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Sitte ZR, Karlsson EE, Li H, Zhou H, Lockett MR. Continuous flow delivery system for the perfusion of scaffold-based 3D cultures. LAB ON A CHIP 2024; 24:4105-4114. [PMID: 39099241 DOI: 10.1039/d4lc00480a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/06/2024]
Abstract
The paper-based culture platform developed by Whitesides readily incorporates tissue-like structures into laboratories with established workflows that rely on monolayer cultures. Cell-laden hydrogels are deposited in these porous scaffolds with micropipettes; these scaffolds support the thin gel slabs, allowing them to be evaluated individually or stacked into thick constructs. The paper-based culture platform has inspired many basic and translational studies, each exploring how readily accessible materials can generate complex structures that mimic aspects of tissues in vivo. Many of these examples have relied on static culture conditions, which result in diffusion-limited environments and cells experiencing pericellular hypoxia. Perfusion-based systems can alleviate pericellular hypoxia and other cell stresses by continually exposing the cells to fresh medium. These perfusion systems are common in microfluidic and organ-on-chip devices supporting cells as monolayer cultures or as 3D constructs. Here, we introduce a continuous flow delivery system, which uses parts readily produced with 3D printing to provide a self-contained culture platform in which cells in paper or other scaffolds are exposed to fresh (flowing) medium. We demonstrate the utility of this device with examples of cells maintained in single cell-laden scaffolds, stacks of cell-laden scaffolds, and scaffolds that contain monolayers of endothelial cells. These demonstrations highlight some possible experimental questions that can be enabled with readily accessible culture materials and a perfusion-based device that can be readily fabricated.
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Affiliation(s)
- Zachary R Sitte
- Department of Chemistry, University of North Carolina at Chapel Hill, 125 South Road, Chapel Hill, NC 27599-3290, USA.
| | - Elizabeth E Karlsson
- Department of Chemistry, University of North Carolina at Chapel Hill, 125 South Road, Chapel Hill, NC 27599-3290, USA.
| | - Haolin Li
- Department of Biostatistics, University of North Carolina at Chapel Hill, 135 Dauer Drive, Chapel Hill, NC 27599-7400, USA
| | - Haibo Zhou
- Department of Biostatistics, University of North Carolina at Chapel Hill, 135 Dauer Drive, Chapel Hill, NC 27599-7400, USA
- UNC Center for Environmental Health and Susceptibility, University of North Carolina at Chapel Hill, 135 Dauer Drive, Chapel Hill, NC 27599-7400, USA
| | - Matthew R Lockett
- Department of Chemistry, University of North Carolina at Chapel Hill, 125 South Road, Chapel Hill, NC 27599-3290, USA.
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, 450 West Drive, Chapel Hill, NC 27599-7295, USA
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2
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Moerkens R, Mooiweer J, Ramírez-Sánchez AD, Oelen R, Franke L, Wijmenga C, Barrett RJ, Jonkers IH, Withoff S. An iPSC-derived small intestine-on-chip with self-organizing epithelial, mesenchymal, and neural cells. Cell Rep 2024; 43:114247. [PMID: 38907996 DOI: 10.1016/j.celrep.2024.114247] [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: 02/23/2024] [Revised: 04/10/2024] [Accepted: 05/02/2024] [Indexed: 06/24/2024] Open
Abstract
Human induced pluripotent stem cell (hiPSC)-derived intestinal organoids are valuable tools for researching developmental biology and personalized therapies, but their closed topology and relative immature state limit applications. Here, we use organ-on-chip technology to develop a hiPSC-derived intestinal barrier with apical and basolateral access in a more physiological in vitro microenvironment. To replicate growth factor gradients along the crypt-villus axis, we locally expose the cells to expansion and differentiation media. In these conditions, intestinal epithelial cells self-organize into villus-like folds with physiological barrier integrity, and myofibroblasts and neurons emerge and form a subepithelial tissue in the bottom channel. The growth factor gradients efficiently balance dividing and mature cell types and induce an intestinal epithelial composition, including absorptive and secretory lineages, resembling the composition of the human small intestine. This well-characterized hiPSC-derived intestine-on-chip system can facilitate personalized studies on physiological processes and therapy development in the human small intestine.
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Affiliation(s)
- Renée Moerkens
- Department of Genetics, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, the Netherlands
| | - Joram Mooiweer
- Department of Genetics, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, the Netherlands
| | - Aarón D Ramírez-Sánchez
- Department of Genetics, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, the Netherlands
| | - Roy Oelen
- Department of Genetics, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, the Netherlands; Oncode Institute, 3521 AL Utrecht, the Netherlands
| | - Lude Franke
- Department of Genetics, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, the Netherlands; Oncode Institute, 3521 AL Utrecht, the Netherlands
| | - Cisca Wijmenga
- Department of Genetics, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, the Netherlands
| | - Robert J Barrett
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; F. Widjaja Foundation Inflammatory Bowel Disease Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Iris H Jonkers
- Department of Genetics, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, the Netherlands
| | - Sebo Withoff
- Department of Genetics, University of Groningen, University Medical Center Groningen, 9700 RB Groningen, the Netherlands.
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Kwak D, Im Y, Nam H, Nam U, Kim S, Kim W, Kim HJ, Park J, Jeon JS. Analyzing the effects of helical flow in blood vessels using acoustofluidic-based dynamic flow generator. Acta Biomater 2024; 177:216-227. [PMID: 38253303 DOI: 10.1016/j.actbio.2024.01.021] [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: 09/07/2023] [Revised: 12/26/2023] [Accepted: 01/16/2024] [Indexed: 01/24/2024]
Abstract
The effects of helical flow in a blood vessel are investigated in a dynamic flow generator using surface acoustic wave (SAW) in the microfluidic device. The SAW, generated by an interdigital transducer (IDT), induces acoustic streaming, resulting in a stable and consistent helical flow pattern in microscale channels. This approach allows rapid development of helical flow within the channel without directly contacting the medium. The precise design of the window enables the creation of distinct unidirectional vortices, which can be controlled by adjusting the amplitude of the SAW. Within this device, optimal operational parameters of the dynamic flow generator to preserve the integrity of endothelial cells are found, and in such settings, the actin filaments within the cells are aligned to the desired state. Our findings reveal that intracellular Ca2+ concentrations vary in response to flow conditions. Specifically, comparable maximum intensity and graphical patterns were observed between low-flow rate helical flow and high-flow rate Hagen-Poiseuille flow. These suggest that the cells respond to the helical flow through mechanosensitive ion channels. Finally, adherence of monocytes is effectively reduced under helical flow conditions in an inflammatory environment, highlighting the atheroprotective role of helical flow. STATEMENT OF SIGNIFICANCE: Helical flow in blood vessels is well known to prevent atherosclerosis. However, despite efforts to replicate helical flow in microscale channels, there is still a lack of in vitro models which can generate helical flow for analyzing its effects on the vascular system. In this study, we developed a method for generating steady and constant helical flow in microfluidic channel using acoustofluidic techniques. By utilizing this dynamic flow generator, we were able to observe the atheroprotective aspects of helical flow in vitro, including the enhancement of calcium ion flux and reduction of monocyte adhesion. This study paves the way for an in vitro model of dynamic cell culture and offers advanced investigation into helical flow in our circulatory system.
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Affiliation(s)
- Daesik Kwak
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Yongtaek Im
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Hyeono Nam
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Ungsig Nam
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Seunggyu Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Woohyuk Kim
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hyun Jin Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jinsoo Park
- School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jessie S Jeon
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.
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4
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Lee E, Chan SL, Lee Y, Polacheck WJ, Kwak S, Wen A, Nguyen DHT, Kutys ML, Alimperti S, Kolarzyk AM, Kwak TJ, Eyckmans J, Bielenberg DR, Chen H, Chen CS. A 3D biomimetic model of lymphatics reveals cell-cell junction tightening and lymphedema via a cytokine-induced ROCK2/JAM-A complex. Proc Natl Acad Sci U S A 2023; 120:e2308941120. [PMID: 37782785 PMCID: PMC10576061 DOI: 10.1073/pnas.2308941120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/04/2023] [Indexed: 10/04/2023] Open
Abstract
Impaired lymphatic drainage and lymphedema are major morbidities whose mechanisms have remained obscure. To study lymphatic drainage and its impairment, we engineered a microfluidic culture model of lymphatic vessels draining interstitial fluid. This lymphatic drainage-on-chip revealed that inflammatory cytokines that are known to disrupt blood vessel junctions instead tightened lymphatic cell-cell junctions and impeded lymphatic drainage. This opposing response was further demonstrated when inhibition of rho-associated protein kinase (ROCK) was found to normalize fluid drainage under cytokine challenge by simultaneously loosening lymphatic junctions and tightening blood vessel junctions. Studies also revealed a previously undescribed shift in ROCK isoforms in lymphatic endothelial cells, wherein a ROCK2/junctional adhesion molecule-A (JAM-A) complex emerges that is responsible for the cytokine-induced lymphatic junction zippering. To validate these in vitro findings, we further demonstrated in a genetic mouse model that lymphatic-specific knockout of ROCK2 reversed lymphedema in vivo. These studies provide a unique platform to generate interstitial fluid pressure and measure the drainage of interstitial fluid into lymphatics and reveal a previously unappreciated ROCK2-mediated mechanism in regulating lymphatic drainage.
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Affiliation(s)
- Esak Lee
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA02115
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA02215
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY14853
| | - Siu-Lung Chan
- Vascular Biology Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA02115
| | - Yang Lee
- Vascular Biology Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA02115
| | - William J. Polacheck
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA02115
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA02215
| | - Sukyoung Kwak
- Vascular Biology Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA02115
| | - Aiyun Wen
- Vascular Biology Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA02115
| | - Duc-Huy T. Nguyen
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA02115
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA02215
| | - Matthew L. Kutys
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA02115
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA02215
| | - Stella Alimperti
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA02115
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA02215
| | - Anna M. Kolarzyk
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY14853
| | - Tae Joon Kwak
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY14853
| | - Jeroen Eyckmans
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA02115
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA02215
| | - Diane R. Bielenberg
- Vascular Biology Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA02115
| | - Hong Chen
- Vascular Biology Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA02115
| | - Christopher S. Chen
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA02115
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA02215
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5
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Ilan IS, Yslas AR, Peng Y, Lu R, Lee E. A 3D Human Lymphatic Vessel-on-Chip Reveals the Roles of Interstitial Flow and VEGF-A/C for Lymphatic Sprouting and Discontinuous Junction Formation. Cell Mol Bioeng 2023; 16:325-339. [PMID: 37811004 PMCID: PMC10550886 DOI: 10.1007/s12195-023-00780-0] [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: 02/15/2023] [Accepted: 08/14/2023] [Indexed: 10/10/2023] Open
Abstract
Introduction Lymphatic vessels (LVs) maintain fluid homeostasis by draining excess interstitial fluid, which is accomplished by two distinct LVs: initial LVs and collecting LVs. The interstitial fluid is first drained into the initial LVs through permeable "button-like" lymphatic endothelial cell (LEC) junctions. Next, the drained fluid ("lymph") transports to lymph nodes through the collecting LVs with less permeable "zipper-like" junctions that minimize loss of lymph. Despite the significance of LEC junctions in lymphatic drainage and transport, it remains unclear how luminal or interstitial flow affects LEC junctions in vascular endothelial growth factors A and C (VEGF-A and VEGF-C) conditions. Moreover, it remains unclear how these flow and growth factor conditions impact lymphatic sprouting. Methods We developed a 3D human lymphatic vessel-on-chip that can generate four different flow conditions (no flow, luminal flow, interstitial flow, both luminal and interstitial flow) to allow an engineered, rudimentary LV to experience those flows and respond to them in VEGF-A/C. Results We examined LEC junction discontinuities, lymphatic sprouting, LEC junction thicknesses, and cell contractility-dependent vessel diameters in the four different flow conditions in VEGF-A/C. We discovered that interstitial flow in VEGF-C generates discontinuous LEC junctions that may be similar to the button-like junctions with no lymphatic sprouting. However, interstitial flow or both luminal and interstitial flow stimulated lymphatic sprouting in VEGF-A, maintaining zipper-like LEC junctions. LEC junction thickness and cell contractility-dependent vessel diameters were not changed by those conditions. Conclusions In this study, we provide an engineered lymphatic vessel platform that can generate four different flow regimes and reveal the roles of interstitial flow and VEGF-A/C for lymphatic sprouting and discontinuous junction formation. Supplementary Information The online version contains supplementary material available at 10.1007/s12195-023-00780-0.
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Affiliation(s)
- Isabelle S. Ilan
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853 USA
- College of Human Ecology, Cornell University, Ithaca, NY 14853 USA
| | - Aria R. Yslas
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853 USA
| | - Yansong Peng
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853 USA
| | - Renhao Lu
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853 USA
| | - Esak Lee
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853 USA
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, College of Engineering, Cornell University, 302 Weill Hall, 237 Tower Road, Ithaca, NY 14853 USA
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6
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Wasson EM, He W, Ahlquist J, Hynes WF, Triplett MG, Hinckley A, Karelehto E, Gray-Sherr DR, Friedman CF, Robertson C, Shusteff M, Warren R, Coleman MA, Moya ML, Wheeler EK. A perfused multi-well bioreactor platform to assess tumor organoid response to a chemotherapeutic gradient. Front Bioeng Biotechnol 2023; 11:1193430. [PMID: 37324446 PMCID: PMC10264793 DOI: 10.3389/fbioe.2023.1193430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 05/17/2023] [Indexed: 06/17/2023] Open
Abstract
There is an urgent need to develop new therapies for colorectal cancer that has metastasized to the liver and, more fundamentally, to develop improved preclinical platforms of colorectal cancer liver metastases (CRCLM) to screen therapies for efficacy. To this end, we developed a multi-well perfusable bioreactor capable of monitoring CRCLM patient-derived organoid response to a chemotherapeutic gradient. CRCLM patient-derived organoids were cultured in the multi-well bioreactor for 7 days and the subsequently established gradient in 5-fluorouracil (5-FU) concentration resulted in a lower IC50 in the region near the perfusion channel versus the region far from the channel. We compared behaviour of organoids in this platform to two commonly used PDO culture models: organoids in media and organoids in a static (no perfusion) hydrogel. The bioreactor IC50 values were significantly higher than IC50 values for organoids cultured in media whereas only the IC50 for organoids far from the channel were significantly different than organoids cultured in the static hydrogel condition. Using finite element simulations, we showed that the total dose delivered, calculated using area under the curve (AUC) was similar between platforms, however normalized viability was lower for the organoid in media condition than in the static gel and bioreactor. Our results highlight the utility of our multi-well bioreactor for studying organoid response to chemical gradients and demonstrate that comparing drug response across these different platforms is nontrivial.
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Affiliation(s)
- Elisa Marie Wasson
- Materials Engineering Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Wei He
- Biosciences and Biotechnology Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Jesse Ahlquist
- Materials Engineering Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - William Fredrick Hynes
- Materials Engineering Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Michael Gregory Triplett
- Materials Engineering Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Aubree Hinckley
- Biosciences and Biotechnology Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Eveliina Karelehto
- Department of Surgery, University of California, San Francisco, San Francisco, CA, United States
- Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, United States
| | | | - Caleb Fisher Friedman
- Department of Computational Media, University of California Santa Cruz, Santa Cruz, CA, United States
| | - Claire Robertson
- Materials Engineering Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
- UC Davis Comprehensive Cancer Center, Davis, CA, United States
| | - Maxim Shusteff
- Materials Engineering Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Robert Warren
- Department of Surgery, University of California, San Francisco, San Francisco, CA, United States
- Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, United States
| | - Matthew A. Coleman
- Biosciences and Biotechnology Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Monica Lizet Moya
- Materials Engineering Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Elizabeth K. Wheeler
- Materials Engineering Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
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A Cataño J, Farthing S, Mascarenhas Z, Lake N, Yarlagadda PKDV, Li Z, Toh YC. A User-Centric 3D-Printed Modular Peristaltic Pump for Microfluidic Perfusion Applications. MICROMACHINES 2023; 14:mi14050930. [PMID: 37241553 DOI: 10.3390/mi14050930] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/17/2023] [Accepted: 04/23/2023] [Indexed: 05/28/2023]
Abstract
Microfluidic organ-on-a-chip (OoC) technology has enabled studies on dynamic physiological conditions as well as being deployed in drug testing applications. A microfluidic pump is an essential component to perform perfusion cell culture in OoC devices. However, it is challenging to have a single pump that can fulfil both the customization function needed to mimic a myriad of physiological flow rates and profiles found in vivo and multiplexing requirements (i.e., low cost, small footprint) for drug testing operations. The advent of 3D printing technology and open-source programmable electronic controllers presents an opportunity to democratize the fabrication of mini-peristaltic pumps suitable for microfluidic applications at a fraction of the cost of commercial microfluidic pumps. However, existing 3D-printed peristaltic pumps have mainly focused on demonstrating the feasibility of using 3D printing to fabricate the structural components of the pump and neglected user experience and customization capability. Here, we present a user-centric programmable 3D-printed mini-peristaltic pump with a compact design and low manufacturing cost (~USD 175) suitable for perfusion OoC culture applications. The pump consists of a user-friendly, wired electronic module that controls the operation of a peristaltic pump module. The peristaltic pump module comprises an air-sealed stepper motor connected to a 3D-printed peristaltic assembly, which can withstand the high-humidity environment of a cell culture incubator. We demonstrated that this pump allows users to either program the electronic module or use different-sized tubing to deliver a wide range of flow rates and flow profiles. The pump also has multiplexing capability as it can accommodate multiple tubing. The performance and user-friendliness of this low-cost, compact pump can be easily deployed for various OoC applications.
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Affiliation(s)
- Jorge A Cataño
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane 4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology, Kelvin Grove 4059, Australia
| | - Steven Farthing
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane 4000, Australia
| | - Zeus Mascarenhas
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane 4000, Australia
| | - Nathaniel Lake
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane 4000, Australia
| | - Prasad K D V Yarlagadda
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane 4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology, Kelvin Grove 4059, Australia
- School of Engineering, University of Southern Queensland, Springfield Central 4300, Australia
| | - Zhiyong Li
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane 4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology, Kelvin Grove 4059, Australia
| | - Yi-Chin Toh
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane 4000, Australia
- Centre for Biomedical Technologies, Queensland University of Technology, Kelvin Grove 4059, Australia
- Max Planck Queensland Centre (MPQC) for the Materials Science of Extracellular Matrices, Queensland University of Technology, Kelvin Grove 4059, Australia
- Centre for Microbiome Research, Queensland University of Technology, Woolloongabba 4102, Australia
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8
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Jo B, Morimoto Y, Takeuchi S. 3D-Printed Centrifugal Pump Driven by Magnetic Force in Applications for Microfluidics in Biological Analysis. Adv Healthc Mater 2022; 11:e2200593. [PMID: 35608243 DOI: 10.1002/adhm.202200593] [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: 03/17/2022] [Revised: 05/17/2022] [Indexed: 01/28/2023]
Abstract
In recent years, microfluidic systems have been extensively utilized for biological analysis. The integration of pumps in microfluidic systems requires precise control of liquids and effort-intensive set-ups for multiplexed experiments. In this study, a 3D-printed centrifugal pump driven by magnetic force is presented for microfluidics and biological analysis. The permanent magnets implemented in the centrifugal pump synchronized the rotation of the driving and operating parts. Precise control of the flow rate and a wide range and variety of flow profiles are achieved by controlling the rotational speed of the motor in the driving part. The compact size and contactless driving part allow simple set-ups within commercially available culture dishes and tubes. It is demonstrated that the fabricated 3D-printed centrifugal pump can induce laminar flow in a microfluidic device, perfusion culture of in vitro tissues, and alignment of cells under shear stress. This device has a high potential for applications in microfluidic devices and perfusion culture of cells.
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Affiliation(s)
- Byeongwook Jo
- Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Yuya Morimoto
- Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Shoji Takeuchi
- Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan.,International Research for Center for Neurointelligence (WPI-IRCN), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo, 113-0033, Japan
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9
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Cui Y, Xiao R, Zhou Y, Liu J, Wang Y, Yang X, Shen Z, Liang B, Shen K, Li Y, Xiong G, Ye Y, Ai X. Establishment of organoid models based on a nested array chip for fast and reproducible drug testing in colorectal cancer therapy. Biodes Manuf 2022. [DOI: 10.1007/s42242-022-00206-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Hoyle H, Stenger C, Przyborski S. Design considerations of benchtop fluid flow bioreactors for bio-engineered tissue equivalents in vitro. BIOMATERIALS AND BIOSYSTEMS 2022; 8:100063. [PMID: 36824373 PMCID: PMC9934498 DOI: 10.1016/j.bbiosy.2022.100063] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 07/08/2022] [Accepted: 08/30/2022] [Indexed: 10/14/2022] Open
Abstract
One of the major aims of bio-engineering tissue equivalents in vitro is to create physiologically relevant culture conditions to accurately recreate the cellular microenvironment. This often includes incorporation of factors such as the extracellular matrix, co-culture of multiple cell types and three-dimensional culture techniques. These advanced techniques can recapitulate some of the properties of tissue in vivo, however fluid flow is a key aspect that is often absent. Fluid flow can be introduced into cell and tissue culture using bioreactors, which are becoming increasingly common as we seek to produce increasingly accurate tissue models. Bespoke technology is continuously being developed to tailor systems for specific applications and to allow compatibility with a range of culture techniques. For effective perfusion of a tissue culture many parameters can be controlled, ranging from impacts of the fluid flow such as increased shear stress and mass transport, to potentially unwanted side effects such as temperature fluctuations. A thorough understanding of these properties and their implications on the culture model can aid with a more accurate interpretation of results. Improved and more complete characterisation of bioreactor properties will also lead to greater accuracy when reporting culture conditions in protocols, aiding experimental reproducibility, and allowing more precise comparison of results between different systems. In this review we provide an analysis of the different factors involved in the development of benchtop flow bioreactors and their potential biological impacts across a range of applications.
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Key Words
- 3D, three-dimensional
- ABS, acrylonitrile butadiene styrene
- ALI, air-liquid interface
- Bioreactors
- CFD, computational fluid dynamics
- Cell culture
- ECM, extracellular matrix
- FDM, fused deposition modelling
- Fluid flow
- PC, polycarbonate
- PET, polyethylene terephthalate
- PLA, polylactic acid
- PTFE, polytetrafluoroethylene
- SLA, stereolithography
- Tissue engineering
- UL, unstirred layer
- UV, ultraviolet light
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Affiliation(s)
- H.W. Hoyle
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK
| | - C.M.L. Stenger
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK
| | - S.A. Przyborski
- Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK,NETPark Incubator, Reprocell Europe Ltd., Thomas Wright Way, Sedgefield TS21 3FD, UK,Corresponding author at: Department of Biosciences, Durham University, South Road, Durham DH1 3LE, UK.
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11
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Shao Y, Fu J. Engineering multiscale structural orders for high-fidelity embryoids and organoids. Cell Stem Cell 2022; 29:722-743. [PMID: 35523138 PMCID: PMC9097334 DOI: 10.1016/j.stem.2022.04.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Embryoids and organoids hold great promise for human biology and medicine. Herein, we discuss conceptual and technological frameworks useful for developing high-fidelity embryoids and organoids that display tissue- and organ-level phenotypes and functions, which are critically needed for decoding developmental programs and improving translational applications. Through dissecting the layers of inputs controlling mammalian embryogenesis, we review recent progress in reconstructing multiscale structural orders in embryoids and organoids. Bioengineering tools useful for multiscale, multimodal structural engineering of tissue- and organ-level cellular organization and microenvironment are also discussed to present integrative, bioengineering-directed approaches to achieve next-generation, high-fidelity embryoids and organoids.
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Affiliation(s)
- Yue Shao
- Institute of Biomechanics and Medical Engineering, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China; State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China.
| | - Jianping Fu
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; Department of Cell & Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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12
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Patel SN, Mathews CE, Chandler R, Stabler CL. The Foundation for Engineering a Pancreatic Islet Niche. Front Endocrinol (Lausanne) 2022; 13:881525. [PMID: 35600597 PMCID: PMC9114707 DOI: 10.3389/fendo.2022.881525] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 03/30/2022] [Indexed: 12/01/2022] Open
Abstract
Progress in diabetes research is hindered, in part, by deficiencies in current experimental systems to accurately model human pathophysiology and/or predict clinical outcomes. Engineering human-centric platforms that more closely mimic in vivo physiology, however, requires thoughtful and informed design. Summarizing our contemporary understanding of the unique and critical features of the pancreatic islet can inform engineering design criteria. Furthermore, a broad understanding of conventional experimental practices and their current advantages and limitations ensures that new models address key gaps. Improving beyond traditional cell culture, emerging platforms are combining diabetes-relevant cells within three-dimensional niches containing dynamic matrices and controlled fluidic flow. While highly promising, islet-on-a-chip prototypes must evolve their utility, adaptability, and adoptability to ensure broad and reproducible use. Here we propose a roadmap for engineers to craft biorelevant and accessible diabetes models. Concurrently, we seek to inspire biologists to leverage such tools to ask complex and nuanced questions. The progenies of such diabetes models should ultimately enable investigators to translate ambitious research expeditions from benchtop to the clinic.
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Affiliation(s)
- Smit N. Patel
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, United States
| | - Clayton E. Mathews
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, United States
- Diabetes Institute, University of Florida, Gainesville, FL, United States
| | - Rachel Chandler
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, United States
| | - Cherie L. Stabler
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, United States
- Diabetes Institute, University of Florida, Gainesville, FL, United States
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13
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Organ-on-a-Chip: Design and Simulation of Various Microfluidic Channel Geometries for the Influence of Fluid Dynamic Parameters. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12083829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Shear stress, pressure, and flow rate are fluid dynamic parameters that can lead to changes in the morphology, proliferation, function, and survival of many cell types and have a determinant impact on tissue function and viability. Microfluidic devices are promising tools to investigate these parameters and fluid behaviour within different microchannel geometries. This study discusses and analyses different designed microfluidic channel geometries regarding the influence of fluid dynamic parameters on their microenvironment at specified fluidic parameters. The results demonstrate that in the circular microchamber, the velocity and shear stress profiles assume a parabolic shape with a maximum velocity occurring in the centre of the chamber and a minimum velocity at the walls. The longitudinal microchannel shows a uniform velocity and shear stress profile throughout the microchannel. Simulation studies for the two geometries with three parallel microchannels showed that in proximity to the micropillars, the velocity and shear stress profiles decreased. Moreover, the pressure is inversely proportional to the width and directly proportional to the flow rate within the microfluidic channels. The simulations showed that the velocity and wall shear stress indicated different values at different flow rates. It was also found that the width and height of the microfluidic channels could affect both velocity and shear stress profiles, contributing to the control of shear stress. The study has demonstrated strategies to predict and control the effects of these forces and the potential as an alternative to conventional cell culture as well as to recapitulate the cell- and organ-specific microenvironment.
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14
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Cook SR, Musgrove HB, Throckmorton AL, Pompano RR. Microscale impeller pump for recirculating flow in organs-on-chip and microreactors. LAB ON A CHIP 2022; 22:605-620. [PMID: 34988560 PMCID: PMC8892988 DOI: 10.1039/d1lc01081f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Fluid flow is an integral part of microfluidic and organ-on-chip technology, ideally providing biomimetic fluid, cell, and nutrient exchange as well as physiological or pathological shear stress. Currently, many of the pumps that actively perfuse fluid at biomimetic flow rates are incompatible with use inside cell culture incubators, require many tubing connections, or are too large to run many devices in a confined space. To address these issues, we developed a user-friendly impeller pump that uses a 3D-printed device and impeller to recirculate fluid and cells on-chip. Impeller rotation was driven by a rotating magnetic field generated by magnets mounted on a computer fan; this pump platform required no tubing connections and could accommodate up to 36 devices at once in a standard cell culture incubator. A computational model was used to predict shear stress, velocity, and changes in pressure throughout the device. The impeller pump generated biomimetic fluid velocities (50-6400 μm s-1) controllable by tuning channel and inlet dimensions and the rotational speed of the impeller, which were comparable to the order of magnitude of the velocities predicted by the computational model. Predicted shear stress was in the physiological range throughout the microchannel and over the majority of the impeller. The impeller pump successfully recirculated primary murine splenocytes for 1 h and Jurkat T cells for 24 h with no impact on cell viability, showing the impeller pump's feasibility for white blood cell recirculation on-chip. In the future, we envision that this pump will be integrated into single- or multi-tissue platforms to study communication between organs.
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Affiliation(s)
- Sophie R Cook
- Departments of Chemistry and Biomedical Engineering, University of Virginia, 248 McCormick Rd, Charlottesville, VA 22904, USA.
| | - Hannah B Musgrove
- Departments of Chemistry and Biomedical Engineering, University of Virginia, 248 McCormick Rd, Charlottesville, VA 22904, USA.
| | - Amy L Throckmorton
- BioCirc Research Laboratory, School of Biomedical Engineering, Science, and Health Systems, Philadelphia, Drexel University, Philadelphia, PA, USA
| | - Rebecca R Pompano
- Departments of Chemistry and Biomedical Engineering, University of Virginia, 248 McCormick Rd, Charlottesville, VA 22904, USA.
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15
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Braun NJ, Galaska RM, Jewett ME, Krupa KA. Implementation of a Dynamic Co-Culture Model Abated Silver Nanoparticle Interactions and Nanotoxicological Outcomes In Vitro. NANOMATERIALS 2021; 11:nano11071807. [PMID: 34361193 PMCID: PMC8308404 DOI: 10.3390/nano11071807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/06/2021] [Accepted: 07/08/2021] [Indexed: 12/21/2022]
Abstract
The incorporation of engineered nanoparticles (NPs) into everyday consumer goods, products, and applications has given rise to the field of nanotoxicology, which evaluates the safety of NPs within biological environments. The unique physicochemical properties of NPs have made this an insurmountable challenge, as their reactivity and variable behavior have given rise to discrepancies between standard cell-based in vitro and animal in vivo models. In this study, enhanced in vitro models were generated that retained the advantages of traditional cell cultures, but incorporated the modifications of (1) inclusion of an activated immune element and (2) the presence of physiologically-relevant dynamic flow. Following verification that the human alveolar epithelial and macrophage (A549/U937) co-culture could be successfully sustained under both static and dynamic conditions, these cultures, in addition to a standard A549 static model, were challenged with 10 nm citrate coated silver NPs (AgNPs). This work identified a reshaping of the AgNP-cellular interface and differential biological responses following exposure. The presence of dynamic flow modified cellular morphology and reduced AgNP deposition by approximately 20% over the static exposure environments. Cellular toxicity and stress endpoints, including reactive oxygen species, heat shock protein 70, and secretion of pro-inflammatory cytokines, were found to vary as a function of both cellular composition and flow conditions; with activated macrophages and fluid flow both mitigating the severity of AgNP-dependent bioeffects. This work highlights the possibility of enhanced in vitro systems to assess the safety of engineered NPs and demonstrates their effectiveness in elucidating novel NP-cellular interactions and toxicological profiles.
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Affiliation(s)
- Nicholas J. Braun
- Molecular Bioeffects Branch, Human Effectiveness Directorate, Wright Patterson Air Force Base, Dayton, OH 45433, USA;
| | - Rachel M. Galaska
- Department of Chemical and Materials Engineering, University of Dayton, Dayton, OH 45469-0256, USA; (R.M.G.); (M.E.J.)
| | - Maggie E. Jewett
- Department of Chemical and Materials Engineering, University of Dayton, Dayton, OH 45469-0256, USA; (R.M.G.); (M.E.J.)
| | - Kristen A. Krupa
- Department of Chemical and Materials Engineering, University of Dayton, Dayton, OH 45469-0256, USA; (R.M.G.); (M.E.J.)
- Correspondence: ; Tel.: +1-937-229-2627
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