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Yin Y, Shuai F, Liu X, Zhao Y, Han X, Zhao H. Biomaterials and therapeutic strategies designed for tooth extraction socket healing. Biomaterials 2025; 316:122975. [PMID: 39626339 DOI: 10.1016/j.biomaterials.2024.122975] [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: 08/23/2024] [Revised: 11/16/2024] [Accepted: 11/28/2024] [Indexed: 12/31/2024]
Abstract
Tooth extraction is the most commonly performed oral surgical procedure, with a wide range of clinical indications. The oral cavity is a complex microenvironment, influenced by oral movements, salivary flow, and bacterial biofilms. These factors can contribute to delayed socket healing and the onset of post-extraction complications, which can burden patients' esthetic and functional rehabilitation. Achieving effective extraction socket healing requires a multidisciplinary approach. Recent advancements in materials science and bioengineering have paved the way for developing novel strategies. This review outlines the fundamental healing processes and cellular-molecular interactions involved in the healing of extraction sockets. It then delves into the current landscape of biomaterials for socket healing, highlighting emerging strategies and potential targets that could transform the treatment paradigm. Building upon this foundation, this review also presents future directions and identifies challenges associated with the clinical application of biomaterials for extraction socket healing.
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Affiliation(s)
- Yijia Yin
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Fangyuan Shuai
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Xian Liu
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Yuxi Zhao
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Xianglong Han
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, PR China.
| | - Hang Zhao
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, PR China.
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2
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Callejas BE, Sousa JA, Flannigan KL, Wang A, Higgins E, Herik AI, Li S, Rajeev S, Rosentreter R, Panaccione R, McKay DM. Calcitonin gene-related peptide promotes epithelial reparative and anticolitic functions of IL-4 educated human macrophages. Am J Physiol Gastrointest Liver Physiol 2025; 328:G1-G16. [PMID: 39378308 DOI: 10.1152/ajpgi.00159.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 09/30/2024] [Accepted: 10/04/2024] [Indexed: 10/10/2024]
Abstract
Interleukin-4 activated human macrophages [M(IL4)s] promote epithelial wound healing and exert an anticolitic effect in a murine model. Blood monocyte-derived M(IL4)s from healthy donors and individuals with Crohn's disease had increased mRNA expression of the calcitonin gene-related peptide (CGRP) receptor chain, receptor activity modifying protein-1 (RAMP1), raising the issue of neural modulation of the M(IL4)s reparative function. Thus, human M(IL4)s were treated with CGRP and the cells' phagocytotic, epithelial wound repair and anticolitic functions were assessed. Initial studies confirmed upregulation of expression of the CGRP receptor, which was localized to the cell surface and was functional as determined by CGRP-evoked increases in cAMP. M(IL4,CGRP)s had increased mannose receptor (CD206) and FcγRIIa (CD32a) mRNA expression, a subtle, but significant, increase in phagocytosis and decreased chemokine production following the exposure to Escherichia coli. When delivered systemically (106 cells IP) to oxazolone-treated rag1-/- mice, M(IL4,CGRP) had an anticolitic effect superior to M(IL4)s from the same blood donor. Conditioned medium (CM) from M(IL4,CGRP) had increased amounts of transforming growth factor (TGF)-β and increased wound-healing capacity compared with matched M(IL4)-CM in the human CaCo2 epithelial cell line in-vitro wounding assay. Moreover, M(IL4,CGRP)s displayed increased cyclooxygenase (COX)-1 and prostaglandin D2 (PGD2), and CM from M(IL4,CGRP)s treated with indomethacin or SC-560 to inhibit COX-1 activity failed to promote repair of wounded CaCo2 cell monolayers. These data confirm the human M(IL4)s' anticolitic effect that was enhanced by CGRP and may be partially dependent on macrophage COX-1/PGD2 activity. Thus, input from neurone-derived molecules is a local modifier capable of boosting the anticolitic effect of autologous M(IL4) transfer.NEW & NOTEWORTHY A novel pathway is identified whereby interleukin-4-educated human macrophages [M(IL4)s] exposed to calcitonin gene-related peptide (CGRP) reduce oxazolone-induced colitis and promote epithelial wound healing in vitro through COX1-dependent signaling. Support is provided for the concept of macrophage transfer to treat enteric inflammation where neuroimmune interaction, in this case CGRP neuropeptide, produced under inflammatory conditions will reinforce the anticolitic and wound repair capacity of M(IL4) autologous-based therapy for IBD treatment.
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Affiliation(s)
- Blanca E Callejas
- Gastrointestinal Research Group, Inflammation Research Network and Host-Parasite Interactions Group, Department of Physiology and Pharmacology, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - James A Sousa
- Gastrointestinal Research Group, Inflammation Research Network and Host-Parasite Interactions Group, Department of Physiology and Pharmacology, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kyle L Flannigan
- Gastrointestinal Research Group, Inflammation Research Network and Host-Parasite Interactions Group, Department of Physiology and Pharmacology, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Arthur Wang
- Gastrointestinal Research Group, Inflammation Research Network and Host-Parasite Interactions Group, Department of Physiology and Pharmacology, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Eve Higgins
- Gastrointestinal Research Group, Inflammation Research Network and Host-Parasite Interactions Group, Department of Physiology and Pharmacology, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Aydin I Herik
- Gastrointestinal Research Group, Inflammation Research Network and Host-Parasite Interactions Group, Department of Physiology and Pharmacology, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Shuhua Li
- Gastrointestinal Research Group, Inflammation Research Network and Host-Parasite Interactions Group, Department of Physiology and Pharmacology, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Sruthi Rajeev
- Gastrointestinal Research Group, Inflammation Research Network and Host-Parasite Interactions Group, Department of Physiology and Pharmacology, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Ryan Rosentreter
- Division of Gastroenterology and Hepatology, Gastrointestinal Research Group, Department of Medicine, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Remo Panaccione
- Division of Gastroenterology and Hepatology, Gastrointestinal Research Group, Department of Medicine, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Derek M McKay
- Gastrointestinal Research Group, Inflammation Research Network and Host-Parasite Interactions Group, Department of Physiology and Pharmacology, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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3
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Badie MA, Teaima MH, El-Nabarawi MA, Badawi NM. Formulation and optimization of surfactant-modified chitosan nanoparticles loaded with cefdinir for novel topical drug delivery: Elevating wound healing efficacy with enhanced antibacterial properties. Int J Pharm 2024; 666:124763. [PMID: 39332464 DOI: 10.1016/j.ijpharm.2024.124763] [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: 05/21/2024] [Revised: 09/23/2024] [Accepted: 09/24/2024] [Indexed: 09/29/2024]
Abstract
Burn wounds remain a significant global health concern, frequently exacerbated by bacterial infections that hinder healing and raise morbidity rates. Cefdinir, a third-generation cephalosporin antibiotic, is used to treat various conditions, but it has limitations such as low water solubility, limited bioavailability, and a short biological half-life. This study aimed to fabricate and optimize novel surfactant-based Cefdinir-loaded chitosan nanoparticles (CFD-CSNPs) for enhancing topical CFD delivery and efficacy in burn healing. Box-Behnken Design (BBD) was employed to develop optimized CFD-CSNPs using Design Expert® software, where the independent factors were chitosan concentration, chitosan: sodium tripolyphosphate ratio, pH, and surfactant type. Particle size PS, zeta potential ZP, Polydispersity index PDI, and entrapment efficiency EE% were evaluated as dependent factors. CFD-CSNPs were produced using the ionic gelation method. The optimized formula was determined and then examined for further in vitro and in vivo assessments. The optimized CFD-CSNPs exhibited acceptable PS, PDI, and ZP values. The EE% of CFD from CSNPs reached 57.89 % ± 1.66. TEM analysis revealed spherical morphology. In vitro release studies demonstrated a biphasic release profile up to (75.5 % ± 3.8) over 48 hrs. The optimized CFD-CSNPs showed improved antimicrobial efficacy against the tested microorganisms, exhibiting superior performance for both biofilm prevention and eradication. Enhanced wound healing activity was achieved by the optimized CFD-CSNPs in both in vitro and in vivo studies as confirmed by scratch wound assay and skin burn mice model. The current study advocates the efficacy of the innovative topical application of CFD-CSNPs for wound healing purposes and treatment of wound infections.
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Affiliation(s)
- Merna A Badie
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo, Egypt
| | - Mahmoud H Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Mohamed A El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Noha M Badawi
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo, Egypt.
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Giannasi C, Cadelano F, Della Morte E, Baserga C, Mazzucato C, Niada S, Baj A. Unlocking the Therapeutic Potential of Adipose-Derived Stem Cell Secretome in Oral and Maxillofacial Medicine: A Composition-Based Perspective. BIOLOGY 2024; 13:1016. [PMCID: PMC11673083 DOI: 10.3390/biology13121016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2024] [Revised: 11/27/2024] [Accepted: 12/03/2024] [Indexed: 01/03/2025]
Abstract
The secretome of adipose-derived stem cells (ADSCs) holds significant promise for oral and maxillofacial medicine due to its rich composition of growth factors, cytokines, and other soluble or vesicle-embedded bioactive mediators that promote tissue regeneration and immunomodulation. Potential applications include enhancing wound healing, reducing inflammation, and stimulating the regeneration of hard and soft tissues. This could lead to improved outcomes in procedures such as bone grafting, soft tissue reconstruction, and the treatment of oral and facial defects. By harnessing the regenerative properties of ADSC secretome, clinicians may be able to achieve more effective tissue repair, ultimately benefiting patient recovery and quality of life. The adipose-derived stem cell (ADSC) secretome is widely studied for its immunomodulatory and regenerative properties, yet its potential in maxillofacial medicine remains largely underexplored. This review takes a composition-driven approach, beginning with a list of chemokines, cytokines, receptors, and inflammatory and growth factors quantified in the ADSC secretome to infer its potential applications in this medical field. First, a review of the literature confirmed the presence of 107 bioactive factors in the secretome of ADSCs or other types of mesenchymal stem cells. This list was then analyzed using the Search Tool for Retrieval of Interacting Genes/Proteins (STRING) software, revealing 844 enriched biological processes. From these, key processes were categorized into three major clinical application areas: immunoregulation (73 factors), bone regeneration (13 factors), and wound healing and soft tissue regeneration (27 factors), with several factors relevant to more than one area. The most relevant molecules were discussed in the context of existing literature to explore their therapeutic potential based on available evidence. Among these, TGFB1, IL10, and CSF2 have been shown to modulate immune and inflammatory responses, while OPG, IL6, HGF, and TIMP1 contribute to bone regeneration and tissue repair. Although the ADSC secretome holds great promise in oral and maxillofacial medicine, further research is needed to optimize its application and validate its clinical efficacy.
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Affiliation(s)
- Chiara Giannasi
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20100 Milan, Italy; (F.C.); (A.B.)
- IRCCS Istituto Ortopedico Galeazzi, 20157 Milan, Italy; (E.D.M.); (C.B.); (C.M.)
| | - Francesca Cadelano
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20100 Milan, Italy; (F.C.); (A.B.)
- IRCCS Istituto Ortopedico Galeazzi, 20157 Milan, Italy; (E.D.M.); (C.B.); (C.M.)
| | - Elena Della Morte
- IRCCS Istituto Ortopedico Galeazzi, 20157 Milan, Italy; (E.D.M.); (C.B.); (C.M.)
| | - Camilla Baserga
- IRCCS Istituto Ortopedico Galeazzi, 20157 Milan, Italy; (E.D.M.); (C.B.); (C.M.)
| | - Camilla Mazzucato
- IRCCS Istituto Ortopedico Galeazzi, 20157 Milan, Italy; (E.D.M.); (C.B.); (C.M.)
| | - Stefania Niada
- IRCCS Istituto Ortopedico Galeazzi, 20157 Milan, Italy; (E.D.M.); (C.B.); (C.M.)
| | - Alessandro Baj
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20100 Milan, Italy; (F.C.); (A.B.)
- IRCCS Istituto Ortopedico Galeazzi, 20157 Milan, Italy; (E.D.M.); (C.B.); (C.M.)
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More S, Mallick S, P SS, Bose B. Pax6 expressing neuroectodermal and ocular stem cells: Its role from a developmental biology perspective. Cell Biol Int 2024; 48:1802-1815. [PMID: 39308152 DOI: 10.1002/cbin.12246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 07/29/2024] [Accepted: 08/16/2024] [Indexed: 11/15/2024]
Abstract
Pax-6 emerges as a critical transcription factor that guides the fate of stem cells towards neural lineages. Its expression influences the differentiation of neural progenitors into diverse neuronal subtypes, glial cells, and other neural cell types. Pax-6 operates with other regulatory factors to ensure the precise patterning and organization of the developing nervous system. The intricate interplay between Pax-6 and other signaling pathways, transcription factors, and epigenetic modifiers underpins the complicated balance between stem cell maintenance, proliferation, and differentiation in neuroectodermal and ocular contexts. Dysfunction of Pax-6 can lead to a spectrum of developmental anomalies, underscoring its importance in these processes. This review highlights the essential role of Pax-6 expression in neuroectodermal and ocular stem cells, shedding light on its significance in orchestrating the intricate journey from stem cell fate determination to the emergence of diverse neural and ocular cell types. The comprehensive understanding of Pax-6 function gained from a developmental biology perspective offers valuable insights into normal development and potential therapeutic avenues for neuroectodermal and ocular disorders.
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Affiliation(s)
- Shubhangi More
- Stem Cells and Regenerative Medicine Centre, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
| | - Sumit Mallick
- Stem Cells and Regenerative Medicine Centre, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
| | - Sudheer Shenoy P
- Stem Cells and Regenerative Medicine Centre, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
| | - Bipasha Bose
- Stem Cells and Regenerative Medicine Centre, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
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Wu Y, Gong Y, Ma Y, Zhao Q, Fu R, Zhang X, Li Y, Zhi X. Effects of vitamin D status on cutaneous wound healing through modulation of EMT and ECM. J Nutr Biochem 2024; 134:109733. [PMID: 39127309 DOI: 10.1016/j.jnutbio.2024.109733] [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: 11/17/2023] [Revised: 07/07/2024] [Accepted: 08/04/2024] [Indexed: 08/12/2024]
Abstract
To investigate the effects of vitamin D status on cutaneous wound healing, C57BL/6J mice were fed diets with different vitamin D levels or injected intraperitoneally with 1α,25(OH)2D3. Dorsal skin wounds were created and wound edge tissues were collected on days 4, 7, 11, and 14 postwounding. The proliferation and migration of HaCaT cells treated with shVDR or 1α,25(OH)2D3 were assessed. Vitamin D deficiency (VDD) decreased wound closure and might delay inflammatory response, shown by slower inflammatory cell infiltration, decreased IL6 and TNF expression in early phase followed by an increase later. VDD might postpone epithelial-mesenchymal transition (EMT), initially characterized by higher epithelial markers and lower mesenchymal markers, followed by opposite appearance later. Dietary vitamin D supplementation and 1α,25(OH)2D3 intervention tended to accelerate EMT. Regarding extracellular matrix (ECM), VDD appeared to reduce collagen deposition on day 4 and downregulated fibronectin, COL3A1, and MMP9 expression early, followed by an increase later, together with an initial increase and subsequent decrease in Timp1 mRNA expression. Dietary vitamin D intervention promoted fibronectin and MMP9 expression on day 4 and then downregulated their expression on day 14. TGFb1/SMAD2/3 signaling seemed to be downregulated by VDD and upregulated by 1α,25(OH)2D3. In vitro, partial inhibition of VDR by shVDR tended to inhibit HaCaT cell proliferation and migration, EMT, and TGFb1/SMAD2/3 signaling, whereas 1α,25(OH)2D3 appeared to generate opposite effects. In conclusion, VDD hindered cutaneous wound healing, potentially due to impaired inflammatory response, delayed EMT, decreased ECM, and inhibited TGFb1/SMAD2/3 pathway. Vitamin D and 1α,25(OH)2D3 tended to enhance EMT and ECM.
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Affiliation(s)
- Ying Wu
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Yiting Gong
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Yiming Ma
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Qiaofan Zhao
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Ruyu Fu
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Xiaoming Zhang
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Ye Li
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Xueyuan Zhi
- Department of Occupational and Environmental Health, School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China; Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China.
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Smith J, Rai V. Platelet-Rich Plasma in Diabetic Foot Ulcer Healing: Contemplating the Facts. Int J Mol Sci 2024; 25:12864. [PMID: 39684575 DOI: 10.3390/ijms252312864] [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: 10/09/2024] [Revised: 11/20/2024] [Accepted: 11/27/2024] [Indexed: 12/18/2024] Open
Abstract
Diabetic foot ulcers (DFUs), debilitating complication of diabetes, often lead to amputation even in the presence of current advanced treatment for DFUs. Platelet-rich plasma (PRP) containing growth factors and other proteins has been suggested as a potent therapeutic in promoting DFU healing. PRP is safe and effective in improving the DFU healing rate, decreasing healing time, and making chronic wounds viable for treatment. Though PRP is safe and effective in promoting DFU healing, there are inconsistencies in clinical outcomes. These varying results may be due to various concentrations of PRP being used. Most studies report dosage and timing, but none have reported the concentration of various factors. This is important, as the concentration of factors in PRP can vary significantly with each preparation and may directly impact the healing outcome. This critical review discusses the limiting factors and issues related to PRP therapy and future directives. A systematic search of PubMed and Google Scholar was performed with keywords including diabetic foot ulcer, ulcer healing, platelet-rich plasma, DFU treatment, and PRP limitations and efficacy, alone or in combination, to search the related articles. The articles describing DFU and the use of PRP in DFU healing were included. The existing literature suggests that PRP is effective and safe for promoting DFU healing, but larger clinical trials are needed to improve clinical outcomes. There is a need to consider multiple factors including the role of epigenetics, lifestyle modification, and the percentage composition of each constituent in PRP.
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Affiliation(s)
- Jacob Smith
- Department of Translational Research, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Vikrant Rai
- Department of Translational Research, Western University of Health Sciences, Pomona, CA 91766, USA
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Patil TV, Jin H, Dutta SD, Aacharya R, Chen K, Ganguly K, Randhawa A, Lim KT. Zn@TA assisted dual cross-linked 3D printable glycol grafted chitosan hydrogels for robust antibiofilm and wound healing. Carbohydr Polym 2024; 344:122522. [PMID: 39218566 DOI: 10.1016/j.carbpol.2024.122522] [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: 03/25/2024] [Revised: 07/11/2024] [Accepted: 07/17/2024] [Indexed: 09/04/2024]
Abstract
Rapid regeneration of the injured tissue or organs is necessary to achieve the usual functionalities of the damaged parts. However, bacterial infections delay the regeneration process, a severe challenge in the personalized healthcare sector. To overcome these challenges, 3D-printable multifunctional hydrogels of Zn/tannic acid-reinforced glycol functionalized chitosan for rapid wound healing were developed. Polyphenol strengthened intermolecular connections, while glutaraldehyde stabilized 3D-printed structures. The hydrogel exhibited enhanced viscoelasticity (G'; 1.96 × 104 Pa) and adhesiveness (210 kPa). The dual-crosslinked scaffolds showed remarkable antibacterial activity against Bacillus subtilis (∼81 %) and Escherichia coli (92.75 %). The hydrogels showed no adverse effects on human dermal fibroblasts (HDFs) and macrophages (RAW 264.7), indicating their superior biocompatibility. The Zn/TA-reinforced hydrogels accelerate M2 polarization of macrophages through the activation of anti-inflammatory transcription factors (Arg-1, VEGF, CD163, and IL-10), suggesting better immunomodulatory effects, which is favorable for rapid wound regeneration. Higher collagen deposition and rapid re-epithelialization occurred in scaffold-treated rat groups vis-à-vis controls, demonstrating superior wound healing. Taken together, the developed multifunctional hydrogels have great potential for rapidly regenerating bacteria-infected wounds in the personalized healthcare sector.
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Affiliation(s)
- Tejal V Patil
- Department of Biosystems Engineering, Kangwon National University, Chuncheon-24341, Republic of Korea; Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon-24341, Republic of Korea
| | - Hexiu Jin
- Department of Plastic and Traumatic Surgery, Capital Medical University, Beijing-10096, China
| | - Sayan Deb Dutta
- Department of Biosystems Engineering, Kangwon National University, Chuncheon-24341, Republic of Korea; Center for Surgical Bioengineering, Department of Surgery, School of Medicine, University of California Davis, Sacramento, California-95817, United States
| | - Rumi Aacharya
- Department of Biosystems Engineering, Kangwon National University, Chuncheon-24341, Republic of Korea; Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon-24341, Republic of Korea
| | - Kehan Chen
- Department of Plastic and Traumatic Surgery, Capital Medical University, Beijing-10096, China
| | - Keya Ganguly
- Department of Biosystems Engineering, Kangwon National University, Chuncheon-24341, Republic of Korea; Institute of Forest Science, Kangwon National University, Chuncheon-24341, Republic of Korea
| | - Aayushi Randhawa
- Department of Biosystems Engineering, Kangwon National University, Chuncheon-24341, Republic of Korea; Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon-24341, Republic of Korea
| | - Ki-Taek Lim
- Department of Biosystems Engineering, Kangwon National University, Chuncheon-24341, Republic of Korea; Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon-24341, Republic of Korea; Institute of Forest Science, Kangwon National University, Chuncheon-24341, Republic of Korea.
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9
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Abedanzadeh M, Abolmaali SS, Heidari R, Aalaei E, Kaviani M, Dara M, Mohammadi S, Azarpira N, Tamaddon AM. Photo-crosslinked hyaluronic acid hydrogels designed for simultaneous delivery of mesenchymal stem cells and tannic acid: Advancing towards scarless wound healing. Int J Biol Macromol 2024; 281:136394. [PMID: 39406324 DOI: 10.1016/j.ijbiomac.2024.136394] [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: 06/11/2024] [Revised: 09/26/2024] [Accepted: 10/05/2024] [Indexed: 10/25/2024]
Abstract
The quest for scarless wound healing is imperative in healthcare, aiming to diminish the challenges of conventional wound treatment. Hyaluronic acid (HA), a key component of the skin's extracellular matrix, plays a pivotal role in wound healing and skin rejuvenation. Leveraging the advantages of HA hydrogels, this research focuses first on tuning the physicochemical and mechanical properties of photo-crosslinkable methacrylated HA (MAHA) by varying the methacrylation degree, polymer concentration, photo-crosslinker concentration, and UV exposure time. The optimized hydrogel, featuring suitable porosity, swelling ratio, degradability, and mechanical properties, was then used for the combined delivery of tannic acid (TA), known for its hemostatic, antibacterial, and antioxidant properties, and Wharton's jelly-derived mesenchymal stem cells (WJ-MSCs) cultured on the MAHA-TA hydrogel to enhance skin regeneration. The composite MAHA-TA-MSC hydrogel demonstrated favorable pores and biocompatibility, evidenced by cell viability, and promoted cell proliferation. When applied to dorsal wounds in rats, this composite hydrogel accelerated wound healing and reduced scarring. Additionally, molecular and histopathological analyses revealed increased expression of IL-10, the TGF-β3/TGF-β1 ratio, and the Collagen III/Collagen I ratio. These findings suggest that the MAHA-TA-MSC hydrogel is a promising candidate for scarless acute wound healing.
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Affiliation(s)
- Mozhgan Abedanzadeh
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Samira Sadat Abolmaali
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran; Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Reza Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Ehsan Aalaei
- Department of Mechanical Engineering, University of Washington, Seattle, WA, USA.
| | - Maryam Kaviani
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahintaj Dara
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Samaneh Mohammadi
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Mohammad Tamaddon
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran; Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, Iran; Pharmaceutics Departments, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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10
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Jones S, VandenHeuvel S, Luengo Martinez A, Birur R, Burgeson E, Gilbert I, Baker A, Wolf M, Raghavan SA, Rogers S, Cosgriff-Hernandez E. Suspension electrospinning of decellularized extracellular matrix: A new method to preserve bioactivity. Bioact Mater 2024; 41:640-656. [PMID: 39280898 PMCID: PMC11401211 DOI: 10.1016/j.bioactmat.2024.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 08/12/2024] [Accepted: 08/14/2024] [Indexed: 09/18/2024] Open
Abstract
Decellularized extracellular matrices (dECM) have strong regenerative potential as tissue engineering scaffolds; however, current clinical options for dECM scaffolds are limited to freeze-drying its native form into sheets. Electrospinning is a versatile scaffold fabrication technique that allows control of macro- and microarchitecture. It remains challenging to electrospin dECM, which has led researchers to either blend it with synthetic materials or use enzymatic digestion to fully solubilize the dECM. Both strategies reduce the innate bioactivity of dECM and limit its regenerative potential. Herein, we developed a new suspension electrospinning method to fabricate a pure dECM fibrous mesh that retains its innate bioactivity. Systematic investigation of suspension parameters was used to identify critical rheological properties required to instill "spinnability," including homogenization, concentration, and particle size. Homogenization enhanced particle interaction to impart the requisite elastic behavior to withstand electrostatic drawing without breaking. A direct correlation between concentration and viscosity was observed that altered fiber morphology; whereas, particle size had minimal impact on suspension properties and fiber morphology. The versatility of this new method was demonstrated by electrospinning dECM with three common decellularization techniques (Abraham, Badylak, Luo) and tissue sources (intestinal submucosa, heart, skin). Bioactivity retention after electrospinning was confirmed using cell proliferation, angiogenesis, and macrophage polarization assays. Collectively, these findings provide a framework for researchers to electrospin dECM for diverse tissue engineering applications.
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Affiliation(s)
- Sarah Jones
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Sabrina VandenHeuvel
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Andres Luengo Martinez
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Ruchi Birur
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Eric Burgeson
- Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign, Champaign, IL, 61820, USA
| | - Isabelle Gilbert
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Aaron Baker
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Matthew Wolf
- Cancer Biomaterials Engineering Section, Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA
| | - Shreya A Raghavan
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Simon Rogers
- Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign, Champaign, IL, 61820, USA
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11
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Frison SS, Borges EL, Guedes ACM, Honorato-Sampaio K. Biofilm and Its Characteristics in Venous Ulcers. J Wound Ostomy Continence Nurs 2024; 51:445-453. [PMID: 39588812 DOI: 10.1097/won.0000000000001123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2024]
Abstract
PURPOSE The aim of the study was to analyze the characteristics of the biofilm of venous ulcers in terms of location and formation and to relate the presence of the biofilm to ulcer characteristics including duration, injured area, and necrotic tissue. DESIGN Descriptive clinical study. MATERIALS AND METHODS We obtained 2 biopsy fragments (tissue samples) from 44 patients with venous ulcers treated at a public outpatient clinic in a university hospital in Belo Horizonte, Brazil. Ulcers were photographed and classified according to the duration. In addition, the wound size and proportion of wound surface covered by necrotic tissue were measured. One fragment from each ulcer underwent microbiological analysis, while the other was analyzed using transmission electron microscopy. Data analysis was limited to fragments from patients with bacteria in the microbiological analysis. RESULTS Data analysis is based on samples obtained from 21 ulcers in 21 patients who had bacteria in their ulcer based on microbiologic analysis of a tissue sample. Most ulcers were open for 2 to 10 years, 57% (n = 12) were 16 cm2 or smaller, and the proportion of the wound bed covered by necrotic tissue coverage varied widely. Of the 21/44 patients (48%) with bacteria in their ulcers, only 3 patients had bacterial biofilm present in the transmission electron microscopy, corresponding to 7% of the 44 patients. Pseudomonas aeruginosa was the most frequent bacterium, identified in 10 fragments. The biofilm was not present on the surface but in a layer slightly below it. The detection of biofilms was not directly related to the duration of the ulcer. It was not possible to establish a correlation between the size of the lesion and the presence of these microorganisms due to the small sample size. CONCLUSIONS Our findings indicate that detecting biofilm in venous ulcers is challenging, as it does not uniformly occur throughout the wound bed, can occur at different depths, and is often not present on the wound surface. There is a need to develop studies that can contribute to the detection of biofilm in clinical practice.
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Affiliation(s)
- Susiane Sucasas Frison
- Susiane Sucasas Frison, MSc, Department of Basic Nursing, Escola de Enfermagem da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Eline Lima Borges, PhD, Department of Basic Nursing, Escola de Enfermagem da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Antônio Carlos Martins Guedes, PhD, MD, Department of Internal Medicine, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Kinulpe Honorato-Sampaio, PhD, Faculdade de Medicina da Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil
| | - Eline Lima Borges
- Susiane Sucasas Frison, MSc, Department of Basic Nursing, Escola de Enfermagem da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Eline Lima Borges, PhD, Department of Basic Nursing, Escola de Enfermagem da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Antônio Carlos Martins Guedes, PhD, MD, Department of Internal Medicine, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Kinulpe Honorato-Sampaio, PhD, Faculdade de Medicina da Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil
| | - Antônio Carlos Martins Guedes
- Susiane Sucasas Frison, MSc, Department of Basic Nursing, Escola de Enfermagem da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Eline Lima Borges, PhD, Department of Basic Nursing, Escola de Enfermagem da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Antônio Carlos Martins Guedes, PhD, MD, Department of Internal Medicine, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Kinulpe Honorato-Sampaio, PhD, Faculdade de Medicina da Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil
| | - Kinulpe Honorato-Sampaio
- Susiane Sucasas Frison, MSc, Department of Basic Nursing, Escola de Enfermagem da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Eline Lima Borges, PhD, Department of Basic Nursing, Escola de Enfermagem da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Antônio Carlos Martins Guedes, PhD, MD, Department of Internal Medicine, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Kinulpe Honorato-Sampaio, PhD, Faculdade de Medicina da Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Minas Gerais, Brazil
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12
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Raška F, Lipový B, Kobzová Š, Vacek L, Jarošová R, Kleknerová D, Matiašková K, Makovický P, Vícenová M, Jeklová E, Pantůček R, Faldyna M, Janda L. Development of a porcine model of skin and soft-tissue infection caused by Staphylococcus aureus, including methicillin-resistant strains suitable for testing topical antimicrobial agents. Animal Model Exp Med 2024. [PMID: 39482270 DOI: 10.1002/ame2.12495] [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: 04/09/2024] [Accepted: 08/07/2024] [Indexed: 11/03/2024] Open
Abstract
BACKGROUND In view of the ever-increasing representation of Staphylococcus spp. strains resistant to various antibiotics, the development of in vivo models for evaluation of novel antimicrobials is of utmost importance. METHODS In this article, we describe the development of a fully immunocompetent porcine model of extensive skin and soft tissue damage suitable for testing topical antimicrobial agents that matches the real clinical situation. The model was developed in three consecutive stages with protocols for each stage amended based on the results of the previous one. RESULTS In the final model, 10 excisions of the skin and underlying soft tissue were created in each pig under general anesthesia, with additional incisions to the fascia performed at the base of the defects and immediately inoculated with Staphylococcus aureus suspension. One pig was not inoculated and used as the negative control. Subsequently, the bandages were changed on Days 4, 8, 11, and 15. At these time points, a filter paper imprint technique (FPIT) was made from each wound for semi-quantitative microbiological evaluation. Tissue samples from the base of the wound together with the adjacent intact tissue of three randomly selected defects of each pig were taken for microbiological, histopathological, and molecular-biological examination. The infection with the inoculated S. aureus strains was sufficient during the whole experiment as confirmed by both FPIT and from tissue samples. The dynamics of the inflammatory markers and clinical signs of infection are also described. CONCLUSIONS A successfully developed porcine model is suitable for in vivo testing of novel short-acting topical antimicrobial agents.
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Affiliation(s)
- Filip Raška
- Department of Burns and Plastic Surgery, Faculty of Medicine, Institution Shared with University Hospital Brno, Masaryk University, Brno, Czech Republic
| | - Břetislav Lipový
- Department of Burns Medicine, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Vinohrady, Prague, Czech Republic
- CEITEC-Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Šárka Kobzová
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
- Department of Biochemistry, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Lukáš Vacek
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
- Department of Microbiology, St. Anne's University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Rea Jarošová
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
- Department of Morphology, Physiology and Animal Genetics, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Dominika Kleknerová
- Department of Microbiology, St. Anne's University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Katarína Matiašková
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Peter Makovický
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
- Department of Histology and Embryology, Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
| | - Monika Vícenová
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Edita Jeklová
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Roman Pantůček
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Martin Faldyna
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - Lubomír Janda
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
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13
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Smith J, Rai V. Novel Factors Regulating Proliferation, Migration, and Differentiation of Fibroblasts, Keratinocytes, and Vascular Smooth Muscle Cells during Wound Healing. Biomedicines 2024; 12:1939. [PMID: 39335453 PMCID: PMC11429312 DOI: 10.3390/biomedicines12091939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 08/08/2024] [Accepted: 08/20/2024] [Indexed: 09/30/2024] Open
Abstract
Chronic diabetic foot ulcers (DFUs) are a significant complication of diabetes mellitus, often leading to amputation, increased morbidity, and a substantial financial burden. Even with the advancements in the treatment of DFU, the risk of amputation still exists, and this occurs due to the presence of gangrene and osteomyelitis. Nonhealing in a chronic DFU is due to decreased angiogenesis, granulation tissue formation, and extracellular matrix remodeling in the presence of persistent inflammation. During wound healing, the proliferation and migration of fibroblasts, smooth muscle cells, and keratinocytes play a critical role in extracellular matrix (ECM) remodeling, angiogenesis, and epithelialization. The molecular factors regulating the migration, proliferation, and differentiation of these cells are scarcely discussed in the literature. The literature review identifies the key factors influencing the proliferation, migration, and differentiation of fibroblasts, keratinocytes, and vascular smooth muscle cells (VSMCs), which are critical in wound healing. This is followed by a discussion on the various novel factors regulating the migration, proliferation, and differentiation of these cells but not in the context of wound healing; however, they may play a role. Using a network analysis, we examined the interactions between various factors, and the findings suggest that the novel factors identified may play a significant role in promoting angiogenesis, granulation tissue formation, and extracellular matrix remodeling during wound healing or DFU healing. However, these interactions warrant further investigation to establish their role alone or synergistically.
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Affiliation(s)
- Jacob Smith
- Department of Translational Research, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Vikrant Rai
- Department of Translational Research, Western University of Health Sciences, Pomona, CA 91766, USA
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Ko RF, Davidson OQC, Ahmed MA, Clark RM, Brandenburg JS, Pankratz VS, Sharma G, Hathaway HJ, Prossnitz ER, Howdieshell TR. GPER deficiency impedes murine myocutaneous revascularization and wound healing. Sci Rep 2024; 14:18400. [PMID: 39117675 PMCID: PMC11310200 DOI: 10.1038/s41598-024-68620-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 07/25/2024] [Indexed: 08/10/2024] Open
Abstract
Estrogens regulate numerous physiological and pathological processes, including wide-ranging effects in wound healing. The effects of estrogens are mediated through multiple estrogen receptors (ERs), including the classical nuclear ERs (ERα and ER β ), that typically regulate gene expression, and the 7-transmembrane G protein-coupled estrogen receptor (GPER), that predominantly mediates rapid "non-genomic" signaling. Estrogen modulates the expression of various genes involved in epidermal function and regeneration, inflammation, matrix production, and protease inhibition, all critical to wound healing. Our previous work demonstrated improved myocutaneous wound healing in female mice compared to male mice. In the current study, we employed male and female GPER knockout mice to investigate the role of this estrogen receptor in wound revascularization and tissue viability. Using a murine myocutaneous flap model of graded ischemia, we measured real-time flap perfusion via laser speckle perfusion imaging. We conducted histologic and immunohistochemical analyses to assess skin and muscle viability, microvascular density and vessel morphology. Our results demonstrate that GPER is crucial in wound healing, mediating effects that are both dependent and independent of sex. Lack of GPER expression is associated with increased skin necrosis, reduced flap perfusion and altered vessel morphology. These findings contribute to understanding GPER signaling in wound healing and suggest possible therapeutic opportunities by targeting GPER.
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Affiliation(s)
- Randy F Ko
- Division of Molecular Medicine, Department of Internal Medicine, University of New Mexico Health Science Center, Albuquerque, NM, 87131, USA
| | - Oliver Q C Davidson
- Department of Surgery, Augusta University/University of Georgia Medical Partnership, Athens, GA, 30602, USA
| | - Michael A Ahmed
- Department of Surgery, Augusta University/University of Georgia Medical Partnership, Athens, GA, 30602, USA
| | - Ross M Clark
- Department of Surgery, University of New Mexico Health Science Center, Albuquerque, NM, 87131, USA
- Department of Cell Biology and Physiology, University of New Mexico Health Science Center, Albuquerque, NM, 87131, USA
| | - Jacquelyn S Brandenburg
- Department of Surgery, University of New Mexico Health Science Center, Albuquerque, NM, 87131, USA
| | - Vernon S Pankratz
- Division of Epidemiology, Biostatistics, and Preventive Medicine Department of Internal Medicine, University of New Mexico Health Science Center, Albuquerque, NM, 87131, USA
| | - Geetanjali Sharma
- Division of Molecular Medicine, Department of Internal Medicine, University of New Mexico Health Science Center, Albuquerque, NM, 87131, USA
| | - Helen J Hathaway
- Department of Cell Biology and Physiology, University of New Mexico Health Science Center, Albuquerque, NM, 87131, USA
- University of New Mexico Comprehensive Cancer Center, University of New Mexico Health Science Center, Albuquerque, NM, 87131, USA
| | - Eric R Prossnitz
- Division of Molecular Medicine, Department of Internal Medicine, University of New Mexico Health Science Center, Albuquerque, NM, 87131, USA.
- University of New Mexico Comprehensive Cancer Center, University of New Mexico Health Science Center, Albuquerque, NM, 87131, USA.
- Center of Biomedical Research Excellence in Autophagy, Inflammation and Metabolism, University of New Mexico Health Science Center, Albuquerque, NM, 87131, USA.
| | - Thomas R Howdieshell
- Department of Surgery, Augusta University/University of Georgia Medical Partnership, Athens, GA, 30602, USA.
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15
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Schmidt A, von Woedtke T, Weltmann KD, Bekeschus S. YAP/TAZ, beta-catenin, and TGFb pathway activation in medical plasma-induced wound healing in diabetic mice. J Adv Res 2024:S2090-1232(24)00270-4. [PMID: 38986808 DOI: 10.1016/j.jare.2024.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/15/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024] Open
Abstract
INTRODUCTION Hippo is a signaling pathway that is evolutionarily conserved and plays critical roles in wound healing and tissue regeneration. Disruption of the transcriptional activity of both Hippo-associated factors, the yes-associated protein (YAP), and the transcriptional co-activator with PDZ binding motif (TAZ) has been associated with cardiovascular diseases, fibrosis, and cancer. This makes the Hippo pathway an appealing target for therapeutic interventions. OBJECTIVES Prior research has indicated that medical gas plasma promotes wound healing by delivering a combination of reactive species directly to the affected areas. However, the involvement of YAP/TAZ and other signaling pathways in diabetic wound healing remains unexplored. METHODS To this extent, ear wounds were generated and treated with gas plasma in streptozotocin (STZ)-induced diabetic mice. Transcriptome profiling at two wound healing stages (days 9 and 20 post-wounding) was performed in female and male mice. Additionally, we employed gene and protein expression analyses, utilizing immunohistological and -chemical staining of various targets as well as quantitative PCR and Western blot analysis. RESULTS Gas plasma treatment accelerated healing by increasing re-epithelialization and modifying extracellular matrix components. Transcriptomic profiling charting the major alterations in gene expression following plasma treatment was followed by a validation of several targets using transcriptional and translational quantification as well as localization analyses. CONCLUSION Our study evaluated the cellular regulation of essential targets of the Hippo and related pathways such as YAP/TAZ, β-catenin, tumor growth factor β, and oxidative stress signaling after plasma treatment. The activation of genes, pathways, and their regulators is an attractive therapeutic aim for a therapeutic intervention in dermal skin repair in diabetic diseases using medical gas plasmas.
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Affiliation(s)
- Anke Schmidt
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP), a member of the Leibniz Health Technologies Research Alliance, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Thomas von Woedtke
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP), a member of the Leibniz Health Technologies Research Alliance, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany; Institute for Hygiene and Environmental Medicine, Greifswald University Medical Center, Sauerbruchstr., 17475 Greifswald, Germany
| | - Klaus-Dieter Weltmann
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP), a member of the Leibniz Health Technologies Research Alliance, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Sander Bekeschus
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP), a member of the Leibniz Health Technologies Research Alliance, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany; Department of Clinic and Policlinic for Dermatology and Venerology, Rostock University Medical Center, Strempelstr. 13, 18057 Rostock, Germany.
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16
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Qi J, Amrutha AS, Ishida-Ishihara S, Dokainish HM, Hashim PK, Miyazaki R, Tsuda M, Tanaka S, Tamaoki N. Caging Bioactive Triarylimidazoles: An Approach to Create Visible Light-Activatable Drugs. J Am Chem Soc 2024; 146:18002-18010. [PMID: 38905195 DOI: 10.1021/jacs.4c04468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2024]
Abstract
Imidazoles are crucial structural components in a variety of small-molecule inhibitors designed to target different kinases in anticancer treatment. However, the effectiveness of such inhibitors is often hampered by nonspecific effects and the development of resistance. Photopharmacology provides a compelling solution by enabling external control over drug activity with spatiotemporal precision. Herein, we introduce a novel strategy for caging bioactive triarylimidazole-based drug molecules. This approach involves introducing a dialkylamino group as a photoremovable group on the carbon atom of the imidazole ring, which intrinsically modulates the core structure from planar imidazole to tetrahedral 2H-imidazole, enabling the caged compound to be selectively uncaged upon visible light exposure. We applied this innovative caging technique to SB431542, a triarylimidazole-based small-molecule inhibitor that targets the pivotal TGF-β signaling pathway, the dysregulation of which is linked to several human diseases, including cancer. Our results demonstrated the selective inhibition of human breast cancer cell migration in vitro upon light activation, highlighting the potential of our approach to transform triarylimidazole-based drug molecules into visible light-activatable drugs, thereby facilitating spatiotemporal regulation of their pharmacological activity.
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Affiliation(s)
- Jiajun Qi
- Research Institute for Electronic Science, Hokkaido University, Kita 20, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan
- Graduate School of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Ammathnadu S Amrutha
- Research Institute for Electronic Science, Hokkaido University, Kita 20, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan
- Graduate School of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Sumire Ishida-Ishihara
- Graduate School of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
- Faculty of Advanced Life Science, Hokkaido University, Kita 21, Nishi 11, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
| | - Hisham M Dokainish
- Center of Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita 12, Nishi 6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - P K Hashim
- Research Institute for Electronic Science, Hokkaido University, Kita 20, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan
- Graduate School of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Ryu Miyazaki
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido 060-8638, Japan
| | - Masumi Tsuda
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido 060-8638, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
| | - Shinya Tanaka
- Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido 060-8638, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
| | - Nobuyuki Tamaoki
- Research Institute for Electronic Science, Hokkaido University, Kita 20, Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0020, Japan
- Graduate School of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
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Li X, Young ER, Martin C, Ribaudo JG, Zaghloul M, Roberts S, Meade R, Arif B, Moritz WR, Madira S, Schofield JB, Xun H, Hicks CW, Kang SH, Zayed MA, Sacks JM. Vaso-Lock for sutureless anastomosis in a pig arteriovenous loop model. Biomaterials 2024; 308:122563. [PMID: 38574456 PMCID: PMC11453428 DOI: 10.1016/j.biomaterials.2024.122563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/29/2024] [Accepted: 03/31/2024] [Indexed: 04/06/2024]
Abstract
A vascular anastomosis is a critical surgical skill that involves connecting blood vessels. Traditional handsewn techniques can be challenging and resource intensive. To address these issues, we have developed a unique sutureless anastomotic device called Vaso-Lock. This intraluminal device connects free vascular ends using anchors to maintain traction and enable a rapid anastomosis. We tested the anastomotic capability of Vaso-Locks in a pig common carotid-internal jugular arteriovenous model. The use of Vaso-Lock allowed us to accomplish this procedure in less than 10 min, in contrast to the approximately 40 min required for a handsewn anastomosis. The Vaso-Lock effectively maintained patency for at least 6 weeks without causing significant tissue damage. Histological analysis revealed that the device was successfully incorporated into the arterial wall, promoting a natural healing process. Additionally, organ evaluations indicated no adverse effects from using the Vaso-Lock. Our findings support the safety and effectiveness of the Vaso-Lock for arteriovenous anastomosis in pigs, with potential applicability for translation to humans. Our novel sutureless device has the potential to advance surgical practice and improve patient outcomes.
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Affiliation(s)
- Xiaowei Li
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA.
| | - Emma R Young
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Cameron Martin
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Joseph G Ribaudo
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Mohamed Zaghloul
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Sophia Roberts
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Rodrigo Meade
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Batool Arif
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - William R Moritz
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Sarah Madira
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Jonathon B Schofield
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Helen Xun
- Department of Plastic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Caitlin W Hicks
- Division of Vascular Surgery and Endovascular Therapy, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Sung H Kang
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Mohamed A Zayed
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA; Division of Molecular Cell Biology, Washington University School of Medicine, St. Louis, MO, 63110, USA; Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, MO, 63130, USA; St. Louis Veterans Affairs Health Care System, St. Louis, MO, 63106, USA.
| | - Justin M Sacks
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA.
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18
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Pinky, Sharma A, Arora V, Rao EP, Arava S, Agrawal AK, Jassal M, Mohanty S. Modulating the hAM/PCL Biocomposite for Expedited Wound Healing: A Chemical-Free Approach for Boosting Regenerative Potential. ACS Biomater Sci Eng 2024; 10:3842-3854. [PMID: 38754076 DOI: 10.1021/acsbiomaterials.3c01740] [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] [Indexed: 05/18/2024]
Abstract
There is an arising need for effective wound dressings that retain the bioactivity of a cellular treatment, but without the high costs and complexities associated with manufacturing, storing, and applying cell-based products. As skin wound recovery is a dynamic and complicated process, a significant obstacle to the healing of skin wounds is the lack of an appropriate wound dressing that can imitate the microenvironment of healthy skin and prevent bacterial infection. It requires the well-orchestrated integration of biological and molecular events. In this study, we have fabricated full-thickness skin graft biocomposite membranes to target full-thickness skin excision wounds. We reinforced human amniotic membrane (hAM) with electrospun polycaprolactone (PCL) to develop composite membranes, namely, PCL/hAM and PCL/hAM/PCL. Composite membranes were compared for physical, biological, and mechanical properties with the native counterpart. PCL/hAM and PCL/hAM/PCL displayed improved stability and delayed degradation, which further synergically improved the rapid wound healing property of hAM, driven primarily by wound closure analysis and histological assessment. Moreover, PCL/hAM displayed a comparable cellular interaction to hAM. On application as a wound dressing, histological analysis demonstrated that hAM and PCL/hAM promoted early epidermis and dermis formation. Studies on in vivo wound healing revealed that although hAM accelerates cell development, the overall wound healing process is similar in PCL/hAM. This finding is further supported by the immunohistochemical analysis of COL-1/COL-3, CD-31, and TGF-β. Overall, this conjugated PCL and hAM-based membrane has considerable potential to be applied in skin wound healing. The facile fabrication of the PCL/hAM composite membrane provided the self-regenerating wound dressing with the desired mechanical strength as an ideal regenerative property for skin tissue regeneration.
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Affiliation(s)
- Pinky
- Stem Cell Facility, DBT-Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Aarushi Sharma
- Stem Cell Facility, DBT-Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Varun Arora
- SMITA Research Lab, Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - E Pranshu Rao
- Stem Cell Facility, DBT-Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Sudheer Arava
- Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - Ashwini K Agrawal
- SMITA Research Lab, Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Manjeet Jassal
- SMITA Research Lab, Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Sujata Mohanty
- Stem Cell Facility, DBT-Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
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19
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Baranda JC, Robbrecht D, Sullivan R, Doger B, Santoro A, Barve M, Grob J, Bechter O, Vieito M, de Miguel MJ, Schadendorf D, Johnson M, Pouzin C, Cantalloube C, Wang R, Lee J, Chen X, Demers B, Amrate A, Abbadessa G, Hodi FS. Safety, pharmacokinetics, pharmacodynamics, and antitumor activity of SAR439459, a TGFβ inhibitor, as monotherapy and in combination with cemiplimab in patients with advanced solid tumors: Findings from a phase 1/1b study. Clin Transl Sci 2024; 17:e13854. [PMID: 38898592 PMCID: PMC11186846 DOI: 10.1111/cts.13854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 05/09/2024] [Accepted: 05/14/2024] [Indexed: 06/21/2024] Open
Abstract
SAR439459 (SAR'459), a "second-generation" human anti-transforming growth factor beta (TGFβ) monoclonal antibody, enhances the activity of immune checkpoint inhibitors. In this phase I/Ib study, we evaluated the safety, pharmacokinetics (PK), pharmacodynamics, and antitumor activity of SAR'459 ± cemiplimab (intravenous) in patients with advanced solid tumors. Increasing doses of SAR'459 were administered every 2 or 3 weeks (Q2W, Q3W) alone (Part 1A) or with 3 mg/kg cemiplimab Q2W or 350 mg Q3W (Part 1B). In Part 2A (dose expansion), melanoma patients were randomly (1:1) administered 22.5 or 7.5 mg/kg SAR'459. In Part 2B (dose expansion), 22.5 mg/kg SAR'459 and 350 mg cemiplimab Q3W were administered. The primary end points were maximum tolerated dose (MTD) or maximum administered dose (MAD; Part 1), preliminary antitumor activity (Part 2B), and optimal monotherapy dose (Part 2A). Twenty-eight and 24 patients were treated in Parts 1A and 1B, respectively; MTD was not reached, MAD was 15 (Q2W) and 22.5 mg/kg (Q3W) alone and in combination, respectively. Fourteen and 95 patients, including 14 hepatocellular carcinoma (HCC) patients, were treated in Parts 2A and 2B, respectively. The population PK model yielded satisfactory goodness-of-fit plots and adequately described the observed data by a two-compartment PK model with linear elimination. Objective responses were not observed in Parts 1 and 2A. In Part 2B, objective response rate was 8.4% and 7.1% across tumor types and the HCC cohort, respectively. The most frequent treatment-emergent adverse effects were hemorrhagic events (43.5%), keratoacanthoma (6.8%), and skin neoplasms (6.2%). Fatal bleeding occurred in 21.4% HCC patients despite the implementation of mitigation measures. SAR'459 monotherapy and combination with cemiplimab appeared relatively safe and tolerable in limited number of patients in dose escalation. However, the study was discontinued due to the unclear efficacy of SAR'459 and bleeding risk, particularly in HCC patients.
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Affiliation(s)
- Joaquina C. Baranda
- Department of Internal MedicineUniversity of Kansas Cancer CenterFairwayKansasUSA
| | | | - Ryan Sullivan
- Massachusetts General Hospital Cancer Center and Harvard Medical SchoolBostonMassachusettsUSA
| | - Bernard Doger
- START Madrid Hospital Universitario Fundación Jiménez DíazMadridSpain
| | - Armando Santoro
- Department of Biomedical SciencesHumanitas University Via Rita Levi MontalciniPieve Emanuele, MilanItaly
- IRCCS Humanitas Research Hospital‐Humanitas Cancer Center Via ManzoniRozzano, MilanItaly
| | | | | | - Oliver Bechter
- Department of General Medical Oncology Leuven Cancer InstituteUniversity Hospitals Leuven, KU LeuvenLeuvenBelgium
| | - Maria Vieito
- Vall d'Hebron University Hospital and Institute of Oncology (VHIO) SpainBarcelonaSpain
| | | | - Dirk Schadendorf
- University of Essen and the German Cancer ConsortiumEssenGermany
| | - Melissa Johnson
- Sarah Cannon Research Institute/Tennessee Oncology, PLCCNashvilleTennesseeUSA
| | | | | | | | | | | | | | | | | | - F. Stephen Hodi
- Department of Medical Oncology, Center for Immuno‐OncologyDana‐Farber Cancer InstituteBostonMassachusettsUSA
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20
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Banerjee A, Singh P, Sheikh PA, Kumar A, Koul V, Bhattacharyya J. A multifunctional silk-hyaluronic acid self-healing hydrogel laden with alternatively activated macrophage-derived exosomes reshape microenvironment of diabetic wound and accelerate healing. Int J Biol Macromol 2024; 270:132384. [PMID: 38754682 DOI: 10.1016/j.ijbiomac.2024.132384] [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: 01/25/2024] [Revised: 04/14/2024] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
The impairment of phenotype switching of pro-inflammatory M1 to pro-healing M2 macrophage induced by hyperglycemic microenvironment often elevates oxidative stress, impairs angiogenesis, and leads to chronic non-healing wounds in diabetic patients. Administration of M2 macrophage-derived exosomes (M2Exo) at wound site is known to polarize M1 to M2 macrophage and can accelerate wound healing by enhancing collagen deposition, angiogenesis, and re-epithelialization. In the present study, M2Exo were conjugated with oxidized hyaluronic acid and mixed with PEGylated silk fibroin to develop self-healing Exo-gel to achieve an efficient therapy for diabetic wounds. Exo-gel depicted porous networked morphology with self-healing and excellent water retention behaviour. Fibroblast cells treated with Exo-gel showed significant uptake of M2Exo that increased their proliferation and migration in vitro. Interestingly, in a diabetic wound model of wistar rats, Exo-gel treatment induced 75 % wound closure within 7 days with complete epithelial layer regeneration by modulating cytokine levels, stimulating fibroblast-keratinocyte interaction and migration, angiogenesis, and organized collagen deposition. Taken together, this study suggests that Exo-gel depict properties of an excellent wound healing matrix and can be used as a therapeutic alternative to treat chronic non-healing diabetic wounds.
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Affiliation(s)
- Ahana Banerjee
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi-110016, India; Department of Biomedical Engineering, All India Institute of Medical Science, Delhi, New Delhi-110029, India
| | - Prerna Singh
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kalyanpur, Kanpur, Uttar Pradesh-208016, India; Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kalyanpur, Kanpur, Uttar Pradesh-208016, India
| | - Parvaiz A Sheikh
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi-110016, India
| | - Ashok Kumar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kalyanpur, Kanpur, Uttar Pradesh-208016, India; Centre for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kalyanpur, Kanpur, Uttar Pradesh-208016, India; The Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology Kanpur, Kalyanpur, Kanpur, Uttar Pradesh-208016, India; Centre of Excellence for Orthopedics and Prosthetics, Indian Institute of Technology Kanpur, Kalyanpur, Kanpur, Uttar Pradesh-208016, India; Gangwal School of Medical Sciences and Technology, Indian Institute of Technology Kanpur, Kalyanpur, Kanpur, Uttar Pradesh-208016, India
| | - Veena Koul
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi-110016, India; Department of Biomedical Engineering, All India Institute of Medical Science, Delhi, New Delhi-110029, India
| | - Jayanta Bhattacharyya
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi-110016, India; Department of Biomedical Engineering, All India Institute of Medical Science, Delhi, New Delhi-110029, India.
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21
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Kim HJ, Hong JH. Multiplicative Effects of Essential Oils and Other Active Components on Skin Tissue and Skin Cancers. Int J Mol Sci 2024; 25:5397. [PMID: 38791435 PMCID: PMC11121510 DOI: 10.3390/ijms25105397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 05/12/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Naturally derived essential oils and their active components are known to possess various properties, ranging from anti-oxidant, anti-inflammatory, anti-bacterial, anti-fungal, and anti-cancer activities. Numerous types of essential oils and active components have been discovered, and their permissive roles have been addressed in various fields. In this comprehensive review, we focused on the roles of essential oils and active components in skin diseases and cancers as discovered over the past three decades. In particular, we opted to highlight the effectiveness of essential oils and their active components in developing strategies against various skin diseases and skin cancers and to describe the effects of the identified essential-oil-derived major components from physiological and pathological perspectives. Overall, this review provides a basis for the development of novel therapies for skin diseases and cancers, especially melanoma.
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Affiliation(s)
| | - Jeong Hee Hong
- Department of Physiology, College of Medicine, Gachon University, Lee Gil Ya Cancer and Diabetes Institute, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Republic of Korea;
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22
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Ramey-Ward AN, Walthall HP, Smith S, Barrows TH. Human keratin matrices promote wound healing by modulating skin cell expression of cytokines and growth factors. Wound Repair Regen 2024; 32:257-267. [PMID: 38111086 DOI: 10.1111/wrr.13137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/12/2023] [Accepted: 11/30/2023] [Indexed: 12/20/2023]
Abstract
A wide variety of biomaterials has been developed to assist in wound healing, including acellular animal and human-derived protein matrices. However, millions of patients worldwide still suffer from non-healing chronic wounds, demonstrating a need for further innovation in wound care. To address this need, a novel biomaterial, the human keratin matrix (HKM), was developed, characterised, and tested in vitro and in vivo. HKM was found to be degradation-resistant, and a proteomics analysis showed it to be greater than 99% human keratin proteins. PCR revealed adult human epidermal keratinocytes (HEKa) grown in contact with HKM showed increased gene expression of keratinocyte activations markers such as Epidermal Growth Factor (EGF). Additionally, a cytokine microarray demonstrated culture on HKM increased the release of cytokines involved in wound inflammatory modulation by both HEKa cells and adult human dermal fibroblasts (HDFa). Finally, in a murine chronic wound model, full-thickness wounds treated weekly with HKM were smaller through the healing process than those treated with human amniotic membrane (AM), bovine dermis (BD), or porcine decellularized small intestinal submucosa (SIS). HKM-treated wounds also closed significantly faster than AM- and SIS-treated wounds. These data suggest that HKM is an effective novel treatment for chronic wounds.
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23
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Erban T, Kadleckova D, Sopko B, Harant K, Talacko P, Markovic M, Salakova M, Kadlikova K, Tachezy R, Tachezy J. Varroa destructor parasitism and Deformed wing virus infection in honey bees are linked to peroxisome-induced pathways. Proteomics 2024; 24:e2300312. [PMID: 38446070 DOI: 10.1002/pmic.202300312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 03/07/2024]
Abstract
The ectoparasitic mite Varroa destructor transmits and triggers viral infections that have deleterious effects on honey bee colonies worldwide. We performed a manipulative experiment in which worker bees collected at emergence were exposed to Varroa for 72 h, and their proteomes were compared with those of untreated control bees. Label-free quantitative proteomics identified 77 differentially expressed A. mellifera proteins (DEPs). In addition, viral proteins were identified by orthogonal analysis, and most importantly, Deformed wing virus (DWV) was found at high levels/intensity in Varroa-exposed bees. Pathway enrichment analysis suggested that the main pathways affected included peroxisomal metabolism, cyto-/exoskeleton reorganization, and cuticular proteins. Detailed examination of individual DEPs revealed that additional changes in DEPs were associated with peroxisomal function. In addition, the proteome data support the importance of TGF-β signaling in Varroa-DWV interaction and the involvement of the mTORC1 and Hippo pathways. These results suggest that the effect of DWV on bees associated with Varroa feeding results in aberrant autophagy. In particular, autophagy is selectively modulated by peroxisomes, to which the observed proteome changes strongly corresponded. This study complements previous research with different study designs and suggests the importance of the peroxisome, which plays a key role in viral infections.
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Affiliation(s)
- Tomas Erban
- Proteomics and Metabolomics Laboratory, Crop Research Institute, Prague 6-Ruzyne, Czechia
| | - Dominika Kadleckova
- Department of Genetics and Microbiology, Faculty of Science BIOCEV, Charles University, Vestec, Czechia
| | - Bruno Sopko
- Proteomics and Metabolomics Laboratory, Crop Research Institute, Prague 6-Ruzyne, Czechia
| | - Karel Harant
- Proteomics Core Facility, Faculty of Science BIOCEV, Charles University, Vestec, Czechia
| | - Pavel Talacko
- Proteomics Core Facility, Faculty of Science BIOCEV, Charles University, Vestec, Czechia
| | - Martin Markovic
- Proteomics and Metabolomics Laboratory, Crop Research Institute, Prague 6-Ruzyne, Czechia
| | - Martina Salakova
- Department of Genetics and Microbiology, Faculty of Science BIOCEV, Charles University, Vestec, Czechia
| | - Klara Kadlikova
- Proteomics and Metabolomics Laboratory, Crop Research Institute, Prague 6-Ruzyne, Czechia
| | - Ruth Tachezy
- Department of Genetics and Microbiology, Faculty of Science BIOCEV, Charles University, Vestec, Czechia
| | - Jan Tachezy
- Department of Parasitology, Faculty of Science BIOCEV, Charles University, Vestec, Czechia
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24
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Kim S, Park J, Choi Y, Jeon H, Lim N. Investigating the Relevance of Cyclic Adenosine Monophosphate Response Element-Binding Protein to the Wound Healing Process: An In Vivo Study Using Photobiomodulation Treatment. Int J Mol Sci 2024; 25:4838. [PMID: 38732058 PMCID: PMC11084265 DOI: 10.3390/ijms25094838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 04/05/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Monitoring inflammatory cytokines is crucial for assessing healing process and photobiomodulation (PBM) enhances wound healing. Meanwhile, cAMP response element-binding protein (CREB) is a regulator of cellular metabolism and proliferation. This study explored potential links between inflammatory cytokines and the activity of CREB in PBM-treated wounds. A total of 48 seven-week-old male SD rats were divided into four groups (wound location, skin or oral; treatment method, natural healing or PBM treatment). Wounds with a 6 mm diameter round shape were treated five times with an 808 nm laser every other day (total 60 J). The wound area was measured with a caliper and calculated using the elliptical formula. Histological analysis assessed the epidermal regeneration and collagen expression of skin and oral tissue with H&E and Masson's trichrome staining. Pro-inflammatory (TNF-α) and anti-inflammatory (TGF-β) cytokines were quantified by RT-PCR. The ratio of phosphorylated CREB (p-CREB) to unphosphorylated CREB was identified through Western blot. PBM treatment significantly reduced the size of the wounds on day 3 and day 7, particularly in the skin wound group (p < 0.05 on day 3, p < 0.001 on day 7). The density of collagen expression was significantly higher in the PBM treatment group (in skin wound, p < 0.05 on day 3, p < 0.001 on day 7, and p < 0.05 on day 14; in oral wound, p < 0.01 on day 7). The TGF-β/TNF-α ratio and the p-CREB/CREB ratio showed a parallel trend during wound healing. Our findings suggested that the CREB has potential as a meaningful marker to track the wound healing process.
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Affiliation(s)
- Sungyeon Kim
- Department of Plastic and Reconstructive Surgery, Dankook University College of Medicine, Cheonan 31116, Chungnam, Republic of Korea; (S.K.); (H.J.)
| | - Jion Park
- Department of Medical Laser, Graduate School, Dankook University, Cheonan 31116, Chungnam, Republic of Korea;
| | - Younghoon Choi
- Institute of Medical Science, Dankook University Hospital, Cheonan 31116, Chungnam, Republic of Korea;
| | - Hongbae Jeon
- Department of Plastic and Reconstructive Surgery, Dankook University College of Medicine, Cheonan 31116, Chungnam, Republic of Korea; (S.K.); (H.J.)
- Dankook Physician Scientist Research Center (DPSRC), Dankook University Hospital, Cheonan 31116, Chungnam, Republic of Korea
| | - Namkyu Lim
- Department of Plastic and Reconstructive Surgery, Dankook University College of Medicine, Cheonan 31116, Chungnam, Republic of Korea; (S.K.); (H.J.)
- Dankook Physician Scientist Research Center (DPSRC), Dankook University Hospital, Cheonan 31116, Chungnam, Republic of Korea
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25
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Huelsboemer L, Knoedler L, Kochen A, Yu CT, Hosseini H, Hollmann KS, Choi AE, Stögner VA, Knoedler S, Hsia HC, Pomahac B, Kauke-Navarro M. Cellular therapeutics and immunotherapies in wound healing - on the pulse of time? Mil Med Res 2024; 11:23. [PMID: 38637905 PMCID: PMC11025282 DOI: 10.1186/s40779-024-00528-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 04/10/2024] [Indexed: 04/20/2024] Open
Abstract
Chronic, non-healing wounds represent a significant challenge for healthcare systems worldwide, often requiring significant human and financial resources. Chronic wounds arise from the complex interplay of underlying comorbidities, such as diabetes or vascular diseases, lifestyle factors, and genetic risk profiles which may predispose extremities to local ischemia. Injuries are further exacerbated by bacterial colonization and the formation of biofilms. Infection, consequently, perpetuates a chronic inflammatory microenvironment, preventing the progression and completion of normal wound healing. The current standard of care (SOC) for chronic wounds involves surgical debridement along with localized wound irrigation, which requires inpatient care under general anesthesia. This could be followed by, if necessary, defect coverage via a reconstructive ladder utilizing wound debridement along with skin graft, local, or free flap techniques once the wound conditions are stabilized and adequate blood supply is restored. To promote physiological wound healing, a variety of approaches have been subjected to translational research. Beyond conventional wound healing drugs and devices that currently supplement treatments, cellular and immunotherapies have emerged as promising therapeutics that can behave as tailored therapies with cell- or molecule-specific wound healing properties. However, in contrast to the clinical omnipresence of chronic wound healing disorders, there remains a shortage of studies condensing the current body of evidence on cellular therapies and immunotherapies for chronic wounds. This review provides a comprehensive exploration of current therapies, experimental approaches, and translational studies, offering insights into their efficacy and limitations. Ultimately, we hope this line of research may serve as an evidence-based foundation to guide further experimental and translational approaches and optimize patient care long-term.
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Affiliation(s)
- Lioba Huelsboemer
- Division of Reconstructive and Plastic Surgery, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Leonard Knoedler
- Division of Reconstructive and Plastic Surgery, Yale School of Medicine, New Haven, CT, 06510, USA
- School of Medicine, University of Regensburg, 93040, Regensburg, Germany
| | - Alejandro Kochen
- Division of Reconstructive and Plastic Surgery, Yale School of Medicine, New Haven, CT, 06510, USA
- Regenerative Wound Healing Center, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Catherine T Yu
- Division of Reconstructive and Plastic Surgery, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Helia Hosseini
- Division of Reconstructive and Plastic Surgery, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Katharina S Hollmann
- School of Medicine, University of Wuerzburg, 97070, Würzburg, Germany
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Ashley E Choi
- California University of Science and Medicine, Colton, CA, 92324, USA
| | - Viola A Stögner
- Division of Reconstructive and Plastic Surgery, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Samuel Knoedler
- School of Medicine, University of Regensburg, 93040, Regensburg, Germany
| | - Henry C Hsia
- Division of Reconstructive and Plastic Surgery, Yale School of Medicine, New Haven, CT, 06510, USA
- Regenerative Wound Healing Center, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Bohdan Pomahac
- Division of Reconstructive and Plastic Surgery, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Martin Kauke-Navarro
- Division of Reconstructive and Plastic Surgery, Yale School of Medicine, New Haven, CT, 06510, USA.
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26
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O’Dowd K, Isham IM, Vatandour S, Boulianne M, Dozois CM, Gagnon CA, Barjesteh N, Abdul-Careem MF. Host Immune Response Modulation in Avian Coronavirus Infection: Tracheal Transcriptome Profiling In Vitro and In Vivo. Viruses 2024; 16:605. [PMID: 38675946 PMCID: PMC11053446 DOI: 10.3390/v16040605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Infectious bronchitis virus (IBV) is a highly contagious Gammacoronavirus causing moderate to severe respiratory infection in chickens. Understanding the initial antiviral response in the respiratory mucosa is crucial for controlling viral spread. We aimed to characterize the impact of IBV Delmarva (DMV)/1639 and IBV Massachusetts (Mass) 41 at the primary site of infection, namely, in chicken tracheal epithelial cells (cTECs) in vitro and the trachea in vivo. We hypothesized that some elements of the induced antiviral responses are distinct in both infection models. We inoculated cTECs and infected young specific pathogen-free (SPF) chickens with IBV DMV/1639 or IBV Mass41, along with mock-inoculated controls, and studied the transcriptome using RNA-sequencing (RNA-seq) at 3 and 18 h post-infection (hpi) for cTECs and at 4 and 11 days post-infection (dpi) in the trachea. We showed that IBV DMV/1639 and IBV Mass41 replicate in cTECs in vitro and the trachea in vivo, inducing host mRNA expression profiles that are strain- and time-dependent. We demonstrated the different gene expression patterns between in vitro and in vivo tracheal IBV infection. Ultimately, characterizing host-pathogen interactions with various IBV strains reveals potential mechanisms for inducing and modulating the immune response during IBV infection in the chicken trachea.
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Affiliation(s)
- Kelsey O’Dowd
- Health Research Innovation Centre, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (K.O.); (I.M.I.)
| | - Ishara M. Isham
- Health Research Innovation Centre, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (K.O.); (I.M.I.)
| | - Safieh Vatandour
- Department of Animal and Poultry Science, Islamic Azad University, Qaemshahr Branch, Qaem Shahr 4765161964, Iran;
| | - Martine Boulianne
- Swine and Poultry Infectious Diseases Research Centre–Fonds de Recherche du Québec (CRIPA-FRQ), Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada; (M.B.); (C.M.D.); (C.A.G.); (N.B.)
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada
| | - Charles M. Dozois
- Swine and Poultry Infectious Diseases Research Centre–Fonds de Recherche du Québec (CRIPA-FRQ), Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada; (M.B.); (C.M.D.); (C.A.G.); (N.B.)
- Institut National de Recherche Scientifique-Centre Armand-Frappier Santé Biotechnologie, Laval, QC H7V 1B7, Canada
| | - Carl A. Gagnon
- Swine and Poultry Infectious Diseases Research Centre–Fonds de Recherche du Québec (CRIPA-FRQ), Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada; (M.B.); (C.M.D.); (C.A.G.); (N.B.)
- Molecular Diagnostic and Virology Laboratories, Centre de Diagnostic Vétérinaire de l’Université de Montréal (CDVUM), Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada
| | - Neda Barjesteh
- Swine and Poultry Infectious Diseases Research Centre–Fonds de Recherche du Québec (CRIPA-FRQ), Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada; (M.B.); (C.M.D.); (C.A.G.); (N.B.)
| | - Mohamed Faizal Abdul-Careem
- Health Research Innovation Centre, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (K.O.); (I.M.I.)
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Bansal R, Torres M, Hunt M, Wang N, Chatzopoulou M, Manchanda M, Taddeo EP, Shu C, Shirihai OS, Bachar-Wikstrom E, Wikstrom JD. Role of the mitochondrial protein cyclophilin D in skin wound healing and collagen secretion. JCI Insight 2024; 9:e169213. [PMID: 38564292 PMCID: PMC11141914 DOI: 10.1172/jci.insight.169213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 03/27/2024] [Indexed: 04/04/2024] Open
Abstract
Central for wound healing is the formation of granulation tissue, which largely consists of collagen and whose importance stretches past wound healing, including being implicated in both fibrosis and skin aging. Cyclophilin D (CyD) is a mitochondrial protein that regulates the permeability transition pore, known for its role in apoptosis and ischemia-reperfusion. To date, the role of CyD in human wound healing and collagen generation has been largely unexplored. Here, we show that CyD was upregulated in normal wounds and venous ulcers, likely adaptive as CyD inhibition impaired reepithelialization, granulation tissue formation, and wound closure in both human and pig models. Overexpression of CyD increased keratinocyte migration and fibroblast proliferation, while its inhibition reduced migration. Independent of wound healing, CyD inhibition in fibroblasts reduced collagen secretion and caused endoplasmic reticulum collagen accumulation, while its overexpression increased collagen secretion. This was confirmed in a Ppif-KO mouse model, which showed a reduction in skin collagen. Overall, this study revealed previously unreported roles of CyD in skin, with implications for wound healing and beyond.
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Affiliation(s)
- Ritu Bansal
- Dermatology and Venereology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
| | - Monica Torres
- Dermatology and Venereology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
- Dermato-Venereology Clinic, Karolinska University Hospital, Stockholm, Sweden
| | - Matthew Hunt
- Dermatology and Venereology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
| | - Nuoqi Wang
- Dermatology and Venereology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
| | - Margarita Chatzopoulou
- Dermatology and Venereology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
| | - Mansi Manchanda
- Dermatology and Venereology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
| | - Evan P. Taddeo
- Metabolism Theme
- Department of Molecular and Medical Pharmacology, and
- Department of Medicine, Division of Endocrinology, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Cynthia Shu
- Metabolism Theme
- Department of Molecular and Medical Pharmacology, and
- Department of Medicine, Division of Endocrinology, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Orian S. Shirihai
- Metabolism Theme
- Department of Molecular and Medical Pharmacology, and
- Department of Medicine, Division of Endocrinology, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Etty Bachar-Wikstrom
- Dermatology and Venereology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
| | - Jakob D. Wikstrom
- Dermatology and Venereology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
- Dermato-Venereology Clinic, Karolinska University Hospital, Stockholm, Sweden
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28
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Malaviya R, Meshanni JA, Sunil VR, Venosa A, Guo C, Abramova EV, Vayas KN, Jiang C, Cervelli JA, Gow AJ, Laskin JD, Laskin DL. Role of macrophage bioenergetics in N-acetylcysteine-mediated mitigation of lung injury and oxidative stress induced by nitrogen mustard. Toxicol Appl Pharmacol 2024; 485:116908. [PMID: 38513841 DOI: 10.1016/j.taap.2024.116908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 03/16/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
Nitrogen mustard (NM) is a toxic vesicant that causes acute injury to the respiratory tract. This is accompanied by an accumulation of activated macrophages in the lung and oxidative stress which have been implicated in tissue injury. In these studies, we analyzed the effects of N-acetylcysteine (NAC), an inhibitor of oxidative stress and inflammation on NM-induced lung injury, macrophage activation and bioenergetics. Treatment of rats with NAC (150 mg/kg, i.p., daily) beginning 30 min after administration of NM (0.125 mg/kg, i.t.) reduced histopathologic alterations in the lung including alveolar interstitial thickening, blood vessel hemorrhage, fibrin deposition, alveolar inflammation, and bronchiolization of alveolar walls within 3 d of exposure; damage to the alveolar-epithelial barrier, measured by bronchoalveolar lavage fluid protein and cells, was also reduced by NAC, along with oxidative stress as measured by heme oxygenase (HO)-1 and Ym-1 expression in the lung. Treatment of rats with NAC attenuated the accumulation of macrophages in the lung expressing proinflammatory genes including Ptgs2, Nos2, Il-6 and Il-12; macrophages expressing inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2 and tumor necrosis factor (TNF)α protein were also reduced in histologic sections. Conversely, NAC had no effect on macrophages expressing the anti-inflammatory proteins arginase-1 or mannose receptor, or on NM-induced increases in matrix metalloproteinase (MMP)-9 or proliferating cell nuclear antigen (PCNA), markers of tissue repair. Following NM exposure, lung macrophage basal and maximal glycolytic activity increased, while basal respiration decreased indicating greater reliance on glycolysis to generate ATP. NAC increased both glycolysis and oxidative phosphorylation. Additionally, in macrophages from both control and NM treated animals, NAC treatment resulted in increased S-nitrosylation of ATP synthase, protecting the enzyme from oxidative damage. Taken together, these data suggest that alterations in NM-induced macrophage activation and bioenergetics contribute to the efficacy of NAC in mitigating lung injury.
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Affiliation(s)
- Rama Malaviya
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Jaclynn A Meshanni
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Vasanthi R Sunil
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Alessandro Venosa
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT 84112, USA
| | - Changjiang Guo
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Elena V Abramova
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Kinal N Vayas
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Chenghui Jiang
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Jessica A Cervelli
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Andrew J Gow
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Jeffrey D Laskin
- Department of Environmental and Occupational Health and Justice, School of Public Health, Rutgers University, Piscataway, NJ 08854, USA
| | - Debra L Laskin
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA.
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29
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Jadi PK, Dave A, Issa R, Tabbasum K, Okurowska K, Samarth A, Urwin L, Green LR, Partridge LJ, MacNeil S, Garg P, Monk PN, Roy S. Tetraspanin CD9-derived peptides inhibit Pseudomonas aeruginosa corneal infection and aid in wound healing of corneal epithelial cells. Ocul Surf 2024; 32:211-218. [PMID: 37406881 DOI: 10.1016/j.jtos.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/24/2023] [Accepted: 07/01/2023] [Indexed: 07/07/2023]
Abstract
Pseudomonas aeruginosa is a leading cause of corneal infection both within India and globally, often causing a loss of vision. Increasing antimicrobial resistance among the bacteria is making its treatment more difficult. Preventing initial bacterial adherence to the host membrane has been explored here to reduce infection of the cornea. Synthetic peptides derived from human tetraspanin CD9 have been shown to reduce infection in corneal cells both in vitro, ex vivo and in vivo. We found constitutive expression of CD9 in immortalized human corneal epithelial cells by flow cytometry and immunocytochemistry. The synthetic peptides derived from CD9 significantly reduced bacterial adherence to cultured corneal epithelial cells and ex vivo human cadaveric corneas as determined by colony forming units. The peptides also significantly reduced bacterial burden in a murine model of Pseudomonas keratitis and lowered the cellular infiltration in the corneal stroma. Additionally, the peptides aided corneal wound healing in uninfected C57BL/6 mice compared to control mice. These potential therapeutics had no effect on cell viability or proliferation of corneal epithelial cells and have the potential to be developed as an alternative therapeutic intervention.
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MESH Headings
- Animals
- Pseudomonas Infections/drug therapy
- Pseudomonas Infections/microbiology
- Mice
- Pseudomonas aeruginosa/physiology
- Humans
- Epithelium, Corneal/drug effects
- Epithelium, Corneal/metabolism
- Epithelium, Corneal/pathology
- Epithelium, Corneal/microbiology
- Mice, Inbred C57BL
- Wound Healing/drug effects
- Eye Infections, Bacterial/microbiology
- Eye Infections, Bacterial/drug therapy
- Eye Infections, Bacterial/metabolism
- Tetraspanin 29/metabolism
- Disease Models, Animal
- Flow Cytometry
- Peptides/pharmacology
- Cells, Cultured
- Immunohistochemistry
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Affiliation(s)
- Praveen Kumar Jadi
- Prof. Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, 500034, India
| | - Alpana Dave
- Prof. Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, 500034, India
| | - Rahaf Issa
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, S10 2RX, United Kingdom
| | - Khatija Tabbasum
- Prof. Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, 500034, India
| | - Katarzyna Okurowska
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield, S1 3JD, United Kingdom; Sheffield Collaboratorium for Antimicrobial Resistance and Biofilms (SCARAB), Department of Chemical and Biological Engineering, University of Sheffield, Sheffield, S1 3JD, United Kingdom
| | - Apurwa Samarth
- Prof. Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, 500034, India
| | - Lucy Urwin
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, S10 2RX, United Kingdom; School of Biosciences, University of Sheffield, S10 2TN, United Kingdom
| | - Luke R Green
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, S10 2RX, United Kingdom
| | - Lynda J Partridge
- School of Biosciences, University of Sheffield, S10 2TN, United Kingdom
| | - Sheila MacNeil
- Department of Materials Science Engineering, University of Sheffield, Broad Lane, Sheffield, S3 7HQ, United Kingdom
| | - Prashant Garg
- Prof. Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, 500034, India; The Cornea Institute, LV Prasad Eye Institute, Hyderabad, 500034, India
| | - Peter N Monk
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, S10 2RX, United Kingdom.
| | - Sanhita Roy
- Prof. Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, 500034, India.
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30
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Sourvanos D, Zhu TC, Dimofte A, Busch TM, Lander B, Burrell JC, Neiva R, Fiorellini JP. A novel investigational preclinical model to assess fluence rate for dental oral craniofacial tissues. Photodiagnosis Photodyn Ther 2024; 46:104015. [PMID: 38373469 PMCID: PMC11139582 DOI: 10.1016/j.pdpdt.2024.104015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/21/2024]
Abstract
OBJECTIVE Photodynamic Therapy (PDT) and Photobiomodulation (PBM) are recognized for their potential in treating head and neck conditions. The heterogeneity of human tissue optical properties presents a challenge for effective dosimetry. The porcine mandible cadaver serves as an excellent model and has several similarities to human tissues of the dental oral craniofacial complex. This study aims to validate a novel modeling system that will help refine PDT and PBM dosimetry for the head and neck region. METHODS AND MATERIALS Light transmission was analyzed through several tissue combinations at distances of 2 mm to 10 mm. Maximum light fluence rates (mW/cm2) were compared across tissue types to reveal the effects of tissue heterogeneity. RESULTS The study revealed that light fluence is affected by tissue composition, with dentin/enamel showing reduced transmission and soft tissue regions exhibiting elevated values. The porcine model has proven to be efficient in mimicking human tissue responses to light, enabling the potential to optimize future protocols. CONCLUSION The porcine mandible cadaver is a novel model to understand the complex interactions between light and tissue. This study provides a foundation for future investigations into dosimetry optimization for PDT and PBM.
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Affiliation(s)
- Dennis Sourvanos
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA; Center for Innovation and Precision Dentistry (CiPD), School of Dental Medicine, School of Engineering, University of Pennsylvania, PA, USA.
| | - Timothy C Zhu
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Andreea Dimofte
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Theresa M Busch
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Bradley Lander
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA
| | - Justin C Burrell
- Center for Innovation and Precision Dentistry (CiPD), School of Dental Medicine, School of Engineering, University of Pennsylvania, PA, USA; Department of Oral and Maxillofacial Surgery, Hospital of the University of Pennsylvania and University of Pennsylvania School of Dental Medicine, University of Pennsylvania, PA, USA; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michal J. Crescenz Veterans Affairs Medical Center, PA, USA
| | - Rodrigo Neiva
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA
| | - Joseph P Fiorellini
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA
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31
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Cui K, Gong S, Bai J, Xue L, Li X, Wang X. Exploring the impact of TGF-β family gene mutations and expression on skin wound healing and tissue repair. Int Wound J 2024; 21:e14596. [PMID: 38151761 PMCID: PMC10961875 DOI: 10.1111/iwj.14596] [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: 11/27/2023] [Revised: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 12/29/2023] Open
Abstract
Transforming Growth Factor-Beta (TGF-β) signalling pathway is of paramount importance in the processes of wound healing, epidermal integrity maintenance and development of skin cancer. The objective of this research endeavour was to clarify the impact of gene mutations and variations in expression within TGF-β family on mechanisms of tissue repair, as well as to identify potential targets for therapeutic purposes in non-melanoma skin cancer (NMSC). The methods utilized in this study involved obtaining RNA-seq data from 224 NMSC patients and paired normal skin tissues from the PRJNA320473 and PRJEB27606 databases. The purpose of the differential gene expression analysis was to identify genes whose expression had changed significantly. In order to evaluate the effects and interrelationships of identified gene variants, structural analysis with AlphaFold and PDB data and network analysis with the STRING database were both utilized. Critical gene expression was externally validated through the utilization of the GEPIA database. Tumour tissues exhibited a notable upregulation of genes associated with the TGF-β pathway, specifically MMP1, MMP3, MMP9, EGF, COL3A1 and COL1A2, in comparison with normal tissues. As indicated by the central node status of these genes in the network analysis, they play a crucial role in the progression of NMSCs. The results of the structural analysis suggested that mutations might cause functional disruptions. External validation of the upregulation confirmed the expression trends and emphasized the biomarker potential of the upregulated genes. In conclusion, this research offered thorough examination of molecular modifications that occur in TGF-β family genes, which are linked to cutaneous wound healing and NMSC. The modified expression of the identified hub genes may represent innovative targets for therapeutic intervention.
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Affiliation(s)
- Kai Cui
- Thoracic Surgery DepartmentXi'an International Medical Center HospitalXi'anChina
| | - Sunxin Gong
- Thoracic Surgery DepartmentXi'an International Medical Center HospitalXi'anChina
| | - Junfeng Bai
- Thoracic Surgery DepartmentXi'an International Medical Center HospitalXi'anChina
| | - Liangliang Xue
- Thoracic Surgery DepartmentXi'an International Medical Center HospitalXi'anChina
| | - Xue Li
- Thoracic Surgery DepartmentXi'an International Medical Center HospitalXi'anChina
| | - Xiaodong Wang
- Thoracic Surgery DepartmentSecond Affiliated Hospital of Fourth Military Medical UniversityXi'anChina
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32
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Podgórska A, Kicman A, Naliwajko S, Wacewicz-Muczyńska M, Niczyporuk M. Zinc, Copper, and Iron in Selected Skin Diseases. Int J Mol Sci 2024; 25:3823. [PMID: 38612631 PMCID: PMC11011755 DOI: 10.3390/ijms25073823] [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: 02/06/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
Trace elements are essential for maintaining the body's homeostasis, and their special role has been demonstrated in skin physiology. Among the most important trace elements are zinc, copper, and iron. A deficiency or excess of trace elements can be associated with an increased risk of skin diseases, so increasing their supplementation or limiting intake can be helpful in dermatological treatment. In addition, determinations of their levels in various types of biological material can be useful as additional tests in dermatological treatment. This paper describes the role of these elements in skin physiology and summarizes data on zinc, copper, and iron in the course of selected, following skin diseases: psoriasis, pemphigus vulgaris, atopic dermatitis, acne vulgaris and seborrheic dermatitis. In addition, this work identifies the potential of trace elements as auxiliary tests in dermatology. According to preliminary studies, abnormal levels of zinc, copper, and iron are observed in many skin diseases and their determinations in serum or hair can be used as auxiliary and prognostic tests in the course of various dermatoses. However, since data for some conditions are conflicting, clearly defining the potential of trace elements as auxiliary tests or elements requiring restriction/supplement requires further research.
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Affiliation(s)
- Aleksandra Podgórska
- Department of Aesthetic Medicine, Medical University of Bialystok, 15-267 Bialystok, Poland; (A.P.); (A.K.); (M.N.)
| | - Aleksandra Kicman
- Department of Aesthetic Medicine, Medical University of Bialystok, 15-267 Bialystok, Poland; (A.P.); (A.K.); (M.N.)
| | - Sylwia Naliwajko
- Department of Bromatology, Medical University of Bialystok, 15-222 Bialystok, Poland;
| | | | - Marek Niczyporuk
- Department of Aesthetic Medicine, Medical University of Bialystok, 15-267 Bialystok, Poland; (A.P.); (A.K.); (M.N.)
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33
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Hemmati Dezaki Z, Parivar K, Goodarzi V, Nourani MR. Cobalt/Bioglass Nanoparticles Enhanced Dermal Regeneration in a 3-Layered Electrospun Scaffold. Adv Pharm Bull 2024; 14:192-207. [PMID: 38585469 PMCID: PMC10997931 DOI: 10.34172/apb.2024.006] [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: 03/10/2022] [Revised: 11/12/2022] [Accepted: 07/19/2023] [Indexed: 04/09/2024] Open
Abstract
Purpose Due to the multilayered structure of the skin tissue, the architecture of its engineered scaffolds needs to be improved. In the present study, 45s5 bioglass nanoparticles were selected to induce fibroblast proliferation and their protein secretion, although cobalt ions were added to increase their potency. Methods A 3-layer scaffold was designed as polyurethane (PU) - polycaprolactone (PCL)/ collagen/nanoparticles-PCL/collagen. The scaffolds examined by scanning electron microscopy (SEM), Fourier transform infrared (FTIR), tensile, surface hydrophilicity and weight loss. Biological tests were performed to assess cell survival, adhesion and the pattern of gene expression. Results The mechanical assay showed the highest young modulus for the scaffold with the doped nanoparticles and the water contact angle of this scaffold after chemical crosslinking of collagen was reduced to 52.34±7.7°. In both assessments, the values were statistically compared to other groups. The weight loss of the corresponding scaffold was the highest value of 82.35±4.3 % due to the alkaline effect of metal ions and indicated significant relations in contrast to the scaffold with non-doped particles and bare one (P value<0.05). Moreover, better cell expansion, greater cell confluence and a lower degree of toxicity were confirmed. The up-regulation of TGF β1 and VEGF genes introduced this scaffold as a better model for the fibroblasts commitment to a new skin tissue among bare and nondoped scaffold (P value<0.05). Conclusion The 3-layered scaffold which is loaded with cobalt ions-bonded bioglass nanoparticles, is a better substrate for the culture of the fibroblasts.
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Affiliation(s)
- Zahra Hemmati Dezaki
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Kazem Parivar
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Vahabodin Goodarzi
- Tissue Engineering and Regenerative Medicine Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mohamad Reza Nourani
- Tissue Engineering and Regenerative Medicine Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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34
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Mulder PPG, Hooijmans CR, Vlig M, Middelkoop E, Joosten I, Koenen HJPM, Boekema BKHL. Kinetics of Inflammatory Mediators in the Immune Response to Burn Injury: Systematic Review and Meta-Analysis of Animal Studies. J Invest Dermatol 2024; 144:669-696.e10. [PMID: 37806443 DOI: 10.1016/j.jid.2023.09.269] [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: 05/25/2023] [Revised: 08/31/2023] [Accepted: 09/20/2023] [Indexed: 10/10/2023]
Abstract
Burns are often accompanied by a dysfunctional immune response, which can lead to systemic inflammation, shock, and excessive scarring. The objective of this study was to provide insight into inflammatory pathways associated with burn-related complications. Because detailed information on the various inflammatory mediators is scattered over individual studies, we systematically reviewed animal experimental data for all reported inflammatory mediators. Meta-analyses of 352 studies revealed a strong increase in cytokines, chemokines, and growth factors, particularly 19 mediators in blood and 12 in burn tissue. Temporal kinetics showed long-lasting surges of proinflammatory cytokines in blood and burn tissue. Significant time-dependent effects were seen for IL-1β, IL-6, TGF-β1, and CCL2. The response of anti-inflammatory mediators was limited. Burn technique had a profound impact on systemic response levels. Large burn size and scalds further increased systemic, but not local inflammation. Animal characteristics greatly affected inflammation, for example, IL-1β, IL-6, and TNF-α levels were highest in young, male rats. Time-dependent effects and dissimilarities in response demonstrate the importance of appropriate study design. Collectively, this review presents a general overview of the burn-induced immune response exposing inflammatory pathways that could be targeted through immunotherapy for burn patients and provides guidance for experimental set-ups to advance burn research.
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Affiliation(s)
- Patrick P G Mulder
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, The Netherlands; Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - Carlijn R Hooijmans
- Meta-Research Team, Department of Anesthesiology, Pain and Palliative Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marcel Vlig
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, The Netherlands
| | - Esther Middelkoop
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, The Netherlands; Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands; Tissue Function and Regeneration, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Irma Joosten
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Hans J P M Koenen
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Bouke K H L Boekema
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, The Netherlands; Department of Plastic, Reconstructive and Hand Surgery, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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35
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Ma TY, Tang SL, Wang B, Wang G, Sun CM, Pan JX, Han DQ, Li JY, Zhong JH. Role of TGF-β3 in modulating inflammatory responses and wound healing processes in ischemic ulcers in atherosclerotic patients. Int Wound J 2024; 21:e14762. [PMID: 38356162 PMCID: PMC10867290 DOI: 10.1111/iwj.14762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 01/26/2024] [Accepted: 01/28/2024] [Indexed: 02/16/2024] Open
Abstract
Ischemic ulcers pose a multifaceted clinical dilemma for patients with atherosclerosis, frequently compounded by suboptimal wound healing mechanisms. The dual function of Transforming Growth Factor Beta 3 (TGF-β3) in ischemic ulcer healing is not fully comprehended, despite its involvement in modulating inflammatory responses and tissue regeneration. The main aim of this investigation was to clarify the functions and mechanisms by which TGF-β3 regulates inflammatory responses and promotes wound healing in patients with ischemic ulcers who have atherosclerosis. Between August 2022 and November 2023, this cross-sectional investigation was conducted on 428 patients diagnosed with atherosclerotic ischemic ulcers in Haikou, China. The expression and function of TGF-β3 were examined throughout the different stages of wound healing, including inflammation, proliferation and remodelling. In addition to documenting patient demographics and ulcer characteristics, an analysis was conducted on biopsy samples to determine the expression of TGF-β3, pro-inflammatory and anti-inflammatory markers. A subset of patients were administered topical TGF-β3 in order to evaluate its therapeutic effects. The expression pattern of TGF-β3 was found to be stage-dependent and significant, exhibiting increased levels during the phase of inflammation and reduced activity in subsequent phases. TGF-β3 levels were found to be greater in ulcers that were larger and deeper, especially in inflammatory phase. TGF-β3 applied topically induced discernible enhancement in ulcer healing parameters, such as reduction in ulcer depth and size. The therapeutic significance of TGF-β3 was emphasised due to its twofold function of regulating the inflammatory environment and facilitating the regeneration of damaged tissues. Ischemic ulcer lesion healing is significantly influenced by TGF-β3, which functions as an anti-inflammatory and pro-inflammatory mediator. Its correlation with ulcer characteristics and stages of healing suggests that it may have utility as a targeted therapeutic agent.
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Affiliation(s)
- Tian Yi Ma
- Department of CardiologyHaikou Affiliated Hospital of Central South University Xiangya School of MedicineHaikouHainanChina
| | - Shi Lin Tang
- Department of CardiologyHaikou Affiliated Hospital of Central South University Xiangya School of MedicineHaikouHainanChina
| | - Bin Wang
- Department of CardiologyHaikou Affiliated Hospital of Central South University Xiangya School of MedicineHaikouHainanChina
| | - Gan Wang
- Department of CardiologyHaikou Affiliated Hospital of Central South University Xiangya School of MedicineHaikouHainanChina
| | - Chang Ming Sun
- Department of CardiologyHaikou Affiliated Hospital of Central South University Xiangya School of MedicineHaikouHainanChina
| | - Jia Xi Pan
- Department of CardiologyHaikou Affiliated Hospital of Central South University Xiangya School of MedicineHaikouHainanChina
| | - Dan Qi Han
- Department of CardiologyHaikou Affiliated Hospital of Central South University Xiangya School of MedicineHaikouHainanChina
| | - Jia Yang Li
- Department of CardiologyHaikou Affiliated Hospital of Central South University Xiangya School of MedicineHaikouHainanChina
| | - Jiang Hua Zhong
- Department of CardiologyHaikou Affiliated Hospital of Central South University Xiangya School of MedicineHaikouHainanChina
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Kohoolat G, Alizadeh P, Motesadi Zarandi F, Rezaeipour Y. A ternary composite hydrogel based on sodium alginate, carboxymethyl cellulose and copper-doped 58S bioactive glass promotes cutaneous wound healing in vitro and in vivo. Int J Biol Macromol 2024; 259:129260. [PMID: 38199544 DOI: 10.1016/j.ijbiomac.2024.129260] [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: 08/14/2023] [Revised: 12/26/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
Hydrogels offer a novel approach to wound repair. In this study, we synthesized a ternary composite using sodium alginate (SA), carboxymethyl cellulose (CMC) and copper-doped 58S bioactive glass (BG). According to our mechanical testing results, the composite made of 7 wt% CMC and 7 wt% BG (SA-7CMC-7BG) showed optimal properties. In addition, our in vitro studies revealed the biocompatibility and bioactivity of SA-7CMC-7BG, with a negative zeta potential of -31.7 mV. Scanning electron microscope (SEM) images showed 273-μm-diameter pores, cell adhesion, and anchoring. The SA-7CMC-7BG closed 90.4 % of the mechanical scratch after 2 days. An in vivo wound model using Wistar rats showed that SA-7CMC-7BG promoted wound healing, with 85.57 % of the wounds healed after 14 days. Treatment with the SA-7CMC-7BG hydrogel caused a 1.6-, 65-, and 1.87-fold increase in transforming growth factor beta (TGF-β), Col I, and vascular endothelial growth factor (VEGF) expression, respectively that prevents fibrosis and promotes angiogenesis. Furthermore, interleukin 1β (IL-1β) expression was downregulated by 1.61-fold, indicating an anti-inflammatory effect of SA-7CMC-7BG. We also observed an increase in epidermal thickness, the number of fibroblast cells, and collagen deposition, which represent complementary pathology results confirming the effectiveness of the SA-7CMC-7BG hydrogel in cutaneous wound healing.
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Affiliation(s)
- Ghazaleh Kohoolat
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
| | - Parvin Alizadeh
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran.
| | - Fatemeh Motesadi Zarandi
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
| | - Yashar Rezaeipour
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
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Gaspar D, Ginja C, Carolino N, Leão C, Monteiro H, Tábuas L, Branco S, Padre L, Caetano P, Romão R, Matos C, Ramos AM, Bettencourt E, Usié A. Genome-wide association study identifies genetic variants underlying footrot in Portuguese Merino sheep. BMC Genomics 2024; 25:100. [PMID: 38262937 PMCID: PMC10804546 DOI: 10.1186/s12864-023-09844-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 11/26/2023] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND Ovine footrot caused by Dichelobacter nodosus (D. nodosus) is a contagious disease with serious economic and welfare impacts in sheep production systems worldwide. A better understanding of the host genetic architecture regarding footrot resistance/susceptibility is crucial to develop disease control strategies that efficiently reduce infection and its severity. A genome-wide association study was performed using a customized SNP array (47,779 SNPs in total) to identify genetic variants associated to footrot resistance/susceptibility in two Portuguese native breeds, i.e. Merino Branco and Merino Preto, and a population of crossbred animals. A cohort of 1375 sheep sampled across 17 flocks, located in the Alentejo region (southern Portugal), was included in the analyses. RESULTS Phenotypes were scored from 0 (healthy) to 5 (severe footrot) based on visual inspection of feet lesions, following the Modified Egerton System. Using a linear mixed model approach, three SNPs located on chromosome 24 reached genome-wide significance after a Bonferroni correction (p < 0.05). Additionally, six genome-wide suggestive SNPs were identified each on chromosomes 2, 4, 7, 8, 9 and 15. The annotation and KEGG pathway analyses showed that these SNPs are located within regions of candidate genes such as the nonsense mediated mRNA decay associated PI3K related kinase (SMG1) (chromosome 24) and the RALY RNA binding protein like (RALYL) (chromosome 9), both involved in immunity, and the heparan sulfate proteoglycan 2 (HSPG2) (chromosome 2) and the Thrombospodin 1 (THBS1) (chromosome 7) implicated in tissue repair and wound healing processes. CONCLUSION This is the first attempt to identify molecular markers associated with footrot in Portuguese Merino sheep. These findings provide relevant information on a likely genetic association underlying footrot resistance/susceptibility and the potential candidate genes affecting this trait. Genetic selection strategies assisted on the information obtained from this study could enhance Merino sheep-breeding programs, in combination with farm management strategies, for a more effective and sustainable long-term solution for footrot control.
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Affiliation(s)
- Daniel Gaspar
- Centro de Biotecnologia Agrícola E Agro-Alimentar Do Alentejo (CEBAL)/ Instituto Politécnico de Beja (IPBeja), 7801-908, Beja, Portugal
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Campus de Vairão, R. Padre Armando Quintas 7, 4485-661, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, Campus do Varão, Campus de Vairão, R. Padre Armando Quintas 7, 4485-661, Vairão, Portugal
| | - Catarina Ginja
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Campus de Vairão, R. Padre Armando Quintas 7, 4485-661, Vairão, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, Campus do Varão, Campus de Vairão, R. Padre Armando Quintas 7, 4485-661, Vairão, Portugal
- CIISA, Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. Universidade Técnica, 1300-477, Lisboa, Portugal
| | - Nuno Carolino
- CIISA, Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. Universidade Técnica, 1300-477, Lisboa, Portugal
- Instituto Nacional de Investigação Agrária E Veterinária, I.P. (INIAV, I.P.), Avenida da República, Quinta Do Marquês, 2780-157, Oeiras, Portugal
- Escola Universitária Vasco da Gama, Av. José R. Sousa Fernandes 197, 3020-210, Lordemão, Coimbra, Portugal
| | - Célia Leão
- Centro de Biotecnologia Agrícola E Agro-Alimentar Do Alentejo (CEBAL)/ Instituto Politécnico de Beja (IPBeja), 7801-908, Beja, Portugal
- Instituto Nacional de Investigação Agrária E Veterinária, I.P. (INIAV, I.P.), Avenida da República, Quinta Do Marquês, 2780-157, Oeiras, Portugal
- MED - Mediterranean Institute for Agriculture, Environment and Development and CHANGE - Global Change and Sustainability Institute, CEBAL - Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo, 7801-908, Beja, Portugal
| | | | | | - Sandra Branco
- MED-Mediterranean Institute for Agriculture, Environment and Development and CHANGE - Global Change and Sustainability Institute, University of Évora, Polo da Mitra, Ap. 94, 7006-554, Évora, Portugal
- Departamento de Medicina Veterinária, Escola de Ciências E Tecnologia, Évora University, Pólo da Mitra Ap. 94, 7002-554, Évora, Portugal
| | - Ludovina Padre
- MED-Mediterranean Institute for Agriculture, Environment and Development and CHANGE - Global Change and Sustainability Institute, University of Évora, Polo da Mitra, Ap. 94, 7006-554, Évora, Portugal
| | - Pedro Caetano
- MED-Mediterranean Institute for Agriculture, Environment and Development and CHANGE - Global Change and Sustainability Institute, University of Évora, Polo da Mitra, Ap. 94, 7006-554, Évora, Portugal
| | - Ricardo Romão
- MED-Mediterranean Institute for Agriculture, Environment and Development and CHANGE - Global Change and Sustainability Institute, University of Évora, Polo da Mitra, Ap. 94, 7006-554, Évora, Portugal
| | | | - António Marcos Ramos
- Centro de Biotecnologia Agrícola E Agro-Alimentar Do Alentejo (CEBAL)/ Instituto Politécnico de Beja (IPBeja), 7801-908, Beja, Portugal
- MED - Mediterranean Institute for Agriculture, Environment and Development and CHANGE - Global Change and Sustainability Institute, CEBAL - Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo, 7801-908, Beja, Portugal
| | - Elisa Bettencourt
- MED-Mediterranean Institute for Agriculture, Environment and Development and CHANGE - Global Change and Sustainability Institute, University of Évora, Polo da Mitra, Ap. 94, 7006-554, Évora, Portugal
| | - Ana Usié
- Centro de Biotecnologia Agrícola E Agro-Alimentar Do Alentejo (CEBAL)/ Instituto Politécnico de Beja (IPBeja), 7801-908, Beja, Portugal.
- MED - Mediterranean Institute for Agriculture, Environment and Development and CHANGE - Global Change and Sustainability Institute, CEBAL - Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo, 7801-908, Beja, Portugal.
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Krishnappa M, Abraham S, Furtado SC, Krishnamurthy S, Rifaya A, Asiri YI, Chidambaram K, Pavadai P. An Integrated Computational and Experimental Approach to Formulate Tamanu Oil Bigels as Anti-Scarring Agent. Pharmaceuticals (Basel) 2024; 17:102. [PMID: 38256935 PMCID: PMC10818744 DOI: 10.3390/ph17010102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/25/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Tamanu oil has traditionally been used to treat various skin problems. The oil has wound-healing and skin-regenerating capabilities and encourages the growth of new skin cells, all of which are helpful for fading scars and hyperpigmentation, as well as promoting an all-around glow. The strong nutty odor and high viscosity are the major disadvantages associated with its application. The aim of this study was to create bigels using tamanu oil for its anti-scarring properties and predict the possible mechanism of action through the help of molecular docking studies. In silico studies were performed to analyze the binding affinity of the protein with the drug, and the anti-scarring activity was established using a full-thickness excision wound model. In silico studies revealed that the components inophyllum C, 4-norlanosta-17(20),24-diene-11,16-diol-21-oic acid, 3-oxo-16,21-lactone, calanolide A, and calophyllolide had docking scores of -11.3 kcal/mol, -11.1 kcal/mol, -9.8 kcal/mol, and -8.6 kcal/mol, respectively, with the cytokine TGF-β1 receptor. Bigels were prepared with tamanu oil ranging from 5 to 20% along with micronized xanthan gum and evaluated for their pH, viscosity, and spreadability. An acute dermal irritation study in rabbits showed no irritation, erythema, eschar, or edema. In vivo excisional wound-healing studies performed on Wistar rats and subsequent histopathological studies showed that bigels had better healing properties when compared to the commercial formulation (MurivennaTM oil). This study substantiates the wound-healing and scar reduction potential of tamanu oil bigels.
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Affiliation(s)
- Megha Krishnappa
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, Bengaluru 56054, Karnataka, India; (M.K.); (S.C.F.); (S.K.)
| | - Sindhu Abraham
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, Bengaluru 56054, Karnataka, India; (M.K.); (S.C.F.); (S.K.)
| | - Sharon Caroline Furtado
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, Bengaluru 56054, Karnataka, India; (M.K.); (S.C.F.); (S.K.)
| | - Shwetha Krishnamurthy
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, Bengaluru 56054, Karnataka, India; (M.K.); (S.C.F.); (S.K.)
| | - Aynul Rifaya
- Department of Chemical Engineering, Erode Sengunther Engineering College, Erode 638057, Tamil Nadu, India;
| | - Yahya I. Asiri
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha 61421, Asir Province, Saudi Arabia;
| | - Kumarappan Chidambaram
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha 61421, Asir Province, Saudi Arabia;
| | - Parasuraman Pavadai
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, Bengaluru 560054, Karnataka, India
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Patil N, Wairkar S. Chitosan and α-cellulose-based mupirocin topical film-forming spray: Optimization, in vitro characterization, antimicrobial studies and wound healing activity. Int J Biol Macromol 2024; 254:127622. [PMID: 37890752 DOI: 10.1016/j.ijbiomac.2023.127622] [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: 05/11/2023] [Revised: 10/16/2023] [Accepted: 10/21/2023] [Indexed: 10/29/2023]
Abstract
The study aimed to develop a biopolymer-based mupirocin film-forming spray (MUP-FFS) for wound healing using chitosan and α-cellulose. MUP-FFS formulation was optimized by box-Behnken design, wherein the amount of chitosan, glycerol, and microfluidizer cycles showed a significant effect on the drying time and sprayability, but drug release remained unaffected. The optimized MUP-FFS formulation prepared by 13 microfluidizer cycles containing chitosan (0.125 %), glycerol (2.76 %) was quickly sprayable with 235 s drying time. The viscosity, spray uniformity and occlusive potential were found optimum for MUP-FFS. MUP-FFS released 98.066 % of MUP, 2-fold and 4-fold greater than the marketed ointment and MUP-API. The transmission electron microscopy displayed a homogeneous fibrous network, and scanning electron microphotographs showed uniform drug distribution on the MUP-film surface. The antimicrobial study revealed the efficacy of MUP-FFS against S.aureus and E.coli, wherein the former was more susceptible to formulation than the later. MUP-FFS indicated better wound contraction and healing than other groups on 7th and 14th day in rats. On Day-21, MUP-FFS could regress TGF-β1 to a normal level similar to the marketed formulation, which was also reflected in histopathological observations. Therefore, MUP-FFS can be a treatment option for chronic wounds, applied without touch and with minimal mechanical pressure.
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Affiliation(s)
- Nikhil Patil
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKMs NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai, Maharashtra 400056, India
| | - Sarika Wairkar
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKMs NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai, Maharashtra 400056, India.
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Ramakrishnan P, Joshi A, Fazil M, Yadav P. A comprehensive review on therapeutic potentials of photobiomodulation for neurodegenerative disorders. Life Sci 2024; 336:122334. [PMID: 38061535 DOI: 10.1016/j.lfs.2023.122334] [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: 10/07/2023] [Revised: 12/02/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023]
Abstract
A series of experimental trials over the past two centuries has put forth Photobiomodulation (PBM) as a treatment modality that utilizes colored lights for various conditions. While in its cradle, PBM was used for treating simple conditions such as burns and wounds, advancements in recent years have extended the use of PBM for treating complex neurodegenerative diseases (NDDs). PBM has exhibited the potential to curb several symptoms and signs associated with NDDs. While several of the currently used therapeutics cause adverse side effects alongside being highly invasive, PBM on the contrary, seems to be broad-acting, less toxic, and non-invasive. Despite being projected as an ideal therapeutic for NDDs, PBM still isn't considered a mainstream treatment modality due to some of the challenges and knowledge gaps associated with it. Here, we review the advantages of PBM summarized above with an emphasis on the common mechanisms that underlie major NDDs and how PBM helps tackle them. We also discuss important questions such as whether PBM should be considered a mainstay treatment modality for these conditions and if PBM's properties can be harnessed to develop prophylactic therapies for high-risk individuals and also highlight important animal studies that underscore the importance of PBM and the challenges associated with it. Overall, this review is intended to bring the major advances made in the field to the spotlight alongside addressing the practicalities and caveats to develop PBM as a major therapeutic for NDDs.
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Affiliation(s)
- Pooja Ramakrishnan
- Fly Laboratory # 210, Anusandhan Kendra-II, School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur 613401, Tamil Nadu, India.
| | - Aradhana Joshi
- Fly Laboratory # 210, Anusandhan Kendra-II, School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur 613401, Tamil Nadu, India.
| | - Mohamed Fazil
- Fly Laboratory # 210, Anusandhan Kendra-II, School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur 613401, Tamil Nadu, India; School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur 613401, Tamil Nadu, India
| | - Pankaj Yadav
- Fly Laboratory # 210, Anusandhan Kendra-II, School of Chemical & Biotechnology, SASTRA Deemed to be University, Thanjavur 613401, Tamil Nadu, India.
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Melamed E, Borkow G. Continuum of care in hard-to-heal wounds by copper dressings: a case series. J Wound Care 2023; 32:788-796. [PMID: 38060415 DOI: 10.12968/jowc.2023.32.12.788] [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] [Indexed: 12/18/2023]
Abstract
OBJECTIVE The quest for an ideal wound dressing has been a longstanding challenge due to the complex nature of wound healing, including stages of haemostasis, inflammation, maturation and remodelling, with overlapping timelines. This makes it difficult to find a single dressing that optimally supports all phases of wound healing. In addition, the ideal wound dressing should possess antibacterial properties and be capable of effectively debriding and lysing necrotic tissue. Copper is an essential trace element that participates in many of the key physiological wound healing processes. METHOD Copper stimulates secretion of various cytokines and growth factors, thus promoting angiogenesis, granulation tissue formation, extracellular matrix proteins secretion and re-epithelialisation. Harnessing this knowledge, we have used copper oxide-impregnated wound dressings in numerous cases and observed their benefits throughout the entire wound healing process. RESULTS This led us to postulate the 'continuum of care' hypothesis of copper dressings. In this study we describe four cases of hard-to-heal wounds of various aetiologies, in which we applied copper dressings consistently across all stages of wound healing, with rapid uneventful healing. CONCLUSION We believe we have successfully implemented the continuum of care principle.
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Affiliation(s)
- Eyal Melamed
- Foot and Ankle Service, Department of Orthopaedics, Rambam Health Care Campus, Haifa 3109601, Israel
| | - Gadi Borkow
- The Skin Research Institute, The Dead-Sea & Arava Science Center, Masada 8693500, Israel
- MedCu Technologies Ltd., Herzliya 4672200, Israel
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Noh CH, Park S, Seong HR, Lee AY, Tsolmon KE, Geum D, Hong SC, Kim TM, Choi EK, Kim YB. An Exosome-Rich Conditioned Medium from Human Amniotic Membrane Stem Cells Facilitates Wound Healing via Increased Reepithelization, Collagen Synthesis, and Angiogenesis. Cells 2023; 12:2698. [PMID: 38067126 PMCID: PMC10705799 DOI: 10.3390/cells12232698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 11/17/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
Tissue regeneration is an essential requirement for wound healing and recovery of organs' function. It has been demonstrated that wound healing can be facilitated by activating paracrine signaling mediated by exosomes secreted from stem cells, since exosomes deliver many functional molecules including growth factors (GFs) and neurotrophic factors (NFs) effective for tissue regeneration. In this study, an exosome-rich conditioned medium (ERCM) was collected from human amniotic membrane stem cells (AMSCs) by cultivating the cells under a low oxygen tension (2% O2 and 5% CO2). The contents of GFs and NFs including keratinocyte growth factor, epidermal growth factor, fibroblast growth factor 1, transforming growth factor-β, and vascular endothelial growth factor responsible for skin regeneration were much higher (10-30 folds) in the ERCM than in normal conditioned medium (NCM). In was found that CM-DiI-labeled exosomes readily entered keratinocytes and fibroblasts, and that ERCM not only facilitated the proliferation of keratinocytes in normal condition, but also protected against H2O2 cytotoxicity. In cell-migration assay, the scratch wound in keratinocyte culture dish was rapidly closed by treatment with ERCM. Such wound-healing effects of ERCM were confirmed in a rat whole skin-excision model: i.e., the wound closure was significantly accelerated, remaining minimal crusts, by topical application of ERCM solution (4 × 109 exosome particles/100 μL) at 4-day intervals. In the wounded skin, the deposition of collagens was enhanced by treatment with ERCM, which was supported by the increased production of collagen-1 and collagen-3. In addition, enhanced angiogenesis in ERCM-treated wounds was confirmed by increased von Willebrand factor (vWF)-positive endothelial cells. The results indicate that ERCM from AMSCs with high concentrations of GFs and NFs improves wound healing through tissue regeneration not only by facilitating keratinocyte proliferation for skin repair, but also activating fibroblasts for extracellular matrix production, in addition to the regulation of angiogenesis and scar tissue formation.
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Affiliation(s)
- Chan Ho Noh
- College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea
- Central Research Institute, Designed Cells Co., Ltd., Cheongju 28576, Republic of Korea
| | - Sangryong Park
- Central Research Institute, Designed Cells Co., Ltd., Cheongju 28576, Republic of Korea
| | - Hye-Rim Seong
- Central Research Institute, Designed Cells Co., Ltd., Cheongju 28576, Republic of Korea
| | - Ah-Young Lee
- Central Research Institute, Designed Cells Co., Ltd., Cheongju 28576, Republic of Korea
| | - Khan-Erdene Tsolmon
- College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Dongho Geum
- Department of Biomedical Science, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Soon-Cheol Hong
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Tae Myoung Kim
- Central Research Institute, Designed Cells Co., Ltd., Cheongju 28576, Republic of Korea
| | - Ehn-Kyoung Choi
- Central Research Institute, Designed Cells Co., Ltd., Cheongju 28576, Republic of Korea
| | - Yun-Bae Kim
- College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea
- Central Research Institute, Designed Cells Co., Ltd., Cheongju 28576, Republic of Korea
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Talei B, Ziai H. PHAT Lips and PHAT Face: Platelet Hybridized Adipose Therapy for Superficial Musculoaponeurotic System and Dermal Rejuvenation. Facial Plast Surg 2023. [PMID: 37816491 DOI: 10.1055/a-2188-8608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023] Open
Abstract
Platelet-rich plasma has been increasingly used for facial rejuvenation in conjunction with other modalities such as microneedling or on its own. Nanofat grafting to the face has also been utilized for skin quality improvements. Our group previously described the novel combined Platelet Hybridized Adipose Transplant (PHAT) technique for hair restoration. In this series, we describe our experience with the PHAT technique for lip and facial rejuvenation to improve the quality of facial skin and superficial musculoaponeurotic system, and enhancing surgical results.
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Affiliation(s)
- Benjamin Talei
- Beverly Hills Center for Facial Plastic Surgery, Beverly Hills, California
| | - Hedyeh Ziai
- Beverly Hills Center for Facial Plastic Surgery, Beverly Hills, California
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Gujju R, Dewanjee S, Singh K, Andugulapati SB, Tirunavalli SK, Jaina VK, Kandimalla R, Misra S, Puvvada N. Carbon Dots' Potential in Wound Healing: Inducing M2 Macrophage Polarization and Demonstrating Antibacterial Properties for Accelerated Recovery. ACS APPLIED BIO MATERIALS 2023; 6:4814-4827. [PMID: 37886889 DOI: 10.1021/acsabm.3c00578] [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] [Indexed: 10/28/2023]
Abstract
Bacterial infections and persistent inflammation can impede the intrinsic healing process of wounds. To combat this issue, researchers have delved into the potential use of carbon dots (CDs) in the regulation of inflammation and counteract infections. These CDs were synthesized using a microwave-assisted hydrothermal process and have demonstrated outstanding antibacterial and antibiofilm properties against Gram-positive and Gram-negative bacteria. Additionally, CDs displayed biocompatibility at therapeutic concentrations and the ability to specifically target mitochondria. CD treatment effectively nullified lipopolysaccharide-triggered reactive oxygen species production by macrophages, while simultaneously promoting macrophage polarization toward an anti-inflammatory phenotype (M2), leading to a reduction in inflammation and an acceleration in wound healing. In vitro scratch assays also revealed that CDs facilitated the tissue-repairing process by stimulating epithelial cell migration during reepithelialization. In vivo studies using CDs topically applied to lipopolysaccharide (LPS)-stimulated wounds in C57/BL6 mice demonstrated significant improvements in wound healing due to enhanced fibroblast proliferation, angiogenesis, and collagen deposition. Crucially, histological investigations showed no indications of systemic toxicity in vital organs. Collectively, the application of CDs has shown immense potential in speeding up the wound-healing process by regulating inflammation, preventing bacterial infections, and promoting tissue repair. These results suggest that further clinical translation of CDs should be considered.
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Affiliation(s)
- Rajesh Gujju
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Saikat Dewanjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Kamini Singh
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Centre for Natural Products & Traditional Knowledge, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500007, India
| | - Sai Balaji Andugulapati
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Satya Krishna Tirunavalli
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vinod Kumar Jaina
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ramesh Kandimalla
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Department of Biochemistry, Kakatiya Medical College, Warangal, Telangana 506007, India
| | - Sunil Misra
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Nagaprasad Puvvada
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Department of Chemistry, School of Advanced Science, VIT-AP University, Amaravati, Andhra Pradesh 522237, India
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Ghahremani-Nasab M, Akbari-Gharalari N, Rahmani Del Bakhshayesh A, Ghotaslou A, Ebrahimi-Kalan A, Mahdipour M, Mehdipour A. Synergistic effect of chitosan-alginate composite hydrogel enriched with ascorbic acid and alpha-tocopherol under hypoxic conditions on the behavior of mesenchymal stem cells for wound healing. Stem Cell Res Ther 2023; 14:326. [PMID: 37953287 PMCID: PMC10642036 DOI: 10.1186/s13287-023-03567-2] [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: 06/25/2023] [Accepted: 11/08/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND In regenerative medicine, especially skin tissue engineering, the focus is on enhancing the quality of wound healing. Also, several constructs with different regeneration potentials have been used for skin tissue engineering. In this study, the regenerative properties of chitosan-alginate composite hydrogels in skin wound healing under normoxic and hypoxic conditions were investigated in vitro. METHODS The ionic gelation method was used to prepare chitosan/alginate (CA) hydrogel containing CA microparticles and bioactive agents [ascorbic acid (AA) and α-tocopherol (TP)]. After preparing composite hydrogels loaded with AA and TP, the physicochemical properties such as porosity, pore size, swelling, weight loss, wettability, drug release, and functional groups were analyzed. Also, the hemo-biocompatibility of composite hydrogels was evaluated by a hemolysis test. Then, the rat bone marrow mesenchymal stem cells (rMSCs) were seeded onto the hydrogels after characterization by flow cytometry. The survival rate was analyzed using MTT assay test. The hydrogels were also investigated by DAPI and H&E staining to monitor cell proliferation and viability. To induce hypoxia, the cells were exposed to CoCl2. To evaluate the regenerative potential of rMSCs cultured on CA/AA/TP hydrogels under hypoxic conditions, the expression of the main genes involved in the healing of skin wounds, including HIF-1α, VEGF-A, and TGF-β1, was investigated by real-time PCR. RESULTS The results demonstrated that the prepared composite hydrogels were highly porous, with interconnected pores that ranged in sizes from 20 to 188 μm. The evaluation of weight loss showed that the prepared hydrogels have the ability to biodegrade according to the goals of wound healing. The reduction percentage of CA/AA/TP mass in 21 days was reported as 21.09 ± 0.52%. Also, based on wettability and hemolysis tests of the CA/AA/TP, hydrophilicity (θ = 55.6° and 53.7°) and hemocompatibility with a hemolysis ratio of 1.36 ± 0.19 were evident for them. Besides, MTT assay, DAPI, and H&E staining also showed that the prepared hydrogels provide a suitable substrate for cell growth and proliferation. Finally, based on real-time PCR, increased expression levels of VEGF and TGF-β1 were observed in rMSCs in hypoxic conditions cultured on the prepared hydrogels. CONCLUSIONS In conclusion, this study provides evidence that 3D CA/AA/TP composite hydrogels seeded by rMSCs in hypoxic conditions have great potential to improve wound healing.
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Affiliation(s)
- Maryam Ghahremani-Nasab
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Naeimeh Akbari-Gharalari
- Department of Neurosciences and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Azizeh Rahmani Del Bakhshayesh
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Armita Ghotaslou
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abbas Ebrahimi-Kalan
- Department of Neurosciences and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Mahdipour
- Stem Cell Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahmad Mehdipour
- Department of Tissue Engineering, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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Lim JJ, Reginald K, Say YH, Liu MH, Chew FT. Dietary Protein Intake and Associated Risks for Atopic Dermatitis, Intrinsic Eczema, and Allergic Sensitization among Young Chinese Adults in Singapore/Malaysia: Key Findings from a Cross-sectional Study. JID INNOVATIONS 2023; 3:100224. [PMID: 37731471 PMCID: PMC10507652 DOI: 10.1016/j.xjidi.2023.100224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 09/22/2023] Open
Abstract
Through an investigator-administered questionnaire that follows the standard protocol of the International Study of Allergy and Asthma in Childhood, data on symptomatic histories of eczema and dietary habits were collected from 11,494 young Chinese adults in Singapore/Malaysia. Allergic sensitization status was assessed through a skin prick test reactivity to common house dust mites. Using three dietary indices (dietary protein score, animal protein score, and plant protein score), the associations between atopic dermatitis, intrinsic eczema, allergic sensitization, and intake of various proteins were estimated. On average, most subjects frequently eat meat, vegetables, and rice in their diets. Through a multivariable logistic regression adjusted for age, sex, body mass index, and parental eczema, subjects with high dietary protein score (adjusted OR = 1.397; 95% confidence interval = 1.133-1.724; P < 0.003) and high animal protein score (adjusted OR = 1.353; 95% confidence interval = 1.106-1.682; P < 0.003) were associated with increased risk of atopic dermatitis. Interestingly, synergy factor analysis revealed that a higher intake of plant proteins than animal proteins in diets significantly reduced overall associated risks of atopic dermatitis and allergic sensitization but not those of intrinsic eczema. Most importantly, these associations are independent of dietary fat intake. Taken together, frequent adherence to diets rich in plant proteins reduced associated risks of atopic dermatitis in Singapore/Malaysia Chinese adults.
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Affiliation(s)
- Jun Jie Lim
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Kavita Reginald
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, Selangor, Malaysia
| | - Yee-How Say
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, Selangor, Malaysia
- Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR), Perak, Malaysia
| | - Mei Hui Liu
- Department of Food Science & Technology, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
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Chakraborty N, Jha D, Singh VP, Kumar P, Verma NK, Gautam HK, Roy I. White-Light-Responsive Prussian Blue Nanophotonic Particles for Effective Eradication of Bacteria and Improved Healing of Infected Cutaneous Wounds. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37899589 DOI: 10.1021/acsami.3c09516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
The increasing burden of cutaneous wound infections with drug-resistant bacteria underlines the dire need for novel treatment approaches. Here, we report the preparation steps, characterization, and antibacterial efficacy of novel chitosan-coated Prussian blue nanoparticles loaded with the photosensitizer fluorescein isothiocyanate-dextran (CHPB-FD). With excellent photothermal and photodynamic properties, CHPB-FD nanoparticles can effectively eradicate both Gram-positive methicillin-resistant Staphylococcus aureus and Gram-negative Pseudomonas aeruginosa in vitro and in vivo. The antibacterial efficacy of CHPB-FD nanophotonic particles further increases in the presence of white light. Using a bacteria-infected cutaneous wound rat model, we demonstrate that CHPB-FD particles upregulate genes involved in tissue remodeling, promote collagen deposition, reduce unwanted inflammation, and enhance healing. The light-responsive CHPB-FD nanophotonic particles can, therefore, be potentially used as an economical and safe alternative to antibiotics for effectively decontaminating skin wounds and for disinfecting biomedical equipment and surfaces in hospitals and other places.
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Affiliation(s)
- Nayanika Chakraborty
- Department of Chemistry, University of Delhi, New Delhi 110007, India
- Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi 110025, India
| | - Diksha Jha
- Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi 110025, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Vijay Pal Singh
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi 110007, India
| | - Pradeep Kumar
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi 110007, India
| | - Navin Kumar Verma
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, 11 Mandalay Road, Singapore 308232, Singapore
- National Skin Centre, 1 Mandalay Road, Singapore 308205, Singapore
- Skin Research Institute of Singapore, Clinical Sciences Building, 11 Mandalay Road, Singapore 308232, Singapore
| | - Hemant Kumar Gautam
- Department of Immunology and Infectious Disease Biology, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi 110025, India
| | - Indrajit Roy
- Department of Chemistry, University of Delhi, New Delhi 110007, India
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Olumesi KR, Goldberg DJ. A review of exosomes and their application in cutaneous medical aesthetics. J Cosmet Dermatol 2023; 22:2628-2634. [PMID: 37498301 DOI: 10.1111/jocd.15930] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/28/2023]
Abstract
BACKGROUND Exosomes have gained recent popularity in aesthetic medicine; however, there is still a dearth of understanding on the etiology of exosomes, their physiologic function, and regenerative capabilities. OBJECTIVE The purpose of this article is to summarize some of the physiologic functions of exosomes, their mechanistic role, and current commercial landscape in regenerative aesthetics. METHODS A Medline search was conducted with the keywords, exosomes, extracellular vesicles, stem cells, skin rejuvenation, and cutaneous aesthetics. MeSH term "exosomes" filtered by relevant subheadings was also utilized. Pertinent original articles encompassing animal studies, cell studies, and human studies were included. We restricted to articles published in the last 10 years. RESULTS Pre-clinical studies have demonstrated the therapeutic capabilities of exosomes in wound healing, scar modulation, alopecia, and skin rejuvenation. Exosomes primarily exert their effects in a paracrine function and modulate the interactions between keratinocytes and other cells of the skin. Exogenous exosomes can be utilized in a variety of settings to bring about desired aesthetic outcomes and to date, has only been approved for topical administration. CONCLUSION The safety, efficacy, potency, and dosages of exosomes remains to be determined via robust human clinical trials. Isolation and purification techniques have yet to be standardized, and this would be required for regulatory approval of all delivery modes. Overall, exosomes deliver yet another therapeutic option in regenerative aesthetics.
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Affiliation(s)
- Kehinde Raji Olumesi
- Skin Laser and Surgery Specialists- A Division of Schweiger Dermatology Group, Hackensack, New Jersey, USA
| | - David J Goldberg
- Skin Laser and Surgery Specialists- A Division of Schweiger Dermatology Group, Hackensack, New Jersey, USA
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Ademi H, Michalak-Micka K, Moehrlen U, Biedermann T, Klar AS. Effects of an Adipose Mesenchymal Stem Cell-Derived Conditioned medium and TGF-β1 on Human Keratinocytes In Vitro. Int J Mol Sci 2023; 24:14726. [PMID: 37834173 PMCID: PMC10572767 DOI: 10.3390/ijms241914726] [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: 08/16/2023] [Revised: 09/06/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Human keratinocytes play a crucial role during skin wound healing and in skin replacement therapies. The secretome of adipose-derived stem cells (ASCs) has been shown to secrete pro-healing factors, among which include TGF-β1, which is essential for keratinocyte migration and the re-epithelialization of cutaneous wounds during skin wound healing. The benefits of an ASC conditioned medium (ASC-CM) are primarily orchestrated by trophic factors that mediate autocrine and paracrine effects in keratinocytes. Here, we evaluated the composition and the innate characteristics of the ASC secretome and its biological effects on keratinocyte maturation and wound healing in vitro. In particular, we detected high levels of different growth factors, such as HGF, FGFb, and VEGF, and other factors, such as TIMP1 and 4, IL8, PAI-1, uPA, and IGFBP-3, in the ASC-CM. Further, we investigated, using immunofluorescence and flow cytometry, the distinct effects of a human ASC-CM and/or synthetic TGF-β1 on human keratinocyte proliferation, migration, and cell apoptosis suppression. We demonstrated that the ASC-CM increased keratinocyte proliferation as compared to TGF-β1 treatment. Further, we found that the ASC-CM exerted cell cycle progression in keratinocytes via regulating the phases G1, S, and G2/M. In particular, cells subjected to the ASC-CM demonstrated increased DNA synthesis (S phase) compared to the TGF-β1-treated KCs, which showed a pronounced G0/G1 phase. Furthermore, both the ASC-CM and TGF-β1 conditions resulted in a decreased expression of the late differentiation marker CK10 in human keratinocytes in vitro, whereas both treatments enhanced transglutaminase 3 and loricrin expression. Interestingly, the ASC-CM promoted significantly increased numbers of keratinocytes expressing epidermal basal keratinocyte markers, such DLL1 and Jagged2 Notch ligands, whereas those ligands were significantly decreased in TGF-β1-treated keratinocytes. In conclusion, our findings suggest that the ASC-CM is a potent stimulator of human keratinocyte proliferation in vitro, particularly supporting basal keratinocytes, which are crucial for a successful skin coverage after transplantation. In contrast, TGF-β1 treatment decreased keratinocyte proliferation and specifically increased the expression of differentiation markers in vitro.
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Affiliation(s)
- Hyrije Ademi
- Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, 8952 Schlieren, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, 8032 Zurich, Switzerland
- Faculty of Medicine, University of Zurich, 8032 Zurich, Switzerland
| | - Katarzyna Michalak-Micka
- Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, 8952 Schlieren, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, 8032 Zurich, Switzerland
- Faculty of Medicine, University of Zurich, 8032 Zurich, Switzerland
| | - Ueli Moehrlen
- Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, 8952 Schlieren, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, 8032 Zurich, Switzerland
- Faculty of Medicine, University of Zurich, 8032 Zurich, Switzerland
- Department of Surgery, University Children’s Hospital Zurich, 8032 Zurich, Switzerland
| | - Thomas Biedermann
- Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, 8952 Schlieren, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, 8032 Zurich, Switzerland
- Faculty of Medicine, University of Zurich, 8032 Zurich, Switzerland
| | - Agnes S. Klar
- Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital Zurich, 8952 Schlieren, Switzerland
- Children’s Research Center, University Children’s Hospital Zurich, 8032 Zurich, Switzerland
- Faculty of Medicine, University of Zurich, 8032 Zurich, Switzerland
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50
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Sawaya AP, Vecin NM, Burgess JL, Ojeh N, DiBartolomeo G, Stone RC, Pastar I, Tomic-Canic M. Calreticulin: a multifunctional protein with potential therapeutic applications for chronic wounds. Front Med (Lausanne) 2023; 10:1207538. [PMID: 37692787 PMCID: PMC10484228 DOI: 10.3389/fmed.2023.1207538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 08/07/2023] [Indexed: 09/12/2023] Open
Abstract
Calreticulin is recognized as a multifunctional protein that serves an essential role in diverse biological processes that include wound healing, modification and folding of proteins, regulation of the secretory pathway, cell motility, cellular metabolism, protein synthesis, regulation of gene expression, cell cycle regulation and apoptosis. Although the role of calreticulin as an endoplasmic reticulum-chaperone protein has been well described, several studies have demonstrated calreticulin to be a highly versatile protein with an essential role during wound healing. These features make it an ideal molecule for treating a complex, multifactorial diseases that require fine tuning, such as chronic wounds. Indeed, topical application of recombinant calreticulin to wounds in multiple models of wound healing has demonstrated remarkable pro-healing effects. Among them include enhanced keratinocyte and fibroblast migration and proliferation, induction of extracellular matrix proteins, recruitment of macrophages along with increased granulation tissue formation, all of which are important functions in promoting wound healing that are deregulated in chronic wounds. Given the high degree of diverse functions and pro-healing effects, application of exogenous calreticulin warrants further investigation as a potential novel therapeutic option for chronic wound patients. Here, we review and highlight the significant effects of topical application of calreticulin on enhancing wound healing and its potential as a novel therapeutic option to shift chronic wounds into healing, acute-like wounds.
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Affiliation(s)
- Andrew P. Sawaya
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Nicole M. Vecin
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Jamie L. Burgess
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Nkemcho Ojeh
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
- Faculty of Medical Sciences, The University of the West Indies, Bridgetown, Barbados
| | - Gabrielle DiBartolomeo
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Rivka C. Stone
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Irena Pastar
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Marjana Tomic-Canic
- Wound Healing and Regenerative Medicine Research Program, Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
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