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Rabbani R, Najafiaghdam H, Roschelle M, Papageorgiou EP, Zhao BR, Ghanbari MM, Muller R, Stojanovic V, Anwar M. Towards A Wireless Image Sensor for Real-Time Fluorescence Microscopy in Cancer Therapy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.03.569779. [PMID: 38106190 PMCID: PMC10723303 DOI: 10.1101/2023.12.03.569779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
We present a mm-sized, ultrasonically powered lensless CMOS image sensor as a progress towards wireless fluorescence microscopy. Access to biological information within the tissue has the potential to provide insights guiding diagnosis and treatment across numerous medical conditions including cancer therapy. This information, in conjunction with current clinical imaging techniques that have limitations in obtaining images continuously and lack wireless compatibility, can improve continual detection of multicell clusters deep within tissue. The proposed platform incorporates a 2.4×4.7 mm2 integrated circuit (IC) fabricated in TSMC 0.18 μm, a micro laser diode (μLD), a single piezoceramic and off-chip storage capacitors. The IC consists of a 36×40 array of capacitive trans-impedance amplifier-based pixels, wireless power management and communication via ultrasound and a laser driver all controlled by a Finite State Machine. The piezoceramic harvests energy from the acoustic waves at a depth of 2 cm to power up the IC and transfer 11.5 kbits/frame via backscattering. During Charge-Up, the off-chip capacitor stores charge to later supply a high-power 78 mW μLD during Imaging. Proof of concept of the imaging front end is shown by imaging distributions of CD8 T-cells, an indicator of the immune response to cancer, ex vivo, in the lymph nodes of a functional immune system (BL6 mice) against colorectal cancer consistent with the results of a fluorescence microscope. The overall system performance is verified by detecting 140 μm features on a USAF resolution target with 32 ms exposure time and 389 ms ultrasound backscattering.
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Affiliation(s)
- Rozhan Rabbani
- Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, Berkeley, CA 94720 USA
| | - Hossein Najafiaghdam
- Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, Berkeley, CA 94720 USA
| | - Micah Roschelle
- Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, Berkeley, CA 94720 USA
| | - Efthymios Philip Papageorgiou
- Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, Berkeley, CA 94720 USA
| | - Biqi Rebekah Zhao
- Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, Berkeley, CA 94720 USA
| | - Mohammad Meraj Ghanbari
- Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, Berkeley, CA 94720 USA
| | - Rikky Muller
- Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, Berkeley, CA 94720 USA; Chan Zuckerberg Biohub, San Francisco, CA 94158 USA
| | - Vladimir Stojanovic
- Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, Berkeley, CA 94720 USA
| | - Mekhail Anwar
- Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, Berkeley, CA 94720 USA; Department of Radiation Oncology, University of California, San Francisco, CA 94158 USA
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Liu X, Irwin DA, Huang C, Gu Y, Chen L, Donohue KD, Chen L, Yu G. A Wearable Fiber-Free Optical Sensor for Continuous Monitoring of Cerebral Blood Flow in Freely Behaving Mice. IEEE Trans Biomed Eng 2023; 70:1838-1848. [PMID: 37015409 PMCID: PMC10542964 DOI: 10.1109/tbme.2022.3229513] [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] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Wearable technologies for functional brain monitoring in freely behaving subjects can advance our understanding of cognitive processing and adaptive behavior. Existing technologies are lacking in this capability or need procedures that are invasive and/or otherwise impede brain assessments during social behavioral conditions, exercise, and sleep. METHODS In response a complete system was developed to combine relative cerebral blood flow (rCBF) measurement, O2 and CO2 supplies, and behavior recording for use on conscious, freely behaving mice. An innovative diffuse speckle contrast flowmetry (DSCF) device and associated hardware were miniaturized and optimized for rCBF measurements in small subject applications. The use of this wearable, fiber-free, near-infrared DSCF head-stage/probe allowed no craniotomy, minimally invasive probe implantation, and minimal restraint of the awake animal. RESULTS AND CONCLUSIONS Significant correlations were found between measurements with the new DSCF design and an optical standard. The system successfully detected rCBF responses to CO2-induced hypercapnia in both anesthetized and freely behaving mice. SIGNIFICANCE Collecting rCBF and activity information together during natural behaviors provides realistic physiological results and opens the path to exploring their correlations with pathophysiological conditions.
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Affiliation(s)
- Xuhui Liu
- Department of Biomedical Engineering, University of Kentucky, Lexington, KY, USA
| | - Daniel A. Irwin
- Department of Biomedical Engineering, University of Kentucky, Lexington, KY, USA
| | - Chong Huang
- Department of Biomedical Engineering, University of Kentucky, Lexington, KY, USA
| | - Yutong Gu
- Department of Biomedical Engineering, University of Kentucky, Lexington, KY, USA
| | - Li Chen
- Biostatistics and Bioinformatics Shared Resource Facility, Markey Cancer Center, University of Kentucky, Lexington, KY, USA
| | - Kevin D. Donohue
- Department of Electrical and Computer Engineering, University of Kentucky, Lexington, KY, USA
| | - Lei Chen
- Department of Physiology, Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY, USA
| | - Guoqiang Yu
- Department of Biomedical Engineering, University of Kentucky, Lexington, KY, USA
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Rustami E, Sasagawa K, Sugie K, Ohta Y, Takehara H, Haruta M, Tashiro H, Ohta J. Thin and Scalable Hybrid Emission Filter via Plasma Etching for Low-Invasive Fluorescence Detection. SENSORS (BASEL, SWITZERLAND) 2023; 23:3695. [PMID: 37050755 PMCID: PMC10098729 DOI: 10.3390/s23073695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 06/19/2023]
Abstract
Hybrid emission filters, comprising an interference filter and an absorption filter, exhibit high excitation light rejection performance and can act as lensless fluorescent devices. However, it has been challenging to produce them in large batches over a large area. In this study, we propose and demonstrate a method for transferring a Si substrate, on which the hybrid filter is deposited, onto an image sensor by attaching it to the sensor and removing the substrate via plasma etching. Through this method, we can transfer uniform filters onto fine micrometer-sized needle devices and millimeter-sized multisensor chips. Optical evaluation reveals that the hybrid filter emits light in the 500 to 560 nm range, close to the emission region of green fluorescent protein (GFP). Furthermore, by observing the fluorescence emission from the microbeads, a spatial resolution of 12.11 μm is calculated. In vitro experiments confirm that the fabricated device is able to discriminate GFP emission patterns from brain slices.
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Affiliation(s)
- Erus Rustami
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0192, Japan
- Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University (Bogor), Kampus IPB Dramaga, Bogor 16680, West Java, Indonesia
| | - Kiyotaka Sasagawa
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0192, Japan
| | - Kenji Sugie
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0192, Japan
| | - Yasumi Ohta
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0192, Japan
| | - Hironari Takehara
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0192, Japan
| | - Makito Haruta
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0192, Japan
| | - Hiroyuki Tashiro
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0192, Japan
- Department of Health Sciences, Faculty of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Jun Ohta
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0192, Japan
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Synthesis and X-Ray Crystallographical Analysis of 5, 8-Dihydroxy-1, 4-Naphthoquinonne, Cobalt (II), Nickel (II) and Copper (II) Chelate Complexes. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-021-05900-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Olorocisimo JP, Briones J, Sasagawa K, Haruta M, Takehara H, Tashiro H, Ishida-Kitagawa N, Bessho Y, Ohta J. Ultrasmall compact CMOS imaging system for bioluminescence reporter-based live gene expression analysis. JOURNAL OF BIOMEDICAL OPTICS 2021; 26:JBO-210223R. [PMID: 34734515 PMCID: PMC8564164 DOI: 10.1117/1.jbo.26.11.116002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 10/18/2021] [Indexed: 06/13/2023]
Abstract
SIGNIFICANCE Gene expression analysis is an important fundamental area of biomedical research. However, live gene expression imaging has proven challenging due to constraints in conventional optical devices and fluorescent reporters. AIM Our aim is to develop smaller, more cost-effective, and versatile imaging capabilities compared with conventional devices. Bioluminescence reporter-based gene expression analysis was targeted due to its advantages over fluorescence-based imaging. APPROACH We created a small compact imaging system using micro-CMOS image sensors (μCIS). The μCIS model had an improved pixel design and a patterned absorption filter array to detect the low light intensity of bioluminescence. RESULTS The device demonstrated lower dark current, lower temporal noise, and higher sensitivity compared with previous designs. The filter array enabled us to subtract dark current drift and attain a clearer light signal. These improvements allowed us to measure bioluminescence reporter-based gene expression in living mammalian cells. CONCLUSION Using our μCIS system for bioluminescence imaging in the future, the device can be implanted in vivo for simultaneous gene expression imaging, behavioral analysis, and optogenetic modulation.
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Affiliation(s)
- Joshua Philippe Olorocisimo
- Nara Institute of Science and Technology, Photonics Device Science Laboratory, Division of Materials Science, Graduate School of Science and Technology, Takayama, Ikoma, Nara, Japan
- Nara Institute of Science and Technology, Gene Regulation Research Laboratory, Division of Biological Science, Graduate School of Science and Technology, Takayama, Ikoma, Nara, Japan
| | - Jeric Briones
- Nara Institute of Science and Technology, Mathematical Informatics Laboratory, Division of Information Science, Takayama, Ikoma, Nara, Japan
- Advanced Telecommunications Research Institute International, Cognitive Mechanisms Laboratories, Kyoto, Japan
| | - Kiyotaka Sasagawa
- Nara Institute of Science and Technology, Photonics Device Science Laboratory, Division of Materials Science, Graduate School of Science and Technology, Takayama, Ikoma, Nara, Japan
| | - Makito Haruta
- Nara Institute of Science and Technology, Photonics Device Science Laboratory, Division of Materials Science, Graduate School of Science and Technology, Takayama, Ikoma, Nara, Japan
| | - Hironari Takehara
- Nara Institute of Science and Technology, Photonics Device Science Laboratory, Division of Materials Science, Graduate School of Science and Technology, Takayama, Ikoma, Nara, Japan
| | - Hiroyuki Tashiro
- Nara Institute of Science and Technology, Photonics Device Science Laboratory, Division of Materials Science, Graduate School of Science and Technology, Takayama, Ikoma, Nara, Japan
- Kyushu University, Department of Health Sciences, Faculty of Medical Sciences, Higashi, Fukuoka, Japan
| | - Norihiro Ishida-Kitagawa
- Nara Institute of Science and Technology, Gene Regulation Research Laboratory, Division of Biological Science, Graduate School of Science and Technology, Takayama, Ikoma, Nara, Japan
| | - Yasumasa Bessho
- Nara Institute of Science and Technology, Gene Regulation Research Laboratory, Division of Biological Science, Graduate School of Science and Technology, Takayama, Ikoma, Nara, Japan
| | - Jun Ohta
- Nara Institute of Science and Technology, Photonics Device Science Laboratory, Division of Materials Science, Graduate School of Science and Technology, Takayama, Ikoma, Nara, Japan
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TG, DTA Pyrolytic Analysis of Cobalt, Nickel, Copper, Zinc, and 5,8-Dihydroxy-1,4-Naphthoquinone Chelate Complexes. J CHEM-NY 2021. [DOI: 10.1155/2021/6691137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The solid state reactions identified on the TG traces with correspondence to DTG peaks consequent to the nonisothermal decomposition of polymetallic chelates of the naphthazarin with Zn (II), Co (II), Ni (II), and Cu (II) over the temperature range ambient at 800°C have been studied kinetically following the Dave and Chopra method as these solid state reactions exhibited their resemblance with the Freeman recommended reaction for kinetic studies. The solid state reactions as described followed first order kinetics. The kinetic data showed the very low value of Z for each of the solid state reaction in reference, concluding on the solid state reactions (the nonisothermal decomposition of polymetallic chelate of Zn (II), Co (II), Ni (II), and Cu (II) as slow reactions).
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Synthetic 1,4-Naphthoquinones inhibit P2X7 receptors in murine neuroblastoma cells. Bioorg Med Chem 2021; 31:115975. [PMID: 33401207 DOI: 10.1016/j.bmc.2020.115975] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 12/21/2020] [Accepted: 12/21/2020] [Indexed: 02/07/2023]
Abstract
The P2X7 receptor (P2X7R) is an ATP-gated ion channel and potential therapeutic target for new drug development. In this study, we synthesized a series of new 1,4-naphthoquinone (1,4-NQ) derivatives and investigated their antagonistic effects against mouse P2X7R. We explored the ability of the tested substances to block ATP-induced Ca2+ influx into mouse Neuro-2a cells and selected the four most effective substances: the 1,4-naphthoquinone thioglucosides U-548 and U-557 and their tetracyclic conjugates U-286 and U-556. Biological analysis of these compounds revealed significant in vitro inhibition of murine P2X7R. This inhibition resulted in marked blockade of ethidium bromide (EtBr) and YO-PRO-1 fluorescent dye uptake, pronounced decreases in ROS and NO production and protection of neuronal cell viability against the toxic action of high ATP concentrations. In silico analysis indicated favorable molecular docking results of these 1,4-NQs, pointing to their potential to bind in an allosteric site located in the extracellular region of P2X7R. These findings suggest compounds U-286, U-548, U-556 and U-557 as potential scaffolds for the design of new P2X7R blockers and drugs effective against neuropathic pain and neurodegenerative diseases.
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Polonik S, Likhatskaya G, Sabutski Y, Pelageev D, Denisenko V, Pislyagin E, Chingizova E, Menchinskaya E, Aminin D. Synthesis, Cytotoxic Activity Evaluation and Quantitative Structure-Activity Analysis of Substituted 5,8-Dihydroxy-1,4-Naphthoquinones and their O- and S-Glycoside Derivatives Tested Against Neuro-2a Cancer Cells. Mar Drugs 2020; 18:E602. [PMID: 33260299 PMCID: PMC7761386 DOI: 10.3390/md18120602] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/20/2020] [Accepted: 11/24/2020] [Indexed: 02/07/2023] Open
Abstract
Based on 6,7-substituted 2,5,8-trihydroxy-1,4-naphtoquinones (1,4-NQs) derived from sea urchins, five new acetyl-O-glucosides of NQs were prepared. A new method of conjugation of per-O-acetylated 1-mercaptosaccharides with 2-hydroxy-1,4-NQs through a methylene spacer was developed. Methylation of 2-hydroxy group of quinone core of acetylthiomethylglycosides by diazomethane and deacetylation of sugar moiety led to 28 new thiomethylglycosidesof 2-hydroxy- and 2-methoxy-1,4-NQs. The cytotoxic activity of starting 1,4-NQs (13 compounds) and their O- and S-glycoside derivatives (37 compounds) was determined by the MTT method against Neuro-2a mouse neuroblastoma cells. Cytotoxic compounds with EC50 = 2.7-87.0 μM and nontoxic compounds with EC50 > 100 μM were found. Acetylated O- and S-glycosides 1,4-NQs were the most potent, with EC50 = 2.7-16.4 μM. Methylation of the 2-OH group innaphthoquinone core led to a sharp increase in the cytotoxic activity of acetylated thioglycosidesof NQs, which was partially retained for their deacetylated derivatives. Thiomethylglycosides of 2-hydroxy-1,4-NQs with OH and MeO groups in quinone core at positions 6 and 7, resprectively formed a nontoxic set of compounds with EC50 > 100 μM. A quantitative structure-activity relationship (QSAR) model of cytotoxic activity of 22 1,4-NQ derivatives was constructed and tested. Descriptors related to the cytotoxic activity of new 1,4-NQ derivatives were determined. The QSAR model is good at predicting the activity of 1,4-NQ derivatives which are unused for QSAR models and nontoxic derivatives.
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Affiliation(s)
- Sergey Polonik
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of Far Eastern Branch of Russian Academy of Sciences, Prospekt 100-let Vladivostoku, 159, 690022 Vladivostok, Russia; (S.P.); (G.L.); (Y.S.); (D.P.); (V.D.); (E.P.); (E.C.); (E.M.)
| | - Galina Likhatskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of Far Eastern Branch of Russian Academy of Sciences, Prospekt 100-let Vladivostoku, 159, 690022 Vladivostok, Russia; (S.P.); (G.L.); (Y.S.); (D.P.); (V.D.); (E.P.); (E.C.); (E.M.)
| | - Yuri Sabutski
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of Far Eastern Branch of Russian Academy of Sciences, Prospekt 100-let Vladivostoku, 159, 690022 Vladivostok, Russia; (S.P.); (G.L.); (Y.S.); (D.P.); (V.D.); (E.P.); (E.C.); (E.M.)
| | - Dmitry Pelageev
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of Far Eastern Branch of Russian Academy of Sciences, Prospekt 100-let Vladivostoku, 159, 690022 Vladivostok, Russia; (S.P.); (G.L.); (Y.S.); (D.P.); (V.D.); (E.P.); (E.C.); (E.M.)
- School of Natural Sciences, Far Eastern Federal University, Sukhanova St. 8, 690091 Vladivostok, Russia
| | - Vladimir Denisenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of Far Eastern Branch of Russian Academy of Sciences, Prospekt 100-let Vladivostoku, 159, 690022 Vladivostok, Russia; (S.P.); (G.L.); (Y.S.); (D.P.); (V.D.); (E.P.); (E.C.); (E.M.)
| | - Evgeny Pislyagin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of Far Eastern Branch of Russian Academy of Sciences, Prospekt 100-let Vladivostoku, 159, 690022 Vladivostok, Russia; (S.P.); (G.L.); (Y.S.); (D.P.); (V.D.); (E.P.); (E.C.); (E.M.)
| | - Ekaterina Chingizova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of Far Eastern Branch of Russian Academy of Sciences, Prospekt 100-let Vladivostoku, 159, 690022 Vladivostok, Russia; (S.P.); (G.L.); (Y.S.); (D.P.); (V.D.); (E.P.); (E.C.); (E.M.)
| | - Ekaterina Menchinskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of Far Eastern Branch of Russian Academy of Sciences, Prospekt 100-let Vladivostoku, 159, 690022 Vladivostok, Russia; (S.P.); (G.L.); (Y.S.); (D.P.); (V.D.); (E.P.); (E.C.); (E.M.)
| | - Dmitry Aminin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of Far Eastern Branch of Russian Academy of Sciences, Prospekt 100-let Vladivostoku, 159, 690022 Vladivostok, Russia; (S.P.); (G.L.); (Y.S.); (D.P.); (V.D.); (E.P.); (E.C.); (E.M.)
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, 100, Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
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Lovett ML, Nieland TJ, Dingle YTL, Kaplan DL. Innovations in 3-Dimensional Tissue Models of Human Brain Physiology and Diseases. ADVANCED FUNCTIONAL MATERIALS 2020; 30:1909146. [PMID: 34211358 PMCID: PMC8240470 DOI: 10.1002/adfm.201909146] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Indexed: 05/04/2023]
Abstract
3-dimensional (3D) laboratory tissue cultures have emerged as an alternative to traditional 2-dimensional (2D) culture systems that do not recapitulate native cell behavior. The discrepancy between in vivo and in vitro tissue-cell-molecular responses impedes understanding of human physiology in general and creates roadblocks for the discovery of therapeutic solutions. Two parallel approaches have emerged for the design of 3D culture systems. The first is biomedical engineering methodology, including bioengineered materials, bioprinting, microfluidics and bioreactors, used alone or in combination, to mimic the microenvironments of native tissues. The second approach is organoid technology, in which stem cells are exposed to chemical and/or biological cues to activate differentiation programs that are reminiscent of human (prenatal) development. This review article describes recent technological advances in engineering 3D cultures that more closely resemble the human brain. The contributions of in vitro 3D tissue culture systems to new insights in neurophysiology, neurological diseases and regenerative medicine are highlighted. Perspectives on designing improved tissue models of the human brain are offered, focusing on an integrative approach merging biomedical engineering tools with organoid biology.
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Affiliation(s)
- Michael L. Lovett
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155
| | - Thomas J.F. Nieland
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155
| | - Yu-Ting L. Dingle
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155
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Jeong YC, Lee HE, Shin A, Kim DG, Lee KJ, Kim D. Progress in Brain-Compatible Interfaces with Soft Nanomaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907522. [PMID: 32297395 DOI: 10.1002/adma.201907522] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 02/03/2020] [Accepted: 02/04/2020] [Indexed: 06/11/2023]
Abstract
Neural interfaces facilitating communication between the brain and machines must be compatible with the soft, curvilinear, and elastic tissues of the brain and yet yield enough power to read and write information across a wide range of brain areas through high-throughput recordings or optogenetics. Biocompatible-material engineering has facilitated the development of brain-compatible neural interfaces to support built-in modulation of neural circuits and neurological disorders. Recent developments in brain-compatible neural interfaces that use soft nanomaterials more suitable for complex neural circuit analysis and modulation are reviewed. Preclinical tests of the compatibility and specificity of these interfaces in animal models are also discussed.
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Affiliation(s)
- Yong-Cheol Jeong
- Department of Biological Science, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Han Eol Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Anna Shin
- Department of Biological Science, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Dae-Gun Kim
- Department of Biological Science, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Keon Jae Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Daesoo Kim
- Department of Biological Science, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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Kobayashi T, Islam T, Sato M, Ohkura M, Nakai J, Hayashi Y, Okamoto H. Wide and Deep Imaging of Neuronal Activities by a Wearable NeuroImager Reveals Premotor Activity in the Whole Motor Cortex. Sci Rep 2019; 9:8366. [PMID: 31182818 PMCID: PMC6557893 DOI: 10.1038/s41598-019-44146-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 05/09/2019] [Indexed: 12/04/2022] Open
Abstract
Wearable technologies for functional whole brain imaging in freely moving animals would advance our understanding of cognitive processing and adaptive behavior. Fluorescence imaging can visualize the activity of individual neurons in real time, but conventional microscopes have limited sample coverage in both the width and depth of view. Here we developed a novel head-mounted laser camera (HLC) with macro and deep-focus lenses that enable fluorescence imaging at cellular resolution for comprehensive imaging in mice expressing a layer- and cell type-specific calcium probe. We visualized orientation selectivity in individual excitatory neurons across the whole visual cortex of one hemisphere, and cell assembly expressing the premotor activity that precedes voluntary movement across the motor cortex of both hemispheres. Including options for multiplex and wireless interfaces, our wearable, wide- and deep-imaging HLC technology could enable simple and economical mapping of neuronal populations underlying cognition and behavior.
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Affiliation(s)
- Takuma Kobayashi
- Laboratory for Neural Circuit Dynamics of Decision Making, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan.
| | - Tanvir Islam
- Laboratory for Neural Circuit Dynamics of Decision Making, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Masaaki Sato
- Graduate School of Science and Engineering, Saitama University, Wako, Saitama, 338-8570, Japan.,Brain and Body System Science Institute, Saitama University, Wako, Saitama, 338-8570, Japan.,Laboratory for Mental Biology, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Masamichi Ohkura
- Graduate School of Science and Engineering, Saitama University, Wako, Saitama, 338-8570, Japan.,Brain and Body System Science Institute, Saitama University, Wako, Saitama, 338-8570, Japan
| | - Junichi Nakai
- Graduate School of Science and Engineering, Saitama University, Wako, Saitama, 338-8570, Japan.,Brain and Body System Science Institute, Saitama University, Wako, Saitama, 338-8570, Japan
| | - Yasunori Hayashi
- Brain and Body System Science Institute, Saitama University, Wako, Saitama, 338-8570, Japan.,RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan.,Department of Pharmacology, Kyoto University Graduate School of Medicine, Kyoto, 606-8501, Japan
| | - Hitoshi Okamoto
- Laboratory for Neural Circuit Dynamics of Decision Making, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan.
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Pimenta S, Pereira JP, Gomes NM, Ribeiro JF, Silva MF, Goncalves SB, Minas G, Correia JH. High-selectivity neural probe based on a Fabry-Perot optical filter and a CMOS silicon photodiodes array at visible wavelengths. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-7. [PMID: 30350488 DOI: 10.1117/1.jbo.23.10.105004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 09/25/2018] [Indexed: 06/08/2023]
Abstract
This paper presents a silicon neural probe with a high-selectivity optical readout function and light emitting diodes for neurons photostimulation and fluorophore excitation. A high-selectivity Fabry-Perot optical filter on the top of a CMOS silicon photodiodes array can read the emitted fluorescence, which indicates the neurons physiological state. The design, fabrication, and characterization of the optical filter are presented. The SiO2 / TiO2 based optical filter thin films were deposited by RF sputtering. The performance of the optical filter deposited on the top of the silicon photodiodes array, implemented in the neural probe, was tested through in-vitro fluorescence measurements. The transmittance peak of the fabricated optical filter is 81.8% at 561 nm, with a full width at half maximum of 28 nm. The peak responsivity of the CMOS silicon photodiode with the optical filter deposited on its top is 273.6 mA / W at 578 nm. The in-vitro fluorescence measurements results show a CMOS photodiode current proportional to the fluorophore concentration with a good linearity (R2 = 0.9361). The results validate the use of the neural probe with the high-selectivity optical readout function to determine the presence of different fluorophore concentrations. The development of the device in a conventional CMOS process allows on-chip electronics readout.
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Affiliation(s)
- Sara Pimenta
- University of Minho, CMEMS-UMinho, Campus de Azurém, Guimarães, Portugal
| | - José P Pereira
- University of Minho, CMEMS-UMinho, Campus de Azurém, Guimarães, Portugal
| | - Nuno M Gomes
- University of Minho, CMEMS-UMinho, Campus de Azurém, Guimarães, Portugal
| | - João F Ribeiro
- University of Minho, CMEMS-UMinho, Campus de Azurém, Guimarães, Portugal
| | - Manuel F Silva
- University of Minho, CMEMS-UMinho, Campus de Azurém, Guimarães, Portugal
| | - Sandra B Goncalves
- University of Minho, CMEMS-UMinho, Campus de Azurém, Guimarães, Portugal
| | - Graca Minas
- University of Minho, CMEMS-UMinho, Campus de Azurém, Guimarães, Portugal
| | - José H Correia
- University of Minho, CMEMS-UMinho, Campus de Azurém, Guimarães, Portugal
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Takayama K, Mizuguchi H. Generation of Optogenetically Modified Adenovirus Vector for Spatiotemporally Controllable Gene Therapy. ACS Chem Biol 2018; 13:449-454. [PMID: 29327920 DOI: 10.1021/acschembio.7b01058] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Gene therapy is expected to be utilized for the treatment of various diseases. However, the spatiotemporal resolution of current gene therapy technology is not high enough. In this study, we generated a new technology for spatiotemporally controllable gene therapy. We introduced optogenetic and CRISPR/Cas9 techniques into a recombinant adenovirus (Ad) vector, which is widely used in clinical trials and exhibits high gene transfer efficiency, to generate an illumination-dependent spatiotemporally controllable gene regulation system (designated the Opt/Cas-Ad system). We generated an Opt/Cas-Ad system that could regulate a potential tumor suppressor gene, and we examined the effectiveness of this system in cancer treatment using a xenograft tumor model. With the Opt/Cas-Ad system, highly selective tumor treatment could be performed by illuminating the tumor. In addition, Opt/Cas-Ad system-mediated tumor treatment could be stopped simply by turning off the light. We believe that our Opt/Cas-Ad system can enhance both the safety and effectiveness of gene therapy.
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Affiliation(s)
- Kazuo Takayama
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University , Osaka 565-0871, Japan
- PRESTO, Japan Science and Technology Agency , Saitama 332-0012, Japan
- Laboratory of Hepatocyte Regulation, National Institute of Biomedical Innovation, Health and Nutrition , Osaka 567-0085, Japan
| | - Hiroyuki Mizuguchi
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University , Osaka 565-0871, Japan
- Laboratory of Hepatocyte Regulation, National Institute of Biomedical Innovation, Health and Nutrition , Osaka 567-0085, Japan
- Global Center for Medical Engineering and Informatics, Osaka University , Osaka 565-0871, Japan
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