Wound Repair and Regeneration最新文献

{"title":"Utilizing multiscale engineered biomaterials to examine TGF-β-mediated myofibroblastic differentiation.","authors":"Aryssa Simpson, Abhichart Krissanaprasit, Daniel Chester, Cynthia Koehler, Thomas H LaBean, Ashley C Brown","doi":"10.1111/wrr.13168","DOIUrl":"10.1111/wrr.13168","url":null,"abstract":"<p><p>Cells integrate many mechanical and chemical cues to drive cell signalling responses. Because of the complex nature and interdependency of alterations in extracellular matrix (ECM) composition, ligand density, mechanics, and cellular responses it is difficult to tease out individual and combinatorial contributions of these various factors in driving cell behavior in homeostasis and disease. Tuning of material viscous and elastic properties, and ligand densities, in combinatorial fashions would enhance our understanding of how cells process complex signals. For example, it is known that increased ECM mechanics and transforming growth factor beta (TGF-β) receptor (TGF-β-R) spacing/clustering independently drive TGF-β signalling and associated myofibroblastic differentiation. However, it remains unknown how these inputs orthogonally contribute to cellular outcomes. Here, we describe the development of a novel material platform that combines microgel thin films with controllable viscoelastic properties and DNA origami to probe how viscoelastic properties and nanoscale spacing of TGF-β-Rs contribute to TGF-β signalling and myofibroblastic differentiation. We found that highly viscous materials with non-fixed TGF-β-R spacing promoted increased TGF-β signalling and myofibroblastic differentiation. This is likely due to the ability of cells to better cluster receptors on these surfaces. These results provide insight into the contribution of substrate properties and receptor localisation on downstream signalling. Future studies allow for exploration into other receptor-mediated processes.</p>","PeriodicalId":23864,"journal":{"name":"Wound Repair and Regeneration","volume":" ","pages":"234-245"},"PeriodicalIF":3.8,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11111354/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140068777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a double-layer electrospun patch as a potential prenatal treatment for myelomeningocele.","authors":"K Benabdderrahmane, J Stirnemann, S Ramtani, C Falentin-Daudré","doi":"10.1111/wrr.13123","DOIUrl":"10.1111/wrr.13123","url":null,"abstract":"<p><p>Myelomeningocele (MMC) is a congenital defect of the spine characterised by meningeal and spinal cord protrusion through the open vertebral arches. This defect causes progressive prenatal damage of the spinal cord, leading to lifelong handicap. Although mid-trimester surgical repair may reduce part of the handicap, an earlier and less invasive approach would further improve the prognosis, possibly minimising maternal and foetal risks. Several studies have proposed an alternative approach to surgical repair by covering the defect with a patch and protecting the exposed neural tissue. Our study aims to elaborate on a waterproof and biodegradable bioactive patch for MMC prenatal foetal repair. We developed a double-layer patch that can provide a waterproof coverage for the spinal cord, with a bioactive side, conducive to cell proliferation, and an antiadhesive side to avoid its attachment to the medulla.</p>","PeriodicalId":23864,"journal":{"name":"Wound Repair and Regeneration","volume":" ","pages":"246-256"},"PeriodicalIF":3.8,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92156864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Progress in copper-based materials for wound healing.","authors":"Wuliang Diao, Peiting Li, Xilin Jiang, Jianda Zhou, Songbo Yang","doi":"10.1111/wrr.13122","DOIUrl":"10.1111/wrr.13122","url":null,"abstract":"<p><p>Chronic wounds have become the leading cause of death, particularly among diabetic patients. Chronic wounds affect ~6.5 million patients each year, according to statistics, and wound care and management incur significant financial costs. The rising prevalence of chronic wounds, combined with the limitations of current treatments, necessitates the development of new and innovative approaches to accelerate wound healing. Copper has been extensively studied for its antibacterial and anti-inflammatory activities. Copper in its nanoparticle form could have better biological properties and many applications in health care.</p>","PeriodicalId":23864,"journal":{"name":"Wound Repair and Regeneration","volume":" ","pages":"314-322"},"PeriodicalIF":3.8,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41214476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dysfunctional iron metabolism in pressure injuries is related to aberrant CD163 and Homx-1 signal transduction.","authors":"Ju Zhang, Hui Shan, Jinglin Guo, Xiaoying Wang, Weiwei Wang","doi":"10.1111/wrr.13145","DOIUrl":"10.1111/wrr.13145","url":null,"abstract":"<p><p>Dysregulation of iron metabolism has been associated with impaired chronic wound healing. However, changes in iron metabolism have yet to be reported in pressure injuries, a type of chronic wound. In this study, we aimed to investigate changes in iron metabolism and associated regulatory mechanisms in pressure injuries. We collected tissue biopsies and data from 20 consenting stage IV-pressure injuries patients and 5 non-pressure injuries patients hospitalised at the Affiliated Hospital of Qingdao University between March 2021 and June 2021. In addition, we measured the iron content by inductively coupled plasma mass spectrometry and Prussian blue staining in deep tissue pressure injury mouse models. An Enzyme-linked immune sorbent assay measured the expression of ferritin, ferroportin-1 and transferrin. Immunofluorescence staining, high-throughput transcriptome sequencing, Western blot and RT-qPCR further analysed the fundamental mechanisms regulating iron metabolism. In this study, we observed numerous inflammatory cells infiltrating the marginal tissues of stage IV pressure injury patients and in deep tissue pressure injury models. The expression levels of pro-inflammatory factors, such as inducible nitric oxide synthase and interleukin-6, were significantly increased (p < 0.05). The iron level was proportional to the degree of progression, with the most significant change appearing on the third day in deep tissue pressure injury models (p < 0.05). Enzyme-linked immune sorbent assay results suggested abnormal gene expression was related to iron metabolism, including a substantial increase in ferritin and a significant decrease in the expression of ferroportin-1 (p < 0.05). In addition, immunofluorescence staining and Western blot showed that the expression of macrophage membrane receptor CD163 was abnormally elevated (p < 0.05). Both high-throughput transcriptome sequencing and qRT-PCR results suggested aberrant expression of the CD163/Homx-1-mediated signalling pathway. Dysfunctional iron metabolism was suggested to be related to the aberrant CD163/Homx-1 signalling pathway in deep tissue pressure injury models.</p>","PeriodicalId":23864,"journal":{"name":"Wound Repair and Regeneration","volume":" ","pages":"268-278"},"PeriodicalIF":3.8,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139040482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bacterial cellulose as an ideal potential treatment for burn wounds: A comprehensive review.","authors":"Farzaneh Jabbari, Valiollah Babaeipour","doi":"10.1111/wrr.13163","DOIUrl":"10.1111/wrr.13163","url":null,"abstract":"<p><p>Burn wound regeneration is a complex process, which has many serious challenges such as slow wound healing, secondary infection, and inflammation. Therefore, it is essential to utilise appropriate biomaterials to accelerate and guide the wound healing process. Bacterial cellulose (BC), a natural polymer synthesised by some bacteria, has attracted much attention for wound healing applications due to its unique properties including excellent physicochemical and mechanical properties, simple purification process, three-dimensional (3D) network structure similar to extracellular matrix, high purity, high water holding capacity and significant permeability to gas and liquid. BC's lack of antibacterial activity significantly limits its biomedical and tissue engineering application, but adding antimicrobial agents to it remarkably improves its performance in tissue regeneration applications. Burn wound healing is a complex long-lasting process. Using biomaterials in wound treatment has shown that they can satisfactorily accelerate wound healing. The purpose of this review is to elaborate on the importance of BC-based structures as one of the most widely used modern wound dressings in the treatment of burn wounds. In addition, the combination of various drugs, agents, cells and biomolecules with BC to expand its application in burn injury regeneration is discussed. Finally, the main challenges and future development direction of BC-based structures for burn wound repair are considered. The four most popular search engines PubMed/MEDLINE, Science Direct, Scopus and Google Scholar were used to help us find relevant papers. The most frequently used keywords were bacterial cellulose, BC-based biocomposite, wound healing, burn wound and vascular graft.</p>","PeriodicalId":23864,"journal":{"name":"Wound Repair and Regeneration","volume":" ","pages":"323-339"},"PeriodicalIF":3.8,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140040467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The heterogeneous wound microbiome varies with wound care pain, dressing type, and inflammatory gene expression","authors":"Amy Campbell, Jaewon Bae, Maria Hein, Stephen L. Hillis, Olivia N. Rebeck, Barbara A. Rakel, Elizabeth Grice, Sue E. Gardner","doi":"10.1111/wrr.13184","DOIUrl":"https://doi.org/10.1111/wrr.13184","url":null,"abstract":"Wound dressing changes are essential procedures for wound management. However, ~50% of patients experience severe pain during these procedures despite the availability of analgesic medications, indicating a need for novel therapeutics that address underlying causes of pain. Along with other clinical factors, wound pathogens and inflammatory immune responses have previously been implicated in wound pain. To test whether these factors could contribute to severe pain during wound dressing changes, we conducted an exploratory, cross‐sectional analysis of patient‐reported pain, inflammatory immune responses, and wound microbiome composition in 445 wounds at the time of a study dressing change. We profiled the bacterial composition of 406 wounds using 16S ribosomal RNA amplicon sequencing and quantified gene expression of 13 inflammatory markers in wound fluid using quantitative real‐time polymerase chain reaction (qPCR). Neither inflammatory gene expression nor clinically observed inflammation were associated with severe pain, but <jats:italic>Corynebacterium</jats:italic> and <jats:italic>Streptococcus</jats:italic> were of lower relative abundance in wounds of patients reporting severe pain than those reporting little or no pain. Wound microbiome composition differed by wound location, and correlated with six of the inflammatory markers, including complement receptor C5AR1, pro‐inflammatory cytokine interleukin (IL)1β, chemokine IL‐8, matrix metalloproteinase MMP2, and the antimicrobial peptide encoding cathelicidin antimicrobial peptide. Interestingly, we found a relationship between the wound microbiome and vacuum‐assisted wound closure (VAC). These findings identify preliminary, associative relationships between wound microbiota and host factors which motivate future investigation into the directional relationships between wound care pain, wound closure technologies, and the wound microbiome.","PeriodicalId":23864,"journal":{"name":"Wound Repair and Regeneration","volume":"27 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140804091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multimodal imaging device to comprehensively assess infection, oxygenation, and wound analytics—A pilot study","authors":"Rajesh Kesavan, Changam Sheela Sasikumar","doi":"10.1111/wrr.13187","DOIUrl":"https://doi.org/10.1111/wrr.13187","url":null,"abstract":"Wound analytics, infection detection, and oxygenation measurement are the three critical prerequisites for appropriate wound care. Although devices that rapidly detect the above‐mentioned parameters independently exist, there is no single point‐of‐care device that is enabled with all the three functionalities. Through this study, we are introducing and evaluating the performance of Illuminate Pro Max—a novel, rapid, hand‐held non‐contact, point‐of‐care multimodal imaging device that is equipped to measure the three wound assessment parameters. Here, a total of 60 diabetic foot ulcer patients were imaged using Illuminate Pro Max to detect bioburden and measure StO<jats:sub>2</jats:sub> levels and wound dimensions (size and depth). The results were further evaluated against the current gold standard technique for each parameter, that is, culture test to detect bioburden, a transcutaneous oxygen pressure (TcPO<jats:sub>2</jats:sub>) measuring device—Perimed Periflux 5000 to measure oxygenation, and paper ruler to measure wound size. Culture tests reported 42 samples as infection‐positive and 18 samples as infection‐negative. On comparing with the culture report, the device showed 88% sensitivity and 86% PPV in detecting the bioburden. Wound dimensions (length and width) were comparable with the paper scale measurements. Wound depth was also reported by the device. The StO<jats:sub>2</jats:sub> map generated by the device depicted the tissue oxygenation levels in various regions of the wound. In conclusion, this novel, comprehensive point‐of‐care multispectral imaging device can be an effective tool for rapid wound assessment which can help in prompt treatment.","PeriodicalId":23864,"journal":{"name":"Wound Repair and Regeneration","volume":"53 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140804264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dysregulation of miR‐146a is associated with exacerbated inflammation, oxidative and endoplasmic reticulum stress in the progression of diabetic foot ulcer","authors":"Pooja Prathyushaa Vikraman, Karan Amin, Sundhar Mohandas, Dhamodharan Umapathy, Rajesh Kesavan, Kunka Mohanram Ramkumar","doi":"10.1111/wrr.13186","DOIUrl":"https://doi.org/10.1111/wrr.13186","url":null,"abstract":"Recent evidence has implicated the role of microRNA‐146a (miR‐146a) in regulating inflammatory responses. In the present study, we investigated the role of miRNA‐146a in the progression of diabetic foot ulcer (DFU) in type 2 diabetes mellitus patients (T2DM) and studied its correlation with stress mediators such as Endoplasmic Reticulum (ER) and oxidative stress. Ninety subjects were enrolled and evenly distributed among three groups: Controls (<jats:italic>n</jats:italic> = 30), T2DM without complications (<jats:italic>n</jats:italic> = 30) and T2DM with foot ulcers (<jats:italic>n</jats:italic> = 30). Subsequently, each group was further subdivided based on the University of Texas classification. Peripheral blood was collected from all the study subjects, while tissue biopsies were taken only from DFU patients. Total RNA from both PBMCs and wound tissues were isolated using miRNA isolation kit and qPCR was performed to check the expression of miR‐146a, ER stress and oxidative stress markers. Our findings revealed a significant decrease in miR‐146a expression among T2DM patients with Grade 2 and Grade 3 DFUs compared with those with Grade 0 and Grade 1 DFUs. Notably, inflammatory genes regulated by miR‐146a, including TRAF6, IRAK‐1 and ADAM, were all upregulated in T2DM patients with Grade 2 and Grade 3 DFUs. Moreover, reduced miR‐146a levels were correlated with increased markers of ER stress and oxidative stress in Grade 2 and Grade 3 DFU patients. Furthermore, our in vitro experiment using mouse 3T3 fibroblasts demonstrated a downregulation of miR‐146a following induction of hyperglycaemia, ER stress and oxidative stress in these cells. These findings suggest a potential link between diminished miR‐146a expression and heightened oxidative and ER stress in T2DM patients with more severe grades of DFUs. Our results imply that targeting miR‐146a may hold therapeutic promise for managing disease progression in DFU patients, as it could help alleviate oxidative and ER stress associated with diabetic complications.","PeriodicalId":23864,"journal":{"name":"Wound Repair and Regeneration","volume":"45 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140804160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Further psychometric evaluation of the WOUND‐Q: A responsiveness study","authors":"Lucas Gallo, Charlene Rae, Sophocles Voineskos, Nina Vestergaard Simonsen, Andrea L. Pusic, Lotte Poulsen, Jens Ahm Sørensen, Anne F. Klassen, Stefan J. Cano","doi":"10.1111/wrr.13179","DOIUrl":"https://doi.org/10.1111/wrr.13179","url":null,"abstract":"The WOUND‐Q is a modular patient‐reported outcome measure (PROM) with 13 scales measuring constructs across 4 domains (i.e., wound characteristics, health related quality of life, experience of care and wound treatment). The psychometrics of the WOUND‐Q were previously assessed and the 13 scales evidenced good validity and reliability. However, the responsiveness (i.e., ability to detect clinical change) of the WOUND‐Q has yet to be assessed. The objective of this study was to evaluate responsiveness for 9 WOUND‐Q scales that assess outcomes, in a sample of people 18 years of age or older with chronic wounds that were present for at least 3 months. This study conducted a 4 month follow‐up of 421 participants who completed the WOUND‐Q as part of a previous psychometric study. Participants completed an online survey answering questions about their current wound state (e.g., number, type, size, smell, drainage), anchor questions about change, as well as the WOUND‐Q scales that they had completed in their initial assessment. Pre‐defined hypotheses were tested with a 75% acceptance threshold indicating sufficient evidence of responsiveness. Minimally important differences (MIDs) were also calculated using both anchor‐based and distribution‐based methods. Of 390 invited participants, 320 provided responses, ranging in age from 19 to 84 years. Acceptance of hypotheses ranged from 60% to 100%, with only the Symptom scale not meeting the 75% threshold. The findings of this study provide evidence that the WOUND‐Q can validly measure clinical change in patients with chronic wounds.","PeriodicalId":23864,"journal":{"name":"Wound Repair and Regeneration","volume":"112 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140804188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Teleconsulting in wound care: Connecting the primary care to the wound specialist reduces unnecessary referrals","authors":"W. Brekelmans, B. L. S. Borger van der Burg, R. J. Brouwer, J. N. Belo, R. Hoencamp","doi":"10.1111/wrr.13185","DOIUrl":"https://doi.org/10.1111/wrr.13185","url":null,"abstract":"In the Netherlands the primary care (General Practitioner or homecare nurse) encounter a variety of wounds ranging from traumatic to diabetic foot ulcers. According to a recent study 82.4% of the patients with a wound can be treated in a primary setting with the GP as medical supervisor. The remaining 17.6% of patients need more extensive care including advice by a specialised doctor, diagnosis and treatment. Prompt analyses and treatment of underlying causes by specialised doctors in a multidisciplinary setting is necessary for treating patients with complicated wound. This article describes the impact of Electronic Health Consultation on all wounds treated in the primary care. And describes the effect on the duration until referral to the hospital and the influence on the amount of unnecessary referrals to the hospital. All data was collected prospectively from June 2020 until October 2021. The study involved a process where primary care could seek advice from a Wound Physician at the Alrijne Wound Centre through a specialised Electronic Health Consultation. A total of 118 patients were analysed. 41/118 (34.7%) patients required a physical consultation with analysis and treatment in the hospital, after teleconsultation. The remaining 77/118 (65.3%) could be treated in primary care after Electronic Health Consultation. The mean duration of wound existence until Electronic Health Consultation was 39.3 days (range 5–271, SD: 38.5). 3/41 (7.3%) of the referrals were unnecessary. Electronic Health Consultation serves as a valuable and efficient tool for enhancing wound care, ultimately contributing to improved patient management and resource allocation within the healthcare system. This article describes the impact of Electronic Health Consultation on all wounds treated in the primary care and the influence on the duration until referral to the hospital and the influence on the amount of unnecessary referrals to the hospital.","PeriodicalId":23864,"journal":{"name":"Wound Repair and Regeneration","volume":"339 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140804200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}