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3D engineered tissue models for studying human-specific infectious viral diseases

Bioactive Materials 2023年第3期21卷 576-594页

作者： Kyeong Seob Hwang Eun U Seo nakwon choi Jongbaeg Kim Hong Nam Kim Brain Science Institute Korea Institute of Science and Technology(KIST)Seoul02792Republic of Korea School of Mechanical Engineering Yonsei UniversitySeoul03722Republic of Korea Yonsei-KIST Convergence Research Institute Yonsei UniversitySeoul03722Republic of Korea Division of Bio-Medical Science&Technology KIST SchoolKorea University of Science and Technology(UST)Seoul02792Republic of Korea KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoul02841Republic of Korea

Viral infections cause damage to various organ systems by inducing organ-specific symptoms or systemic multi-organ *** on the infection route and virus type,infectious diseases are classified as respiratory,nervous,immune,digestive,or skin *** these infectious diseases can widely spread in the com-munity and their catastrophic effects are severe,identification of their causative agent and mechanisms un-derlying their pathogenesis is an urgent *** infection-associated mechanisms have been studied in two-dimensional(2D)cell culture models and animal models,they have shown limitations in organ-specific or human-associated pathogenesis,and the development of a human-organ-mimetic system is ***,three-dimensional(3D)engineered tissue models,which can present human organ-like physiology in terms of the 3D structure,utilization of human-originated cells,recapitulation of physiological stimuli,and tight cell–cell interactions,were ***,recent studies have shown that these models can recapitulate infection-associated *** this review,we summarized the recent advances in 3D engineered tissue models that mimic organ-specific viral ***,we briefly described the limitations of the current 2D and animal models in recapitulating human-specific viral infection ***,we provided an overview of recently reported viral infection models,focusing particularly on organ-specific infection ***,a future perspective that must be pursued to reconstitute more human-specific infectious diseases is presented.

关键词： 3D engineered tissue model Infectious viral disease Infection route Pathology In vivo-mimicking

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Brain physiome:A concept bridging in vitro 3D brain models and in silico models for predicting drug toxicity in the brain

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Bioactive Materials 2022年第7期7卷 135-148页

作者： Yoojin Seo Seokyoung Bang Jeongtae Son Dongsup Kim Yong Jeong Pilnam Kim Jihun Yang Joon-Ho Eom nakwon choi Hong Nam Kim Brain Science Institute Korea Institute of Science and Technology(KIST)Seoul02792Republic of Korea Department of Bio and Brain Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon34141Republic of Korea Next&Bio Inc. Seoul02841Republic of Korea Medical Device Research Division National Institute of Food and Drug Safety EvaluationCheongju28159Republic of Korea Division of Bio-Medical Science&Technology KIST SchoolKorea University of Science and Technology(UST)Seoul02792Republic of Korea KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoul02841Republic of Korea School of Mechanical Engineering Yonsei UniversitySeoul03722Republic of Korea Yonsei-KIST Convergence Research Institute Yonsei UniversitySeoul03722Republic of Korea

In the last few decades,adverse reactions to pharmaceuticals have been evaluated using 2D in vitro models and animal ***,with increasing computational power,and as the key drivers of cellular behavior have been identified,in silico models have *** models are time-efficient and cost-effective,but the prediction of adverse reactions to unknown drugs using these models requires relevant experimental ***,the physiome concept has emerged to bridge experimental datasets with in silico *** brain physiome describes the systemic interactions of its components,which are organized into a multilevel *** of the limitations in obtaining experimental data corresponding to each physiome component from 2D in vitro models and animal models,3D in vitro brain models,including brain organoids and brain-on-a-chip,have been *** this review,we present the concept of the brain physiome and its hierarchical organization,including cell-and tissue-level *** also summarize recently developed 3D in vitro brain models and link them with the elements of the brain physiome as a guideline for dataset *** connection between in vitro 3D brain models and in silico modeling will lead to the establishment of cost-effective and time-efficient in silico models for the prediction of the safety of unknown drugs.

关键词： Brain physiome In vitro 3D platform Brain organoid Brain-on-a-chip In silico model

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A MEMS ultrasound stimulation system for modulation of neural circuits with high spatial resolution in vitro

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Microsystems & Nanoengineering 2019年第1期5卷 356-366页

作者： Jungpyo Lee Kyungmin Ko Hyogeun Shin Soo-Jin Oh CJustin Lee Namsun Chou nakwon choi Min Tack Oh Byung Chul Lee Seong Chan Jun Il-Joo Cho Center for BioMicrosystems Brain Science InstituteKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea School of Mechanical Engineering Yonsei UniversitySeoul 03722Republic of Korea Division of Bio-Medical Science&Technology KIST SchoolKorea University of Science and Technology(UST)Seoul 02792Republic of Korea Center for Neuroscience Brain Science InstituteKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Convergence Research Center for Diagnosis Treatmentand Care System of DementiaKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Center for Glia-Neuron Interaction Korea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoul 02841Republic of Korea Division of Bio-Medical Science&Technology KIST SchoolKorea University of Science and TechnologyUSTYuseong-guDaejeon 34113Republic of Korea

Neuromodulation by ultrasound has recently received attention due to its noninvasive stimulation capability for treating brain *** there have been several studies related to ultrasonic neuromodulation,these studies have suffered from poor spatial resolution of the ultrasound and low repeatability with a fixed condition caused by conventional and commercialized ultrasound *** addition,the underlying physics and mechanisms of ultrasonic neuromodulation are still *** determine these mechanisms and accurately modulate neural circuits,researchers must have a precisely controllable ultrasound transducer to conduct experiments at the cellular ***,we introduce a new MEMS ultrasound stimulation system for modulating neurons or brain slices with high spatial *** piezoelectric micromachined ultrasonic transducers(pMUTs)with small membranes(submm membranes)generate enough power to stimulate neurons and enable precise modulation of neural *** designed the ultrasound transducer as an array structure to enable localized modulation in the target *** addition,we integrated a cell culture chamber with the system to make it compatible with conventional cell-based experiments,such as in vitro cell cultures and brain *** this work,we successfully demonstrated the functionality of the system by showing that the number of responding cells is proportional to the acoustic intensity of the applied *** also demonstrated localized stimulation capability with high spatial resolution by conducting experiments in which cocultured cells responded only around a working transducer.

关键词： neural stimulation system

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