1
|
Qiu J, Guo Q, Chu Y, Wang C, Xue H, Zhang Y, Liu H, Li G, Han L. Efficient EVs separation and detection by an alumina-nanochannel-array-membrane integrated microfluidic chip and an antibody barcode biochip. Anal Chim Acta 2024; 1304:342576. [PMID: 38637043 DOI: 10.1016/j.aca.2024.342576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Small endosome-derived lipid nanovesicles (30-200 nm) are actively secreted by living cells and serve as pivotal biomarkers for early cancer diagnosis. However, the study of extracellular vesicles (EVs) requires isolation and purification from various body fluids. Although traditional EVs isolation and detection technologies are mature, they usually require large amount of sample, consumes long-time, and have relatively low-throughput. How to efficiently isolate, purify and detect these structurally specific EVs from body fluids with high-throughput remains a great challenge in in vitro diagnostics and clinical research. RESULTS Herein, we suggest a nanosized microfluidic device for efficient and economical EVs filtration based on an alumina nanochannel array membrane. We evaluated the filtration device performance of alumina membranes with different diameters and found that an optimized chamber array with a hydrophilic-treated channel diameter of 90 nm could realize a filtration efficiency of up to 82% without any assistance from chemical or physical separation methods. Importantly, by integrating meticulously designed multichannel microfluidic biochips, EVs can be captured in-situ and monitored by antibody barcode biochip. The proposed filtration chip together with the high-throughput detection chip were capable of filtration of a few tens of μL samples and recognition of different phonotypes. The practical filtration and detection of EVs from clinical samples demonstrated the high performance of the device. SIGNIFICANT Overall, this work provides a cost-effective, highly efficient and automated EVs filtration chip and detection dual-function integrated chip platform, which can directly separate EVs from serum or cerebrospinal fluid with an efficiency of 82% and conduct in-situ detection. This small fluidic device can provide a powerful tool for highly efficient identifying and analyzing EVs, presenting great application potential in clinical detection.
Collapse
Affiliation(s)
- Jiaoyan Qiu
- Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong, 266237, China
| | - Qindong Guo
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong Key Laboratory of Brain Function Remodeling, Shandong University, Jinan, Shandong, 250012, China
| | - Yujin Chu
- Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong, 266237, China
| | - Chunhua Wang
- Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong, 266237, China
| | - Hao Xue
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong Key Laboratory of Brain Function Remodeling, Shandong University, Jinan, Shandong, 250012, China
| | - Yu Zhang
- Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong, 266237, China
| | - Hong Liu
- State Key Laboratory of Crystal Materials, Center of Bio & Micro/Nano Functional Materials, Shandong University, Jinan, Shandong, 250100, China.
| | - Gang Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong Key Laboratory of Brain Function Remodeling, Shandong University, Jinan, Shandong, 250012, China.
| | - Lin Han
- Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong, 266237, China.
| |
Collapse
|
2
|
Zhang F, Chen J, Zhao F, Liu M, Peng K, Pu Y, Sang Y, Wang S, Wang X. Microfabrication of engineered Lactococcus lactis biocarriers with genetically programmed immunorecognition probes for sensitive lateral flow immunoassay of antibiotic in milk and lake water. Biosens Bioelectron 2024; 252:116139. [PMID: 38412686 DOI: 10.1016/j.bios.2024.116139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/20/2024] [Accepted: 02/17/2024] [Indexed: 02/29/2024]
Abstract
Micro/nanomaterials display considerable potential for increasing the sensitivity of lateral flow immunoassay (LFIA) by acting as 3D carriers for both antibodies and signals. The key to achieving high detection sensitivity depends on the probe's orientation on the material surface and its multivalent biomolecular interactions with targets. Here, we engineer Lactococcus lactis as the bacterial microcarrier (BMC) for a multivalent immunorecognition probe that was genetically programmed to display multifunctional components including a phage-screened single-chain variable fragment (scFv), an enhanced green fluorescent protein (eGFP), and a C-terminal peptidoglycan-binding domain (AcmA) anchored on BMC through the cell wall peptidoglycan. The innovative design of this biocarrier system, which incorporates a lab-on-a-chip microfluidic device, allows for the rapid and non-destructive self-assembly of the multivalent scFv-eGFP-AcmA@BMC probe, in which the 3D structure of BMC with a large peptidoglycan surface area facilitates the precisely orientated attachment and immobilization of scFv-eGFP-AcmA. This leads to a remarkable fluorescence aggregation amplification effect in LFIA, outperforming a monovalent 2D scFv-eGFP-AcmA probe for florfenicol detection. By designing a portable sensing device, we achieved an exceptionally low detection limit of 0.28 pg/mL and 0.21 pg/mL for florfenicol in lake water and milk sample, respectively. The successful microfabrication of this biocarrier holds potential to inspire innovative biohybrid designs for environment and food safety biosensing applications.
Collapse
Affiliation(s)
- Fuyuan Zhang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Jiajie Chen
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Fangkun Zhao
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Minxuan Liu
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Kaige Peng
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Yuanhao Pu
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Yaxin Sang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Shuo Wang
- Medical College, Nankai University, Tianjin, 300500, China.
| | - Xianghong Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China.
| |
Collapse
|
3
|
Xu W, Atik AY, Beker L, Ceylan Koydemir H. Digital monitoring of the microchannel filling flow dynamics using a non-contactless smartphone-based nano-liter precision flow velocity meter. Biosens Bioelectron 2024; 252:116130. [PMID: 38417285 DOI: 10.1016/j.bios.2024.116130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/21/2024] [Accepted: 02/11/2024] [Indexed: 03/01/2024]
Abstract
Microfluidic systems find widespread applications in diagnostics, biological research, chemistry, and engineering studies. Among their many critical parameters, flow rate plays a pivotal role in maintaining the functionality of microfluidic systems, including droplet-based microfluidic devices and those used in cell culture. It also significantly influences microfluidic mixing processes. Although various flow rate measurement devices have been developed, the challenge remains in accurately measuring flow rates within customized channels. This paper presents the development of a 3D-printed smartphone-based flow velocity meter. The 3D-printed platform is angled at 30° to achieve transparent flow visualization, and it doesn't require any external optical components such as external lenses and filters. Two LED modules integrated into the platform create a uniform illumination environment for video capture, powered directly by the smartphone. The performance of our platform, combined with a customized video processing algorithm, was assessed in three different channel types: uniform straight channels, straight channels with varying widths, and vessel-like channel patterns to demonstrate its versatility. Our device effectively measured flow velocities from 5.43 mm/s to 24.47 mm/s, with video quality at 1080p resolution and 60 frames per second, for which the measurement range can be extended by adjusting the frame rate. This flow velocity meter can be a useful analytical tool to evaluate and enhance microfluidic channel designs of various lab-on-a-chip applications.
Collapse
Affiliation(s)
- Weiming Xu
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA; Center for Remote Health Technologies and Systems, Texas A&M Engineering Experiment Station, College Station, TX, 77843, USA
| | - Abdulkadir Yasin Atik
- Department of Mechanical Engineering, Koç University, Sariyer, Istanbul, 34450, Turkey
| | - Levent Beker
- Department of Mechanical Engineering, Koç University, Sariyer, Istanbul, 34450, Turkey
| | - Hatice Ceylan Koydemir
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA; Center for Remote Health Technologies and Systems, Texas A&M Engineering Experiment Station, College Station, TX, 77843, USA.
| |
Collapse
|
4
|
Xiang J, Qi J, Hu D, Wang C, Wang L, Wu Y, Chen J, Zhang Z, Wang X, Li B, Chen L. Molecularly imprinted metal-organic frameworks assisted cloth and paper hybrid microfluidic devices for visual detection of gonyautoxin. J Hazard Mater 2024; 469:133969. [PMID: 38460257 DOI: 10.1016/j.jhazmat.2024.133969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/27/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
Marine algal toxin contamination is a major threat to human health. Thus, it is crucial to develop rapid and on-site techniques for detecting algal toxins. In this work, we developed colorimetric cloth and paper hybrid microfluidic devices (μCPADs) for rapid detection of gonyautoxin (GTX1/4) combined with molecularly imprinted polymers. In addition, the metal-organic frameworks (MOFs) composites were applied for this approach by their unique features. Guanosine serves as a dummy template for surface imprinting and has certain structural advantages in recognizing gonyautoxin. MOF@MIPs composites were able to perform a catalytic color reaction using hydrogen peroxide-tetramethylbenzidine for the detection of GTX1/4. The cloth-based sensing substrates were assembled on origami μPADs to form user-friendly, miniaturized colorimetric μCPADs. Combined with a smartphone, the proposed colorimetric μCPADs successfully achieved a low limit of detection of 0.65 μg/L within the range of 1-200 μg/L for rapid visual detection of GTX1/4. Moreover, the GTX1/4 of real shellfish and seawater samples were satisfactorily detected to indicate the application prospect of the μCPADs. The proposed method shows good potential in the low-cost, stable establishment of assays for the rapid detection of environmental biotoxins.
Collapse
Affiliation(s)
- Jiawen Xiang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ji Qi
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Department of Chemistry, Chung-Ang University, Seoul 06974, South Korea
| | - Die Hu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Chao Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; Department of Applied Chemistry, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Liyan Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Yixuan Wu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Jiadong Chen
- Department of Chemistry, Chung-Ang University, Seoul 06974, South Korea
| | - Zhiyang Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyan Wang
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Bowei Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| |
Collapse
|
5
|
Sasaki R, Inagawa A, Xie X, Ohnishi N, Uehara N. Absorption-based colorimetric detection of nickel(II) ion by phase separation of thermoresponsive magnetic nanoparticles under microflow. ANAL SCI 2024; 40:791-798. [PMID: 38383818 DOI: 10.1007/s44211-024-00521-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/22/2024] [Indexed: 02/23/2024]
Abstract
Therma-Max™ LSA Streptavidin is a thermoresponsive magnetic nanoparticle (TMNP). It can be introduced conveniently to molecular recognition groups by avidin-biotin interaction. In this study, we demonstrated the detection of nickel(II) ions by the magnetic separation of TMNP induced by their phase transition under microflow. The NTA-tagged TMNP solution mixed with a Ni2+ sample was introduced into a microchannel with a well structure. Moreover, the sample was heated to induce the thermally induced aggregation of TMNP. The Ni-capturing TMNP were trapped in the well by magnetic fields. The supernatant was removed from the outlet, and a dimethylglyoxime (DMG) solution was introduced into the device for colorimetric detection in the well. Because DMG has a higher stability constant with Ni2+, sensitive colorimetric detection of Ni2+ can be achieved in devices where the sample volume, e.g., optical pathlength, is short. To demonstrate the feasibility of the proposed method, a recovery test was conducted using a commercially available cosmetic sample. Therein, complete collection was achieved.
Collapse
Affiliation(s)
- Ren Sasaki
- School of Engineering, Utsunomiya University, 7-1-2, Yoto, Utsunomiya, Tochigi, 321-8585, Japan
| | - Arinori Inagawa
- School of Engineering, Utsunomiya University, 7-1-2, Yoto, Utsunomiya, Tochigi, 321-8585, Japan.
| | - Xiaomao Xie
- Yokohama R&D Center, JNC Corporation, 5-1, Okawa, Kanazawa-ku, Yokohama, Kanagawa, 236-8605, Japan
| | - Noriyuki Ohnishi
- Corporate R&D Division, JNC Corporation, 5-1, Goi-kaigan, Ichihara, Chiba, 290-8551, Japan
| | - Nobuo Uehara
- School of Engineering, Utsunomiya University, 7-1-2, Yoto, Utsunomiya, Tochigi, 321-8585, Japan.
| |
Collapse
|
6
|
Sone K, Sakamaki Y, Hirose S, Inagaki M, Tachikawa M, Yoshino D, Funamoto K. Hypoxia suppresses glucose-induced increases in collective cell migration in vascular endothelial cell monolayers. Sci Rep 2024; 14:5164. [PMID: 38431674 PMCID: PMC10908842 DOI: 10.1038/s41598-024-55706-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/27/2024] [Indexed: 03/05/2024] Open
Abstract
Blood glucose levels fluctuate during daily life, and the oxygen concentration is low compared to the atmosphere. Vascular endothelial cells (ECs) maintain vascular homeostasis by sensing changes in glucose and oxygen concentrations, resulting in collective migration. However, the behaviors of ECs in response to high-glucose and hypoxic environments and the underlying mechanisms remain unclear. In this study, we investigated the collective migration of ECs simultaneously stimulated by changes in glucose and oxygen concentrations. Cell migration in EC monolayer formed inside the media channels of microfluidic devices was observed while varying the glucose and oxygen concentrations. The cell migration increased with increasing glucose concentration under normoxic condition but decreased under hypoxic condition, even in the presence of high glucose levels. In addition, inhibition of mitochondrial function reduced the cell migration regardless of glucose and oxygen concentrations. Thus, oxygen had a greater impact on cell migration than glucose, and aerobic energy production in mitochondria plays an important mechanistic role. These results provide new insights regarding vascular homeostasis relative to glucose and oxygen concentration changes.
Collapse
Affiliation(s)
- Kazuki Sone
- Graduate School of Biomedical Engineering, Tohoku University, 6-6-12 Aramaki-aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
- Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
| | - Yuka Sakamaki
- Graduate School of Pharmaceutical Sciences, Tokushima University, 1-78-1 Sho-machi, Tokushima, Tokushima, 770-8505, Japan
| | - Satomi Hirose
- Graduate School of Biomedical Engineering, Tohoku University, 6-6-12 Aramaki-aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
- Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
| | - Mai Inagaki
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Sho-machi, Tokushima, Tokushima, 770-8505, Japan
| | - Masanori Tachikawa
- Graduate School of Biomedical Sciences, Tokushima University, 1-78-1 Sho-machi, Tokushima, Tokushima, 770-8505, Japan
| | - Daisuke Yoshino
- Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo, 184-8588, Japan
| | - Kenichi Funamoto
- Graduate School of Biomedical Engineering, Tohoku University, 6-6-12 Aramaki-aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan.
- Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan.
- Graduate School of Engineering, Tohoku University, 6-6-1 Aramaki-aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8597, Japan.
| |
Collapse
|
7
|
Banti M, Van Zyl E, Kafetzis D. Sperm Preparation with Microfluidic Sperm Sorting Chip May Improve Intracytoplasmic Sperm Injection Outcomes Compared to Density Gradient Centrifugation. Reprod Sci 2024:10.1007/s43032-024-01483-1. [PMID: 38393626 DOI: 10.1007/s43032-024-01483-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 02/07/2024] [Indexed: 02/25/2024]
Abstract
Does sperm preparation using the FERTILE PLUS™ Sperm Sorting Chip improve fertilization rates, blastocyst formation, utilization, and euploidy rates in patients undergoing intracytoplasmic sperm injection (ICSI), compared with density gradient centrifugation (DGC)? A single-cohort, retrospective data review including data from 53 couples who underwent ICSI cycles within a 12-month period. For each couple, the two closest, consecutive cycles were identified, where one used the standard technique of sperm preparation (DGC) and the subsequent used FERTILE PLUS™, therefore, couples acted as their own controls. Paired samples t-test was used to compare means for the outcomes (fertilization, blastocyst formation, utilization, and euploidy rates). Binary logistic regression analysis assessed the relationship between female age, the presence of male factor infertility, and euploidy rates. Blastocyst, utilization, and euploidy rates were significantly higher for cycles using FERTILE PLUS™ compared to DGC (76% vs 56%, p = 0.002; 60% vs 41%, p = 0.005, and 40% vs 20%, p = 0.001, respectively). Although there was an increase in fertilization rates for cycles using FERTILE PLUS™, this was not significant (72% vs 68%, p = 0.449). The euploidy rates of females ≤ 35 years were significantly increased when the FERTILE PLUS™ sperm preparation method was used, compared to the older age group (OR 2.31, p = 0.007). No significant association was found between the presence or absence of male factor infertility and euploidy rates between the two cycles. This study provides tentative evidence that the FERTILE PLUS™ microfluidic sorting device for sperm selection can improve blastocyst formation, utilization, and euploidy rates following ICSI in comparison to the DGC method.
Collapse
Affiliation(s)
- Maria Banti
- Orchid Reproductive & Andrology Services, Dubai Healthcare City, Unit 4016, Block E, Al Razi Bldg #64, Dubai, UAE.
| | - Estee Van Zyl
- Orchid Reproductive & Andrology Services, Dubai Healthcare City, Unit 4016, Block E, Al Razi Bldg #64, Dubai, UAE
| | - Dimitrios Kafetzis
- Orchid Reproductive & Andrology Services, Dubai Healthcare City, Unit 4016, Block E, Al Razi Bldg #64, Dubai, UAE
| |
Collapse
|
8
|
Sakaibara M, Yamamoto H, Murota H, Monma N, Sato S, Hirano-Iwata A. Enhanced responses to inflammatory cytokine interleukin-6 in micropatterned networks of cultured cortical neurons. Biochem Biophys Res Commun 2024; 695:149379. [PMID: 38159413 DOI: 10.1016/j.bbrc.2023.149379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 12/09/2023] [Indexed: 01/03/2024]
Abstract
Cortical neurons in dissociated cultures are an indispensable model system for pharmacological research that provides insights into chemical responses in well-defined environments. However, cortical neurons plated on homogeneous substrates develop an unstructured network that exhibits excessively synchronized activity, which occasionally masks the consequences induced by external substances. Here, we show that hyperactivity and excessive synchrony in cultured cortical networks can be effectively suppressed by growing neurons in microfluidic devices. These devices feature a hierarchically modular design that resembles the in vivo network. We focused on interleukin-6, a pro-inflammatory cytokine, and assessed its acute and chronic effects. Fluorescence calcium imaging of spontaneous neural activity for up to 20 days of culture showed detectable modulation of collective activity events and neural correlation in micropatterned neurons, which was not apparent in neurons cultured on homogeneous substrates. Our results indicate that engineered neuronal networks provide a unique platform for detecting and understanding the fundamental effects of biochemical compounds on neuronal networks.
Collapse
Affiliation(s)
- Mamoru Sakaibara
- Research Institute of Electrical Communication, Tohoku University, Sendai, Japan; Graduate School of Engineering, Tohoku University, Sendai, Japan
| | - Hideaki Yamamoto
- Research Institute of Electrical Communication, Tohoku University, Sendai, Japan; Graduate School of Engineering, Tohoku University, Sendai, Japan.
| | - Hakuba Murota
- Research Institute of Electrical Communication, Tohoku University, Sendai, Japan; Graduate School of Engineering, Tohoku University, Sendai, Japan
| | - Nobuaki Monma
- Research Institute of Electrical Communication, Tohoku University, Sendai, Japan; Graduate School of Engineering, Tohoku University, Sendai, Japan
| | - Shigeo Sato
- Research Institute of Electrical Communication, Tohoku University, Sendai, Japan; Graduate School of Engineering, Tohoku University, Sendai, Japan
| | - Ayumi Hirano-Iwata
- Research Institute of Electrical Communication, Tohoku University, Sendai, Japan; Graduate School of Engineering, Tohoku University, Sendai, Japan; Advanced Institute for Materials Research, Tohoku University, Sendai, Japan; Graduate School of Biomedical Engineering, Tohoku University, Sendai, Japan
| |
Collapse
|
9
|
Javed A, Singh J. Process intensification for sustainable extraction of metals from e-waste: challenges and opportunities. Environ Sci Pollut Res Int 2024; 31:9886-9919. [PMID: 36995505 DOI: 10.1007/s11356-023-26433-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 03/09/2023] [Indexed: 06/19/2023]
Abstract
The electrical and electronic waste is expected to increase up to 74.7 million metric tons by 2030 due to the unparalleled replacement rate of electronic devices, depleting the conventional sources of valuable metals such as rare earth elements, platinum group metals, Co, Sb, Mo, Li, Ni, Cu, Ag, Sn, Au, and Cr. Most of the current techniques for recycling, recovering, and disposing of e-waste are inappropriate and therefore contaminate the land, air, and water due to the release of hazardous compounds into the environment. Hydrometallurgy and pyrometallurgy are two such conventional methods used extensively for metal recovery from waste electrical and electronic equipment (WEEE). However, environmental repercussions and higher energy requirements are the key drawbacks that prevent their widespread application. Thus, to ensure the environment and elemental sustainability, novel processes and technologies must be developed for e-waste management with enhanced recovery and reuse of the valued elements. Therefore, the goal of the current work is to examine the batch and continuous processes of metal extraction from e-waste. In addition to the conventional devices, microfluidic devices have been also analyzed for microflow metal extraction. In microfluidic devices, it has been observed that the large specific surface area and short diffusion distance of microfluidic devices are advantageous for the efficient extraction of metals. Additionally, cutting-edge technologies have been proposed to enhance the recovery, reusability, and recycling of e-waste. The current study may support decision-making by researchers in deciding the direction of future research and moving toward sustainable development.
Collapse
Affiliation(s)
- Aaliya Javed
- Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, 395007, India
| | - Jogender Singh
- Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, 395007, India.
| |
Collapse
|
10
|
Sosa-Hernández JE, Gutierrez EM, Ochoa Sierra JS, Aquines O, Robledo-Padilla F, Melchor-Martínez EM, Iqbal HM, Parra-Salvídar R. Laccase-based catalytic microreactor for BPA biotransformation. Heliyon 2024; 10:e24483. [PMID: 38298720 PMCID: PMC10827767 DOI: 10.1016/j.heliyon.2024.e24483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 11/16/2023] [Accepted: 01/09/2024] [Indexed: 02/02/2024] Open
Abstract
A laccase-based catalytic reactor was developed into a polydimethylsiloxane (PDMS) microfluidic device, allowing the degradation of different concentrations of the emergent pollutant, Bisphenol-A (BPA), at a rate similar to free enzyme. Among the immobilizing agents used, 1-Ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) was capable of immobilizing a more significant amount of the laccase enzyme in comparison to glutaraldehyde (GA), and the passive method (2989, 1537, and 1905 U/mL, respectively). The immobilized enzyme inside the microfluidic device could degrade 55 ppm of BPA at a reaction rate of 0.5309 U/mL*min with a contaminant initial concentration of 100 ppm at room temperature. In conclusion, the design of a microfluidic device and the immobilization of the laccase enzyme successfully allowed a high capacity of BPA degradation.
Collapse
Affiliation(s)
- Juan Eduardo Sosa-Hernández
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing Monterrey, 64849, Mexico
| | - Elsa M. Gutierrez
- Departmento de Ingeniería Biomédica, Universidad de Monterrey, Monterrey, Nuevo León, Mexico
| | | | - Osvaldo Aquines
- Department of Physics and Mathematics, Universidad de Monterrey, San Pedro Garza García, Mexico
| | - Felipe Robledo-Padilla
- Department of Physics and Mathematics, Universidad de Monterrey, San Pedro Garza García, Mexico
| | - Elda M. Melchor-Martínez
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing Monterrey, 64849, Mexico
| | - Hafiz M.N. Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing Monterrey, 64849, Mexico
| | - Roberto Parra-Salvídar
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing Monterrey, 64849, Mexico
| |
Collapse
|
11
|
Anggraini D, Zhang T, Liu X, Okano K, Tanaka Y, Inagaki N, Li M, Hosokawa Y, Yamada S, Yalikun Y. Guided axon outgrowth of neurons by molecular gradients generated from femtosecond laser-fabricated micro-holes. Talanta 2024; 267:125200. [PMID: 37738745 DOI: 10.1016/j.talanta.2023.125200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/04/2023] [Accepted: 09/11/2023] [Indexed: 09/24/2023]
Abstract
OBJECTIVE Transplantation of scaffold-embedded guided neurons has been reported to increase neuronal regeneration following brain injury. However, precise axonal integration between host and transplant neurons to form functional synapses remains a major problem. Thus, a high-precision tool to actuate neuronal axon outgrowth in real-time conditions is required to attain robust axon regeneration. This study aims to establish a microfluidic platform for precise and real-time axon outgrowth guidance. METHODS A microfluidic device with a 4 μm thick thin-glass sheet as the neuron culture substrate is fabricated. Surface of the glass sheet is chemically modified to facilitate neuron attachment. Femtosecond (fs) laser is used to engrave the glass sheet to achieve micro-holes, where netrin-1 is released for directing the movement of the neuronal axon. RESULTS Numerical simulation and experimental data demonstrate that netrin-1 gradient is formed after it passes through the micro-hole. The neuronal response results show the outgrowth rate of the axon is significantly increased by netrin-1 gradient. Furthermore, a majority of neuronal axons exhibit guided outgrowth characterized by positive turning angles of axon displacement in the direction of netrin-1 gradients. CONCLUSION Integrating fs laser and microfluidic device facilitates controlled and instantaneous axon outgrowth in a non-invasive manner. SIGNIFICANCE The developed real-time microfluidic platform shows potential in the application for on-site neuronal transplantation, which is significant for the treatment of a range of neurological disorders and injuries.
Collapse
Affiliation(s)
- Dian Anggraini
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma, 630-0192, Japan
| | - Tianlong Zhang
- College of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Xun Liu
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma, 630-0192, Japan
| | - Kazunori Okano
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma, 630-0192, Japan
| | - Yo Tanaka
- Center for Biosystems Dynamics Research (BDR), RIKEN, Osaka, 565-0871, Japan
| | - Naoyuki Inagaki
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma, 630-0192, Japan
| | - Ming Li
- School of Engineering, Macquarie University, Sydney, 2122, Australia
| | - Yoichiroh Hosokawa
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma, 630-0192, Japan
| | - Sohei Yamada
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma, 630-0192, Japan.
| | - Yaxiaer Yalikun
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma, 630-0192, Japan; Center for Biosystems Dynamics Research (BDR), RIKEN, Osaka, 565-0871, Japan.
| |
Collapse
|
12
|
Vermilya A, Clogston JD. Particle Size and Concentration Measurement Using the Spectradyne nCS1 Instrument. Methods Mol Biol 2024; 2789:45-52. [PMID: 38506990 DOI: 10.1007/978-1-0716-3786-9_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
This protocol describes the use of the Spectradyne nCS1 instrument to measure the particles per mL concentration and size of nanoparticles. The Spectradyne nCS1 is a particle-analyzing instrument that uses microfluidic resistive pulse sensing, rather than optical measurements, to determine the size and concentration of samples. The size and concentration of a sample are determined by measuring the changes in voltage as particles travel through a nano-constriction in the microfluidic cartridge. This method also has the advantage over optical techniques in that measurements are not dependent on the type of material being measured (e.g., refractive index of the sample itself is not needed for accurate analysis), and only microliters (typically 5 μL) of a sample are needed for analysis.
Collapse
Affiliation(s)
- Alison Vermilya
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Jeffrey D Clogston
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.
| |
Collapse
|
13
|
Pungjunun K, Praphairaksit N, Chailapakul O. A facile and automated microfluidic electrochemical platform for the in-field speciation analysis of inorganic arsenic. Talanta 2023; 265:124906. [PMID: 37451117 DOI: 10.1016/j.talanta.2023.124906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 06/28/2023] [Accepted: 07/01/2023] [Indexed: 07/18/2023]
Abstract
An automated microfluidic electrochemical platform was developed for the rapid in-field analysis of arsenic speciation. Herein, we integrated an electrochemical sensing and microfluidic channel for the simultaneous determination of As(III) and total inorganic As (total iAs) within a single device. The platform was fabricated by assembling a gold nanoparticle-modified screen-printed graphene electrode (AuNP/SPGE) on a hydrophilic polyethylene terephthalate (PET) sheet that was specially designed to enclose a microfluidic channel with dual flow channels for separate determination of the two species. While As(III) can be promptly detected with the AuNP/SPGE on one end, thioglycolic acid stored in glass fiber is employed on the other end to reduce As(V) before being electrochemically analyzed on the AuNP/SPGE as total iAs; the difference represents the amount of As(V). With a wireless potentiostat and a smartphone equipped with Bluetooth technology, the overall procedure can be fully automated and accomplished merely within 9 min. The linear ranges for the determination of As(III) and total iAs were found to be 50-1000 and 100-1500 ng/mL with detection limits of 3.7 and 17 ng/mL, respectively. The proposed method was validated and applied for the inorganic As speciation of various food samples with satisfactory results compared to those obtained with the standard HPLC-ICP‒MS protocol. This novel microfluidic electrochemical platform offers numerous advantages, notably for its simplicity, speed, low cost, and portability for on-site analysis, which conclusively makes it a highly promising analytical device for the speciation of inorganic arsenic.
Collapse
Affiliation(s)
- Kingkan Pungjunun
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok, 10330, Thailand
| | - Narong Praphairaksit
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok, 10330, Thailand.
| | - Orawon Chailapakul
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok, 10330, Thailand.
| |
Collapse
|
14
|
Jiang W, Liu J, Cui J, Su J, Xu W, Zhang F, Ding Y. Ferroptosis plays a crucial role in lung cell damage caused by ventilation stretch. Free Radic Biol Med 2023; 209:84-95. [PMID: 37827457 DOI: 10.1016/j.freeradbiomed.2023.10.381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
Mechanical ventilation is an essential respiratory support in acute respiratory distress syndrome and intensive care cases. However, it is possible to cause ventilator-induced lung damage (VILI). In this work, we used a microfluidic device to provide a mechanical ventilation with cyclic stretch (30% total area change rate and 15 cycles per min) and oxygen (air) flux applied by a controlled pressured airflow. Compared to static control, the ventilation stretch resulted in significant death of A549 cells accompanied by increased lipid peroxidation, mitochondrial reactive oxygen species (ROS) production, and ferrous ion accumulation, while by decreased protein expression of solute carrier family 7 member 11 (SLC7A11) and glutathione peroxidase 4 (GPX4) proteins, as well as ratio of reduced-to-oxidized glutathione. The resulted A549 cell death could be alleviated by two ferroptosis inhibitors, deferoxamine and ferrostatin-1. These similar phenomena also occurred in other three types of human lung cells, such as primary alveolar type II epithelial cells, primary alveolar microvascular endothelial cells, and bronchial epithelial cell line. From the A549 RNA sequence analysis, the gene ontology (GO) based on 85 ferroptosis-related genes (FRGs) indicated that several iron homeostasis-related biological processes and molecular functions were involved in the ventilation-stretch-induced cell death, while the gene set enrichment analysis (GSEA) based on 2901 differentially expressed genes (DEGs) showed that glutathione metabolism was significantly suppressed. Finally, solute carrier family 39 member 14 (SLC39A14), a transporter of uptake extracellular divalent metal ion, was selected to be knocked down to verify its role in the ventilation-stretch-induced death of A549. Our results suggest that ferroptosis may be an alternative pathway for VILI, but it needs to be confirmed by further animal experiments and clinical data.
Collapse
Affiliation(s)
- Wei Jiang
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jing Liu
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jingang Cui
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jilei Su
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei Xu
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fang Zhang
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongsheng Ding
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
15
|
Sun X, Chen W, Zhang B. A portable microfluidic device integrated with electrochemical sensing platform for detection of multiple binders in ancient wall paintings. Anal Chim Acta 2023; 1275:341562. [PMID: 37524458 DOI: 10.1016/j.aca.2023.341562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/21/2023] [Accepted: 06/24/2023] [Indexed: 08/02/2023]
Abstract
The aging of the proteinaceous binders will cause the cultural relics to suffer from diseases such as flaking, cracks, and even peeling. Identifying the type of binders in a timely manner is conducive to restore diseased cultural relics. High-throughput and portable detection system are of great significance for researching cultural relic materials on the archaeological site. Therefore, in this work, a portable electrochemical microfluidic device for the simultaneous detection of casein, ovalbumin, and peach gum binders was developed. The proposed electrochemical immunosensor technology integrated with microfluidic device achieve the goals of miniaturization, portability and reagent-saving. For casein, ovalbumin and peach gum, excellent performance was obtained in terms of their limits of detection (LOD) at 0.237, 0.507, and 0.403 ng mL-1 (S/N = 3), respectively. In addition, the microfluidic sensing platform exhibited acceptable anti-interference ability, stability, and storage capacity. In order to evaluate the practical application value, the proposed microfluidic sensing device was applied for detecting eight archaeological samples from different historic sites. This work demonstrates great potential for high-throughput, portable detection of cultural relic proteinaceous binder materials.
Collapse
Affiliation(s)
- Xiaolu Sun
- Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Weixiang Chen
- Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Bingjian Zhang
- Department of Cultural Heritage and Museology, Zhejiang University, Hangzhou, China.
| |
Collapse
|
16
|
Zhang Y, Lin Y, Hong X, Di C, Xin Y, Wang X, Qi S, Liu BF, Zhang Z, Du W. Demand-driven active droplet generation and sorting based on positive pressure-controlled fluid wall. Anal Bioanal Chem 2023; 415:5311-5322. [PMID: 37392212 DOI: 10.1007/s00216-023-04806-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/08/2023] [Accepted: 06/12/2023] [Indexed: 07/03/2023]
Abstract
Droplet microfluidics is a rapidly advancing area of microfluidic technology, which offers numerous advantages for cell analysis, such as isolation and accumulation of signals, by confining cells within droplets. However, controlling cell numbers in droplets is challenging due to the uncertainty of random encapsulation which result in many empty droplets. Therefore, more precise control techniques are needed to achieve efficient encapsulation of cells within droplets. Here, an innovative microfluidic droplet manipulation platform had been developed, which employed positive pressure as a stable and controllable driving force for manipulating fluid within chips. The air cylinder, electro-pneumatics proportional valve, and the microfluidic chip were connected through a capillary, which enabled the formation of a fluid wall by creating a difference in hydrodynamic resistance between two fluid streams at the channel junction. Lowering the pressure of the driving oil phase eliminates hydrodynamic resistance and breaks the fluid wall. Regulating the duration of the fluid wall breakage controls the volume of the introduced fluid. Several important droplet microfluidic manipulations were demonstrated on this microfluidic platform, such as sorting of cells/droplets, sorting of droplets co-encapsulated cells and hydrogels, and active generation of droplets encapsulated with cells in a responsive manner. The simple, on-demand microfluidic platform was featured with high stability, good controllability, and compatibility with other droplet microfluidic technologies.
Collapse
Affiliation(s)
- Yiwei Zhang
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yiwei Lin
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xianzhe Hong
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Chao Di
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yuelai Xin
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xinru Wang
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shuhong Qi
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Bi-Feng Liu
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhihong Zhang
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Wei Du
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics - Hubei Bioinformatics & Molecular Imaging Key Laboratory, Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
| |
Collapse
|
17
|
Mieville V, Griffioen AW, Benamran D, Nowak-Sliwinska P. Advanced in vitro models for renal cell carcinoma therapy design. Biochim Biophys Acta Rev Cancer 2023; 1878:188942. [PMID: 37343729 DOI: 10.1016/j.bbcan.2023.188942] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/23/2023]
Abstract
Renal cell carcinoma (RCC) and its principal subtype, clear cell RCC, are the most diagnosed kidney cancer. Despite substantial improvement over the last decades, current pharmacological intervention still fails to achieve long-term therapeutic success. RCC is characterized by a high intra- and inter-tumoral heterogeneity and is heavily influenced by the crosstalk of the cells composing the tumor microenvironment, such as cancer-associated fibroblasts, endothelial cells and immune cells. Moreover, multiple physicochemical properties such as pH, interstitial pressure or oxygenation may also play an important role. These elements are often poorly recapitulated in in vitro models used for drug development. This inadequate recapitulation of the tumor is partially responsible for the current lack of an effective and curative treatment. Therefore, there are needs for more complex in vitro or ex vivo drug screening models. In this review, we discuss the current state-of-the-art of RCC models and suggest strategies for their further development.
Collapse
Affiliation(s)
- Valentin Mieville
- School of Pharmaceutical Sciences, Faculty of Sciences, University of Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland; Translational Research Center in Oncohaematology, Geneva, Switzerland
| | - Arjan W Griffioen
- Angiogenesis Laboratory, Department of Medical Oncology, Amsterdam UMC, Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Daniel Benamran
- Division of Urology, Geneva University Hospitals, Geneva, Switzerland
| | - Patrycja Nowak-Sliwinska
- School of Pharmaceutical Sciences, Faculty of Sciences, University of Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland; Translational Research Center in Oncohaematology, Geneva, Switzerland.
| |
Collapse
|
18
|
Alves ADH, Nucci MP, Ennes do Valle NM, Missina JM, Mamani JB, Rego GNA, Dias OFM, Garrigós MM, de Oliveira FA, Gamarra LF. Current overview of induced pluripotent stem cell-based blood-brain barrier-on-a-chip. World J Stem Cells 2023; 15:632-653. [PMID: 37424947 PMCID: PMC10324508 DOI: 10.4252/wjsc.v15.i6.632] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/10/2023] [Accepted: 05/08/2023] [Indexed: 06/26/2023] Open
Abstract
BACKGROUND Induced pluripotent stem cells (iPSCs) show great ability to differentiate into any tissue, making them attractive candidates for pathophysiological investigations. The rise of organ-on-a-chip technology in the past century has introduced a novel way to make in vitro cell cultures that more closely resemble their in vivo environments, both structural and functionally. The literature still lacks consensus on the best conditions to mimic the blood-brain barrier (BBB) for drug screening and other personalized therapies. The development of models based on BBB-on-a-chip using iPSCs is promising and is a potential alternative to the use of animals in research.
AIM To analyze the literature for BBB models on-a-chip involving iPSCs, describe the microdevices, the BBB in vitro construction, and applications.
METHODS We searched for original articles indexed in PubMed and Scopus that used iPSCs to mimic the BBB and its microenvironment in microfluidic devices. Thirty articles were identified, wherein only 14 articles were finally selected according to the inclusion and exclusion criteria. Data compiled from the selected articles were organized into four topics: (1) Microfluidic devices design and fabrication; (2) characteristics of the iPSCs used in the BBB model and their differentiation conditions; (3) BBB-on-a-chip reconstruction process; and (4) applications of BBB microfluidic three-dimensional models using iPSCs.
RESULTS This study showed that BBB models with iPSCs in microdevices are quite novel in scientific research. Important technological advances in this area regarding the use of commercial BBB-on-a-chip were identified in the most recent articles by different research groups. Conventional polydimethylsiloxane was the most used material to fabricate in-house chips (57%), whereas few studies (14.3%) adopted polymethylmethacrylate. Half the models were constructed using a porous membrane made of diverse materials to separate the channels. iPSC sources were divergent among the studies, but the main line used was IMR90-C4 from human fetal lung fibroblast (41.2%). The cells were differentiated through diverse and complex processes either to endothelial or neural cells, wherein only one study promoted differentiation inside the chip. The construction process of the BBB-on-a-chip involved previous coating mostly with fibronectin/collagen IV (39.3%), followed by cell seeding in single cultures (36%) or co-cultures (64%) under controlled conditions, aimed at developing an in vitro BBB that mimics the human BBB for future applications.
CONCLUSION This review evidenced technological advances in the construction of BBB models using iPSCs. Nonetheless, a definitive BBB-on-a-chip has not yet been achieved, hindering the applicability of the models.
Collapse
Affiliation(s)
| | - Mariana Penteado Nucci
- Hospital Israelita Albert Einstein, São Paulo 05529-060, São Paulo, Brazil
- Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo 05403-010, São Paulo, Brazil
| | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Yokoi F, Deguchi S, Takayama K. Organ-on-a-chip models for elucidating the cellular biology of infectious diseases. Biochim Biophys Acta Mol Cell Res 2023:119504. [PMID: 37245539 DOI: 10.1016/j.bbamcr.2023.119504] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 05/18/2023] [Accepted: 05/20/2023] [Indexed: 05/30/2023]
Abstract
Infectious diseases are caused by the invasion of pathogens into a host. To explore the mechanisms of pathogen infections and cellular responses, human models that can accurately recapitulate human pathophysiology are needed. Organ-on-a-chip is a type of advanced in vitro model system that cultures cells in microfluidic devices to replicate physiologically relevant microenvironments such as 3D structures, shear stress, and mechanical stimulation. Recently, organ-on-a-chips have been widely adopted to examine the pathophysiology of infectious diseases in detail. Here, we will summarize recent advances in infectious disease research of visceral organs such as the lung, intestine, liver, and kidneys, using organ-on-a-chips.
Collapse
Affiliation(s)
- Fuki Yokoi
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto 606-8507, Japan; Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Sayaka Deguchi
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto 606-8507, Japan; Department of Medical Science, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Kazuo Takayama
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto 606-8507, Japan; AMED-CREST, Japan Agency for Medical Research and Development (AMED), Tokyo 100-0004, Japan.
| |
Collapse
|
20
|
Zhu L, Fu W, Zhu B, Feng Q, Ying X, Li S, Chen J, Xie X, Pan C, Liu J, Chen C, Chen X, Zhu D. An integrated microfluidic electrochemiluminescence device for point-of-care testing of acute myocardial infarction. Talanta 2023; 262:124626. [PMID: 37244239 DOI: 10.1016/j.talanta.2023.124626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 04/26/2023] [Accepted: 05/01/2023] [Indexed: 05/29/2023]
Abstract
Heart-type fatty acid binding protein (H-FABP) is an early biomarker for acute myocardial infarction. The concentration of H-FABP in circulation sharply increases during myocardial injury. Therefore, fast and accurate detection of H-FABP is of vital significance. In this study, we developed an electrochemiluminescence device integrated with microfluidic chip (designed as m-ECL device) for on-site detection of H-FABP. The m-ECL device is consisted of a microfluidic chip that enable easy liquid handling as well as an integrated electronic system for voltage supply and photon detection. A sandwich-type ECL immunoassay strategy was employed for H-FABP detection by using Ru (bpy)32+ loaded mesoporous silica nanoparticles as ECL probes. This device can directly detect H-FABP in human serum without any pre-treatment, with a wide linear range of 1-100 ng/mL and a low limit of detection of 0.72 ng/mL. The clinical usability of this device was evaluated using clinical serum samples from patients. The results obtained from m-ECL device are well matched with those obtained from ELISA assays. We believe this m-ECL device has extensive application prospects for point-of-care testing of acute myocardial infarction.
Collapse
Affiliation(s)
- Lihang Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine; Key Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University, Hangzhou, 310003, Zhejiang, China; Department of Biomedical Engineering, Key Laboratory of Biomedical Engineering of Ministry of Education of China, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, Zhejiang University, Hangzhou, 310027, Zhejiang, China
| | - Wenxuan Fu
- Institute of Analytical Chemistry, Department of Chemistry, Key Laboratory of Excited-State Materials of Zhejiang Province, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Boyu Zhu
- Institute of Analytical Chemistry, Department of Chemistry, Key Laboratory of Excited-State Materials of Zhejiang Province, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Qian Feng
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Xudong Ying
- Institute of Analytical Chemistry, Department of Chemistry, Key Laboratory of Excited-State Materials of Zhejiang Province, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Shuang Li
- Academy of Medical Engineering and Translational Medicine, Tianjin University, 300072, Tianjin, China
| | - Jing Chen
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Xiaoya Xie
- Department of Biomedical Engineering, Key Laboratory of Biomedical Engineering of Ministry of Education of China, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, Zhejiang University, Hangzhou, 310027, Zhejiang, China
| | - Chenying Pan
- Department of Biomedical Engineering, Key Laboratory of Biomedical Engineering of Ministry of Education of China, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, Zhejiang University, Hangzhou, 310027, Zhejiang, China
| | - Jun Liu
- Department of Biomedical Engineering, Key Laboratory of Biomedical Engineering of Ministry of Education of China, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, Zhejiang University, Hangzhou, 310027, Zhejiang, China
| | - Chao Chen
- GuoZhen Health Technology Co., Ltd, 100142, Beijing, China
| | - Xing Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine; Key Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University, Hangzhou, 310003, Zhejiang, China; Department of Biomedical Engineering, Key Laboratory of Biomedical Engineering of Ministry of Education of China, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, Zhejiang University, Hangzhou, 310027, Zhejiang, China.
| | - Danhua Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine; Key Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University, Hangzhou, 310003, Zhejiang, China.
| |
Collapse
|
21
|
Ren J, Fan L. A reliable elasticity sensing method for analysis of cell entosis using microfluidic cytometer. Biomed Eng Lett 2023; 13:175-183. [PMID: 37124106 PMCID: PMC10130291 DOI: 10.1007/s13534-023-00264-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/15/2023] [Accepted: 01/22/2023] [Indexed: 02/05/2023] Open
Abstract
Cell entosis is a novel cell death process starting from cell-in-cell invasion. In general, cancer cells own higher incidence rate of cell entosis comparing to non-cancerous cells. Studies arguing whether cell entosis is a tumor suppressing process or a tumor accelerating process can deepen our understanding of tumor development. Cell elasticity is recognized as one of tumor malignant biomarkers. There have been some researchers studying cell elasticity in cell entosis. However, existing cell elasticity sensing technique (i.e. micropipette aspiration) can hardly be reliable neither high-throughput. In this work, we introduce an elasticity sensing method for quantifying both cell elasticity in cell-in-cell structures and single floating cells using a microfluidic cytometer. We not only argue our cell elasticity sensing method is reliable for already occurred entosis but also apply such method on predicting the "outer" cells in entosis of different cell types. The elasticity sensing method proposed in this manuscript is able to provide an effective and reliable way to further study deeper mechanism in cell entosis. Supplementary Information The online version contains supplementary material available at 10.1007/s13534-023-00264-0.
Collapse
Affiliation(s)
- Jifeng Ren
- School of Biomedical Engineering, Capital Medical University, Beijing, 100069 China
- Beijing Key Laboratory of Fundamental Research on Biomechanics in Clinical Application, Capital Medical University, Beijing, 100069 China
| | - Lei Fan
- Centre for Robotics and Automation, Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057 China
| |
Collapse
|
22
|
Wan HY, Chen JCH, Xiao Q, Wong CW, Yang B, Cao B, Tuan RS, Nilsson SK, Ho YP, Raghunath M, Kamm RD, Blocki A. Stabilization and improved functionality of three-dimensional perfusable microvascular networks in microfluidic devices under macromolecular crowding. Biomater Res 2023; 27:32. [PMID: 37076899 PMCID: PMC10116810 DOI: 10.1186/s40824-023-00375-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 04/04/2023] [Indexed: 04/21/2023] Open
Abstract
BACKGROUND There is great interest to engineer in vitro models that allow the study of complex biological processes of the microvasculature with high spatiotemporal resolution. Microfluidic systems are currently used to engineer microvasculature in vitro, which consists of perfusable microvascular networks (MVNs). These are formed through spontaneous vasculogenesis and exhibit the closest resemblance to physiological microvasculature. Unfortunately, under standard culture conditions and in the absence of co-culture with auxiliary cells as well as protease inhibitors, pure MVNs suffer from a short-lived stability. METHODS Herein, we introduce a strategy for stabilization of MVNs through macromolecular crowding (MMC) based on a previously established mixture of Ficoll macromolecules. The biophysical principle of MMC is based on macromolecules occupying space, thus increasing the effective concentration of other components and thereby accelerating various biological processes, such as extracellular matrix deposition. We thus hypothesized that MMC will promote the accumulation of vascular ECM (basement membrane) components and lead to a stabilization of MVN with improved functionality. RESULTS MMC promoted the enrichment of cellular junctions and basement membrane components, while reducing cellular contractility. The resulting advantageous balance of adhesive forces over cellular tension resulted in a significant stabilization of MVNs over time, as well as improved vascular barrier function, closely resembling that of in vivo microvasculature. CONCLUSION Application of MMC to MVNs in microfluidic devices provides a reliable, flexible and versatile approach to stabilize engineered microvessels under simulated physiological conditions.
Collapse
Affiliation(s)
- Ho-Ying Wan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jack Chun Hin Chen
- Department of Biomedical Engineering, Faculty of Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Qinru Xiao
- Department of Biomedical Engineering, Faculty of Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Christy Wingtung Wong
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Boguang Yang
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Benjamin Cao
- Biomedical Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO), Melbourne, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, Australia
| | - Rocky S Tuan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Center for Neuromusculoskeletal Restorative Medicine (CNRM), Hong Kong Science Park, Shatin, New Territories, Hong Kong SAR, China
| | - Susan K Nilsson
- Biomedical Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO), Melbourne, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, Australia
| | - Yi-Ping Ho
- Department of Biomedical Engineering, Faculty of Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Michael Raghunath
- Institute for Chemistry and Biotechnology, Zurich University of Applied Sciences, Wädenswil, Switzerland
| | - Roger D Kamm
- Department of Biology and Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Anna Blocki
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Center for Neuromusculoskeletal Restorative Medicine (CNRM), Hong Kong Science Park, Shatin, New Territories, Hong Kong SAR, China.
| |
Collapse
|
23
|
Yang J, Phan VM, Heo CK, Nguyen HV, Lim WH, Cho EW, Poo H, Seo TS. Development of nucleocapsid-specific monoclonal antibodies for SARS-CoV-2 and their ELISA diagnostics on an automatic microfluidic device. Sens Actuators B Chem 2023; 380:133331. [PMID: 36644652 PMCID: PMC9826540 DOI: 10.1016/j.snb.2023.133331] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has threatened public health globally, and the emergence of viral variants has exacerbated an already precarious situation. To prevent further spread of the virus and determine government action required for virus control, accurate and rapid immunoassays for SARS-CoV-2 diagnosis are urgently needed. In this study, we generated monoclonal antibodies (mAbs) against the SARS-CoV-2 nucleocapsid protein (NP), compared their reactivity using an enzyme-linked immunosorbent assay (ELISA), and selected four mAbs designated 1G6, 3E10, 3F10, and 5B6 which have higher reactivity to NP and viral lysates of SARS-CoV-2 than other mAbs. Using an epitope mapping assay, we identified that 1G6 detected the C-terminal domain of SARS-CoV-2 NP (residues 248-364), while 3E10 and 3F10 bound to the N-terminal domain (residues 47-174) and 3F10 detected the N-arm region (residues 1-46) of SARS-CoV-2 NP. Based on the epitope study and sandwich ELISA, we selected the 1G6 and 3E10 Abs as an optimal Ab pair and applied them for a microfluidics-based point-of-care (POC) ELISA assay to detect the NPs of SARS-CoV-2 and its variants. The integrated and automatic microfluidic system could operate the serial injection of the sample, the washing solution, the HRP-conjugate antibody, and the TMB substrate solution simply by controlling air purge via a single syringe. The proposed Ab pair-equipped microsystem effectively detected the NPs of SARS-CoV-2 variants as well as in clinical samples. Collectively, our proposed platform provides an advanced protein-based diagnostic tool for detecting SARS-CoV-2.
Collapse
Affiliation(s)
- Jihyun Yang
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea
| | - Vu Minh Phan
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, Yongin 17104, South Korea
| | - Chang-Kyu Heo
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea
| | - Hau Van Nguyen
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, Yongin 17104, South Korea
| | - Won-Hee Lim
- Rare Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea
| | - Eun-Wie Cho
- Rare Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea
| | - Haryoung Poo
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea
| | - Tae Seok Seo
- Department of Chemical Engineering (BK21 FOUR Integrated Engineering Program), Kyung Hee University, Yongin 17104, South Korea
| |
Collapse
|
24
|
Esparza A, Jimenez N, Joddar B, Natividad-Diaz S. Development of in vitro cardiovascular tissue models within capillary circuit microfluidic devices fabricated with 3D Stereolithography printing. Res Sq 2023:rs.3.rs-2667200. [PMID: 36993455 PMCID: PMC10055652 DOI: 10.21203/rs.3.rs-2667200/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Human cardiovascular tissue and diseases are difficult to study for novel drug discovery and fundamental cellular/molecular processes due to limited availability of physiologically-relevant models in vitro.[1-3] Animal models may resemble human heart structure, however there are significant differences from human cardiovascular physiology including biochemical signaling, and gene expression.[4-6] In vitro microfluidic tissue models provide a less expensive, more controlled, and reproducible platform for better quantification of isolated cellular processes in response to biochemical or biophysical stimulus.[6-12] The capillary driven-flow microfluidic device in this study was manufactured with a 3D stereolithography (SLA) printed mold and is a closed circuit system operating on principles of capillary action allowing continuous fluid movement without external power supply. Human umbilical vein endothelial cells (HUVECs) and human cardiomyocytes (AC16) were encapsulated into a fibrin hydrogel to form vascular (VTM) and cardiac (CTM) tissue models respectively. To determine response to biophysical stimulus, the 3D cardiovascular tissue was directly loaded into the device tissue culture chambers that either had no microposts (DWoP) or microposts (DWPG) for 1, 3 and 5 days. The tissues were analyzed with fluorescent microscopy for morphological differences, average tube length, and cell orientation between tissues cultured in both conditions. In DWPG VTMs displayed capillary-like tube formation with visible cell alignment and orientation, while AC16s continued to elongate around microposts by day 5. VTM and CTM models in devices with posts (DWPG) displayed cell alignment and orientation after 5 days, indicated the microposts induced biophysical cues to guide cell structure and specific organization.
Collapse
|
25
|
Saffari H, Hajiaghalou S, Hajari MA, Gourabi H, Fathi D, Fathi R. Design and fabrication of aspiration microfluidic channel for oocyte characterization. Talanta 2023; 254:124098. [PMID: 36462279 DOI: 10.1016/j.talanta.2022.124098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/05/2022] [Accepted: 11/10/2022] [Indexed: 11/25/2022]
Abstract
The development potential for oocytes can be predicted by their mechanical properties. One important parameter that is measured to calculate oocyte hardness is Cortical Tension (CT). In this work, for the first time, we present the design, simulation, and fabrication of a new aspiration microfluidic chip to measure the CT of oocytes and then predict their maturation capability in the Germinal Vesicle (GV) stage. This high-performance technique facilitates oocyte characterization and is a promising alternative to traditional methods such as MicroPipette Aspiration (MPA). The proposed technique involves considerably simpler operation, less specialized equipment, and less technical skill than MPA. The proposed microfluidic channel also promises faster measurements. It is shown that in order to completely continue the growth process of oocytes in GV stage, the CT should be in a certain range: very low or very high CTs lead to unsuccessful growth. The obtained results show that 79% of oocytes with the CT between 1.5 and 3 nN/μm reach the Metaphase II (MII) stage, whereas the growth for 78% of oocytes with the CT less than 1.5 nN/μm or higher than 3 nN/μm stops at the GV or Germinal Vesicle Break Down (GVBD) stages. Another property, kvis, that points to the viscous behavior of oocytes is also measured. It is seen that 80% of GV oocytes with the kvis values between 15 and 30 k Pa s/m reach the MII stage.
Collapse
Affiliation(s)
- H Saffari
- Department of Electrical and Computer Engineering, Tarbiat Modares University (TMU), Tehran, Iran
| | - S Hajiaghalou
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - M A Hajari
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - H Gourabi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - D Fathi
- Department of Electrical and Computer Engineering, Tarbiat Modares University (TMU), Tehran, Iran.
| | - R Fathi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
| |
Collapse
|
26
|
Naeemi S, Sabetkish S, Kiani MJ, Dehghan A, Kajbafzadeh AM. Ex-Vivo and In-Vivo Expansion of Spermatogonial Stem Cells Using Cell-Seeded Microfluidic Testis Scaffolds and Animal Model. Cell Tissue Bank 2023; 24:153-166. [PMID: 35792989 DOI: 10.1007/s10561-022-10024-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 06/23/2022] [Indexed: 11/24/2022]
Abstract
AIMS This study was designed to provide both ex-vivo and in-vivo methods for the extraction and expansion of spermatogonial stem cells (SSCs). METHODS For in-vivo experiments, azoospermic mouse model was performed with Busulfan. Isolation, culture, and characterization of neonate mouse SSC were also achieved. We performed an in-vivo injection of labeled SSCs to the testes with azoospermia. In ex-vivo experiments, extracted SSCs were seeded on the fabricated scaffold consisting of hyaluronic acid (HA) and decellularized testis tissues (DTT). Immunofluorescence staining with PLZF, TP1, and Tekt 1 was performed for SSCs differentiation and proliferation. RESULTS Several studies demonstrated efficient spermatogenic arrest in seminiferous tubules and proved the absence of spermatogenesis. Transplanted SSCs moved and settled in the basement covering the seminiferous tubules. Most of the cells were positive for Dil, after 4 weeks. An epithelium containing spermatogonia-like cells with Sertoli-like, and Leydig cells were evident in the seminiferous tubules of biopsies, and the IHC staining was significantly positive, 4 weeks after injection of SSCs. The results of the ex-vivo experiments showed positive staining for all markers, which was significantly enhanced in scaffolds of ex-vivo experiments compared with in-vitro seeded scaffolds. CONCLUSION Ex-vivo SSC differentiation and proliferation using cell-seeded microfluidic testis scaffolds maybe effective for treatment of the azoospermia.
Collapse
Affiliation(s)
- Sahar Naeemi
- Pediatric Urology and Regenerative Medicine Research Center, Section of Tissue Engineering and Stem Cells Therapy, Children's Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shabnam Sabetkish
- Pediatric Urology and Regenerative Medicine Research Center, Section of Tissue Engineering and Stem Cells Therapy, Children's Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Javad Kiani
- School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Amin Dehghan
- School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Abdol-Mohammad Kajbafzadeh
- Pediatric Urology and Regenerative Medicine Research Center, Section of Tissue Engineering and Stem Cells Therapy, Children's Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
27
|
Johnson A, Reimer S, Childres R, Cupp G, Kohs TCL, McCarty OJT, Kang Y(A. The Applications and Challenges of the Development of In Vitro Tumor Microenvironment Chips. Cell Mol Bioeng 2023; 16:3-21. [PMID: 36660587 PMCID: PMC9842840 DOI: 10.1007/s12195-022-00755-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 12/07/2022] [Indexed: 12/27/2022] Open
Abstract
The tumor microenvironment (TME) plays a critical, yet mechanistically elusive role in tumor development and progression, as well as drug resistance. To better understand the pathophysiology of the complex TME, a reductionist approach has been employed to create in vitro microfluidic models called "tumor chips". Herein, we review the fabrication processes, applications, and limitations of the tumor chips currently under development for use in cancer research. Tumor chips afford capabilities for real-time observation, precise control of microenvironment factors (e.g. stromal and cellular components), and application of physiologically relevant fluid shear stresses and perturbations. Applications for tumor chips include drug screening and toxicity testing, assessment of drug delivery modalities, and studies of transport and interactions of immune cells and circulating tumor cells with primary tumor sites. The utility of tumor chips is currently limited by the ability to recapitulate the nuances of tumor physiology, including extracellular matrix composition and stiffness, heterogeneity of cellular components, hypoxic gradients, and inclusion of blood cells and the coagulome in the blood microenvironment. Overcoming these challenges and improving the physiological relevance of in vitro tumor models could provide powerful testing platforms in cancer research and decrease the need for animal and clinical studies.
Collapse
Affiliation(s)
- Annika Johnson
- Department of Mechanical, Civil, and Biomedical Engineering, George Fox University, 414 N. Meridian Street, #6088, Newberg, OR 97132 USA
| | - Samuel Reimer
- Department of Mechanical, Civil, and Biomedical Engineering, George Fox University, 414 N. Meridian Street, #6088, Newberg, OR 97132 USA
| | - Ryan Childres
- Department of Mechanical, Civil, and Biomedical Engineering, George Fox University, 414 N. Meridian Street, #6088, Newberg, OR 97132 USA
| | - Grace Cupp
- Department of Mechanical, Civil, and Biomedical Engineering, George Fox University, 414 N. Meridian Street, #6088, Newberg, OR 97132 USA
| | - Tia C. L. Kohs
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239 USA
| | - Owen J. T. McCarty
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239 USA
- Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201 USA
| | - Youngbok (Abraham) Kang
- Department of Mechanical, Civil, and Biomedical Engineering, George Fox University, 414 N. Meridian Street, #6088, Newberg, OR 97132 USA
| |
Collapse
|
28
|
Han S, Bang S, Kim HN, Choi N, Kim SH. Modulating and monitoring the functionality of corticostriatal circuits using an electrostimulable microfluidic device. Mol Brain 2023; 16:13. [PMID: 36670465 PMCID: PMC9863144 DOI: 10.1186/s13041-023-01007-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/14/2023] [Indexed: 01/22/2023] Open
Abstract
The central nervous system is organized into different neural circuits, each with particular functions and properties. Studying neural circuits is essential to understanding brain function and neuronal diseases. Microfluidic systems are widely used for reconstructing and studying neural circuits but still need improvement to allow modulation and monitoring of the physiological properties of circuits. In this study, we constructed an improved microfluidic device that supports the electrical modulation of neural circuits and proper reassembly. We demonstrated that our microfluidic device provides a platform for electrically modulating and monitoring the physiological function of neural circuits with genetic indicators for synaptic functionality in corticostriatal (CStr) circuits. In particular, our microfluidic device measures activity-driven Ca2+ dynamics using Ca2+ indicators (synaptophysin-GCaMP6f and Fluo5F-AM), as well as activity-driven synaptic transmission and retrieval using vGlut-pHluorin. Overall, our findings indicate that the improved microfluidic platform described here is an invaluable tool for studying the physiological properties of specific neural circuits.
Collapse
Affiliation(s)
- Sukmin Han
- grid.289247.20000 0001 2171 7818Department of Neuroscience, Graduate School, Kyung Hee University, Seoul, 02447 Republic of Korea
| | - Seokyoung Bang
- grid.35541.360000000121053345Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792 Republic of Korea
| | - Hong Nam Kim
- grid.35541.360000000121053345Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792 Republic of Korea
| | - Nakwon Choi
- grid.35541.360000000121053345Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, 02792 Republic of Korea
| | - Sung Hyun Kim
- grid.289247.20000 0001 2171 7818Department of Neuroscience, Graduate School, Kyung Hee University, Seoul, 02447 Republic of Korea ,grid.289247.20000 0001 2171 7818Department of Physiology, School of Medicine, Kyung Hee University, Seoul, 02447 Republic of Korea ,grid.289247.20000 0001 2171 7818Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Kyung Hee University, Seoul, 02447 South Korea
| |
Collapse
|
29
|
Jin X, Kim YT, Jo K. DNA Visualization Using Fluorescent Proteins. Methods Mol Biol 2023; 2564:223-246. [PMID: 36107345 DOI: 10.1007/978-1-0716-2667-2_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
DNA binding fluorescent proteins are a powerful tool for single-molecule visualization. In this chapter, we discuss a protocol for the synthesis of DNA binding fluorescent proteins and visualization of single DNA molecules. This chapter includes stepwise methods for molecular cloning, reversible staining, two-color staining, sequence-specific staining, and microscopic visualization of single DNA molecules in a microfluidic device. This content will be useful for DNA characterization using DNA binding fluorescent proteins and its visualization at the single-molecule level.
Collapse
Affiliation(s)
- Xuelin Jin
- College of Agriculture, Yanbian University, Yanji, Jilin Province, China.
| | - Y Tehee Kim
- Department of Chemistry and Program of Integrated Biotechnology, Sogang University, Seoul, Korea
| | - Kyubong Jo
- Department of Chemistry and Program of Integrated Biotechnology, Sogang University, Seoul, Korea.
| |
Collapse
|
30
|
Sugiura S, Shin K, Kanamori T. Perfusion culture of endothelial cells under shear stress on microporous membrane in a pressure-driven microphysiological system. J Biosci Bioeng 2023; 135:79-85. [PMID: 36253250 DOI: 10.1016/j.jbiosc.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 09/01/2022] [Accepted: 09/14/2022] [Indexed: 11/06/2022]
Abstract
This paper reports perfusion culture of human umbilical vein endothelial cells (HUVECs) on a microporous membrane in a pressure-driven microphysiological system (PD-MPS), which we developed previously as a multi-throughput perfusion culture platform. We designed fluidic culture unit with microporous membrane to culture HUVECs under fluidic shear stress and constructed a perfusion culture model in the PD-MPS platform. Four fluidic culture units were arranged in the microplate-sized device, which enables four-throughput assay for characterization of HUVECs under flow. Medium flow was generated above and below the membrane by sequential pneumatic pressure to apply physiological shear stress to HUVECs. HUVECs exhibited aligned morphology to the direction of the flow with shear stress of 11.5-17.7 dyn/cm2 under the flow condition, while they randomly aligned under static culture condition in a 6 well plate. We also observed 3.3- and 5.0-fold increase in the expression levels of the thrombomodulin and endothelial nitric oxide synthase mRNAs, respectively, under the flow condition in the PD-MPS compared to the static culture in 6 well plate. We also observed actin filament aligned to the direction of flow in HUVECs cultured under the flow condition.
Collapse
|
31
|
Deliorman M, Glia A, Qasaimeh MA. Affinity-Based Microfluidics Combined with Atomic Force Microscopy for Isolation and Nanomechanical Characterization of Circulating Tumor Cells. Methods Mol Biol 2023; 2679:41-66. [PMID: 37300608 DOI: 10.1007/978-1-0716-3271-0_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this chapter, we present the materials and methods required to isolate and characterize circulating tumor cells (CTCs) from blood samples of cancer patients based on our newly developed microfluidic technologies. In particular, the devices presented herein are designed to be compatible with at\omic force microscopy (AFM) for post-capture nanomechanical investigation of CTCs. Microfluidics is well-established as a technology for isolating CTCs from the whole blood of cancer patients, and AFM is a gold standard for quantitative biophysical analysis of cells. However, CTCs are very scarce in nature, and those captured using standard closed-channel microfluidic chips are typically inaccessible for AFM procedures. As a result, their nanomechanical properties largely remain unexplored. Thus, given limitations associated with current microfluidic designs, significant efforts are put toward bringing innovative designs for real time characterization of CTCs. In light of this constant endeavor, the scope of this chapter is to compile our recent efforts on two microfluidic technologies, namely, the AFM-Chip and the HB-MFP, which proved to be efficient in isolating CTCs through antibody-antigen interactions, and their subsequent characterization using AFM.
Collapse
Affiliation(s)
| | - Ayoub Glia
- Division of Engineering, New York University Abu Dhabi (NYUAD), Abu Dhabi, UAE
| | - Mohammad A Qasaimeh
- Division of Engineering, New York University Abu Dhabi (NYUAD), Abu Dhabi, UAE.
- Tandon School of Engineering, New York University, Brooklyn, NY, USA.
| |
Collapse
|
32
|
Nashimoto Y, Mukomoto R, Imaizumi T, Terai T, Shishido S, Ino K, Yokokawa R, Miura T, Onuma K, Inoue M, Shiku H. Electrochemical sensing of oxygen metabolism for a three-dimensional cultured model with biomimetic vascular flow. Biosens Bioelectron 2023; 219:114808. [PMID: 36327566 DOI: 10.1016/j.bios.2022.114808] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/06/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022]
Abstract
Microphysiological systems (MPSs) with three-dimensional (3D) cultured models have attracted considerable interest because of their potential to mimic human health and disease conditions. Recent MPSs have shown significant advancements in engineering perfusable vascular networks integrated with 3D culture models, realizing a more physiological environment in vitro; however, a sensing system that can monitor their activity under biomimetic vascular flow is lacking. We designed an open-top microfluidic device with sensor capabilities and demonstrated its application in analyzing oxygen metabolism in vascularized 3D tissue models. We first validated the platform by using human lung fibroblast (hLF) spheroids. Then, we applied the platform to a patient-derived cancer organoid and evaluated the changes in oxygen metabolism during drug administration through the vascular network. We found that the platform could integrate a perfusable vascular network with 3D cultured cells, and the electrochemical sensor could detect the change in oxygen metabolism in a quantitative, non-invasive, and real-time manner. This platform would become a monitoring system for 3D cultured cells integrated with a perfusable vascular network.
Collapse
Affiliation(s)
- Yuji Nashimoto
- Frontier Research Institute for Interdisciplinary Sciences (FRIS), Tohoku University, Miyagi, 980-8578, Japan; Graduate School of Engineering, Tohoku University, Miyagi, 980-8579, Japan; Graduate School of Environmental Studies, Tohoku University, Miyagi, 980-8579, Japan.
| | - Rei Mukomoto
- Graduate School of Environmental Studies, Tohoku University, Miyagi, 980-8579, Japan
| | - Takuto Imaizumi
- Graduate School of Environmental Studies, Tohoku University, Miyagi, 980-8579, Japan
| | - Takato Terai
- Graduate School of Environmental Studies, Tohoku University, Miyagi, 980-8579, Japan
| | - Shotaro Shishido
- Graduate School of Environmental Studies, Tohoku University, Miyagi, 980-8579, Japan
| | - Kosuke Ino
- Graduate School of Engineering, Tohoku University, Miyagi, 980-8579, Japan
| | - Ryuji Yokokawa
- Department of Micro Engineering, Kyoto University, Kyoto, 615-8540, Japan
| | - Takashi Miura
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Kunishige Onuma
- Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan
| | - Masahiro Inoue
- Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan
| | - Hitoshi Shiku
- Graduate School of Engineering, Tohoku University, Miyagi, 980-8579, Japan; Graduate School of Environmental Studies, Tohoku University, Miyagi, 980-8579, Japan.
| |
Collapse
|
33
|
Younis MA, Sato Y, Elewa YHA, Kon Y, Harashima H. Self-homing nanocarriers for mRNA delivery to the activated hepatic stellate cells in liver fibrosis. J Control Release 2023; 353:685-98. [PMID: 36521688 DOI: 10.1016/j.jconrel.2022.12.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 11/17/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Abstract
Herein, we report on the development of a platform for the selective delivery of mRNA to the hard-to-transfect Activated Hepatic Stellate Cells (aHSCs), the fundamental player in the progression of liver fibrosis. Using a microfluidic device (iLiNP), we prepared a series of lipid nanoparticles (LNPs) based on a diverse library of pH-sensitive lipids. After an in-depth in vivo optimization of the LNPs, their mRNA delivery efficiency, selectivity, potency, robustness, and biosafety were confirmed. Furthermore, some mechanistic aspects of their selective delivery to aHSCs were investigated. We identified a promising lipid candidate, CL15A6, that has a high affinity to aHSCs. Tweaking the composition and physico-chemical properties of the LNPs enabled the robust and ligand-free mRNA delivery to aHSCs in vivo post intravenous administration, with a high biosafety at mRNA doses of up to 2 mg/Kg, upon either acute or chronic administrations. The mechanistic investigation suggested that CL15A6 LNPs were taken up by aHSCs via Clathrin-mediated endocytosis through the Platelet-derived growth factor receptor beta (PDGFRβ) and showed a pKa-dependent cellular uptake. The novel and scalable platform reported in this study is highly promising for clinical applications.
Collapse
|
34
|
Antonova N, Khristov K, Alexandrova A, Muravyov A, Velcheva I. Development of experimental microfluidic device and methodology for assessing microrheological properties of blood. Clin Hemorheol Microcirc 2022; 83:231-245. [PMID: 36565107 DOI: 10.3233/ch-221631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND OBJECTIVE Microfluidics is a useful tool for investigating blood microrheology. The study aimed to present the development of a microfluidic device for assessing the microrheological properties of blood cells' suspensions and its application in patients with T2DM. METHODS A new microfluidic device was elaborated, connected to a system, including a microscope with a digital camera, a pump with a manometer and a computer with specially developed software. Blood cells' suspensions were investigated in a microchamber between two parallel optical slides within a 100μm distance. The motion of the blood cells in the microchamber was observed by the microscope and it was recorded and visualized by a digital camera. A method for evaluating the deformability of blood cells and a device for its implementation were used [1]. RESULTS The pressure and flow rate ranges in the microfluidic device were specified by model suspensions of beta-ferroxy-hydroxide and red blood cells (RBC) suspensions. The pressure changes, realized by a pump (micropipette), connected to a manometer were established and the corresponding shear rates in the microfluidic device were determined. Data about the blood microrheological properties like RBC aggregation and deformability, leukocyte adhesion from a group of healthy volunteers and from patients with type 2 diabetes mellitus (T2DM) were obtained. CONCLUSIONS The developed device and experimental system is a promising tool for the study of blood microrheology.
Collapse
Affiliation(s)
- Nadia Antonova
- Department of Biomechanics, Institute of Mechanics, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Khristo Khristov
- Department of Medicine and Biology, Yaroslavl State Pedagogical University, Yaroslavl, Russia
| | - Anika Alexandrova
- Department of Biomechanics, Institute of Mechanics, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Alexei Muravyov
- Department of Interfaces and Colloids, Institute of Physical Chemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | | |
Collapse
|
35
|
Donia A, Furqan Shahid M, Hassan SU, Shahid R, Ahmad A, Javed A, Nawaz M, Yaqub T, Bokhari H. Integration of RT-LAMP and Microfluidic Technology for Detection of SARS-CoV-2 in Wastewater as an Advanced Point-of-Care Platform. Food Environ Virol 2022; 14:364-373. [PMID: 35508752 PMCID: PMC9067896 DOI: 10.1007/s12560-022-09522-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 04/04/2022] [Indexed: 05/21/2023]
Abstract
Development of lab-on-a-chip (LOC) system based on integration of reverse transcription loop-mediated isothermal amplification (RT-LAMP) and microfluidic technology is expected to speed up SARS-CoV-2 diagnostics allowing early intervention. In the current work, reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) and RT-LAMP assays were performed on extracted RNA of seven wastewater samples from COVID-19 hotspots. RT‑LAMP assay was also performed on wastewater samples without RNA extraction. Current detection of SARS-CoV-2 is mainly by RT-qPCR of ORF (ORF1ab) and N genes so we targeted both to find the best target gene for SARS-CoV-2 detection. We also performed RT-LAMP with/without RNA extraction inside microfluidic device to target both genes. Positivity rates of RT-qPCR and RT-LAMP performed on extracted RNA were 100.0% (7/7) and 85.7% (6/7), respectively. RT-qPCR results revealed that all 7 wastewater samples were positive for N gene (Ct range 37-39), and negative for ORF1ab, suggesting that N gene could be the best target gene for SARS-CoV-2 detection. RT-LAMP of N and ORF (ORF1a) genes performed on wastewater samples without RNA extraction indicated that all 7 samples remains pink (negative). The color remains pink in all microchannels except microchannels which subjected to RT-LAMP for targeting N region after RNA extraction (yellow color) in 6 out of 7 samples. This study shows that SARS-CoV-2 was successfully detected from wastewater samples using RT-LAMP in microfluidic chips. This study brings the novelty involving the use of wastewater samples for detection of SARS-CoV-2 without previous virus concentration and with/without RNA extraction.
Collapse
Affiliation(s)
- Ahmed Donia
- Department of Biosciences, Faculty of Science, COMSATS University Islamabad, Islamabad, Pakistan
| | - Muhammad Furqan Shahid
- Institute of Microbiology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Sammer-ul Hassan
- Department of Mechanical Engineering, University of Hong Kong, Pok Fu Lam, Hong Kong, Hong Kong
| | - Ramla Shahid
- Department of Biosciences, Faculty of Science, COMSATS University Islamabad, Islamabad, Pakistan
| | | | - Aneela Javed
- Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences, National University of Science and Technology, Islamabad, Pakistan
| | - Muhammad Nawaz
- Institute of Microbiology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Tahir Yaqub
- Institute of Microbiology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Habib Bokhari
- Department of Biosciences, Faculty of Science, COMSATS University Islamabad, Islamabad, Pakistan
- Kohsar University Murree, Murree, Pakistan
| |
Collapse
|
36
|
Huang N, Sheng ZH. Microfluidic devices as model platforms of CNS injury-ischemia to study axonal regeneration by regulating mitochondrial transport and bioenergetic metabolism. Cell Regen 2022; 11:33. [PMID: 36184647 PMCID: PMC9527262 DOI: 10.1186/s13619-022-00138-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/28/2022] [Indexed: 11/10/2022]
Abstract
Central nervous system (CNS) neurons typically fail to regenerate their axons after injury leading to neurological impairment. Axonal regeneration is a highly energy-demanding cellular program that requires local mitochondria to supply most energy within injured axons. Recent emerging lines of evidence have started to reveal that injury-triggered acute mitochondrial damage and local energy crisis contribute to the intrinsic energetic restriction that accounts for axon regeneration failure in the CNS. Characterizing and reprogramming bioenergetic signaling and mitochondrial maintenance after axon injury-ischemia is fundamental for developing therapeutic strategies that can restore local energy metabolism and thus facilitate axon regeneration. Therefore, establishing reliable and reproducible neuronal model platforms is critical for assessing axonal energetic metabolism and regeneration capacity after injury-ischemia. In this focused methodology article, we discuss recent advances in applying cutting-edge microfluidic chamber devices in combination with state-of-the-art live-neuron imaging tools to monitor axonal regeneration, mitochondrial transport, bioenergetic metabolism, and local protein synthesis in response to injury-ischemic stress in mature CNS neurons.
Collapse
Affiliation(s)
- Ning Huang
- grid.94365.3d0000 0001 2297 5165Synaptic Function Section, The Porter Neuroscience Research Center, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Room 2B-215, 35 Convent Drive, Bethesda, MD 20892-3706 USA ,grid.43169.390000 0001 0599 1243Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, 710061 Shaanxi China ,grid.43169.390000 0001 0599 1243Institute of Neuroscience, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, 710061 Shaanxi China
| | - Zu-Hang Sheng
- grid.94365.3d0000 0001 2297 5165Synaptic Function Section, The Porter Neuroscience Research Center, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Room 2B-215, 35 Convent Drive, Bethesda, MD 20892-3706 USA
| |
Collapse
|
37
|
Nella KT, Norton BM, Chang HT, Heuer RA, Roque CB, Matsuoka AJ. Bridging the electrode-neuron gap: finite element modeling of in vitro neurotrophin gradients to optimize neuroelectronic interfaces in the inner ear. Acta Biomater 2022:S1742-7061(22)00511-6. [PMID: 36007779 DOI: 10.1016/j.actbio.2022.08.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 08/13/2022] [Accepted: 08/16/2022] [Indexed: 11/23/2022]
Abstract
Although cochlear implant (CI) technology has allowed for the partial restoration of hearing over the last few decades, persistent challenges (e.g., poor performance in noisy environments and limited ability to decode intonation and music) remain. The "electrode-neuron gap" is inherent to these challenges and poses the most significant obstacle to advancing past the current plateau in CI performance. We propose the development of a "neuro-regenerative nexus"-a biological interface that doubly preserves native spiral ganglion neurons (SGNs) while precisely directing the growth of neurites arising from transplanted human pluripotent stem cell (hPSC)-derived otic neuronal progenitors (ONPs) toward the native SGN population. We hypothesized that the Polyhedrin Delivery System (PODS®-recombinant human brain-derived neurotrophic factor [rhBDNF]) could stably provide the adequate BDNF concentration gradient to hPSC-derived late-stage ONPs to facilitate otic neuronal differentiation and directional neurite outgrowth. To test this hypothesis, a finite element model (FEM) was constructed to simulate BDNF concentration profiles generated by PODS®-rhBDNF based on initial concentration and culture device geometry. For biological validation of the FEM, cell culture experiments assessing survival, differentiation, neurite growth direction, and synaptic connections were conducted using a multi-chamber microfluidic device. We were able to successfully generate the optimal BDNF concentration gradient to enable survival, neuronal differentiation toward SGNs, directed neurite extension of hPSC-derived SGNs, and synaptogenesis between two hPSC-derived SGN populations. This proof-of-concept study provides a step toward the next generation of CI technology. STATEMENT OF SIGNIFICANCE: Our study demonstrates that the generation of in vitro neurotrophin concentration gradients facilitates survival, neuronal differentiation toward auditory neurons, and directed neurite extension of human pluripotent stem cell-derived auditory neurons. These findings are indispensable to designing a bioactive cochlear implant, in which stem cell-derived neurons are integrated into a cochlear implant electrode strip, as the strategy will confer directional neurite growth from the transplanted cells in the inner ear. This study is the first to present the concept of a "neuro-regenerative nexus" congruent with a bioactive cochlear implant to eliminate the electrode-neuron gapthe most significant barrier to next-generation cochlear implant technology.
Collapse
|
38
|
Arini A, Venel Z, Tabuteau H, Gigault J, Baudrimont M. Early molecular responses of mangrove oysters to nanoplastics using a microfluidic device to mimic environmental exposure. J Hazard Mater 2022; 436:129283. [PMID: 35739792 DOI: 10.1016/j.jhazmat.2022.129283] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/25/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
This study assessed the effects of nanoplastics (NPs) using for the very first time microfluidic devices (chip) mimicking transition waters. Three kinds of NPs were tested: crushed NPs from polystyrene pellets (NP-PS), or from Guadeloupe beaches (NP-G); and latex PS (PSL-COOH). The eluted fractions from the microfluidic device showed a low aggregation of NPs. They remained stable over time in the exposure media, with a stabilization of NPs of small sizes (< 500 nm). These chips were thus used for the toxicological assessment of NPs on swamp oysters, Isognomon alatus. Oysters were exposed for 7 days to the chip elution fraction of either NP-G, NP-PS or PSL-COOH (0.34-333 µg.L-1). Gene transcription analyses showed that the tested NPs triggered responses on genes involved in endocytosis, mitochondrial metabolism disruption, oxidative stress, DNA repair, and detoxification. Highest responses were observed after NP-G exposure at low concentrations (1 µg.L-1), as they are originated from the natural environment and accumulated contaminants, enhancing toxicological effects. As salinity influences aggregation and then the bioavailability of NPs, our results demonstrated the importance of using microfluidic devices for ecotoxicological studies on swamp or estuarine species.
Collapse
Affiliation(s)
- Adeline Arini
- University of Bordeaux, CNRS, UMR EPOC 5805, équipe Ecotoxicologie Aquatique, F-33120 Arcachon, France
| | - Zélie Venel
- University of Bordeaux, CNRS, UMR EPOC 5805, équipe Ecotoxicologie Aquatique, F-33120 Arcachon, France; University of Rennes, CNRS, UMR Geosciences Rennes 6118, F-35000 Rennes, France
| | - Hervé Tabuteau
- University of Rennes, CNRS, IPR (Institut de Physique de Rennes), UMR 6251, F-35000 Rennes, France
| | - Julien Gigault
- Université Laval, Département de Biologie, Pavillon Alexandre-Vachon, G1V 0A6, Québec, Canada
| | - Magalie Baudrimont
- University of Bordeaux, CNRS, UMR EPOC 5805, équipe Ecotoxicologie Aquatique, F-33120 Arcachon, France.
| |
Collapse
|
39
|
Sugiura S, Satoh T, Shin K, Onuki-Nagasaki R, Kanamori T. Perfusion culture of multi-layered HepG2 hepatocellular carcinoma cells in a pressure-driven microphysiological system. J Biosci Bioeng 2022; 134:348-355. [PMID: 35963667 DOI: 10.1016/j.jbiosc.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 07/03/2022] [Accepted: 07/04/2022] [Indexed: 11/25/2022]
Abstract
Here we report the perfusion culture of a multi-layered tissue composed of HepG2 cells (a human hepatoma line) in a pressure-driven microphysiological system (PD-MPS), which we developed previously as a multi-throughput perfusion culture platform. The perfusion culture of multi-layered tissue model was constructed by inserting a modified commercially available permeable membrane insert into the PD-MPS. HepG2 cells were layered on the membrane, and culture medium was perfused both through and below the membrane. The seeded density (number of cells/cm2) of the culture model is 70 times that of static culture in a conventional 35-mm culture dish. Pressure-driven circulation of the medium in our compact device (8.6 × 7.0 × 4.5 cm3), which comprised two perfusion-culture modules and a pneumatic connection port, enabled perfusion culture of two multi-layered tissues (initially 1 × 105 cells). To obtain insight into the basic functionality of the multi-layered tissues as hepatocytes, we compared albumin production and urea synthesis between perfusion cultures and static cultures. The HepG2 cells grew and secreted increasing amounts of albumin throughout 20 days of perfusion culture, whereas albumin secretion did not increase under static culture conditions. In addition, on day 20, the amount of albumin secreted by the HepG2 cells in the microfluidic device was 68% of that in the conventional culture dish, which was seeded with the same number of cells but had a 70 times larger culture area. These features of high-density culture of functioning cells in a compact device support the application of PD-MPS in single- and multi-organ MPS.
Collapse
Affiliation(s)
- Shinji Sugiura
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5th, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | - Taku Satoh
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5th, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan; Stem Cell Evaluation Technology Research Association, Astellas Pharma, 21 Miyukigaoka, Tsukuba, Ibaraki 305-8585, Japan
| | - Kazumi Shin
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5th, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Reiko Onuki-Nagasaki
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5th, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan; Stem Cell Evaluation Technology Research Association, Astellas Pharma, 21 Miyukigaoka, Tsukuba, Ibaraki 305-8585, Japan
| | - Toshiyuki Kanamori
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5th, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| |
Collapse
|
40
|
Tian C, Zheng S, Liu X, Kamei KI. Tumor-on-a-chip model for advancement of anti-cancer nano drug delivery system. J Nanobiotechnology 2022; 20:338. [PMID: 35858898 PMCID: PMC9301849 DOI: 10.1186/s12951-022-01552-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 07/12/2022] [Indexed: 12/27/2022] Open
Abstract
Despite explosive growth in the development of nano-drug delivery systems (NDDS) targeting tumors in the last few decades, clinical translation rates are low owing to the lack of efficient models for evaluating and predicting responses. Microfluidics-based tumor-on-a-chip (TOC) systems provide a promising approach to address these challenges. The integrated engineered platforms can recapitulate complex in vivo tumor features at a microscale level, such as the tumor microenvironment, three-dimensional tissue structure, and dynamic culture conditions, thus improving the correlation between results derived from preclinical and clinical trials in evaluating anticancer nanomedicines. The specific focus of this review is to describe recent advances in TOCs for the evaluation of nanomedicine, categorized into six sections based on the drug delivery process: circulation behavior after infusion, endothelial and matrix barriers, tumor uptake, therapeutic efficacy, safety, and resistance. We also discuss current issues and future directions for an end-use perspective of TOCs.
Collapse
Affiliation(s)
- Chutong Tian
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning, People's Republic of China.,Chinese People's Liberation Army 210 Hospital, 116021, Dalian, People's Republic of China
| | - Shunzhe Zheng
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning, People's Republic of China
| | - Xinying Liu
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning, People's Republic of China
| | - Ken-Ichiro Kamei
- Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, 110016, Liaoning, People's Republic of China. .,Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida-Ushinomiya-cho, Sakyo-ku, 606-8501, Kyoto, Japan.
| |
Collapse
|
41
|
Okuda K, Sato Y, Iwakawa K, Sasaki K, Okabe N, Maeki M, Tokeshi M, Harashima H. On the size-regulation of RNA-loaded lipid nanoparticles synthesized by microfluidic device. J Control Release 2022; 348:648-659. [PMID: 35716883 DOI: 10.1016/j.jconrel.2022.06.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/27/2022] [Accepted: 06/10/2022] [Indexed: 10/18/2022]
Abstract
The use of lipid nanoparticles (LNPs) for nucleic acid delivery is now becoming a promising strategy with a number of clinical trials as vaccines or as novel therapies against a variety of genetic and infectious diseases. The use of microfluidics for the synthesis of the LNPs has attracted interest because of its considerable advantages over other conventional synthetic methods including scalability, reproducibility, and speed. However, despite the potential usefulness of large particles for nucleic acid delivery to dendritic cells (DCs) as a vaccine, the particle size of the LNPs prepared using microfluidics is typically limited to approximately from 30 to 100 nm. In this study, focusing on Derjaguin-Landau-Verwey-Overbeek (DLVO) theory, the effect of some synthetic parameters, including total flow rate, flow rate ratio, buffer pH, lipid concentration, molar ratio of PEG-lipid as well as salt concentration, on particle size was systematically examined by means of the design of experiment approaches. The findings indicated that the simple addition of salt (e.g. NaCl) to a buffer containing nucleic acids contributed greatly to the synthesis of large LNPs over 200 nm and this effect was concentration-dependent with respect to the salt. The effect of salt on particle size was consistent with a Hofmeister series. The systemic injection of larger mRNA-loaded LNPs resulted in a higher transgene expression in mouse splenic DCs, a higher activation of various splenic immune cells, and had a superior effect as a therapeutic cancer vaccine in a syngeneic mouse model compared to the smaller-sized counterpart with constant lipid composition prepared with lower NaCl concentration. Collectively, size-regulation by the simple addition of salt is a promising strategy for developing potent LNPs.
Collapse
Affiliation(s)
- Kento Okuda
- Laboratory for Molecular Design of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-Ku, Sapporo 060-0812, Japan
| | - Yusuke Sato
- Laboratory for Molecular Design of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-Ku, Sapporo 060-0812, Japan.
| | - Kazuki Iwakawa
- Laboratory for Molecular Design of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-Ku, Sapporo 060-0812, Japan
| | - Kosuke Sasaki
- Laboratory for Molecular Design of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-Ku, Sapporo 060-0812, Japan
| | - Nana Okabe
- Laboratory for Molecular Design of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-Ku, Sapporo 060-0812, Japan
| | - Masatoshi Maeki
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-Ku, Sapporo 060-8628, Japan; JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Manabu Tokeshi
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-Ku, Sapporo 060-8628, Japan; Innovative Research Center for Preventive Medical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan; Institute of Nano-Life Systems, Institutes of Innovation for Future Society, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Hideyoshi Harashima
- Laboratory for Molecular Design of Pharmaceutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-Ku, Sapporo 060-0812, Japan.
| |
Collapse
|
42
|
Kitahara Y, Itani A, Oda Y, Okamura M, Mizoshiri M, Shida Y, Nakamura T, Kasahara K, Ogasawara W. A real-time monitoring system for automatic morphology analysis of yeast cultivation in a jar fermenter. Appl Microbiol Biotechnol 2022; 106:4683-4693. [PMID: 35687157 DOI: 10.1007/s00253-022-12002-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 11/28/2022]
Abstract
The monitoring of microbial cultivation in real time and controlling their cultivation aid in increasing the production yield of useful material in a jar fermenter. Common sensors such as dissolved oxygen (DO) and pH can easily provide general-purpose indexes but do not reveal the physiological states of microbes because of the complexity of measuring them in culture conditions. It is well known from microscopic observations that the microbial morphology changes in response to the intracellular state or extracellular environment. Recently, studies have focused on rapid and quantitative image analysis techniques using machine learning or deep learning for gleaning insights into the morphological, physiological or gene expression information in microbes. During image analysis, it is necessary to retrieve high-definition images to analyze the microbial morphology in detail. In this study, we have developed a microfluidic device with a high-speed camera for the microscopic observation of yeast, and have constructed a system capable of generating their morphological information in real-time and at high definition. This system was connected to a jar fermenter, which enabled the automatic sampling for monitoring the cultivation. We successfully acquired high-definition images of over 10,000 yeast cells in about 2.2 s during ethanol fermentation automatically for over 168 h. We recorded 33,600 captures containing over 1,680,000 cell images. By analyzing these images, the morphological changes of yeast cells through ethanol fermentation could be captured, suggesting the expansion of the application of this system in controlling microbial fermentation using the morphological information generated. KEY POINTS: • Enables real-time visualization of microbes in a jar fermenter using microscopy. • Microfluidic device for acquiring high-definition images. • Generates a large amount of image data by using a high-speed camera.
Collapse
Affiliation(s)
- Yukina Kitahara
- Department of Science of Technology Innovation, Nagaoka University of Technology, 1603-1, Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Ayaka Itani
- Department of Bioengineering, Nagaoka University of Technology, 1603-1, Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Yosuke Oda
- Department of Mechanical Engineering, Nagaoka University of Technology, 1603-1, Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Makoto Okamura
- NRI System Techno Ltd, 134, Kobecho, Hodogaya-ku, Yokohama, Kanagawa, 240-0005, Japan
| | - Mizue Mizoshiri
- Department of Mechanical Engineering, Nagaoka University of Technology, 1603-1, Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Yosuke Shida
- Department of Bioengineering, Nagaoka University of Technology, 1603-1, Kamitomioka, Nagaoka, Niigata, 940-2188, Japan
| | - Toru Nakamura
- NRI System Techno Ltd, 134, Kobecho, Hodogaya-ku, Yokohama, Kanagawa, 240-0005, Japan
| | - Ken Kasahara
- Chitose Laboratory Corp, Biotechnology Research Center, 2-13-3 Nogawahoncho, Miyamae-ku, Kawasaki, Kanagawa, 216-0041, Japan
| | - Wataru Ogasawara
- Department of Science of Technology Innovation, Nagaoka University of Technology, 1603-1, Kamitomioka, Nagaoka, Niigata, 940-2188, Japan. .,Department of Bioengineering, Nagaoka University of Technology, 1603-1, Kamitomioka, Nagaoka, Niigata, 940-2188, Japan.
| |
Collapse
|
43
|
Mirsanei JS, Sheibak N, Zandieh Z, Mehdizadeh M, Aflatoonian R, Tabatabaei M, Mousavi AS, Amjadi F. Microfluidic chips as a method for sperm selection improve fertilization rate in couples with fertilization failure. Arch Gynecol Obstet 2022; 306:901-910. [PMID: 35650258 DOI: 10.1007/s00404-022-06618-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 05/07/2022] [Indexed: 11/02/2022]
Abstract
PURPOSE Sperm quality plays a vital role in successful fertilization and pregnancy. Patients with fertilization failure (total failure or low-fertilization rate) despite having normal semen parameters are a challenging group whose sperm cannot fertilize the oocyte via the intracytoplasmic sperm injection (ICSI) technique. Microfluidics is offered as a new method for proper sperm sorting. METHODS This study aimed to evaluate sperm parameters, DNA fragmentation index (DFI), expression of phospholipase C zeta 1 (PLCZ1), and transition nuclear proteins 1 (TNP1) mRNAs in sperm selected by microfluidic sperm sorting (MSS) chip compared with conventional density gradient centrifugation technique in patients with fertilization failure following ICSI. Subsequence fertilization rate and embryo quality were assayed. RESULTS Normal morphology and total motility were significantly higher, and DFI was significantly lower in sperm selected by the MSS chip in fertilization failure and control groups. The RT-PCR results demonstrated a significant increase in the expression of PLCZ1 and TNP1 genes in sperm of both groups selected by MSS chips compared to the DGC method. In addition, with the selected sperm by MSS chip, an increase in fertilization rate and improvement of embryo quality was obtained. CONCLUSION The present study findings show that sperm sorting by the microfluidic method improves fertilization rate in patients with poor fertilization outcomes following ICSI.
Collapse
Affiliation(s)
- Jamileh Sadat Mirsanei
- Department of Anatomical Sciences, Reproductive Sciences and Technology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences, Tehran, Iran
| | - Nadia Sheibak
- Department of Anatomical Sciences, Reproductive Sciences and Technology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Zandieh
- Department of Anatomical Sciences, Reproductive Sciences and Technology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Mehdizadeh
- Department of Anatomical Sciences, Reproductive Sciences and Technology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Aflatoonian
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Maryamsadat Tabatabaei
- Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences, Tehran, Iran
| | - Atieh Sadat Mousavi
- Department of Anatomical Sciences, Reproductive Sciences and Technology Research Center, Iran University of Medical Sciences, Tehran, Iran.,Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences, Tehran, Iran
| | - Fatemehsadat Amjadi
- Department of Anatomical Sciences, Reproductive Sciences and Technology Research Center, Iran University of Medical Sciences, Tehran, Iran. .,Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
44
|
Wada KI, Hosokawa K, Ito Y, Mizuo M, Harada Y, Yonemitsu Y. Generation of transmitochondrial cybrids using a microfluidic device. Exp Cell Res 2022; 418:113233. [PMID: 35659971 DOI: 10.1016/j.yexcr.2022.113233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 05/26/2022] [Accepted: 05/28/2022] [Indexed: 11/04/2022]
Abstract
Mitochondrial cloning is a promising approach to achieve homoplasmic mitochondrial DNA (mtDNA) mutations. We previously developed a microfluidic device that performs single mitochondrion transfer from a mtDNA-intact cell to a mtDNA-less (ρ0) cell by promoting cytoplasmic connection through a microtunnel between them. In the present study, we described a method for generating transmitochondrial cybrids using the microfluidic device. After achieving mitochondrial transfer between HeLa cells and thymidine kinase-deficient ρ0143B cells using the microfluidic device, selective culture was carried out using a pyruvate and uridine (PU)-absent and 5-bromo-2'-deoxyuridine-supplemented culture medium. The resulting cells contained HeLa mtDNA and 143B nuclei, but both 143B mtDNA and HeLa nuclei were absent in these cells. Additionally, these cells showed lower lactate production than parent ρ0143B cells and disappearance of PU auxotrophy for cell growth. These results suggest successful generation of transmitochondrial cybrids using the microfluidic device. Furthermore, we succeeded in selective harvest of generated transmitochondrial cybrids under a PU-supplemented condition by removing unfused ρ0 cells with puromycin-based selection in the microfluidic device.
Collapse
Affiliation(s)
- Ken-Ichi Wada
- R&D Laboratory for Innovative Biotherapeutics, Graduate School of Pharmaceutical Sciences, Kyushu Univ., 3-1-1 Maidasi, Higashi, Fukuoka, 8112-8582, Japan; Bioengineering Laboratory, Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan; Nano Medical Engineering Laboratory, Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.
| | - Kazuo Hosokawa
- Bioengineering Laboratory, Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Yoshihiro Ito
- Nano Medical Engineering Laboratory, Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Maeda Mizuo
- Bioengineering Laboratory, Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Yui Harada
- R&D Laboratory for Innovative Biotherapeutics, Graduate School of Pharmaceutical Sciences, Kyushu Univ., 3-1-1 Maidasi, Higashi, Fukuoka, 8112-8582, Japan
| | - Yoshikazu Yonemitsu
- R&D Laboratory for Innovative Biotherapeutics, Graduate School of Pharmaceutical Sciences, Kyushu Univ., 3-1-1 Maidasi, Higashi, Fukuoka, 8112-8582, Japan
| |
Collapse
|
45
|
Zohar B, Debbi L, Machour M, Nachum N, Redenski I, Epshtein M, Korin N, Levenberg S. A micro-channel array in a tissue engineered vessel graft guides vascular morphogenesis for anastomosis with self-assembled vascular networks. Acta Biomater 2022; 163:182-193. [PMID: 35597433 DOI: 10.1016/j.actbio.2022.05.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 05/08/2022] [Accepted: 05/12/2022] [Indexed: 12/30/2022]
Abstract
Vascularization of 3D engineered tissues poses a great challenge in the field of tissue engineering. One promising approach for vascularizing engineered tissue is cocultivation with endothelial cells (ECs), which spontaneously self-assemble into a natural capillary network in the presence of supportive cells. However, the ECs do not self-assemble according to physiological hierarchy which is required to support blood supply. This work describes the design and fabrication of an AngioTube, a biodegradable engineered macro-vessel surrounded by cylindrical micro-channel array, which is designed to support physiological flow distribution and enable the integration with living capillaries. The well-defined geometry of the engineered micro-channels guides endothelial cells to form patent micro-vessels which sprouted in accordance with the channel orientation. Three different in-vitro models were used to demonstrate anastomosis of these engineered micro-vessels with self-assembled vascular networks. Finally, in-vivo functionality was demonstrated by direct anastomosis with the femoral artery in a rat hindlimb model. This unique approach proposes a new micro-fabrication strategy which introduces uncompromised micro-fluidic device geometrical accuracy at the tissue-scale level. STATEMENT OF SIGNIFICANCE: This study proposes a micro-fabrication strategy suitable for processing real-scale cylindrical implants with very high accuracy, which will enable translation of the high-resolution geometry of micro-fluidic devices to clinically relevant implants containing functional multi-scale vascular networks. Moreover, this approach promises to advance the field of tissue engineering by opening new opportunities to explore the impact of well controlled and uncompromised 3D micro-geometry on cellular behavior.
Collapse
Affiliation(s)
- Barak Zohar
- Department of Biomedical Engineering, Technion-Israel Institute of Technology
| | - Lior Debbi
- Department of Biomedical Engineering, Technion-Israel Institute of Technology
| | - Majd Machour
- Department of Biomedical Engineering, Technion-Israel Institute of Technology
| | - Netta Nachum
- Department of Biomedical Engineering, Technion-Israel Institute of Technology
| | - Idan Redenski
- Department of Biomedical Engineering, Technion-Israel Institute of Technology
| | - Mark Epshtein
- Department of Biomedical Engineering, Technion-Israel Institute of Technology
| | - Netanel Korin
- Department of Biomedical Engineering, Technion-Israel Institute of Technology
| | - Shulamit Levenberg
- Department of Biomedical Engineering, Technion-Israel Institute of Technology.
| |
Collapse
|
46
|
Kim J, Park H, Kim H, Kim Y, Oh HJ, Chung S. Microfluidic one-directional interstitial flow generation from cancer to cancer associated fibroblast. Acta Biomater 2022; 144:258-265. [PMID: 35364320 DOI: 10.1016/j.actbio.2022.03.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 03/05/2022] [Accepted: 03/24/2022] [Indexed: 11/01/2022]
Abstract
Tumors, unlike normal tissue, have vascular anomalies and create interstitial flow (IF), which allows soluble substances from cancer cells to be transported directionally toward the tumor stroma. In the stroma, IF activates fibroblasts. Cancer-associated fibroblasts (CAFs) are formed from stimulated cells and aid cancer growth. A microfluidic device was designed to generate a one-directional flow of a small volume mimicking IF from donor cells to recipient at steady-state conditions only based on the medium evaporation from reservoirs with different diameter. The IF carried substances from donor cells, which stimulated the activation of fibroblasts on the receiving side, as well as their migration and stellate formation. Matrix metallopeptidases 9 and 14 as well as CAF markers such as fibroblast activation protein alpha, vimentin, and alpha-smooth muscle actin are abundantly expressed in the migrating fibroblasts. The created platform mimicked one-directional delivery in tumor stroma. This will allow researchers to investigate how cancer cells activate and differentiate stromal cells. STATEMENT OF SIGNIFICANCE: We show how to provide continuous one-directional interstitial flow (IF) in a microfluidic device without using any power source and instrumentation. This microfluidic technology was used to simulate the tumor microenvironment. Fibroblasts in the tumor stroma are activated and migrated toward cancer cells, as recapitulated by co-culture of cancer cells as donor and fibroblasts as recipient under the one-directional IF. We believe that soluble substances from cancerous cells delivered by the one-directional IF efficiently regulated the development of cancer-associated fibroblasts (CAFs), as shown by increasing roundness and decreased circularity, taking on a stellate morphology, and by enhanced invasion into a type I collagen hydrogel. Migrating fibroblasts into the hydrogel had significant levels of MMP-9, MMP-14, FAP, vimentin, and αSMA, all of which are CAF markers, bearing a capacity to form hot stroma affecting tumor malignancy.
Collapse
|
47
|
Liu X, Wang F, Meng Y, Zhao L, Shi W, Wang X, He Z, Chao J, Li C. Electrochemical/visual microfluidic detection with a covalent organic framework supported platinum nanozyme-based device for early diagnosis of pheochromocytoma. Biosens Bioelectron 2022; 207:114208. [PMID: 35344731 DOI: 10.1016/j.bios.2022.114208] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/18/2022] [Accepted: 03/19/2022] [Indexed: 02/08/2023]
Abstract
The development of smart, portable, and sensitive devices for the monitoring of circulating tumor cells (CTCs) is essential to diagnose several diseases, including pheochromocytoma (PCC). Therefore, in this study, a dual-mode (electrochemical/visual) microfluidic device was designed for the rapid and sensitive detection of PCC-CTCs using a microfluidic chip for automatic cell sampling and detection and a smartphone-based three-dimensional-printed accessory for signal output analysis. The device was employed to capture and identify PCC-CTCs via specific immunogenic binding to the norepinephrine transporter and somatostatin receptor, which are overexpressed on the surface of PCC cells. Specifically, targeted-modified magnetic particles were used to capture and separate PCC-CTCs from peripheral blood; then, similarly modified covalent organic framework based nanozymes (COF@Pt) were used as peroxidase mimics to amplify the electrochemical response from H2O2 reduction and catalyze the oxidation of 3,3',5,5'-tetramethylbenzidine by hydroxyl radicals in the presence of the PCC cells to enable visual quantification. Using the prepared microfluidic device, a low detection limit of 1 cell mL-1 at a signal-to-noise ratio of 3 and a wide linear range of 2 to 105 cells mL-1 were achieved. Overall, this work demonstrates a portable, sensitive, and visual platform for PCC diagnostics that meets the requirement for quick and precise point-of-care diagnostics.
Collapse
Affiliation(s)
- Xiaoya Liu
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, China; Cell and Biomolecule Recognition Research Center, School of Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Fei Wang
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, China; Cell and Biomolecule Recognition Research Center, School of Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Yang Meng
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, China; Cell and Biomolecule Recognition Research Center, School of Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Liping Zhao
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, China; Cell and Biomolecule Recognition Research Center, School of Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Wenjing Shi
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, China; Cell and Biomolecule Recognition Research Center, School of Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Xun Wang
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, China; Cell and Biomolecule Recognition Research Center, School of Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Zikang He
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, China; Cell and Biomolecule Recognition Research Center, School of Science, China Pharmaceutical University, Nanjing, 211198, China
| | - Jie Chao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Caolong Li
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing, 211198, China; Cell and Biomolecule Recognition Research Center, School of Science, China Pharmaceutical University, Nanjing, 211198, China.
| |
Collapse
|
48
|
Ho TM, Razzaghi A, Ramachandran A, Mikkonen KS. Emulsion characterization via microfluidic devices: A review on interfacial tension and stability to coalescence. Adv Colloid Interface Sci 2022; 299:102541. [PMID: 34920366 DOI: 10.1016/j.cis.2021.102541] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/22/2021] [Accepted: 10/03/2021] [Indexed: 01/29/2023]
Abstract
Emulsions have gained significant importance in many industries including foods, pharmaceuticals, cosmetics, health care formulations, paints, polymer blends and oils. During emulsion generation, collisions can occur between newly-generated droplets, which may lead to coalescence between the droplets. The extent of coalescence is driven by the properties of the dispersed and continuous phases (e.g. density, viscosity, ion strength and pH), and system conditions (e.g. temperature, pressure or any external applied forces). In addition, the diffusion and adsorption behaviors of emulsifiers which govern the dynamic interfacial tension of the forming droplets, the surface potential, and the duration and frequency of the droplet collisions, contribute to the overall rate of coalescence. An understanding of these complex behaviors, particularly those of interfacial tension and droplet coalescence during emulsion generation, is critical for the design of an emulsion with desirable properties, and for the optimization of the processing conditions. However, in many cases, the time scales over which these phenomena occur are extremely short, typically a fraction of a second, which makes their accurate determination by conventional analytical methods extremely challenging. In the past few years, with advances in microfluidic technology, many attempts have demonstrated that microfluidic systems, characterized by micrometer-size channels, can be successfully employed to precisely characterize these properties of emulsions. In this review, current applications of microfluidic devices to determine the equilibrium and dynamic interfacial tension during droplet formation, and to investigate the coalescence stability of dispersed droplets applicable to the processing and storage of emulsions, are discussed.
Collapse
|
49
|
Garone MG, D'Antoni C, Rosa A. Culture of Human iPSC-Derived Motoneurons in Compartmentalized Microfluidic Devices and Quantitative Assays for Studying Axonal Phenotypes. Methods Mol Biol 2022; 2429:189-199. [PMID: 35507162 DOI: 10.1007/978-1-0716-1979-7_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In order to use induced Pluripotent Stem Cells (iPSCs) to model neurodegenerative diseases, efficient and homogeneous generation of neurons in vitro represents a key step. Here we describe a method to obtain and characterize functional human spinal and cranial motoneurons using a combined approach of microfluidic chips and programs designed for scientific multidimensional imaging. We have used this approach to analyze axonal phenotypes. These tools are useful to investigate the cellular and molecular bases of neuromuscular diseases, including amyotrophic lateral sclerosis and spinal muscular atrophy.
Collapse
Affiliation(s)
- Maria Giovanna Garone
- Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Rome, Italy
| | - Chiara D'Antoni
- Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Rome, Italy
- Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Rome, Italy
| | - Alessandro Rosa
- Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Rome, Italy.
- Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Rome, Italy.
- Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia, Rome, Italy.
| |
Collapse
|
50
|
Wang T, Meunier FA. Live-Cell Superresolution Imaging of Retrograde Axonal Trafficking Using Pulse-Chase Labeling in Cultured Hippocampal Neurons. Methods Mol Biol 2022; 2473:101-128. [PMID: 35819762 DOI: 10.1007/978-1-0716-2209-4_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The entanglement of long axons found in cultured dissociated hippocampal neurons restricts the analysis of the machinery underlying directed axonal trafficking. Further, hippocampal neurons exhibit "en passant" presynapses that may confound the analysis of long-range retrograde axonal transport. To solve these issues, we and others have developed microfluid-based methods to specifically follow the fates of the retrograde axonal cargoes following pulse-chase labeling by super-resolution live-cell imaging, and automatically tracking their directed transport and analyzing their kinetical properties. These methods have allowed us to visualize the trafficking of fluorescently tagged signaling endosomes and autophagosomes derived from axonal terminals and resolve their localizations and movements with high spatial and temporal accuracy. In this chapter, we describe how to use a commercially available microfluidic device to enable the labeling and tracking of retrograde axonal carriers, including (1) how to culture and transfect rat hippocampal neurons in the microfluidic device; (2) how to perform pulse-chase to label specific populations of retrograde axonal carriers; and (3) how to conduct the automatic tracking and data analysis using open-source software.
Collapse
Affiliation(s)
- Tong Wang
- Center for Brain Science, School of Life Science and Technology, Shanghaitech University, Shanghai, China.
| | - Frédéric A Meunier
- Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
| |
Collapse
|