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Ma Y, Ma Y, Liu K, Wang D, Liu R, Chen Q, Jiang D, Pan R. An ultra-sensitive platinized nanocavity electrode for analysis of cytosolic catecholamines in one living cell. Talanta 2024; 269:125503. [PMID: 38070283 DOI: 10.1016/j.talanta.2023.125503] [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: 07/22/2023] [Revised: 11/26/2023] [Accepted: 11/28/2023] [Indexed: 01/05/2024]
Abstract
The catecholamines, mainly dopamine (DA), are present in the cellular cytosol with low abundance, while, play key roles in various neurodegenerative disorders. Here, platinized nanocavity carbon electrodes are employed to analyze cytosolic catecholamines in a single living PC12 cell, which is not easily quantified using the classic electrodes. The confined structure and excellent conductivity in the platinized nanocavity accelerate the electron transfer of the DA, resulting in a low detection limit down to 50 nM. The sensitivity of DA detection is improved to be 10.73 pA mM-1 nm-1 in the response range of 50 nM-100 μM, which guarantees quantitative analysis of cytosolic catecholamines with low abundance. Eventually, the platinized nanocavity electrode is employed to detect cytosolic catecholamines in a single PC12 cell without an obvious interruption of cellular catecholamine level. The cytosolic catecholamines in a single PC12 cell is measured in situ to be 0.1 μM, which is achieved for the first time at the single cell level using the electrochemical method. The results demonstrate that the nanocavity electrode with a high sensitivity could offer a promising means to dynamically track catecholamines in a single cell.
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Affiliation(s)
- Yuanyuan Ma
- The State Key Lab of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210093, China
| | - Yanyu Ma
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Kang Liu
- The State Key Lab of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210093, China
| | - Dengchao Wang
- School of Chemical Sciences, University of Chinese Academy of Science, Beijing, 100190, China
| | - Rujia Liu
- School of Chemical Sciences, University of Chinese Academy of Science, Beijing, 100190, China
| | - Quanchi Chen
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
| | - Dechen Jiang
- The State Key Lab of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210093, China
| | - Rongrong Pan
- The State Key Lab of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210093, China.
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2
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González Brito R, Montenegro P, Méndez A, Shabgahi RE, Pasquarelli A, Borges R. Analytical Determination of Serotonin Exocytosis in Human Platelets with BDD-on-Quartz MEA Devices. BIOSENSORS 2024; 14:75. [PMID: 38391994 PMCID: PMC10886747 DOI: 10.3390/bios14020075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/24/2024]
Abstract
Amperometry is arguably the most widely used technique for studying the exocytosis of biological amines. However, the scarcity of human tissues, particularly in the context of neurological diseases, poses a challenge for exocytosis research. Human platelets, which accumulate 90% of blood serotonin, release it through exocytosis. Nevertheless, single-cell amperometry with encapsulated carbon fibers is impractical due to the small size of platelets and the limited number of secretory granules on each platelet. The recent technological improvements in amperometric multi-electrode array (MEA) devices allow simultaneous recordings from several high-performance electrodes. In this paper, we present a comparison of three MEA boron-doped diamond (BDD) devices for studying serotonin exocytosis in human platelets: (i) the BDD-on-glass MEA, (ii) the BDD-on-silicon MEA, and (iii) the BDD on amorphous quartz MEA (BDD-on-quartz MEA). Transparent electrodes offer several advantages for observing living cells, and in the case of platelets, they control activation/aggregation. BDD-on-quartz offers the advantage over previous materials of combining excellent electrochemical properties with transparency for microscopic observation. These devices are opening exciting perspectives for clinical applications.
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Affiliation(s)
- Rosalía González Brito
- Pharmacology Unit, Medical School, Universidad de La Laguna, 38200 La Laguna, Spain; (R.G.B.); (P.M.); (A.M.)
| | - Pablo Montenegro
- Pharmacology Unit, Medical School, Universidad de La Laguna, 38200 La Laguna, Spain; (R.G.B.); (P.M.); (A.M.)
| | - Alicia Méndez
- Pharmacology Unit, Medical School, Universidad de La Laguna, 38200 La Laguna, Spain; (R.G.B.); (P.M.); (A.M.)
| | - Ramtin E. Shabgahi
- Institute of Electron Devices and Circuits, Ulm University, 89069 Ulm, Germany; (R.E.S.); (A.P.)
| | - Alberto Pasquarelli
- Institute of Electron Devices and Circuits, Ulm University, 89069 Ulm, Germany; (R.E.S.); (A.P.)
| | - Ricardo Borges
- Pharmacology Unit, Medical School, Universidad de La Laguna, 38200 La Laguna, Spain; (R.G.B.); (P.M.); (A.M.)
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3
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Huang K, Wang Y, Qin Z, Liu H, Zhang H, Wang J, Li X, Liu X, Jiang H, Wang X. Ultrafast Subcellular Biolabeling and Bioresponsive Real-Time Monitoring for Targeting Cancer Theranostics. ACS Sens 2023; 8:3563-3573. [PMID: 37697622 DOI: 10.1021/acssensors.3c01210] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
Cell heterogeneity poses a formidable challenge for tumor theranostics, requiring high-resolution strategies for intercellular bioanalysis between single cells. Nanoelectrode-based electrochemical analysis has attracted much attention due to its advantages of label-free characteristics, relatively low cost, and ultra-high resolution for single-cell analysis. Here, we have designed and developed a subcellular biolabeling and bioresponsive real-time monitoring strategy for precise bioimaging-guided cancer diagnosis and theranostics. Our observations revealed the apparent intracellular migration of biosynthetic Au nanoclusters (Au NCs) at different subcellular locations, i.e., from the mitochondria to the mitochondrion-free region in the cytoplasm, which may be helpful for controlling over the biosynthesis of Au NCs. Considering the precise biolabeling advantage of the intracellular biosynthetic Au NCs for biomedical imaging of cancers, it is important to realize the biosynthetic Au NC-enabled precise control in real-time theranostics of cancer cells. Therefore, this work raises the possibility to achieve subcellular monitoring of H2O2 for targeting cancer theranostics, thereby providing a new way to explore the underlying mechanism and imaging-guided tumor theranostics.
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Affiliation(s)
- Ke Huang
- State Key Laboratory of Digital Medical Engineering, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yihan Wang
- State Key Laboratory of Digital Medical Engineering, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Zhaojian Qin
- State Key Laboratory of Digital Medical Engineering, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Hao Liu
- State Key Laboratory of Digital Medical Engineering, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Hao Zhang
- State Key Laboratory of Digital Medical Engineering, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Jinpeng Wang
- State Key Laboratory of Digital Medical Engineering, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Xintong Li
- State Key Laboratory of Digital Medical Engineering, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Xiaohui Liu
- State Key Laboratory of Digital Medical Engineering, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Hui Jiang
- State Key Laboratory of Digital Medical Engineering, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Xuemei Wang
- State Key Laboratory of Digital Medical Engineering, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
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4
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He X, Ewing AG. Hofmeister Series: From Aqueous Solution of Biomolecules to Single Cells and Nanovesicles. Chembiochem 2023; 24:e202200694. [PMID: 37043703 DOI: 10.1002/cbic.202200694] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/30/2023] [Indexed: 04/14/2023]
Abstract
Hofmeister effects play a critical role in numerous physicochemical and biological phenomena, including the solubility and/or accumulation of proteins, the activities of enzymes, ion transport in biochannels, the structure of lipid bilayers, and the dynamics of vesicle opening and exocytosis. This minireview focuses on how ionic specificity affects the physicochemical properties of biomolecules to regulate cellular exocytosis, vesicular content, and nanovesicle opening. We summarize recent progress in further understanding Hofmeister effects on biomacromolecules and their applications in biological systems. These important steps have increased our understanding of the Hofmeister effects on cellular exocytosis, vesicular content, and nanovesicle opening. Increasing evidence is firmly establishing that the ions along the Hofmeister series play an important role in living organisms that has often been ignored.
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Affiliation(s)
- Xiulan He
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Andrew G Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
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5
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Zhang S, Qin H, Cheng S, Zhang Y, Gao N, Zhang M. An Electrochemical Nanosensor for Monitoring the Dynamics of Intracellular H 2 O 2 Upon NADH Treatment. Angew Chem Int Ed Engl 2023; 62:e202300083. [PMID: 36807970 DOI: 10.1002/anie.202300083] [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: 01/03/2023] [Revised: 02/13/2023] [Accepted: 02/20/2023] [Indexed: 02/22/2023]
Abstract
Reactive oxygen species (ROS)-based therapeutic strategies play an important role in cancer treatment. However, in situ, real-time and quantitative analysis of intracellular ROS in cancer treatment for drug screening is still a challenge. Herein we report one selective hydrogen peroxide (H2 O2 ) electrochemical nanosensor, which is prepared by electrodeposition of Prussian blue (PB) and polyethylenedioxythiophene (PEDOT) onto carbon fiber nanoelectrode. With the nanosensor, we find that the level of intracellular H2 O2 increases with NADH treatment and that increase is dose-dependent to the concentration of NADH. High-dose of NADH (above 10 mM) can induce cell death and intratumoral injection of NADH is validated for inhibiting tumor growth in mice. This study highlights the potential of electrochemical nanosensor for tracking and understanding the role of H2 O2 in screening new anticancer drug.
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Affiliation(s)
- Shuai Zhang
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Hancheng Qin
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Shuwen Cheng
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Yue Zhang
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Nan Gao
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Meining Zhang
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
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6
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Da Y, Luo S, Tian Y. Real-Time Monitoring of Neurotransmitters in the Brain of Living Animals. ACS APPLIED MATERIALS & INTERFACES 2023; 15:138-157. [PMID: 35394736 DOI: 10.1021/acsami.2c02740] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Neurotransmitters, as important chemical small molecules, perform the function of neural signal transmission from cell to cell. Excess concentrations of neurotransmitters are often closely associated with brain diseases, such as Alzheimer's disease, depression, schizophrenia, and Parkinson's disease. On the other hand, the release of neurotransmitters under the induced stimulation indicates the occurrence of reward-related behaviors, including food and drug addiction. Therefore, to understand the physiological and pathological functions of neurotransmitters, especially in complex environments of the living brain, it is urgent to develop effective tools to monitor their dynamics with high sensitivity and specificity. Over the past 30 years, significant advances in electrochemical sensors and optical probes have brought new possibilities for studying neurons and neural circuits by monitoring the changes in neurotransmitters. This Review focuses on the progress in the construction of sensors for in vivo analysis of neurotransmitters in the brain and summarizes current attempts to address key issues in the development of sensors with high selectivity, sensitivity, and stability. Combined with the latest advances in technologies and methods, several strategies for sensor construction are provided for recording chemical signal changes in the complex environment of the brain.
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Affiliation(s)
- Yifan Da
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Shihua Luo
- Department of Traumatology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
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7
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Wu F, Yu P, Mao L. Multi-Spatiotemporal Probing of Neurochemical Events by Advanced Electrochemical Sensing Methods. Angew Chem Int Ed Engl 2023; 62:e202208872. [PMID: 36284258 DOI: 10.1002/anie.202208872] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Indexed: 11/05/2022]
Abstract
Neurochemical events involving biosignals of different time and space dimensionalities constitute the complex basis of neurological functions and diseases. In view of this fact, electrochemical measurements enabling real-time quantification of neurochemicals at multiple levels of spatiotemporal resolution can provide informative clues to decode the molecular networks bridging vesicles and brains. This Minireview focuses on how scientific questions regarding the properties of single vesicles, neurotransmitter release kinetics, interstitial neurochemical dynamics, and multisignal interconnections in vivo have driven the design of electrochemical nano/microsensors, sensing interface engineering, and signal/data processing. An outlook for the future frontline in this realm will also be provided.
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Affiliation(s)
- Fei Wu
- College of Chemistry, Beijing Normal University, Beijing, 100875, China.,Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lanqun Mao
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
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8
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Zhao T, Wang JW, Zhang HS, Zheng X, Chen YP, Tang H, Jiang JH. Development of Dual-Nanopore Biosensors for Detection of Intracellular Dopamine and Dopamine Efflux from Single PC12 Cell. Anal Chem 2022; 94:15541-15545. [DOI: 10.1021/acs.analchem.2c04050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tao Zhao
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Jing-Wen Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Hong-Shuai Zhang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Xin Zheng
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Yi-Ping Chen
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Hao Tang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Jian-Hui Jiang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
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9
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Li X, Jin Y, Zhu F, Liu R, Jiang Y, Jiang Y, Mao L. Electrochemical Conjugation of Aptamers on a Carbon Fiber Microelectrode Enables Highly Stable and Selective In Vivo Neurosensing. Angew Chem Int Ed Engl 2022; 61:e202208121. [DOI: 10.1002/anie.202208121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Xin Li
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Ying Jin
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Fenghui Zhu
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Ran Liu
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Yan Jiang
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Ying Jiang
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Lanqun Mao
- College of Chemistry Beijing Normal University Beijing 100875 China
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10
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Li X, Jin Y, Zhu F, Liu R, Jiang Y, Jiang Y, Mao L. Electrochemical Conjugation of Aptamers on Carbon Fiber Microelectrode Enables Highly Stable and Selective In Vivo Neurosensing. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xin Li
- Beijing Normal University College of Chemistry CHINA
| | - Ying Jin
- Beijing Normal University College of Chemistry CHINA
| | - Fenghui Zhu
- Beijing Normal University College of Chemistry CHINA
| | - Ran Liu
- Beijing Normal University College of Chemistry CHINA
| | - Yan Jiang
- Beijing Normal University College of Chemistry CHINA
| | - Ying Jiang
- Beijing Normal University College of Chemistry CHINA
| | - Lanqun Mao
- Beijing Normal University College of Chemistry No.19, Xinjiekouwai St, Haidian District 100875 Beijing CHINA
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11
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Li R, Zhang D, Li X, Qi H. Sensitive and selective electrogenerated chemiluminescence aptasensing method for the determination of dopamine based on target-induced conformational displacement. Bioelectrochemistry 2022; 146:108148. [DOI: 10.1016/j.bioelechem.2022.108148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 03/25/2022] [Accepted: 04/26/2022] [Indexed: 11/02/2022]
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12
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Zhang Y, Liu J, Jing X, Li F, Mao X, Li M. Monitoring of Intracellular Vesicles in Cultured Neurons at Different Growth Stages Using Intracellular Vesicle Electrochemical Cytometry. ELECTROANAL 2022. [DOI: 10.1002/elan.202100343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yueyue Zhang
- Institute of Molecular Medicine Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
| | - Jiangbo Liu
- Institute of Molecular Medicine Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
| | - Xinxin Jing
- Institute of Molecular Medicine Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
| | - Fan Li
- Institute of Molecular Medicine Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
| | - Xiuhai Mao
- Institute of Molecular Medicine Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
| | - Min Li
- Institute of Molecular Medicine Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
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13
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Wang Y, Gu C, Ewing AG. Single‐Vesicle Electrochemistry Following Repetitive Stimulation Reveals a Mechanism for Plasticity Changes with Iron Deficiency. Angew Chem Int Ed Engl 2022; 61:e202200716. [PMID: 35267233 PMCID: PMC9315038 DOI: 10.1002/anie.202200716] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Indexed: 12/25/2022]
Abstract
Deficiency of iron, the most abundant transition metal in the brain and important for neuronal activity, is known to affect synaptic plasticity, causing learning and memory deficits. How iron deficiency impacts plasticity by altering neurotransmission at the cellular level is not fully understood. We used electrochemical methods to study the effect of iron deficiency on plasticity with repetitive stimulation. We show that during iron deficiency, repetitive stimulation causes significant decrease in exocytotic release without changing vesicular content. This results in a lower fraction of release, opposite to the control group, upon repetitive stimulation. These changes were partially reversible by iron repletion. This finding suggests that iron deficiency has a negative effect on plasticity by decreasing the fraction of vesicular release in response to repetitive stimulation. This provides a putative mechanism for how iron deficiency modulates plasticity.
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Affiliation(s)
- Ying Wang
- Department of Forensic Medicine School of Basic Medicine and Biological Sciences Affiliated Guangji Hospital Soochow University 215123 Suzhou China
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivagen 10 41296 Gothenburg Sweden
| | - Chaoyi Gu
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivagen 10 41296 Gothenburg Sweden
| | - Andrew G. Ewing
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivagen 10 41296 Gothenburg Sweden
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14
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Wu WT, Chen X, Jiao YT, Fan WT, Liu YL, Huang WH. Versatile Construction of Biomimetic Nanosensors for Electrochemical Monitoring of Intracellular Glutathione. Angew Chem Int Ed Engl 2022; 61:e202115820. [PMID: 35134265 DOI: 10.1002/anie.202115820] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Indexed: 11/08/2022]
Abstract
The current strategies for nanoelectrode functionalization usually involve sophisticated modification procedures, uncontrollable and unstable modifier assembly, as well as a limited variety of modifiers. To address this issue, we propose a versatile strategy for large-scale synthesis of biomimetic molecular catalysts (BMCs) modified nanowires (NWs) to construct functionalized electrochemical nanosensors. This design protocol employs an easy, controllable and stable assembly of diverse BMCs-poly(3,4-ethylenedioxythiophene) (PEDOT) composites on conductive NWs. The intrinsic catalytic activity of BMCs combined with outstanding electron transfer ability of conductive polymer enables the nanosensors to sensitively and selectively detect various biomolecules. Further application of sulfonated cobalt phthalocyanine functionalized nanosensors achieves real-time electrochemical monitoring of intracellular glutathione levels and its redox homeostasis in single living cells for the first time.
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Affiliation(s)
- Wen-Tao Wu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Xi Chen
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yu-Ting Jiao
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wen-Ting Fan
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yan-Ling Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wei-Hua Huang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
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15
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He X, Ewing AG. Simultaneous Counting of Molecules in the Halo and Dense-Core of Nanovesicles by Regulating Dynamics of Vesicle Opening. Angew Chem Int Ed Engl 2022; 61:e202116217. [PMID: 35129861 PMCID: PMC9306628 DOI: 10.1002/anie.202116217] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Indexed: 01/09/2023]
Abstract
We report the discovery that in the presence of chaotropic anions (SCN−) the opening of nanometer biological vesicles at an electrified interface often becomes a two‐step process (around 30 % doublet peaks). We have then used this to independently count molecules in each subvesicular compartment, the halo and protein dense‐core, and the fraction of catecholamine binding to the dense‐core is 68 %. Moreover, we differentiated two distinct populations of large dense‐core vesicles (LDCVs) and quantified their content, which might correspond to immature (43 %) and mature (30 %) LDCVs, to reveal differences in their biogenesis. We speculate this is caused by an increase in the electrostatic attraction between protonated catecholamine and the negatively charged dense‐core following adsorption of SCN−.
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Affiliation(s)
- Xiulan He
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Andrew G Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
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16
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Yue Q, Wang K, Guan M, Zhao Z, Li X, Yu P, Mao L. Single-Vesicle Electrochemistry Reveals Sex Difference in Vesicular Storage and Release of Catecholamine. Angew Chem Int Ed Engl 2022; 61:e202117596. [PMID: 35112448 DOI: 10.1002/anie.202117596] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Indexed: 12/17/2022]
Abstract
Quantitative measurements of sex difference in vesicle chemistry (i.e., chemical storage and release) at the single-vesicle level are essential to understand sex differences in cognitive behaviors; however, such measurements are very challenging to conventional analytical methods. By using single-vesicle electrochemistry, we find the duration of single exocytotic events of chromaffin cells prepared from male rats is statistically longer than that from female rats, leading to more neurotransmitter released in the male group. Further analysis reveals that a higher percentage of vesicles in the female group release part of the neurotransmitter, i.e., partial release, during exocytosis than that in male group. This sex dimorphism in neurotransmitter release in exocytosis might relate to the sex difference in the expression of voltage-dependent calcium channels and membrane lipid composition. Our finding offers the first experimental evidence that sex dimorphism even exists in vesicle chemistry, providing a brand new viewpoint for understanding the sex dimorphism in exocytosis.
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Affiliation(s)
- Qingwei Yue
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kai Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China
| | - Ming Guan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China
| | - Zhenwen Zhao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xianchan Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China.,College of Chemistry, Beijing Normal University, Beijing, 100875, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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17
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Ewing AG, Wang Y, Gu C. Single‐Vesicle Electrochemistry Following Repetitive Stimulation Reveals a Mechanism for Plasticity Changes with Iron Deficiency. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Andrew G. Ewing
- University of Gothenburg: Goteborgs Universitet Chemistry and Molecular Biology Kemivägen 10 41296 Gothenburg SWEDEN
| | - Ying Wang
- University of Gothenburg: Goteborgs Universitet Chemistry and Molecular Biology SWEDEN
| | - Chaoyi Gu
- University of Gothenburg: Goteborgs Universitet Chemistry and Molecular Biology SWEDEN
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18
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He X, Ewing AG. Simultaneous Counting of Molecules in the Halo and Dense‐Core of Nanovesicles by Regulating Dynamics of Vesicle Opening. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiulan He
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
| | - Andrew G. Ewing
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
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19
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Wu W, Chen X, Jiao Y, Fan W, Liu Y, Huang W. Versatile Construction of Biomimetic Nanosensors for Electrochemical Monitoring of Intracellular Glutathione. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wen‐Tao Wu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Xi Chen
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Yu‐Ting Jiao
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Wen‐Ting Fan
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Yan‐Ling Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Wei‐Hua Huang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
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20
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Yue Q, Wang K, Guan M, Zhao Z, Li X, Yu P, Mao L. Single‐Vesicle Electrochemistry Reveals Sex Difference in Vesicular Storage and Release of Catecholamine. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qingwei Yue
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Kai Wang
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
| | - Ming Guan
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
| | - Zhenwen Zhao
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xianchan Li
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- College of Chemistry Beijing Normal University Beijing 100875 China
- University of Chinese Academy of Sciences Beijing 100049 China
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21
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Hu K, Le Vo KL, Hatamie A, Ewing AG. Quantifying Intracellular Single Vesicular Catecholamine Concentration with Open Carbon Nanopipettes to Unveil the Effect of L‐DOPA on Vesicular Structure. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113406] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Keke Hu
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
| | - Kim Long Le Vo
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
| | - Amir Hatamie
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
| | - Andrew G. Ewing
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
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22
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Hu K, Le Vo KL, Hatamie A, Ewing AG. Quantifying Intracellular Single Vesicular Catecholamine Concentration with Open Carbon Nanopipettes to Unveil the Effect of L-DOPA on Vesicular Structure. Angew Chem Int Ed Engl 2021; 61:e202113406. [PMID: 34734466 PMCID: PMC9299131 DOI: 10.1002/anie.202113406] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Indexed: 12/03/2022]
Abstract
Understanding the regulatory mechanisms of exocytosis is essential for uncovering the pathologies of neuronal disorders and developing related pharmaceuticals. In this work intracellular vesicle impact electrochemical cytometry (IVIEC) measurements with different‐sized (50–500 nm radius) open carbon nanopipettes (CNPs) were performed to quantify the vesicular content and release kinetics of specific vesicle populations grouped by orifice sizes. Intracellular vesicles with radius below 100 nm were captured and narrowed between 50 and 100 nm. On the basis of this, single vesicular catecholamine concentrations in the intracellular environment were quantified as 0.23–1.1 M. Our results with L‐3,4‐dihydroxyphenylalanine (L‐DOPA)‐exposure indicate that L‐DOPA regulates exocytosis by increasing the dense core size and vesicular content while catecholamine concentrations did not show obvious alterations. These were all achieved simultaneously and relatively noninvasively with open CNPs.
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Affiliation(s)
- Keke Hu
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Kim Long Le Vo
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Amir Hatamie
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Andrew G Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
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23
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Wang Y, Gu C, Patel BA, Ewing AG. Nano‐analysis Reveals High Fraction of Serotonin Release during Exocytosis from a Gut Epithelium Model Cell. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ying Wang
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivgen 10 41296 Gothenburg Sweden
| | - Chaoyi Gu
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivgen 10 41296 Gothenburg Sweden
| | - Bhavik Anil Patel
- Centre for Stress and Age-Related Disease School of Pharmacy and Biomolecular Sciences University of Brighton Brighton BN2 4GJ UK
| | - Andrew G. Ewing
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivgen 10 41296 Gothenburg Sweden
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24
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Cao M, Wang H, Tang H, Zhao D, Li Y. Enzyme-Encapsulated Zeolitic Imidazolate Frameworks Formed Inside the Single Glass Nanopore: Catalytic Performance and Sensing Application. Anal Chem 2021; 93:12257-12264. [PMID: 34459201 DOI: 10.1021/acs.analchem.1c01790] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal-organic frameworks (MOFs) can improve the stability and activity of enzymes under the MOF encapsulation. However, it remains a challenge to explore the effects of the MOF environment on enzymatic activity in a confined space. In this work, we immobilized the enzyme inside a glass nanopore to study the catalytic activity and stability of the enzyme in the MOF environment. Horseradish peroxidase (HRP) is encapsulated in zeolitic imidazolate framework-90 (ZIF-90) and zeolitic imidazolate framework-8 (ZIF-8), which are used as the catalytic platforms. The HRP can catalyze 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)diammonium salt (ABTS) molecules to generate ABTS+ ions, and the change of the transmembrane ion current will be monitored in real time. As the concentration of H2O2 increases, the amount of produced ABTS+ will increase; thus, the ionic current increases. The effects of the MOF structure on enzyme activity and stability are also investigated. The HRP encapsulated in the MOF and modified inside the nanopore provides a novel and unlabeled design for studying enzymatic catalysis in a confined environment, which should have extensive applications in chemical-/bio-sensing, electrocatalysis, and fundamental electrochemistry.
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Affiliation(s)
- Mengya Cao
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Hao Wang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Haoran Tang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Dandan Zhao
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
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25
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Wu W, Jiang H, Qi Y, Fan W, Yan J, Liu Y, Huang W. Large‐Scale Synthesis of Functionalized Nanowires to Construct Nanoelectrodes for Intracellular Sensing. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106251] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Wen‐Tao Wu
- College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Hong Jiang
- College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Yu‐Ting Qi
- College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Wen‐Ting Fan
- College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Jing Yan
- College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Yan‐Ling Liu
- College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Wei‐Hua Huang
- College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
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26
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Wang Y, Gu C, Patel BA, Ewing AG. Nano-analysis reveals high fraction of serotonin release during exocytosis from a gut epithelium model cell. Angew Chem Int Ed Engl 2021; 60:23552-23556. [PMID: 34363735 PMCID: PMC8597005 DOI: 10.1002/anie.202108193] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Indexed: 12/02/2022]
Abstract
Electrochemical methods were used to explore the exocytotic nature of serotonin (5‐HT) release in human carcinoid BON cells, an in vitro human enterochromaffin cell model, to understand the mechanisms operating the release of gut‐derived 5‐HT in the intestinal mucosal epithelium. We show that the fractional vesicular 5‐HT release in BON cells is 80 % compared to previous work in pancreatic beta cells (34 %). The fractional release increased from 80 % in control BON cells to 87 % with 5‐HT preincubation and nearly 100 % with the combination of 5‐HT and the 5‐HT4 autoreceptor agonist, cisapride. Thus, partial release is the primary mechanism of exocytosis in BON cells, resulting in a variable amount of the vesicular content being released. Factors that control secretion of 5‐HT from enterochromaffin cells or BON cells are important as partial release provides a mechanism for development of effective therapeutic strategies to treat gastrointestinal diseases.
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Affiliation(s)
- Ying Wang
- University of Gothenburg: Goteborgs Universitet, Chemistry and Molecular Biology, SWEDEN
| | - Chaoyi Gu
- University of Gothenburg: Goteborgs Universitet, Chemistry and Molecular Biology, SWEDEN
| | | | - Andrew G Ewing
- Chalmers Institute of Technology, Chemical and Biological Engineering, Kemivägen 10, 41296, Göteborg, SWEDEN
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27
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Wu WT, Jiang H, Qi YT, Fan WT, Yan J, Liu YL, Huang WH. Large-Scale Synthesis of Functionalized Nanowires to Construct Nanoelectrodes for Intracellular Sensing. Angew Chem Int Ed Engl 2021; 60:19337-19343. [PMID: 34121300 DOI: 10.1002/anie.202106251] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 06/03/2021] [Indexed: 01/15/2023]
Abstract
A strategy for one-pot and large-scale synthesis of functionalized core-shell nanowires (NWs) to high-efficiently construct single nanowire electrodes is proposed. Based on the polymerization reaction between 3,4-ethylenedioxythiophene (EDOT) and noble metal cations, manifold noble metal nanoparticles-polyEDOT (PEDOT) nanocomposites can be uniformly modified on the surface of any nonconductive NWs. This provides a facile and versatile approach to produce massive number of core-shell NWs with excellent conductivity, adjustable size, and well-designed properties. Nanoelectrodes manufactured with such core-shell NWs exhibit excellent electrochemical performance and mechanical stability as well as favorable antifouling properties, which are demonstrated by in situ intracellular monitoring of biological molecules (nitric oxide) and unraveling its relevant unclear signaling pathway inside single living cells.
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Affiliation(s)
- Wen-Tao Wu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Hong Jiang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yu-Ting Qi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wen-Ting Fan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Jing Yan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yan-Ling Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wei-Hua Huang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
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28
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Wang X, Xu T, Zhang Y, Gao N, Feng T, Wang S, Zhang M. In Vivo Detection of Redox-Inactive Neurochemicals in the Rat Brain with an Ion Transfer Microsensor. ACS Sens 2021; 6:2757-2762. [PMID: 34191484 DOI: 10.1021/acssensors.1c00978] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Electrochemical tracking of redox-inactive neurochemicals remain a challenge due to chemical inertness, almost no Faraday electron transfer for these species, and the complex brain atmosphere. In this work, we demonstrate a low-cost, simple-making liquid/liquid interface microsensor (LLIM) to monitor redox-inactive neurochemicals in the rat brain. Taking choline (Ch) as an example, based on the difference in solvation energies of Ch in cerebrospinal fluid (aqueous phase) and 1,2-dichloroethane (1,2-DCE; organic phase), Ch is recognized in the specific ion-transfer potential and distinctive ion-transfer current signals. The LLIM has an excellent response to Ch with good linearity and selectivity, and the detection limit is 0.37 μM. The LLIM can monitor the dynamics of Ch in the cortex of the rat brain by both local microinfusion and intraperitoneal injection of Ch. This work first demonstrates that the LLIM can be successfully applied in the brain and obtain electrochemical signals in such a sophisticated system, allowing one new perspective of sensing at the liquid/liquid interface for nonelectrically active substances in vivo to understand the physiological function of the brain.
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Affiliation(s)
- Xiaofang Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Tianci Xu
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Yue Zhang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Nan Gao
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Taotao Feng
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Shujun Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Meining Zhang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
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29
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Combined electrochemistry and mass spectrometry imaging to interrogate the mechanism of action of modafinil, a cognition-enhancing drug, at the cellular and sub-cellular level. QRB DISCOVERY 2021. [PMID: 37529675 PMCID: PMC10392688 DOI: 10.1017/qrd.2021.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
AbstractModafinil is a mild psychostimulant-like drug enhancing wakefulness, improving attention and developing performance in various cognitive tasks, but its mechanism of action is not completely understood. This is the first combination of amperometry, electrochemical cytometry and mass spectrometry to interrogate the mechanism of action of a drug, here modafinil, at cellular and sub-cellular level. We employed single-cell amperometry (SCA) and intracellular vesicle impact electrochemical cytometry (IVIEC) to investigate the alterations in exocytotic release and vesicular catecholamine storage following modafinil treatment. The SCA results reveal that modafinil slows down the exocytosis process so that, the number of catecholamines released per exocytotic event is enhanced in the modafinil-treated cells. Also, IVIEC results offer an upregulation effect of modafinil on the vesicular catecholamine storage. Mass spectrometry imaging by time-of-flight secondary ion mass spectrometry (ToF-SIMS) illustrates that treatment with modafinil reduces the cylindrical-shaped phosphatidylcholine at the cellular membrane, while the high curvature lipids with conical structures such as phosphatidylethanolamine and phosphatidylinositol are elevated after modafinil treatment. Combining the results obtained by SCA, IVIEC and ToF-SIMS suggests that modafinil-treated cells release a larger portion of their vesicular content at least in part by changing the lipid composition of the cell membrane, suggesting regulation of cognition.
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30
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Yang X, Zhang F, Wu W, Tang Y, Yan J, Liu Y, Amatore C, Huang W. Quantitative Nano‐amperometric Measurement of Intravesicular Glutamate Content and its Sub‐Quantal Release by Living Neurons. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100882] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiao‐Ke Yang
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Fu‐Li Zhang
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Wen‐Tao Wu
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Yun Tang
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Jing Yan
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Yan‐Ling Liu
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Christian Amatore
- State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
- PASTEUR, Départment de Chimie École Normale Supérieure PSL Research University Sorbonne University UPMC Univ. Paris 06 CNRS 24 rue Lhomond 75005 Paris France
| | - Wei‐Hua Huang
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
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31
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Yang XK, Zhang FL, Wu WT, Tang Y, Yan J, Liu YL, Amatore C, Huang WH. Quantitative Nano-amperometric Measurement of Intravesicular Glutamate Content and its Sub-Quantal Release by Living Neurons. Angew Chem Int Ed Engl 2021; 60:15803-15808. [PMID: 33929780 DOI: 10.1002/anie.202100882] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Indexed: 11/10/2022]
Abstract
Quantitative measurements of intravesicular glutamate (Glu) and of transient exocytotic release contents directly from individual living neurons are highly desired for understanding the mechanisms (full or sub-quantal release?) of synaptic transmission and plasticity. However, this could not be achieved so far due to the lack of adequate experimental strategies relying on selective and sensitive Glu nanosensors. Herein, we introduce a novel electrochemical Glu nanobiosensor based on a single SiC nanowire that can selectively measure in real-time Glu fluxes released via exocytosis by large Glu vesicles (ca. 125 nm diameter) present in single hippocampal axonal varicosities as well as their intravesicular content before exocytosis. These measurements revealed a sub-quantal release mode in living hippocampal neurons, viz., only ca. one third to one half of intravesicular Glu molecules are released by individual vesicles during exocytotic events. Importantly, this fraction remained practically the same when hippocampal neurons were pretreated with L-Glu-precursor L-glutamine, while it significantly increased after zinc treatment, although in both cases the intravesicular contents were drastically affected.
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Affiliation(s)
- Xiao-Ke Yang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Fu-Li Zhang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wen-Tao Wu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yun Tang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Jing Yan
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yan-Ling Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Christian Amatore
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.,PASTEUR, Départment de Chimie, École Normale Supérieure, PSL Research University, Sorbonne University, UPMC Univ. Paris 06, CNRS, 24 rue Lhomond, 75005, Paris, France
| | - Wei-Hua Huang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
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32
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Hatamie A, Ren L, Dou H, Gandasi NR, Rorsman P, Ewing A. Nanoscale Amperometry Reveals that Only a Fraction of Vesicular Serotonin Content is Released During Exocytosis from Beta Cells. Angew Chem Int Ed Engl 2021; 60:7593-7596. [PMID: 33340209 PMCID: PMC8049002 DOI: 10.1002/anie.202015902] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Indexed: 12/23/2022]
Abstract
Recent work has shown that chemical release during the fundamental cellular process of exocytosis in model cell lines is not all-or-none. We tested this theory for vesicular release from single pancreatic beta cells. The vesicles in these cells release insulin, but also serotonin, which is detectible with amperometric methods. Traditionally, it is assumed that exocytosis in beta cells is all-or-none. Here, we use a multidisciplinary approach involving nanoscale amperometric chemical methods to explore the chemical nature of insulin exocytosis. We amperometrically quantified the number of serotonin molecules stored inside of individual nanoscale vesicles (39 317±1611) in the cell cytoplasm before exocytosis and the number of serotonin molecules released from single cells (13 310±1127) for each stimulated exocytosis event. Thus, beta cells release only one-third of their granule content, clearly supporting partial release in this system. We discuss these observations in the context of type-2 diabetes.
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Affiliation(s)
- Amir Hatamie
- Department of Chemistry and Molecular BiologyUniversity of GothenburgKemivägen 1041296GothenburgSweden
| | - Lin Ren
- Department of Chemistry and Molecular BiologyUniversity of GothenburgKemivägen 1041296GothenburgSweden
| | - Haiqiang Dou
- Department of Physiology, Sahlgrenska AcademyUniversity of GothenburgMedicinaregatan 11–1341390GothenburgSweden
| | - Nikhil R. Gandasi
- Department of Physiology, Sahlgrenska AcademyUniversity of GothenburgMedicinaregatan 11–1341390GothenburgSweden
| | - Patrik Rorsman
- Department of Physiology, Sahlgrenska AcademyUniversity of GothenburgMedicinaregatan 11–1341390GothenburgSweden
- Oxford Centre for Diabetes, Endocrinology and MetabolismUniversity of OxfordChurchill HospitalOxfordOX3 7LJUK
| | - Andrew Ewing
- Department of Chemistry and Molecular BiologyUniversity of GothenburgKemivägen 1041296GothenburgSweden
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33
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Wang Y, Ewing A. Electrochemical Quantification of Neurotransmitters in Single Live Cell Vesicles Shows Exocytosis is Predominantly Partial. Chembiochem 2021; 22:807-813. [PMID: 33174683 PMCID: PMC7984156 DOI: 10.1002/cbic.202000622] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/02/2020] [Indexed: 12/18/2022]
Abstract
Exocytosis plays an essential role in the communication between cells in the nervous system. Understanding the regulation of neurotransmitter release during exocytosis and the amount of neurotransmitter content that is stored in vesicles is of importance, as it provides fundamental insights to understand how the brain works and how neurons elicit a certain behavior. In this minireview, we summarize recent progress in amperometric measurements for monitoring exocytosis in single cells and electrochemical cytometry measurements of vesicular neurotransmitter content in individual vesicles. Important steps have increased our understanding of the different mechanisms of exocytosis. Increasing evidence is firmly establishing that partial release is the primary mechanism of release in multiple cell types.
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Affiliation(s)
- Ying Wang
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 412 96 Gothenburg, Sweden
| | - Andrew Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 412 96 Gothenburg, Sweden
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34
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Hatamie A, Ren L, Dou H, Gandasi NR, Rorsman P, Ewing A. Nanoscale Amperometry Reveals that Only a Fraction of Vesicular Serotonin Content is Released During Exocytosis from Beta Cells. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015902] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Amir Hatamie
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
| | - Lin Ren
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
| | - Haiqiang Dou
- Department of Physiology, Sahlgrenska Academy University of Gothenburg Medicinaregatan 11–13 41390 Gothenburg Sweden
| | - Nikhil R. Gandasi
- Department of Physiology, Sahlgrenska Academy University of Gothenburg Medicinaregatan 11–13 41390 Gothenburg Sweden
| | - Patrik Rorsman
- Department of Physiology, Sahlgrenska Academy University of Gothenburg Medicinaregatan 11–13 41390 Gothenburg Sweden
- Oxford Centre for Diabetes, Endocrinology and Metabolism University of Oxford Churchill Hospital Oxford OX3 7LJ UK
| | - Andrew Ewing
- Department of Chemistry and Molecular Biology University of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
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35
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Tan C, Robbins EM, Wu B, Cui XT. Recent Advances in In Vivo Neurochemical Monitoring. MICROMACHINES 2021; 12:208. [PMID: 33670703 PMCID: PMC7922317 DOI: 10.3390/mi12020208] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/11/2021] [Accepted: 02/14/2021] [Indexed: 12/20/2022]
Abstract
The brain is a complex network that accounts for only 5% of human mass but consumes 20% of our energy. Uncovering the mysteries of the brain's functions in motion, memory, learning, behavior, and mental health remains a hot but challenging topic. Neurochemicals in the brain, such as neurotransmitters, neuromodulators, gliotransmitters, hormones, and metabolism substrates and products, play vital roles in mediating and modulating normal brain function, and their abnormal release or imbalanced concentrations can cause various diseases, such as epilepsy, Alzheimer's disease, and Parkinson's disease. A wide range of techniques have been used to probe the concentrations of neurochemicals under normal, stimulated, diseased, and drug-induced conditions in order to understand the neurochemistry of drug mechanisms and develop diagnostic tools or therapies. Recent advancements in detection methods, device fabrication, and new materials have resulted in the development of neurochemical sensors with improved performance. However, direct in vivo measurements require a robust sensor that is highly sensitive and selective with minimal fouling and reduced inflammatory foreign body responses. Here, we review recent advances in neurochemical sensor development for in vivo studies, with a focus on electrochemical and optical probes. Other alternative methods are also compared. We discuss in detail the in vivo challenges for these methods and provide an outlook for future directions.
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Affiliation(s)
- Chao Tan
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA; (C.T.); (E.M.R.); (B.W.)
| | - Elaine M. Robbins
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA; (C.T.); (E.M.R.); (B.W.)
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Bingchen Wu
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA; (C.T.); (E.M.R.); (B.W.)
- Center for Neural Basis of Cognition, Pittsburgh, PA 15213, USA
| | - Xinyan Tracy Cui
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA; (C.T.); (E.M.R.); (B.W.)
- Center for Neural Basis of Cognition, Pittsburgh, PA 15213, USA
- McGowan Institute for Regenerative Medicine, Pittsburgh, PA 15219, USA
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36
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Affiliation(s)
- Keke Hu
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296 Gothenburg, Sweden
| | - Tho D. K. Nguyen
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296 Gothenburg, Sweden
| | - Stefania Rabasco
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296 Gothenburg, Sweden
| | - Pieter E. Oomen
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296 Gothenburg, Sweden
- ParaMedir B.V., 1e Energieweg 13, 9301 LK Roden, The Netherlands
| | - Andrew G. Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296 Gothenburg, Sweden
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37
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Yu P, Wei H, Zhong P, Xue Y, Wu F, Liu Y, Fei J, Mao L. Single‐Carbon‐Fiber‐Powered Microsensor for In Vivo Neurochemical Sensing with High Neuronal Compatibility. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010195] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ping Yu
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Huan Wei
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Peipei Zhong
- Key Laboratory of Environmentally Friendly Chemistry and Applications of the Ministry of Education College of Chemistry Xiangtan University Xiangtan Hunan 411105 China
| | - Yifei Xue
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Fei Wu
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yang Liu
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
| | - Junjie Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of the Ministry of Education College of Chemistry Xiangtan University Xiangtan Hunan 411105 China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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38
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Zhang C, Liu Z, Zhang L, Zhu A, Liao F, Wan J, Zhou J, Tian Y. A Robust Au−C≡C Functionalized Surface: Toward Real‐Time Mapping and Accurate Quantification of Fe
2+
in the Brains of Live AD Mouse Models. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006318] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Chuanping Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Dongchuan Road 500 Shanghai 200241 China
| | - Zhichao Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Dongchuan Road 500 Shanghai 200241 China
| | - Limin Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Dongchuan Road 500 Shanghai 200241 China
| | - Anwei Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Dongchuan Road 500 Shanghai 200241 China
| | - Fumin Liao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Dongchuan Road 500 Shanghai 200241 China
| | - Jingjing Wan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Dongchuan Road 500 Shanghai 200241 China
| | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Dongchuan Road 500 Shanghai 200241 China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University Dongchuan Road 500 Shanghai 200241 China
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39
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Zhang C, Liu Z, Zhang L, Zhu A, Liao F, Wan J, Zhou J, Tian Y. A Robust Au-C≡C Functionalized Surface: Toward Real-Time Mapping and Accurate Quantification of Fe 2+ in the Brains of Live AD Mouse Models. Angew Chem Int Ed Engl 2020; 59:20499-20507. [PMID: 32857422 DOI: 10.1002/anie.202006318] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/05/2020] [Indexed: 12/21/2022]
Abstract
Described here is that Au-C≡C bonds showed the highest stability under biological conditions, with abundant thiols, and the best electrochemical performance compared to Au-S and Au-Se bonds. The new finding was also confirmed by theorical calculations. Based on this finding, a specific molecule for recognition of Fe2+ was designed and synthesized, and used to create a selective and accurate electrochemical sensor for the quantification of Fe2+ . The present ratiometric strategy demonstrates high spatial resolution for real-time tracking of Fe2+ in a dynamic range of 0.2-120 μM. Finally, a microelectrode array with good biocompatibility was applied in imaging and biosensing of Fe2+ in the different regions of live mouse brains. Using this tool, it was discovered that the uptake of extracellular Fe2+ into the cortex and striatum was largely mediated by cyclic adenosine monophosphate (cAMP) through the CREB-related pathway in the brain of a mouse with Alzheimer's disease.
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Affiliation(s)
- Chuanping Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai, 200241, China
| | - Zhichao Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai, 200241, China
| | - Limin Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai, 200241, China
| | - Anwei Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai, 200241, China
| | - Fumin Liao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai, 200241, China
| | - Jingjing Wan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai, 200241, China
| | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai, 200241, China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai, 200241, China
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40
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Yu P, Wei H, Zhong P, Xue Y, Wu F, Liu Y, Fei J, Mao L. Single‐Carbon‐Fiber‐Powered Microsensor for In Vivo Neurochemical Sensing with High Neuronal Compatibility. Angew Chem Int Ed Engl 2020; 59:22652-22658. [DOI: 10.1002/anie.202010195] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Ping Yu
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Huan Wei
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Peipei Zhong
- Key Laboratory of Environmentally Friendly Chemistry and Applications of the Ministry of Education College of Chemistry Xiangtan University Xiangtan Hunan 411105 China
| | - Yifei Xue
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Fei Wu
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yang Liu
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
| | - Junjie Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of the Ministry of Education College of Chemistry Xiangtan University Xiangtan Hunan 411105 China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Science Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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41
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Larsson A, Majdi S, Oleinick A, Svir I, Dunevall J, Amatore C, Ewing AG. Intracellular Electrochemical Nanomeasurements Reveal that Exocytosis of Molecules at Living Neurons is Subquantal and Complex. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914564] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anna Larsson
- Department of Chemistry and Molecular BiologyUniversity of Gothenburg Kemivägen 10 412 96 Gothenburg Sweden
| | - Soodabeh Majdi
- Department of Chemistry and Molecular BiologyUniversity of Gothenburg Kemivägen 10 412 96 Gothenburg Sweden
| | - Alexander Oleinick
- CNRS, Ecole Normale Superieure—PSL research UniversitySorbonne University UMR 8640 “PASTEUR”Departement de Chimie 24 rue Lhomond 75005 Paris France
| | - Irina Svir
- CNRS, Ecole Normale Superieure—PSL research UniversitySorbonne University UMR 8640 “PASTEUR”Departement de Chimie 24 rue Lhomond 75005 Paris France
| | - Johan Dunevall
- Department of Chemistry and Molecular BiologyUniversity of Gothenburg Kemivägen 10 412 96 Gothenburg Sweden
| | - Christian Amatore
- CNRS, Ecole Normale Superieure—PSL research UniversitySorbonne University UMR 8640 “PASTEUR”Departement de Chimie 24 rue Lhomond 75005 Paris France
- State Key Laboratory of Physical Chemistry of Solid SurfacesCollege of Chemistry and Chemical EngineeringXiamen University 361005 Xiamen China
| | - Andrew G. Ewing
- Department of Chemistry and Molecular BiologyUniversity of Gothenburg Kemivägen 10 412 96 Gothenburg Sweden
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42
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Wang Y, Jin R, Sojic N, Jiang D, Chen H. Intracellular Wireless Analysis of Single Cells by Bipolar Electrochemiluminescence Confined in a Nanopipette. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002323] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yuling Wang
- State Key Laboratory of Analytical Chemistry for Life and School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210093 China
| | - Rong Jin
- State Key Laboratory of Analytical Chemistry for Life and School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210093 China
| | - Neso Sojic
- Bordeaux INP, Institute of Molecular Science (ISM), and CNRS UMR 5255 University of Bordeaux 33607 Pessac France
| | - Dechen Jiang
- State Key Laboratory of Analytical Chemistry for Life and School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210093 China
| | - Hong‐Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life and School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210093 China
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43
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Wang Y, Jin R, Sojic N, Jiang D, Chen H. Intracellular Wireless Analysis of Single Cells by Bipolar Electrochemiluminescence Confined in a Nanopipette. Angew Chem Int Ed Engl 2020; 59:10416-10420. [DOI: 10.1002/anie.202002323] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/11/2020] [Indexed: 12/23/2022]
Affiliation(s)
- Yuling Wang
- State Key Laboratory of Analytical Chemistry for Life and School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210093 China
| | - Rong Jin
- State Key Laboratory of Analytical Chemistry for Life and School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210093 China
| | - Neso Sojic
- Bordeaux INP, Institute of Molecular Science (ISM), and CNRS UMR 5255 University of Bordeaux 33607 Pessac France
| | - Dechen Jiang
- State Key Laboratory of Analytical Chemistry for Life and School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210093 China
| | - Hong‐Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life and School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210093 China
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44
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Larsson A, Majdi S, Oleinick A, Svir I, Dunevall J, Amatore C, Ewing AG. Intracellular Electrochemical Nanomeasurements Reveal that Exocytosis of Molecules at Living Neurons is Subquantal and Complex. Angew Chem Int Ed Engl 2020; 59:6711-6714. [PMID: 31967714 DOI: 10.1002/anie.201914564] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Indexed: 11/07/2022]
Abstract
Since the early work of Bernard Katz, the process of cellular chemical communication through exocytosis, quantal release, has been considered to be all or none. Recent evidence has shown exocytosis to be partial or "subquantal" at single-cell model systems, but there is a need to understand this at communicating nerve cells. Partial release allows nerve cells to control the signal at the site of release during individual events, for which the smaller the fraction released, the greater the range of regulation. Herein, we show that the fraction of the vesicular octopamine content released from a living Drosophila larval neuromuscular neuron is very small. The percentage of released molecules was found to be only 4.5 % for simple events and 10.7 % for complex (i.e., oscillating or flickering) events. This large content, combined with partial release controlled by fluctuations of the fusion pore, offers presynaptic plasticity that can be widely regulated.
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Affiliation(s)
- Anna Larsson
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 412 96, Gothenburg, Sweden
| | - Soodabeh Majdi
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 412 96, Gothenburg, Sweden
| | - Alexander Oleinick
- CNRS, Ecole Normale Superieure-PSL research University, Sorbonne University UMR 8640 "PASTEUR", Departement de Chimie, 24 rue Lhomond, 75005, Paris, France
| | - Irina Svir
- CNRS, Ecole Normale Superieure-PSL research University, Sorbonne University UMR 8640 "PASTEUR", Departement de Chimie, 24 rue Lhomond, 75005, Paris, France
| | - Johan Dunevall
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 412 96, Gothenburg, Sweden
| | - Christian Amatore
- CNRS, Ecole Normale Superieure-PSL research University, Sorbonne University UMR 8640 "PASTEUR", Departement de Chimie, 24 rue Lhomond, 75005, Paris, France
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Andrew G Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 412 96, Gothenburg, Sweden
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45
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Ranjbari E, Majdi S, Ewing A. Analytical Techniques: Shedding Light upon Nanometer-Sized Secretory Vesicles. TRENDS IN CHEMISTRY 2019. [DOI: 10.1016/j.trechm.2019.02.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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46
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Zhang X, Oleinick A, Jiang H, Liao Q, Qiu Q, Svir I, Liu Y, Amatore C, Huang W. Electrochemical Monitoring of ROS/RNS Homeostasis Within Individual Phagolysosomes Inside Single Macrophages. Angew Chem Int Ed Engl 2019; 58:7753-7756. [DOI: 10.1002/anie.201902734] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/24/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Xin‐Wei Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Alexander Oleinick
- PASTEUR, Départment de ChimieÉcole Normale SupérieurePSL, Research UniversitySorbonne UniversitésUPMC Univ. Paris 06 France
- CNRS 24 rue Lhomond 75005 Paris France
| | - Hong Jiang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Quan‐Lan Liao
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Quan‐Fa Qiu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Irina Svir
- PASTEUR, Départment de ChimieÉcole Normale SupérieurePSL, Research UniversitySorbonne UniversitésUPMC Univ. Paris 06 France
- CNRS 24 rue Lhomond 75005 Paris France
| | - Yan‐Ling Liu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Christian Amatore
- PASTEUR, Départment de ChimieÉcole Normale SupérieurePSL, Research UniversitySorbonne UniversitésUPMC Univ. Paris 06 France
- CNRS 24 rue Lhomond 75005 Paris France
- State Key Laboratory of Physical Chemistry of Solid SurfacesCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Wei‐Hua Huang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
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47
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Xiao T, Wang Y, Wei H, Yu P, Jiang Y, Mao L. Electrochemical Monitoring of Propagative Fluctuation of Ascorbate in the Live Rat Brain during Spreading Depolarization. Angew Chem Int Ed Engl 2019; 58:6616-6619. [DOI: 10.1002/anie.201901035] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/20/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Tongfang Xiao
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
| | - Yuexiang Wang
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
| | - Huan Wei
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ping Yu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ying Jiang
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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48
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Zhang X, Oleinick A, Jiang H, Liao Q, Qiu Q, Svir I, Liu Y, Amatore C, Huang W. Electrochemical Monitoring of ROS/RNS Homeostasis Within Individual Phagolysosomes Inside Single Macrophages. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902734] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xin‐Wei Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Alexander Oleinick
- PASTEUR, Départment de ChimieÉcole Normale SupérieurePSL, Research UniversitySorbonne UniversitésUPMC Univ. Paris 06 France
- CNRS 24 rue Lhomond 75005 Paris France
| | - Hong Jiang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Quan‐Lan Liao
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Quan‐Fa Qiu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Irina Svir
- PASTEUR, Départment de ChimieÉcole Normale SupérieurePSL, Research UniversitySorbonne UniversitésUPMC Univ. Paris 06 France
- CNRS 24 rue Lhomond 75005 Paris France
| | - Yan‐Ling Liu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Christian Amatore
- PASTEUR, Départment de ChimieÉcole Normale SupérieurePSL, Research UniversitySorbonne UniversitésUPMC Univ. Paris 06 France
- CNRS 24 rue Lhomond 75005 Paris France
- State Key Laboratory of Physical Chemistry of Solid SurfacesCollege of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Wei‐Hua Huang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)College of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
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Xiao T, Wang Y, Wei H, Yu P, Jiang Y, Mao L. Electrochemical Monitoring of Propagative Fluctuation of Ascorbate in the Live Rat Brain during Spreading Depolarization. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901035] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Tongfang Xiao
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
| | - Yuexiang Wang
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
| | - Huan Wei
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ping Yu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ying Jiang
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of Chemistry, theChinese Academy of Sciences (CAS)CAS Research/Education Center for Excellence in Molecular Science Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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Ren L, Dowlatshahi Pour M, Malmberg P, Ewing AG. Altered Lipid Composition of Secretory Cells Following Exposure to Zinc Can Be Correlated to Changes in Exocytosis. Chemistry 2019; 25:5406-5411. [PMID: 30762272 DOI: 10.1002/chem.201900010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Indexed: 12/20/2022]
Abstract
A micromolar concentration of zinc has been shown to significantly change the dynamics of exocytosis as well as the vesicle contents in a model cell line, providing direct evidence that zinc regulates neurotransmitter release. To provide insight into how zinc modulates these exocytotic processes, neurotransmitter release and vesicle content were compared with single cell amperometry and intracellular impact vesicle cytometry with a range of zinc concentrations. Additionally, time-of-flight secondary ion mass spectrometry (ToF-SIMS) images of lipid distributions in the cell membrane after zinc treatment correlate to changes in exocytosis. By combining electrochemical techniques and mass spectrometry imaging, we proposed a mechanism by which zinc changes the fusion pore and the rate of neurotransmitter release by changing lipid distributions and results in the modulation of synaptic strength and plasticity.
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Affiliation(s)
- Lin Ren
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Masoumeh Dowlatshahi Pour
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
- Chemical Imaging Infrastructure, CII, University of Gothenburg and Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Per Malmberg
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
- Chemical Imaging Infrastructure, CII, University of Gothenburg and Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Andrew G Ewing
- Chemical Imaging Infrastructure, CII, University of Gothenburg and Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
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