Journal of Tissue Engineering最新文献

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Significance of mechanical loading in bone fracture healing, bone regeneration, and vascularization. 机械负荷在骨折愈合、骨再生和血管形成中的意义。
IF 8.2 1区 工程技术
Journal of Tissue Engineering Pub Date : 2023-01-01 DOI: 10.1177/20417314231172573
Qianli Ma, Zahra Miri, Håvard Jostein Haugen, Amirhossein Moghanian, Dagnjia Loca
{"title":"Significance of mechanical loading in bone fracture healing, bone regeneration, and vascularization.","authors":"Qianli Ma,&nbsp;Zahra Miri,&nbsp;Håvard Jostein Haugen,&nbsp;Amirhossein Moghanian,&nbsp;Dagnjia Loca","doi":"10.1177/20417314231172573","DOIUrl":"https://doi.org/10.1177/20417314231172573","url":null,"abstract":"<p><p>In 1892, J.L. Wolff proposed that bone could respond to mechanical and biophysical stimuli as a dynamic organ. This theory presents a unique opportunity for investigations on bone and its potential to aid in tissue repair. Routine activities such as exercise or machinery application can exert mechanical loads on bone. Previous research has demonstrated that mechanical loading can affect the differentiation and development of mesenchymal tissue. However, the extent to which mechanical stimulation can help repair or generate bone tissue and the related mechanisms remain unclear. Four key cell types in bone tissue, including osteoblasts, osteoclasts, bone lining cells, and osteocytes, play critical roles in responding to mechanical stimuli, while other cell lineages such as myocytes, platelets, fibroblasts, endothelial cells, and chondrocytes also exhibit mechanosensitivity. Mechanical loading can regulate the biological functions of bone tissue through the mechanosensor of bone cells intraosseously, making it a potential target for fracture healing and bone regeneration. This review aims to clarify these issues and explain bone remodeling, structure dynamics, and mechano-transduction processes in response to mechanical loading. Loading of different magnitudes, frequencies, and types, such as dynamic versus static loads, are analyzed to determine the effects of mechanical stimulation on bone tissue structure and cellular function. Finally, the importance of vascularization in nutrient supply for bone healing and regeneration was further discussed.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231172573"},"PeriodicalIF":8.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10214107/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10350396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Application of nanomaterials in the treatment of intracerebral hemorrhage. 纳米材料在脑出血治疗中的应用。
IF 8.2 1区 工程技术
Journal of Tissue Engineering Pub Date : 2023-01-01 DOI: 10.1177/20417314231157004
Xiangyu Zhang, Suliman Khan, Ruixue Wei, Yan Zhang, Yang Liu, Voon Wee Yong, Mengzhou Xue
{"title":"Application of nanomaterials in the treatment of intracerebral hemorrhage.","authors":"Xiangyu Zhang,&nbsp;Suliman Khan,&nbsp;Ruixue Wei,&nbsp;Yan Zhang,&nbsp;Yang Liu,&nbsp;Voon Wee Yong,&nbsp;Mengzhou Xue","doi":"10.1177/20417314231157004","DOIUrl":"https://doi.org/10.1177/20417314231157004","url":null,"abstract":"<p><p>Intracerebral hemorrhage (ICH) is a non-traumatic hemorrhage caused by the rupture of blood vessels in the brain parenchyma, with an acute mortality rate of 30%‒40%. Currently, available treatment options that include surgery are not promising, and new approaches are urgently needed. Nanotechnology offers new prospects in ICH because of its unique benefits. In this review, we summarize the applications of various nanomaterials in ICH. Nanomaterials not only enhance the therapeutic effects of drugs as delivery carriers but also contribute to several facets after ICH such as repressing detrimental neuroinflammation, resisting oxidative stress, reducing cell death, and improving functional deficits.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231157004"},"PeriodicalIF":8.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/6a/3e/10.1177_20417314231157004.PMC10074624.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9325558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Disc regeneration by injectable fucoidan-methacrylated dextran hydrogels through mechanical transduction and macrophage immunomodulation. 注射岩藻胶甲基丙烯酸右旋糖酐水凝胶通过机械转导和巨噬细胞免疫调节再生椎间盘。
IF 8.2 1区 工程技术
Journal of Tissue Engineering Pub Date : 2023-01-01 DOI: 10.1177/20417314231180050
Weifeng Li, Pinghui Zhou, Bomin Yan, Meiyao Qi, Yedan Chen, Lijun Shang, Jianzhong Guan, Li Zhang, Yingji Mao
{"title":"Disc regeneration by injectable fucoidan-methacrylated dextran hydrogels through mechanical transduction and macrophage immunomodulation.","authors":"Weifeng Li,&nbsp;Pinghui Zhou,&nbsp;Bomin Yan,&nbsp;Meiyao Qi,&nbsp;Yedan Chen,&nbsp;Lijun Shang,&nbsp;Jianzhong Guan,&nbsp;Li Zhang,&nbsp;Yingji Mao","doi":"10.1177/20417314231180050","DOIUrl":"https://doi.org/10.1177/20417314231180050","url":null,"abstract":"<p><p>Modulating a favorable inflammatory microenvironment that facilitates the recovery of degenerated discs is a key strategy in the treatment of intervertebral disc (IVD) degeneration (IDD). More interestingly, well-mechanized tissue-engineered scaffolds have been proven in recent years to be capable of sensing mechanical transduction to enhance the proliferation and activation of nucleus pulposus cells (NPC) and have demonstrated an increased potential in the treatment and recovery of degenerative discs. Additionally, existing surgical procedures may not be suitable for IDD treatment, warranting the requirement of new regenerative therapies for the restoration of disc structure and function. In this study, a light-sensitive injectable polysaccharide composite hydrogel with excellent mechanical properties was prepared using dextrose methacrylate (DexMA) and fucoidan with inflammation-modulating properties. Through numerous in vivo experiments, it was shown that the co-culture of this composite hydrogel with interleukin-1β-stimulated NPCs was able to promote cell proliferation whilst preventing inflammation. Additionally, activation of the caveolin1-yes-associated protein (CAV1-YAP) mechanotransduction axis promoted extracellular matrix (ECM) metabolism and thus jointly promoted IVD regeneration. After injection into an IDD rat model, the composite hydrogel inhibited the local inflammatory response by inducing macrophage M2 polarization and gradually reducing the ECM degradation. In this study, we propose a fucoidan-DexMA composite hydrogel, which provides an attractive approach for IVD regeneration.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231180050"},"PeriodicalIF":8.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/7c/b1/10.1177_20417314231180050.PMC10328174.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10292281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gut-on-a-chip for disease models. 用于疾病模型的肠道芯片。
IF 8.2 1区 工程技术
Journal of Tissue Engineering Pub Date : 2023-01-01 DOI: 10.1177/20417314221149882
Changxiu Xian, Jiaxin Zhang, Suqing Zhao, Xiang-Guang Li
{"title":"Gut-on-a-chip for disease models.","authors":"Changxiu Xian,&nbsp;Jiaxin Zhang,&nbsp;Suqing Zhao,&nbsp;Xiang-Guang Li","doi":"10.1177/20417314221149882","DOIUrl":"https://doi.org/10.1177/20417314221149882","url":null,"abstract":"<p><p>The intestinal tract is a vital organ responsible for digestion and absorption in the human body and plays an essential role in pathogen invasion. Compared with other traditional models, gut-on-a-chip has many unique advantages, and thereby, it can be considered as a novel model for studying intestinal functions and diseases. Based on the chip design, we can replicate the in vivo microenvironment of the intestine and study the effects of individual variables on the experiment. In recent years, it has been used to study several diseases. To better mimic the intestinal microenvironment, the structure and function of gut-on-a-chip are constantly optimised and improved. Owing to the complexity of the disease mechanism, gut-on-a-chip can be used in conjunction with other organ chips. In this review, we summarise the human intestinal structure and function as well as the development and improvement of gut-on-a-chip. Finally, we present and discuss gut-on-a-chip applications in inflammatory bowel disease (IBD), viral infections and phenylketonuria. Further improvement of the simulation and high throughput of gut-on-a-chip and realisation of personalised treatments are the problems that should be solved for gut-on-a-chip as a disease model.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314221149882"},"PeriodicalIF":8.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/07/3c/10.1177_20417314221149882.PMC9869227.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10677636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Enhanced effects of antagomiR-3074-3p-conjugated PEI-AuNPs on the odontogenic differentiation by targeting FKBP9. anagomir -3074-3p偶联的pai - aunps通过靶向FKBP9增强对牙源性分化的影响。
IF 8.2 1区 工程技术
Journal of Tissue Engineering Pub Date : 2023-01-01 DOI: 10.1177/20417314231184512
Tao Jiang, Shenghong Miao, Jingjie Shen, Wenjing Song, Shenglong Tan, Dandan Ma
{"title":"Enhanced effects of antagomiR-3074-3p-conjugated PEI-AuNPs on the odontogenic differentiation by targeting FKBP9.","authors":"Tao Jiang,&nbsp;Shenghong Miao,&nbsp;Jingjie Shen,&nbsp;Wenjing Song,&nbsp;Shenglong Tan,&nbsp;Dandan Ma","doi":"10.1177/20417314231184512","DOIUrl":"https://doi.org/10.1177/20417314231184512","url":null,"abstract":"<p><p>The odontogenic differentiation of dental pulp stem cells (DPSCs), which is vital for tooth regeneration, was regulated by various functional molecules. In recent years, a growing body of research has shown that miRNAs play a crucial role in the odontogenic differentiation of human dental pulp stem cells (hDPSCs). However, the mechanisms by which miRNAs regulated odontogenic differentiation of hDPSCs remained unclear, and the application of miRNAs in reparative dentin formation in vivo was also rare. In this study, we first discovered that miR-3074-3p had an inhibitory effect on odontogenic differentiation of hDPSCs and antagomiR-3074-3p-conjugated PEI-AuNPs effectively promoted odontogenic differentiation of hDPSCs in vitro. AntagomiR-3074-3p-conjugated PEI-AuNPs was further applied to the rat pulp-capping model and showed the increased formation of restorative dentin. In addition, the results of lentivirus transfection in vitro suggested that FKBP9 acted as the key target of miR-3074-3p in regulating the odontogenic differentiation of hDPSCs. These findings might provide a new strategy and candidate target for dentin restoration and tooth regeneration.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231184512"},"PeriodicalIF":8.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/37/7d/10.1177_20417314231184512.PMC10333998.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10304137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cell shape characteristics of human skeletal muscle cells as a predictor of myogenic competency: A new paradigm towards precision cell therapy. 人类骨骼肌细胞的细胞形状特征作为肌生成能力的预测因子:一种精确细胞治疗的新范式。
IF 8.2 1区 工程技术
Journal of Tissue Engineering Pub Date : 2023-01-01 DOI: 10.1177/20417314221139794
Charlotte Desprez, Davide Danovi, Charles H Knowles, Richard M Day
{"title":"Cell shape characteristics of human skeletal muscle cells as a predictor of myogenic competency: A new paradigm towards precision cell therapy.","authors":"Charlotte Desprez,&nbsp;Davide Danovi,&nbsp;Charles H Knowles,&nbsp;Richard M Day","doi":"10.1177/20417314221139794","DOIUrl":"https://doi.org/10.1177/20417314221139794","url":null,"abstract":"<p><p>Skeletal muscle-derived cells (SMDC) hold tremendous potential for replenishing dysfunctional muscle lost due to disease or trauma. Current therapeutic usage of SMDC relies on harvesting autologous cells from muscle biopsies that are subsequently expanded in vitro before re-implantation into the patient. Heterogeneity can arise from multiple factors including quality of the starting biopsy, age and comorbidity affecting the processed SMDC. Quality attributes intended for clinical use often focus on minimum levels of myogenic cell marker expression. Such approaches do not evaluate the likelihood of SMDC to differentiate and form myofibres when implanted in vivo, which ultimately determines the likelihood of muscle regeneration. Predicting the therapeutic potency of SMDC in vitro prior to implantation is key to developing successful therapeutics in regenerative medicine and reducing implementation costs. Here, we report on the development of a novel SMDC profiling tool to examine populations of cells in vitro derived from different donors. We developed an image-based pipeline to quantify morphological features and extracted cell shape descriptors. We investigated whether these could predict heterogeneity in the formation of myotubes and correlate with the myogenic fusion index. Several of the early cell shape characteristics were found to negatively correlate with the fusion index. These included total area occupied by cells, area shape, bounding box area, compactness, equivalent diameter, minimum ferret diameter, minor axis length and perimeter of SMDC at 24 h after initiating culture. The information extracted with our approach indicates live cell imaging can detect a range of cell phenotypes based on cell-shape alone and preserving cell integrity could be used to predict propensity to form myotubes in vitro and functional tissue in vivo.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314221139794"},"PeriodicalIF":8.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10026113/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9166700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Construction of a pancreatic cancer nerve invasion system using brain and pancreatic cancer organoids. 利用脑和胰腺癌类器官构建胰腺癌神经侵袭系统。
IF 8.2 1区 工程技术
Journal of Tissue Engineering Pub Date : 2023-01-01 DOI: 10.1177/20417314221147113
Chenyun Song, Xinyu Chen, Jixin Ma, Hada Buhe, Yang Liu, Hexige Saiyin, Lixiang Ma
{"title":"Construction of a pancreatic cancer nerve invasion system using brain and pancreatic cancer organoids.","authors":"Chenyun Song,&nbsp;Xinyu Chen,&nbsp;Jixin Ma,&nbsp;Hada Buhe,&nbsp;Yang Liu,&nbsp;Hexige Saiyin,&nbsp;Lixiang Ma","doi":"10.1177/20417314221147113","DOIUrl":"https://doi.org/10.1177/20417314221147113","url":null,"abstract":"<p><p>Pancreatic cancer (PC) is a fatal malignancy in the human abdominal cavity that prefers to invade the surrounding nerve/nerve plexus and even the spine, causing devastating and unbearable pain. The limitation of available in vitro models restricts revealing the molecular mechanism of pain and screening pain-relieving strategies to improve the quality of life of end-stage PC patients. Here, we report a PC nerve invasion model that merged human brain organoids (hBrO) with mouse PC organoids (mPCO). After merging hBrOs with mPCOs, we monitored the structural crosstalk, growth patterns, and mutual interaction dynamics of hBrO with mPCOs for 7 days. After 7 days, we also analyzed the pathophysiological statuses, including proliferation, apoptosis and inflammation. The results showed that mPCOs tend to approximate and intrude into the hBrOs, merge entirely into the hBrOs, and induce the retraction/shrinking of neuronal projections that protrude from the margin of the hBrOs. The approximating of mPCOs to hBrOs accelerated the proliferation of neuronal progenitor cells, intensified the apoptosis of neurons in the hBrOs, and increased the expression of inflammatory molecules in hBrOs, including NLRP3, IL-8, and IL-1β. Our system pathophysiologically replicated the nerve invasions in mouse GEMM (genetically engineered mouse model) primary and human PCs and might have the potential to be applied to reveal the molecular mechanism of nerve invasion and screen therapeutic strategies in PCs.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314221147113"},"PeriodicalIF":8.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/08/ea/10.1177_20417314221147113.PMC9829995.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10525848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A survey to evaluate parameters governing the selection and application of extracellular vesicle isolation methods. 细胞外囊泡分离方法的选择和应用参数的评价。
IF 8.2 1区 工程技术
Journal of Tissue Engineering Pub Date : 2023-01-01 DOI: 10.1177/20417314231155114
Soraya Williams, Aveen R Jalal, Mark P Lewis, Owen G Davies
{"title":"A survey to evaluate parameters governing the selection and application of extracellular vesicle isolation methods.","authors":"Soraya Williams,&nbsp;Aveen R Jalal,&nbsp;Mark P Lewis,&nbsp;Owen G Davies","doi":"10.1177/20417314231155114","DOIUrl":"https://doi.org/10.1177/20417314231155114","url":null,"abstract":"<p><p>Extracellular vesicles (EVs) continue to gain interest across the scientific community for diagnostic and therapeutic applications. As EV applications diversify, it is essential that researchers are aware of challenges, in particular the compatibility of EV isolation methods with downstream applications and their clinical translation. We report outcomes of the first cross-comparison study looking to determine parameters (EV source, starting volume, operator experience, application and implementation parameters such as cost and scalability) governing the selection of popular EV isolation methods across disciplines. Our findings highlighted an increased clinical focus, with 36% of respondents applying EVs in therapeutics and diagnostics. Data indicated preferential selection of ultracentrifugation for therapeutic applications, precipitation reagents in clinical settings and size exclusion chromatography for diagnostic applications utilising biofluids. Method selection was influenced by operator experience, with increased method diversity when EV research was not the respondents primary focus. Application and implementation criteria were indicated to be major influencers in method selection, with UC and SEC chosen for their abilities to process large and small volumes, respectively. Overall, we identified parameters influencing method selection across the breadth of EV science, providing a valuable overview of practical considerations for the effective translation of research outcomes.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231155114"},"PeriodicalIF":8.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9996742/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9104715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Epidermis-on-a-chip system to develop skin barrier and melanin mimicking model. 表皮芯片系统开发皮肤屏障和黑色素模拟模型。
IF 8.2 1区 工程技术
Journal of Tissue Engineering Pub Date : 2023-01-01 DOI: 10.1177/20417314231168529
Qiwei Li, Chunyan Wang, Xiaoran Li, Jing Zhang, Zilin Zhang, Keyu Yang, Jun Ouyang, Shaohui Zha, Lifeng Sha, Jianjun Ge, Zaozao Chen, Zhongze Gu
{"title":"Epidermis-on-a-chip system to develop skin barrier and melanin mimicking model.","authors":"Qiwei Li,&nbsp;Chunyan Wang,&nbsp;Xiaoran Li,&nbsp;Jing Zhang,&nbsp;Zilin Zhang,&nbsp;Keyu Yang,&nbsp;Jun Ouyang,&nbsp;Shaohui Zha,&nbsp;Lifeng Sha,&nbsp;Jianjun Ge,&nbsp;Zaozao Chen,&nbsp;Zhongze Gu","doi":"10.1177/20417314231168529","DOIUrl":"https://doi.org/10.1177/20417314231168529","url":null,"abstract":"<p><p>In vitro skin models are rapidly developing and have been widely used in various fields as an alternative to traditional animal experiments. However, most traditional static skin models are constructed on Transwell plates without a dynamic three-dimensional (3D) culture microenvironment. Compared with native human and animal skin, such in vitro skin models are not completely biomimetic, especially regarding their thickness and permeability. Therefore, there is an urgent need to develop an automated biomimetic human microphysiological system (MPS), which can be used to construct in vitro skin models and improve bionic performance. In this work, we describe the development of a triple-well microfluidic-based epidermis-on-a-chip (EoC) system, possessing epidermis barrier and melanin-mimicking functions, as well as being semi-solid specimen friendly. The special design of our EoC system allows pasty and semi-solid substances to be effectively utilized in testing, as well as allowing for long-term culturing and imaging. The epidermis in this EoC system is well-differentiated, including basal, spinous, granular, and cornified layers with appropriate epidermis marker (e.g. keratin-10, keratin-14, involucrin, loricrin, and filaggrin) expression levels in corresponding layers. We further demonstrate that this organotypic chip can prevent permeation of over 99.83% of cascade blue (a 607 Da fluorescent molecule), and prednisone acetate (PA) was applied to test percutaneous penetration in the EoC. Finally, we tested the whitening effect of a cosmetic on the proposed EoC, thus demonstrating its efficacy. In summary, we developed a biomimetic EoC system for epidermis recreation, which could potentially serve as a useful tool for skin irritation, permeability, cosmetic evaluation, and drug safety tests.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231168529"},"PeriodicalIF":8.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f7/de/10.1177_20417314231168529.PMC10126702.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9369864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mechanically activated mesenchymal-derived bone cells drive vessel formation via an extracellular vesicle mediated mechanism. 机械活化的间充质骨细胞通过细胞外囊泡介导机制驱动血管形成。
IF 8.2 1区 工程技术
Journal of Tissue Engineering Pub Date : 2023-01-01 DOI: 10.1177/20417314231186918
N Shen, M Maggio, I Woods, M C Lowry, R Almasri, C Gorgun, K F Eichholz, E Stavenschi, K Hokamp, F M Roche, L O'Driscoll, D A Hoey
{"title":"Mechanically activated mesenchymal-derived bone cells drive vessel formation via an extracellular vesicle mediated mechanism.","authors":"N Shen,&nbsp;M Maggio,&nbsp;I Woods,&nbsp;M C Lowry,&nbsp;R Almasri,&nbsp;C Gorgun,&nbsp;K F Eichholz,&nbsp;E Stavenschi,&nbsp;K Hokamp,&nbsp;F M Roche,&nbsp;L O'Driscoll,&nbsp;D A Hoey","doi":"10.1177/20417314231186918","DOIUrl":"https://doi.org/10.1177/20417314231186918","url":null,"abstract":"<p><p>Blood vessel formation is an important initial step for bone formation during development as well as during remodelling and repair in the adult skeleton. This results in a heavily vascularized tissue where endothelial cells and skeletal cells are constantly in crosstalk to facilitate homeostasis, a process that is mediated by numerous environmental signals, including mechanical loading. Breakdown in this communication can lead to disease and/or poor fracture repair. Therefore, this study aimed to determine the role of mature bone cells in regulating angiogenesis, how this is influenced by a dynamic mechanical environment, and understand the mechanism by which this could occur. Herein, we demonstrate that both osteoblasts and osteocytes coordinate endothelial cell proliferation, migration, and blood vessel formation via a mechanically dependent paracrine mechanism. Moreover, we identified that this process is mediated via the secretion of extracellular vesicles (EVs), as isolated EVs from mechanically stimulated bone cells elicited the same response as seen with the full secretome, while the EV-depleted secretome did not elicit any effect. Despite mechanically activated bone cell-derived EVs (MA-EVs) driving a similar response to VEGF treatment, MA-EVs contain minimal quantities of this angiogenic factor. Lastly, a miRNA screen identified mechanoresponsive miRNAs packaged within MA-EVs which are linked with angiogenesis. Taken together, this study has highlighted an important mechanism in osteogenic-angiogenic coupling in bone and has identified the mechanically activated bone cell-derived EVs as a therapeutic to promote angiogenesis and potentially bone repair.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231186918"},"PeriodicalIF":8.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10467237/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10668860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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