng X, Song C, Yang J, Li X, Jin X, Song L, Liu L, Li X, Zhang Y, Yao K. Enhancement of transfection efficiency for HeLa cells via incorporating arginine moiety into chitosan. ACTA ACUST UNITED AC 2007. [DOI: 10.1007/s11434-007-0455-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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34
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Cheng N, Liu W, Cao Z, Ji W, Liang D, Guo G, Zhang J. A study of thermoresponsive poly(N-isopropylacrylamide)/polyarginine bioconjugate non-viral transgene vectors. Biomaterials 2006; 27:4984-92. [PMID: 16759696 DOI: 10.1016/j.biomaterials.2006.05.017] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2006] [Accepted: 05/10/2006] [Indexed: 11/29/2022]
Abstract
A thermoresponsive poly(N-isopropylacrylamide)/poly(l-arginine)bioconjugate (PNIPArg) was prepared by radical polymerization and EDC-activated coupling. The lower critical solution temperature (LCST) of PNIPArg aqueous solution determined by turbidimetry was around 35.2 degrees Celsius. The transmission electron microscope (TEM) showed that the PNIPArg/DNA complexes appeared uniform nanospheres with size about 50-120nm. Variable temperature circular dichroism (CD) and gel electrophoresis results revealed that the association and dissociation of PNIPArg/DNA complexes could be tuned by varying temperature; polyarginine (PArg) showed no temperature-controllable change of DNA condensate. Incorporation of PNIPAAm considerably decreased the cytotoxicity of PArg. The transfection level of PNIPArg and PArg was evaluated with COS-1 cells using two different reporter genes, pGL3-Control encoding luciferase and pEGP-C1 encoding green fluorescent protein (GFP). The transfection efficiency of PNIPArg incubated at 37 degrees Celsius for 22h, 20 degrees Celsius for 2h and 37 degrees Celsius for 24h was enhanced to a different extent depending on PNIPArg/DNA ratios compared to that incubated at 37 degrees Celsius for 48h. Encouragingly, at PNIPArg/DNA mass ratio of 3/1, the transfection efficiency of PNIPArg obtained with variable temperature route was equivalent to that of Lipofectamine 2000.
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Affiliation(s)
- Nan Cheng
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, PR China
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