Biofabrication最新文献

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Direct 3D printing of freeform anisotropic bioactive structure based on shear-oriented ink system. 基于剪切导向油墨系统的自由形态各向异性生物活性结构的直接三维打印。
IF 8.2 2区 医学
Biofabrication Pub Date : 2024-07-24 DOI: 10.1088/1758-5090/ad6375
Chenhui Yuan, Jinhong Jiang, Xinyu Zhang, Lin Gu, Xueping Wang, Lei Shao
{"title":"Direct 3D printing of freeform anisotropic bioactive structure based on shear-oriented ink system.","authors":"Chenhui Yuan, Jinhong Jiang, Xinyu Zhang, Lin Gu, Xueping Wang, Lei Shao","doi":"10.1088/1758-5090/ad6375","DOIUrl":"10.1088/1758-5090/ad6375","url":null,"abstract":"<p><p>Various anisotropic tissue structures exist in organisms, including muscle tissue, skin tissue, and nerve tissue. Replicating anisotropic tissue structures<i>in vitro</i>has posed a significant challenge. Three-dimensional (3D) printing technology is often used to fabricate biomimetic structures due to its advantages in manufacturing principle. However, direct 3D printing of freeform anisotropic bioactive structures has not been reported. To tackle this challenge, we developed a ternary F/G/P ink system that integrates the printability of Pluronic F127 (F), the robust bioactivity and photocrosslinking properties of gelatin methacryloyl (G), and the shear-induced alignment functionality of high-molecular-weight polyethylene glycol (P). And through this strategic ternary system combination, freeform anisotropic tissue structures can be 3D printed directly. Moreover, these anisotropic structures exhibit excellent bioactivity, and promote orientational growth of different cells. This advancement holds promise for the repair and replacement of anisotropic tissues within the human body.</p>","PeriodicalId":8964,"journal":{"name":"Biofabrication","volume":" ","pages":""},"PeriodicalIF":8.2,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141619228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beyond stiffness: deciphering the role of viscoelasticity in cancer evolution and treatment response. 超越僵化:解读粘弹性在癌症演变和治疗反应中的作用。
IF 8.2 2区 医学
Biofabrication Pub Date : 2024-07-24 DOI: 10.1088/1758-5090/ad5705
Ana Zubiarrain-Laserna, Daniel Martínez-Moreno, Julia López de Andrés, Laura de Lara-Peña, Olatz Guaresti, Ane Miren Zaldua, Gema Jiménez, Juan Antonio Marchal
{"title":"Beyond stiffness: deciphering the role of viscoelasticity in cancer evolution and treatment response.","authors":"Ana Zubiarrain-Laserna, Daniel Martínez-Moreno, Julia López de Andrés, Laura de Lara-Peña, Olatz Guaresti, Ane Miren Zaldua, Gema Jiménez, Juan Antonio Marchal","doi":"10.1088/1758-5090/ad5705","DOIUrl":"10.1088/1758-5090/ad5705","url":null,"abstract":"<p><p>There is increasing evidence that cancer progression is linked to tissue viscoelasticity, which challenges the commonly accepted notion that stiffness is the main mechanical hallmark of cancer. However, this new insight has not reached widespread clinical use, as most clinical trials focus on the application of tissue elasticity and stiffness in diagnostic, therapeutic, and surgical planning. Therefore, there is a need to advance the fundamental understanding of the effect of viscoelasticity on cancer progression, to develop novel mechanical biomarkers of clinical significance. Tissue viscoelasticity is largely determined by the extracellular matrix (ECM), which can be simulated<i>in vitro</i>using hydrogel-based platforms. Since the mechanical properties of hydrogels can be easily adjusted by changing parameters such as molecular weight and crosslinking type, they provide a platform to systematically study the relationship between ECM viscoelasticity and cancer progression. This review begins with an overview of cancer viscoelasticity, describing how tumor cells interact with biophysical signals in their environment, how they contribute to tumor viscoelasticity, and how this translates into cancer progression. Next, an overview of clinical trials focused on measuring biomechanical properties of tumors is presented, highlighting the biomechanical properties utilized for cancer diagnosis and monitoring. Finally, this review examines the use of biofabricated tumor models for studying the impact of ECM viscoelasticity on cancer behavior and progression and it explores potential avenues for future research on the production of more sophisticated and biomimetic tumor models, as well as their mechanical evaluation.</p>","PeriodicalId":8964,"journal":{"name":"Biofabrication","volume":" ","pages":""},"PeriodicalIF":8.2,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141305340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Riboflavin overproduction from diverse feedstocks with engineeredCorynebacterium glutamicum. 利用工程化谷氨酸棒杆菌从不同原料中超量生产核黄素。
IF 8.2 2区 医学
Biofabrication Pub Date : 2024-07-24 DOI: 10.1088/1758-5090/ad628e
Fernando Pérez-García, Luciana Fernandes Brito, Thea Isabel Bakken, Trygve Brautaset
{"title":"Riboflavin overproduction from diverse feedstocks with engineered<i>Corynebacterium glutamicum</i>.","authors":"Fernando Pérez-García, Luciana Fernandes Brito, Thea Isabel Bakken, Trygve Brautaset","doi":"10.1088/1758-5090/ad628e","DOIUrl":"10.1088/1758-5090/ad628e","url":null,"abstract":"<p><p>Riboflavin overproduction by<i>Corynebacterium glutamicum</i>was achieved by screening synthetic operons, enabling fine-tuned expression of the riboflavin biosynthetic genes<i>ribGCAH.</i>The synthetic operons were designed by means of predicted translational initiation rates of each open reading frame, with the best-performing selection enabling riboflavin overproduction without negatively affecting cell growth. Overexpression of the fructose-1,6-bisphosphatase (<i>fbp</i>) and 5-phosphoribosyl 1-pyrophosphate aminotransferase (<i>purF</i>) encoding genes was then done to redirect the metabolic flux towards the riboflavin precursors. The resulting strain produced 8.3 g l<sup>-1</sup>of riboflavin in glucose-based fed-batch fermentations, which is the highest reported riboflavin titer with<i>C. glutamicum</i>. Further genetic engineering enabled both xylose and mannitol utilization by<i>C. glutamicum</i>, and we demonstrated riboflavin overproduction with the xylose-rich feedstocks rice husk hydrolysate and spent sulfite liquor, and the mannitol-rich feedstock brown seaweed hydrolysate. Remarkably, rice husk hydrolysate provided 30% higher riboflavin yields compared to glucose in the bioreactors.</p>","PeriodicalId":8964,"journal":{"name":"Biofabrication","volume":" ","pages":""},"PeriodicalIF":8.2,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141598280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing neovascularization post-myocardial infarction through injectable hydrogel functionalized with endothelial-derived EVs. 通过注射内皮细胞衍生的 EVs 功能化水凝胶,增强心肌梗塞后的新生血管。
IF 8.2 2区 医学
Biofabrication Pub Date : 2024-07-23 DOI: 10.1088/1758-5090/ad6190
Fabio Maiullari, Marika Milan, Maila Chirivì, Maria Grazia Ceraolo, Salma Bousselmi, Nicole Fratini, Matteo Galbiati, Orazio Fortunato, Marco Costantini, Francesca Brambilla, Pierluigi Mauri, Dario Di Silvestre, Antonella Calogero, Tommaso Sciarra, Roberto Rizzi, Claudia Bearzi
{"title":"Enhancing neovascularization post-myocardial infarction through injectable hydrogel functionalized with endothelial-derived EVs.","authors":"Fabio Maiullari, Marika Milan, Maila Chirivì, Maria Grazia Ceraolo, Salma Bousselmi, Nicole Fratini, Matteo Galbiati, Orazio Fortunato, Marco Costantini, Francesca Brambilla, Pierluigi Mauri, Dario Di Silvestre, Antonella Calogero, Tommaso Sciarra, Roberto Rizzi, Claudia Bearzi","doi":"10.1088/1758-5090/ad6190","DOIUrl":"10.1088/1758-5090/ad6190","url":null,"abstract":"<p><p>Over the past three decades, cell therapy development has fallen short of expectations, with many cellular sources demonstrating a 'Janus effect' and raising safety concerns. Extracellular vesicles (EVs), supported by advanced technologies, present a promising avenue in regenerative medicine, offering benefits such as immune tolerance and avoidance of negative aspects associated with cell transplants. Our previous research showcased enhanced and organized subcutaneous vascularization using three-dimensional bioprinted patches containing HUVEC-derived EVs in immunodeficient animal models. In this context, stress conditions on the cells of origin further boosted the EVs' neoangiogenic potential. Since neovascularization is the first regenerative target requiring restoration, the present study aims to complement our previous work by employing an injectable gelatin methacrylate (GelMA) hydrogel functionalized with HUVEC-derived EVs in a pathological condition of acute myocardial infarction. This bioactive hydrogel resulted in reduced fibrosis, improved contractility, and promoted angiogenesis, showing promise in countering tissue deterioration and addressing vascular deficits. Moreover, the molecular characterization of EVs through miRNome and proteomic analyses further supports their potential as bio-additives for hydrogel functionalization. This cell-free approach mitigates immune rejection and oncogenic risks, offering innovative therapeutic advantages.</p>","PeriodicalId":8964,"journal":{"name":"Biofabrication","volume":" ","pages":""},"PeriodicalIF":8.2,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A 3D-printed tumor-on-chip: user-friendly platform for the culture of breast cancer spheroids and the evaluation of anti-cancer drugs. 三维打印肿瘤芯片:用于乳腺癌球形细胞培养和抗癌药物评估的用户友好型平台。
IF 8.2 2区 医学
Biofabrication Pub Date : 2024-07-23 DOI: 10.1088/1758-5090/ad5765
Salvador Gallegos-Martínez, David Choy-Buentello, Kristen Aideé Pérez-Álvarez, Itzel Montserrat Lara-Mayorga, Alberto Emmanuel Aceves-Colin, Yu Shrike Zhang, Grissel Trujillo-de Santiago, Mario Moisés Álvarez
{"title":"A 3D-printed tumor-on-chip: user-friendly platform for the culture of breast cancer spheroids and the evaluation of anti-cancer drugs.","authors":"Salvador Gallegos-Martínez, David Choy-Buentello, Kristen Aideé Pérez-Álvarez, Itzel Montserrat Lara-Mayorga, Alberto Emmanuel Aceves-Colin, Yu Shrike Zhang, Grissel Trujillo-de Santiago, Mario Moisés Álvarez","doi":"10.1088/1758-5090/ad5765","DOIUrl":"10.1088/1758-5090/ad5765","url":null,"abstract":"<p><p>Tumor-on-chips (ToCs) are useful platforms for studying the physiology of tumors and evaluating the efficacy and toxicity of anti-cancer drugs. However, the design and fabrication of a ToC system is not a trivial venture. We introduce a user-friendly, flexible, 3D-printed microfluidic device that can be used to culture cancer cells or cancer-derived spheroids embedded in hydrogels under well-controlled environments. The system consists of two lateral flow compartments (left and right sides), each with two inlets and two outlets to deliver cell culture media as continuous liquid streams. The central compartment was designed to host a hydrogel in which cells and microtissues can be confined and cultured. We performed tracer experiments with colored inks and 40 kDa fluorescein isothiocyanate dextran to characterize the transport/mixing performances of the system. We also cultured homotypic (MCF7) and heterotypic (MCF7-BJ) spheroids embedded in gelatin methacryloyl hydrogels to illustrate the use of this microfluidic device in sustaining long-term micro-tissue culture experiments. We further demonstrated the use of this platform in anticancer drug testing by continuous perfusion of doxorubicin, a commonly used anti-cancer drug for breast cancer. In these experiments, we evaluated drug transport, viability, glucose consumption, cell death (apoptosis), and cytotoxicity. In summary, we introduce a robust and friendly ToC system capable of recapitulating relevant aspects of the tumor microenvironment for the study of cancer physiology, anti-cancer drug transport, efficacy, and safety. We anticipate that this flexible 3D-printed microfluidic device may facilitate cancer research and the development and screening of strategies for personalized medicine.</p>","PeriodicalId":8964,"journal":{"name":"Biofabrication","volume":" ","pages":""},"PeriodicalIF":8.2,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141309943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
FRESH-based 3D bioprinting of complex biological geometries using chitosan bioink. 使用壳聚糖生物墨水以 FRESH 为基础进行复杂生物几何形状的三维生物打印。
IF 8.2 2区 医学
Biofabrication Pub Date : 2024-07-16 DOI: 10.1088/1758-5090/ad5d18
Parul Chaurasia, Richa Singh, Sanjeev Kumar Mahto
{"title":"FRESH-based 3D bioprinting of complex biological geometries using chitosan bioink.","authors":"Parul Chaurasia, Richa Singh, Sanjeev Kumar Mahto","doi":"10.1088/1758-5090/ad5d18","DOIUrl":"10.1088/1758-5090/ad5d18","url":null,"abstract":"<p><p>Traditional three-dimensional (3D) bioprinting has always been associated with the challenge of print fidelity of complex geometries due to the gel-like nature of the bioinks. Embedded 3D bioprinting has emerged as a potential solution to print complex geometries using proteins and polysaccharides-based bioinks. This study demonstrated the Freeform Reversible Embedding of Suspended Hydrogels (FRESH) 3D bioprinting method of chitosan bioink to 3D bioprint complex geometries. 4.5% chitosan was dissolved in an alkali solvent to prepare the bioink. Rheological evaluation of the bioink described its shear-thinning nature. The power law equation was fitted to the shear rate-viscosity plot. The flow index value was found to be less than 1, categorizing the material as pseudo-plastic. The chitosan bioink was extruded into another medium, a thermo-responsive 4.5% gelatin hydrogel. This hydrogel supports the growing print structures while printing. After this, the 3D bioprinted structure was crosslinked with hot water to stabilize the structure. Using this method, we have 3D bioprinted complex biological structures like the human tri-leaflet heart valve, a section of a human right coronary arterial tree, a scale-down outer structure of the human kidney, and a human ear. Additionally, we have shown the mechanical tunability and suturability of the 3D bioprinted structures. This study demonstrates the capability of the chitosan bioink and FRESH method for 3D bioprinting of complex biological models for biomedical applications.</p>","PeriodicalId":8964,"journal":{"name":"Biofabrication","volume":" ","pages":""},"PeriodicalIF":8.2,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141465949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Skin-on-a-chip technologies towards clinical translation and commercialization. 实现临床转化和商业化的片上皮肤技术。
IF 8.2 2区 医学
Biofabrication Pub Date : 2024-07-16 DOI: 10.1088/1758-5090/ad5f55
Nilufar Ismayilzada, Ceren Tarar, Sajjad Rahmani Dabbagh, Begüm Kübra Tokyay, Sara Asghari Dilmani, Emel Sokullu, Hasan Erbil Abaci, Savas Tasoglu
{"title":"Skin-on-a-chip technologies towards clinical translation and commercialization.","authors":"Nilufar Ismayilzada, Ceren Tarar, Sajjad Rahmani Dabbagh, Begüm Kübra Tokyay, Sara Asghari Dilmani, Emel Sokullu, Hasan Erbil Abaci, Savas Tasoglu","doi":"10.1088/1758-5090/ad5f55","DOIUrl":"10.1088/1758-5090/ad5f55","url":null,"abstract":"<p><p>Skin is the largest organ of the human body which plays a critical role in thermoregulation, metabolism (e.g. synthesis of vitamin D), and protection of other organs from environmental threats, such as infections, microorganisms, ultraviolet radiation, and physical damage. Even though skin diseases are considered to be less fatal, the ubiquity of skin diseases and irritation caused by them highlights the importance of skin studies. Furthermore, skin is a promising means for transdermal drug delivery, which requires a thorough understanding of human skin structure. Current animal and<i>in vitro</i>two/three-dimensional skin models provide a platform for disease studies and drug testing, whereas they face challenges in the complete recapitulation of the dynamic and complex structure of actual skin tissue. One of the most effective methods for testing pharmaceuticals and modeling skin diseases are skin-on-a-chip (SoC) platforms. SoC technologies provide a non-invasive approach for examining 3D skin layers and artificially creating disease models in order to develop diagnostic or therapeutic methods. In addition, SoC models enable dynamic perfusion of culture medium with nutrients and facilitate the continuous removal of cellular waste to further mimic the<i>in vivo</i>condition. Here, the article reviews the most recent advances in the design and applications of SoC platforms for disease modeling as well as the analysis of drugs and cosmetics. By examining the contributions of different patents to the physiological relevance of skin models, the review underscores the significant shift towards more ethical and efficient alternatives to animal testing. Furthermore, it explores the market dynamics of<i>in vitro</i>skin models and organ-on-a-chip platforms, discussing the impact of legislative changes and market demand on the development and adoption of these advanced research tools. This article also identifies the existing obstacles that hinder the advancement of SoC platforms, proposing directions for future improvements, particularly focusing on the journey towards clinical adoption.</p>","PeriodicalId":8964,"journal":{"name":"Biofabrication","volume":" ","pages":""},"PeriodicalIF":8.2,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141533540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fabricating vascularized, anatomically accurate bone grafts using 3D bioprinted sectional bone modules, in-situ angiogenesis, BMP-2 controlled release, and bioassembly. 利用三维生物打印切片骨模块、原位血管生成、BMP-2 控制释放和生物组装,制造血管化、解剖精确的骨移植物。
IF 8.2 2区 医学
Biofabrication Pub Date : 2024-07-16 DOI: 10.1088/1758-5090/ad5f56
Brian E Grottkau, Zhixin Hui, Chongzhao Ran, Yonggang Pang
{"title":"Fabricating vascularized, anatomically accurate bone grafts using 3D bioprinted sectional bone modules, in-situ angiogenesis, BMP-2 controlled release, and bioassembly.","authors":"Brian E Grottkau, Zhixin Hui, Chongzhao Ran, Yonggang Pang","doi":"10.1088/1758-5090/ad5f56","DOIUrl":"https://doi.org/10.1088/1758-5090/ad5f56","url":null,"abstract":"<p><p>Bone grafting is the most common treatment for repairing bone defects. However, current bone grafting methods have several drawbacks. Bone tissue engineering emerges as a promising solution to these problems. An ideal engineered bone graft should exhibit high mechanical strength, osteogenic properties, and pre-vascularization. Both top-down (using bulk scaffold) and bottom-up (using granular modules) approaches face challenges in fulfilling these requirements. In this paper, we propose a novel sectional modular bone approach to construct osteogenic, pre-vascularized bone grafts in anatomical shapes. We 3D-printed a series of rigid, thin, sectional, porous scaffolds from a biodegradable polymer, tailored to the dimensions of a femur bone shaft. These thin sectional modules promote efficient nutrition and waste removal due to a shorter diffusion distance. The modules were pre-vascularized via<i>in-situ</i>angiogenesis, achieved through endothelial cell sprouting from the scaffold struts. Angiogenesis was further enhanced through co-culture with bioprinted fibroblast microtissues, which secreted pre-angiogenic growth factors. Sectional modules were assembled around a porous rod incorporated with Bone Morphogenetic Protein-2 (BMP-2), which released over 3 weeks, demonstrating sustained osteogenic activity. The assembled scaffold, in the anatomical shape of a human femur shaft, was pre-vascularized, osteogenic, and possessed high mechanical strength, supporting 12 times the average body weight. The feasibility of implanting the assembled bone graft was demonstrated using a 3D-printed femur bone defect model. Our method provides a novel modular engineering approach for regenerating tissues that require high mechanical strength and vascularization.</p>","PeriodicalId":8964,"journal":{"name":"Biofabrication","volume":"16 4","pages":""},"PeriodicalIF":8.2,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141619229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A biopsy-sized 3D skin model with a perifollicular vascular plexus enables studying immune cell trafficking in the skin. 活检大小的三维皮肤模型带有毛囊周围血管丛,可用于研究皮肤中免疫细胞的迁移。
IF 8.2 2区 医学
Biofabrication Pub Date : 2024-07-12 DOI: 10.1088/1758-5090/ad5d1a
Krutav Rakesh Shah, Laura Garriga-Cerda, Alberto Pappalardo, Leila Sorrells, Hun Jin Jeong, Chang H Lee, Hasan Erbil Abaci
{"title":"A biopsy-sized 3D skin model with a perifollicular vascular plexus enables studying immune cell trafficking in the skin.","authors":"Krutav Rakesh Shah, Laura Garriga-Cerda, Alberto Pappalardo, Leila Sorrells, Hun Jin Jeong, Chang H Lee, Hasan Erbil Abaci","doi":"10.1088/1758-5090/ad5d1a","DOIUrl":"10.1088/1758-5090/ad5d1a","url":null,"abstract":"<p><p>Human skin vasculature features a unique anatomy in close proximity to the skin appendages and acts as a gatekeeper for constitutive lymphocyte trafficking to the skin. Approximating such structural complexity and functionality in 3D skin models is an outstanding tissue engineering challenge. In this study, we leverage the capabilities of the digital-light-processing bioprinting to generate an anatomically-relevant and miniaturized 3D skin-on-a-chip (3D-SoC) model in the size of a 6 mm punch biopsy. The 3D-SoC contains a perfusable vascular network resembling the superficial vascular plexus of the skin and closely surrounding bioengineered hair follicles. The perfusion capabilities of the 3D-SoC enables the circulation of immune cells, and high-resolution imaging of the immune cell-endothelial cell interactions, namely tethering, rolling, and extravasation in real-time. Moreover, the vascular pattern in 3D-SoC captures the physiological range of shear rates found in cutaneous blood vessels and allows for studying the effect of shear rate on T cell trafficking. In 3D-SoC, as expected,<i>in vitro</i>-polarized T helper 1 (Th1) cells show a stronger attachment on the vasculature compared to naïve T cells. Both naïve and T cells exhibit higher retention in the low-shear zones in the early stages (<5 min) of T cell attachment. Interestingly, at later stages T cell retention rate becomes independent of the shear rate. The attached Th1 cells further transmigrate from the vessel walls to the extracellular space and migrate toward the bioengineered hair follicles and interfollicular epidermis. When the epidermis is not present, Th1 cell migration toward the epidermis is significantly hindered, underscoring the role of epidermal signals on T cell infiltration. Our data validates the capabilities of 3D-SoC model to study the interactions between immune cells and skin vasculature in the context of epidermal signals. The biopsy-sized 3D-SoC model in this study represents a new level of anatomical and cellular complexity, and brings us a step closer to generating a truly functional human skin with its tissue-specific vasculature and appendages in the presence of circulating immune cells.</p>","PeriodicalId":8964,"journal":{"name":"Biofabrication","volume":" ","pages":""},"PeriodicalIF":8.2,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11244652/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141466015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Long-termin vitromaintenance of plasma cells in a hydrogel-enclosed human bone marrow microphysiological 3D model system. 在水凝胶封闭的人类骨髓微生理三维模型系统中长期体外维持浆细胞。
IF 8.2 2区 医学
Biofabrication Pub Date : 2024-07-12 DOI: 10.1088/1758-5090/ad5dfe
Stefania Martini, Norman Michael Drzeniek, Regina Stark, Matthias Reiner Kollert, Weijie Du, Simon Reinke, Melanie Ort, Sebastian Hardt, Iuliia Kotko, Jonas Kath, Stephan Schlickeiser, Sven Geißler, Dimitrios Laurin Wagner, Anna-Catharina Krebs, Hans-Dieter Volk
{"title":"Long-term<i>in vitro</i>maintenance of plasma cells in a hydrogel-enclosed human bone marrow microphysiological 3D model system.","authors":"Stefania Martini, Norman Michael Drzeniek, Regina Stark, Matthias Reiner Kollert, Weijie Du, Simon Reinke, Melanie Ort, Sebastian Hardt, Iuliia Kotko, Jonas Kath, Stephan Schlickeiser, Sven Geißler, Dimitrios Laurin Wagner, Anna-Catharina Krebs, Hans-Dieter Volk","doi":"10.1088/1758-5090/ad5dfe","DOIUrl":"10.1088/1758-5090/ad5dfe","url":null,"abstract":"<p><p>Plasma cells (PCs) in bone marrow (BM) play an important role in both protective and pathogenic humoral immune responses, e.g. in various malignant and non-malignant diseases such as multiple myeloma, primary and secondary immunodeficiencies and autoimmune diseases. Dedicated microenvironmental niches in the BM provide PCs with biomechanical and soluble factors that support their long-term survival. There is a high need for appropriate and robust model systems to better understand PCs biology, to develop new therapeutic strategies for PCs-related diseases and perform targeted preclinical studies with high predictive value. Most preclinical data have been derived from<i>in vivo</i>studies in mice, as<i>in vitro</i>studies of human PCs are limited due to restricted survival and functionality in conventional 2D cultures that do not reflect the unique niche architecture of the BM. We have developed a microphysiological, dynamic 3D BM culture system (BM-MPS) based on human primary tissue (femoral biopsies), mechanically supported by a hydrogel scaffold casing. While a bioinert agarose casing did not support PCs survival, a photo-crosslinked collagen-hyaluronic acid (Col-HA) hydrogel preserved the native BM niche architecture and allowed PCs survival<i>in vitro</i>for up to 2 weeks. Further, the Col-HA hydrogel was permissive to lymphocyte migration into the microphysiological system´s circulation. Long-term PCs survival was related to the stable presence in the culture of soluble factors, as APRIL, BAFF, and IL-6. Increasing immunoglobulins concentrations in the medium confirm their functionality over culture time. To the best of our knowledge, this study is the first report of successful long-term maintenance of primary-derived non-malignant PCs<i>in vitro</i>. Our innovative model system is suitable for in-depth<i>in vitro</i>studies of human PCs regulation and exploration of targeted therapeutic approaches such as CAR-T cell therapy or biologics.</p>","PeriodicalId":8964,"journal":{"name":"Biofabrication","volume":" ","pages":""},"PeriodicalIF":8.2,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141490736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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