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, 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","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}
Panagiota Kakni, Barry Jutten, Daniel Teixeira Oliveira Carvalho, John Penders, Roman Truckenmüller, Pamela Habibovic, Stefan Giselbrecht
{"title":"Hypoxia-tolerant apical-out intestinal organoids to model host-microbiome interactions.","authors":"Panagiota Kakni, Barry Jutten, Daniel Teixeira Oliveira Carvalho, John Penders, Roman Truckenmüller, Pamela Habibovic, Stefan Giselbrecht","doi":"10.1177/20417314221149208","DOIUrl":"https://doi.org/10.1177/20417314221149208","url":null,"abstract":"<p><p>Microbiome is an integral part of the gut and is essential for its proper function. Imbalances of the microbiota can be devastating and have been linked with several gastrointestinal conditions. Current gastrointestinal models do not fully reflect the in vivo situation. Thus, it is important to establish more advanced in vitro models to study host-microbiome/pathogen interactions. Here, we developed for the first time an apical-out human small intestinal organoid model in hypoxia, where the apical surface is directly accessible and exposed to a hypoxic environment. These organoids mimic the intestinal cell composition, structure and functions and provide easy access to the apical surface. Co-cultures with the anaerobic strains <i>Lactobacillus casei</i> and <i>Bifidobacterium longum</i> showed successful colonization and probiotic benefits on the organoids. These novel hypoxia-tolerant apical-out small intestinal organoids will pave the way for unraveling unknown mechanisms related to host-microbiome interactions and serve as a tool to develop microbiome-related probiotics and therapeutics.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314221149208"},"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/85/d4/10.1177_20417314221149208.PMC9869231.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10677635","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}
{"title":"Position Paper Progress in the development of biomimetic engineered human tissues.","authors":"Umber Cheema","doi":"10.1177/20417314221145663","DOIUrl":"https://doi.org/10.1177/20417314221145663","url":null,"abstract":"<p><p>Tissue engineering (TE) is the multi-disciplinary approach to building 3D human tissue equivalents in the laboratory. The advancement of medical sciences and allied scientific disciplines have aspired to engineer human tissues for three decades. To date there is limited use of TE tissues/organs as replacement body parts in humans. This position paper outlines advances in engineering of specific tissues and organs with tissue-specific challenges. This paper outlines the technologies most successful for engineering tissues and key areas of advancement.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314221145663"},"PeriodicalIF":8.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9974615/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9395400","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}
{"title":"Osteoarthritis models: From animals to tissue engineering.","authors":"Hongyuan Dou, Shuhan Wang, Jiawei Hu, Jian Song, Chao Zhang, Jiali Wang, Lin Xiao","doi":"10.1177/20417314231172584","DOIUrl":"https://doi.org/10.1177/20417314231172584","url":null,"abstract":"<p><p>Osteoarthritis (OA) is a chronic degenerative osteoarthropathy. Although it has been revealed that a variety of factors can cause or aggravate the symptoms of OA, the pathogenic mechanisms of OA remain unknown. Reliable OA models that accurately reflect human OA disease are crucial for studies on the pathogenic mechanism of OA and therapeutic drug evaluation. This review first demonstrated the importance of OA models by briefly introducing the OA pathological features and the current limitations in the pathogenesis and treatment of OA. Then, it mainly discusses the development of different OA models, including animal and engineered models, highlighting their advantages and disadvantages from the perspective of pathogenesis and pathology analysis. In particular, the state-of-the-art engineered models and their potential were emphasized, as they may represent the future direction in the development of OA models. Finally, the challenges in obtaining reliable OA models are also discussed, and possible future directions are outlined to shed some light on this area.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231172584"},"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/bb/5d/10.1177_20417314231172584.PMC10201005.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10300124","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}
{"title":"Modified black phosphorus quantum dots promotes spinal cord injury repair by targeting the AKT signaling pathway.","authors":"Dong-Mei Xie, Chuanwei Sun, Qingqiang Tu, Suyi Li, Yu Zhang, Xifan Mei, Yuanlong Li","doi":"10.1177/20417314231180033","DOIUrl":"https://doi.org/10.1177/20417314231180033","url":null,"abstract":"<p><p>Spinal cord injury (SCI) is a serious refractory disease of the central nervous system (CNS), which mostly caused by high-energy trauma. Existing interventions such as hormone shock and surgery are insufficient options, which relate to the secondary inflammation and neuronal dysfunction. Hydrogel with neuron-protective behaviors attracts tremendous attention, and black phosphorus quantum dots (BPQDs) encapsulating with Epigallocatechin-3-gallate (EGCG) hydrogels (E@BP) is designed for inflammatory modulation and SCI treatment in this study. E@BP displays good stability, biocompatibility and safety profiles. E@BP incubation alleviates lipopolysaccharide (LPS)-induced inflammation of primary neurons and enhances neuronal regeneration in vitro. Furthermore, E@BP reconstructs structural versus functional integrity of spinal cord tracts, which promotes recovery of motor neuron function in SCI rats after transplantation. Importantly, E@BP restarts the cell cycle and induces nerve regeneration. Moreover, E@BP diminishes local inflammation of SCI tissues, characterized by reducing accumulation of astrocyte, microglia, macrophages, and oligodendrocytes. Indeed, a common underlying mechanism of E@BP regulating neural regenerative and inflammatory responses is to promote the phosphorylation of key proteins related to AKT signaling pathway. Together, E@BP probably repairs SCI by reducing inflammation and promoting neuronal regeneration via the AKT signaling pathway.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231180033"},"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/d5/62/10.1177_20417314231180033.PMC10272649.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10291236","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}
Raúl Sanz-Horta, Ana Matesanz, Alberto Gallardo, Helmut Reinecke, José Luis Jorcano, Pablo Acedo, Diego Velasco, Carlos Elvira
{"title":"Technological advances in fibrin for tissue engineering.","authors":"Raúl Sanz-Horta, Ana Matesanz, Alberto Gallardo, Helmut Reinecke, José Luis Jorcano, Pablo Acedo, Diego Velasco, Carlos Elvira","doi":"10.1177/20417314231190288","DOIUrl":"https://doi.org/10.1177/20417314231190288","url":null,"abstract":"<p><p>Fibrin is a promising natural polymer that is widely used for diverse applications, such as hemostatic glue, carrier for drug and cell delivery, and matrix for tissue engineering. Despite the significant advances in the use of fibrin for bioengineering and biomedical applications, some of its characteristics must be improved for suitability for general use. For example, fibrin hydrogels tend to shrink and degrade quickly after polymerization, particularly when they contain embedded cells. In addition, their poor mechanical properties and batch-to-batch variability affect their handling, long-term stability, standardization, and reliability. One of the most widely used approaches to improve their properties has been modification of the structure and composition of fibrin hydrogels. In this review, recent advances in composite fibrin scaffolds, chemically modified fibrin hydrogels, interpenetrated polymer network (IPN) hydrogels composed of fibrin and other synthetic or natural polymers are critically reviewed, focusing on their use for tissue engineering.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231190288"},"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/29/ea/10.1177_20417314231190288.PMC10426312.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10355843","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}
Jiah Shin Chin, Ulla Milbreta, David L Becker, Sing Yian Chew
{"title":"Targeting connexin 43 expression via scaffold mediated delivery of antisense oligodeoxynucleotide preserves neurons, enhances axonal extension, reduces astrocyte and microglial activation after spinal cord injury.","authors":"Jiah Shin Chin, Ulla Milbreta, David L Becker, Sing Yian Chew","doi":"10.1177/20417314221145789","DOIUrl":"https://doi.org/10.1177/20417314221145789","url":null,"abstract":"<p><p>Injury to the central nervous system (CNS) provokes an inflammatory reaction and secondary damage that result in further tissue damage and destruction of neurons away from the injury site. Upon injury, expression of connexin 43 (Cx43), a gap junction protein, upregulates and is responsible for the spread and amplification of cell death signals through these gap junctions. In this study, we hypothesise that the downregulation of Cx43 by scaffold-mediated controlled delivery of antisense oligodeoxynucleotide (asODN), would minimise secondary injuries and cell death, and thereby support tissue regeneration after nerve injuries. Specifically, using spinal cord injury (SCI) as a proof-of-principle, we utilised a fibre-hydrogel scaffold for sustained delivery of Cx43asODN, while providing synergistic topographical cues to guide axonal ingrowth. Correspondingly, scaffolds loaded with Cx43asODN, in the presence of NT-3, suppressed Cx43 up-regulation after complete transection SCI in rats. These scaffolds facilitated the sustained release of Cx43asODN for up to 25 days. Importantly, asODN treatment preserved neurons around the injury site, promoted axonal extension, decreased glial scarring, and reduced microglial activation after SCI. Our results suggest that implantation of such scaffold-mediated asODN delivery platform could serve as an effective alternative SCI therapeutic approach.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314221145789"},"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/6e/0c/10.1177_20417314221145789.PMC9926388.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10748981","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}
{"title":"In vivo vascularized scaffold with different shear-exposed models for lymphatic tissue regeneration.","authors":"Hui-Yi Hsiao, Gina Alicia Mackert, Yung-Chun Chang, Jia-Wei Liu, Frank Chun-Shin Chang, Jung-Ju Huang","doi":"10.1177/20417314231196212","DOIUrl":"https://doi.org/10.1177/20417314231196212","url":null,"abstract":"<p><p>Current clinical treatments on lymphedema provide promising results, but also result in donor site morbidities. The establishment of a microenvironment optimized for lymphangiogenesis can be an alternative way to enhance lymphatic tissue formation. Hemodynamic flow stimuli have been confirmed to have an influential effect on angiogenesis in tissue engineering, but not on lymphatic vessel formation. Here, the three <i>in vivo</i> scaffolds generated from different blood stimuli in the subcutaneous layer, in the flow through pedicle, and in an arterio-venous (AV) loop model, were created to investigate potential of lymphangiogenesis of scaffolds containing lymphatic endothelial cells (LECs). Our results indicated that AV loop model displayed better lymphangiogenesis in comparison to the other two models with slower flow or no stimuli. Other than hemodynamic force, the supplement of LECs is required for lymphatic vessel regeneration. The <i>in vivo</i> scaffold generated from AV loop model provides an effective approach for engineering lymphatic tissue in the clinical treatment of lymphedema.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231196212"},"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/fa/4d/10.1177_20417314231196212.PMC10472829.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10669331","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}
Zhaohua Wang, Si Wen, Meiqi Zhong, Ziming Yang, Wei Xiong, Kuo Zhang, Shude Yang, Huizheng Li, Shu Guo
{"title":"Epigenetics: Novel crucial approach for osteogenesis of mesenchymal stem cells.","authors":"Zhaohua Wang, Si Wen, Meiqi Zhong, Ziming Yang, Wei Xiong, Kuo Zhang, Shude Yang, Huizheng Li, Shu Guo","doi":"10.1177/20417314231175364","DOIUrl":"https://doi.org/10.1177/20417314231175364","url":null,"abstract":"<p><p>Bone has a robust regenerative potential, but its capacity to repair critical-sized bone defects is limited. In recent years, stem cells have attracted significant interest for their potential in tissue engineering. Applying mesenchymal stem cells (MSCs) for enhancing bone regeneration is a promising therapeutic strategy. However, maintaining optimal cell efficacy or viability of MSCs is limited by several factors. Epigenetic modification can cause changes in gene expression levels without changing its sequence, mainly including nucleic acids methylation, histone modification, and non-coding RNAs. This modification is believed to be one of the determinants of MSCs fate and differentiation. Understanding the epigenetic modification of MSCs can improve the activity and function of stem cells. This review summarizes recent advances in the epigenetic mechanisms of MSCs differentiation into osteoblast lineages. We expound that epigenetic modification of MSCs can be harnessed to treat bone defects and promote bone regeneration, providing potential therapeutic targets for bone-related diseases.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231175364"},"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/45/be/10.1177_20417314231175364.PMC10278427.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10301181","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}
{"title":"Tissue engineering in growth plate cartilage regeneration: Mechanisms to therapeutic strategies.","authors":"Ruoyi Guo, Hanjie Zhuang, Xiuning Chen, Yulong Ben, Minjie Fan, Yiwei Wang, Pengfei Zheng","doi":"10.1177/20417314231187956","DOIUrl":"https://doi.org/10.1177/20417314231187956","url":null,"abstract":"<p><p>The repair of growth plate injuries is a highly complex process that involves precise spatiotemporal regulation of multiple cell types. While significant progress has been made in understanding the pathological mechanisms underlying growth plate injuries, effectively regulating this process to regenerate the injured growth plate cartilage remains a challenge. Tissue engineering technology has emerged as a promising therapeutic approach for achieving tissue regeneration through the use of functional biological materials, seed cells and biological factors, and it is now widely applied to the regeneration of bone and cartilage. However, due to the unique structure and function of growth plate cartilage, distinct strategies are required for effective regeneration. Thus, this review provides an overview of current research on the application of tissue engineering to promote growth plate regeneration. It aims to elucidates the underlying mechanisms by which tissue engineering promotes growth plate regeneration and to provide novel insights and therapeutic strategies for future research on the regeneration of growth plate.</p>","PeriodicalId":17384,"journal":{"name":"Journal of Tissue Engineering","volume":"14 ","pages":"20417314231187956"},"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/be/10.1177_20417314231187956.PMC10359656.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10301443","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}