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Su J, Yu W, Guo X, Wang C, Wang Q, Chen B, Hu Y, Dai H. Development and Evaluation of a Novel Antibacterial Wound Dressing: A Powder Preparation Based on Cross-Linked Pullulan with Polyhexamethylene Biguanide for Hydrogel-Transition in Advanced Wound Management and Infection Control. Polymers (Basel) 2024; 16:1352. [PMID: 38794544 PMCID: PMC11124900 DOI: 10.3390/polym16101352] [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: 03/25/2024] [Revised: 05/05/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
As antibiotic resistance increasingly undermines traditional infection management strategies, there is a critical demand for innovative wound care solutions that address these emerging challenges. This study introduces a novel antibacterial wound dressing based on Cross-Linked Pullulan (Pul) and Polyhexamethylene Biguanide (PHMB) for enhanced wound management and infection control. The dressing's adsorption rate reached 200% of its original weight within 30 min, exceeded 300% after 5 h, and exhibited significant non-Newtonian fluid properties. The dressings were able to release the loaded medication completely within 20 min; additionally, the dressing demonstrated significant antibacterial activity against a broad spectrum of bacteria. Significantly, the therapeutic effects of the Pul-PHMB/GP dressing were evaluated in a mouse model. Compared to untreated wounds, wounds treated with Pul-PHMB/GP exhibited a significant gelation process within 5 min post-treatment and showed a significant increase in wound healing rate within 12 days. This powder preparation overcomes the limitations associated with liquid and gel dressings, notably in storage and precise application, preventing the premature expansion or dissolution often caused by PHMB in high-humidity environments. The powder form can transform into a gel upon contact with wound exudate, ensuring accurate coverage of irregular wounds, such as those from burns or pressure sores, and offers excellent chemical and physical stability in a dry state, which facilitates storage and transport. This makes the dressing particularly suitable for emergency medical care and precision therapy, significantly improving the efficiency and adaptability of wound treatment and providing robust support for clinical treatments and emergency responses.
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Affiliation(s)
- Jiangtao Su
- School of Life and Health Sciences, Hubei University of Technology, No. 28, Nanli Road, Wuhan 430068, China; (J.S.); (W.Y.); (X.G.); (C.W.); (Q.W.); (B.C.); (Y.H.)
- National ‘111’ Center for Cellular Regulation and Molecular Pharmaceutics, Hubei University of Technology, Wuhan 430068, China
- Key Laboratory of Industrial Microbiology in Hubei, Hubei University of Technology, Wuhan 430068, China
- Hubei Province Cooperative Innovation Center for Industrial Fermentation, Hubei University of Technology, Wuhan 430068, China
| | - Wantao Yu
- School of Life and Health Sciences, Hubei University of Technology, No. 28, Nanli Road, Wuhan 430068, China; (J.S.); (W.Y.); (X.G.); (C.W.); (Q.W.); (B.C.); (Y.H.)
| | - Xiaoxia Guo
- School of Life and Health Sciences, Hubei University of Technology, No. 28, Nanli Road, Wuhan 430068, China; (J.S.); (W.Y.); (X.G.); (C.W.); (Q.W.); (B.C.); (Y.H.)
- National ‘111’ Center for Cellular Regulation and Molecular Pharmaceutics, Hubei University of Technology, Wuhan 430068, China
| | - Chaofan Wang
- School of Life and Health Sciences, Hubei University of Technology, No. 28, Nanli Road, Wuhan 430068, China; (J.S.); (W.Y.); (X.G.); (C.W.); (Q.W.); (B.C.); (Y.H.)
| | - Qianqiu Wang
- School of Life and Health Sciences, Hubei University of Technology, No. 28, Nanli Road, Wuhan 430068, China; (J.S.); (W.Y.); (X.G.); (C.W.); (Q.W.); (B.C.); (Y.H.)
| | - Ban Chen
- School of Life and Health Sciences, Hubei University of Technology, No. 28, Nanli Road, Wuhan 430068, China; (J.S.); (W.Y.); (X.G.); (C.W.); (Q.W.); (B.C.); (Y.H.)
| | - Yuchen Hu
- School of Life and Health Sciences, Hubei University of Technology, No. 28, Nanli Road, Wuhan 430068, China; (J.S.); (W.Y.); (X.G.); (C.W.); (Q.W.); (B.C.); (Y.H.)
| | - Heshuang Dai
- School of Life and Health Sciences, Hubei University of Technology, No. 28, Nanli Road, Wuhan 430068, China; (J.S.); (W.Y.); (X.G.); (C.W.); (Q.W.); (B.C.); (Y.H.)
- National ‘111’ Center for Cellular Regulation and Molecular Pharmaceutics, Hubei University of Technology, Wuhan 430068, China
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Cruz Sánchez E, García MT, Gracia I, Fernández-Bermejo SI, Rodríguez JF, García-Vargas JM, Vidal Roig D. Antibacterial Activity Assessment of Chitosan/Alginate Lavender Essential Oil Membranes for Biomedical Applications. MEMBRANES 2024; 14:12. [PMID: 38248702 PMCID: PMC10818663 DOI: 10.3390/membranes14010012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/29/2023] [Accepted: 12/30/2023] [Indexed: 01/23/2024]
Abstract
The demand for natural products in the treatment of dermatological pathologies has boosted the use of bioactive substances such as lavender essential oil (LEO), which stands out for its anti-inflammatory and antioxidant properties and its antimicrobial potential. Biopolymers such as chitosan (CHT) and alginate (ALG) are biodegradable and biocompatible and have proven their viability in biomedical applications such as skin regeneration. The inhibitory effect of LEO on the growth of skin-related bacterial species Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa and the fungus Candida albicans was studied by incorporating 1% v/v LEO encapsulated in CHT, ALG, and CHT/ALG membranes. Despite the verification of the antimicrobial effect of all type of membranes, no synergistic effect was observed following the addition of LEO. S. aureus and P. aeruginosa showed the most growth on the different substrates and C. albicans demonstrated the highest inhibition. This is a first approach using microorganisms isolated from clinical samples or skin microbiota. Further investigation would be advisable using more clinical strains for each microorganism to validate their biomedical applicability.
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Affiliation(s)
- Encarnación Cruz Sánchez
- Department of Chemical Engineering, Facultad de Ciencias y Tecnologías Químicas, University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071 Ciudad Real, Spain; (E.C.S.); (M.T.G.); (I.G.); (J.F.R.); (J.M.G.-V.)
| | - María Teresa García
- Department of Chemical Engineering, Facultad de Ciencias y Tecnologías Químicas, University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071 Ciudad Real, Spain; (E.C.S.); (M.T.G.); (I.G.); (J.F.R.); (J.M.G.-V.)
| | - Ignacio Gracia
- Department of Chemical Engineering, Facultad de Ciencias y Tecnologías Químicas, University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071 Ciudad Real, Spain; (E.C.S.); (M.T.G.); (I.G.); (J.F.R.); (J.M.G.-V.)
| | - Soledad Illescas Fernández-Bermejo
- Department of Medical Sciences, Microbiology Area, Facultad de Medicina, University of Castilla-La Mancha, Paseo de Moledores s/n, 13071 Ciudad Real, Spain;
- Department of Microbiology, Hospital General Universitario de Ciudad Real, Obispo Rafael Torija s/n, 13005 Ciudad Real, Spain
| | - Juan Francisco Rodríguez
- Department of Chemical Engineering, Facultad de Ciencias y Tecnologías Químicas, University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071 Ciudad Real, Spain; (E.C.S.); (M.T.G.); (I.G.); (J.F.R.); (J.M.G.-V.)
| | - Jesús Manuel García-Vargas
- Department of Chemical Engineering, Facultad de Ciencias y Tecnologías Químicas, University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071 Ciudad Real, Spain; (E.C.S.); (M.T.G.); (I.G.); (J.F.R.); (J.M.G.-V.)
| | - Dolors Vidal Roig
- Department of Medical Sciences, Microbiology Area, Facultad de Medicina, University of Castilla-La Mancha, Paseo de Moledores s/n, 13071 Ciudad Real, Spain;
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Oliveira MX, Canafístula FVC, Ferreira CRN, Fernandes LVO, de Araújo AR, Ribeiro FOS, Souza JMT, Lima IC, Assreuy AMS, Silva DA, Filho JDBM, Araújo AJ, Maciel JS, Feitosa JPA. Hydrogels dressings based on guar gum and chitosan: Inherent action against resistant bacteria and fast wound closure. Int J Biol Macromol 2023; 253:127281. [PMID: 37806422 DOI: 10.1016/j.ijbiomac.2023.127281] [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: 06/09/2023] [Revised: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Abstract
Hydrogels made with depolymerized guar gum, oxidized with theoretical oxidation degrees of 20, 35 and 50 %, were obtained via Schiff's base reaction with N-succinyl chitosan. The materials obtained were subjected to characterization by FT-IR, rheology, swelling, degradation, and morphology. Additionally, their gelation time categorized all three hydrogels as injectable. The materials' swelling degrees in Phosphate-Buffered Saline (PBS) were in the range of 26-35 g of fluid/g gel and their pore size distribution was heterogeneous, with pores varying from 67 to 93 μm. All hydrogels degraded in PBS solution, but maintained around 40 % of their initial mass after 28 days, which was more than enough time for wound healing. The biomaterials were also flexible, self-repairing, adhesive and cytocompatible and presented intrinsic actions, regardless of the presence of additives or antibiotics, against gram-positive (Staphylococcus aureus, Staphylococcus epidermidis) and gram-negative bacteria (Escherichia coli). However, the most pronounced bactericidal effect was against resistant Staphylococcus aureus - MRSA. In vivo assays, performed with 50 % oxidized gum gel, demonstrated that this material exerted anti-inflammatory effects, accelerating the healing process and restoring tissues by approximately 99 % within 14 days. In conclusion, these hydrogels have unique characteristics, making them excellent candidates for wound-healing dressings.
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Affiliation(s)
- Matheus X Oliveira
- Department of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, UFC, Fortaleza, CE, Brazil
| | | | - Carlos Rhamon N Ferreira
- Department of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, UFC, Fortaleza, CE, Brazil
| | - Ludmila Virna O Fernandes
- Department of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, UFC, Fortaleza, CE, Brazil
| | - Alyne R de Araújo
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Fábio Oliveira S Ribeiro
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Jessica Maria T Souza
- Cell Culture Laboratory of the Delta, LCCDelta, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Iásly C Lima
- Superior Institute of Biomedical Sciences, State University of Ceará, UECE, Fortaleza, CE, Brazil
| | - Ana Maria S Assreuy
- Superior Institute of Biomedical Sciences, State University of Ceará, UECE, Fortaleza, CE, Brazil
| | - Durcilene A Silva
- Research Center on Biodiversity and Biotechnology, BIOTEC, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - José Delano Barreto M Filho
- Cell Culture Laboratory of the Delta, LCCDelta, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Ana Jérsia Araújo
- Cell Culture Laboratory of the Delta, LCCDelta, Parnaiba Delta Federal University, UFDPar, Parnaíba, PI, Brazil
| | - Jeanny S Maciel
- Department of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, UFC, Fortaleza, CE, Brazil
| | - Judith Pessoa A Feitosa
- Department of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, UFC, Fortaleza, CE, Brazil.
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Isopencu GO, Covaliu-Mierlă CI, Deleanu IM. From Plants to Wound Dressing and Transdermal Delivery of Bioactive Compounds. PLANTS (BASEL, SWITZERLAND) 2023; 12:2661. [PMID: 37514275 PMCID: PMC10386126 DOI: 10.3390/plants12142661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/10/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023]
Abstract
Transdermal delivery devices and wound dressing materials are constantly improved and upgraded with the aim of enhancing their beneficial effects, biocompatibility, biodegradability, and cost effectiveness. Therefore, researchers in the field have shown an increasing interest in using natural compounds as constituents for such systems. Plants, as an important source of so-called "natural products" with an enormous variety and structural diversity that still exceeds the capacity of present-day sciences to define or even discover them, have been part of medicine since ancient times. However, their benefits are just at the beginning of being fully exploited in modern dermal and transdermal delivery systems. Thus, plant-based primary compounds, with or without biological activity, contained in gums and mucilages, traditionally used as gelling and texturing agents in the food industry, are now being explored as valuable and cost-effective natural components in the biomedical field. Their biodegradability, biocompatibility, and non-toxicity compensate for local availability and compositional variations. Also, secondary metabolites, classified based on their chemical structure, are being intensively investigated for their wide pharmacological and toxicological effects. Their impact on medicine is highlighted in detail through the most recent reported studies. Innovative isolation and purification techniques, new drug delivery devices and systems, and advanced evaluation procedures are presented.
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Affiliation(s)
- Gabriela Olimpia Isopencu
- Department of Chemical and Biochemical Engineering, University Politehnica of Bucharest, Polizu Str. 1-7, 011061 Bucharest, Romania
| | - Cristina-Ileana Covaliu-Mierlă
- Department of Biotechnical Systems, Faculty of Biotechnical Systems Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Iuliana-Mihaela Deleanu
- Department of Chemical and Biochemical Engineering, University Politehnica of Bucharest, Polizu Str. 1-7, 011061 Bucharest, Romania
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Chelu M, Musuc AM, Popa M, Calderon Moreno J. Aloe vera-Based Hydrogels for Wound Healing: Properties and Therapeutic Effects. Gels 2023; 9:539. [PMID: 37504418 PMCID: PMC10379830 DOI: 10.3390/gels9070539] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 06/26/2023] [Accepted: 06/30/2023] [Indexed: 07/29/2023] Open
Abstract
Aloe vera-based hydrogels have emerged as promising platforms for the delivery of therapeutic agents in wound dressings due to their biocompatibility and unique wound-healing properties. The present study provides a comprehensive overview of recent advances in the application of Aloe vera-based hydrogels for wound healing. The synthesis methods, structural characteristics, and properties of Aloe vera-based hydrogels are discussed. Mechanisms of therapeutic agents released from Aloe vera-based hydrogels, including diffusion, swelling, and degradation, are also analyzed. In addition, the therapeutic effects of Aloe vera-based hydrogels on wound healing, as well as the reduction of inflammation, antimicrobial activity, and tissue regeneration, are highlighted. The incorporation of various therapeutic agents, such as antimicrobial and anti-inflammatory ones, into Aloe vera-based hydrogels is reviewed in detail. Furthermore, challenges and future prospects of Aloe vera-based hydrogels for wound dressing applications are considered. This review provides valuable information on the current status of Aloe vera-based hydrogels for the delivery of therapeutic agents in wound dressings and highlights their potential to improve wound healing outcomes.
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Affiliation(s)
| | - Adina Magdalena Musuc
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania; (M.C.); (M.P.)
| | | | - Jose Calderon Moreno
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania; (M.C.); (M.P.)
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Shan F, Shen S, Wang X, Chen G. BST2 regulated by the transcription factor STAT1 can promote metastasis, invasion and proliferation of oral squamous cell carcinoma via the AKT/ERK1/2 signaling pathway. Int J Oncol 2023; 62:54. [PMID: 36929425 PMCID: PMC10019759 DOI: 10.3892/ijo.2023.5502] [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: 11/01/2022] [Accepted: 02/22/2023] [Indexed: 03/15/2023] Open
Abstract
Oral squamous cell carcinoma (OSCC) is one of the main types of head and neck squamous cell carcinoma. Although progress has been made in treating OSCC, it remains a threat to human health, and novel therapeutic strategies are needed to extend the lifespan of patients with OSCC. The present study, evaluated whether bone marrow stromal antigen 2 (BST2) and STAT1 were potential therapeutic targets in OSCC. Small interfering RNA (siRNA) or overexpression plasmids were used to regulate BST2 or STAT1 expression. Western blotting and reverse transcription‑quantitative PCR were performed to assess changes in the protein and mRNA expression levels of signaling pathway components. The effects of BST2 and STAT1 expression changes on the migration, invasion and proliferation of OSCC cells were assessed using the scratch test assay, Transwell assay and colony formation assay in vitro, respectively. Cell‑derived xenograft models were used to evaluate the impact of BST2 and STAT1 on the occurrence and development of OSCC in vivo. Finally, it was demonstrated that BST2 expression was significantly upregulated in OSCC. Furthermore, it was demonstrated that high expression of BST2 in OSCC contributed to the metastasis, invasion and proliferation of OSCC cells. Moreover, it was demonstrated that the promoter region of BST2 was regulated by the transcription factor STAT1, and that the STAT1/BST2 axis could affect the behavior of OSCC via the AKT/ERK1/2 signaling pathway. In vivo studies also demonstrated that STAT1 downregulation inhibited OSCC growth by down‑regulating BST2 expression via the AKT/ERK1/2 signaling pathway.
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Affiliation(s)
- Fayu Shan
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Si Shen
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Xinxing Wang
- Environmental Medicine Laboratory, Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, P.R. China
- Correspondence to: Dr Xinxing Wang, Environmental Medicine Laboratory, Tianjin Institute of Environmental and Operational Medicine, 1 Dali Road, Heping, Tianjin 300050, P.R. China, E-mail:
| | - Gang Chen
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, P.R. China
- Dr Gang Chen, Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Tianjin Medical University, 12 Qi Xinang Tai Road, Heping, Tianjin 300070, P.R. China, E-mail:
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