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Dannaoui R, Hu R, Hu L, Tian ZQ, Svir I, Huang WH, Amatore C, Oleinick A. Vesicular neurotransmitters exocytosis monitored by amperometry: theoretical quantitative links between experimental current spikes shapes and intravesicular structures. Chem Sci 2024:d4sc04003a. [PMID: 39129778 PMCID: PMC11310864 DOI: 10.1039/d4sc04003a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Accepted: 07/30/2024] [Indexed: 08/13/2024] Open
Abstract
Single cell amperometry has proven to be a powerful and well-established method for characterizing single vesicular exocytotic events elicited at the level of excitable cells under various experimental conditions. Nevertheless, most of the reported characteristics are descriptive, being mostly concerned with the morphological characteristics of the recorded current spikes (maximum current intensities, released charge, rise and fall times, etc.) which are certainly important but do not provide sufficient kinetic information on exocytotic mechanisms due to lack of quantitative models. Here, continuing our previous efforts to provide rigorous models rationalizing the kinetic structures of frequently encountered spike types (spikes with unique exponential decay tails and kiss-and-run events), we describe a new theoretical approach enabling a quantitative kinetic modeling of all types of exocytotic events giving rise to current spikes exhibiting exponential decay tails. This model follows directly from the fact that the condensation of long intravesicular polyelectrolytic strands by high concentrations of monocationic neurotransmitter molecules leads to a matrix structure involving two compartments in constant kinetic exchanges during release. This kinetic model has been validated theoretically (direct and inverse problems) and its experimental interest established by the analysis of the amperometric spikes relative to chromaffin and PC12 cells previously published by some of us.
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Affiliation(s)
- Reina Dannaoui
- Département de Chimie, PASTEUR, Ecole Normale Supérieure, PSL Université, Sorbonne Université, CNRS 24 rue Lhomond Paris 75005 France
| | - Ren Hu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 P.R. China
| | - Lihui Hu
- Département de Chimie, PASTEUR, Ecole Normale Supérieure, PSL Université, Sorbonne Université, CNRS 24 rue Lhomond Paris 75005 France
| | - Zhong-Qun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 P.R. China
| | - Irina Svir
- Département de Chimie, PASTEUR, Ecole Normale Supérieure, PSL Université, Sorbonne Université, CNRS 24 rue Lhomond Paris 75005 France
| | - Wei-Hua Huang
- College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 P.R. China
| | - Christian Amatore
- Département de Chimie, PASTEUR, Ecole Normale Supérieure, PSL Université, Sorbonne Université, CNRS 24 rue Lhomond Paris 75005 France
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 P.R. China
| | - Alexander Oleinick
- Département de Chimie, PASTEUR, Ecole Normale Supérieure, PSL Université, Sorbonne Université, CNRS 24 rue Lhomond Paris 75005 France
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Pertile RAN, Brigden R, Raman V, Cui X, Du Z, Eyles D. Vitamin D: A potent regulator of dopaminergic neuron differentiation and function. J Neurochem 2023; 166:779-789. [PMID: 37084159 DOI: 10.1111/jnc.15829] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 03/23/2023] [Accepted: 04/03/2023] [Indexed: 04/22/2023]
Abstract
Vitamin D has been identified as a key factor in dopaminergic neurogenesis and differentiation. Consequently, developmental vitamin D (DVD) deficiency has been linked to disorders of abnormal dopamine signalling with a neurodevelopmental basis such as schizophrenia. Here we provide further evidence of vitamin D's role as a mediator of dopaminergic development by showing that it increases neurite outgrowth, neurite branching, presynaptic protein re-distribution, dopamine production and functional release in various in vitro models of developing dopaminergic cells including SH-SY5Y cells, primary mesencephalic cultures and mesencephalic/striatal explant co-cultures. This study continues to establish vitamin D as an important differentiation agent for developing dopamine neurons, and now for the first time shows chronic exposure to the active vitamin D hormone increases the capacity of developing neurons to release dopamine. This study also has implications for understanding mechanisms behind the link between DVD deficiency and schizophrenia.
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Affiliation(s)
| | - Rachel Brigden
- Queensland Brain Institute, University of Queensland, Saint Lucia, Queensland, Australia
| | - Vanshika Raman
- Queensland Brain Institute, University of Queensland, Saint Lucia, Queensland, Australia
| | - Xiaoying Cui
- Queensland Brain Institute, University of Queensland, Saint Lucia, Queensland, Australia
- Queensland Centre for Mental Health Research, Wacol, Queensland, Australia
| | - Zilong Du
- Queensland Brain Institute, University of Queensland, Saint Lucia, Queensland, Australia
| | - Darryl Eyles
- Queensland Brain Institute, University of Queensland, Saint Lucia, Queensland, Australia
- Queensland Centre for Mental Health Research, Wacol, Queensland, Australia
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Guilbault S, Garrigue P, Garnier L, Pandard J, Lemaître F, Guille-Collignon M, Sojic N, Arbault S. Design of optoelectrodes for the remote imaging of cells and in situ electrochemical detection of neurosecretory events. Bioelectrochemistry 2022; 148:108262. [PMID: 36130462 DOI: 10.1016/j.bioelechem.2022.108262] [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: 06/17/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/30/2022]
Abstract
Optical fibers have opened avenues for remote imaging, bioanalyses and recently optogenetics. Besides, miniaturized electrochemical sensors have offered new opportunities in sensing directly redox neurotransmitters. The combination of both optical and electrochemical approaches was usually performed on the platform of microscopes or within microsystems. In this work, we developed optoelectrodes which features merge the advantages of both optical fibers and microelectrodes. Optical fiber bundles were modified at one of their extremity by a transparent ITO deposit. The electrochemical responses of these ITO-modified bundles were characterized for the detection of dopamine, epinephrine and norepinephrine. The analytical performances of the optoelectrodes were equivalent to the ones reported for carbon microelectrodes. The remote imaging of model neurosecretory PC12 cells by optoelectrodes was performed upon cell-staining with common fluorescent dyes: acridine orange and calcein-AM. An optoelectrode placed by micromanipulation at a few micrometers-distance from the cells offered remote images with single cell resolution. Finally, in situ electrochemical sensing was demonstrated by additions of K+-secretagogue solutions near PC12 cells under observation, leading to exocytotic events detected as amperometric spikes at the ITO surface. Such dual sensors should pave the way for in vivo remote imaging, optogenetic stimulation, and simultaneous detection of neurosecretory activities.
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Affiliation(s)
- Samuel Guilbault
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Patrick Garrigue
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Léo Garnier
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Justine Pandard
- PASTEUR, Département de Chimie, Ecole Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Frédéric Lemaître
- PASTEUR, Département de Chimie, Ecole Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Manon Guille-Collignon
- PASTEUR, Département de Chimie, Ecole Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Neso Sojic
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France.
| | - Stéphane Arbault
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France; Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, F-33600 Pessac, France.
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PC-12 Cell Line as a Neuronal Cell Model for Biosensing Applications. BIOSENSORS 2022; 12:bios12070500. [PMID: 35884303 PMCID: PMC9313070 DOI: 10.3390/bios12070500] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/04/2022] [Accepted: 07/07/2022] [Indexed: 12/02/2022]
Abstract
PC-12 cells have been widely used as a neuronal line study model in many biosensing devices, mainly due to the neurogenic characteristics acquired after differentiation, such as high level of secreted neurotransmitter, neuron morphology characterized by neurite outgrowth, and expression of ion and neurotransmitter receptors. For understanding the pathophysiology processes involved in brain disorders, PC-12 cell line is extensively assessed in neuroscience research, including studies on neurotoxicity, neuroprotection, or neurosecretion. Various analytical technologies have been developed to investigate physicochemical processes and the biosensors based on optical and electrochemical techniques, among others, have been at the forefront of this development. This article summarizes the application of different biosensors in PC-12 cell cultures and presents the modern approaches employed in neuronal networks biosensing.
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Pandard J, Pan N, Ait-Yahiatène E, Grimaud L, Lemaître F, Guille-Collignon M. From FFN dual probe screening to ITO microdevice for exocytosis monitoring: electrochemical and fluorescence requirements. ChemElectroChem 2022. [DOI: 10.1002/celc.202200321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Na Pan
- PSL: Universite PSL Chemistry FRANCE
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Cagle BS, Sturgeon ML, O'Brien JB, Wilkinson JC, Cornell RA, Roman DL, Doorn JA. Stable expression of the human dopamine transporter in N27 cells as an in vitro model for dopamine cell trafficking and metabolism. Toxicol In Vitro 2021; 76:105210. [PMID: 34252731 PMCID: PMC8419135 DOI: 10.1016/j.tiv.2021.105210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/23/2021] [Accepted: 07/01/2021] [Indexed: 11/18/2022]
Abstract
Dopamine (DA) metabolism and cell trafficking are critical for the proper functioning of DA neurons. Disruption of these DA processes can yield toxic products and is implicated in neurological conditions including Parkinson's disease (PD). To investigate pathogenic mechanisms involving DA neurons, in vitro models that recapitulate DA metabolism and trafficking in vivo are crucial. N27 cells are a widely used model for PD; however, these cells exhibit little expression of the DA transporter (DAT) confounding studies of DA uptake and metabolism. This lack of adequate DAT expression calls into question the use of this cell line as a model to study DA cell trafficking and metabolism. To overcome this problem, we stably expressed the human DAT (hDAT) in N27 cells to develop cells that we named N27-BCD. This approach allows for characterization of toxicants that may alter DA metabolism, trafficking, and/or interactions with DAT. N27-BCD cells are more sensitive to the neurotoxins 1-methyl-4-phenylpyridinium (MPTP/MPP+) and 6-hydroxydopamine (6-OHDA). N27-BCD cells allowed for clear observation of DA metabolism, whereas N27 cells did not. Here, we propose that stable expression of hDAT in N27 cells yields a useful model of DA neurons to study the impact of altered DA cell trafficking and metabolism.
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Affiliation(s)
- B S Cagle
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, 180 S Grand Ave. Iowa City, Iowa 52242, USA.
| | - M L Sturgeon
- The Interdisciplinary Graduate Program in Molecular Medicine, Carver College of Medicine, University of Iowa, 451 Newton Road, Iowa City, Iowa 52242, USA.
| | - J B O'Brien
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, 180 S Grand Ave. Iowa City, Iowa 52242, USA.
| | - J C Wilkinson
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, 180 S Grand Ave. Iowa City, Iowa 52242, USA.
| | - R A Cornell
- Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, 51 Newton Road Iowa City, Iowa 52242, USA.
| | - D L Roman
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, 180 S Grand Ave. Iowa City, Iowa 52242, USA.
| | - J A Doorn
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, 180 S Grand Ave. Iowa City, Iowa 52242, USA.
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Guille-Collignon M, Lemaître F. Overview and outlook of the strategies devoted to electrofluorescence surveys: Application to single cell secretion analysis. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Pandard J, Pan N, Ebene DH, Le Saux T, Ait-Yahiatène E, Liu X, Grimaud L, Buriez O, Labbé E, Lemaître F, Guille-Collignon M. A Fluorescent False Neurotransmitter as a Dual Electrofluorescent Probe for Secretory Cell Models. Chempluschem 2020; 84:1578-1586. [PMID: 31943921 DOI: 10.1002/cplu.201900385] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 09/06/2019] [Indexed: 01/08/2023]
Abstract
A dual electrofluorescent probe (FFN42) belonging to the fluorescent false neurotransmitter family was rationally designed for investigating cell secretion. This probe, which comprises a coumarin core with one amino and two hydroxy groups, is very promising due to its electroactive and fluorescent properties. The optimal excitation and emission wavelengths (380 nm and 470 nm respectively) make this probe adapted for use in fluorescence microscopy. FFN42 has a quantum yield of 0.18, a molar absorption coefficient of 12000 M-1 cm-1 and pKa values of 5.4 and 6.7 for the hydroxy groups. The electroactivity of FFN42 was evidenced on carbon fiber and ITO electrodes at relatively low oxidation potentials (0.24 V and 0.45 V vs Ag/AgCl respectively). Epifluorescence observations showed that FFN42 accumulated into secretory vesicles of PC12 and N13 cells. Toxicity tests further revealed that FFN42 had no lethal effect on these cells. Amperometric data obtained on carbon fiber electrodes proved that the probe is released by N13 cells.
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Affiliation(s)
- Justine Pandard
- Laboratoire PASTEUR, Département de Chimie Ecole Normale Supérieure, PSL University Sorbonne Université, CNRS, 75005, Paris, France
| | - Na Pan
- Laboratoire de biomolécules (LBM) Département de Chimie, Sorbonne Université École Normale Supérieure PSL University Sorbonne Université, CNRS, 75005, Paris, France
| | - Dina H Ebene
- Laboratoire PASTEUR, Département de Chimie Ecole Normale Supérieure, PSL University Sorbonne Université, CNRS, 75005, Paris, France
| | - Thomas Le Saux
- Laboratoire PASTEUR, Département de Chimie Ecole Normale Supérieure, PSL University Sorbonne Université, CNRS, 75005, Paris, France
| | - Eric Ait-Yahiatène
- Laboratoire PASTEUR, Département de Chimie Ecole Normale Supérieure, PSL University Sorbonne Université, CNRS, 75005, Paris, France
| | - Xiaoqing Liu
- Laboratoire PASTEUR, Département de Chimie Ecole Normale Supérieure, PSL University Sorbonne Université, CNRS, 75005, Paris, France
| | - Laurence Grimaud
- Laboratoire de biomolécules (LBM) Département de Chimie, Sorbonne Université École Normale Supérieure PSL University Sorbonne Université, CNRS, 75005, Paris, France
| | - Olivier Buriez
- Laboratoire PASTEUR, Département de Chimie Ecole Normale Supérieure, PSL University Sorbonne Université, CNRS, 75005, Paris, France
| | - Eric Labbé
- Laboratoire PASTEUR, Département de Chimie Ecole Normale Supérieure, PSL University Sorbonne Université, CNRS, 75005, Paris, France
| | - Frédéric Lemaître
- Laboratoire PASTEUR, Département de Chimie Ecole Normale Supérieure, PSL University Sorbonne Université, CNRS, 75005, Paris, France
| | - Manon Guille-Collignon
- Laboratoire PASTEUR, Département de Chimie Ecole Normale Supérieure, PSL University Sorbonne Université, CNRS, 75005, Paris, France
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