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Fu YJ, Wang RK, Ma CY, Wang LY, Long SY, Li K, Zhao X, Yang W. Injectable Oxygen-Carrying Microsphere Hydrogel for Dynamic Regulation of Redox Microenvironment of Wounds. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403781. [PMID: 38850188 DOI: 10.1002/smll.202403781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 05/29/2024] [Indexed: 06/10/2024]
Abstract
The delayed healing of infected wounds can be attributed to the increased production of reactive oxygen species (ROS) and consequent damages to vascellum and tissue, resulting in a hypoxic wound environment that further exacerbates inflammation. Current clinical treatments including hyperbaric oxygen therapy and antibiotic treatment fail to provide sustained oxygenation and drug-free resistance to infection. To propose a dynamic oxygen regulation strategy, this study develops a composite hydrogel with ROS-scavenging system and oxygen-releasing microspheres in the wound dressing. The hydrogel itself reduces cellular damage by removing ROS derived from immune cells. Simultaneously, the sustained release of oxygen from microspheres improves cell survival and migration in hypoxic environments, promoting angiogenesis and collagen regeneration. The combination of ROS scavenging and oxygenation enables the wound dressing to achieve drug-free anti-infection through activating immune modulation, inhibiting the secretion of pro-inflammatory cytokines interleukin-6, and promoting tissue regeneration in both acute and infected wounds of rat skins. Thus, the composite hydrogel dressing proposed in this work shows great potential for dynamic redox regulation of infected wounds and accelerates wound healing without drugs.
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Affiliation(s)
- Ya-Jun Fu
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Rao-Kaijuan Wang
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Cheng-Ye Ma
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Li-Ya Wang
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital, Med-X Center for Materials, Sichuan University, Chengdu, 610041, China
| | - Si-Yu Long
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Kai Li
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xing Zhao
- Department of Nephrology, Institute of Kidney Diseases, West China Hospital, Med-X Center for Materials, Sichuan University, Chengdu, 610041, China
| | - Wei Yang
- College of Polymer Science and Engineering, Sichuan University, Chengdu, 610065, China
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Krizanova O, Penesova A, Sokol J, Hokynkova A, Samadian A, Babula P. Signaling pathways in cutaneous wound healing. Front Physiol 2022; 13:1030851. [PMID: 36505088 PMCID: PMC9732733 DOI: 10.3389/fphys.2022.1030851] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 11/07/2022] [Indexed: 11/27/2022] Open
Abstract
Wound healing is a very complex process, where variety of different pathways is activated, depending on the phase of healing. Improper or interrupted healing might result in development of chronic wounds. Therefore, novel approaches based on detailed knowledge of signalling pathways that are activated during acute or chronic cutaneous wound healing enables quicker and more effective healing. This review outlined new possibilities of cutaneous wound healing by modulation of some signalling molecules, e.g., gasotransmitters, or calcium. Special focus is given to gasotransmitters, since these bioactive signalling molecules that can freely diffuse into the cell and exert antioxidative effects. Calcium is an important booster of immune system and it can significantly contribute to healing process. Special interest is given to chronic wounds caused by diabetes mellitus and overcoming problems with the inflammation.
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Affiliation(s)
- Olga Krizanova
- Institute of Clinical and Translational Research, Biomedical Research Center SAS, Bratislava, Slovakia,Department of Chemistry, Faculty of Natural Sciences, University of St. Cyril and Methodius, Trnava, Slovakia,Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Adela Penesova
- Institute of Clinical and Translational Research, Biomedical Research Center SAS, Bratislava, Slovakia
| | - Jozef Sokol
- Department of Chemistry, Faculty of Natural Sciences, University of St. Cyril and Methodius, Trnava, Slovakia
| | - Alica Hokynkova
- Department of Burns and Plastic Surgery, Faculty of Medicine, Masaryk University and University Hospital, Brno, Czechia
| | - Amir Samadian
- Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Petr Babula
- Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czechia,*Correspondence: Petr Babula,
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Shrivastav P, Pramanik S, Vaidya G, Abdelgawad MA, Ghoneim MM, Singh A, Abualsoud BM, Amaral LS, Abourehab MAS. Bacterial cellulose as a potential biopolymer in biomedical applications: a state-of-the-art review. J Mater Chem B 2022; 10:3199-3241. [PMID: 35445674 DOI: 10.1039/d1tb02709c] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Throughout history, natural biomaterials have benefited society. Nevertheless, in recent years, tailoring natural materials for diverse biomedical applications accompanied with sustainability has become the focus. With the progress in the field of materials science, novel approaches for the production, processing, and functionalization of biomaterials to obtain specific architectures have become achievable. This review highlights an immensely adaptable natural biomaterial, bacterial cellulose (BC). BC is an emerging sustainable biopolymer with immense potential in the biomedical field due to its unique physical properties such as flexibility, high porosity, good water holding capacity, and small size; chemical properties such as high crystallinity, foldability, high purity, high polymerization degree, and easy modification; and biological characteristics such as biodegradability, biocompatibility, excellent biological affinity, and non-biotoxicity. The structure of BC consists of glucose monomer units polymerized via cellulose synthase in β-1-4 glucan chains, creating BC nano fibrillar bundles with a uniaxial orientation. BC-based composites have been extensively investigated for diverse biomedical applications due to their similarity to the extracellular matrix structure. The recent progress in nanotechnology allows the further modification of BC, producing novel BC-based biomaterials for various applications. In this review, we strengthen the existing knowledge on the production of BC and BC composites and their unique properties, and highlight the most recent advances, focusing mainly on the delivery of active pharmaceutical compounds, tissue engineering, and wound healing. Further, we endeavor to present the challenges and prospects for BC-associated composites for their application in the biomedical field.
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Affiliation(s)
- Prachi Shrivastav
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Mohali, Punjab 160 062, India.,Bombay College of Pharmacy, Kolivery Village, Mathuradas Colony, Kalina, Vakola, Santacruz East, Mumbai, Maharashtra 400 098, India
| | - Sheersha Pramanik
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India.
| | - Gayatri Vaidya
- Department of Studies in Food Technology, Davangere University, Davangere 577007, Karnataka, India
| | - Mohamed A Abdelgawad
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Al Jouf 72341, Saudi Arabia
| | - Mohammed M Ghoneim
- Department of Pharmacy Practice, Faculty of Pharmacy, AlMaarefa University, Ad Diriyah 13713, Saudi Arabia
| | - Ajeet Singh
- Department of Pharmaceutical Sciences, J.S. University, Shikohabad, Firozabad, UP 283135, India.
| | - Bassam M Abualsoud
- Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, Al-Ahliyya Amman University, Amman, 19328, Jordan
| | - Larissa Souza Amaral
- Department of Bioengineering (USP ALUMNI), University of São Paulo (USP), Av. Trabalhador São Carlense, 400, 13566590, São Carlos (SP), Brazil
| | - Mohammed A S Abourehab
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia.,Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Minia University, Minia 11566, Egypt
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