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Xiang T, Guo Q, Jia L, Yin T, Huang W, Zhang X, Zhou S. Multifunctional Hydrogels for the Healing of Diabetic Wounds. Adv Healthc Mater 2024; 13:e2301885. [PMID: 37702116 DOI: 10.1002/adhm.202301885] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/10/2023] [Indexed: 09/14/2023]
Abstract
The healing of diabetic wounds is hindered by various factors, including bacterial infection, macrophage dysfunction, excess proinflammatory cytokines, high levels of reactive oxygen species, and sustained hypoxia. These factors collectively impede cellular behaviors and the healing process. Consequently, this review presents intelligent hydrogels equipped with multifunctional capacities, which enable them to dynamically respond to the microenvironment and accelerate wound healing in various ways, including stimuli -responsiveness, injectable self-healing, shape -memory, and conductive and real-time monitoring properties. The relationship between the multiple functions and wound healing is also discussed. Based on the microenvironment of diabetic wounds, antibacterial, anti-inflammatory, immunomodulatory, antioxidant, and pro-angiogenic strategies are combined with multifunctional hydrogels. The application of multifunctional hydrogels in the repair of diabetic wounds is systematically discussed, aiming to provide guidelines for fabricating hydrogels for diabetic wound healing and exploring the role of intelligent hydrogels in the therapeutic processes.
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Affiliation(s)
- Tao Xiang
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
- Key Laboratory of Advanced Technologies of Materials Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Qianru Guo
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
- Key Laboratory of Advanced Technologies of Materials Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Lianghao Jia
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
- Key Laboratory of Advanced Technologies of Materials Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Tianyu Yin
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
- Key Laboratory of Advanced Technologies of Materials Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Wei Huang
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
- Key Laboratory of Advanced Technologies of Materials Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Xinyu Zhang
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
- Key Laboratory of Advanced Technologies of Materials Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
| | - Shaobing Zhou
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P. R. China
- Key Laboratory of Advanced Technologies of Materials Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
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Cyclodextrin regulated natural polysaccharide hydrogels for biomedical applications-a review. Carbohydr Polym 2023; 313:120760. [PMID: 37182939 DOI: 10.1016/j.carbpol.2023.120760] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/08/2023] [Accepted: 02/24/2023] [Indexed: 03/12/2023]
Abstract
Cyclodextrin and its derivative (CDs) are natural building blocks for linking with other components to afford functional biomaterials. Hydrogels are polymer network systems that can form hydrophilic three-dimensional network structures through different cross-linking methods and are developing as potential materials in biomedical applications. Natural polysaccharide hydrogels (NPHs) are widely adopted in biomedical field with good biocompatibility, biodegradability, low cytotoxicity, and versatility in emulating natural tissue properties. Compared with conventional NPHs, CD regulated natural polysaccharide hydrogels (CD-NPHs) maintain good biocompatibility, while improving poor mechanical qualities and unpredictable gelation times. Recently, there has been increasing and considerable usage of CD-NPHs while there is still no review comprehensively introducing their construction, classification, and application of these hydrogels from the material point of view regarding biomedical fields. To draw a complete picture of the current and future development of CD-NPHs, we systematically overview the classification of CD-NPHs, and provide a holistic view on the role of CD-NPHs in different biomedical fields, especially in drug delivery, wound dressing, cell encapsulation, and tissue engineering. Moreover, the current challenges and prospects of CD-NPHs are discussed rationally, providing an insight into developing vibrant fields of CD-NPHs-based biomedicine, and facilitating their translation from bench to clinical medicine.
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The Influence of Novel, Biocompatible, and Bioresorbable Poly(3-hydroxyoctanoate) Dressings on Wound Healing in Mice. Int J Mol Sci 2022; 23:ijms232416159. [PMID: 36555799 PMCID: PMC9785414 DOI: 10.3390/ijms232416159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
The human body's natural protective barrier, the skin, is exposed daily to minor or major mechanical trauma, which can compromise its integrity. Therefore, the search for new dressing materials that can offer new functionalisation is fully justified. In this work, the development of two new types of dressings based on poly(3-hydroxyoctanoate) (P(3HO)) is presented. One of the groups was supplemented with conjugates of an anti-inflammatory substance (diclofenac) that was covalently linked to oligomers of hydroxycarboxylic acids (Oli-dicP(3HO)). The novel dressings were prepared using the solvent casting/particulate leaching technique. To our knowledge, this is the first paper in which P(3HO)-based dressings were used in mice wound treatment. The results of our research confirm that dressings based on P(3HO) are safe, do not induce an inflammatory response, reduce the expression of pro-inflammatory cytokines, provide adequate wound moisture, support angiogenesis, and, thanks to their hydrophobic characteristics, provide an ideal protective barrier. Newly designed dressings containing Oli-dicP(3HO) can promote tissue regeneration by partially reducing the inflammation at the injury site. To conclude, the presented materials might be potential candidates as excellent dressings for wound treatment.
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Syed Mohamed SMD, Ansari NF, Md Iqbal N, Anis SNS. Polyhydroxyalkanoates (PHA)-based responsive polymers. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2021.1962874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Nor Faezah Ansari
- Department of Biotechnology, Kulliyyah of Science, International Islamic University of Malaysia, Kuantan, Malaysia
- Research Unit for Bioinformatics and Computational Biology (RUBIC), International Islamic University of Malaysia, Kuantan, Malaysia
| | | | - Siti Nor Syairah Anis
- IJN-UTM Cardiovascular Engineering Centre, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
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Guo W, Yang K, Qin X, Luo R, Wang H, Huang R. Polyhydroxyalkanoates in tissue repair and regeneration. ENGINEERED REGENERATION 2022. [DOI: 10.1016/j.engreg.2022.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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6
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Virseda-Berdices A, Brochado-Kith O, Díez C, Hontañon V, Berenguer J, González-García J, Rojo D, Fernández-Rodríguez A, Ibañez-Samaniego L, Llop-Herrera E, Olveira A, Perez-Latorre L, Barbas C, Rava M, Resino S, Jiménez-Sousa MA. Blood microbiome is associated with changes in portal hypertension after successful direct-acting antiviral therapy in patients with HCV-related cirrhosis. J Antimicrob Chemother 2021; 77:719-726. [PMID: 34888660 DOI: 10.1093/jac/dkab444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/08/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Patients with a significant decrease in hepatic venous pressure gradient (HVPG) have a considerable reduction of liver complications and higher survival after HCV eradication. OBJECTIVES To evaluate the association between the baseline blood microbiome and the changes in HVPG after successful direct-acting antiviral (DAA) therapy in patients with HCV-related cirrhosis. METHODS We performed a prospective study in 32 cirrhotic patients (21 HIV positive) with clinically significant portal hypertension (HVPG ≥10 mmHg). Patients were assessed at baseline and 48 weeks after HCV treatment completion. The clinical endpoint was a decrease in HVPG of ≥20% or HVPG <12 mmHg at the end of follow-up. Bacterial 16S ribosomal DNA was sequenced using MiSeq Illumina technology, inflammatory plasma biomarkers were investigated using ProcartaPlex immunoassays and the metabolome was investigated using GC-MS. RESULTS During the follow-up, 47% of patients reached the clinical endpoint. At baseline, those patients had a higher relative abundance of Corynebacteriales and Diplorickettsiales order, Diplorickettsiaceae family, Corynebacterium and Aquicella genus and Undibacterium parvum species organisms and a lower relative abundance of Oceanospirillales and Rhodospirillales order, Halomonadaceae family and Massilia genus organisms compared with those who did not achieve the clinical endpoint according to the LEfSe algorithm. Corynebacteriales and Massilia were consistently found within the 10 bacterial taxa with the highest differential abundance between groups. Additionally, the relative abundance of the Corynebacteriales order was inversely correlated with IFN-γ, IL-17A and TNF-α levels and the Massilia genus with glycerol and lauric acid. CONCLUSIONS Baseline-specific bacterial taxa are related to an HVPG decrease in patients with HCV-related cirrhosis after successful DAA therapy.
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Affiliation(s)
- Ana Virseda-Berdices
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Majadahonda, Madrid, Spain
| | - Oscar Brochado-Kith
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Majadahonda, Madrid, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Infecciosas, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Cristina Díez
- Centro de Investigación Biomédica en Red en Enfermedades Infecciosas, Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Unidad de Enfermedades Infecciosas/VIH, Hospital General Universitario 'Gregorio Marañón', Madrid, Spain.,Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Victor Hontañon
- Centro de Investigación Biomédica en Red en Enfermedades Infecciosas, Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Servicio de Medicina Interna-Unidad de VIH, Hospital Universitario La Paz, Madrid, Spain.,Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid, Spain
| | - Juan Berenguer
- Centro de Investigación Biomédica en Red en Enfermedades Infecciosas, Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Unidad de Enfermedades Infecciosas/VIH, Hospital General Universitario 'Gregorio Marañón', Madrid, Spain.,Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Juan González-García
- Centro de Investigación Biomédica en Red en Enfermedades Infecciosas, Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Servicio de Medicina Interna-Unidad de VIH, Hospital Universitario La Paz, Madrid, Spain.,Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid, Spain
| | - David Rojo
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28660 Boadilla del Monte, Madrid, Spain
| | - Amanda Fernández-Rodríguez
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Majadahonda, Madrid, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Infecciosas, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Luis Ibañez-Samaniego
- Servicio de Aparato Digestivo, Hospital General Universitario 'Gregorio Marañón', Madrid, Spain
| | - Elba Llop-Herrera
- Departamento de Gastroenterología, Hospital Universitario Puerta de Hierro-Majadahonda, Majadahonda, Madrid, Spain
| | - Antonio Olveira
- Servicio de Aparato Digestivo, Hospital Universitario La Paz, Madrid, Spain
| | - Leire Perez-Latorre
- Centro de Investigación Biomédica en Red en Enfermedades Infecciosas, Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Unidad de Enfermedades Infecciosas/VIH, Hospital General Universitario 'Gregorio Marañón', Madrid, Spain.,Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - Coral Barbas
- Centre for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28660 Boadilla del Monte, Madrid, Spain
| | - Marta Rava
- Unidad de la Cohorte de la Red de Investigación en Sida (CoRIS), Centro Nacional de Epidemiologia (CNE), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Salvador Resino
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Majadahonda, Madrid, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Infecciosas, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - María Angeles Jiménez-Sousa
- Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Majadahonda, Madrid, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Infecciosas, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
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Ragothaman M, Kannan Villalan A, Dhanasekaran A, Palanisamy T. Bio-hybrid hydrogel comprising collagen-capped silver nanoparticles and melatonin for accelerated tissue regeneration in skin defects. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112328. [PMID: 34474879 DOI: 10.1016/j.msec.2021.112328] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/29/2021] [Accepted: 07/18/2021] [Indexed: 01/22/2023]
Abstract
Hydrogel-based drug delivery systems have emerged as a promising platform for chronic tissue defects owing to their inherent ability to inhibit pathogenic infection and accelerate rapid tissue regeneration. Here, we fabricated a stable bio-hybrid hydrogel system comprising collagen, aminated xanthan gum, bio-capped silver nanoparticles and melatonin with antimicrobial, antioxidant and anti-inflammatory properties. Highly colloidal bio-capped silver nanoparticles were synthesized using collagen as a reducing cum stabilizing agent for the first time while aminated xanthan gum was synthesized using ethylenediamine treatment on xanthan gum. The synthesized bio-hybrid hydrogel exhibits better gelation, surface morphology, rheology and degelation properties. In vitro assessment of bio-hybrid hydrogel demonstrates excellent bactericidal efficiency against both common wound and multidrug-resistant pathogens and biocompatibility properties. In vivo animal studies demonstrate rapid tissue regeneration, collagen deposition and angiogenesis at the wound site predominantly due to the synergistic effect of silver nanoparticles and melatonin in the hydrogel. This study paves the way for developing biologically functional bio-nano hydrogel systems for promoting effective care for various ailments, including infected chronic wounds.
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Affiliation(s)
- Murali Ragothaman
- Centre for Biotechnology, Anna University, Chennai 600025, India; Advanced Materials Laboratory, Central Leather Research Institute (Council of Scientific and Industrial Research), Adyar, Chennai 600020, India
| | - Arivizhivendhan Kannan Villalan
- Advanced Materials Laboratory, Central Leather Research Institute (Council of Scientific and Industrial Research), Adyar, Chennai 600020, India
| | | | - Thanikaivelan Palanisamy
- Advanced Materials Laboratory, Central Leather Research Institute (Council of Scientific and Industrial Research), Adyar, Chennai 600020, India.
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8
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Yao A, Li Z, Lyu J, Yu L, Wei S, Xue L, Wang H, Chen GQ. On the nutritional and therapeutic effects of ketone body D-β-hydroxybutyrate. Appl Microbiol Biotechnol 2021; 105:6229-6243. [PMID: 34415393 PMCID: PMC8377336 DOI: 10.1007/s00253-021-11482-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 12/31/2022]
Abstract
Abstract d-β-hydroxybutyrate (d-3HB), a monomer of microbial polyhydroxybutyrate (PHB), is also a natural ketone body produced during carbohydrate deprivation to provide energy to the body cells, heart, and brain. In recent years, increasing evidence demonstrates that d-3HB can induce pleiotropic effects on the human body which are highly beneficial for improving physical and metabolic health. Conventional ketogenic diet (KD) or exogenous ketone salts (KS) and esters (KE) have been used to increase serum d-3HB level. However, strict adaptation to the KD was often associated with poor patient compliance, while the ingestion of KS caused gastrointestinal distresses due to excessive consumption of minerals. As for ingestion of KE, subsequent degradation is required before releasing d-3HB for absorption, making these methods somewhat inferior. This review provides novel insights into a biologically synthesized d-3HB (d-3-hydroxybutyric acid) which can induce a faster increase in plasma d-3HB compared to the use of KD, KS, or KE. It also emphasizes on the most recent applications of d-3HB in different fields, including its use in improving exercise performance and in treating metabolic or age-related diseases. Ketones may become a fourth micro-nutrient that is necessary to the human body along with carbohydrates, proteins, and fats. Indeed, d-3HB being a small molecule with multiple signaling pathways within the body exhibits paramount importance in mitigating metabolic and age-related diseases. Nevertheless, specific dose–response relationships and safety margins of using d-3HB remain to be elucidated with more research. Key points • d-3HB induces pleiotropic effects on physical and metabolic health. • Exogenous ketone supplements are more effective than ketogenic diet. • d-3HB as a ketone supplement has long-term healthy impact.
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Affiliation(s)
- Aliya Yao
- MedPHA Bioscience Co. Ltd., Traditional Chinese Medicine Science and Technology Industrial Park of Co-Operation Between Guangdong and Macau, Building No.103, 36 Doukou Rd, Hengqin District, Zhuhai, 519030, Guangdong Province, China
| | - Zihua Li
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Jinyan Lyu
- MedPHA Bioscience Co. Ltd., Traditional Chinese Medicine Science and Technology Industrial Park of Co-Operation Between Guangdong and Macau, Building No.103, 36 Doukou Rd, Hengqin District, Zhuhai, 519030, Guangdong Province, China
| | - Liusong Yu
- MedPHA Bioscience Co. Ltd., Traditional Chinese Medicine Science and Technology Industrial Park of Co-Operation Between Guangdong and Macau, Building No.103, 36 Doukou Rd, Hengqin District, Zhuhai, 519030, Guangdong Province, China
| | - Situ Wei
- MedPHA Bioscience Co. Ltd., Traditional Chinese Medicine Science and Technology Industrial Park of Co-Operation Between Guangdong and Macau, Building No.103, 36 Doukou Rd, Hengqin District, Zhuhai, 519030, Guangdong Province, China
| | - Lingyun Xue
- MedPHA Bioscience Co. Ltd., Traditional Chinese Medicine Science and Technology Industrial Park of Co-Operation Between Guangdong and Macau, Building No.103, 36 Doukou Rd, Hengqin District, Zhuhai, 519030, Guangdong Province, China
| | - Hui Wang
- Department of Colorectal Surgery, Guangdong Province Biomedical Material Conversion and Evaluation Engineering Technology Center, Institute of Biomedical Innovation, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510655, Guangdong Province, China
| | - Guo-Qiang Chen
- MedPHA Bioscience Co. Ltd., Traditional Chinese Medicine Science and Technology Industrial Park of Co-Operation Between Guangdong and Macau, Building No.103, 36 Doukou Rd, Hengqin District, Zhuhai, 519030, Guangdong Province, China. .,School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China. .,School of Life Sciences and Dept Chemical Engineering, Center for Synthetic and Systems Biology (CSSB), Tsinghua University, Beijing, 100084, China.
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Rahmanian-Devin P, Baradaran Rahimi V, Askari VR. Thermosensitive Chitosan- β-Glycerophosphate Hydrogels as Targeted Drug Delivery Systems: An Overview on Preparation and Their Applications. Adv Pharmacol Pharm Sci 2021; 2021:6640893. [PMID: 34036263 PMCID: PMC8116164 DOI: 10.1155/2021/6640893] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 04/09/2021] [Accepted: 04/20/2021] [Indexed: 12/14/2022] Open
Abstract
Today, with the advances in technology and science, more advanced drug delivery formulations are required. One of these new systems is an intelligent hydrogel. These systems are affected by the environment or conditions that become a gel, stay in the circumstance for a certain period, and slowly release the drug. As an advantage, only a lower dose of the drug is required, and it provides less toxicity and minor damage to other tissues. Hydrogels are of different types, including temperature-sensitive, pH-sensitive, ion change-sensitive, and magnetic field-sensitive. In this study, we investigated a kind of temperature-sensitive smart hydrogel, which has a liquid form at room temperature and becomes gel with increasing temperature. Chitosan-β-glycerophosphate hydrogels have been researched and used in many studies. This study investigates the various factors that influence the gelation mechanism, such as gel formation rates, temperature, pH, time, and gel specificity. Hydrogels are used in many drug delivery systems and diseases, including nasal drug delivery, vaginal drug delivery, wound healing, peritoneal adhesion, ophthalmic drug delivery, tissue engineering, and peptide and protein delivery. Overall, the chitosan-β-glycerophosphate hydrogel is a suitable drug carrier for a wide range of drugs. It shows little toxicity to the body, is biodegradable, and is compatible with other organs. This system can be used in different conditions and different medication ways, such as oral, nasal, and injection.
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Affiliation(s)
- Pouria Rahmanian-Devin
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vafa Baradaran Rahimi
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Reza Askari
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Pharmaceutical Sciences in Persian Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Persian Medicine, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Hinchliffe JD, Parassini Madappura A, Syed Mohamed SMD, Roy I. Biomedical Applications of Bacteria-Derived Polymers. Polymers (Basel) 2021; 13:1081. [PMID: 33805506 PMCID: PMC8036740 DOI: 10.3390/polym13071081] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 12/12/2022] Open
Abstract
Plastics have found widespread use in the fields of cosmetic, engineering, and medical sciences due to their wide-ranging mechanical and physical properties, as well as suitability in biomedical applications. However, in the light of the environmental cost of further upscaling current methods of synthesizing many plastics, work has recently focused on the manufacture of these polymers using biological methods (often bacterial fermentation), which brings with them the advantages of both low temperature synthesis and a reduced reliance on potentially toxic and non-eco-friendly compounds. This can be seen as a boon in the biomaterials industry, where there is a need for highly bespoke, biocompatible, processable polymers with unique biological properties, for the regeneration and replacement of a large number of tissue types, following disease. However, barriers still remain to the mass-production of some of these polymers, necessitating new research. This review attempts a critical analysis of the contemporary literature concerning the use of a number of bacteria-derived polymers in the context of biomedical applications, including the biosynthetic pathways and organisms involved, as well as the challenges surrounding their mass production. This review will also consider the unique properties of these bacteria-derived polymers, contributing to bioactivity, including antibacterial properties, oxygen permittivity, and properties pertaining to cell adhesion, proliferation, and differentiation. Finally, the review will select notable examples in literature to indicate future directions, should the aforementioned barriers be addressed, as well as improvements to current bacterial fermentation methods that could help to address these barriers.
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Affiliation(s)
| | | | | | - Ipsita Roy
- Department of Materials Science and Engineering, Faculty of Engineering, University of Sheffield, Sheffield S1 3JD, UK; (J.D.H.); (A.P.M.); (S.M.D.S.M.)
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11
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12
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Gu S, Dai H, Zhao X, Gui C, Gui J. AKT3 deficiency in M2 macrophages impairs cutaneous wound healing by disrupting tissue remodeling. Aging (Albany NY) 2020; 12:6928-6946. [PMID: 32291381 PMCID: PMC7202485 DOI: 10.18632/aging.103051] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 03/04/2020] [Indexed: 12/14/2022]
Abstract
AKT signaling and M2 macrophage-guided tissue repair are key factors in cutaneous wound healing. A delay in this process threatens human health worldwide. However, the role of AKT3 in delayed cutaneous wound healing is largely unknown. In this study, histological staining and transcriptomics demonstrated that prolonged tissue remodeling delayed wound healing. This delay was accompanied by defects in AKT3, collagen alpha-1(I) chain (COL1A1), and collagen alpha-1(XI) chain (COL11A1) expression and AKT signaling. The defect in AKT3 expression was M2 macrophage-specific, and decreased AKT3 protein levels were observed in CD68/CD206-positive macrophages from delayed wound tissue. Downregulation of AKT3 in M2 macrophages did not influence cell polarization but impaired collagen organization by inhibiting COL1A1 and COL11A1 expression in human skin fibroblasts (HSFs). Moreover, a co-culture model revealed that the downregulation of AKT3 in the human monocytic cell line (THP-1)-derived M2 macrophages impaired HSF proliferation and migration. Finally, cutaneous wound healing in AKT3-/- mice was much slower than that of AKT3+/+ mice, and F4/80 macrophages from the AKT3-/- mice had an impaired ability to promote wound healing. Thus, the downregulation of AKT3 in M2 macrophages prolonged tissue remodeling and delayed cutaneous wound healing.
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Affiliation(s)
- Song Gu
- Department of Sports Medicine and Joint Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, P.R. China.,Trauma Center, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
| | - Hanhao Dai
- Department of Sports Medicine and Joint Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, P.R. China
| | - Xilian Zhao
- Department of Sports Medicine and Joint Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, P.R. China
| | - Chang Gui
- Department of Biomedical Engineering, Washington University in St. Louis, MO 63130, USA
| | - Jianchao Gui
- Department of Sports Medicine and Joint Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, P.R. China
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Jian J, Yi-Heng H, Bang-Hui Z, Jian-Hua C, Xu-Dong Z, Shi-Chu X, Peng-Fei L, Xiao-Yan H, Zhao-Fan X. Effects of depression on healing and inflammatory responses of acute wounds in rats. Wound Repair Regen 2019; 27:462-469. [PMID: 31077486 DOI: 10.1111/wrr.12726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Accepted: 04/22/2019] [Indexed: 11/28/2022]
Abstract
This study aimed to elucidate the effect of depression on the healing of acute wounds in rats. We hypothesized that depression would have negative effects on inflammation and wound healing and that antidepressant therapy would reverse these effects. This study included 100 rats randomly allocated into five groups: control group (CG), depression group (DG), pre-depression group (PDG), antidepressant group (AG), and pre-antidepressant group (PAG). Acute wounds were created on the rats' backs. The groups were subjected to no interventions (CG), aversive stimuli before (PDG) and after (DG) wound creation, and antidepressant treatment before (PAG) and after (AG) wound creation. On the day of wound creation and on days 3, 6, 9, and 12 after wound creation, observations of the wound area and degree of depression (evaluated using the sucrose preference test, open-field test, and weight change) were recorded. On days 6 and 12 after wound creation, venous serum and wound tissues were collected. Tumor necrosis factor alpha (TNF-α), interleukin (IL)-1β, IL-6, and IL-10 levels were measured using the enzyme-linked immunosorbent assay. Results showed an initial increase followed by a decrease in the degree of depression in all groups except DG (continuous decline). The wound-healing rate was significantly lower in PDG and DG than in CG; it was higher in AG and PAG than in CG. DG and PDG had higher concentrations of inflammatory cytokines than CG, and AG and PAG had lower concentrations than CG. This indicates that the onset of depression delays the healing of acute wounds and aggravates the inflammatory response in rats. Antidepressant treatment counteracts both of these negative effects.
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Affiliation(s)
- Jin Jian
- Department of Burn and Plastic Surgery, 903 Hospital of PLA, Hangzhou, 313000, Zhengjiang Province, China
| | - Huang Yi-Heng
- Pharmacy College, Fudan University, Shanghai, 200433, China
| | - Zhu Bang-Hui
- Department of Burns, Changhai Hospital Affiliated to the Second Military Medical University, Shanghai, 200433, China
| | - Chen Jian-Hua
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai, 200433, China
| | - Zhang Xu-Dong
- Department of Burn and Plastic Surgery, 903 Hospital of PLA, Hangzhou, 313000, Zhengjiang Province, China
| | - Xiao Shi-Chu
- Department of Burns, Changhai Hospital Affiliated to the Second Military Medical University, Shanghai, 200433, China
| | - Luo Peng-Fei
- Department of Burns, Changhai Hospital Affiliated to the Second Military Medical University, Shanghai, 200433, China
| | - Hu Xiao-Yan
- Department of Burns, Changhai Hospital Affiliated to the Second Military Medical University, Shanghai, 200433, China
| | - Xia Zhao-Fan
- Department of Burns, Changhai Hospital Affiliated to the Second Military Medical University, Shanghai, 200433, China
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Latfi ASA, Pramanik S, Poon CT, Gumel AM, Lai KW, Annuar MSM, Pingguan-Murphy B. Structural and bone marrow stem cell biocompatibility studies of hydrogel synthesized via chemo-enzymatic route. J Biomater Appl 2018; 33:854-865. [PMID: 30458659 DOI: 10.1177/0885328218812490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Natural biopolymers have many attractive medical applications; however, complications due to fibrosis caused a reduction in diffusion and dispersal of nutrients and waste products. Consequently, severe immunocompatibility problems and poor mechanical and degradation properties in synthetic polymers ensue. Hence, the present study investigates a novel hydrogel material synthesized from caprolactone, ethylene glycol, ethylenediamine, polyethylene glycol, ammonium persulfate, and tetramethylethylenediamine via chemo-enzymatic route. Spectroscopic analyses indicated the formation of polyurea and polyhydroxyurethane as the primary building block of the hydrogel starting material. Biocompatibility studies showed positive observation in biosafety test using direct contact cytotoxicity assay in addition to active cellular growth on the hydrogel scaffold based on fluorescence observation. The synthesized hydrogel also exhibited (self)fluorescence properties under specific wavelength excitation. Hence, synthesized hydrogel could be a potential candidate for medical imaging as well as tissue engineering applications as a tissue expander, coating material, biosensor, and drug delivery system.
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Affiliation(s)
- Ahmad Safwan Ahmad Latfi
- 1 Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
| | - Sumit Pramanik
- 2 Department of Mechanical Engineering, SRM Institute of Science and Technology, Chennai, India
| | - Chi Tat Poon
- 1 Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
| | - Ahmad Mohammed Gumel
- 3 Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Khin Wee Lai
- 1 Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Belinda Pingguan-Murphy
- 1 Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
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Stradiot L, Mannaerts I, van Grunsven LA. P311, Friend, or Foe of Tissue Fibrosis? Front Pharmacol 2018; 9:1151. [PMID: 30369881 PMCID: PMC6194156 DOI: 10.3389/fphar.2018.01151] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 09/24/2018] [Indexed: 01/26/2023] Open
Abstract
P311 was first identified by the group of Studler et al. (1993) in the developing brain. In healthy, but mainly in pathological tissues, P311 is implicated in cell migration and proliferation. Furthermore, evidence in models of tissue fibrosis points to the colocalization with and the stimulation of transforming growth factor β1 by P311. This review provides a comprehensive overview on P311 and discusses its potential as an anti-fibrotic target.
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Affiliation(s)
- Leslie Stradiot
- Liver Cell Biology Lab, Vrije Universiteit Brussel, Brussels, Belgium
| | - Inge Mannaerts
- Liver Cell Biology Lab, Vrije Universiteit Brussel, Brussels, Belgium
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16
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Zhao Y, Liu JG, Chen WM, Yu AX. Efficacy of thermosensitive chitosan/β-glycerophosphate hydrogel loaded with β-cyclodextrin-curcumin for the treatment of cutaneous wound infection in rats. Exp Ther Med 2017; 15:1304-1313. [PMID: 29434717 PMCID: PMC5776171 DOI: 10.3892/etm.2017.5552] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 11/22/2017] [Indexed: 01/01/2023] Open
Abstract
Wound infection has been a persistent problem that is common and costly. Thermosensitive hydrogel has been demonstrated to be a suitable dressing candidate due to its high moldability, easy administration and ability to maintain a moist topical environment at the wound bed. In the present study, a novel thermosensitive hydrogel was successfully prepared and characterized to have a porous inner structure and a sustained curcumin-releasing profile. The wound healing ability of the hydrogel was investigated in a wound infection model in rats. On analysis, it was observed that the hydrogel complex-dressed wounds exhibited a faster wound closure rate compared with gauze-covered wounds, which was paralleled with improved histological outcomes that were observed. Additionally, the results of in vitro antimicrobial, anti-oxidant, western blot analysis and reverse transcription-quantitative polymerase chain reaction assays indicated that the hydrogel complex had distinct anti-oxidative, antimicrobial and anti-nuclear factor-κB-signaling capacities. These results suggest that this novel hydrogel may be a suitable candidate for facilitating the healing of infected cutaneous wounds in rats.
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Affiliation(s)
- Yong Zhao
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Jia-Guo Liu
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China.,Department of Orthopedics, Hubei University of Medicine Affiliated Taihe Hospital, Shiyan, Hubei 442000, P.R. China
| | - Wei-Min Chen
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Ai-Xi Yu
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
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Rizzi ES, Dourado DM, Matias R, Muller JAI, Guilhermino JF, Guerrero ATG, Moreira DL, Silva BAK, Barbosa-Ferreira M. Wound-Healing potential of Sebastiania hispida (Mart.) Pax (Euphorbiaceae) ointment compared to low power laser in rats. BRAZ J BIOL 2016; 77:480-489. [DOI: 10.1590/1519-6984.16115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 04/22/2016] [Indexed: 12/30/2022] Open
Abstract
Abstract Impaired wound healing represents a serious complication in some pathologies and the use of plant extracts has proved to improve tissue repair. The objectives of this study were to evaluate the healing potential of the ointment of Sebastiana hispida compared with Aluminum-Gallium Indium-Phosphide Laser (InGaAlP) in surgically induced wounds in rats and to perform the phytochemical analysis. The phytochemical analysis was performed in the classic way and also by HPLC. A controlled study was developed with 80 rats (200-250 g) in which a linear excision was performed in the dorsal region after shaving, measuring 2 cm × 1 cm (epidermis and dermis) exposing the muscle fascia. The rats were randomly divided into four groups of twenty animals each. The experimental groups (n = 5) were G1 (Saline); G2 (crude methanol plant extract 2% + Carbopol Gel 98%); G3 (crude methanol plant extract 2% + lanolin/vaseline) and G4 (laser). The incision healing processes were monitored during 3, 7, 14 and until 21 days after excision. The histologic parameters evaluated were Collagen fiber types, microscopic examination and neovascularization. There was a significant increase in the deposition of collagen fibers, as evidenced by a better organized epithelial tissue, keratinized and showing greater proliferation of new blood vessels in the inflammatory phase in the group treated with both the extract and laser. The results were correlated to the phenolic derivatives found after qualitative and quantitative analysis. These compounds were considered responsible for the healing process. The topical treatment with S. hispida leaves, in the two different formulations, was more effective than the application of the laser (Ingan ALP) 660 nm in the model used.
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Thermomyces lanuginosus lipase-catalyzed synthesis of natural flavor esters in a continuous flow microreactor. 3 Biotech 2016; 6:24. [PMID: 28330099 PMCID: PMC4711288 DOI: 10.1007/s13205-015-0355-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 12/24/2015] [Indexed: 12/17/2022] Open
Abstract
Enzymatic catalysis is considered to be among the most environmental friendly processes for the synthesis of fine chemicals. In this study, lipase from Thermomyces lanuginosus (Lecitase Ultra™) was used to catalyze the synthesis of flavor esters, i.e., methyl butanoate and methyl benzoate by esterification of the acids with methanol in a microfluidic system. Maximum reaction rates of 195 and 115 mM min−1 corresponding to catalytic efficiencies (kcat/KM) of 0.30 and 0.24 min−1 mM−1 as well as yield conversion of 54 and 41 % were observed in methyl butanoate and methyl benzoate synthesis, respectively. Catalytic turnover (kcat) was higher for methyl butanoate synthesis. Rate of synthesis and yield decreased with increasing flow rates. For both esters, increase in microfluidic flow rate resulted in increased advective transport over molecular diffusion and reaction rate, thus lower conversion. In microfluidic synthesis using T. lanuginosus lipase, the following reaction conditions were 40 °C, flow rate 0.1 mL min−1, and 123 U g−1 enzyme loading found to be the optimum operating limits. The work demonstrated the application of enzyme(s) in a microreactor system for the synthesis of industrially important esters.
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