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Cebolla VL, Jarne C, Vela J, Garriga R, Membrado L, Galbán J. Scanning densitometry and mass spectrometry for HPTLC analysis of lipids: The last 10 years. J LIQ CHROMATOGR R T 2021. [DOI: 10.1080/10826076.2020.1866600] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | - Carmen Jarne
- Instituto de Carboquímica, ICB-CSIC, Zaragoza, Spain
| | - Jesús Vela
- Departamento de Química Analítica, EINA, Universidad de Zaragoza, Zaragoza, Spain
| | - Rosa Garriga
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, Spain
| | - Luis Membrado
- Instituto de Carboquímica, ICB-CSIC, Zaragoza, Spain
| | - Javier Galbán
- Departamento de Química Analítica, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, Spain
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2
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Butler LM, Perone Y, Dehairs J, Lupien LE, de Laat V, Talebi A, Loda M, Kinlaw WB, Swinnen JV. Lipids and cancer: Emerging roles in pathogenesis, diagnosis and therapeutic intervention. Adv Drug Deliv Rev 2020; 159:245-293. [PMID: 32711004 PMCID: PMC7736102 DOI: 10.1016/j.addr.2020.07.013] [Citation(s) in RCA: 273] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/02/2020] [Accepted: 07/16/2020] [Indexed: 02/06/2023]
Abstract
With the advent of effective tools to study lipids, including mass spectrometry-based lipidomics, lipids are emerging as central players in cancer biology. Lipids function as essential building blocks for membranes, serve as fuel to drive energy-demanding processes and play a key role as signaling molecules and as regulators of numerous cellular functions. Not unexpectedly, cancer cells, as well as other cell types in the tumor microenvironment, exploit various ways to acquire lipids and extensively rewire their metabolism as part of a plastic and context-dependent metabolic reprogramming that is driven by both oncogenic and environmental cues. The resulting changes in the fate and composition of lipids help cancer cells to thrive in a changing microenvironment by supporting key oncogenic functions and cancer hallmarks, including cellular energetics, promoting feedforward oncogenic signaling, resisting oxidative and other stresses, regulating intercellular communication and immune responses. Supported by the close connection between altered lipid metabolism and the pathogenic process, specific lipid profiles are emerging as unique disease biomarkers, with diagnostic, prognostic and predictive potential. Multiple preclinical studies illustrate the translational promise of exploiting lipid metabolism in cancer, and critically, have shown context dependent actionable vulnerabilities that can be rationally targeted, particularly in combinatorial approaches. Moreover, lipids themselves can be used as membrane disrupting agents or as key components of nanocarriers of various therapeutics. With a number of preclinical compounds and strategies that are approaching clinical trials, we are at the doorstep of exploiting a hitherto underappreciated hallmark of cancer and promising target in the oncologist's strategy to combat cancer.
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Affiliation(s)
- Lisa M Butler
- Adelaide Medical School and Freemasons Foundation Centre for Men's Health, University of Adelaide, Adelaide, SA 5005, Australia; South Australian Health and Medical Research Institute, Adelaide, SA 5000, Australia
| | - Ylenia Perone
- Department of Surgery and Cancer, Imperial College London, Imperial Centre for Translational and Experimental Medicine, London, UK
| | - Jonas Dehairs
- Laboratory of Lipid Metabolism and Cancer, KU Leuven Cancer Institute, 3000 Leuven, Belgium
| | - Leslie E Lupien
- Program in Experimental and Molecular Medicine, Geisel School of Medicine at Dartmouth, 1 Medical Center Drive, Lebanon, NH 037560, USA
| | - Vincent de Laat
- Laboratory of Lipid Metabolism and Cancer, KU Leuven Cancer Institute, 3000 Leuven, Belgium
| | - Ali Talebi
- Laboratory of Lipid Metabolism and Cancer, KU Leuven Cancer Institute, 3000 Leuven, Belgium
| | - Massimo Loda
- Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
| | - William B Kinlaw
- The Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, 1 Medical Center Drive, Lebanon, NH 03756, USA
| | - Johannes V Swinnen
- Laboratory of Lipid Metabolism and Cancer, KU Leuven Cancer Institute, 3000 Leuven, Belgium.
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3
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Hiratsuka T, Arakawa Y, Yajima Y, Kakimoto Y, Shima K, Yamazaki Y, Ikegami M, Yamamoto T, Fujiwake H, Fujimoto K, Yamada N, Tsuruyama T. Hierarchical Cluster and Region of Interest Analyses Based on Mass Spectrometry Imaging of Human Brain Tumours. Sci Rep 2020; 10:5757. [PMID: 32238824 PMCID: PMC7113320 DOI: 10.1038/s41598-020-62176-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 03/06/2020] [Indexed: 12/31/2022] Open
Abstract
Imaging mass spectrometry (IMS) has been rarely used to examine specimens of human brain tumours. In the current study, high quality brain tumour samples were selected by tissue observation. Further, IMS analysis was combined with a new hierarchical cluster analysis (IMS-HCA) and region of interest analysis (IMS-ROI). IMS-HCA was successful in creating groups consisting of similar signal distribution images of glial fibrillary acidic protein (GFAP) and related multiple proteins in primary brain tumours. This clustering data suggested the relation of GFAP and these identified proteins in the brain tumorigenesis. Also, high levels of histone proteins, haemoglobin subunit α, tubulins, and GFAP were identified in a metastatic brain tumour using IMS-ROI. Our results show that IMS-HCA and IMS-ROI are promising techniques for identifying biomarkers using brain tumour samples.
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Affiliation(s)
- Takuya Hiratsuka
- Department of Drug and Discovery Medicine, Pathology Division, Kyoto University Graduate School of Medicine, Kyoto, 606-8501, Japan
| | - Yoshiki Arakawa
- Department of Neural Surgery, Kyoto University Hospital, Kyoto, 606-8507, Japan
| | - Yuka Yajima
- Department of Microbiology, Muroran Institute of Technology, Muroran, Hokkaido, 050-8585, Japan
| | - Yu Kakimoto
- Department of Forensic Medicine, Graduate School of Medicine, Tokai University School of Medicine, Isehara-Shimokasuya 143, Kanagawa, 259-1193, Japan
| | - Keisuke Shima
- Kyoto Applications Development Center, Analytical & Measuring Instruments Division, Shimadzu Corporation, 1 Nishino-kyo-Kuwabara-cho, Kyoto, 604-8511, Japan
| | - Yuzo Yamazaki
- Kyoto Applications Development Center, Analytical & Measuring Instruments Division, Shimadzu Corporation, 1 Nishino-kyo-Kuwabara-cho, Kyoto, 604-8511, Japan
| | - Masahiro Ikegami
- Kyoto Applications Development Center, Analytical & Measuring Instruments Division, Shimadzu Corporation, 1 Nishino-kyo-Kuwabara-cho, Kyoto, 604-8511, Japan
| | - Takushi Yamamoto
- Kyoto Applications Development Center, Analytical & Measuring Instruments Division, Shimadzu Corporation, 1 Nishino-kyo-Kuwabara-cho, Kyoto, 604-8511, Japan
| | - Hideshi Fujiwake
- Research Center, Shimadzu General Services, Inc., 1 Nishino-kyo-Kuwabara-cho, Kyoto, 604-8511, Japan
| | - Koichi Fujimoto
- Department of Neural Surgery, Kyoto University Hospital, Kyoto, 606-8507, Japan
| | - Norishige Yamada
- Clinical bioresource centre, Kyoto University Hospital, Kyoto, 606-8507, Japan
| | - Tatsuaki Tsuruyama
- Department of Drug and Discovery Medicine, Pathology Division, Kyoto University Graduate School of Medicine, Kyoto, 606-8501, Japan. .,Clinical bioresource centre, Kyoto University Hospital, Kyoto, 606-8507, Japan.
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4
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Affiliation(s)
- Joseph Sherma
- Department of Chemistry, Lafayette College, Easton, PA, USA
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5
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García-Rojas NS, Moreno-Pedraza A, Rosas-Román I, Ramírez-Chávez E, Molina-Torres J, Winkler R. Mass spectrometry imaging of thin-layer chromatography plates using laser desorption/low-temperature plasma ionisation. Analyst 2020; 145:3885-3891. [DOI: 10.1039/d0an00446d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An open development kit for ambient ionisation enables the fast scanning and visualisation of TLC plates with high lateral resolution.
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Affiliation(s)
| | | | | | | | | | - Robert Winkler
- CINVESTAV Unidad Irapuato
- Department of Biochemistry and Biotechnology
- Mexico
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6
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Esparza C, Borisov R, Polovkov NY, Zaikin V. Post-chromatographic fixed-charge derivatization for the analysis of hydroxyl-containing compounds by a combination of thin-layer chromatography and matrix-assisted laser desorption/ionization mass spectrometry. J Chromatogr A 2018; 1560:97-103. [DOI: 10.1016/j.chroma.2018.05.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 05/11/2018] [Accepted: 05/12/2018] [Indexed: 12/19/2022]
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7
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Shi W, Yin Y, Wang Y, Zhang B, Tan P, Jiang T, Mei H, Deng J, Wang H, Guo T, Pang Z, Hu Y. A tissue factor-cascade-targeted strategy to tumor vasculature: a combination of EGFP-EGF1 conjugation nanoparticles with photodynamic therapy. Oncotarget 2018; 8:32212-32227. [PMID: 27793028 PMCID: PMC5458279 DOI: 10.18632/oncotarget.12922] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 10/22/2016] [Indexed: 02/03/2023] Open
Abstract
Tumor requires tumor vasculature to supply oxygen and nutrients so as to support its continued growth, as well as provide a main route for metastatic spread. In this study, a TF-cascade-targeted strategy aiming to disrupt tumor blood vessels was developed by combination of TF-targeted HMME-loaded drug delivery system and PDT. PDT is a promising new modality in the treatment of cancers, which employs the interaction between a tumor-localizing photosensitizer and light of an appropriate wavelength to bring about ROS-induced cell death. In vitro results showed that protein EGFP-EGF1modification could significantly contribute to the uptake of nanoparticles by TF over-expressed BCECs. In vivo multispectral fluorescent imaging, the EGFP-EGF1 conjugated nanoparticles showed significantly higher accumulation in tumor tissues than non-conjugated ones. Tumor tissue slides further presented that EGFP-EGF1 conjugated nanoparticles showed significantly higher accumulation in tumor vasculature than non-conjugated ones. In vitro study demonstrated that PDT increased TF expression of BCECs. In vivo imaging, ex vivo imaging and tumor tissue slides showed that PDT further contribute EGFP-EGF1-NP accumulation in tumor. These promising results indicated that PDT enhanced EGFP-EGF1modified PEG-PLGA nanoparticle accumulation in tumor vaculature. Considering that EGFP-EGF1 conjugation enhanced nanoparticles uptake by TF over-expressed endothelium and PDT increased endothelium TF expression. We conclude that PDT triggered a TF cascade targeted effect. A combination of both EGFP-EGF1 modification and PDT provided a positive feed-back target effect to tumor vessels and might have a great potential for tumor therapy.
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Affiliation(s)
- Wei Shi
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China.,Targeted Biotherapy Key Laboratory of Ministry of Education, Wuhan, Hubei, China
| | - Yanxue Yin
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China.,Targeted Biotherapy Key Laboratory of Ministry of Education, Wuhan, Hubei, China
| | - Yao Wang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China
| | - Bo Zhang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China.,Targeted Biotherapy Key Laboratory of Ministry of Education, Wuhan, Hubei, China
| | - Pei Tan
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China.,Targeted Biotherapy Key Laboratory of Ministry of Education, Wuhan, Hubei, China
| | - Ting Jiang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China.,Targeted Biotherapy Key Laboratory of Ministry of Education, Wuhan, Hubei, China
| | - Heng Mei
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China.,Targeted Biotherapy Key Laboratory of Ministry of Education, Wuhan, Hubei, China
| | - Jun Deng
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China.,Targeted Biotherapy Key Laboratory of Ministry of Education, Wuhan, Hubei, China
| | - Huafang Wang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China.,Targeted Biotherapy Key Laboratory of Ministry of Education, Wuhan, Hubei, China
| | - Tao Guo
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China.,Targeted Biotherapy Key Laboratory of Ministry of Education, Wuhan, Hubei, China
| | - Zhiqing Pang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China
| | - Yu Hu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, China.,Targeted Biotherapy Key Laboratory of Ministry of Education, Wuhan, Hubei, China
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8
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Bandu R, Mok HJ, Kim KP. Phospholipids as cancer biomarkers: Mass spectrometry-based analysis. Mass Spectrom Rev 2018; 37:107-138. [PMID: 27276657 DOI: 10.1002/mas.21510] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 05/19/2016] [Indexed: 05/02/2023]
Abstract
Lipids, particularly phospholipids (PLs), are key components of cellular membrane. PLs play important and diverse roles in cells such as chemical-energy storage, cellular signaling, cell membranes, and cell-cell interactions in tissues. All these cellular processes are pertinent to cells that undergo transformation, cancer progression, and metastasis. Thus, there is a strong possibility that some classes of PLs are expected to present in cancer cells and tissues in cellular physiology. The mass spectrometric soft-ionization techniques, electrospray ionization (ESI), and matrix-assisted laser desorption/ionization (MALDI) are well-established in the proteomics field, have been used for lipidomic analysis in cancer research. This review focused on the applications of mass spectrometry (MS) mainly on ESI-MS and MALDI-MS in the structural characterization, molecular composition and key roles of various PLs present in cancer cells, tissues, blood, and urine, and on their importance for cancer-related problems as well as challenges for development of novel PL-based biomarkers. The profiling of PLs helps to rationalize their functions in biological systems, and will also provide diagnostic information to elucidate mechanisms behind the control of cancer, diabetes, and neurodegenerative diseases. The investigation of cellular PLs with MS methods suggests new insights on various cancer diseases and clinical applications in the drug discovery and development of biomarkers for various PL-related different cancer diseases. PL profiling in tissues, cells and body fluids also reflect the general condition of the whole organism and can indicate the existence of cancer and other diseases. PL profiling with MS opens new prospects to assess alterations of PLs in cancer, screening specific biomarkers and provide a basis for the development of novel therapeutic strategies. © 2016 Wiley Periodicals, Inc. Mass Spec Rev 37:107-138, 2018.
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Affiliation(s)
- Raju Bandu
- Department of Applied Chemistry, College of Applied Science, Kyung Hee University, Yong-in City, 446-701, Korea
| | - Hyuck Jun Mok
- Department of Applied Chemistry, College of Applied Science, Kyung Hee University, Yong-in City, 446-701, Korea
| | - Kwang Pyo Kim
- Department of Applied Chemistry, College of Applied Science, Kyung Hee University, Yong-in City, 446-701, Korea
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9
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Ibrahim H, Jurcic K, Wang JSH, Whitehead SN, Yeung KKC. 1,6-Diphenyl-1,3,5-hexatriene (DPH) as a Novel Matrix for MALDI MS Imaging of Fatty Acids, Phospholipids, and Sulfatides in Brain Tissues. Anal Chem 2017; 89:12828-12836. [PMID: 29095596 DOI: 10.1021/acs.analchem.7b03284] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
1,6-Diphenyl-1,3,5-hexatriene (DPH) is a commonly used fluorescence probe for studying cell membrane-lipids due to its affinity toward the acyl chains in the phospholipid bilayers. In this work, we investigated its use in matrix-assisted laser desorption/ionization (MALDI) as a new matrix for mass spectrometry imaging (MSI) of mouse and rat brain tissue. DPH exhibits very minimal matrix-induced background signals for the analysis of small molecules (below m/z of 1000). In the negative ion mode, DPH permits the highly sensitive detection of small fatty acids (m/z 200-350) as well as a variety of large lipids up to m/z of 1000, including lyso-phospholipid, phosphatidic acid (PA), phosphoethanolamine (PE), phosphatidylserine (PS), phosphatidylglycerol (PG), phosphatidylinositol (PI), and sulfatides (ST). The analytes were mostly detected as the deprotonated ion [M - H]-. Our results also demonstrate that sublimated DPH is stable for at least 24 h under the vacuum of our MALDI mass spectrometer. The ability to apply DPH via sublimation coupled with its low volatility allows us to perform tissue imaging of the above analytes at high spatial resolution. The degree of lipid fragmentation was determined experimentally at varying laser intensities. The results illustrated that the use of relatively low laser energy is important to minimize the artificially generated fatty acid signals. On the other hand, the lipid fragmentation obtained at higher laser energies provided tandem MS information useful for lipid structure elucidation.
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Affiliation(s)
- Hanadi Ibrahim
- Department of Chemistry, ‡Department of Biochemistry, and §Department of Anatomy and Cell Biology, The University of Western Ontario , London, Ontario, Canada
| | - Kristina Jurcic
- Department of Chemistry, ‡Department of Biochemistry, and §Department of Anatomy and Cell Biology, The University of Western Ontario , London, Ontario, Canada
| | - Jasmine S-H Wang
- Department of Chemistry, ‡Department of Biochemistry, and §Department of Anatomy and Cell Biology, The University of Western Ontario , London, Ontario, Canada
| | - Shawn N Whitehead
- Department of Chemistry, ‡Department of Biochemistry, and §Department of Anatomy and Cell Biology, The University of Western Ontario , London, Ontario, Canada
| | - Ken K-C Yeung
- Department of Chemistry, ‡Department of Biochemistry, and §Department of Anatomy and Cell Biology, The University of Western Ontario , London, Ontario, Canada
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10
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Ferey J, Da Silva D, Lafite P, Daniellou R, Maunit B. TLC-UV hyphenated with MALDI-TOFMS for the screening of invertase substrates in plant extracts. Talanta 2017; 170:419-424. [DOI: 10.1016/j.talanta.2017.04.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 04/13/2017] [Accepted: 04/16/2017] [Indexed: 10/19/2022]
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11
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Torretta E, Fania C, Vasso M, Gelfi C. HPTLC-MALDI MS for (glyco)sphingolipid multiplexing in tissues and blood: A promising strategy for biomarker discovery and clinical applications. Electrophoresis 2016; 37:2036-49. [DOI: 10.1002/elps.201600094] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 04/29/2016] [Accepted: 05/02/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Enrica Torretta
- Department of Biomedical Sciences for Health; University of Milan; Milan Italy
- IRCCS Policlinico San Donato; Piazza Edmondo Malan; San Donato Milanese Milan Italy
| | - Chiara Fania
- IRCCS Policlinico San Donato; Piazza Edmondo Malan; San Donato Milanese Milan Italy
| | - Michele Vasso
- Institute of Molecular Bioimaging and Physiology (IBFM); CNR Milan Italy
| | - Cecilia Gelfi
- Department of Biomedical Sciences for Health; University of Milan; Milan Italy
- IRCCS Policlinico San Donato; Piazza Edmondo Malan; San Donato Milanese Milan Italy
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12
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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. J Am Soc Mass Spectrom 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] [What about the content of this article? (0)] [Affiliation(s)] [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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13
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Fernández R, Garate J, Lage S, Terés S, Higuera M, Bestard-Escalas J, Martin ML, López DH, Guardiola-Serrano F, Escribá PV, Barceló-Coblijn G, Fernández JA. Optimized Protocol To Analyze Changes in the Lipidome of Xenografts after Treatment with 2-Hydroxyoleic Acid. Anal Chem 2016; 88:1022-9. [PMID: 26607740 PMCID: PMC5017204 DOI: 10.1021/acs.analchem.5b03978] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Xenografts are a popular model for the study of the action of new antitumor drugs. However, xenografts are highly heterogeneous structures, and therefore it is sometimes difficult to evaluate the effects of the compounds on tumor metabolism. In this context, imaging mass spectrometry (IMS) may yield the required information, due to its inherent characteristics of sensitivity and spatial resolution. To the best of our knowledge, there is still no clear analysis protocol to properly evaluate the changes between samples due to the treatment. Here we present a protocol for the evaluation of the effect of 2-hydroxyoleic acid (2-OHOA), an antitumor compound, on xenografts lipidome based on IMS. Direct treated/control comparison did not show conclusive results. As we will demonstrate, a more sophisticated protocol was required to evaluate these changes including the following: (1) identification of different areas in the xenograft, (2) classification of these areas (necrotic/viable) to compare similar types of tissues, (3) suppression of the effect of the variation of adduct formation between samples, and (4) normalization of the variables using the standard deviation to eliminate the excessive impact of the stronger peaks in the statistical analysis. In this way, the 36 lipid species that experienced the largest changes between treated and control were identified. Furthermore, incorporation of 2-hydroxyoleic acid to a sphinganine base was also confirmed by MS/MS. Comparison of the changes observed here with previous results obtained with different techniques demonstrates the validity of the protocol.
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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
| | - Jone Garate
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain
| | - Sergio Lage
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, 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, E-07122 Palma, Balearic Islands, Spain
| | - Joan Bestard-Escalas
- Research Unit, Hospital Universitari Son Espases, Institut d’Investigació Sanitária de Palma (IdISPa), Carretera Valldemossa 79, E-07010 Palma, Balearic Islands, Spain
| | - M. Laura Martin
- Laboratory of Signal Transduction, Memorial Sloan-Kettering Cancer Center, 415 East 68th Street, New York, New York 10065, United States
| | - Daniel H. López
- Research Unit, Hospital Universitari Son Espases, Institut d’Investigació Sanitária de Palma (IdISPa), Carretera 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, E-07122 Palma, Balearic Islands, Spain
| | - Pablo V. Escribá
- Laboratory of Molecular and Cell Biomedicine, Department of Biology, University of the Balearic Islands, E-07122 Palma, Balearic Islands, Spain
| | - Gwendolyn Barceló-Coblijn
- Research Unit, Hospital Universitari Son Espases, Institut d’Investigació Sanitária de Palma (IdISPa), Carretera 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, 48940 Leioa, Spain
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