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Chung LH, Liu D, Liu XT, Qi Y. Ceramide Transfer Protein (CERT): An Overlooked Molecular Player in Cancer. Int J Mol Sci 2021; 22:13184. [PMID: 34947980 PMCID: PMC8705978 DOI: 10.3390/ijms222413184] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/02/2021] [Accepted: 12/05/2021] [Indexed: 12/26/2022] Open
Abstract
Sphingolipids are a class of essential lipids implicated in constructing cellular membranes and regulating nearly all cellular functions. Sphingolipid metabolic network is centered with the ceramide-sphingomyelin axis. Ceramide is well-recognized as a pro-apoptotic signal; while sphingomyelin, as the most abundant type of sphingolipids, is required for cell growth. Therefore, the balance between these two sphingolipids can be critical for cancer cell survival and functioning. Ceramide transfer protein (CERT) dictates the ratio of ceramide to sphingomyelin within the cell. It is the only lipid transfer protein that specifically delivers ceramide from the endoplasmic reticulum to the Golgi apparatus, where ceramide serves as the substrate for sphingomyelin synthesis. In the past two decades, an increasing body of evidence has suggested a critical role of CERT in cancer, but much more intensive efforts are required to draw a definite conclusion. Herein, we review all research findings of CERT, focusing on its molecular structure, cellular functions and implications in cancer. This comprehensive review of CERT will help to better understand the molecular mechanism of cancer and inspire to identify novel druggable targets.
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Affiliation(s)
- Long Hoa Chung
- Centenary Institute of Cancer Medicine and Cell Biology, University of Sydney, Camperdown, NSW 2050, Australia; (D.L.); (X.T.L.)
| | | | | | - Yanfei Qi
- Centenary Institute of Cancer Medicine and Cell Biology, University of Sydney, Camperdown, NSW 2050, Australia; (D.L.); (X.T.L.)
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Taniguchi M, Okazaki T. Role of ceramide/sphingomyelin (SM) balance regulated through "SM cycle" in cancer. Cell Signal 2021; 87:110119. [PMID: 34418535 DOI: 10.1016/j.cellsig.2021.110119] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/16/2021] [Accepted: 08/16/2021] [Indexed: 12/15/2022]
Abstract
Sphingomyelin synthase (SMS), which comprises of two isozymes, SMS1 and SMS2, is the only enzyme that generates sphingomyelin (SM) by transferring phosphocholine of phosphatidylcholine to ceramide in mammals. Conversely, ceramide is generated from SM hydrolysis via sphingomyelinases (SMases), ceramide de novo synthesis, and the salvage pathway. The biosynthetic pathway for SM and ceramide content by SMS and SMase, respectively, is called "SM cycle." SM forms a SM-rich microdomain on the cell membrane to regulate signal transduction, such as proliferation/survival, migration, and inflammation. On the other hand, ceramide acts as a lipid mediator by forming a ceramide-rich platform on the membrane, and ceramide exhibits physiological actions such as cell death, cell cycle arrest, and autophagy induction. Therefore, the regulation of ceramide/SM balance by SMS and SMase is responsible for diverse cell functions not only in physiological cells but also in cancer cells. This review outlines the implications of ceramide/SM balance through "SM cycle" in cancer progression and prevention. In addition, the possible involvement of "SM cycle" is introduced in anti-cancer tumor immunity, which has become a hot topic to innovate a more effective and safer way to conquer cancer in recent years.
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Affiliation(s)
- Makoto Taniguchi
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, Japan
| | - Toshiro Okazaki
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, 1-308 Suematsu, Nonoichi-shi, Ishikawa 921-8836, Japan; Faculty of Advanced Life Science, Graduate School of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan.
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Jing F, Jing C, Dai X, Zhou G, Di S, Bi X, Dai T, Qin T, Hong L. Sphingomyelin synthase 2 but not sphingomyelin synthase 1 is upregulated in ovarian cancer and involved in migration, growth and survival via different mechanisms. Am J Transl Res 2021; 13:4412-4421. [PMID: 34150023 PMCID: PMC8205710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 02/21/2021] [Indexed: 06/12/2023]
Abstract
Sphingomyelin synthase 1 (SMS1) and 2 (SMS2) are two enzymes required for sphingomyelin de novo synthesis, and their roles in tumor transformation and development have been recently recognized. In this work, we systematically evaluated the expression patterns of SMS1 and 2 in ovarian cancer patient samples and cell lines. Furthermore, we analyzed the functions of SMS2 and its underlying mechanisms. We observed a specific increase in SMS2 expression in ovarian cancer tissues compared to the adjacent normal ovary tissues in majority of patients' samples. This is regardless of their clinico-pathological characteristics. SMS1 expression was similar between ovarian cancer and its normal counterpart in 30 patients tested. The upregulation of SMS2 but not SMS1 was also reproducible in a panel of ovarian cancer cell lines. Functional analysis indicated that SMS2 plays a predominant role in promoting migration rather than proliferation in ovarian cancer. SMS2 depletion suppressed migration, growth and survival, and furthermore this was dependent on SMS2 baseline level in ovarian cancer cells. SMS2 inhibition significantly augmented cisplatin's efficacy. We further found that migration inhibition induced by SMS2 depletion was largely due to the suppression of RhoA/ROCK/LIMK/cofilin and RhoA/ROCK/FAK/paxillin pathways. In addition, lipid metabolism disruption, oxidative stress and damage, and impaired mitochondrial function contributed to the inhibitory effects of SMS2 depletion in ovarian cancer growth and survival. Our work demonstrates that SMS2 but not SMS1 is upregulated in ovarian cancer and involved in migration, growth and survival via different mechanisms. Our findings highlight the therapeutic value of SMS2 inhibition in the treatment of ovarian cancer.
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Affiliation(s)
- Fang Jing
- Department of Gynaecology, Renmin Hospital of Wuhan UniversityWuhan, China
| | - Chao Jing
- Department of Stomatology, Cangbu Central Hospital of Xinzhou DistrictWuhan, China
| | - Xiaoyan Dai
- Department of Gynaecology, Tongren Hospital of Wuhan University (Wuhan Third Hospital)Wuhan, China
| | - Guang Zhou
- Department of Gynaecology, Tongren Hospital of Wuhan University (Wuhan Third Hospital)Wuhan, China
| | - Shi Di
- Department of Gynaecology, Tongren Hospital of Wuhan University (Wuhan Third Hospital)Wuhan, China
| | - Xiaoxia Bi
- Department of Gynaecology, Tongren Hospital of Wuhan University (Wuhan Third Hospital)Wuhan, China
| | - Tingting Dai
- Department of Obstetrics, Tongren Hospital of Wuhan University (Wuhan Third Hospital)Wuhan, China
| | - Tingting Qin
- Department of Integrated Chinese and Western Medicine, Tongren Hospital of Wuhan University (Wuhan Third Hospital)Wuhan, China
| | - Li Hong
- Department of Gynaecology, Renmin Hospital of Wuhan UniversityWuhan, China
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Duan W, Wang K, Duan Y, Chen X, Chu X, Hu P, Xiong B. Combined Analysis of RNA Sequence and Microarray Data Reveals a Competing Endogenous RNA Network as Novel Prognostic Markers in Malignant Pleural Mesothelioma. Front Oncol 2021; 11:615234. [PMID: 33968720 PMCID: PMC8104912 DOI: 10.3389/fonc.2021.615234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 02/15/2021] [Indexed: 12/13/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is a highly aggressive cancer with short survival time. Unbalanced competing endogenous RNAs (ceRNAs) have been shown to participate in the tumor pathogenesis and served as biomarkers for the clinical prognosis. However, the comprehensive analyses of the ceRNA network in the prognosis of MPM are still rarely reported. In this study, we obtained the transcriptome data of the MPM and the normal samples from TCGA, EGA, and GEO databases and identified the differentially expressed (DE) mRNAs, lncRNAs, and miRNAs. The functions of the prognostic genes and the overlapped DEmRNAs were further annotated by the multiple enrichment analyses. Then, the targeting relationships among lncRNA–miRNA and miRNA–mRNA were predicted and calculated, and a prognostic ceRNA regulatory network was established. We included the prognostic 73 mRNAs and 13 miRNAs and 26 lncRNAs into the ceRNA network. Moreover, 33 mRNAs, three miRNAs, and seven lncRNAs were finally associated with prognosis, and a model including seven mRNAs, two lincRNAs, and some clinical factors was finally established and validated by two independent cohorts, where CDK6 and SGMS1-AS1 were significant to be independent prognostic factors. In addition, the identified co-expressed modules associated with the prognosis were overrepresented in the ceRNA network. Multiple enrichment analyses showed the important roles of the extracellular matrix components and cell division dysfunction in the invasion of MPM potentially. In summary, the prognostic ceRNA network of MPM was established and analyzed for the first time and these findings shed light on the function of ceRNAs and revealed the potential prognostic and therapeutic biomarkers of MPM.
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Affiliation(s)
- Weicheng Duan
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kang Wang
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yijie Duan
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiuyi Chen
- Key Laboratory of Environment and Health (HUST), Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xufeng Chu
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ping Hu
- Key Laboratory of Environment and Health (HUST), Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Xiong
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Cholesterol and Sphingolipid Enriched Lipid Rafts as Therapeutic Targets in Cancer. Int J Mol Sci 2021; 22:ijms22020726. [PMID: 33450869 PMCID: PMC7828315 DOI: 10.3390/ijms22020726] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/09/2021] [Accepted: 01/11/2021] [Indexed: 02/07/2023] Open
Abstract
Lipid rafts are critical cell membrane lipid platforms enriched in sphingolipid and cholesterol content involved in diverse cellular processes. They have been proposed to influence membrane properties and to accommodate receptors within themselves by facilitating their interaction with ligands. Over the past decade, technical advances have improved our understanding of lipid rafts as bioactive structures. In this review, we will cover the more recent findings about cholesterol, sphingolipids and lipid rafts located in cellular and nuclear membranes in cancer. Collectively, the data provide insights on the role of lipid rafts as biomolecular targets in cancer with good perspectives for the development of innovative therapeutic strategies.
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Overriding sorafenib resistance via blocking lipid metabolism and Ras by sphingomyelin synthase 1 inhibition in hepatocellular carcinoma. Cancer Chemother Pharmacol 2020; 87:217-228. [PMID: 33226447 DOI: 10.1007/s00280-020-04199-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/31/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND The survival benefit of sorafenib, the most used drug for advanced hepatocellular carcinoma (HCC), is unsatisfactory due to the development of adaptive resistance. Exploring the mechanisms underlying sorafenib resistance is important to develop sensitizing strategy. Sphingomyelin synthase (SMS) plays a critical role in sphingolipid metabolism which is involved in oncogenesis and drug resistance. METHODS SMS1 and SMS2 levels in HCC cells in response to prolonged chemotherapy were analyzed using ELISA. mRNA and protein levels of SMS in HCC and adjacent normal tissues were analyzed by ELISA and real-time PCR. The roles of SMS and its downstream targets were investigated using cellular and biochemical assays and mass spectrometry. RESULTS SMS1, but not SMS2, was upregulated in HCC in response to sorafenib treatment, although HCC displayed similar RNA and protein level of SMS1 compared to adjacent normal liver tissues. Overexpression of SMS1 promoted HCC growth and migration, and alleviated sorafenib's toxicity. SMS1 inhibition via genetic and pharmacological approaches consistently resulted in inhibition of growth and migration, and apoptosis induction in sorafenib-resistance HCC cells. SMS1 inhibition also augmented the efficacy of sorafenib in sensitive HCC cells. SMS1 inhibition disrupted sphingolipid metabolism via accumulating ceramide and decreasing sphingomyelin, inducing mitochondrial dysfunction and oxidative stress, and decreasing Ras activity in resistant cells. Overexpression of constitutively active Ras reversed the inhibitory effects of SMS1 inhibition. Although SMS1 overexpression did not affect Ras expression and activity, Pearson correlation coefficient analysis of SMS1 and Ras expression demonstrated that there was positive correlation between SMS1 and RAS (NRAS, R = 0.55, p < 0.01; KRAS, R = 0.44, p < 0.01). CONCLUSIONS Our work is the first to suggest that SMS1 plays a more important role in sorafenib resistance than tumorigenesis, and provides preclinical evidence to overcome sorafenib resistance with SMS1 inhibition in HCC.
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Daian F, Esper BS, Ashrafi N, Yu GQ, Luciano G, Moorthi S, Luberto C. Regulation of human sphingomyelin synthase 1 translation through its 5'-untranslated region. FEBS Lett 2020; 594:3751-3764. [PMID: 33037626 PMCID: PMC7756225 DOI: 10.1002/1873-3468.13952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 09/04/2020] [Indexed: 11/11/2022]
Abstract
Bcr‐abl1 oncogene causes a shift in the transcription start site of the SMS1 gene (SGMS1) encoding the sphingomyelin (SM) synthesizing enzyme, sphingomyelin synthase 1 (SMS1). This results in an mRNA with a significantly shorter 5′‐UTR, called 7‐SGMS1, which is translated more efficiently than another transcript (IIb‐SGMS1) with a longer 5′UTR in Bcr‐abl1‐positive cells. Here, we determine the effects of these alternative 5′UTRs on SMS1 translation and investigate the key features underlying such regulation. First, the presence of the longer IIb 5′UTR is sufficient to greatly impair translation of a reporter gene. Deletion of the upstream open reading frame (−164 nt) or of the predicted stem‐loops in the 5′UTR of IIb‐SGMS1 has minimal effects on SGMS1 translation. Conversely, deletion of nucleotides −310 to −132 enhanced transcription of IIb‐SGMS1 to reach that of 7‐SGMS1. We thus suggest that regulatory features within nucleotides −310 and −132 modulate IIb‐SGMS1 translation efficiency.
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Affiliation(s)
- Foysal Daian
- Renaissance School of Medicine, Stony Brook University, NY, USA
| | | | - Navid Ashrafi
- Department of Physiology and Biophysics, Stony Brook University, NY, USA
| | - Gui-Qin Yu
- Department of Physiology and Biophysics, Stony Brook University, NY, USA
| | - Gabriella Luciano
- Department of Physiology and Biophysics, Stony Brook University, NY, USA
| | - Sitapriya Moorthi
- Department of Physiology and Biophysics, Stony Brook University, NY, USA
| | - Chiara Luberto
- Department of Physiology and Biophysics, Stony Brook University, NY, USA
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Taniguchi M, Okazaki T. Ceramide/Sphingomyelin Rheostat Regulated by Sphingomyelin Synthases and Chronic Diseases in Murine Models. J Lipid Atheroscler 2020; 9:380-405. [PMID: 33024732 PMCID: PMC7521967 DOI: 10.12997/jla.2020.9.3.380] [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: 06/09/2020] [Revised: 07/16/2020] [Accepted: 07/19/2020] [Indexed: 12/16/2022] Open
Abstract
Ceramide and sphingomyelin (SM) are major components of the double membrane-bound sphingolipids. Ceramide is an essential bioactive lipid involved in numerous cell processes including apoptosis, necrosis, and autophagy-dependent cell death. Inversely, SM regulates opposite cellular processes such as proliferation and migration by changing receptor-mediated signal transduction in the lipid microdomain. SM is generated through a transfer of phosphocholine from phosphatidylcholine to ceramide by SM synthases (SMSs). Research during the past several decades has revealed that the ceramide/SM balance in cellular membranes regulated by SMSs is important to decide the cell fate, survival, and proliferation. In addition, recent experimental studies utilizing SMS knockout mice and murine disease models provide evidence that SMS-regulated ceramide/SM balance is involved in human diseases. Here, we review the basic structural and functional characteristics of SMSs and focus on their cellular functions through the regulation of ceramide/SM balance in membrane microdomains. In addition, we present the pathological or physiological implications of SMSs by analyzing their role in SMS-knockout mice and human disease models. This review finally presents evidence indicating that the regulation of ceramide/SM balance through SMS could be a therapeutic target for human disorders.
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Affiliation(s)
- Makoto Taniguchi
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Kahoku, Japan
| | - Toshiro Okazaki
- Research Institute for Bioresources and Biotechnology, Kanazawa Prefectural University, Nonoichi, Japan
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D'Angelo G, Clarke CJ, Silva LC. Meeting Report - The 2019 FEBS special meeting on sphingolipid biology: sphingolipids in physiology and pathology. J Cell Sci 2019; 132:132/15/jcs235705. [PMID: 31371572 DOI: 10.1242/jcs.235705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Sphingolipids are a fundamental class of molecules that are involved in structural, organizational and signaling properties of eukaryotic membranes. Defects in their production or disposal lead to acquired and inherited human diseases. A growing community of scientists has embraced the challenge to dissect different aspects of sphingolipid biology using a variety of approaches, and a substantial part of this community met last May in the beautiful town of Cascais in Portugal. Over 200 scientists from 26 countries animated the conference, held in a 15th century citadel, sharing their data and opinions on the current understanding and future challenges in sphingolipid research. Here, we report some of their contributions to provide the readers with a bird's-eye view of the themes discussed at the meeting.
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Affiliation(s)
- Giovanni D'Angelo
- Interfaculty Institute of Bioengineering, Ecole polytechnique fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Christopher J Clarke
- Department of Medicine and the Cancer Center, Stony Brook University, Stony Brook, NY 11794, USA
| | - Liana C Silva
- iMed.ULisboa-Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
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Bilal F, Montfort A, Gilhodes J, Garcia V, Riond J, Carpentier S, Filleron T, Colacios C, Levade T, Daher A, Meyer N, Andrieu-Abadie N, Ségui B. Sphingomyelin Synthase 1 (SMS1) Downregulation Is Associated With Sphingolipid Reprogramming and a Worse Prognosis in Melanoma. Front Pharmacol 2019; 10:443. [PMID: 31114500 PMCID: PMC6503817 DOI: 10.3389/fphar.2019.00443] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 04/08/2019] [Indexed: 12/25/2022] Open
Abstract
Sphingolipid (SL) metabolism alterations have been frequently reported in cancer including in melanoma, a bad-prognosis skin cancer. In normal cells, de novo synthesized ceramide is mainly converted to sphingomyelin (SM), the most abundant SL, by sphingomyelin synthase 1 (SMS1) and, albeit to a lesser extent, SMS2, encoded by the SGMS1 and SGMS2 genes, respectively. Alternatively, ceramide can be converted to glucosylceramide (GlcCer) by the GlcCer synthase (GCS), encoded by the UGCG gene. Herein, we provide evidence for the first time that SMS1 is frequently downregulated in various solid cancers, more particularly in melanoma. Accordingly, various human melanoma cells displayed a SL metabolism signature associated with (i) a robust and a low expression of UGCG and SGMS1/2, respectively, (ii) higher in situ enzyme activity of GCS than SMS, and (iii) higher intracellular levels of GlcCer than SM. SMS1 was expressed at low levels in most of the human melanoma biopsies. In addition, several mutations and increased CpG island methylation in the SGMS1 gene were identified that likely affect SMS1 expression. Finally, low SMS1 expression was associated with a worse prognosis in metastatic melanoma patients. Collectively, our study indicates that SMS1 downregulation in melanoma enhances GlcCer synthesis, triggering an imbalance in the SM/GlcCer homeostasis, which likely contributes to melanoma progression. Evaluating SMS1 expression level in tumor samples might serve as a biomarker to predict clinical outcome in advanced melanoma patients.
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Affiliation(s)
- Fatima Bilal
- INSERM UMR 1037, CRCT, Toulouse, France.,Equipe Labellisée Ligue Contre Le Cancer, Toulouse, France.,Ecole Doctorale de Sciences et Technologies, Université Libanaise, Beirut, Lebanon.,Université Toulouse III - Paul Sabatier, Toulouse, France
| | - Anne Montfort
- INSERM UMR 1037, CRCT, Toulouse, France.,Equipe Labellisée Ligue Contre Le Cancer, Toulouse, France.,Université Toulouse III - Paul Sabatier, Toulouse, France
| | | | - Virginie Garcia
- INSERM UMR 1037, CRCT, Toulouse, France.,Equipe Labellisée Ligue Contre Le Cancer, Toulouse, France
| | - Joëlle Riond
- INSERM UMR 1037, CRCT, Toulouse, France.,Equipe Labellisée Ligue Contre Le Cancer, Toulouse, France
| | - Stéphane Carpentier
- INSERM UMR 1037, CRCT, Toulouse, France.,Equipe Labellisée Ligue Contre Le Cancer, Toulouse, France.,Université Toulouse III - Paul Sabatier, Toulouse, France
| | | | - Céline Colacios
- INSERM UMR 1037, CRCT, Toulouse, France.,Equipe Labellisée Ligue Contre Le Cancer, Toulouse, France.,Université Toulouse III - Paul Sabatier, Toulouse, France
| | - Thierry Levade
- INSERM UMR 1037, CRCT, Toulouse, France.,Equipe Labellisée Ligue Contre Le Cancer, Toulouse, France.,Université Toulouse III - Paul Sabatier, Toulouse, France.,Laboratoire de Biochimie, CHU Purpan, Institut Fédératif de Biologie, Toulouse, France
| | - Ahmad Daher
- Ecole Doctorale de Sciences et Technologies, Université Libanaise, Beirut, Lebanon
| | - Nicolas Meyer
- INSERM UMR 1037, CRCT, Toulouse, France.,Université Toulouse III - Paul Sabatier, Toulouse, France.,Institut Universitaire du Cancer, Toulouse, France
| | - Nathalie Andrieu-Abadie
- INSERM UMR 1037, CRCT, Toulouse, France.,Equipe Labellisée Ligue Contre Le Cancer, Toulouse, France
| | - Bruno Ségui
- INSERM UMR 1037, CRCT, Toulouse, France.,Equipe Labellisée Ligue Contre Le Cancer, Toulouse, France.,Université Toulouse III - Paul Sabatier, Toulouse, France
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