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Tian D, Mao Z, Wang L, Huang X, Wang W, Luo H, Peng J, Chen Y. Rocking- and diffusion-based culture of tumor spheroids-on-a-chip. LAB ON A CHIP 2024; 24:2561-2574. [PMID: 38629978 DOI: 10.1039/d3lc01116j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Tumor spheroids are now intensively investigated toward preclinical and clinical applications, necessitating the establishment of accessible and cost-effective methods for routine operations. Without losing the advantage of organ-chip technologies, we developed a rocking system for facile formation and culture of tumor spheroids in hydrogel microwells of a suspended membrane under microfluidic conditions. While the rocking is controlled with a step motor, the microfluidic device is made of two plastic plates, allowing plugging directly syringe tubes with Luer connectors. Upon injection of the culture medium into the tubes and subsequent rocking of the chip, the medium flows back and forth in the channel underneath the membrane, ensuring a diffusion-based culture. Our results showed that such a rocking- and diffusion-based culture method significantly improved the quality of the tumor spheroids when compared to the static culture, particularly in terms of growth rate, roundness, junction formation and compactness of the spheroids. Notably, dynamically cultured tumor spheroids showed increased drug resistance, suggesting alternative assay conditions. Overall, the present method is pumpless, connectionless, and user-friendly, thereby facilitating the advancement of tumor-spheroid-based applications.
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Affiliation(s)
- Duomei Tian
- Département de Chimie, École Normale Supérieure-PSL Research University, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, rue Lhomond, 75005 Paris, France.
| | - Zheng Mao
- Département de Chimie, École Normale Supérieure-PSL Research University, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, rue Lhomond, 75005 Paris, France.
| | - Li Wang
- MesoBioTech, 231 Rue Saint-Honoré, 75001 Paris, France
| | - Xiaochen Huang
- Département de Chimie, École Normale Supérieure-PSL Research University, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, rue Lhomond, 75005 Paris, France.
| | - Wei Wang
- Département de Chimie, École Normale Supérieure-PSL Research University, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, rue Lhomond, 75005 Paris, France.
| | - Haoyue Luo
- Département de Chimie, École Normale Supérieure-PSL Research University, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, rue Lhomond, 75005 Paris, France.
| | - Juan Peng
- Département de Chimie, École Normale Supérieure-PSL Research University, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, rue Lhomond, 75005 Paris, France.
| | - Yong Chen
- Département de Chimie, École Normale Supérieure-PSL Research University, Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640, PASTEUR, 24, rue Lhomond, 75005 Paris, France.
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2
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Ogawa M, Kermani AS, Huynh MJ, Baar K, Leach JK, Block DE. Edible mycelium as proliferation and differentiation support for anchorage-dependent animal cells in cultivated meat production. NPJ Sci Food 2024; 8:23. [PMID: 38693150 PMCID: PMC11063153 DOI: 10.1038/s41538-024-00263-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 03/26/2024] [Indexed: 05/03/2024] Open
Abstract
Cultivated meat production requires bioprocess optimization to achieve cell densities that are multiple orders of magnitude higher compared to conventional cell culture techniques. These processes must maximize resource efficiency and cost-effectiveness by attaining high cell growth productivity per unit of medium. Microcarriers, or carriers, are compatible with large-scale bioreactor use, and offer a large surface-area-to-volume ratio for the adhesion and proliferation of anchorage-dependent animal cells. An ongoing challenge persists in the efficient retrieval of cells from the carriers, with conflicting reports on the effectiveness of trypsinization and the need for additional optimization measures such as carrier sieving. To surmount this issue, edible carriers have been proposed, offering the advantage of integration into the final food product while providing opportunities for texture, flavor, and nutritional incorporation. Recently, a proof of concept (POC) utilizing inactivated mycelium biomass derived from edible filamentous fungus demonstrated its potential as a support structure for myoblasts. However, this POC relied on a model mammalian cell line combination with a single mycelium species, limiting realistic applicability to cultivated meat production. This study aims to advance the POC. We found that the species of fungi composing the carriers impacts C2C12 myoblast cell attachment-with carriers derived from Aspergillus oryzae promoting the best proliferation. C2C12 myoblasts effectively differentiated on mycelium carriers when induced in myogenic differentiation media. Mycelium carriers also supported proliferation and differentiation of bovine satellite cells. These findings demonstrate the potential of edible mycelium carrier technology to be readily adapted in product development within the cultivated meat industry.
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Affiliation(s)
- Minami Ogawa
- Department of Food Science and Technology, University of California, Davis, Davis, CA, 95616, USA
| | - Alex S Kermani
- Department of Materials Science and Engineering, University of California, Davis, Davis, CA, 95616, USA
| | - Mayrene J Huynh
- Department of Food Science and Technology, University of California, Davis, Davis, CA, 95616, USA
| | - Keith Baar
- Department of Neurobiology, Physiology, and Behavior, University of California, Davis, Davis, CA, 95616, USA
| | - J Kent Leach
- Department of Orthopaedic Surgery, UC Davis Health, Sacramento, CA, 95817, USA
- Department of Biomedical Engineering, University of California, Davis, Davis, CA, 95616, USA
| | - David E Block
- Department of Chemical Engineering, University of California, Davis, Davis, CA, 95616, USA.
- Department of Viticulture and Enology, University of California, Davis, Davis, CA, 95616, USA.
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3
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Zambuto SG, Scott AK, Oyen ML. Beyond 2D: Novel biomaterial approaches for modeling the placenta. Placenta 2024:S0143-4004(24)00073-0. [PMID: 38514278 DOI: 10.1016/j.placenta.2024.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/09/2024] [Accepted: 03/13/2024] [Indexed: 03/23/2024]
Abstract
This review considers fully three-dimensional biomaterial environments of varying complexity as these pertain to research on the placenta. The developments in placental cell sources are first considered, along with the corresponding maternal cells with which the trophoblast interact. We consider biomaterial sources, including hybrid and composite biomaterials. Properties and characterization of biomaterials are discussed in the context of material design for specific placental applications. The development of increasingly complicated three-dimensional structures includes examples of advanced fabrication methods such as microfluidic device fabrication and 3D bioprinting, as utilized in a placenta context. The review finishes with a discussion of the potential for in vitro, three-dimensional placenta research to address health disparities and sexual dimorphism, especially in light of the exciting recent changes in the regulatory environment for in vitro devices.
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Affiliation(s)
- Samantha G Zambuto
- Department of Obstetrics and Gynecology, Washington University in St. Louis, St. Louis, MO, USA; Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA; Center for Women's Health Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Adrienne K Scott
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA; Center for Women's Health Engineering, Washington University in St. Louis, St. Louis, MO, USA; Center for Regenerative Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Michelle L Oyen
- Department of Obstetrics and Gynecology, Washington University in St. Louis, St. Louis, MO, USA; Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA; Center for Women's Health Engineering, Washington University in St. Louis, St. Louis, MO, USA; Center for Regenerative Medicine, Washington University in St. Louis, St. Louis, MO, USA.
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4
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Sun T, Xiang Y, Turner F, Bao X. Integrated Experimental and Mathematical Exploration of Modular Tissue Cultures for Developmental Engineering. Int J Mol Sci 2024; 25:2987. [PMID: 38474234 DOI: 10.3390/ijms25052987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/06/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Developmental engineering (DE) involves culturing various cells on modular scaffolds (MSs), yielding modular tissues (MTs) assembled into three-dimensional (3D) tissues, mimicking developmental biology. This study employs an integrated approach, merging experimental and mathematical methods to investigate the biological processes in MT cultivation and assembly. Human dermal fibroblasts (HDFs) were cultured on tissue culture plastics, poly(lactic acid) (PLA) discs with regular open structures, or spherical poly(methyl methacrylate) (PMMA) MSs, respectively. Notably, HDFs exhibited flattened spindle shapes when adhered to solid surfaces, and complex 3D structures when migrating into the structured voids of PLA discs or interstitial spaces between aggregated PMMA MSs, showcasing coordinated colonization of porous scaffolds. Empirical investigations led to power law models simulating density-dependent cell growth on solid surfaces or voids. Concurrently, a modified diffusion model was applied to simulate oxygen diffusion within tissues cultured on solid surfaces or porous structures. These mathematical models were subsequently combined to explore the influences of initial cell seeding density, culture duration, and oxygen diffusion on MT cultivation and assembly. The findings underscored the intricate interplay of factors influencing MT design for tissue assembly. The integrated approach provides insights into mechanistic aspects, informing bioprocess design for manufacturing MTs and 3D tissues in DE.
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Affiliation(s)
- Tao Sun
- Department of Chemical Engineering, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
| | - Yu Xiang
- Department of Materials, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
| | - Freya Turner
- Department of Chemical Engineering, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
| | - Xujin Bao
- Department of Materials, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
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5
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Clift CL, Blaser MC, Gerrits W, Turner ME, Sonawane A, Pham T, Andresen JL, Fenton OS, Grolman JM, Campedelli A, Buffolo F, Schoen FJ, Hjortnaes J, Muehlschlegel JD, Mooney DJ, Aikawa M, Singh SA, Langer R, Aikawa E. Intracellular proteomics and extracellular vesiculomics as a metric of disease recapitulation in 3D-bioprinted aortic valve arrays. SCIENCE ADVANCES 2024; 10:eadj9793. [PMID: 38416823 PMCID: PMC10901368 DOI: 10.1126/sciadv.adj9793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 01/25/2024] [Indexed: 03/01/2024]
Abstract
In calcific aortic valve disease (CAVD), mechanosensitive valvular cells respond to fibrosis- and calcification-induced tissue stiffening, further driving pathophysiology. No pharmacotherapeutics are available to treat CAVD because of the paucity of (i) appropriate experimental models that recapitulate this complex environment and (ii) benchmarking novel engineered aortic valve (AV)-model performance. We established a biomaterial-based CAVD model mimicking the biomechanics of the human AV disease-prone fibrosa layer, three-dimensional (3D)-bioprinted into 96-well arrays. Liquid chromatography-tandem mass spectrometry analyses probed the cellular proteome and vesiculome to compare the 3D-bioprinted model versus traditional 2D monoculture, against human CAVD tissue. The 3D-bioprinted model highly recapitulated the CAVD cellular proteome (94% versus 70% of 2D proteins). Integration of cellular and vesicular datasets identified known and unknown proteins ubiquitous to AV calcification. This study explores how 2D versus 3D-bioengineered systems recapitulate unique aspects of human disease, positions multiomics as a technique for the evaluation of high throughput-based bioengineered model systems, and potentiates future drug discovery.
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Affiliation(s)
- Cassandra L Clift
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Mark C Blaser
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Willem Gerrits
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
- Department of Cardiothoracic Surgery, University Medical Center Utrecht, Utrecht, Netherlands
| | - Mandy E Turner
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Abhijeet Sonawane
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Tan Pham
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Jason L Andresen
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Owen S Fenton
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Division of Pharmacoengineering and Molecular Pharmaceutics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Joshua M Grolman
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02134, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA 02115, USA
- Materials Science and Engineering, The Technion-Israel Institute of Technology, Haifa, Israel
| | - Alesandra Campedelli
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Fabrizio Buffolo
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
- Division of Internal Medicine and Hypertension Unite, Department of Medical Sciences, University of Torin, Turin, Italy
| | - Frederick J Schoen
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Jesper Hjortnaes
- Department of Cardiothoracic Surgery, Leiden University Medical Center (LUMC), Leiden, Netherlands
| | - Jochen D Muehlschlegel
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - David J Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02134, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA 02115, USA
| | - Masanori Aikawa
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
- Division of Cardiovascular Medicine, Department of Medicine, Center for Excellence in Vascular Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Sasha A Singh
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Robert Langer
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
- Harvard and MIT Division of Health Science and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Elena Aikawa
- Division of Cardiovascular Medicine, Department of Medicine, Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
- Division of Cardiovascular Medicine, Department of Medicine, Center for Excellence in Vascular Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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6
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Pantakitcharoenkul J, Touma J, Jovanovic G, Coblyn M. Enzyme-functionalized hydrogel film for extracorporeal uric acid reduction. J Biomed Mater Res B Appl Biomater 2024; 112:e35375. [PMID: 38359171 DOI: 10.1002/jbm.b.35375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 11/22/2023] [Accepted: 01/02/2024] [Indexed: 02/17/2024]
Abstract
Enzyme replacement therapy for hyperuricemia treatment has been proven effective for critical state hyperuricemia patients. Still, direct administration of recombinant uricase can induce several fatal side effects. To circumvent this drawback, hydrogel protein carriers can be used in platforms for extracorporeal treatment such as microscale-based devices. In this work, calcium alginate and poly-(vinyl alcohol) hydrogel films were studied for their urate oxidase immobilization and uric acid reduction, which could be implemented in microscale-based extracorporeal devices. A mathematical model was developed in conjunction with uric acid reduction experiments to evaluate the influence of mass transfer and reaction parameters in the Michaelis-Menten kinetic expression. Alginate hydrogels prepared with crosslinker 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide and N-(hydroxysuccinimide) offered superior diffusivity of uric acid in the gel matrix at the maximum value ofD g , UA ≈ $$ {D}_{\mathrm{g},\mathrm{UA}}\approx $$ 1.98 × 10-11 m2 /s compared with alginate prepared solely from ionic crosslinking withD g , UA ≈ $$ {D}_{\mathrm{g},\mathrm{UA}}\approx $$ 5.31 × 10-12 m2 /s at the same alginate concentration. The maximum value of νmax was experimentally determined at 7.78 × 10-5 mol/(m3 s). A 3% sodium alginate hydrogel with crosslinkers yielded the highest reduction of uric acid at 92.70%. The mathematical model demonstrated an excellent prediction of uric acid conversion suggesting potential use of the model for formulation and maximizing the therapeutic performance of functionalized hydrogels.
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Affiliation(s)
- Jaturavit Pantakitcharoenkul
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Oregon, USA
- Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
| | - Jad Touma
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Oregon, USA
| | - Goran Jovanovic
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Oregon, USA
| | - Matthew Coblyn
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Oregon, USA
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7
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Yang Y, Yang H, Kiskin FN, Zhang JZ. The new era of cardiovascular research: revolutionizing cardiovascular research with 3D models in a dish. MEDICAL REVIEW (2021) 2024; 4:68-85. [PMID: 38515776 PMCID: PMC10954298 DOI: 10.1515/mr-2023-0059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 01/18/2024] [Indexed: 03/23/2024]
Abstract
Cardiovascular research has heavily relied on studies using patient samples and animal models. However, patient studies often miss the data from the crucial early stage of cardiovascular diseases, as obtaining primary tissues at this stage is impracticable. Transgenic animal models can offer some insights into disease mechanisms, although they usually do not fully recapitulate the phenotype of cardiovascular diseases and their progression. In recent years, a promising breakthrough has emerged in the form of in vitro three-dimensional (3D) cardiovascular models utilizing human pluripotent stem cells. These innovative models recreate the intricate 3D structure of the human heart and vessels within a controlled environment. This advancement is pivotal as it addresses the existing gaps in cardiovascular research, allowing scientists to study different stages of cardiovascular diseases and specific drug responses using human-origin models. In this review, we first outline various approaches employed to generate these models. We then comprehensively discuss their applications in studying cardiovascular diseases by providing insights into molecular and cellular changes associated with cardiovascular conditions. Moreover, we highlight the potential of these 3D models serving as a platform for drug testing to assess drug efficacy and safety. Despite their immense potential, challenges persist, particularly in maintaining the complex structure of 3D heart and vessel models and ensuring their function is comparable to real organs. However, overcoming these challenges could revolutionize cardiovascular research. It has the potential to offer comprehensive mechanistic insights into human-specific disease processes, ultimately expediting the development of personalized therapies.
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Affiliation(s)
- Yuan Yang
- Institute of Neurological and Psychiatric Disorders, Shenzhen Bay Laboratory, Shenzhen, Guangdong Province, China
| | - Hao Yang
- Institute of Neurological and Psychiatric Disorders, Shenzhen Bay Laboratory, Shenzhen, Guangdong Province, China
| | - Fedir N. Kiskin
- Institute of Neurological and Psychiatric Disorders, Shenzhen Bay Laboratory, Shenzhen, Guangdong Province, China
| | - Joe Z. Zhang
- Institute of Neurological and Psychiatric Disorders, Shenzhen Bay Laboratory, Shenzhen, Guangdong Province, China
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8
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Baek A, Kwon IH, Lee DH, Choi WH, Lee SW, Yoo J, Heo MB, Lee TG. Novel Organoid Culture System for Improved Safety Assessment of Nanomaterials. NANO LETTERS 2024; 24:805-813. [PMID: 38213286 PMCID: PMC10811694 DOI: 10.1021/acs.nanolett.3c02939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/24/2023] [Accepted: 01/03/2024] [Indexed: 01/13/2024]
Abstract
Over the past few decades, the increased application of nanomaterials has raised questions regarding their safety and possible toxic effects. Organoids have been suggested as promising tools, offering efficient assays for nanomaterial-induced toxicity evaluation. However, organoid systems have some limitations, such as size heterogeneity and poor penetration of nanoparticles because of the extracellular matrix, which is necessary for organoid culture. Here, we developed a novel system for the improved safety assessment of nanomaterials by establishing a 3D floating organoid paradigm. In addition to overcoming the limitations of two-dimensional systems including the lack of in vitro-in vivo cross-talk, our method provides multiple benefits as compared with conventional organoid systems that rely on an extracellular matrix for culture. Organoids cultured using our method exhibited relatively uniform sizing and structural integrity and were more conducive to the internalization of nanoparticles. Our floating culture system will accelerate the research and development of safe nanomaterials.
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Affiliation(s)
- Ahruem Baek
- Nano-Safety
Team, Safety Measurement Institute, Korea
Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
| | - Ik Hwan Kwon
- Bioimaging
Team, Safety Measurement Institute, Korea
Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
| | - Da-Hye Lee
- Biomolecular
Measurement Team, Bio-Metrology Group, Korea
Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
| | - Woo Hee Choi
- Department
of Microbiology, CHA University School of
Medicine, Seongnam 13488, Republic
of Korea
- Organoidsciences
Ltd., Seongnam 13488, Republic of Korea
| | - Sang-Won Lee
- Bioimaging
Team, Safety Measurement Institute, Korea
Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
| | - Jongman Yoo
- Department
of Microbiology, CHA University School of
Medicine, Seongnam 13488, Republic
of Korea
- Organoidsciences
Ltd., Seongnam 13488, Republic of Korea
| | - Min Beom Heo
- Nano-Safety
Team, Safety Measurement Institute, Korea
Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
| | - Tae Geol Lee
- Nano-Safety
Team, Safety Measurement Institute, Korea
Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
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9
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Zheng H, Harcum SW, Pei J, Xie W. Stochastic biological system-of-systems modelling for iPSC culture. Commun Biol 2024; 7:39. [PMID: 38191636 PMCID: PMC10774284 DOI: 10.1038/s42003-023-05653-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 11/30/2023] [Indexed: 01/10/2024] Open
Abstract
Large-scale manufacturing of induced pluripotent stem cells (iPSCs) is essential for cell therapies and regenerative medicines. Yet, iPSCs form large cell aggregates in suspension bioreactors, resulting in insufficient nutrient supply and extra metabolic waste build-up for the cells located at the core. Since subtle changes in micro-environment can lead to a heterogeneous cell population, a novel Biological System-of-Systems (Bio-SoS) framework is proposed to model cell-to-cell interactions, spatial and metabolic heterogeneity, and cell response to micro-environmental variation. Building on stochastic metabolic reaction network, aggregation kinetics, and reaction-diffusion mechanisms, the Bio-SoS model characterizes causal interdependencies at individual cell, aggregate, and cell population levels. It has a modular design that enables data integration and improves predictions for different monolayer and aggregate culture processes. In addition, a variance decomposition analysis is derived to quantify the impact of factors (i.e., aggregate size) on cell product health and quality heterogeneity.
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Affiliation(s)
- Hua Zheng
- Mechanical and Industrial Engineering, Northeastern University, Boston, MA, 02115, USA
| | | | - Jinxiang Pei
- Mechanical and Industrial Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Wei Xie
- Mechanical and Industrial Engineering, Northeastern University, Boston, MA, 02115, USA.
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10
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Chiu KH, Karpat M, Hahn J, Chang KY, Weber M, Wolf M, Aveic S, Fischer H. Cyclic Stretching Triggers Cell Orientation and Extracellular Matrix Remodeling in a Periodontal Ligament 3D In Vitro Model. Adv Healthc Mater 2023; 12:e2301422. [PMID: 37703581 DOI: 10.1002/adhm.202301422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/07/2023] [Indexed: 09/15/2023]
Abstract
During orthodontic tooth movement (OTM), the periodontal ligament (PDL) plays a crucial role in regulating the tissue remodeling process. To decipher the cellular and molecular mechanisms underlying this process in vitro, suitable 3D models are needed that more closely approximate the situation in vivo. Here, a customized bioreactor is developed that allows dynamic loading of PDL-derived fibroblasts (PDLF). A collagen-based hydrogel mixture is optimized to maintain structural integrity and constant cell growth during stretching. Numerical simulations show a uniform stress distribution in the hydrogel construct under stretching. Compared to static conditions, controlled cyclic stretching results in directional alignment of collagen fibers and enhances proliferation and spreading ability of the embedded PDLF cells. Effective force transmission to the embedded cells is demonstrated by a more than threefold increase in Periostin protein expression. The cyclic stretch conditions also promote extensive remodeling of the extracellular matrix, as confirmed by increased glycosaminoglycan production. These results highlight the importance of dynamic loading over an extended period of time to determine the behavior of PDLF and to identify in vitro mechanobiological cues triggered during OTM-like stimulus. The introduced dynamic bioreactor is therefore a useful in vitro tool to study these mechanisms.
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Affiliation(s)
- Kuo-Hui Chiu
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Mert Karpat
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Johannes Hahn
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Kao-Yuan Chang
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Michael Weber
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Michael Wolf
- Department of Orthodontics, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Sanja Aveic
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Horst Fischer
- Department of Dental Materials and Biomaterials Research, RWTH Aachen University Hospital, Pauwelsstrasse 30, 52074, Aachen, Germany
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11
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Murphy AR, Allenby MC. In vitro microvascular engineering approaches and strategies for interstitial tissue integration. Acta Biomater 2023; 171:114-130. [PMID: 37717711 DOI: 10.1016/j.actbio.2023.09.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/10/2023] [Accepted: 09/12/2023] [Indexed: 09/19/2023]
Abstract
The increasing gap between clinical demand for tissue or organ transplants and the availability of donated tissue highlights the emerging opportunities for lab-grown or synthetically engineered tissue. While the field of tissue engineering has existed for nearly half a century, its clinical translation remains unrealised, in part, due to a limited ability to engineer sufficient vascular supply into fabricated tissue, which is necessary to enable nutrient and waste exchange, prevent cellular necrosis, and support tissue proliferation. Techniques to develop anatomically relevant, functional vascular networks in vitro have made significant progress in the last decade, however, the challenge now remains as to how best incorporate these throughout dense parenchymal tissue-like structures to address diffusion-limited development and allow for the fabrication of large-scale vascularised tissue. This review explores advances made in the laboratory engineering of vasculature structures and summarises recent attempts to integrate vascular networks together with sophisticated in vitro avascular tissue and organ-like structures. STATEMENT OF SIGNIFICANCE: The ability to grow full scale, functional tissue and organs in vitro is primarily limited by an inability to adequately diffuse oxygen and nutrients throughout developing cellularised structures, which generally results from the absence of perfusable vessel networks. Techniques to engineering both perfusable vascular networks and avascular miniaturised organ-like structures have recently increased in complexity, sophistication, and physiological relevance. However, integrating these two essential elements into a single functioning vascularised tissue structure represents a significant spatial and temporal engineering challenge which is yet to be surmounted. Here, we explore a range of vessel morphogenic phenomena essential for tissue-vascular co-development, as well as evaluate a range of recent noteworthy approaches for generating vascularised tissue products in vitro.
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Affiliation(s)
- A R Murphy
- School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St Lucia, QLD 4100, Australia
| | - M C Allenby
- School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St Lucia, QLD 4100, Australia; Centre for Biomedical Technologies, School of Medical, Mechanical and Process Engineering, Faculty of Engineering, Queensland University of Technology, Kelvin Grove, QLD 4059, Australia.
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12
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Kawecki NS, Norris SCP, Xu Y, Wu Y, Davis AR, Fridman E, Chen KK, Crosbie RH, Garmyn AJ, Li S, Mason TG, Rowat AC. Engineering multicomponent tissue by spontaneous adhesion of myogenic and adipogenic microtissues cultured with customized scaffolds. Food Res Int 2023; 172:113080. [PMID: 37689860 DOI: 10.1016/j.foodres.2023.113080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 09/11/2023]
Abstract
The integration of intramuscular fat-or marbling-into cultured meat will be critical for meat texture, mouthfeel, flavor, and thus consumer appeal. However, culturing muscle tissue with marbling is challenging since myocytes and adipocytes have different media and scaffold requirements for optimal growth and differentiation. Here, we present an approach to engineer multicomponent tissue using myogenic and adipogenic microtissues. The key innovation in our approach is the engineering of myogenic and adipogenic microtissues using scaffolds with customized physical properties; we use these microtissues as building blocks that spontaneously adhere to produce multicomponent tissue, or marbled cultured meat. Myocytes are grown and differentiated on gelatin nanofiber scaffolds with aligned topology that mimic the aligned structure of skeletal muscle and promotes the formation of myotubes in both primary rabbit skeletal muscle and murine C2C12 cells. Pre-adipocytes are cultured and differentiated on edible gelatin microbead scaffolds, which are customized to have a physiologically-relevant stiffness, and promote lipid accumulation in both primary rabbit and murine 3T3-L1 pre-adipocytes. After harvesting and stacking the individual myogenic and adipogenic microtissues, we find that the resultant multicomponent tissues adhere into intact structures within 6-12 h in culture. The resultant multicomponent 3D tissue constructs show behavior of a solid material with a Young's modulus of ∼ 2 ± 0.4 kPa and an ultimate tensile strength of ∼ 23 ± 7 kPa without the use of additional crosslinkers. Using this approach, we generate marbled cultured meat with ∼ mm to ∼ cm thickness, which has a protein content of ∼ 4 ± 2 g/100 g that is comparable to a conventionally produced Wagyu steak with a protein content of ∼ 9 ± 4 g/100 g. We show the translatability of this layer-by-layer assembly approach for microtissues across primary rabbit cells, murine cell lines, as well as for gelatin and plant-based scaffolds, which demonstrates a strategy to generate edible marbled meats derived from different species and scaffold materials.
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Affiliation(s)
- N Stephanie Kawecki
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Sam C P Norris
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yixuan Xu
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yifan Wu
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ashton R Davis
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ester Fridman
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Kathleen K Chen
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Rachelle H Crosbie
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Neurology, David Geffen School of Medicine, University of California LA, USA; Broad Stem Cell Center, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Andrea J Garmyn
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
| | - Song Li
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Broad Stem Cell Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Thomas G Mason
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amy C Rowat
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Broad Stem Cell Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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13
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Chakrabarty K, Nayak D, Debnath J, Das D, Shetty R, Ghosh A. Retinal organoids in disease modeling and drug discovery: Opportunities and challenges. Surv Ophthalmol 2023:S0039-6257(23)00127-3. [PMID: 37778668 DOI: 10.1016/j.survophthal.2023.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 09/25/2023] [Accepted: 09/25/2023] [Indexed: 10/03/2023]
Abstract
Diseases leading to retinal cell loss can cause severe visual impairment and blindness. The lack of effective therapies to address retinal cell loss and the absence of intrinsic regeneration in the human retina leads to an irreversible pathological condition. Progress in recent years in the generation of human three-dimensional retinal organoids from pluripotent stem cells makes it possible to recreate the cytoarchitecture and associated cell-cell interactions of the human retina in remarkable detail. These human three-dimensional retinal organoid systems made of distinct retinal cell types and possessing contextual physiological responses allow the study of human retina development and retinal disease pathology in a way animal model and two-dimensional cell cultures were unable to achieve. We describe the derivation of retinal organoids from human pluripotent stem cells and their application for modeling retinal disease pathologies, while outlining the opportunities and challenges for its application in academia and industry.
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Affiliation(s)
- Koushik Chakrabarty
- GROW Research Laboratory, Narayana Nethralaya Foundation, Bangalore, Karnataka, India.
| | - Divyani Nayak
- GROW Research Laboratory, Narayana Nethralaya Foundation, Bangalore, Karnataka, India
| | - Jayasree Debnath
- GROW Research Laboratory, Narayana Nethralaya Foundation, Bangalore, Karnataka, India
| | - Debashish Das
- Stem Cell Research Lab, GROW Lab, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore, Karnataka, India
| | - Rohit Shetty
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Arkasubhra Ghosh
- GROW Research Laboratory, Narayana Nethralaya Foundation, Bangalore, Karnataka, India
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14
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Dittfeld C, Winkelkotte M, Scheer A, Voigt E, Schmieder F, Behrens S, Jannasch A, Matschke K, Sonntag F, Tugtekin SM. Challenges of aortic valve tissue culture - maintenance of viability and extracellular matrix in the pulsatile dynamic microphysiological system. J Biol Eng 2023; 17:60. [PMID: 37770970 PMCID: PMC10538250 DOI: 10.1186/s13036-023-00377-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 09/14/2023] [Indexed: 09/30/2023] Open
Abstract
BACKGROUND Calcific aortic valve disease (CAVD) causes an increasing health burden in the 21st century due to aging population. The complex pathophysiology remains to be understood to develop novel prevention and treatment strategies. Microphysiological systems (MPSs), also known as organ-on-chip or lab-on-a-chip systems, proved promising in bridging in vitro and in vivo approaches by applying integer AV tissue and modelling biomechanical microenvironment. This study introduces a novel MPS comprising different micropumps in conjunction with a tissue-incubation-chamber (TIC) for long-term porcine and human AV incubation (pAV, hAV). RESULTS Tissue cultures in two different MPS setups were compared and validated by a bimodal viability analysis and extracellular matrix transformation assessment. The MPS-TIC conjunction proved applicable for incubation periods of 14-26 days. An increased metabolic rate was detected for pulsatile dynamic MPS culture compared to static condition indicated by increased LDH intensity. ECM changes such as an increase of collagen fibre content in line with tissue contraction and mass reduction, also observed in early CAVD, were detected in MPS-TIC culture, as well as an increase of collagen fibre content. Glycosaminoglycans remained stable, no significant alterations of α-SMA or CD31 epitopes and no accumulation of calciumhydroxyapatite were observed after 14 days of incubation. CONCLUSIONS The presented ex vivo MPS allows long-term AV tissue incubation and will be adopted for future investigation of CAVD pathophysiology, also implementing human tissues. The bimodal viability assessment and ECM analyses approve reliability of ex vivo CAVD investigation and comparability of parallel tissue segments with different treatment strategies regarding the AV (patho)physiology.
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Affiliation(s)
- Claudia Dittfeld
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstr. 76, 01307, Dresden, Germany.
| | - Maximilian Winkelkotte
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstr. 76, 01307, Dresden, Germany
| | - Anna Scheer
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstr. 76, 01307, Dresden, Germany
| | - Emmely Voigt
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstr. 76, 01307, Dresden, Germany
| | - Florian Schmieder
- Fraunhofer Institute for Material and Beam Technology IWS, Dresden, Germany
| | - Stephan Behrens
- Fraunhofer Institute for Material and Beam Technology IWS, Dresden, Germany
| | - Anett Jannasch
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstr. 76, 01307, Dresden, Germany
| | - Klaus Matschke
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstr. 76, 01307, Dresden, Germany
| | - Frank Sonntag
- Fraunhofer Institute for Material and Beam Technology IWS, Dresden, Germany
| | - Sems-Malte Tugtekin
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstr. 76, 01307, Dresden, Germany
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15
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Hassan S, Wang T, Shi K, Huang Y, Urbina Lopez ME, Gan K, Chen M, Willemen N, Kalam H, Luna-Ceron E, Cecen B, Elbait GD, Li J, Garcia-Rivera LE, Gurian M, Banday MM, Yang K, Lee MC, Zhuang W, Johnbosco C, Jeon O, Alsberg E, Leijten J, Shin SR. Self-oxygenation of engineered living tissues orchestrates osteogenic commitment of mesenchymal stem cells. Biomaterials 2023; 300:122179. [PMID: 37315386 PMCID: PMC10330822 DOI: 10.1016/j.biomaterials.2023.122179] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 04/12/2023] [Accepted: 05/25/2023] [Indexed: 06/16/2023]
Abstract
Oxygenating biomaterials can alleviate anoxic stress, stimulate vascularization, and improve engraftment of cellularized implants. However, the effects of oxygen-generating materials on tissue formation have remained largely unknown. Here, we investigate the impact of calcium peroxide (CPO)-based oxygen-generating microparticles (OMPs) on the osteogenic fate of human mesenchymal stem cells (hMSCs) under a severely oxygen deficient microenvironment. To this end, CPO is microencapsulated in polycaprolactone to generate OMPs with prolonged oxygen release. Gelatin methacryloyl (GelMA) hydrogels containing osteogenesis-inducing silicate nanoparticles (SNP hydrogels), OMPs (OMP hydrogels), or both SNP and OMP (SNP/OMP hydrogels) are engineered to comparatively study their effect on the osteogenic fate of hMSCs. OMP hydrogels associate with improved osteogenic differentiation under both normoxic and anoxic conditions. Bulk mRNAseq analyses suggest that OMP hydrogels under anoxia regulate osteogenic differentiation pathways more strongly than SNP/OMP or SNP hydrogels under either anoxia or normoxia. Subcutaneous implantations reveal a stronger host cell invasion in SNP hydrogels, resulting in increased vasculogenesis. Furthermore, time-dependent expression of different osteogenic factors reveals progressive differentiation of hMSCs in OMP, SNP, and SNP/OMP hydrogels. Our work demonstrates that endowing hydrogels with OMPs can induce, improve, and steer the formation of functional engineered living tissues, which holds potential for numerous biomedical applications, including tissue regeneration and organ replacement therapy.
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Affiliation(s)
- Shabir Hassan
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA; Department of Biology, College of Arts and Sciences, Khalifa University (Main Campus), Abu Dhabi, P.O. Box, 127788, United Arab Emirates; Advanced Materials Chemistry Center (AMCC), Khalifa University (SAN Campus), Abu Dhabi, P.O. Box, 127788, United Arab Emirates
| | - Ting Wang
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA; Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, 210029, China
| | - Kun Shi
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA; Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yike Huang
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA
| | - Maria Elizabeth Urbina Lopez
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA
| | - Kaifeng Gan
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA
| | - Mo Chen
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA
| | - Niels Willemen
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA; Leijten Lab, Department of Developmental Bioengineering, Faculty of Science and Technology, TechMed Centre, University Twente, Enschede, 7522 NB, the Netherlands
| | - Haroon Kalam
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA, 02139, USA
| | - Eder Luna-Ceron
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA
| | - Berivan Cecen
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA
| | - Gihan Daw Elbait
- Department of Biology, College of Arts and Sciences, Khalifa University (Main Campus), Abu Dhabi, P.O. Box, 127788, United Arab Emirates
| | - Jinghang Li
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA
| | - Luis Enrique Garcia-Rivera
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA
| | - Melvin Gurian
- Leijten Lab, Department of Developmental Bioengineering, Faculty of Science and Technology, TechMed Centre, University Twente, Enschede, 7522 NB, the Netherlands
| | - Mudassir Meraj Banday
- Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Kisuk Yang
- Center for Nanomedicine, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA; Division of Bioengineering, College of Life Sciences and Bioengineering, Incheon National University, Incheon, 22012, Republic of Korea
| | - Myung Chul Lee
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA
| | - Weida Zhuang
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA
| | - Castro Johnbosco
- Leijten Lab, Department of Developmental Bioengineering, Faculty of Science and Technology, TechMed Centre, University Twente, Enschede, 7522 NB, the Netherlands
| | - Oju Jeon
- Department of Biomedical Engineering, University of Illinois Chicago, Chicago, IL, 60612, USA
| | - Eben Alsberg
- Department of Biomedical Engineering, University of Illinois Chicago, Chicago, IL, 60612, USA; Departments of Orthopaedic Surgery, Pharmacology and Regenerative Medicine, and Mechanical and Industrial Engineering, University of Illinois Chicago, Chicago, IL, 60612, USA
| | - Jeroen Leijten
- Leijten Lab, Department of Developmental Bioengineering, Faculty of Science and Technology, TechMed Centre, University Twente, Enschede, 7522 NB, the Netherlands.
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, and Brigham and Women's Hospital, Cambridge, MA, 02139, USA.
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16
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Berg M, Eleftheriadou D, Phillips JB, Shipley RJ. Mathematical modelling with Bayesian inference to quantitatively characterize therapeutic cell behaviour in nerve tissue engineering. J R Soc Interface 2023; 20:20230258. [PMID: 37669694 PMCID: PMC10480012 DOI: 10.1098/rsif.2023.0258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 08/15/2023] [Indexed: 09/07/2023] Open
Abstract
Cellular engineered neural tissues have significant potential to improve peripheral nerve repair strategies. Traditional approaches depend on quantifying tissue behaviours using experiments in isolation, presenting a challenge for an overarching framework for tissue design. By comparison, mathematical cell-solute models benchmarked against experimental data enable computational experiments to be performed to test the role of biological/biophysical mechanisms, as well as to explore the impact of different design scenarios and thus accelerate the development of new treatment strategies. Such models generally consist of a set of continuous, coupled, partial differential equations relying on a number of parameters and functional forms. They necessitate dedicated in vitro experiments to be informed, which are seldom available and often involve small datasets with limited spatio-temporal resolution, generating uncertainties. We address this issue and propose a pipeline based on Bayesian inference enabling the derivation of experimentally informed cell-solute models describing therapeutic cell behaviour in nerve tissue engineering. We apply our pipeline to three relevant cell types and obtain models that can readily be used to simulate nerve repair scenarios and quantitatively compare therapeutic cells. Beyond parameter estimation, the proposed pipeline enables model selection as well as experiment utility quantification, aimed at improving both model formulation and experimental design.
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Affiliation(s)
- Maxime Berg
- Centre for Nerve Engineering, University College London, WC1E 6BT London, UK
- Department of Mechanical Engineering, University College London, WC1E 6BT London, UK
| | - Despoina Eleftheriadou
- Centre for Nerve Engineering, University College London, WC1E 6BT London, UK
- School of Pharmacy, University College London, WC1N 1AX London, UK
| | - James B. Phillips
- Centre for Nerve Engineering, University College London, WC1E 6BT London, UK
- School of Pharmacy, University College London, WC1N 1AX London, UK
| | - Rebecca J. Shipley
- Centre for Nerve Engineering, University College London, WC1E 6BT London, UK
- Department of Mechanical Engineering, University College London, WC1E 6BT London, UK
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17
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Fernandes TG. Organoids as complex (bio)systems. Front Cell Dev Biol 2023; 11:1268540. [PMID: 37691827 PMCID: PMC10485618 DOI: 10.3389/fcell.2023.1268540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 08/14/2023] [Indexed: 09/12/2023] Open
Abstract
Organoids are three-dimensional structures derived from stem cells that mimic the organization and function of specific organs, making them valuable tools for studying complex systems in biology. This paper explores the application of complex systems theory to understand and characterize organoids as exemplars of intricate biological systems. By identifying and analyzing common design principles observed across diverse natural, technological, and social complex systems, we can gain insights into the underlying mechanisms governing organoid behavior and function. This review outlines general design principles found in complex systems and demonstrates how these principles manifest within organoids. By acknowledging organoids as representations of complex systems, we can illuminate our understanding of their normal physiological behavior and gain valuable insights into the alterations that can lead to disease. Therefore, incorporating complex systems theory into the study of organoids may foster novel perspectives in biology and pave the way for new avenues of research and therapeutic interventions to improve human health and wellbeing.
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Affiliation(s)
- Tiago G. Fernandes
- Department of Bioengineering and iBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
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18
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Licata JP, Schwab KH, Har-El YE, Gerstenhaber JA, Lelkes PI. Bioreactor Technologies for Enhanced Organoid Culture. Int J Mol Sci 2023; 24:11427. [PMID: 37511186 PMCID: PMC10380004 DOI: 10.3390/ijms241411427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
An organoid is a 3D organization of cells that can recapitulate some of the structure and function of native tissue. Recent work has seen organoids gain prominence as a valuable model for studying tissue development, drug discovery, and potential clinical applications. The requirements for the successful culture of organoids in vitro differ significantly from those of traditional monolayer cell cultures. The generation and maturation of high-fidelity organoids entails developing and optimizing environmental conditions to provide the optimal cues for growth and 3D maturation, such as oxygenation, mechanical and fluidic activation, nutrition gradients, etc. To this end, we discuss the four main categories of bioreactors used for organoid culture: stirred bioreactors (SBR), microfluidic bioreactors (MFB), rotating wall vessels (RWV), and electrically stimulating (ES) bioreactors. We aim to lay out the state-of-the-art of both commercial and in-house developed bioreactor systems, their benefits to the culture of organoids derived from various cells and tissues, and the limitations of bioreactor technology, including sterilization, accessibility, and suitability and ease of use for long-term culture. Finally, we discuss future directions for improvements to existing bioreactor technology and how they may be used to enhance organoid culture for specific applications.
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Affiliation(s)
- Joseph P Licata
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, PA 19122, USA
| | - Kyle H Schwab
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, PA 19122, USA
- Neurobiology, Neurodegeneration & Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Yah-El Har-El
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, PA 19122, USA
| | - Jonathan A Gerstenhaber
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, PA 19122, USA
| | - Peter I Lelkes
- Department of Bioengineering, College of Engineering, Temple University, Philadelphia, PA 19122, USA
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19
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Lian L, Sun Z, Zhang J, Gu S, Xia C, Gan K. Preparation, characterization and biocompatibility of calcium peroxide-loaded polycaprolactone microparticles. Zhejiang Da Xue Xue Bao Yi Xue Ban 2023; 52:296-305. [PMID: 37476941 PMCID: PMC10409898 DOI: 10.3724/zdxbyxb-2022-0696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 05/31/2023] [Indexed: 07/22/2023]
Abstract
OBJECTIVES To explore the physicochemical characteristics and biocompatibility of calcium peroxide (CPO)-loaded polycaprolactone (PCL) microparticle. METHODS The CPO/PCL particles were prepared. The morphology and elemental distribution of CPO, PCL and CPO/PCL particles were observed with scanning electron microscopy and energy dispersive spectroscopy, respectively. Rat adipose mesenchymal stem cells were isolated and treated with different concentrations (0.10%, 0.25%, 0.50%, 1.00%) of CPO or CPO/PCL particles. The mesenchymal stem cells were cultured in normal media or osteogenic differentiation media under the hypoxia/normoxia conditions, and the amount of released O2 and H2O2 after CPO/PCL treatment were detected. The gene expressions of alkaline phosphatase (ALP), Runt-associated transcription factor 2 (RUNX2), osteopontin (OPN) and osteocalcin (OCN) were detected by realtime RT-PCR. SD rats were subcutaneously injected with 1.00% CPO/PCL particles and the pathological changes and infiltration of immune cells were observed with HE staining and immunohistochemistry at day 7 and day 14 after injection. RESULTS Scanning electron microscope showed that CPO particles had a polygonal structure, PCL particles were in a small spherical plastic particle state, and CPO/PCL particles had a block-like crystal structure. Energy dispersive spectroscopy revealed that PCL particles showed no calcium mapping, while CPO/PCL particles showed obvious and uniform calcium mapping. The concentrations of O2 and H2O2 released by CPO/PCL particles were lower than those of CPO group, and the oxygen release time was longer. The expressions of Alp, Runx2, Ocn and Opn increased with the higher content of CPO/PCL particles under hypoxia in osteogenic differentiation culture and normal culture, and the induction was more obvious under osteogenic differentiation conditions (all P<0.05). HE staining results showed that the muscle tissue fibers around the injection site were scattered and disorderly distributed, with varying sizes and thicknesses at day 7 after particle injection. Significant vascular congestion, widened gaps, mild interstitial congestion, local edema, inflammatory cell infiltration, and large area vacuolization were observed in some tissues of rats. At day 14 after microparticle injection, the muscle tissue around the injection site and the tissue fibers at the microparticle implantation site were arranged neatly, and the gap size was not thickened, the vascular congestion, local inflammatory cell infiltration, and vacuolization were significantly improved compared with those at day 7. The immunohistochemical staining results showed that the expressions of CD3 and CD68 positive cells significantly increased in the surrounding muscle tissue, and were densely distributed in a large area at day 7 after particle injection. At day 14 of microparticle injection, the numbers of CD3 and CD68 positive cells in peripheral muscle tissue and tissue at the site of particle implantation were lower than those at day 7 (all P<0.01). CONCLUSIONS CPO/PCL particles have good oxygen release activity, low damage to tissue, and excellent biocompatibility.
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Affiliation(s)
- Leidong Lian
- Medical School of Ningbo University, Ningbo 315000, Zhejiang Province, China.
| | - Zechen Sun
- Department of Orthopedics, Yuyao Fourth People's Hospital, Ningbo 315400, Zhejiang Province, China
| | - Jinhao Zhang
- Medical School of Ningbo University, Ningbo 315000, Zhejiang Province, China
| | - Shirong Gu
- Department of Orthopedics, Li Huili Hospital Affiliated to Ningbo University, Ningbo 315046, Zhejiang Province, China
| | - Chenjie Xia
- Department of Orthopedics, Li Huili Hospital Affiliated to Ningbo University, Ningbo 315046, Zhejiang Province, China
| | - Kaifeng Gan
- Department of Orthopedics, Li Huili Hospital Affiliated to Ningbo University, Ningbo 315046, Zhejiang Province, China.
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20
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Fabbri R, Cacopardo L, Ahluwalia A, Magliaro C. Advanced 3D Models of Human Brain Tissue Using Neural Cell Lines: State-of-the-Art and Future Prospects. Cells 2023; 12:1181. [PMID: 37190089 PMCID: PMC10136913 DOI: 10.3390/cells12081181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 05/17/2023] Open
Abstract
Human-relevant three-dimensional (3D) models of cerebral tissue can be invaluable tools to boost our understanding of the cellular mechanisms underlying brain pathophysiology. Nowadays, the accessibility, isolation and harvesting of human neural cells represents a bottleneck for obtaining reproducible and accurate models and gaining insights in the fields of oncology, neurodegenerative diseases and toxicology. In this scenario, given their low cost, ease of culture and reproducibility, neural cell lines constitute a key tool for developing usable and reliable models of the human brain. Here, we review the most recent advances in 3D constructs laden with neural cell lines, highlighting their advantages and limitations and their possible future applications.
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Affiliation(s)
- Rachele Fabbri
- Research Center “E. Piaggio”, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
- Department of Information Engineering (DII), University of Pisa, Via G. Caruso 16, 56122 Pisa, Italy
| | - Ludovica Cacopardo
- Research Center “E. Piaggio”, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
- Department of Information Engineering (DII), University of Pisa, Via G. Caruso 16, 56122 Pisa, Italy
- Interuniversity Center for the Promotion of 3R Principles in Teaching and Research (Centro 3R), Italy
| | - Arti Ahluwalia
- Research Center “E. Piaggio”, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
- Department of Information Engineering (DII), University of Pisa, Via G. Caruso 16, 56122 Pisa, Italy
- Interuniversity Center for the Promotion of 3R Principles in Teaching and Research (Centro 3R), Italy
| | - Chiara Magliaro
- Research Center “E. Piaggio”, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
- Department of Information Engineering (DII), University of Pisa, Via G. Caruso 16, 56122 Pisa, Italy
- Interuniversity Center for the Promotion of 3R Principles in Teaching and Research (Centro 3R), Italy
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21
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Mulder LA, Depla JA, Sridhar A, Wolthers K, Pajkrt D, Vieira de Sá R. A beginner's guide on the use of brain organoids for neuroscientists: a systematic review. Stem Cell Res Ther 2023; 14:87. [PMID: 37061699 PMCID: PMC10105545 DOI: 10.1186/s13287-023-03302-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 03/27/2023] [Indexed: 04/17/2023] Open
Abstract
BACKGROUND The first human brain organoid protocol was presented in the beginning of the previous decade, and since then, the field witnessed the development of many new brain region-specific models, and subsequent protocol adaptations and modifications. The vast amount of data available on brain organoid technology may be overwhelming for scientists new to the field and consequently decrease its accessibility. Here, we aimed at providing a practical guide for new researchers in the field by systematically reviewing human brain organoid publications. METHODS Articles published between 2010 and 2020 were selected and categorised for brain organoid applications. Those describing neurodevelopmental studies or protocols for novel organoid models were further analysed for culture duration of the brain organoids, protocol comparisons of key aspects of organoid generation, and performed functional characterisation assays. We then summarised the approaches taken for different models and analysed the application of small molecules and growth factors used to achieve organoid regionalisation. Finally, we analysed articles for organoid cell type compositions, the reported time points per cell type, and for immunofluorescence markers used to characterise different cell types. RESULTS Calcium imaging and patch clamp analysis were the most frequently used neuronal activity assays in brain organoids. Neural activity was shown in all analysed models, yet network activity was age, model, and assay dependent. Induction of dorsal forebrain organoids was primarily achieved through combined (dual) SMAD and Wnt signalling inhibition. Ventral forebrain organoid induction was performed with dual SMAD and Wnt signalling inhibition, together with additional activation of the Shh pathway. Cerebral organoids and dorsal forebrain model presented the most cell types between days 35 and 60. At 84 days, dorsal forebrain organoids contain astrocytes and potentially oligodendrocytes. Immunofluorescence analysis showed cell type-specific application of non-exclusive markers for multiple cell types. CONCLUSIONS We provide an easily accessible overview of human brain organoid cultures, which may help those working with brain organoids to define their choice of model, culture time, functional assay, differentiation, and characterisation strategies.
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Affiliation(s)
- Lance A Mulder
- Department of Paediatric Infectious Diseases, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands.
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands.
| | - Josse A Depla
- Department of Paediatric Infectious Diseases, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands
- uniQure Biopharma B.V., Amsterdam, The Netherlands
| | - Adithya Sridhar
- Department of Paediatric Infectious Diseases, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands
| | - Katja Wolthers
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands
| | - Dasja Pajkrt
- Department of Paediatric Infectious Diseases, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands
| | - Renata Vieira de Sá
- Department Medical Microbiology, OrganoVIR Labs, Amsterdam UMC Location University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, the Netherlands
- uniQure Biopharma B.V., Amsterdam, The Netherlands
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22
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Prendergast ME, Heo SJ, Mauck RL, Burdick JA. Suspension bath bioprinting and maturation of anisotropic meniscal constructs. Biofabrication 2023; 15:10.1088/1758-5090/acc3c3. [PMID: 36913724 PMCID: PMC10156462 DOI: 10.1088/1758-5090/acc3c3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 03/13/2023] [Indexed: 03/14/2023]
Abstract
Due to limited intrinsic healing capacity of the meniscus, meniscal injuries pose a significant clinical challenge. The most common method for treatment of damaged meniscal tissues, meniscectomy, leads to improper loading within the knee joint, which can increase the risk of osteoarthritis. Thus, there is a clinical need for the development of constructs for meniscal repair that better replicate meniscal tissue organization to improve load distributions and function over time. Advanced three-dimensional bioprinting technologies such as suspension bath bioprinting provide some key advantages, such as the ability to support the fabrication of complex structures using non-viscous bioinks. In this work, the suspension bath printing process is utilized to print anisotropic constructs with a unique bioink that contains embedded hydrogel fibers that align via shear stresses during printing. Constructs with and without fibers are printed and then cultured for up to 56 din vitroin a custom clamping system. Printed constructs with fibers demonstrate increased cell and collagen alignment, as well as enhanced tensile moduli when compared to constructs printed without fibers. This work advances the use of biofabrication to develop anisotropic constructs that can be utilized for the repair of meniscal tissue.
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Affiliation(s)
| | - Su-Jin Heo
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104 USA
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, USA
| | - Robert L. Mauck
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104 USA
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, USA
| | - Jason A. Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104 USA
- BioFrontiers Institute, University of Colorado Boulder, Boulder, CO 80303, USA
- Department of Chemical and Biological Engineering, College of Engineering and Applied Science, University of Colorado Boulder, Boulder, CO 80303, USA
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23
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Abstract
Despite enormous advances, cardiovascular disorders are still a major threat to global health and are responsible for one-third of deaths worldwide. Research for new therapeutics and the investigation of their effects on vascular parameters is often limited by species-specific pathways and a lack of high-throughput methods. The complex 3-dimensional environment of blood vessels, intricate cellular crosstalks, and organ-specific architectures further complicate the quest for a faithful human in vitro model. The development of novel organoid models of various tissues such as brain, gut, and kidney signified a leap for the field of personalized medicine and disease research. By utilizing either embryonic- or patient-derived stem cells, different developmental and pathological mechanisms can be modeled and investigated in a controlled in vitro environment. We have recently developed self-organizing human capillary blood vessel organoids that recapitulate key processes of vasculogenesis, angiogenesis, and diabetic vasculopathy. Since then, this organoid system has been utilized as a model for other disease processes, refined, and adapted for organ specificity. In this review, we will discuss novel and alternative approaches to blood vessel engineering and explore the cellular identity of engineered blood vessels in comparison to in vivo vasculature. Future perspectives and the therapeutic potential of blood vessel organoids will be discussed.
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Affiliation(s)
- Kirill Salewskij
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna (K.S., J.M.P.).,Vienna BioCenter PhD Program, Doctoral School of the University of Vienna and Medical University of Vienna, Austria (K.S.)
| | - Josef M Penninger
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna (K.S., J.M.P.).,Department of Medical Genetics, Life Sciences Institute, University of British Columbia, Vancouver, Canada (J.M.P.)
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24
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Kumar H, Dixit K, Sharma R, MacDonald ME, Sinha N, Kim K. Closed-loop vasculature network design for bioprinting large, solid tissue scaffolds. Biofabrication 2023; 15. [PMID: 36716495 DOI: 10.1088/1758-5090/acb73c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 01/30/2023] [Indexed: 01/31/2023]
Abstract
Vascularization is an indispensable requirement for fabricating large solid tissues and organs. The natural vasculature derived from medical imaging modalities for large tissues and organs are highly complex and convoluted. However, the present bioprinting capabilities limit the fabrication of such complex natural vascular networks. Simplified bioprinted vascular networks, on the other hand, lack the capability to sustain large solid tissues. This work proposes a generalized and adaptable numerical model to design the vasculature by utilizing the tissue/organ anatomy. Starting with processing the patient's medical images, organ structure, tissue-specific cues, and key vasculature tethers are determined. An open-source abdomen magnetic resonance image dataset was used in this work. The extracted properties and cues are then used in a mathematical model for guiding the vascular network formation comprising arterial and venous networks. Next, the generated three-dimensional networks are used to simulate the nutrient transport and consumption within the organ over time and the regions deprived of the nutrients are identified. These regions provide cues to evolve and optimize the vasculature in an iterative manner to ensure the availability of the nutrient transport throughout the bioprinted scaffolds. The mass transport of six components of cell culture media-glucose, glycine, glutamine, riboflavin, human serum albumin, and oxygen was studied within the organ with designed vasculature. As the vascular structure underwent iterations, the organ regions deprived of these key components decreased significantly highlighting the increase in structural complexity and efficacy of the designed vasculature. The numerical method presented in this work offers a valuable tool for designing vascular scaffolds to guide the cell growth and maturation of the bioprinted tissues for faster regeneration post bioprinting.
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Affiliation(s)
- Hitendra Kumar
- School of Engineering, University of British Columbia, Kelowna, BC V1V 1V7, Canada.,Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Kartikeya Dixit
- Biomedical Research Lab, Department of Mechanical Engineering, Indian Institute of Technology, Kanpur 208016, India
| | - Rohan Sharma
- Department of Chemical and Biological Engineering, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - M Ethan MacDonald
- Department of Electrical and Software Engineering, University of Calgary, Calgary, Alberta T2N 1N4, Canada.,Department of Biomedical Engineering, University of Calgary, Calgary, Alberta T2N 1N4, Canada.,Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Niraj Sinha
- Biomedical Research Lab, Department of Mechanical Engineering, Indian Institute of Technology, Kanpur 208016, India
| | - Keekyoung Kim
- Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Alberta T2N 1N4, Canada.,Department of Biomedical Engineering, University of Calgary, Calgary, Alberta T2N 1N4, Canada
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25
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Nikonorova VG, Chrishtop VV, Mironov VA, Prilepskii AY. Advantages and Potential Benefits of Using Organoids in Nanotoxicology. Cells 2023; 12:cells12040610. [PMID: 36831277 PMCID: PMC9954166 DOI: 10.3390/cells12040610] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/10/2023] [Accepted: 02/11/2023] [Indexed: 02/16/2023] Open
Abstract
Organoids are microtissues that recapitulate the complex structural organization and functions of tissues and organs. Nanoparticles have several specific properties that must be considered when replacing animal models with in vitro studies, such as the formation of a protein corona, accumulation, ability to overcome tissue barriers, and different severities of toxic effects in different cell types. An increase in the number of articles on toxicology research using organoid models is related to an increase in publications on organoids in general but is not related to toxicology-based publications. We demonstrate how the quantitative assessment of toxic changes in the structure of organoids and the state of their cell collections provide more valuable results for toxicological research and provide examples of research methods. The impact of the tested materials on organoids and their differences are also discussed. In conclusion, we highlight the main challenges, the solution of which will allow researchers to approach the replacement of in vivo research with in vitro research: biobanking and standardization of the structural characterization of organoids, and the development of effective screening imaging techniques for 3D organoid cell organization.
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26
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Kim MH, Lin CC. Poly(ethylene glycol)-Norbornene as a Photoclick Bioink for Digital Light Processing 3D Bioprinting. ACS APPLIED MATERIALS & INTERFACES 2023; 15:2737-2746. [PMID: 36608274 DOI: 10.1021/acsami.2c20098] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Digital light processing (DLP) bioprinting is an emerging technology for three-dimensional bioprinting (3DBP) owing to its high printing fidelity, fast fabrication speed, and higher printing resolution. Low-viscosity bioinks such as poly(ethylene glycol) diacrylate (PEGDA) are commonly used for DLP-based bioprinting. However, the cross-linking of PEGDA proceeds via chain-growth photopolymerization that displays significant heterogeneity in cross-linking density. In contrast, step-growth thiol-norbornene photopolymerization is not oxygen inhibited and produces hydrogels with an ideal network structure. The high cytocompatibility and rapid gelation of thiol-norbornene photopolymerization have lent itself to the cross-linking of cell-laden hydrogels but have not been extensively used for DLP bioprinting. In this study, we explored eight-arm PEG-norbornene (PEG8NB) as a bioink/resin for visible light-initiated DLP-based 3DBP. The PEG8NB-based DLP resin showed high printing fidelity and cytocompatibility even without the use of any bioactive motifs and high initial stiffness. In addition, we demonstrated the versatility of the PEGNB resin by printing solid structures as cell culture devices, hollow channels for endothelialization, and microwells for generating cell spheroids. This work not only expands the selection of bioinks for DLP-based 3DBP but also provides a platform for dynamic modification of the bioprinted constructs.
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Affiliation(s)
- Min Hee Kim
- Department of Biomedical Engineering, Purdue School of Engineering & Technology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Chien-Chi Lin
- Department of Biomedical Engineering, Purdue School of Engineering & Technology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202, United States
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27
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Jurado A, Ulldemolins A, Lluís H, Gasull X, Gavara N, Sunyer R, Otero J, Gozal D, Almendros I, Farré R. Fast cycling of intermittent hypoxia in a physiomimetic 3D environment: A novel tool for the study of the parenchymal effects of sleep apnea. Front Pharmacol 2023; 13:1081345. [PMID: 36712654 PMCID: PMC9879064 DOI: 10.3389/fphar.2022.1081345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/28/2022] [Indexed: 01/15/2023] Open
Abstract
Background: Patients with obstructive sleep apnea (OSA) experience recurrent hypoxemic events with a frequency sometimes exceeding 60 events/h. These episodic events induce downstream transient hypoxia in the parenchymal tissue of all organs, thereby eliciting the pathological consequences of OSA. Whereas experimental models currently apply intermittent hypoxia to cells conventionally cultured in 2D plates, there is no well-characterized setting that will subject cells to well-controlled intermittent hypoxia in a 3D environment and enable the study of the effects of OSA on the cells of interest while preserving the underlying tissue environment. Aim: To design and characterize an experimental approach that exposes cells to high-frequency intermittent hypoxia mimicking OSA in 3D (hydrogels or tissue slices). Methods: Hydrogels made from lung extracellular matrix (L-ECM) or brain tissue slices (300-800-μm thickness) were placed on a well whose bottom consisted of a permeable silicone membrane. The chamber beneath the membrane was subjected to a square wave of hypoxic/normoxic air. The oxygen concentration at different depths within the hydrogel/tissue slice was measured with an oxygen microsensor. Results: 3D-seeded cells could be subjected to well-controlled and realistic intermittent hypoxia patterns mimicking 60 apneas/h when cultured in L-ECM hydrogels ≈500 μm-thick or ex-vivo in brain slices 300-500 μm-thick. Conclusion: This novel approach will facilitate the investigation of the effects of intermittent hypoxia simulating OSA in 3D-residing cells within the parenchyma of different tissues/organs.
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Affiliation(s)
- Alicia Jurado
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
| | - Anna Ulldemolins
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
| | - Helena Lluís
- Neurophysiology Laboratory, Department of Biomedicine, School of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Spain,Institut Investigacions Biomèdiques August Pi Sunyer, Barcelona, Spain
| | - Xavier Gasull
- Neurophysiology Laboratory, Department of Biomedicine, School of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Spain,Institut Investigacions Biomèdiques August Pi Sunyer, Barcelona, Spain
| | - Núria Gavara
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain,The Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Raimon Sunyer
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain,The Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Jorge Otero
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain,The Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain,CIBER de Enfermedades Respiratorias, Madrid, Spain
| | - David Gozal
- Department of Child Health, The University of Missouri School of Medicine, Columbia, KY, United States
| | - Isaac Almendros
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain,Institut Investigacions Biomèdiques August Pi Sunyer, Barcelona, Spain,CIBER de Enfermedades Respiratorias, Madrid, Spain
| | - Ramon Farré
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain,Institut Investigacions Biomèdiques August Pi Sunyer, Barcelona, Spain,CIBER de Enfermedades Respiratorias, Madrid, Spain,*Correspondence: Ramon Farré,
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28
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Jeong E, Choi S, Cho SW. Recent Advances in Brain Organoid Technology for Human Brain Research. ACS APPLIED MATERIALS & INTERFACES 2023; 15:200-219. [PMID: 36468535 DOI: 10.1021/acsami.2c17467] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Brain organoids are self-assembled three-dimensional aggregates with brain-like cell types and structures and have emerged as new model systems that can be used to investigate human neurodevelopment and neurological disorders. However, brain organoids are not as mature and functional as real human brains due to limitations of the culture system with insufficient developmental patterning signals and a lack of components that are important for brain development and function, such as the non-neural population and vasculature. In addition, establishing the desired brain-like environment and monitoring the complex neural networks and physiological functions of the brain organoids remain challenging. The current protocols to generate brain organoids also have problems with heterogeneity and batch variation due to spontaneous self-organization of brain organoids into complex architectures of the brain. To address these limitations of current brain organoid technologies, various engineering platforms, such as extracellular matrices, fluidic devices, three-dimensional bioprinting, bioreactors, polymeric scaffolds, microelectrodes, and biochemical sensors, have been employed to improve neuronal development and maturation, reduce structural heterogeneity, and facilitate functional analysis and monitoring. In this review, we provide an overview of the latest engineering techniques that overcome these limitations in the production and application of brain organoids.
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Affiliation(s)
- Eunseon Jeong
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Suah Choi
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME), Advanced Science Institute, Yonsei University, Seoul 03722, Republic of Korea
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29
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Wandishin CM, Robbins CJ, Tyson DR, Harris LA, Quaranta V. Real-time luminescence enables continuous drug-response analysis in adherent and suspension cell lines. Cancer Biol Ther 2022; 23:358-368. [PMID: 35443861 PMCID: PMC9037430 DOI: 10.1080/15384047.2022.2065182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/30/2022] [Accepted: 04/04/2022] [Indexed: 11/11/2022] Open
Abstract
The drug-induced proliferation (DIP) rate is a metric of in vitro drug response that avoids inherent biases in commonly used metrics such as 72 h viability. However, DIP rate measurements rely on direct cell counting over time, a laborious task that is subject to numerous challenges, including the need to fluorescently label cells and automatically segment nuclei. Moreover, it is incredibly difficult to directly count cells and accurately measure DIP rates for cell populations in suspension. As an alternative, we use real-time luminescence measurements derived from the cellular activity of NAD(P)H oxidoreductase to efficiently estimate drug response in both adherent and suspension cell populations to a panel of known anticancer agents. For the adherent cell lines, we collect both luminescence reads and direct cell counts over time simultaneously to assess their congruency. Our results demonstrate that the proposed approach significantly speeds up data collection, avoids the need for cellular labels and image segmentation, and opens the door to significant advances in high-throughput screening of anticancer drugs.
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Affiliation(s)
| | - Charles John Robbins
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TNUSA
| | - Darren R. Tyson
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TNUSA
| | - Leonard A. Harris
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, ARUSA
| | - Vito Quaranta
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TNUSA
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Thalheim T, Aust G, Galle J. Organoid Cultures In Silico: Tools or Toys? BIOENGINEERING (BASEL, SWITZERLAND) 2022; 10:bioengineering10010050. [PMID: 36671623 PMCID: PMC9854934 DOI: 10.3390/bioengineering10010050] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 01/03/2023]
Abstract
The implementation of stem-cell-based organoid culture more than ten years ago started a development that created new avenues for diagnostic analyses and regenerative medicine. In parallel, computational modelling groups realized the potential of this culture system to support their theoretical approaches to study tissues in silico. These groups developed computational organoid models (COMs) that enabled testing consistency between cell biological data and developing theories of tissue self-organization. The models supported a mechanistic understanding of organoid growth and maturation and helped linking cell mechanics and tissue shape in general. What comes next? Can we use COMs as tools to complement the equipment of our biological and medical research? While these models already support experimental design, can they also quantitatively predict tissue behavior? Here, we review the current state of the art of COMs and discuss perspectives for their application.
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Affiliation(s)
- Torsten Thalheim
- Interdisciplinary Institute for Bioinformatics (IZBI), Leipzig University, Härtelstr. 16–18, 04107 Leipzig, Germany
- Correspondence:
| | - Gabriela Aust
- Department of Surgery, Research Laboratories, Leipzig University, Liebigstraße 20, 04103 Leipzig, Germany
| | - Joerg Galle
- Interdisciplinary Institute for Bioinformatics (IZBI), Leipzig University, Härtelstr. 16–18, 04107 Leipzig, Germany
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Riedel NC, de Faria FW, Alfert A, Bruder JM, Kerl K. Three-Dimensional Cell Culture Systems in Pediatric and Adult Brain Tumor Precision Medicine. Cancers (Basel) 2022; 14:cancers14235972. [PMID: 36497454 PMCID: PMC9738956 DOI: 10.3390/cancers14235972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/09/2022] Open
Abstract
Primary brain tumors often possess a high intra- and intertumoral heterogeneity, which fosters insufficient treatment response for high-grade neoplasms, leading to a dismal prognosis. Recent years have seen the emergence of patient-specific three-dimensional in vitro models, including organoids. They can mimic primary parenteral tumors more closely in their histological, transcriptional, and mutational characteristics, thus approximating their intratumoral heterogeneity better. These models have been established for entities including glioblastoma and medulloblastoma. They have proven themselves to be reliable platforms for studying tumor generation, tumor-TME interactions, and prediction of patient-specific responses to establish treatment regimens and new personalized therapeutics. In this review, we outline current 3D cell culture models for adult and pediatric brain tumors, explore their current limitations, and summarize their applications in precision oncology.
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Affiliation(s)
- Nicole C. Riedel
- Department of Pediatric Hematology and Oncology, University Children’s Hospital Münster, 48149 Münster, Germany
| | - Flavia W. de Faria
- Department of Pediatric Hematology and Oncology, University Children’s Hospital Münster, 48149 Münster, Germany
| | - Amelie Alfert
- Department of Pediatric Hematology and Oncology, University Children’s Hospital Münster, 48149 Münster, Germany
| | - Jan M. Bruder
- Department for Cell and Developmental Biology, Max Planck Institute for molecular Biomedicine, 48148 Münster, Germany
| | - Kornelius Kerl
- Department of Pediatric Hematology and Oncology, University Children’s Hospital Münster, 48149 Münster, Germany
- Correspondence: ; Tel.: +49-251-83-47742; Fax: +49-251-83-47828
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Unagolla JM, Jayasuriya AC. Recent advances in organoid engineering: A comprehensive review. APPLIED MATERIALS TODAY 2022; 29:101582. [PMID: 38264423 PMCID: PMC10804911 DOI: 10.1016/j.apmt.2022.101582] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Organoid, a 3D structure derived from various cell sources including progenitor and differentiated cells that self-organize through cell-cell and cell-matrix interactions to recapitulate the tissue/organ-specific architecture and function in vitro. The advancement of stem cell culture and the development of hydrogel-based extracellular matrices (ECM) have made it possible to derive self-assembled 3D tissue constructs like organoids. The ability to mimic the actual physiological conditions is the main advantage of organoids, reducing the excessive use of animal models and variability between animal models and humans. However, the complex microenvironment and complex cellular structure of organoids cannot be easily developed only using traditional cell biology. Therefore, several bioengineering approaches, including microfluidics, bioreactors, 3D bioprinting, and organoids-on-a-chip techniques, are extensively used to generate more physiologically relevant organoids. In this review, apart from organoid formation and self-assembly basics, the available bioengineering technologies are extensively discussed as solutions for traditional cell biology-oriented problems in organoid cultures. Also, the natural and synthetic hydrogel systems used in organoid cultures are discussed when necessary to highlight the significance of the stem cell microenvironment. The selected organoid models and their therapeutic applications in drug discovery and disease modeling are also presented.
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Affiliation(s)
- Janitha M. Unagolla
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, The University of Toledo, Toledo OH, United States
| | - Ambalangodage C. Jayasuriya
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, The University of Toledo, Toledo OH, United States
- Department of Orthopaedic Surgery, College of Medicine and Life Sciences, The University of Toledo, 3000 Arlington Avenue, Toledo, OH 43614, United States
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Hardman D, Nguyen ML, Descroix S, Bernabeu MO. Mathematical modelling of oxygen transport in a muscle-on-chip device. Interface Focus 2022; 12:20220020. [PMID: 35996738 PMCID: PMC9372644 DOI: 10.1098/rsfs.2022.0020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 07/07/2022] [Indexed: 12/18/2022] Open
Abstract
Muscle-on-chip devices aim to recapitulate the physiological characteristics of in vivo muscle tissue and so maintaining levels of oxygen transported to cells is essential for cell survival and for providing the normoxic conditions experienced in vivo. We use finite-element method numerical modelling to describe oxygen transport and reaction in a proposed three-dimensional muscle-on-chip bioreactor with embedded channels for muscle cells and growth medium. We determine the feasibility of ensuring adequate oxygen for muscle cell survival in a device sealed from external oxygen sources and perfused via medium channels. We investigate the effects of varying elements of the bioreactor design on oxygen transport to optimize muscle tissue yield and maintain normoxic conditions. Successful co-culturing of muscle cells with motor neurons can boost muscle tissue function and so we estimate the maximum density of seeded neurons supported by oxygen concentrations within the bioreactor. We show that an enclosed bioreactor can provide sufficient oxygen for muscle cell survival and growth. We define a more efficient arrangement of muscle and perfusion chambers that can sustain a predicted 50% increase in maximum muscle volume per perfusion vessel. A study of simulated bioreactors provides functions for predicting bioreactor designs with normoxic conditions for any size of perfusion vessel, muscle chamber and distance between chambers.
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Affiliation(s)
- David Hardman
- Centre for Medical Informatics, Usher Institute, The University of Edinburgh, Edinburgh EH8 9BT, UK
| | - Manh-Louis Nguyen
- Institut Curie, Laboratoire Physico Chimie Curie, Institut Pierre-Gilles de Gennes, CNRS UMR168, 75005 Paris, France
| | - Stéphanie Descroix
- Institut Curie, Laboratoire Physico Chimie Curie, Institut Pierre-Gilles de Gennes, CNRS UMR168, 75005 Paris, France
| | - Miguel O. Bernabeu
- Centre for Medical Informatics, Usher Institute, The University of Edinburgh, Edinburgh EH8 9BT, UK
- The Bayes Centre, The University of Edinburgh, Edinburgh EH8 9BT, UK
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Cortez J, Leiva B, Torres CG, Parraguez VH, De los Reyes M, Carrasco A, Peralta OA. Generation and Characterization of Bovine Testicular Organoids Derived from Primary Somatic Cell Populations. Animals (Basel) 2022; 12:ani12172283. [PMID: 36078004 PMCID: PMC9455065 DOI: 10.3390/ani12172283] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 11/24/2022] Open
Abstract
Organoids are 3D-culture systems composed of tissue-specific primary cells that self-organize and self-renew, creating structures similar to those of their tissue of origin. Testicular organoids (TOs) may recreate conditions of the testicular niche in domestic and wild cattle; however, no previous TO studies have been reported in the bovine species. Thus, in the present study, we sought to generate and characterize bovine TOs derived from primary testicular cell populations including Leydig, Sertoli and peritubular myoid cells. Testicular cells were isolated from bovine testes and cultured in ultra-low attachment (ULA) plates and Matrigel. TOs were cultured in media supplemented from day 3 with 100 ng/mL of BMP4 and 10 ng/mL of FGF2 and from day 7 with 15 ng/mL of GDNF. Testicular cells were able to generate TOs after 3 days of culture. The cells positive for STAR (Leydig) and COL1A (peritubular myoid) decreased (p < 0.05), whereas cells positive for WT1 (Sertoli) increased (p < 0.05) in TOs during a 28-day culture period. The levels of testosterone in media increased (p < 0.05) at day 28 of culture. Thus, testicular cells isolated from bovine testes were able to generate TOs under in vitro conditions. These bovine TOs have steroidogenic activity characterized by the production of testosterone.
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Affiliation(s)
- Jahaira Cortez
- Department of Animal Production Sciences, Faculty of Veterinary and Animal Sciences, University of Chile, Santa Rosa 11735, Santiago 8820808, Chile
- Doctorate Program of Forestry, Agriculture, and Veterinary Sciences (DCSAV), University of Chile, Santa Rosa 11315, Santiago 8820808, Chile
| | - Barbara Leiva
- Department of Animal Production Sciences, Faculty of Veterinary and Animal Sciences, University of Chile, Santa Rosa 11735, Santiago 8820808, Chile
| | - Cristian G. Torres
- Department of Clinical Sciences, Faculty of Veterinary and Animal Sciences, University of Chile, Santa Rosa 11735, Santiago 8820808, Chile
| | - Víctor H. Parraguez
- Department of Biological Sciences, Veterinary and Animal Sciences, University of Chile, Santa Rosa 11735, Santiago 8820808, Chile
| | - Mónica De los Reyes
- Department of Animal Production Sciences, Faculty of Veterinary and Animal Sciences, University of Chile, Santa Rosa 11735, Santiago 8820808, Chile
| | - Albert Carrasco
- Laboratory of Animal Physiology and Endocrinology, Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Chillán 3780000, Chile
| | - Oscar A. Peralta
- Department of Animal Production Sciences, Faculty of Veterinary and Animal Sciences, University of Chile, Santa Rosa 11735, Santiago 8820808, Chile
- Correspondence:
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Bikmulina P, Kosheleva N, Shpichka A, Yusupov V, Gogvadze V, Rochev Y, Timashev P. Photobiomodulation in 3D tissue engineering. JOURNAL OF BIOMEDICAL OPTICS 2022; 27:090901. [PMID: 36104833 PMCID: PMC9473299 DOI: 10.1117/1.jbo.27.9.090901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
SIGNIFICANCE The method of photobiomodulation (PBM) has been used in medicine for a long time to promote anti-inflammation and pain-resolving processes in different organs and tissues. PBM triggers numerous cellular pathways including stimulation of the mitochondrial respiratory chain, alteration of the cytoskeleton, cell death prevention, increasing proliferative activity, and directing cell differentiation. The most effective wavelengths for PBM are found within the optical window (750 to 1100 nm), in which light can permeate tissues and other water-containing structures to depths of up to a few cm. PBM already finds its applications in the developing fields of tissue engineering and regenerative medicine. However, the diversity of three-dimensional (3D) systems, irradiation sources, and protocols intricate the PBM applications. AIM We aim to discuss the PBM and 3D tissue engineered constructs to define the fields of interest for PBM applications in tissue engineering. APPROACH First, we provide a brief overview of PBM and the timeline of its development. Then, we discuss the optical properties of 3D cultivation systems and important points of light dosimetry. Finally, we analyze the cellular pathways induced by PBM and outcomes observed in various 3D tissue-engineered constructs: hydrogels, scaffolds, spheroids, cell sheets, bioprinted structures, and organoids. RESULTS Our summarized results demonstrate the great potential of PBM in the stimulation of the cell survival and viability in 3D conditions. The strategies to achieve different cell physiology states with particular PBM parameters are outlined. CONCLUSIONS PBM has already proved itself as a convenient and effective tool to prevent drastic cellular events in the stress conditions. Because of the poor viability of cells in scaffolds and the convenience of PBM devices, 3D tissue engineering is a perspective field for PBM applications.
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Affiliation(s)
- Polina Bikmulina
- Sechenov First Moscow State Medical University, World-Class Research Center “Digital Biodesign and Personalized Healthcare”, Moscow, Russia
| | - Nastasia Kosheleva
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
- FSBSI Institute of General Pathology and Pathophysiology, Moscow, Russia
- Sechenov University, Laboratory of Clinical Smart Nanotechnologies, Moscow, Russia
| | - Anastasia Shpichka
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
- Sechenov University, Laboratory of Clinical Smart Nanotechnologies, Moscow, Russia
| | - Vladimir Yusupov
- Institute of Photon Technologies of FSRC “Crystallography and Photonics” RAS, Troitsk, Russia
| | - Vladimir Gogvadze
- Lomonosov Moscow State University, Faculty of Medicine, Moscow, Russia
- Karolinska Institutet, Institute of Environmental Medicine, Division of Toxicology, Stockholm, Sweden
| | - Yury Rochev
- National University of Ireland, Galway, Galway, Ireland
| | - Peter Timashev
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
- Sechenov University, Laboratory of Clinical Smart Nanotechnologies, Moscow, Russia
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Norris SCP, Kawecki NS, Davis AR, Chen KK, Rowat AC. Emulsion-templated microparticles with tunable stiffness and topology: Applications as edible microcarriers for cultured meat. Biomaterials 2022; 287:121669. [PMID: 35853359 PMCID: PMC9834440 DOI: 10.1016/j.biomaterials.2022.121669] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 06/27/2022] [Accepted: 07/02/2022] [Indexed: 01/16/2023]
Abstract
Cultured meat has potential to diversify methods for protein production, but innovations in production efficiency will be required to make cultured meat a feasible protein alternative. Microcarriers provide a strategy to culture sufficient volumes of adherent cells in a bioreactor that are required for meat products. However, cell culture on inedible microcarriers involves extra downstream processing to dissociate cells prior to consumption. Here, we present edible microcarriers that can support the expansion and differentiation of myogenic cells in a single bioreactor system. To fabricate edible microcarriers with a scalable process, we used water-in-oil emulsions as templates for gelatin microparticles. We also developed a novel embossing technique to imprint edible microcarriers with grooved topology in order to test if microcarriers with striated surface texture can promote myoblast proliferation and differentiation in suspension culture. In this proof-of-concept demonstration, we showed that edible microcarriers with both smooth and grooved surface topologies supported the proliferation and differentiation of mouse myogenic C2C12 cells in a suspension culture. The grooved edible microcarriers showed a modest increase in the proliferation and alignment of myogenic cells compared to cells cultured on smooth, spherical microcarriers. During the expansion phase, we also observed the formation of cell-microcarrier aggregates or 'microtissues' for cells cultured on both smooth and grooved microcarriers. Myogenic microtissues cultured with smooth and grooved microcarriers showed similar characteristics in terms of myotube length, myotube volume fraction, and expression of myogenic markers. To establish feasibility of edible microcarriers for cultured meat, we showed that edible microcarriers supported the production of myogenic microtissue from C2C12 or bovine satellite muscle cells, which we harvested by centrifugation into a cookable meat patty that maintained its shape and exhibited browning during cooking. These findings demonstrate the potential of edible microcarriers for the scalable production of cultured meat in a single bioreactor.
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Affiliation(s)
- Sam C P Norris
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - N Stephanie Kawecki
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ashton R Davis
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Kathleen K Chen
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amy C Rowat
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Broad Stem Cell Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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Darrigade L, Haghebaert M, Cherbuy C, Labarthe S, Laroche B. A PDMP model of the epithelial cell turn-over in the intestinal crypt including microbiota-derived regulations. J Math Biol 2022; 84:60. [PMID: 35737118 DOI: 10.1007/s00285-022-01766-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 04/07/2022] [Accepted: 05/27/2022] [Indexed: 11/27/2022]
Abstract
Human health and physiology is strongly influenced by interactions between human cells and intestinal microbiota in the gut. In mammals, the host-microbiota crosstalk is mainly mediated by regulations at the intestinal crypt level: the epithelial cell turnover in crypts is directly influenced by metabolites produced by the microbiota. Conversely, enterocytes maintain hypoxia in the gut, favorable to anaerobic bacteria which dominate the gut microbiota. We constructed an individual-based model of epithelial cells interacting with the microbiota-derived chemicals diffusing in the crypt lumen. This model is formalized as a piecewise deterministic Markov process (PDMP). It accounts for local interactions due to cell contact (among which are mechanical interactions), for cell proliferation, differentiation and extrusion which are regulated spatially or by chemicals concentrations. It also includes chemicals diffusing and reacting with cells. A deterministic approximated model is also introduced for a large population of small cells, expressed as a system of porous media type equations. Both models are extensively studied through numerical exploration. Their biological relevance is thoroughly assessed by recovering bio-markers of an healthy crypt, such as cell population distribution along the crypt or population turn-over rates. Simulation results from the deterministic model are compared to the PMDP model and we take advantage of its lower computational cost to perform a sensitivity analysis by Morris method. We finally use the crypt model to explore butyrate supplementation to enhance recovery after infections by enteric pathogens.
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Affiliation(s)
- Léo Darrigade
- Université Paris-Saclay, INRAE, MaIAGE, 78350, Jouy-en-Josas, France
| | - Marie Haghebaert
- Université Paris-Saclay, INRAE, MaIAGE, 78350, Jouy-en-Josas, France
| | - Claire Cherbuy
- Université Paris-Saclay, INRAE, Micalis, 78350, Jouy-en-Josas, France
| | - Simon Labarthe
- Université Paris-Saclay, INRAE, MaIAGE, 78350, Jouy-en-Josas, France
- Univ. Bordeaux, INRAE, BIOGECO, F-33610, Cestas, France
- Inria, INRAE, Pléiade, 33400, Talence, France
| | - Beatrice Laroche
- Université Paris-Saclay, INRAE, MaIAGE, 78350, Jouy-en-Josas, France.
- Université Paris-Saclay, INRIA, Inria Saclay-Île-de-France, 91120, Palaiseau, France.
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Self-Organization of the Retina during Eye Development, Retinal Regeneration In Vivo, and in Retinal 3D Organoids In Vitro. Biomedicines 2022; 10:biomedicines10061458. [PMID: 35740479 PMCID: PMC9221005 DOI: 10.3390/biomedicines10061458] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/16/2022] [Accepted: 06/18/2022] [Indexed: 11/23/2022] Open
Abstract
Self-organization is a process that ensures histogenesis of the eye retina. This highly intricate phenomenon is not sufficiently studied due to its biological complexity and genetic heterogeneity. The review aims to summarize the existing central theories and ideas for a better understanding of retinal self-organization, as well as to address various practical problems of retinal biomedicine. The phenomenon of self-organization is discussed in the spatiotemporal context and illustrated by key findings during vertebrate retina development in vivo and retinal regeneration in amphibians in situ. Described also are histotypic 3D structures obtained from the disaggregated retinal progenitor cells of birds and retinal 3D organoids derived from the mouse and human pluripotent stem cells. The review highlights integral parts of retinal development in these conditions. On the cellular level, these include competence, differentiation, proliferation, apoptosis, cooperative movements, and migration. On the physical level, the focus is on the mechanical properties of cell- and cell layer-derived forces and on the molecular level on factors responsible for gene regulation, such as transcription factors, signaling molecules, and epigenetic changes. Finally, the self-organization phenomenon is discussed as a basis for the production of retinal organoids, a promising model for a wide range of basic scientific and medical applications.
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Sadeghi Joni S, Gerami R, Akhondi N, Etemadi A, Fosouli M, Eghbal AF. Investigating the role of susceptibility weighted imaging for assessment of ischemic penumbra with respect to Venus blood flow in ischemic stroke patients. INTERNATIONAL JOURNAL OF PHYSIOLOGY, PATHOPHYSIOLOGY AND PHARMACOLOGY 2022; 14:200-205. [PMID: 35891933 PMCID: PMC9301177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 04/22/2022] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Susceptibility weighted imaging can be used to study intracranial venous blood arteries based on the paramagnetic sensitivity of blood discharged by oxygen (SWI). Significant hypotensive drainage channels have been discovered in the ischemic tissue of the brain, which have been recognized by SWI. The compliance or non-compliance between the variation in venous drainage of ischemic brain tissue by SWI and diffusion limitation. MATERIAL AND METHODS This cross-sectional study was conducted in 2019 on 20 patients (15 men and 5 females) who were assigned to the Ghaem Hospital MRI Institute in Rasht, Iran. RESULTS Infarction has been detected in a total of 20 vascular regions. The caliber of the sulcal and intramedullary veins, on the other hand, was increased in 80 percent and 65 percent of the infarcted regions, respectively. In 45 percent of the vascular regions, a match between SWI and diffusion-weighted magnetic resonance imaging (DWI) was detected, mismatch was detected in two; follow-up revealed infarct progression. CONCLUSIONS Significant data on critically perfused cerebral cortex with possibility of infarction growth was focused on in elevated SWI investigations, contributing to SWI as a worthy MR implies that could be attached as complementary protocols to neuroimaging techniques for acute ischemia, according to the findings of this study.
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Affiliation(s)
- Saeid Sadeghi Joni
- Department of Radiology, Razi Hospital, Guilan University of Medical SciencesRasht, Iran
| | - Reza Gerami
- Department of Radiology, Faculty of Medicine, AJA University of Medical SciencesTehran, Iran
| | - Negin Akhondi
- Department of Radiology, Shohadaye Tajrish Hospital, Shahid Beheshti University of Medical SciencesTehran, Iran
| | - Ali Etemadi
- Faculty of Medicine, Shahid Beheshti University of Medical SciencesTehran, Iran
| | - Mahnaz Fosouli
- Department of Radiology, Isfahan University of Medical SciencesIsfahan, Iran
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Lu J, Fu S, Dai J, Hu J, Li S, Ji H, Wang Z, Yu J, Bao J, Xu B, Guo J, Yang H. Integrated metabolism and epigenetic modifications in the macrophages of mice in responses to cold stress. J Zhejiang Univ Sci B 2022; 23:461-480. [PMID: 35686526 PMCID: PMC9198231 DOI: 10.1631/jzus.b2101091] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The negative effects of low temperature can readily induce a variety of diseases. We sought to understand the reasons why cold stress induces disease by studying the mechanisms of fine-tuning in macrophages following cold exposure. We found that cold stress triggers increased macrophage activation accompanied by metabolic reprogramming of aerobic glycolysis. The discovery, by genome-wide RNA sequencing, of defective mitochondria in mice macrophages following cold exposure indicated that mitochondrial defects may contribute to this process. In addition, changes in metabolism drive the differentiation of macrophages by affecting histone modifications. Finally, we showed that histone acetylation and lactylation are modulators of macrophage differentiation following cold exposure. Collectively, metabolism-related epigenetic modifications are essential for the differentiation of macrophages in cold-stressed mice, and the regulation of metabolism may be crucial for alleviating the harm induced by cold stress.
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Affiliation(s)
- Jingjing Lu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Shoupeng Fu
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Jie Dai
- Shanghai Bioprofile Co. Ltd., Shanghai 201100, China
| | - Jianwen Hu
- Shanghai Bioprofile Co. Ltd., Shanghai 201100, China
| | - Shize Li
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Hong Ji
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Zhiquan Wang
- Faculty of Agricultural, Life and Environmental Sciences, University of Alberta, Edmonton, Alberta T5J 4P6, Canada
| | - Jiahong Yu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Jiming Bao
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Bin Xu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Jingru Guo
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China.
| | - Huanmin Yang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China.
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Choy Buentello D, Koch LS, Trujillo-de Santiago G, Alvarez MM, Broersen K. Use of standard U-bottom and V-bottom well plates to generate neuroepithelial embryoid bodies. PLoS One 2022; 17:e0262062. [PMID: 35536781 PMCID: PMC9089918 DOI: 10.1371/journal.pone.0262062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 04/08/2022] [Indexed: 11/19/2022] Open
Abstract
The use of organoids has become increasingly popular recently due to their self-organizing abilities, which facilitate developmental and disease modeling. Various methods have been described to create embryoid bodies (EBs) generated from embryonic or pluripotent stem cells but with varying levels of differentiation success and producing organoids of variable size. Commercial ultra-low attachment (ULA) V-bottom well plates are frequently used to generate EBs. These plates are relatively expensive and not as widely available as standard concave well plates. Here, we describe a cost-effective and low labor-intensive method that creates homogeneous EBs at high yield in standard V- and U-bottom well plates by applying an anti-adherence solution to reduce surface attachment, followed by centrifugation to enhance cellular aggregation. We also explore the effect of different seeding densities, in the range of 1 to 11 ×103 cells per well, for the fabrication of neuroepithelial EBs. Our results show that the use of V-bottom well plates briefly treated with anti-adherent solution (for 5 min at room temperature) consistently yields functional neural EBs in the range of seeding densities from 5 to 11×103 cells per well. A brief post-seeding centrifugation step further enhances EB establishment. EBs fabricated using centrifugation exhibited lower variability in their final size than their non-centrifuged counterparts, and centrifugation also improved EB yield. The span of conditions for reliable EB production is narrower in U-bottom wells than in V-bottom wells (i.e., seeding densities between 7×103 and 11×103 and using a centrifugation step). We show that EBs generated by the protocols introduced here successfully developed into neural organoids and expressed the relevant markers associated with their lineages. We anticipate that the cost-effective and easily implemented protocols presented here will greatly facilitate the generation of EBs, thereby further democratizing the worldwide ability to conduct organoid-based research.
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Affiliation(s)
- David Choy Buentello
- Centro de Biotecnología-FEMSA, Tecnologico de Monterrey, Monterrey, NL, México
- Departamento de Bioingeniería, Tecnologico de Monterrey, Monterrey, NL, México
- Department of Applied Stem Cell Technologies, TechMed Centre Enschede, University of Twente, Enschede, The Netherlands
| | - Lena Sophie Koch
- Department of Applied Stem Cell Technologies, TechMed Centre Enschede, University of Twente, Enschede, The Netherlands
| | - Grissel Trujillo-de Santiago
- Centro de Biotecnología-FEMSA, Tecnologico de Monterrey, Monterrey, NL, México
- Departamento de Ingeniería Mecatrónica y Eléctrica, Tecnologico de Monterrey, Monterrey, NL, México
| | - Mario Moisés Alvarez
- Centro de Biotecnología-FEMSA, Tecnologico de Monterrey, Monterrey, NL, México
- Departamento de Bioingeniería, Tecnologico de Monterrey, Monterrey, NL, México
- * E-mail: (MMA); (KB)
| | - Kerensa Broersen
- Department of Applied Stem Cell Technologies, TechMed Centre Enschede, University of Twente, Enschede, The Netherlands
- * E-mail: (MMA); (KB)
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42
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Eleftheriadou D, Berg M, Phillips JB, Shipley RJ. A combined experimental and computational framework to evaluate the behavior of therapeutic cells for peripheral nerve regeneration. Biotechnol Bioeng 2022; 119:1980-1996. [PMID: 35445744 PMCID: PMC9323509 DOI: 10.1002/bit.28105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 03/22/2022] [Accepted: 04/08/2022] [Indexed: 11/08/2022]
Abstract
Recent studies have explored the potential of tissue‐mimetic scaffolds in encouraging nerve regeneration. One of the major determinants of the regenerative success of cellular nerve repair constructs (NRCs) is the local microenvironment, particularly native low oxygen conditions which can affect implanted cell survival and functional performance. In vivo, cells reside in a range of environmental conditions due to the spatial gradients of nutrient concentrations that are established. Here we evaluate in vitro the differences in cellular behavior that such conditions induce, including key biological features such as oxygen metabolism, glucose consumption, cell death, and vascular endothelial growth factor secretion. Experimental measurements are used to devise and parameterize a mathematical model that describes the behavior of the cells. The proposed model effectively describes the interactions between cells and their microenvironment and could in the future be extended, allowing researchers to compare the behavior of different therapeutic cells. Such a combinatorial approach could be used to accelerate the clinical translation of NRCs by identifying which critical design features should be optimized when fabricating engineered nerve repair conduits.
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Affiliation(s)
- D Eleftheriadou
- Centre for Nerve Engineering, University College London, London, WC1E 6B.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, WC1N 1AX.,Department of Mechanical Engineering, University College London, London, WC1E 7JE
| | - M Berg
- Centre for Nerve Engineering, University College London, London, WC1E 6B.,Department of Mechanical Engineering, University College London, London, WC1E 7JE
| | - J B Phillips
- Centre for Nerve Engineering, University College London, London, WC1E 6B.,Department of Pharmacology, UCL School of Pharmacy, University College London, London, WC1N 1AX
| | - R J Shipley
- Centre for Nerve Engineering, University College London, London, WC1E 6B.,Department of Mechanical Engineering, University College London, London, WC1E 7JE
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Cui S, Pratx G. 3D computational model of oxygen depletion kinetics in brain vasculature during FLASH RT, and its implications for in vivo oximetry experiments. Med Phys 2022; 49:3914-3925. [PMID: 35393643 DOI: 10.1002/mp.15642] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 02/19/2022] [Accepted: 03/23/2022] [Indexed: 11/07/2022] Open
Abstract
PURPOSE Ultra-high dose rate irradiation, also known as FLASH, has been shown to improve the therapeutic ratio of radiation therapy (RT). The mechanism behind this effect has been partially explained by the radiochemical oxygen depletion (ROD) hypothesis, which attributes the protection of the normal tissue to the induction of transient hypoxia by ROD. To better understand the contribution of oxygen to the FLASH effect, it is necessary to measure oxygen (O2 ) in vivo during FLASH irradiation. This study's goal is to determine the temporal resolution required to accurately measure the rapidly changing oxygen concentration immediately after FLASH irradiation. METHODS We conducted a computational simulation of oxygen dynamics using a real vascular model that was constructed from a public fluorescence microscopy dataset. The dynamic distribution of oxygen tension (po2 ) during and after FLASH RT was modeled by a partial differential equation (PDE) considering oxygen diffusion, metabolism, and ROD. The underestimation of ROD due to oxygen recovery was evaluated assuming either complete or partial depletion, and a range of possible values for parameters such as oxygen diffusion, consumption, vascular po2 and vessel density. RESULT The O2 concentration recovers rapidly after FLASH RT. Assuming a temporal resolution of 0.5 s, the estimated ROD is only 50.7% and 36.7% of its actual value in cases of partial and complete depletion, respectively. Additionally, the underestimation of ROD is highly dependent on the vascular density. To estimate ROD rate with 90% accuracy, temporal resolution on the order of milliseconds is required considering the uncertainty in parameters involved, especially, the diverse vascular density of the tissue. CONCLUSION The rapid recovery of O2 poses a great challenge for in vivo ROD measurements during FLASH RT. Temporal resolution on the order of milliseconds is recommended for ROD measurements in the normal tissue. Further work is warranted to investigate whether the same requirements apply to tumors, given their irregular vasculature. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Sunan Cui
- Department of Radiation Oncology, Stanford University, Palo Alto, California, USA
| | - Guillem Pratx
- Department of Radiation Oncology, Stanford University, Palo Alto, California, USA
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Translational organoid technology – the convergence of chemical, mechanical, and computational biology. Trends Biotechnol 2022; 40:1121-1135. [DOI: 10.1016/j.tibtech.2022.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/04/2022] [Accepted: 03/09/2022] [Indexed: 01/08/2023]
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Wei SY, Chen TH, Kao FS, Hsu YJ, Chen YC. Strategy for improving cell-mediated vascularized soft tissue formation in a hydrogen peroxide-triggered chemically-crosslinked hydrogel. J Tissue Eng 2022; 13:20417314221084096. [PMID: 35296029 PMCID: PMC8918759 DOI: 10.1177/20417314221084096] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 02/13/2022] [Indexed: 12/03/2022] Open
Abstract
The physically-crosslinked collagen hydrogels can provide suitable microenvironments for cell-based functional vascular network formation due to their biodegradability, biocompatibility, and good diffusion properties. However, encapsulation of cells into collagen hydrogels results in extensive contraction and rapid degradation of hydrogels, an effect known from their utilization as a pre-vascularized graft in vivo. Various types of chemically-crosslinked collagen-based hydrogels have been successfully synthesized to decrease volume contraction, retard the degradation rate, and increase mechanical tunability. However, these hydrogels failed to form vascularized tissues with uniformly distributed microvessels in vivo. Here, the enzymatically chemically-crosslinked collagen-Phenolic hydrogel was used as a model to determine and overcome the difficulties in engineering vascular networks. Results showed that a longer duration of inflammation and excessive levels of hydrogen peroxide limited the capability for blood vessel forming cells-mediated vasculature formation in vivo. Lowering the unreacted amount of crosslinkers reduced the densities of infiltrating host myeloid cells by half on days 2–4 after implantation, but blood vessels remained at low density and were mainly located on the edge of the implanted constructs. Co-implantation of a designed spacer with cell-laden hydrogel maintained the structural integrity of the hydrogel and increased the degree of hypoxia in embedded cells. These effects resulted in a two-fold increase in the density of perfused blood vessels in the hydrogel. Results agreed with computer-based simulations. Collectively, our findings suggest that simultaneous reduction of the crosslinker-induced host immune response and increase in hypoxia in hydrogen peroxide-triggered chemically-crosslinked hydrogels can effectively improve the formation of cell-mediated functional vascular networks.
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Affiliation(s)
- Shih-Yen Wei
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Tzu-Hsuan Chen
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Feng-Sheng Kao
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Yi-Jung Hsu
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Ying-Chieh Chen
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan
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Ogundipe V, Plukker J, Links T, Coppes R. Thyroid Gland Organoids: Current models and insights for application in tissue engineering. Tissue Eng Part A 2022; 28:500-510. [PMID: 35262402 DOI: 10.1089/ten.tea.2021.0221] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The incidence of treatment of thyroid disease and consequential hypothyroidism has been increasing over the past few years. To maintain adequate thyroid hormone levels, these patients require daily supplementation with levothyroxine (L-T4) for the rest of their lives. However, a large part of these patients experiences difficulties due to the medication, which causes a decrease in their quality of life. Regenerative medicine through tissue engineering could provide a potential therapy by establishing tissue engineering models, such as those employing thyroid-derived organoids. The development of such treatment options may replace the need for additional hormonal replacement therapy. This review aims to highlight the current knowledge on thyroid regenerative medicine using organoids for tissue engineering, and to discuss insights into potential methods to optimize thyroid engineering culture systems. Finally, we will describe several challenges faced when utilising these models.
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Affiliation(s)
- Vivian Ogundipe
- University Medical Centre Groningen, 10173, Biomedical Sciences of Cells and Systems, Groningen, Groningen, Netherlands;
| | - John Plukker
- University Medical Centre Groningen, 10173, Surgical Oncology, Groningen, Netherlands;
| | - Thera Links
- University Medical Centre Groningen, 10173, Endocrinology, Groningen, Groningen, Netherlands;
| | - Rob Coppes
- University Medical Centre Groningen, 10173, Biomedical Sciences of Cells and Sytems, Groningen, Netherlands;
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A 3D Mathematical Model of Coupled Stem Cell-Nutrient Dynamics in Myocardial Regeneration Therapy. J Theor Biol 2022; 537:111023. [PMID: 35041851 DOI: 10.1016/j.jtbi.2022.111023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 11/04/2021] [Accepted: 01/09/2022] [Indexed: 11/23/2022]
Abstract
Stem cell therapy is a promising treatment for the regeneration of myocardial tissue injured by an ischemic event. Mathematical modeling of myocardial regeneration via stem cell therapy is a challenging task, since the mechanisms underlying the processes involved in the treatment are not yet fully understood. Many aspects must be accounted for, such as the spread of stem cells and nutrients, chemoattraction, cell proliferation, stages of cell maturation, differentiation, angiogenesis, stochastic effects, just to name a few. In this paper we propose a 3D mathematical model with a free boundary that aims to provide a qualitative description of some main aspects of the stem cell regenerative therapy in a simplified scenario. The paper mainly focuses on the description of the shrinking of the necrotic core during treatment. The stem cell and nutrients dynamics are described through coupled reaction-diffusion problems. Proliferation, chemoattraction, tissue regeneration and nutrient consumption are included in the model.
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48
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Tethered TGF-β1 in a Hyaluronic Acid-Based Bioink for Bioprinting Cartilaginous Tissues. Int J Mol Sci 2022; 23:ijms23020924. [PMID: 35055112 PMCID: PMC8781121 DOI: 10.3390/ijms23020924] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 02/02/2023] Open
Abstract
In 3D bioprinting for cartilage regeneration, bioinks that support chondrogenic development are of key importance. Growth factors covalently bound in non-printable hydrogels have been shown to effectively promote chondrogenesis. However, studies that investigate the functionality of tethered growth factors within 3D printable bioinks are still lacking. Therefore, in this study, we established a dual-stage crosslinked hyaluronic acid-based bioink that enabled covalent tethering of transforming growth factor-beta 1 (TGF-β1). Bone marrow-derived mesenchymal stromal cells (MSCs) were cultured over three weeks in vitro, and chondrogenic differentiation of MSCs within bioink constructs with tethered TGF-β1 was markedly enhanced, as compared to constructs with non-covalently incorporated TGF-β1. This was substantiated with regard to early TGF-β1 signaling, chondrogenic gene expression, qualitative and quantitative ECM deposition and distribution, and resulting construct stiffness. Furthermore, it was successfully demonstrated, in a comparative analysis of cast and printed bioinks, that covalently tethered TGF-β1 maintained its functionality after 3D printing. Taken together, the presented ink composition enabled the generation of high-quality cartilaginous tissues without the need for continuous exogenous growth factor supply and, thus, bears great potential for future investigation towards cartilage regeneration. Furthermore, growth factor tethering within bioinks, potentially leading to superior tissue development, may also be explored for other biofabrication applications.
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Boodaghi M, Libring S, Solorio L, Ardekani AM. A Bayesian approach to estimate the diffusion coefficient of Rhodamine 6G in breast cancer spheroids. J Control Release 2021; 340:60-71. [PMID: 34634388 PMCID: PMC8671317 DOI: 10.1016/j.jconrel.2021.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 09/10/2021] [Accepted: 10/04/2021] [Indexed: 10/20/2022]
Abstract
Multicellular spheroids have emerged as a robust platform to model tumor growth and are widely used for studying drug sensitivity. Diffusion is the main mechanism for transporting nutrients and chemotherapeutic drugs into spheroids, since they are typically avascular. In this study, the Bayesian inference was used to solve the inverse problem of determining the light attenuation coefficient and diffusion coefficient of Rhodamine 6G (R6G) in breast cancer spheroids, as a mock drug for the tyrosine kinase inhibitor, Neratinib. Four types of breast cancer spheroids were formed and the diffusion coefficient was estimated assuming a linear relationship between the intensity and concentration. The mathematical model used for prediction is the solution to the diffusion problem in spherical coordinates, accounting for the light attenuation. The Gaussian likelihood was used to account for the error between the measurements and model predictions. The Markov Chain Monte Carlo algorithm (MCMC) was used to sample from the posterior. The posterior predictions for the diffusion and light attenuation coefficients were provided. The results indicate that the diffusion coefficient values do not significantly vary across a HER2+ breast cancer cell line as a function of transglutaminase 2 levels, even in the presence of fibroblast cells. However, we demonstrate that different diffusion coefficient values can be ascertained from tumorigenic compared to nontumorigenic spheroids and from nonmetastatic compared to post-metastatic breast cancer cells using this approach. We also report agreement between spheroid radius, attenuation coefficient, and subsequent diffusion coefficient to give evidence of cell packing in self-assembled spheroids. The methodology presented here will allow researchers to determine diffusion in spheroids to decouple transport and drug penetration changes from biological resistivity.
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Affiliation(s)
- Miad Boodaghi
- School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, IN 47907, USA
| | - Sarah Libring
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Luis Solorio
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Arezoo M Ardekani
- School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, IN 47907, USA.
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50
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Liang W, Dong Y, Shen H, Shao R, Wu X, Huang X, Sun B, Zeng B, Zhang S, Xu F. Materials science and design principles of therapeutic materials in orthopedic and bone tissue engineering. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wenqing Liang
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
| | - Yongqiang Dong
- Department of Orthopedics Xinchang People's Hospital Shaoxing China
| | - Hailiang Shen
- Department of Orthopedics Affiliated Hospital of Shaoxing University Shaoxing China
| | - Ruyi Shao
- Department of Orthopedics Zhuji People's Hospital Shaoxing China
| | - Xudong Wu
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
| | - Xiaogang Huang
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
| | - Bin Sun
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
| | - Bin Zeng
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
| | - Songou Zhang
- College of Medicine Shaoxing University Shaoxing China
| | - Fangming Xu
- Department of Orthopedics Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University Zhoushan China
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