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Seidita I, Tusa I, Prisinzano M, Menconi A, Cencetti F, Vannuccini S, Castiglione F, Bruni P, Petraglia F, Bernacchioni C, Rovida E, Donati C. Sphingosine 1-phosphate elicits a ROS-mediated proinflammatory response in human endometrial stromal cells via ERK5 activation. FASEB J 2023; 37:e23061. [PMID: 37389926 DOI: 10.1096/fj.202300323r] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 07/01/2023]
Abstract
Endometriosis is a chronic gynecological disease affecting ~10% women in the reproductive age characterized by the growth of endometrial glands and stroma outside the uterine cavity. The inflammatory process has a key role in the initiation and progression of the disorder. Currently, there are no available early diagnostic tests and therapy relies exclusively on symptomatic drugs, so that elucidation of the complex molecular mechanisms involved in the pathogenesis of endometriosis is an unmet need. The signaling of the bioactive sphingolipid sphingosine 1-phosphate (S1P) is deeply dysregulated in endometriosis. S1P modulates a variety of fundamental cellular processes, including inflammation, neo-angiogenesis, and immune responses acting mainly as ligand of a family of G-protein-coupled receptors named S1P receptors (S1PR), S1P1-5 . Here, we demonstrated that the mitogen-activated protein kinase ERK5, that is expressed in endometriotic lesions as determined by quantitative PCR, is activated by S1P in human endometrial stromal cells. S1P-induced ERK5 activation was shown to be triggered by S1P1/3 receptors via a SFK/MEK5-dependent axis. S1P-induced ERK5 activation was, in turn, responsible for the increase of reactive oxygen species and proinflammatory cytokine expression in human endometrial stromal cells. The present findings indicate that the S1P signaling, via ERK5 activation, supports a proinflammatory response in the endometrium and establish the rationale for the exploitation of innovative therapeutic targets for endometriosis.
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Affiliation(s)
- Isabelle Seidita
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Ignazia Tusa
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Matteo Prisinzano
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Alessio Menconi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Francesca Cencetti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Silvia Vannuccini
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Francesca Castiglione
- Histopathology and Molecular Diagnostics, Careggi University Hospital, Florence, Italy
| | - Paola Bruni
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Felice Petraglia
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Caterina Bernacchioni
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Elisabetta Rovida
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Chiara Donati
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
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2
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Bigi A, Cascella R, Fani G, Bernacchioni C, Cencetti F, Bruni P, Chiti F, Donati C, Cecchi C. Sphingosine 1-phosphate attenuates neuronal dysfunction induced by amyloid-β oligomers through endocytic internalization of NMDA receptors. FEBS J 2023; 290:112-133. [PMID: 35851748 PMCID: PMC10087929 DOI: 10.1111/febs.16579] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 05/24/2022] [Accepted: 07/18/2022] [Indexed: 01/14/2023]
Abstract
Soluble oligomers arising from the aggregation of the amyloid beta peptide (Aβ) have been identified as the main pathogenic agents in Alzheimer's disease (AD). Prefibrillar oligomers of the 42-residue form of Aβ (Aβ42 O) show membrane-binding capacity and trigger the disruption of Ca2+ homeostasis, a causative event in neuron degeneration. Since bioactive lipids have been recently proposed as potent protective agents against Aβ toxicity, we investigated the involvement of sphingosine 1-phosphate (S1P) signalling pathway in Ca2+ homeostasis in living neurons exposed to Aβ42 O. We show that both exogenous and endogenous S1P rescued neuronal Ca2+ dyshomeostasis induced by toxic Aβ42 O in primary rat cortical neurons and human neuroblastoma SH-SY5Y cells. Further analysis revealed a strong neuroprotective effect of S1P1 and S1P4 receptors, and to a lower extent of S1P3 and S1P5 receptors, which activate the Gi -dependent signalling pathways, thus resulting in the endocytic internalization of the extrasynaptic GluN2B-containing N-methyl-D-aspartate receptors (NMDARs). Notably, the S1P beneficial effect can be sustained over time by sphingosine kinase-1 overexpression, thus counteracting the down-regulation of the S1P signalling induced by Aβ42 O. Our findings disclose underlying mechanisms of S1P neuronal protection against harmful Aβ42 O, suggesting that S1P and its signalling axis can be considered promising targets for therapeutic approaches for AD.
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Affiliation(s)
- Alessandra Bigi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Italy
| | - Roberta Cascella
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Italy
| | - Giulia Fani
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Italy
| | - Caterina Bernacchioni
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Italy
| | - Francesca Cencetti
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Italy
| | - Paola Bruni
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Italy
| | - Fabrizio Chiti
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Italy
| | - Chiara Donati
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Italy
| | - Cristina Cecchi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Italy
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Bernacchioni C, Squecco R, Gamberi T, Ghini V, Schumacher F, Mannelli M, Garella R, Idrizaj E, Cencetti F, Puliti E, Bruni P, Turano P, Fiaschi T, Donati C. S1P Signalling Axis Is Necessary for Adiponectin-Directed Regulation of Electrophysiological Properties and Oxidative Metabolism in C2C12 Myotubes. Cells 2022; 11:cells11040713. [PMID: 35203362 PMCID: PMC8869893 DOI: 10.3390/cells11040713] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/12/2022] [Accepted: 02/14/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Adiponectin (Adn), released by adipocytes and other cell types such as skeletal muscle, has insulin-sensitizing and anti-inflammatory properties. Sphingosine 1-phosphate (S1P) is reported to act as effector of diverse biological actions of Adn in different tissues. S1P is a bioactive sphingolipid synthesized by the phosphorylation of sphingosine catalyzed by sphingosine kinase (SK) 1 and 2. Consolidated findings support the key role of S1P in the biology of skeletal muscle. Methods and Results: Here we provide experimental evidence that S1P signalling is modulated by globular Adn treatment being able to increase the phosphorylation of SK1/2 as well as the mRNA expression levels of S1P4 in C2C12 myotubes. These findings were confirmed by LC-MS/MS that showed an increase of S1P levels after Adn treatment. Notably, the involvement of S1P axis in Adn action was highlighted since, when SK1 and 2 were inhibited by PF543 and ABC294640 inhibitors, respectively, not only the electrophysiological changes but also the increase of oxygen consumption and of aminoacid levels induced by the hormone, were significantly inhibited. Conclusion: Altogether, these findings show that S1P biosynthesis is necessary for the electrophysiological properties and oxidative metabolism of Adn in skeletal muscle cells.
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Affiliation(s)
- Caterina Bernacchioni
- Department of Experimental and Clinical Biomedical Sciences “M. Serio”, University of Florence, 50134 Florence, Italy; (C.B.); (T.G.); (M.M.); (F.C.); (E.P.); (P.B.); (T.F.)
| | - Roberta Squecco
- Section of Physiological Sciences, Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (R.S.); (R.G.); (E.I.)
| | - Tania Gamberi
- Department of Experimental and Clinical Biomedical Sciences “M. Serio”, University of Florence, 50134 Florence, Italy; (C.B.); (T.G.); (M.M.); (F.C.); (E.P.); (P.B.); (T.F.)
| | - Veronica Ghini
- Magnetic Resonance Center (CERM), University of Florence, 50019 Florence, Italy; (V.G.); (P.T.)
| | - Fabian Schumacher
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany;
| | - Michele Mannelli
- Department of Experimental and Clinical Biomedical Sciences “M. Serio”, University of Florence, 50134 Florence, Italy; (C.B.); (T.G.); (M.M.); (F.C.); (E.P.); (P.B.); (T.F.)
| | - Rachele Garella
- Section of Physiological Sciences, Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (R.S.); (R.G.); (E.I.)
| | - Eglantina Idrizaj
- Section of Physiological Sciences, Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (R.S.); (R.G.); (E.I.)
| | - Francesca Cencetti
- Department of Experimental and Clinical Biomedical Sciences “M. Serio”, University of Florence, 50134 Florence, Italy; (C.B.); (T.G.); (M.M.); (F.C.); (E.P.); (P.B.); (T.F.)
| | - Elisa Puliti
- Department of Experimental and Clinical Biomedical Sciences “M. Serio”, University of Florence, 50134 Florence, Italy; (C.B.); (T.G.); (M.M.); (F.C.); (E.P.); (P.B.); (T.F.)
| | - Paola Bruni
- Department of Experimental and Clinical Biomedical Sciences “M. Serio”, University of Florence, 50134 Florence, Italy; (C.B.); (T.G.); (M.M.); (F.C.); (E.P.); (P.B.); (T.F.)
| | - Paola Turano
- Magnetic Resonance Center (CERM), University of Florence, 50019 Florence, Italy; (V.G.); (P.T.)
| | - Tania Fiaschi
- Department of Experimental and Clinical Biomedical Sciences “M. Serio”, University of Florence, 50134 Florence, Italy; (C.B.); (T.G.); (M.M.); (F.C.); (E.P.); (P.B.); (T.F.)
| | - Chiara Donati
- Department of Experimental and Clinical Biomedical Sciences “M. Serio”, University of Florence, 50134 Florence, Italy; (C.B.); (T.G.); (M.M.); (F.C.); (E.P.); (P.B.); (T.F.)
- Correspondence: ; Tel.: +39-275-1232
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Role of Sphingosine 1-Phosphate Signalling Axis in Muscle Atrophy Induced by TNFα in C2C12 Myotubes. Int J Mol Sci 2021; 22:ijms22031280. [PMID: 33525436 PMCID: PMC7866171 DOI: 10.3390/ijms22031280] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/19/2021] [Accepted: 01/25/2021] [Indexed: 02/07/2023] Open
Abstract
Skeletal muscle atrophy is characterized by a decrease in muscle mass causing reduced agility, increased fatigability and higher risk of bone fractures. Inflammatory cytokines, such as tumor necrosis factor-alpha (TNFα), are strong inducers of skeletal muscle atrophy. The bioactive sphingolipid sphingosine 1-phoshate (S1P) plays an important role in skeletal muscle biology. S1P, generated by the phosphorylation of sphingosine catalyzed by sphingosine kinase (SK1/2), exerts most of its actions through its specific receptors, S1P1-5. Here, we provide experimental evidence that TNFα induces atrophy and autophagy in skeletal muscle C2C12 myotubes, modulating the expression of specific markers and both active and passive membrane electrophysiological properties. NMR-metabolomics provided a clear picture of the deep remodelling of skeletal muscle fibre metabolism induced by TNFα challenge. The cytokine is responsible for the modulation of S1P signalling axis, upregulating mRNA levels of S1P2 and S1P3 and downregulating those of SK2. TNFα increases the phosphorylated form of SK1, readout of its activation. Interestingly, pharmacological inhibition of SK1 and specific antagonism of S1P3 prevented the increase in autophagy markers and the changes in the electrophysiological properties of C2C12 myotubes without affecting metabolic remodelling induced by the cytokine, highlighting the involvement of S1P signalling axis on TNFα-induced atrophy in skeletal muscle.
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Donati C, Cencetti F, Bernacchioni C, Vannuzzi V, Bruni P. Role of sphingosine 1-phosphate signalling in tissue fibrosis. Cell Signal 2020; 78:109861. [PMID: 33253915 DOI: 10.1016/j.cellsig.2020.109861] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 02/06/2023]
Abstract
Fibrosis is characterized by the excessive accumulation of extracellular matrix components, leading to loss of tissue function in affected organs. Although the majority of fibrotic diseases have different origins, they have in common a persistent inflammatory stimulus and lymphocyte-monocyte interactions that determine the production of numerous fibrogenic cytokines. Treatment to contrast fibrosis is urgently needed, since some fibrotic diseases lead to systemic fibrosis and represent a major cause of death. In this article, the role of the bioactive sphingolipid sphingosine 1-phosphate (S1P) and its signalling pathway in the fibrosis of different tissue contexts is extensively reviewed, highlighting that it may represent an innovative and promising pharmacological therapeutic target for treating this devastating multifaceted disease. In multiple tissues S1P influences different aspects of fibrosis modulating the recruitment of inflammatory cells, as well as cell proliferation, migration and transdifferentiation into myofibroblasts, the cell type mainly involved in fibrosis development. Moreover, at the level of fibrotic lesions, S1P metabolism is profoundly influenced by multiple cross-talk with profibrotic mediators, such as transforming growth factor β, thus finely regulating the development of fibrosis. This article is part of a Special Issue entitled "Physiological and pathological roles of bioactive sphingolipids".
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Affiliation(s)
- Chiara Donati
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, viale GB Morgagni 50, 50134 Florence, Italy.
| | - Francesca Cencetti
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, viale GB Morgagni 50, 50134 Florence, Italy
| | - Caterina Bernacchioni
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, viale GB Morgagni 50, 50134 Florence, Italy
| | - Valentina Vannuzzi
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, viale GB Morgagni 50, 50134 Florence, Italy
| | - Paola Bruni
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, viale GB Morgagni 50, 50134 Florence, Italy
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Bernacchioni C, Capezzuoli T, Vannuzzi V, Malentacchi F, Castiglione F, Cencetti F, Ceccaroni M, Donati C, Bruni P, Petraglia F. Sphingosine 1-phosphate receptors are dysregulated in endometriosis: possible implication in transforming growth factor β-induced fibrosis. Fertil Steril 2020; 115:501-511. [PMID: 32907751 DOI: 10.1016/j.fertnstert.2020.08.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 08/06/2020] [Accepted: 08/06/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To study the molecular mechanisms involved in the appearance of the fibrotic trait in endometriosis by investigating whether the signaling pathway of the bioactive sphingolipid sphingosine 1-phosphate (S1P) was altered in endometriotic lesions. DESIGN Case-control laboratory study. SETTING University research institute and university hospital. PATIENT(S) A total of 75 women, with and without endometriosis, were included in the study. INTERVENTIONS(S) Endometrial samples were obtained from women affected (n = 15 endometrioma [OMA]; n = 30 deep infiltrating endometriosis [DIE]) and not (n = 30) by endometriosis by means of laparoscopic surgery, followed by clinical and imaging investigation and checking for the expression of fibrosis markers and genes implicated in S1P metabolism and signaling by means of real-time polymerase chain reaction. MAIN OUTCOME MEASURE(S) The role of the S1P signaling axis in endometriosis-associated fibrosis was studied in vitro, where RNA interference approaches were used to investigate if S1P synthesis by sphingosine kinases (SKs) and specific S1P receptors (S1PRs) are implicated in the profibrotic effect of the cytokine transforming growth factor (TGF) β1. RESULT(S) mRNA expression analysis of S1PR demonstrated a deep dysregulation of S1P signaling in endometriosis, characterized by increased expression of fibrosis markers: S1P1 was transcriptionally more expressed in OMA, and S1P3 and S1P5 mRNA levels were significantly augmented in both OMA and DIE. SK1 and its activating protein calcium- and integrin-binding protein 1 (CIB1) were significantly up-regulated in OMA and DIE. A crucial role for the SK/S1PR axis in the profibrotic effect elicited by TGFβ1 was highlighted in vitro. CONCLUSION(S) The S1P signaling axis may represent a useful biomarker or innovative pharmacologic target for endometriosis.
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Affiliation(s)
- Caterina Bernacchioni
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Tommaso Capezzuoli
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Valentina Vannuzzi
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Francesca Malentacchi
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Francesca Castiglione
- Histopathology and Molecular Diagnostics, Careggi University Hospital, Florence, Italy
| | - Francesca Cencetti
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Marcello Ceccaroni
- Department of Obstetrics and Gynaecology, Gynaecologic Oncology, and Minimally Invasive Pelvic Surgery, International School of Surgical Anatomy, Sacred Heart Hospital, Negrar, Verona, Italy
| | - Chiara Donati
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy.
| | - Paola Bruni
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
| | - Felice Petraglia
- Department of Experimental and Clinical Biomedical Sciences "M. Serio," University of Florence, Florence, Italy
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Cencetti F, Bruno G, Bernacchioni C, Japtok L, Puliti E, Donati C, Bruni P. Sphingosine 1-phosphate lyase blockade elicits myogenic differentiation of murine myoblasts acting via Spns2/S1P2 receptor axis. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158759. [DOI: 10.1016/j.bbalip.2020.158759] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 05/29/2020] [Accepted: 06/14/2020] [Indexed: 12/11/2022]
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8
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Role of Adipose Tissue-Derived Autotaxin, Lysophosphatidate Signaling, and Inflammation in the Progression and Treatment of Breast Cancer. Int J Mol Sci 2020; 21:ijms21165938. [PMID: 32824846 PMCID: PMC7460696 DOI: 10.3390/ijms21165938] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/07/2020] [Accepted: 08/14/2020] [Indexed: 12/15/2022] Open
Abstract
Autotaxin (ATX) is a secreted enzyme that produces lysophosphatidate (LPA), which signals through six G-protein coupled receptors, promoting tumor growth, metastasis, and survival from chemotherapy and radiotherapy. Many cancer cells produce ATX, but breast cancer cells express little ATX. In breast tumors, ATX is produced by tumor-associated stroma. Breast tumors are also surrounded by adipose tissue, which is a major bodily source of ATX. In mice, a high-fat diet increases adipocyte ATX production. ATX production in obesity is also increased because of low-level inflammation in the expanded adipose tissue. This increased ATX secretion and consequent LPA signaling is associated with decreased adiponectin production, which results in adverse metabolic profiles and glucose homeostasis. Increased ATX production by inflamed adipose tissue may explain the obesity-breast cancer association. Breast tumors produce inflammatory mediators that stimulate ATX transcription in tumor-adjacent adipose tissue. This drives a feedforward inflammatory cycle since increased LPA signaling increases production of more inflammatory mediators and cyclooxygenase-2. Inhibiting ATX activity, which has implications in breast cancer adjuvant treatments, attenuates this cycle. Targeting ATX activity and LPA signaling may potentially increase chemotherapy and radiotherapy efficacy, and decrease radiation-induced fibrosis morbidity independently of breast cancer type because most ATX is not derived from breast cancer cells.
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Dexamethasone Attenuates X-Ray-Induced Activation of the Autotaxin-Lysophosphatidate-Inflammatory Cycle in Breast Tissue and Subsequent Breast Fibrosis. Cancers (Basel) 2020; 12:cancers12040999. [PMID: 32325715 PMCID: PMC7226295 DOI: 10.3390/cancers12040999] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 02/06/2023] Open
Abstract
We recently showed that radiation-induced DNA damage in breast adipose tissue increases autotaxin secretion, production of lysophosphatidate (LPA) and expression of LPA1/2 receptors. We also established that dexamethasone decreases autotaxin production and LPA signaling in non-irradiated adipose tissue. In the present study, we showed that dexamethasone attenuated the radiation-induced increases in autotaxin activity and the concentrations of inflammatory mediators in cultured human adipose tissue. We also exposed a breast fat pad in mice to three daily 7.5 Gy fractions of X-rays. Dexamethasone attenuated radiation-induced increases in autotaxin activity in plasma and mammary adipose tissue and LPA1 receptor levels in adipose tissue after 48 h. DEX treatment during five daily fractions of 7.5 Gy attenuated fibrosis by ~70% in the mammary fat pad and underlying lungs at 7 weeks after radiotherapy. This was accompanied by decreases in CXCL2, active TGF-β1, CTGF and Nrf2 at 7 weeks in adipose tissue of dexamethasone-treated mice. Autotaxin was located at the sites of fibrosis in breast tissue and in the underlying lungs. Consequently, our work supports the premise that increased autotaxin production and lysophosphatidate signaling contribute to radiotherapy-induced breast fibrosis and that dexamethasone attenuated the development of fibrosis in part by blocking this process.
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Park J, Lee Y, Kim E, Kim Y, Hong IS. Synthesis and Characterization of an Amino‐oxy‐modified Sphingosine‐1‐Phosphate Derivative that Can Replace Thiolated‐S1P in Competitive ELSIA. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.11994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ji‐Hye Park
- Department of Chemistry, College of Natural ScienceKongju National University Gongju‐si 32588 Republic of Korea
| | - Yeji Lee
- Department of Chemistry, College of Natural ScienceKongju National University Gongju‐si 32588 Republic of Korea
| | - Eunjin Kim
- Department of diagnosticsResearch Institute of Sejong Medical. Co. Ltd. Paju‐si 10880 Republic of Korea
| | - Yong‐Tae Kim
- Department of Chemistry, College of Natural ScienceKongju National University Gongju‐si 32588 Republic of Korea
- Department of diagnosticsResearch Institute of Sejong Medical. Co. Ltd. Paju‐si 10880 Republic of Korea
| | - In Seok Hong
- Department of Chemistry, College of Natural ScienceKongju National University Gongju‐si 32588 Republic of Korea
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11
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Li Y, Li Y, Jing X, Liu Y, Liu B, She Q. Sphingosine 1-phosphate induces epicardial progenitor cell differentiation into smooth muscle-like cells. Acta Biochim Biophys Sin (Shanghai) 2019; 51:402-410. [PMID: 30877755 DOI: 10.1093/abbs/gmz017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 01/29/2019] [Accepted: 02/01/2019] [Indexed: 11/13/2022] Open
Abstract
Epicardial progenitor cells (EpiCs) which are derived from the proepicardium have the potential to differentiate into coronary vascular smooth muscle cells during development. Whether sphingosine 1-phosphate (S1P), a highly hydrophobic zwitterionic lysophospholipid in signal transduction, induces the differentiation of EpiCs is unknown. In the present study, we demonstrated that S1P significantly induced the expression of smooth muscle cell specific markers α-smooth muscle actin and myosin heavy chain 11 in the EpiCs. And the smooth muscle cells differentiated from the EpiCs stimulated by S1P were further evaluated by gel contraction assay. To further confirm the major subtype of sphingosine 1-phosphate receptors (S1PRs) involved in the differentiation of EpiCs, we used the agonists and antagonists of different S1PRs. The results showed that the S1P1/S1P3 antagonist VPC23019 and the S1P2 antagonist JTE013 significantly attenuated EpiCs differentiation, while the S1P1 agonist SEW2871 and antagonist W146 did not affect EpiCs differentiation. These results collectively suggested that S1P, principally through its receptor S1P3, increases EpiCs differentiation into VSMCs and thus indicated the importance of S1P signaling in the embryonic coronary vasculature, while S1P2 plays a secondary role.
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Affiliation(s)
- Yu Li
- Department of Cardiology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yingrui Li
- Department of Cardiology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xiaodong Jing
- Department of Cardiology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yajie Liu
- Department of Cardiology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Bin Liu
- Department of Cardiology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Qiang She
- Department of Cardiology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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12
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Bruno G, Cencetti F, Bernacchioni C, Donati C, Blankenbach KV, Thomas D, Meyer Zu Heringdorf D, Bruni P. Bradykinin mediates myogenic differentiation in murine myoblasts through the involvement of SK1/Spns2/S1P 2 axis. Cell Signal 2018; 45:110-121. [PMID: 29408301 DOI: 10.1016/j.cellsig.2018.02.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/26/2018] [Accepted: 02/01/2018] [Indexed: 12/16/2022]
Abstract
Skeletal muscle tissue retains a remarkable regenerative capacity due to the activation of resident stem cells that in pathological conditions or after tissue damage proliferate and commit themselves into myoblasts. These immature myogenic cells undergo differentiation to generate new myofibers or repair the injured ones, giving a strong contribution to muscle regeneration. Cytokines and growth factors, potently released after tissue injury by leukocytes and macrophages, are not only responsible of the induction of the initial inflammatory response, but can also affect skeletal muscle regeneration. Growth factors exploit sphingosine kinase (SK), the enzyme that catalyzes the production of sphingosine 1-phosphate (S1P), to exert their biological effects in skeletal muscle. In this paper we show for the first time that bradykinin (BK), the leading member of kinin/kallikrein system, is able to induce myogenic differentiation in C2C12 myoblasts. Moreover, evidence is provided that SK1, the specific S1P-transporter spinster homolog 2 (Spns2) and S1P2 receptor are involved in the action exerted by BK, since pharmacological inhibition/antagonism or specific down-regulation significantly alter BK-induced myogenic differentiation. Moreover, the molecular mechanism initiated by BK involves a rapid translocation of SK1 to plasma membrane, analyzed by time-lapse immunofluorescence analysis. The present study highlights the role of SK1/Spns2/S1P receptor 2 signaling axis in BK-induced myogenic differentiation, thus confirming the crucial involvement of this pathway in skeletal muscle cell biology.
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Affiliation(s)
- Gennaro Bruno
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "Mario Serio", Università di Firenze, Viale GB Morgagni 50, 50134 Firenze, Italy
| | - Francesca Cencetti
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "Mario Serio", Università di Firenze, Viale GB Morgagni 50, 50134 Firenze, Italy; Istituto interuniversitario di Miologia, IIM, Padova, Italy.
| | - Caterina Bernacchioni
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "Mario Serio", Università di Firenze, Viale GB Morgagni 50, 50134 Firenze, Italy; Istituto interuniversitario di Miologia, IIM, Padova, Italy
| | - Chiara Donati
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "Mario Serio", Università di Firenze, Viale GB Morgagni 50, 50134 Firenze, Italy; Istituto interuniversitario di Miologia, IIM, Padova, Italy
| | - Kira Vanessa Blankenbach
- Institut für Klinische Pharmakologie, Goethe-Universität, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany
| | - Dominique Thomas
- Institut für Klinische Pharmakologie, Goethe-Universität, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany
| | - Dagmar Meyer Zu Heringdorf
- Institut für Klinische Pharmakologie, Goethe-Universität, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany
| | - Paola Bruni
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "Mario Serio", Università di Firenze, Viale GB Morgagni 50, 50134 Firenze, Italy; Istituto interuniversitario di Miologia, IIM, Padova, Italy
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13
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Pulkoski-Gross MJ, Jenkins ML, Truman JP, Salama MF, Clarke CJ, Burke JE, Hannun YA, Obeid LM. An intrinsic lipid-binding interface controls sphingosine kinase 1 function. J Lipid Res 2018; 59:462-474. [PMID: 29326159 DOI: 10.1194/jlr.m081307] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 01/04/2018] [Indexed: 12/15/2022] Open
Abstract
Sphingosine kinase 1 (SK1) is required for production of sphingosine-1-phosphate (S1P) and thereby regulates many cellular processes, including cellular growth, immune cell trafficking, and inflammation. To produce S1P, SK1 must access sphingosine directly from membranes. However, the molecular mechanisms underlying SK1's direct membrane interactions remain unclear. We used hydrogen/deuterium exchange MS to study interactions of SK1 with membrane vesicles. Using the CRISPR/Cas9 technique to generate HCT116 cells lacking SK1, we explored the effects of membrane interface disruption and the function of the SK1 interaction site. Disrupting the interface resulted in reduced membrane association and decreased cellular SK1 activity. Moreover, SK1-dependent signaling, including cell invasion and endocytosis, was abolished upon mutation of the membrane-binding interface. Of note, we identified a positively charged motif on SK1 that is responsible for electrostatic interactions with membranes. Furthermore, we demonstrated that SK1 uses a single contiguous interface, consisting of an electrostatic site and a hydrophobic site, to interact with membrane-associated anionic phospholipids. Altogether, these results define a composite domain in SK1 that regulates its intrinsic ability to bind membranes and indicate that this binding is critical for proper SK1 function. This work will allow for a new line of thinking for targeting SK1 in disease.
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Affiliation(s)
- Michael J Pulkoski-Gross
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11790.,Department of Medicine and Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY 11790
| | - Meredith L Jenkins
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8N 1A1, Canada
| | - Jean-Philip Truman
- Department of Medicine and Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY 11790
| | - Mohamed F Salama
- Department of Biochemistry, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35511, Egypt
| | - Christopher J Clarke
- Department of Medicine and Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY 11790
| | - John E Burke
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8N 1A1, Canada
| | - Yusuf A Hannun
- Department of Medicine and Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY 11790
| | - Lina M Obeid
- Department of Medicine and Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY 11790 .,Northport Veterans Affairs Medical Center, Northport, NY 11768
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14
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Bernacchioni C, Cencetti F, Ouro A, Bruno M, Gomez-Muñoz A, Donati C, Bruni P. Lysophosphatidic Acid Signaling Axis Mediates Ceramide 1-Phosphate-Induced Proliferation of C2C12 Myoblasts. Int J Mol Sci 2018; 19:ijms19010139. [PMID: 29300303 PMCID: PMC5796088 DOI: 10.3390/ijms19010139] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 12/23/2017] [Accepted: 12/28/2017] [Indexed: 02/07/2023] Open
Abstract
Sphingolipids are not only crucial for membrane architecture but act as critical regulators of cell functions. The bioactive sphingolipid ceramide 1-phosphate (C1P), generated by the action of ceramide kinase, has been reported to stimulate cell proliferation, cell migration and to regulate inflammatory responses via activation of different signaling pathways. We have previously shown that skeletal muscle is a tissue target for C1P since the phosphosphingolipid plays a positive role in myoblast proliferation implying a role in muscle regeneration. Skeletal muscle displays strong capacity of regeneration thanks to the presence of quiescent adult stem cells called satellite cells that upon trauma enter into the cell cycle and start proliferating. However, at present, the exact molecular mechanism by which C1P triggers its mitogenic effect in myoblasts is lacking. Here, we report for the first time that C1P stimulates C2C12 myoblast proliferation via lysophosphatidic acid (LPA) signaling axis. Indeed, C1P subsequently to phospholipase A2 activation leads to LPA1 and LPA3 engagement, which in turn drive Akt (protein kinase B) and ERK1/2 (extracellular signal-regulated kinases 1/2) activation, thus stimulating DNA synthesis. The present findings shed new light on the key role of bioactive sphingolipids in skeletal muscle and provide further support to the notion that these pleiotropic molecules might be useful therapeutic targets for skeletal muscle regeneration.
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Affiliation(s)
- Caterina Bernacchioni
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale GB Morgagni 50, 50134 Firenze, Italy.
- Istituto Interuniversitario di Miologia (IIM), Italy.
| | - Francesca Cencetti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale GB Morgagni 50, 50134 Firenze, Italy.
- Istituto Interuniversitario di Miologia (IIM), Italy.
| | - Alberto Ouro
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48080 Bilbao, Spain.
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel.
| | - Marina Bruno
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale GB Morgagni 50, 50134 Firenze, Italy.
| | - Antonio Gomez-Muñoz
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48080 Bilbao, Spain.
| | - Chiara Donati
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale GB Morgagni 50, 50134 Firenze, Italy.
- Istituto Interuniversitario di Miologia (IIM), Italy.
| | - Paola Bruni
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale GB Morgagni 50, 50134 Firenze, Italy.
- Istituto Interuniversitario di Miologia (IIM), Italy.
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15
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Bernacchioni C, Ghini V, Cencetti F, Japtok L, Donati C, Bruni P, Turano P. NMR metabolomics highlights sphingosine kinase-1 as a new molecular switch in the orchestration of aberrant metabolic phenotype in cancer cells. Mol Oncol 2017; 11:517-533. [PMID: 28258651 PMCID: PMC5527469 DOI: 10.1002/1878-0261.12048] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 02/17/2017] [Accepted: 02/21/2017] [Indexed: 12/11/2022] Open
Abstract
Strong experimental evidence in animal and cellular models supports a pivotal role of sphingosine kinase‐1 (SK1) in oncogenesis. In many human cancers, SK1 levels are upregulated and these increases are linked to poor prognosis in patients. Here, by employing untargeted NMR‐based metabolomic profiling combined with functional validations, we report the crucial role of SK1 in the metabolic shift known as the Warburg effect in A2780 ovarian cancer cells. Indeed, expression of SK1 induced a high glycolytic rate, characterized by increased levels of lactate along with increased expression of the proton/monocarboxylate symporter MCT1, and decreased oxidative metabolism, associated with the accumulation of intermediates of the tricarboxylic acid cycle and reduction in CO2 production. Additionally, SK1‐expressing cells displayed a significant increase in glucose uptake paralleled by GLUT3 transporter upregulation. The role of SK1 is not limited to the induction of aerobic glycolysis, affecting metabolic pathways that appear to support the biosynthesis of macromolecules. These findings highlight the role of SK1 signaling axis in cancer metabolic reprogramming, pointing out innovative strategies for cancer therapies.
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Affiliation(s)
- Caterina Bernacchioni
- Department of Biomedical, Clinical and Experimental Sciences, University of Florence, Italy
| | - Veronica Ghini
- CERM and Department of Chemistry, University of Florence, Italy
| | - Francesca Cencetti
- Department of Biomedical, Clinical and Experimental Sciences, University of Florence, Italy
| | - Lukasz Japtok
- Department of Toxicology, Faculty of Mathematics and Natural Science, Institute of Nutritional Science, University of Potsdam, Germany
| | - Chiara Donati
- Department of Biomedical, Clinical and Experimental Sciences, University of Florence, Italy
| | - Paola Bruni
- Department of Biomedical, Clinical and Experimental Sciences, University of Florence, Italy
| | - Paola Turano
- CERM and Department of Chemistry, University of Florence, Italy
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16
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Bruno M, Rizzo IM, Romero-Guevara R, Bernacchioni C, Cencetti F, Donati C, Bruni P. Sphingosine 1-phosphate signaling axis mediates fibroblast growth factor 2-induced proliferation and survival of murine auditory neuroblasts. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:814-824. [PMID: 28188805 DOI: 10.1016/j.bbamcr.2017.02.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 01/11/2017] [Accepted: 02/06/2017] [Indexed: 01/12/2023]
Abstract
Hearing loss affects millions of people in the world. In mammals the auditory system comprises diverse cell types which are terminally differentiated and with no regenerative potential. There is a tremendous research interest aimed at identifying cell therapy based solutions or pharmacological approaches that could be applied therapeutically alongside auditory devices to prevent hair cell and neuron loss. Sphingosine 1-phosphate (S1P) is a pleiotropic bioactive sphingolipid that plays key role in the regulation of many physiological and pathological functions. S1P is intracellularly produced by sphingosine kinase (SK) 1 and SK2 and exerts many of its action consequently to its ligation to S1P specific receptors (S1PR), S1P1-5. In this study, murine auditory neuroblasts named US/VOT-N33 have been used as progenitors of neurons of the spiral ganglion. We demonstrated that the fibroblast growth factor 2 (FGF2)-induced proliferative action was dependent on SK1, SK2 as well as S1P1 and S1P2. Moreover, the pro-survival effect of FGF2 from apoptotic cell death induced by staurosporine treatment was dependent on SK but not on S1PR. Additionally, ERK1/2 and Akt signaling pathways were found to mediate the mitogenic and survival action of FGF2, respectively. Taken together, these findings demonstrate a crucial role for S1P signaling axis in the proliferation and the survival of otic vesicle neuroprogenitors, highlighting the identification of possible novel therapeutical approaches to prevent neuronal degeneration during hearing loss.
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Affiliation(s)
- Marina Bruno
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "M. Serio", viale G B Morgagni 50, 50134 Firenze, Italy
| | - Ilaria Maria Rizzo
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "M. Serio", viale G B Morgagni 50, 50134 Firenze, Italy
| | - Ricardo Romero-Guevara
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "M. Serio", viale G B Morgagni 50, 50134 Firenze, Italy
| | - Caterina Bernacchioni
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "M. Serio", viale G B Morgagni 50, 50134 Firenze, Italy
| | - Francesca Cencetti
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "M. Serio", viale G B Morgagni 50, 50134 Firenze, Italy
| | - Chiara Donati
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "M. Serio", viale G B Morgagni 50, 50134 Firenze, Italy.
| | - Paola Bruni
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche "M. Serio", viale G B Morgagni 50, 50134 Firenze, Italy
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17
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Dickinson AJ, Meyer M, Pawlak EA, Gomez S, Jaspers I, Allbritton NL. Analysis of sphingosine kinase activity in single natural killer cells from peripheral blood. Integr Biol (Camb) 2015; 7:392-401. [PMID: 25786072 PMCID: PMC4566154 DOI: 10.1039/c5ib00007f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Sphingosine-1-phosphate (S1P), a lipid second messenger formed upon phosphorylation of sphingosine by sphingosine kinase (SK), plays a crucial role in natural killer (NK) cell proliferation, migration, and cytotoxicity. Dysregulation of the S1P pathway has been linked to a number of immune system disorders and therapeutic manipulation of the pathway has been proposed as a method of disease intervention. However, peripheral blood NK cells, as identified by surface markers (CD56(+)CD45(+)CD3(-)CD16) consist of a highly diverse population with distinct phenotypes and functions and it is unknown whether the S1P pathway is similarly diverse across peripheral blood NK cells. In this work, we measured the phosphorylation of sphingosine-fluorescein (SF) and subsequent metabolism of S1P fluorescein (S1PF) to form hexadecanoic acid fluorescein (HAF) in 111 single NK cells obtained from the peripheral blood of four healthy human subjects. The percentage of SF converted to S1PF or HAF was highly variable amongst the cells ranging from 0% to 100% (S1PF) and 0% to 97% (HAF). Subpopulations of cells with varying levels of S1PF formation and metabolism were readily identified. Across all subjects, the average percentage of SF converted to S1PF or HAF was 37 ± 36% and 12 ± 19%, respectively. NK cell metabolism of SF by the different subjects was also distinct with hierarchical clustering suggesting two possible phenotypes: low (<20%) or high (>50%) producers of S1PF. The heterogeneity of SK and downstream enzyme activity in NK cells may enable NK cells to respond effectively to a diverse array of pathogens as well as incipient tumor cells. NK cells from two subjects were also loaded with S1PF to assess the activity of S1P phosphatase (S1PP), which converts S1P to sphingosine. No NK cells (n = 41) formed sphingosine, suggesting that S1PP was minimally active in peripheral blood NK cells. In contrast to the SK activity, S1PP activity was homogeneous across the peripheral blood NK cells, suggesting a bias in the SK pathway towards proliferation and migration, activities supported by S1P.
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Affiliation(s)
| | - Megan Meyer
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Erica A. Pawlak
- Center for Environmental Medicine, Asthma, and Lung Biology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Shawn Gomez
- Department of Biomedical Engineering, University of North Carolina, Chapel Hill, NC 27599, USA and North Carolina State University, Raleigh, NC 27695, USA
| | - Ilona Jaspers
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC 27599, USA
- Center for Environmental Medicine, Asthma, and Lung Biology, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Pediatrics, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Nancy L. Allbritton
- Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Biomedical Engineering, University of North Carolina, Chapel Hill, NC 27599, USA and North Carolina State University, Raleigh, NC 27695, USA
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18
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Bruno G, Cencetti F, Pertici I, Japtok L, Bernacchioni C, Donati C, Bruni P. CTGF/CCN2 exerts profibrotic action in myoblasts via the up-regulation of sphingosine kinase-1/S1P3 signaling axis: Implications in the action mechanism of TGFβ. Biochim Biophys Acta Mol Cell Biol Lipids 2015; 1851:194-202. [DOI: 10.1016/j.bbalip.2014.11.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 11/19/2014] [Accepted: 11/20/2014] [Indexed: 11/29/2022]
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19
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Cencetti F, Bruno G, Blescia S, Bernacchioni C, Bruni P, Donati C. Lysophosphatidic acid stimulates cell migration of satellite cells. A role for the sphingosine kinase/sphingosine 1-phosphate axis. FEBS J 2014; 281:4467-78. [DOI: 10.1111/febs.12955] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 07/04/2014] [Accepted: 07/29/2014] [Indexed: 12/01/2022]
Affiliation(s)
- Francesca Cencetti
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche ‘Mario Serio’; Università di Firenze; Italy
- Istituto Interuniversitario di Miologia; Italy
| | - Gennaro Bruno
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche ‘Mario Serio’; Università di Firenze; Italy
| | - Sabrina Blescia
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche ‘Mario Serio’; Università di Firenze; Italy
| | - Caterina Bernacchioni
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche ‘Mario Serio’; Università di Firenze; Italy
| | - Paola Bruni
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche ‘Mario Serio’; Università di Firenze; Italy
- Istituto Interuniversitario di Miologia; Italy
| | - Chiara Donati
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche ‘Mario Serio’; Università di Firenze; Italy
- Istituto Interuniversitario di Miologia; Italy
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20
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Nagata Y, Ohashi K, Wada E, Yuasa Y, Shiozuka M, Nonomura Y, Matsuda R. Sphingosine-1-phosphate mediates epidermal growth factor-induced muscle satellite cell activation. Exp Cell Res 2014; 326:112-24. [DOI: 10.1016/j.yexcr.2014.06.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 05/25/2014] [Accepted: 06/16/2014] [Indexed: 01/03/2023]
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21
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Cencetti F, Bernacchioni C, Tonelli F, Roberts E, Donati C, Bruni P. TGFβ1 evokes myoblast apoptotic response via a novel signaling pathway involving S1P4 transactivation upstream of Rho-kinase-2 activation. FASEB J 2013; 27:4532-46. [PMID: 23913862 DOI: 10.1096/fj.13-228528] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In view of its multiple detrimental effects, transforming growth factor β1 (TGFβ1) is recognized as critical negative regulator of skeletal muscle repair. Apoptosis of skeletal muscle precursor cells driven by TGFβ1 contributes to the negative role exerted by the cytokine in tissue repair, although the underlying molecular mechanisms are still elusive. Herein we report the identification of a new signaling pathway, relying on Rho kinase-2 stimulation, subsequent to SMAD-dependent S1P4 up-regulation and transactivation via sphingosine kinase (SK)-2, that accounts for TGFβ1-induced apoptosis in cultured myoblasts. S1P4-specific gene silencing reduced by almost 50% activation of caspase-3 and poly-ADP ribosyl transferase cleavage elicited by TGFβ1. Moreover, the selective S1P4 antagonist CYM50358 also reduced the TGFβ1 proapoptotic effects. By employing pharmacological and molecular biological approaches, the involvement of SK2 and ROCK2 in the transmission of the TGFβ1 apoptotic action was also demonstrated. These results reinforce the notion that the SK/S1P axis plays a fundamental role in TGFβ1 mode of action in skeletal muscle cells and, by disclosing a novel mechanism by which TGFβ1 exerts its harmful action, pinpoint new molecular targets that in principle could be beneficial in the treatment of several skeletal muscle disorders or aging-dependent muscle atrophy.
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Affiliation(s)
- Francesca Cencetti
- 2Dipartimento di Scienze Biomediche, Sperimentali e Cliniche, Università di Firenze, Viale G.B. Morgagni 50, 50134 Florence, Italy.
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22
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Donati C, Cencetti F, Bruni P. New insights into the role of sphingosine 1-phosphate and lysophosphatidic acid in the regulation of skeletal muscle cell biology. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1831:176-84. [DOI: 10.1016/j.bbalip.2012.06.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 06/29/2012] [Accepted: 06/30/2012] [Indexed: 12/25/2022]
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23
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Gandy KAO, Obeid LM. Regulation of the sphingosine kinase/sphingosine 1-phosphate pathway. Handb Exp Pharmacol 2013:275-303. [PMID: 23563662 DOI: 10.1007/978-3-7091-1511-4_14] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Sphingolipids have emerged as pleiotropic signaling molecules with roles in numerous cellular and biological functions. Defining the regulatory mechanisms governing sphingolipid metabolism is crucial in order to develop a complete understanding of the biological functions of sphingolipid metabolites. The sphingosine kinase/ sphingosine 1-phosphate pathway was originally thought to function in the irreversible breakdown of sphingoid bases; however, in the last few decades it has materialized as an extremely important signaling pathway involved in a plethora of cellular events contributing to both normal and pathophysiological events. Recognition of the SK/S1P pathway as a second messaging system has aided in the identification of many mechanisms of its regulation; however, a cohesive, global understanding of the regulatory mechanisms controlling the SK/S1P pathway is lacking. In this chapter, the role of the SK/S1P pathway as a second messenger is discussed, and its role in mediating TNF-α- and EGF-induced biologies is examined. This work provides a comprehensive look into the roles and regulation of the sphingosine kinase/ sphingosine 1-phosphate pathway and highlights the potential of the pathway as a therapeutic target.
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Affiliation(s)
- K Alexa Orr Gandy
- The Department of Molecular and Cellular Biology and Pathobiology, The Medical University of South Carolina, Charleston, SC 29425, USA
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Abstract
Studies performed in the last fifteen years have clearly established that the bioactive sphingolipid sphingosine 1-phosphate (S1P) affects various different biological properties of myogenic precursor cells as well as physiological features of adult skeletal muscle. Noticeably, in myogenic precursor cells multiple growth factors and cytokines cross-communicate with S1P axis and the engagement of distinct S1P receptor subtypes appears to be crucially implicated in transmitting specific biological effects. This paper summarizes current research findings and discloses the potential for new therapeutics designed to alter S1P signaling with the aim of improving skeletal muscle repair.
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Affiliation(s)
- Paola Bruni
- Dipartimento di Scienze Biochimiche, Università di Firenze, Firenze, Italy.
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25
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Sphingosine kinase and sphingosine-1-phosphate receptors: novel therapeutic targets of rheumatoid arthritis? Future Med Chem 2012; 4:727-33. [PMID: 22530637 DOI: 10.4155/fmc.12.28] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic, destructive, autoimmune joint disease characterized by elevated levels of proinflammatory cytokine production. Sphingosine kinase (SphK) phosphorylates sphingosine into sphingosine-1-phosphate. Synovial fluid of RA patients exhibits significantly higher levels of S1P than their non-inflammatory osteoarthritis counterparts. SphK blockade suppresses cytokines and MMP-9 release in RA peripheral blood mononuclear cells. In addition, downregulation of SphK1 either through a specific siRNA approach or transgenic human TNF-α SphK1-deficient mice (hTNF-α/SphK1(-/-)) exhibit significantly less synovial inflammation and joint pathology. By contrast, SphK2 modulation leads to disease exacerbation. These results clearly demonstrate that such anti- and proinflammatory potential of SphK1/2 modulation may alter the outcome in RA synovitis and raises the possibility that drugs that specifically target SphK1 activity may play a beneficial role in the treatment of RA and other autoimmune rheumatic diseases.
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26
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Bernacchioni C, Cencetti F, Blescia S, Donati C, Bruni P. Sphingosine kinase/sphingosine 1-phosphate axis: a new player for insulin-like growth factor-1-induced myoblast differentiation. Skelet Muscle 2012; 2:15. [PMID: 22788716 PMCID: PMC3439699 DOI: 10.1186/2044-5040-2-15] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Accepted: 06/21/2012] [Indexed: 01/12/2023] Open
Abstract
Background Insulin-like growth factor-1 (IGF-1) is the most important physiological regulator of skeletal muscle progenitor cells, which are responsible for adult skeletal muscle regeneration. The ability of IGF-1 to affect multiple aspects of skeletal muscle cell biology such as proliferation, differentiation, survival and motility is well recognized, although the molecular mechanisms implicated in its complex biological action are not fully defined. Since sphingosine 1-phosphate (S1P) has recently emerged as a key player in skeletal muscle regeneration, we investigated the possible involvement of the sphingosine kinase (SK)/S1P receptor axis on the biological effects of IGF-1 in murine myoblasts. Methods RNA interference, chemical inhibition and immunofluorescence approaches were used to assess the role of the SK/S1P axis on the myogenic and mitogenic effects of IGF-1 in C2C12 myoblasts. Results We show that IGF-1 increases SK activity in mouse myoblasts. The effect of the growth factor does not involve transcriptional regulation of SK1 or SK2, since the protein content of both isoforms is not affected; rather, IGF-1 enhances the fraction of the active form of SK. Moreover, transactivation of the S1P2 receptor induced by IGF-1 via SK activation appears to be involved in the myogenic effect of the growth factor. Indeed, the pro-differentiating effect of IGF-1 in myoblasts is impaired when SK activity is pharmacologically inhibited, or SK1 or SK2 are specifically silenced, or the S1P2 receptor is downregulated. Furthermore, in this study we show that IGF-1 transactivates S1P1/S1P3 receptors via SK activation and that this molecular event negatively regulates the mitogenic effect elicited by the growth factor, since the specific silencing of S1P1 or S1P3 receptors increases cell proliferation induced by IGF-1. Conclusions We demonstrate a dual role of the SK/S1P axis in response to myoblast challenge with IGF-1, that likely is important to regulate the biological effect of this growth factor. These findings add new information to the understanding of the mechanism by which IGF-1 regulates skeletal muscle regeneration.
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Affiliation(s)
- Caterina Bernacchioni
- Department of Biochemical Sciences, University of Florence, GB Morgagni 50, 50134, Florence, Italy.,Interuniversity Institute of Myology (IIM), Padova, Italy
| | - Francesca Cencetti
- Department of Biochemical Sciences, University of Florence, GB Morgagni 50, 50134, Florence, Italy.,Interuniversity Institute of Myology (IIM), Padova, Italy
| | - Sabrina Blescia
- Department of Biochemical Sciences, University of Florence, GB Morgagni 50, 50134, Florence, Italy
| | - Chiara Donati
- Department of Biochemical Sciences, University of Florence, GB Morgagni 50, 50134, Florence, Italy.,Interuniversity Institute of Myology (IIM), Padova, Italy
| | - Paola Bruni
- Department of Biochemical Sciences, University of Florence, GB Morgagni 50, 50134, Florence, Italy.,Interuniversity Institute of Myology (IIM), Padova, Italy
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27
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Sphingosine-1-phosphate enhances satellite cell activation in dystrophic muscles through a S1PR2/STAT3 signaling pathway. PLoS One 2012; 7:e37218. [PMID: 22606352 PMCID: PMC3351440 DOI: 10.1371/journal.pone.0037218] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Accepted: 04/15/2012] [Indexed: 02/02/2023] Open
Abstract
Sphingosine-1-phosphate (S1P) activates a widely expressed family of G protein-coupled receptors, serves as a muscle trophic factor and activates muscle stem cells called satellite cells (SCs) through unknown mechanisms. Here we show that muscle injury induces dynamic changes in S1P signaling and metabolism in vivo. These changes include early and profound induction of the gene encoding the S1P biosynthetic enzyme SphK1, followed by induction of the catabolic enzyme sphingosine phosphate lyase (SPL) 3 days later. These changes correlate with a transient increase in circulating S1P levels after muscle injury. We show a specific requirement for SphK1 to support efficient muscle regeneration and SC proliferation and differentiation. Mdx mice, which serve as a model for muscular dystrophy (MD), were found to be S1P-deficient and exhibited muscle SPL upregulation, suggesting that S1P catabolism is enhanced in dystrophic muscle. Pharmacological SPL inhibition increased muscle S1P levels, improved mdx muscle regeneration and enhanced SC proliferation via S1P receptor 2 (S1PR2)-dependent inhibition of Rac1, thereby activating Signal Transducer and Activator of Transcription 3 (STAT3), a central player in inflammatory signaling. STAT3 activation resulted in p21 and p27 downregulation in a S1PR2-dependent fashion in myoblasts. Our findings suggest that S1P promotes SC progression through the cell cycle by repression of cell cycle inhibitors via S1PR2/STAT3-dependent signaling and that SPL inhibition may provide a therapeutic strategy for MD.
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28
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Current World Literature. Curr Opin Nephrol Hypertens 2012; 21:106-18. [DOI: 10.1097/mnh.0b013e32834ee42b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Calise S, Blescia S, Cencetti F, Bernacchioni C, Donati C, Bruni P. Sphingosine 1-phosphate stimulates proliferation and migration of satellite cells: role of S1P receptors. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2011; 1823:439-50. [PMID: 22178384 DOI: 10.1016/j.bbamcr.2011.11.016] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 11/14/2011] [Accepted: 11/16/2011] [Indexed: 12/16/2022]
Abstract
Satellite cells are resident stem cells of skeletal muscle; they are normally quiescent but upon post-trauma activation start to proliferate and fuse with damaged fibers contributing to muscle regeneration. In this study the effect of the bioactive sphingolipid sphingosine 1-phosphate (S1P) on the proliferative and migratory response of murine satellite cells has been examined. S1P was found to stimulate labeled thymidine incorporation in a phosphatidylinositol 3-kinase-dependent manner. Moreover, by employing selective S1P receptor agonists and antagonists and silencing individual S1P receptors, the mitogenic action of S1P in satellite cells was shown to depend on S1P2 and S1P3. Notably, by using different experimental approaches S1P was found to positively influence satellite cell migration, necessary for their recruitment at the site of muscle damage. Interestingly, the specific silencing of individual S1P receptor subtypes demonstrated the pivotal role of S1P1 and S1P4 in mediating the S1P migratory effect. This latter result demonstrates for the first time that S1P4 receptor has a role in skeletal muscle cells, supporting the notion that this receptor subtype plays a biological action broader than that so far identified in lymphoid tissue. On the contrary, S1P2 was found to negatively regulate cell migration. Collectively, these results are in favour of an important function of S1P in satellite cell biology that could in principle be exploited as novel pharmacological target for improving skeletal muscle regeneration.
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Affiliation(s)
- Serena Calise
- Dipartimento di Scienze Biochimiche, Università di Firenze, 50134 Firenze, Italy
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30
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Bernacchioni C, Cencetti F, Kwon MJ, Gwak HS, Jeong SK, Bruni P, Donati C. The sphingosine kinase activator K6PC-5 stimulates C2C12 myoblast differentiation. Int J Immunopathol Pharmacol 2011; 24:55-62. [PMID: 21496387 DOI: 10.1177/039463201102400107] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Previously, K6PC-5, a synthetic derivative of ceramide, was demonstrated to activate sphingosine kinase (SK)-1 in keratinocytes. In this study its potential biological effect in mouse myoblasts was examined. The obtained results show that K6PC-5 promotes myogenic differentiation by enhancing myogenic marker expression, differentiation index and fusion index. Interestingly, its biological action was prevented by pharmacological inhibition of SK or S1P2 receptor, in full agreement with their recognized role in myoblast differentiation. This is the first evidence that pharmacological activation of SK accelerates myogenesis and suggests that this new therapeutic strategy could be possibly employed in skeletal muscle disorders where muscle regeneration is deficient.
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Affiliation(s)
- C Bernacchioni
- Dipartimento di Scienze Biochimiche, Università di Firenze; Istituto Interuniversitario di Miologia, Firenze, Italy
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31
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Donati C, Marseglia G, Magi A, Serratì S, Cencetti F, Bernacchioni C, Nannetti G, Benelli M, Brunelli S, Torricelli F, Cossu G, Bruni P. Sphingosine 1-phosphate induces differentiation of mesoangioblasts towards smooth muscle. A role for GATA6. PLoS One 2011; 6:e20389. [PMID: 21629665 PMCID: PMC3101247 DOI: 10.1371/journal.pone.0020389] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Accepted: 05/02/2011] [Indexed: 11/18/2022] Open
Abstract
Different cells can contribute to repair following vascular injury by differentiating into smooth muscle (SM) cells; however the extracellular signals involved are presently poorly characterized. Mesoangioblasts are progenitor cells capable of differentiating into various mesoderm cell types including SM cells. In this study the biological action exerted by the pleiotropic sphingolipid sphingosine 1-phosphate (S1P) in human mesoangioblasts has been initially investigated by cDNA microarray analysis. Obtained data confirmed the anti-apoptotic action of this sphingolipid and identified for the first time a strong differentiating action toward SM cells. Quantitative mRNA and protein analysis corroborated the microarray results demonstrating enhanced expression of myogenic marker proteins and regulation of the expression of transcription factor GATA6 and its co-regulator, LMCD1. Importantly, GATA6 up-regulation induced by S1P was responsible for the enhanced expression of SM-specific contractile proteins. Moreover, by specific gene silencing experiments GATA6 was critical in the pro-differentiating activity of the cytokine TGFβ. Finally, the pharmacological inhibition of endogenous S1P formation in response to TGFβ abrogated GATA6 up-regulation, supporting the view that the S1P pathway plays a physiological role in mediating the pro-myogenic effect of TGFβ. This study individuates GATA6 as novel player in the complex transcriptional regulation of mesoangioblast differentiation into SM cells and highlights a role for S1P to favour vascular regeneration.
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Affiliation(s)
- Chiara Donati
- Dipartimento di Scienze Biochimiche, Università di Firenze, Firenze, Italia
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Catarzi S, Romagnoli C, Marcucci G, Favilli F, Iantomasi T, Vincenzini MT. Redox regulation of ERK1/2 activation induced by sphingosine 1-phosphate in fibroblasts: involvement of NADPH oxidase and platelet-derived growth factor receptor. Biochim Biophys Acta Gen Subj 2011; 1810:446-56. [PMID: 21256191 DOI: 10.1016/j.bbagen.2011.01.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Revised: 12/20/2010] [Accepted: 01/13/2011] [Indexed: 01/05/2023]
Abstract
BACKGROUND Sphingosine 1-phosphate (S1P) is a sphingolipid metabolite synthesized after stimulation with growth factors or cytokines. S1P extracellular effects are mediated through specific Gi-protein coupled receptors (GPCRs). Recently, we demonstrated in NIH3T3 fibroblasts stimulated by platelet-derived growth factor (PDGF) or S1P the NADPH oxidase activation and the H(2)O(2) intracellular level increase trough the Gi protein involvement. METHODS NIH3T3 fibroblast cell cultures were used. Western blot and quantitative analyses by Chemidoc-Quantity-One software were performed. H(2)O(2) level was assayed by fluorescence spectrophotometric analysis, and cell proliferation by counted manually or ELISA kit. RESULTS This study demonstrates, in NIH 3T3 fibroblasts, a novel redox regulated mechanism of S1P-induced activation of ERK 1/2 related to NADPH oxidase activity and intracellular H(2)O(2) level increase with PDGF receptor tyrosine kinase involvement through a transactivation mechanism. This event is mediated by S1P(1) and S1P(3) receptors by Gi proteins and can contribute to S1P mitogenic signaling. CONCLUSION These results can be related to mechanisms of cross-talk previously identified between receptor tyrosine kinase, including PDGFreceptor, and several GPCR ligands. GENERAL SIGNIFICANCE The redox-sensitive ERK1/2 and PDGFr tyrosine kinase activity could be targets for therapies in diseases in which deregulation of intracellular oxidative status and the consequent alteration of S1P and/or PDGF signaling pathway are involved.
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Affiliation(s)
- Serena Catarzi
- Department of Biochemical Science, University of Florence, Viale Morgagni 50, 50134, Florence, Italy
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