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Huang LT, Li TJ, Li ML, Luo HY, Wang YB, Wang JH. Untargeted lipidomic analysis and network pharmacology for parthenolide treated papillary thyroid carcinoma cells. BMC Complement Med Ther 2023; 23:130. [PMID: 37095470 PMCID: PMC10123985 DOI: 10.1186/s12906-023-03944-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 03/29/2023] [Indexed: 04/26/2023] Open
Abstract
BACKGROUND With fast rising incidence, papillary thyroid carcinoma (PTC) is the most common head and neck cancer. Parthenolide, isolated from traditional Chinese medicine, inhibits various cancer cells, including PTC cells. The aim was to investigate the lipid profile and lipid changes of PTC cells when treated with parthenolide. METHODS Comprehensive lipidomic analysis of parthenolide treated PTC cells was conducted using a UHPLC/Q-TOF-MS platform, and the changed lipid profile and specific altered lipid species were explored. Network pharmacology and molecular docking were performed to show the associations among parthenolide, changed lipid species, and potential target genes. RESULTS With high stability and reproducibility, a total of 34 lipid classes and 1736 lipid species were identified. Lipid class analysis indicated that parthenolide treated PTC cells contained higher levels of fatty acid (FA), cholesterol ester (ChE), simple glc series 3 (CerG3) and lysophosphatidylglycerol (LPG), lower levels of zymosterol (ZyE) and Monogalactosyldiacylglycerol (MGDG) than controlled ones, but with no significant differences. Several specific lipid species were changed significantly in PTC cells treated by parthenolide, including the increasing of phosphatidylcholine (PC) (12:0e/16:0), PC (18:0/20:4), CerG3 (d18:1/24:1), lysophosphatidylethanolamine (LPE) (18:0), phosphatidylinositol (PI) (19:0/20:4), lysophosphatidylcholine (LPC) (28:0), ChE (22:6), and the decreasing of phosphatidylethanolamine (PE) (16:1/17:0), PC (34:1) and PC (16:0p/18:0). Four key targets (PLA2G4A, LCAT, LRAT, and PLA2G2A) were discovered when combining network pharmacology and lipidomics. Among them, PLA2G2A and PLA2G4A were able to bind with parthenolide confirmed by molecular docking. CONCLUSIONS The changed lipid profile and several significantly altered lipid species of parthenolide treated PTC cells were observed. These altered lipid species, such as PC (34:1), and PC (16:0p/18:0), may be involved in the antitumor mechanisms of parthenolide. PLA2G2A and PLA2G4A may play key roles when parthenolide treated PTC cells.
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Affiliation(s)
- Le-Tian Huang
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Tie-Jun Li
- Department of Cardiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ming-Lin Li
- Department of Family Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Han-Yong Luo
- Department of Family Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yi-Bing Wang
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Jia-He Wang
- Department of Family Medicine, Shengjing Hospital of China Medical University, Shenyang, China.
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Abdul Rashid K, Ibrahim K, Wong JHD, Mohd Ramli N. Lipid Alterations in Glioma: A Systematic Review. Metabolites 2022; 12:metabo12121280. [PMID: 36557318 PMCID: PMC9783089 DOI: 10.3390/metabo12121280] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/08/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022] Open
Abstract
Gliomas are highly lethal tumours characterised by heterogeneous molecular features, producing various metabolic phenotypes leading to therapeutic resistance. Lipid metabolism reprogramming is predominant and has contributed to the metabolic plasticity in glioma. This systematic review aims to discover lipids alteration and their biological roles in glioma and the identification of potential lipids biomarker. This systematic review was conducted using the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. Extensive research articles search for the last 10 years, from 2011 to 2021, were conducted using four electronic databases, including PubMed, Web of Science, CINAHL and ScienceDirect. A total of 158 research articles were included in this study. All studies reported significant lipid alteration between glioma and control groups, impacting glioma cell growth, proliferation, drug resistance, patients' survival and metastasis. Different lipids demonstrated different biological roles, either beneficial or detrimental effects on glioma. Notably, prostaglandin (PGE2), triacylglycerol (TG), phosphatidylcholine (PC), and sphingosine-1-phosphate play significant roles in glioma development. Conversely, the most prominent anti-carcinogenic lipids include docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), and vitamin D3 have been reported to have detrimental effects on glioma cells. Furthermore, high lipid signals were detected at 0.9 and 1.3 ppm in high-grade glioma relative to low-grade glioma. This evidence shows that lipid metabolisms were significantly dysregulated in glioma. Concurrent with this knowledge, the discovery of specific lipid classes altered in glioma will accelerate the development of potential lipid biomarkers and enhance future glioma therapeutics.
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Affiliation(s)
- Khairunnisa Abdul Rashid
- Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Kamariah Ibrahim
- Department of Biomedical Science, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Jeannie Hsiu Ding Wong
- Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Norlisah Mohd Ramli
- Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Correspondence: ; Tel.: +60-379673238
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Zámbó V, Orosz G, Szabó L, Tibori K, Sipeki S, Molnár K, Csala M, Kereszturi É. A Single Nucleotide Polymorphism (rs3811792) Affecting Human SCD5 Promoter Activity Is Associated with Diabetes Mellitus. Genes (Basel) 2022; 13:genes13101784. [PMID: 36292669 PMCID: PMC9601412 DOI: 10.3390/genes13101784] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/21/2022] [Accepted: 09/29/2022] [Indexed: 11/16/2022] Open
Abstract
The combined prevalence of type 1 (T1DM) and type 2 (T2DM) diabetes mellitus is 10.5% worldwide and this is constantly increasing. The pathophysiology of the diseases include disturbances of the lipid metabolism, in which acyl-CoA desaturases play a central role as they synthesize unsaturated fatty acids, thereby providing protection against lipotoxicity. The stearoyl-CoA desaturase-5 (SCD5) isoform has received little scientific attention. We aimed to investigate the SCD5 promoter and its polymorphisms in vitro, in silico and in a case-control study. The SCD5 promoter region was determined by a luciferase reporter system in HepG2, HEK293T and SK-N-FI cells and it was proved to be cell type-specific, but it was insensitive to different fatty acids. The effect of the SCD5 promoter polymorphisms rs6841081 and rs3811792 was tested in the transfected cells. The T allele of rs3811792 single nucleotide polymorphism (SNP) significantly reduced the activity of the SCD5 promoter in vitro and modified several transcription factor binding sites in silico. A statistically significant association of rs3811792 SNP with T1DM and T2DM was also found, thus supporting the medical relevance of this variation and the complexity of the molecular mechanisms in the development of metabolic disorders. In conclusion, the minor allele of rs3811792 polymorphism might contribute to the development of diabetes by influencing the SCD5 promoter activity.
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Pannkuk EL, Laiakis EC, Garty G, Bansal S, Ponnaiya B, Wu X, Ghandhi SA, Amundson SA, Brenner DJ, Fornace AJ. Biofluid Metabolomics and Lipidomics of Mice Exposed to External Very High-Dose Rate Radiation. Metabolites 2022; 12:520. [PMID: 35736453 PMCID: PMC9228171 DOI: 10.3390/metabo12060520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 05/26/2022] [Accepted: 05/30/2022] [Indexed: 02/01/2023] Open
Abstract
High-throughput biodosimetry methods to determine exposure to ionizing radiation (IR) that can also be easily scaled to multiple testing sites in emergency situations are needed in the event of malicious attacks or nuclear accidents that may involve a substantial number of civilians. In the event of an improvised nuclear device (IND), a complex IR exposure will have a very high-dose rate (VHDR) component from an initial blast. We have previously addressed low-dose rate (LDR, ≤1 Gy/day) exposures from internal emitters on biofluid small molecule signatures, but further research on the VHDR component of the initial blast is required. Here, we exposed 8- to 10-week-old male C57BL/6 mice to an acute dose of 3 Gy using a reference dose rate of 0.7 Gy/min or a VHDR of 7 Gy/s, collected urine and serum at 1 and 7 d, then compared the metabolite signatures using either untargeted (urine) or targeted (serum) approaches with liquid chromatography mass spectrometry platforms. A Random Forest classification approach showed strikingly similar changes in urinary signatures at 1 d post-irradiation with VHDR samples grouping closer to control samples at 7 d. Identical metabolite panels (carnitine, trigonelline, xanthurenic acid, N6,N6,N6-trimethyllysine, spermine, and hexosamine-valine-isoleucine-OH) could differentiate IR exposed individuals with high sensitivity and specificity (area under the receiver operating characteristic (AUROC) curves 0.89-1.00) irrespective of dose rate at both days. For serum, the top 25 significant lipids affected by IR exposure showed slightly higher perturbations at 0.7 Gy/min vs. 7 Gy/s; however, identical panels showed excellent sensitivity and specificity at 1 d (three hexosylceramides (16:0), (18:0), (24:0), sphingomyelin [26:1], lysophosphatidylethanolamine [22:1]). Mice could not be differentiated from control samples at 7 d for a 3 Gy exposure based on serum lipid signatures. As with LDR exposures, we found that identical biofluid small molecule signatures can identify IR exposed individuals irrespective of dose rate, which shows promise for more universal applications of metabolomics for biodosimetry.
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Affiliation(s)
- Evan L. Pannkuk
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA; (E.C.L.); (S.B.); (A.J.F.J.)
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC 20057, USA
- Center for Metabolomic Studies, Georgetown University, Washington, DC 20057, USA
| | - Evagelia C. Laiakis
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA; (E.C.L.); (S.B.); (A.J.F.J.)
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC 20057, USA
- Center for Metabolomic Studies, Georgetown University, Washington, DC 20057, USA
| | - Guy Garty
- Radiological Research Accelerator Facility, Columbia University, Irvington, NY 10032, USA;
- Center for Radiological Research, Columbia University Irving Medical Center, New York, NY 10032, USA; (B.P.); (X.W.); (S.A.G.); (S.A.A.); (D.J.B.)
| | - Shivani Bansal
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA; (E.C.L.); (S.B.); (A.J.F.J.)
| | - Brian Ponnaiya
- Center for Radiological Research, Columbia University Irving Medical Center, New York, NY 10032, USA; (B.P.); (X.W.); (S.A.G.); (S.A.A.); (D.J.B.)
| | - Xuefeng Wu
- Center for Radiological Research, Columbia University Irving Medical Center, New York, NY 10032, USA; (B.P.); (X.W.); (S.A.G.); (S.A.A.); (D.J.B.)
| | - Shanaz A. Ghandhi
- Center for Radiological Research, Columbia University Irving Medical Center, New York, NY 10032, USA; (B.P.); (X.W.); (S.A.G.); (S.A.A.); (D.J.B.)
| | - Sally A. Amundson
- Center for Radiological Research, Columbia University Irving Medical Center, New York, NY 10032, USA; (B.P.); (X.W.); (S.A.G.); (S.A.A.); (D.J.B.)
| | - David J. Brenner
- Center for Radiological Research, Columbia University Irving Medical Center, New York, NY 10032, USA; (B.P.); (X.W.); (S.A.G.); (S.A.A.); (D.J.B.)
| | - Albert J. Fornace
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA; (E.C.L.); (S.B.); (A.J.F.J.)
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC 20057, USA
- Center for Metabolomic Studies, Georgetown University, Washington, DC 20057, USA
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Lysophosphatidylethanolamine Affects Lipid Accumulation and Metabolism in a Human Liver-Derived Cell Line. Nutrients 2022; 14:nu14030579. [PMID: 35276938 PMCID: PMC8839386 DOI: 10.3390/nu14030579] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/25/2022] [Accepted: 01/25/2022] [Indexed: 11/30/2022] Open
Abstract
The physiological functions of lysophosphatidylethanolamine (lysoPE) have not been fully elucidated. In this study, the effects of lysoPE on lipogenesis and lipolysis were investigated in a cultured human liver-derived cell line. The intracellular lipid profile was investigated in detail using liquid chromatography–tandem mass spectrometry (LC-MS/MS) to better understand the underlying mechanism. The expression of genes related to lipid metabolism and catabolism was analyzed using real-time PCR. LysoPE supplementation induced cellular lipid droplet formation and altered triacylglycerol (TAG) profiles. Furthermore, lysoPE downregulated expression of the TAG hydrolyzation regulation factor ATGL, and reduced the expression of fatty acid biosynthesis-related genes SREBP1 and SCD1. LC-MS/MS-based lipidomic profiling revealed that the addition of lysoPE 18:2 increased the PE species containing linoleic acyl, as well as the CE 18:2 species, likely due to the incorporation of linoleic acyl from lysoPE 18:2. Collectively, these findings suggest that lysoPE 18:2 is involved in lipid droplet formation by suppressing lipolysis and fatty acid biosynthesis. Thus, lysoPE might play a pathological role in the induction of fatty liver disease.
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Gilard V, Ferey J, Marguet F, Fontanilles M, Ducatez F, Pilon C, Lesueur C, Pereira T, Basset C, Schmitz-Afonso I, Di Fioré F, Laquerrière A, Afonso C, Derrey S, Marret S, Bekri S, Tebani A. Integrative Metabolomics Reveals Deep Tissue and Systemic Metabolic Remodeling in Glioblastoma. Cancers (Basel) 2021; 13:5157. [PMID: 34680306 PMCID: PMC8534284 DOI: 10.3390/cancers13205157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/01/2021] [Accepted: 10/03/2021] [Indexed: 11/17/2022] Open
Abstract
(1) Background: Glioblastoma is the most common malignant brain tumor in adults. Its etiology remains unknown in most cases. Glioblastoma pathogenesis consists of a progressive infiltration of the white matter by tumoral cells leading to progressive neurological deficit, epilepsy, and/or intracranial hypertension. The mean survival is between 15 to 17 months. Given this aggressive prognosis, there is an urgent need for a better understanding of the underlying mechanisms of glioblastoma to unveil new diagnostic strategies and therapeutic targets through a deeper understanding of its biology. (2) Methods: To systematically address this issue, we performed targeted and untargeted metabolomics-based investigations on both tissue and plasma samples from patients with glioblastoma. (3) Results: This study revealed 176 differentially expressed lipids and metabolites, 148 in plasma and 28 in tissue samples. Main biochemical classes include phospholipids, acylcarnitines, sphingomyelins, and triacylglycerols. Functional analyses revealed deep metabolic remodeling in glioblastoma lipids and energy substrates, which unveils the major role of lipids in tumor progression by modulating its own environment. (4) Conclusions: Overall, our study demonstrates in situ and systemic metabolic rewiring in glioblastoma that could shed light on its underlying biological plasticity and progression to inform diagnosis and/or therapeutic strategies.
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Affiliation(s)
- Vianney Gilard
- Department of Neurosurgery, UNIROUEN, CHU Rouen, INSERM U1245, Normandie University, 76000 Rouen, France;
| | - Justine Ferey
- Department of Metabolic Biochemistry, UNIROUEN, CHU Rouen, INSERM U1245, Normandie University, 76000 Rouen, France; (J.F.); (F.D.); (C.P.); (C.L.); (A.T.)
| | - Florent Marguet
- Department of Pathology, UNIROUEN, CHU Rouen, INSERM U1245, Normandie University, 76000 Rouen, France; (F.M.); (C.B.); (A.L.)
| | - Maxime Fontanilles
- Institut de Biologie Clinique, CHU Rouen, 76000 Rouen, France; (M.F.); (T.P.)
- INSA Rouen, CNRS IRCOF, 1 Rue TesnieÌre, COBRA UMR 6014 Et FR 3038 University Rouen, Normandie University, CEDEX, 76821 Mont-Saint-Aignan, France; (I.S.-A.); (C.A.)
| | - Franklin Ducatez
- Department of Metabolic Biochemistry, UNIROUEN, CHU Rouen, INSERM U1245, Normandie University, 76000 Rouen, France; (J.F.); (F.D.); (C.P.); (C.L.); (A.T.)
- Intensive Care and Neuropediatrics, Department of Neonatal Pediatrics, INSERM U1245, CHU Rouen, UNIROUEN, Normandie University, 76000 Rouen, France;
| | - Carine Pilon
- Department of Metabolic Biochemistry, UNIROUEN, CHU Rouen, INSERM U1245, Normandie University, 76000 Rouen, France; (J.F.); (F.D.); (C.P.); (C.L.); (A.T.)
| | - Céline Lesueur
- Department of Metabolic Biochemistry, UNIROUEN, CHU Rouen, INSERM U1245, Normandie University, 76000 Rouen, France; (J.F.); (F.D.); (C.P.); (C.L.); (A.T.)
| | - Tony Pereira
- Institut de Biologie Clinique, CHU Rouen, 76000 Rouen, France; (M.F.); (T.P.)
| | - Carole Basset
- Department of Pathology, UNIROUEN, CHU Rouen, INSERM U1245, Normandie University, 76000 Rouen, France; (F.M.); (C.B.); (A.L.)
| | - Isabelle Schmitz-Afonso
- INSA Rouen, CNRS IRCOF, 1 Rue TesnieÌre, COBRA UMR 6014 Et FR 3038 University Rouen, Normandie University, CEDEX, 76821 Mont-Saint-Aignan, France; (I.S.-A.); (C.A.)
| | - Frédéric Di Fioré
- Normandy Centre for Genomic and Personalized Medicine, IRON Group, INSERM U1245, UNIROUEN, Normandie University, 76000 Rouen, France;
- Department of Medical Oncology, Cancer Centre Henri Becquerel, Rue d’Amiens, 76000 Rouen, France
| | - Annie Laquerrière
- Department of Pathology, UNIROUEN, CHU Rouen, INSERM U1245, Normandie University, 76000 Rouen, France; (F.M.); (C.B.); (A.L.)
| | - Carlos Afonso
- INSA Rouen, CNRS IRCOF, 1 Rue TesnieÌre, COBRA UMR 6014 Et FR 3038 University Rouen, Normandie University, CEDEX, 76821 Mont-Saint-Aignan, France; (I.S.-A.); (C.A.)
| | - Stéphane Derrey
- Department of Neurosurgery, CHU Rouen, INSERM U1073, UNIROUEN, Normandie University, 76000 Rouen, France;
| | - Stéphane Marret
- Intensive Care and Neuropediatrics, Department of Neonatal Pediatrics, INSERM U1245, CHU Rouen, UNIROUEN, Normandie University, 76000 Rouen, France;
| | - Soumeya Bekri
- Department of Metabolic Biochemistry, UNIROUEN, CHU Rouen, INSERM U1245, Normandie University, 76000 Rouen, France; (J.F.); (F.D.); (C.P.); (C.L.); (A.T.)
| | - Abdellah Tebani
- Department of Metabolic Biochemistry, UNIROUEN, CHU Rouen, INSERM U1245, Normandie University, 76000 Rouen, France; (J.F.); (F.D.); (C.P.); (C.L.); (A.T.)
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Jaroch K, Modrakowska P, Bojko B. Glioblastoma Metabolomics-In Vitro Studies. Metabolites 2021; 11:315. [PMID: 34068300 PMCID: PMC8153257 DOI: 10.3390/metabo11050315] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/20/2021] [Accepted: 05/10/2021] [Indexed: 12/13/2022] Open
Abstract
In 2016, the WHO introduced new guidelines for the diagnosis of brain gliomas based on new genomic markers. The addition of these new markers to the pre-existing diagnostic methods provided a new level of precision for the diagnosis of glioma and the prediction of treatment effectiveness. Yet, despite this new classification tool, glioblastoma (GBM), a grade IV glioma, continues to have one of the highest mortality rates among central nervous system tumors. Metabolomics is a particularly promising tool for the analysis of GBM tumors and potential methods of treating them, as it is the only "omics" approach that is capable of providing a metabolic signature of a tumor's phenotype. With careful experimental design, cell cultures can be a useful matrix in GBM metabolomics, as they ensure stable conditions and, under proper conditions, are capable of capturing different tumor phenotypes. This paper reviews in vitro metabolomic profiling studies of high-grade gliomas, with a particular focus on sample-preparation techniques, crucial metabolites identified, cell culture conditions, in vitro-in vivo extrapolation, and pharmacometabolomics. Ultimately, this review aims to elucidate potential future directions for in vitro GBM metabolomics.
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Affiliation(s)
| | | | - Barbara Bojko
- Department of Pharmacodynamics and Molecular Pharmacology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, dr A. Jurasza 2 Street, 85-089 Bydgoszcz, Poland; (K.J.); (P.M.)
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Xi C, Zhao H, Lu X, Cai TJ, Li S, Liu KH, Tian M, Liu QJ. Screening of Lipids for Early Triage and Dose Estimation after Acute Radiation Exposure in Rat Plasma Based on Targeted Lipidomics Analysis. J Proteome Res 2020; 20:576-590. [PMID: 33200940 DOI: 10.1021/acs.jproteome.0c00560] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Rapid early triage and dose estimation is vital for limited medical resource allocation and treatment of a large number of the wounded after radiological accidents. Lipidomics has been utilized to delineate biofluid lipid signatures after irradiation. Here, high-coverage targeted lipidomics was employed to screen radiosensitive lipids after 0, 1, 2, 3, 5, and 8 Gy total body irradiation at 4, 24, and 72 h postirradiation in rat plasma. Ultra-performance liquid chromatography-tandem mass spectrometry with a multiple reaction monitoring method was utilized. In total, 416 individual lipids from 18 major classes were quantified and those biomarkers altered in a dose-dependent manner constituted panel A-panel D. Receiver operator characteristic curve analysis using combined lipids showed good to excellent sensitivity and specificity in triaging different radiation exposure levels (area under curve = 0.814-1.000). The equations for dose estimation were established by stepwise regression analysis for three time points. A novel strategy for radiation early triage and dose estimation was first established and validated using panels of lipids. Our study suggests that it is feasible to acquire quantitative lipid biomarker panels using targeted lipidomics platforms for rapid, high-throughput triage, which can provide further insights in developing lipidomics strategies for radiation biodosimetry in humans.
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Affiliation(s)
- Cong Xi
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, P. R. China
| | - Hua Zhao
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, P. R. China
| | - Xue Lu
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, P. R. China
| | - Tian-Jing Cai
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, P. R. China
| | - Shuang Li
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, P. R. China
| | - Ke-Hui Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mei Tian
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, P. R. China
| | - Qing-Jie Liu
- China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, P. R. China
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9
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Igal RA, Sinner DI. Stearoyl-CoA desaturase 5 (SCD5), a Δ-9 fatty acyl desaturase in search of a function. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1866:158840. [PMID: 33049404 DOI: 10.1016/j.bbalip.2020.158840] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/26/2020] [Accepted: 10/07/2020] [Indexed: 12/12/2022]
Abstract
A large body of research has demonstrated that human stearoyl-CoA desaturase 1 (SCD1), a universally expressed fatty acid Δ9-desaturase that converts saturated fatty acids (SFA) into monounsaturated fatty acids (MUFA), is a central regulator of metabolic and signaling pathways involved in cell proliferation, differentiation, and survival. Unlike SCD1, stearoyl-CoA desaturase 5 (SCD5), a second SCD isoform found in a variety of vertebrates, including humans, has received considerably less attention but new information on the catalytic properties, regulation and biological functions of this enzyme has begun to emerge. This review will examine the new evidence that supports key metabolic and biological roles for SCD5, as well as the potential implication of this desaturase in the mechanisms of human diseases.
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Affiliation(s)
- R Ariel Igal
- Institute of Human Nutrition and Department of Pediatrics, Columbia University Irving Medical Center, 630 West 168th Street, PH 1501 East, New York City, NY 10032, United States of America.
| | - Débora I Sinner
- Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Lab: R4447, Office: R4445, MLC 7009, 3333 Burnet Ave, Cincinnati, OH 45229, United States of America.
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10
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Das UN. Bioactive lipids as modulators of immune check point inhibitors. Med Hypotheses 2019; 135:109473. [PMID: 31733534 DOI: 10.1016/j.mehy.2019.109473] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 11/02/2019] [Indexed: 02/07/2023]
Abstract
It is proposed that arachidonic acid (AA, 20:4 n-6) and other polyunsaturated fatty acids (PUFAs) in combination with immune check point inhibitors and tumor infiltrating lymphocytes (TILs) enhances the activity of T and NK cells and macrophages and thus, aids in the elimination of tumor cells and suppresses inflammatory side effects due to immune check point inhibitors.
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Affiliation(s)
- Undurti N Das
- UND Life Sciences, 2221 NW 5th St, Battle Ground, WA 98604, USA; BioScience Research Centre, GVP College of Engineering Campus and Department of Medicine, GVP Hospital and Medical College, Visakhapatnam 530048, India.
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Timoszuk M, Bielawska K, Skrzydlewska E. Evening Primrose ( Oenothera biennis) Biological Activity Dependent on Chemical Composition. Antioxidants (Basel) 2018; 7:antiox7080108. [PMID: 30110920 PMCID: PMC6116039 DOI: 10.3390/antiox7080108] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 07/31/2018] [Accepted: 08/08/2018] [Indexed: 12/19/2022] Open
Abstract
Evening primrose (Oenothera L.) is a plant belonging to the family Onagraceae, in which the most numerous species is Oenothera biennis. Some plants belonging to the genus Oenothera L. are characterized by biological activity. Therefore, studies were conducted to determine the dependence of biological activity on the chemical composition of various parts of the evening primrose, mainly leaves, stems, and seeds. Common components of all parts of the Oenothera biennis plants are fatty acids, phenolic acids, and flavonoids. In contrast, primrose seeds also contain proteins, carbohydrates, minerals, and vitamins. Therefore, it is believed that the most interesting sources of biologically active compounds are the seeds and, above all, evening primrose seed oil. This oil contains mainly aliphatic alcohols, fatty acids, sterols, and polyphenols. Evening primrose oil (EPO) is extremely high in linoleic acid (LA) (70–74%) and γ-linolenic acid (GLA) (8–10%), which may contribute to the proper functioning of human tissues because they are precursors of anti-inflammatory eicosanoids. EPO supplementation results in an increase in plasma levels of γ-linolenic acid and its metabolite dihomo-γ-linolenic acid (DGLA). This compound is oxidized by lipoxygenase (15-LOX) to 15-hydroxyeicosatrienoic acid (15-HETrE) or, under the influence of cyclooxygenase (COX), DGLA is metabolized to series 1 prostaglandins. These compounds have anti-inflammatory and anti-proliferative properties. Furthermore, 15-HETrE blocks the conversion of arachidonic acid (AA) to leukotriene A4 (LTA4) by direct inhibition of 5-LOX. In addition, γ-linolenic acid suppresses inflammation mediators such as interleukin 1β (IL-1β), interleukin 6 (IL-6), and cytokine - tumor necrosis factor α (TNF-α). The beneficial effects of EPO have been demonstrated in the case of atopic dermatitis, psoriasis, Sjögren’s syndrome, asthma, and anti-cancer therapy.
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Affiliation(s)
- Magdalena Timoszuk
- Department of Inorganic and Analytical Chemistry, Medical University of Bialystok, 15-089 Bialystok, Poland.
| | - Katarzyna Bielawska
- Department of Inorganic and Analytical Chemistry, Medical University of Bialystok, 15-089 Bialystok, Poland.
| | - Elżbieta Skrzydlewska
- Department of Inorganic and Analytical Chemistry, Medical University of Bialystok, 15-089 Bialystok, Poland.
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12
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Polavarapu S, Dwarakanath BS, Das UN. Differential action of polyunsaturated fatty acids and eicosanoids on bleomycin-induced cytotoxicity to neuroblastoma cells and lymphocytes. Arch Med Sci 2018; 14:207-229. [PMID: 29379552 PMCID: PMC5778433 DOI: 10.5114/aoms.2018.72244] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 02/24/2017] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION This study was conducted to examine whether bleomycin-induced growth inhibitory action on human neuroblastoma cells (IMR-32) is influenced by anti-inflammatory metabolites of polyunsaturated fatty acids (PUFAs): lipoxin A4 (LXA4), resolvin D1 and protectin D1 in vitro. MATERIAL AND METHODS The in vitro study was conducted using monolayer cultures of exponentially growing IMR-32 cells. The effects of various PUFAs and eicosanoids and anti-inflammatory metabolites of PUFAs such as lipoxin A4 (LXA4), resolvin D1 and protectin D1 on the growth of IMR-32 cells and human lymphocytes in vitro were investigated. The potential of PUFAs, eicosanoids and LXA4, resolvin D1 and protectin D1 to modify the growth inhibitory effects of bleomycin was also studied in IMR-32 cells and human lymphocytes. RESULTS PUFAs inhibited the growth of IMR-32 cells (EPA > DHA = AA > GLA = ALA > DGLA = LA) significantly (p < 0.001) while prostaglandins were found to be not effective. Bleomycin-induced growth inhibitory action on IMR-32 cells was augmented by PUFAs and its metabolites (p < 0.05). PUFAs and LXA4 did not inhibit the growth of human lymphocytes and bleomycin-induced growth inhibitory action was also not enhanced by these bioactive lipids. CONCLUSIONS Bioactive lipids have differential action on normal human lymphocytes and tumor cells in vitro. The apparent lack of effect of PUFAs in combination with bleomycin on the growth of human lymphocytes in comparison to their growth inhibitory action on IMR-32 cells suggests that PUFAs can be used in combination with bleomycin to target tumor cells with little concern over this combination's effect on the growth of human lymphocytes. Further studies are warranted to evaluate these differential effects under in vivo conditions.
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Affiliation(s)
- Sailaja Polavarapu
- BioScience Research Centre, Gayatri Vidya Parishad College of Engineering Campus, Madhurawada, Andhra Pradesh, India
| | | | - Undurti N. Das
- BioScience Research Centre, Gayatri Vidya Parishad College of Engineering Campus, Madhurawada, Andhra Pradesh, India
- UND Life Sciences, Battle Ground, USA
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13
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Salah H, Li M, Cacciani N, Gastaldello S, Ogilvie H, Akkad H, Namuduri AV, Morbidoni V, Artemenko KA, Balogh G, Martinez-Redondo V, Jannig P, Hedström Y, Dworkin B, Bergquist J, Ruas J, Vigh L, Salviati L, Larsson L. The chaperone co-inducer BGP-15 alleviates ventilation-induced diaphragm dysfunction. Sci Transl Med 2017; 8:350ra103. [PMID: 27488897 DOI: 10.1126/scitranslmed.aaf7099] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 06/29/2016] [Indexed: 12/28/2022]
Abstract
Ventilation-induced diaphragm dysfunction (VIDD) is a marked decline in diaphragm function in response to mechanical ventilation, which has negative consequences for individual patients' quality of life and for the health care system, but specific treatment strategies are still lacking. We used an experimental intensive care unit (ICU) model, allowing time-resolved studies of diaphragm structure and function in response to long-term mechanical ventilation and the effects of a pharmacological intervention (the chaperone co-inducer BGP-15). The marked loss of diaphragm muscle fiber function in response to mechanical ventilation was caused by posttranslational modifications (PTMs) of myosin. In a rat model, 10 days of BGP-15 treatment greatly improved diaphragm muscle fiber function (by about 100%), although it did not reverse diaphragm atrophy. The treatment also provided protection from myosin PTMs associated with HSP72 induction and PARP-1 inhibition, resulting in improvement of mitochondrial function and content. Thus, BGP-15 may offer an intervention strategy for reducing VIDD in mechanically ventilated ICU patients.
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Affiliation(s)
- Heba Salah
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden. Department of Neuroscience, Clinical Neurophysiology, Uppsala University, Uppsala 75124, Sweden
| | - Meishan Li
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden
| | - Nicola Cacciani
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden
| | - Stefano Gastaldello
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden
| | - Hannah Ogilvie
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden
| | - Hazem Akkad
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden
| | - Arvind Venkat Namuduri
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden
| | - Valeria Morbidoni
- Clinical Genetics Unit, Department of Women's and Children's Health, University of Padova, Padova 35128, Italy
| | - Konstantin A Artemenko
- Analytical Chemistry, Department of Chemistry-Biomedical Centre and Science for Life Laboratory (SciLifeLab), Uppsala University, Uppsala 75124, Sweden
| | - Gabor Balogh
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged H-6726, Hungary
| | | | - Paulo Jannig
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden
| | - Yvette Hedström
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden
| | - Barry Dworkin
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden. Department of Neuroscience, Pennsylvania State University, Hershey, PA 17033, USA
| | - Jonas Bergquist
- Analytical Chemistry, Department of Chemistry-Biomedical Centre and Science for Life Laboratory (SciLifeLab), Uppsala University, Uppsala 75124, Sweden. Department of Pathology, School of Medicine, University of Utah, Salt Lake City, UT 84112, USA. Precision Medicine, Binzhou Medical University, Yantai City, Shandong 264003, China
| | - Jorge Ruas
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden
| | - Laszlo Vigh
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged H-6726, Hungary
| | - Leonardo Salviati
- Clinical Genetics Unit, Department of Women's and Children's Health, University of Padova, Padova 35128, Italy
| | - Lars Larsson
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-177 77, Sweden. Department of Biobehavioral Health, Pennsylvania State University, University Park, PA 16802, USA. Department of Clinical Neuroscience, Clinical Neurophysiology, Karolinska Institutet, Stockholm SE-177 77, Sweden.
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14
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Tóth EA, Oszvald Á, Péter M, Balogh G, Osteikoetxea-Molnár A, Bozó T, Szabó-Meleg E, Nyitrai M, Derényi I, Kellermayer M, Yamaji T, Hanada K, Vígh L, Matkó J. Nanotubes connecting B lymphocytes: High impact of differentiation-dependent lipid composition on their growth and mechanics. Biochim Biophys Acta Mol Cell Biol Lipids 2017. [PMID: 28645851 DOI: 10.1016/j.bbalip.2017.06.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanotubes (NTs) are thin, long membranous structures forming novel, yet poorly known communication pathways between various cell types. Key mechanisms controlling their growth still remained poorly understood. Since NT-forming capacity of immature and mature B cells was found largely different, we investigated how lipid composition and molecular order of the membrane affect NT-formation. Screening B cell lines with various differentiation stages revealed that NT-growth linearly correlates with membrane ganglioside levels, while it shows maximum as a function of cholesterol level. NT-growth of B lymphocytes is promoted by raftophilic phosphatidylcholine and sphingomyelin species, various glycosphingolipids, and docosahexaenoic acid-containing inner leaflet lipids, through supporting membrane curvature, as demonstrated by comparative lipidomic analysis of mature versus immature B cell membranes. Targeted modification of membrane cholesterol and sphingolipid levels altered NT-forming capacity confirming these findings, and also highlighted that the actual lipid raft number may control NT-growth via defining the number of membrane-F-actin coupling sites. Atomic force microscopic mechano-manipulation experiments further proved that mechanical properties (elasticity or bending stiffness) of B cell NTs also depend on the actual membrane lipid composition. Data presented here highlight importance of the lipid side in controlling intercellular, nanotubular, regulatory communications in the immune system.
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Affiliation(s)
- Eszter A Tóth
- Department of Immunology, Eötvös Lorand University, Budapest, Hungary
| | - Ádám Oszvald
- Department of Immunology, Eötvös Lorand University, Budapest, Hungary
| | - Mária Péter
- Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Szeged, Hungary
| | - Gábor Balogh
- Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Szeged, Hungary.
| | | | - Tamás Bozó
- Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Edina Szabó-Meleg
- Department of Biophysics, Medical Faculty, University of Pécs, Pécs, Hungary; Department of Szentágothai Research Center, University of Pécs, Pécs, Hungary
| | - Miklós Nyitrai
- Department of Biophysics, Medical Faculty, University of Pécs, Pécs, Hungary; Department of Szentágothai Research Center, University of Pécs, Pécs, Hungary
| | - Imre Derényi
- Department of Biological Physics, Eötvös Lorand University, Budapest, Hungary
| | - Miklós Kellermayer
- Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary; MTA-SE Molecular Biophysics Research Group, Semmelweis University, Budapest, Hungary
| | - Toshiyuki Yamaji
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shunjuku-ku, Tokyo, Japan
| | - Kentaro Hanada
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shunjuku-ku, Tokyo, Japan
| | - László Vígh
- Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Szeged, Hungary
| | - János Matkó
- Department of Immunology, Eötvös Lorand University, Budapest, Hungary.
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15
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Colquhoun A. Cell biology-metabolic crosstalk in glioma. Int J Biochem Cell Biol 2017; 89:171-181. [PMID: 28549626 DOI: 10.1016/j.biocel.2017.05.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 05/15/2017] [Accepted: 05/17/2017] [Indexed: 12/19/2022]
Abstract
The renewed interest in cancer metabolism in recent years has been fuelled by the identification of the involvement of key oncogenes and tumour suppressor genes in the control of metabolic pathways. Many of these alterations lead to dramatic changes in bioenergetics, biosynthesis and redox balance within tumour cells. The complex relationship between tumour cell metabolism and the tumour microenvironment has turned this field of biochemistry and cell biology into a challenging and exciting area for study. In the case of gliomas the involvement of altered metabolic pathways including glycolysis, oxidative phosphorylation and glutaminolysis are pointing the way to new possibilities for treatment. The tumour-promoting effects of inflammation are an emerging hallmark of cancer and the role of the eicosanoids in gliomas is an area of active research to elucidate the importance of individual eicosanoids in glioma cell proliferation, migration and immune escape. In this review, the different aspects of metabolic reprogramming which occur in gliomas are highlighted and their relationship to glioma cell biology and the wider tumour microenvironment is described.
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Affiliation(s)
- Alison Colquhoun
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil.
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16
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Péter M, Glatz A, Gudmann P, Gombos I, Török Z, Horváth I, Vígh L, Balogh G. Metabolic crosstalk between membrane and storage lipids facilitates heat stress management in Schizosaccharomyces pombe. PLoS One 2017; 12:e0173739. [PMID: 28282432 PMCID: PMC5345867 DOI: 10.1371/journal.pone.0173739] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 02/24/2017] [Indexed: 12/28/2022] Open
Abstract
Cell membranes actively participate in stress sensing and signalling. Here we present the first in-depth lipidomic analysis to characterize alterations in the fission yeast Schizosaccharomyces pombe in response to mild heat stress (HS). The lipidome was assessed by a simple one-step methanolic extraction. Genetic manipulations that altered triglyceride (TG) content in the absence or presence of HS gave rise to distinct lipidomic fingerprints for S. pombe. Cells unable to produce TG demonstrated long-lasting growth arrest and enhanced signalling lipid generation. Our results reveal that metabolic crosstalk between membrane and storage lipids facilitates homeostatic maintenance of the membrane physical/chemical state that resists negative effects on cell growth and viability in response to HS. We propose a novel stress adaptation mechanism in which heat-induced TG synthesis contributes to membrane rigidization by accommodating unsaturated fatty acids of structural lipids, enabling their replacement by newly synthesized saturated fatty acids.
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Affiliation(s)
- Mária Péter
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Attila Glatz
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Péter Gudmann
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Imre Gombos
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Zsolt Török
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Ibolya Horváth
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - László Vígh
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Gábor Balogh
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
- * E-mail:
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17
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The SH3 domain of Caskin1 binds to lysophosphatidic acid suggesting a direct role for the lipid in intracellular signaling. Cell Signal 2017; 32:66-75. [PMID: 28104445 DOI: 10.1016/j.cellsig.2017.01.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 12/15/2016] [Accepted: 01/14/2017] [Indexed: 01/11/2023]
Abstract
Src homology 3 or SH3 domains constitute one of the most common protein domains in signal transduction, generally characterized by their binding to proline-rich sequences on interacting signaling proteins. Caskin1, a scaffold protein regulating cortical actin filaments, enriched in neural synapses in mammals, has an atypical SH3 domain. Key aromatic residues necessary for ligand binding that are present in canonical SH3 domains are missing from Caskin1 SH3. In concordance, proline-rich interacting partner could not be identified yet. Based on previous reports that several SH3 domains are able to bind phospholipids, we sought for lipid interacting partners of the SH3 domain of human Caskin1. We investigated the signaling-born lysophospholipid mediators, such as lysophosphatidic acid (LPA) and sphingosine-1-phosphate (S1P) as potential binding partners for this SH3 domain. These lipid mediators as first messengers activate G protein-coupled receptors. They also exert several G protein-coupled receptor-independent functions but their intracellular target proteins are mostly unknown. Here we provide evidence that the SH3 domain of human Caskin1 selectively binds to LPA in vitro. The binding strength and stoichiometry depend on the association-state of the lipid, with nanomolar affinity to LPA-containing membraneous surfaces. The amino acids involved in the interaction are located in a β-strand structure and are distinct from those corresponding to the canonical proline-rich ligand-binding groove in the SH3 domain of Src kinase. Our results suggest that the SH3 domain of human Caskin1 is a lipid-binding domain rather than a proline-rich motif interacting domain.
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18
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Szebeni GJ, Vizler C, Nagy LI, Kitajka K, Puskas LG. Pro-Tumoral Inflammatory Myeloid Cells as Emerging Therapeutic Targets. Int J Mol Sci 2016; 17:ijms17111958. [PMID: 27886105 PMCID: PMC5133952 DOI: 10.3390/ijms17111958] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 11/01/2016] [Accepted: 11/16/2016] [Indexed: 12/29/2022] Open
Abstract
Since the observation of Virchow, it has long been known that the tumor microenvironment constitutes the soil for the infiltration of inflammatory cells and for the release of inflammatory mediators. Under certain circumstances, inflammation remains unresolved and promotes cancer development. Here, we review some of these indisputable experimental and clinical evidences of cancer related smouldering inflammation. The most common myeloid infiltrate in solid tumors is composed of myeloid-derived suppressor cells (MDSCs) and tumor-associated macrophages (TAMs). These cells promote tumor growth by several mechanisms, including their inherent immunosuppressive activity, promotion of neoangiogenesis, mediation of epithelial-mesenchymal transition and alteration of cellular metabolism. The pro-tumoral functions of TAMs and MDSCs are further enhanced by their cross-talk offering a myriad of potential anti-cancer therapeutic targets. We highlight these main pro-tumoral mechanisms of myeloid cells and give a general overview of their phenotypical and functional diversity, offering examples of possible therapeutic targets. Pharmacological targeting of inflammatory cells and molecular mediators may result in therapies improving patient condition and prognosis. Here, we review experimental and clinical findings on cancer-related inflammation with a major focus on creating an inventory of current small molecule-based therapeutic interventions targeting cancer-related inflammatory cells: TAMs and MDSCs.
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Affiliation(s)
- Gabor J Szebeni
- Avidin Ltd., Also kikoto sor 11/D., H-6726 Szeged, Hungary.
- Synaptogenex Ltd., Őzsuta utca 20995/1, H-1037 Budapest, Hungary.
| | - Csaba Vizler
- Department of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Temesvari krt. 62., H-6726 Szeged, Hungary.
| | - Lajos I Nagy
- Avidin Ltd., Also kikoto sor 11/D., H-6726 Szeged, Hungary.
| | - Klara Kitajka
- Department of Genetics, Biological Research Center, Hungarian Academy of Sciences, Temesvari krt. 62., H-6726 Szeged, Hungary.
| | - Laszlo G Puskas
- Avidin Ltd., Also kikoto sor 11/D., H-6726 Szeged, Hungary.
- Department of Genetics, Biological Research Center, Hungarian Academy of Sciences, Temesvari krt. 62., H-6726 Szeged, Hungary.
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19
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Brameshuber M, Sevcsik E, Rossboth BK, Manner C, Deigner HP, Peksel B, Péter M, Török Z, Hermetter A, Schütz GJ. Oxidized Phospholipids Inhibit the Formation of Cholesterol-Dependent Plasma Membrane Nanoplatforms. Biophys J 2016; 110:205-13. [PMID: 26745423 DOI: 10.1016/j.bpj.2015.11.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 10/14/2015] [Accepted: 11/13/2015] [Indexed: 01/08/2023] Open
Abstract
We previously developed a single-molecule microscopy method termed TOCCSL (thinning out clusters while conserving stoichiometry of labeling), which allows for direct imaging of stable nanoscopic platforms with raft-like properties diffusing in the plasma membrane. As a consensus raft marker, we chose monomeric GFP linked via a glycosylphosphatidylinositol (GPI) anchor to the cell membrane (mGFP-GPI). With this probe, we previously observed cholesterol-dependent homo-association to nanoplatforms diffusing in the plasma membrane of live CHO cells. Here, we report the release of this homo-association upon addition of 1-palmitoyl-2-(5-oxovaleroyl)-sn-glycero-3-phosphocholine (POVPC) or 1-palmitoyl-2-glutaroyl-sn-glycero-3-phosphocholine, two oxidized phospholipids (oxPLs) that are typically present in oxidatively modified low-density lipoprotein. We found a dose-response relationship for mGFP-GPI nanoplatform disintegration upon addition of POVPC, correlating with the signal of the apoptosis marker Annexin V-Cy3. Similar concentrations of lysolipid showed no effect, indicating that the observed phenomena were not linked to properties of the lipid bilayer itself. Inhibition of acid sphingomyelinase by NB-19 before addition of POVPC completely abolished nanoplatform disintegration by oxPLs. In conclusion, we were able to determine how oxidized lipid species disrupt mGFP-GPI nanoplatforms in the plasma membrane. Our results favor an indirect mechanism involving acid sphingomyelinase activity rather than a direct interaction of oxPLs with nanoplatform constituents.
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Affiliation(s)
| | - Eva Sevcsik
- Institute of Applied Physics, TU Wien, Vienna, Austria
| | | | | | - Hans-Peter Deigner
- Faculty of Medical and Life Sciences, Institute of Precision Medicine, Furtwangen University, Villingen-Schwenningen, Germany; Fraunhofer Institute IZI/EXIM, Furtwangen, Germany
| | - Begüm Peksel
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Mária Péter
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Zsolt Török
- Institute of Biochemistry, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - Albin Hermetter
- Institute of Biochemistry, Graz University of Technology, Graz, Austria
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Choi WH. Evaluation of anti-tubercular activity of linolenic acid and conjugated-linoleic acid as effective inhibitors against Mycobacterium tuberculosis. ASIAN PAC J TROP MED 2016; 9:125-9. [DOI: 10.1016/j.apjtm.2016.01.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 12/20/2015] [Accepted: 12/30/2015] [Indexed: 10/22/2022] Open
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