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Calle-Ciborro B, Espin-Jaime T, Santos FJ, Gomez-Martin A, Jardin I, Pozo MJ, Rosado JA, Camello PJ, Camello-Almaraz C. Secretion of Interleukin 6 in Human Skeletal Muscle Cultures Depends on Ca 2+ Signalling. BIOLOGY 2023; 12:968. [PMID: 37508398 PMCID: PMC10376320 DOI: 10.3390/biology12070968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 07/03/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023]
Abstract
The systemic effects of physical activity are mediated by the release of IL-6 and other myokines from contracting muscle. Although the release of IL-6 from muscle has been extensively studied, the information on the cellular mechanisms is fragmentary and scarce, especially regarding the role of Ca2+ signals. The aim of this study was to characterize the role of the main components of Ca2+ signals in human skeletal muscle cells during IL-6 secretion stimulated by the Ca2+ mobilizing agonist ATP. Primary cultures were prepared from surgical samples, fluorescence microscopy was used to evaluate the Ca2+ signals and the stimulated release of IL-6 into the medium was determined using ELISA. Intracellular calcium chelator Bapta, low extracellular calcium and the Ca2+ channels blocker La3+ reduced the ATP-stimulated, but not the basal secretion. Secretion was inhibited by blockers of L-type (nifedipine, verapamil), T-type (NNC55-0396) and Orai1 (Synta66) Ca2+ channels and by silencing Orai1 expression. The same effect was achieved with inhibitors of ryanodine receptors (ryanodine, dantrolene) and IP3 receptors (xestospongin C, 2-APB, caffeine). Inhibitors of calmodulin (calmidazolium) and calcineurin (FK506) also decreased secretion. IL-6 transcription in response to ATP was not affected by Bapta or by the T channel blocker. Our results prove that ATP-stimulated IL-6 secretion is mediated at the post-transcriptional level by Ca2+ signals, including the mobilization of calcium stores, the activation of store-operated Ca2+ entry, and the subsequent activation of voltage-operated Ca2+ channels and calmodulin/calcineurin pathways.
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Affiliation(s)
- Blanca Calle-Ciborro
- Department of Physiology, Instituto de Biomarcadores Patológicos Moleculares y Metabólicos, Universidad de Extremadura, 10003 Cáceres, Spain
| | - Teresa Espin-Jaime
- Faculty of Medicine, Hospital Universitario, Universidad de Extremadura, 06006 Badajoz, Spain
| | | | - Ana Gomez-Martin
- Department of Nursing, Faculty of Nursing and Occupational Therapy, Universidad de Extremadura, 10003 Cáceres, Spain
| | - Isaac Jardin
- Department of Physiology, Instituto de Biomarcadores Patológicos Moleculares y Metabólicos, Universidad de Extremadura, 10003 Cáceres, Spain
| | - Maria J Pozo
- Department of Physiology, Instituto de Biomarcadores Patológicos Moleculares y Metabólicos, Universidad de Extremadura, 10003 Cáceres, Spain
| | - Juan A Rosado
- Department of Physiology, Instituto de Biomarcadores Patológicos Moleculares y Metabólicos, Universidad de Extremadura, 10003 Cáceres, Spain
| | - Pedro J Camello
- Department of Physiology, Instituto de Biomarcadores Patológicos Moleculares y Metabólicos, Universidad de Extremadura, 10003 Cáceres, Spain
| | - Cristina Camello-Almaraz
- Department of Physiology, Instituto de Biomarcadores Patológicos Moleculares y Metabólicos, Universidad de Extremadura, 10003 Cáceres, Spain
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Lillo A, Martínez-Pinilla E, Reyes-Resina I, Navarro G, Franco R. Adenosine A 2A and A 3 Receptors Are Able to Interact with Each Other. A Further Piece in the Puzzle of Adenosine Receptor-Mediated Signaling. Int J Mol Sci 2020; 21:ijms21145070. [PMID: 32709103 PMCID: PMC7404137 DOI: 10.3390/ijms21145070] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 01/22/2023] Open
Abstract
The aim of this paper was to check the possible interaction of two of the four purinergic P1 receptors, the A2A and the A3. Discovery of the A2A-A3 receptor complex was achieved by means of immunocytochemistry and of bioluminescence resonance energy transfer. The functional properties and heteromer print identification were addressed by combining binding and signaling assays. The physiological role of the novel heteromer is to provide a differential signaling depending on the pre-coupling to signal transduction components and/or on the concentration of the endogenous agonist. The main feature was that the heteromeric context led to a marked decrease of the signaling originating at A3 receptors. Interestingly from a therapeutic point of view, A2A receptor antagonists overrode the blockade, thus allowing A3 receptor-mediated signaling. The A2A-A3 receptor heteromer print was detected in primary cortical neurons. These and previous results suggest that all four adenosine receptors may interact with each other. Therefore, each adenosine receptor could form heteromers with distinct properties, expanding the signaling outputs derived from the binding of adenosine to its cognate receptors.
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Affiliation(s)
- Alejandro Lillo
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain; (A.L.); (I.R.-R.); (G.N.)
| | - Eva Martínez-Pinilla
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Asturias, Spain;
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33006 Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33006 Asturias, Spain
| | - Irene Reyes-Resina
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain; (A.L.); (I.R.-R.); (G.N.)
| | - Gemma Navarro
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain; (A.L.); (I.R.-R.); (G.N.)
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
| | - Rafael Franco
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
- Molecular Neurobiology Laboratory, Department of Biochemistry and Molecular Biomedicine, University of Barcelona, 08028 Barcelona, Spain
- School of Chemistry, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
- Correspondence: or ; Tel.: +34-934021208
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Bernareggi A, Sciancalepore M, Lorenzon P. Interplay Between Cholinergic and Adenosinergic Systems in Skeletal Muscle. Neuroscience 2019; 439:41-47. [PMID: 31121259 DOI: 10.1016/j.neuroscience.2019.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/06/2019] [Accepted: 05/07/2019] [Indexed: 02/06/2023]
Abstract
Since the pioneering works of Ricardo Miledi, the neuromuscular junction represents the best example of a synapse where ACh is the neurotransmitter acting on nicotinic ACh receptors. ATP, co-released with ACh, is promptly degraded to Ado, which acts as a modulator of the cholinergic synaptic activity. Consequently, both ACh and adenosine play a crucial role in controlling the nerve-muscle communication. Apart from their role in the context of synaptic transmission, ACh and adenosine are autocrinally released by skeletal muscle cells, suggesting also a non nerve-driven function of these molecules. Indeed, the existence of cholinergic and adenosinergic systems has been widely described in many other non neuronal cell types. In this review, we will describe the two systems and their interplay in non-innervated differentiating skeletal muscle cells, and in innervated adult skeletal muscle fibers. We believe that the better comprehension of the interactions between the activity of nAChRs and adenosine could help the knowledge of skeletal muscle physiology. This article is part of a Special Issue entitled: Honoring Ricardo Miledi - outstanding neuroscientist of XX-XXI centuries.
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Affiliation(s)
- Annalisa Bernareggi
- Department of Life Sciences, University of Trieste, Trieste, Italy; B.R.A.I.N., Centre for Neuroscience, Trieste, Italy.
| | - Marina Sciancalepore
- Department of Life Sciences, University of Trieste, Trieste, Italy; B.R.A.I.N., Centre for Neuroscience, Trieste, Italy
| | - Paola Lorenzon
- Department of Life Sciences, University of Trieste, Trieste, Italy; B.R.A.I.N., Centre for Neuroscience, Trieste, Italy
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Bernareggi A, Ren E, Giniatullin A, Luin E, Sciancalepore M, Giniatullin R, Lorenzon P. Adenosine Promotes Endplate nAChR Channel Activity in Adult Mouse Skeletal Muscle Fibers via Low Affinity P1 Receptors. Neuroscience 2018; 383:1-11. [PMID: 29733889 DOI: 10.1016/j.neuroscience.2018.04.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 04/12/2018] [Accepted: 04/28/2018] [Indexed: 11/26/2022]
Abstract
Adenosine is a powerful modulator of skeletal neuromuscular transmission, operating via inhibitory or facilitatory purinergic-type P1 receptors. To date, studies have been focused mainly on the effect of adenosine on presynaptic P1 receptors controlling transmitter release. In this study, using two-microelectrode voltage-clamp and single-channel patch-clamp recording techniques, we have explored potential postsynaptic targets of adenosine and their modulatory effect on nicotinic acetylcholine receptor (nAChR)-mediated synaptic responses in adult mouse skeletal muscle fibers in vitro. In the whole-mount neuromuscular junction (NMJ) preparation, adenosine (100 μM) significantly reduced the frequency of the miniature endplate currents (MEPCs) and slowed their rising and decay time. Consistent with a postsynaptic site of action, adenosine and the potent P1 receptor agonist NECA significantly increased the open probability, the frequency and the open time of single nAChR channels, recorded at the endplate region. Using specific ligands for the P1 receptor subtypes, we found that the low-affinity P1 receptor subtype A2B was responsible for mediating the effects of adenosine on the nAChR channel openings. Our data suggest that at the adult mammalian NMJ, adenosine acts not only presynaptically to modulate acetylcholine transmitter release, but also at the postsynaptic level, to enhance the activity of nAChRs. Our findings open a new scenario in understanding of purinergic regulation of nAChR activity at the mammalian endplate region.
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Affiliation(s)
- Annalisa Bernareggi
- Department of Life Sciences, University of Trieste, Trieste, Italy; B.R.A.I.N., Centre for Neuroscience, Trieste, Italy.
| | - Elisa Ren
- Department of Life Sciences, University of Trieste, Trieste, Italy; B.R.A.I.N., Centre for Neuroscience, Trieste, Italy
| | | | - Elisa Luin
- Department of Life Sciences, University of Trieste, Trieste, Italy; B.R.A.I.N., Centre for Neuroscience, Trieste, Italy
| | - Marina Sciancalepore
- Department of Life Sciences, University of Trieste, Trieste, Italy; B.R.A.I.N., Centre for Neuroscience, Trieste, Italy
| | - Rashid Giniatullin
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia; A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Paola Lorenzon
- Department of Life Sciences, University of Trieste, Trieste, Italy; B.R.A.I.N., Centre for Neuroscience, Trieste, Italy
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Matta C, Fodor J, Csernoch L, Zákány R. Purinergic signalling-evoked intracellular Ca(2+) concentration changes in the regulation of chondrogenesis and skeletal muscle formation. Cell Calcium 2016; 59:108-16. [PMID: 26925979 DOI: 10.1016/j.ceca.2016.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/16/2015] [Accepted: 01/23/2016] [Indexed: 01/28/2023]
Abstract
It is now widely recognised that changes of the intracellular calcium concentration have deep impact on the differentiation of various non-excitable cells including the elements of the vertebrate skeleton. It has become evident that purinergic signalling is one of the most ancient cellular mechanisms that can cause such alterations in the intracellular Ca(2+)-homeostasis, which are precisely set either spatially or temporally. Purinergic signalling is believed to regulate intracellular Ca(2+)-concentration of developing cartilage and skeletal muscle cells and suggested to play roles in the modulation of various cellular functions. This idea is supported by the fact that pluripotent mesenchymal cells, chondroprogenitors or muscle precursors, as well as mature chondrocytes all are capable of releasing ectonucleotides, and express various types of purinoreceptors and ectonucleotidases. The presence of the basic components of purinergic signalling proves that cells of the chondrogenic lineage can utilise this mechanism for modulating their intracellular Ca(2+) concentration independently from the surrounding skeletal muscle and bone tissues, which are well known to release ectopurines during development and mechanical stress. In this review, we summarize accumulating experimental evidence supporting the importance of purinergic signalling in the regulation of chondrogenesis and during skeletal muscle formation.
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Affiliation(s)
- Csaba Matta
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary; Department of Veterinary Pre-Clinical Sciences, School of Veterinary Medicine and Science, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7AL, United Kingdom
| | - János Fodor
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary
| | - László Csernoch
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary
| | - Róza Zákány
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary.
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Fulle S. Purinergic signalling during myogenesis: a role for adenosine and its receptors. Acta Physiol (Oxf) 2015; 214:436-9. [PMID: 26082066 DOI: 10.1111/apha.12542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- S. Fulle
- Department of Neuroscience Imaging and Clinical Sciences; Section of Physiology and Physiopathology; Interuniversity Institute of Myology; University “G.d'Annunzio” of Chieti-Pescara; Chieti Italy
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