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Yan T, Prentice BM. Structural characterization of sphingomyelins from tissue using electron-induced dissociation. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2024; 38:e9844. [PMID: 38932679 DOI: 10.1002/rcm.9844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 04/17/2024] [Accepted: 05/17/2024] [Indexed: 06/28/2024]
Abstract
RATIONALE Sphingomyelins (SMs) and resulting metabolic products serve important functional and cell signaling roles and can act as potential biomarkers and therapeutic targets in many pathological disorders. SMs each contain a sphingoid base, an amide-linked fatty acyl chain, and a phosphocholine headgroup. Despite these simple building blocks, variations and modifications of both the sphingoid base and the fatty acyl chain result in a diverse array of structurally complicated SM compounds. Conventional tandem mass spectrometry (MS/MS) using the collision-induced dissociation (CID) method only provides limited structural information, necessitating other tools to unravel the structural complexity of these lipids. METHODS We utilize electron-induced dissociation (EID) and sequential CID/EID approaches to elucidate detailed structural features of SMs. Integrating the CID/EID method into an imaging MS workflow enables accurate identification of SMs directly from kidney tissue. RESULTS The application of EID enables identification of SMs at the molecular species level, identifying the sphingosine base and the amide-linked fatty acyl chains. Furthermore, removal of the phosphocholine headgroup via CID followed by sequential EID in an MS3 analysis (CID/EID) enhances the structural information obtained. CID/EID provides diagnostic fragmentation patterns revealing the hydroxylation site and double bond position in both the sphingosine base and amide-linked fatty acyl chains. CONCLUSIONS Detailed structural information of SMs from synthetic standards and biological tissue samples is obtained using an alternative electron-based dissociation method. Accurate characterization of SMs promises to better inform studies of tissue biochemistry, lipid metabolism, and molecular pathology.
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Affiliation(s)
- Tingting Yan
- Department of Chemistry, University of Florida, Gainesville, Florida, USA
| | - Boone M Prentice
- Department of Chemistry, University of Florida, Gainesville, Florida, USA
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2
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Kim HY, Lee JD, Kim H, Kim Y, Park JJ, Oh SB, Goo H, Cho KJ, Kim KB. Mass spectrometry (MS)-based metabolomics of plasma and urine in dry eye disease (DED)-induced rat model. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2024:1-14. [PMID: 39185961 DOI: 10.1080/15287394.2024.2393770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
Dry eye disease (DED) is an ophthalmic disease associated with poor quality and quantity of tears, and the number of patients is steadily increasing. The aim of this study was to determine plasma and urine metabolites obtained from DED scopolamine animal model where dry eye conditions (DRY) are induced. It was also of interest to examine whether DED (scopolamine) rat model was exacerbated by treatment with benzalkonium chloride (BAC). Subsequently, plasma and urine metabolites were analyzed using liquid chromatography (LC) and gas chromatography (GC)-mass spectrometry (MS), respectively. Data demonstrated that DED indicators such as tear volume, tear breakup time (TBUT), and corneal damage in the DED groups (DRY and BAC group) differed from those of control (CON). Similar results were noted in inflammatory factors such as interleukin (IL-1β), IL-6, and tumor necrosis factor (TNF)-α. In the partial least squares-discriminant analysis (PLS-DA) score plots, the three groups were distinctly separated from each other. In addition, the related metabolites were also associated with these distinct separations as evidenced by 9 and 14 in plasma and urine, respectively. Almost all of the selected metabolites were decreased in the DRY group compared to CON, and the BAC group was lower than the DRY. In plasma and urine, lysophosphatidylcholine/lysophosphatidylethanolamine, organic acids, amino acids, and sugars varied between three groups, and these metabolites were related to inflammation and oxidative stress. Data suggest that treatment with scopolamine with/without BAC-induced DED and affected the level of systemic metabolites involved in inflammation and oxidative stress.
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Affiliation(s)
- Hyang Yeon Kim
- College of Pharmacy, Dankook University, Cheonan, Chungnam, Republic of Korea
- Center for Human Risk Assessment, Dankook University, Cheonan, Chungnam, Republic of Korea
| | - Jung Dae Lee
- College of Pharmacy, Dankook University, Cheonan, Chungnam, Republic of Korea
- Center for Human Risk Assessment, Dankook University, Cheonan, Chungnam, Republic of Korea
| | - HongYoon Kim
- College of Pharmacy, Dankook University, Cheonan, Chungnam, Republic of Korea
- Center for Human Risk Assessment, Dankook University, Cheonan, Chungnam, Republic of Korea
| | - YuJin Kim
- College of Pharmacy, Dankook University, Cheonan, Chungnam, Republic of Korea
- Center for Human Risk Assessment, Dankook University, Cheonan, Chungnam, Republic of Korea
| | - Jin Ju Park
- College of Pharmacy, Dankook University, Cheonan, Chungnam, Republic of Korea
- Center for Human Risk Assessment, Dankook University, Cheonan, Chungnam, Republic of Korea
| | - Soo Bean Oh
- Department of Ophthalmology, College of Medicine, Dankook University, Cheonan, Chungnam, Republic of Korea
| | - Hyeyoon Goo
- Department of Ophthalmology, College of Medicine, Dankook University, Cheonan, Chungnam, Republic of Korea
| | - Kyong Jin Cho
- Department of Ophthalmology, College of Medicine, Dankook University, Cheonan, Chungnam, Republic of Korea
| | - Kyu-Bong Kim
- College of Pharmacy, Dankook University, Cheonan, Chungnam, Republic of Korea
- Center for Human Risk Assessment, Dankook University, Cheonan, Chungnam, Republic of Korea
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3
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Antunes ALM, Mesquita BMADC, Fonseca FSAD, Carvalho LMD, Brandi IV, Carvalho GGPD, Coimbra JSDR. Extraction and application of lipids from edible insects. Crit Rev Food Sci Nutr 2024:1-9. [PMID: 39175221 DOI: 10.1080/10408398.2024.2394798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
Research on new food sources is a worldwide challenge due to the constant increase in the global population. In this scenario, insects and bug based products have been investigated as feasible food alternatives. They are nutritionally healthy and environmentally sustainable. Eating insects (entomophagy) or utilizing their macronutrients in food formulations can efficiently solve the demand for nutritious food. The benefits of insect-based foods are reported in the literature, mainly because they are viable sources of fat (∼38%) and proteins (∼68%). Fats and oils are recognized as essential nutrients in human nutrition, as they provide a concentrated source of energy and act as structural components of cell membranes and signaling pathways. The high levels of fats/oils of edible insects open the perspective in the food industry to be used as ingredients in the enrichment of several products, such as cookies, biscuits, butter, and margarine, among others, thus contributing to consumer acceptance. Insect fat/oil can be obtained using extraction techniques, such as solvent and supercritical CO2 methods. The method depends on the insect species, fat/oil yield, and process costs. Thus, this review aims to provide current information on the consumption, application, and extraction of edible insect oils.
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Affiliation(s)
- Ada Lorrana Medeiros Antunes
- Federal University of Minas Gerais, Institute of Agricultural Sciences, Avenida Universitária, 1.000 - Bairro Universitário, Montes Claros, Minas Gerais, Brazil
| | | | - Francine Souza Alves da Fonseca
- Federal University of Minas Gerais, Institute of Agricultural Sciences, Avenida Universitária, 1.000 - Bairro Universitário, Montes Claros, Minas Gerais, Brazil
| | - Lorendane Millena de Carvalho
- Federal University of Recôncavo da Bahia, Center of Agricultural, Environmental and Biological Sciences, Cruz das Almas, Bahia, Brazil
| | - Igor Viana Brandi
- Federal University of Minas Gerais, Institute of Agricultural Sciences, Avenida Universitária, 1.000 - Bairro Universitário, Montes Claros, Minas Gerais, Brazil
| | | | - Jane Sélia Dos Reis Coimbra
- Federal University of Minas Gerais, Institute of Agricultural Sciences, Avenida Universitária, 1.000 - Bairro Universitário, Montes Claros, Minas Gerais, Brazil
- Department of Food Technology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
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Harris RA, May JC, Harvey SR, Wysocki VH, McLean JA. Evaluation of Surface-Induced Dissociation Ion Mobility-Mass Spectrometry for Lipid Structural Characterization. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2024; 35:214-223. [PMID: 38215279 DOI: 10.1021/jasms.3c00319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2024]
Abstract
The complexity of the lipidome has necessitated the development of novel analytical approaches for the identification and structural analysis of morphologically diverse classes of lipids. At this time, a variety of dissociation techniques have been utilized to probe lipid decomposition pathways in search of structurally diagnostic fragment ions. Here, we investigate the application of surface-induced dissociation (SID), a fragmentation technique that imparts energy to the target molecule via collision with a coated surface, for the fragmentation of seven lipids across four major lipid subclasses. We have developed a tuning methodology for guiding the efficient operation of a previously developed custom SID device for molecules as small as ca. 300 Da with ion mobility analysis of the fragmentation products. SID fragmentation of the various lipids analyzed was found to generate fragment ions similar to those observed in CID spectra, but fragment ion lab frame onset energies were lower in SID due to the higher energy deposition via a more massive target. For the largest lipid evaluated (cardiolipin 18:1), SID produced chain fragment ions, which yielded analytically useful information regarding the composition of the acyl tails. Ion mobility provided an orthogonal dimension of separation and aided in assigning product ions to their precursors. Overall, the combination of SID and IM-MS is another potential methodology in the analytical toolkit for lipid structural analysis.
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Affiliation(s)
- Rachel A Harris
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Jody C May
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Sophie R Harvey
- Department of Chemistry and Biochemistry and Resource for Native Mass Spectrometry Guided Structural Biology, The Ohio State University, Columbus, Ohio 43210, United States
| | - Vicki H Wysocki
- Department of Chemistry and Biochemistry and Resource for Native Mass Spectrometry Guided Structural Biology, The Ohio State University, Columbus, Ohio 43210, United States
| | - John A McLean
- Department of Chemistry, Center for Innovative Technology, Vanderbilt Institute of Chemical Biology, Vanderbilt Institute for Integrative Biosystems Research and Education, Vanderbilt University, Nashville, Tennessee 37235, United States
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5
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Bonney JR, Kang WY, Specker JT, Liang Z, Scoggins TR, Prentice BM. Relative Quantification of Lipid Isomers in Imaging Mass Spectrometry Using Gas-Phase Charge Inversion Ion/Ion Reactions and Infrared Multiphoton Dissociation. Anal Chem 2023; 95:17766-17775. [PMID: 37991720 PMCID: PMC11161029 DOI: 10.1021/acs.analchem.3c03804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Accurate structural identification of lipids in imaging mass spectrometry is critical to properly contextualizing spatial distributions with tissue biochemistry. Gas-phase charge inversion ion/ion reactions alter the ion type prior to dissociation to allow for more structurally informative fragmentation and improve lipid identification at the isomeric level. In this work, infrared multiphoton dissociation (IRMPD) was interfaced with a commercial hybrid Qh-FT-ICR mass spectrometer to enable the rapid fragmentation of gas-phase charge inversion ion/ion reaction products at every pixel in imaging mass spectrometry experiments. An ion/ion reaction between phosphatidylcholine (PC) monocations generated from rat brain tissue via matrix-assisted laser desorption/ionization (MALDI) and 1,4-phenylenediproprionic acid reagent dianions generated via electrospray ionization (ESI) followed by IRMPD of the resulting product ion complex produces selective fatty acyl chain cleavages indicative of fatty acyl carbon compositions in the lipid. Ion/ion reaction images using this workflow allow for mapping of the relative spatial distribution of multiple PC isomers under a single sum composition lipid identification. Lipid isomers display significantly different relative spatial distributions within rat brain tissue, highlighting the importance of resolving isomers in imaging mass spectrometry experiments.
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Affiliation(s)
- Julia R. Bonney
- Department of Chemistry, University of Florida, Gainesville, FL 32611
| | - Woo-Young Kang
- Department of Chemistry, University of Florida, Gainesville, FL 32611
| | | | - Zhongling Liang
- Department of Chemistry, University of Florida, Gainesville, FL 32611
| | - Troy R. Scoggins
- Department of Chemistry, University of Florida, Gainesville, FL 32611
| | - Boone M. Prentice
- Department of Chemistry, University of Florida, Gainesville, FL 32611
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Waly DA, Zeid AHA, Attia HN, Ahmed KA, El-Kashoury ESA, El Halawany AM, Mohammed RS. Comprehensive phytochemical characterization of Persea americana Mill. fruit via UPLC/HR-ESI-MS/MS and anti-arthritic evaluation using adjuvant-induced arthritis model. Inflammopharmacology 2023; 31:3243-3262. [PMID: 37936023 PMCID: PMC10692038 DOI: 10.1007/s10787-023-01365-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 10/06/2023] [Indexed: 11/09/2023]
Abstract
Persea americana Mill. (avocado fruit) has many health benefits when added to our diet due to various pharmacological activities, such as preventing bone loss and inflammation, modulating immune response and acting as an antioxidant. In the current study, the total ethanol extract (TEE) of the fruit was investigated for in vitro antioxidant and anti-inflammatory activity via DPPH and cyclooxygenase enzyme inhibition. Biological evaluation of the antiarthritic effect of the fruit extract was further investigated in vivo using Complete Freund's Adjuvant (CFA) arthritis model, where the average percentages of body weight change, inhibition of paw edema, basal paw diameter/weight and spleen index were estimated for all animal groups. Inflammatory mediators such as serum IL-6 and TNF-α were also determined, in addition to histopathological examination of the dissected limbs isolated from all experimental animals. Eighty-one metabolites belonging to different chemical classes were detected in the TEE of P. americana fruit via UPLC/HR-ESI-MS/MS. Two classes of lyso-glycerophospholipids; lyso-glycerophosphoethanolamines and lysoglycerophosphocholines were detected for the first time in avocado fruit in the positive mode. The TEE of fruit exhibited significant antioxidant and anti-inflammatory activity in vitro. In vivo anti-arthritic activity of the fruit TEE improved paw parameters, inflammatory mediators and spleen index. Histopathological findings showed marked improvements in the arthritic condition of the excised limbs. Therefore, avocado fruit could be proposed to be a powerful antioxidant and antiarthritic natural product.
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Affiliation(s)
- Dina Atef Waly
- Department of Pharmacognosy, National Research Centre (ID: 60014618), 33-Elbohouth St (Former El-Tahrir St.), Dokki, P.O. 12622, Giza, Egypt.
| | - Aisha Hussein Abou Zeid
- Department of Pharmacognosy, National Research Centre (ID: 60014618), 33-Elbohouth St (Former El-Tahrir St.), Dokki, P.O. 12622, Giza, Egypt
| | - Hanan Naeim Attia
- Medicinal and Pharmaceutical Chemistry Department (Pharmacology Group), National Research Centre (ID: 60014618), 33-Elbohouth St (Former El-Tahrir St.), Dokki, P.O. 12622, Giza, Egypt
| | - Kawkab A Ahmed
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, P.O. 12211, Giza, Egypt
| | | | - Ali Mahmoud El Halawany
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr-El Ainy Street, Cairo, 11562, Egypt
| | - Reda Sayed Mohammed
- Department of Pharmacognosy, National Research Centre (ID: 60014618), 33-Elbohouth St (Former El-Tahrir St.), Dokki, P.O. 12622, Giza, Egypt.
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7
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Rempfert KR, Kraus EA, Nothaft DB, Dildar N, Spear JR, Sepúlveda J, Templeton AS. Intact polar lipidome and membrane adaptations of microbial communities inhabiting serpentinite-hosted fluids. Front Microbiol 2023; 14:1198786. [PMID: 38029177 PMCID: PMC10667739 DOI: 10.3389/fmicb.2023.1198786] [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: 04/02/2023] [Accepted: 09/25/2023] [Indexed: 12/01/2023] Open
Abstract
The generation of hydrogen and reduced carbon compounds during serpentinization provides sustained energy for microorganisms on Earth, and possibly on other extraterrestrial bodies (e.g., Mars, icy satellites). However, the geochemical conditions that arise from water-rock reaction also challenge the known limits of microbial physiology, such as hyperalkaline pH, limited electron acceptors and inorganic carbon. Because cell membranes act as a primary barrier between a cell and its environment, lipids are a vital component in microbial acclimation to challenging physicochemical conditions. To probe the diversity of cell membrane lipids produced in serpentinizing settings and identify membrane adaptations to this environment, we conducted the first comprehensive intact polar lipid (IPL) biomarker survey of microbial communities inhabiting the subsurface at a terrestrial site of serpentinization. We used an expansive, custom environmental lipid database that expands the application of targeted and untargeted lipodomics in the study of microbial and biogeochemical processes. IPLs extracted from serpentinite-hosted fluid communities were comprised of >90% isoprenoidal and non-isoprenoidal diether glycolipids likely produced by archaeal methanogens and sulfate-reducing bacteria. Phospholipids only constituted ~1% of the intact polar lipidome. In addition to abundant diether glycolipids, betaine and trimethylated-ornithine aminolipids and glycosphingolipids were also detected, indicating pervasive membrane modifications in response to phosphate limitation. The carbon oxidation state of IPL backbones was positively correlated with the reduction potential of fluids, which may signify an energy conservation strategy for lipid synthesis. Together, these data suggest microorganisms inhabiting serpentinites possess a unique combination of membrane adaptations that allow for their survival in polyextreme environments. The persistence of IPLs in fluids beyond the presence of their source organisms, as indicated by 16S rRNA genes and transcripts, is promising for the detection of extinct life in serpentinizing settings through lipid biomarker signatures. These data contribute new insights into the complexity of lipid structures generated in actively serpentinizing environments and provide valuable context to aid in the reconstruction of past microbial activity from fossil lipid records of terrestrial serpentinites and the search for biosignatures elsewhere in our solar system.
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Affiliation(s)
- Kaitlin R. Rempfert
- Department of Geological Sciences, University of Colorado, Boulder, CO, United States
| | - Emily A. Kraus
- Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO, United States
| | - Daniel B. Nothaft
- Department of Geological Sciences, University of Colorado, Boulder, CO, United States
| | - Nadia Dildar
- Department of Geological Sciences, University of Colorado, Boulder, CO, United States
| | - John R. Spear
- Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO, United States
- Department of Quantitative Biosciences and Engineering, Colorado School of Mines, Golden, CO, United States
| | - Julio Sepúlveda
- Department of Geological Sciences, University of Colorado, Boulder, CO, United States
| | - Alexis S. Templeton
- Department of Geological Sciences, University of Colorado, Boulder, CO, United States
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8
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Yan T, Liang Z, Prentice BM. Imaging and Structural Characterization of Phosphatidylcholine Isomers from Rat Brain Tissue Using Sequential Collision-Induced Dissociation/Electron-Induced Dissociation. Anal Chem 2023; 95:15707-15715. [PMID: 37818979 PMCID: PMC10639000 DOI: 10.1021/acs.analchem.3c03077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
The chemical complexity of biological tissues creates challenges in the analysis of lipids via imaging mass spectrometry. The presence of isobaric and isomeric compounds introduces chemical noise that makes it difficult to unambiguously identify and accurately map the spatial distributions of these compounds. Electron-induced dissociation (EID) has previously been shown to profile phosphatidylcholine (PCs) sn-isomers directly from rat brain tissue in matrix-assisted laser desorption/ionization (MALDI) imaging mass spectrometry. However, the acquisition of true pixel-by-pixel images, as opposed to regional profiling measurements, using EID is difficult due to low fragmentation efficiency and precursor ion signal dilution into multiple fragment ion channels, resulting in low sensitivity. In this work, we have developed a sequential collision-induced dissociation (CID)/EID method to visualize the distribution of sn-isomers in MALDI imaging mass spectrometry experiments. Briefly, CID is performed on sodium-adducted PCs, which results in facile loss of the phosphocholine headgroup. This ion is then subjected to an EID analysis. Since the lipid headgroup is removed prior to EID, a major fragmentation pathway common to EID ion activation is eliminated, resulting in a more sensitive analysis. This sequential CID/EID workflow generates sn-specific fragment ions allowing for the assignment of the sn-positions. Carbon-carbon double-bond (C═C) positions are also localized along the fatty acyl tails by the presence of a 2 Da shift pattern in the fragment ions arising from carbon-carbon bond cleavages. Moreover, the integration of the CID/EID method into MALDI imaging mass spectrometry enables the mapping of the absolute and relative distribution of sn-isomers at every pixel. The localized relative abundances of sn-isomers vary throughout brain substructures and likely reflect different biological functions and metabolism.
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Affiliation(s)
- Tingting Yan
- Department of Chemistry, University of Florida, Gainesville, FL 32611
| | - Zhongling Liang
- Department of Chemistry, University of Florida, Gainesville, FL 32611
| | - Boone M. Prentice
- Department of Chemistry, University of Florida, Gainesville, FL 32611
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9
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Gill CP, Phan C, Platt V, Worrell D, Andl T, Roy H. The MprF homolog LysX synthesizes lysyl-diacylglycerol contributing to antibiotic resistance and virulence. Microbiol Spectr 2023; 11:e0142923. [PMID: 37768052 PMCID: PMC10580965 DOI: 10.1128/spectrum.01429-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/10/2023] [Indexed: 09/29/2023] Open
Abstract
Lysyl-diacylglycerol (Lys-DAG) was identified three decades ago in Mycobacterium phlei, but the biosynthetic pathway and function of this aminoacylated lipid have since remained uncharacterized. Combining genetic methods, mass spectrometry, and biochemical approaches, we show that the multiple peptide resistance factor (MprF) homolog LysX from Corynebacterium pseudotuberculosis and two mycobacterial species is responsible for Lys-DAG synthesis. LysX is conserved in most Actinobacteria and was previously implicated in the synthesis of another modified lipid, lysyl-phosphatidylglycerol (Lys-PG), in Mycobacterium tuberculosis. Although we detected low levels of Lys-PG in the membrane of C. pseudotuberculosis, our data suggest that Lys-PG is not directly synthesized by LysX and may require an additional downstream pathway, which is as yet undefined. Our results show that LysX in C. pseudotuberculosis is a major factor of resistance against a variety of positively charged antibacterial agents, including cationic antimicrobial peptides (e.g., human peptide LL-37 and polymyxin B) and aminoglycosides (e.g., gentamycin and apramycin). Deletion of lysX caused an increase in cellular membrane permeability without dissipation of the membrane potential, suggesting that loss of the protein does not result in mechanical damage to the cell membrane. Furthermore, lysX-deficient cells exhibited an attenuated virulence phenotype in a Galleria mellonella infection model, supporting a role for LysX during infection. Altogether, Lys-DAG represents a novel molecular determinant for antimicrobial resistance and virulence that may be widespread in Actinobacteria and points to a richer landscape than previously realized of lipid components contributing to overall membrane physiology in this important bacterial phylum. IMPORTANCE In the past two decades, tRNA-dependent modification of membrane phosphatidylglycerol has been implicated in altering the biochemical properties of the cell surface, thereby enhancing the antimicrobial resistance and virulence of various bacterial pathogens. Here, we show that in several Actinobacteria, the multifunctional protein LysX attaches lysine to diacylglycerol instead of phosphatidylglycerol. We found that lysyl-diacylglycerol (Lys-DAG) confers high levels of resistance against various cationic antimicrobial peptides and aminoglycosides and also enhances virulence. Our data show that Lys-DAG is a lipid commonly found in important actinobacterial pathogens, including Mycobacterium and Corynebacterium species.
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Affiliation(s)
- Cameron P. Gill
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Christopher Phan
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Vivien Platt
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Danielle Worrell
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Thomas Andl
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Hervé Roy
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
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10
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Specker JT, Prentice BM. Separation of Isobaric Lipids in Imaging Mass Spectrometry Using Gas-Phase Charge Inversion Ion/Ion Reactions. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2023; 34:1868-1878. [PMID: 37276072 PMCID: PMC10641901 DOI: 10.1021/jasms.3c00081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The diverse array of chemical compounds present in tissue samples results in many isobaric (i.e., same nominal mass) compounds in imaging mass spectrometry experiments. Adequate separation and differentiation of these compounds is necessary to ensure accurate analyte identification and avoid composite images comprising multiple compounds. High-resolution accurate mass (HRAM) measurements are able to resolve these compounds in some instances, but HRAM measurements are not always feasible depending on the instrument platform and the desired experimental time scale. Alternatively, tandem mass spectrometry (MS/MS) can be used to perform gas-phase transformations that improve molecular specificity. While conventional MS/MS methods employ collision induced dissociation (CID) to fragment compounds of interest and then analyze the product masses, gas-phase ion/ion reactions can be used to instead selectively react with desired classes of analytes. Herein, we have used gas-phase charge inversion ion/ion reactions to selectively resolve phosphatidylcholines (PCs) in isobaric lipid mixtures. A 1,4-phenylenedipropionic acid (PDPA) reagent dianion readily reacts with [M + H]+, [M + Na]+, and [M + K]+ ion types to produce demethylated product anions for each PC, [PC - CH3]-. These product anions are no longer isobaric and now differ in mass by 22 Da (protonated versus sodiated) and 16 Da (sodiated versus potassiated), respectively. This reaction has been used to differentiate isobaric lipids in the imaging mass spectrometry analysis of rat brain tissue.
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Affiliation(s)
| | - Boone M. Prentice
- Department of Chemistry, University of Florida, Gainesville, FL 32611
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11
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Fan X, Young RSE, Sun AR, Hamilton BR, Nedunchezhiyan U, Crawford R, Blanksby SJ, Prasadam I. Functional mass spectrometry imaging maps phospholipase-A2 enzyme activity during osteoarthritis progression. Theranostics 2023; 13:4636-4649. [PMID: 37649605 PMCID: PMC10465221 DOI: 10.7150/thno.86623] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/09/2023] [Indexed: 09/01/2023] Open
Abstract
Background: Enzymes are central components of many physiological processes, and changes in enzyme activity are linked to numerous disease states, including osteoarthritis (OA). Assessing changes in enzyme function can be challenging because of difficulties in separating affected tissue areas that result in the homogenisation of healthy and diseased cells. Direct correlation between spatially-resolved enzyme distribution(s) and diseased cells/tissues can thus lead to advances in our understanding of OA pathophysiology. Herein, we present a method that uses mass spectrometry imaging (MSI) to visualise the distribution of lipase enzymes and their downstream lipid products in fresh bone and cartilage tissue sections. Immunohistostaining of adjacent tissue sections was then used to identify OA cells/tissues, which were then statistically correlated with molecular-level images. Methods: MSI was used to image lipase enzymes, their substrates, and their metabolic products to validate enzymatic activity and correlate to OA regions determined by immunohistochemistry (IHC). Based on the modified Mankin score, six non-OA and OA patient-matched osteochondral samples were analysed by matrix-assisted laser desorption/ionisation mass spectrometry imaging (MALDI-MSI). Due to the involvement of phospholipase A2 (PLA2) in inflammatory pathways, explant tissues were treated with IL-1β to mimic inflammation observed in OA. Bovine explant tissues were then subject to MSI methods to observe the spatial distribution of PLA2. Results: Compared with non-OA samples, OA samples showed an elevated level of multiple arachidonic acid (AA)-containing phospholipids (P < 0.001), in which the elevation in the surface and deep layer cartilage of OA tissues is correlated to elevated PLA2 activity (P < 0.001). Bovine explant tissues treated with IL-1β to mimic OA pathophysiology validated these results and displayed elevated PLA2 levels in OA mimic samples relative to the controls (P < 0.001). It was established that the PLA2G2A isoform specifically was responsible for PLA2 enzyme activity changes in OA tissues (P < 0.001). Conclusion: Our results present a reliable method for imaging enzyme dynamics in OA cartilage, which sets up the foundation for future spatial enzyme dynamics in the OA field. We demonstrated that OA patients exhibit increased expression of PLA2G2A at the superficial and deep cartilage zone that degrades cartilage differently at the spatial level. A tissue-specific PLA2G2A precision inhibition may be the potential target for OA.
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Affiliation(s)
- Xiwei Fan
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia
- School of Mechanical, Medical & Process Engineering, Queensland University of Technology, Brisbane, Australia
| | - Reuben S. E. Young
- Central Analytical Research Facility and School of Chemistry and Physics, Queensland University of Technology, Brisbane, Australia
- Molecular Horizons and School of Chemistry and Molecular Biosciences, University of Wollongong, Wollongong, Australia
| | - Antonia Rujia Sun
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia
- School of Mechanical, Medical & Process Engineering, Queensland University of Technology, Brisbane, Australia
| | - Brett R. Hamilton
- Centre for Microscopy and Microanalysis, University of Queensland, Brisbane, Australia
| | - Udhaya Nedunchezhiyan
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia
- School of Mechanical, Medical & Process Engineering, Queensland University of Technology, Brisbane, Australia
| | - Ross Crawford
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia
- The Prince Charles Hospital, Orthopedic department, Brisbane, Australia
| | - Stephen J. Blanksby
- Central Analytical Research Facility and School of Chemistry and Physics, Queensland University of Technology, Brisbane, Australia
| | - Indira Prasadam
- Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia
- School of Mechanical, Medical & Process Engineering, Queensland University of Technology, Brisbane, Australia
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12
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Woodall B, Fozo EM, Campagna SR. Dual stable isotopes enhance lipidomic studies in bacterial model organism Enterococcus faecalis. Anal Bioanal Chem 2023; 415:3593-3605. [PMID: 37204445 DOI: 10.1007/s00216-023-04750-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/11/2023] [Accepted: 05/05/2023] [Indexed: 05/20/2023]
Abstract
Dual stable isotope probes of deuterium oxide and 13C fatty acid were demonstrated to probe the lipid biosynthesis cycle of a Gram-positive bacterium Enterococcus faecalis. As external nutrients and carbon sources often interact with metabolic processes, the use of dual-labeled isotope pools allowed for the simultaneous investigation of both exogenous nutrient incorporation or modification and de novo biosynthesis. Deuterium was utilized to trace de novo fatty acid biosynthesis through solvent-mediated proton transfer during elongation of the carbon chain while 13C-fatty acids were utilized to trace exogenous nutrient metabolism and modification through lipid synthesis. Ultra-high-performance liquid chromatography high-resolution mass spectrometry identified 30 lipid species which incorporated deuterium and/or 13C fatty acid into the membrane. Additionally, MS2 fragments of isolated lipids identified acyl tail position confirming enzymatic activity of PlsY in the incorporation of the 13C fatty acid into membrane lipids.
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Affiliation(s)
- Brittni Woodall
- Department of Chemistry, University of Tennessee, Knoxville, TN, USA
| | - Elizabeth M Fozo
- Department of Microbiology, University of Tennessee, Knoxville, TN, USA
| | - Shawn R Campagna
- Department of Chemistry, University of Tennessee, Knoxville, TN, USA.
- Biological and Small Molecule Mass Spectrometry Core, University of Tennessee, Knoxville, TN, USA.
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13
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Ding D, He X, Agarry IE, Wang Y, Zhou F, Li Y, Kan J, Cai T, Chen K. Profile of Human Milk Phospholipids at Different Lactation Stages with UPLC/Q-TOF-MS: Characterization, Distribution, and Differences. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:6326-6337. [PMID: 37040528 DOI: 10.1021/acs.jafc.2c07512] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Human milk phospholipids are important for the regular growth and development of infants. Ultra-high-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC/Q-TOF-MS) was employed to qualitatively and quantitatively analyze 277 phospholipid molecular species in 112 human milk samples to obtain a detailed profile of human milk phospholipids along the lactation stage. MS/MS fragmentation patterns of sphingomyelin, phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, and phosphatidylserine were characterized in detail. Phosphatidylcholine is the most dominant group, followed by sphingomyelin. PC(18:0/18:2), SM(d18:1/24:1), PE(18:0/18:0), PS(18:0/20:4), and PI(18:0/18:2) showed the highest average concentration among all of the phosphatidylcholine, sphingomyelin, phosphatidylethanolamine, phosphatidylserine, and phosphatidylinositol molecular species, respectively. The fatty acids attached to the phospholipid molecules were mainly palmitic, stearic, oleic, and linoleic acids, and the plasmalogens decreased along the lactation stage. The increase of sphingomyelins and phosphatidylethanolamines and the decrease of phosphatidylcholines are the key changes from colostrum to transitional milk; the increase of lysophosphatidylcholines and lysophosphatidylethanolamines and the continuous decrease of phosphatidylcholines are the vital changes from transitional milk to mature milk.
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Affiliation(s)
- Desheng Ding
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, P. R. China
- Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, P. R. China
| | - Xiaoling He
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P. R. China
| | - Israel Emiezi Agarry
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, P. R. China
- Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, P. R. China
- Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, P. R. China
| | - Yuankai Wang
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, P. R. China
- Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, P. R. China
| | - Fenglan Zhou
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, P. R. China
- Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, P. R. China
| | - Yunchang Li
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, P. R. China
- Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, P. R. China
| | - Jianquan Kan
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, P. R. China
- Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, P. R. China
- Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, P. R. China
| | - Tian Cai
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, P. R. China
| | - Kewei Chen
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, P. R. China
- Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, P. R. China
- Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, P. R. China
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14
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Phospholipids molecular species, proteins secondary structure, and emulsion microstructure of egg yolk with reduced polar and/or nonpolar lipids. Int J Biol Macromol 2023; 233:123529. [PMID: 36740113 DOI: 10.1016/j.ijbiomac.2023.123529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
This study investigated the phospholipids (PLs) molecular species (PLs-MS), protein secondary structure (PSS), and emulsion microstructure of the egg yolk (EY) treated with supercritical-CO2 (T1), hexane (T2), and ethanol {at room temperature (T3) and 65 °C (T4)}. PLs-MS, PSS, and microstructure of EY emulsion were investigated with UPLC-Q-TOF-MS, Fourier-transforms infrared and Raman spectroscopy, and confocal laser scanning microscope, respectively. Predominant PLs molecular fractions were C18:0-C20:4, C18:0-C20:4, C16:0-C18:2, C16:0, C18:0-C18:2, and d18:1/16:0, for phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, lysophosphatidylcholine, sphingomyelin, and phosphatidylserine, respectively. All the PLs-MS were highest for T1 and many of them (C14:0-C16:0, C18:0-C18:1, C18:0-C20:3) were absent in T2, T3, and T4. PSS components (α-helices, β-sheets, β-turn, and random coil) were highest for T4, followed by T3, T2, T1, and control (non-treated EY). However, T1-added o/w emulsion showed excellent stability (95.64 %) with smaller and denser oil droplets due to better ionic interactions by synergistic effect of PLs-MS and PSS components.
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15
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Petralia LMC, van Diepen A, Nguyen DL, Lokker LA, Sartono E, Bennuru S, Nutman TB, Pfarr K, Hoerauf A, Wanji S, Foster JM, Hokke CH. Unraveling cross-reactivity of anti-glycan IgG responses in filarial nematode infections. Front Immunol 2023; 14:1102344. [PMID: 36949937 PMCID: PMC10026598 DOI: 10.3389/fimmu.2023.1102344] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 02/02/2023] [Indexed: 03/08/2023] Open
Abstract
Parasitic nematodes responsible for filarial diseases cause chronic disablement in humans worldwide. Elimination programs have substantially reduced the rate of infection in certain areas, but limitations of current diagnostics for population surveillance have been pointed out and improved assays are needed to reach the elimination targets. While serological tests detecting antibodies to parasite antigens are convenient tools, those currently available are compromised by the occurrence of antibodies cross-reactive between nematodes, as well as by the presence of residual antibodies in sera years after treatment and clearance of the infection. We recently characterized the N-linked and glycosphingolipid derived glycans of the parasitic nematode Brugia malayi and revealed the presence of various antigenic structures that triggered immunoglobulin G (IgG) responses in infected individuals. To address the specificity of IgG binding to these glycan antigens, we screened microarrays containing Brugia malayi glycans with plasma from uninfected individuals and from individuals infected with Loa loa, Onchocerca volvulus, Mansonella perstans and Wuchereria bancrofti, four closely related filarial nematodes. IgG to a restricted subset of cross-reactive glycans was observed in infection plasmas from all four species. In plasma from Onchocerca volvulus and Mansonella perstans infected individuals, IgG binding to many more glycans was additionally detected, resulting in total IgG responses similar to the ones of Brugia malayi infected individuals. For these infection groups, Brugia malayi, Onchocerca volvulus and Mansonella perstans, we further studied the different IgG subclasses to Brugia malayi glycans. In all three infections, IgG1 and IgG2 appeared to be the major subclasses involved in response to glycan antigens. Interestingly, in Brugia malayi infected individuals, we observed a marked reduction in particular in IgG2 to parasite glycans post-treatment with anthelminthic, suggesting a promising potential for diagnostic applications. Thus, we compared the IgG response to a broad repertoire of Brugia malayi glycans in individuals infected with various filarial nematodes. We identified broadly cross-reactive and more specific glycan targets, extending the currently scarce knowledge of filarial nematode glycosylation and host anti-glycan antibody response. We believe that our initial findings could be further exploited to develop disease-specific diagnostics as part of an integrated approach for filarial disease control.
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Affiliation(s)
- Laudine M. C. Petralia
- Department of Parasitology, Leiden University – Center of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
- Division of Protein Expression & Modification, New England Biolabs, Ipswich, MA, United States
| | - Angela van Diepen
- Department of Parasitology, Leiden University – Center of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Dieu-Linh Nguyen
- Department of Parasitology, Leiden University – Center of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Lena A. Lokker
- Department of Parasitology, Leiden University – Center of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Erliyani Sartono
- Department of Parasitology, Leiden University – Center of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Sasisekhar Bennuru
- Laboratory of Parasitic Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Thomas B. Nutman
- Laboratory of Parasitic Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Kenneth Pfarr
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany
| | - Achim Hoerauf
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany
| | - Samuel Wanji
- Epidemiology and Control of Infectious Diseases, Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon
| | - Jeremy M. Foster
- Division of Protein Expression & Modification, New England Biolabs, Ipswich, MA, United States
| | - Cornelis H. Hokke
- Department of Parasitology, Leiden University – Center of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
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16
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Yan T, Born MEN, Prentice BM. Structural Elucidation and Relative Quantification of Sodium- and Potassium-Cationized Phosphatidylcholine Regioisomers Directly from Tissue Using Electron Induced Dissociation. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 2023; 485:116998. [PMID: 37601139 PMCID: PMC10438893 DOI: 10.1016/j.ijms.2022.116998] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Comprehensive structural characterization of phosphatidylcholines (PCs) is essential to understanding their biological functions and roles in metabolism. Electron induced dissociation (EID) of protonated PCs directly generated from biological tissues has previously been shown to provide in-depth structural information on the lipid headgroup, regiosiomerism of fatty acyl tails and double bond positions. Although phosphatidylcholine ions formed via alkali metal cationization (i.e., [M + Na]+ and [M + K]+) are commonly generated during matrix-assisted laser desorption/ionization (MALDI) imaging mass spectrometry experiments, the gas-phase ion chemistry behavior of EID on sodium- and potassium-cationized phosphatidylcholine ion types has not been studied for ions generated directly from tissue. Herein, we demonstrate EID on [M + Na]+ and [M + K]+ ion types in a MALDI imaging mass spectrometry workflow for lipid structural characterization. Briefly, near-complete structural information can be obtained upon EID of sodium- and potassium-cationized PCs, including diagnostic fragmentation of the lipid headgroup as well as identification of fatty acyl chain positions and double bond position. EID of cationized lipids generates sn-specific glycerol backbone cleavages as well as a favorable combined loss of sn-2 fatty acid with choline over sn-1, allowing for facile differentiation and relative quantification of PC regioisomers. Moreover, relative quantification of sn-positional isomers from biological tissue reveals that the relative percentages of sodium- and potassium-cationized sn-positional isomers varies significantly in different regions of rat brain tissue.
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Affiliation(s)
- Tingting Yan
- Department of Chemistry, University of Florida, Gainesville, FL 32611
| | | | - Boone M. Prentice
- Department of Chemistry, University of Florida, Gainesville, FL 32611
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17
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Jia S, Chang S, Zhang L, Gui Z, Liu L, Ma Z, Li S, Huang X, Zhong H. Plasmonic Hydroxyl Radical-Driven Epoxidation of Fatty Acid Double Bonds in Nanoseconds for On-Tissue Mass-Spectrometric Analysis and Bioimaging. Anal Chem 2023; 95:3976-3985. [PMID: 36633955 DOI: 10.1021/acs.analchem.2c03759] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Lipids represent a large family of compounds with highly diverse structures that are involved in complex biological processes. A photocatalytic technique of on-tissue epoxidation of C=C double bonds has been developed for in situ mass spectrometric identification and spatial imaging of positional isomers of lipids. It is based on the plasmonic hot-electron transfer from irradiated gold nanowires to redox-active organic matrix compounds that undergo bond cleavages and generate hydroxyl radicals in nanoseconds. Intermediate radical anions and negative fragment ions have been unambiguously identified. Under the irradiation of a pulsed laser of the third harmonic of Nd3+:YAG (355 nm), the hydroxyl radical-driven epoxidation of unsaturated lipids with different numbers of C=C bonds can be completed in nanoseconds with high yields of up to 95%. Locations of C=C bonds were recognized with diagnostic fragment ions that were produced by either collision with an inert gas or auto-fragmentation resulting from the impact of energetic hot electrons and vibrational excitation. This technique has been applied to the analysis of breast cancer tissues of mice models without extensive sample processes. It was experimentally demonstrated that C=C bonds may be formed at different positions of not only regular mono- or poly-unsaturated fatty acids but also other odd-numbered long-chain fatty acids.
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Affiliation(s)
- Shanshan Jia
- Laboratory of Mass Spectrometry, College of Chemistry, Central China Normal University, Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, Wuhan, Hubei 430079, P.R. China
| | - Shao Chang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Science and Technology, Guangxi University, Center for Instrumental Analysis of Guangxi University, Nanning, Guangxi 530004, P.R. China
| | - Lin Zhang
- Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Zhengwei Gui
- Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Linhui Liu
- Laboratory of Mass Spectrometry, College of Chemistry, Central China Normal University, Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, Wuhan, Hubei 430079, P.R. China
| | - Zhenglan Ma
- Laboratory of Mass Spectrometry, College of Chemistry, Central China Normal University, Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, Wuhan, Hubei 430079, P.R. China
| | - Shuyu Li
- Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xingchen Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Science and Technology, Guangxi University, Center for Instrumental Analysis of Guangxi University, Nanning, Guangxi 530004, P.R. China
| | - Hongying Zhong
- Laboratory of Mass Spectrometry, College of Chemistry, Central China Normal University, Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, Wuhan, Hubei 430079, P.R. China.,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Science and Technology, Guangxi University, Center for Instrumental Analysis of Guangxi University, Nanning, Guangxi 530004, P.R. China
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18
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Michael JA, Mutuku SM, Ucur B, Sarretto T, Maccarone AT, Niehaus M, Trevitt AJ, Ellis SR. Mass Spectrometry Imaging of Lipids Using MALDI Coupled with Plasma-Based Post-Ionization on a Trapped Ion Mobility Mass Spectrometer. Anal Chem 2022; 94:17494-17503. [PMID: 36473074 DOI: 10.1021/acs.analchem.2c03745] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Here we report the development and optimization of a mass spectrometry imaging (MSI) platform that combines an atmospheric-pressure matrix-assisted laser desorption/ionization platform with plasma postionization (AP-MALDI-PPI) and trapped ion mobility spectrometry (TIMS). We discuss optimal parameters for operating the source, characterize the behavior of a variety of lipid classes in positive- and negative-ion modes, and explore the capabilities for lipid imaging using murine brain tissue. The instrument generates high signal-to-noise for numerous lipid species, with mass spectra sharing many similarities to those obtained using laser postionization (MALDI-2). The system is especially well suited for detecting lipids such as phosphatidylethanolamine (PE), as well as numerous sphingolipid classes and glycerolipids. For the first time, the coupling of plasma-based postionization with ion mobility is presented, and we show the value of ion mobility for the resolution and identification of species within rich spectra that contain numerous isobaric/isomeric signals that are not resolved in the m/z dimension alone, including isomeric PE and demethylated phosphatidylcholine lipids produced by in-source fragmentation. The reported instrument provides a powerful and user-friendly approach for MSI of lipids.
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Affiliation(s)
- Jesse A Michael
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia.,Illawarra Health and Medical Research Institute, Northfields Avenue, Wollongong, NSW 2522, Australia
| | - Shadrack M Mutuku
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia.,Illawarra Health and Medical Research Institute, Northfields Avenue, Wollongong, NSW 2522, Australia
| | - Boris Ucur
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
| | - Tassiani Sarretto
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia.,Illawarra Health and Medical Research Institute, Northfields Avenue, Wollongong, NSW 2522, Australia
| | - Alan T Maccarone
- Molecular Horizons and School of Chemistry and Molecular Bioscience Mass Spectrometry Facility, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
| | - Marcel Niehaus
- Bruker Daltonics GmbH & Co. KG, Fahrenheitstr. 4, 28359, Bremen, Germany
| | - Adam J Trevitt
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
| | - Shane R Ellis
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia.,Illawarra Health and Medical Research Institute, Northfields Avenue, Wollongong, NSW 2522, Australia
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19
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Bakhytkyzy I, Hewelt-Belka W, Kot-Wasik A. A comprehensive lipidomic analysis of oilseeds using LC-Q-TOF-MS and dispersive micro-solid phase (D-μ-SPE) extraction techniques. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.105037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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20
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Karlstaedt A, Taegtmeyer H. Cardio-Onco-Metabolism - Metabolic vulnerabilities in cancer and the heart. J Mol Cell Cardiol 2022; 171:71-80. [PMID: 35777454 PMCID: PMC10193535 DOI: 10.1016/j.yjmcc.2022.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 02/05/2022] [Accepted: 06/21/2022] [Indexed: 10/17/2022]
Abstract
Cancer and cardiovascular diseases (CVDs) are the leading cause of death worldwide. Metabolic remodeling is a hallmark of both cancer and the failing heart. Tumors reprogram metabolism to optimize nutrient utilization and meet increased demands for energy provision, biosynthetic pathways, and proliferation. Shared risk factors for cancer and CVDs suggest intersecting mechanisms for disease pathogenesis and progression. In this review, we aim to highlight the role of metabolic remodeling in cancer and its potential to impair cardiac function. Understanding these mechanisms will help us develop biomarkers, better therapies, and identify patients at risk of developing heart disease after surviving cancer.
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Affiliation(s)
- Anja Karlstaedt
- Smidt Heart Institute, Department of Cardiology, Cedars Sinai Medical Center, Los Angeles, California, USA.
| | - Heinrich Taegtmeyer
- Department of Internal Medicine, Division of Cardiology, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, Texas, USA
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21
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Li W, Luo LX, Zhou QQ, Gong HB, Fu YY, Yan CY, Li E, Sun J, Luo Z, Ding ZJ, Zhang QY, Mu HL, Cao YF, Ouyang SH, Kurihara H, Li YF, Sun WY, Li M, He RR. Phospholipid peroxidation inhibits autophagy via stimulating the delipidation of oxidized LC3-PE. Redox Biol 2022; 55:102421. [PMID: 35964342 PMCID: PMC9389305 DOI: 10.1016/j.redox.2022.102421] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/17/2022] [Accepted: 07/21/2022] [Indexed: 01/18/2023] Open
Abstract
Phospholipid peroxidation of polyunsaturated fatty acids at the bis-allylic position drives ferroptosis. Here we identify a novel role for phospholipid peroxidation in the inhibition of autophagy. Using in vitro and in vivo models, we report that phospholipid peroxidation induced by glutathione peroxidase-4 inhibition and arachidonate 15-lipoxygenase overexpression leads to overload of peroxidized phospholipids and culminate in inhibition of autophagy. Functional and lipidomics analysis further demonstrated that inhibition of autophagy was associated with an increase of peroxidized phosphatidylethanolamine (PE) conjugated LC3. We further demonstrate that autophagy inhibition occurred due to preferential cleavage of peroxidized LC3-PE by ATG4B to yield delipidated LC3. Mouse models of phospholipid peroxidation and autophagy additionally supported a role for peroxidized PE in autophagy inhibition. Our results agree with the recognized role of endoplasmic reticulum as the primary source for autophagosomal membranes. In summary, our studies demonstrated that phospholipid peroxidation inhibited autophagy via stimulating the ATG4B-mediated delipidation of peroxidized LC3-PE.
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Affiliation(s)
- Wen Li
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; Department of Pediatrics, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - Lian-Xiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong, 524023, China
| | - Qing-Qing Zhou
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - Hai-Biao Gong
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - Yuan-Yuan Fu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Chang-Yu Yan
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - E Li
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - Jie Sun
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - Zhuo Luo
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - Zhao-Jun Ding
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - Qiong-Yi Zhang
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - Han-Lu Mu
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China
| | - Yun-Feng Cao
- Joint Laboratory of Dalian Runsheng Kangtai and Jinan University, Jinan University, Guangzhou, 510632, China
| | - Shu-Hua Ouyang
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China; Joint Laboratory of Dalian Runsheng Kangtai and Jinan University, Jinan University, Guangzhou, 510632, China
| | - Hiroshi Kurihara
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China; Joint Laboratory of Dalian Runsheng Kangtai and Jinan University, Jinan University, Guangzhou, 510632, China
| | - Yi-Fang Li
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China; Joint Laboratory of Dalian Runsheng Kangtai and Jinan University, Jinan University, Guangzhou, 510632, China
| | - Wan-Yang Sun
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China; Joint Laboratory of Dalian Runsheng Kangtai and Jinan University, Jinan University, Guangzhou, 510632, China.
| | - Min Li
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China.
| | - Rong-Rong He
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China; Joint Laboratory of Dalian Runsheng Kangtai and Jinan University, Jinan University, Guangzhou, 510632, China; School of Traditional Chinese Medicine, Jinan University, Guangzhou, 510632, China.
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22
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Ma XH, Liu JHZ, Liu CY, Sun WY, Duan WJ, Wang G, Kurihara H, He RR, Li YF, Chen Y, Shang H. ALOX15-launched PUFA-phospholipids peroxidation increases the susceptibility of ferroptosis in ischemia-induced myocardial damage. Signal Transduct Target Ther 2022; 7:288. [PMID: 35970840 PMCID: PMC9378747 DOI: 10.1038/s41392-022-01090-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 06/02/2022] [Accepted: 06/26/2022] [Indexed: 12/31/2022] Open
Abstract
Myocardial ischemia/reperfusion (I/R) injury is a classic type of cardiovascular disease characterized by injury to cardiomyocytes leading to various forms of cell death. It is believed that irreversible myocardial damage resulted from I/R occurs due to oxidative stress evoked during the reperfusion phase. Here we demonstrate that ischemia triggers a specific redox reaction of polyunsaturated fatty acids (PUFA)-phospholipids in myocardial cells, which acts as a priming signaling that initiates the outbreak of robust oxidative damage in the reperfusion phase. Using animal and in vitro models, the crucial lipid species in I/R injury were identified to be oxidized PUFAs enriched phosphatidylethanolamines. Using multi-omics, arachidonic acid 15-lipoxygenase-1 (ALOX15) was identified as the primary mediator of ischemia-provoked phospholipid peroxidation, which was further confirmed using chemogenetic approaches. Collectively, our results reveal that ALOX15 induction in the ischemia phase acts as a “burning point” to ignite phospholipid oxidization into ferroptotic signals. This finding characterizes a novel molecular mechanism for myocardial ischemia injury and offers a potential therapeutic target for early intervention of I/R injury.
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Affiliation(s)
- Xiao-Hui Ma
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China.,Institute of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi, 830054, China
| | - Jiang-Han-Zi Liu
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China
| | - Chun-Yu Liu
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China
| | - Wan-Yang Sun
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China
| | - Wen-Jun Duan
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China
| | - Guan Wang
- Innovation Center of Nursing Research, Nursing Key Laboratory of Sichuan Province, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hiroshi Kurihara
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China
| | - Rong-Rong He
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China. .,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China. .,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China.
| | - Yi-Fang Li
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China. .,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China. .,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China.
| | - Yang Chen
- College of Pharmacy, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Hongcai Shang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education, Dongzhimen Hospital, Beijing University of Chinese Medicine, 100700, Beijing, China.
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23
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A method for a comprehensive lipidomic analysis of flaxseed (Linum usitatissimum) with the use of LC–Q-TOF-MS and dispersive micro-solid-phase (μDSPE) extraction. Food Chem 2022; 381:132290. [DOI: 10.1016/j.foodchem.2022.132290] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/20/2022] [Accepted: 01/26/2022] [Indexed: 11/20/2022]
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24
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Kirschbaum C, Greis K, Gewinner S, Schöllkopf W, Meijer G, von Helden G, Pagel K. Cryogenic infrared spectroscopy provides mechanistic insight into the fragmentation of phospholipid silver adducts. Anal Bioanal Chem 2022; 414:5275-5285. [PMID: 35147717 PMCID: PMC9242943 DOI: 10.1007/s00216-022-03927-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/07/2022] [Accepted: 01/25/2022] [Indexed: 11/25/2022]
Abstract
Tandem mass spectrometry is arguably the most important analytical tool for structure elucidation of lipids and other metabolites. By fragmenting intact lipid ions, valuable structural information such as the lipid class and fatty acyl composition are readily obtainable. The information content of a fragment spectrum can often be increased by the addition of metal cations. In particular, the use of silver ions is deeply rooted in the history of lipidomics due to their propensity to coordinate both electron-rich heteroatoms and C = C bonds in aliphatic chains. Not surprisingly, coordination of silver ions was found to enable the distinction of sn-isomers in glycerolipids by inducing reproducible intensity differences in the fragment spectra, which could, however, not be rationalized. Here, we investigate the fragmentation behaviors of silver-adducted sn- and double bond glycerophospholipid isomers by probing fragment structures using cryogenic gas-phase infrared (IR) spectroscopy. Our results confirm that neutral headgroup loss from silver-adducted glycerophospholipids leads to dioxolane-type fragments generated by intramolecular cyclization. By combining high-resolution IR spectroscopy and computational modelling of silver-adducted fragments, we offer qualitative explanations for different fragmentation behaviors of glycerophospholipid isomers. Overall, the results demonstrate that gas-phase IR spectroscopy of fragment ions can significantly contribute to our understanding of lipid dissociation mechanisms and the influence of coordinating cations.
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Affiliation(s)
- Carla Kirschbaum
- Institut für Chemie und Biochemie, Freie Universität Berlin, 14195, Berlin, Germany
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Kim Greis
- Institut für Chemie und Biochemie, Freie Universität Berlin, 14195, Berlin, Germany
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Sandy Gewinner
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Wieland Schöllkopf
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Gerard Meijer
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Gert von Helden
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany
| | - Kevin Pagel
- Institut für Chemie und Biochemie, Freie Universität Berlin, 14195, Berlin, Germany.
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195, Berlin, Germany.
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25
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Watanabe A, Hama K, Watanabe K, Fujiwara Y, Yokoyama K, Murata S, Takita R. Controlled Tetradeuteration of Straight‐Chain Fatty Acids: Synthesis, Application, and Insight into the Metabolism of Oxidized Linoleic Acid. Angew Chem Int Ed Engl 2022; 61:e202202779. [PMID: 35411582 PMCID: PMC9324819 DOI: 10.1002/anie.202202779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Ayako Watanabe
- One-stop Sharing Facility Center for Future Drug Discoveries Graduate School of Pharmaceutical Sciences University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Kotaro Hama
- Faculty of Pharma-Sciences Teikyo University 2-11-1 Kaga, Itabashi-ku Tokyo 173-8605 Japan
- Advanced Comprehensive Research Organization (ACRO) Teikyo University Japan
| | - Kohei Watanabe
- One-stop Sharing Facility Center for Future Drug Discoveries Graduate School of Pharmaceutical Sciences University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Yuko Fujiwara
- Faculty of Pharma-Sciences Teikyo University 2-11-1 Kaga, Itabashi-ku Tokyo 173-8605 Japan
| | - Kazuaki Yokoyama
- Faculty of Pharma-Sciences Teikyo University 2-11-1 Kaga, Itabashi-ku Tokyo 173-8605 Japan
| | - Shigeo Murata
- One-stop Sharing Facility Center for Future Drug Discoveries Graduate School of Pharmaceutical Sciences University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryo Takita
- One-stop Sharing Facility Center for Future Drug Discoveries Graduate School of Pharmaceutical Sciences University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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26
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Kuerschner L, Thiele C. Tracing Lipid Metabolism by Alkyne Lipids and Mass Spectrometry: The State of the Art. Front Mol Biosci 2022; 9:880559. [PMID: 35669564 PMCID: PMC9163959 DOI: 10.3389/fmolb.2022.880559] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/19/2022] [Indexed: 01/22/2023] Open
Abstract
Lipid tracing studies are a key method to gain a better understanding of the complex metabolic network lipids are involved in. In recent years, alkyne lipid tracers and mass spectrometry have been developed as powerful tools for such studies. This study aims to review the present standing of the underlying technique, highlight major findings the strategy allowed for, summarize its advantages, and discuss some limitations. In addition, an outlook on future developments is given.
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27
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A mixed deep eutectic solvents-based air-assisted liquid–liquid microextraction of surfactants from exhaled breath condensate samples prior to HPLC-MS/MS analysis. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1204:123289. [DOI: 10.1016/j.jchromb.2022.123289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 04/19/2022] [Accepted: 05/07/2022] [Indexed: 11/19/2022]
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28
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Grabarics M, Lettow M, Kirschbaum C, Greis K, Manz C, Pagel K. Mass Spectrometry-Based Techniques to Elucidate the Sugar Code. Chem Rev 2022; 122:7840-7908. [PMID: 34491038 PMCID: PMC9052437 DOI: 10.1021/acs.chemrev.1c00380] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Indexed: 12/22/2022]
Abstract
Cells encode information in the sequence of biopolymers, such as nucleic acids, proteins, and glycans. Although glycans are essential to all living organisms, surprisingly little is known about the "sugar code" and the biological roles of these molecules. The reason glycobiology lags behind its counterparts dealing with nucleic acids and proteins lies in the complexity of carbohydrate structures, which renders their analysis extremely challenging. Building blocks that may differ only in the configuration of a single stereocenter, combined with the vast possibilities to connect monosaccharide units, lead to an immense variety of isomers, which poses a formidable challenge to conventional mass spectrometry. In recent years, however, a combination of innovative ion activation methods, commercialization of ion mobility-mass spectrometry, progress in gas-phase ion spectroscopy, and advances in computational chemistry have led to a revolution in mass spectrometry-based glycan analysis. The present review focuses on the above techniques that expanded the traditional glycomics toolkit and provided spectacular insight into the structure of these fascinating biomolecules. To emphasize the specific challenges associated with them, major classes of mammalian glycans are discussed in separate sections. By doing so, we aim to put the spotlight on the most important element of glycobiology: the glycans themselves.
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Affiliation(s)
- Márkó Grabarics
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
| | - Maike Lettow
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
| | - Carla Kirschbaum
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
| | - Kim Greis
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
| | - Christian Manz
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
| | - Kevin Pagel
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
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29
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Watanabe A, Hama K, Watanabe K, Fujiwara Y, Yokoyama K, Murata S, Takita R. Controlled Tetradeuteration of Straight‐Chain Fatty Acids: Synthesis, Application, and Insight into the Metabolism of Oxidized Linoleic Acid. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ayako Watanabe
- One-stop Sharing Facility Center for Future Drug Discoveries Graduate School of Pharmaceutical Sciences University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Kotaro Hama
- Faculty of Pharma-Sciences Teikyo University 2-11-1 Kaga, Itabashi-ku Tokyo 173-8605 Japan
- Advanced Comprehensive Research Organization (ACRO) Teikyo University Japan
| | - Kohei Watanabe
- One-stop Sharing Facility Center for Future Drug Discoveries Graduate School of Pharmaceutical Sciences University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Yuko Fujiwara
- Faculty of Pharma-Sciences Teikyo University 2-11-1 Kaga, Itabashi-ku Tokyo 173-8605 Japan
| | - Kazuaki Yokoyama
- Faculty of Pharma-Sciences Teikyo University 2-11-1 Kaga, Itabashi-ku Tokyo 173-8605 Japan
| | - Shigeo Murata
- One-stop Sharing Facility Center for Future Drug Discoveries Graduate School of Pharmaceutical Sciences University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryo Takita
- One-stop Sharing Facility Center for Future Drug Discoveries Graduate School of Pharmaceutical Sciences University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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30
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Guo C, Zhai J, Chen Q, Du X, Xie X. Phase transfer of fatty acids into ultrasmall nanospheres for colorimetric detection of lipase and albumin. Chem Commun (Camb) 2022; 58:5037-5040. [PMID: 35377380 DOI: 10.1039/d2cc01089e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Colorimetric detection of fatty acids during biological interactions is extremely difficult since they are optically silent. Here, fatty acids are found to function as ion-exchangers in ultrasmall polymeric nanospheres to facilitate the protonation of chromoionophores, causing a vivid color change between red and blue. With an excellent detection limit of 1.8 μg mL-1 for oleic acid, colorimetric assays for lipase and albumin are developed with quick response, high sensitivity, and low cost.
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Affiliation(s)
- Chao Guo
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Jingying Zhai
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Qinghan Chen
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Xinfeng Du
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Xiaojiang Xie
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
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31
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Silva ACR, Garrett R, Rezende CM, Meckelmann SW. Lipid Characterization of Arabica and Robusta Coffee Beans by Liquid Chromatography-Ion Mobility-Mass Spectrometry. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Carriot N, Barry-Martinet R, Briand JF, Ortalo-Magné A, Culioli G. Impact of phosphate concentration on the metabolome of biofilms of the marine bacterium Pseudoalteromonas lipolytica. Metabolomics 2022; 18:18. [PMID: 35290545 DOI: 10.1007/s11306-022-01875-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 02/22/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Marine biofilms are the most widely distributed mode of life on Earth and drive biogeochemical cycling processes of most elements. Phosphorus (P) is essential for many biological processes such as energy transfer mechanisms, biological information storage and membrane integrity. OBJECTIVES Our aim was to analyze the effect of a gradient of ecologically relevant phosphate concentrations on the biofilm-forming capacity and the metabolome of the marine bacterium Pseudoalteromonas lipolytica TC8. METHODS In addition to the evaluation of the effect of different phosphate concentration on the biomass, structure and gross biochemical composition of biofilms of P. lipolytica TC8, untargeted metabolomics based on liquid chromatography-mass spectrometry (LC-MS) analysis was used to determine the main metabolites impacted by P-limiting conditions. Annotation of the most discriminating and statistically robust metabolites was performed through the concomitant use of molecular networking and MS/MS fragmentation pattern interpretation. RESULTS At the lowest phosphate concentration, biomass, carbohydrate content and three-dimensional structures of biofilms tended to decrease. Furthermore, untargeted metabolomics allowed for the discrimination of the biofilm samples obtained at the five phosphate concentrations and the highlighting of a panel of metabolites mainly implied in such a discrimination. A large part of the metabolites of the resulting dataset were then putatively annotated. Ornithine lipids were found in increasing quantity when the phosphate concentration decreased, while the opposite trend was observed for oxidized phosphatidylethanolamines (PEs). CONCLUSION This study demonstrated the suitability of LC-MS-based untargeted metabolomics for evaluating the effect of culture conditions on marine bacterial biofilms. More precisely, these results supported the high plasticity of the membrane of P. lipolytica TC8, while the role of the oxidized PEs remains to be clarified.
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Affiliation(s)
- Nathan Carriot
- Laboratoire MAPIEM, Université de Toulon, EA 4323, La Garde, France
| | | | | | | | - Gérald Culioli
- Laboratoire MAPIEM, Université de Toulon, EA 4323, La Garde, France.
- Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale (IMBE), UMR CNRS-IRD-Avignon, Université-Aix-Marseille Université, Avignon, France.
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Han X, Gross RW. The foundations and development of lipidomics. J Lipid Res 2022; 63:100164. [PMID: 34953866 PMCID: PMC8953652 DOI: 10.1016/j.jlr.2021.100164] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/15/2022] Open
Abstract
For over a century, the importance of lipid metabolism in biology was recognized but difficult to mechanistically understand due to the lack of sensitive and robust technologies for identification and quantification of lipid molecular species. The enabling technological breakthroughs emerged in the 1980s with the development of soft ionization methods (Electrospray Ionization and Matrix Assisted Laser Desorption/Ionization) that could identify and quantify intact individual lipid molecular species. These soft ionization technologies laid the foundations for what was to be later named the field of lipidomics. Further innovative advances in multistage fragmentation, dramatic improvements in resolution and mass accuracy, and multiplexed sample analysis fueled the early growth of lipidomics through the early 1990s. The field exponentially grew through the use of a variety of strategic approaches, which included direct infusion, chromatographic separation, and charge-switch derivatization, which facilitated access to the low abundance species of the lipidome. In this Thematic Review, we provide a broad perspective of the foundations, enabling advances, and predicted future directions of growth of the lipidomics field.
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Affiliation(s)
- Xianlin Han
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA; Departments of Medicine - Diabetes, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.
| | - Richard W Gross
- Division of Bioorganic Chemistry and Molecular Pharmacology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA; Department of Chemistry, Washington University, St. Louis, MO, USA
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34
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Sorng S, Balayssac S, Danoun S, Assemat G, Mirre A, Cristofoli V, Le Lamer AC, Jullian V, Gilard V, Fabre N, Martino R, Malet-Martino M. Quality assessment of Curcuma dietary supplements: complementary data from LC-MS and 1H NMR. J Pharm Biomed Anal 2022; 212:114631. [DOI: 10.1016/j.jpba.2022.114631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 10/19/2022]
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35
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Petralia LM, van Diepen A, Lokker LA, Nguyen DL, Sartono E, Khatri V, Kalyanasundaram R, Taron CH, Foster JM, Hokke CH. Mass spectrometric and glycan microarray-based characterization of the filarial nematode Brugia malayi glycome reveals anionic and zwitterionic glycan antigens. Mol Cell Proteomics 2022; 21:100201. [PMID: 35065273 PMCID: PMC9046957 DOI: 10.1016/j.mcpro.2022.100201] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/03/2022] [Accepted: 01/16/2022] [Indexed: 11/30/2022] Open
Abstract
Millions of people worldwide are infected with filarial nematodes, responsible for lymphatic filariasis (LF) and other diseases causing chronic disablement. Elimination programs have resulted in a substantial reduction of the rate of infection in certain areas creating a need for improved diagnostic tools to establish robust population surveillance and avoid LF resurgence. Glycans from parasitic helminths are emerging as potential antigens for use in diagnostic assays. However, despite its crucial role in host–parasite interactions, filarial glycosylation is still largely, structurally, and functionally uncharacterized. Therefore, we investigated the glycan repertoire of the filarial nematode Brugia malayi. Glycosphingolipid and N-linked glycans were extracted from several life-stages using enzymatic release and characterized using a combination of MALDI-TOF-MS and glycan sequencing techniques. Next, glycans were purified by HPLC and printed onto microarrays to assess the host anti-glycan antibody response. Comprehensive glycomic analysis of B. malayi revealed the presence of several putative antigenic motifs such as phosphorylcholine and terminal glucuronic acid. Glycan microarray screening showed a recognition of most B. malayi glycans by immunoglobulins from rhesus macaques at different time points after infection, which permitted the characterization of the dynamics of anti-glycan immunoglobulin G and M during the establishment of brugian filariasis. A significant level of IgG binding to the parasite glycans was also detected in infected human plasma, while IgG binding to glycans decreased after anthelmintic treatment. Altogether, our work identifies B. malayi glycan antigens and reveals antibody responses from the host that could be exploited as potential markers for LF. Antigenic B. malayi N-linked and GSL glycans were structurally defined. IgG/IgM is induced to a subset of B. malayi glycans upon infection of rhesus macaques. Preferential IgG response to B. malayi glycans observed in chronically infected humans. Marked drop of anti-glycan IgG following treatment of individuals with anthelminthic.
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36
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Prentice BM. Gas-Phase Ion-Ion Reactions for Lipid Identification in Biological Tissue Sections. Methods Mol Biol 2022; 2437:3-19. [PMID: 34902137 PMCID: PMC9148664 DOI: 10.1007/978-1-0716-2030-4_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The unambiguous identification of isobaric (i.e., same nominal mass) and isomeric (i.e., same exact mass) lipids remains a challenging yet vital aspect of imaging mass spectrometry (IMS) workflows. This chapter presents a methodology for the preparation of biological tissue samples and the use of a hybrid mass spectrometer to perform gas-phase charge inversion ion/ion reactions for improved lipid identification. This gas-phase ion/ion reaction method provides lipid structural information beyond what can be obtained via conventional tandem mass spectrometry (MS/MS) experiments. While this procedure is described here for the identification of phosphatidylcholine (PC) analyte cations using 1,4-phenylenedipropionic acid reagent dianions, it can readily be generalized to perform a diverse array of ion/ion reaction chemistries.
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Affiliation(s)
- Boone M Prentice
- Department of Chemistry, University of Florida, Gainesville, FL, USA.
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37
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Chitpin JG, Surendra A, Nguyen TT, Taylor GP, Xu H, Alecu I, Ortega R, Tomlinson JJ, Crawley AM, McGuinty M, Schlossmacher MG, Saunders-Pullman R, Cuperlovic-Culf M, Bennett SAL, Perkins TJ. BATL: Bayesian annotations for targeted lipidomics. Bioinformatics 2021; 38:1593-1599. [PMID: 34951624 PMCID: PMC8896618 DOI: 10.1093/bioinformatics/btab854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 11/25/2021] [Accepted: 12/20/2021] [Indexed: 02/03/2023] Open
Abstract
MOTIVATION Bioinformatic tools capable of annotating, rapidly and reproducibly, large, targeted lipidomic datasets are limited. Specifically, few programs enable high-throughput peak assessment of liquid chromatography-electrospray ionization tandem mass spectrometry data acquired in either selected or multiple reaction monitoring modes. RESULTS We present here Bayesian Annotations for Targeted Lipidomics, a Gaussian naïve Bayes classifier for targeted lipidomics that annotates peak identities according to eight features related to retention time, intensity, and peak shape. Lipid identification is achieved by modeling distributions of these eight input features across biological conditions and maximizing the joint posterior probabilities of all peak identities at a given transition. When applied to sphingolipid and glycerophosphocholine selected reaction monitoring datasets, we demonstrate over 95% of all peaks are rapidly and correctly identified. AVAILABILITY AND IMPLEMENTATION BATL software is freely accessible online at https://complimet.ca/batl/ and is compatible with Safari, Firefox, Chrome and Edge. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Justin G Chitpin
- Regenerative Medicine Program, Ottawa, ON K1H 8L6, Canada,Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada,Neural Regeneration Laboratory and India Taylor Lipidomics Research Platform, University of Ottawa Brain and Mind Research Institute, Ottawa, ON K1H 8M5, Canada,Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON K1H 8M5, Canada,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Anuradha Surendra
- Digital Technologies Research Center, National Research Council, Ottawa, ON K1A 0R6, Canada
| | - Thao T Nguyen
- Neural Regeneration Laboratory and India Taylor Lipidomics Research Platform, University of Ottawa Brain and Mind Research Institute, Ottawa, ON K1H 8M5, Canada,Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON K1H 8M5, Canada,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada,Department of Chemistry and Biomolecular Sciences, Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Graeme P Taylor
- Neural Regeneration Laboratory and India Taylor Lipidomics Research Platform, University of Ottawa Brain and Mind Research Institute, Ottawa, ON K1H 8M5, Canada,Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON K1H 8M5, Canada,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Hongbin Xu
- Neural Regeneration Laboratory and India Taylor Lipidomics Research Platform, University of Ottawa Brain and Mind Research Institute, Ottawa, ON K1H 8M5, Canada,Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON K1H 8M5, Canada,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Irina Alecu
- Neural Regeneration Laboratory and India Taylor Lipidomics Research Platform, University of Ottawa Brain and Mind Research Institute, Ottawa, ON K1H 8M5, Canada,Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON K1H 8M5, Canada,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Roberto Ortega
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY 10003, USA
| | - Julianna J Tomlinson
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada,Neuroscience Program, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada
| | - Angela M Crawley
- Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | | | - Michael G Schlossmacher
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada,Neuroscience Program, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada
| | | | - Miroslava Cuperlovic-Culf
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada,Digital Technologies Research Center, National Research Council, Ottawa, ON K1A 0R6, Canada
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38
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O'Brien KA, McNally BD, Sowton AP, Murgia A, Armitage J, Thomas LW, Krause FN, Maddalena LA, Francis I, Kavanagh S, Williams DP, Ashcroft M, Griffin JL, Lyon JJ, Murray AJ. Enhanced hepatic respiratory capacity and altered lipid metabolism support metabolic homeostasis during short-term hypoxic stress. BMC Biol 2021; 19:265. [PMID: 34911556 PMCID: PMC8675474 DOI: 10.1186/s12915-021-01192-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 11/12/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Tissue hypoxia is a key feature of several endemic hepatic diseases, including alcoholic and non-alcoholic fatty liver disease, and organ failure. Hypoxia imposes a severe metabolic challenge on the liver, potentially disrupting its capacity to carry out essential functions including fuel storage and the integration of lipid metabolism at the whole-body level. Mitochondrial respiratory function is understood to be critical in mediating the hepatic hypoxic response, yet the time-dependent nature of this response and the role of the respiratory chain in this remain unclear. RESULTS Here, we report that hepatic respiratory capacity is enhanced following short-term exposure to hypoxia (2 days, 10% O2) and is associated with increased abundance of the respiratory chain supercomplex III2+IV and increased cardiolipin levels. Suppression of this enhanced respiratory capacity, achieved via mild inhibition of mitochondrial complex III, disrupted metabolic homeostasis. Hypoxic exposure for 2 days led to accumulation of plasma and hepatic long chain acyl-carnitines. This was observed alongside depletion of hepatic triacylglycerol species with total chain lengths of 39-53 carbons, containing palmitic, palmitoleic, stearic, and oleic acids, which are associated with de novo lipogenesis. The changes to hepatic respiratory capacity and lipid metabolism following 2 days hypoxic exposure were transient, becoming resolved after 14 days in line with systemic acclimation to hypoxia and elevated circulating haemoglobin concentrations. CONCLUSIONS The liver maintains metabolic homeostasis in response to shorter term hypoxic exposure through transient enhancement of respiratory chain capacity and alterations to lipid metabolism. These findings may have implications in understanding and treating hepatic pathologies associated with hypoxia.
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Affiliation(s)
- Katie A O'Brien
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge, CB2 3EG, UK.
| | - Ben D McNally
- Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge, Sanger Building Tennis Court Road, Cambridge, CB2 1GA, UK
| | - Alice P Sowton
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge, CB2 3EG, UK
| | - Antonio Murgia
- Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge, Sanger Building Tennis Court Road, Cambridge, CB2 1GA, UK
| | - James Armitage
- Global Investigative Safety, GlaxoSmithKline R&D, Park Road, Ware, Hertfordshire, SG12 0DP, UK
| | - Luke W Thomas
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Hills Road, Cambridge, CB2 0QQ, UK
| | - Fynn N Krause
- Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge, Sanger Building Tennis Court Road, Cambridge, CB2 1GA, UK
| | - Lucas A Maddalena
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Hills Road, Cambridge, CB2 0QQ, UK
| | - Ian Francis
- Ultrastructure and Cellular Bioimaging, GlaxoSmithKline R&D, Park Road, Ware, Hertfordshire, SG12 0DP, UK
| | - Stefan Kavanagh
- Oncology Safety Sciences, Clinical Pharmacology & Safety Sciences, R&D, AstraZeneca, CB2 OAA, Cambridge, UK
| | - Dominic P Williams
- Functional and Mechanistic Safety, Clinical Pharmacology & Safety Sciences, R&D, AstraZeneca, CB2 OAA, Cambridge, UK
| | - Margaret Ashcroft
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Hills Road, Cambridge, CB2 0QQ, UK
| | - Julian L Griffin
- Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge, Sanger Building Tennis Court Road, Cambridge, CB2 1GA, UK
- Section of Biomolecular Medicine, Department of Digestion, Metabolism and Reproduction, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
| | - Jonathan J Lyon
- Global Investigative Safety, GlaxoSmithKline R&D, Park Road, Ware, Hertfordshire, SG12 0DP, UK
| | - Andrew J Murray
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge, CB2 3EG, UK.
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Sakallioglu IT, Maroli AS, Leite ADL, Powers R. A reversed phase ultra-high-performance liquid chromatography-data independent mass spectrometry method for the rapid identification of mycobacterial lipids. J Chromatogr A 2021; 1662:462739. [PMID: 34929571 DOI: 10.1016/j.chroma.2021.462739] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/30/2021] [Accepted: 12/05/2021] [Indexed: 11/17/2022]
Abstract
A rapid reversed-phase ultra-high-performance liquid chromatography-high resolution mass spectrometry based mycobacterial lipidomics approach is described. This method enables the separation of various lipid classes including lipids specific to mycobacterial, such as methoxy mycolic acid and α-mycolic acid. Lipid separation occurs during a relatively short runtime of 14 min on a charged surface hybrid C18 column. A high-resolution quadrupole-time of flight mass spectrometer and a data independent acquisition mode allowed for the simultaneous acquisition of the full scan and collision induced dissociation fragmentation. The proposed method provides lipid detection results equivalent to or better than existing methods, but with a faster throughput and an overall higher sensitivity. The reversed-phase ultra-high-performance liquid chromatography-high resolution mass spectrometry method was shown to obtain structural information for lipids extracted from Mycobacterium smegmatis, but the method is applicable to the analysis of lipids from various bacterial and mammalian cell lines.
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Affiliation(s)
- Isin T Sakallioglu
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln NE 68588-0304, USA
| | - Amith S Maroli
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln NE 68588-0304, USA; Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln NE 68588-0304, USA
| | - Aline De Lima Leite
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln NE 68588-0304, USA; Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln NE 68588-0304, USA
| | - Robert Powers
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln NE 68588-0304, USA; Nebraska Center for Integrated Biomolecular Communication, University of Nebraska-Lincoln, Lincoln NE 68588-0304, USA.
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40
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Cauchie G, Delfau-Bonnet G, Caulier G, Hantson AL, Renault JH, Gerbaux P. Comprehensive lipid profiling of Microchloropsis gaditana by liquid chromatography - (tandem) mass spectrometry: Bead milling and extraction solvent effects. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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41
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Kirschbaum C, Greis K, Polewski L, Gewinner S, Schöllkopf W, Meijer G, von Helden G, Pagel K. Unveiling Glycerolipid Fragmentation by Cryogenic Infrared Spectroscopy. J Am Chem Soc 2021; 143:14827-14834. [PMID: 34473927 PMCID: PMC8447261 DOI: 10.1021/jacs.1c06944] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
![]()
Mass spectrometry
is routinely employed for structure elucidation
of molecules. Structural information can be retrieved from intact
molecular ions by fragmentation; however, the interpretation of fragment
spectra is often hampered by poor understanding of the underlying
dissociation mechanisms. For example, neutral headgroup loss from
protonated glycerolipids has been postulated to proceed via an intramolecular
ring closure but the mechanism and resulting ring size have never
been experimentally confirmed. Here we use cryogenic gas-phase infrared
(IR) spectroscopy in combination with computational chemistry to unravel
the structures of fragment ions and thereby shed light on elusive
dissociation mechanisms. Using the example of glycerolipid fragmentation,
we study the formation of protonated five-membered dioxolane and six-membered
dioxane rings and show that dioxolane rings are predominant throughout
different glycerolipid classes and fragmentation channels. For comparison,
pure dioxolane and dioxane ions were generated from tailor-made dehydroxyl
derivatives inspired by natural 1,2- and 1,3-diacylglycerols and subsequently
interrogated using IR spectroscopy. Furthermore, the cyclic structure
of an intermediate fragment occurring in the phosphatidylcholine fragmentation
pathway was spectroscopically confirmed. Overall, the results contribute
substantially to the understanding of glycerolipid fragmentation and
showcase the value of vibrational ion spectroscopy to mechanistically
elucidate crucial fragmentation pathways in lipidomics.
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Affiliation(s)
- Carla Kirschbaum
- Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Germany.,Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195 Berlin, Germany
| | - Kim Greis
- Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Germany.,Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195 Berlin, Germany
| | - Lukasz Polewski
- Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Germany.,Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195 Berlin, Germany
| | - Sandy Gewinner
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195 Berlin, Germany
| | | | - Gerard Meijer
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195 Berlin, Germany
| | - Gert von Helden
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195 Berlin, Germany
| | - Kevin Pagel
- Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Germany.,Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195 Berlin, Germany
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42
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Tran A, Monreal IA, Moskovets E, Aguilar HC, Jones JW. Rapid Detection of Viral Envelope Lipids Using Lithium Adducts and AP-MALDI High-Resolution Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:2322-2333. [PMID: 33886294 PMCID: PMC8995026 DOI: 10.1021/jasms.1c00058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
There is an unmet need to develop analytical strategies that not only characterize the lipid composition of the viral envelope but also do so on a time scale that would allow for high-throughput analysis. With that in mind, we report the use of atmospheric pressure (AP) matrix-assisted laser desorption/ionization (MALDI) high-resolution mass spectrometry (HRMS) combined with lithium adduct consolidation to profile total lipid extracts rapidly and confidently from enveloped viruses. The use of AP-MALDI reduced the dependency of using a dedicated MALDI mass spectrometer and allowed for interfacing the MALDI source to a mass spectrometer with the desired features, which included high mass resolving power (>100000) and tandem mass spectrometry. AP-MALDI combined with an optimized MALDI matrix system, featuring 2',4',6'-trihydroxyacetophenone spiked with lithium salt, resulted in a robust and high-throughput lipid detection platform, specifically geared to sphingolipid detection. Application of the developed workflow included the structural characterization of prominent sphingolipids and detection of over 130 lipid structures from Influenza A virions. Overall, we demonstrate a high-throughput workflow for the detection and structural characterization of total lipid extracts from enveloped viruses using AP-MALDI HRMS and lithium adduct consolidation.
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Affiliation(s)
- Anh Tran
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, Maryland 21201, United States
| | - I Abrrey Monreal
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, United States
| | | | - Hector C Aguilar
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, United States
| | - Jace W Jones
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, Maryland 21201, United States
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Abstract
Lipids are natural substances found in all living organisms and involved in many biological functions. Imbalances in the lipid metabolism are linked to various diseases such as obesity, diabetes, or cardiovascular disease. Lipids comprise thousands of chemically distinct species making them a challenge to analyze because of their great structural diversity.Thanks to the technological improvements in the fields of chromatography, high-resolution mass spectrometry, and bioinformatics over the last years, it is now possible to perform global lipidomics analyses, allowing the concomitant detection, identification, and relative quantification of hundreds of lipid species. This review shall provide an insight into a general lipidomics workflow and its application in metabolic biomarker research.
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Coniglio D, Bianco M, Ventura G, Calvano CD, Losito I, Cataldi TRI. Lipidomics of the Edible Brown Alga Wakame ( Undaria pinnatifida) by Liquid Chromatography Coupled to Electrospray Ionization and Tandem Mass Spectrometry. Molecules 2021; 26:4480. [PMID: 34361633 PMCID: PMC8348742 DOI: 10.3390/molecules26154480] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 12/18/2022] Open
Abstract
The lipidome of a brown seaweed commonly known as wakame (Undaria pinnatifida), which is grown and consumed around the world, including Western countries, as a healthy nutraceutical food or supplement, was here extensively examined. The study was focused on the characterization of phospholipids (PL) and glycolipids (GL) by liquid chromatography (LC), either hydrophilic interaction LC (HILIC) or reversed-phase LC (RPLC), coupled to electrospray ionization (ESI) and mass spectrometry (MS), operated both in high and in low-resolution mode. Through the acquisition of single (MS) and tandem (MS/MS) mass spectra more than 200 PL and GL of U. pinnatifida extracts were characterized in terms of lipid class, fatty acyl (FA) chain composition (length and number of unsaturations), and regiochemistry, namely 16 SQDG, 6 SQMG, 12 DGDG, 5 DGMG, 29 PG, 8 LPG, 19 PI, 14 PA, 19 PE, 8 PE, 38 PC, and 27 LPC. The FA (C16:0) was the most abundant saturated acyl chain, whereas the monounsaturated C18:1 and the polyunsaturated C18:2 and C20:4 chains were the prevailing ones. Odd-numbered acyl chains, iJ., C15:0, C17:0, C19:0, and C19:1, were also recognized. While SQDG exhibited the longest and most unsaturated acyl chains, C18:1, C18:2, and C18:3, in the sn-1 position of glycerol, they were preferentially located in the sn-2 position in the case of PL. The developed analytical approach might pave the way to extend lipidomic investigations also for other edible marine algae, thus emphasizing their potential role as a source of bioactive lipids.
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Affiliation(s)
- Davide Coniglio
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy; (D.C.); (M.B.); (G.V.); (I.L.)
| | - Mariachiara Bianco
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy; (D.C.); (M.B.); (G.V.); (I.L.)
| | - Giovanni Ventura
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy; (D.C.); (M.B.); (G.V.); (I.L.)
| | - Cosima D. Calvano
- Centro Interdipartimentale SMART, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy
| | - Ilario Losito
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy; (D.C.); (M.B.); (G.V.); (I.L.)
- Centro Interdipartimentale SMART, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy
| | - Tommaso R. I. Cataldi
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy; (D.C.); (M.B.); (G.V.); (I.L.)
- Centro Interdipartimentale SMART, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy
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45
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Boumelhem BB, Pilgrim C, Zwicker VE, Kolanowski JL, Yeo JH, Jolliffe KA, New EJ, Day ML, Assinder SJ, Fraser ST. Intracellular flow cytometric lipid analysis - a multiparametric system to assess distinct lipid classes in live cells. J Cell Sci 2021; 135:269116. [PMID: 34114626 DOI: 10.1242/jcs.258322] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 05/28/2021] [Indexed: 11/20/2022] Open
Abstract
The lipid content of mammalian cells varies greatly between cell type. Current methods for analysing lipid components of cells are technically challenging and destructive. Here, we report a facile, inexpensive method to identify lipid content - intracellular flow cytometric lipid analysis (IFCLA). Distinct lipid classes can be distinguished by Nile Blue fluorescence, Nile Red fluorescence or violet autofluorescence. Nile Blue is fluorescent in the presence of unsaturated fatty acids with a carbon chain length greater than 16. Cis-configured fatty acids induce greater Nile Blue fluorescence than their trans-configured counterparts. In contrast, Nile Red exhibits greatest fluorescence in the presence of cholesterol, cholesteryl esters, some triglycerides and phospholipids. Multiparametric spanning-tree progression analysis for density-normalized events (SPADE) analysis of hepatic cellular lipid distribution, including vitamin A autofluorescence, is presented. This flow cytometric system allows for the rapid, inexpensive and non-destructive identification of lipid content, and highlights the differences in lipid biology between cell types by imaging and flow cytometry.
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Affiliation(s)
- Badwi B Boumelhem
- Discipline of Physiology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Chelsea Pilgrim
- Discipline of Physiology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Vincent E Zwicker
- School of Chemistry, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Jacek L Kolanowski
- School of Chemistry, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Jia Hao Yeo
- Discipline of Anatomy and Histology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Katrina A Jolliffe
- School of Chemistry, University of Sydney, Camperdown, NSW, 2050, Australia.,University of Sydney Nano Institute, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Elizabeth J New
- School of Chemistry, University of Sydney, Camperdown, NSW, 2050, Australia.,University of Sydney Nano Institute, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Margot L Day
- Discipline of Physiology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia
| | - Stephen J Assinder
- Discipline of Physiology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia.,University of Sydney Nano Institute, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Stuart T Fraser
- Discipline of Physiology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia.,Discipline of Anatomy and Histology, School of Medical Sciences, University of Sydney, Camperdown, NSW, 2050, Australia.,University of Sydney Nano Institute, University of Sydney, Camperdown, NSW, 2006, Australia.,School of Biomedical Engineering, University of Camperdown, NSW, 2006, Australia
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46
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Le Faouder P, Soullier J, Tremblay-Franco M, Tournadre A, Martin JF, Guitton Y, Carlé C, Caspar-Bauguil S, Denechaud PD, Bertrand-Michel J. Untargeted Lipidomic Profiling of Dry Blood Spots Using SFC-HRMS. Metabolites 2021; 11:metabo11050305. [PMID: 34064856 PMCID: PMC8151068 DOI: 10.3390/metabo11050305] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/30/2021] [Accepted: 05/05/2021] [Indexed: 12/18/2022] Open
Abstract
Lipids are essential cellular constituents that have many critical roles in physiological functions. They are notably involved in energy storage and cell signaling as second messengers, and they are major constituents of cell membranes, including lipid rafts. As a consequence, they are implicated in a large number of heterogeneous diseases, such as cancer, diabetes, neurological disorders, and inherited metabolic diseases. Due to the high structural diversity and complexity of lipid species, the presence of isomeric and isobaric lipid species, and their occurrence at a large concentration scale, a complete lipidomic profiling of biological matrices remains challenging, especially in clinical contexts. Using supercritical fluid chromatography coupled with high-resolution mass spectrometry, we have developed and validated an untargeted lipidomic approach to the profiling of plasma and blood. Moreover, we have tested the technique using the Dry Blood Spot (DBS) method and found that it allows for the easy collection of blood for analysis. To develop the method, we performed the optimization of the separation and detection of lipid species on pure standards, reference human plasma (SRM1950), whole blood, and DBS. These analyses allowed an in-house lipid data bank to be built. Using the MS-Dial software, we developed an automatic process for the relative quantification of around 500 lipids species belonging to the 6 main classes of lipids (including phospholipids, sphingolipids, free fatty acids, sterols, and fatty acyl-carnitines). Then, we compared the method using the published data for SRM 1950 and a mouse blood sample, along with another sample of the same blood collected using the DBS method. In this study, we provided a method for blood lipidomic profiling that can be used for the easy sampling of dry blood spots.
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Affiliation(s)
- Pauline Le Faouder
- MetaboHUB-MetaToul-Lipidomique, MetaboHUB-ANR-11-INBS-0010, Inserm U1297/Université Paul Sabatier Toulouse III, 31432 Toulouse, France; (P.L.F.); (J.S.); (A.T.)
| | - Julia Soullier
- MetaboHUB-MetaToul-Lipidomique, MetaboHUB-ANR-11-INBS-0010, Inserm U1297/Université Paul Sabatier Toulouse III, 31432 Toulouse, France; (P.L.F.); (J.S.); (A.T.)
| | - Marie Tremblay-Franco
- MetaboHUB-MetaToul-Axiom, MetaboHUB-ANR-11-INBS-0010, INRAE Toxalim, Université Paul Sabtier, 31027 Toulouse, France; (M.T.-F.); (J.-F.M.)
| | - Anthony Tournadre
- MetaboHUB-MetaToul-Lipidomique, MetaboHUB-ANR-11-INBS-0010, Inserm U1297/Université Paul Sabatier Toulouse III, 31432 Toulouse, France; (P.L.F.); (J.S.); (A.T.)
| | - Jean-François Martin
- MetaboHUB-MetaToul-Axiom, MetaboHUB-ANR-11-INBS-0010, INRAE Toxalim, Université Paul Sabtier, 31027 Toulouse, France; (M.T.-F.); (J.-F.M.)
| | - Yann Guitton
- MELISA Core Facility, Laboratoire d’Etude des Résidus et Contaminants dans les Aliments (LABERCA), Oniris, INRΑE, 44307 Nantes, France;
| | - Caroline Carlé
- Laboratoire de Biochimie, Hôpital Purpan, CHU Toulouse, 31059 Toulouse, France;
| | - Sylvie Caspar-Bauguil
- INSERM, UMR1297, Institute of Metabolic and Cardiovascular Diseases, University Paul Sabatier, 31432 Toulouse, France; (S.C.-B.); (P.-D.D.)
| | - Pierre-Damien Denechaud
- INSERM, UMR1297, Institute of Metabolic and Cardiovascular Diseases, University Paul Sabatier, 31432 Toulouse, France; (S.C.-B.); (P.-D.D.)
| | - Justine Bertrand-Michel
- MetaboHUB-MetaToul-Lipidomique, MetaboHUB-ANR-11-INBS-0010, Inserm U1297/Université Paul Sabatier Toulouse III, 31432 Toulouse, France; (P.L.F.); (J.S.); (A.T.)
- Correspondence: ; Tel.: +33-671681650
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47
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Hannich JT, Loizides‐Mangold U, Sinturel F, Harayama T, Vandereycken B, Saini C, Gosselin P, Brulhart‐Meynet M, Robert M, Chanon S, Durand C, Paz Montoya J, David FPA, Guessous I, Pataky Z, Golay A, Jornayvaz FR, Philippe J, Dermitzakis ET, Brown SA, Lefai E, Riezman H, Dibner C. Ether lipids, sphingolipids and toxic 1-deoxyceramides as hallmarks for lean and obese type 2 diabetic patients. Acta Physiol (Oxf) 2021; 232:e13610. [PMID: 33351229 DOI: 10.1111/apha.13610] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 12/08/2020] [Accepted: 12/21/2020] [Indexed: 12/12/2022]
Abstract
AIM The worldwide increase in obesity and type 2 diabetes (T2D) represents a major health challenge. Chronically altered lipids induced by obesity further promote the development of T2D, and the accumulation of toxic lipid metabolites in serum and peripheral organs may contribute to the diabetic phenotype. METHODS To better understand the complex metabolic pattern of lean and obese T2D and non-T2D individuals, we analysed the lipid profile of human serum, skeletal muscle and visceral adipose tissue of two cohorts by systematic mass spectrometry-based lipid analysis. RESULTS Lipid homeostasis was strongly altered in a disease- and tissue-specific manner, allowing us to define T2D signatures associated with obesity from those that were obesity independent. Lipid changes encompassed lyso-, diacyl- and ether-phospholipids. Moreover, strong changes in sphingolipids included cytotoxic 1-deoxyceramide accumulation in a disease-specific manner in serum and visceral adipose tissue. The high amounts of non-canonical 1-deoxyceramide present in human adipose tissue most likely come from cell-autonomous synthesis because 1-deoxyceramide production increased upon differentiation to adipocytes in mouse cell culture experiments. CONCLUSION Taken together, the observed lipidome changes in obesity and T2D will facilitate the identification of T2D patient subgroups and represent an important step towards personalized medicine in diabetes.
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Affiliation(s)
- J. Thomas Hannich
- Department of Biochemistry Faculty of Science NCCR Chemical Biology University of Geneva Geneva Switzerland
| | - Ursula Loizides‐Mangold
- Division of Endocrinology Diabetes, Nutrition and Patient Education Department of Medicine University Hospital of Geneva Geneva Switzerland
- Department of Cell Physiology and Metabolism Faculty of Medicine University of Geneva Geneva Switzerland
- Diabetes Center Faculty of Medicine University of Geneva Geneva Switzerland
- Institute of Genetics and Genomics in Geneva (iGE3) University of Geneva Geneva Switzerland
| | - Flore Sinturel
- Division of Endocrinology Diabetes, Nutrition and Patient Education Department of Medicine University Hospital of Geneva Geneva Switzerland
- Department of Cell Physiology and Metabolism Faculty of Medicine University of Geneva Geneva Switzerland
- Diabetes Center Faculty of Medicine University of Geneva Geneva Switzerland
- Institute of Genetics and Genomics in Geneva (iGE3) University of Geneva Geneva Switzerland
| | - Takeshi Harayama
- Department of Biochemistry Faculty of Science NCCR Chemical Biology University of Geneva Geneva Switzerland
| | | | - Camille Saini
- Department and Division of Primary Care Medicine University Hospital of Geneva Geneva Switzerland
| | - Pauline Gosselin
- Division of Endocrinology Diabetes, Nutrition and Patient Education Department of Medicine University Hospital of Geneva Geneva Switzerland
- Department of Cell Physiology and Metabolism Faculty of Medicine University of Geneva Geneva Switzerland
- Diabetes Center Faculty of Medicine University of Geneva Geneva Switzerland
- Institute of Genetics and Genomics in Geneva (iGE3) University of Geneva Geneva Switzerland
- Department and Division of Primary Care Medicine University Hospital of Geneva Geneva Switzerland
| | - Marie‐Claude Brulhart‐Meynet
- Division of Endocrinology Diabetes, Nutrition and Patient Education Department of Medicine University Hospital of Geneva Geneva Switzerland
| | - Maud Robert
- Department of Digestive and Bariatric Surgery Edouard Herriot University HospitalUniversity Lyon France
| | - Stephanie Chanon
- CarMeN Laboratory INSERM U1060 INRA 1397 University Lyon 1 Oullins France
| | - Christine Durand
- CarMeN Laboratory INSERM U1060 INRA 1397 University Lyon 1 Oullins France
| | - Jonathan Paz Montoya
- Proteomics Core Facility Ecole Polytechnique Fédérale de Lausanne Lausanne Switzerland
| | - Fabrice P. A. David
- Gene Expression Core Facility Ecole Polytechnique Fédérale de Lausanne Lausanne Switzerland
| | - Idris Guessous
- Department and Division of Primary Care Medicine University Hospital of Geneva Geneva Switzerland
| | - Zoltan Pataky
- Division of Endocrinology Diabetes, Nutrition and Patient Education Department of Medicine WHO Collaborating Centre University Hospital of GenevaUniversity of Geneva Geneva Switzerland
| | - Alain Golay
- Division of Endocrinology Diabetes, Nutrition and Patient Education Department of Medicine WHO Collaborating Centre University Hospital of GenevaUniversity of Geneva Geneva Switzerland
| | - François R. Jornayvaz
- Division of Endocrinology Diabetes, Nutrition and Patient Education Department of Medicine University Hospital of Geneva Geneva Switzerland
- Diabetes Center Faculty of Medicine University of Geneva Geneva Switzerland
| | - Jacques Philippe
- Division of Endocrinology Diabetes, Nutrition and Patient Education Department of Medicine University Hospital of Geneva Geneva Switzerland
- Diabetes Center Faculty of Medicine University of Geneva Geneva Switzerland
| | - Emmanouil T. Dermitzakis
- Diabetes Center Faculty of Medicine University of Geneva Geneva Switzerland
- Institute of Genetics and Genomics in Geneva (iGE3) University of Geneva Geneva Switzerland
- Department of Genetic Medicine and Development Faculty of Medicine University of Geneva Geneva Switzerland
| | - Steven A. Brown
- Institute of Pharmacology and Toxicology University of Zurich Zurich Switzerland
| | - Etienne Lefai
- INRA Unité de Nutrition Humaine Université Clermont Auvergne Paris France
| | - Howard Riezman
- Department of Biochemistry Faculty of Science NCCR Chemical Biology University of Geneva Geneva Switzerland
| | - Charna Dibner
- Division of Endocrinology Diabetes, Nutrition and Patient Education Department of Medicine University Hospital of Geneva Geneva Switzerland
- Department of Cell Physiology and Metabolism Faculty of Medicine University of Geneva Geneva Switzerland
- Diabetes Center Faculty of Medicine University of Geneva Geneva Switzerland
- Institute of Genetics and Genomics in Geneva (iGE3) University of Geneva Geneva Switzerland
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48
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Lee-Okada HC, Hama K, Yokoyama K, Yokomizo T. Development of a liquid chromatography-electrospray ionization tandem mass spectrometric method for the simultaneous analysis of free fatty acids. J Biochem 2021; 170:389-397. [PMID: 34009367 DOI: 10.1093/jb/mvab054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 04/27/2021] [Indexed: 12/23/2022] Open
Abstract
Fatty acids (FAs) play important roles in several physiological and pathophysiological processes, functioning as both non-esterified free FAs (FFAs) and components of other lipid classes. Although many lipid classes are readily measured using liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS), the measurement of FFAs by this method is not straightforward because of inconsistent fragmentation behaviors. In this study, we describe a strategy to measure FFAs using conventional reverse-phase LC-ESI-MS/MS, without derivatization. The strategy combines three key methods: 1) an isocratic LC separation with a high organic solvent ratio, 2) post-column base addition, and 3) pseudo-multiple reaction monitoring. The method facilitates the measurement of ultra-long-chain FAs, the accumulation of which is a common biochemical abnormality in peroxisomal disorders. This study delivers a broad strategy that measures a wide spectrum of FFA species in complex biological samples.
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Affiliation(s)
- Hyeon-Cheol Lee-Okada
- Department of Biochemistry, Graduate School of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Kotaro Hama
- Faculty of Pharma-Science, Teikyo University, Tokyo 173-8605, Japan
| | - Kazuaki Yokoyama
- Faculty of Pharma-Science, Teikyo University, Tokyo 173-8605, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Graduate School of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
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49
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Bonney JR, Prentice BM. Perspective on Emerging Mass Spectrometry Technologies for Comprehensive Lipid Structural Elucidation. Anal Chem 2021; 93:6311-6322. [PMID: 33856206 PMCID: PMC8177724 DOI: 10.1021/acs.analchem.1c00061] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Lipids and metabolites are of interest in many clinical and research settings because it is the metabolome that is increasingly recognized as a more dynamic and sensitive molecular measure of phenotype. The enormous diversity of lipid structures and the importance of biological structure-function relationships in a wide variety of applications makes accurate identification a challenging yet crucial area of research in the lipid community. Indeed, subtle differences in the chemical structures of lipids can have important implications in cellular metabolism and many disease pathologies. The speed, sensitivity, and molecular specificity afforded by modern mass spectrometry has led to its widespread adoption in the field of lipidomics on many different instrument platforms and experimental workflows. However, unambiguous and complete structural identification of lipids by mass spectrometry remains challenging. Increasingly sophisticated tandem mass spectrometry (MS/MS) approaches are now being developed and seamlessly integrated into lipidomics workflows to meet this challenge. These approaches generally either (i) alter the type of ion that is interrogated or (ii) alter the dissociation method in order to improve the structural information obtained from the MS/MS experiment. In this Perspective, we highlight recent advances in both ion type alteration and ion dissociation methods for lipid identification by mass spectrometry. This discussion is aimed to engage investigators involved in fundamental ion chemistry and technology developments as well as practitioners of lipidomics and its many applications. The rapid rate of technology development in recent years has accelerated and strengthened the ties between these two research communities. We identify the common characteristics and practical figures of merit of these emerging approaches and discuss ways these may catalyze future directions of lipid structural elucidation research.
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Affiliation(s)
- Julia R Bonney
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Boone M Prentice
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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50
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Bouza M, Li Y, Wang AC, Wang ZL, Fernández FM. Triboelectric Nanogenerator Ion Mobility-Mass Spectrometry for In-Depth Lipid Annotation. Anal Chem 2021; 93:5468-5475. [PMID: 33720699 PMCID: PMC8292975 DOI: 10.1021/acs.analchem.0c05145] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Lipids play a critical role in cell membrane integrity, signaling, and energy storage. However, in-depth structural characterization of lipids is still challenging and not routinely possible in lipidomics experiments. Techniques such as collision-induced dissociation (CID) tandem mass spectrometry (MS/MS), ion mobility (IM) spectrometry, and ultrahigh-performance liquid chromatography are not yet capable of fully characterizing double-bond and sn-chain position of lipids in a high-throughput manner. Herein, we report on the ability to structurally characterize lipids using large-area triboelectric nanogenerators (TENG) coupled with time-aligned parallel (TAP) fragmentation IM-MS analysis. Gas-phase lipid epoxidation during TENG ionization, coupled to mobility-resolved MS3 via TAP IM-MS, enabled the acquisition of detailed information on the presence and position of lipid C═C double bonds, the fatty acyl sn-chain position and composition, and the cis/trans geometrical C═C isomerism. The proposed methodology proved useful for the shotgun lipidomics analysis of lipid extracts from biological samples, enabling the detailed annotation of numerous lipid isobars.
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Affiliation(s)
- Marcos Bouza
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- NSF/NASA Center for Chemical Evolution, Atlanta, Georgia 30332, United States
| | - Yafeng Li
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Aurelia C Wang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Zhong Lin Wang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Facundo M Fernández
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- NSF/NASA Center for Chemical Evolution, Atlanta, Georgia 30332, United States
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