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Insights into optimizing exosome therapies for acute skin wound healing and other tissue repair

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Frontiers of Medicine 2024年第2期18卷 258-284页

作者： Tianjing Sun Mo Li Qi Liu Anyong Yu Kun Cheng Jianxing Ma Sean Murphy Patrick Michael McNutt Yuanyuan Zhang Department of Emergency Affiliated Hospital of Zunyi Medical UniversityZunyi563003China Department of Nephrology Affiliated Hospital of Zunyi Medical UniversityZunyi563003China Division of Pharmacology and Pharmaceutical Sciences School of PharmacyUniversity of Missouri-Kansas CityKansas CityMO64108USA Department of Biochemistry Wake Forest University School of MedicineWinston-SalemNC27157USA Wake Forest Institute of Regenerative Medicine Wake Forest School of MedicineWinston-SalemNC27109USA

Exosome therapy holds great promise as a novel approach to improve acute skin wound *** review provides a comprehensive overview of the current understanding of exosome biology and its potential applications in acute skin wound healing and ***,small extracellular vesicles secreted by various stem cells,have emerged as potent mediators of intercellular communication and tissue *** advantage of exosome therapy is its ability to avoid potential risks associated with stem cell therapy,such as immune rejection or stem cells differentiating into unwanted cell ***,further research is necessary to optimize exosome therapy,not only in the areas of exosome isolation,characterization,and engineering,but also in determining the optimal dose,timing,administration,and frequency of exosome ***,optimization of exosome therapy is critical for the development of more effective and safer exosome-based therapies for acute skin wound healing and other diseases induced by cancer,ischemia,or *** review provides valuable insights into the potential of exosome therapy and highlights the need for further research to optimize exosome therapy for clinical use.

关键词： exosomes stem cells therapeutic impact skin wound healing

Actively contractible and antibacterial hydrogel for accelerated wound healing

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Nano Research 2024年第8期17卷 7394-7403页

作者： Zhaoxin Ji Ting Wei Jiafei Zhu Jiaying Hu Zhisheng Xiao Boxiong Bai Xinying Lv Yu Miao Muchao Chen Cheng Wang Feng Pan Yang Yang Meng Li Qian Chen Institute of Functional Nano and Soft Materials Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Department of Thoracic Surgery Shanghai Pulmonary HospitalSchool of MedicineTongji UniversityShanghai 200433China Central Laboratory Shanghai Pulmonary HospitalSchool of MedicineTongji UniversityShanghai 200433China School of Materials Science and Engineering Tongji UniversityShanghai 201804China Department of dermatology Shanghai Children’s Medical Center School of MedicineShanghai Jiao Tong UniversityShanghai 200025China

Adhesive hydrogel has drawn great attention for wide applications in wound healing owing to its excellent biocompatibility and lasting ***,traditional adhesive hydrogels only keep the wound moist to promote wound *** is still imperative to fabricate adhesive hydrogels that exhibit efficient antibacterial ability,active driving dynamic wound closure,and reactive oxygen species(ROS)scavenging together with excellent mechanical ***,a novel hydrogel based on poly(N-isopropyl acrylamide)(PNIPAAm),a thermoresponsive polymer,and tannic acid(TA)-Ag nanoparticles(TA-Ag NPs)exhibiting active contraction,tissue adhesion,anti-inflammatory and antibacterial functions was ***-Ag dispersed in the hydrogel not only functioned as the catalyst to polymerize the reaction but also provided additional anti-inflammatory and antibacterial ***,tannic acid containing catechol groups endowed the hydrogel with adhesive *** interestingly,the obtained hydrogel exhibited the thermoresponsive shrinkage ability,which could mechanically drive wound closure due to the presence of PNIPAAm *** vivo mouse full-thickness skin defect model demonstrated that this actively contractible and antibacterial hydrogel is a promising dressing to improve wound healing process by accelerating tissue regeneration and preventing bacterial ***,this multi-functional adhesive hydrogel developed here may provide a new possibility for wound healing.

关键词： anti-inflammatory antibacterial active contraction hydrogel patch wound healing

Biological scaffold as potential platforms for stem cells:Current development and applications in wound healing

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World Journal of Stem Cells 2024年第4期16卷 334-352页

作者： Jie-Yu Xiang Lin Kang Zi-Ming Li Song-Lu Tseng Li-Quan Wang Tian-Hao Li Zhu-Jun Li Jiu-Zuo Huang Nan-Ze Yu Xiao Long Department of Plastic and Reconstructive Surgery Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Biomedical Engineering Facility Institute of Clinical MedicinePeking Union Medical College HospitalChinese Academy of Medical SciencesBeijing 100021China

wound repair is a complex challenge for both clinical practitioners and *** approaches for wound repair have several *** cell-based therapy has emerged as a novel strategy to address this issue,exhibiting significant potential for enhancing wound healing rates,improving wound quality,and promoting skin ***,the use of stem cells in skin regeneration presents several ***,stem cells and biomaterials have been identified as crucial components of the wound-healing *** therapy involving the development of biocompatible scaffolds,accompanying cells,multiple biological factors,and structures resembling the natural extracellular matrix(ECM)has gained considerable *** scaffolds encompass a range of biomaterials that serve as platforms for seeding stem cells,providing them with an environment conducive to growth,similar to that of the *** scaffolds facilitate the delivery and application of stem cells for tissue regeneration and wound *** article provides a comprehensive review of the current developments and applications of biological scaffolds for stem cells in wound healing,emphasizing their capacity to facilitate stem cell adhesion,proliferation,differentiation,and paracrine ***,we identify the pivotal characteristics of the scaffolds that contribute to enhanced cellular activity.

关键词： Stem-cell-based therapy Biological scaffolds wound healing Extracellular matrix mimicry Cellular activities enhancement Scaffold characteristics

Antimicrobial,antibiofilm,angiogenesis,anti-inflammatory,and wound healing activities of zinc nanoparticles green synthesized using Ferula macrecolea extract

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Asian Pacific Journal of Tropical Biomedicine 2024年第6期14卷 259-268页

作者： Sultan F.Alnomasy Department of Medical Laboratories Sciences College of Applied Medical SciencesShaqra UniversityAl-Quwayiyah 19257Saudi Arabia

Objective:To assess the antimicrobial,antibiofilm,anti-inflammatory,angiogenic,and wound healing activities of zinc nanoparticles(ZNPs)green synthesized using Ferula macrecolea ***:The green synthesis was conducted using the precipitation ***,the minimum inhibitory concentration(MIC),minimum bactericidal concentration(MBC),and minimum biofilm inhibition concentration 50%(MBIC50)of ZNPs against Staphylococcus aureus(***)and Pseudomonas aeruginosa(***)were *** effects of ZNPs on the gene expressions of Staphylococcus spp.[intracellular adhesion A(icaA)and D(icaD)]and ***(rhlI and rhlR)were investigated using quantitative real-time *** addition,the effects of ZNPs on wound healing,angiogenesis,and anti-inflammatory markers were ***:The green-synthesized ZNPs demonstrated significant antimicrobial efficacy against *** and *** biofilm formation in *** and *** was also inhibited by ZNPs with MBIC50 values of 3.30μg/mL and 2.08μg/mL,***,ZNPs downregulated the expression of biofilm-related genes icaA,icaD,rhlI,and rhlR in the tested *** also demonstrated promising in vitro wound healing effects by promoting fibroblast cell proliferation and wound closure in a dose-dependent manner.A significant increase in the expression of HLA-G5 and VEGF-A genes as well as a marked decrease in the expression of NF-κB,IL-1β,and TNF-αgenes were observed in cells treated with ZNPs compared to the control group(Pwound-healing effects by inhibiting biofilm formation,inducing angiogenesis,and reducing ***,further studies must be conducted to specify the accurate mechanisms of action and toxicity of ZNPs.

关键词： wound healing Antibacterial Angiogenesis Nanomedicine Ferula macrecolea Inflammation

X-Paste improves wound healing in diabetes via NF-E2-related factor/HO-1 signaling pathway

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World Journal of Diabetes 2024年第6期15卷 1299-1316页

作者： Ming-Wei Du Xin-Lin Zhu Dong-Xing Zhang Xian-Zhen Chen Li-Hua Yang Jin-Zhou Xiao Wen-Jie Fang Xiao-Chun Xue Wei-Hua Pan Wan-Qing Liao Tao Yang Institute of Cardiovascular Disease Shanghai Key Laboratory of Traditional Chinese Clinical MedicineShanghai University of Traditional Chinese MedicineShanghai 200120China Department of Dermatology Shanghai Key Laboratory of Molecular Medical MycologySecond Affiliated Hospital of Naval Medical UniversityShanghai 200003China Department of Dermatology Dongshan HospitalMeizhou 514000Guangdong ProvinceChina Department of Dermatology Central Hospital Affiliated to Shandong First Medical UniversityJinan 250000Shandong ProvinceChina Department of Emergency Naval Hospital of Eastern TheaterZhoushan 316000Zhejiang ProvinceChina Department of Pharmacy 905th Hospital of People’s Liberation Army of China(PLA)NavyShanghai 200052China

BACKGROUND Diabetic foot ulcers(DFU),as severe complications of diabetes mellitus(DM),significantly compromise patient health and carry risks of amputation and *** To offer new insights into the occurrence and development of DFU,focusing on the therapeutic mechanisms of X-Paste(XP)of wound healing in diabetic *** Employing traditional Chinese medicine ointment preparation methods,XP combines various medicinal ***-performance liquid chromatography(HPLC)identified XP’s main *** streptozotocin(STZ)-induced diabetic,we aimed to investigate whether XP participated in the process of diabetic wound ***-sequencing analyzed gene expression differences between XP-treated and control *** docking clarified XP’s treatment mechanisms for diabetic wound *** umbilical vein endothelial cells(HUVECs)were used to investigate the effects of Andrographolide(Andro)on cell viability,reactive oxygen species generation,apoptosis,proliferation,and metastasis in vitro following exposure to high glucose(HG),while NF-E2-related factor-2(Nrf2)knockdown elucidated Andro’s molecular *** XP notably enhanced wound healing in mice,expediting the healing ***-sequencing revealed Nrf2 upregulation in DM tissues following XP *** identified 21 primary XP components,with Andro exhibiting strong Nrf2 *** mitigated HG-induced HUVECs proliferation,metastasis,angiogenic injury,and inflammation *** alleviates HG-induced HUVECs damage through Nrf2/HO-1 pathway activation,with Nrf2 knockdown reducing Andro’s proliferative and endothelial protective *** XP significantly promotes wound healing in STZ-induced diabetic *** XP’s key component,Andro activates the Nrf2/HO-1 signaling pathway,enhancing cell proliferation,tubule formation,and inflammation reduction.

关键词： Words:Diabetes mellitus wound healing NF-E2-related factor-2/HO-1 signaling pathway Andrographolide

Impact of tibial transverse transport in tissue regeneration and wound healing with perspective on diabetic foot ulcers

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World Journal of Diabetes 2024年第5期15卷 810-813页

作者： Sulagna Mukherjee Seung-Soon Im Department of Physiology Keimyung University School of MedicineDaegu 42601Republic of Korea

In this editorial,we comment on an article by Liao et al published in the current issue of the World Journal of *** focus on the clinical significance of tibial transverse transport(TTT)as an effective treatment for patients with diabetic foot ulcers(DFU).TTT has been associated with tissue regeneration,improved blood circulation,reduced amputation rates,and increased expression of early angiogenic ***,TTT can influence macrophage polarization and growth factor *** this potential,the limitations and conflicting results of existing studies justify the need for further research into its optimal application and *** clinical implications highlight the efficacy of TTT in recalcitrant DFU and provide lasting stimuli for tissue re-generation,and blood vessel and bone marrow ***-lation via systemic responses contributes to its therapeutic *** studies should investigate the underlying molecular mechanisms to enhance our understanding and the efficacy of *** manuscript emphasizes the potential of TTT in limb preservation and diabetic wound healing and suggests avenues for preventive measures against limb amputation in diabetes and peripheral artery ***,we highlight the clinical significance of the TTT and its importance in healing DFU to promote the use of this technique in tissue regeneration.

关键词： Diabetes foot ulcer Tibial transverse transport Foot surgery wound healing Tissue regeneration

Study on the Promotion of wound healing in Mice with Burn Injuries by Bioactive Glass 1393

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Chinese Journal of Biomedical Engineering(English Edition) 2024年第1期33卷 9-16,26页

作者： XIA Wei-dong XU Ke ZHENG Chao-yu CHEN Xue-nan National Clinical Key Specialty(wound Repair Department) Wenzhou Medical University Affiliated First HospitalWenzhou Zhejiang 325000China Institute of Life Sciences Wenzhou UniversityWenzhou Zhejiang 325000China Wuhan University of Science and Technology School of Medicine Wuhan Hubei 430000China

Objective:To investigate the effect and mechanism of bioactive glass1393 on wound healing in mice with burn ***:A benchtop temperature-controlled scald instrument was used to establish a mouse burn wound model,which was divided into an injury group(simple scald group)and a bioactive glass 1393treatment *** wound healing of burn injuries in mice was observed at different times after the operation,and the formation of granulation tissue,collagen deposition and tissue proliferation in the wounds were observed by HE staining,Masson staining and Ki67 staining,and the levels of apoptosis-related proteins and the expression of wnt3a/β-catenin signaling pathway were detected in the wounds by Western ***:Compared with the injury group,the bioactive glass 1393 group accelerated burn wound healing and promoted granulation tissue formation,collagen deposition,and cell *** addition,compared with the injury group,the bioactive glass 1393 group promoted the expression of Bcl-2 protein,inhibited the expression of Bax protein and up-regulated the expression of Wnt3a andβ-catenin ***:Bioactive glass 1393 promotes burn wound healing in mice by inhibiting apoptosis through modulation of wnt3a/β-catenin signaling pathway.

关键词： bioactive glass 1393 wound healing apoptosis

Janus hydrogel/electrospun-membrane dressing enhancing wound healing in rats

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Biomedical Engineering Communications 2024年第2期3卷 17-25页

作者： Zi-Rui Zhu Jia-Na Huang Jin-Ze Li Hao Cao Zhao-Yi Lin Yan Li School of Biomedical Engineering Shenzhen Campus of Sun Yat-sen UniversityShenzhen 518107China Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument Sun Yat-sen UniversityGuangzhou 510006China

Background:Excessive exudate secreted from chronic wounds often leads to overhydration and *** a variety of dressings are currently available in clinical applications,they frequently fail to provide multifunction to promote chronic wound *** dressings with a Janus structure,featuring distinct properties on each side,are potential to improve wound ***:Composite dressings with a Janus structure were fabricated,comprising freeze-dried polycaprolactone(PCL)electrospun membrane and alginate-based *** PCL fibrous membrane provided air permeability,while the hydrogel loaded with Deferoxamine,composed of alginate and poly(N-isopropylacrylamide)(PNIPAM),exhibited hygroscopic *** inclusion of PNIPAM imparted ***:The hydrogel(thickness of 2.778±0.082 mm)exhibited a robust adhesion to the fiber membrane(thickness of 0.261±0.041 mm).For ANDC(Alginate-PNIPAM hydrogel with Deferoxamine/PCL membrane)samples,the water vapor transmission rate(WVTR)was measured to be 3364.80±23.23 g∙m−2∙day−1 and the swelling ratio at 2 h was determined to be 1179±125%.The thermo-responsivity of ANDC samples manifested in an increased swelling rate,escalating from 797±189%at 37°C to 1132±147%at 4°*** elastic modulus was assessed for lyophilized and rehydrated ANDC *** theωof the rheometer rotor was decreased from 10 rad/s to 0.1 rad/s,the lyophilized dressing exhibited a decrease from 2.65±0.01 MPa to 1.80±0.90 MPa,while the rehydrated dressing demonstrated an increase from 133.65±55.68 Pa to 264.23±141.71 *** pro-healing properties of the dressings were evaluated using full-thickness skin defect model on SD rats,and a circular wound of diameter 10 mm healed completely by day ***:The dressings not only protected the wound and absorbed excess exudate,but also demonstrated nondestructive peelability upon cooling,providing a novel approach for accelerating wound healing and management.

关键词： Janus structure composite dressing wound healing

Value of negative pressure sealing drainage on wound healing of Gustilo IIIB and IIIC open fractures

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World Journal of Clinical Cases 2024年第20期12卷 4199-4205页

作者： Bo Fang Yong-Sheng Wang Wei Li Kai Ying Gang Zong Department of Trauma Surgery The Second People’s Hospital of DalianDalian 116019Liaoning ProvinceChina

BACKGROUND Gustilo III fractures have a high incidence and are difficult to *** often experience difficulty in wound *** pressure drainage technology can help shorten wound healing time and has positive value in improving patient *** To explore the clinical value of the negative pressure sealing drainage technique in wound healing of Gustilo IIIB and IIIC open *** Eighty patients with Gustilo IIIB and IIIC open fractures with skin and soft tissue injuries who were treated in the Second People’s Hospital of Dalian from March 2019 to December 2021 were selected as the research *** were divided into a study group(n=40,healed with negative pressure closed drainage)and a control group(n=40,healed with conventional dressing changes)according to the variation in the healing they *** efficacy of the clinical interventions,the variations in the regression indicators(time to wound healing,time to fracture healing,time to hospitalization),and the conversion and healing of bacterial wounds were compared 1-3 mo after the *** The total effective rate of patients among the study group was 95.00%(38/40),which was notably higher than 75.00%(30/40)among the control group(Pwound healing time,fracture healing time,and hospital stay of the patients in the study group was shorter than the control group(Pwound site rate and wound healing rate of the patients among the study group increased compared to the control group(Pwounds with skin and soft tissue *** can notably enhance the wound healing rate and the negative rate of bacteria on the wound surface and help to speed up the recovery process of patients.

关键词： Negative pressure closed drainage Gustilo type III open fracture wound healing Clinical outcome Research value