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Nguyen Van Long F, Valcourt‐Gendron D, Caron P, Rouleau M, Villeneuve L, Simonyan D, Le T, Sergerie R, Laverdière I, Vanura K, Guillemette C. Untargeted metabolomics identifies metabolic dysregulation of sphingolipids associated with aggressive chronic lymphocytic leukaemia and poor survival. Clin Transl Med 2023; 13:e1442. [PMID: 38037464 PMCID: PMC10689972 DOI: 10.1002/ctm2.1442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 09/19/2023] [Accepted: 10/01/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Metabolic dependencies of chronic lymphocytic leukaemia (CLL) cells may represent new personalized treatment approaches in patients harbouring unfavourable features. METHODS Here, we used untargeted metabolomics and lipidomics analyses to isolate metabolomic features associated with aggressive CLL and poor survival outcomes. We initially focused on profiles associated with overexpression of the adverse metabolic marker glycosyltransferase (UGT2B17) associated with poor survival and drug resistance. RESULTS Leukaemic B-cell metabolomes indicated a significant perturbation in lipids, predominantly bio-active sphingolipids. Expression of numerous enzyme-encoding genes of sphingolipid biosynthesis pathways was significantly associated with shorter patient survival. Targeted metabolomics further exposed higher circulating levels of glucosylceramides (C16:0 GluCer) in CLL patients relative to healthy donors and an aggressive cancer biology. In multivariate analyses, C16:0 GluCer and sphinganine were independent prognostic markers and were inversely linked to treatment-free survival. These two sphingolipid species function as antagonistic mediators, with sphinganine being pro-apoptotic and GluCer being pro-proliferative, tested in leukemic B-CLL cell models. Blocking GluCer synthesis using ceramide glucosyltransferase inhibitors induced cell death and reduced the proliferative phenotype, which further sensitized a leukaemic B-cell model to the anti-leukaemics fludarabine and ibrutinib in vitro. CONCLUSIONS Specific sphingolipids may serve as prognostic markers in CLL, and inhibiting enzymatic pathways involved in their biosynthesis has potential as a therapaeutic approach.
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Affiliation(s)
- Flora Nguyen Van Long
- Centre Hospitalier Universitaire de Québec Research Center‐Université Laval (CRCHUQc‐UL)Faculty of Pharmacy and Centre de Recherche sur le Cancer (CRC‐UL)Université LavalQuébecCanada
| | - Délya Valcourt‐Gendron
- Centre Hospitalier Universitaire de Québec Research Center‐Université Laval (CRCHUQc‐UL)Faculty of Pharmacy and Centre de Recherche sur le Cancer (CRC‐UL)Université LavalQuébecCanada
| | - Patrick Caron
- Centre Hospitalier Universitaire de Québec Research Center‐Université Laval (CRCHUQc‐UL)Faculty of Pharmacy and Centre de Recherche sur le Cancer (CRC‐UL)Université LavalQuébecCanada
| | - Michèle Rouleau
- Centre Hospitalier Universitaire de Québec Research Center‐Université Laval (CRCHUQc‐UL)Faculty of Pharmacy and Centre de Recherche sur le Cancer (CRC‐UL)Université LavalQuébecCanada
| | - Lyne Villeneuve
- Centre Hospitalier Universitaire de Québec Research Center‐Université Laval (CRCHUQc‐UL)Faculty of Pharmacy and Centre de Recherche sur le Cancer (CRC‐UL)Université LavalQuébecCanada
| | - David Simonyan
- Statistical and Clinical Research PlatformCRCHUQc‐ULQuébecCanada
| | - Trang Le
- Department of Medicine IDivision of Haematology and HaemostaseologyMedical University of ViennaViennaAustria
| | - Roxanne Sergerie
- Centre Hospitalier Universitaire de Québec Research Center‐Université Laval (CRCHUQc‐UL)Faculty of Pharmacy and Centre de Recherche sur le Cancer (CRC‐UL)Université LavalQuébecCanada
| | - Isabelle Laverdière
- Centre Hospitalier Universitaire de Québec Research Center‐Université Laval (CRCHUQc‐UL)Faculty of Pharmacy and Centre de Recherche sur le Cancer (CRC‐UL)Université LavalQuébecCanada
| | - Katrina Vanura
- Department of Medicine IDivision of Haematology and HaemostaseologyMedical University of ViennaViennaAustria
| | - Chantal Guillemette
- Centre Hospitalier Universitaire de Québec Research Center‐Université Laval (CRCHUQc‐UL)Faculty of Pharmacy and Centre de Recherche sur le Cancer (CRC‐UL)Université LavalQuébecCanada
- Canada Research Chair in PharmacogenomicsQuébecCanada
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Rossi M, Khalifeh M, Fiori F, Parpinel M, Serraino D, Pelucchi C, Negri E, Giacosa A, Crispo A, Collatuzzo G, Hannun Y, Luberto C, La Vecchia C, Boffetta P. Dietary choline and sphingomyelin choline moiety intake and risk of colorectal cancer: a case-control study. Eur J Clin Nutr 2023; 77:905-910. [PMID: 37479807 DOI: 10.1038/s41430-023-01298-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 05/03/2023] [Accepted: 06/05/2023] [Indexed: 07/23/2023]
Abstract
INTRODUCTION Phospholipids are possible favorable agents for colorectal cancer (CRC). Choline has been inversely related to CRC risk but findings are inconsistent. We assessed the effect of dietary sphingomyelin (SM) choline moiety and total choline intake on risk of CRC. METHOD This analysis is based on a multicenter case-control study conducted between 1992 and 1996 in Italy. A total of 6107 subjects were enrolled, including 1225 colon cancer cases, 728 rectal cancer cases and 4154 hospital-based controls. We applied data on the composition of foods in terms of SM choline moiety and choline intake on dietary information collected through a validated food-frequency questionnaire. Odds ratio (OR) for energy-adjusted tertiles of SM choline moiety and choline were estimated through logistic regression models adjusted for sex, age, center, education, alcohol consumption, body mass index, family history of CRC, and physical activity. RESULTS Choline was inversely related to CRC risk (OR for the highest versus the lowest tertile: 0.85; 95% confidence interval [CI]: 0.73-0.99), with a significant trend in risk. The OR for an increment of one standard deviation of energy-adjusted choline intake was 0.93 (95% CI: 0.88-0.98). The association was consistent in colon and rectal cancer and also across colon subsites. SM choline moiety was not associated with CRC risk (OR for the highest versus the lowest tertile: 0.96, 95% CI 0.84-1.11). CONCLUSION This study shows an inverse association between choline intake and CRC but not with SM choline moiety.
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Affiliation(s)
- Marta Rossi
- Department of Clinical Sciences and Community Health, University of Milan, 20133, Milan, Italy
| | - Malak Khalifeh
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY, USA
| | - Federica Fiori
- Department of Medicine, University of Udine, 33100, Udine, Italy
| | - Maria Parpinel
- Department of Medicine, University of Udine, 33100, Udine, Italy
| | - Diego Serraino
- Unit of Cancer Epidemiology, Centro di Riferimento Oncologico, National Cancer Institute IRCCS, 33108, Aviano, Italy
| | - Claudio Pelucchi
- Department of Clinical Sciences and Community Health, University of Milan, 20133, Milan, Italy
| | - Eva Negri
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, Università di Bologna, 40126, Bologna, Italy
| | - Attilio Giacosa
- Department of Gastroenterology and Clinical Nutrition, Policlinico di Monza, 20900, Monza, Italy
| | - Anna Crispo
- Epidemiology and Biostatistics Unit, Istituto Nazionale dei Tumori IRCCS, Fondazione G. Pascale, 80131, Naples, Italy
| | | | - Yusuf Hannun
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY, USA
| | - Chiara Luberto
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY, USA
| | - Carlo La Vecchia
- Department of Clinical Sciences and Community Health, University of Milan, 20133, Milan, Italy
| | - Paolo Boffetta
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY, USA.
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, Università di Bologna, 40126, Bologna, Italy.
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Sun C, Chang X, MacIsaac HJ, Wen J, Zhao L, Dai Z, Li J. Phytosphingosine inhibits cell proliferation by damaging DNA in human cell lines. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 256:114840. [PMID: 37001191 DOI: 10.1016/j.ecoenv.2023.114840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
Harmful cyanobacterial blooms have caused numerous biosecurity incidents owing to the production of hazardous secondary metabolites such as microcystin. Additionally, cyanobacteria also release many other components that have not been explored. We identified compounds of a toxic mixture exudated from a dominant, blooming species, Microcystis aeruginosa, and found that phytosphingosine (PHS) was one of the bioactive components. Since PHS exhibited toxicity and is deemed a hazardous substance by the European Chemicals Agency, we hypothesized that PHS is a potentially toxic compound in M. aeruginosa exudates. However, the mechanisms of PHS ecotoxicity remain unclear. We assessed the cytotoxicity of PHS using an in vitro cell model in eight human cell lines and observed that the nasopharyngeal carcinoma cell line CNE2 was the most sensitive. We exposed CNE2 cells to 0-25 µmol/L PHS for 24 hr to explore its toxicity and mechanism. PHS exposure resulted in abnormal nuclear morphology, micronuclei, and DNA damage. Moreover, PHS significantly inhibited cell proliferation and arrested cell cycle at S phase. The results of Western blot suggested that PHS increased the expression of DNA damage-related proteins (ATM, p-P53 and P21) and decreased the expression of S phase-related proteins (CDK2, CyclinA2 and CyclinE1), indicating the toxicological mechanism of PHS on CNE2 cells. These data provide evidence that PHS has genetic toxicity and inhibits cell proliferation by damaging DNA. Our study provides evidence that PHS inhibits cell proliferation by damaging DNA. While additional work is required, we propose that PHS been considered as a potentially toxic component in MaE in addition to other well-characterized secondary compounds.
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Affiliation(s)
- Chunxiao Sun
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China; Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada
| | - Xuexiu Chang
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada; College of Agronomy and Life Sciences, Kunming University, Kunming 650214, China
| | - Hugh J MacIsaac
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China; College of Agronomy and Life Sciences, Kunming University, Kunming 650214, China
| | - Jiayao Wen
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China
| | - Lixing Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Zhi Dai
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Jiaojiao Li
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China.
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GOLM1 depletion modifies cellular sphingolipid metabolism and adversely affects cell growth. J Lipid Res 2022; 63:100259. [PMID: 35948172 PMCID: PMC9475319 DOI: 10.1016/j.jlr.2022.100259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 11/30/2022] Open
Abstract
Golgi membrane protein 1 (GOLM1) is a Golgi-resident type 2 transmembrane protein known to be overexpressed in several cancers, including hepatocellular carcinoma (HCC), as well as in viral infections. However, the role of GOLM1 in lipid metabolism remains enigmatic. In this study, we employed siRNA-mediated GOLM1 depletion in Huh-7 HCC cells to study the role of GOLM1 in lipid metabolism. Mass spectrometric lipidomic analysis in GOLM1 knockdown cells showed an aberrant accumulation of sphingolipids, such as ceramides, hexosylceramides, dihexosylceramides, sphinganine, sphingosine, and ceramide phosphate, along with cholesteryl esters. Furthermore, we observed a reduction in phosphatidylethanolamines and lysophosphatidylethanolamines. In addition, Seahorse extracellular flux analysis indicated a reduction in mitochondrial oxygen consumption rate upon GOLM1 depletion. Finally, alterations in Golgi structure and distribution were observed both by electron microscopy imaging and immunofluorescence microscopy analysis. Importantly, we found that GOLM1 depletion also affected cell proliferation and cell cycle progression in Huh-7 HCC cells. The Golgi structural defects induced by GOLM1 reduction might potentially affect the trafficking of proteins and lipids leading to distorted intracellular lipid homeostasis, which may result in organelle dysfunction and altered cell growth. In conclusion, we demonstrate that GOLM1 depletion affects sphingolipid metabolism, mitochondrial function, Golgi structure, and proliferation of HCC cells.
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5
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Li Y, Nicholson RJ, Summers SA. Ceramide signaling in the gut. Mol Cell Endocrinol 2022; 544:111554. [PMID: 34998898 PMCID: PMC8828712 DOI: 10.1016/j.mce.2022.111554] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 12/29/2021] [Accepted: 01/03/2022] [Indexed: 11/16/2022]
Abstract
Sphingolipids are essential lipid components in the intestinal epithelial cells (IEC) along the intestinal tract. They play crucial roles in maintaining barrier integrity, regulating nutrient absorption, and acting as signaling molecules to regulate regeneration and differentiation of intestinal mucosa (Kurek et al., 2012). Ceramide is the central sphingolipid species and the precursor of all complex sphingolipids and other downstream simple intermediates like sphingosine (SPH), ceramide-1-phosphate (C-1-P), and sphingosine-1-phosphate (S-1-P). It is also a critical signaling molecule regulating numerous physiologic and pathologic processes. This review will summarize the metabolism of ceramides in the gut and their regulation in inflammatory bowel diseases and colorectal cancer.
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Affiliation(s)
- Ying Li
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, 15 North 2030 East, UT, 84112, Salt Lake City, USA.
| | - Rebekah J Nicholson
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, 15 North 2030 East, UT, 84112, Salt Lake City, USA
| | - Scott A Summers
- Department of Nutrition and Integrative Physiology and the Diabetes and Metabolism Research Center, University of Utah, 15 North 2030 East, UT, 84112, Salt Lake City, USA
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Piazzesi A, Afsar SY, van Echten‐Deckert G. Sphingolipid metabolism in the development and progression of cancer: one cancer's help is another's hindrance. Mol Oncol 2021; 15:3256-3279. [PMID: 34289244 PMCID: PMC8637577 DOI: 10.1002/1878-0261.13063] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 06/17/2021] [Accepted: 07/19/2021] [Indexed: 11/27/2022] Open
Abstract
Cancer development is a multistep process in which cells must overcome a series of obstacles before they can become fully developed tumors. First, cells must develop the ability to proliferate unchecked. Once this is accomplished, they must be able to invade the neighboring tissue, as well as provide themselves with oxygen and nutrients. Finally, they must acquire the ability to detach from the newly formed mass in order to spread to other tissues, all the while evading an immune system that is primed for their destruction. Furthermore, increased levels of inflammation have been shown to be linked to the development of cancer, with sites of chronic inflammation being a common component of tumorigenic microenvironments. In this Review, we give an overview of the impact of sphingolipid metabolism in cancers, from initiation to metastatic dissemination, as well as discussing immune responses and resistance to treatments. We explore how sphingolipids can either help or hinder the progression of cells from a healthy phenotype to a cancerous one.
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Affiliation(s)
- Antonia Piazzesi
- LIMES Institute for Membrane Biology and Lipid BiochemistryUniversity of BonnGermany
| | - Sumaiya Yasmeen Afsar
- LIMES Institute for Membrane Biology and Lipid BiochemistryUniversity of BonnGermany
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7
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Yamashita S, Kinoshita M, Miyazawa T. Dietary Sphingolipids Contribute to Health via Intestinal Maintenance. Int J Mol Sci 2021; 22:7052. [PMID: 34208952 PMCID: PMC8268314 DOI: 10.3390/ijms22137052] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 06/26/2021] [Accepted: 06/26/2021] [Indexed: 12/26/2022] Open
Abstract
As sphingolipids are constituents of the cell and vacuole membranes of eukaryotic cells, they are a critical component acquired from our daily diets. In the present review, we highlight the knowledge regarding how dietary sphingolipids affect our health, particularly our intestinal health. Animal- and plant-derived foods contain, respectively, sphingomyelin (SM) and glucosylceramide (GlcCer) as their representative sphingolipids, and the sphingoid base as a specific structure of sphingolipids also differs depending upon the source and class. For example, sphingosine is predominant among animal sphingolipids, and tri-hydroxy bases are present in free ceramide (Cer) from plants and fungi. Dietary sphingolipids exhibit low absorption ratios; however, they possess various functions. GlcCer facilitates improvements in intestinal impairments, lipid metabolisms, and skin disorders, and SM can exert both similar and different effects compared to those elicited by GlcCer. We discuss the digestion, absorption, metabolism, and function of sphingolipids while focused on the structure. Additionally, we also review old and new classes in the context of current advancements in analytical instruments.
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Affiliation(s)
- Shinji Yamashita
- Department of Life and Food Sciences, Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, Japan;
| | - Mikio Kinoshita
- Department of Life and Food Sciences, Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, Japan;
| | - Teruo Miyazawa
- Food and Biotechnology Platform Promoting Project, New Industry Creation Hatchery Center (NICHe), Tohoku University, Sendai 980-8579, Japan;
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8
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Arita N, Sakamoto R, Tani M. Mitochondrial reactive oxygen species-mediated cytotoxicity of intracellularly accumulated dihydrosphingosine in the yeast Saccharomyces cerevisiae. FEBS J 2020; 287:3427-3448. [PMID: 31944552 DOI: 10.1111/febs.15211] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 11/20/2019] [Accepted: 01/10/2020] [Indexed: 02/06/2023]
Abstract
In eukaryotic cells, the content of sphingoid long-chain bases (LCBs) is generally much lower than that of complex sphingolipids and ceramides, and the quantitative balance of these metabolites in cells is tightly regulated. In the budding yeast Saccharomyces cerevisiae, it has been demonstrated that exogenously added phytosphingosine (PHS) causes a strong growth defect in tryptophan auxotrophic cells, due to delayed uptake of tryptophan from the culture medium; however, the growth inhibitory effect of dihydrosphingosine (DHS) is less than that of PHS in tryptophan auxotrophic cells. Here, we found that, in tryptophan-prototrophic yeast cells, exogenously added DHS is much more toxic than PHS. Exogenously added DHS is converted to PHS, Cers, or LCB 1-phosphates through the action of sphingolipid C4-hydroxylase, Cer synthases, or LCB kinases, respectively; however, suppression of further metabolism of DHS in cells resulted in an increase in the growth inhibitory activity of exogenously added DHS, indicating that DHS itself is causative of the cytotoxicity. The cytotoxicity of DHS was not mediated by Pkh1/2, Sch9, and Ypk1/2 kinases, intracellular targets of LCBs. DHS treatment caused an increase in mitochondria-derived reactive oxygen species, and the cytotoxic effect of DHS was suppressed by depletion of mitochondrial DNA or antioxidant N-acetylcysteine, but enhanced by deletion of SOD1 and SOD2 encoding superoxide dismutases. Thus, collectively, these results indicated that intracellularly accumulated DHS has mitochondrial reactive oxygen species-mediated cytotoxic activity, which is much more potent than that of PHS.
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Affiliation(s)
- Nobuaki Arita
- Department of Chemistry, Faculty of Sciences, Kyushu University, Nishi-ku, Fukuoka, Japan
| | - Risa Sakamoto
- Department of Chemistry, Faculty of Sciences, Kyushu University, Nishi-ku, Fukuoka, Japan
| | - Motohiro Tani
- Department of Chemistry, Faculty of Sciences, Kyushu University, Nishi-ku, Fukuoka, Japan
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9
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Machala M, Procházková J, Hofmanová J, Králiková L, Slavík J, Tylichová Z, Ovesná P, Kozubík A, Vondráček J. Colon Cancer and Perturbations of the Sphingolipid Metabolism. Int J Mol Sci 2019; 20:E6051. [PMID: 31801289 PMCID: PMC6929044 DOI: 10.3390/ijms20236051] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/25/2019] [Accepted: 11/28/2019] [Indexed: 12/20/2022] Open
Abstract
The development and progression of colorectal cancer (CRC), a major cause of cancer-related death in the western world, is accompanied with alterations of sphingolipid (SL) composition in colon tumors. A number of enzymes involved in the SL metabolism have been found to be deregulated in human colon tumors, in experimental rodent studies, and in human colon cancer cells in vitro. Therefore, the enzymatic pathways that modulate SL levels have received a significant attention, due to their possible contribution to CRC development, or as potential therapeutic targets. Many of these enzymes are associated with an increased sphingosine-1-phosphate/ceramide ratio, which is in turn linked with increased colon cancer cell survival, proliferation and cancer progression. Nevertheless, more attention should also be paid to the more complex SLs, including specific glycosphingolipids, such as lactosylceramides, which can be also deregulated during CRC development. In this review, we focus on the potential roles of individual SLs/SL metabolism enzymes in colon cancer, as well as on the pros and cons of employing the current in vitro models of colon cancer cells for lipidomic studies investigating the SL metabolism in CRC.
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Affiliation(s)
- Miroslav Machala
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100 Brno, Czech Republic; (J.P.); (L.K.); (J.S.)
| | - Jiřina Procházková
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100 Brno, Czech Republic; (J.P.); (L.K.); (J.S.)
| | - Jiřina Hofmanová
- Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 61265 Brno, Czech Republic; (J.H.); (Z.T.); (P.O.); (A.K.); (J.V.)
| | - Lucie Králiková
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100 Brno, Czech Republic; (J.P.); (L.K.); (J.S.)
| | - Josef Slavík
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100 Brno, Czech Republic; (J.P.); (L.K.); (J.S.)
| | - Zuzana Tylichová
- Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 61265 Brno, Czech Republic; (J.H.); (Z.T.); (P.O.); (A.K.); (J.V.)
| | - Petra Ovesná
- Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 61265 Brno, Czech Republic; (J.H.); (Z.T.); (P.O.); (A.K.); (J.V.)
- Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Poštovská 68/3, 60200 Brno, Czech Republic
| | - Alois Kozubík
- Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 61265 Brno, Czech Republic; (J.H.); (Z.T.); (P.O.); (A.K.); (J.V.)
| | - Jan Vondráček
- Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 61265 Brno, Czech Republic; (J.H.); (Z.T.); (P.O.); (A.K.); (J.V.)
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Carreira AC, Santos TC, Lone MA, Zupančič E, Lloyd-Evans E, de Almeida RFM, Hornemann T, Silva LC. Mammalian sphingoid bases: Biophysical, physiological and pathological properties. Prog Lipid Res 2019:100995. [PMID: 31445071 DOI: 10.1016/j.plipres.2019.100995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 05/17/2019] [Accepted: 05/20/2019] [Indexed: 12/19/2022]
Abstract
Sphingoid bases encompass a group of long chain amino alcohols which form the essential structure of sphingolipids. Over the last years, these amphiphilic molecules were moving more and more into the focus of biomedical research due to their role as bioactive molecules. In fact, free sphingoid bases interact with specific receptors and target molecules and have been associated with numerous biological and physiological processes. In addition, they can modulate the biophysical properties of biological membranes. Several human diseases are related to pathological changes in the structure and metabolism of sphingoid bases. Yet, the mechanisms underlying their biological and pathophysiological actions remain elusive. Within this review, we aimed to summarize the current knowledge on the biochemical and biophysical properties of the most common sphingoid bases and to discuss their importance in health and disease.
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Affiliation(s)
- A C Carreira
- iMed.ULisboa - Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; Centro de Química e Bioquímica (CQB) e Centro de Química Estrutural (CQE), Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal; Sir Martin Evans Building, School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - T C Santos
- iMed.ULisboa - Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; Centro de Química-Física Molecular - Institute of Nanoscience and Nanotechnology (CQFM-IN) and IBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal; Institute for Clinical Chemistry, University Hospital Zurich, Switzerland; Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Switzerland
| | - M A Lone
- Institute for Clinical Chemistry, University Hospital Zurich, Switzerland; Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Switzerland
| | - E Zupančič
- iMed.ULisboa - Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - E Lloyd-Evans
- Sir Martin Evans Building, School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - R F M de Almeida
- Centro de Química e Bioquímica (CQB) e Centro de Química Estrutural (CQE), Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal
| | - T Hornemann
- Institute for Clinical Chemistry, University Hospital Zurich, Switzerland; Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Switzerland
| | - L C Silva
- iMed.ULisboa - Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; Centro de Química-Física Molecular - Institute of Nanoscience and Nanotechnology (CQFM-IN) and IBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.
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11
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Carreira AC, Santos TC, Lone MA, Zupančič E, Lloyd-Evans E, de Almeida RFM, Hornemann T, Silva LC. Mammalian sphingoid bases: Biophysical, physiological and pathological properties. Prog Lipid Res 2019; 75:100988. [PMID: 31132366 DOI: 10.1016/j.plipres.2019.100988] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 05/17/2019] [Accepted: 05/21/2019] [Indexed: 12/11/2022]
Abstract
Sphingoid bases encompass a group of long chain amino alcohols which form the essential structure of sphingolipids. Over the last years, these amphiphilic molecules were moving more and more into the focus of biomedical research due to their role as bioactive molecules. In fact, free sphingoid bases interact with specific receptors and target molecules, and have been associated with numerous biological and physiological processes. In addition, they can modulate the biophysical properties of biological membranes. Several human diseases are related to pathological changes in the structure and metabolism of sphingoid bases. Yet, the mechanisms underlying their biological and pathophysiological actions remain elusive. Within this review, we aimed to summarize the current knowledge on the biochemical and biophysical properties of the most common sphingoid bases and to discuss their importance in health and disease.
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Affiliation(s)
- A C Carreira
- iMed.ULisboa - Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa 1649-003, Portugal; Centro de Química e Bioquímica (CQB) e Centro de Química Estrutural (CQE), Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, Lisboa 1749-016, Portugal; Sir Martin Evans Building, School of Biosciences, Cardiff University, Cardiff, UK
| | - T C Santos
- iMed.ULisboa - Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa 1649-003, Portugal; Centro de Química-Física Molecular - Institute of Nanoscience and Nanotechnology (CQFM-IN), IBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal; Institute for Clinical Chemistry, University Hospital Zurich, Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Switzerland
| | - M A Lone
- Institute for Clinical Chemistry, University Hospital Zurich, Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Switzerland
| | - E Zupančič
- iMed.ULisboa - Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa 1649-003, Portugal
| | - E Lloyd-Evans
- Sir Martin Evans Building, School of Biosciences, Cardiff University, Cardiff, UK
| | - R F M de Almeida
- Centro de Química e Bioquímica (CQB) e Centro de Química Estrutural (CQE), Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, Lisboa 1749-016, Portugal
| | - T Hornemann
- Institute for Clinical Chemistry, University Hospital Zurich, Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Switzerland
| | - L C Silva
- iMed.ULisboa - Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa 1649-003, Portugal; Centro de Química-Física Molecular - Institute of Nanoscience and Nanotechnology (CQFM-IN), IBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal.
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12
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Charytoniuk T, Harasim-Symbor E, Polak A, Drygalski K, Berk K, Chabowski A, Konstantynowicz-Nowicka K. Influence of Resveratrol on Sphingolipid Metabolism in Hepatocellular Carcinoma Cells in Lipid Overload State. Anticancer Agents Med Chem 2019; 19:121-129. [DOI: 10.2174/1871520619666181224161255] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 05/30/2018] [Accepted: 12/10/2018] [Indexed: 12/12/2022]
Abstract
Background:
Obesity is characterized by increased long chain fatty acids (LCFA) uptake and impaired
lipid metabolism in hepatocytes. Consequently, an enhanced intracellular lipid content, including sphingolipids,
may lead to lipotoxicity. It is believed that resveratrol (RSV), one of the most extensively studied
plant-derived polyphenols, and its interaction with sphingolipid metabolism may constitute one of the major
therapeutic targets for cancer and metabolic diseases treatment.
Objective:
The aim of this study was to ascertain, whether resveratrol may affect sphingolipid metabolic pathways,
enzymes and transporters in a lipid overload state.
Methods:
The experiments were conducted on hepatocellular carcinoma cells (HepG2) incubated with RSV
and/or Palmitic Acid (PA) at the concentration of 0.5 mM and 50 µM, respectively for 16h. Intra- and extracellular
sphingolipid concentrations were assessed by high-performance liquid chromatography and gas liquid
chromatography. Moreover, the expression of caspase 3, selected fatty acid transporters and sphingolipid
metabolism pathway proteins were estimated by Western Blot.
Results:
RSV alone and together with PA significantly increased the intracellular concentration of ceramide,
sphinganine and sphingosine as well as the expression of enzymes related to de novo ceramide synthesis pathway.
Moreover, in our study, we observed augmented ceramide and sphingomyelin efflux into the incubation
media in these groups. In addition, RSV substantially reduced intracellular triacylglycerols accumulation in lipid
overload conditions.
Conclusion:
The above-mentioned findings suggest that RSV, at least partially, demonstrates a potential protective
effect on HepG2 cells in a lipid overload state.
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Affiliation(s)
- Tomasz Charytoniuk
- Department of Physiology, Medical University of Bialystok, Mickiewicza St 2C, 15-222 Bialystok, Poland
| | - Ewa Harasim-Symbor
- Department of Physiology, Medical University of Bialystok, Mickiewicza St 2C, 15-222 Bialystok, Poland
| | - Agnieszka Polak
- Department of Physiology, Medical University of Bialystok, Mickiewicza St 2C, 15-222 Bialystok, Poland
| | - Krzysztof Drygalski
- Department of Physiology, Medical University of Bialystok, Mickiewicza St 2C, 15-222 Bialystok, Poland
| | - Klaudia Berk
- Department of Physiology, Medical University of Bialystok, Mickiewicza St 2C, 15-222 Bialystok, Poland
| | - Adrian Chabowski
- Department of Physiology, Medical University of Bialystok, Mickiewicza St 2C, 15-222 Bialystok, Poland
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13
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Chen J, Hou H, Chen H, Luo Y, Zhang L, Zhang Y, Liu H, Zhang F, Liu Y, Wang A, Hu Q. Urinary metabolomics for discovering metabolic biomarkers of laryngeal cancer using UPLC-QTOF/MS. J Pharm Biomed Anal 2019; 167:83-89. [DOI: 10.1016/j.jpba.2019.01.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/19/2019] [Accepted: 01/21/2019] [Indexed: 12/28/2022]
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14
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Ahuja G, Bartsch D, Yao W, Geissen S, Frank S, Aguirre A, Russ N, Messling JE, Dodzian J, Lagerborg KA, Vargas NE, Muck JS, Brodesser S, Baldus S, Sachinidis A, Hescheler J, Dieterich C, Trifunovic A, Papantonis A, Petrascheck M, Klinke A, Jain M, Valenzano DR, Kurian L. Loss of genomic integrity induced by lysosphingolipid imbalance drives ageing in the heart. EMBO Rep 2019; 20:embr.201847407. [PMID: 30886000 DOI: 10.15252/embr.201847407] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/31/2019] [Accepted: 02/15/2019] [Indexed: 11/09/2022] Open
Abstract
Cardiac dysfunctions dramatically increase with age. Revealing a currently unknown contributor to cardiac ageing, we report the age-dependent, cardiac-specific accumulation of the lysosphingolipid sphinganine (dihydrosphingosine, DHS) as an evolutionarily conserved hallmark of the aged vertebrate heart. Mechanistically, the DHS-derivative sphinganine-1-phosphate (DHS1P) directly inhibits HDAC1, causing an aberrant elevation in histone acetylation and transcription levels, leading to DNA damage. Accordingly, the pharmacological interventions, preventing (i) the accumulation of DHS1P using SPHK2 inhibitors, (ii) the aberrant increase in histone acetylation using histone acetyltransferase (HAT) inhibitors, (iii) the DHS1P-dependent increase in transcription using an RNA polymerase II inhibitor, block DHS-induced DNA damage in human cardiomyocytes. Importantly, an increase in DHS levels in the hearts of healthy young adult mice leads to an impairment in cardiac functionality indicated by a significant reduction in left ventricular fractional shortening and ejection fraction, mimicking the functional deterioration of aged hearts. These molecular and functional defects can be partially prevented in vivo using HAT inhibitors. Together, we report an evolutionarily conserved mechanism by which increased DHS levels drive the decline in cardiac health.
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Affiliation(s)
- Gaurav Ahuja
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Max Planck Institute for Biology of Ageing, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Deniz Bartsch
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Wenjie Yao
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Simon Geissen
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Department of Internal Medicine III, University of Cologne, Cologne, Germany
| | - Stefan Frank
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Aitor Aguirre
- Departments of Medicine & Pharmacology, University of California San Diego, San Diego, CA, USA
| | - Nicole Russ
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Jan-Erik Messling
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Joanna Dodzian
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Max Planck Institute for Biology of Ageing, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Kim A Lagerborg
- Departments of Medicine & Pharmacology, University of California San Diego, San Diego, CA, USA
| | - Natalia Emilse Vargas
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Joscha Sergej Muck
- Max Planck Institute for Biology of Ageing, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Susanne Brodesser
- CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Stephan Baldus
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Department of Internal Medicine III, University of Cologne, Cologne, Germany
| | - Agapios Sachinidis
- Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
| | - Juergen Hescheler
- Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany
| | - Christoph Dieterich
- Department of Internal Medicine III, University Hospital Heidelberg & German Center for Cardiovascular Research (DZHK), Heidelberg, Germany
| | - Aleksandra Trifunovic
- CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Argyris Papantonis
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Department of Pathology, University Medical Center Göttingen, Göttingen, Germany
| | | | - Anna Klinke
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.,Department of Internal Medicine III, University of Cologne, Cologne, Germany
| | - Mohit Jain
- Departments of Medicine & Pharmacology, University of California San Diego, San Diego, CA, USA
| | - Dario Riccardo Valenzano
- Max Planck Institute for Biology of Ageing, Cologne, Germany .,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
| | - Leo Kurian
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany .,Institute for Neurophysiology, Faculty of Medicine and University Hospital, University of Cologne, Cologne, Germany.,CECAD; Cologne Cluster of Excellence in Cellular Stress Responses in Ageing-associated Diseases, University of Cologne, Cologne, Germany
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15
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Ahn EH, Yang H, Hsieh CY, Sun W, Chang CC, Schroeder JJ. Evaluation of chemotherapeutic and cancer-protective properties of sphingosine and C2-ceramide in a human breast stem cell derived carcinogenesis model. Int J Oncol 2018; 54:655-664. [PMID: 30483770 PMCID: PMC6317677 DOI: 10.3892/ijo.2018.4641] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 08/30/2018] [Indexed: 02/07/2023] Open
Abstract
The overall goal of the present study was to evaluate the chemotherapeutic and cancer-protective properties of D-erythro-sphingosine (sphingosine) and C2-ceramide using a human breast epithelial cell (HBEC) culture system, which represents multiple-stages of breast carcinogenesis. The HBEC model includes Type I HBECs (normal stem), Type II HBECs (normal differentiated) and transformed cells (immortal/non-tumorigenic cells and tumorigenic cells, which are transformed from the same parental normal stem cells). The results of the present study indicate that sphingosine preferentially inhibits proliferation and causes death of normal stem cells (Type I), tumorigenic cells, and MCF7 breast cancer cells, but not normal differentiated cells (Type II). In contrast to the selective anti-proliferative effects of sphingosine, C2-ceramide inhibits proliferation of normal differentiated cells as well as normal stem cells, tumorigenic cells, and MCF7 cancer cells with similar potency. Both sphingosine and C2-ceramide induce apoptosis in tumorigenic cells. Among the sphingosine stereoisomers (D-erythro, D-threo, L-erythro, and L-threo) and sphinganine that were tested, L-erythro-sphingosine most potently inhibits proliferation of tumorigenic cells. The inhibition of breast tumorigenic/cancer cell proliferation by sphingosine was accompanied by inhibition of telomerase activity. Sphingosine at non-cytotoxic concentrations, but not C2-ceramide, induces differentiation of normal stem cells (Type I), thereby reducing the number of stem cells that are more susceptible to neoplastic transformation. To the best of our knowledge, the present study demonstrates one of the first results that sphingosine can be a potential chemotherapeutic and cancer-protective agent, whereas C2-ceramide is not an ideal chemotherapeutic and cancer-protective agent due to its anti-proliferative effects on Type II HBECs and its inability to induce the differentiation of Type I to Type II HBECs.
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Affiliation(s)
- Eun Hyun Ahn
- Department of Pathology and 2Institute of Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA 98195, USA
| | - Hong Yang
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
| | - Ching-Yi Hsieh
- Department of Pediatrics and Human Development, Michigan State University, East Lansing, MI 48824, USA
| | - Wei Sun
- Department of Pediatrics and Human Development, Michigan State University, East Lansing, MI 48824, USA
| | - Chia-Cheng Chang
- Department of Pediatrics and Human Development, Michigan State University, East Lansing, MI 48824, USA
| | - Joseph J Schroeder
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
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16
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Rossiana N, Madihah, Nur AA, Mayawatie B, Andayaningsih P. Cytotoxicity Assay of Ethyl Acetate Extract Shimeji (Lyophyllum shimeji (Kawam.) Hongo) and White Oyster Mushroom (Pleurotus ostreatus Jacq.) Against HCT-116 Cell Line. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1755-1315/197/1/012007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Xu R, Garcia-Barros M, Wen S, Li F, Lin CL, Hannun YA, Obeid LM, Mao C. Tumor suppressor p53 links ceramide metabolism to DNA damage response through alkaline ceramidase 2. Cell Death Differ 2017; 25:841-856. [PMID: 29229990 PMCID: PMC5943524 DOI: 10.1038/s41418-017-0018-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 09/20/2017] [Accepted: 10/18/2017] [Indexed: 01/18/2023] Open
Abstract
p53 mediates the DNA damage response (DDR) by regulating the expression of genes implicated in cell cycle arrest, senescence, programmed cell death (PCD), and metabolism. Herein we demonstrate that human alkaline ceramidase 2 (ACER2) is a novel transcriptional target of p53 and that its transactivation by p53 mediates the DDR. We found that p53 overexpression or its activation by ionizing radiation (IR) upregulated ACER2 in cells. Two putative p53 responsive elements (p53REs) were found in its first intron of the ACER2 gene, and Chromatin Immunoprecipitation (ChIP) assays in combination with promoter activity assays demonstrated that these p53REs are the bona fide p53 binding sites that mediate ACER2 transactivation by p53. As ACER2 catalyzes the hydrolysis of ceramides into sphingosine, which in turn is phosphorylated to form sphingosine-1-phosphate (S1P), ACER2 upregulation increased the levels of both sphingosine and S1P while decreasing the levels of ceramides in cells. A moderate upregulation of ACER2 inhibited cell cycle arrest and cellular senescence in response to low-level expression of p53 or low-dose IR by elevating S1P, a pro-proliferative and pro-survival bioactive lipid, and/or decreasing ceramides whereas its robust upregulation mediated PCD in response to high-level expression of p53 or high-dose IR likely by accumulating cellular sphingosine, a pro-death bioactive lipid. ACER2 is frequently inactivated in various cancers due to its deletion or mutations, and restoring its expression inhibited the growth of tumor xenografts in mice. These results suggest that p53 mediates DDR and exerts its tumor suppressive role in part by regulating the expression of ACER2, which in turn regulates the bioactive sphingolipid lipids.
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Affiliation(s)
- Ruijuan Xu
- Department of Medicine, State University of New York (SUNY), Stony Brook, NY, 11794, USA.,Cancer Center at State University of New York (SUNY) at Stony Brook, Stony Brook, NY, 11794, USA
| | - Monica Garcia-Barros
- Department of Medicine, State University of New York (SUNY), Stony Brook, NY, 11794, USA.,Cancer Center at State University of New York (SUNY) at Stony Brook, Stony Brook, NY, 11794, USA
| | - Sally Wen
- Department of Medicine, State University of New York (SUNY), Stony Brook, NY, 11794, USA.,Cancer Center at State University of New York (SUNY) at Stony Brook, Stony Brook, NY, 11794, USA
| | - Fang Li
- Department of Medicine, State University of New York (SUNY), Stony Brook, NY, 11794, USA.,Cancer Center at State University of New York (SUNY) at Stony Brook, Stony Brook, NY, 11794, USA.,Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Chih-Li Lin
- Department of Medicine, State University of New York (SUNY), Stony Brook, NY, 11794, USA.,Cancer Center at State University of New York (SUNY) at Stony Brook, Stony Brook, NY, 11794, USA
| | - Yusuf A Hannun
- Department of Medicine, State University of New York (SUNY), Stony Brook, NY, 11794, USA.,Cancer Center at State University of New York (SUNY) at Stony Brook, Stony Brook, NY, 11794, USA
| | - Lina M Obeid
- Department of Medicine, State University of New York (SUNY), Stony Brook, NY, 11794, USA.,Cancer Center at State University of New York (SUNY) at Stony Brook, Stony Brook, NY, 11794, USA.,Northport Veterans Administration Hospital, Northport, NY, 11768, USA
| | - Cungui Mao
- Department of Medicine, State University of New York (SUNY), Stony Brook, NY, 11794, USA. .,Cancer Center at State University of New York (SUNY) at Stony Brook, Stony Brook, NY, 11794, USA.
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18
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Cingolani F, Simbari F, Abad JL, Casasampere M, Fabrias G, Futerman AH, Casas J. Jaspine B induces nonapoptotic cell death in gastric cancer cells independently of its inhibition of ceramide synthase. J Lipid Res 2017; 58:1500-1513. [PMID: 28572516 DOI: 10.1194/jlr.m072611] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 05/30/2017] [Indexed: 12/22/2022] Open
Abstract
Sphingolipids (SLs) have been extensively investigated in biomedical research due to their role as bioactive molecules in cells. Here, we describe the effect of a SL analog, jaspine B (JB), a cyclic anhydrophytosphingosine found in marine sponges, on the gastric cancer cell line, HGC-27. JB induced alterations in the sphingolipidome, mainly the accumulation of dihydrosphingosine, sphingosine, and their phosphorylated forms due to inhibition of ceramide synthases. Moreover, JB provoked atypical cell death in HGC-27 cells, characterized by the formation of cytoplasmic vacuoles in a time and dose-dependent manner. Vacuoles appeared to originate from macropinocytosis and triggered cytoplasmic disruption. The pan-caspase inhibitor, z-VAD, did not alter either cytotoxicity or vacuole formation, suggesting that JB activates a caspase-independent cell death mechanism. The autophagy inhibitor, wortmannin, did not decrease JB-stimulated LC3-II accumulation. In addition, cell vacuolation induced by JB was characterized by single-membrane vacuoles, which are different from double-membrane autophagosomes. These findings suggest that JB-induced cell vacuolation is not related to autophagy and it is also independent of its action on SL metabolism.
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Affiliation(s)
- Francesca Cingolani
- Research Unit on BioActive Molecules (RUBAM), Department of Biomedicinal Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain.
| | - Fabio Simbari
- Research Unit on BioActive Molecules (RUBAM), Department of Biomedicinal Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain
| | - Jose Luis Abad
- Research Unit on BioActive Molecules (RUBAM), Department of Biomedicinal Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain
| | - Mireia Casasampere
- Research Unit on BioActive Molecules (RUBAM), Department of Biomedicinal Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain
| | - Gemma Fabrias
- Research Unit on BioActive Molecules (RUBAM), Department of Biomedicinal Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain
| | - Anthony H Futerman
- Department of Biological Chemistry, Weizmann Institute of Science, Rehovot, Israel
| | - Josefina Casas
- Research Unit on BioActive Molecules (RUBAM), Department of Biomedicinal Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain.
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19
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Jang Y, Rao X, Jiang Q. Gamma-tocotrienol profoundly alters sphingolipids in cancer cells by inhibition of dihydroceramide desaturase and possibly activation of sphingolipid hydrolysis during prolonged treatment. J Nutr Biochem 2017; 46:49-56. [PMID: 28456081 DOI: 10.1016/j.jnutbio.2017.04.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 03/11/2017] [Accepted: 04/06/2017] [Indexed: 01/10/2023]
Abstract
Vitamin E gamma-tocotrienol (γTE) is known to have anticancer effects, but mechanisms underlying these actions are not clear. Here using liquid chromatography tandem mass spectrometry, we show that γTE induced marked changes of sphingolipids including rapid elevation of dihydrosphingosine and dihydroceramides (dhCers) in various types of cancer cells. The elevation of dihydrosphingolipids coincided with increased cellular stress, as indicated by JNK phosphorylation, and was prior to any sign of induction of apoptosis. Chemically blocking de novo synthesis of sphingolipids partially counteracted γTE-induced apoptosis and autophagy. Experiments using 13C3, 15N-labeled l-serine together with enzyme assays indicate that γTE inhibited cellular dihydroceramide desaturase (DEGS) activity without affecting its protein expression or de novo synthesis of sphingolipids. Unlike the effect on dhCers, γTE decreased ceramides (Cers) after 8-h treatment but increased C18:0-Cer and C16:0-Cer after 16 and 24 h, respectively. The increase of Cers coincides with γTE-induced apoptosis and autophagy. Since γTE inhibits DEGS and decreases de novo Cer synthesis, elevation of Cers during prolonged γTE treatment is likely caused by sphingomeylinase-mediated hydrolysis of sphingomyelin. This idea is supported by the observation that an acid sphingomeylinase inhibitor partially reversed γTE-induced cell death. Our study demonstrates that γTE altered sphingolipid metabolism by inhibiting DEGS activity and possibly by activating SM hydrolysis during prolonged treatment in cancer cells.
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Affiliation(s)
- Yumi Jang
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907
| | - Xiayu Rao
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907
| | - Qing Jiang
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907.
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20
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Cingolani F, Futerman AH, Casas J. Ceramide synthases in biomedical research. Chem Phys Lipids 2015; 197:25-32. [PMID: 26248326 DOI: 10.1016/j.chemphyslip.2015.07.026] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 07/30/2015] [Accepted: 07/31/2015] [Indexed: 01/05/2023]
Abstract
Sphingolipid metabolism consists of multiple metabolic pathways that converge upon ceramide, one of the key molecules among sphingolipids (SLs). In mammals, ceramide synthesis occurs via N-acylation of sphingoid backbones, dihydrosphingosine (dhSo) or sphingosine (So). The reaction is catalyzed by ceramide synthases (CerS), a family of enzymes with six different isoforms, with each one showing specificity towards a restricted group of acyl-CoAs, thus producing ceramides (Cer) and dihydroceramides (dhCer) with different fatty acid chain lengths. A large body of evidence documents the role of both So and dhSo as bioactive molecules, as well as the involvement of dhCer and Cer in physiological and pathological processes. In particular, the fatty acid composition of Cer has different effects in cell biology and in the onset and progression of different diseases. Therefore, modulation of CerS activity represents an attractive target in biomedical research and in finding new treatment modalities. In this review, we discuss functional, structural and biochemical features of CerS and examine CerS inhibitors that are currently available.
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Affiliation(s)
- Francesca Cingolani
- Research Unit on BioActive Molecules (RUBAM), Department of Biomedicinal Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18, 08034 Barcelona, Spain
| | - Anthony H Futerman
- Department of Biological Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Josefina Casas
- Research Unit on BioActive Molecules (RUBAM), Department of Biomedicinal Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18, 08034 Barcelona, Spain.
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21
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Kurek K, Łukaszuk B, Świdnicka-Siergiejko A, Rogalski P, Wróblewski E, Chabowski A, Dąbrowski A, Żendzian-Piotrowska M. Sphingolipid metabolism in colorectal adenomas varies depending on histological architecture of polyps and grade of nuclear dysplasia. Lipids 2015; 50:349-58. [PMID: 25595595 PMCID: PMC4365288 DOI: 10.1007/s11745-014-3987-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 12/17/2014] [Indexed: 12/16/2022]
Abstract
Incidence of colorectal cancer (CRC) is growing worldwide. Pathogenetic mechanisms responsible for its onset and progression need further clarification. Colorectal adenomatous polyps are precancerous lesions with malignant potential dependent on histological architecture and grade of nuclear dysplasia. One of the factors conditioning CRC development are abnormalities in sphingolipid metabolism. The aim of this study was to assess the levels of sphingolipids in human colorectal adenomas. The control group (C, n = 12) consisted of patients with no colonic polyps. The examined group consisted of patients with prior diagnosed colonic polyps, qualified to endoscopic polypectomy. This group was further divided due to histological architecture into tubular adenomas group (TA, n = 10), tubulovillous adenomas with low-grade dysplasia (LGD-TVA, n = 10), and tubulovillous adenomas group with high-grade dysplasia (HGD-TVA, n = 11). In tissue samples, sphingolipd metabolite contents were measured using high performance liquid chromatography (HPLC). In cases of polypoid lesions with low malignancy potential (tubular adenomas), concentration of ceramide, which is characterized by proapoptotic and anti-proliferative properties, increases compared with control group (p < 0.05), whereas content of sphingosine-1-phosphate with anti-apoptotic and stimulating cellular proliferation properties is reduced in comparison with control group (p < 0.05). On the contrary, in cases of more advanced form of adenomatous polyps (tubulovillous adenomas with high-grade dysplasia), the ceramide level decreases compared with control group (p < 0.05) while sphingosine-1-phosphate concentration is elevated (p < 0.05). We found that concentrations of pro-apoptotic ceramide are decreased and pro-proliferative S1P levels are increased in polypoid lesions with high malignancy potential, and it was the opposite in those with low malignancy potential.
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Affiliation(s)
- Krzysztof Kurek
- Department of Physiology, Medical University of Bialystok, ul. Mickiewicza 2C, 15-222, Białystok, Poland,
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22
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Rodriguez-Cuenca S, Barbarroja N, Vidal-Puig A. Dihydroceramide desaturase 1, the gatekeeper of ceramide induced lipotoxicity. Biochim Biophys Acta Mol Cell Biol Lipids 2015; 1851:40-50. [DOI: 10.1016/j.bbalip.2014.09.021] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 09/24/2014] [Accepted: 09/25/2014] [Indexed: 12/25/2022]
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23
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Degagné E, Pandurangan A, Bandhuvula P, Kumar A, Eltanawy A, Zhang M, Yoshinaga Y, Nefedov M, de Jong PJ, Fong LG, Young SG, Bittman R, Ahmedi Y, Saba JD. Sphingosine-1-phosphate lyase downregulation promotes colon carcinogenesis through STAT3-activated microRNAs. J Clin Invest 2014; 124:5368-84. [PMID: 25347472 DOI: 10.1172/jci74188] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 09/25/2014] [Indexed: 12/11/2022] Open
Abstract
Growing evidence supports a link between inflammation and cancer; however, mediators of the transition between inflammation and carcinogenesis remain incompletely understood. Sphingosine-1-phosphate (S1P) lyase (SPL) irreversibly degrades the bioactive sphingolipid S1P and is highly expressed in enterocytes but downregulated in colon cancer. Here, we investigated the role of SPL in colitis-associated cancer (CAC). We generated mice with intestinal epithelium-specific Sgpl1 deletion and chemically induced colitis and tumor formation in these animals. Compared with control animals, mice lacking intestinal SPL exhibited greater disease activity, colon shortening, cytokine levels, S1P accumulation, tumors, STAT3 activation, STAT3-activated microRNAs (miRNAs), and suppression of miR-targeted anti-oncogene products. This phenotype was attenuated by STAT3 inhibition. In fibroblasts, silencing SPL promoted tumorigenic transformation through a pathway involving extracellular transport of S1P through S1P transporter spinster homolog 2 (SPNS2), S1P receptor activation, JAK2/STAT3-dependent miR-181b-1 induction, and silencing of miR-181b-1 target cylindromatosis (CYLD). Colon biopsies from patients with inflammatory bowel disease revealed enhanced S1P and STAT3 signaling. In mice with chemical-induced CAC, oral administration of plant-type sphingolipids called sphingadienes increased colonic SPL levels and reduced S1P levels, STAT3 signaling, cytokine levels, and tumorigenesis, indicating that SPL prevents transformation and carcinogenesis. Together, our results suggest that dietary sphingolipids can augment or prevent colon cancer, depending upon whether they are metabolized to S1P or promote S1P metabolism through the actions of SPL.
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MESH Headings
- Aldehyde-Lyases/biosynthesis
- Aldehyde-Lyases/genetics
- Animals
- Anion Transport Proteins/genetics
- Anion Transport Proteins/metabolism
- Biopsy
- Cell Transformation, Neoplastic/genetics
- Cell Transformation, Neoplastic/metabolism
- Colonic Neoplasms/genetics
- Colonic Neoplasms/metabolism
- Colonic Neoplasms/pathology
- Down-Regulation/genetics
- Gene Deletion
- Gene Expression Regulation, Enzymologic
- Gene Expression Regulation, Neoplastic
- Humans
- Inflammatory Bowel Diseases/genetics
- Inflammatory Bowel Diseases/metabolism
- Lysophospholipids/genetics
- Lysophospholipids/metabolism
- Mice
- Mice, Transgenic
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Neoplasm Proteins/genetics
- Neoplasm Proteins/metabolism
- Neoplasms, Experimental/genetics
- Neoplasms, Experimental/metabolism
- Neoplasms, Experimental/pathology
- RNA, Neoplasm/genetics
- RNA, Neoplasm/metabolism
- STAT3 Transcription Factor/genetics
- STAT3 Transcription Factor/metabolism
- Signal Transduction/genetics
- Sphingosine/analogs & derivatives
- Sphingosine/genetics
- Sphingosine/metabolism
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24
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Celasco G, Moro L, Aiello C, Mangano K, Milasi A, Quattrocchi C, DI Marco R. Calcium butyrate: Anti-inflammatory effect on experimental colitis in rats and antitumor properties. Biomed Rep 2014; 2:559-563. [PMID: 24944808 DOI: 10.3892/br.2014.273] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 03/25/2014] [Indexed: 12/26/2022] Open
Abstract
Butyric acid is a physiological component of the colonic environment that possesses anti-inflammatory and antitumor properties, among others. However, little is known regarding its effects following direct application on the colonic surface. This study was conducted to investigate the topical anti-inflammatory effect of calcium butyrate in chemically-induced colitis in rats and to evaluate its antitumor properties in vivo and in vitro. The anti-inflammatory activity of calcium butyrate was evaluated in dinitrobenzene sulfonic acid-induced colitis in rats, following intracolonic instillation for 6 consecutive days and its in vivo antitumor activity was evaluated in F344 rats with the azoxymethane (AOM)-induced aberrant crypt foci (AFC) test, following intracolonic instillation for 4 weeks. The in vitro antiproliferative activity was assessed by incubation for 48 h with the HT29, SW620 and HCT116 intestinal tumour cell lines to evaluate the rate of 3H-thymidine uptake. In dinitrobenzene-induced colitis, the intracolonic instillation of calcium butyrate completely prevented body weight reduction in the animals and counteracted the local noxious effects of the irritant by reducing colon edema (-22.7%, P=0.048) and the area of mucosal damage (-48%, P=0.045). In the AOM-induced AFC test, the intracolonic instillation of calcium butyrate significantly reduced the number of AFC in the entire colon (-22.7%, P<0.05). Calcium butyrate, following incubation with the HT29, SW620 and HCT116 tumour cell lines, induced a significant antiproliferative, dose-dependent effect (P=0.046 to P=0.002) in all three strains, as measured by the reduction in 3H-thymidine uptake. Calcium butyrate directly applied to the mucosa of the rat colon was able to ameliorate colonic inflammation, suggesting a possible beneficial role in the treatment of inflammatory colon diseases. Moreover, calcium butyrate exhibited notable antitumor effects in vivo and in vitro; however, their clinical relevance requires confirmation by additional clinical investigations.
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Affiliation(s)
| | | | | | - Katia Mangano
- Cosmo R&D S.p.A., Catania Laboratory, Catania, Italy
| | - Angela Milasi
- Cosmo R&D S.p.A., Catania Laboratory, Catania, Italy
| | | | - Roberto DI Marco
- Cosmo R&D S.p.A., Catania Laboratory, Catania, Italy ; Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
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25
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Sphingosine kinase 1 promotes malignant progression in colon cancer and independently predicts survival of patients with colon cancer by competing risk approach in South asian population. Clin Transl Gastroenterol 2014; 5:e51. [PMID: 24572701 PMCID: PMC3940836 DOI: 10.1038/ctg.2013.21] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 12/11/2013] [Accepted: 12/19/2013] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVES Sphingosine kinase 1 (SphK1) phosphorylates the membrane sphingolipid, sphingosine, to sphingosine-1-phosphate (S1P), an oncogenic mediator, which drives tumor cell growth and survival. Although SphK1 has gained increasing prominence as an oncogenic determinant in several cancers, its potential as a therapeutic target in colon cancer remains uncertain. We investigated the clinical relevance of SphK1 expression in colon cancer as well as its inhibitory effects in vitro. METHODS SphK1 expression in human colon tumor tissues was determined by immunohistochemistry and its clinicopathological significance was ascertained in 303 colon cancer cases. The effects of SphK1 inhibition on colon cancer cell viability and the phosphoinositide 3-kinase (PI3K)/Akt cell survival pathway were investigated using a SphK1-selective inhibitor-compound 5c (5c). The cytotoxicity of a novel combination using SphK1 inhibition with the chemotherapeutic drug, 5-fluorouracil (5-FU), was also determined. RESULTS High SphK1 expression correlated with advanced tumor stages (AJCC classification). Using a competing risk analysis model to take into account disease recurrence, we found that SphK1 is a significant independent predictor for mortality in colon cancer patients. In vitro, the inhibition of SphK1 induced cell death in colon cancer cell lines and attenuated the serum-dependent PI3K/Akt signaling. Inhibition of SphK1 also enhanced the sensitivity of colon cancer cells to 5-FU. CONCLUSION Our findings highlight the impact of SphK1 in colon cancer progression and patient survival, and provide evidence supportive of further development in combination strategies that incorporate SphK1 inhibition with current chemotherapeutic agents to improve colon cancer outcomes.
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26
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García-Barros M, Coant N, Truman JP, Snider AJ, Hannun YA. Sphingolipids in colon cancer. Biochim Biophys Acta Mol Cell Biol Lipids 2013; 1841:773-82. [PMID: 24060581 DOI: 10.1016/j.bbalip.2013.09.007] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 09/12/2013] [Accepted: 09/16/2013] [Indexed: 01/28/2023]
Abstract
Colorectal cancer is one of the major causes of death in the western world. Despite increasing knowledge of the molecular signaling pathways implicated in colon cancer, therapeutic outcomes are still only moderately successful. Sphingolipids, a family of N-acyl linked lipids, have not only structural functions but are also implicated in important biological functions. Ceramide, sphingosine and sphingosine-1-phosphate are the most important bioactive lipids, and they regulate several key cellular functions. Accumulating evidence suggests that many cancers present alterations in sphingolipids and their metabolizing enzymes. The aim of this review is to discuss the emerging roles of sphingolipids, both endogenous and dietary, in colon cancer and the interaction of sphingolipids with WNT/β-catenin pathway, one of the most important signaling cascades that regulate development and homeostasis in intestine. This article is part of a Special Issue entitled New Frontiers in Sphingolipid Biology.
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Affiliation(s)
- Mónica García-Barros
- Department of Medicine and the Stony Brook Cancer Center, Health Science Center, Stony Brook University, 101 Nicolls Road, T15, 023, 11794, Stony Brook, NY, USA.
| | - Nicolas Coant
- Department of Medicine and the Stony Brook Cancer Center, Health Science Center, Stony Brook University, 101 Nicolls Road, T15, 023, 11794, Stony Brook, NY, USA.
| | - Jean-Philip Truman
- Department of Medicine and the Stony Brook Cancer Center, Health Science Center, Stony Brook University, 101 Nicolls Road, T15, 023, 11794, Stony Brook, NY, USA.
| | - Ashley J Snider
- VAMC Northport, 79 Middleville Road, Northport, NY, USA, Health Science Center, Stony Brook University, Stony Brook, NY, USA.
| | - Yusuf A Hannun
- Department of Medicine and the Stony Brook Cancer Center, Health Science Center, Stony Brook University, 101 Nicolls Road, T15, 023, 11794, Stony Brook, NY, USA.
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27
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Holliday Jr. MW, Cox SB, Kang MH, Maurer BJ. C22:0- and C24:0-dihydroceramides confer mixed cytotoxicity in T-cell acute lymphoblastic leukemia cell lines. PLoS One 2013; 8:e74768. [PMID: 24040340 PMCID: PMC3767634 DOI: 10.1371/journal.pone.0074768] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Accepted: 08/06/2013] [Indexed: 02/03/2023] Open
Abstract
We previously reported that fenretinide (4-HPR) was cytotoxic to acute lymphoblastic leukemia (ALL) cell lines in vitro in association with increased levels of de novo synthesized dihydroceramides, the immediate precursors of ceramides. However, the cytotoxic potentials of native dihydroceramides have not been defined. Therefore, we determined the cytotoxic effects of increasing dihydroceramide levels via de novo synthesis in T-cell ALL cell lines and whether such cytotoxicity was dependent on an absolute increase in total dihydroceramide mass versus an increase of certain specific dihydroceramides. A novel method employing supplementation of individual fatty acids, sphinganine, and the dihydroceramide desaturase-1 (DES) inhibitor, GT-11, was used to increase de novo dihydroceramide synthesis and absolute levels of specific dihydroceramides and ceramides. Sphingolipidomic analyses of four T-cell ALL cell lines revealed strong positive correlations between cytotoxicity and levels of C22:0-dihydroceramide (ρ = 0.74–0.81, P ≤ 0.04) and C24:0-dihydroceramide (ρ = 0.84–0.90, P ≤ 0.004), but not between total or other individual dihydroceramides, ceramides, or sphingoid bases or phosphorylated derivatives. Selective increase of C22:0- and C24:0-dihydroceramide increased level and flux of autophagy marker, LC3B-II, and increased DNA fragmentation (TUNEL assay) in the absence of an increase of reactive oxygen species; pan-caspase inhibition blocked DNA fragmentation but not cell death. C22:0-fatty acid supplemented to 4-HPR treated cells further increased C22:0-dihydroceramide levels (P ≤ 0.001) and cytotoxicity (P ≤ 0.001). These data demonstrate that increases of specific dihydroceramides are cytotoxic to T-cell ALL cells by a caspase-independent, mixed cell death mechanism associated with increased autophagy and suggest that dihydroceramides may contribute to 4-HPR-induced cytotoxicity. The targeted increase of specific acyl chain dihydroceramides may constitute a novel anticancer approach.
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Affiliation(s)
- Michael W. Holliday Jr.
- School of Medicine Cancer Center, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
| | - Stephen B. Cox
- Research and Testing Laboratory, Lubbock, Texas, United States of America
| | - Min H. Kang
- School of Medicine Cancer Center, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
- Departments of Cell Biology & Biochemistry and Pharmacology, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
| | - Barry J. Maurer
- School of Medicine Cancer Center, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
- Departments of Cell Biology & Biochemistry, Pediatrics and Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America
- * E-mail:
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28
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Lee YM, Lim C, Lee HS, Shin YK, Shin KO, Lee YM, Kim S. Synthesis and Biological Evaluation of a Polyyne-Containing Sphingoid Base Probe as a Chemical Tool. Bioconjug Chem 2013; 24:1324-31. [DOI: 10.1021/bc300684q] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Yun Mi Lee
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu,
Seoul 151-742, Korea
| | - Chaemin Lim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu,
Seoul 151-742, Korea
| | - Hun Seok Lee
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu,
Seoul 151-742, Korea
| | - Young Kee Shin
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu,
Seoul 151-742, Korea
| | - Kyong-Oh Shin
- College
of Pharmacy and MRC, Chungbuk National University, Cheongju 361-763, Korea
| | - Yong-Moon Lee
- College
of Pharmacy and MRC, Chungbuk National University, Cheongju 361-763, Korea
| | - Sanghee Kim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu,
Seoul 151-742, Korea
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29
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Zanabria R, Tellez AM, Griffiths M, Corredig M. Milk fat globule membrane isolate induces apoptosis in HT-29 human colon cancer cells. Food Funct 2013; 4:222-30. [DOI: 10.1039/c2fo30189j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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30
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Rozema E, Popescu R, Sonderegger H, Huck CW, Winkler J, Krupitza G, Urban E, Kopp B. Characterization of glucocerebrosides and the active metabolite 4,8-sphingadienine from Arisaema amurense and Pinellia ternata by NMR and CD spectroscopy and ESI-MS/CID-MS. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:7204-7210. [PMID: 22769731 DOI: 10.1021/jf302085u] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Sphingolipid metabolites regulate cellular processes such as cell proliferation, differentiation, and apoptosis. In this study, glucocerebrosides (GluCer) from rhizomes of Arisaema amurense and Pinellia ternata were fully characterized using 1- and 2-dimensional nuclear magnetic spin resonance (NMR) and circular dichroism (CD) spectroscopy and tandem collision-induced dissociation mass spectrometry (ESI-MS/CID-MS). Three new acylated and seven known GluCer were elucidated with 4,8-sphingadienine (4,8-SD, d18:2) as backbone. 4,8-SD is a metabolite after enzymatical hydrolysis of GluCer in the gut lumen. In this study, 4,8-SD was hydrolyzed from GluCer and chromatographically purified on silica gel. In contrast to the GluCer, 4,8-SD showed cytotoxic effects in the WST-1 assay. GluCer with 4,8-SD as sphingoid backbone are present in plants consumed as food, such as spinach, soy, and eggplant.
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Affiliation(s)
- Evelien Rozema
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
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31
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Kumar A, Pandurangan AK, Lu F, Fyrst H, Zhang M, Byun HS, Bittman R, Saba JD. Chemopreventive sphingadienes downregulate Wnt signaling via a PP2A/Akt/GSK3β pathway in colon cancer. Carcinogenesis 2012; 33:1726-35. [PMID: 22581840 DOI: 10.1093/carcin/bgs174] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Sphingadienes (SDs) derived from soy and other natural sphingolipids are cytotoxic to colon cancer cells via an Akt-dependent mechanism and reduce adenoma formation in Apc(Min/+) mice. Wnt signaling is fundamental to colon carcinogenesis and is the basis for spontaneous tumorigenesis in Apc(Min/+) mice and patients with familial adenomatous polyposis. In the present study, we investigated the impact of SDs on Wnt signaling. Oral SD administration reduced levels of active β-catenin and Wnt targets c-Myc and cyclin D1 in Apc(Min/+) mouse intestinal tissues. Colon cancer cells treated with SDs exhibited reduced Wnt transcriptional activity, as well as reduced nuclear β-catenin localization and subsequent reduction in active-β-catenin levels. Further, we observed a decrease in phosphorylated (inactive) GSK3β in SD-treated mice and colon cancer cells. Expression of constitutively active myristoylated-Akt or inactivation of GSK3β using LiCl attenuated SD-mediated inhibition of Wnt transcriptional activity and active-β-catenin levels. SDs exhibited additive effects with inhibitors of the phosphatidylinositol-3-kinase/Akt/mTOR pathway to induce cytotoxicity. Further, a combination regime of SDs and low-dose rapamycin decreased visible polyps in Apc(Min/+) mice and reduced the levels of Wnt target gene expression and mTOR target activation. SD-mediated inhibition of Akt and Wnt pathways and cytotoxicity in colon cancer cells was dependent upon the activity of protein phosphatase 2A, as shown by reversal of these effects by pretreatment with okadaic acid or calyculin A. Our cumulative findings indicate that SDs inhibit Wnt signaling through a protein phosphatase 2A/Akt/GSK3β-dependent mechanism that may contribute to their chemopreventive effects in intestinal tumorigenesis.
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Affiliation(s)
- Ashok Kumar
- Center for Cancer Research, Children's Hospital Oakland Research Institute, Oakland, CA 94609, USA
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32
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Spassieva SD, Rahmaniyan M, Bielawski J, Clarke CJ, Kraveka JM, Obeid LM. Cell density-dependent reduction of dihydroceramide desaturase activity in neuroblastoma cells. J Lipid Res 2012; 53:918-928. [PMID: 22377532 DOI: 10.1194/jlr.m019075] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
We applied a metabolic approach to investigate the role of sphingolipids in cell density-induced growth arrest in neuroblastoma cells. Our data revealed that sphingolipid metabolism in neuroblastoma cells significantly differs depending on the cells' population context. At high cell density, cells exhibited G0/G1 cell-cycle arrest and reduced ceramide, monohexosylceramide, and sphingomyelin, whereas dihydroceramide was significantly increased. In addition, our metabolic-labeling experiments showed that neuroblastoma cells at high cell density preferentially synthesized very long chain (VLC) sphingolipids and dramatically decreased synthesis of sphingosine-1-phosphate (S1P). Moreover, densely populated neuroblastoma cells showed increased message levels of both anabolic and catabolic enzymes of the sphingolipid pathway. Notably, our metabolic-labeling experiments indicated reduced dihydroceramide desaturase activity at confluence, which was confirmed by direct measurement of dihydroceramide desaturase activity in situ and in vitro. Importantly, we could reduce dihydroceramide desaturase activity in low-density cells by applying conditional media from high-density cells, as well as by adding reducing agents, such as DTT and L-cysteine to the media. In conclusion, our data suggest a role of the sphingolipid pathway, dihydroceramides desaturase in particular, in confluence-induced growth arrest in neuroblastoma cells.
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Affiliation(s)
- Stefka D Spassieva
- Department of Medicine, Medical University of South Carolina, Charleston, SC 29425
| | - Mehrdad Rahmaniyan
- Department of Pediatrics Division of Hematology/Oncology, Medical University of South Carolina, Charleston, SC 29425; and
| | - Jacek Bielawski
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425; and
| | - Christopher J Clarke
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425; and
| | - Jacqueline M Kraveka
- Department of Pediatrics Division of Hematology/Oncology, Medical University of South Carolina, Charleston, SC 29425; and
| | - Lina M Obeid
- Department of Medicine, Medical University of South Carolina, Charleston, SC 29425; Division of General Internal Medicine, Ralph H. Johnson Veterans Affairs Hospital, Charleston, SC 29401.
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33
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Gault CR, Obeid LM. Still benched on its way to the bedside: sphingosine kinase 1 as an emerging target in cancer chemotherapy. Crit Rev Biochem Mol Biol 2011; 46:342-51. [PMID: 21787121 DOI: 10.3109/10409238.2011.597737] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
For several decades, lipid biologists have investigated how sphingolipids contribute to physiology, cell biology, and cell fate. Foremost among these discoveries is the finding that the bioactive sphingolipids ceramide, sphingosine, and sphingosine-1-phosphate (S1P) have diverse and often opposing effects on cell fate. Interestingly, these bioactive sphingolipids can be interconverted by just a few enzymatic reactions. Therefore, much attention has been paid to the enzymes which govern these reactions with a disproportionate amount of focus on the enzyme sphingosine kinase 1 (SK1). Several studies have found that tissue expression of SK1 correlates with cancer stage, chemotherapy response, and tumor aggressiveness. In addition, overexpression of SK1 in multiple cancer cell lines increases their resistance to chemotherapy, promotes proliferation, allows for anchorage independent growth, and increases local angiogenesis. Inhibition of SK1 using either pharmacological inhibitors or by crossing SK1 null mice has shown promise in many xenograft models of cancer, as well as several genetic and chemically induced mouse models of carcinogenesis. Here, we review the majority of the evidence that suggests SK1 is a promising target for the prevention and/or treatment of various cancers. Also, we strongly advocate for further research into basic mechanisms of bioactive sphingolipid signaling, and an increased focus on the efficacy of SK inhibitors in non-xenograft models of cancer progression.
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Affiliation(s)
- Christopher R Gault
- Department of Medicine, Medical University of South Carolina, Charleston, SC 29425-7790, USA
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Mills S, Ross R, Hill C, Fitzgerald G, Stanton C. Milk intelligence: Mining milk for bioactive substances associated with human health. Int Dairy J 2011. [DOI: 10.1016/j.idairyj.2010.12.011] [Citation(s) in RCA: 165] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Jiang Q, Rao X, Kim CY, Freiser H, Zhang Q, Jiang Z, Li G. Gamma-tocotrienol induces apoptosis and autophagy in prostate cancer cells by increasing intracellular dihydrosphingosine and dihydroceramide. Int J Cancer 2011; 130:685-93. [PMID: 21400505 DOI: 10.1002/ijc.26054] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Accepted: 02/14/2011] [Indexed: 02/05/2023]
Abstract
Although cell-based studies have shown that γ-tocotrienol (γTE) exhibits stronger anticancer activities than other forms of vitamin E including γ-tocopherol (γT), the molecular bases underlying γTE-exerted effects remains to be elucidated. Here we showed that γTE treatment promoted apoptosis, necrosis and autophagy in human prostate PC-3 and LNCaP cancer cells. In search of potential mechanisms of γTE-provoked effects, we found that γTE treatment led to marked increase of intracellular dihydroceramide and dihydrosphingosine, the sphingolipid intermediates in de novo sphingolipid synthesis pathway but had no effects on ceramide or sphingosine. The elevation of these sphingolipids by γTE preceded or coincided with biochemical and morphological signs of cell death and was much more pronounced than that induced by γT, which accompanied with much higher cellular uptake of γTE than γT. The importance of sphingolipid accumulation in γTE-caused fatality was underscored by the observation that dihydrosphingosine and dihydroceramide potently reduced the viability of both prostate cell lines and LNCaP cells, respectively. In addition, myriosin, a specific inhibitor of de novo sphingolipid synthesis, counteracted γTE-induced cell death. In agreement with these cell-based studies, γTE inhibited LNCaP xenograft growth by 53% (p < 0.05), compared to 33% (p = 0.07) by γT, in nude mice. These findings provide a molecular basis of γTE-stimulated cancer cell death and support the notion that elevation of intracellular dihydroceramide and dihydrosphingosine is likely a novel anticancer mechanism.
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Affiliation(s)
- Qing Jiang
- Department of Foods and Nutrition, Interdepartmental Nutrition Program, Purdue University, West Lafayette, IN 47907, USA.
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Lee S, Lee S, Park HJ, Lee SK, Kim S. Design and synthesis of pyrrolidine-containing sphingomimetics. Org Biomol Chem 2011; 9:4580-6. [DOI: 10.1039/c1ob05324h] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Mao Z, Sun W, Xu R, Novgorodov S, Szulc ZM, Bielawski J, Obeid LM, Mao C. Alkaline ceramidase 2 (ACER2) and its product dihydrosphingosine mediate the cytotoxicity of N-(4-hydroxyphenyl)retinamide in tumor cells. J Biol Chem 2010; 285:29078-90. [PMID: 20628055 PMCID: PMC2937939 DOI: 10.1074/jbc.m110.105296] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2010] [Revised: 07/09/2010] [Indexed: 11/06/2022] Open
Abstract
Increased generation of dihydrosphingosine (DHS), a bioactive sphingolipid, has been implicated in the cytotoxicity of the synthetic retinoid N-(4-hydroxyphenyl)retinamide (4-HPR) in tumor cells. However, how 4-HPR increases DHS remains unclear. Here we demonstrate that 4-HPR increases the expression of ACER2, which catalyzes the hydrolysis of dihydroceramides to generate DHS, and that ACER2 up-regulation plays a key role in mediating the 4-HPR-induced generation of DHS as well as the cytotoxicity of 4-HPR in tumor cells. Treatment with 4-HPR induced the accumulation of dihydroceramides (DHCs) in tumor cells by inhibiting dihydroceramide desaturase (DES) activity, which catalyzes the conversion of DHCs to ceramides. Treatment with 4-HPR also increased ACER2 expression through a retinoic acid receptor-independent and caspase-dependent manner. Overexpression of ACER2 augmented the 4-HPR-induced generation of DHS as well as 4-HPR cytotoxicity, and 4-HPR-induced death in tumor cells, whereas knocking down ACER2 had the opposite effects. ACER2 overexpression, along with treatment with GT11, another DES inhibitor, markedly increased cellular DHS, leading to tumor cell death, whereas ACER2 overexpression or GT11 treatment alone failed to do so, suggesting that both ACER2 up-regulation and DES inhibition are necessary and sufficient to mediate 4-HPR-induced DHS accumulation, cytotoxicity, and death in tumor cells. Taken together, these results suggest that up-regulation of the ACER2/DHS pathway mediates the cytotoxicity of 4-HPR in tumor cells and that up-regulating or activating ACER2 may improve the anti-cancer activity of 4-HRR and other DHC-inducing agents.
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Affiliation(s)
| | - Wei Sun
- From the Department of Medicine and
| | | | | | - Zdzislaw M. Szulc
- the Department of Biochemistry and Molecular Biology, Medical University of South Carolina and
| | - Jacek Bielawski
- the Department of Biochemistry and Molecular Biology, Medical University of South Carolina and
| | - Lina M. Obeid
- From the Department of Medicine and
- the Department of Biochemistry and Molecular Biology, Medical University of South Carolina and
- the Ralph H. Johnson Veterans Administration Hospital, Charleston, South Carolina 29425
| | - Cungui Mao
- From the Department of Medicine and
- the Department of Biochemistry and Molecular Biology, Medical University of South Carolina and
- the Ralph H. Johnson Veterans Administration Hospital, Charleston, South Carolina 29425
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Ekiz HA, Baran Y. Therapeutic applications of bioactive sphingolipids in hematological malignancies. Int J Cancer 2010; 127:1497-506. [DOI: 10.1002/ijc.25478] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Sandjo LP, Tchoukoua A, Ntede HN, Yemloul M, Perspicace E, Keumedjio F, Couty F, Kirsch G, Ngadjui BT. New Nortriterpenoid and Ceramides From Stems and Leaves of Cultivated Triumfetta cordifolia A Rich (Tiliaceae). J AM OIL CHEM SOC 2010. [DOI: 10.1007/s11746-010-1584-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Furuya H, Ide Y, Hamamoto M, Asanuma N, Hino T. Isolation of a novel bacterium, Blautia glucerasei sp. nov., hydrolyzing plant glucosylceramide to ceramide. Arch Microbiol 2010; 192:365-72. [DOI: 10.1007/s00203-010-0566-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Revised: 03/03/2010] [Accepted: 03/10/2010] [Indexed: 10/19/2022]
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Cho J, Lee YM, Kim D, Kim S. Design and Synthesis of Piperidine-Containing Sphingoid Base Analogues. J Org Chem 2009; 74:3900-4. [DOI: 10.1021/jo900378h] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jihee Cho
- College of Pharmacy, Seoul National University, San 56-1, Shilim, Kwanak, Seoul 151−742, Korea
| | - Yun Mi Lee
- College of Pharmacy, Seoul National University, San 56-1, Shilim, Kwanak, Seoul 151−742, Korea
| | - Deukjoon Kim
- College of Pharmacy, Seoul National University, San 56-1, Shilim, Kwanak, Seoul 151−742, Korea
| | - Sanghee Kim
- College of Pharmacy, Seoul National University, San 56-1, Shilim, Kwanak, Seoul 151−742, Korea
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Hu Y, Le Leu RK, Belobrajdic D, Young GP. The potential of sphingomyelin as a chemopreventive agent in AOM-induced colon cancer model: wild-type and p53+/- mice. Mol Nutr Food Res 2008; 52:558-66. [PMID: 18324704 DOI: 10.1002/mnfr.200700258] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A protective effect of sphingolipids on colorectal cancer (CRC) has been reported in certain mouse strains. It is unknown if sphingolipids are protective in a p53 deficiency mouse model of CRC. This study investigated the effect of sphingomyelin (SM) on intestinal sphingomyelinase (SMase) activity, colonic epithelial biology and azoxymethane (AOM)-induced CRC. Groups of wild-type (C57BL/6J) and p53+/- mice were fed 0.1% SM diet for 4 wk, administered a single AOM injection and then killed 6 h later to measure apoptosis and proliferation. Separately, both mouse types were fed 0.05% SM diet, administered three AOM injections and killed 33-38 wk later to measure tumour formation. SM significantly increased SMase activity and reduced proliferation (p < 0.05) in wild-type and p53+/- mice. SM did not regulate baseline apoptosis, apoptotic response to AOM or apoptosis in tumours, nor did it restore defective apoptosis in p53+/- mice. There was a nonsignificant trend to reduced tumour incidence with SM in wild-type (p = 0.15) and p53+/- (p = 0.12) mice. In conclusion, while increasing intestinal SMase activity and suppressing proliferation, SM did not promote any form of apoptosis and failed to achieve significant protection in these mice. Further investigation to understand the variable effect of SM in preventing CRC is warranted.
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Affiliation(s)
- Ying Hu
- Department of Medicine, Flinders University of South Australia, Bedford Park, Australia.
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Munoz-Olaya JM, Matabosch X, Bedia C, Egido-Gabás M, Casas J, Llebaria A, Delgado A, Fabriàs G. Synthesis and biological activity of a novel inhibitor of dihydroceramide desaturase. ChemMedChem 2008; 3:946-53. [PMID: 18236489 DOI: 10.1002/cmdc.200700325] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A novel mechanism-based dihydroceramide desaturase inhibitor (XM462) in which the substrate C5 methylene group is replaced by a sulfur atom is reported. Dihydroceramide desaturase inhibition occurred both in vitro and in cultured cells with IC(50) values of 8.2 and 0.78 microM, respectively, at a substrate concentration of 10 microM. In vitro experiments showed that XM462 produced a mixed-type inhibition (K(i)=2 microM, alpha=0.83). LC-MS analyses showed that accumulation of endogenous dihydroceramides occurred in cells upon treatment with XM462 in serum-free medium, whereas ceramides built up in controls. In addition, XM462 was found to be metabolised to its 1-glucosyl and 1-phosphocholine derivatives, and to the products of N-deacylation and reacylation with palmitoyl and stearoyl groups. In Jurkat A3 cells cultured in serum-free medium, viability, as the percentage of trypan blue unstained cells in total cells, was reduced upon XM462 treatment (5 microM, 24 h), but not in controls. The interest of this compound is discussed.
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Affiliation(s)
- Jose M Munoz-Olaya
- Research Unit on BioActive Molecules, Departamento de Química Orgánica Biológica, Instituto de Investigaciones Químicas y Ambientales de Barcelona, CSIC, Jordi Girona 18, 08034 Barcelona, Spain
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Zhang X, Li B, Zhang Y, Liu J. Ceramide induces release of mitochondrial proapoptotic proteins in caspase-dependent and -independent manner in HT-29 cells. ACTA ACUST UNITED AC 2008; 51:66-71. [DOI: 10.1007/s11427-008-0015-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2007] [Accepted: 11/07/2007] [Indexed: 10/22/2022]
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Megha, Sawatzki P, Kolter T, Bittman R, London E. Effect of ceramide N-acyl chain and polar headgroup structure on the properties of ordered lipid domains (lipid rafts). BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2007; 1768:2205-12. [PMID: 17574203 DOI: 10.1016/j.bbamem.2007.05.007] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2006] [Revised: 04/30/2007] [Accepted: 05/07/2007] [Indexed: 01/10/2023]
Abstract
Ceramides are sphingolipids that greatly stabilize ordered membrane domains (lipid rafts), and displace cholesterol from them. Ceramide-rich rafts have been implicated in diverse biological processes. Because ceramide analogues have been useful for probing the biological function of ceramide, and may have biomedical applications, it is important to characterize how ceramide structure affects membrane properties, including lipid raft stability and composition. In this report, fluorescence quenching assays were used to evaluate the effect of analogues of ceramide with different N-acyl chains or different sphingoid backbones on raft stability and sterol content. The effect of replacing 18 mol% of sphingomyelin (SM) with ceramide in vesicles composed of a 1:1 (mol:mol) mixture of SM and dioleoylphosphatidylcholine (DOPC), with or without 25 mol% sterol, was examined. In the absence of sterol, the thermal stability of the SM-rich ordered domains increased with ceramide N-acyl chain length in the order C2:0 approximately C6:0 approximately C8:0<no ceramide<C12:0<C16:0. In vesicles containing 25 mol% cholesterol (1:1:0.66 sphingolipid:DOPC:cholesterol), the dependence of raft stability on ceramide N-acyl chain length increased in the order C8:0 approximately C6:0<C2:0<C12:0 approximately no ceramide<C16:0. We also studied the stability of lipid rafts in the presence of N-lauroyl- and N-palmitoylsphingosine analogues containing altered structures in or near the polar portion of the sphingoid base. In almost all cases, the analogues stabilized rafts to about the same degree as a normal ceramide containing the same acyl chain. The only exception was N-palmitoyl-4D-ribophytosphingosine, which was very strongly raft-stabilizing. We conclude that variations in sphingoid base structure induce only insignificant changes in raft properties. N-Lauroyl and N-palmitoylsphingosine and their analogues displaced sterol from rafts to a significant degree. Both C12:0 and C16:0 analogues of ceramide may be good mimics of natural ceramide, and useful for cellular studies in which maintenance of the normal physical properties of ceramide are important.
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Affiliation(s)
- Megha
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY 11794-5215, USA
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Yamane M, Yamane S. The induction of colonocyte differentiation in CaCo-2 cells by sodium butyrate causes an increase in glucosylceramide synthesis in order to avoid apoptosis based on ceramide. Arch Biochem Biophys 2007; 459:159-68. [PMID: 17303065 DOI: 10.1016/j.abb.2007.01.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2006] [Revised: 01/05/2007] [Accepted: 01/06/2007] [Indexed: 10/23/2022]
Abstract
To examine the relationship between apoptosis accompanying differentiation and sphingolipid-metabolism, CaCo-2 cells were used as a model of human intestinal epithelial cells and the variation in cellular Cer/GlcCer-content and related enzyme activities during butyrate-induced differentiation were investigated. The simultaneous administration of PDMP as a GlcCer synthase inhibitor caused a significant increase in the amount of Cers, especially palmitoyl-Cer. Butyrate caused an increase in the amount of GlcCers, especially alpha-hydroxy fatty acid-GlcCers, and in cellular GlcCer synthase activity. Cellular Cer content related to apoptosis was mainly regulated by the GlcCer synthase-based metabolism of Cers.
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Affiliation(s)
- Mototeru Yamane
- Department of Biochemistry, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160, Japan.
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48
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Cianchi F, Cortesini C, Magnelli L, Fanti E, Papucci L, Schiavone N, Messerini L, Vannacci A, Capaccioli S, Perna F, Lulli M, Fabbroni V, Perigli G, Bechi P, Masini E. Inhibition of 5-lipoxygenase by MK886 augments the antitumor activity of celecoxib in human colon cancer cells. Mol Cancer Ther 2007; 5:2716-26. [PMID: 17121918 DOI: 10.1158/1535-7163.mct-06-0318] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cyclooxygenase (COX)-2 and 5-lipoxygenase (5-LOX) are key enzymes involved in arachidonic acid metabolism. Their products, prostaglandins and leukotrienes, are involved in colorectal tumor development. We aimed at evaluating whether combined blocking of the COX-2 and 5-LOX pathways might have additive antitumor effects in colorectal cancer. The expression/activity of COX-2 and 5-LOX were assessed in 24 human colorectal cancer specimens. The effects of the COX-2 inhibitor celecoxib and the 5-LOX inhibitor MK886 on prostaglandin E(2) and cysteinyl leukotriene production, tumor cell proliferation, cell apoptosis, and Bcl-2/Bax expression were evaluated in the Caco-2 and HT29 colon cancer cells. We also investigated the effect of the enzymatic inhibition on mitochondrial membrane depolarization, one of the most important mechanisms involved in ceramide-induced apoptosis. Up-regulation of the COX-2 and 5-LOX pathways was found in the tumor tissue in comparison with normal colon mucosa. Inhibition of either COX-2 or 5-LOX alone resulted in activation of the other pathway in colon cancer cells. Combined treatment with 10 micromol/L celecoxib and MK886 could prevent this activation and had additive effects on inhibiting tumor cell proliferation, inducing cell apoptosis, decreasing Bcl-2 expression, increasing Bax expression, and determining mitochondrial depolarization in comparison with treatment with either inhibitor alone. The administration of the ceramide synthase inhibitor fumonisin B1 could prevent some of these antineoplastic effects. In conclusion, our study showed that inhibition of 5-LOX by MK886 could augment the antitumor activity of celecoxib in human colorectal cancer.
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Affiliation(s)
- Fabio Cianchi
- Dipartimento di Area Critica Medico-Chirurgica Medical School, University of Florence, Viale Morgagni 85, 50134 Florence, Italy.
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Kraveka JM, Li L, Szulc ZM, Bielawski J, Ogretmen B, Hannun YA, Obeid LM, Bielawska A. Involvement of dihydroceramide desaturase in cell cycle progression in human neuroblastoma cells. J Biol Chem 2007; 282:16718-28. [PMID: 17283068 PMCID: PMC2084375 DOI: 10.1074/jbc.m700647200] [Citation(s) in RCA: 133] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The role of dihydroceramide desaturase as a key enzyme in the de novo pathway of ceramide generation was investigated in human neuroblastoma cells (SMS-KCNR). A novel assay using water-soluble analogs of dihydroceramide, dihydroceramidoids (D-erythro-dhCCPS analogs), was used to measure desaturase activity in situ. Conversion of D-erythro-2-N-[12'-(1''-pyridinium)-dodecanoyl]-4,5-dihydrosphingosine bromide (C(12)-dhCCPS) to its 4,5-desaturated counterpart, D-erythro-2-N-[12'-(1''-pyridinium)dodecanoyl]sphingosine bromide (C(12)-CCPS), was determined by liquid chromatography/mass spectrometry analysis. The validity of the assay was confirmed using C(8)-cyclopropenylceramide, a competitive inhibitor of dihydroceramide desaturase. A human homolog (DEGS-1) of the Drosophila melanogaster des-1 gene was recently identified and reported to have desaturase activity. Transfection of SMS-KCNR cells with small interfering RNA to DEGS-1 significantly blocked the conversion of C(12)-dhCCPS to C(12)-CCPS. The associated accumulation of endogenous dihydroceramides confirmed DEGS-1 as the main active dihydroceramide desaturase in these cells. The partial loss of DEGS-1 inhibited cell growth, with cell cycle arrest at G(0)/G(1). This was accompanied by a significant decrease in the amount of phosphorylated retinoblastoma protein. This hypophosphorylation was inhibited by tautomycin and not by okadaic acid, suggesting the involvement of protein phosphatase 1. Additionally, we found that treatment of SMS-KCNR cells with fenretinide inhibited desaturase activity in a dose-dependent manner. An increase in dihydroceramides (but not ceramides) paralleled this process as measured by liquid chromatography/mass spectrometry. There were no effects on the mRNA or protein levels of DEGS-1, suggesting that fenretinide acts at the post-translational level as an inhibitor of this enzyme. Tautomycin was also able to block the hypophosphorylation of the retinoblastoma protein observed upon fenretinide treatment. These findings suggest a novel biological function for dihydroceramides.
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Affiliation(s)
- Jacqueline M Kraveka
- Division of Hematology/Oncology, Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina 29425, USA.
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Munagala N, Nguyen S, Lam W, Lee J, Joly A, McMillan K, Zhang W. Identification of Small Molecule Ceramide Kinase Inhibitors Using A Homogeneous Chemiluminescence High Throughput Assay. Assay Drug Dev Technol 2007; 5:65-73. [PMID: 17355200 DOI: 10.1089/adt.2006.046] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Lipid kinases have emerged as potentially important therapeutic targets in oncology and inflammation. Ceramide kinase (CERK) is a lipid kinase that catalyzes the formation of ceramide-1-phosphate from ceramide, a sphingolipid that is a key mediator of cellular apoptosis. Ceramide-1-phosphate has been shown to enhance the production of pro-inflammatory eicosonoids, to promote cell proliferation, and potentially to reduce intracellular ceramide levels by inhibition of acidic sphingomyelinases. Here we describe a homogeneous chemiluminescence assay that directly measures the ceramide-dependent ATP depletion by recombinant full-length human CERK. As compared to reported CERK assays that have limitations on compound throughput, the chemiluminescence assay has been miniaturized to a 1,536-well microtiter plate format and utilized to screen an ultra-large compound library (>4 million compounds). Multiple chemical scaffolds have been identified as CERK kinase inhibitors and characterized mechanistically, which to our knowledge represent the first known small molecule CERK inhibitors with nanomolar activities. These compounds can serve as tools to further elucidate the CERK pathway and its role in ceramide metabolism and human diseases.
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