1
|
Amartumur S, Nguyen H, Huynh T, Kim TS, Woo RS, Oh E, Kim KK, Lee LP, Heo C. Neuropathogenesis-on-chips for neurodegenerative diseases. Nat Commun 2024; 15:2219. [PMID: 38472255 PMCID: PMC10933492 DOI: 10.1038/s41467-024-46554-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Developing diagnostics and treatments for neurodegenerative diseases (NDs) is challenging due to multifactorial pathogenesis that progresses gradually. Advanced in vitro systems that recapitulate patient-like pathophysiology are emerging as alternatives to conventional animal-based models. In this review, we explore the interconnected pathogenic features of different types of ND, discuss the general strategy to modelling NDs using a microfluidic chip, and introduce the organoid-on-a-chip as the next advanced relevant model. Lastly, we overview how these models are being applied in academic and industrial drug development. The integration of microfluidic chips, stem cells, and biotechnological devices promises to provide valuable insights for biomedical research and developing diagnostic and therapeutic solutions for NDs.
Collapse
Affiliation(s)
- Sarnai Amartumur
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, 16419, Korea
| | - Huong Nguyen
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, 16419, Korea
| | - Thuy Huynh
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, 16419, Korea
| | - Testaverde S Kim
- Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon, 16419, Korea
| | - Ran-Sook Woo
- Department of Anatomy and Neuroscience, College of Medicine, Eulji University, Daejeon, 34824, Korea
| | - Eungseok Oh
- Department of Neurology, Chungnam National University Hospital, Daejeon, 35015, Korea
| | - Kyeong Kyu Kim
- Department of Precision Medicine, Graduate School of Basic Medical Science (GSBMS), Institute for Anti-microbial Resistance Research and Therapeutics, Sungkyunkwan University School of Medicine, Suwon, 16419, Korea
| | - Luke P Lee
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, 16419, Korea.
- Harvard Medical School, Division of Engineering in Medicine and Renal Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA.
- Department of Bioengineering, Department of Electrical Engineering and Computer Science, University of California, Berkeley, CA, 94720, USA.
| | - Chaejeong Heo
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, 16419, Korea.
- Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon, 16419, Korea.
| |
Collapse
|
2
|
Hasannejad F, Montazeri L, Mano JF, Bonakdar S, Fazilat A. Regulation of cell fate by cell imprinting approach in vitro. BIOIMPACTS : BI 2023; 14:29945. [PMID: 38938752 PMCID: PMC11199935 DOI: 10.34172/bi.2023.29945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 09/13/2023] [Accepted: 09/19/2023] [Indexed: 06/29/2024]
Abstract
Cell culture-based technologies are widely utilized in various domains such as drug evaluation, toxicity assessment, vaccine and biopharmaceutical development, reproductive technology, and regenerative medicine. It has been demonstrated that pre-adsorption of extracellular matrix (ECM) proteins including collagen, laminin and fibronectin provide more degrees of support for cell adhesion. The purpose of cell imprinting is to imitate the natural topography of cell membranes by gels or polymers to create a reliable environment for the regulation of cell function. The results of recent studies show that cell imprinting is a tool to guide the behavior of cultured cells by controlling their adhesive interactions with surfaces. Therefore, in this review we aim to compare different cell cultures with the imprinting method and discuss different cell imprinting applications in regenerative medicine, personalized medicine, disease modeling, and cell therapy.
Collapse
Affiliation(s)
- Farkhonde Hasannejad
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Science, Semnan, Iran
- Genetic Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Leila Montazeri
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Portugal
| | - Shahin Bonakdar
- National Cell Bank Department, Pasteur Institute of Iran, Tehran, Iran
| | - Ahmad Fazilat
- Genetic Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| |
Collapse
|
3
|
Bonneau N, Potey A, Vitoux MA, Magny R, Guerin C, Baudouin C, Peyrin JM, Brignole-Baudouin F, Réaux-Le Goazigo A. Corneal neuroepithelial compartmentalized microfluidic chip model for evaluation of toxicity-induced dry eye. Ocul Surf 2023; 30:307-319. [PMID: 37984561 DOI: 10.1016/j.jtos.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 11/22/2023]
Abstract
Part of the lacrimal functional unit, the cornea protects the ocular surface from numerous environmental aggressions and xenobiotics. Toxicological evaluation of compounds remains a challenge due to complex interactions between corneal nerve endings and epithelial cells. To this day, models do not integrate the physiological specificity of corneal nerve endings and are insufficient for the detection of low toxic effects essential to anticipate Toxicity-Induced Dry Eye (TIDE). Using high-content imaging tool, we here characterize toxicity-induced cellular alterations using primary cultures of mouse trigeminal sensory neurons and corneal epithelial cells in a compartmentalized microfluidic chip. We validate this model through the analysis of benzalkonium chloride (BAC) toxicity, a well-known preservative in eyedrops, after a single (6h) or repeated (twice a day for 15 min over 5 days) topical 5.10-4% BAC applications on the corneal epithelial cells and nerve terminals. In combination with high-content image analysis, this advanced microfluidic protocol reveal specific and tiny changes in the epithelial cells and axonal network as well as in trigeminal cells, not directly exposed to BAC, with ATF3/6 stress markers and phospho-p44/42 cell activation marker. Altogether, this corneal neuroepithelial chip enables the evaluation of toxic effects of ocular xenobiotics, distinguishing the impact on corneal sensory innervation and epithelial cells. The combination of compartmentalized co-culture/high-content imaging/multiparameter analysis opens the way for the systematic analysis of toxicants but also neuroprotective compounds.
Collapse
Affiliation(s)
- Noémie Bonneau
- Sorbonne Université, INSERM, CNRS, IHU FOReSIGHT, Institut de la Vision, 17 rue Moreau, F-75012, Paris, France; HORUS PHARMA, F-06200 Nice, France
| | - Anaïs Potey
- Sorbonne Université, INSERM, CNRS, IHU FOReSIGHT, Institut de la Vision, 17 rue Moreau, F-75012, Paris, France
| | - Michael-Adrien Vitoux
- Sorbonne Université, INSERM, CNRS, IHU FOReSIGHT, Institut de la Vision, 17 rue Moreau, F-75012, Paris, France
| | - Romain Magny
- Sorbonne Université, INSERM, CNRS, IHU FOReSIGHT, Institut de la Vision, 17 rue Moreau, F-75012, Paris, France; UMR CNRS 8038 CiTCoM, Chimie Toxicologie Analytique et Cellulaire, Université de Paris, Faculté de Pharmacie, Paris, France
| | | | - Christophe Baudouin
- Sorbonne Université, INSERM, CNRS, IHU FOReSIGHT, Institut de la Vision, 17 rue Moreau, F-75012, Paris, France; Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, INSERM-DGOS CIC 1423, IHU FOReSIGHT, 28 rue de Charenton, F-75012, Paris, France; Université Versailles-Saint-Quentin-en-Yvelines, Hôpital Ambroise Paré, APHP, F-92100, Boulogne-Billancourt, France
| | - Jean-Michel Peyrin
- Neurosciences Paris Seine, UMR8246, Inserm U1130, IBPS, UPMC, Sorbonne Université, 4 Place Jussieu, F-75005, Paris, France.
| | - Françoise Brignole-Baudouin
- Sorbonne Université, INSERM, CNRS, IHU FOReSIGHT, Institut de la Vision, 17 rue Moreau, F-75012, Paris, France; Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, INSERM-DGOS CIC 1423, IHU FOReSIGHT, 28 rue de Charenton, F-75012, Paris, France; Université Paris Cité, Faculté de Pharmacie de Paris, F-75006, Paris, France.
| | - Annabelle Réaux-Le Goazigo
- Sorbonne Université, INSERM, CNRS, IHU FOReSIGHT, Institut de la Vision, 17 rue Moreau, F-75012, Paris, France.
| |
Collapse
|
4
|
Blood brain barrier-on-a-chip to model neurological diseases. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
5
|
Miny L, Maisonneuve BGC, Quadrio I, Honegger T. Modeling Neurodegenerative Diseases Using In Vitro Compartmentalized Microfluidic Devices. Front Bioeng Biotechnol 2022; 10:919646. [PMID: 35813998 PMCID: PMC9263267 DOI: 10.3389/fbioe.2022.919646] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/31/2022] [Indexed: 01/27/2023] Open
Abstract
The human brain is a complex organ composed of many different types of cells interconnected to create an organized system able to efficiently process information. Dysregulation of this delicately balanced system can lead to the development of neurological disorders, such as neurodegenerative diseases (NDD). To investigate the functionality of human brain physiology and pathophysiology, the scientific community has been generated various research models, from genetically modified animals to two- and three-dimensional cell culture for several decades. These models have, however, certain limitations that impede the precise study of pathophysiological features of neurodegeneration, thus hindering therapeutical research and drug development. Compartmentalized microfluidic devices provide in vitro minimalistic environments to accurately reproduce neural circuits allowing the characterization of the human central nervous system. Brain-on-chip (BoC) is allowing our capability to improve neurodegeneration models on the molecular and cellular mechanism aspects behind the progression of these troubles. This review aims to summarize and discuss the latest advancements of microfluidic models for the investigations of common neurodegenerative disorders, such as Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis.
Collapse
Affiliation(s)
- Louise Miny
- NETRI, Lyon, France
- BIORAN Team, Lyon Neuroscience Research Center, CNRS UMR 5292, INSERM U1028, Lyon 1 University, Bron, France
| | | | - Isabelle Quadrio
- BIORAN Team, Lyon Neuroscience Research Center, CNRS UMR 5292, INSERM U1028, Lyon 1 University, Bron, France
- Laboratory of Neurobiology and Neurogenetics, Department of Biochemistry and Molecular Biology, Lyon University Hospital, Bron, France
| | | |
Collapse
|
6
|
Amirifar L, Shamloo A, Nasiri R, de Barros NR, Wang ZZ, Unluturk BD, Libanori A, Ievglevskyi O, Diltemiz SE, Sances S, Balasingham I, Seidlits SK, Ashammakhi N. Brain-on-a-chip: Recent advances in design and techniques for microfluidic models of the brain in health and disease. Biomaterials 2022; 285:121531. [DOI: 10.1016/j.biomaterials.2022.121531] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 04/10/2022] [Accepted: 04/15/2022] [Indexed: 12/12/2022]
|
7
|
Wang Y, Gao L, Chen J, Li Q, Huo L, Wang Y, Wang H, Du J. Pharmacological Modulation of Nrf2/HO-1 Signaling Pathway as a Therapeutic Target of Parkinson's Disease. Front Pharmacol 2021; 12:757161. [PMID: 34887759 PMCID: PMC8650509 DOI: 10.3389/fphar.2021.757161] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/21/2021] [Indexed: 12/19/2022] Open
Abstract
Parkinson’s disease (PD) is a complex neurodegenerative disorder featuring both motor and nonmotor symptoms associated with a progressive loss of dopaminergic neurons in the substantia nigra pars compacta. Oxidative stress (OS) has been implicated in the pathogenesis of PD. Genetic and environmental factors can produce OS, which has been implicated as a core contributor to the initiation and progression of PD through the degeneration of dopaminergic neurons. The transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2) orchestrates activation of multiple protective genes, including heme oxygenase-1 (HO-1), which protects cells from OS. Nrf2 has also been shown to exert anti-inflammatory effects and modulate both mitochondrial function and biogenesis. Recently, a series of studies have reported that different bioactive compounds were shown to be able to activate Nrf2/antioxidant response element (ARE) and can ameliorate PD-associated neurotoxin, both in animal models and in tissue culture. In this review, we briefly overview the sources of OS and the association between OS and the pathogenesis of PD. Then, we provided a concise overview of Nrf2/ARE pathway and delineated the role played by activation of Nrf2/HO-1 in PD. At last, we expand our discussion to the neuroprotective effects of pharmacological modulation of Nrf2/HO-1 by bioactive compounds and the potential application of Nrf2 activators for the treatment of PD. This review suggests that pharmacological modulation of Nrf2/HO-1 signaling pathway by bioactive compounds is a therapeutic target of PD.
Collapse
Affiliation(s)
- Yumin Wang
- Department of Respiratory and Critical Care Medicine, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China
| | - Luyan Gao
- Department of Neurology, Tianjin Fourth Central Hospital, The Fourth Central Hospital Affiliated to Nankai University, The Fourth Central Clinical College, Tianjin Medical University, Tianjin, China
| | - Jichao Chen
- Department of Respiratory and Critical Care Medicine, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China
| | - Qiang Li
- Department of Neurology, The Affiliated Hospital of Chifeng University, Chifeng, China
| | - Liang Huo
- Department of Pediatric Neurology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yanchao Wang
- Department of Neurology, The Affiliated Hospital of Chifeng University, Chifeng, China
| | - Hongquan Wang
- Department of Neurology, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China
| | - Jichen Du
- Department of Neurology, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China
| |
Collapse
|
8
|
Parkinson's disease and the gut: Models of an emerging relationship. Acta Biomater 2021; 132:325-344. [PMID: 33857691 DOI: 10.1016/j.actbio.2021.03.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 03/25/2021] [Accepted: 03/30/2021] [Indexed: 12/17/2022]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disease characterized by a progressive loss of fine motor function that impacts 1-2 out of 1,000 people. PD occurs predominately late in life and lacks a definitive biomarker for early detection. Recent cross-disciplinary progress has implicated the gut as a potential origin of PD pathogenesis. The gut-origin hypothesis has motivated research on gut PD pathology and transmission to the brain, especially during the prodromal stage (10-20 years before motor symptom onset). Early findings have revealed several possible triggers for Lewy pathology - the pathological hallmark of PD - in the gut, suggesting that microbiome and epithelial interactions may play a greater than appreciated role. But the mechanisms driving Lewy pathology and gut-brain transmission in PD remain unknown. Development of artificial α-Synuclein aggregates (α-Syn preformed fibrils) and animal disease models have recapitulated features of PD progression, enabling for the first time, controlled investigation of the gut-origin hypothesis. However, the role of specific cells in PD transmission, such as neurons, remains limited and requires in vitro models for controlled evaluation and perturbation. Human cell populations, three-dimensional organoids, and microfluidics as discovery platforms inch us closer to improving existing treatment for patients by providing platforms for discovery and screening. This review includes a discussion of PD pathology, conventional treatments, in vivo and in vitro models, and future directions. STATEMENT OF SIGNIFICANCE: Parkinson's Disease remains a common neurodegenerative disease with palliative versus causal treatments. Recently, the gut-origin hypothesis, where Parkinson's disease is thought to originate and spread from the gut to the brain, has gained traction as a field of investigation. However, despite the wealth of studies and innovative approaches to accelerate the field, there remains a need for in vitro tools to enable fundamental biological understanding of disease progression, and compound screening and efficacy. In this review, we present a historical perspective of Parkinson's Disease pathogenesis, detection, and conventional therapy, animal and human models investigating the gut-origin hypothesis, in vitro models to enable controlled discovery, and future outlooks for this blossoming field.
Collapse
|
9
|
Jahagirdar D, Bangde P, Jain R, Dandekar P. Degenerative disease-on-a-chip: Developing microfluidic models for rapid availability of newer therapies. Biotechnol J 2021; 16:e2100154. [PMID: 34390543 DOI: 10.1002/biot.202100154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 11/09/2022]
Abstract
BACKGROUND Understanding the pathophysiology of degenerative diseases pertaining to nervous system, ocular region, bone/cartilage and muscle are still being comprehended, thus delaying the availability of targeted therapies. PURPOSE AND SCOPE Newer micro-physiological systems (organ-on-chip technology) involves development of more sophisticated devices, modelling a range of in vitro human tissues and an array of models for diseased conditions. These models expand opportunities for high throughput screening (HTS) of drugs and are likely to be rapid and cost-effective, thus reducing extensive usage of animal models. CONCLUSION Through this review article, we aim to present an overview of the degenerative disease models that are presently being developed using microfluidic platforms with the aim of mimicking in vivo tissue physiology and micro-architecture. The manuscript provides an overview of the degenerative disease models and their potential for testing and screening of possible biotherapeutic molecules and drugs. It highlights the perspective of the regulatory bodies with respect to the established-on chip models and thereby enhancing its translational potential. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Devashree Jahagirdar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, 400019, India
| | - Prachi Bangde
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, 400019, India
| | - Ratnesh Jain
- Department of Chemical Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, 400019, India
| | - Prajakta Dandekar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, 400019, India
| |
Collapse
|
10
|
Kumar D, Baligar P, Srivastav R, Narad P, Raj S, Tandon C, Tandon S. Stem Cell Based Preclinical Drug Development and Toxicity Prediction. Curr Pharm Des 2021; 27:2237-2251. [PMID: 33076801 DOI: 10.2174/1381612826666201019104712] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/22/2020] [Indexed: 01/09/2023]
Abstract
Stem cell based toxicity prediction plays a very important role in the development of the drug. Unexpected adverse effects of the drugs during clinical trials are a major reason for the termination or withdrawal of drugs. Methods for predicting toxicity employ in vitro as well as in vivo models; however, the major drawback seen in the data derived from these animal models is the lack of extrapolation, owing to interspecies variations. Due to these limitations, researchers have been striving to develop more robust drug screening platforms based on stem cells. The application of stem cells based toxicity testing has opened up robust methods to study the impact of new chemical entities on not only specific cell types, but also organs. Pluripotent stem cells, as well as cells derived from them, can be evaluated for modulation of cell function in response to drugs. Moreover, the combination of state-of-the -art techniques such as tissue engineering and microfluidics to fabricate organ- on-a-chip, has led to assays which are amenable to high throughput screening to understand the adverse and toxic effects of chemicals and drugs. This review summarizes the important aspects of the establishment of the embryonic stem cell test (EST), use of stem cells, pluripotent, induced pluripotent stem cells and organoids for toxicity prediction and drug development.
Collapse
Affiliation(s)
- Dhruv Kumar
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University, Noida, Uttar Pradesh 201313, India
| | - Prakash Baligar
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University, Noida, Uttar Pradesh 201313, India
| | - Rajpal Srivastav
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh 201313, India
| | - Priyanka Narad
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh 201313, India
| | - Sibi Raj
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University, Noida, Uttar Pradesh 201313, India
| | - Chanderdeep Tandon
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh 201313, India
| | - Simran Tandon
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University, Noida, Uttar Pradesh 201313, India
| |
Collapse
|
11
|
De Chiara F, Ferret-Miñana A, Ramón-Azcón J. The Synergy between Organ-on-a-Chip and Artificial Intelligence for the Study of NAFLD: From Basic Science to Clinical Research. Biomedicines 2021; 9:248. [PMID: 33801289 PMCID: PMC7999375 DOI: 10.3390/biomedicines9030248] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/20/2021] [Accepted: 02/25/2021] [Indexed: 12/15/2022] Open
Abstract
Non-alcoholic fatty liver affects about 25% of global adult population. On the long-term, it is associated with extra-hepatic compliances, multiorgan failure, and death. Various invasive and non-invasive methods are employed for its diagnosis such as liver biopsies, CT scan, MRI, and numerous scoring systems. However, the lack of accuracy and reproducibility represents one of the biggest limitations of evaluating the effectiveness of drug candidates in clinical trials. Organ-on-chips (OOC) are emerging as a cost-effective tool to reproduce in vitro the main NAFLD's pathogenic features for drug screening purposes. Those platforms have reached a high degree of complexity that generate an unprecedented amount of both structured and unstructured data that outpaced our capacity to analyze the results. The addition of artificial intelligence (AI) layer for data analysis and interpretation enables those platforms to reach their full potential. Furthermore, the use of them do not require any ethic and legal regulation. In this review, we discuss the synergy between OOC and AI as one of the most promising ways to unveil potential therapeutic targets as well as the complex mechanism(s) underlying NAFLD.
Collapse
Affiliation(s)
- Francesco De Chiara
- Biosensors for Bioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri I Reixac 10–12, 08028 Barcelona, Spain; (A.F.-M.); (J.R.-A.)
| | - Ainhoa Ferret-Miñana
- Biosensors for Bioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri I Reixac 10–12, 08028 Barcelona, Spain; (A.F.-M.); (J.R.-A.)
| | - Javier Ramón-Azcón
- Biosensors for Bioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri I Reixac 10–12, 08028 Barcelona, Spain; (A.F.-M.); (J.R.-A.)
- ICREA-Institució Catalana de Recerca i Estudis Avançats, 08010 Barcelona, Spain
| |
Collapse
|
12
|
Holloway PM, Willaime-Morawek S, Siow R, Barber M, Owens RM, Sharma AD, Rowan W, Hill E, Zagnoni M. Advances in microfluidic in vitro systems for neurological disease modeling. J Neurosci Res 2021; 99:1276-1307. [PMID: 33583054 DOI: 10.1002/jnr.24794] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/21/2020] [Accepted: 12/19/2020] [Indexed: 12/19/2022]
Abstract
Neurological disorders are the leading cause of disability and the second largest cause of death worldwide. Despite significant research efforts, neurology remains one of the most failure-prone areas of drug development. The complexity of the human brain, boundaries to examining the brain directly in vivo, and the significant evolutionary gap between animal models and humans, all serve to hamper translational success. Recent advances in microfluidic in vitro models have provided new opportunities to study human cells with enhanced physiological relevance. The ability to precisely micro-engineer cell-scale architecture, tailoring form and function, has allowed for detailed dissection of cell biology using microphysiological systems (MPS) of varying complexities from single cell systems to "Organ-on-chip" models. Simplified neuronal networks have allowed for unique insights into neuronal transport and neurogenesis, while more complex 3D heterotypic cellular models such as neurovascular unit mimetics and "Organ-on-chip" systems have enabled new understanding of metabolic coupling and blood-brain barrier transport. These systems are now being developed beyond MPS toward disease specific micro-pathophysiological systems, moving from "Organ-on-chip" to "Disease-on-chip." This review gives an outline of current state of the art in microfluidic technologies for neurological disease research, discussing the challenges and limitations while highlighting the benefits and potential of integrating technologies. We provide examples of where such toolsets have enabled novel insights and how these technologies may empower future investigation into neurological diseases.
Collapse
Affiliation(s)
- Paul M Holloway
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | | | - Richard Siow
- King's British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine & Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Melissa Barber
- King's British Heart Foundation Centre of Research Excellence, School of Cardiovascular Medicine & Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Róisín M Owens
- Department Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
| | - Anup D Sharma
- New Orleans BioInnovation Center, AxoSim Inc., New Orleans, LA, USA
| | - Wendy Rowan
- Novel Human Genetics Research Unit, GSK R&D, Stevenage, UK
| | - Eric Hill
- School of Life and Health sciences, Aston University, Birmingham, UK
| | - Michele Zagnoni
- Electronic and Electrical Engineering, University of Strathclyde, Glasgow, UK
| |
Collapse
|
13
|
Abstract
Engineered human mini-brains, made possible by knowledge from the convergence of precision microengineering and cell biology, permit systematic studies of complex neurological processes and of pathogenesis beyond what can be done with animal models. By culturing human brain cells with physiological microenvironmental cues, human mini-brain models reconstitute the arrangement of structural tissues and some of the complex biological functions of the human brain. In this Review, we highlight the most significant developments that have led to microphysiological human mini-brain models. We introduce the history of mini-brain development, review methods for creating mini-brain models in static conditions, and discuss relevant state-of-the-art dynamic cell-culture systems. We also review human mini-brain models that reconstruct aspects of major neurological disorders under static or dynamic conditions. Engineered human mini-brains will contribute to advancing the study of the physiology and aetiology of neurological disorders, and to the development of personalized medicines for them.
Collapse
|
14
|
Patient-Derived Induced Pluripotent Stem Cell-Based Models in Parkinson's Disease for Drug Identification. Int J Mol Sci 2020; 21:ijms21197113. [PMID: 32993172 PMCID: PMC7582359 DOI: 10.3390/ijms21197113] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 12/13/2022] Open
Abstract
Parkinson's disease (PD) is a common progressive neurodegenerative disorder characterized by loss of striatal-projecting dopaminergic neurons of the ventral forebrain, resulting in motor and cognitive deficits. Despite extensive efforts in understanding PD pathogenesis, no disease-modifying drugs exist. Recent advances in cell reprogramming technologies have facilitated the generation of patient-derived models for sporadic or familial PD and the identification of early, potentially triggering, pathological phenotypes while they provide amenable systems for drug discovery. Emerging developments highlight the enhanced potential of using more sophisticated cellular systems, including neuronal and glial co-cultures as well as three-dimensional systems that better simulate the human pathophysiology. In combination with high-throughput high-content screening technologies, these approaches open new perspectives for the identification of disease-modifying compounds. In this review, we discuss current advances and the challenges ahead in the use of patient-derived induced pluripotent stem cells for drug discovery in PD. We address new concepts implicating non-neuronal cells in disease pathogenesis and highlight the necessity for functional assays, such as calcium imaging and multi-electrode array recordings, to predict drug efficacy. Finally, we argue that artificial intelligence technologies will be pivotal for analysis of the large and complex data sets obtained, becoming game-changers in the process of drug discovery.
Collapse
|
15
|
Tang Q, Yang X, Xuan C, Wu K, Lai C, Shi X. Generation of microfluidic gradients and their effects on cells behaviours. Biodes Manuf 2020. [DOI: 10.1007/s42242-020-00093-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
16
|
Miccoli B, Braeken D, Li YCE. Brain-on-a-chip Devices for Drug Screening and Disease Modeling Applications. Curr Pharm Des 2019; 24:5419-5436. [PMID: 30806304 DOI: 10.2174/1381612825666190220161254] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 02/12/2019] [Indexed: 01/06/2023]
Abstract
Neurodegenerative disorders are related to the progressive functional loss of the brain, often connected to emotional and physical disability and, ultimately, to death. These disorders, strongly connected to the aging process, are becoming increasingly more relevant due to the increase of life expectancy. Current pharmaceutical treatments poorly tackle these diseases, mainly acting only on their symptomology. One of the main reasons of this is the current drug development process, which is not only expensive and time-consuming but, also, still strongly relies on animal models at the preclinical stage. Organ-on-a-chip platforms have the potential to strongly impact and improve the drug screening process by recreating in vitro the functionality of human organs. Patient-derived neurons from different regions of the brain can be directly grown and differentiated on a brain-on-a-chip device where the disease development, progression and pharmacological treatments can be studied and monitored in real time. The model reliability is strongly improved by using human-derived cells, more relevant than animal models for pharmacological screening and disease monitoring. The selected cells will be then capable of proliferating and organizing themselves in the in vivo environment thanks to the device architecture, materials selection and bio-chemical functionalization. In this review, we start by presenting the fundamental strategies adopted for brain-on-a-chip devices fabrication including e.g., photolithography, micromachining and 3D printing technology. Then, we discuss the state-of-theart of brain-on-a-chip platforms including their role in the study of the functional architecture of the brain e.g., blood-brain barrier, or of the most diffuse neurodegenerative diseases like Alzheimer's and Parkinson's. At last, the current limitations and future perspectives of this approach for the development of new drugs and neurodegenerative diseases modeling will be discussed.
Collapse
Affiliation(s)
- Beatrice Miccoli
- Imec, Department of Life Sciences and Imaging, 3001 Heverlee, Belgium.,Katholieke Universiteit Leuven, 3000 Leuven, Belgium
| | - Dries Braeken
- Imec, Department of Life Sciences and Imaging, 3001 Heverlee, Belgium
| | - Yi-Chen Ethan Li
- Department of Chemical Engineering, Feng Chia University, Taichung City, Taiwan
| |
Collapse
|
17
|
Sun J, Warden AR, Ding X. Recent advances in microfluidics for drug screening. BIOMICROFLUIDICS 2019; 13:061503. [PMID: 31768197 PMCID: PMC6870548 DOI: 10.1063/1.5121200] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/07/2019] [Indexed: 05/03/2023]
Abstract
With ever increasing drug resistance and emergence of new diseases, demand for new drug development is at an unprecedented urgency. This fact has led to extensive recent efforts to develop new drugs and novel techniques for efficient drug screening. However, new drug development is commonly hindered by cost and time span. Thus, developing more accessible, cost-effective methods for drug screening is necessary. Compared with conventional drug screening methods, a microfluidic-based system has superior advantages in sample consumption, reaction time, and cost of the operation. In this paper, the advantages of microfluidic technology in drug screening as well as the critical factors for device design are described. The strategies and applications of microfluidics for drug screening are reviewed. Moreover, current limitations and future prospects for a drug screening microdevice are also discussed.
Collapse
|
18
|
Parittotokkaporn S, Dravid A, Bansal M, Aqrawe Z, Svirskis D, Suresh V, O’Carroll SJ. Make it simple: long-term stable gradient generation in a microfluidic microdevice. Biomed Microdevices 2019; 21:77. [DOI: 10.1007/s10544-019-0427-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
19
|
Kankala RK, Wang SB, Chen AZ. Microengineered Organ-on-a-chip Platforms towards Personalized Medicine. Curr Pharm Des 2019; 24:5354-5366. [DOI: 10.2174/1381612825666190222143542] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 02/12/2019] [Indexed: 11/22/2022]
Abstract
Current preclinical drug evaluation strategies that are explored to predict the pharmacological parameters,
as well as toxicological issues, utilize traditional oversimplified cell cultures and animal models. However,
these traditional approaches are time-consuming, and cannot reproduce the functions of the complex biological
tissue architectures. On the other hand, the obtained data from animal models cannot be precisely extrapolated to
humans because it sometimes results in the distinct safe starting doses for clinical trials due to vast differences in
their genomes. To address these limitations, the microengineered, biomimetic organ-on-a-chip platforms fabricated
using advanced materials that are interconnected using the microfluidic circuits, can stanchly reiterate or
mimic the complex tissue-organ level structures including the cellular architecture and physiology, compartmentalization
and interconnectivity of human organ platforms. These innovative and cost-effective systems potentially
enable the prediction of the responses toward pharmaceutical compounds and remarkable advances in
materials and microfluidics technology, which can rapidly progress the drug development process. In this review,
we emphasize the integration of microfluidic models with the 3D simulations from tissue engineering to fabricate
organ-on-a-chip platforms, which explicitly fulfill the demand of creating the robust models for preclinical testing
of drugs. At first, we give a brief overview of the limitations associated with the current drug development pipeline
that includes drug screening methods, in vitro molecular assays, cell culture platforms and in vivo models.
Further, we discuss various organ-on-a-chip platforms, highlighting their benefits and performance in the preclinical
stages. Next, we aim to emphasize their current applications toward pharmaceutical benefits including the
drug screening as well as toxicity testing, and advances in personalized precision medicine as well as potential
challenges for their commercialization. We finally recapitulate with the lessons learned and the outlook highlighting
the future directions for accelerating the clinical translation of delivery systems.
Collapse
Affiliation(s)
- Ranjith Kumar Kankala
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen 361021, China
| | - Shi-Bin Wang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Ai-Zheng Chen
- Fujian Provincial Key Laboratory of Biochemical Technology (Huaqiao University), Xiamen 361021, China
| |
Collapse
|
20
|
Ahadian S, Civitarese R, Bannerman D, Mohammadi MH, Lu R, Wang E, Davenport-Huyer L, Lai B, Zhang B, Zhao Y, Mandla S, Korolj A, Radisic M. Organ-On-A-Chip Platforms: A Convergence of Advanced Materials, Cells, and Microscale Technologies. Adv Healthc Mater 2018; 7. [PMID: 29034591 DOI: 10.1002/adhm.201700506] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/15/2017] [Indexed: 12/11/2022]
Abstract
Significant advances in biomaterials, stem cell biology, and microscale technologies have enabled the fabrication of biologically relevant tissues and organs. Such tissues and organs, referred to as organ-on-a-chip (OOC) platforms, have emerged as a powerful tool in tissue analysis and disease modeling for biological and pharmacological applications. A variety of biomaterials are used in tissue fabrication providing multiple biological, structural, and mechanical cues in the regulation of cell behavior and tissue morphogenesis. Cells derived from humans enable the fabrication of personalized OOC platforms. Microscale technologies are specifically helpful in providing physiological microenvironments for tissues and organs. In this review, biomaterials, cells, and microscale technologies are described as essential components to construct OOC platforms. The latest developments in OOC platforms (e.g., liver, skeletal muscle, cardiac, cancer, lung, skin, bone, and brain) are then discussed as functional tools in simulating human physiology and metabolism. Future perspectives and major challenges in the development of OOC platforms toward accelerating clinical studies of drug discovery are finally highlighted.
Collapse
Affiliation(s)
- Samad Ahadian
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Robert Civitarese
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Dawn Bannerman
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Mohammad Hossein Mohammadi
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Rick Lu
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Erika Wang
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Locke Davenport-Huyer
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Ben Lai
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Boyang Zhang
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Yimu Zhao
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Serena Mandla
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Anastasia Korolj
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Milica Radisic
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| |
Collapse
|
21
|
Fan J, Villarreal F, Weyers B, Ding Y, Tseng KH, Li J, Li B, Tan C, Pan T. Multi-dimensional studies of synthetic genetic promoters enabled by microfluidic impact printing. LAB ON A CHIP 2017; 17:2198-2207. [PMID: 28613297 PMCID: PMC5572659 DOI: 10.1039/c7lc00382j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Natural genetic promoters are regulated by multiple cis and trans regulatory factors. For quantitative studies of these promoters, the concentration of only a single factor is typically varied to obtain the dose response or transfer function of the promoters with respect to the factor. Such design of experiments has limited our ability to understand quantitative, combinatorial interactions between multiple regulatory factors at promoters. This limitation is primarily due to the intractable number of experimental combinations that arise from multifactorial design of experiments. To overcome this major limitation, we integrate impact printing and cell-free systems to enable multi-dimensional studies of genetic promoters. We first present a gradient printing system which comprises parallel piezoelectric cantilever beams as a scalable actuator array to generate droplets with tunable volumes in the range of 100 pL-10 nL, which facilitates highly accurate direct dilutions in the range of 1-10 000-fold in a 1 μL drop. Next, we apply this technology to study interactions between three regulatory factors at a synthetic genetic promoter. Finally, a mathematical model of gene regulatory modules is established using the multi-parametric and multi-dimensional data. Our work creates a new frontier in the use of cell-free systems and droplet printing for multi-dimensional studies of synthetic genetic constructs.
Collapse
Affiliation(s)
- Jinzhen Fan
- Department of Biomechanical Engineering, University of California, Davis, 95616, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Aziz AUR, Geng C, Fu M, Yu X, Qin K, Liu B. The Role of Microfluidics for Organ on Chip Simulations. Bioengineering (Basel) 2017; 4:E39. [PMID: 28952518 PMCID: PMC5590458 DOI: 10.3390/bioengineering4020039] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 05/01/2017] [Accepted: 05/02/2017] [Indexed: 12/19/2022] Open
Abstract
A multichannel three-dimensional chip of a microfluidic cell culture which enables the simulation of organs is called an "organ on a chip" (OC). With the integration of many other technologies, OCs have been mimicking organs, substituting animal models, and diminishing the time and cost of experiments which is better than the preceding conventional in vitro models, which make them imperative tools for finding functional properties, pathological states, and developmental studies of organs. In this review, recent progress regarding microfluidic devices and their applications in cell cultures is discussed to explain the advantages and limitations of these systems. Microfluidics is not a solution but only an approach to create a controlled environment, however, other supporting technologies are needed, depending upon what is intended to be achieved. Microfluidic platforms can be integrated with additional technologies to enhance the organ on chip simulations. Besides, new directions and areas are mentioned for interested researchers in this field, and future challenges regarding the simulation of OCs are also discussed, which will make microfluidics more accurate and beneficial for biological applications.
Collapse
Affiliation(s)
- Aziz Ur Rehman Aziz
- Department of Biomedical Engineering, Dalian University of Technology, Dalian 116024, Liaoning Province, China.
| | - Chunyang Geng
- Department of Biomedical Engineering, Dalian University of Technology, Dalian 116024, Liaoning Province, China.
| | - Mengjie Fu
- Dalian Institute of Maternal and Child Health Care. Dalian 116024, Liaoning Province, China.
| | - Xiaohui Yu
- Dalian Institute of Maternal and Child Health Care. Dalian 116024, Liaoning Province, China.
| | - Kairong Qin
- Department of Biomedical Engineering, Dalian University of Technology, Dalian 116024, Liaoning Province, China.
| | - Bo Liu
- Department of Biomedical Engineering, Dalian University of Technology, Dalian 116024, Liaoning Province, China.
| |
Collapse
|
23
|
|
24
|
Hong B, Xue P, Wu Y, Bao J, Chuah YJ, Kang Y. A concentration gradient generator on a paper-based microfluidic chip coupled with cell culture microarray for high-throughput drug screening. Biomed Microdevices 2016; 18:21. [DOI: 10.1007/s10544-016-0054-2] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
25
|
Eribol P, Uguz AK, Ulgen KO. Screening applications in drug discovery based on microfluidic technology. BIOMICROFLUIDICS 2016; 10:011502. [PMID: 26865904 PMCID: PMC4733079 DOI: 10.1063/1.4940886] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 01/14/2016] [Indexed: 05/03/2023]
Abstract
Microfluidics has been the focus of interest for the last two decades for all the advantages such as low chemical consumption, reduced analysis time, high throughput, better control of mass and heat transfer, downsizing a bench-top laboratory to a chip, i.e., lab-on-a-chip, and many others it has offered. Microfluidic technology quickly found applications in the pharmaceutical industry, which demands working with leading edge scientific and technological breakthroughs, as drug screening and commercialization are very long and expensive processes and require many tests due to unpredictable results. This review paper is on drug candidate screening methods with microfluidic technology and focuses specifically on fabrication techniques and materials for the microchip, types of flow such as continuous or discrete and their advantages, determination of kinetic parameters and their comparison with conventional systems, assessment of toxicities and cytotoxicities, concentration generations for high throughput, and the computational methods that were employed. An important conclusion of this review is that even though microfluidic technology has been in this field for around 20 years there is still room for research and development, as this cutting edge technology requires ingenuity to design and find solutions for each individual case. Recent extensions of these microsystems are microengineered organs-on-chips and organ arrays.
Collapse
Affiliation(s)
- P Eribol
- Department of Chemical Engineering, Boğaziçi University , 34342 Bebek, Istanbul, Turkey
| | - A K Uguz
- Department of Chemical Engineering, Boğaziçi University , 34342 Bebek, Istanbul, Turkey
| | - K O Ulgen
- Department of Chemical Engineering, Boğaziçi University , 34342 Bebek, Istanbul, Turkey
| |
Collapse
|
26
|
Accardo A, Shalabaeva V, Di Cola E, Burghammer M, Krahne R, Riekel C, Dante S. Superhydrophobic Surfaces Boost Fibril Self-Assembly of Amyloid β Peptides. ACS APPLIED MATERIALS & INTERFACES 2015; 7:20875-20884. [PMID: 26306595 DOI: 10.1021/acsami.5b06219] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Amyloid β (Aβ) peptides are the main constituents of Alzheimer's amyloid plaques in the brain. Here we report how the unique microfluidic flows exerted by droplets sitting on superhydrophobic surfaces can influence the aggregation mechanisms of several Aβ fragments by boosting their fibril self-assembly. Aβ(25-35), Aβ(1-40), and Aβ(12-28) were dried both on flat hydrophilic surfaces (contact angle (CA) = 37.3°) and on nanostructured superhydrophobic ones (CA = 175.8°). By embedding nanoroughened surfaces on top of highly X-ray transparent Si3N4 membranes, it was possible to probe the solid residues by raster-scan synchrotron radiation X-ray microdiffraction (μXRD). As compared to residues obtained on flat Si3N4 membranes, a general enhancement of fibrillar material was detected for all Aβ fragments dried on superhydrophobic surfaces, with a particular emphasis on the shorter ones. Indeed, both Aβ(25-35) and Aβ(12-28) showed a marked crystalline cross-β phase with varying fiber textures. The homogeneous evaporation rate provided by these nanostructured supports, and the possibility to use transparent membranes, can open a wide range of in situ X-ray and spectroscopic characterizations of amyloidal peptides involved in neurodegenerative diseases and for the fabrication of amyloid-based nanodevices.
Collapse
Affiliation(s)
- Angelo Accardo
- Istituto Italiano di Tecnologia , Via Morego 30, Genova 16163, Italy
| | | | - Emanuela Di Cola
- The European Synchrotron, CS40220 , 38043 Cedex 9 Grenoble, France
| | - Manfred Burghammer
- The European Synchrotron, CS40220 , 38043 Cedex 9 Grenoble, France
- Department of Analytical Chemistry, Ghent University , Krijgslaan 281, Ghent 9000, Belgium
| | - Roman Krahne
- Istituto Italiano di Tecnologia , Via Morego 30, Genova 16163, Italy
| | - Christian Riekel
- The European Synchrotron, CS40220 , 38043 Cedex 9 Grenoble, France
| | - Silvia Dante
- Istituto Italiano di Tecnologia , Via Morego 30, Genova 16163, Italy
| |
Collapse
|
27
|
Bhatia SN, Ingber DE. Microfluidic organs-on-chips. Nat Biotechnol 2015; 32:760-72. [PMID: 25093883 DOI: 10.1038/nbt.2989] [Citation(s) in RCA: 1895] [Impact Index Per Article: 210.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 07/10/2014] [Indexed: 02/07/2023]
Abstract
An organ-on-a-chip is a microfluidic cell culture device created with microchip manufacturing methods that contains continuously perfused chambers inhabited by living cells arranged to simulate tissue- and organ-level physiology. By recapitulating the multicellular architectures, tissue-tissue interfaces, physicochemical microenvironments and vascular perfusion of the body, these devices produce levels of tissue and organ functionality not possible with conventional 2D or 3D culture systems. They also enable high-resolution, real-time imaging and in vitro analysis of biochemical, genetic and metabolic activities of living cells in a functional tissue and organ context. This technology has great potential to advance the study of tissue development, organ physiology and disease etiology. In the context of drug discovery and development, it should be especially valuable for the study of molecular mechanisms of action, prioritization of lead candidates, toxicity testing and biomarker identification.
Collapse
Affiliation(s)
- Sangeeta N Bhatia
- 1] Department of Electrical Engineering &Computer Science, Koch Institute and Institute for Medical Engineering and Science, Massachusetts Institute of Technology and Broad Institute, Cambridge, Massachusetts, USA. [2] Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Donald E Ingber
- 1] Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts, USA. [2] Vascular Biology Program, Departments of Pathology &Surgery, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA. [3] School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, USA
| |
Collapse
|
28
|
Ahadian S, Ramón-Azcón J, Estili M, Obregón R, Shiku H, Matsue T. Facile and rapid generation of 3D chemical gradients within hydrogels for high-throughput drug screening applications. Biosens Bioelectron 2014; 59:166-73. [PMID: 24727602 DOI: 10.1016/j.bios.2014.03.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 03/09/2014] [Accepted: 03/12/2014] [Indexed: 11/29/2022]
Abstract
We propose a novel application of dielectrophoresis (DEP) to make three-dimensional (3D) methacrylated gelatin (GelMA) hydrogels with gradients of micro- and nanoparticles. DEP forces were able to manipulate micro- and nanoparticles of different sizes and materials (i.e., C2C12 myoblasts, polystyrene beads, gold microparticles, and carbon nanotubes) within GelMA hydrogels in a rapid and facile way and create 3D gradients of these particles in a microchamber. Immobilization of drugs, such as fluorescein isothiocyanate-dextran (FITC-dextran) and 6-hydroxydopamine (6-OHDA), on gold microparticles allowed us to investigate the high-throughput release of these drugs from GelMA-gold microparticle gradient systems. The latter gradient constructs were incubated with C2C12 myoblasts for 24h to examine the cell viability through the release of 6-OHDA. The drug was released from the microparticles in a gradient manner, inducing a cell viability gradient. This novel approach to create 3D chemical gradients within hydrogels is scalable to any arbitrary length scale. It is useful for making anisotropic biomimetic materials and high-throughput platforms to investigate cell-microenvironment interactions in a rapid, simple, cost-effective, and reproducible manner.
Collapse
Affiliation(s)
- Samad Ahadian
- WPI-Advanced Institute for Materials Research, Tohoku University, P. O. Box 980-8577, Sendai, Japan
| | - Javier Ramón-Azcón
- WPI-Advanced Institute for Materials Research, Tohoku University, P. O. Box 980-8577, Sendai, Japan.
| | - Mehdi Estili
- International Center for Young Scientists (ICYS), National Institute for Materials Science (NIMS), Tsukuba 305-0047, Japan
| | - Raquel Obregón
- Graduate School of Environmental Studies, Tohoku University, P. O. Box 980-8579, Sendai, Japan
| | - Hitoshi Shiku
- Graduate School of Environmental Studies, Tohoku University, P. O. Box 980-8579, Sendai, Japan
| | - Tomokazu Matsue
- WPI-Advanced Institute for Materials Research, Tohoku University, P. O. Box 980-8577, Sendai, Japan; Graduate School of Environmental Studies, Tohoku University, P. O. Box 980-8579, Sendai, Japan.
| |
Collapse
|
29
|
Shi X, Ostrovidov S, Shu Y, Liang X, Nakajima K, Wu H, Khademhosseini A. Microfluidic generation of polydopamine gradients on hydrophobic surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:832-8. [PMID: 24358938 DOI: 10.1021/la4041216] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Engineered surface-bound molecular gradients are of great importance for a range of biological applications. In this paper, we fabricated a polydopamine gradient on a hydrophobic surface. A microfluidic device was used to generate a covalently conjugated gradient of polydopamine (PDA), which changed the wettabilty and the surface energy of the substrate. The gradient was subsequently used to enable the spatial deposition of adhesive proteins on the surface. When seeded with human adipose mesenchymal stem cells, the PDA-graded surface induced a gradient of cell adhesion and spreading. The PDA gradient developed in this study is a promising tool for controlling cellular behavior and may be useful in various biological applications.
Collapse
Affiliation(s)
- Xuetao Shi
- WPI-Advanced Institute for Materials Research, Tohoku University , Sendai 980-8578, Japan
| | | | | | | | | | | | | |
Collapse
|
30
|
Huang H, Jiang L, Li S, Deng J, Li Y, Yao J, Li B, Zheng J. Using microfluidic chip to form brain-derived neurotrophic factor concentration gradient for studying neuron axon guidance. BIOMICROFLUIDICS 2014; 8:014108. [PMID: 24660043 PMCID: PMC3945791 DOI: 10.1063/1.4864235] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 01/24/2014] [Indexed: 05/29/2023]
Abstract
Molecular gradients play a significant role in regulating biological and pathological processes. Although conventional gradient-generators have been used for studying chemotaxis and axon guidance, there are still many limitations, including the inability to maintain stable tempo-spatial gradients and the lack of the cell monitoring in a real-time manner. To overcome these shortcomings, microfluidic devices have been developed. In this study, we developed a microfluidic gradient device for regulating neuron axon guidance. A microfluidic device enables the generation of Brain-derived neurotrophic factor (BDNF) gradient profiles in a temporal and spatial manner. We test the effect of the gradient profiles on axon guidance, in the BDNF concentration gradient axon towards the high concentration gradient. This microfluidic gradient device could be used as a powerful tool for cell biology research.
Collapse
Affiliation(s)
- Hui Huang
- Department of Clinical Laboratory Science, College of Medical Laboratory, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Lili Jiang
- Department of Clinical Laboratory Science, College of Medical Laboratory, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Shu Li
- Department of Microbiology, College of Basic Medical Science, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Jun Deng
- Department of Clinical Laboratory Science, College of Medical Laboratory, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Yan Li
- Department of Clinical Laboratory Science, College of Medical Laboratory, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Jie Yao
- Department of Clinical Laboratory Science, College of Medical Laboratory, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Biyuan Li
- Department of Clinical Laboratory Science, College of Medical Laboratory, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| | - Junsong Zheng
- Department of Clinical Laboratory Science, College of Medical Laboratory, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing 400038, China
| |
Collapse
|
31
|
Almodóvar J, Crouzier T, Selimović Š, Boudou T, Khademhosseini A, Picart C. Gradients of physical and biochemical cues on polyelectrolyte multilayer films generated via microfluidics. LAB ON A CHIP 2013; 13:1562-70. [PMID: 23440074 PMCID: PMC4155072 DOI: 10.1039/c3lc41407h] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The cell microenvironment is a complex and anisotropic matrix composed of a number of physical and biochemical cues that control cellular processes. A current challenge in biomaterials is the engineering of biomimetic materials which present spatially controlled physical and biochemical cues. The layer-by-layer assembly of polyelectrolyte multilayers (PEM) has been demonstrated to be a promising candidate for a biomaterial mimicking the native extracellular matrix. In this work, gradients of biochemical and physical cues were generated on PEM films composed of hyaluronan (HA) and poly(l-lysine) (PLL) using a microfluidic device. As a proof of concept, four different types of surface concentration gradients adsorbed onto the films were generated. These included surface concentration gradients of fluorescent PLL, fluorescent microbeads, a cross-linker, and one consisting of a polyelectrolyte grafted with a cell adhesive peptide. In all cases, reproducible centimeter-long linear gradients were obtained. Fluorescence microscopy, Fourier transform infrared spectroscopy and atomic force microscopy were used to characterize these gradients. Cell responses to the stiffness gradient and to the peptide gradient were studied. Pre-osteoblastic cells were found to adhere and spread more along the stiffness gradient, which varied linearly from 200 kPa-600 kPa. Myoblast cell spreading also increased throughout the length of the increasing RGD-peptide gradient. This work demonstrates a simple method to modify PEM films with concentration gradients of non-covalently bound biomolecules and with gradients in stiffness. These results highlight the potential of this technique to efficiently and quickly determine the optimal biochemical and mechanical cues necessary for specific cellular processes.
Collapse
Affiliation(s)
- Jorge Almodóvar
- LMGP, UMR 5628, CNRS and Grenoble Institute of Technology, MINATEC, 3 parvis Louis Néel, 38016, Grenoble, France
| | - Thomas Crouzier
- LMGP, UMR 5628, CNRS and Grenoble Institute of Technology, MINATEC, 3 parvis Louis Néel, 38016, Grenoble, France
| | - Šeila Selimović
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Thomas Boudou
- LMGP, UMR 5628, CNRS and Grenoble Institute of Technology, MINATEC, 3 parvis Louis Néel, 38016, Grenoble, France
| | - Ali Khademhosseini
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Catherine Picart
- LMGP, UMR 5628, CNRS and Grenoble Institute of Technology, MINATEC, 3 parvis Louis Néel, 38016, Grenoble, France
| |
Collapse
|
32
|
Ahmed D, Chan CY, Lin SCS, Muddana HS, Nama N, Benkovic SJ, Huang TJ. Tunable, pulsatile chemical gradient generation via acoustically driven oscillating bubbles. LAB ON A CHIP 2013; 13:328-31. [PMID: 23254861 PMCID: PMC3991780 DOI: 10.1039/c2lc40923b] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
We present a novel concept of generating both static and pulsatile chemical gradients using acoustically activated bubbles designed in a ladder-like arrangement. Furthermore, by regulating the amplitude of the bubble oscillation, we demonstrate that the chemical gradient profiles can be effectively tuned.
Collapse
Affiliation(s)
- Daniel Ahmed
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Chung Yu Chan
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Sz-Chin Steven Lin
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Hari S. Muddana
- Department of Bioengineering, The Pennsylvania State University, University Park, Pennsylvania, 16802 USA
| | - Nitesh Nama
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Stephen J. Benkovic
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania, 16802 USA
| | - Tony Jun Huang
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Bioengineering, The Pennsylvania State University, University Park, Pennsylvania, 16802 USA
| |
Collapse
|
33
|
Gezielte dreidimensionale Zellausrichtung und -elongation in artifiziellen Geweben. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2012. [DOI: 10.1007/s00398-012-0924-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
34
|
Rosa P, Tenreiro S, Chu V, Outeiro TF, Conde JP. High-throughput study of alpha-synuclein expression in yeast using microfluidics for control of local cellular microenvironment. BIOMICROFLUIDICS 2012; 6:14109-141099. [PMID: 22662094 PMCID: PMC3365346 DOI: 10.1063/1.3683161] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Accepted: 01/12/2012] [Indexed: 05/26/2023]
Abstract
Microfluidics is an emerging technology which allows the miniaturization, integration, and automation of fluid handling processes. Microfluidic systems offer low sample consumption, significantly reduced processing time, and the prospect of massive parallelization. A microfluidic platform was developed for the control of the soluble cellular microenvironment of Saccharomyces cerevisiae cells, which enabled high-throughput monitoring of the controlled expression of alpha-synuclein (aSyn), a protein involved in Parkinson's disease. Y-shaped structures were fabricated using particle desorption mass spectrometry-based soft-lithography techniques to generate biomolecular gradients along a microchannel. Cell traps integrated along the microchannel allowed the positioning and monitoring of cells in precise locations, where different, well-controlled chemical environments were established. S. cerevisiae cells genetically engineered to encode the fusion protein aSyn-GFP (green fluorescent protein) under the control of GAL1, a galactose inducible promoter, were loaded in the microfluidic structure. A galactose concentration gradient was established in the channel and a time-dependent aSyn-GFP expression was obtained as a function of the positioning of cells along the galactose gradient. Our results demonstrate the applicability of this microfluidic platform to the spatiotemporal control of cellular microenvironment and open a range of possibilities for the study of cellular processes based on single-cell analysis.
Collapse
|
35
|
Ostrovidov S, Annabi N, Seidi A, Ramalingam M, Dehghani F, Kaji H, Khademhosseini A. Controlled Release of Drugs from Gradient Hydrogels for High-Throughput Analysis of Cell–Drug Interactions. Anal Chem 2012; 84:1302-9. [DOI: 10.1021/ac202256c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Serge Ostrovidov
- World Premier International-Advanced
Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan
| | - Nasim Annabi
- World Premier International-Advanced
Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan
- School of Chemical and Biomolecular
Engineering, University of Sydney, Sydney,
New South Wales 2006, Australia
| | - Azadeh Seidi
- World Premier International-Advanced
Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan
| | - Murugan Ramalingam
- World Premier International-Advanced
Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan
- National Institute of Health and
Medical Research U977, Faculte de Medecine, Universite de Strasbourg, Strasbourg Cedex 67085, France
| | - Fariba Dehghani
- School of Chemical and Biomolecular
Engineering, University of Sydney, Sydney,
New South Wales 2006, Australia
| | - Hirokazu Kaji
- Department of Bioengineering and Robotics,
Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - Ali Khademhosseini
- World Premier International-Advanced
Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan
- Center for Biomedical Engineering,
Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139,
United States
- Harvard-MIT
Division of Health
Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Wyss Institute for Biologically
Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
| |
Collapse
|
36
|
Anandhan A, Tamilselvam K, Radhiga T, Rao S, Essa MM, Manivasagam T. Theaflavin, a black tea polyphenol, protects nigral dopaminergic neurons against chronic MPTP/probenecid induced Parkinson's disease. Brain Res 2011; 1433:104-13. [PMID: 22138428 DOI: 10.1016/j.brainres.2011.11.021] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2011] [Revised: 11/04/2011] [Accepted: 11/07/2011] [Indexed: 01/25/2023]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disorder, characterized by loss of dopominergic neurons in substantia nigra pars compacta, and can be experimentally induced by the neurotoxin 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP). Chronic administration of MPTP/probenecid (MPTP/p) leads to oxidative stress, induction of apoptosis, and loss of dopominergic neurons which results in motor impairments. Epidemiological studies have shown an inverse relationship between tea consumption and susceptibility to PD. Theaflavin is a black tea polyphenol, which possess a wide variety of pharmacological properties including potent anti oxidative, anti apoptotic and anti inflammatory effects. The current study is aimed to assess the effect of theaflavin against MPTP/p induced neurodegenaration in C57BL/6 mice. We found that the theaflavin attenuates MPTP/p induced apoptosis and neurodegeneration as evidenced by increased expression of nigral tyrosine hydroxylase (TH), dopamine transporter (DAT) and reduced apoptotic markers such as caspase-3, 8, 9 accompanied by normalized behavioral characterization. This may be due to anti oxidative and anti apoptotic activity and these data indicate that theaflavin may provide a valuable therapeutic strategy for the treatment of progressive neurodegenerative diseases such as PD.
Collapse
Affiliation(s)
- Annadurai Anandhan
- Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India
| | | | | | | | | | | |
Collapse
|
37
|
Huh D, Hamilton GA, Ingber DE. From 3D cell culture to organs-on-chips. Trends Cell Biol 2011; 21:745-54. [PMID: 22033488 DOI: 10.1016/j.tcb.2011.09.005] [Citation(s) in RCA: 1145] [Impact Index Per Article: 88.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 09/19/2011] [Accepted: 09/20/2011] [Indexed: 01/09/2023]
Abstract
3D cell-culture models have recently garnered great attention because they often promote levels of cell differentiation and tissue organization not possible in conventional 2D culture systems. We review new advances in 3D culture that leverage microfabrication technologies from the microchip industry and microfluidics approaches to create cell-culture microenvironments that both support tissue differentiation and recapitulate the tissue-tissue interfaces, spatiotemporal chemical gradients, and mechanical microenvironments of living organs. These 'organs-on-chips' permit the study of human physiology in an organ-specific context, enable development of novel in vitro disease models, and could potentially serve as replacements for animals used in drug development and toxin testing.
Collapse
Affiliation(s)
- Dongeun Huh
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA 02115, USA
| | | | | |
Collapse
|
38
|
Dokmeci MR, Khademhosseini A. Preface to Special Topic: Microfluidics in cell biology and tissue engineering. BIOMICROFLUIDICS 2011; 5:22101. [PMID: 21799707 PMCID: PMC3145226 DOI: 10.1063/1.3594781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Indexed: 05/31/2023]
Abstract
In this special issue of Biomicrofluidics, a wide variety of applications of microfluidics to tissue engineering and cell biology are presented. The articles illustrate the benefits of using microfluidics for controlling the cellular environment in a precise yet high rate manner using minimum reagents. The topic is very timely and takes a stab at portraying a glimpse of what is to come in this exciting and emerging field of research.
Collapse
|