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Wang S, Zhang M, Sun H, Li T, Hao J, Fang M, Dong J, Xu H. Multi-omics analysis of TLCD1 as a promising biomarker in pan-cancer. Front Cell Dev Biol 2024; 11:1305906. [PMID: 38559424 PMCID: PMC10978584 DOI: 10.3389/fcell.2023.1305906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 12/31/2023] [Indexed: 04/04/2024] Open
Abstract
Background: The TLC Domain Containing 1 (TLCD1) protein, a key regulator of phosphatidylethanolamine (PE) composition, is distributed across several cellular membranes, including mitochondrial plasma membranes. Existing research has revealed the impact of TLCD1 on the development of non-alcoholic fatty liver disease. However, there remains a gap in comprehensive pan-cancer analyses of TLCD1, and the precise role of TLCD1 in cancer patient prognosis and immunological responses remains elusive. This study aims to provide a comprehensive visualization of the prognostic landscape associated with TLCD1 across a spectrum of cancers, while shedding light on the potential links between TLCD1 expression within the tumor microenvironment and immune infiltration characteristics. Methods: TLCD1 expression data were obtained from GTEx, TCGA, and HPA data repositories. Multiple databases including TIMER, HPA, TISIDB, cBioPortal, GEPIA2, STRING, KEGG, GO, and CancerSEA were used to investigate the expression pattern, diagnostic and prognostic significance, mutation status, functional analysis, and functional status of TLCD1. In addition, we evaluated the relationship between TLCD1 expression and immune infiltration, tumor mutational burden (TMB), microsatellite instability (MSI), and immune-related genes in pan-cancer. Furthermore, the association of TLCD1 with drug sensitivity was analyzed using the CellMiner database. Results: We found that TLCD1 is generally highly expressed in pan-cancers and is significantly associated with the staging and prognosis of various cancers. Furthermore, our results also showed that TLCD1 was significantly associated with immune cell infiltration and immune regulatory factor expression. Using CellMiner database analysis, we then found a strong correlation between TLCD1 expression and sensitivity to anticancer drugs, indicating its potential as a therapeutic target. The most exciting finding is that high TLCD1 expression is associated with worse survival and prognosis in GBM and SKCM patients receiving anti-PD1 therapy. These findings highlight the potential of TLCD1 as a predictive biomarker for response to immunotherapy. Conclusion: TLCD1 plays a role in the regulation of immune infiltration and affects the prognosis of patients with various cancers. It serves as both a prognostic and immunologic biomarker in human cancer.
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Affiliation(s)
- Shengli Wang
- Zhuhai Institute of Translational Medicine, Zhuhai People’s Hospital Affiliated With Jinan University, Jinan University, Zhuhai, Guangdong, China
- The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, Guangdong, China
| | - Mingyue Zhang
- Zhuhai Institute of Translational Medicine, Zhuhai People’s Hospital Affiliated With Jinan University, Jinan University, Zhuhai, Guangdong, China
- The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, Guangdong, China
| | - Hongyan Sun
- Zhuhai Institute of Translational Medicine, Zhuhai People’s Hospital Affiliated With Jinan University, Jinan University, Zhuhai, Guangdong, China
- The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, Guangdong, China
| | - Tao Li
- Zhuhai Institute of Translational Medicine, Zhuhai People’s Hospital Affiliated With Jinan University, Jinan University, Zhuhai, Guangdong, China
- The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, Guangdong, China
| | - Jianlei Hao
- Zhuhai Institute of Translational Medicine, Zhuhai People’s Hospital Affiliated With Jinan University, Jinan University, Zhuhai, Guangdong, China
- The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, Guangdong, China
| | - Meixia Fang
- Department of Laboratory Animal, Institute of Laboratory Animal Science, Jinan University, Guangzhou, Guangdong, China
| | - Jie Dong
- Department of Clinical Laboratory, Guangzhou Twelfth People’s Hospital, Guangzhou, Guangdong, China
| | - Hongbiao Xu
- Department of Thyroid and Breast Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
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Rabow Z, Laubach K, Kong X, Shen T, Mohibi S, Zhang J, Fiehn O, Chen X. p73α1, an Isoform of the p73 Tumor Suppressor, Modulates Lipid Metabolism and Cancer Cell Growth via Stearoyl-CoA Desaturase-1. Cells 2022; 11:2516. [PMID: 36010592 PMCID: PMC9406568 DOI: 10.3390/cells11162516] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 01/26/2023] Open
Abstract
Altered lipid metabolism is a hallmark of cancer. p73, a p53 family member, regulates cellular processes and is expressed as multiple isoforms. However, the role of p73 in regulating lipid metabolism is not well-characterized. Previously, we found that loss of p73 exon 12 (E12) leads to an isoform switch from p73α to p73α1, the latter of which has strong tumor suppressive activity. In this study, comprehensive untargeted metabolomics was performed to determine whether p73α1 alters lipid metabolism in non-small cell lung carcinoma cells. RNA-seq and molecular biology approaches were combined to identify lipid metabolism genes altered upon loss of E12 and identify a direct target of p73α1. We found that loss of E12 leads to decreased levels of phosphatidylcholines, and this was due to decreased expression of genes involved in phosphatidylcholine synthesis. Additionally, we found that E12-knockout cells had increased levels of phosphatidylcholines containing saturated fatty acids (FAs) and decreased levels of phosphatidylcholines containing monounsaturated fatty acids (MUFAs). We then found that p73α1 inhibits cancer cell viability through direct transcriptional suppression of Stearoyl-CoA Desaturase-1 (SCD1), which converts saturated FAs to MUFAs. Finally, we showed that p73α1-mediated suppression of SCD1 leads to increased ratios of saturated FAs to MUFAs.
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Affiliation(s)
- Zachary Rabow
- West Coast Metabolomics Center, University of California, Davis, CA 95616, USA
| | - Kyra Laubach
- Comparative Oncology Laboratory, Schools of Medicine and Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Xiangmudong Kong
- Comparative Oncology Laboratory, Schools of Medicine and Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Tong Shen
- West Coast Metabolomics Center, University of California, Davis, CA 95616, USA
| | - Shakur Mohibi
- Comparative Oncology Laboratory, Schools of Medicine and Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Jin Zhang
- Comparative Oncology Laboratory, Schools of Medicine and Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Oliver Fiehn
- West Coast Metabolomics Center, University of California, Davis, CA 95616, USA
| | - Xinbin Chen
- Comparative Oncology Laboratory, Schools of Medicine and Veterinary Medicine, University of California, Davis, CA 95616, USA
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Tamiya-Koizumi K, Otoki Y, Nakagawa K, Kannagi R, Mizutani N, Suzuki M, Kyogashima M, Iwaki S, Aoyama M, Murate T, Kitatani K, Kuga T, Mizutani Y, Tokumura A. Cellular concentrations of plasmalogen species containing a polyunsaturated fatty acid significantly increase under hypoxia in human colorectal cancer, Caco2 cells. Biochem Biophys Res Commun 2022; 611:1-7. [DOI: 10.1016/j.bbrc.2022.04.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 04/13/2022] [Indexed: 11/02/2022]
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Geroldinger-Simić M, Bögl T, Himmelsbach M, Sepp N, Buchberger W. Changes in Plasma Phospholipid Metabolism Are Associated with Clinical Manifestations of Systemic Sclerosis. Diagnostics (Basel) 2021; 11:diagnostics11112116. [PMID: 34829463 PMCID: PMC8625116 DOI: 10.3390/diagnostics11112116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/03/2021] [Accepted: 11/05/2021] [Indexed: 01/07/2023] Open
Abstract
Systemic sclerosis (SSc) is an autoimmune disease with fibrosis of the skin and/or internal organs, causing a decrease in quality of life and survival. There is no causative therapy, and the pathophysiology of the SSc remains unclear. Studies showed that lipid metabolism was relevant for autoimmune diseases, but little is known about the role of lipids in SSc. In the present study, we sought to explore the phospholipid profile of SSc by using the lipidomics approach. We also aimed to analyze lipidomics results for different clinical manifestations of SSc. Experiments were performed using high-performance liquid chromatography coupled to mass spectrometry for the lipidomic profiling of plasma samples from patients with SSc. Our study showed, for the first time, significant changes in the level of phospholipids such as plasmalogens and sphingomyelins from the plasma of SSc patients as compared to controls. Phosphatidylcholine plasmalogens species and sphingomyelins were significantly increased in SSc patients as compared to controls. Our results also demonstrated a significant association of changes in the metabolism of phospholipids (phosphatidylcholine and phosphatidylethanolamine plasmalogens species and sphingomyelins) with different clinical manifestations of SSc. Further lipidomic studies might lead to the detection of lipids as new biomarkers or therapeutic targets of SSc.
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Affiliation(s)
- Marija Geroldinger-Simić
- Department of Dermatology, Ordensklinikum Linz Elisabethinen, 4020 Linz, Austria;
- Faculty of Medicine, Johannes Kepler University Linz, 4040 Linz, Austria
- Correspondence:
| | - Thomas Bögl
- Institute for Analytical and General Chemistry, Johannes Kepler University Linz, 4040 Linz, Austria; (T.B.); (M.H.); (W.B.)
| | - Markus Himmelsbach
- Institute for Analytical and General Chemistry, Johannes Kepler University Linz, 4040 Linz, Austria; (T.B.); (M.H.); (W.B.)
| | - Norbert Sepp
- Department of Dermatology, Ordensklinikum Linz Elisabethinen, 4020 Linz, Austria;
| | - Wolfgang Buchberger
- Institute for Analytical and General Chemistry, Johannes Kepler University Linz, 4040 Linz, Austria; (T.B.); (M.H.); (W.B.)
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Tomida S, Goodenowe DB, Koyama T, Ozaki E, Kuriyama N, Morita M, Yamazaki Y, Sakaguchi K, Uehara R, Taguchi T. Plasmalogen Deficiency and Overactive Fatty Acid Elongation Biomarkers in Serum of Breast Cancer Patients Pre- and Post-Surgery-New Insights on Diagnosis, Risk Assessment, and Disease Mechanisms. Cancers (Basel) 2021; 13:cancers13164170. [PMID: 34439324 PMCID: PMC8391794 DOI: 10.3390/cancers13164170] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/11/2021] [Accepted: 08/16/2021] [Indexed: 12/17/2022] Open
Abstract
Simple Summary Breast cancer (BC) is the most commonly diagnosed cancer in women. Mammography and ultrasonography are commonly used for BC screening; however, they are associated with problems such as inconvenience, radiation exposure, and dependence on the skill level of operators. To overcome this problem, we performed a comprehensive lipid metabolomic analysis of serum using high-resolution accurate mass spectrometry from two case-control studies that included non-BC, BC subjects pre-surgery and BC subjects one-month post-surgery to determine if the metabolic signatures of over-active fatty acid elongation and other lipid changes could be detected in BC vs. non-BC subjects. The ratios of the linoleic acid to the oleic acid which were evaluated in multiple lipid pools were lower in pre-surgery BC subjects, however, these ratios increased at post-surgery and were no longer different from non-BC subjects. On the other hand, the ethanolamine plasmalogen levels were lower in pre-surgery BC subjects and were not recovered by surgical removal. These do not appear to be caused by BC tumor activity and may be pre-existent and a possible risk factor for BC. In this study, we have identified several lipid metabolic systems that detect both BC risk and BC activity. Abstract The polyunsaturated fatty acid (PUFA) elongase, ELOVL5, is upregulated in breast cancer (BC) vs. adjacent normal tissue. We performed a comprehensive lipid metabolomic analysis of serum using high-resolution accurate mass spectrometry from two case-control studies that included non-BC, BC subjects pre-surgery, and BC subjects one-month post-surgery to determine if the metabolic signatures of over-active fatty acid elongation and other lipid changes could be detected in BC vs. non-BC subjects: study 1 (n = 48: non-BC, n = 69: pre-surgery BC); study 2 (blinded validation: n = 121: non-BC, n = 62: pre-surgery BC, n = 31: one month post-surgery). The ratio of the ELOVL5 precursor, linoleic acid (18:2) to a non-ELOVL5 precursor, oleic acid (18:1) was evaluated in multiple lipid pools (phosphatidylethanolamine (PtdEtn), phosphatidylcholine (PtdCho), lyso-PtdCho, and free fatty acids). This ratio was lower in pre-surgery BC subjects in all pools in both studies (p < 0.001). At one-month post-surgery, the 18:2/18:1 ratios increased vs. pre-surgery and were no longer different from non-BC subjects (p > 0.05 expect for lyso-PtdCho). In contrast to the elongation biomarkers, docosahexaenoic acid (22:6n-3) containing ethanolamine plasmalogen (EtnPls) species were observed to be further decreased in BC subjects one-month post-surgery vs. pre-surgery levels (p < 0.001). These results are consistent with the hypothesis that ELOVL5 is upregulated in BC tissue, which would result in the selective depletion of 18:2 vs. 18:1 containing lipid species. Surgical removal of the tumor removes the overactive ELOVL5 effect on serum lipids. In contrast, the low EtnPls levels do not appear to be caused by BC tumor activity and may be pre-existent and a possible risk factor for BC. These results indicate that it may be possible to screen for both breast cancer risk and breast cancer activity using a simple blood test.
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Affiliation(s)
- Satomi Tomida
- Department of Endocrine and Breast Surgery, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (S.T.); (M.M.); (K.S.); (T.T.)
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (E.O.); (N.K.); (R.U.)
| | | | - Teruhide Koyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (E.O.); (N.K.); (R.U.)
- Correspondence: ; Tel.: +81-75-251-5789; Fax: +81-75-251-5799
| | - Etsuko Ozaki
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (E.O.); (N.K.); (R.U.)
| | - Nagato Kuriyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (E.O.); (N.K.); (R.U.)
- Shizuoka Graduate University of Public Health, 420-0881 Shizuoka, Japan
| | - Midori Morita
- Department of Endocrine and Breast Surgery, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (S.T.); (M.M.); (K.S.); (T.T.)
| | - Yasuyo Yamazaki
- Prodrome Sciences USA LLC, Temecula, CA 92591, USA; (D.B.G.); (Y.Y.)
| | - Koichi Sakaguchi
- Department of Endocrine and Breast Surgery, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (S.T.); (M.M.); (K.S.); (T.T.)
| | - Ritei Uehara
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (E.O.); (N.K.); (R.U.)
| | - Tetsuya Taguchi
- Department of Endocrine and Breast Surgery, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; (S.T.); (M.M.); (K.S.); (T.T.)
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6
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Kowalczyk T, Kisluk J, Pietrowska K, Godzien J, Kozlowski M, Reszeć J, Sierko E, Naumnik W, Mróz R, Moniuszko M, Kretowski A, Niklinski J, Ciborowski M. The Ability of Metabolomics to Discriminate Non-Small-Cell Lung Cancer Subtypes Depends on the Stage of the Disease and the Type of Material Studied. Cancers (Basel) 2021; 13:cancers13133314. [PMID: 34282765 PMCID: PMC8268630 DOI: 10.3390/cancers13133314] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/24/2021] [Accepted: 06/28/2021] [Indexed: 02/04/2023] Open
Abstract
Identification of the NSCLC subtype at an early stage is still quite sophisticated. Metabolomics analysis of tissue and plasma of NSCLC patients may indicate new, and yet unknown, metabolic pathways active in the NSCLC. Our research characterized the metabolomics profile of tissue and plasma of patients with early and advanced NSCLC stage. Samples were subjected to thorough metabolomics analyses using liquid chromatography-mass spectrometry (LC-MS) technique. Tissue and/or plasma samples from 137 NSCLC patients were analyzed. Based on the early stage tissue analysis, more than 200 metabolites differentiating adenocarcinoma (ADC) and squamous cell lung carcinoma (SCC) subtypes as well as normal tissue, were identified. Most of the identified metabolites were amino acids, fatty acids, carnitines, lysoglycerophospholipids, sphingomyelins, plasmalogens and glycerophospholipids. Moreover, metabolites related to N-acyl ethanolamine (NAE) biosynthesis, namely glycerophospho (N-acyl) ethanolamines (GP-NAE), which discriminated early-stage SCC from ADC, have also been identified. On the other hand, the analysis of plasma of chronic obstructive pulmonary disease (COPD) and NSCLC patients allowed exclusion of the metabolites related to the inflammatory state in lungs and the identification of compounds (lysoglycerophospholipids, glycerophospholipids and sphingomyelins) truly characteristic to cancer. Our results, among already known, showed novel, thus far not described, metabolites discriminating NSCLC subtypes, especially in the early stage of cancer. Moreover, the presented results also indicated the activity of new metabolic pathways in NSCLC. Further investigations on the role of NAE biosynthesis pathways in the early stage of NSCLC may reveal new prognostic and diagnostic targets.
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Affiliation(s)
- Tomasz Kowalczyk
- Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, M. Skłodowskiej-Curie 24a, 15-276 Bialystok, Poland; (T.K.); (K.P.); (J.G.); (A.K.)
| | - Joanna Kisluk
- Department of Clinical Molecular Biology, Medical University of Bialystok, Waszyngtona 13, 15-269 Bialystok, Poland; (J.K.); (J.N.)
| | - Karolina Pietrowska
- Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, M. Skłodowskiej-Curie 24a, 15-276 Bialystok, Poland; (T.K.); (K.P.); (J.G.); (A.K.)
| | - Joanna Godzien
- Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, M. Skłodowskiej-Curie 24a, 15-276 Bialystok, Poland; (T.K.); (K.P.); (J.G.); (A.K.)
| | - Miroslaw Kozlowski
- Department of Thoracic Surgery, Medical University of Bialystok, M. Skłodowskiej-Curie 24a, 15-276 Bialystok, Poland;
| | - Joanna Reszeć
- Department of Medical Patomorphology, Medical University of Bialystok, Waszyngtona 13, 15-269 Bialystok, Poland;
| | - Ewa Sierko
- Department of Oncology, Medical University of Bialystok, Ogrodowa 12, 15-027 Bialystok, Poland;
| | - Wojciech Naumnik
- 1st Department of Lung Diseases and Tuberculosis, Medical University of Bialystok, Żurawia 14, 15-540 Bialystok, Poland;
| | - Robert Mróz
- 2nd Department of Lung Diseases and Tuberculosis, Medical University of Bialystok, Żurawia 14, 15-540 Bialystok, Poland;
| | - Marcin Moniuszko
- Department of Allergology and Internal Medicine, Medical University of Bialystok, M. Skłodowskiej-Curie 24a, 15-276 Bialystok, Poland;
- Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, Waszyngtona 13, 15-269 Bialystok, Poland
| | - Adam Kretowski
- Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, M. Skłodowskiej-Curie 24a, 15-276 Bialystok, Poland; (T.K.); (K.P.); (J.G.); (A.K.)
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, M. Skłodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Jacek Niklinski
- Department of Clinical Molecular Biology, Medical University of Bialystok, Waszyngtona 13, 15-269 Bialystok, Poland; (J.K.); (J.N.)
| | - Michal Ciborowski
- Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, M. Skłodowskiej-Curie 24a, 15-276 Bialystok, Poland; (T.K.); (K.P.); (J.G.); (A.K.)
- Correspondence:
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7
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Reynolds LM, Dutta R, Seeds MC, Lake KN, Hallmark B, Mathias RA, Howard TD, Chilton FH. FADS genetic and metabolomic analyses identify the ∆5 desaturase (FADS1) step as a critical control point in the formation of biologically important lipids. Sci Rep 2020; 10:15873. [PMID: 32985521 PMCID: PMC7522985 DOI: 10.1038/s41598-020-71948-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 08/24/2020] [Indexed: 12/12/2022] Open
Abstract
Humans have undergone intense evolutionary selection to optimize their capacity to generate necessary quantities of long chain (LC-) polyunsaturated fatty acid (PUFA)-containing lipids. To better understand the impact of genetic variation within a locus of three FADS genes (FADS1, FADS2, and FADS3) on a diverse family of lipids, we examined the associations of 247 lipid metabolites (including four major classes of LC-PUFA-containing molecules and signaling molecules) with common and low-frequency genetic variants located within the FADS locus. Genetic variation in the FADS locus was strongly associated (p < 1.2 × 10–8) with 52 LC-PUFA-containing lipids and signaling molecules, including free fatty acids, phospholipids, lyso-phospholipids, and an endocannabinoid. Notably, the majority (80%) of FADS-associated lipids were not significantly associated with genetic variants outside of this FADS locus. These findings highlight the central role genetic variation at the FADS locus plays in regulating levels of physiologically critical LC-PUFA-containing lipids that participate in innate immunity, energy homeostasis, and brain development/function.
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Affiliation(s)
- Lindsay M Reynolds
- Division of Public Health Sciences, Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Rahul Dutta
- Department of Urology, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Michael C Seeds
- Department of Internal Medicine/Molecular Medicine, and the Wake Forest Institute of Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Kirsten N Lake
- Department of Nutritional Sciences, University of Arizona, Tucson, AZ, 85719, USA
| | - Brian Hallmark
- The BIO5 Institute, University of Arizona, Tucson, AZ, 85719, USA
| | - Rasika A Mathias
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University, Baltimore, MD, 21224, USA
| | - Timothy D Howard
- Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Floyd H Chilton
- Department of Nutritional Sciences, University of Arizona, Tucson, AZ, 85719, USA. .,The BIO5 Institute, University of Arizona, Tucson, AZ, 85719, USA.
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Abstract
Peroxisomes are metabolic organelles involved in lipid metabolism and cellular redox balance. Peroxisomal function is central to fatty acid oxidation, ether phospholipid synthesis, bile acid synthesis, and reactive oxygen species homeostasis. Human disorders caused by genetic mutations in peroxisome genes have led to extensive studies on peroxisome biology. Peroxisomal defects are linked to metabolic dysregulation in diverse human diseases, such as neurodegeneration and age-related disorders, revealing the significance of peroxisome metabolism in human health. Cancer is a disease with metabolic aberrations. Despite the critical role of peroxisomes in cell metabolism, the functional effects of peroxisomes in cancer are not as well recognized as those of other metabolic organelles, such as mitochondria. In addition, the significance of peroxisomes in cancer is less appreciated than it is in degenerative diseases. In this review, I summarize the metabolic pathways in peroxisomes and the dysregulation of peroxisome metabolism in cancer. In addition, I discuss the potential of inactivating peroxisomes to target cancer metabolism, which may pave the way for more effective cancer treatment.
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9
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Fontaine D, Figiel S, Félix R, Kouba S, Fromont G, Mahéo K, Potier-Cartereau M, Chantôme A, Vandier C. Roles of endogenous ether lipids and associated PUFAs in the regulation of ion channels and their relevance for disease. J Lipid Res 2020; 61:840-858. [PMID: 32265321 PMCID: PMC7269763 DOI: 10.1194/jlr.ra120000634] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/29/2020] [Indexed: 12/16/2022] Open
Abstract
Ether lipids (ELs) are lipids characterized by the presence of either an ether linkage (alkyl lipids) or a vinyl ether linkage [i.e., plasmalogens (Pls)] at the sn1 position of the glycerol backbone, and they are enriched in PUFAs at the sn2 position. In this review, we highlight that ELs have various biological functions, act as a reservoir for second messengers (such as PUFAs) and have roles in many diseases. Some of the biological effects of ELs may be associated with their ability to regulate ion channels that control excitation-contraction/secretion/mobility coupling and therefore cell physiology. These channels are embedded in lipid membranes, and lipids can regulate their activities directly or indirectly as second messengers or by incorporating into membranes. Interestingly, ELs and EL-derived PUFAs have been reported to play a key role in several pathologies, including neurological disorders, cardiovascular diseases, and cancers. Investigations leading to a better understanding of their mechanisms of action in pathologies have opened a new field in cancer research. In summary, newly identified lipid regulators of ion channels, such as ELs and PUFAs, may represent valuable targets to improve disease diagnosis and advance the development of new therapeutic strategies for managing a range of diseases and conditions.
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Affiliation(s)
- Delphine Fontaine
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France
| | - Sandy Figiel
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France
| | - Romain Félix
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France
| | - Sana Kouba
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France
| | - Gaëlle Fromont
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France; Department of Pathology, CHRU Bretonneau, F-37044 Tours CEDEX 9, France
| | - Karine Mahéo
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France; Faculté de Pharmacie, Université de Tours, F-37200 Tours, France
| | | | - Aurélie Chantôme
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France; Faculté de Pharmacie, Université de Tours, F-37200 Tours, France
| | - Christophe Vandier
- Inserm N2C UMR1069, Université de Tours, F-37032 Tours CEDEX 1, France. mailto:
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10
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Bestard-Escalas J, Maimó-Barceló A, Lopez DH, Reigada R, Guardiola-Serrano F, Ramos-Vivas J, Hornemann T, Okazaki T, Barceló-Coblijn G. Common and Differential Traits of the Membrane Lipidome of Colon Cancer Cell Lines and their Secreted Vesicles: Impact on Studies Using Cell Lines. Cancers (Basel) 2020; 12:E1293. [PMID: 32443825 PMCID: PMC7281030 DOI: 10.3390/cancers12051293] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/17/2020] [Accepted: 05/18/2020] [Indexed: 12/21/2022] Open
Abstract
Colorectal cancer (CRC) is the fourth leading cause of cancer death in the world. Despite the screening programs, its incidence in the population below the 50s is increasing. Therefore, new stratification protocols based on multiparametric approaches are highly needed. In this scenario, the lipidome is emerging as a powerful tool to classify tumors, including CRC, wherein it has proven to be highly sensitive to cell malignization. Hence, the possibility to describe the lipidome at the level of lipid species has renewed the interest to investigate the role of specific lipid species in pathologic mechanisms, being commercial cell lines, a model still heavily used for this purpose. Herein, we characterize the membrane lipidome of five commercial colon cell lines and their extracellular vesicles (EVs). The results demonstrate that both cell and EVs lipidome was able to segregate cells according to their malignancy. Furthermore, all CRC lines shared a specific and strikingly homogenous impact on ether lipid species. Finally, this study also cautions about the need of being aware of the singularities of each cell line at the level of lipid species. Altogether, this study firmly lays the groundwork of using the lipidome as a solid source of tumor biomarkers.
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Affiliation(s)
- Joan Bestard-Escalas
- Lipids in Human Pathology, Health Research Institute of the Balearic Islands (IdISBa), Research Unit, University Hospital Son Espases, 07120 Palma, Spain; (J.B.-E.); (A.M.-B.); (D.H.L.); (R.R.)
| | - Albert Maimó-Barceló
- Lipids in Human Pathology, Health Research Institute of the Balearic Islands (IdISBa), Research Unit, University Hospital Son Espases, 07120 Palma, Spain; (J.B.-E.); (A.M.-B.); (D.H.L.); (R.R.)
| | - Daniel H. Lopez
- Lipids in Human Pathology, Health Research Institute of the Balearic Islands (IdISBa), Research Unit, University Hospital Son Espases, 07120 Palma, Spain; (J.B.-E.); (A.M.-B.); (D.H.L.); (R.R.)
| | - Rebeca Reigada
- Lipids in Human Pathology, Health Research Institute of the Balearic Islands (IdISBa), Research Unit, University Hospital Son Espases, 07120 Palma, Spain; (J.B.-E.); (A.M.-B.); (D.H.L.); (R.R.)
| | | | - José Ramos-Vivas
- Valdecilla Research Institute (IDIVAL ), 39011 Santander, Spain;
- Microbiology Unit, University Hospital Marqués de Valdecilla, 39008 Santander, Spain
- Spanish Network for Research in Infectious Diseases (REIPI), Institute of Health Carlos III (ISCIII), 28029 Madrid, Spain
| | - Thorsten Hornemann
- Institute of Clinical Chemistry, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland;
| | - Toshiro Okazaki
- Department of Hematology/Immunity, Kanazawa Medical University, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan;
| | - Gwendolyn Barceló-Coblijn
- Lipids in Human Pathology, Health Research Institute of the Balearic Islands (IdISBa), Research Unit, University Hospital Son Espases, 07120 Palma, Spain; (J.B.-E.); (A.M.-B.); (D.H.L.); (R.R.)
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11
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Eiriksson FF, Nøhr MK, Costa M, Bödvarsdottir SK, Ögmundsdottir HM, Thorsteinsdottir M. Lipidomic study of cell lines reveals differences between breast cancer subtypes. PLoS One 2020; 15:e0231289. [PMID: 32287294 PMCID: PMC7156077 DOI: 10.1371/journal.pone.0231289] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 03/19/2020] [Indexed: 12/24/2022] Open
Abstract
Breast cancer (BC) is the most prevalent type of cancer in women in western countries. BC mortality has not declined despite early detection by screening, indicating the need for better informed treatment decisions. Therefore, a novel noninvasive diagnostic tool for BC would give the opportunity of subtype-specific treatment and improved prospects for the patients. Heterogeneity of BC tumor subtypes is reflected in the expression levels of enzymes in lipid metabolism. The aim of the study was to investigate whether the subtype defined by the transcriptome is reflected in the lipidome of BC cell lines. A liquid chromatography mass spectrometry (LC-MS) platform was applied to analyze the lipidome of six cell lines derived from human BC cell lines representing different BC subtypes. We identified an increased abundance of triacylglycerols (TG) ≥ C-48 with moderate or multiple unsaturation in fatty acyl chains and down-regulated ether-phosphatidylethanolamines (PE) (C-34 to C-38) in cell lines representing estrogen receptor and progesterone receptor positive tumor subtypes. In a cell line representing HER2-overexpressing tumor subtype an elevated expression of TG (≤ C-46), phosphatidylcholines (PC) and PE containing short-chained (≤ C-16) saturated or monounsaturated fatty acids were observed. Increased abundance of PC ≥ C-40 was found in cell lines of triple negative BC subtype. In addition, differences were detected in lipidomes within these previously defined subtypes. We conclude that subtypes defined by the transcriptome are indeed reflected in differences in the lipidome and, furthermore, potentially biologically relevant differences may exist within these defined subtypes.
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Affiliation(s)
- Finnur Freyr Eiriksson
- Faculty of Pharmaceutical Sciences, University of Iceland, Reykjavík, Iceland
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- ArcticMass, Reykjavík, Iceland
| | - Martha Kampp Nøhr
- Faculty of Pharmaceutical Sciences, University of Iceland, Reykjavík, Iceland
- Biomedical Center, University of Iceland, Reykjavík, Iceland
| | - Margarida Costa
- Faculty of Pharmaceutical Sciences, University of Iceland, Reykjavík, Iceland
- ArcticMass, Reykjavík, Iceland
| | - Sigridur Klara Bödvarsdottir
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Biomedical Center, University of Iceland, Reykjavík, Iceland
| | - Helga Margret Ögmundsdottir
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Biomedical Center, University of Iceland, Reykjavík, Iceland
| | - Margret Thorsteinsdottir
- Faculty of Pharmaceutical Sciences, University of Iceland, Reykjavík, Iceland
- ArcticMass, Reykjavík, Iceland
- Biomedical Center, University of Iceland, Reykjavík, Iceland
- * E-mail:
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12
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Yang Z, Song Z, Chen Z, Guo Z, Jin H, Ding C, Hong Y, Cai Z. Metabolic and lipidomic characterization of malignant pleural effusion in human lung cancer. J Pharm Biomed Anal 2019; 180:113069. [PMID: 31884394 DOI: 10.1016/j.jpba.2019.113069] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/27/2019] [Accepted: 12/21/2019] [Indexed: 12/31/2022]
Abstract
Malignant pleural effusion (MPE) is an important hallmark for late-stage lung cancer with metastasis. Current clinical diagnosis methods require tedious work to distinguish MPE from benign pleural effusion (BPE). The objective of this study was to characterize the metabolic signatures in MPE of lung cancer, and identify potential metabolite biomarkers for diagnosis of MPE. MPE from lung cancer (n = 46) and BPE from tuberculosis patients (n = 32) were investigated by liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based global metabolomic and lipidomic profiling. Multivariate partial least-square discriminative analysis models exhibited distinct metabolic profiles between MPE and BPE. A total of 25 ether lipids, including phosphatidylcholines (PC), lysophosphatidylcholines (LPC) and phosphatidylethanolamines (PE), were observed to be significantly downregulated in MPE with excellent diagnostic potential. Plasmalogen PC(40:3p) showed highest AUC value of 0.953 in receiver operating characteristic (ROC) model. Oxidized polyunsaturated fatty acids (PUFA) were upregulated in MPE. The obtained results implied a high oxidative stress and peroxisome disorder in lung cancer patients. Combined metabolomic and lipidomic profiling have discovered potential biomarkers in MPE with excellent clinical diagnostic capability. Dysregulated ether lipids and oxidized PUFAs have implied an aberrant redox metabolism, which provides novel insights into the pathology of MPE in lung cancer.
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Affiliation(s)
- Zhiyi Yang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Zhengbo Song
- Department of Thoracic Oncology, Zhejiang Cancer Hospital, Hangzhou, China
| | - Zhongjian Chen
- Department of Cancer Research, Zhejiang Cancer Hospital, Hangzhou, China
| | - Zhenyu Guo
- HKBU Institute for Research and Continuing Education, Shenzhen, China
| | - Hangbiao Jin
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Cheng Ding
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Yanjun Hong
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China; HKBU Institute for Research and Continuing Education, Shenzhen, China.
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
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13
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Marqueño A, Blanco M, Maceda-Veiga A, Porte C. Skeletal Muscle Lipidomics as a New Tool to Determine Altered Lipid Homeostasis in Fish Exposed to Urban and Industrial Wastewaters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:8416-8425. [PMID: 31241908 DOI: 10.1021/acs.est.9b02064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This work applies ultrahigh performance liquid chromatography coupled with high-resolution mass spectrometry (UPLC-HRMS) to characterize for the first time the lipidome of the skeletal muscle of two fish species (Barbus meridionalis, Squalius laietanus) collected in a Mediterranean River affected by urban and industrial wastewater outflows. The untargeted analysis allowed a clear separation of the lipidome of fish from polluted and reference sites; phosphatidylcholines (PCs), phosphatidylethanolamines (PEs), and their lyso and ether-linked forms were among the distinctive features. The targeted analysis consistently detected a decrease in PC-plasmalogens (36:4, 36:6, 38:6) and highly unsaturated PCs (36:5, 36:6, 38:6, 40:6, 40:7) and an increase in plasmanyl-PCs (36:5, 38:5), lyso-PCs (16:1, 18:1, 22:4) and cholesteryl esters (CEs) (16:0, 18:0, 20:4) in fish from polluted sites. These lipid profiles were indicative of oxidative stress and dysregulation of cholesterol homeostasis in fish from polluted sites. This methodology represents a promising tool for the development of novel noninvasive diagnostic methods based on muscle tissue biopsies to assess the effects of water pollution in wildlife.
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Affiliation(s)
- Anna Marqueño
- Environmental Chemistry Department , IDAEA-CSIC , Jordi Girona 18 , 08034 Barcelona , Spain
| | - Maria Blanco
- Environmental Chemistry Department , IDAEA-CSIC , Jordi Girona 18 , 08034 Barcelona , Spain
| | - Alberto Maceda-Veiga
- Department of Evolutionary Biology, Ecology and Environmental Sciences - IRBio, Faculty of Biology , University of Barcelona , 08028 Barcelona , Spain
| | - Cinta Porte
- Environmental Chemistry Department , IDAEA-CSIC , Jordi Girona 18 , 08034 Barcelona , Spain
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14
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Lopez DH, Bestard-Escalas J, Garate J, Maimó-Barceló A, Fernández R, Reigada R, Khorrami S, Ginard D, Okazaki T, Fernández JA, Barceló-Coblijn G. Tissue-selective alteration of ethanolamine plasmalogen metabolism in dedifferentiated colon mucosa. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1863:928-938. [PMID: 29709709 DOI: 10.1016/j.bbalip.2018.04.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 04/12/2018] [Accepted: 04/21/2018] [Indexed: 01/09/2023]
Abstract
Human colon lipid analysis by imaging mass spectrometry (IMS) demonstrates that the lipid fingerprint is highly sensitive to a cell's pathophysiological state. Along the colon crypt axis, and concomitant to the differentiation process, certain lipid species tightly linked to signaling (phosphatidylinositols and arachidonic acid (AA)-containing diacylglycerophospholipids), change following a rather simple mathematical expression. We extend here our observations to ethanolamine plasmalogens (PlsEtn), a unique type of glycerophospholipid presenting a vinyl ether linkage at sn-1 position. PlsEtn distribution was studied in healthy, adenomatous, and carcinomatous colon mucosa sections by IMS. In epithelium, 75% of PlsEtn changed in a highly regular manner along the crypt axis, in clear contrast with diacyl species (67% of which remained constant). Consistently, AA-containing PlsEtn species were more abundant at the base, where stem cells reside, and decreased while ascending the crypt. In turn, mono-/diunsaturated species experienced the opposite change. These gradients were accompanied by a gradual expression of ether lipid synthesis enzymes. In lamina propria, 90% of stromal PlsEtn remained unchanged despite the high content of AA and the gradient in AA-containing diacylglycerophospholipids. Finally, both lipid and protein gradients were severely affected in polyps and carcinoma. These results link PlsEtn species regulation to cell differentiation for the first time and confirm that diacyl and ether species are differently regulated. Furthermore, they reaffirm the observations on cell lipid fingerprint image sensitivity to predict cell pathophysiological status, reinforcing the translational impact both lipidome and IMS might have in clinical research.
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Affiliation(s)
- Daniel H Lopez
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain.
| | - Joan Bestard-Escalas
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain.
| | - Jone Garate
- Dep. of Physical Chemistry, University of the Basque Country (UPV/EHU), Leioa, Biscay, Spain.
| | - Albert Maimó-Barceló
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain.
| | - Roberto Fernández
- Dep. of Physical Chemistry, University of the Basque Country (UPV/EHU), Leioa, Biscay, Spain.
| | - Rebeca Reigada
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain.
| | - Sam Khorrami
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain; Gastroenterology Unit, Hospital Universitari Son Espases, Palma, Balearic Islands, Spain.
| | - Daniel Ginard
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain; Gastroenterology Unit, Hospital Universitari Son Espases, Palma, Balearic Islands, Spain.
| | - Toshiro Okazaki
- Department of Hematology/Immunity, Kanazawa Medical University, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan.
| | - José A Fernández
- Dep. of Physical Chemistry, University of the Basque Country (UPV/EHU), Leioa, Biscay, Spain.
| | - Gwendolyn Barceló-Coblijn
- Institut d'Investigació Sanitària Illes Balears (IdISBa, Health Research Institute of the Balearic Islands), Palma, Balearic Islands, Spain.
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15
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Messias MCF, Mecatti GC, Priolli DG, de Oliveira Carvalho P. Plasmalogen lipids: functional mechanism and their involvement in gastrointestinal cancer. Lipids Health Dis 2018. [PMID: 29514688 PMCID: PMC5842581 DOI: 10.1186/s12944-018-0685-9] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The plasmalogens are a class of glycerophospholipids which contain a vinyl-ether and an ester bond at the sn-1 and sn-2 positions, respectively, in the glycerol backbone. They constitute 10 mol% of the total mass of phospholipids in humans, mainly as membrane structure components. Plasmalogens are important for the organization and stability of lipid raft microdomains and cholesterol-rich membrane regions involved in cellular signaling. In addition to their structural roles, a subset of ether lipids are thought to function as endogenous antioxidants and emerging studies suggest that they are involved in cell differentiation and signaling pathways. Although the clinical significance of plasmalogens is linked to peroxisomal disorders, the pathophysiological roles and their possible metabolic pathways are not fully understood since they present unique structural attributes for the different tissue types. Studies suggest that changes in plasmalogen metabolism may contribute to the development of various types of cancer. Here, we review the molecular characteristics of plasmalogens in order to significantly increase our understanding of the plasmalogen molecule and its involvement in gastrointestinal cancers as well as other types of cancers.
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Affiliation(s)
- Márcia Cristina Fernandes Messias
- Laboratory of Multidisciplinary Research, São Francisco University, USF, São Francisco de Assis Avenue, 218, Bragança Paulista, SP, 12916-900, Brazil.
| | - Giovana Colozza Mecatti
- Laboratory of Multidisciplinary Research, São Francisco University, USF, São Francisco de Assis Avenue, 218, Bragança Paulista, SP, 12916-900, Brazil
| | - Denise Gonçalves Priolli
- Laboratory of Multidisciplinary Research, São Francisco University, USF, São Francisco de Assis Avenue, 218, Bragança Paulista, SP, 12916-900, Brazil
| | - Patrícia de Oliveira Carvalho
- Laboratory of Multidisciplinary Research, São Francisco University, USF, São Francisco de Assis Avenue, 218, Bragança Paulista, SP, 12916-900, Brazil.
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16
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Lin L, Ding Y, Wang Y, Wang Z, Yin X, Yan G, Zhang L, Yang P, Shen H. Functional lipidomics: Palmitic acid impairs hepatocellular carcinoma development by modulating membrane fluidity and glucose metabolism. Hepatology 2017; 66:432-448. [PMID: 28073184 DOI: 10.1002/hep.29033] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 11/14/2016] [Accepted: 12/26/2016] [Indexed: 01/09/2023]
Abstract
UNLABELLED Lipids are essential cellular components and energy sources of living organisms, and altered lipid composition is increasingly recognized as a signature of cancer. We performed lipidomic analysis in a series of hepatocellular carcinoma (HCC) cells and identified over 1,700 intact lipids originating from three major lipid categories. Comparative lipidomic screening revealed that 93 significantly changed lipids and decreased palmitic acyl (C16:0)-containing glycerophospholipids were positively associated with metastatic abilities of HCC cells. Furthermore, both in vitro and in vivo experiments demonstrated that C16:0 incubation specifically reduced malignant cell proliferation, impaired cell invasiveness, and suppressed tumor growth in mouse xenograft models. Biochemical experiments demonstrated that C16:0 treatment decreased cell membrane fluidity and limited glucose metabolism. A phosphoproteomics approach further revealed such C16:0 incubation attenuated phosphorylation levels of mammalian target of rapamycin (mTOR) and signal transducer and activator of transcription 3 (STAT3) pathway proteins. Multiple reaction monitoring analysis of 443 lipid molecules showed 8 reduced C16:0-containing lipids out of total 10 altered lipids when cancer tissues were compared with adjacent nontumor tissues in a cohort of clinical HCC specimens (P < 0.05). CONCLUSION These data collectively demonstrate the biomedical potential of using altered lipid metabolism as a diagnostic marker for cancerous cells and open an opportunity for treating aggressive HCCs by targeting altered C16:0 metabolism. (Hepatology 2017;66:432-448).
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Affiliation(s)
- Ling Lin
- Department of Systems Biology for Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, China
| | - Ying Ding
- Department of Systems Biology for Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Shanghai Institute for Food and Drug Control, Shanghai, China
| | - Yi Wang
- Department of Systems Biology for Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, China.,Department of Chemistry, Fudan University, Shanghai, China
| | - Zhenxin Wang
- Department of Systems Biology for Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Xuefei Yin
- Department of Systems Biology for Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Department of Chemistry, Fudan University, Shanghai, China
| | - Guoquan Yan
- Department of Chemistry, Fudan University, Shanghai, China
| | - Lei Zhang
- Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, China
| | - Pengyuan Yang
- Department of Systems Biology for Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, China.,Department of Chemistry, Fudan University, Shanghai, China
| | - Huali Shen
- Department of Systems Biology for Medicine, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences of Shanghai Medical School, Fudan University, Shanghai, China.,Department of Chemistry, Fudan University, Shanghai, China
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17
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Plasmalogen biosynthesis is spatiotemporally regulated by sensing plasmalogens in the inner leaflet of plasma membranes. Sci Rep 2017; 7:43936. [PMID: 28272479 PMCID: PMC5341075 DOI: 10.1038/srep43936] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 01/31/2017] [Indexed: 12/14/2022] Open
Abstract
Alkenyl ether phospholipids are a major sub-class of ethanolamine- and choline-phospholipids in which a long chain fatty alcohol is attached at the sn-1 position through a vinyl ether bond. Biosynthesis of ethanolamine-containing alkenyl ether phospholipids, plasmalogens, is regulated by modulating the stability of fatty acyl-CoA reductase 1 (Far1) in a manner dependent on the level of cellular plasmalogens. However, precise molecular mechanisms underlying the regulation of plasmalogen synthesis remain poorly understood. Here we show that degradation of Far1 is accelerated by inhibiting dynamin-, Src kinase-, or flotillin-1-mediated endocytosis without increasing the cellular level of plasmalogens. By contrast, Far1 is stabilized by sequestering cholesterol with nystatin. Moreover, abrogation of the asymmetric distribution of plasmalogens in the plasma membrane by reducing the expression of CDC50A encoding a β-subunit of flippase elevates the expression level of Far1 and plasmalogen synthesis without reducing the total cellular level of plasmalogens. Together, these results support a model that plasmalogens localised in the inner leaflet of the plasma membranes are sensed for plasmalogen homeostasis in cells, thereby suggesting that plasmalogen synthesis is spatiotemporally regulated by monitoring cellular level of plasmalogens.
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18
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Zacek P, Bukowski M, Rosenberger TA, Picklo M. Quantitation of isobaric phosphatidylcholine species in human plasma using a hybrid quadrupole linear ion-trap mass spectrometer. J Lipid Res 2016; 57:2225-2234. [PMID: 27688258 PMCID: PMC5321225 DOI: 10.1194/jlr.d070656] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 09/13/2016] [Indexed: 11/20/2022] Open
Abstract
Phosphatidylcholine (PC) species in human plasma are used as biomarkers of disease. PC biomarkers are often limited by the inability to separate isobaric PCs. In this work, we developed a targeted shotgun approach for analysis of isobaric and isomeric PCs. This approach is comprised of two MS methods: a precursor ion scanning (PIS) of mass m/z 184 in positive mode (PIS m/z +184) and MS3 fragmentation in negative mode, both performed on the same instrument, a hybrid triple quadrupole ion-trap mass spectrometer. The MS3 experiment identified the FA composition and the relative abundance of isobaric and sn-1, sn-2 positional isomeric PC species, which were subsequently combined with absolute quantitative data obtained by PIS m/z +184 scan. This approach was applied to the analysis of a National Institute of Standards and Technology human blood plasma standard reference material (SRM 1950). We quantified more than 70 PCs and confirmed that a majority are present in isobaric and isomeric mixtures. The FA content determined by this method was comparable to that obtained using GC with flame ionization detection, supporting the quantitative nature of this MS method. This methodology will provide more in-depth biomarker information for clinical and mechanistic studies.
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Affiliation(s)
- Petr Zacek
- USDA-ARS Grand Forks Human Nutrition Research Center, Grand Forks, ND 58203 .,Institute of Organic Chemistry and Biochemistry Academy of Sciences of the Czech Republic, 16610 Prague 6, Czech Republic
| | - Michael Bukowski
- USDA-ARS Grand Forks Human Nutrition Research Center, Grand Forks, ND 58203
| | - Thad A Rosenberger
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, University of North Dakota; Grand Forks, ND 58201
| | - Matthew Picklo
- USDA-ARS Grand Forks Human Nutrition Research Center, Grand Forks, ND 58203.,Department of Chemistry, University of North Dakota; Grand Forks, ND 58201
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19
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Fernández R, Carriel V, Lage S, Garate J, Díez-García J, Ochoa B, Castro B, Alaminos M, Fernández JA. Deciphering the Lipid Architecture of the Rat Sciatic Nerve Using Imaging Mass Spectrometry. ACS Chem Neurosci 2016; 7:624-32. [PMID: 27043994 DOI: 10.1021/acschemneuro.6b00010] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Knowledge on the normal structure and molecular composition of the peripheral nerves is essential to understand their pathophysiology and to select the regeneration strategies after injury. However, the precise lipid composition of the normal peripheral nerve is still poorly known. Here, we present the first study of distribution of individual lipids in the mature sciatic nerve of rats by imaging mass spectrometry. Both positive and negative ion modes were used to detect, identify and in situ map 166 molecular species of mainly glycerophospholipids, sphingomyelins, sulfatides, and diacyl and triacylglycerols. In parallel, lipid extracts were analyzed by LC-MS/MS to verify and complement the identification of lipids directly from the whole tissue. Three anatomical regions were clearly identified by its differential lipid composition: the nerve fibers, the connective tissue and the adipose tissue that surrounds the nerve. Unexpectedly, very little variety of phosphatidylcholine (PC) species was found, being by far PC 34:1 the most abundant species. Also, a rich composition on sulfatides was detected in fibers, probably due to the important role they play in the myelin cover around axons, as well as an abundance of storage lipids in the adipose and connective tissues. The database of lipids here presented for each region and for the whole sciatic nerve is a first step toward understanding the variety of the peripheral nerves' lipidome and its changes associated with different diseases and mechanical injuries.
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Affiliation(s)
| | - Víctor Carriel
- Tissue
Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, 18012 Granada, Spain
| | | | | | | | | | - Begoña Castro
- Histocell, S.L., Bizkaia Technology Park 800, 48160 Derio, Spain
| | - Miguel Alaminos
- Tissue
Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, 18012 Granada, Spain
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20
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Fernández R, Garate J, Lage S, Terés S, Higuera M, Bestard-Escalas J, López DH, Guardiola-Serrano F, Escribá PV, Barceló-Coblijn G, Fernández JA. Identification of Biomarkers of Necrosis in Xenografts Using Imaging Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2016; 27:244-254. [PMID: 26407555 DOI: 10.1007/s13361-015-1268-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/03/2015] [Accepted: 09/04/2015] [Indexed: 06/05/2023]
Abstract
Xenografts are commonly used to test the effect of new drugs on human cancer. However, because of their heterogeneity, analysis of the results is often controversial. Part of the problem originates in the existence of tumor cells at different metabolic stages: from metastatic to necrotic cells, as it happens in real tumors. Imaging mass spectrometry is an excellent solution for the analysis of the results as it yields detailed information not only on the composition of the tissue but also on the distribution of the biomolecules within the tissue. Here, we use imaging mass spectrometry to determine the distribution of phosphatidylcholine (PC), phosphatidylethanolamine (PE), and their plasmanyl- and plasmenylether derivatives (PC-P/O and PE-P/O) in xenografts of five different tumor cell lines: A-549, NCI-H1975, BX-PC3, HT29, and U-87 MG. The results demonstrate that the necrotic areas showed a higher abundance of Na(+) adducts and of PC-P/O species, whereas a large abundance of PE-P/O species was found in all the xenografts. Thus, the PC/PC-ether and Na(+)/K(+) ratios may highlight the necrotic areas while an increase on the number of PE-ether species may be pointing to the existence of viable tumor tissues. Furthermore, the existence of important changes in the concentration of Na(+) and K(+) adducts between different tissues has to be taken into account while interpreting the imaging mass spectrometry results. Graphical Abstract ᅟ.
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Affiliation(s)
- Roberto Fernández
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, Bilbao, 48940, Spain
| | - Jone Garate
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, Bilbao, 48940, Spain
| | - Sergio Lage
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, Bilbao, 48940, Spain
| | - Silvia Terés
- Unité de recherche Inserm 0916, Institut européen de chimie et biologie (IECB)-INSERM, 2, rue Robert Escarpit, 33607, Pessac, France
| | - Mónica Higuera
- Laboratory of Molecular and Cell Biomedicine, Department of Biology, University of the Balearic Islands, 07122, Palma, Balearic Islands, Spain
| | - Joan Bestard-Escalas
- Research Unit, Hospital Universitari Son Espases, Institut d'Investigació Sanitària de Palma (IdISPa), Ctra. Valldemossa 79, E-07010, Palma, Balearic Islands, Spain
| | - Daniel H López
- Research Unit, Hospital Universitari Son Espases, Institut d'Investigació Sanitària de Palma (IdISPa), Ctra. Valldemossa 79, E-07010, Palma, Balearic Islands, Spain
| | - Francisca Guardiola-Serrano
- Laboratory of Molecular and Cell Biomedicine, Department of Biology, University of the Balearic Islands, 07122, Palma, Balearic Islands, Spain
| | - Pablo V Escribá
- Laboratory of Molecular and Cell Biomedicine, Department of Biology, University of the Balearic Islands, 07122, Palma, Balearic Islands, Spain
| | - Gwendolyn Barceló-Coblijn
- Research Unit, Hospital Universitari Son Espases, Institut d'Investigació Sanitària de Palma (IdISPa), Ctra. Valldemossa 79, E-07010, Palma, Balearic Islands, Spain.
| | - José A Fernández
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, Bilbao, 48940, Spain.
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21
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Rojas-Betancourt S, Stutzman JR, Londry FA, Blanksby SJ, McLuckey SA. Gas-Phase Chemical Separation of Phosphatidylcholine and Phosphatidylethanolamine Cations via Charge Inversion Ion/Ion Chemistry. Anal Chem 2015; 87:11255-62. [PMID: 26477819 DOI: 10.1021/acs.analchem.5b02243] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The [M + H](+) cations formed upon electrospray ionization of the glycerophospholipids phosphatidylcholine (PC) and phosphatidylethanolamine (PE) show distinct reactivities upon gas-phase reactions with doubly deprotonated 1,4-phenylenedipropionic acid (PDPA). PC cations undergo charge inversion via adduct formation with subsequent methyl cation and proton transfer to the acid to yield [PC - CH3](-) anions. These demethylated PC anions fragment upon ion trap collision-induced dissociation (CID) to yield products that reveal fatty acid chain lengths and degrees of unsaturation. PE cations, on the other hand, undergo charge inversion via double proton transfer to the two carboxylate moieties in doubly deprotonated PDPA to yield [PE - H](-) anions. These anions also fragment upon ion trap CID to yield product ions indicative of chain lengths and degrees of unsaturation in the fatty acyl moieties. Advantage is taken of this distinct reactivity to separate isomeric and isobaric PC and PE cations present in mass spectra of lipid mixtures. A cation precursor ion population containing a mixture of PE and PC cations is mass-selected and subjected to ion/ion charge inversion reactions that result in separation of PC and PE anions into different mass-to-charge ratios. Mass selection and subsequent ion trap CID of the lipid anions allows for the characterization of the isomeric lipids within each subclass. The charge inversion approach described here is demonstrated to provide increased signal-to-noise ratios for detection of PCs and PEs relative to the standard negative ionization approach as well as improved mixture analysis performance.
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Affiliation(s)
- Stella Rojas-Betancourt
- Department of Chemistry, Purdue University , West Lafayette, Indiana 47907-2084, United States
| | - John R Stutzman
- Department of Chemistry, Purdue University , West Lafayette, Indiana 47907-2084, United States
| | - Frank A Londry
- AB SCIEX , 71 Four Valley Drive, Concord, Ontario L4K 4 V8, Canada
| | - Stephen J Blanksby
- Central Analytical Research Facility, Queensland University of Technology , Brisbane, QLD 4000, Australia
| | - Scott A McLuckey
- Department of Chemistry, Purdue University , West Lafayette, Indiana 47907-2084, United States
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22
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Lydic TA, Townsend S, Adda CG, Collins C, Mathivanan S, Reid GE. Rapid and comprehensive 'shotgun' lipidome profiling of colorectal cancer cell derived exosomes. Methods 2015; 87:83-95. [PMID: 25907253 DOI: 10.1016/j.ymeth.2015.04.014] [Citation(s) in RCA: 135] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 03/24/2015] [Accepted: 04/14/2015] [Indexed: 10/23/2022] Open
Abstract
There is an increasing recognition of the role that cancer cell derived exosomes play in intercellular signaling upon fusion or uptake with a target cell, including immune system evasion, tumor growth and metastasis. To date, however, although exosomal membrane and cargo lipids are expected to play a pivotal role in exosome biogenesis and secretion, as well as in fusion or uptake and target cell functional response, the detailed characterization of cancer cell derived exosome lipids across a range of different cancers has not yet been broadly explored. Here, a simple and straightforward lipidome analysis strategy consisting of optimized sample extraction and novel sample derivatization techniques, coupled with high-resolution 'shotgun' mass spectrometry and 'targeted' tandem mass spectrometry methods, is demonstrated for the rapid identification of >520 individual lipids in 36 lipid classes and sub classes from exosomes secreted by the colorectal cancer cell line, LIM1215. Relative quantification and comparison of exosome versus cellular lipid profiles reveals significant enrichment of certain lipid classes, as well as substantial lipid subclass remodeling and changes in abundance of individual lipids, including sphingolipids, sterol lipids, glycerolipids and glycerophospholipids, and particularly plasmalogen- and alkyl ether-containing glycerophospholipids. This analysis strategy therefore provides a platform for comprehensive lipidome profiling across a wide range of cancer cell or tissue derived exosomes, that will facilitate subsequent functional studies aimed at elucidating the role of specific cellular or exosome lipids in the onset and progression of colorectal cancer, or to identify specific lipid(s) that could serve as effective diagnostic or prognostic disease biomarkers.
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Affiliation(s)
- Todd A Lydic
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA
| | - Steven Townsend
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
| | - Christopher G Adda
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Christine Collins
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Suresh Mathivanan
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Gavin E Reid
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA; School of Chemistry, Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.
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23
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Fuchs B. Analytical methods for (oxidized) plasmalogens: Methodological aspects and applications. Free Radic Res 2015; 49:599-617. [DOI: 10.3109/10715762.2014.999675] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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24
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Gorden DL, Myers DS, Ivanova PT, Fahy E, Maurya MR, Gupta S, Min J, Spann NJ, McDonald JG, Kelly SL, Duan J, Sullards MC, Leiker TJ, Barkley RM, Quehenberger O, Armando AM, Milne SB, Mathews TP, Armstrong MD, Li C, Melvin WV, Clements RH, Washington MK, Mendonsa AM, Witztum JL, Guan Z, Glass CK, Murphy RC, Dennis EA, Merrill AH, Russell DW, Subramaniam S, Brown HA. Biomarkers of NAFLD progression: a lipidomics approach to an epidemic. J Lipid Res 2015; 56:722-736. [PMID: 25598080 DOI: 10.1194/jlr.p056002] [Citation(s) in RCA: 237] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The spectrum of nonalcoholic fatty liver disease (NAFLD) includes steatosis, nonalcoholic steatohepatitis (NASH), and cirrhosis. Recognition and timely diagnosis of these different stages, particularly NASH, is important for both potential reversibility and limitation of complications. Liver biopsy remains the clinical standard for definitive diagnosis. Diagnostic tools minimizing the need for invasive procedures or that add information to histologic data are important in novel management strategies for the growing epidemic of NAFLD. We describe an "omics" approach to detecting a reproducible signature of lipid metabolites, aqueous intracellular metabolites, SNPs, and mRNA transcripts in a double-blinded study of patients with different stages of NAFLD that involves profiling liver biopsies, plasma, and urine samples. Using linear discriminant analysis, a panel of 20 plasma metabolites that includes glycerophospholipids, sphingolipids, sterols, and various aqueous small molecular weight components involved in cellular metabolic pathways, can be used to differentiate between NASH and steatosis. This identification of differential biomolecular signatures has the potential to improve clinical diagnosis and facilitate therapeutic intervention of NAFLD.
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Affiliation(s)
- D Lee Gorden
- Departments of Surgery, Vanderbilt University Medical Center, Nashville, TN; Cancer Biology, Vanderbilt University Medical Center, Nashville, TN
| | - David S Myers
- Pharmacology, Vanderbilt University Medical Center, Nashville, TN
| | | | - Eoin Fahy
- Department of Bioengineering, School of Engineering, University of California, San Diego, La Jolla, CA
| | - Mano R Maurya
- Department of Bioengineering, School of Engineering, University of California, San Diego, La Jolla, CA
| | - Shakti Gupta
- Department of Bioengineering, School of Engineering, University of California, San Diego, La Jolla, CA
| | - Jun Min
- Department of Bioengineering, School of Engineering, University of California, San Diego, La Jolla, CA
| | - Nathanael J Spann
- Departments of Cellular and Molecular Medicine and Medicine, University of California, San Diego, La Jolla, CA
| | - Jeffrey G McDonald
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX
| | - Samuel L Kelly
- Schools of Biology, Chemistry, and Biochemistry, and the Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA
| | - Jingjing Duan
- Schools of Biology, Chemistry, and Biochemistry, and the Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA
| | - M Cameron Sullards
- Schools of Biology, Chemistry, and Biochemistry, and the Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA
| | - Thomas J Leiker
- Department of Pharmacology, University of Colorado at Denver, Aurora, CO
| | - Robert M Barkley
- Department of Pharmacology, University of Colorado at Denver, Aurora, CO
| | - Oswald Quehenberger
- Departments of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA; Pharmacology, School of Medicine, University of California, San Diego, La Jolla, CA
| | - Aaron M Armando
- Pharmacology, School of Medicine, University of California, San Diego, La Jolla, CA
| | - Stephen B Milne
- Pharmacology, Vanderbilt University Medical Center, Nashville, TN
| | - Thomas P Mathews
- Pharmacology, Vanderbilt University Medical Center, Nashville, TN
| | | | - Chijun Li
- Department of Biochemistry, Duke University Medical Center, Durham, NC
| | - Willie V Melvin
- Departments of Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Ronald H Clements
- Departments of Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - M Kay Washington
- Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN
| | | | - Joseph L Witztum
- Departments of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA
| | - Ziqiang Guan
- Department of Biochemistry, Duke University Medical Center, Durham, NC
| | - Christopher K Glass
- Departments of Cellular and Molecular Medicine and Medicine, University of California, San Diego, La Jolla, CA
| | - Robert C Murphy
- Department of Pharmacology, University of Colorado at Denver, Aurora, CO
| | - Edward A Dennis
- Pharmacology, School of Medicine, University of California, San Diego, La Jolla, CA; Chemistry and Biochemistry, School of Medicine, University of California, San Diego, La Jolla, CA
| | - Alfred H Merrill
- Schools of Biology, Chemistry, and Biochemistry, and the Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA
| | - David W Russell
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX
| | - Shankar Subramaniam
- Department of Bioengineering, School of Engineering, University of California, San Diego, La Jolla, CA; Chemistry and Biochemistry, School of Medicine, University of California, San Diego, La Jolla, CA.
| | - H Alex Brown
- Pharmacology, Vanderbilt University Medical Center, Nashville, TN; Biochemistry, and the Vanderbilt Institute of Chemical Biology, Vanderbilt University Medical Center, Nashville, TN.
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25
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Saab S, Mazzocco J, Creuzot-Garcher CP, Bron AM, Bretillon L, Acar N. Plasmalogens in the retina: From occurrence in retinal cell membranes to potential involvement in pathophysiology of retinal diseases. Biochimie 2014; 107 Pt A:58-65. [DOI: 10.1016/j.biochi.2014.07.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 07/26/2014] [Indexed: 10/24/2022]
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26
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Cífková E, Holčapek M, Lísa M, Vrána D, Gatěk J, Melichar B. Determination of lipidomic differences between human breast cancer and surrounding normal tissues using HILIC-HPLC/ESI-MS and multivariate data analysis. Anal Bioanal Chem 2014; 407:991-1002. [PMID: 25352274 DOI: 10.1007/s00216-014-8272-z] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Revised: 09/10/2014] [Accepted: 10/14/2014] [Indexed: 11/28/2022]
Abstract
The comprehensive approach for the lipidomic characterization of human breast cancer and surrounding normal tissues is based on hydrophilic interaction liquid chromatography (HILIC)-electrospray ionization mass spectrometry (ESI-MS) quantitation of polar lipid classes of total lipid extracts followed by multivariate data analysis using unsupervised principal component analysis (PCA) and supervised orthogonal partial least square (OPLS). This analytical methodology is applied for the detailed lipidomic characterization of ten patients with the goal to find the statistically relevant differences between tumor and normal tissues. This strategy is selected for better visualization of differences, because the breast cancer tissue is compared with the surrounding healthy tissue of the same patient, therefore changes in the lipidome are caused predominantly by the tumor growth. A large increase of total concentrations for several lipid classes is observed, including phosphatidylinositols, phosphatidylethanolamines, phosphatidylcholines, and lysophosphatidylcholines. Concentrations of individual lipid species inside the abovementioned classes are also changed, and in some cases, these differences are statistically significant. PCA and OPLS analyses enable a clear differentiation of tumor and normal tissues based on changes of their lipidome. A notable decrease of relative abundances of ether and vinylether (plasmalogen) lipid species is detected for phosphatidylethanolamines, but no difference is apparent for phosphatidylcholines.
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Affiliation(s)
- Eva Cífková
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic
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27
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Fernández R, Lage S, Abad-García B, Barceló-Coblijn G, Terés S, López DH, Guardiola-Serrano F, Martín ML, Escribá PV, Fernández JA. Analysis of the lipidome of xenografts using MALDI-IMS and UHPLC-ESI-QTOF. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2014; 25:1237-1246. [PMID: 24760294 DOI: 10.1007/s13361-014-0882-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 03/10/2014] [Accepted: 03/10/2014] [Indexed: 06/03/2023]
Abstract
Human tumor xenografts in immunodeficient mice are a very popular model to study the development of cancer and to test new drug candidates. Among the parameters analyzed are the variations in the lipid composition, as they are good indicators of changes in the cellular metabolism. Here, we present a study on the distribution of lipids in xenografts of NCI-H1975 human lung cancer cells, using MALDI imaging mass spectrometry and UHPLC-ESI-QTOF. The identification of lipids directly from the tissue by MALDI was aided by the comparison with identification using ESI ionization in lipid extracts from the same xenografts. Lipids belonging to PCs, PIs, SMs, DAG, TAG, PS, PA, and PG classes were identified and their distribution over the xenograft was determined. Three areas were identified in the xenograft, corresponding to cells in different metabolic stages and to a layer of adipose tissue that covers the xenograft.
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Affiliation(s)
- Roberto Fernández
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Leioa, Spain
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28
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Mirnezami R, Spagou K, Vorkas PA, Lewis MR, Kinross J, Want E, Shion H, Goldin RD, Darzi A, Takats Z, Holmes E, Cloarec O, Nicholson JK. Chemical mapping of the colorectal cancer microenvironment via MALDI imaging mass spectrometry (MALDI-MSI) reveals novel cancer-associated field effects. Mol Oncol 2014; 8:39-49. [PMID: 24112879 PMCID: PMC5528498 DOI: 10.1016/j.molonc.2013.08.010] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 08/08/2013] [Accepted: 08/26/2013] [Indexed: 12/29/2022] Open
Abstract
Matrix-assisted laser desorption ionisation imaging mass spectrometry (MALDI-MSI) is a rapidly advancing technique for intact tissue analysis that allows simultaneous localisation and quantification of biomolecules in different histological regions of interest. This approach can potentially offer novel insights into tumour microenvironmental (TME) biochemistry. In this study we employed MALDI-MSI to evaluate fresh frozen sections of colorectal cancer (CRC) tissue and adjacent healthy mucosa obtained from 12 consenting patients undergoing surgery for confirmed CRC. Specifically, we sought to address three objectives: (1) To identify biochemical differences between different morphological regions within the CRC TME; (2) To characterise the biochemical differences between cancerous and healthy colorectal tissue using MALDI-MSI; (3) To determine whether MALDI-MSI profiling of tumour-adjacent tissue can identify novel metabolic 'field effects' associated with cancer. Our results demonstrate that CRC tissue harbours characteristic phospholipid signatures compared with healthy tissue and additionally, different tissue regions within the CRC TME reveal distinct biochemical profiles. Furthermore we observed biochemical differences between tumour-adjacent and tumour-remote healthy mucosa. We have referred to this 'field effect', exhibited by the tumour locale, as cancer-adjacent metaboplasia (CAM) and this finding builds on the established concept of field cancerisation.
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Affiliation(s)
- R Mirnezami
- Biosurgery and Surgical Technology, Department of Surgery and Cancer, Faculty of Medicine, St. Mary's Hospital, Imperial College London, W2 1NY London, UK
| | - K Spagou
- Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, SW7 2AZ London, UK
| | - P A Vorkas
- Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, SW7 2AZ London, UK
| | - M R Lewis
- Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, SW7 2AZ London, UK
| | - J Kinross
- Biosurgery and Surgical Technology, Department of Surgery and Cancer, Faculty of Medicine, St. Mary's Hospital, Imperial College London, W2 1NY London, UK
| | - E Want
- Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, SW7 2AZ London, UK
| | - H Shion
- Department of Metabolic Profiling, Waters Corporation, Milford, MA 01757, USA
| | - R D Goldin
- Centre for Pathology, Department of Medicine, Faculty of Medicine, St. Mary's Hospital, Imperial College London, W2 1NY London, UK
| | - A Darzi
- Biosurgery and Surgical Technology, Department of Surgery and Cancer, Faculty of Medicine, St. Mary's Hospital, Imperial College London, W2 1NY London, UK
| | - Z Takats
- Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, SW7 2AZ London, UK
| | - E Holmes
- Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, SW7 2AZ London, UK
| | - O Cloarec
- Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, SW7 2AZ London, UK; Korrigan Sciences Ltd., 9 Imperial Place, Maidenhead SL6 2GN, UK.
| | - J K Nicholson
- Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, SW7 2AZ London, UK
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29
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Bergan J, Skotland T, Sylvänne T, Simolin H, Ekroos K, Sandvig K. The ether lipid precursor hexadecylglycerol causes major changes in the lipidome of HEp-2 cells. PLoS One 2013; 8:e75904. [PMID: 24098742 PMCID: PMC3786967 DOI: 10.1371/journal.pone.0075904] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Accepted: 08/20/2013] [Indexed: 01/22/2023] Open
Abstract
The ether-lipid precursor sn-1-O-hexadecylglycerol (HG) can be used to compensate for early metabolic defects in ether-lipid biosynthesis. To investigate a possible metabolic link between ether-linked phospholipids and the rest of the cellular lipidome, we incubated HEp-2 cells with HG. Mass spectrometry analysis revealed major changes in the lipidome of HG-treated cells compared to that of untreated cells or cells treated with palmitin, a control substance for HG containing an acyl group instead of the ether group. We present quantitative data for a total of 154 species from 17 lipid classes. These species are those constituting more than 2% of their lipid class for most lipid classes, but more than 1% for the ether lipids and glycosphingolipids. In addition to the expected ability of HG to increase the levels of ether-linked glycerophospholipids with 16 carbon atoms in the sn-1 position, this precursor also decreased the amounts of glycosphingolipids and increased the amounts of ceramide, phosphatidylinositol and lysophosphatidylinositol. However, incubation with palmitin, the fatty acyl analogue of HG, also increased the amounts of ceramide and phosphatidylinositols. Thus, changes in these lipid classes were not ether lipid-dependent. No major effects were observed for the other lipid classes, and cellular functions such as growth and endocytosis were unaffected. The data presented clearly demonstrate the importance of performing detailed quantitative lipidomic studies to reveal how the metabolism of ether-linked glycerophospholipids is coupled to that of glycosphingolipids and ester-linked glycerophospholipids, especially phosphatidylinositols.
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Affiliation(s)
- Jonas Bergan
- Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Biochemistry, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
- Department of Biosciences, University of Oslo, Oslo, Norway
| | - Tore Skotland
- Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Biochemistry, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | | | | | | | - Kirsten Sandvig
- Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Biochemistry, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
- Department of Biosciences, University of Oslo, Oslo, Norway
- * E-mail:
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30
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Ritchie SA, Akita H, Takemasa I, Eguchi H, Pastural E, Nagano H, Monden M, Doki Y, Mori M, Jin W, Sajobi TT, Jayasinghe D, Chitou B, Yamazaki Y, White T, Goodenowe DB. Metabolic system alterations in pancreatic cancer patient serum: potential for early detection. BMC Cancer 2013; 13:416. [PMID: 24024929 PMCID: PMC3847543 DOI: 10.1186/1471-2407-13-416] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 09/02/2013] [Indexed: 12/17/2022] Open
Abstract
Background The prognosis of pancreatic cancer (PC) is one of the poorest among all cancers, due largely to the lack of methods for screening and early detection. New biomarkers for identifying high-risk or early-stage subjects could significantly impact PC mortality. The goal of this study was to find metabolic biomarkers associated with PC by using a comprehensive metabolomics technology to compare serum profiles of PC patients to healthy control subjects. Methods A non-targeted metabolomics approach based on high-resolution, flow-injection Fourier transform ion cyclotron resonance mass spectrometry (FI-FTICR-MS) was used to generate comprehensive metabolomic profiles containing 2478 accurate mass measurements from the serum of Japanese PC patients (n=40) and disease-free subjects (n=50). Targeted flow-injection tandem mass spectrometry (FI-MS/MS) assays for specific metabolic systems were developed and used to validate the FI-FTICR-MS results. A FI-MS/MS assay for the most discriminating metabolite discovered by FI-FTICR-MS (PC-594) was further validated in two USA Caucasian populations; one comprised 14 PCs, six intraductal papillary mucinous neoplasims (IPMN) and 40 controls, and a second comprised 1000 reference subjects aged 30 to 80, which was used to create a distribution of PC-594 levels among the general population. Results FI-FTICR-MS metabolomic analysis showed significant reductions in the serum levels of metabolites belonging to five systems in PC patients compared to controls (all p<0.000025). The metabolic systems included 36-carbon ultra long-chain fatty acids, multiple choline-related systems including phosphatidylcholines, lysophosphatidylcholines and sphingomyelins, as well as vinyl ether-containing plasmalogen ethanolamines. ROC-AUCs based on FI-MS/MS of selected markers from each system ranged between 0.93 ±0.03 and 0.97 ±0.02. No significant correlations between any of the systems and disease-stage, gender, or treatment were observed. Biomarker PC-594 (an ultra long-chain fatty acid), was further validated using an independently-collected US Caucasian population (blinded analysis, n=60, p=9.9E-14, AUC=0.97 ±0.02). PC-594 levels across 1000 reference subjects showed an inverse correlation with age, resulting in a drop in the AUC from 0.99 ±0.01 to 0.90 ±0.02 for subjects aged 30 to 80, respectively. A PC-594 test positivity rate of 5.0% in low-risk reference subjects resulted in a PC sensitivity of 87% and a significant improvement in net clinical benefit based on decision curve analysis. Conclusions The serum metabolome of PC patients is significantly altered. The utility of serum metabolite biomarkers, particularly PC-594, for identifying subjects with elevated risk of PC should be further investigated.
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Fhaner CJ, Liu S, Zhou X, Reid GE. Functional group selective derivatization and gas-phase fragmentation reactions of plasmalogen glycerophospholipids. Mass Spectrom (Tokyo) 2013; 2:S0015. [PMID: 24349934 DOI: 10.5702/massspectrometry.s0015] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 11/15/2012] [Indexed: 01/06/2023] Open
Abstract
A reaction strategy involving functional group selective modification of the O-alkenyl-ether double bond within plasmenyl ether containing lipids using iodine and methanol, in conjunction with functional group selective derivatization of amine-containing lipids using a novel (13)C1-S,S'-dimethylthiobutanoylhydroxysuccinimide ester ((13)C1-DMBNHS) reagent, is shown to improve the capabilities of 'shotgun' high resolution/accurate mass spectrometry for comprehensive lipidome analysis. Importantly, the characteristic mass shifts introduced as a result of these derivatization reactions enables the resolution and unambiguous identification of isobaric mass plasmenyl- and plasmanyl-ether containing lipid species from within crude complex lipid extracts, without need for chromatographic fractionation or additional lipid extraction steps prior to analysis. Additionally, the positive ionization mode tandem mass spectrometry fragmentation behavior of the derivatized plasmenyl ether containing glycerophosphocholine and glycerophosphoethanolamine lipids are shown to yield abundant characteristic product ions that directly enable the assignment of their molecular lipid identities.
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Affiliation(s)
| | | | | | - Gavin E Reid
- Department of Chemistry ; Department of Biochemistry and Molecular Biology, Michigan State University
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Abaffy T, Möller MG, Riemer DD, Milikowski C, DeFazio RA. Comparative analysis of volatile metabolomics signals from melanoma and benign skin: a pilot study. Metabolomics 2013; 9:998-1008. [PMID: 24039618 PMCID: PMC3769583 DOI: 10.1007/s11306-013-0523-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 03/15/2013] [Indexed: 12/20/2022]
Abstract
The analysis of volatile organic compounds (VOC) as biomarkers of cancer is both promising and challenging. In this pilot study, we used an untargeted approach to compare volatile metabolomic signatures of melanoma and matched control non-neoplastic skin from the same patient. VOC from fresh (non-fixed) biopsied tissue were collected using the headspace solid phase micro extraction method (HS SPME) and analyzed by gas chromatography and mass spectrometry (GCMS). We applied the XCMS analysis platform and MetaboAnalyst software to reveal many differentially expressed metabolic features. Our analysis revealed increased levels of lauric acid (C12:0) and palmitic acid (C16:0) in melanoma. The identity of these compounds was confirmed by comparison with chemical standards. Increased levels of these fatty acids are likely to be a consequence of up-regulated de novo lipid synthesis, a known characteristic of cancer. Increased oxidative stress is likely to cause an additional increase in lauric acid. Implementation of this study design on larger number of cases will be necessary for the future metabolomics biomarker discovery applications.
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Affiliation(s)
- T. Abaffy
- Molecular and Cellular Pharmacology, University of Miami, Miami, FL USA
| | - M. G. Möller
- Division of Surgical Oncology, DeWitt Daughtry Department of Surgery, University of Miami, Miami, FL USA
| | - D. D. Riemer
- Marine and Atmospheric Chemistry, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL USA
| | - C. Milikowski
- Department of Pathology, University of Miami, Miami, FL USA
| | - R. A. DeFazio
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI USA
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Fhaner CJ, Liu S, Ji H, Simpson RJ, Reid GE. Comprehensive lipidome profiling of isogenic primary and metastatic colon adenocarcinoma cell lines. Anal Chem 2012; 84:8917-26. [PMID: 23039336 DOI: 10.1021/ac302154g] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A "shotgun" lipidomics strategy consisting of sequential functional group selective chemical modification reactions coupled with high-resolution/accurate mass spectrometry and "targeted" tandem mass spectrometry (MS/MS) analysis has been developed and applied toward the comprehensive identification, characterization and quantitative analysis of changes in relative abundances of >600 individual glycerophospholipid, glycerolipid, sphingolipid and sterol lipids between a primary colorectal cancer (CRC) cell line, SW480, and its isogenic lymph node metastasized derivative, SW620. Selective chemical derivatization of glycerophosphoethanolamine and glycerophosphoserine lipids using a "fixed charge" sulfonium ion containing, d(6)-S,S'-dimethylthiobutanoylhydroxysuccinimide ester (d(6)-DMBNHS) reagent was used to eliminate the possibility of isobaric mass overlap of these species with the precursor ions of all other lipids in the crude extracts, thereby enabling their unambiguous assignment, while subsequent selective mild acid hydrolysis of plasmenyl (vinyl-ether) containing lipids using formic acid enabled these species to be readily differentiated from isobaric mass plasmanyl (alkyl-ether) containing lipids. Using this approach, statistically significant differences in the abundances of numerous lipid species previously identified as being associated with cancer progression or that play known roles as mediators in a range of physiological and pathological processes were observed between the SW480 and SW620 cells. Most notably, these included increased plasmanylcholine and triglyceride lipid levels, decreased plasmenylethanolamine lipids, decreased C-16 containing sphingomyelin and ceramide lipid levels, and a dramatic increase in the abundances of total cholesterol ester and triglyceride lipids in the SW620 cells compared to those in the SW480 cells.
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Affiliation(s)
- Cassie J Fhaner
- Department of Chemistry, Michigan State University, 578 South Shaw Lane, East Lansing, Michigan 48824, United States
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Wood PL, Khan MA, Smith T, Goodenowe DB. Cellular diamine levels in cancer chemoprevention: modulation by ibuprofen and membrane plasmalogens. Lipids Health Dis 2011; 10:214. [PMID: 22087745 PMCID: PMC3231815 DOI: 10.1186/1476-511x-10-214] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Accepted: 11/16/2011] [Indexed: 02/01/2023] Open
Abstract
Background To develop effective strategies in cancer chemoprevention, an increased understanding of endogenous biochemical mediators that block metastatic processes is critically needed. Dietary lipids and non-steroidal anti-inflammatory drugs (NSAIDs) have a published track record of providing protection against gastrointestinal malignancies. In this regard, we examined the effects of membrane plasmalogens and ibuprofen on regulation of cellular levels of diamines, polyamine mediators that are augmented in cancer cells. For these studies we utilized Chinese hamster ovary (CHO) cells and NRel-4 cells, a CHO cell line with defective plasmalogen synthesis. Results NRel-4 cells, which possess cellular plasmalogen levels that are 10% of control CHO cells, demonstrated 2- to 3-fold increases in cellular diamine levels. These diamine levels were normalized by plasmalogen replacement and significantly reduced by ibuprofen. In both cases the mechanism of action appears to mainly involve increased diamine efflux via the diamine exporter. The actions of ibuprofen were not stereospecific, supporting previous studies that cyclooxygenase (COX) inhibition is unlikely to be involved in the ability of NSAIDs to reduce intracellular diamine levels. Conclusions Our data demonstrate that ibuprofen, a drug known to reduce the risk of colorectal cancer, reduces cellular diamine levels via augmentation of diamine efflux. Similarly, augmentation of membrane plasmalogens can increase diamine export from control and plasmalogen-deficient cells. These data support the concept that membrane transporter function may be a therapeutic point of intervention for dietary and pharmacological approaches to cancer chemoprevention.
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Affiliation(s)
- Paul L Wood
- Dept of Pharmacology, DeBusk College of Osteopathic Medicine, Lincoln Memorial University, 6965 Cumberland Gap Pkwy, Harrogate, TN 37752, USA.
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Plasmalogens the neglected regulatory and scavenging lipid species. Chem Phys Lipids 2011; 164:573-89. [PMID: 21723266 DOI: 10.1016/j.chemphyslip.2011.06.008] [Citation(s) in RCA: 230] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 06/08/2011] [Accepted: 06/14/2011] [Indexed: 12/17/2022]
Abstract
Plasmalogens are a class of phospholipids carrying a vinyl ether bond in sn-1 and an ester bond in sn-2 position of the glycerol backbone. Although they are widespread in all tissues and represent up to 18% of the total phospholipid mass in humans, their physiological function is still poorly understood. The aim of this review is to give an overview over the current knowledge in plasmalogen biology and pathology with an emphasis on neglected aspects of their involvement in neurological and metabolic diseases. Furthermore a better understanding of plasmalogen biology in health and disease could also lead to the development of better diagnostic and prognostic biomarkers for vascular and metabolic diseases such as obesity and diabetes mellitus, inflammation, neuro-degeneration and cancer.
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Jayalakshmi K, Sonkar K, Behari A, Kapoor VK, Sinha N. Lipid profiling of cancerous and benign gallbladder tissues by 1H NMR spectroscopy. NMR IN BIOMEDICINE 2011; 24:335-342. [PMID: 22945290 DOI: 10.1002/nbm.1594] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Revised: 05/24/2010] [Accepted: 07/04/2010] [Indexed: 06/01/2023]
Abstract
Qualitative and quantitative (1) H NMR analysis of lipid extracts of gallbladder tissue in chronic cholecystitis (CC, benign) (n = 14), xanthogranulomatous cholecystitis (XGC, intermediate) (n = 9) and gallbladder cancer (GBC, malignant) (n = 8) was carried out to understand the mechanisms involved in the transformation of benign gallbladder tissue to intermediate and malignant tissue. The results revealed alterations in various tissue lipid components in gallbladder in CC, XGC and GBC. The difference in the nature of lipid components in benign and malignant disease may aid in the identification of the biological pathways involved in the etiopathogenesis of GBC. This is the first study on lipid profiling of gallbladder tissue by (1) H NMR spectroscopy, and has possible implications for the development of future diagnostic approaches.
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Yang J, Yang S, Gao X, Yuan YJ. Integrative investigation of lipidome and signal pathways in human endothelial cells under oxidative stress. MOLECULAR BIOSYSTEMS 2011; 7:2428-40. [DOI: 10.1039/c1mb00002k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Gassler N, Klaus C, Kaemmerer E, Reinartz A. Modifier-concept of colorectal carcinogenesis: Lipidomics as a technical tool in pathway analysis. World J Gastroenterol 2010; 16:1820-7. [PMID: 20397257 PMCID: PMC2856820 DOI: 10.3748/wjg.v16.i15.1820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In the modifier concept of intestinal carcinogenesis, lipids have been established as important variables and one focus is given to long-chain fatty acids. Increased consumption of long-chain fatty acids is in discussion to modify the development of colorectal carcinoma in humans. Saturated long-chain fatty acids, in particular, are assumed to promote carcinogenesis, whereas polyunsaturated forms are likely to act in the opposite way. At present, the molecular mechanisms behind these effects are not well understood. Recently, it has been demonstrated by lipidomics and associated molecular techniques, that activation and metabolic channeling of long-chain fatty acids are important mechanisms to modify colorectal carcinogenesis. In this Editorial, an overview about the present concept of long-chain fatty acids and its derivatives in colorectal carcinogenesis as well as technical algorithms in lipid analysis is given.
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Ivanova PT, Milne SB, Brown HA. Identification of atypical ether-linked glycerophospholipid species in macrophages by mass spectrometry. J Lipid Res 2009; 51:1581-90. [PMID: 19965583 DOI: 10.1194/jlr.d003715] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
A large scale profiling and analysis of glycerophospholipid species in macrophages has facilitated the identification of several rare and atypical glycerophospholipid species. By using liquid chromatography tandem mass spectrometry and comparison of the elution and fragmentation properties of the rare lipids to synthetic standards, we were able to identify an array of ether-linked phosphatidylinositols (PIs), phosphatidic acids, phosphatidylserines (PSs), very long chain phosphatidylethanolamines (PEs), and phosphatidylcholines (PCs) as well as phosphatidylthreonines (PTs) and a wide collection of odd carbon fatty acid-containing phospholipids in macrophages. A comprehensive qualitative analysis of glycerophospholipids from different macrophage cells was conducted. During the phospholipid profiling of the macrophage-like RAW 264.7 cells, we identified dozens of rare or previously uncharacterized phospholipids, including ether-linked PIs, PSs, and glycerophosphatidic acids, PTs, and PCs and PTs containing very long polyunsaturated fatty acids. Additionally, large numbers of phospholipids containing at least one odd carbon fatty acid were identified. Using the same methodology, we also identified many of the same species of glycerophospholipids in resident peritoneal macrophages, foam cells, and murine bone marrow derived macrophages.
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Affiliation(s)
- Pavlina T Ivanova
- Department of Pharmacology and Chemistry, Vanderbilt University Medical Center, Nashville, TN 37232, USA
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