1
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Shikha D, Chang YT, Goswami C. TRPM8 affects relative "cooling and heating" of subcellular organelles in microglia in a context-dependent manner. Int J Biochem Cell Biol 2024; 173:106615. [PMID: 38908471 DOI: 10.1016/j.biocel.2024.106615] [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: 02/23/2024] [Revised: 05/23/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
Thermoregulation and thermal homeostasis at the cellular and subcellular organelle level are poorly understood events. In this work, we used BV2, a microglial cell line, and a series of thermo-sensitive subcellular organelle-specific probes to analyze the relative changes in the spatio-temporal temperatures of different subcellular organelles, both qualitatively and quantitatively. These methodologies allowed us to understand the thermal relationship of different subcellular organelles also. We modulated BV2 cells by pharmacological application of activator or inhibitor of TRPM8 ion channel (a cold-sensitive ion channel) and/or by treating the cells with LPS, a molecule that induces pathogen-associated molecular patterns (PAMPs) signaling. We demonstrate that the temperatures of individual organelles remain variable within a physiological range, yet vary in different conditions. We also demonstrate that treating BV2 cells by TRPM8 modulators and/or LPS alters the organelle temperatures in a specific and context-dependent manner. We show that TRPM8 modulation and/or LPS can alter the relationship of mitochondrial membrane potential to mitochondrial temperature. Our work suggests that mitochondrial temperature positively influences ER temperature and negatively influences Golgi temperature. Golgi temperature positively influences membrane temperature. This understanding of thermal relationships may be crucial for dissecting cellular structures, function, and stress signaling and may be relevant for different diseases.
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Affiliation(s)
- Deep Shikha
- School of Biological Sciences, National Institute of Science Education and Research, An OCC of Homi Bhabha National Institute, Khordha, Jatni, Odisha 752050, India
| | - Young-Tae Chang
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Chandan Goswami
- School of Biological Sciences, National Institute of Science Education and Research, An OCC of Homi Bhabha National Institute, Khordha, Jatni, Odisha 752050, India.
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2
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Li S, Li Y, Zhang S, Fang H, Huang Z, Zhang D, Ding A, Uvdal K, Hu Z, Huang K, Li L. Response strategies and biological applications of organic fluorescent thermometry: cell- and mitochondrion-level detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1968-1984. [PMID: 38511286 DOI: 10.1039/d4ay00117f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Temperature homeostasis is critical for cells to perform their physiological functions. Among the diverse methods for temperature detection, fluorescent temperature probes stand out as a proven and effective tool, especially for monitoring temperature in cells and suborganelles, with a specific emphasis on mitochondria. The utilization of these probes provides a new opportunity to enhance our understanding of the mechanisms and interconnections underlying various physiological activities related to temperature homeostasis. However, the complexity and variability of cells and suborganelles necessitate fluorescent temperature probes with high resolution and sensitivity. To meet the demanding requirements for intracellular/subcellular temperature detection, several strategies have been developed, offering a range of options to address this challenge. This review examines four fundamental temperature-response strategies employed by small molecule and polymer probes, including intramolecular rotation, polarity sensitivity, Förster resonance energy transfer, and structural changes. The primary emphasis was placed on elucidating molecular design and biological applications specific to each type of probe. Furthermore, this review provides an insightful discussion on factors that may affect fluorescent thermometry, providing valuable perspectives for future development in the field. Finally, the review concludes by presenting cutting-edge response strategies and research insights for mitigating biases in temperature sensing.
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Affiliation(s)
- Shuai Li
- The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China.
| | - Yaoxuan Li
- Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Shiji Zhang
- The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China.
| | - Haixiao Fang
- The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China.
- Future Display Institute in Xiamen, Xiamen 361005, China.
| | - Ze Huang
- The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China.
| | - Duoteng Zhang
- The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China.
| | - Aixiang Ding
- The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China.
| | - Kajsa Uvdal
- Department of Physics, Chemistry and Biology, Linköping University, Linköping, 58183, Sweden.
| | - Zhangjun Hu
- Department of Physics, Chemistry and Biology, Linköping University, Linköping, 58183, Sweden.
| | - Kai Huang
- Future Display Institute in Xiamen, Xiamen 361005, China.
| | - Lin Li
- The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China.
- Future Display Institute in Xiamen, Xiamen 361005, China.
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3
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Romshin AM, Osypov AA, Popova IY, Zeeb VE, Sinogeykin AG, Vlasov II. Heat Release by Isolated Mouse Brain Mitochondria Detected with Diamond Thermometer. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:98. [PMID: 36616008 PMCID: PMC9823591 DOI: 10.3390/nano13010098] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/15/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The production of heat by mitochondria is critical for maintaining body temperature, regulating metabolic rate, and preventing oxidative damage to mitochondria and cells. Until the present, mitochondrial heat production has been characterized only by methods based on fluorescent probes, which are sensitive to environmental variations (viscosity, pH, ionic strength, quenching, etc.). Here, for the first time, the heat release of isolated mitochondria was unambiguously measured by a diamond thermometer (DT), which is absolutely indifferent to external non-thermal parameters. We show that during total uncoupling of transmembrane potential by CCCP application, the temperature near the mitochondria rises by 4-22 °C above the ambient temperature with an absolute maximum of 45 °C. Such a broad variation in the temperature response is associated with the heterogeneity of the mitochondria themselves as well as their aggregations in the isolated suspension. Spontaneous temperature bursts with comparable amplitude were also detected prior to CCCP application, which may reflect involvement of some mitochondria to ATP synthesis or membrane potential leaking to avoid hyperproduction of reactive oxygen species. The results obtained with the diamond temperature sensor shed light on the "hot mitochondria" paradox.
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Affiliation(s)
- Alexey M. Romshin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alexander A. Osypov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142292 Moscow, Russia
- Institute of Higher Nervous Activity and Neurophysiology of the Russian Academy of Sciences, 117485 Moscow, Russia
| | - Irina Yu. Popova
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142292 Moscow, Russia
| | - Vadim E. Zeeb
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, 142292 Moscow, Russia
| | | | - Igor I. Vlasov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
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4
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El-Gammal Z, Nasr MA, Elmehrath AO, Salah RA, Saad SM, El-Badri N. Regulation of mitochondrial temperature in health and disease. Pflugers Arch 2022; 474:1043-1051. [PMID: 35780250 PMCID: PMC9492600 DOI: 10.1007/s00424-022-02719-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/15/2022] [Indexed: 11/30/2022]
Abstract
Mitochondrial temperature is produced by various metabolic processes inside the mitochondria, particularly oxidative phosphorylation. It was recently reported that mitochondria could normally operate at high temperatures that can reach 50℃. The aim of this review is to identify mitochondrial temperature differences between normal cells and cancer cells. Herein, we discussed the different types of mitochondrial thermosensors and their advantages and disadvantages. We reviewed the studies assessing the mitochondrial temperature in cancer cells and normal cells. We shed the light on the factors involved in maintaining the mitochondrial temperature of normal cells compared to cancer cells.
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Affiliation(s)
- Zaynab El-Gammal
- Center of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, Cairo, Egypt.,Egypt Center for Research and Regenerative Medicine, Cairo, Egypt
| | - Mohamed A Nasr
- Center of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, Cairo, Egypt
| | - Ahmed O Elmehrath
- Center of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, Cairo, Egypt.,Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Radwa A Salah
- Center of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, Cairo, Egypt
| | - Shams M Saad
- Center of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, Cairo, Egypt
| | - Nagwa El-Badri
- Center of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, Cairo, Egypt.
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Zeng W, Lin M, Zhu L, Lin M. A Triphenylphosphonium Functionalized
AIE
Conjugated Macrocyclic Tetramaleimide for Mitochondrial‐targeting Bioimaging. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wei Zeng
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry Fuzhou University Fuzhou Fujian 350116 China
| | - Mao‐Hua Lin
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry Fuzhou University Fuzhou Fujian 350116 China
| | - Ling‐Yun Zhu
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry Fuzhou University Fuzhou Fujian 350116 China
| | - Mei‐Jin Lin
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry Fuzhou University Fuzhou Fujian 350116 China
- College of Materials Science and Engineering Fuzhou University Fuzhou Fujian 350116 China
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Feng S, Qu Z, Zhou Z, Chen J, Gai L, Lu H. Si-Bridged annulated BODIPYs: synthesis, unique structure and photophysical properties. Chem Commun (Camb) 2021; 57:11689-11692. [PMID: 34673851 DOI: 10.1039/d1cc04687j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Two novel Si-bridged meso-annulated BODIPY dyes have been prepared through intermolecular C-I silylation and subsequent intramolecular C-H silylation in a one-pot reaction. A marked redshift of the main spectral bands was observed since the efficient σ*-π* conjugation results in a notable stabilization of the LUMOs. Si-annulation blocks the non-radiative decay and contributes to higher fluorescence quantum yields. This strategy is very attractive for the construction of highly emissive polycyclic aromatic hydrocarbons.
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Affiliation(s)
- Siyang Feng
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, P. R. China.
| | - Zhirong Qu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, P. R. China.
| | - Zhikuan Zhou
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, P. R. China.
| | - Jiaying Chen
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, P. R. China.
| | - Lizhi Gai
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, P. R. China.
| | - Hua Lu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, P. R. China.
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Zhao YX, Zhao XG, Yang Y, Ruan M, He SG. Rhodium chemistry: A gas phase cluster study. J Chem Phys 2021; 154:180901. [PMID: 34241019 DOI: 10.1063/5.0046529] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Due to the extraordinary catalytic activity in redox reactions, the noble metal, rhodium, has substantial industrial and laboratory applications in the production of value-added chemicals, synthesis of biomedicine, removal of automotive exhaust gas, and so on. The main drawback of rhodium catalysts is its high-cost, so it is of great importance to maximize the atomic efficiency of the precious metal by recognizing the structure-activity relationship of catalytically active sites and clarifying the root cause of the exceptional performance. This Perspective concerns the significant progress on the fundamental understanding of rhodium chemistry at a strictly molecular level by the joint experimental and computational study of the reactivity of isolated Rh-based gas phase clusters that can serve as ideal models for the active sites of condensed-phase catalysts. The substrates cover the important organic and inorganic molecules including CH4, CO, NO, N2, and H2. The electronic origin for the reactivity evolution of bare Rhx q clusters as a function of size is revealed. The doping effect and support effect as well as the synergistic effect among heteroatoms on the reactivity and product selectivity of Rh-containing species are discussed. The ingenious employment of diverse experimental techniques to assist the Rh1- and Rh2-doped clusters in catalyzing the challenging endothermic reactions is also emphasized. It turns out that the chemical behavior of Rh identified from the gas phase cluster study parallels the performance of condensed-phase rhodium catalysts. The mechanistic aspects derived from Rh-based cluster systems may provide new clues for the design of better performing rhodium catalysts including the single Rh atom catalysts.
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Affiliation(s)
- Yan-Xia Zhao
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Xi-Guan Zhao
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Yuan Yang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Man Ruan
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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