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Lee Y, Kim K, Kim D, Lee JS. Organelle-Specific Quantum Thermometry Using Fluorescent Nanodiamonds: Insights into Cellular Metabolic Thermodynamics. J Am Chem Soc 2025; 147:13180-13189. [PMID: 40113448 DOI: 10.1021/jacs.4c16365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2025]
Abstract
Intracellular thermometry is a powerful method for studying biological thermodynamics across various physiological contexts. In this study, we present an organelle-specific quantum thermometry utilizing nitrogen-vacancy (NV) centers in fluorescent nanodiamonds (FNDs) to obtain precise temperature measurements at the subcellular level. By conjugating antibodies, FNDs were selectively targeted to mitochondria, nuclei, and cell membranes in living fibroblasts, enabling real-time monitoring of temperature changes during adenosine triphosphate (ATP) synthesis and inhibition. The system integrates advanced bioconjugation and quantum sensing methodologies, thereby overcoming challenges, such as photobleaching and limited spatial resolution. Notably, mitochondria-targeted FNDs revealed significant temperature increases, revealing mitochondria as the primary site of thermogenesis during ATP inhibition. These findings establish a robust framework for investigating metabolic thermodynamics and offer a powerful tool for exploring the thermal regulation of cellular processes.
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Affiliation(s)
- Yoobeen Lee
- Department of Chemistry, Hanyang University, Seoul 04763, Republic of Korea
| | - Kiho Kim
- Department of Physics & Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - Dohun Kim
- Department of Physics & Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - Jin Seok Lee
- Department of Chemistry, Hanyang University, Seoul 04763, Republic of Korea
- Research Institute for Convergence of Basic Sciences, Hanyang University, Seoul 04763, Republic of Korea
- Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea
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2
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Kato YS, Shimazaki Y, Chuma S, Shiraya K, Nakane Y, Sugi T, Okabe K, Harada Y, Sotoma S. Fluorescent Thermometers Based on Carbon Quantum Dots with Various Detection Modes for Intracellular Temperature Measurement. NANO LETTERS 2025; 25:5688-5696. [PMID: 40134068 DOI: 10.1021/acs.nanolett.4c06642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2025]
Abstract
We report that carbon quantum dots (CQDs) synthesized via a hydrothermal process using anthraquinone derivatives and l-cysteine provide versatile detection modes, making them suitable for various experimental setups. By modification of the precursor structures, these CQDs can function as different types of fluorescent nanothermometers, including those based on fluorescence intensity, ratiometrics, and fluorescence lifetime. Notably, fluorescence lifetime-based CQDs demonstrate robust performance under a wide range of conditions, including variations in pH and ionic strength. The CQDs exhibit low cytotoxicity and high cellular uptake efficiency, enabling wash-free imaging and precise fluorescence lifetime-based temperature measurements at the single-cell level. Furthermore, we successfully measured temperature changes associated with biochemical reactions, including the increase in cellular temperature induced by mitochondrial depolarization. In addition, these fluorescence lifetime-based measurements could be cross-verified using their fluorescence intensity. These findings underscore the potential of CQDs as versatile and minimally invasive tools for nanoscale thermometry in live cells.
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Affiliation(s)
- Yuki S Kato
- Department of Biological Sciences, School of Science, The University of Osaka, Machikaneyamacho Toyonaka, Osaka 560-0043, Japan
| | - Yukiho Shimazaki
- Department of Biological Sciences, Graduate School of Science, The University of Osaka, Machikaneyamacho Toyonaka, Osaka 560-0043, Japan
- Institute for Protein Research, The University of Osaka, Yamadaoka Suita, Osaka 565-0871, Japan
| | - Shunsuke Chuma
- Institute for Protein Research, The University of Osaka, Yamadaoka Suita, Osaka 565-0871, Japan
| | - Kota Shiraya
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Yurina Nakane
- Program of Biomedical Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Kagamiyama, Higashihiroshima, Hiroshima 739-0046, Japan
| | - Takuma Sugi
- Program of Biomedical Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Kagamiyama, Higashihiroshima, Hiroshima 739-0046, Japan
| | - Kohki Okabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo Bunkyo City, Tokyo 113-0033, Japan
| | - Yoshie Harada
- Institute for Protein Research, The University of Osaka, Yamadaoka Suita, Osaka 565-0871, Japan
- Center for Quantum Information and Quantum Biology, The University of Osaka, Machikaneyamacho Toyonaka, Osaka 560-0043, Japan
- Premium Research Institute for Human Metaverse Medicine (WPI-PRIMe), The University of Osaka, Yamadaoka Suita, Osaka 565-0871, Japan
| | - Shingo Sotoma
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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3
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Wazawa T, Ozaki-Noma R, Kai L, Fukushima SI, Matsuda T, Nagai T. Genetically-encoded temperature indicators for thermal biology. Biophys Physicobiol 2025; 22:e220008. [PMID: 40309302 PMCID: PMC12040488 DOI: 10.2142/biophysico.bppb-v22.0008] [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] [Received: 12/14/2024] [Accepted: 04/03/2025] [Indexed: 05/02/2025] Open
Abstract
Temperature crucially affects molecular processes in living organisms and thus it is one of the vital physical parameters for life. To investigate how temperature is biologically maintained and regulated and its biological impact on organisms, it is essential to measure the spatial distribution and/or temporal changes of temperature across different biological scales, from whole organism to subcellular structures. Fluorescent nanothermometers have been developed as probes for temperature measurement by fluorescence microscopy for applications in microscopic scales where macroscopic temperature sensors are inaccessible, such as embryos, tissues, cells, and organelles. Although fluorescent nanothermometers have been developed from various materials, fluorescent protein-based ones are especially of interest because they can be introduced into cells as the transgenes for expression with or without specific localization, making them suitable for less-invasive temperature observation in living biological samples. In this article, we review protein-based fluorescent nanothermometers also known as genetically-encoded temperature indicators (GETIs), covering most published GETIs, for developers, users, and researchers in thermal biology as well as interested readers. We provide overviews of the temperature sensing mechanisms and measurement methods of these protein-based fluorescent nanothermometers. We then outline key information for GETI development, focusing on unique protein engineering techniques and building blocks distinct to GETIs, unlike other fluorescent nanothermometers. Furthermore, we propose several standards for the characterization of GETIs. Additionally, we explore various issues and offer perspectives in the field of thermal biology.
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Affiliation(s)
- Tetsuichi Wazawa
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Ryohei Ozaki-Noma
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Ibaraki, Osaka 567-0047, Japan
- Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Lu Kai
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Shun-ichi Fukushima
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Tomoki Matsuda
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Ibaraki, Osaka 567-0047, Japan
- Department of Biosciences, School of Science, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| | - Takeharu Nagai
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Ibaraki, Osaka 567-0047, Japan
- Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan
- Transdimensional Life Imaging Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka 565-0871, Japan
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4
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Sotoma S, Shiraya K, Shimomura S, Yoshida Y, Maeda K. Carbon quantum dots modified with hyperbranched polyglycerol for bioapplications: improved photostability and temperature selectivity. NANOSCALE 2025; 17:6466-6473. [PMID: 39937599 DOI: 10.1039/d5nr00331h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/14/2025]
Abstract
There is a growing demand for technologies to accurately measure intracellular temperatures. Carbon quantum dots (CQDs) are promising candidates due to their unique properties, including high biocompatibility and ease of functionalization, attracting notable attention for applications in intracellular temperature measurements. Nevertheless, CQD-based measurements are susceptible to photobleaching and environmental factors beyond temperature (pH, ion concentration, viscosity, and biomolecules), compromising their accuracy. This study demonstrates that modifying the surface of nitrogen- and sulfur-doped CQDs (N,S-CQDs) with hyperbranched polyglycerol (HPG) mitigates the effects of surface-derived fluorescence, emphasizing core-derived fluorescence, which significantly improves their photostability and robustness against environmental changes. These HPG-modified N,S-CQDs, N,S-CQD-HPG, show reliable and repeatable temperature sensing, making them highly suitable for precise temperature measurements in complex biological environments. These findings highlight the importance of strategic surface modification in developing reliable nanometric temperature sensors for diverse applications.
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Affiliation(s)
- Shingo Sotoma
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
| | - Kota Shiraya
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
| | - Suzune Shimomura
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
| | - Yumi Yoshida
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
| | - Kohji Maeda
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
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5
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He S, Barón A, Munteanu CR, de Bilbao B, Casañola-Martin GM, Chelu M, Musuc AM, Bediaga H, Ascencio E, Castellanos-Rubio I, Arrasate S, Pazos A, Insausti M, Rasulev B, González-Díaz H. Drug Release Nanoparticle System Design: Data Set Compilation and Machine Learning Modeling. ACS APPLIED MATERIALS & INTERFACES 2025; 17:5290-5306. [PMID: 39800937 DOI: 10.1021/acsami.4c16800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2025]
Abstract
Magnetic nanoparticles (NPs) are gaining significant interest in the field of biomedical functional nanomaterials because of their distinctive chemical and physical characteristics, particularly in drug delivery and magnetic hyperthermia applications. In this paper, we experimentally synthesized and characterized new Fe3O4-based NPs, functionalizing its surface with a 5-TAMRA cadaverine modified copolymer consisting of PMAO and PEG. Despite these advancements, many combinations of NP cores and coatings remain unexplored. To address this, we created a new data set of NP systems from public sources. Herein, 11 different AI/ML algorithms were used to develop the predictive AI/ML models. The linear discriminant analysis (LDA) and random forest (RF) models showed high values of sensitivity and specificity (>0.9) in training/validation series and 3-fold cross validation, respectively. The AI/ML models are able to predict 14 output properties (CC50 (μM), EC50 (μM), inhibition (%), etc.) for all combinations of 54 different NP cores classes vs. 25 different coats and vs. 41 different cell lines, allowing the short listing of the best results for experimental assays. The results of this work may help to reduce the cost of traditional trial and error procedures.
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Affiliation(s)
- Shan He
- Department of Coatings and Polymer Materials, North Dakota State University, Fargo, North Dakota 58102, United States
- Department of Organic and Inorganic Chemistry, University of Basque Country UPV/EHU, 48940 Leioa, Greater Bilbao, Basque Country, Spain
- IKERDATA S.L., UPVEHU ZITEK, Rectorate Building, 48940 Leioa, Basque Country, Spain
| | - Ander Barón
- Department of Organic and Inorganic Chemistry, University of Basque Country UPV/EHU, 48940 Leioa, Greater Bilbao, Basque Country, Spain
| | - Cristian R Munteanu
- Computer Science Faculty, University of A Coruna, CITIC, 15071 A Coruña, Spain
- Biomedical Research Institute of A Coruña (INIBIC), University Hospital Complex of A Coruña (CHUAC), 15006 A Coruña, Spain
| | - Begoña de Bilbao
- Department of Organic and Inorganic Chemistry, University of Basque Country UPV/EHU, 48940 Leioa, Greater Bilbao, Basque Country, Spain
| | - Gerardo M Casañola-Martin
- Department of Coatings and Polymer Materials, North Dakota State University, Fargo, North Dakota 58102, United States
| | - Mariana Chelu
- "IlieMurgulescu" Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Adina Magdalena Musuc
- "IlieMurgulescu" Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Harbil Bediaga
- IKERDATA S.L., UPVEHU ZITEK, Rectorate Building, 48940 Leioa, Basque Country, Spain
- Painting Department, Fine Arts Faculty, University of the Basque Country UPV/EHU, 48940, Leioa, Biscay, Basque Country, Spain
| | - Estefania Ascencio
- Department of Coatings and Polymer Materials, North Dakota State University, Fargo, North Dakota 58102, United States
- Department of Organic and Inorganic Chemistry, University of Basque Country UPV/EHU, 48940 Leioa, Greater Bilbao, Basque Country, Spain
- IKERDATA S.L., UPVEHU ZITEK, Rectorate Building, 48940 Leioa, Basque Country, Spain
| | - Idoia Castellanos-Rubio
- Department of Organic and Inorganic Chemistry, University of Basque Country UPV/EHU, 48940 Leioa, Greater Bilbao, Basque Country, Spain
| | - Sonia Arrasate
- Department of Organic and Inorganic Chemistry, University of Basque Country UPV/EHU, 48940 Leioa, Greater Bilbao, Basque Country, Spain
| | - Alejandro Pazos
- Computer Science Faculty, University of A Coruna, CITIC, 15071 A Coruña, Spain
- Biomedical Research Institute of A Coruña (INIBIC), University Hospital Complex of A Coruña (CHUAC), 15006 A Coruña, Spain
| | - Maite Insausti
- Department of Organic and Inorganic Chemistry, University of Basque Country UPV/EHU, 48940 Leioa, Greater Bilbao, Basque Country, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, 48940 Leioa, Spain
| | - Bakhtiyor Rasulev
- Department of Coatings and Polymer Materials, North Dakota State University, Fargo, North Dakota 58102, United States
| | - Humberto González-Díaz
- Department of Organic and Inorganic Chemistry, University of Basque Country UPV/EHU, 48940 Leioa, Greater Bilbao, Basque Country, Spain
- BIOFISIKA: Basque Center for Biophysics, CSIC-UPVEH, 48940 Leioa, Spain
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Biscay, Spain
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6
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Srivannavit O, Joshi R, Zhu W, Gong B, Turnbull IC, Patel V, Sealfon SC, Borca-Tasciuc T, Blitzer RD, Gaitas A. Design, fabrication, and calibration of a micromachined thermocouple for biological applications in temperature monitoring. Biosens Bioelectron 2025; 267:116835. [PMID: 39393192 DOI: 10.1016/j.bios.2024.116835] [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: 06/27/2024] [Revised: 09/18/2024] [Accepted: 10/02/2024] [Indexed: 10/13/2024]
Abstract
This paper presents a microneedle thermocouple probe designed for temperature measurements in biological samples, addressing a critical need in the field of biology. Fabricated on a Silicon-On-Insulator (SOI) wafer, the probe features a doped silicon (Si)/chrome (Cr)/gold (Au) junction, providing a high Seebeck coefficient, rapid response times, and excellent temperature resolution. The microfabrication process produces a microneedle with a triangular sensing junction. Finite Element Analysis (FEA) was employed to evaluate the thermal time constant and structural integrity in tissue, supporting the probe's suitability for biological applications. Experimental validation included temperature measurements in ex-vivo tissue and live Xenopus laevis oocytes. Notably, intracellular thermogenesis was detected by increasing extracellular potassium concentration to depolarize the oocyte membrane, resulting in a measurable temperature rise. These findings highlight the probe's potential as a robust tool for monitoring temperature variations in biological systems.
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Affiliation(s)
- Onnop Srivannavit
- The Estelle and Daniel Maggin Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Rakesh Joshi
- The Estelle and Daniel Maggin Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Weibin Zhu
- The Estelle and Daniel Maggin Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Bin Gong
- Department of Pathology, The University of Texas Medical Branch at Galveston, Galveston, TX, 77555, USA
| | - Irene C Turnbull
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Vishwendra Patel
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Stuart C Sealfon
- The Estelle and Daniel Maggin Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Theodorian Borca-Tasciuc
- Mechanical, Aerospace & Nuclear Engineering, School of Engineering, Rensselaer Polytechnic Institute, Jonsson Engineering Center, Troy, NY, 12180, USA
| | - Robert D Blitzer
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA; Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Angelo Gaitas
- The Estelle and Daniel Maggin Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA; BioMedical Engineering & Imaging Institute, Leon and Norma Hess Center for Science and Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
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7
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Hamoya T, Kaminaga K, Igarashi R, Nishimura Y, Yanagihara H, Morioka T, Suzuki C, Abe H, Ohshima T, Imaoka T. Intravital microscopic thermometry of rat mammary epithelium by fluorescent nanodiamond. NANOSCALE HORIZONS 2024; 9:1938-1947. [PMID: 39297440 DOI: 10.1039/d4nh00237g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2024]
Abstract
Quantum sensing using the fluorescent nanodiamond (FND) nitrogen-vacancy center enables physical/chemical measurements of the microenvironment, although application of such measurements in living mammals poses significant challenges due to the unknown biodistribution and toxicity of FNDs, the limited penetration of visible light for quantum state manipulation/measurement, and interference from physiological motion. Here, we describe a microenvironmental thermometry technique using FNDs in rat mammary epithelium, an important model for mammary gland biology and breast cancer research. FNDs were injected directly into the mammary gland. Microscopic observation of mammary tissue sections showed that most FNDs remained in the mammary epithelium for at least 8 weeks. Pathological examination indicated no obvious change in tissue morphology, suggesting negligible toxicity. Optical excitation and detection were performed through a skin incision. Periodic movements due to respiration and heartbeat were mitigated by frequency filtering of the signal. Based on these methods, we successfully detected temperature elevation in the mammary epithelium associated with lipopolysaccharide-induced inflammation, demonstrating the sensitivity and relevance of the technique in biological contexts. This study lays the groundwork for expanding the applicability of quantum sensing in biomedical research, providing a tool for real-time monitoring of physiological and pathological processes.
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Affiliation(s)
- Takahiro Hamoya
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan.
- Department of Molecular-Targeting Prevention, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Kiichi Kaminaga
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan.
- Department of Radiation Effects Research, Institute for Radiological Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Ryuji Igarashi
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan.
- Department of Radiation Effects Research, Institute for Radiological Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
- School of Life Science and Technology, Tokyo Institute of Technology, 2-12-1 Okayama, Meguro-ku, Tokyo 152-8550, Japan
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho Inage-ku, Chiba 263-8522, Japan
- Graduate School of Medicine, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Yukiko Nishimura
- Department of Radiation Effects Research, Institute for Radiological Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Hiromi Yanagihara
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan.
- Department of Radiation Effects Research, Institute for Radiological Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Takamitsu Morioka
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan.
- Department of Radiation Effects Research, Institute for Radiological Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Chihiro Suzuki
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan.
| | - Hiroshi Abe
- Quantum Materials and Applications Research Center, Takasaki Institute for Advanced Quantum Science, National Institutes for Quantum Science and Technology, 1233 Watanuki-machi, Takasaki 370-1207, Japan
| | - Takeshi Ohshima
- Quantum Materials and Applications Research Center, Takasaki Institute for Advanced Quantum Science, National Institutes for Quantum Science and Technology, 1233 Watanuki-machi, Takasaki 370-1207, Japan
| | - Tatsuhiko Imaoka
- Institute for Quantum Life Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan.
- Department of Radiation Effects Research, Institute for Radiological Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
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8
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Munteanu T, Brunel F, Camplo M, Siri O. Emerging Thermosensitive Probes Based on Triamino-Phenazinium Dyes. Molecules 2024; 29:4830. [PMID: 39459199 PMCID: PMC11509897 DOI: 10.3390/molecules29204830] [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: 09/02/2024] [Revised: 10/01/2024] [Accepted: 10/09/2024] [Indexed: 10/28/2024] Open
Abstract
Temperature is an essential physical characteristic that influences all biological processes. Building on previous research on dialkylamino-functionalized rhodamine-based thermo-sensors, we investigate herein the thermosensitive properties of triamino-phenazinium dyes. Through a simple five-step synthetic route, we synthesized amino-phenazinium chromophores 6 and 7, featuring diethylamine substituents at different positions. A comparative analysis of optical properties and thermosensitivity was conducted on these compounds and an isomer, 5, in which butylamine moiety replaced the diethylamine group. The different emissive behaviors of the three fluorophores emphasize that not only the chemical nature but also the specific position of the alkylamine substituent play fundamental roles in the synthesis of highly emissive thermo-probes.
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Affiliation(s)
| | | | | | - Olivier Siri
- CNRS UMR 7325 Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), Campus de Luminy, Aix Marseille University, 13288 Marseille, Cedex 09, France; (T.M.); (F.B.); (M.C.)
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9
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Zhang Y, Naguro I, Ryuno H, Herr AE. ContactBlot: Microfluidic Control and Measurement of the Cell-Cell Contact State to Assess Contact-Inhibited ERK Signaling. Anal Chem 2024. [PMID: 39254112 PMCID: PMC11447967 DOI: 10.1021/acs.analchem.4c02936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/11/2024]
Abstract
Extracellular signal-regulated kinase (ERK) signaling is essential to regulated cell behaviors, including cell proliferation, differentiation, and apoptosis. The influence of cell-cell contacts on ERK signaling is central to epithelial cells, yet few studies have sought to understand the same in cancer cells, particularly with single-cell resolution. To acquire same-cell measurements of both phenotypic (cell-contact state) and targeted-protein (ERK phosphorylation) profiles, we prepend high-content, whole-cell imaging prior to end-point cellular-resolution Western blot analyses for each of hundreds of individual HeLa cancer cells cultured on that same chip, which we call contactBlot. By indexing the phosphorylation level of ERK in each cell or cell cluster to the imaged cell-contact state, we compare the ERK signaling between isolated and in-contact cells. We observe attenuated (∼2×) ERK signaling in HeLa cells that are in-contact versus isolated. Attenuation is sustained when the HeLa cells are challenged with hyperosmotic stress. Our findings show the impact of cell-cell contacts on ERK activation with isolated and in-contact cells while introducing a multi-omics tool for control and scrutiny of cell-cell interactions.
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Affiliation(s)
- Yizhe Zhang
- Department of Bioengineering, University of California-Berkeley, Berkeley, California 94720, United States
| | - Isao Naguro
- Graduate School of Pharmaceutical Sciences The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- Faculty of Pharmacy Juntendo University, Urayasu, Chiba 279-0013, Japan
| | - Hiroki Ryuno
- Graduate School of Pharmaceutical Sciences The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Amy E Herr
- Department of Bioengineering, University of California-Berkeley, Berkeley, California 94720, United States
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10
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Fukushima SI, Wazawa T, Sugiura K, Nagai T. Extremely Sensitive Genetically Encoded Temperature Indicator Enabling Measurement at the Organelle Level. ACS Sens 2024; 9:3889-3897. [PMID: 39042704 PMCID: PMC11348412 DOI: 10.1021/acssensors.3c02658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 07/18/2024] [Accepted: 07/19/2024] [Indexed: 07/25/2024]
Abstract
Intracellular temperature is a fundamental parameter in biochemical reactions. Genetically encoded fluorescent temperature indicators (GETIs) have been developed to visualize intracellular thermogenesis; however, the temperature sensitivity or localization capability in specific organelles should have been further improved to clearly capture when and where intracellular temperature changes at the subcellular level occur. Here, we developed a new GETI, gMELT, composed of donor and acceptor subunits, in which cyan and yellow fluorescent proteins, respectively, as a Förster resonance energy transfer (FRET) pair were fused with temperature-sensitive domains. The donor and acceptor subunits associated and dissociated in response to temperature changes, altering the FRET efficiency. Consequently, gMELT functioned as a fluorescence ratiometric indicator. Untagged gMELT was expressed in the cytoplasm, whereas versions fused with specific localization signals were targeted to the endoplasmic reticulum (ER) or mitochondria. All gMELT variations enabled more sensitive temperature measurements in cellular compartments than those in previous GETIs. The gMELTs, tagged with ER or mitochondrial targeting sequences, were used to detect thermogenesis in organelles stimulated chemically, a method previously known to induce thermogenesis. The observed temperature changes were comparable to previous reports, assuming that the fluorescence readout changes were exclusively due to temperature variations. Furthermore, we demonstrated how macromolecular crowding influences gMELT fluorescence given that this factor can subtly affect the fluorescence readout. Investigating thermogenesis with gMELT, accounting for factors such as macromolecular crowding, will enhance our understanding of intracellular thermogenesis phenomena.
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Affiliation(s)
| | | | | | - Takeharu Nagai
- SANKEN, The University of Osaka, Ibaraki, Osaka 567-0047, Japan
- OTRI, The University of Osaka, Suita, Osaka 565-0871, Japan
- Research
Institute for Electronic Science, Hokkaido
University, Sapporo, Hokkaido 001-0021, Japan
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11
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Kołodziej T, Mrózek M, Sengottuvel S, Głowacki MJ, Ficek M, Gawlik W, Rajfur Z, Wojciechowski AM. Multimodal analysis of traction forces and the temperature dynamics of living cells with a diamond-embedded substrate. BIOMEDICAL OPTICS EXPRESS 2024; 15:4024-4043. [PMID: 39022544 PMCID: PMC11249686 DOI: 10.1364/boe.524293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/30/2024] [Accepted: 04/30/2024] [Indexed: 07/20/2024]
Abstract
Cells and tissues are constantly exposed to chemical and physical signals that regulate physiological and pathological processes. This study explores the integration of two biophysical methods: traction force microscopy (TFM) and optically detected magnetic resonance (ODMR) to concurrently assess cellular traction forces and the local relative temperature. We present a novel elastic substrate with embedded nitrogen-vacancy microdiamonds that facilitate ODMR-TFM measurements. Optimization efforts focused on minimizing sample illumination and experiment duration to mitigate biological perturbations. Our hybrid ODMR-TFM technique yields TFM maps and achieves approximately 1 K precision in relative temperature measurements. Our setup employs a simple wide-field fluorescence microscope with standard components, demonstrating the feasibility of the proposed technique in life science laboratories. By elucidating the physical aspects of cellular behavior beyond the existing methods, this approach opens avenues for a deeper understanding of cellular processes and may inspire the development of diverse biomedical applications.
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Affiliation(s)
- Tomasz Kołodziej
- Jagiellonian University Medical School, Faculty of Pharmacy, Kraków, Poland
- Jagiellonian University , Faculty of Physics, Astronomy, and Applied Computer Science, Kraków, Poland
| | - Mariusz Mrózek
- Jagiellonian University , Faculty of Physics, Astronomy, and Applied Computer Science, Kraków, Poland
| | - Saravanan Sengottuvel
- Jagiellonian University , Faculty of Physics, Astronomy, and Applied Computer Science, Kraków, Poland
- Jagiellonian University, Doctoral School of Exact and Natural Sciences, Kraków, Poland
| | - Maciej J Głowacki
- Gdansk University of Technology, Faculty of Electronics, Telecommunications, and Informatics, Department of Metrology and Optoelectronics, Gdańsk, Poland
| | - Mateusz Ficek
- Gdansk University of Technology, Faculty of Electronics, Telecommunications, and Informatics, Department of Metrology and Optoelectronics, Gdańsk, Poland
| | - Wojciech Gawlik
- Jagiellonian University , Faculty of Physics, Astronomy, and Applied Computer Science, Kraków, Poland
| | - Zenon Rajfur
- Jagiellonian University , Faculty of Physics, Astronomy, and Applied Computer Science, Kraków, Poland
| | - Adam M Wojciechowski
- Jagiellonian University , Faculty of Physics, Astronomy, and Applied Computer Science, Kraków, Poland
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12
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Zhang Y, Naguro I, Ryuno H, Herr A. Contact Blot: Microfluidic Control and Measurement of Cell-Cell Contact State to Assess Contact-Inhibited ERK Signaling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.11.06.565857. [PMID: 37986875 PMCID: PMC10659358 DOI: 10.1101/2023.11.06.565857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Extracellular signal-regulated kinase (ERK) signaling is essential to regulated cell behaviors, including cell proliferation, differentiation, and apoptosis. The influence of cell-cell contacts on ERK signaling is central to epithelial cells, yet few studies have sought to understand the same in cancer cells, particularly with single-cell resolution. To acquire same-cell measurements of both phenotypic (cell-contact state) and targeted-protein profile (ERK phosphorylation), we prepend high-content, whole-cell imaging prior to endpoint cellular-resolution western blot analyses for each of hundreds of individual HeLa cancer cells cultured on that same chip, which we call contact Blot. By indexing the phosphorylation level of ERK in each cell or cell-cluster to the imaged cell-contact state, we compare ERK signaling between isolated and in-contact cells. We observe attenuated (~2×) ERK signaling in HeLa cells which are in-contact versus isolated. Attenuation is sustained when the HeLa cells are challenged with hyperosmotic stress. Our findings show the impact of cell-cell contacts on ERK activation with isolated and in-contact cells, while introducing a multi omics tool for control and scrutiny of cell-cell interactions.
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13
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Lang F, Rönicke F, Wagenknecht HA. Cell-resistant wavelength-shifting molecular beacons made of L-DNA and a clickable L-configured uridine. Org Biomol Chem 2024; 22:4568-4573. [PMID: 38771639 DOI: 10.1039/d4ob00692e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
Wavelength-shifting molecular beacons were prepared from L-DNA. The clickable anchor for the two dyes, Cy3 and Cy5, was 2'-O-propargyl-L-uridine and was synthesized from L-ribose. Four clickable molecular beacons were prepared and double-modified with the azide dyes by a combination of click chemistry on a solid support for Cy3 during DNA synthesis and postsynthetic click chemistry for Cy5 in solution. Cy3 and Cy5 successfully formed a FRET pair in the beacons, and the closed form (red fluorescence) and the open form (green fluorescence) can be distinguished by the two-color fluorescence readout. Two molecular beacons were identified to show the greatest fluorescence contrast in temperature-dependent fluorescence measurements. The stability of the L-configured molecular beacons was demonstrated after several heating and cooling cycles as well as in the cell lysate. In comparison, D-configured molecular beacons showed a rapid decrease of fluorescence contrast in the cell lysate, which is caused by the opening of the beacons, probably due to degradation. This was confirmed in cell experiments using confocal microscopy. The L-configured molecular beacons are potential intracellular thermometers for future applications.
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Affiliation(s)
- Fabian Lang
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany.
| | - Franziska Rönicke
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany.
| | - Hans-Achim Wagenknecht
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany.
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14
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Sander MY, Zhu X. Infrared neuromodulation-a review. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2024; 87:066701. [PMID: 38701769 DOI: 10.1088/1361-6633/ad4729] [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: 07/14/2023] [Accepted: 05/03/2024] [Indexed: 05/05/2024]
Abstract
Infrared (IR) neuromodulation (INM) is an emerging light-based neuromodulation approach that can reversibly control neuronal and muscular activities through the transient and localized deposition of pulsed IR light without requiring any chemical or genetic pre-treatment of the target cells. Though the efficacy and short-term safety of INM have been widely demonstrated in both peripheral and central nervous systems, the investigations of the detailed cellular and biological processes and the underlying biophysical mechanisms are still ongoing. In this review, we discuss the current research progress in the INM field with a focus on the more recently discovered IR nerve inhibition. Major biophysical mechanisms associated with IR nerve stimulation are summarized. As the INM effects are primarily attributed to the spatiotemporal thermal transients induced by water and tissue absorption of pulsed IR light, temperature monitoring techniques and simulation models adopted in INM studies are discussed. Potential translational applications, current limitations, and challenges of the field are elucidated to provide guidance for future INM research and advancement.
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Affiliation(s)
- Michelle Y Sander
- Department of Electrical and Computer Engineering, Boston University, 8 Saint Mary's Street, Boston, MA 02215, United States of America
- Department of Biomedical Engineering, Boston University, 44 Cummington Mall, Boston, MA 02215, United States of America
- Division of Materials Science and Engineering, Boston University, 15 Saint Mary's Street, Brookline, MA 02446, United States of America
- Photonics Center, Boston University, 8 Saint Mary's Street, Boston, MA 02215, United States of America
- Neurophotonics Center, Boston University, 24 Cummington Mall, Boston, MA 02215, United States of America
| | - Xuedong Zhu
- Department of Biomedical Engineering, Boston University, 44 Cummington Mall, Boston, MA 02215, United States of America
- Photonics Center, Boston University, 8 Saint Mary's Street, Boston, MA 02215, United States of America
- Neurophotonics Center, Boston University, 24 Cummington Mall, Boston, MA 02215, United States of America
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15
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Chuma S, Kiyosue K, Akiyama T, Kinoshita M, Shimazaki Y, Uchiyama S, Sotoma S, Okabe K, Harada Y. Implication of thermal signaling in neuronal differentiation revealed by manipulation and measurement of intracellular temperature. Nat Commun 2024; 15:3473. [PMID: 38724563 PMCID: PMC11082174 DOI: 10.1038/s41467-024-47542-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 03/28/2024] [Indexed: 05/12/2024] Open
Abstract
Neuronal differentiation-the development of neurons from neural stem cells-involves neurite outgrowth and is a key process during the development and regeneration of neural functions. In addition to various chemical signaling mechanisms, it has been suggested that thermal stimuli induce neuronal differentiation. However, the function of physiological subcellular thermogenesis during neuronal differentiation remains unknown. Here we create methods to manipulate and observe local intracellular temperature, and investigate the effects of noninvasive temperature changes on neuronal differentiation using neuron-like PC12 cells. Using quantitative heating with an infrared laser, we find an increase in local temperature (especially in the nucleus) facilitates neurite outgrowth. Intracellular thermometry reveals that neuronal differentiation is accompanied by intracellular thermogenesis associated with transcription and translation. Suppression of intracellular temperature increase during neuronal differentiation inhibits neurite outgrowth. Furthermore, spontaneous intracellular temperature elevation is involved in neurite outgrowth of primary mouse cortical neurons. These results offer a model for understanding neuronal differentiation induced by intracellular thermal signaling.
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Affiliation(s)
- Shunsuke Chuma
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Graduate School of Science, Osaka University, 1-1 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan
| | - Kazuyuki Kiyosue
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka, 563-8577, Japan
| | - Taishu Akiyama
- Graduate School of Biostudies, Kyoto University, Yoshida-Konoecho, Sakyo-Ku, Kyoto, Kyoto, 606-8501, Japan
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida-Honmachi, Sakyo-Ku, Kyoto, Kyoto, 606-8501, Japan
| | - Masaki Kinoshita
- Graduate School of Biostudies, Kyoto University, Yoshida-Konoecho, Sakyo-Ku, Kyoto, Kyoto, 606-8501, Japan
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida-Honmachi, Sakyo-Ku, Kyoto, Kyoto, 606-8501, Japan
| | - Yukiho Shimazaki
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Graduate School of Science, Osaka University, 1-1 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan
| | - Seiichi Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan
| | - Shingo Sotoma
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kohki Okabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-0033, Japan.
- JST, PRESTO, 4-8-1 Honcho, Kawaguchi, Saitama, 332-0012, Japan.
| | - Yoshie Harada
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida-Honmachi, Sakyo-Ku, Kyoto, Kyoto, 606-8501, Japan.
- Center for Quantum Information and Quantum Biology, Osaka University, 1-2 Machikaneyamacho, Toyonaka, Osaka, 560-0043, Japan.
- Premium Research Institute for Human Metaverse Medicine (WPI-PRIMe), Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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16
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Okabe K, Sotoma S, Harada Y. Cellular Thermal Biology Using Fluorescent Nanothermometers. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1461:97-108. [PMID: 39289276 DOI: 10.1007/978-981-97-4584-5_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
It has been known that cells have mechanisms to sense and respond to environmental noxiousness and mild temperature changes, such as heat shock response and thermosensitive TRP channels. Meanwhile, new methods of measuring temperature at the cellular level has recently been developed using fluorescent nanothermometers. Among these thermometers, fluorescent polymeric thermometers and fluorescent nanodiamonds excel in the properties required for intracellular thermometry. By using these novel methods to measure the temperature of single cells in cultures and tissues, it was revealed that spontaneous spatiotemporal temperature fluctuations occur within cells. Furthermore, the temperature fluctuations were related to organelles such as mitochondria and cellular and physiological functions, revealing a close relationship between intracellular temperature and cellular functions.
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Affiliation(s)
- Kohki Okabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.
- JST, PRESTO, Saitama, Japan.
| | - Shingo Sotoma
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Kyoto, Japan.
| | - Yoshie Harada
- Institute for Protein Research, Osaka University, Osaka, Japan
- Center for Quantum Information and Quantum Biology, Osaka, Japan
- Premium Research Institute for Human Metaverse Medicine (WPI-PRIMe), Osaka University, Osaka, Japan
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17
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Tabuchi A, Tanaka Y, Horikawa H, Tazawa T, Poole DC, Kano Y. In vivo heat production dynamics during a contraction-relaxation cycle in rat single skeletal muscle fibers. J Therm Biol 2024; 119:103760. [PMID: 38048655 DOI: 10.1016/j.jtherbio.2023.103760] [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: 04/04/2023] [Revised: 10/24/2023] [Accepted: 11/24/2023] [Indexed: 12/06/2023]
Abstract
Skeletal muscle generates heat via contraction-dependent (shivering) and independent (nonshivering) mechanisms. While this thermogenic capacity of skeletal muscle undoubtedly contributes to the body temperature homeostasis of animals and impacts various cellular functions, the intracellular temperature and its dynamics in skeletal muscle in vivo remain elusive. We aimed to determine the intracellular temperature and its changes within skeletal muscle in vivo during contraction and following relaxation. In addition, we tested the hypothesis that sarcoplasmic reticulum Ca2+ ATPase (SERCA) generates heat and increases the myocyte temperature during a transitory Ca2+-induced contraction-relaxation cycle. The intact spinotrapezius muscle of anesthetized adult male Wistar rats (n = 18) was exteriorized and loaded with the fluorescent probe Cellular Thermoprobe for Fluorescence Ratio (49.3 μM) by microinjection over 1 s. The fluorescence ratio (i.e., 580 nm/515 nm) was measured in vivo during 1) temperature increases induced by means of an external heater, and 2) Ca2+ injection (3.9 nL, 2.0 mM). The fluorescence ratio increased as a linear function of muscle surface temperature from 25 °C to 40 °C (r2 = 0.97, P < 0.01). Ca2+ injection (3.9 nL, 2.0 mM) significantly increased myocyte intracellular temperature: An effect that was suppressed by SERCA inhibition with cyclopiazonic acid (CPA, Ca2+: 38.3 ± 1.4 °C vs Ca2++CPA: 28.3 ± 2.8 °C, P < 0.01 at 1 min following injection). While muscle shortening occurred immediately after the Ca2+ injection, the increased muscle temperature was maintained during the relaxation phase. In this investigation, we demonstrated a novel model for measuring the intracellular temperature of skeletal muscle in vivo and further that heat generation occurs concomitant principally with SERCA functioning and muscle relaxation.
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Affiliation(s)
- Ayaka Tabuchi
- Department of Engineering Science, Bioscience and Technology Program, University of Electro-Communications, Chofu, Tokyo, Japan
| | - Yoshinori Tanaka
- Department of Engineering Science, Bioscience and Technology Program, University of Electro-Communications, Chofu, Tokyo, Japan
| | - Hiroshi Horikawa
- Department of Engineering Science, Bioscience and Technology Program, University of Electro-Communications, Chofu, Tokyo, Japan
| | - Takuto Tazawa
- Department of Engineering Science, Bioscience and Technology Program, University of Electro-Communications, Chofu, Tokyo, Japan
| | - David C Poole
- Departments of Anatomy & Physiology and Kinesiology, Kansas State University, Manhattan, KS, USA
| | - Yutaka Kano
- Department of Engineering Science, Bioscience and Technology Program, University of Electro-Communications, Chofu, Tokyo, Japan; Center for Neuroscience and Biomedical Engineering (CNBE), University of Electro-Communications, Chofu, Tokyo, Japan.
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18
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Alessio A, Bernardi E, Moreva E, Degiovanni IP, Genovese M, Truccato M. Limitations of Bulk Diamond Sensors for Single-Cell Thermometry. SENSORS (BASEL, SWITZERLAND) 2023; 24:200. [PMID: 38203062 PMCID: PMC10781228 DOI: 10.3390/s24010200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024]
Abstract
The present paper reports on a Finite Element Method (FEM) analysis of the experimental situation corresponding to the measurement of the temperature variation in a single cell plated on bulk diamond by means of optical techniques. Starting from previous experimental results, we have determined-in a uniform power density approximation and under steady-state conditions-the total heat power that has to be dissipated by a single cell plated on a glassy substrate in order to induce the typical maximum temperature increase ΔTglass=1 K. While keeping all of the other parameters constant, the glassy substrate has been replaced by a diamond plate. The FEM analysis shows that, in this case, the maximum temperature increase is expected at the diamond/cell interface and is as small as ΔTdiam=4.6×10-4 K. We have also calculated the typical decay time in the transient scenario, which resulted in τ≈ 250 μs. By comparing these results with the state-of-the-art sensitivity values, we prove that the potential advantages of a longer coherence time, better spectral properties, and the use of special field alignments do not justify the use of diamond substrates in their bulk form.
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Affiliation(s)
- Andrea Alessio
- Physics Department, University of Turin, Via P. Giuria 1, 10125 Turin, Italy
| | - Ettore Bernardi
- Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Turin, Italy
| | - Ekaterina Moreva
- Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Turin, Italy
| | - Ivo Pietro Degiovanni
- Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Turin, Italy
| | - Marco Genovese
- Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Turin, Italy
| | - Marco Truccato
- Physics Department, University of Turin, Via P. Giuria 1, 10125 Turin, Italy
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19
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Pawar D, Lo Presti D, Silvestri S, Schena E, Massaroni C. Current and future technologies for monitoring cultured meat: A review. Food Res Int 2023; 173:113464. [PMID: 37803787 DOI: 10.1016/j.foodres.2023.113464] [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: 06/07/2023] [Revised: 08/30/2023] [Accepted: 09/10/2023] [Indexed: 10/08/2023]
Abstract
The high population growth rate, massive animal food consumption, fast economic progress, and limited food resources could lead to a food crisis in the future. There is a huge requirement for dietary proteins including cultured meat is being progressed to fulfill the need for meat-derived proteins in the diet. However, production of cultured meat requires monitoring numerous bioprocess parameters. This review presents a comprehensive overview of various widely adopted techniques (optical, spectroscopic, electrochemical, capacitive, FETs, resistive, microscopy, and ultrasound) for monitoring physical, chemical, and biological parameters that can improve the bioprocess control in cultured meat. The methods, operating principle, merits/demerits, and the main open challenges are reviewed with the aim to support the readers in advancing knowledge on novel sensing systems for cultured meat applications.
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Affiliation(s)
- Dnyandeo Pawar
- Microwave Materials Group, Centre for Materials for Electronics Technology (C-MET), Athani P.O, Thrissur, Kerala 680581, India.
| | - Daniela Lo Presti
- Unit of Measurements and Biomedical Instrumentation, Departmental Faculty of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Rome, Italy
| | - Sergio Silvestri
- Unit of Measurements and Biomedical Instrumentation, Departmental Faculty of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Rome, Italy
| | - Emiliano Schena
- Unit of Measurements and Biomedical Instrumentation, Departmental Faculty of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Rome, Italy
| | - Carlo Massaroni
- Unit of Measurements and Biomedical Instrumentation, Departmental Faculty of Engineering, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Rome, Italy
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20
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Blasi D, Gonzalez-Pato N, Rodriguez Rodriguez X, Diez-Zabala I, Srinivasan SY, Camarero N, Esquivias O, Roldán M, Guasch J, Laromaine A, Gorostiza P, Veciana J, Ratera I. Ratiometric Nanothermometer Based on a Radical Excimer for In Vivo Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207806. [PMID: 37060223 DOI: 10.1002/smll.202207806] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/24/2023] [Indexed: 06/19/2023]
Abstract
Ratiometric fluorescent nanothermometers with near-infrared emission play an important role in in vivo sensing since they can be used as intracellular thermal sensing probes with high spatial resolution and high sensitivity, to investigate cellular functions of interest in diagnosis and therapy, where current approaches are not effective. Herein, the temperature-dependent fluorescence of organic nanoparticles is designed, synthesized, and studied based on the dual emission, generated by monomer and excimer species, of the tris(2,4,6-trichlorophenyl)methyl radical (TTM) doping organic nanoparticles (TTMd-ONPs), made of optically neutral tris(2,4,6-trichlorophenyl)methane (TTM-αH), acting as a matrix. The excimer emission intensity of TTMd-ONPs decreases with increasing temperatures whereas the monomer emission is almost independent and can be used as an internal reference. TTMd-ONPs show a great temperature sensitivity (3.4% K-1 at 328 K) and a wide temperature response at ambient conditions with excellent reversibility and high colloidal stability. In addition, TTMd-ONPs are not cytotoxic and their ratiometric outputs are unaffected by changes in the environment. Individual TTMd-ONPs are able to sense temperature changes at the nano-microscale. In vivo thermometry experiments in Caenorhabditis elegans (C. elegans) worms show that TTMd-ONPs can locally monitor internal body temperature changes with spatio-temporal resolution and high sensitivity, offering multiple applications in the biological nanothermometry field.
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Affiliation(s)
- Davide Blasi
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, 08193, Spain
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", Bari, 70125, Italy
| | - Nerea Gonzalez-Pato
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, 08193, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus UAB, Bellaterra, 08193, Spain
| | - Xavier Rodriguez Rodriguez
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, 08193, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus UAB, Bellaterra, 08193, Spain
| | - Iñigo Diez-Zabala
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, 08193, Spain
| | | | - Núria Camarero
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Clúster, Baldiri Reixac 10-12, Barcelona, 08028, Spain
| | - Oriol Esquivias
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, 08193, Spain
| | - Mònica Roldán
- Unitat de Microscòpia Confocal i Imatge Cellular, Servei de Medicina Genètica i Molecular, Institut Pediàtric de Malaties Rares (IPER), Hospital Sant Joan de Déu, Esplugues de Llobregat, 08950, Spain
| | - Judith Guasch
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, 08193, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus UAB, Bellaterra, 08193, Spain
- Dynamic Biomimetics for Cancer Immunotherapy, Max Planck Partner Group, ICMAB-CSIC, Campus UAB, Bellaterra, 08193, Spain
| | - Anna Laromaine
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, 08193, Spain
| | - Pau Gorostiza
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus UAB, Bellaterra, 08193, Spain
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Clúster, Baldiri Reixac 10-12, Barcelona, 08028, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, 08010, Spain
| | - Jaume Veciana
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, 08193, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus UAB, Bellaterra, 08193, Spain
| | - Imma Ratera
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Bellaterra, 08193, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus UAB, Bellaterra, 08193, Spain
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21
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Inomata N, Miyamoto T, Okabe K, Ono T. Measurement of cellular thermal properties and their temperature dependence based on frequency spectra via an on-chip-integrated microthermistor. LAB ON A CHIP 2023; 23:2411-2420. [PMID: 36880592 DOI: 10.1039/d2lc01185a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
To understand the mechanism of intracellular thermal transport, thermal properties must be elucidated, particularly thermal conductivity and specific heat capacity. However, these properties have not been extensively studied. In this study, we developed a cellular temperature measurement device with a high temperature resolution of 1.17 m °C under wet conditions and with the ability to introduce intracellular local heating using a focused infrared laser to cultured cells on the device surface. Using this device, we evaluated the thermal properties of single cells based on their temperature signals and responses. Measurements were taken using on-chip-integrated microthermistors with high temperature resolution at varying surrounding temperatures and frequencies of local infrared irradiation on cells prepared on the sensors. Frequency spectra were used to determine the intensities of the temperature signals with respect to heating times. Signal intensities at 37 °C and a frequency lower than 2 Hz were larger than those at 25 °C, which were similar to those of water. The apparent thermal conductivity and specific heat capacity, which were determined at different surrounding temperatures and local heating frequencies, were lower than and similar to those of water at 37 °C and 25 °C, respectively. Our results indicate that the thermal properties of cells depend on both temperatures and physiological activities in addition to local heating frequencies.
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Affiliation(s)
- Naoki Inomata
- Graduate School of Engineering, Tohoku University, 6-6-01 aza-Aoba Aoba, Sendai 980-8579, Japan.
| | - Takumi Miyamoto
- Graduate School of Engineering, Tohoku University, 6-6-01 aza-Aoba Aoba, Sendai 980-8579, Japan.
| | - Kohki Okabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo Bunkyo, Tokyo 113-0033, Japan
| | - Takahito Ono
- Graduate School of Engineering, Tohoku University, 6-6-01 aza-Aoba Aoba, Sendai 980-8579, Japan.
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22
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Kurisaki I, Tanaka S, Mori I, Umegaki T, Mori Y, Tanaka S. Thermal conductivity and conductance of protein in aqueous solution: Effects of geometrical shape. J Comput Chem 2023; 44:857-868. [PMID: 36468822 PMCID: PMC10107505 DOI: 10.1002/jcc.27048] [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: 09/10/2022] [Revised: 11/10/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
Considering the importance of elucidating the heat transfer in living cells, we evaluated the thermal conductivity κ and conductance G of hydrated protein through all-atom non-equilibrium molecular dynamics simulation. Extending the computational scheme developed in earlier studies for spherical protein to cylindrical one under the periodic boundary condition, we enabled the theoretical analysis of anisotropic thermal conduction and also discussed the effects of protein size correction on the calculated results. While the present results for myoglobin and green fluorescent protein (GFP) by the spherical model were in fair agreement with previous computational and experimental results, we found that the evaluations for κ and G by the cylindrical model, in particular, those for the longitudinal direction of GFP, were enhanced substantially, but still keeping a consistency with experimental data. We also studied the influence by salt addition of physiological concentration, finding insignificant alteration of thermal conduction of protein in the present case.
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Affiliation(s)
- Ikuo Kurisaki
- Graduate School of System Informatics, Kobe University, Kobe, Japan
| | - Seiya Tanaka
- Graduate School of Science, Technology and Innovation, Kobe University, Kobe, Japan
| | - Ichiro Mori
- Graduate School of Science, Technology and Innovation, Kobe University, Kobe, Japan
| | - Toshihito Umegaki
- Graduate School of System Informatics, Kobe University, Kobe, Japan.,Center for Mathematical Modeling and Data Science, Osaka University, Osaka, Japan
| | - Yoshiharu Mori
- Graduate School of System Informatics, Kobe University, Kobe, Japan
| | - Shigenori Tanaka
- Graduate School of System Informatics, Kobe University, Kobe, Japan
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23
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How hot can mitochondria be? Incubation at temperatures above 43 °C induces the degradation of respiratory complexes and supercomplexes in intact cells and isolated mitochondria. Mitochondrion 2023; 69:83-94. [PMID: 36764502 DOI: 10.1016/j.mito.2023.02.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 01/25/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023]
Abstract
Mitochondrial function generates an important fraction of the heat that contributes to cellular and organismal temperature maintenance, but the actual values of this parameter reached in the organelles is a matter of debate. The studies addressing this issue have reported divergent results: from detecting in the organelles the same temperature as the cell average or the incubation temperature, to increasing differences of up to 10 degrees above the incubation value. Theoretical calculations based on physical laws exclude the possibility of relevant temperature gradients between mitochondria and their surroundings. These facts have given rise to a conundrum or paradox about hot mitochondria. We have examined by Blue-Native electrophoresis, both in intact cells and in isolated organelles, the stability of respiratory complexes and supercomplexes at different temperatures to obtain information about their tolerance to heat stress. We observe that, upon incubation at values above 43 °C and after relatively short periods, respiratory complexes, and especially complex I and its supercomplexes, are unstable even when the respiratory activity is inhibited. These results support the conclusion that high temperatures (>43 °C) cause damage to mitochondrial structure and function and question the proposal that these organelles can physiologically work at close to 50 °C.
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24
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Inada N. A Guide to Plant Intracellular Temperature Imaging using Fluorescent Thermometers. PLANT & CELL PHYSIOLOGY 2023; 64:7-18. [PMID: 36039974 DOI: 10.1093/pcp/pcac123] [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: 02/20/2022] [Revised: 07/06/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
All aspects of plant physiology are influenced by temperature. Changes in environmental temperature alter the temperatures of plant tissues and cells, which then affect various cellular activities, such as gene expression, protein stability and enzyme activities. In turn, changes in cellular activities, which are associated with either exothermic or endothermic reactions, can change the local temperature in cells and tissues. In the past 10 years, a number of fluorescent probes that detect temperature and enable intracellular temperature imaging have been reported. Intracellular temperature imaging has revealed that there is a temperature difference >1°C inside cells and that the treatment of cells with mitochondrial uncoupler or ionomycin can cause more than a 1°C intracellular temperature increase in mammalian cultured cells. Thermogenesis mechanisms in brown adipocytes have been revealed with the aid of intracellular temperature imaging. While there have been no reports on plant intracellular temperature imaging thus far, intracellular temperature imaging is expected to provide a new way to analyze the mechanisms underlying the various activities of plant cells. In this review, I will first summarize the recent progress in the development of fluorescent thermometers and their biological applications. I will then discuss the selection of fluorescent thermometers and experimental setup for the adaptation of intracellular temperature imaging to plant cells. Finally, possible applications of intracellular temperature imaging to investigate plant cell functions will be discussed.
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Affiliation(s)
- Noriko Inada
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai-shi, Osaka, 599-8531 Japan
- School of Agriculture, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-ku, Sakai-shi, Osaka, 599-8531 Japan
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25
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Kuznetsov KM, Baigildin VA, Solomatina AI, Galenko EE, Khlebnikov AF, Sokolov VV, Tunik SP, Shakirova JR. Polymeric Nanoparticles with Embedded Eu(III) Complexes as Molecular Probes for Temperature Sensing. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248813. [PMID: 36557943 PMCID: PMC9785794 DOI: 10.3390/molecules27248813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/30/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022]
Abstract
Three novel luminescent Eu(III) complexes, Eu1-Eu3, have been synthesized and characterized with CHN analysis, mass-spectrometry and 1H NMR spectroscopy. The complexes display strong emission in dichloromethane solution upon excitation at 405 and 800 nm with a quantum yield from 18.3 to 31.6%, excited-state lifetimes in the range of 243-1016 ms at 20 °C, and lifetime temperature sensitivity of 0.9%/K (Eu1), 1.9%/K (Eu2), and 1.7%/K (Eu3). The chromophores were embedded into biocompatible latex nanoparticles (NPs_Eu1-NPs_Eu3) that prevented emission quenching and kept the photophysical characteristics of emitters unchanged with the highest temperature sensitivity of 1.3%/K (NPs_Eu2). For this probe cytotoxicity, internalization dynamics and localization in CHO-K1 cells were studied together with lifetime vs. temperature calibration in aqueous solution, phosphate buffer, and in a mixture of growth media and fetal bovine serum. The obtained data were then averaged to give the calibration curve, which was further used for temperature estimation in biological samples. The probe was stable in physiological media and displayed good reproducibility in cycling experiments between 20 and 40 °C. PLIM experiments with thermostated CHO-K1 cells incubated with NPs_Eu2 indicated that the probe could be used for temperature estimation in cells including the assessment of temperature variations upon chemical shock (sample treatment with mitochondrial uncoupling reagent).
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Affiliation(s)
- Kirill M. Kuznetsov
- Department of General and Inorganic Chemistry, Institute of Chemistry, St. Petersburg State University, St. Petersburg 198504, Russia
| | - Vadim A. Baigildin
- Department of General and Inorganic Chemistry, Institute of Chemistry, St. Petersburg State University, St. Petersburg 198504, Russia
| | - Anastasia I. Solomatina
- Department of General and Inorganic Chemistry, Institute of Chemistry, St. Petersburg State University, St. Petersburg 198504, Russia
| | - Ekaterina E. Galenko
- Department of Organic Chemistry, Institute of Chemistry, St. Petersburg State University, St. Petersburg 198504, Russia
| | - Alexander F. Khlebnikov
- Department of Organic Chemistry, Institute of Chemistry, St. Petersburg State University, St. Petersburg 198504, Russia
| | - Victor V. Sokolov
- Department of Organic Chemistry, Institute of Chemistry, St. Petersburg State University, St. Petersburg 198504, Russia
| | - Sergey P. Tunik
- Department of General and Inorganic Chemistry, Institute of Chemistry, St. Petersburg State University, St. Petersburg 198504, Russia
- Correspondence: (S.P.T.); (J.R.S.)
| | - Julia R. Shakirova
- Department of General and Inorganic Chemistry, Institute of Chemistry, St. Petersburg State University, St. Petersburg 198504, Russia
- Correspondence: (S.P.T.); (J.R.S.)
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26
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Lanoiselée Y, Stanislavsky A, Calebiro D, Weron A. Temperature and friction fluctuations inside a harmonic potential. Phys Rev E 2022; 106:064127. [PMID: 36671112 DOI: 10.1103/physreve.106.064127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/20/2022] [Indexed: 06/17/2023]
Abstract
In this article we study the trapped motion of a molecule undergoing diffusivity fluctuations inside a harmonic potential. For the same diffusing-diffusivity process, we investigate two possible interpretations. Depending on whether diffusivity fluctuations are interpreted as temperature or friction fluctuations, we show that they display drastically different statistical properties inside the harmonic potential. We compute the characteristic function of the process under both types of interpretations and analyze their limit behavior. Based on the integral representations of the processes we compute the mean-squared displacement and the normalized excess kurtosis. In the long-time limit, we show for friction fluctuations that the probability density function (PDF) always converges to a Gaussian whereas in the case of temperature fluctuations the stationary PDF can display either Gaussian distribution or generalized Laplace (Bessel) distribution depending on the ratio between diffusivity and positional correlation times.
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Affiliation(s)
- Yann Lanoiselée
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham B15 2TT, United Kingdom
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Nottingham and Birmingham, Birmingham B15 2TT, United Kingdom
| | | | - Davide Calebiro
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham B15 2TT, United Kingdom
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Nottingham and Birmingham, Birmingham B15 2TT, United Kingdom
| | - Aleksander Weron
- Faculty of Pure and Applied Mathematics, Hugo Steinhaus Center, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
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27
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Castellanos-Rubio I, Barón A, Luis-Lizarraga O, Rodrigo I, de Muro IG, Orue I, Martínez-Martínez V, Castellanos-Rubio A, López-Arbeloa F, Insausti M. Efficient Magneto-Luminescent Nanosystems based on Rhodamine-Loaded Magnetite Nanoparticles with Optimized Heating Power and Ideal Thermosensitive Fluorescence. ACS APPLIED MATERIALS & INTERFACES 2022; 14:50033-50044. [PMID: 36302136 PMCID: PMC9650688 DOI: 10.1021/acsami.2c14016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Nanosystems that simultaneously contain fluorescent and magnetic modules can offer decisive advantages in the development of new biomedical approaches. A biomaterial that enables multimodal imaging and contains highly efficient nanoheaters together with an intrinsic temperature sensor would become an archetypical theranostic agent. In this work, we have designed a magneto-luminescent system based on Fe3O4 NPs with large heating power and thermosensitive rhodamine (Rh) fluorophores that exhibits the ability to self-monitor the hyperthermia degree. Three samples composed of highly homogeneous Fe3O4 NPs of ∼25 nm and different morphologies (cuboctahedrons, octahedrons, and irregular truncated-octahedrons) have been finely synthesized. These NPs have been thoroughly studied in order to choose the most efficient inorganic core for magnetic hyperthermia under clinically safe radiofrequency. Surface functionalization of selected Fe3O4 NPs has been carried out using fluorescent copolymers composed of PMAO, PEG and Rh. Copolymers with distinct PEG tail lengths (5-20 kDa) and different Rh percentages (5, 10, and 25%) have been synthesized, finding out that the copolymer with 20 kDa PEG and 10% Rh provides the best coating for an efficient fluorescence with minimal aggregation effects. The optimized Fe3O4@Rh system offers very suitable fluorescence thermosensitivity in the therapeutic hyperthermia range. Additionally, this sample presents good biocompatibility and displays an excellent heating capacity within the clinical safety limits of the AC field (≈ 1000 W/g at 142 kHz and 44 mT), which has been confirmed by both calorimetry and AC magnetometry. Thus, the current work opens up promising avenues toward next-generation medical technologies.
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Affiliation(s)
- Idoia Castellanos-Rubio
- Departamento
Química Orgánica e Inorgánica, Facultad de Ciencia
y Tecnología, UPV/EHU, Barrio Sarriena s/n, 48940, Leioa, Spain
| | - Ander Barón
- Departamento
Química Orgánica e Inorgánica, Facultad de Ciencia
y Tecnología, UPV/EHU, Barrio Sarriena s/n, 48940, Leioa, Spain
| | - Oier Luis-Lizarraga
- Departamento
Química Orgánica e Inorgánica, Facultad de Ciencia
y Tecnología, UPV/EHU, Barrio Sarriena s/n, 48940, Leioa, Spain
| | - Irati Rodrigo
- Departamento
Electricidad y Electrónica, Facultad de Ciencia y Tecnología, UPV/EHU, Barrio Sarriena s/n, Leioa48940, Spain
| | - Izaskun Gil de Muro
- Departamento
Química Orgánica e Inorgánica, Facultad de Ciencia
y Tecnología, UPV/EHU, Barrio Sarriena s/n, 48940, Leioa, Spain
- BC Materials,
Basque Center for Materials, Applications
and Nanostructures, Barrio
Sarriena s/n, Leioa48940, Spain
| | - Iñaki Orue
- SGIker,
Servicios Generales de Investigación, UPV/EHU, Barrio Sarriena
s/n, Leioa48940, Spain
| | - Virginia Martínez-Martínez
- Departamento
Química Física, Facultad de Ciencia y Tecnología, UPV/EHU, Barrio Sarriena s/n, Leioa48940, Spain
| | - Ainara Castellanos-Rubio
- Departamento
Genética, Antropología Física y Fisiología
Animal, Facultad de Medicina, UPV/EHU, Leioa48940, Spain
- Biocruces
Bizkaia Health Research Institute, Cruces Plaza, Barakaldo48903, Spain
- Biomedical
Research Center in Diabetes Network and Associated Metabolic Diseases, Madrid28029, Spain
- IKERBASQUE
Basque Foundation for Science, Bilbao48013, Spain
| | - Fernando López-Arbeloa
- Departamento
Química Física, Facultad de Ciencia y Tecnología, UPV/EHU, Barrio Sarriena s/n, Leioa48940, Spain
| | - Maite Insausti
- Departamento
Química Orgánica e Inorgánica, Facultad de Ciencia
y Tecnología, UPV/EHU, Barrio Sarriena s/n, 48940, Leioa, Spain
- BC Materials,
Basque Center for Materials, Applications
and Nanostructures, Barrio
Sarriena s/n, Leioa48940, Spain
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28
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Tan Y, Hu X, Hou Y, Chu Z. Emerging Diamond Quantum Sensing in Bio-Membranes. MEMBRANES 2022; 12:957. [PMID: 36295716 PMCID: PMC9609316 DOI: 10.3390/membranes12100957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Bio-membranes exhibit complex but unique mechanical properties as communicative regulators in various physiological and pathological processes. Exposed to a dynamic micro-environment, bio-membranes can be seen as an intricate and delicate system. The systematical modeling and detection of their local physical properties are often difficult to achieve, both quantitatively and precisely. The recent emerging diamonds hosting quantum defects (i.e., nitrogen-vacancy (NV) center) demonstrate intriguing optical and spin properties, together with their outstanding photostability and biocompatibility, rendering them ideal candidates for biological applications. Notably, the extraordinary spin-based sensing enable the measurements of localized nanoscale physical quantities such as magnetic fields, electrical fields, temperature, and strain. These nanoscale signals can be optically read out precisely by simple optical microscopy systems. Given these exclusive properties, NV-center-based quantum sensors can be widely applied in exploring bio-membrane-related features and the communicative chemical reaction processes. This review mainly focuses on NV-based quantum sensing in bio-membrane fields. The attempts of applying NV-based quantum sensors in bio-membranes to investigate diverse physical and chemical events such as membrane elasticity, phase change, nanoscale bio-physical signals, and free radical formation are fully overviewed. We also discuss the challenges and future directions of this novel technology to be utilized in bio-membranes.
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Affiliation(s)
- Yayin Tan
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong 999077, China
| | - Xinhao Hu
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong 999077, China
| | - Yong Hou
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong 999077, China
| | - Zhiqin Chu
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong 999077, China
- Joint Appointment with School of Biomedical Sciences, The University of Hong Kong, Hong Kong 999077, China
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29
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Kaur T, Sharma D. Expansion of thermometry in magnetic hyperthermia cancer therapy: antecedence and aftermath. Nanomedicine (Lond) 2022; 17:1607-1623. [PMID: 36318111 DOI: 10.2217/nnm-2022-0095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Magnetic hyperthermia cancer therapy (MHCT) is a promising antitumor therapy based on the generation of heat by magnetic nanoparticles under the influence of an alternating-current magnetic field. However, an often-overlooked factor hindering the translation of MHCT to clinics is the inability to accurately monitor temperature, thereby leading to erroneous thermal control. It is significant to address 'thermometry' during magnetic hyperthermia because numerous factors are affected by the magnetic fields employed, rendering traditional thermometry methods unsuitable for temperature estimation. Currently, there is a dearth of literature describing appropriate techniques for thermometry during MHCT. This review offers a general outline of the various modes of conventional thermometry as well as cutting-edge techniques operating at cellular/nanoscale levels (nanothermometry) as prospective thermometers for MHCT in the future.
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Affiliation(s)
- Tashmeen Kaur
- Institute of Nano Science & Technology, Knowledge City, Sector 81, Mohali, Punjab, 140306, India
| | - Deepika Sharma
- Institute of Nano Science & Technology, Knowledge City, Sector 81, Mohali, Punjab, 140306, India
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30
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Li Y, Ma Y, Dang QY, Fan XR, Han CT, Xu SZ, Li PY. Assessment of mitochondrial dysfunction and implications in cardiovascular disorders. Life Sci 2022; 306:120834. [PMID: 35902031 DOI: 10.1016/j.lfs.2022.120834] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/11/2022] [Accepted: 07/20/2022] [Indexed: 11/18/2022]
Abstract
Mitochondria play a pivotal role in cellular function, not only acting as the powerhouse of the cell, but also regulating ATP synthesis, reactive oxygen species (ROS) production, intracellular Ca2+ cycling, and apoptosis. During the past decade, extensive progress has been made in the technology to assess mitochondrial functions and accumulating evidences have shown that mitochondrial dysfunction is a key pathophysiological mechanism for many diseases including cardiovascular disorders, such as ischemic heart disease, cardiomyopathy, hypertension, atherosclerosis, and hemorrhagic shock. The advances in methodology have been accelerating our understanding of mitochondrial molecular structure and function, biogenesis and ROS and energy production, which facilitates new drug target identification and therapeutic strategy development for mitochondrial dysfunction-related disorders. This review will focus on the assessment of methodologies currently used for mitochondrial research and discuss their advantages, limitations and the implications of mitochondrial dysfunction in cardiovascular disorders.
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Affiliation(s)
- Yuan Li
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Ying Ma
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Qing-Ya Dang
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Xin-Rong Fan
- Department of Cardiology, The First Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Chu-Ting Han
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Shang-Zhong Xu
- Academic Diabetes, Endocrinology and Metabolism, Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull, United Kingdom.
| | - Peng-Yun Li
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan 646000, China.
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31
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Rodríguez-Sevilla P, Marin R, Ximendes E, del Rosal B, Benayas A, Jaque D. Luminescence Thermometry for Brain Activity Monitoring: A Perspective. Front Chem 2022; 10:941861. [PMID: 35903194 PMCID: PMC9315374 DOI: 10.3389/fchem.2022.941861] [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: 05/11/2022] [Accepted: 06/22/2022] [Indexed: 11/13/2022] Open
Abstract
Minimally invasive monitoring of brain activity is essential not only to gain understanding on the working principles of the brain, but also for the development of new diagnostic tools. In this perspective we describe how brain thermometry could be an alternative to conventional methods (e.g., magnetic resonance or nuclear medicine) for the acquisition of thermal images of the brain with enough spatial and temperature resolution to track brain activity in minimally perturbed animals. We focus on the latest advances in transcranial luminescence thermometry introducing a critical discussion on its advantages and shortcomings. We also anticipate the main challenges that the application of luminescent nanoparticles for brain thermometry will face in next years. With this work we aim to promote the development of near infrared luminescence for brain activity monitoring, which could also benefit other research areas dealing with the brain and its illnesses.
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Affiliation(s)
- Paloma Rodríguez-Sevilla
- Departamento de Física de Materiales, Nanomaterials for Bioimaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
- Nanomaterials for Bioimaging Group (NanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, Madrid, Spain
| | - Riccardo Marin
- Departamento de Física de Materiales, Nanomaterials for Bioimaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
| | - Erving Ximendes
- Departamento de Física de Materiales, Nanomaterials for Bioimaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
- Nanomaterials for Bioimaging Group (NanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, Madrid, Spain
| | | | - Antonio Benayas
- Departamento de Física de Materiales, Nanomaterials for Bioimaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
- Nanomaterials for Bioimaging Group (NanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, Madrid, Spain
| | - Daniel Jaque
- Departamento de Física de Materiales, Nanomaterials for Bioimaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
- Nanomaterials for Bioimaging Group (NanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, Madrid, Spain
- *Correspondence: Daniel Jaque,
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32
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Dutta T, Pal K, Koner AL. Intracellular Physical Properties with Small Organic Fluorescent Probes: Recent Advances and Future Perspectives. CHEM REC 2022; 22:e202200035. [PMID: 35801859 DOI: 10.1002/tcr.202200035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 06/22/2022] [Indexed: 11/09/2022]
Abstract
The intracellular physical parameters i. e., polarity, viscosity, fluidity, tension, potential, and temperature of a live cell are the hallmark of cellular health and have garnered immense interest over the past decade. In this context, small molecule organic fluorophores exhibit prominent useful properties including easy functionalizability, environmental sensitivity, biocompatibility, and fast yet efficient cellular uptakability which has made them a popular tool to understand intra-cellular micro-environmental properties. Throughout this discussion, we have outlined the basic design strategies of small molecules for specific organelle targeting and quantification of physical properties. The values of these parameters are indicative of cellular homeostasis and subtle alteration may be considered as the onset of disease. We believe this comprehensive review will facilitate the development of potential future probes for superior insight into the physical parameters that are yet to be quantified.
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Affiliation(s)
- Tanoy Dutta
- Bionanotechnology Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, INDIA (TD) (ALK
| | - Kaushik Pal
- Bionanotechnology Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, INDIA (TD) (ALK.,Department of Physics and Astronomy, Iowa State University, Ames, Iowa, 50011, USA
| | - Apurba Lal Koner
- Bionanotechnology Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, INDIA (TD) (ALK
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33
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Light-to-Heat Converting ECM-Mimetic Nanofiber Scaffolds for Neuronal Differentiation and Neurite Outgrowth Guidance. NANOMATERIALS 2022; 12:nano12132166. [PMID: 35808000 PMCID: PMC9268234 DOI: 10.3390/nano12132166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/18/2022] [Accepted: 06/22/2022] [Indexed: 11/18/2022]
Abstract
The topological cues of fibrous scaffolds (in particular extracellular matrix (ECM)-mimetic nanofibers) have already proven to be a powerful tool for influencing neuronal morphology and behavior. Remote photothermal optical treatment provides additional opportunities for neuronal activity regulation. A combination of these approaches can provide “smart” 3D scaffolds for efficient axon guidance and neurite growth. In this study we propose two alternative approaches for obtaining biocompatible photothermal scaffolds: surface coating of nylon nanofibers with light-to-heat converting nanoparticles and nanoparticle incorporation inside the fibers. We have determined photoconversion efficiency of fibrous nanomaterials under near infrared (NIR) irradiation, as well as biocompatible photothermal treatment parameters. We also measured photo-induced intracellular heating upon contact of cells with a plasmonic surface. In the absence of NIR stimulation, our fibrous scaffolds with a fiber diameter of 100 nm induced an increase in the proportion of β3-tubulin positive cells, while thermal stimulation of neuroblastoma cells on nanoparticles-decorated scaffolds enhanced neurite outgrowth and promoted neuronal maturation. We demonstrate that contact guidance decorated fibers can stimulate directional growth of processes of differentiated neural cells. We studied the impact of nanoparticles on the surface of ECM-mimetic scaffolds on neurite elongation and axonal branching of rat hippocampal neurons, both as topographic cues and as local heat sources. We show that decorating the surface of nanofibers with nanoparticles does not affect the orientation of neurites, but leads to strong branching, an increase in the number of neurites per cell, and neurite elongation, which is independent of NIR stimulation. The effect of photothermal stimulation is most pronounced when cultivating neurons on nanofibers with incorporated nanoparticles, as compared to nanoparticle-coated fibers. The resulting light-to-heat converting 3D materials can be used as tools for controlled photothermal neuromodulation and as “smart” materials for reconstructive neurosurgery.
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Abstract
Temperature impacts biological systems across all length and timescales. Cells and the enzymes that comprise them respond to temperature fluctuations on short timescales, and temperature can affect protein folding, the molecular composition of cells, and volume expansion. Entire ecosystems exhibit temperature-dependent behaviors, and global warming threatens to disrupt thermal homeostasis in microbes that are important for human and planetary health. Intriguingly, the growth rate of most species follows the Arrhenius law of equilibrium thermodynamics, with an activation energy similar to that of individual enzymes but with maximal growth rates and over temperature ranges that are species specific. In this review, we discuss how the temperature dependence of critical cellular processes, such as the central dogma and membrane fluidity, contributes to the temperature dependence of growth. We conclude with a discussion of adaptation to temperature shifts and the effects of temperature on evolution and on the properties of microbial ecosystems.
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Affiliation(s)
- Benjamin D Knapp
- Biophysics Program, Stanford University School of Medicine, Stanford, California, USA;
| | - Kerwyn Casey Huang
- Biophysics Program, Stanford University School of Medicine, Stanford, California, USA; .,Department of Bioengineering, Stanford University, Stanford, California, USA.,Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA.,Chan Zuckerberg Biohub, San Francisco, California, USA
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35
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Jin YJ, Kim H, Jang WD, Park SJ, Kwak G. Spontaneously sp 2-Carbonized Fluorescent Polyamides as a Probe Material for Bioimaging. ACS APPLIED BIO MATERIALS 2022; 5:3057-3066. [PMID: 35533679 DOI: 10.1021/acsabm.2c00337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Spontaneously sp2-carbonized polyamides (PA1, PA2) were prepared via Knoevenagel-type side reactions of malonyl moieties under mild conditions in the polycondensation of dicarbonyl chloride and diamine. Both polymers were soluble in water and emissive in the visible region, and the fluorescence (FL) intensity and the maximum wavelength were highly dependent on the excitation wavelength and the pH. Their chemical structures and FL origin were clarified by performing various spectroscopic analyses. π*-π transition was assumed to be allowed in an enol form based on the conjugated structure formed by the side reaction; this was responsible for its pH dependency and high FL quantum efficiency. In particular, PA2, which comprises the tertiary amide linkage, showed quick endocytosis, low cytotoxicity, excellent biocompatibility, and exclusively stained lysosomes with the lowest intracellular pH. These results will help in understanding the origin of the FL emission of carbonized nanomaterials and exploring more advanced functions in the field of bioimaging.
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Affiliation(s)
- Young-Jae Jin
- Department of Polymer Science & Engineering, Polymeric Nanomaterials Laboratory, School of Applied Chemical Engineering, Kyungpook National University, 1370 Sankyuk-dong, Buk-ku, Daegu 702-701, Korea.,Reliability Assessment Center for Chemical Materials, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon 305-600, Korea
| | - Hyojin Kim
- Daegu Technopark Nano Convergence Practical Application Center, 891-5 Daecheon-dong, Dalseo-ku, Daegu 704-801, Korea
| | - Woo-Dong Jang
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemoon-Gu, Seoul 03722, Republic of Korea
| | - Sang-Joon Park
- College of Veterinary Medicine, Kyungpook National University, 1370 Sankyuk-dong, Buk-gu, Daegu, 702-701 Korea
| | - Giseop Kwak
- Department of Polymer Science & Engineering, Polymeric Nanomaterials Laboratory, School of Applied Chemical Engineering, Kyungpook National University, 1370 Sankyuk-dong, Buk-ku, Daegu 702-701, Korea
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36
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Yang Z, Huang T, Cao P, Cui Y, Nie J, Chen T, Yang H, Wang F, Sun L. Carbonized Silk Nanofibers in Biodegradable, Flexible Temperature Sensors for Extracellular Environments. ACS APPLIED MATERIALS & INTERFACES 2022; 14:18110-18119. [PMID: 35435678 DOI: 10.1021/acsami.2c00384] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Temperature is one of the key parameters for activity of cells. The trade-off between sensitivity and biocompatibility of cell temperature measurement is a challenge for temperature sensor development. Herein, a highly sensitive, biocompatible, and degradable temperature sensor was proposed to detect the living cell extracellular environments. Biocompatible silk materials were applied as sensing and packing layers, which endow the device with biocompatibility, biodegradability, and flexibility. The silk-based temperature sensor presented a sensitivity of 1.75%/°C and a working range of 35-63 °C with the capability to measure the extracellular environments. At the bending state, this sensor worked at promising response of cells at different temperatures. The applications of this developed silk material-based temperature sensor include biological electronic devices for cell manipulation, cell culture, and cellular metabolism.
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Affiliation(s)
- Zhan Yang
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Ting Huang
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Peidong Cao
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Yangchen Cui
- School of Public Health, Medical College of Soochow University, Soochow University, Suzhou 215131, China
| | - Jihua Nie
- School of Public Health, Medical College of Soochow University, Soochow University, Suzhou 215131, China
| | - Tao Chen
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Hao Yang
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Fengxia Wang
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
| | - Lining Sun
- Jiangsu Provincial Key Laboratory of Advanced Robotics, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215131, China
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37
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Wu N, Sun Y, Kong M, Lin X, Cao C, Li Z, Feng W, Li F. Er-Based Luminescent Nanothermometer to Explore the Real-Time Temperature of Cells under External Stimuli. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107963. [PMID: 35182011 DOI: 10.1002/smll.202107963] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Temperature as a typical parameter, which influences the status of living creatures, is essential to life activities and indicates the initial cellular activities. In recent years, the rapid development of nanotechnology provides a new tool for studying temperature variation at the micro- or nano-scales. In this study, an important phenomenon is observed at the cell level using luminescent probes to explore intracellular temperature changes, based on Yb-Er doping nanoparticles with special upconversion readout mode and intensity ratio signals (I525 and I545 ). Further optimization of this four-layer core-shell ratio nanothermometer endows it with remarkable characteristics: super photostability, sensitivity, and protection owing to the shell. Thus this kind of thermal probe has the property of anti-interference to the complex chemical environment, responding exclusively to temperature, when it is used in liquid and cells to reflect external temperature changes at the nanoscale. The intracellular temperature of living RAW and CAOV3 cells are observed to have a resistance mechanism to external stimuli and approach a more favorable temperature, especially for CAOV3 cells with good heat resistance, with the intracellular temperature 4.8 °C higher than incubated medium under 5 °C environment, and 4.4 °C lower than the medium under 60 °C environment.
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Affiliation(s)
- Na Wu
- Department of Chemistry & Institute of Biomedicine Science & State Key Laboratory of Molecular Engineering of Polymers & Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Yishuo Sun
- Department of Chemistry & Institute of Biomedicine Science & State Key Laboratory of Molecular Engineering of Polymers & Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Mengya Kong
- Department of Chemistry & Institute of Biomedicine Science & State Key Laboratory of Molecular Engineering of Polymers & Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Xue Lin
- Department of Chemistry & Institute of Biomedicine Science & State Key Laboratory of Molecular Engineering of Polymers & Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Cong Cao
- College of Materials Science and Engineering & Institute of Smart Biomedical Materials, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Zhanxian Li
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Wei Feng
- Department of Chemistry & Institute of Biomedicine Science & State Key Laboratory of Molecular Engineering of Polymers & Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Fuyou Li
- Department of Chemistry & Institute of Biomedicine Science & State Key Laboratory of Molecular Engineering of Polymers & Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
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38
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Murakami A, Nagao K, Sakaguchi R, Kida K, Hara Y, Mori Y, Okabe K, Harada Y, Umeda M. Cell-autonomous control of intracellular temperature by unsaturation of phospholipid acyl chains. Cell Rep 2022; 38:110487. [PMID: 35294880 DOI: 10.1016/j.celrep.2022.110487] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 12/03/2021] [Accepted: 02/14/2022] [Indexed: 11/25/2022] Open
Abstract
Intracellular temperature affects a wide range of cellular functions in living organisms. However, it remains unclear whether temperature in individual animal cells is controlled autonomously as a response to fluctuations in environmental temperature. Using two distinct intracellular thermometers, we find that the intracellular temperature of steady-state Drosophila S2 cells is maintained in a manner dependent on Δ9-fatty acid desaturase DESAT1, which introduces a double bond at the Δ9 position of the acyl moiety of acyl-CoA. The DESAT1-mediated increase of intracellular temperature is caused by the enhancement of F1Fo-ATPase-dependent mitochondrial respiration, which is coupled with thermogenesis. We also reveal that F1Fo-ATPase-dependent mitochondrial respiration is potentiated by cold exposure through the remodeling of mitochondrial cristae structures via DESAT1-dependent unsaturation of mitochondrial phospholipid acyl chains. Based on these findings, we propose a cell-autonomous mechanism for intracellular temperature control during environmental temperature changes.
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Affiliation(s)
- Akira Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan; Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Kohjiro Nagao
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
| | - Reiko Sakaguchi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Keisuke Kida
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yuji Hara
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yasuo Mori
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Kohki Okabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Yoshie Harada
- Institute for Protein Research, Osaka University, Osaka 565-0871, Japan
| | - Masato Umeda
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
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39
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Zheng Y, Meana Y, Mazza MMA, Baker JD, Minnett PJ, Raymo FM. Fluorescence Switching for Temperature Sensing in Water. J Am Chem Soc 2022; 144:4759-4763. [PMID: 35262338 DOI: 10.1021/jacs.2c00820] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A water-soluble thermochromic molecular switch with spectrally resolved fluorescence in its two interconvertible states can be assembled in three synthetic steps by integrating a fluorescent coumarin chromophore, a hydrophilic oligo(ethylene glycol) chain, and a switchable oxazole heterocycle in the same covalent skeleton. Measurements of its two emissions in separate detection channels of a fluorescence microscope permit the noninvasive and ratiometric sensing of temperature at the micrometer level with millisecond response in aqueous solutions and within hydrogel matrices. The ratiometric optical output of this fluorescent molecular switch overcomes the limitations of single-wavelength fluorescent probes and enables noninvasive temperature mapping at length scales that are not accessible to conventional thermometers based on physical contact.
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Affiliation(s)
- Yeting Zheng
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146-0431, United States
| | - Yasniel Meana
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146-0431, United States
| | - Mercedes M A Mazza
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146-0431, United States
| | - James D Baker
- Department of Biology, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146-0431, United States
| | - Peter J Minnett
- Department of Ocean Sciences, Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149-1031, United States
| | - Françisco M Raymo
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146-0431, United States
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40
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41
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Watson ER, Taherian Fard A, Mar JC. Computational Methods for Single-Cell Imaging and Omics Data Integration. Front Mol Biosci 2022; 8:768106. [PMID: 35111809 PMCID: PMC8801747 DOI: 10.3389/fmolb.2021.768106] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022] Open
Abstract
Integrating single cell omics and single cell imaging allows for a more effective characterisation of the underlying mechanisms that drive a phenotype at the tissue level, creating a comprehensive profile at the cellular level. Although the use of imaging data is well established in biomedical research, its primary application has been to observe phenotypes at the tissue or organ level, often using medical imaging techniques such as MRI, CT, and PET. These imaging technologies complement omics-based data in biomedical research because they are helpful for identifying associations between genotype and phenotype, along with functional changes occurring at the tissue level. Single cell imaging can act as an intermediary between these levels. Meanwhile new technologies continue to arrive that can be used to interrogate the genome of single cells and its related omics datasets. As these two areas, single cell imaging and single cell omics, each advance independently with the development of novel techniques, the opportunity to integrate these data types becomes more and more attractive. This review outlines some of the technologies and methods currently available for generating, processing, and analysing single-cell omics- and imaging data, and how they could be integrated to further our understanding of complex biological phenomena like ageing. We include an emphasis on machine learning algorithms because of their ability to identify complex patterns in large multidimensional data.
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Affiliation(s)
| | - Atefeh Taherian Fard
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, Australia
| | - Jessica Cara Mar
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, Australia
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42
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Sakamoto Y, Ishimoto A, Sakai Y, Sato M, Nishihama R, Abe K, Sano Y, Furuichi T, Tsuji H, Kohchi T, Matsunaga S. Improved clearing method contributes to deep imaging of plant organs. Commun Biol 2022; 5:12. [PMID: 35013509 PMCID: PMC8748589 DOI: 10.1038/s42003-021-02955-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 12/08/2021] [Indexed: 01/01/2023] Open
Abstract
Tissue clearing methods are increasingly essential for the microscopic observation of internal tissues of thick biological organs. We previously developed TOMEI, a clearing method for plant tissues; however, it could not entirely remove chlorophylls nor reduce the fluorescent signal of fluorescent proteins. Here, we developed an improved TOMEI method (iTOMEI) to overcome these limitations. First, a caprylyl sulfobetaine was determined to efficiently remove chlorophylls from Arabidopsis thaliana seedlings without GFP quenching. Next, a weak alkaline solution restored GFP fluorescence, which was mainly lost during fixation, and an iohexol solution with a high refractive index increased sample transparency. These procedures were integrated to form iTOMEI. iTOMEI enables the detection of much brighter fluorescence than previous methods in tissues of A. thaliana, Oryza sativa, and Marchantia polymorpha. Moreover, a mouse brain was also efficiently cleared by the iTOMEI-Brain method within 48 h, and strong fluorescent signals were detected in the cleared brain. Sakamoto et al. demonstrate an improved optical clearing method, iTOMEI, for plant imaging. The new method can achieve fast clearing and effective removal of autofluorescence signals, and at the same time preserve signals from desired fluorescence proteins.
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Affiliation(s)
- Yuki Sakamoto
- Imaging Frontier Center, Organization for Research Advancement, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan.,Department of Biological Sciences, Graduate School of Science, Osaka University, Machikaneyama-cho 1-1, Toyonaka, Osaka, 560-0043, Japan
| | - Anna Ishimoto
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Yuuki Sakai
- Department of Biology, Graduate School of Science, Kobe University, Kobe, 657-8501, Japan
| | - Moeko Sato
- Kihara Institute for Biological Research, Yokohama City University, Maioka 641-12, Totsuka, Yokohama, 244-0813, Japan
| | - Ryuichi Nishihama
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan.,Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502, Japan
| | - Konami Abe
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Yoshitake Sano
- Imaging Frontier Center, Organization for Research Advancement, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan.,Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Teiichi Furuichi
- Imaging Frontier Center, Organization for Research Advancement, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan.,Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Hiroyuki Tsuji
- Kihara Institute for Biological Research, Yokohama City University, Maioka 641-12, Totsuka, Yokohama, 244-0813, Japan
| | - Takayuki Kohchi
- Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502, Japan
| | - Sachihiro Matsunaga
- Imaging Frontier Center, Organization for Research Advancement, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan. .,Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan. .,Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8562, Japan.
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43
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Maciel GS. Pushing the limits of luminescence thermometry: probing the temperature of proteins in cells. J Biol Phys 2022; 48:167-175. [PMID: 34997472 DOI: 10.1007/s10867-021-09600-w] [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: 08/28/2021] [Accepted: 12/13/2021] [Indexed: 10/19/2022] Open
Abstract
Proteins are involved in numerous cellular activities such as transport and catalysis. Misfolding during biosynthesis and malfunctioning as a molecular machine may lead to physiological disorders and metabolic problems. Protein folding and mechanical work may be viewed as thermodynamic energetically favorable processes in which stochastic nonequilibrium intermediate states may be present with conditions such as thermal fluctuations. In my opinion, measuring those thermal fluctuations may be a way to access the energy exchange between the protein and the physiological environment and to better understand how those nonequilibrium states may influence the misfolding/folding process and the efficiency of the molecular engine cycle. Here, I discuss luminescence thermometry as a possible way to measure those temperature fluctuations from a single-molecule experimental perspective with its current technical limitations and challenges.
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Affiliation(s)
- Glauco S Maciel
- Instituto de Física, Universidade Federal Fluminense, Niterói, RJ, 24210-346, Brazil.
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44
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Zhang H, Wu Y, Tang P, Zhu H, Gan Z, Zhang HQ, Wu D. Accurate and Real-Time Detection Method for the Exothermic Behavior of Enzymatic Nano-Microregions Using Temperature-Sensitive Amino-AgInS 2 Quantum Dots. SMALL METHODS 2022; 6:e2100811. [PMID: 35041293 DOI: 10.1002/smtd.202100811] [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: 07/14/2021] [Revised: 10/17/2021] [Indexed: 06/14/2023]
Abstract
The thermal behavior of enzymes in nanoscale is of great significance to life phenomena. This nonequilibrium state real-time thermal behavior of enzymes at nanoscale cannot be accurately detected by existing methods. Herein, a novel method is developed for the detection of this thermal behavior. The enzyme-quantum dot (QD) conjugates can be obtained by chemically grafting temperature-sensitive amino-AgInS2 QDs to the enzyme, where the QDs act as nanothermometers with a sensitivity of -2.82% °C-1 . Detecting the photoluminescence intensity changes of the enzyme-QD conjugates, the real-time thermal behavior of enzymes can be obtained. The enzyme-QD conjugates show a temperature difference as high as 6 °C above ambient temperature in nano-microregions with good reproducibility (maximum error of 4%) during catalysis, while solution temperature hardly changed. This method has a temperature resolution of ≈0.5 °C with a detection limit of 0.02 mg mL-1 of enzyme, and spatially ensured that the amino-AgInS2 QDs are quantitatively bound to the enzyme; thus, it can accurately detect the exothermic behavior of the enzyme and can be extended to other organisms' detection. This method has high sensitivity, good stability, and reliability, indicating its great potential application in investigating the thermal behavior of organisms in nanoscale and related life phenomena.
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Affiliation(s)
- Hui Zhang
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Youshen Wu
- School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Peng Tang
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Hongrui Zhu
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Zhenhai Gan
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Hu-Qin Zhang
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Daocheng Wu
- Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
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45
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Sotoma S, Okita H, Chuma S, Harada Y. Quantum nanodiamonds for sensing of biological quantities: Angle, temperature, and thermal conductivity. Biophys Physicobiol 2022; 19:e190034. [PMID: 36349322 PMCID: PMC9592573 DOI: 10.2142/biophysico.bppb-v19.0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 09/06/2022] [Indexed: 12/01/2022] Open
Abstract
Measuring physical quantities in the nanometric region inside single cells is of great importance for understanding cellular activity. Thus, the development of biocompatible, sensitive, and reliable nanobiosensors is essential for progress in biological research. Diamond nanoparticles containing nitrogen-vacancy centers (NVCs), referred to as fluorescent nanodiamonds (FNDs), have recently emerged as the sensors that show great promise for ultrasensitive nanosensing of physical quantities. FNDs emit stable fluorescence without photobleaching. Additionally, their distinctive magneto-optical properties enable an optical readout of the quantum states of the electron spin in NVC under ambient conditions. These properties enable the quantitative sensing of physical parameters (temperature, magnetic field, electric field, pH, etc.) in the vicinity of an FND; hence, FNDs are often described as “quantum sensors”. In this review, recent advancements in biosensing applications of FNDs are summarized. First, the principles of orientation and temperature sensing using FND quantum sensors are explained. Next, we introduce surface coating techniques indispensable for controlling the physicochemical properties of FNDs. The achievements of practical biological sensing using surface-coated FNDs, including orientation, temperature, and thermal conductivity, are then highlighted. Finally, the advantages, challenges, and perspectives of the quantum sensing of FND are discussed. This review article is an extended version of the Japanese article, In Situ Measurement of Intracellular Thermal Conductivity Using Diamond Nanoparticle, published in SEIBUTSU BUTSURI Vol. 62, p. 122–124 (2022).
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Affiliation(s)
| | | | - Shunsuke Chuma
- Department of Biological Sciences, Graduate School of Science, Osaka University
| | - Yoshie Harada
- Center for Quantum Information and Quantum Biology, Osaka University
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Feng G, Zhang H, Zhu X, Zhang J, Fang J. Fluorescence Thermometer: Intermediation of the Fontal Temperature and Light. Biomater Sci 2022; 10:1855-1882. [DOI: 10.1039/d1bm01912k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rapid advance of thermal materials and fluorescence spectroscopy has extensively promoted micro-scale fluorescence thermometry development in recent years. Based on the advantages of fast response, high sensitivity, simple operation,...
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Okabe K, Uchiyama S. Intracellular thermometry uncovers spontaneous thermogenesis and associated thermal signaling. Commun Biol 2021; 4:1377. [PMID: 34887517 PMCID: PMC8660847 DOI: 10.1038/s42003-021-02908-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/17/2021] [Indexed: 02/06/2023] Open
Abstract
Conventional thermal biology has elucidated the physiological function of temperature homeostasis through spontaneous thermogenesis and responses to variations in environmental temperature in organisms. In addition to research on individual physiological phenomena, the molecular mechanisms of fever and physiological events such as temperature-dependent sex determination have been intensively addressed. Thermosensitive biomacromolecules such as heat shock proteins (HSPs) and transient receptor potential (TRP) channels were systematically identified, and their sophisticated functions were clarified. Complementarily, recent progress in intracellular thermometry has opened new research fields in thermal biology. High-resolution intracellular temperature mapping has uncovered thermogenic organelles, and the thermogenic functions of brown adipocytes were ascertained by the combination of intracellular thermometry and classic molecular biology. In addition, intracellular thermometry has introduced a new concept, "thermal signaling", in which temperature variation within biological cells acts as a signal in a cascade of intriguing biological events.
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Affiliation(s)
- Kohki Okabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.
- JST, PRESTO, Saitama, Japan.
| | - Seiichi Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.
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Wang Y, Liang S, Mei M, Zhao Q, She G, Shi W, Mu L. Sensitive and Stable Thermometer Based on the Long Fluorescence Lifetime of Au Nanoclusters for Mitochondria. Anal Chem 2021; 93:15072-15079. [PMID: 34617743 DOI: 10.1021/acs.analchem.1c03092] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Detecting the temperature of intracellular mitochondria with high sensitivity and stability is crucial to understanding the cellular metabolism and revealing the processes of mitochondria-related physiology. In this paper, employing the long fluorescence lifetime of modified Au nanoclusters (mAuNCs) by 4-(carboxybutyl) triphenylphosphonium bromide, we developed a fluorescence lifetime thermometer with high sensitivity and stability for the temperature of the intracellular mitochondria. A high relative temperature sensitivity of 2.8% and excellent photostability were achieved from the present thermometer. After incubation with L929 cells, the mAuNCs could be endocytosed into the cells and targeted the mitochondria, and the temperature changes at the L929 cells' mitochondria, which were stimulated by carbonyl cyanide 3-chlorophenylhydrazone and Ca2+, were successfully detected via the fluorescence lifetime images of the mAuNCs. Furthermore, utilizing the mAuNCs, we clarified the effect of Mg2+ on the temperature of the intracellular mitochondria. The strategy of employing a material with a long fluorescence lifetime and remarkable stability to fabricate the fluorescence lifetime thermometer for mitochondria can be used to design various thermometers for other organelles.
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Affiliation(s)
- Yuan Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sen Liang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mingliang Mei
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiaowen Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guangwei She
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wensheng Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lixuan Mu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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Opto-thermal technologies for microscopic analysis of cellular temperature-sensing systems. Biophys Rev 2021; 14:41-54. [PMID: 35340595 PMCID: PMC8921355 DOI: 10.1007/s12551-021-00854-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/12/2021] [Indexed: 12/15/2022] Open
Abstract
AbstractCould enzymatic activities and their cooperative functions act as cellular temperature-sensing systems? This review introduces recent opto-thermal technologies for microscopic analyses of various types of cellular temperature-sensing system. Optical microheating technologies have been developed for local and rapid temperature manipulations at the cellular level. Advanced luminescent thermometers visualize the dynamics of cellular local temperature in space and time during microheating. An optical heater and thermometer can be combined into one smart nanomaterial that demonstrates hybrid function. These technologies have revealed a variety of cellular responses to spatial and temporal changes in temperature. Spatial temperature gradients cause asymmetric deformations during mitosis and neurite outgrowth. Rapid changes in temperature causes imbalance of intracellular Ca2+ homeostasis and membrane potential. Among those responses, heat-induced muscle contractions are highlighted. It is also demonstrated that the short-term heating hyperactivates molecular motors to exceed their maximal activities at optimal temperatures. We discuss future prospects for opto-thermal manipulation of cellular functions and contributions to obtain a deeper understanding of the mechanisms of cellular temperature-sensing systems.
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Avci C, De Marco ML, Byun C, Perrin J, Scheel M, Boissière C, Faustini M. Metal-Organic Framework Photonic Balls: Single Object Analysis for Local Thermal Probing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2104450. [PMID: 34486183 DOI: 10.1002/adma.202104450] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/23/2021] [Indexed: 05/24/2023]
Abstract
Due to their high porosity and chemical versatility, metal-organic frameworks (MOFs) exhibit physical properties appealing for photonic-based applications. While several MOF photonic structures have been reported, examples of applications thereof are mainly limited to chemical sensing. Herein, the range of application of photonic MOFs is extended to local thermal and photothermal sensing by integrating them into a new architecture: MOF photonic balls. Micrometric-sized photonic balls are made of monodispersed MOFs colloids that are self-assembled via spray-drying, a low-cost, green, and high-throughput method. The versatility of the process allows tuning the morphology and the composition of photonic balls made of several MOFs and composites with tailored optical properties. X-ray nanotomography and environmental hyperspectral microscopy enable analysis of single objects and their evolution in controlled atmosphere and temperature. Notably, in presence of vapors, the MOF photonic balls act as local, label-free temperature probes. Importantly, compared to other thermal probes, the temperature detection range of these materials can be adjusted "on-demand." As proof of concept, the photonic balls are used to determine local temperature profiles around a concentrated laser beam. More broadly, this work is expected to stimulate new research on the physical properties of photonic MOFs providing new possibilities for device fabrication.
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Affiliation(s)
- Civan Avci
- Laboratoire Chimie de la Matière Condensée de Paris (LCMCP), Sorbonne Université-CNRS, Paris, F-75005, France
| | - Maria Letizia De Marco
- Laboratoire Chimie de la Matière Condensée de Paris (LCMCP), Sorbonne Université-CNRS, Paris, F-75005, France
| | - Caroline Byun
- Laboratoire Chimie de la Matière Condensée de Paris (LCMCP), Sorbonne Université-CNRS, Paris, F-75005, France
| | | | - Mario Scheel
- Synchrotron Soleil, Gif-sur-Yvette, 91192, France
| | - Cédric Boissière
- Laboratoire Chimie de la Matière Condensée de Paris (LCMCP), Sorbonne Université-CNRS, Paris, F-75005, France
| | - Marco Faustini
- Laboratoire Chimie de la Matière Condensée de Paris (LCMCP), Sorbonne Université-CNRS, Paris, F-75005, France
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