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Maulana TI, Teufel C, Cipriano M, Roosz J, Lazarevski L, van den Hil FE, Scheller L, Orlova V, Koch A, Hudecek M, Alb M, Loskill P. Breast cancer-on-chip for patient-specific efficacy and safety testing of CAR-T cells. Cell Stem Cell 2024; 31:989-1002.e9. [PMID: 38754430 DOI: 10.1016/j.stem.2024.04.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 02/22/2024] [Accepted: 04/22/2024] [Indexed: 05/18/2024]
Abstract
Physiologically relevant human models that recapitulate the challenges of solid tumors and the tumor microenvironment (TME) are highly desired in the chimeric antigen receptor (CAR)-T cell field. We developed a breast cancer-on-chip model with an integrated endothelial barrier that enables the transmigration of perfused immune cells, their infiltration into the tumor, and concomitant monitoring of cytokine release during perfused culture over a period of up to 8 days. Here, we exemplified its use for investigating CAR-T cell efficacy and the ability to control the immune reaction with a pharmacological on/off switch. Additionally, we integrated primary breast cancer organoids to study patient-specific CAR-T cell efficacy. The modular architecture of our tumor-on-chip paves the way for studying the role of other cell types in the TME and thus provides the potential for broad application in bench-to-bedside translation as well as acceleration of the preclinical development of CAR-T cell products.
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Affiliation(s)
- Tengku Ibrahim Maulana
- Department of Microphysiological Systems, Institute of Biomedical Engineering, Faculty of Medicine, Eberhard Karls University-Tübingen, 72074 Tübingen, Germany; NMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany
| | - Claudia Teufel
- Department of Microphysiological Systems, Institute of Biomedical Engineering, Faculty of Medicine, Eberhard Karls University-Tübingen, 72074 Tübingen, Germany
| | - Madalena Cipriano
- Department of Microphysiological Systems, Institute of Biomedical Engineering, Faculty of Medicine, Eberhard Karls University-Tübingen, 72074 Tübingen, Germany; 3R Center Tübingen for In Vitro Models and Alternatives to Animal Testing, 72074 Tübingen, Germany
| | - Julia Roosz
- NMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany
| | - Lisa Lazarevski
- Department of Microphysiological Systems, Institute of Biomedical Engineering, Faculty of Medicine, Eberhard Karls University-Tübingen, 72074 Tübingen, Germany
| | - Francijna E van den Hil
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden 2333 ZA, the Netherlands
| | - Lukas Scheller
- Medizinische Klinik und Poliklinik II, Lehrstuhl für Zelluläre Immuntherapie, Universitätsklinikum Würzburg, 97078 Würzburg, Germany
| | - Valeria Orlova
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden 2333 ZA, the Netherlands
| | - André Koch
- Department of Women's Health Tübingen, Eberhard Karls University-Tübingen, 72076 Tübingen, Germany
| | - Michael Hudecek
- Medizinische Klinik und Poliklinik II, Lehrstuhl für Zelluläre Immuntherapie, Universitätsklinikum Würzburg, 97078 Würzburg, Germany; Fraunhofer-Institut für Zelltherapie und Immunologie IZI, Außenstelle Würzburg Zelluläre Immuntherapie, 97082 Würzburg, Germany
| | - Miriam Alb
- Medizinische Klinik und Poliklinik II, Lehrstuhl für Zelluläre Immuntherapie, Universitätsklinikum Würzburg, 97078 Würzburg, Germany.
| | - Peter Loskill
- Department of Microphysiological Systems, Institute of Biomedical Engineering, Faculty of Medicine, Eberhard Karls University-Tübingen, 72074 Tübingen, Germany; NMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany; 3R Center Tübingen for In Vitro Models and Alternatives to Animal Testing, 72074 Tübingen, Germany.
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2
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Andele PK, Palazzolo S, Corona G, Caligiuri I, Kamensek U, Cemazar M, Canzonieri V, Rizzolio F. Human Omental Mature Adipocytes used as Paclitaxel Reservoir for Cell-Based Therapy in Ovarian Cancer. Adv Healthc Mater 2024; 13:e2304206. [PMID: 38334216 DOI: 10.1002/adhm.202304206] [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: 11/28/2023] [Revised: 01/20/2024] [Indexed: 02/10/2024]
Abstract
Primary human omental adipocytes and ovarian cancer(OC) cells establish a bidirectional communication in which tumor driven lipolysis is induced in adipocytes and the resulting fatty acids are delivered to cancer cells within the tumor microenvironment. Despite meaningful improvement in the treatment of OC, its efficacy is still limited by hydrophobicity and untargeted effects related to chemotherapeutics. Herein, omental adipocytes are firstly used as a reservoir for paclitaxel, named Living Paclitaxel Bullets (LPB) and secondly benefit from the established dialogue between adipocytes and cancer cells to engineer a drug delivery process that target specifically cancer cells. These results show that mature omental adipocytes can successfully uptake paclitaxel and deliver it to OC cells in a transwell coculture based in vitro model. In addition, the efficacy of this proof-of-concept has been demonstrated in vivo and induces a significant inhibition of tumor growth on a xenograft tumor model. The use of mature adipocytes can be suitable for clinical prospection in a cell-based therapy system, due to their mature and differentiated state, to avoid risks related to uncontrolled cell de novo proliferation capacity after the delivery of the antineoplastic drug as observed with other cell types when employed as drug carriers.
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Affiliation(s)
- Pacome K Andele
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Venice, 30172, Italy
- Department of Pathology, IRCCS CRO Aviano National Cancer Institute, Aviano, 33081, Italy
| | - Stefano Palazzolo
- Department of Pathology, IRCCS CRO Aviano National Cancer Institute, Aviano, 33081, Italy
| | - Giuseppe Corona
- Immunopathology and Cancer Biomarkers unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, 33081, Italy
| | - Isabella Caligiuri
- Department of Pathology, IRCCS CRO Aviano National Cancer Institute, Aviano, 33081, Italy
| | - Urska Kamensek
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, 1000, Slovenia
| | - Maja Cemazar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, 1000, Slovenia
| | - Vincenzo Canzonieri
- Department of Pathology, IRCCS CRO Aviano National Cancer Institute, Aviano, 33081, Italy
- Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, 34127, Italy
| | - Flavio Rizzolio
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Venice, 30172, Italy
- Department of Pathology, IRCCS CRO Aviano National Cancer Institute, Aviano, 33081, Italy
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3
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Mora I, Puiggròs F, Serras F, Gil-Cardoso K, Escoté X. Emerging models for studying adipose tissue metabolism. Biochem Pharmacol 2024; 223:116123. [PMID: 38484851 DOI: 10.1016/j.bcp.2024.116123] [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: 11/28/2023] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
Understanding adipose metabolism is essential for addressing obesity and related health concerns. However, the ethical and scientific pressure to animal testing, aligning with the 3Rs, has triggered the implementation of diverse alternative models for analysing anomalies in adipose metabolism. In this review, we will address this issue from various perspectives. Traditional adipocyte cell cultures, whether animal or human-derived, offer a fundamental starting point. These systems have their merits but may not fully replicate in vivo complexity. Established cell lines are valuable for high-throughput screening but may lack the authenticity of primary-derived adipocytes, which closely mimic native tissue. To enhance model sophistication, spheroids have been introduced. These three-dimensional cultures better mimicking the in vivo microenvironment, enabling the study of intricate cell-cell interactions, gene expression, and metabolic pathways. Organ-on-a-chip (OoC) platforms take this further by integrating multiple cell types into microfluidic devices, simulating tissue-level functions. Adipose-OoC (AOoC) provides dynamic environments with applications spanning drug testing to personalized medicine and nutrition. Beyond in vitro models, genetically amenable organisms (Caenorhabditis elegans, Drosophila melanogaster, and zebrafish larvae) have become powerful tools for investigating fundamental molecular mechanisms that govern adipose tissue functions. Their genetic tractability allows for efficient manipulation and high-throughput studies. In conclusion, a diverse array of research models is crucial for deciphering adipose metabolism. By leveraging traditional adipocyte cell cultures, primary-derived cells, spheroids, AOoCs, and lower organism models, we bridge the gap between animal testing and a more ethical, scientifically robust, and human-relevant approach, advancing our understanding of adipose tissue metabolism and its impact on health.
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Affiliation(s)
- Ignasi Mora
- Brudy Technology S.L., 08006 Barcelona, Spain
| | - Francesc Puiggròs
- Eurecat, Centre Tecnològic de Catalunya, Biotechnology Area, 43204 Reus, Spain
| | - Florenci Serras
- Department of Genetics, Microbiology and Statistics, School of Biology, University of Barcelona and Institute of Biomedicine of the University of Barcelona, Diagonal 643, 08028 Barcelona, Spain
| | - Katherine Gil-Cardoso
- Eurecat, Centre Tecnològic de Catalunya, Nutrition and Health Unit, 43204 Reus, Spain
| | - Xavier Escoté
- Eurecat, Centre Tecnològic de Catalunya, Nutrition and Health Unit, 43204 Reus, Spain.
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Chaurasiya V, Pham DD, Harju J, Juuti A, Penttilä A, Emmagouni SKG, Nguyen VD, Zhang B, Perttunen S, Keskitalo S, Zhou Y, Pietiläinen KH, Haridas PAN, Olkkonen VM. Human visceral adipose tissue microvascular endothelial cell isolation and establishment of co-culture with white adipocytes to analyze cell-cell communication. Exp Cell Res 2023; 433:113819. [PMID: 37852349 DOI: 10.1016/j.yexcr.2023.113819] [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: 04/08/2023] [Revised: 10/11/2023] [Accepted: 10/12/2023] [Indexed: 10/20/2023]
Abstract
Communication between adipocytes and endothelial cells (EC) is suggested to play an important role in the metabolic function of white adipose tissue. In order to generate tools to investigate in detail the physiology and communication of EC and adipocytes, a method for isolation of adipose microvascular EC from visceral adipose tissue (VAT) biopsies of subjects with obesity was developed. Moreover, mature white adipocytes were isolated from the VAT biopsies by a method adapted from a previously published Membrane aggregate adipocytes culture (MAAC) protocol. The identity and functionality of the cultivated and isolated adipose microvascular EC (AMvEC) was validated by imaging their morphology, analyses of mRNA expression, fluorescence activated cell sorting (FACS), immunostaining, low-density lipoprotein (LDL) uptake, and in vitro angiogenesis assays. Finally, we established a new trans filter co-culture system (membrane aggregate adipocyte and endothelial co-culture, MAAECC) for the analysis of communication between the two cell types. EC-adipocyte communication in this system was validated by omics analyses, revealing several altered proteins belonging to pathways such as metabolism, intracellular transport and signal transduction in adipocytes co-cultured with AMvEC. In reverse experiments, induction of several pathways including endothelial development and functions was found in AMvEC co-cultured with adipocytes. In conclusion, we developed a robust method to isolate EC from small quantities of human VAT. Furthermore, the MAAECC system established during the study enables one to study the communication between primary white adipocytes and EC or vice-versa and could also be employed for drug screening.
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Affiliation(s)
- Vaishali Chaurasiya
- Minerva Foundation Institute for Medical Research, Biomedicum 2U, Helsinki, Finland; Doctoral Programme in Biomedicine, University of Helsinki, Finland.
| | - Dan Duc Pham
- Minerva Foundation Institute for Medical Research, Biomedicum 2U, Helsinki, Finland
| | - Jukka Harju
- Department of Gastrointestinal Surgery, Abdominal Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Anne Juuti
- Department of Gastrointestinal Surgery, Abdominal Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Anne Penttilä
- Department of Gastrointestinal Surgery, Abdominal Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | | | - Van Dien Nguyen
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK; Systems Immunity Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
| | - Birong Zhang
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK; Systems Immunity Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
| | - Sanni Perttunen
- Minerva Foundation Institute for Medical Research, Biomedicum 2U, Helsinki, Finland
| | - Salla Keskitalo
- Molecular Systems Biology Research Group & Proteomics Unit, HiLIFE Helsinki Institute of Life Science, Institute of Biotechnology, University of Helsinki, Finland
| | - You Zhou
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK; Systems Immunity Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
| | - Kirsi H Pietiläinen
- Obesity Research Unit, Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland; HealthyWeightHub, Endocrinology, Abdominal Center, Helsinki University Hospital, Helsinki, Finland
| | - P A Nidhina Haridas
- Minerva Foundation Institute for Medical Research, Biomedicum 2U, Helsinki, Finland
| | - Vesa M Olkkonen
- Minerva Foundation Institute for Medical Research, Biomedicum 2U, Helsinki, Finland; Department of Anatomy, Faculty of Medicine, University of Helsinki, Finland.
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5
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Syahruddin MH, Anggraeni R, Ana ID. A microfluidic organ-on-a-chip: into the next decade of bone tissue engineering applied in dentistry. Future Sci OA 2023; 9:FSO902. [PMID: 37753360 PMCID: PMC10518836 DOI: 10.2144/fsoa-2023-0061] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 08/21/2023] [Indexed: 09/28/2023] Open
Abstract
A comprehensive understanding of the complex physiological and pathological processes associated with alveolar bones, their responses to different therapeutics strategies, and cell interactions with biomaterial becomes necessary in precisely treating patients with severe progressive periodontitis, as a bone-related issue in dentistry. However, existing monolayer cell culture or pre-clinical models have been unable to mimic the complex physiological, pathological and regeneration processes in the bone microenvironment in response to different therapeutic strategies. In this point, 'organ-on-a-chip' (OOAC) technology, specifically 'alveolar-bone-on-a-chip', is expected to resolve the problems by better imitating infection site microenvironment and microphysiology within the oral tissues. The OOAC technology is assessed in this study toward better approaches in disease modeling and better therapeutics strategy for bone tissue engineering applied in dentistry.
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Affiliation(s)
- Muhammad Hidayat Syahruddin
- Postgraduate Student, Dental Science Doctoral Study Program, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
| | - Rahmi Anggraeni
- Research Center for Preclinical & Clinical Medicine, National Research & Innovation Agency of the Republic of Indonesia, Cibinong Science Center, Bogor, 16915, Indonesia
- Research Collaboration Center for Biomedical Scaffolds, National Research & Innovation Agency (BRIN) – Universitas Gadjah Mada (UGM), Yogyakarta, 55281, Indonesia
| | - Ika Dewi Ana
- Department of Dental Biomedical Sciences, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
- Research Collaboration Center for Biomedical Scaffolds, National Research & Innovation Agency (BRIN) – Universitas Gadjah Mada (UGM), Yogyakarta, 55281, Indonesia
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6
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Chandran Suja V, Qi QM, Halloran K, Zhang J, Shaha S, Prakash S, Kumbhojkar N, Deslandes A, Huille S, Gokarn YR, Mitragotri S. A biomimetic chip to assess subcutaneous bioavailability of monoclonal antibodies in humans. PNAS NEXUS 2023; 2:pgad317. [PMID: 37901442 PMCID: PMC10612570 DOI: 10.1093/pnasnexus/pgad317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/12/2023] [Indexed: 10/31/2023]
Abstract
Subcutaneous (subQ) injection is a common route for delivering biotherapeutics, wherein pharmacokinetics is largely influenced by drug transport in a complex subQ tissue microenvironment. The selection of good drug candidates with beneficial pharmacokinetics for subQ injections is currently limited by a lack of reliable testing models. To address this limitation, we report here a Subcutaneous Co-Culture Tissue-on-a-chip for Injection Simulation (SubCuTIS). SubCuTIS possesses a 3D coculture tissue architecture, and it allows facile quantitative determination of relevant scale independent drug transport rate constants. SubCuTIS captures key in vivo physiological characteristics of the subQ tissues, and it differentiates the transport behavior of various chemically distinct molecules. We supplemented the transport measurements with theoretical modeling, which identified subtle differences in the local absorption rate constants of seven clinically available mAbs. Accounting for first-order proteolytic catabolism, we established a mathematical framework to assess clinical bioavailability using the local absorption rate constants obtained from SubCuTIS. Taken together, the technology described here broadens the applicability of organs-on-chips as a standardized and easy-to-use device for quantitative analysis of subQ drug transport.
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Affiliation(s)
- Vineeth Chandran Suja
- School of Engineering and Applied Sciences, Harvard University, Boston, MA 02134, USA
- Wyss Institute for Biologically Inspired Engineering, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Qin M Qi
- School of Engineering and Applied Sciences, Harvard University, Boston, MA 02134, USA
- Wyss Institute for Biologically Inspired Engineering, 3 Blackfan Circle, Boston, MA 02115, USA
| | | | | | - Suyog Shaha
- School of Engineering and Applied Sciences, Harvard University, Boston, MA 02134, USA
- Wyss Institute for Biologically Inspired Engineering, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Supriya Prakash
- School of Engineering and Applied Sciences, Harvard University, Boston, MA 02134, USA
- Wyss Institute for Biologically Inspired Engineering, 3 Blackfan Circle, Boston, MA 02115, USA
| | - Ninad Kumbhojkar
- School of Engineering and Applied Sciences, Harvard University, Boston, MA 02134, USA
- Wyss Institute for Biologically Inspired Engineering, 3 Blackfan Circle, Boston, MA 02115, USA
| | | | - Sylvain Huille
- Sanofi R&D, Impasse Des Ateliers, Vitry-sur-Seine 94400 France
| | | | - Samir Mitragotri
- School of Engineering and Applied Sciences, Harvard University, Boston, MA 02134, USA
- Wyss Institute for Biologically Inspired Engineering, 3 Blackfan Circle, Boston, MA 02115, USA
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7
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Kim J, Kim J, Jin Y, Cho SW. In situbiosensing technologies for an organ-on-a-chip. Biofabrication 2023; 15:042002. [PMID: 37587753 DOI: 10.1088/1758-5090/aceaae] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 07/25/2023] [Indexed: 08/18/2023]
Abstract
Thein vitrosimulation of organs resolves the accuracy, ethical, and cost challenges accompanyingin vivoexperiments. Organoids and organs-on-chips have been developed to model thein vitro, real-time biological and physiological features of organs. Numerous studies have deployed these systems to assess thein vitro, real-time responses of an organ to external stimuli. Particularly, organs-on-chips can be most efficiently employed in pharmaceutical drug development to predict the responses of organs before approving such drugs. Furthermore, multi-organ-on-a-chip systems facilitate the close representations of thein vivoenvironment. In this review, we discuss the biosensing technology that facilitates thein situ, real-time measurements of organ responses as readouts on organ-on-a-chip systems, including multi-organ models. Notably, a human-on-a-chip system integrated with automated multi-sensing will be established by further advancing the development of chips, as well as their assessment techniques.
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Affiliation(s)
- Jinyoung Kim
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Junghoon Kim
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Yoonhee Jin
- Department of Physiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
- Institute for Basic Science (IBS), Center for Nanomedicine, Seoul 03722, Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME), Advanced Science Institute, Yonsei University, Seoul 03722, Republic of Korea
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8
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Deng S, Li C, Cao J, Cui Z, Du J, Fu Z, Yang H, Chen P. Organ-on-a-chip meets artificial intelligence in drug evaluation. Theranostics 2023; 13:4526-4558. [PMID: 37649608 PMCID: PMC10465229 DOI: 10.7150/thno.87266] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 08/02/2023] [Indexed: 09/01/2023] Open
Abstract
Drug evaluation has always been an important area of research in the pharmaceutical industry. However, animal welfare protection and other shortcomings of traditional drug development models pose obstacles and challenges to drug evaluation. Organ-on-a-chip (OoC) technology, which simulates human organs on a chip of the physiological environment and functionality, and with high fidelity reproduction organ-level of physiology or pathophysiology, exhibits great promise for innovating the drug development pipeline. Meanwhile, the advancement in artificial intelligence (AI) provides more improvements for the design and data processing of OoCs. Here, we review the current progress that has been made to generate OoC platforms, and how human single and multi-OoCs have been used in applications, including drug testing, disease modeling, and personalized medicine. Moreover, we discuss issues facing the field, such as large data processing and reproducibility, and point to the integration of OoCs and AI in data analysis and automation, which is of great benefit in future drug evaluation. Finally, we look forward to the opportunities and challenges faced by the coupling of OoCs and AI. In summary, advancements in OoCs development, and future combinations with AI, will eventually break the current state of drug evaluation.
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Affiliation(s)
- Shiwen Deng
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Caifeng Li
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Robot Intelligent Laboratory of Traditional Chinese Medicine, Experimental Research Center, China Academy of Chinese Medical Sciences & MEGAROBO, Beijing 100700, China
| | - Junxian Cao
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Zhao Cui
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Jiang Du
- Yunnan Biovalley Pharmaceutical Co., Ltd, Kunming 650503, China
| | - Zheng Fu
- Robot Intelligent Laboratory of Traditional Chinese Medicine, Experimental Research Center, China Academy of Chinese Medical Sciences & MEGAROBO, Beijing 100700, China
| | - Hongjun Yang
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Robot Intelligent Laboratory of Traditional Chinese Medicine, Experimental Research Center, China Academy of Chinese Medical Sciences & MEGAROBO, Beijing 100700, China
| | - Peng Chen
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Yunnan Biovalley Pharmaceutical Co., Ltd, Kunming 650503, China
- Robot Intelligent Laboratory of Traditional Chinese Medicine, Experimental Research Center, China Academy of Chinese Medical Sciences & MEGAROBO, Beijing 100700, China
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9
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Liu X, Du Y, Zhao Z, Zou J, Zhang X, Zhang L. The multiple regulatory effects of white adipose tissue on bone homeostasis. J Cell Physiol 2023; 238:1193-1206. [PMID: 37120830 DOI: 10.1002/jcp.31025] [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: 01/12/2023] [Revised: 03/10/2023] [Accepted: 04/04/2023] [Indexed: 05/02/2023]
Abstract
White adipose tissue (WAT) is not only an energy storage reservoir that is critical in energy homeostasis but is also a highly metabolically active endocrine organ. WAT can secrete a variety of adipocytokines, including leptin (LEP), adiponectin (APN), resistin, visfatin, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and osteopontin (OPN). It can also synthesize and secrete exosomes, which enhance intercellular communication and participate in various physiological processes in the body. It can also synthesize and secrete exosomes to enhance intercellular communication and participate in a variety of physiological processes in the body. The skeleton is an important organ for protecting internal organs. It forms the scaffolding of the body and gives the body its basic form. It drives muscle contraction to produce movement under the regulation of the nervous system. It is also an important hematopoietic organ; and it is regulated by the cytokines secreted by WAT. As research related to the release of adipocytokines from WAT to affect the skeleton continues to progress, an inextricable link between bone lipid regulation has been identified. In this paper, we review the literature to summarize the structure, function and metabolism of WAT, elaborate the specific molecular mechanisms by which WAT-secreted hormones, cytokines and exosomes regulate skeletal cells, provide a theoretical basis for the in-depth study of WAT cross-organ regulation of bone, and provide new ideas for finding new adipose-secreted targeting factors for the treatment of skeletal diseases.
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Affiliation(s)
- Xiaohua Liu
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Yuxiang Du
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Zhonghan Zhao
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Jun Zou
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Xiaojing Zhang
- Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lingli Zhang
- College of Athletic Performance, Shanghai University of Sport, Shanghai, China
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10
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Karanfil AS, Louis F, Matsusaki M. Biofabrication of vascularized adipose tissues and their biomedical applications. MATERIALS HORIZONS 2023; 10:1539-1558. [PMID: 36789675 DOI: 10.1039/d2mh01391f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Recent advances in adipose tissue engineering and cell biology have led to the development of innovative therapeutic strategies in regenerative medicine for adipose tissue reconstruction. To date, the many in vitro and in vivo models developed for vascularized adipose tissue engineering cover a wide range of research areas, including studies with cells of various origins and types, polymeric scaffolds of natural and synthetic derivation, models presented using decellularized tissues, and scaffold-free approaches. In this review, studies on adipose tissue types with different functions, characteristics and body locations have been summarized with 3D in vitro fabrication approaches. The reason for the particular focus on vascularized adipose tissue models is that current liposuction and fat transplantation methods are unsuitable for adipose tissue reconstruction as the lack of blood vessels results in inadequate nutrient and oxygen delivery, leading to necrosis in situ. In the first part of this paper, current studies and applications of white and brown adipose tissues are presented according to the polymeric materials used, focusing on the studies which could show vasculature in vitro and after in vivo implantation, and then the research on adipose tissue fabrication and applications are explained.
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Affiliation(s)
- Aslı Sena Karanfil
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Japan.
| | - Fiona Louis
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, Osaka University, Japan
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Japan.
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, Osaka University, Japan
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Sunildutt N, Parihar P, Chethikkattuveli Salih AR, Lee SH, Choi KH. Revolutionizing drug development: harnessing the potential of organ-on-chip technology for disease modeling and drug discovery. Front Pharmacol 2023; 14:1139229. [PMID: 37180709 PMCID: PMC10166826 DOI: 10.3389/fphar.2023.1139229] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 04/05/2023] [Indexed: 05/16/2023] Open
Abstract
The inefficiency of existing animal models to precisely predict human pharmacological effects is the root reason for drug development failure. Microphysiological system/organ-on-a-chip technology (organ-on-a-chip platform) is a microfluidic device cultured with human living cells under specific organ shear stress which can faithfully replicate human organ-body level pathophysiology. This emerging organ-on-chip platform can be a remarkable alternative for animal models with a broad range of purposes in drug testing and precision medicine. Here, we review the parameters employed in using organ on chip platform as a plot mimic diseases, genetic disorders, drug toxicity effects in different organs, biomarker identification, and drug discoveries. Additionally, we address the current challenges of the organ-on-chip platform that should be overcome to be accepted by drug regulatory agencies and pharmaceutical industries. Moreover, we highlight the future direction of the organ-on-chip platform parameters for enhancing and accelerating drug discoveries and personalized medicine.
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Affiliation(s)
- Naina Sunildutt
- Department of Mechatronics Engineering, Jeju National University, Jeju, Republic of Korea
| | - Pratibha Parihar
- Department of Mechatronics Engineering, Jeju National University, Jeju, Republic of Korea
| | | | - Sang Ho Lee
- College of Pharmacy, Jeju National University, Jeju, Republic of Korea
| | - Kyung Hyun Choi
- Department of Mechatronics Engineering, Jeju National University, Jeju, Republic of Korea
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12
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Yoon H, Seo JK, Park TE. Microphysiological system recapitulating the pathophysiology of adipose tissue in obesity. Acta Biomater 2023; 159:188-200. [PMID: 36724863 DOI: 10.1016/j.actbio.2023.01.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 01/05/2023] [Accepted: 01/17/2023] [Indexed: 01/30/2023]
Abstract
A growing body of evidence has indicated that white adipose tissue (AT) remodeling is a major trigger for obesity-associated metabolic complications. However, the scarcity of translational models is an obstacle to the development of medicines that act on adipose restoration. Here, we describe a microphysiological system (MPS) that emulates the unique features of reprogrammed AT as a new in vitro tool for studying AT pathophysiology in obesity. The AT MPS contained mature adipocytes embedded in an extracellular matrix (ECM) hydrogel interfaced with AT microvascular endothelium, which was constantly perfused with fresh media. The unique biochemical signals due to the remodeled ECM in obesity were recapitulated using a decellularized AT ECM (AT dECM) hydrogel, which preserves the features of altered ECM composition in obesity. The mature adipocytes embedded in the AT dECM hydrogel maintained their function and morphology for a week without dedifferentiation. Using the AT MPS, we successfully modeled inflammation-induced AT microvascular dysfunction, the recruitment of immune cells due to the upregulation of cell adhesion molecules, and higher cancer cell adhesion as an indicator of metastasis, which are observed in obese individuals. The AT MPS may therefore represent a promising platform for understanding the dynamic cellular interplay in obesity-induced AT remodeling and validating the efficacy of drugs targeting AT in obesity. STATEMENT OF SIGNIFICANCE: The lack of translational in vitro white adipose tissue (AT) models is one of the main obstacles for understanding the obesity-induced reprogramming and the development of medicines. We report herein the AT microphysiological system (MPS), which recapitulates obesity and normal conditions and yields cell- and AT dECM-derived signals, thereby allowing accurate comparative in vitro analyses. Using the AT MPS, we successfully modeled reprogrammed AT in obesity conditions, including inflammation-induced AT vascular dysfunction, the recruitment of immune cells, and higher cancer cell metastasis, which are observed in obese individuals. Our proposed adipose tissue model providing physiological relevance and complexity may therefore enhance the understanding of obesity-associated disorders and be used to investigate their underlying molecular mechanisms to develop pharmacologic treatment strategies.
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Affiliation(s)
- Heejeong Yoon
- Department of Biomedical Engineering, College of Information and Biotechnology, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jeong Kon Seo
- UNIST Central Research Facilities (UCRF), Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Tae-Eun Park
- Department of Biomedical Engineering, College of Information and Biotechnology, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
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13
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From Single- to Multi-organ-on-a-Chip System for Studying Metabolic Diseases. BIOCHIP JOURNAL 2023. [DOI: 10.1007/s13206-023-00098-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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14
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Lemecha M, Chalise JP, Takamuku Y, Zhang G, Yamakawa T, Larson G, Itakura K. Lcn2 mediates adipocyte-muscle-tumor communication and hypothermia in pancreatic cancer cachexia. Mol Metab 2022; 66:101612. [PMID: 36243318 PMCID: PMC9596731 DOI: 10.1016/j.molmet.2022.101612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/22/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE Adipose tissue is the largest endocrine organ. When activated by cancer cells, adipocytes secrete adipocytokines and release fatty acids, which are then transferred to cancer cells and used for structural and biochemical support. How this metabolic symbiosis between cancer cells and adipocytes affects skeletal muscle and thermogenesis during cancer cachexia is unknown. Cancer cachexia is a multiorgan syndrome and how the communication between tissues is established has yet to be determined. We investigated adipose tissue secretory factors and explored their role in crosstalk of adipocytes, muscle, and tumor during pancreatic cancer cachexia. METHODS We used a pancreatic cancer cachexia mouse model generated by syngenic implantation of pancreatic ductal adenocarcinoma (PDAC) cells (KPC) intraperitoneally into C57BL/6 mice and Lcn2-knockout mice. For in vitro studies, adipocytes (3T3-L1 and primary adipocytes), cachectic cancer cells (Panc0203), non-cachectic cancer cells (Du145 cells), and skeletal muscle cells (C2C12 myoblasts) were used. RESULTS To identify molecules involved in the crosstalk of adipose tissue with muscle and tumors, we treated 3T3-L1 adipocytes with conditioned medium (CM) from cancer cells. Upon screening the secretomes from PDAC-induced adipocytes, several adipocytokines were identified, including lipocalin 2 (Lcn2). We investigated Lcn2 as a potential mediator of cachexia induced by adipocytes in response to PDAC. During tumor progression, mice exhibited a decline in body weight gain, which was accompanied by loss of adipose and muscle tissues. Tumor-harboring mice developed drastic hypothermia because of a dramatic loss of fat in brown adipose tissue (BAT) and suppression of the thermogenesis pathway. We inhibited Lcn2 with an anti-Lcn2 antibody neutralization or genomic ablation in mice. Lcn2 deficiency significantly improved body temperature in tumor-bearing mice, which was supported by the increased expression of Ucp1 and β3-adrenergic receptor in BAT. In addition, Lcn2 inhibition abrogated the loss of fat and muscle in tumor-bearing mice. In contrast to tumor-bearing WT mice, the corresponding Lcn2-knockout mice showed reduced ATGL expression in iWAT and decreased the expression of muscle atrophy molecular markers MuRF-1 and Fbx32. CONCLUSIONS This study showed that Lcn2 is causally involved in the dysregulation of adipose tissue-muscle-tumor crosstalk during pancreatic cancer cachexia. Therapeutic targets that suppress Lcn2 may minimize the progression of cachexia.
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Affiliation(s)
- Mengistu Lemecha
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA,Corresponding author. Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope 1500 E Duarte Rd, Duarte, CA 91010, USA.
| | - Jaya Prakash Chalise
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Yuki Takamuku
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA,Department of Central Research Institute, Wakunaga Pharmaceutical Co., Ltd., Akitakata, Hiroshima, Japan
| | - Guoxiang Zhang
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Takahiro Yamakawa
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Garrett Larson
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Keiichi Itakura
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA, USA
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15
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Albrecht FB, Schmidt FF, Volz AC, Kluger PJ. Bioprinting of 3D Adipose Tissue Models Using a GelMA-Bioink with Human Mature Adipocytes or Human Adipose-Derived Stem Cells. Gels 2022; 8:gels8100611. [PMID: 36286112 PMCID: PMC9601941 DOI: 10.3390/gels8100611] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/21/2022] [Accepted: 09/21/2022] [Indexed: 12/31/2022] Open
Abstract
Adipose tissue is related to the development and manifestation of multiple diseases, demonstrating the importance of suitable in vitro models for research purposes. In this study, adipose tissue lobuli were explanted, cultured, and used as an adipose tissue control to evaluate in vitro generated adipose tissue models. During culture, lobule exhibited a stable weight, lactate dehydrogenase, and glycerol release over 15 days. For building up in vitro adipose tissue models, we adapted the biomaterial gelatin methacryloyl (GelMA) composition and handling to homogeneously mix and bioprint human primary mature adipocytes (MA) and adipose-derived stem cells (ASCs), respectively. Accelerated cooling of the bioink turned out to be essential for the homogeneous distribution of lipid-filled MAs in the hydrogel. Last, we compared manual and bioprinted GelMA hydrogels with MA or ASCs and the explanted lobules to evaluate the impact of the printing process and rate the models concerning the physiological reference. The viability analyses demonstrated no significant difference between the groups due to additive manufacturing. The staining of intracellular lipids and perilipin A suggest that GelMA is well suited for ASCs and MA. Therefore, we successfully constructed physiological in vitro models by bioprinting MA-containing GelMA bioinks.
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Affiliation(s)
- Franziska B. Albrecht
- Reutlingen Research Institute, Reutlingen University, 72762 Reutlingen, Germany
- Faculty of Natural Science, University of Hohenheim, 70599 Stuttgart, Germany
| | - Freia F. Schmidt
- Reutlingen Research Institute, Reutlingen University, 72762 Reutlingen, Germany
| | - Ann-Cathrin Volz
- Reutlingen Research Institute, Reutlingen University, 72762 Reutlingen, Germany
| | - Petra J. Kluger
- Faculty of Applied Chemistry, Reutlingen University, 72762 Reutlingen, Germany
- Correspondence: ; Tel.: +49-7121-271-2061
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16
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Compera N, Atwell S, Wirth J, von Törne C, Hauck SM, Meier M. Adipose microtissue-on-chip: a 3D cell culture platform for differentiation, stimulation, and proteomic analysis of human adipocytes. LAB ON A CHIP 2022; 22:3172-3186. [PMID: 35875914 PMCID: PMC9400584 DOI: 10.1039/d2lc00245k] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/16/2022] [Indexed: 06/01/2023]
Abstract
Human fat tissue has evolved to serve as a major energy reserve. An imbalance between energy intake and expenditure leads to an expansion of adipose tissue. Maintenance of this energy imbalance over long periods leads to obesity and metabolic disorders such as type 2 diabetes, for which a clinical cure is not yet available. In this study, we developed a microfluidic large-scale integration chip platform to automate the formation, long-term culture, and retrieval of 3D adipose microtissues to enable longitudinal studies of adipose tissue in vitro. The chip was produced from soft-lithography molds generated by 3D-printing, which allowed scaling of pneumatic membrane valves for parallel fluid routing and thus incorporated microchannels with variable dimensions to handle 3D cell cultures with diameters of several hundred micrometers. In 32 individual fluidically accessible cell culture chambers, designed to enable the self-aggregation process of three microtissues, human adipose stem cells differentiated into mature adipocytes over a period of two weeks. Coupling mass spectrometry to the cell culture platform, we determined the minimum cell numbers required to obtain robust and complex proteomes with over 1800 identified proteins. The adipose microtissues on the chip platform were then used to periodically simulate food intake by alternating the glucose level in the cell-feeding media every 6 h over the course of one week. The proteomes of adipocytes under low/high glucose conditions exhibited unique protein profiles, confirming the technical functionality and applicability of the chip platform. Thus, our adipose tissue-on-chip in vitro model may prove useful for elucidating the molecular and functional mechanisms of adipose tissue in normal and pathological conditions, such as obesity.
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Affiliation(s)
- Nina Compera
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, Munich, Germany.
| | - Scott Atwell
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, Munich, Germany.
| | - Johannes Wirth
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, Munich, Germany.
| | - Christine von Törne
- Metabolomics and Proteomics Core, Helmholtz Zentrum München, Munich, Germany
| | - Stefanie M Hauck
- Metabolomics and Proteomics Core, Helmholtz Zentrum München, Munich, Germany
| | - Matthias Meier
- Helmholtz Pioneer Campus, Helmholtz Zentrum München, Munich, Germany.
- TUM School of Medicine, Technical University of Munich, Munich, Germany
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17
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Abstract
The failure of animal models to predict therapeutic responses in humans is a major problem that also brings into question their use for basic research. Organ-on-a-chip (organ chip) microfluidic devices lined with living cells cultured under fluid flow can recapitulate organ-level physiology and pathophysiology with high fidelity. Here, I review how single and multiple human organ chip systems have been used to model complex diseases and rare genetic disorders, to study host-microbiome interactions, to recapitulate whole-body inter-organ physiology and to reproduce human clinical responses to drugs, radiation, toxins and infectious pathogens. I also address the challenges that must be overcome for organ chips to be accepted by the pharmaceutical industry and regulatory agencies, as well as discuss recent advances in the field. It is evident that the use of human organ chips instead of animal models for drug development and as living avatars for personalized medicine is ever closer to realization.
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Affiliation(s)
- Donald E Ingber
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA.
- Vascular Biology Program, Department of Surgery, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA.
- Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, USA.
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18
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Pieters V, Rjaibi ST, Singh K, Li NT, Khan ST, Nunes SS, Dal Cin A, Gilbert P, McGuigan AP. A three-dimensional human adipocyte model of fatty acid-induced obesity. Biofabrication 2022; 14. [PMID: 35896099 DOI: 10.1088/1758-5090/ac84b1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 07/27/2022] [Indexed: 11/12/2022]
Abstract
Obesity prevalence has reached pandemic proportions, leaving individuals at high risk for the development of diseases such as cancer and type 2 diabetes. In obesity, to accommodate excess lipid storage, adipocytes become hypertrophic, which is associated with an increased pro-inflammatory cytokine secretion and dysfunction of metabolic processes such as insulin signaling and lipolysis. Targeting adipocyte dysfunction is an important strategy to prevent the development of obesity-associated disease. However, it is unclear how accurately animal models reflect human biology, and the long-term culture of human hypertrophic adipocytes in an in vitro 2D monolayer is challenging due to the buoyant nature of adipocytes. Here we describe the development of a human 3D in vitro disease model that recapitulates hallmarks of obese adipocyte dysfunction. First, primary human adipose-derived mesenchymal stromal cells are embedded in hydrogel, and infiltrated into a thin cellulose scaffold. The thin microtissue profile allows for efficient assembly and image-based analysis. After adipocyte differentiation, the scaffold is stimulated with oleic or palmitic acid to mimic caloric overload. Using functional assays, we demonstrated that this treatment induced important obese adipocyte characteristics such as a larger lipid droplet size, increased basal lipolysis, insulin resistance and a change in macrophage gene expression through adipocyte-conditioned media. This 3D disease model mimics physiologically relevant hallmarks of obese adipocytes, to enable investigations into the mechanisms by which dysfunctional adipocytes contribute to disease.
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Affiliation(s)
- Vera Pieters
- University of Toronto, 200 College Street, Toronto, Ontario, M5R3E5, CANADA
| | - Saifedine T Rjaibi
- University of Toronto, 200 College Street, Toronto, Ontario, M5R3E5, CANADA
| | - Kanwaldeep Singh
- University of Toronto, 200 College Street, Toronto, Ontario, M5R 3E5, CANADA
| | - Nancy T Li
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 1A1, CANADA
| | - Safwat T Khan
- University of Toronto, 200 College Street, Toronto, Ontario, M5R 3E5, CANADA
| | - Sara S Nunes
- University of Toronto, 200 College Street, Toronto, Ontario, M5R 3E5, CANADA
| | - Arianna Dal Cin
- McMaster University, 504-304 Victoria Ave North, Hamilton, Ontario, L8L 5G4, CANADA
| | - Penney Gilbert
- University of Toronto, 200 College Street, Toronto, Ontario, M5R 3E5, CANADA
| | - Alison P McGuigan
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Office: WB338, Walberg Building,, 200 College Street,, Toronto, ON, M5S 3E5, Toronto, Ontario, M5S 1A1, CANADA
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19
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Rogal J, Roosz J, Teufel C, Cipriano M, Xu R, Eisler W, Weiss M, Schenke‐Layland K, Loskill P. Autologous Human Immunocompetent White Adipose Tissue-on-Chip. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104451. [PMID: 35466539 PMCID: PMC9218765 DOI: 10.1002/advs.202104451] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 03/03/2022] [Indexed: 05/07/2023]
Abstract
Obesity and associated diseases, such as diabetes, have reached epidemic proportions globally. In this era of "diabesity", white adipose tissue (WAT) has become a target of high interest for therapeutic strategies. To gain insights into mechanisms of adipose (patho-)physiology, researchers traditionally relied on animal models. Leveraging Organ-on-Chip technology, a microphysiological in vitro model of human WAT is introduced: a tailored microfluidic platform featuring vasculature-like perfusion that integrates 3D tissues comprising all major WAT-associated cellular components (mature adipocytes, organotypic endothelial barriers, stromovascular cells including adipose tissue macrophages) in an autologous manner and recapitulates pivotal WAT functions, such as energy storage and mobilization as well as endocrine and immunomodulatory activities. A precisely controllable bottom-up approach enables the generation of a multitude of replicates per donor circumventing inter-donor variability issues and paving the way for personalized medicine. Moreover, it allows to adjust the model's degree of complexity via a flexible mix-and-match approach. This WAT-on-Chip system constitutes the first human-based, autologous, and immunocompetent in vitro adipose tissue model that recapitulates almost full tissue heterogeneity and can become a powerful tool for human-relevant research in the field of metabolism and its associated diseases as well as for compound testing and personalized- and precision medicine applications.
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Affiliation(s)
- Julia Rogal
- Department for Microphysiological Systems, Institute of Biomedical EngineeringEberhard Karls University TübingenÖsterbergstr. 3Tübingen72074Germany
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGBNobelstr. 12Stuttgart70569Germany
| | - Julia Roosz
- NMI Natural and Medical Sciences Institute at the University of TübingenMarkwiesenstr. 55Reutlingen72770Germany
| | - Claudia Teufel
- Department for Microphysiological Systems, Institute of Biomedical EngineeringEberhard Karls University TübingenÖsterbergstr. 3Tübingen72074Germany
| | - Madalena Cipriano
- Department for Microphysiological Systems, Institute of Biomedical EngineeringEberhard Karls University TübingenÖsterbergstr. 3Tübingen72074Germany
- 3R‐Center for In vitro Models and Alternatives to Animal TestingEberhard Karls University TübingenÖsterbergstr. 3Tübingen72074Germany
| | - Raylin Xu
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGBNobelstr. 12Stuttgart70569Germany
- Harvard Medical School (HMS)25 Shattuck StBostonMA02115USA
| | - Wiebke Eisler
- Clinic for PlasticReconstructiveHand and Burn SurgeryBG Trauma CenterEberhard Karls University TübingenSchnarrenbergstraße 95Tübingen72076Germany
| | - Martin Weiss
- NMI Natural and Medical Sciences Institute at the University of TübingenMarkwiesenstr. 55Reutlingen72770Germany
- Department of Women's HealthEberhard Karls University TübingenCalwerstrasse 7Tübingen72076Germany
| | - Katja Schenke‐Layland
- NMI Natural and Medical Sciences Institute at the University of TübingenMarkwiesenstr. 55Reutlingen72770Germany
- Department of Medicine/CardiologyCardiovascular Research LaboratoriesDavid Geffen School of Medicine at UCLA675 Charles E. Young Drive South, MRL 3645Los AngelesCA90095USA
- Cluster of Excellence iFIT (EXC2180) “Image‐Guided and Functionally Instructed Tumor Therapies”Eberhard Karls University TuebingenRöntgenweg 11Tuebingen72076Germany
- Department for Medical Technologies and Regenerative MedicineInstitute of Biomedical EngineeringEberhard Karls University TübingenSilcherstr. 7/1Tübingen72076Germany
| | - Peter Loskill
- Department for Microphysiological Systems, Institute of Biomedical EngineeringEberhard Karls University TübingenÖsterbergstr. 3Tübingen72074Germany
- NMI Natural and Medical Sciences Institute at the University of TübingenMarkwiesenstr. 55Reutlingen72770Germany
- 3R‐Center for In vitro Models and Alternatives to Animal TestingEberhard Karls University TübingenÖsterbergstr. 3Tübingen72074Germany
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20
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Schneider O, Moruzzi A, Fuchs S, Grobel A, Schulze HS, Mayr T, Loskill P. Fusing spheroids to aligned μ-tissues in a heart-on-chip featuring oxygen sensing and electrical pacing capabilities. Mater Today Bio 2022; 15:100280. [PMID: 35601892 PMCID: PMC9120495 DOI: 10.1016/j.mtbio.2022.100280] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/01/2022] [Accepted: 05/02/2022] [Indexed: 12/24/2022] Open
Abstract
Over the last decade, Organ-on-Chip (OoC) emerged as a promising technology for advanced in vitro models, recapitulating key physiological cues. OoC approaches tailored for cardiac tissue engineering resulted in a variety of platforms, some of which integrate stimulation or probing capabilities. Due to manual handling processes, however, a large-scale standardized and robust tissue generation, applicable in an industrial setting, is still out of reach. Here, we present a novel cell injection and tissue generation concept relying on spheroids, which can be produced in large quantities and uniform size from induced pluripotent stem cell-derived human cardiomyocytes. Hydrostatic flow transports and accumulates spheroids in dogbone-shaped tissue chambers, which subsequently fuse and form aligned, contracting cardiac muscle fibers. Furthermore, we demonstrate electrical stimulation capabilities by utilizing fluidic media connectors as electrodes and provide the blueprint of a low-cost, open-source, scriptable pulse generator. We report on a novel integration strategy of optical O2 sensor spots into resin-based microfluidic systems, enabling in situ determination of O2 partial pressures. Finally, a proof-of-concept demonstrating electrical stimulation combined with in situ monitoring of metabolic activity in cardiac tissues is provided. The developed system thus opens the door for advanced OoCs integrating biophysical stimulation as well as probing capabilities and serves as a blueprint for the facile and robust generation of high density microtissues in microfluidic modules amenable to scaling-up and automation.
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Affiliation(s)
- Oliver Schneider
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
| | - Alessia Moruzzi
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany
- Department for Microphysiological Systems, Institute of Biomedical Engineering, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Stefanie Fuchs
- Institute for Analytical Chemistry and Food Chemistry, Graz University of Technology, Graz, Austria
| | - Alina Grobel
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
| | - Henrike S. Schulze
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
| | - Torsten Mayr
- Institute for Analytical Chemistry and Food Chemistry, Graz University of Technology, Graz, Austria
| | - Peter Loskill
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany
- Department for Microphysiological Systems, Institute of Biomedical Engineering, Eberhard Karls University Tübingen, Tübingen, Germany
- 3R-Center for In vitro Models and Alternatives to Animal Testing, Eberhard Karls University Tübingen, Tübingen, Germany
- Corresponding author. Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany.
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21
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Wrba L, Halbgebauer R, Roos J, Huber-Lang M, Fischer-Posovszky P. Adipose tissue: a neglected organ in the response to severe trauma? Cell Mol Life Sci 2022; 79:207. [PMID: 35338424 PMCID: PMC8956559 DOI: 10.1007/s00018-022-04234-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/17/2022] [Accepted: 03/07/2022] [Indexed: 01/01/2023]
Abstract
Despite the manifold recent efforts to improve patient outcomes, trauma still is a clinical and socioeconomical issue of major relevance especially in younger people. The systemic immune reaction after severe injury is characterized by a strong pro- and anti-inflammatory response. Besides its functions as energy storage depot and organ-protective cushion, adipose tissue regulates vital processes via its secretion products. However, there is little awareness of the important role of adipose tissue in regulating the posttraumatic inflammatory response. In this review, we delineate the local and systemic role of adipose tissue in trauma and outline different aspects of adipose tissue as an immunologically active modifier of inflammation and as an immune target of injured remote organs after severe trauma.
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Affiliation(s)
- Lisa Wrba
- Institute of Clinical and Experimental Trauma Immunology, Ulm University Medical Center, Ulm, Germany
- Department of Trauma, Orthopedic, Plastic and Hand Surgery, University Hospital of Augsburg, Augsburg, Germany
| | - Rebecca Halbgebauer
- Institute of Clinical and Experimental Trauma Immunology, Ulm University Medical Center, Ulm, Germany
| | - Julian Roos
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Eythstr. 24, 89075, Ulm, Germany
| | - Markus Huber-Lang
- Institute of Clinical and Experimental Trauma Immunology, Ulm University Medical Center, Ulm, Germany
| | - Pamela Fischer-Posovszky
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Eythstr. 24, 89075, Ulm, Germany.
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22
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Shroff T, Aina K, Maass C, Cipriano M, Lambrecht J, Tacke F, Mosig A, Loskill P. Studying metabolism with multi-organ chips: new tools for disease modelling, pharmacokinetics and pharmacodynamics. Open Biol 2022; 12:210333. [PMID: 35232251 PMCID: PMC8889168 DOI: 10.1098/rsob.210333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Non-clinical models to study metabolism including animal models and cell assays are often limited in terms of species translatability and predictability of human biology. This field urgently requires a push towards more physiologically accurate recapitulations of drug interactions and disease progression in the body. Organ-on-chip systems, specifically multi-organ chips (MOCs), are an emerging technology that is well suited to providing a species-specific platform to study the various types of metabolism (glucose, lipid, protein and drug) by recreating organ-level function. This review provides a resource for scientists aiming to study human metabolism by providing an overview of MOCs recapitulating aspects of metabolism, by addressing the technical aspects of MOC development and by providing guidelines for correlation with in silico models. The current state and challenges are presented for two application areas: (i) disease modelling and (ii) pharmacokinetics/pharmacodynamics. Additionally, the guidelines to integrate the MOC data into in silico models could strengthen the predictive power of the technology. Finally, the translational aspects of metabolizing MOCs are addressed, including adoption for personalized medicine and prospects for the clinic. Predictive MOCs could enable a significantly reduced dependence on animal models and open doors towards economical non-clinical testing and understanding of disease mechanisms.
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Affiliation(s)
- Tanvi Shroff
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany,Department for Microphysiological Systems, Institute for Biomedical Engineering, Faculty of Medicine, Eberhard Karls University Tübingen, Österbergstraße 3, 72074 Tübingen, Germany
| | - Kehinde Aina
- Institute of Biochemistry II, Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany
| | | | - Madalena Cipriano
- Department for Microphysiological Systems, Institute for Biomedical Engineering, Faculty of Medicine, Eberhard Karls University Tübingen, Österbergstraße 3, 72074 Tübingen, Germany
| | - Joeri Lambrecht
- Department of Hepatology and Gastroenterology, Charité University Medicine Berlin, Campus Virchow Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Frank Tacke
- Department of Hepatology and Gastroenterology, Charité University Medicine Berlin, Campus Virchow Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Alexander Mosig
- Institute of Biochemistry II, Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany
| | - Peter Loskill
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany,Department for Microphysiological Systems, Institute for Biomedical Engineering, Faculty of Medicine, Eberhard Karls University Tübingen, Österbergstraße 3, 72074 Tübingen, Germany,3R-Center for In vitro Models and Alternatives to Animal Testing, Eberhard Karls University Tübingen, Tübingen, Germany
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23
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Cuanalo-Contreras K, Benkmann D. Towards More Human and Humane Testing: The Role of the Device Supplier Industry. Altern Lab Anim 2022; 50:62-70. [PMID: 35184611 DOI: 10.1177/02611929211073132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In vivo testing has been the gold standard for preclinical drug development and toxicology. However, animal-based methods often lack human relevance and have a low predictability rate, not to mention the enormous ethical and financial concerns associated with their use. For instance, according to the US Congressional Budget Office (cbo.gov), it takes an average of 10.5 years to take a compound from the preclinical phase to the market, with a cost of US$1-US$2 billion. 90% of drugs that are tested in animals and enter clinical trials fail due to lack of safety and efficacy - this fact questions the significance of in vivo testing. Cells in culture can recapitulate certain aspects of physiology and disease, as well as indicate drug responses and toxicity. Thus, they represent a sophisticated human-relevant and humane alternative. With advances in the in vitro field, it is anticipated that confidence will be gained towards a move away from traditional in vivo models. Specialised supplier industries have been a driving force in the transition to non-animal research, by translating new approach methodologies into scalable products that have been adopted by the regulatory and testing industries - but we are still at the beginning. In this article, we introduce the perspective of the device supplier industry on the current challenges and opportunities surrounding the adoption of new in vitro methods, with the goal of promoting effective co-operation with scientists and other stakeholders. In addition, we highlight some examples of where non-animal approaches have been used in regulatory submissions, as well as listing some educational and training resources that can help when selecting the most appropriate assay.
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24
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Cipriano M, Schlünder K, Probst C, Linke K, Weiss M, Fischer MJ, Mesch L, Achberger K, Liebau S, Mesquida M, Nicolini V, Schneider A, Giusti AM, Kustermann S, Loskill P. Human immunocompetent choroid-on-chip: a novel tool for studying ocular effects of biological drugs. Commun Biol 2022; 5:52. [PMID: 35027657 PMCID: PMC8758775 DOI: 10.1038/s42003-021-02977-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 12/03/2021] [Indexed: 12/23/2022] Open
Abstract
Disorders of the eye leading to visual impairment are a major issue that affects millions of people. On the other side ocular toxicities were described for e.g. molecularly targeted therapies in oncology and may hamper their development. Current ocular model systems feature a number of limitations affecting human-relevance and availability. To find new options for pharmacological treatment and assess mechanisms of toxicity, hence, novel complex model systems that are human-relevant and readily available are urgently required. Here, we report the development of a human immunocompetent Choroid-on-Chip (CoC), a human cell-based in vitro model of the choroid layer of the eye integrating melanocytes and microvascular endothelial cells, covered by a layer of retinal pigmented epithelial cells. Immunocompetence is achieved by perfusion of peripheral immune cells. We demonstrate controlled immune cell recruitment into the stromal compartments through a vascular monolayer and in vivo-like cytokine release profiles. To investigate applicability for both efficacy testing of immunosuppressive compounds as well as safety profiling of immunoactivating antibodies, we exposed the CoCs to cyclosporine and tested CD3 bispecific antibodies.
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Affiliation(s)
- Madalena Cipriano
- Institute for Biomedical Engineering, Eberhard Karls University Tübingen, Tübingen, Germany
- 3R-Center for In vitro Models and Alternatives to Animal Testing, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Katharina Schlünder
- Institute for Biomedical Engineering, Eberhard Karls University Tübingen, Tübingen, Germany
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany
| | - Christopher Probst
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
| | - Kirstin Linke
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
| | - Martin Weiss
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany
- Department of Women's Health, Research Institute for Women's Health, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Mona Julia Fischer
- Institute for Biomedical Engineering, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Lena Mesch
- Department of Women's Health, Research Institute for Women's Health, Eberhard Karls University Tübingen, Tübingen, Germany
- Institute of Neuroanatomy & Developmental Biology (INDB), Eberhard Karls University Tübingen, Tübingen, Germany
| | - Kevin Achberger
- Institute of Neuroanatomy & Developmental Biology (INDB), Eberhard Karls University Tübingen, Tübingen, Germany
| | - Stefan Liebau
- Institute of Neuroanatomy & Developmental Biology (INDB), Eberhard Karls University Tübingen, Tübingen, Germany
| | - Marina Mesquida
- Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Valeria Nicolini
- Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Anneliese Schneider
- Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Zurich, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Anna Maria Giusti
- Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Zurich, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Stefan Kustermann
- Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
| | - Peter Loskill
- Institute for Biomedical Engineering, Eberhard Karls University Tübingen, Tübingen, Germany.
- 3R-Center for In vitro Models and Alternatives to Animal Testing, Eberhard Karls University Tübingen, Tübingen, Germany.
- NMI Natural and Medical Sciences Institute at the University of Tübingen, Reutlingen, Germany.
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25
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Qi L, Zushin PJ, Chang CF, Lee YT, Alba DL, Koliwad S, Stahl A. Probing Insulin Sensitivity with Metabolically Competent Human Stem Cell-Derived White Adipose Tissue Microphysiological Systems. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2103157. [PMID: 34761526 PMCID: PMC8776615 DOI: 10.1002/smll.202103157] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/21/2021] [Indexed: 05/13/2023]
Abstract
Impaired white adipose tissue (WAT) function has been recognized as a critical early event in obesity-driven disorders, but high buoyancy, fragility, and heterogeneity of primary adipocytes have largely prevented their use in drug discovery efforts highlighting the need for human stem cell-based approaches. Here, human stem cells are utilized to derive metabolically functional 3D adipose tissue (iADIPO) in a microphysiological system (MPS). Surprisingly, previously reported WAT differentiation approaches create insulin resistant WAT ill-suited for type-2 diabetes mellitus drug discovery. Using three independent insulin sensitivity assays, i.e., glucose and fatty acid uptake and suppression of lipolysis, as the functional readouts new differentiation conditions yielding hormonally responsive iADIPO are derived. Through concomitant optimization of an iADIPO-MPS, it is abled to obtain WAT with more unilocular and significantly larger (≈40%) lipid droplets compared to iADIPO in 2D culture, increased insulin responsiveness of glucose uptake (≈2-3 fold), fatty acid uptake (≈3-6 fold), and ≈40% suppressing of stimulated lipolysis giving a dynamic range that is competent to current in vivo and ex vivo models, allowing to identify both insulin sensitizers and desensitizers.
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Affiliation(s)
- Lin Qi
- Department of Nutritional Science and Toxicology, College of Natural Resources, University of California, Berkeley, Berkeley, California, 94720, USA
| | - Peter James Zushin
- Department of Nutritional Science and Toxicology, College of Natural Resources, University of California, Berkeley, Berkeley, California, 94720, USA
| | - Ching-Fang Chang
- Department of Nutritional Science and Toxicology, College of Natural Resources, University of California, Berkeley, Berkeley, California, 94720, USA
| | - Yue Tung Lee
- Department of Nutritional Science and Toxicology, College of Natural Resources, University of California, Berkeley, Berkeley, California, 94720, USA
| | - Diana L. Alba
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of California, San Francisco; Diabetes Center, University of California, San Francisco, San Francisco, California 94143, USA
| | - Suneil Koliwad
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of California, San Francisco; Diabetes Center, University of California, San Francisco, San Francisco, California 94143, USA
| | - Andreas Stahl
- Department of Nutritional Science and Toxicology, College of Natural Resources, University of California, Berkeley, Berkeley, California, 94720, USA
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26
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Louis F, Sowa Y, Kitano S, Matsusaki M. High-throughput drug screening models of mature adipose tissues which replicate the physiology of patients' Body Mass Index (BMI). Bioact Mater 2022; 7:227-241. [PMID: 34466729 PMCID: PMC8379425 DOI: 10.1016/j.bioactmat.2021.05.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/27/2021] [Accepted: 05/07/2021] [Indexed: 12/27/2022] Open
Abstract
Obesity is a complex and incompletely understood disease, but current drug screening strategies mostly rely on immature in vitro adipose models which cannot recapitulate it properly. To address this issue, we developed a statistically validated high-throughput screening model by seeding human mature adipocytes from patients, encapsulated in physiological collagen microfibers. These drop tissues ensured the maintenance of adipocyte viability and functionality for controlling glucose and fatty acids uptake, as well as glycerol release. As such, patients' BMI and insulin sensitivity displayed a strong inverse correlation: the healthy adipocytes were associated with the highest insulin-induced glucose uptake, while insulin resistance was confirmed in the underweight and severely obese adipocytes. Insulin sensitivity recovery was possible with two type 2 diabetes treatments, rosiglitazone and melatonin. Finally, the addition of blood vasculature to the model seemed to more accurately recapitulate the in vivo physiology, with particular respect to leptin secretion metabolism.
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Affiliation(s)
- Fiona Louis
- Osaka University, Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, 2-1 Yamadaoka, Suita Osaka, 565-0871, Japan
| | - Yoshihiro Sowa
- Kyoto Prefectural University of Medicine, Department of Plastic and Reconstructive Surgery, Graduate School of Medical Sciences, Kamigyo-ku Kajii-cho, Kawaramachi-Hirokoji, Kyoto, 602-8566, Japan
- Corresponding author. Kyoto, 602-8566, Kamigyo-ku Kajii-cho, Kawaramachi-Hirokoji, Japan.
| | - Shiro Kitano
- Osaka University, Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, 2-1 Yamadaoka, Suita Osaka, 565-0871, Japan
- TOPPAN PRINTING CO., LTD., Technical Research Institute, 4-2-3 Takanodaiminami, Sugito-machi, Saitama, 345-8508, Japan
| | - Michiya Matsusaki
- Osaka University, Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, 2-1 Yamadaoka, Suita Osaka, 565-0871, Japan
- Osaka University, Graduate School of Engineering, Department of Applied Chemistry, 2-1 Yamadaoka, Suita Osaka, 565-0871, Japan
- Corresponding author. Osaka, 565-0871, 2-1 Yamadaoka, Suita, Japan.
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27
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Frazier TP, Hamel K, Wu X, Rogers E, Lassiter H, Robinson J, Mohiuddin O, Henderson M, Gimble JM. Adipose-derived cells: building blocks of three-dimensional microphysiological systems. BIOMATERIALS TRANSLATIONAL 2021; 2:301-306. [PMID: 35837416 PMCID: PMC9255798 DOI: 10.12336/biomatertransl.2021.04.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 11/15/2022]
Abstract
Microphysiological systems (MPS) created with human-derived cells and biomaterial scaffolds offer a potential in vitro alternative to in vivo animal models. The adoption of three-dimensional MPS models has economic, ethical, regulatory, and scientific implications for the fields of regenerative medicine, metabolism/obesity, oncology, and pharmaceutical drug discovery. Key opinion leaders acknowledge that MPS tools are uniquely positioned to aid in the objective to reduce, refine, and eventually replace animal experimentation while improving the accuracy of the finding's clinical translation. Adipose tissue has proven to be an accessible and available source of human-derived stromal vascular fraction (SVF) cells, a heterogeneous population available at point of care, and adipose-derived stromal/stem cells, a relatively homogeneous population requiring plastic adherence and culture expansion of the SVF cells. The adipose-derived stromal/stem cells or SVF cells, in combination with human tissue or synthetic biomaterial scaffolds, can be maintained for extended culture periods as three-dimensional MPS models under angiogenic, stromal, adipogenic, or osteogenic conditions. This review highlights recent literature relating to the versatile use of adipose-derived cells as fundamental components of three-dimensional MPS models for discovery research and development. In this context, it compares the merits and limitations of the adipose-derived stromal/stem cells relative to SVF cell models and considers the likely directions that this emerging field of scientific discovery will take in the near future.
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Affiliation(s)
- Trivia P. Frazier
- Obatala Sciences Inc., New Orleans, LA, USA,Corresponding author: Trivia Frazier,
| | | | - Xiying Wu
- Obatala Sciences Inc., New Orleans, LA, USA
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28
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Tanataweethum N, Trang A, Lee C, Mehta J, Patel N, Cohen RN, Bhushan A. Investigation of insulin resistance through a multiorgan microfluidic organ-on-chip. Biomed Mater 2021; 17. [PMID: 34942604 DOI: 10.1088/1748-605x/ac4611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 12/23/2021] [Indexed: 11/12/2022]
Abstract
The development of hepatic insulin resistance (IR) is a critical factor in developing type 2 diabetes (T2D), where insulin fails to inhibit hepatic glucose production but retains its capacity to promote hepatic lipogenesis. Improving insulin sensitivity can be effective in preventing and treating T2D. However, selective control of glucose and lipid synthesis has been difficult. It is known that excess white adipose tissue is detrimental to insulin sensitivity, whereas brown adipose tissue transplantation can restore it in diabetic mice. However, challenges remain in our understanding of liver-adipose communication because the confounding effects of hypothalamic regulation of metabolic function cannot be ruled out in previous studies. There is a lack of in vitro models that use primary cells to study cellular-crosstalk under insulin resistant conditions. Building upon our previous work on the microfluidic primary liver and adipose organ-on-chips, we report for the first time the development of integrated insulin resistant liver-adipose (white and brown) organ-on-chip. The design of the microfluidic device was carried out using computational fluid dynamics; the experimental studies were conducted by carrying out detailed biochemical analysis RNA-seq analysis on both cell types. Further, we tested the hypothesis that brown adipocytes regulated both hepatic insulin sensitivity and lipogenesis. Our results show effective co-modulation of hepatic glucose and lipid synthesis through a platform for identifying potential therapeutics for IR and diabetes.
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Affiliation(s)
- Nida Tanataweethum
- Biomedical Engineering, Illinois Institute of Technology, Dept of Biomedical Engineering, 3255 South dearborn street, Chicago, Chicago, Illinois, 60616-3717, UNITED STATES
| | - Allyson Trang
- Biomedical Engineering, Illinois Institute of Technology, Dept of Biomedical Engineering, 3255 South Dearborn Street Wishnick Hall, Suite 314, Chicago, Chicago, Illinois, 60616-3717, UNITED STATES
| | - Chaeeun Lee
- Biomedical Engineering, Illinois Institute of Technology, Dept of Biomedical Engineering, 3255 South Dearborn Street Wishnick Hall, Suite 314, Chicago, Chicago, Illinois, 60616-3717, UNITED STATES
| | - Jhalak Mehta
- Biomedical Engineering, Illinois Institute of Technology, Dept of Biomedical Engineering, 3255 South dearborn street, Chicago, Chicago, Illinois, 60616-3717, UNITED STATES
| | - Neha Patel
- Illinois Institute of Technology, Dept of Biomedical Engineering, 3255 South dearborn street, Chicago, Chicago, Illinois, 60616-3717, UNITED STATES
| | - Ronald N Cohen
- Department of Medicine, The University of Chicago, 5841 S. Maryland Avenue, MC 1027, Chicago, Chicago, Illinois, 60637-1476, UNITED STATES
| | - Abhinav Bhushan
- Biomedical Engineering, Illinois Institute of Technology, 3255 S Dearborn St, Wishnick 314, Chicago, Chicago, Illinois, 60616-3717, UNITED STATES
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29
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Brock CK, Hebert KL, Artiles M, Wright MK, Cheng T, Windsor GO, Nguyen K, Alzoubi MS, Collins-Burow BM, Martin EC, Lau FH, Bunnell BA, Burow ME. A Role for Adipocytes and Adipose Stem Cells in the Breast Tumor Microenvironment and Regenerative Medicine. Front Physiol 2021; 12:751239. [PMID: 34912237 PMCID: PMC8667576 DOI: 10.3389/fphys.2021.751239] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 11/01/2021] [Indexed: 12/15/2022] Open
Abstract
Obesity rates are climbing, representing a confounding and contributing factor to many disease states, including cancer. With respect to breast cancer, obesity plays a prominent role in the etiology of this disease, with certain subtypes such as triple-negative breast cancer having a strong correlation between obesity and poor outcomes. Therefore, it is critical to examine the obesity-related alterations to the normal stroma and the tumor microenvironment (TME). Adipocytes and adipose stem cells (ASCs) are major components of breast tissue stroma that have essential functions in both physiological and pathological states, including energy storage and metabolic homeostasis, physical support of breast epithelial cells, and directing inflammatory and wound healing responses through secreted factors. However, these processes can become dysregulated in both metabolic disorders, such as obesity and also in the context of breast cancer. Given the well-established obesity-neoplasia axis, it is critical to understand how interactions between different cell types in the tumor microenvironment, including adipocytes and ASCs, govern carcinogenesis, tumorigenesis, and ultimately metastasis. ASCs and adipocytes have multifactorial roles in cancer progression; however, due to the plastic nature of these cells, they also have a role in regenerative medicine, making them promising tools for tissue engineering. At the physiological level, the interactions between obesity and breast cancer have been examined; here, we will delineate the mechanisms that regulate ASCs and adipocytes in these different contexts through interactions between cancer cells, immune cells, and other cell types present in the tumor microenvironment. We will define the current state of understanding of how adipocytes and ASCs contribute to tumor progression through their role in the tumor microenvironment and how this is altered in the context of obesity. We will also introduce recent developments in utilizing adipocytes and ASCs in novel approaches to breast reconstruction and regenerative medicine.
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Affiliation(s)
- Courtney K Brock
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Katherine L Hebert
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Maria Artiles
- Department of Microbiology, Immunology, and Genetics, University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Maryl K Wright
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Thomas Cheng
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Gabrielle O Windsor
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Khoa Nguyen
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Madlin S Alzoubi
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Bridgette M Collins-Burow
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Elizabeth C Martin
- Department of Biological and Agricultural Engineering, Louisiana State University, Baton Rouge, LA, United States
| | - Frank H Lau
- Section of Plastic & Reconstructive Surgery, Department of Surgery, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Bruce A Bunnell
- Department of Microbiology, Immunology, and Genetics, University of North Texas Health Science Center, Fort Worth, TX, United States
| | - Matthew E Burow
- Section of Hematology and Oncology, Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
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30
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Kim M, Jang J. Construction of 3D hierarchical tissue platforms for modeling diabetes. APL Bioeng 2021; 5:041506. [PMID: 34703970 PMCID: PMC8530538 DOI: 10.1063/5.0055128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 09/27/2021] [Indexed: 12/14/2022] Open
Abstract
Diabetes mellitus (DM) is one of the most serious systemic diseases worldwide, and the majority of DM patients face severe complications. However, many of underlying disease mechanisms related to these complications are difficult to understand with the use of currently available animal models. With the urgent need to fundamentally understand DM pathology, a variety of 3D biomimetic platforms have been generated by the convergence of biofabrication and tissue engineering strategies for the potent drug screening platform of pre-clinical research. Here, we suggest key requirements for the fabrication of physiomimetic tissue models in terms of recapitulating the cellular organization, creating native 3D microenvironmental niches for targeted tissue using biomaterials, and applying biofabrication technologies to implement tissue-specific geometries. We also provide an overview of various in vitro DM models, from a cellular level to complex living systems, which have been developed using various bioengineering approaches. Moreover, we aim to discuss the roadblocks facing in vitro tissue models and end with an outlook for future DM research.
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Affiliation(s)
- Myungji Kim
- School of Interdisciplinary Bioscience and Bioengineering, POSTECH, 77 Cheongam-ro, Namgu, Pohang, Kyungbuk, 37673, Republic of Korea
| | - Jinah Jang
- Author to whom correspondence should be addressed:
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31
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Isolation, Integration, and Culture of Human Mature Adipocytes Leveraging Organ-on-Chip Technology. Methods Mol Biol 2021. [PMID: 34520020 DOI: 10.1007/978-1-0716-1693-2_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Research on white adipose tissue (WAT), which constitutes one-fifth to one-half of the total body mass of a human's body, has gained more and more interest and attention in the era of "diabesity". In vitro research on mature human WAT is hampered by many challenges and, hence, a majority of WAT-related research is conducted using animal models as well as clinical observations and genome-wide association studies (GWAS), both featuring limitations in terms of translatability and potential for experimental interventions, respectively. Here, we describe methods to isolate primary mature human adipocytes from biopsies and to fabricate tailored organ-on-chip platforms for the long-term culture of WAT constructs.
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32
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Schneider MR. Losing fat through the skin. Science 2021; 373:487-488. [PMID: 34326221 DOI: 10.1126/science.abg9079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Marlon R Schneider
- German Centre for the Protection of Laboratory Animals (Bf3R), German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
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33
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Chen H, Wang X, Wang J, Shi X, Li X, Wang J, Li D, Zhu Y, Tan W, Tan Z. In vitroadipogenesis and long-term adipocyte culture in adipose tissue-derived cell banks. Biofabrication 2021; 13. [PMID: 34044385 DOI: 10.1088/1758-5090/ac0610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 05/27/2021] [Indexed: 11/12/2022]
Abstract
There is a critical need to developin vitroculture systems appropriate for the expansion of adipose tissue, in order to gain new insights into metabolic diseases and to assist in the restoration of tissue defects. Conventional two- or three-dimensional (2D or 3D)in vitromodels of adipocytes require a combination of supplements to induce adipocyte maturation that greatly increases the cost of large-scale industrial production. In the present study, a microporous, perforated bacterial cellulose (BC)-assisted culture system was developed that promoted the adhesion, proliferation, and adipogenic differentiation of preadipocytes. Additionally, the system maintained the cells as mature unilocular adipocytesex vivoin normal cell culture medium in long-term culture. All cells were derived from isolated adipose tissue without the use of expensive enzymes for tissue digestion. In contrast to culture in hard tissue culture plates, preadipocytes in the soft 3D environments formed multidimensional interlaced cell contacts, undergoing significant spontaneous lipid accumulation and could be cultured for up to threemonths in maintenance medium. More importantly, the cultured adipose tissue-derived cell bank created here was able to produce injury repair activators that promoted the proliferation of fibroblasts with little fibrosis and the functional differentiation of myoblasts, displaying the potential for use in adipose reconstruction. Thus, the present study demonstrates the potential of a mechanically flexible BC scaffold to generate volume tunable adipose constructs and provides a low-cost and user-friendly strategy for large-scale industrial production of adipose tissue.
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Affiliation(s)
- Haoxiang Chen
- College of Biology, Hunan University, Changsha, Hunan 410082, People's Republic of China.,State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan 410082, People's Republic of China
| | - Xiaocheng Wang
- College of Biology, Hunan University, Changsha, Hunan 410082, People's Republic of China
| | - Jian Wang
- College of Biology, Hunan University, Changsha, Hunan 410082, People's Republic of China.,State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan 410082, People's Republic of China
| | - Xuelei Shi
- College of Biology, Hunan University, Changsha, Hunan 410082, People's Republic of China
| | - Xinghuan Li
- College of Biology, Hunan University, Changsha, Hunan 410082, People's Republic of China
| | - Jianlong Wang
- Department of Orthopedics, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, People's Republic of China
| | - Dan Li
- College of Biology, Hunan University, Changsha, Hunan 410082, People's Republic of China
| | - Yonghua Zhu
- College of Biology, Hunan University, Changsha, Hunan 410082, People's Republic of China
| | - Weihong Tan
- College of Biology, Hunan University, Changsha, Hunan 410082, People's Republic of China
| | - Zhikai Tan
- College of Biology, Hunan University, Changsha, Hunan 410082, People's Republic of China.,State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan 410082, People's Republic of China
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Maulana TI, Kromidas E, Wallstabe L, Cipriano M, Alb M, Zaupa C, Hudecek M, Fogal B, Loskill P. Immunocompetent cancer-on-chip models to assess immuno-oncology therapy. Adv Drug Deliv Rev 2021; 173:281-305. [PMID: 33798643 DOI: 10.1016/j.addr.2021.03.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 03/08/2021] [Accepted: 03/17/2021] [Indexed: 12/12/2022]
Abstract
The advances in cancer immunotherapy come with several obstacles, limiting its widespread use and benefits so far only to a small subset of patients. One of the underlying challenges remains to be the lack of representative nonclinical models that translate to human immunity and are able to predict clinical efficacy and safety outcomes. In recent years, immunocompetent Cancer-on-Chip models emerge as an alternative human-based platform that enables the integration and manipulation of complex tumor microenvironment. In this review, we discuss novel opportunities offered by Cancer-on-Chip models to advance (mechanistic) immuno-oncology research, ranging from design flexibility to multimodal analysis approaches. We then exemplify their (potential) applications for the research and development of adoptive cell therapy, immune checkpoint therapy, cytokine therapy, oncolytic virus, and cancer vaccines.
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Schneider S, Gruner D, Richter A, Loskill P. Membrane integration into PDMS-free microfluidic platforms for organ-on-chip and analytical chemistry applications. LAB ON A CHIP 2021; 21:1866-1885. [PMID: 33949565 DOI: 10.1039/d1lc00188d] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Membranes play a crucial role in many microfluidic systems, enabling versatile applications in highly diverse research fields. However, the tight and robust integration of membranes into microfluidic systems requires complex fabrication processes. Most integration approaches, so far, rely on polydimethylsiloxane (PDMS) as base material for the microfluidic chips. Several limitations of PDMS have resulted in the transition of many microfluidic approaches to PDMS-free systems using alternative materials such as thermoplastics. To integrate membranes in those PDMS-free systems, novel alternative approaches are required. This review provides an introduction into microfluidic systems applying membrane technology for analytical systems and organ-on-chip as well as a comprehensive overview of methods for the integration of membranes into PDMS-free systems. The overview and examples will provide a valuable resource and starting point for any researcher that is aiming at implementing membranes in microfluidic systems without using PDMS.
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Affiliation(s)
- Stefan Schneider
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, 70569 Stuttgart, Germany
| | - Denise Gruner
- Institut für Halbleiter- und Mikrosystemtechnik, Technische Universität Dresden, 01062 Dresden, Germany and Universitätsklinikum Carl Gustav Carus Dresden, Institut für Klinische Chemie und Laboratoriumsmedizin, 01307 Dresden, Germany
| | - Andreas Richter
- Institut für Halbleiter- und Mikrosystemtechnik, Technische Universität Dresden, 01062 Dresden, Germany
| | - Peter Loskill
- Department of Biomedical Science, Faculty of Medicine, Eberhard Karls University Tübingen, 72076 Tübingen, Germany. and NMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany
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36
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Schneider S, Brás EJS, Schneider O, Schlünder K, Loskill P. Facile Patterning of Thermoplastic Elastomers and Robust Bonding to Glass and Thermoplastics for Microfluidic Cell Culture and Organ-on-Chip. MICROMACHINES 2021; 12:575. [PMID: 34070209 PMCID: PMC8158514 DOI: 10.3390/mi12050575] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 02/06/2023]
Abstract
The emergence and spread of microfluidics over the last decades relied almost exclusively on the elastomer polydimethylsiloxane (PDMS). The main reason for the success of PDMS in the field of microfluidic research is its suitability for rapid prototyping and simple bonding methods. PDMS allows for precise microstructuring by replica molding and bonding to different substrates through various established strategies. However, large-scale production and commercialization efforts are hindered by the low scalability of PDMS-based chip fabrication and high material costs. Furthermore, fundamental limitations of PDMS, such as small molecule absorption and high water evaporation, have resulted in a shift toward PDMS-free systems. Thermoplastic elastomers (TPE) are a promising alternative, combining properties from both thermoplastic materials and elastomers. Here, we present a rapid and scalable fabrication method for microfluidic systems based on a polycarbonate (PC) and TPE hybrid material. Microstructured PC/TPE-hybrid modules are generated by hot embossing precise features into the TPE while simultaneously fusing the flexible TPE to a rigid thermoplastic layer through thermal fusion bonding. Compared to TPE alone, the resulting, more rigid composite material improves device handling while maintaining the key advantages of TPE. In a fast and simple process, the PC/TPE-hybrid can be bonded to several types of thermoplastics as well as glass substrates. The resulting bond strength withstands at least 7.5 bar of applied pressure, even after seven days of exposure to a high-temperature and humid environment, which makes the PC/TPE-hybrid suitable for most microfluidic applications. Furthermore, we demonstrate that the PC/TPE-hybrid features low absorption of small molecules while being biocompatible, making it a suitable material for microfluidic biotechnological applications.
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Affiliation(s)
- Stefan Schneider
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, 70569 Stuttgart, Germany; (S.S.); (O.S.)
| | - Eduardo J. S. Brás
- NMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany; (E.J.S.B.); (K.S.)
| | - Oliver Schneider
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, 70569 Stuttgart, Germany; (S.S.); (O.S.)
| | - Katharina Schlünder
- NMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany; (E.J.S.B.); (K.S.)
- Department of Biomedical Engineering, Faculty of Medicine, Eberhard Karls University Tübingen, 72076 Tübingen, Germany
| | - Peter Loskill
- NMI Natural and Medical Sciences Institute at the University of Tübingen, 72770 Reutlingen, Germany; (E.J.S.B.); (K.S.)
- Department of Biomedical Engineering, Faculty of Medicine, Eberhard Karls University Tübingen, 72076 Tübingen, Germany
- 3R Center Tübingen for In Vitro Models and Alternatives to Animal Testing, 72076 Tübingen, Germany
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37
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The Inflammatory Profile of Obesity and the Role on Pulmonary Bacterial and Viral Infections. Int J Mol Sci 2021; 22:ijms22073456. [PMID: 33810619 PMCID: PMC8037155 DOI: 10.3390/ijms22073456] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/19/2021] [Accepted: 03/23/2021] [Indexed: 12/16/2022] Open
Abstract
Obesity is a globally increasing health problem, entailing diverse comorbidities such as infectious diseases. An obese weight status has marked effects on lung function that can be attributed to mechanical dysfunctions. Moreover, the alterations of adipocyte-derived signal mediators strongly influence the regulation of inflammation, resulting in chronic low-grade inflammation. Our review summarizes the known effects regarding pulmonary bacterial and viral infections. For this, we discuss model systems that allow mechanistic investigation of the interplay between obesity and lung infections. Overall, obesity gives rise to a higher susceptibility to infectious pathogens, but the pathogenetic process is not clearly defined. Whereas, viral infections often show a more severe course in obese patients, the same patients seem to have a survival benefit during bacterial infections. In particular, we summarize the main mechanical impairments in the pulmonary tract caused by obesity. Moreover, we outline the main secretory changes within the expanded adipose tissue mass, resulting in chronic low-grade inflammation. Finally, we connect these altered host factors to the influence of obesity on the development of lung infection by summarizing observations from clinical and experimental data.
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38
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Louis F, Piantino M, Liu H, Kang DH, Sowa Y, Kitano S, Matsusaki M. Bioprinted Vascularized Mature Adipose Tissue with Collagen Microfibers for Soft Tissue Regeneration. CYBORG AND BIONIC SYSTEMS 2021; 2021:1412542. [PMID: 36285131 PMCID: PMC9494725 DOI: 10.34133/2021/1412542] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 02/06/2021] [Indexed: 12/02/2022] Open
Abstract
The development of soft tissue regeneration has recently gained importance due to safety concerns about artificial breast implants. Current autologous fat graft implantations can result in up to 90% of volume loss in long-term outcomes due to their limited revascularization. Adipose tissue has a highly vascularized structure which enables its proper homeostasis as well as its endocrine function. Mature adipocytes surrounded by a dense vascular network are the specific features required for efficient regeneration of the adipose tissue to perform host anastomosis after its implantation. Recently, bioprinting has been introduced as a promising solution to recreate in vitro this architecture in large-scale tissues. However, the in vitro induction of both the angiogenesis and adipogenesis differentiations from stem cells yields limited maturation states for these two pathways. To overcome these issues, we report a novel method for obtaining a fully vascularized adipose tissue reconstruction using supporting bath bioprinting. For the first time, directly isolated mature adipocytes encapsulated in a bioink containing physiological collagen microfibers (CMF) were bioprinted in a gellan gum supporting bath. These multilayered bioprinted tissues retained high viability even after 7 days of culture. Moreover, the functionality was also confirmed by the maintenance of fatty acid uptake from mature adipocytes. Therefore, this method of constructing fully functional adipose tissue regeneration holds promise for future clinical applications.
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Affiliation(s)
- Fiona Louis
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, Osaka University, Japan
| | - Marie Piantino
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Japan
| | - Hao Liu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Japan
| | - Dong-Hee Kang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Japan
| | - Yoshihiro Sowa
- Department of Plastic and Reconstructive Surgery, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Japan
| | - Shiro Kitano
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, Osaka University, Japan
- Toppan Printing Co., Ltd., Tokyo, Japan
| | - Michiya Matsusaki
- Joint Research Laboratory (TOPPAN) for Advanced Cell Regulatory Chemistry, Graduate School of Engineering, Osaka University, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Japan
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39
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Lewis PL, Wells JM. Engineering-inspired approaches to study β-cell function and diabetes. Stem Cells 2021; 39:522-535. [PMID: 33497522 DOI: 10.1002/stem.3340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 01/13/2021] [Indexed: 12/21/2022]
Abstract
Strategies to mitigate the pathologies from diabetes range from simply administering insulin to prescribing complex drug/biologic regimens combined with lifestyle changes. There is a substantial effort to better understand β-cell physiology during diabetes pathogenesis as a means to develop improved therapies. The convergence of multiple fields ranging from developmental biology to microfluidic engineering has led to the development of new experimental systems to better study complex aspects of diabetes and β-cell biology. Here we discuss the available insulin-secreting cell types used in research, ranging from primary human β-cells, to cell lines, to pluripotent stem cell-derived β-like cells. Each of these sources possess inherent strengths and weaknesses pertinent to specific applications, especially in the context of engineered platforms. We then outline how insulin-expressing cells have been used in engineered platforms and how recent advances allow for better mimicry of in vivo conditions. Chief among these conditions are β-cell interactions with other endocrine organs. This facet is beginning to be thoroughly addressed by the organ-on-a-chip community, but holds enormous potential in the development of novel diabetes therapeutics. Furthermore, high throughput strategies focused on studying β-cell biology, improving β-cell differentiation, or proliferation have led to enormous contributions in the field and will no doubt be instrumental in bringing new diabetes therapeutics to the clinic.
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Affiliation(s)
- Phillip L Lewis
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - James M Wells
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Division of Endocrinology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Center for Stem Cell and Organoid Medicine (CuSTOM), Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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40
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Moysidou CM, Barberio C, Owens RM. Advances in Engineering Human Tissue Models. Front Bioeng Biotechnol 2021; 8:620962. [PMID: 33585419 PMCID: PMC7877542 DOI: 10.3389/fbioe.2020.620962] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 12/22/2020] [Indexed: 12/11/2022] Open
Abstract
Research in cell biology greatly relies on cell-based in vitro assays and models that facilitate the investigation and understanding of specific biological events and processes under different conditions. The quality of such experimental models and particularly the level at which they represent cell behavior in the native tissue, is of critical importance for our understanding of cell interactions within tissues and organs. Conventionally, in vitro models are based on experimental manipulation of mammalian cells, grown as monolayers on flat, two-dimensional (2D) substrates. Despite the amazing progress and discoveries achieved with flat biology models, our ability to translate biological insights has been limited, since the 2D environment does not reflect the physiological behavior of cells in real tissues. Advances in 3D cell biology and engineering have led to the development of a new generation of cell culture formats that can better recapitulate the in vivo microenvironment, allowing us to examine cells and their interactions in a more biomimetic context. Modern biomedical research has at its disposal novel technological approaches that promote development of more sophisticated and robust tissue engineering in vitro models, including scaffold- or hydrogel-based formats, organotypic cultures, and organs-on-chips. Even though such systems are necessarily simplified to capture a particular range of physiology, their ability to model specific processes of human biology is greatly valued for their potential to close the gap between conventional animal studies and human (patho-) physiology. Here, we review recent advances in 3D biomimetic cultures, focusing on the technological bricks available to develop more physiologically relevant in vitro models of human tissues. By highlighting applications and examples of several physiological and disease models, we identify the limitations and challenges which the field needs to address in order to more effectively incorporate synthetic biomimetic culture platforms into biomedical research.
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Affiliation(s)
| | | | - Róisín Meabh Owens
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
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41
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Schneider S, Erdemann F, Schneider O, Hutschalik T, Loskill P. Organ-on-a-disc: A platform technology for the centrifugal generation and culture of microphysiological 3D cell constructs amenable for automation and parallelization. APL Bioeng 2020; 4:046101. [PMID: 33062909 PMCID: PMC7532019 DOI: 10.1063/5.0019766] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 09/13/2020] [Indexed: 12/18/2022] Open
Abstract
Organ-on-a-chip (OoC) systems have evolved to a promising alternative to animal testing and traditional cell assays in drug development and enable personalization for precision medicine. So far, most OoCs do not fully exploit the potential of microfluidic systems regarding parallelization and automation. To date, many OoCs still consist of individual units, integrating only one single tissue per chip, and rely on manual, error-prone handling. However, with limited parallelization and automation, OoCs remain a low-throughput technology, preventing their widespread application in industry. To advance the concept of microphysiological systems and to overcome the limitations of current OoCs, we developed the Organ-on-a-disc (Organ-Disc) technology. Driven only by rotation, Organ-Discs enable the parallelized generation and culture of multiple 3D cell constructs per disc. We fabricated polydimethylsiloxane-free Organ-Discs using thermoplastic materials and scalable fabrication techniques. Utilizing precisely controllable centrifugal forces, cells were loaded simultaneously into 20 tissue chambers, where they formed uniform cell pellets. Subsequently, the cells compacted into dense 3D cell constructs and were cultured under vasculature-like perfusion through pump- and tubing-free, centrifugal pumping, solely requiring a low-speed rotation (<1 g) of the Organ-Disc. Here, we provide a proof-of-concept of the Organ-Disc technology, showing the parallelized generation of tissue-like cell constructs and demonstrating the controlled centrifugal perfusion. Furthermore, Organ-Discs enable versatile tissue engineering, generating cell constructs with a customizable shape and a layered multi-cell type structure. Overall, the Organ-Disc provides a user-friendly platform technology for the parallelization and automation of microphysiological systems, bringing this technology one-step closer to high-throughput applications in industry.
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Affiliation(s)
- Stefan Schneider
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstrasse 12, 70569 Stuttgart, Germany
| | - Florian Erdemann
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstrasse 12, 70569 Stuttgart, Germany
| | - Oliver Schneider
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstrasse 12, 70569 Stuttgart, Germany
| | - Thomas Hutschalik
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstrasse 12, 70569 Stuttgart, Germany
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Bahmad HF, Daouk R, Azar J, Sapudom J, Teo JCM, Abou-Kheir W, Al-Sayegh M. Modeling Adipogenesis: Current and Future Perspective. Cells 2020; 9:cells9102326. [PMID: 33092038 PMCID: PMC7590203 DOI: 10.3390/cells9102326] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/07/2020] [Accepted: 10/16/2020] [Indexed: 02/07/2023] Open
Abstract
Adipose tissue is contemplated as a dynamic organ that plays key roles in the human body. Adipogenesis is the process by which adipocytes develop from adipose-derived stem cells to form the adipose tissue. Adipose-derived stem cells’ differentiation serves well beyond the simple goal of producing new adipocytes. Indeed, with the current immense biotechnological advances, the most critical role of adipose-derived stem cells remains their tremendous potential in the field of regenerative medicine. This review focuses on examining the physiological importance of adipogenesis, the current approaches that are employed to model this tightly controlled phenomenon, and the crucial role of adipogenesis in elucidating the pathophysiology and potential treatment modalities of human diseases. The future of adipogenesis is centered around its crucial role in regenerative and personalized medicine.
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Affiliation(s)
- Hisham F. Bahmad
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, 1107 2260 Beirut, Lebanon; (H.F.B.); (R.D.); (J.A.)
| | - Reem Daouk
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, 1107 2260 Beirut, Lebanon; (H.F.B.); (R.D.); (J.A.)
| | - Joseph Azar
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, 1107 2260 Beirut, Lebanon; (H.F.B.); (R.D.); (J.A.)
| | - Jiranuwat Sapudom
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, 2460 Abu Dhabi, UAE;
| | - Jeremy C. M. Teo
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, 2460 Abu Dhabi, UAE;
- Correspondence: (J.C.M.T.); (W.A.-K.); (M.A.-S.); Tel.: +97126286689 (J.C.M.T.); +9611350000 (ext. 4778) (W.A.-K.); +97126284560 (M.A.-S.)
| | - Wassim Abou-Kheir
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, 1107 2260 Beirut, Lebanon; (H.F.B.); (R.D.); (J.A.)
- Correspondence: (J.C.M.T.); (W.A.-K.); (M.A.-S.); Tel.: +97126286689 (J.C.M.T.); +9611350000 (ext. 4778) (W.A.-K.); +97126284560 (M.A.-S.)
| | - Mohamed Al-Sayegh
- Biology Division, New York University Abu Dhabi, 2460 Abu Dhabi, UAE
- Correspondence: (J.C.M.T.); (W.A.-K.); (M.A.-S.); Tel.: +97126286689 (J.C.M.T.); +9611350000 (ext. 4778) (W.A.-K.); +97126284560 (M.A.-S.)
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Khalil AS, Jaenisch R, Mooney DJ. Engineered tissues and strategies to overcome challenges in drug development. Adv Drug Deliv Rev 2020; 158:116-139. [PMID: 32987094 PMCID: PMC7518978 DOI: 10.1016/j.addr.2020.09.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/29/2020] [Accepted: 09/23/2020] [Indexed: 12/16/2022]
Abstract
Current preclinical studies in drug development utilize high-throughput in vitro screens to identify drug leads, followed by both in vitro and in vivo models to predict lead candidates' pharmacokinetic and pharmacodynamic properties. The goal of these studies is to reduce the number of lead drug candidates down to the most likely to succeed in later human clinical trials. However, only 1 in 10 drug candidates that emerge from preclinical studies will succeed and become an approved therapeutic. Lack of efficacy or undetected toxicity represents roughly 75% of the causes for these failures, despite these parameters being the primary exclusion criteria in preclinical studies. Recently, advances in both biology and engineering have created new tools for constructing new preclinical models. These models can complement those used in current preclinical studies by helping to create more realistic representations of human tissues in vitro and in vivo. In this review, we describe current preclinical models to identify their value and limitations and then discuss select areas of research where improvements in preclinical models are particularly needed to advance drug development. Following this, we discuss design considerations for constructing preclinical models and then highlight recent advances in these efforts. Taken together, we aim to review the advances as of 2020 surrounding the prospect of biological and engineering tools for adding enhanced biological relevance to preclinical studies to aid in the challenges of failed drug candidates and the burden this poses on the drug development enterprise and thus healthcare.
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Affiliation(s)
- Andrew S Khalil
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02115, USA; Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Rudolf Jaenisch
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA.
| | - David J Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02115, USA.
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