1
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Kumar D, Nadda R, Repaka R. Advances and challenges in organ-on-chip technology: toward mimicking human physiology and disease in vitro. Med Biol Eng Comput 2024; 62:1925-1957. [PMID: 38436835 DOI: 10.1007/s11517-024-03062-7] [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: 10/19/2023] [Accepted: 02/23/2024] [Indexed: 03/05/2024]
Abstract
Organs-on-chips have been tissues or three-dimensional (3D) mini-organs that comprise numerous cell types and have been produced on microfluidic chips to imitate the complicated structures and interactions of diverse cell types and organs under controlled circumstances. Several morphological and physiological distinctions exist between traditional 2D cultures, animal models, and the growing popular 3D cultures. On the other hand, animal models might not accurately simulate human toxicity because of physiological variations and interspecies metabolic capability. The on-chip technique allows for observing and understanding the process and alterations occurring in metastases. The present study aimed to briefly overview single and multi-organ-on-chip techniques. The current study addresses each platform's essential benefits and characteristics and highlights recent developments in developing and utilizing technologies for single and multi-organs-on-chips. The study also discusses the drawbacks and constraints associated with these models, which include the requirement for standardized procedures and the difficulties of adding immune cells and other intricate biological elements. Finally, a comprehensive review demonstrated that the organs-on-chips approach has a potential way of investigating organ function and disease. The advancements in single and multi-organ-on-chip structures can potentially increase drug discovery and minimize dependency on animal models, resulting in improved therapies for human diseases.
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Affiliation(s)
- Dhiraj Kumar
- Department of Mechanical Engineering, Indian Institute of Technology Ropar, Punjab, 140001, India
| | - Rahul Nadda
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Punjab, 140001, India.
| | - Ramjee Repaka
- Department of Mechanical Engineering, Indian Institute of Technology Ropar, Punjab, 140001, India
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Punjab, 140001, India
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2
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Mahieu L, Van Moll L, De Vooght L, Delputte P, Cos P. In vitro modelling of bacterial pneumonia: a comparative analysis of widely applied complex cell culture models. FEMS Microbiol Rev 2024; 48:fuae007. [PMID: 38409952 PMCID: PMC10913945 DOI: 10.1093/femsre/fuae007] [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: 10/02/2023] [Revised: 01/29/2024] [Accepted: 02/24/2024] [Indexed: 02/28/2024] Open
Abstract
Bacterial pneumonia greatly contributes to the disease burden and mortality of lower respiratory tract infections among all age groups and risk profiles. Therefore, laboratory modelling of bacterial pneumonia remains important for elucidating the complex host-pathogen interactions and to determine drug efficacy and toxicity. In vitro cell culture enables for the creation of high-throughput, specific disease models in a tightly controlled environment. Advanced human cell culture models specifically, can bridge the research gap between the classical two-dimensional cell models and animal models. This review provides an overview of the current status of the development of complex cellular in vitro models to study bacterial pneumonia infections, with a focus on air-liquid interface models, spheroid, organoid, and lung-on-a-chip models. For the wide scale, comparative literature search, we selected six clinically highly relevant bacteria (Pseudomonas aeruginosa, Mycoplasma pneumoniae, Haemophilus influenzae, Mycobacterium tuberculosis, Streptococcus pneumoniae, and Staphylococcus aureus). We reviewed the cell lines that are commonly used, as well as trends and discrepancies in the methodology, ranging from cell infection parameters to assay read-outs. We also highlighted the importance of model validation and data transparency in guiding the research field towards more complex infection models.
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Affiliation(s)
- Laure Mahieu
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Laurence Van Moll
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Linda De Vooght
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Peter Delputte
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Paul Cos
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
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3
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Kanabekova P, Dauletkanov B, Bekezhankyzy Z, Toktarkan S, Martin A, Pham TT, Kostas K, Kulsharova G. A hybrid fluorescent nanofiber membrane integrated with microfluidic chips towards lung-on-a-chip applications. LAB ON A CHIP 2024; 24:224-233. [PMID: 38053518 DOI: 10.1039/d3lc00751k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Here, we report a fluorescent electrospun nanofiber membrane for integration into microfluidic devices towards lung-on-a-chip applications complemented with the results of computational fluid dynamics modelling. A proposed hybrid poly(ε-caprolactone) (PCL)-collagen membrane was developed, characterized, tested, and integrated into a prototype microfluidic chip for biocompatibility studies. The resulting membrane has a thickness of approximately 10 μm, can be adjusted for appropriate porosity, and offers excellent biocompatibility for mimicry of a basement membrane to be used in lung-on-a-chip device applications. Several membrane variations were synthesized and evaluated using SEM, FTIR, AFM, and high-resolution confocal fluorescence microscopy. A sample microfluidic chip made of cyclic olefin copolymer and polydimethylsiloxane was built and integrated with the developed PCL-collagen membrane for on-chip cell culture visualisation and biocompatibility studies. The sample chip design was modelled to determine the optimal fluidic conditions for using the membrane in the chip under fluidic conditions for future studies. The integration of the proposed membrane into microfluidic devices represents a novel strategy for improving lung-on-a-chip applications which can enhance laboratory recapitulation of the lung microenvironment.
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Affiliation(s)
- Perizat Kanabekova
- Department of Electrical and Computer Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Bereke Dauletkanov
- Department of Electrical and Computer Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Zhibek Bekezhankyzy
- Department of Electrical and Computer Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Sultanali Toktarkan
- Department of Electrical and Computer Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Alma Martin
- Department of Electrical and Computer Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan.
| | - Tri T Pham
- Department of Biology, School of Sciences and Humanities, Nazarbayev University, Astana 010000, Kazakhstan
| | - Konstantinos Kostas
- Department of Mechanical and Aerospace Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan
| | - Gulsim Kulsharova
- Department of Electrical and Computer Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan.
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4
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Deliorman M, Ali DS, Qasaimeh MA. Next-Generation Microfluidics for Biomedical Research and Healthcare Applications. Biomed Eng Comput Biol 2023; 14:11795972231214387. [PMID: 38033395 PMCID: PMC10683381 DOI: 10.1177/11795972231214387] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Microfluidic systems offer versatile biomedical tools and methods to enhance human convenience and health. Advances in these systems enables next-generation microfluidics that integrates automation, manipulation, and smart readout systems, as well as design and three-dimensional (3D) printing for precise production of microchannels and other microstructures rapidly and with great flexibility. These 3D-printed microfluidic platforms not only control the complex fluid behavior for various biomedical applications, but also serve as microconduits for building 3D tissue constructs-an integral component of advanced drug development, toxicity assessment, and accurate disease modeling. Furthermore, the integration of other emerging technologies, such as advanced microscopy and robotics, enables the spatiotemporal manipulation and high-throughput screening of cell physiology within precisely controlled microenvironments. Notably, the portability and high precision automation capabilities in these integrated systems facilitate rapid experimentation and data acquisition to help deepen our understanding of complex biological systems and their behaviors. While certain challenges, including material compatibility, scaling, and standardization still exist, the integration with artificial intelligence, the Internet of Things, smart materials, and miniaturization holds tremendous promise in reshaping traditional microfluidic approaches. This transformative potential, when integrated with advanced technologies, has the potential to revolutionize biomedical research and healthcare applications, ultimately benefiting human health. This review highlights the advances in the field and emphasizes the critical role of the next generation microfluidic systems in advancing biomedical research, point-of-care diagnostics, and healthcare systems.
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Affiliation(s)
| | - Dima Samer Ali
- Division of Engineering, New York University Abu Dhabi (NYUAD), Abu Dhabi, UAE
- Department of Mechanical and Aerospace Engineering, New York University, New York, NY, USA
| | - Mohammad A Qasaimeh
- Division of Engineering, New York University Abu Dhabi (NYUAD), Abu Dhabi, UAE
- Department of Mechanical and Aerospace Engineering, New York University, New York, NY, USA
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5
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Tian L, Shi J, Li W, Zhang Y, Gao X. Hollow Microfiber Assembly-Based Endocrine Pancreas-on-a-Chip for Sugar Substitute Evaluation. Adv Healthc Mater 2023:e2302104. [PMID: 37751946 DOI: 10.1002/adhm.202302104] [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: 07/05/2023] [Revised: 09/22/2023] [Indexed: 10/03/2023]
Abstract
With the increasing demand for low-sugar, low-calorie healthy diets, artificial sweeteners are widely used as substitutes for sugar in the food industry. Therefore, developing models that can better predict the effects of sugar substitutes on the human body is necessary. Here, a new type of endocrine pancreas-on-a-chip is developed based on a microfiber assembly and its stimulation of pancreatic secretion by glucose or sugar substitutes is evaluated. This new endocrine pancreas-on-a-chip is assembled using two components: (1) a cell-loaded hollow methacrylate gelatin (GelMA)/calcium alginate (CaA) composite microfiber prepared by microfluidic spinning to achieve vascular simulation and material transport, and (2) a 3D pancreatic islet culture layer, which also serves as a fiber assembly microchip. Using this established organ chip, the effects of five sweeteners (glucose, erythritol, xylitol, sodium cyclamate, and sucralose) were investigated on pancreatic islet cell viability and insulin and glucagon secretion. The constructed endocrine pancreas-on-a-chip has potential for the safety evaluation of sugar-substituted food additives, which can expand the application of organ chips in the field of food safety and provide a new platform for evaluating various food additives.
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Affiliation(s)
- Lingling Tian
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
| | - Jingyan Shi
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
| | - Wei Li
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
| | - Yuan Zhang
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
| | - Xinghua Gao
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
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Baassiri K, Nicolau DV. Investigating the Mechanism of Intravascular Bubble Formation in Designed Arrays of Vascularized Systems on a Chip. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2023; 2023:1-5. [PMID: 38083489 DOI: 10.1109/embc40787.2023.10340569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Vascular gas embolism is a rare medical condition, resulting from the existence of air or gas in the venous or arterial system. Gas embolism is associated with a wide range of circulatory, cardiovascular, and neurological complications that can lead to sudden and unexplained death. Despite the recent increase in related studies, gas embolism remains under-reported with a poor understanding of its genesis and pathophysiology. In this work, intravascular bubble formation is investigated in an array of biomimetic microscale systems, where the endogenous generation of gas bubbles is induced by variations in the surrounding pressure. Microfluidic devices, based on polydimethylsiloxane, are designed and fabricated as vascularized systems on a chip with one main channel at two different diameters (30 µm, and 40 µm), surrounded by a pressure chamber (200 µm) on each side, at a separation of 50 µm. Two blood-equivalent solutions, at 20% and 46% hematocrit concentrations were prepared from a glycerin and xanthan gum mixture to mimic the physicochemical characteristics of the blood. As the volume of injected air increased, the events related to gas embolism were occurring at shorter timespans with more significant characteristics, i.e., length and number of bubbles. Additionally, correlations were established between the input parameters, i.e., the vascular diameter and equivalent hematocrit concentration, and the output parameters, i.e., the bubble size, velocity, frequency, and nucleation sites.Clinical Relevance- The reported results constitute a reproducible observation and quantification of intravascular bubble formation induced by global pressure variations, where the emergence of bubbles exhibits different patterns depending on biological characteristics related to gender and medical history.
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7
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Sunildutt N, Parihar P, Chethikkattuveli Salih AR, Lee SH, Choi KH. Revolutionizing drug development: harnessing the potential of organ-on-chip technology for disease modeling and drug discovery. Front Pharmacol 2023; 14:1139229. [PMID: 37180709 PMCID: PMC10166826 DOI: 10.3389/fphar.2023.1139229] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 04/05/2023] [Indexed: 05/16/2023] Open
Abstract
The inefficiency of existing animal models to precisely predict human pharmacological effects is the root reason for drug development failure. Microphysiological system/organ-on-a-chip technology (organ-on-a-chip platform) is a microfluidic device cultured with human living cells under specific organ shear stress which can faithfully replicate human organ-body level pathophysiology. This emerging organ-on-chip platform can be a remarkable alternative for animal models with a broad range of purposes in drug testing and precision medicine. Here, we review the parameters employed in using organ on chip platform as a plot mimic diseases, genetic disorders, drug toxicity effects in different organs, biomarker identification, and drug discoveries. Additionally, we address the current challenges of the organ-on-chip platform that should be overcome to be accepted by drug regulatory agencies and pharmaceutical industries. Moreover, we highlight the future direction of the organ-on-chip platform parameters for enhancing and accelerating drug discoveries and personalized medicine.
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Affiliation(s)
- Naina Sunildutt
- Department of Mechatronics Engineering, Jeju National University, Jeju, Republic of Korea
| | - Pratibha Parihar
- Department of Mechatronics Engineering, Jeju National University, Jeju, Republic of Korea
| | | | - Sang Ho Lee
- College of Pharmacy, Jeju National University, Jeju, Republic of Korea
| | - Kyung Hyun Choi
- Department of Mechatronics Engineering, Jeju National University, Jeju, Republic of Korea
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8
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Li C, Zhao R, Yang H, Ren L. Construction of Bone Hypoxic Microenvironment Based on Bone-on-a-Chip Platforms. Int J Mol Sci 2023; 24:ijms24086999. [PMID: 37108162 PMCID: PMC10139217 DOI: 10.3390/ijms24086999] [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: 02/20/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023] Open
Abstract
The normal physiological activities and functions of bone cells cannot be separated from the balance of the oxygenation level, and the physiological activities of bone cells are different under different oxygenation levels. At present, in vitro cell cultures are generally performed in a normoxic environment, and the partial pressure of oxygen of a conventional incubator is generally set at 141 mmHg (18.6%, close to the 20.1% oxygen in ambient air). This value is higher than the mean value of the oxygen partial pressure in human bone tissue. Additionally, the further away from the endosteal sinusoids, the lower the oxygen content. It follows that the construction of a hypoxic microenvironment is the key point of in vitro experimental investigation. However, current methods of cellular research cannot realize precise control of oxygenation levels at the microscale, and the development of microfluidic platforms can overcome the inherent limitations of these methods. In addition to discussing the characteristics of the hypoxic microenvironment in bone tissue, this review will discuss various methods of constructing oxygen gradients in vitro and measuring oxygen tension from the microscale based on microfluidic technology. This integration of advantages and disadvantages to perfect the experimental study will help us to study the physiological responses of cells under more physiological-relevant conditions and provide a new strategy for future research on various in vitro cell biomedicines.
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Affiliation(s)
- Chen Li
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, Ningbo 315103, China
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Rong Zhao
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, Ningbo 315103, China
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Hui Yang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Li Ren
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, Ningbo 315103, China
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
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9
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Sisodia Y, Shah K, Ali Sayyed A, Jain M, Ali SA, Gondaliya P, Kalia K, Tekade RK. Lung-on-chip microdevices to foster pulmonary drug discovery. Biomater Sci 2023; 11:777-790. [PMID: 36537540 DOI: 10.1039/d2bm00951j] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Respiratory diseases account for unprecedented mortality owing to a lack of personalized or insufficient therapeutic interventions. Fostering pulmonary research into managing pulmonary threat requires a potential alternative approach that can mimick the in vivo complexities of the human body. The in vitro miniaturized bionic simulation of the lung holds great potential in the quest for a successful therapeutic intervention. This review discusses the emerging roles of lung-on-chip microfluidic simulator devices in fostering translational pulmonary drug discovery and personalized medicine. This review also explicates how the lung-on-chip model emulates the breathing patterns, elasticity, and vascularization of lungs in creating a 3D pulmonary microenvironment.
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Affiliation(s)
- Yashi Sisodia
- Department of Biotechnology, National of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India
| | - Komal Shah
- Department of Biotechnology, National of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India
| | - Adil Ali Sayyed
- Department of Biotechnology, National of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India.,Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India.,Department of Transplantation, Mayo Clinic, Jacksonville, Florida, 32224, USA
| | - Meenakshi Jain
- Department of Biotechnology, National of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India
| | - Syed Ansar Ali
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India
| | - Piyush Gondaliya
- Department of Biotechnology, National of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India.,Department of Transplantation, Mayo Clinic, Jacksonville, Florida, 32224, USA
| | - Kiran Kalia
- Department of Biotechnology, National of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India
| | - Rakesh Kumar Tekade
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India.
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10
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Patel VS, Amin K, Wahab A, Marimoutou M, Ukishima L, Alvarez J, Battle K, Stucki AO, Clippinger AJ, Behrsing HP. Cryopreserved human precision-cut lung slices provide an immune competent pulmonary test system for "on-demand" use and long-term cultures. Toxicol Sci 2023; 191:253-265. [PMID: 36617185 PMCID: PMC9936202 DOI: 10.1093/toxsci/kfac136] [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] [Indexed: 01/09/2023] Open
Abstract
Human precision-cut lung slices (hPCLS), considered a highly relevant ex vivo model of the lung, offer native architecture and cells of the lung tissue including respiratory parenchyma, small airways, and immune competent cells. However, the irregular availability of donor lungs has limited the accessibility of this system. As described here, thousands of hPCLS can be created from 1 lung, cryopreserved, and used "on demand" by applying slicing and cryopreservation methodology improvements. Fresh and cryopreserved (∼7 and ∼34 weeks; F&C) hPCLS from 1 donor lung were cultured for up to 29 days and evaluated for biomass, viability, tissue integrity, and inflammatory markers in response to lipopolysaccharide (LPS; 5 µg/ml) and Triton X-100 (TX100; 0.1%) challenge (24 h) at days 1, 8, 15, 22, and 29 following culture initiation. The F&C hPCLS retained biomass, viability, and tissue integrity throughout the 29 days and demonstrated immune responsiveness with up to ∼30-fold LPS-induced cytokine increases. Histologically, more than 70% of normal cytomorphological features were preserved in all groups through day 29. Similar retention of tissue viability and immune responsiveness post cryopreservation (4-6 weeks) and culture (up to 14 days) was observed in hPCLS from additional 3 donor lungs. Banking cryopreserved hPCLS from various donors (and disease states) provides a critical element in researching human-derived pulmonary tissue. The retention of viability and functional responsiveness (≥4 weeks) allows evaluation of long-term, complex endpoints reflecting key events in Adverse Outcome Pathways and positions hPCLS as a valuable human-relevant model for use in regulatory applications.
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Affiliation(s)
- Vivek S Patel
- To whom correspondence should be addressed at Institute for In Vitro Sciences, Inc., 30 West Watkins Mill Road, Suite 100, Gaithersburg, MD 20878. E-mail:
| | - Khalid Amin
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Adam Wahab
- Institute for In Vitro Sciences, Inc., Gaithersburg, Maryland 20878, USA
| | - Méry Marimoutou
- Institute for In Vitro Sciences, Inc., Gaithersburg, Maryland 20878, USA
| | - Lindsey Ukishima
- Institute for In Vitro Sciences, Inc., Gaithersburg, Maryland 20878, USA
| | - Jose Alvarez
- Institute for In Vitro Sciences, Inc., Gaithersburg, Maryland 20878, USA
| | - Kelley Battle
- Institute for In Vitro Sciences, Inc., Gaithersburg, Maryland 20878, USA
| | - Andreas O Stucki
- PETA Science Consortium International e.V., Stuttgart 70499, Germany
| | - Amy J Clippinger
- PETA Science Consortium International e.V., Stuttgart 70499, Germany
| | - Holger P Behrsing
- Institute for In Vitro Sciences, Inc., Gaithersburg, Maryland 20878, USA
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11
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Tan J, Guo Q, Tian L, Pei Z, Li D, Wu M, Zhang J, Gao X. Biomimetic lung-on-a-chip to model virus infection and drug evaluation. Eur J Pharm Sci 2023; 180:106329. [PMID: 36375766 PMCID: PMC9650675 DOI: 10.1016/j.ejps.2022.106329] [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: 09/21/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 11/13/2022]
Abstract
Viral infectious diseases remain a global public health problem. The rapid and widespread spread of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV‑2) has had a severe impact on the global economy and human activities, highlighting the vulnerability of humans to viral infectious diseases and the urgent need to develop new technologies and effective treatments. Organ-on-a-chip is an emerging technology for constructing the physiological and pathological microenvironment of human organs in vitro and has the advantages of portability, high throughput, low cost, and accurate simulation of the in vivo microenvironment. Indeed, organ-on-a-chip provides a low-cost alternative for investigating human organ physiology, organ diseases, toxicology, and drug efficacy. The lung is a main target organ of viral infection, and lung pathophysiology must be assessed after viral infection and treatment with antiviral drugs. This review introduces the construction of lung-on-a-chip and its related pathophysiological models, focusing on the in vitro simulation of viral infection and evaluation of antiviral drugs, providing a developmental direction for research and treatment of viral diseases.
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Affiliation(s)
- Jianfeng Tan
- Department of Thoracic Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China
| | - Quanwei Guo
- Department of Thoracic Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China
| | - Lingling Tian
- Materials Genome Institute, Shanghai University, Shanghai 200444, China
| | - Zhendong Pei
- Anesthesia Surgery Center, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China
| | - Dongfang Li
- Department of Thoracic Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China
| | - Mengxi Wu
- Department of Thoracic Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China
| | - Jianhua Zhang
- Department of Thoracic Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China,Corresponding author at: Department of Thoracic Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China
| | - Xinghua Gao
- Materials Genome Institute, Shanghai University, Shanghai 200444, China,Corresponding author at: Materials Genome Institute, Shanghai University, Shanghai 200444, China
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12
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Gharib G, Bütün İ, Muganlı Z, Kozalak G, Namlı İ, Sarraf SS, Ahmadi VE, Toyran E, van Wijnen AJ, Koşar A. Biomedical Applications of Microfluidic Devices: A Review. BIOSENSORS 2022; 12:bios12111023. [PMID: 36421141 PMCID: PMC9688231 DOI: 10.3390/bios12111023] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/30/2022] [Accepted: 11/08/2022] [Indexed: 05/26/2023]
Abstract
Both passive and active microfluidic chips are used in many biomedical and chemical applications to support fluid mixing, particle manipulations, and signal detection. Passive microfluidic devices are geometry-dependent, and their uses are rather limited. Active microfluidic devices include sensors or detectors that transduce chemical, biological, and physical changes into electrical or optical signals. Also, they are transduction devices that detect biological and chemical changes in biomedical applications, and they are highly versatile microfluidic tools for disease diagnosis and organ modeling. This review provides a comprehensive overview of the significant advances that have been made in the development of microfluidics devices. We will discuss the function of microfluidic devices as micromixers or as sorters of cells and substances (e.g., microfiltration, flow or displacement, and trapping). Microfluidic devices are fabricated using a range of techniques, including molding, etching, three-dimensional printing, and nanofabrication. Their broad utility lies in the detection of diagnostic biomarkers and organ-on-chip approaches that permit disease modeling in cancer, as well as uses in neurological, cardiovascular, hepatic, and pulmonary diseases. Biosensor applications allow for point-of-care testing, using assays based on enzymes, nanozymes, antibodies, or nucleic acids (DNA or RNA). An anticipated development in the field includes the optimization of techniques for the fabrication of microfluidic devices using biocompatible materials. These developments will increase biomedical versatility, reduce diagnostic costs, and accelerate diagnosis time of microfluidics technology.
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Affiliation(s)
- Ghazaleh Gharib
- Faculty of Engineering and Natural Science, Sabanci University, Istanbul 34956, Turkey
- Sabanci University Nanotechnology Research and Application Centre (SUNUM), Istanbul 34956, Turkey
- Center of Excellence for Functional Surfaces and Interfaces for Nano Diagnostics (EFSUN), Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul 34956, Turkey
| | - İsmail Bütün
- Faculty of Engineering and Natural Science, Sabanci University, Istanbul 34956, Turkey
| | - Zülâl Muganlı
- Faculty of Engineering and Natural Science, Sabanci University, Istanbul 34956, Turkey
| | - Gül Kozalak
- Faculty of Engineering and Natural Science, Sabanci University, Istanbul 34956, Turkey
- Center of Excellence for Functional Surfaces and Interfaces for Nano Diagnostics (EFSUN), Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul 34956, Turkey
| | - İlayda Namlı
- Faculty of Engineering and Natural Science, Sabanci University, Istanbul 34956, Turkey
| | | | | | - Erçil Toyran
- Faculty of Engineering and Natural Science, Sabanci University, Istanbul 34956, Turkey
| | - Andre J. van Wijnen
- Department of Biochemistry, University of Vermont, 89 Beaumont Avenue, Burlington, VT 05405, USA
| | - Ali Koşar
- Faculty of Engineering and Natural Science, Sabanci University, Istanbul 34956, Turkey
- Sabanci University Nanotechnology Research and Application Centre (SUNUM), Istanbul 34956, Turkey
- Center of Excellence for Functional Surfaces and Interfaces for Nano Diagnostics (EFSUN), Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul 34956, Turkey
- Turkish Academy of Sciences (TÜBA), Çankaya, Ankara 06700, Turkey
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13
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Tan J, Sun X, Zhang J, Li H, Kuang J, Xu L, Gao X, Zhou C. Exploratory Evaluation of EGFR-Targeted Anti-Tumor Drugs for Lung Cancer Based on Lung-on-a-Chip. BIOSENSORS 2022; 12:bios12080618. [PMID: 36005014 PMCID: PMC9405841 DOI: 10.3390/bios12080618] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 02/07/2023]
Abstract
In this study, we used three-dimensional (3D) printing to prepare a template of a microfluidic chip from which a polydimethylsiloxane (PDMS)lung chip was successfully constructed. The upper and lower channels of the chip are separated by a microporous membrane. The upper channel is seeded with lung cancer cells, and the lower channel is seeded with vascular endothelial cells and continuously perfused with cell culture medium. This lung chip can simulate the microenvironment of lung tissue and realize the coculture of two kinds of cells at different levels. We used a two-dimensional (2D) well plate and a 3D lung chip to evaluate the effects of different EGFR-targeting drugs (gefitinib, afatinib, and osimertinib) on tumor cells. The 3D lung chip was superior to the 2D well plate at evaluating the effect of drugs on the NCI-H650, and the results were more consistent with existing clinical data. For primary tumor cells, 3D lung chips have more advantages because they simulate conditions that are more similar to the physiological cell microenvironment. The evaluation of EGFR-targeted drugs on lung chips is of great significance for personalized diagnosis and treatment and pharmacodynamic evaluation.
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Affiliation(s)
- Jianfeng Tan
- Department of Thoracic Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510030, China
| | - Xindi Sun
- Materials Genome Institute, Shanghai University, Shanghai 200444, China
| | - Jianhua Zhang
- Department of Thoracic Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China
| | - Huili Li
- Department of Cardiovascular Surgery, Guangdong Provincial Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510030, China
| | - Jun Kuang
- Department of Thoracic Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China
| | - Lulu Xu
- Department of Cardiovascular Surgery, Guangdong Provincial Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510030, China
| | - Xinghua Gao
- Materials Genome Institute, Shanghai University, Shanghai 200444, China
- Correspondence: (X.G.); (C.Z.); Tel.: +86-6998-2223 (X.G.); +86-138-2218-2178 (C.Z.)
| | - Chengbin Zhou
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510030, China
- Department of Cardiovascular Surgery, Guangdong Provincial Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510030, China
- Correspondence: (X.G.); (C.Z.); Tel.: +86-6998-2223 (X.G.); +86-138-2218-2178 (C.Z.)
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14
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Khan AA, Akram K, Zaman A, Anwar Bég O, Bég TA. Electro-osmotic peristaltic flow and heat transfer in an ionic viscoelastic fluid through a curved micro-channel with viscous dissipation. Proc Inst Mech Eng H 2022; 236:1080-1092. [DOI: 10.1177/09544119221105848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Emerging systems in microfluidics are embracing bio-inspired designs in which boundaries are flexible and mimic peristaltic propulsion mechanisms encountered in nature. These devices utilize electro-kinetic body forces to manipulate very precisely ionic biofluids for a range of medical applications including. Motivated by exploring in more detail electro-hemorheological micro-pumping, in the current article, a mathematical model is developed for peristalsis propulsion of a viscoelastic biofluid in a curved microchannel with electro-osmotic effect and thermal transport under static axial electrical field and with viscous heating. The third grade Reiner-Rivlin model is deployed for blood rheology. The novelty of the current work is therefore the simultaneous consideration of electrokinetics, viscoelastic behavior with the third grade Reiner-Rivlin model and coupled flow and heat transport with viscous dissipation in peristaltic pumping in a curved micro-channel. A Poisson-Boltzmann formulation is adopted to simulate the charge number density associated with the electrical potential. Asymmetric zeta potential (25 mV) is prescribed and mobilizes an electric double layer (EDL). The governing conservation equations for mass, energy, momentum and electrical potential with associated boundary conditions are simplified using lubrication approximations and rendered dimensionless via appropriate scaling transformations. Analytical solutions are derived in the form of Bessel functions and numerical evaluations are conducted via the ND solver command in MATHEMATICA symbolic software. The simulations show that with stronger viscoelastic effect, boluses are eliminated and there is relaxation in streamlines in the core and peripheral regions of the micro-channel. Increasing Brinkman number (dissipation parameter) elevates temperatures. An increase in electrical double layer thickness initially produces a contraction in the upper bolus and an expansion (lateral) in the lower bolus in the micro-channel. With modification in zeta potential ratio parameter from positive to negative values, in the lower half of the micro-channel, axial flow deceleration is generated.
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Affiliation(s)
- Ambreen Afsar Khan
- Department of Mathematics and Statistics, International Islamic University, Islamabad, Pakistan
| | - Kaenat Akram
- Department of Mathematics and Statistics, International Islamic University, Islamabad, Pakistan
| | - Akbar Zaman
- Informatics Complex, International Islamic University, Islamabad, Pakistan
| | - O Anwar Bég
- Multi-Physical Engineering Sciences Group, Mechanical Engineering Department, School of Science, Engineering and Environment (SEE), University of Salford, Manchester, UK
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15
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Li W, Yao K, Tian L, Xue C, Zhang X, Gao X. 3D printing of heterogeneous microfibers with multi-hollow structure via microfluidic spinning. J Tissue Eng Regen Med 2022; 16:913-922. [PMID: 35802061 DOI: 10.1002/term.3339] [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: 03/08/2022] [Revised: 06/22/2022] [Accepted: 06/25/2022] [Indexed: 11/12/2022]
Abstract
Tissues with tubular structures play important roles in the human bodies, such as mass transport, nutrition exchange, and waste filtration. However, it remains a challenge to generate micro-scaffolds with well-defined luminal structure in biomedical field. In this study, we proposed a novel method to fabricate multi-component microfibers with multi-hollow structure via microfluidic spinning, which can subsequently be integrated with 3D printing for tissue-like block assembling. To achieve this goal, we fabricated a microchip using a 3D printed template with adjustable heights. Utilizing this microchip, we successfully generated the Calcium alginate microfibers with multi-components and defined hollow structures in a controllable manner. Then this microfluidic spinning method was integrated with a 3D mobile platform to assemble the microfibers into a grid-like 3D architecture. The resulted 3D scaffolds exhibited good organization and maintained the hollow structure of the fibers. Furthermore, we successfully developed a bronchus model utilizing this strategy by loading pulmonary bronchial epithelium cells and endothelial cells into microfibers with two hollow structures. The present strategy provides a potential platform to rebuild the lumen-like tissues using microfibers.
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Affiliation(s)
- Wei Li
- Materials Genome Institute, Shanghai University, Shanghai, China
| | - Kun Yao
- Materials Genome Institute, Shanghai University, Shanghai, China
| | - Lingling Tian
- Materials Genome Institute, Shanghai University, Shanghai, China
| | - Chang Xue
- Materials Genome Institute, Shanghai University, Shanghai, China
| | - Xu Zhang
- CAS Key Laboratory of SSAC, Department of Biotechnology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Xinghua Gao
- Materials Genome Institute, Shanghai University, Shanghai, China
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16
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Jung O, Tung YT, Sim E, Chen YC, Lee E, Ferrer M, Song MJ. Development of human-derived, three-dimensional respiratory epithelial tissue constructs with perfusable microvasculature on a high-throughput microfluidics screening platform. Biofabrication 2022; 14. [PMID: 35166694 PMCID: PMC10053540 DOI: 10.1088/1758-5090/ac32a5] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 10/22/2021] [Indexed: 11/12/2022]
Abstract
The COVID-19 pandemic has highlighted the need for human respiratory tract-based assay platforms for efficient discovery and development of antivirals and disease-modulating therapeutics. Physiologically relevant tissue models of the lower respiratory tract (LRT), including the respiratory bronchioles and the alveolar sacs, are of high interest because they are the primary site of severe SARS-CoV-2 infection and are most affected during the terminal stage of COVID-19. Current epithelial lung models used to study respiratory viral infections include lung epithelial cells at the air-liquid interface (ALI) with fibroblasts and endothelial cells, but such models do not have a perfusable microvascular network to investigate both viral infectivity and viral infection-induced thrombotic events. Using a high throughput, 64-chip microfluidic plate-based platform, we have developed two novel vascularized, LRT multi-chip models for the alveoli and the small airway. Both models include a perfusable microvascular network consisting of human primary microvascular endothelial cells, fibroblasts and pericytes. The established biofabrication protocols also enable the formation of differentiated lung epithelial layers at the ALI on top of the vascularized tissue bed. We validated the physiologically relevant cellular composition, architecture and perfusion of the vascularized lung tissue models using fluorescence microscopy, flow cytometry, and electrical resistance measurements. These vascularized, perfusable microfluidic lung tissue on high throughput assay platforms will enable the development of respiratory viral infection and disease models for research investigation and drug discovery.
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Affiliation(s)
- Olive Jung
- 3D Tissue Bioprinting Laboratory, Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States of America.,Biomedical Ultrasonics, Biotherapy and Biopharmaceuticals Laboratory, Institute of Biomedical Engineering, University of Oxford, Oxford, United Kingdom
| | - Yen-Ting Tung
- 3D Tissue Bioprinting Laboratory, Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States of America
| | - Esther Sim
- 3D Tissue Bioprinting Laboratory, Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States of America
| | - Yu-Chi Chen
- 3D Tissue Bioprinting Laboratory, Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States of America
| | - Emily Lee
- 3D Tissue Bioprinting Laboratory, Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States of America
| | - Marc Ferrer
- 3D Tissue Bioprinting Laboratory, Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States of America
| | - Min Jae Song
- 3D Tissue Bioprinting Laboratory, Department of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, United States of America
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17
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Tung YC, Wang CK, Huang YK, Huang CK, Peng CC, Patra B, Chen HK, Tsao PN, Ling TY. Identifying distinct oxygen diffusivity through type I pneumocyte-like cell layers using microfluidic device. Talanta 2022; 236:122882. [PMID: 34635262 DOI: 10.1016/j.talanta.2021.122882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/07/2021] [Accepted: 09/11/2021] [Indexed: 12/22/2022]
Abstract
Oxygen is necessary for cellular respiration in aerobic organisms. In animals, such as human, inhaled oxygen moves from the alveoli to the blood through alveolar epithelium into pulmonary capillaries. Up to now, different studies have been reported to examine experimental oxygen diffusivity for simple membrane or single-celled organisms; however, devices capable of precisely characterizing oxygen transportation through cell layers with dimensions similar to their physiological ones have not been developed. In this study, we establish an integrated approach exploiting a multi-layer microfluidic device and relative fluorescence lifetime detection apparatus to reliably measure oxygen diffusivity through a cell layer. In the experiments, different types of cells, including A549 and 3T3 cell lines, lung stem/progenitor cells, and the differentiated type I pneumocyte-like cells, are used to form cell layers within the devices for their oxygen diffusivity evaluation. A distinct facilitated oxygen transportation behavior of the differentiated type I pneumocyte-like cells that has never been discussed before is identified using the approach. The study offered a new in vitro approach to evaluate the oxygen diffusivity across cell layers in a microfluidic device and open a door to construct more physiologically meaningful in vitro model system to study respiratory systems.
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Affiliation(s)
- Yi-Chung Tung
- Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan
| | - Chien-Kai Wang
- Department of Mechanical Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Yung-Kang Huang
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Cheng-Kai Huang
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Chien-Chung Peng
- Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan
| | - Bishnubrata Patra
- Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan
| | - Hung-Kuan Chen
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan; Division of Neonatology, Department of Pediatrics, National Taiwan University Hospital, Taipei, 10041, Taiwan
| | - Po-Nien Tsao
- Division of Neonatology, Department of Pediatrics, National Taiwan University Hospital, Taipei, 10041, Taiwan; Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, 10051, Taiwan.
| | - Thai-Yen Ling
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan; Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, 10051, Taiwan.
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18
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Moreira A, Müller M, Costa PF, Kohl Y. Advanced In Vitro Lung Models for Drug and Toxicity Screening: The Promising Role of Induced Pluripotent Stem Cells. Adv Biol (Weinh) 2021; 6:e2101139. [PMID: 34962104 DOI: 10.1002/adbi.202101139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/25/2021] [Indexed: 12/24/2022]
Abstract
The substantial socioeconomic burden of lung diseases, recently highlighted by the disastrous impact of the coronavirus disease 2019 (COVID-19) pandemic, accentuates the need for interventive treatments capable of decelerating disease progression, limiting organ damage, and contributing to a functional tissue recovery. However, this is hampered by the lack of accurate human lung research models, which currently fail to reproduce the human pulmonary architecture and biochemical environment. Induced pluripotent stem cells (iPSCs) and organ-on-chip (OOC) technologies possess suitable characteristics for the generation of physiologically relevant in vitro lung models, allowing for developmental studies, disease modeling, and toxicological screening. Importantly, these platforms represent potential alternatives for animal testing, according to the 3Rs (replace, reduce, refine) principle, and hold promise for the identification and approval of new chemicals under the European REACH (registration, evaluation, authorization and restriction of chemicals) framework. As such, this review aims to summarize recent progress made in human iPSC- and OOC-based in vitro lung models. A general overview of the present applications of in vitro lung models is presented, followed by a summary of currently used protocols to generate different lung cell types from iPSCs. Lastly, recently developed iPSC-based lung models are discussed.
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Affiliation(s)
| | - Michelle Müller
- Department of Bioprocessing and Bioanalytics, Fraunhofer Institute for Biomedical Engineering IBMT, Joseph-von-Fraunhofer-Weg 1, 66280, Sulzbach, Germany
| | - Pedro F Costa
- BIOFABICS, Rua Alfredo Allen 455, Porto, 4200-135, Portugal
| | - Yvonne Kohl
- Department of Bioprocessing and Bioanalytics, Fraunhofer Institute for Biomedical Engineering IBMT, Joseph-von-Fraunhofer-Weg 1, 66280, Sulzbach, Germany.,Postgraduate Course for Toxicology and Environmental Toxicology, Medical Faculty, University of Leipzig, Johannisallee 28, 04103, Leipzig, Germany
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19
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Patel V, Amin K, Allen D, Ukishima L, Wahab A, Grodi C, Behrsing H. Comparison of Long-term Human Precision-cut Lung Slice Culture Methodology and Response to Challenge: An Argument for Standardisation. Altern Lab Anim 2021; 49:209-222. [PMID: 34836458 DOI: 10.1177/02611929211061884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
As non-animal alternatives gain acceptance, a need for harmonised testing strategies has emerged. Arguably the most physiologically-relevant model for assessing potential respiratory toxicants, that based on human precision-cut lung slices (hPCLS) has been utilised in many laboratories, but a variety of culture methodologies are employed. In this pilot study, combinations of three different hPCLS culture methods (dynamic organ roller culture (DOC), air-liquid interface (ALI) and submersion) and various media (based on E-199, DMEM/F12 and RPMI-1640) were compared. The hPCLS were assessed in terms of their viability and responsiveness to challenge. The endpoints selected to compare the medium-method (M-M) combinations, which included histological features and viability, were evaluated at day 14 (D14) and day 28 (D28); protein and adenylate kinase (AK) content, and cytokine response to immunostimulants (lipopolysaccharide (LPS) at 5 μg/ml; polyinosinic:polycytidylic acid (Poly I:C) at 15 μg/ml) were evaluated at D28 only. Based on the set of endpoints assessed at D28, it was clear that certain culture conditions significantly affected the hPCLS, with the tissue retaining more of its native features and functionality (in terms of cytokine response) in some of the M-M combinations tested more than others. This pilot study indicates that the use of appropriate M-M combinations can help maintain the health and functional responses of hPCLS, and highlights the need for the standardisation of culture conditions in order to facilitate effective inter-laboratory comparisons and encourage greater acceptance by the regulatory community.
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Affiliation(s)
- Vivek Patel
- Respiratory Toxicology, 329003Institute for In Vitro Sciences, Inc., Gaithersburg, MD, USA
| | - Khalid Amin
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - David Allen
- Integrated Laboratory Systems, Inc., Morrisville, NC, USA
| | - Lindsey Ukishima
- Respiratory Toxicology, 329003Institute for In Vitro Sciences, Inc., Gaithersburg, MD, USA
| | - Adam Wahab
- Respiratory Toxicology, 329003Institute for In Vitro Sciences, Inc., Gaithersburg, MD, USA
| | - Chad Grodi
- Respiratory Toxicology, 329003Institute for In Vitro Sciences, Inc., Gaithersburg, MD, USA
| | - Holger Behrsing
- Respiratory Toxicology, 329003Institute for In Vitro Sciences, Inc., Gaithersburg, MD, USA
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20
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Helena Macedo M, Baião A, Pinto S, Barros AS, Almeida H, Almeida A, das Neves J, Sarmento B. Mucus-producing 3D cell culture models. Adv Drug Deliv Rev 2021; 178:113993. [PMID: 34619286 DOI: 10.1016/j.addr.2021.113993] [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: 06/09/2021] [Revised: 08/23/2021] [Accepted: 09/29/2021] [Indexed: 10/20/2022]
Abstract
In vitro cell-based models have been used for a long time since they are normally easily obtained and have an advantageous cost-benefit. Besides, they can serve a variety of ends, from studying drug absorption and metabolism to disease modeling. However, some in vitro models are too simplistic, not accurately representing the living tissues. It has been shown, mainly in the last years, that fully mimicking a tissue composition and architecture can be paramount for cellular behavior and, consequently, for the outcomes of the studies using such models. Because of this, 3D in vitro cell models have been gaining much attention, since they are able to better replicate the in vivo environment. In this review we focus on 3D models that contain mucus-producing cells, as mucus can play a pivotal role in drug absorption. Being frequently overlooked, this viscous fluid can have an impact on drug delivery. Thus, the aim of this review is to understand to which extent can mucus affect mucosal drug delivery and to provide a state-of-the-art report on the existing 3D cell-based mucus models.
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21
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Schneider MR, Oelgeschlaeger M, Burgdorf T, van Meer P, Theunissen P, Kienhuis AS, Piersma AH, Vandebriel RJ. Applicability of organ-on-chip systems in toxicology and pharmacology. Crit Rev Toxicol 2021; 51:540-554. [PMID: 34463591 DOI: 10.1080/10408444.2021.1953439] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Organ-on-chip (OoC) systems are microfabricated cell culture devices designed to model functional units of human organs by harboring an in vitro generated organ surrogate. In the present study, we reviewed issues and opportunities related to the application of OoC in the safety and efficacy assessment of chemicals and pharmaceuticals, as well as the steps needed to achieve this goal. The relative complexity of OoC over simple in vitro assays provides advantages and disadvantages in the context of compound testing. The broader biological domain of OoC potentially enhances their predictive value, whereas their complexity present issues with throughput, standardization and transferability. Using OoCs for regulatory purposes requires detailed and standardized protocols, providing reproducible results in an interlaboratory setting. The extent to which interlaboratory standardization of OoC is feasible and necessary for regulatory application is a matter of debate. The focus of applying OoCs in safety assessment is currently directed to characterization (the biology represented in the test) and qualification (the performance of the test). To this aim, OoCs are evaluated on a limited scale, especially in the pharmaceutical industry, with restricted sets of reference substances. Given the low throughput of OoC, it is questionable whether formal validation, in which many reference substances are extensively tested in different laboratories, is feasible for OoCs. Rather, initiatives such as open technology platforms, and collaboration between OoC developers and risk assessors may prove an expedient strategy to build confidence in OoCs for application in safety and efficacy assessment.
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Affiliation(s)
- Marlon R Schneider
- German Centre for the Protection of Laboratory Animals (Bf3R), German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Michael Oelgeschlaeger
- German Centre for the Protection of Laboratory Animals (Bf3R), German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Tanja Burgdorf
- German Centre for the Protection of Laboratory Animals (Bf3R), German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Peter van Meer
- Section on Pharmacology, Toxicology and Kinetics, Medicines Evaluation Board, Utrecht, The Netherlands.,Department of Pharmaceutics, Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Peter Theunissen
- Section on Pharmacology, Toxicology and Kinetics, Medicines Evaluation Board, Utrecht, The Netherlands
| | - Anne S Kienhuis
- Laboratory for Health Protection, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
| | - Aldert H Piersma
- Laboratory for Health Protection, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
| | - Rob J Vandebriel
- Laboratory for Health Protection, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
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22
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Mattei F, Andreone S, Mencattini A, De Ninno A, Businaro L, Martinelli E, Schiavoni G. Oncoimmunology Meets Organs-on-Chip. Front Mol Biosci 2021; 8:627454. [PMID: 33842539 PMCID: PMC8032996 DOI: 10.3389/fmolb.2021.627454] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 03/04/2021] [Indexed: 01/04/2023] Open
Abstract
Oncoimmunology represents a biomedical research discipline coined to study the roles of immune system in cancer progression with the aim of discovering novel strategies to arm it against the malignancy. Infiltration of immune cells within the tumor microenvironment is an early event that results in the establishment of a dynamic cross-talk. Here, immune cells sense antigenic cues to mount a specific anti-tumor response while cancer cells emanate inhibitory signals to dampen it. Animals models have led to giant steps in this research context, and several tools to investigate the effect of immune infiltration in the tumor microenvironment are currently available. However, the use of animals represents a challenge due to ethical issues and long duration of experiments. Organs-on-chip are innovative tools not only to study how cells derived from different organs interact with each other, but also to investigate on the crosstalk between immune cells and different types of cancer cells. In this review, we describe the state-of-the-art of microfluidics and the impact of OOC in the field of oncoimmunology underlining the importance of this system in the advancements on the complexity of tumor microenvironment.
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Affiliation(s)
- Fabrizio Mattei
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Sara Andreone
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Arianna Mencattini
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy.,Interdisciplinary Center for Advanced Studies on Lab-on-Chip and Organ-on-Chip Applications (ICLOC), University of Rome Tor Vergata, Rome, Italy
| | - Adele De Ninno
- Institute for Photonics and Nanotechnologies, Italian National Research Council, Rome, Italy
| | - Luca Businaro
- Institute for Photonics and Nanotechnologies, Italian National Research Council, Rome, Italy
| | - Eugenio Martinelli
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy.,Interdisciplinary Center for Advanced Studies on Lab-on-Chip and Organ-on-Chip Applications (ICLOC), University of Rome Tor Vergata, Rome, Italy
| | - Giovanna Schiavoni
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
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23
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Mahfouzi SH, Amoabediny G, Safiabadi Tali SH. Advances in bioreactors for lung bioengineering: From scalable cell culture to tissue growth monitoring. Biotechnol Bioeng 2021; 118:2142-2167. [PMID: 33629350 DOI: 10.1002/bit.27728] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/23/2021] [Accepted: 02/23/2021] [Indexed: 12/17/2022]
Abstract
Lung bioengineering has emerged to resolve the current lung transplantation limitations and risks, including the shortage of donor organs and the high rejection rate of transplanted lungs. One of the most critical elements of lung bioengineering is bioreactors. Bioreactors with different applications have been developed in the last decade for lung bioengineering approaches, aiming to produce functional reproducible tissue constructs. Here, the current status and advances made in the development and application of bioreactors for bioengineering lungs are comprehensively reviewed. First, bioreactor design criteria are explained, followed by a discussion on using bioreactors as a culture system for scalable expansion and proliferation of lung cells, such as producing epithelial cells from induced pluripotent stem cells (iPSCs). Next, bioreactor systems facilitating and improving decellularization and recellularization of lung tissues are discussed, highlighting the studies that developed bioreactors for producing engineered human-sized lungs. Then, monitoring bioreactors are reviewed, showing their ability to evaluate and optimize the culture conditions for maturing engineered lung tissues, followed by an explanation on the ability of ex vivo lung perfusion systems for reconditioning the lungs before transplantation. After that, lung cancer studies simplified by bioreactors are discussed, showing the potentials of bioreactors in lung disease modeling. Finally, other platforms with the potential of facilitating lung bioengineering are described, including the in vivo bioreactors and lung-on-a-chip models. In the end, concluding remarks and future directions are put forward to accelerate lung bioengineering using bioreactors.
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Affiliation(s)
- Seyed Hossein Mahfouzi
- Department of Biomedical Engineering, The Research Center for New Technologies in Life Science Engineering, University of Tehran, Tehran, Iran
| | - Ghassem Amoabediny
- Department of Biomedical Engineering, The Research Center for New Technologies in Life Science Engineering, University of Tehran, Tehran, Iran.,Department of Biotechnology and Pharmaceutical Engineering, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Seyed Hamid Safiabadi Tali
- Department of Biomedical Engineering, The Research Center for New Technologies in Life Science Engineering, University of Tehran, Tehran, Iran
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24
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Building three-dimensional lung models for studying pharmacokinetics of inhaled drugs. Adv Drug Deliv Rev 2021; 170:386-395. [PMID: 32971227 DOI: 10.1016/j.addr.2020.09.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 08/15/2020] [Accepted: 09/17/2020] [Indexed: 12/17/2022]
Abstract
Drug development is a critical step in the development pipeline of pharmaceutical industry, commonly performed in traditional cell culture and animal models. Though, those models hold critical gapsin the prediction and the translation of human pharmacokinetic (PK) and pharmacodynamics (PD) parameters. The advances in tissue engineering have allowed the combination of cell biology with microengineering techniques, offering alternatives to conventional preclinical models. Organ-on-a-chips and three-dimensional (3D) bioprinting models present the potentialityof simulating the physiological and pathological microenvironment of living organs and tissues, constituting this way,more realistic models for the assessment of absorption, distribution, metabolism and excretion (ADME) of drugs. Therefore, this review will focus on lung-on-a-chip and 3D bioprinting techniques for developing lung models that can be usedfor predicting PK/PD parameters.
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25
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Calcagno TM, Zhang C, Tian R, Ebrahimi B, Mirsaeidi M. Novel three-dimensional biochip pulmonary sarcoidosis model. PLoS One 2021; 16:e0245805. [PMID: 33539409 PMCID: PMC7861546 DOI: 10.1371/journal.pone.0245805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 01/07/2021] [Indexed: 02/07/2023] Open
Abstract
Sarcoidosis is a multi-system disorder of granulomatous inflammation which most commonly affects the lungs. Its etiology and pathogenesis are not well defined in part due to the lack of reliable modeling. Here, we present the development of an in vitro three-dimensional lung-on-chip biochip designed to mimic granuloma formation. A lung on chip fluidic macrodevice was developed and added to our previously developed a lung-on-membrane model (LOMM). Granulomas were cultured from blood samples of patients with sarcoidosis and then inserted in the air-lung-interface of the microchip to create a three-dimensional biochip pulmonary sarcoidosis model (3D BSGM). Cytokines were measured after 48 hours. ELISA testing was performed to measure cytokine response difference between LOMM with 3D BSGM. There were statistically significant differences in IL-1ß (P = 0.001953), IL-6 (P = 0.001953), GM-CSF (P = 0.001953), and INF-γ expressions (P = 0.09375) between two groups. The current model represents the first 3D biochip sarcoidosis model created by adding a microfluidics system to a dual-chambered lung on membrane model and introducing developed sarcoid-granuloma to its air-lung-interface.
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Affiliation(s)
- Tess M. Calcagno
- Department of Medicine, University of Miami, Miami, FL, United States of America
| | - Chongxu Zhang
- Division of Pulmonary and Critical Care, University of Miami, Miami, FL, United States of America
| | - Runxia Tian
- Division of Pulmonary and Critical Care, University of Miami, Miami, FL, United States of America
| | - Babak Ebrahimi
- Research and Development, Genix-Engineering, Irvin, California, United States of America
| | - Mehdi Mirsaeidi
- Division of Pulmonary and Critical Care, University of Miami, Miami, FL, United States of America
- * E-mail:
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26
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Li W, Sun X, Ji B, Yang X, Zhou B, Lu Z, Gao X. PLGA Nanofiber/PDMS Microporous Composite Membrane-Sandwiched Microchip for Drug Testing. MICROMACHINES 2020; 11:mi11121054. [PMID: 33260653 PMCID: PMC7760955 DOI: 10.3390/mi11121054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/13/2020] [Accepted: 11/24/2020] [Indexed: 02/06/2023]
Abstract
Lung-on-a-chip devices could provide new strategies for a biomimetic lung cell microenvironment and construction of lung disease models in vitro, and are expected to greatly promote the development of drug evaluation, toxicological detection, and disease model building. In this study, we developed a novel poly (lactic-co-glycolic acid) (PLGA) nanofiber/polydimethylsiloxane (PDMS) microporous composite membrane-sandwiched lung-on-a-chip to perform anti-tumor drug testing. The composite membrane was characterized, and the results showed that it was permeable to molecules and thus could be used to study small-molecule drug diffusion. In addition, the microchip could apply perfusion fluids to simulate blood flow under extremely low fluid shear stress, and could also simulate the spherical-like shape of the alveoli by deformation of the composite membrane. Using this chip, we evaluated the anti-tumor drug efficacy of gefitinib in two kinds of non-small cell lung cancer cells, the lung adenocarcinoma NCI-H1650 cell line and the large cell lung cancer NCI-H460 cell line. We further probed the resistance of NCI-H460 cells to gefitinib under normoxic and hypoxic conditions. The established composite membrane-sandwiched lung chip can simulate more biochemical and biophysical factors in the lung physiological and pathological microenvironment, and it has important applications in the personalized treatment of lung tumors. It is expected to play a potential role in clinical diagnosis and drug screening.
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Affiliation(s)
- Wei Li
- Materials Genome Institute, Shanghai University, Shanghai 200444, China; (W.L.); (X.S.); (X.Y.)
| | - Xindi Sun
- Materials Genome Institute, Shanghai University, Shanghai 200444, China; (W.L.); (X.S.); (X.Y.)
| | - Bing Ji
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Macau 999078, China; (B.J.); (B.Z.)
| | - Xingyuan Yang
- Materials Genome Institute, Shanghai University, Shanghai 200444, China; (W.L.); (X.S.); (X.Y.)
| | - Bingpu Zhou
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Macau 999078, China; (B.J.); (B.Z.)
| | - Zhanjun Lu
- Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
- Correspondence: (Z.L.); (X.G.)
| | - Xinghua Gao
- Materials Genome Institute, Shanghai University, Shanghai 200444, China; (W.L.); (X.S.); (X.Y.)
- Correspondence: (Z.L.); (X.G.)
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27
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Movia D, Prina-Mello A. Preclinical Development of Orally Inhaled Drugs (OIDs)-Are Animal Models Predictive or Shall We Move Towards In Vitro Non-Animal Models? Animals (Basel) 2020; 10:E1259. [PMID: 32722259 PMCID: PMC7460012 DOI: 10.3390/ani10081259] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 12/18/2022] Open
Abstract
Respiratory diseases constitute a huge burden in our society, and the global respiratory drug market currently grows at an annual rate between 4% and 6%. Inhalation is the preferred administration method for treating respiratory diseases, as it: (i) delivers the drug directly at the site of action, resulting in a rapid onset; (ii) is painless, thus improving patients' compliance; and (iii) avoids first-pass metabolism reducing systemic side effects. Inhalation occurs through the mouth, with the drug generally exerting its therapeutic action in the lungs. In the most recent years, orally inhaled drugs (OIDs) have found application also in the treatment of systemic diseases. OIDs development, however, currently suffers of an overall attrition rate of around 70%, meaning that seven out of 10 new drug candidates fail to reach the clinic. Our commentary focuses on the reasons behind the poor OIDs translation into clinical products for the treatment of respiratory and systemic diseases, with particular emphasis on the parameters affecting the predictive value of animal preclinical tests. We then review the current advances in overcoming the limitation of animal animal-based studies through the development and adoption of in vitro, cell-based new approach methodologies (NAMs).
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Affiliation(s)
- Dania Movia
- Laboratory for Biological Characterisation of Advanced Materials (LBCAM), Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College, The University of Dublin, Dublin D8, Ireland;
| | - Adriele Prina-Mello
- Laboratory for Biological Characterisation of Advanced Materials (LBCAM), Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College, The University of Dublin, Dublin D8, Ireland;
- AMBER Centre, CRANN Institute, Trinity College, The University of Dublin, Dublin D2, Ireland
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28
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Wang J, Qian Z, Cui C, Guo Z, Ren L. Structure Design and Optimization of the C5-C6 Cervical Intervertebral Fusion Cage Using the Anterior Cervical Plate and Cage Fixation System. Med Sci Monit 2020; 26:e924236. [PMID: 32655127 PMCID: PMC7377005 DOI: 10.12659/msm.924236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background The fifth and sixth cervical vertebra (C5–C6) is the most easily injured segment encountered in clinical practice. The anterior cervical plate and cage (ACPC) fixation system is always used to reconstruct the intervertebral height and maintain the segmental stability. The postoperative effect, such as subsidence, neck pain, and non-fusion, is greatly affected by the cervical cage structure design. This study determined reasonable structure size parameters that present optimized biomechanical properties related to the postoperative subsidence often accompanied with ACPC. Material/Methods Twenty bionic cages with different structural sizes (distance between the center of the cage and groove, groove depth, and groove width) were designed and analyzed based on the regression optimization design and analysis method combined with FE analysis. Because a previous study showed that greater stresses on the endplate are associated with higher risk of subsidence, the optimization object was selected as the stresses on endplate to lower it. Results The postoperative stresses on the endplate of all cages with bionic structure design were proved to be lower than with the original one. The optimal structure size was the distance between the center of the cage and groove=0 mm, groove depth=3 mm, and groove width=4 mm. Regression analysis found the cage with optimized bionic structural parameters resulted in a 22.58% reduction of endplate stress response compared with the original one. Conclusions The bionic cage with optimized structural sizes can reduce the subsidence risk, suggesting that the optimization method has great potential applications in the biomechanical engineering field.
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Affiliation(s)
- Jiajia Wang
- College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang, Henan, China (mainland).,Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun, Jilin, China (mainland)
| | - Zhihui Qian
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun, Jilin, China (mainland)
| | - Changlei Cui
- Department of Anesthesiology, First Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Zhijun Guo
- College of Vehicle and Transportation Engineering, Henan University of Science and Technology, Luoyang, Henan, China (mainland)
| | - Luquan Ren
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun, Jilin, China (mainland)
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29
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Amin Arefi SM, Tony Yang CW, Sin DD, Feng JJ. Simulation of nanoparticle transport and adsorption in a microfluidic lung-on-a-chip device. BIOMICROFLUIDICS 2020; 14:044117. [PMID: 32849976 PMCID: PMC7443171 DOI: 10.1063/5.0011353] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 07/27/2020] [Indexed: 05/12/2023]
Abstract
The effect of air-borne nanoparticles (NPs) on human health is an active area of research, with clinical relevance evidenced by the current COVID-19 pandemic. As in vitro models for such studies, lung-on-a-chip (LOAC) devices can represent key physical and physiological aspects of alveolar tissues. However, widespread adoption of the LOAC device for NP testing has been hampered by low intra-laboratory and inter-laboratory reproducibility. To complement ongoing experimental work, we carried out finite-element simulations of the deposition of NPs on the epithelial layer of a well-established LOAC design. We solved the Navier-Stokes equations for the fluid flow in a three-dimensional domain and studied the particle transport using Eulerian advection-diffusion for fine NPs and Lagrangian particle tracking for coarse NPs. Using Langmuir and Frumkin kinetics for surface adsorption and desorption, we investigated NP adsorption under different exercise and breath-holding patterns. Conditions mimicking physical exercise, through changes in air-flow volume and breathing frequency, enhance particle deposition. Puff profiles typical of smoking, with breath-holding between inhalation and exhalation, also increase particle deposition per breathing cycle. Lagrangian particle tracking shows Brownian motion and gravitational settling to be two key factors, which may cooperate or compete with each other for different particle sizes. Comparisons are made with experimental data where possible and they show qualitative and semi-quantitative agreement. These results suggest that computer simulations can potentially inform and accelerate the design and application of LOAC devices for analyzing particulate- and microbe-alveolar interactions.
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Affiliation(s)
- S. M. Amin Arefi
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Cheng Wei Tony Yang
- Centre for Heart Lung Innovation, University of British Columbia, Vancouver, British Columbia V6Z 1Y6, Canada
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