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Fu X, Knappe C, Rohlfing AK, Gawaz MP, Lämmerhofer M. Non-enantioselective, enantioselective, and two-dimensional liquid chromatography coupled with tandem mass spectrometry for the study of stereochemical disposition of oxylipins in cGMP-regulated hemin-treated platelets. J Pharm Biomed Anal 2024; 248:116328. [PMID: 38943819 DOI: 10.1016/j.jpba.2024.116328] [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: 05/28/2024] [Revised: 06/22/2024] [Accepted: 06/24/2024] [Indexed: 07/01/2024]
Abstract
Oxylipins are important low abundant signaling molecules in living organisms. In platelets they play a primary role in platelet activation and aggregation in the course of thrombotic events. In vivo, they are enzymatically synthesized by cyclooxygenases, lipoxygenases, or cytochrome P450 isoenzmes, resulting in diverse polyunsaturated fatty acid (FA) metabolites including hydroxy-, epoxy-, oxo-FAs, and endoperoxides with pro-thrombotic or anti-thrombotic effects. In a recent study, it was reported that hemin induces platelet death which was accompanied by enhanced reactive oxygen species (ROS) production (measured by flow cytometry) and lipid peroxidation (as determined by proxy using flow cytometry with BODIPY-C11 as sensor). Lipidomic studies further indicated significant changes of the platelet lipidome upon ex vivo hemin treatment, amongst others oxylipins were increased. The effect could be (at least partly) reversed by riociguat/diethylamine NONOate diethylammonium salt (DEA/NO) which modulates the soluble guanylate cyclase(sGC)-cGMP-cGMP-dependent protein kinase I(cGKI) signaling axis. In the original work, oxylipins were measured by a non-enantioselective UHPLC-tandem-MS assay which may not give the full picture whether oxylipin elevation is due to ROS or by enzymatic processes. We present here the study of the stereochemical disposition of hemin-induced platelet lipidome alterations using Chiralpak IA-U column with amylose tris(3,5-dimethylphenylcarbamate) chiral selector immobilized on 1.6 µm silica particles. It was found that the major platelet oxylipins 12-HETE, 12-HEPE and 14-HDoHE (from 12-LOX) and 12-HHT (from COX-1) were present in S-configuration indicating their enzymatic formation. On the other hand, both R and S enantiomers of 9- and 13-HODE, 11- and 15-HETE were detected, possibly due to enzyme promiscuity rather than non-specific oxidation (by ROS or autoxidation), as confirmed by multi-loop based two-dimensional LC-MS using selective comprehensive mode with achiral RPLC in the 1st dimension and chiral LC in the 2nd using a multiple heart-cutting interface. For 12-HETrE, a peak at the retention time of the R-enantiomer was ruled out as isobaric interference by 2D-LC-MS. In particular, arachidonic acid derivates 12(S)-HHT, 11(R)-HETE and 15(S)-HETE were found to be sensitive to hemin and cGMP modulation.
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Affiliation(s)
- Xiaoqing Fu
- University of Tübingen, Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, Auf der Morgenstelle 8, Tübingen 72076, Germany.
| | - Cornelius Knappe
- University of Tübingen, Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, Auf der Morgenstelle 8, Tübingen 72076, Germany
| | - Anne-Katrin Rohlfing
- Department of Cardiology and Angiology, University Hospital Tübingen, Otfried-Müller-Strasse 10, Tübingen 72076, Germany
| | - Meinrad P Gawaz
- Department of Cardiology and Angiology, University Hospital Tübingen, Otfried-Müller-Strasse 10, Tübingen 72076, Germany
| | - Michael Lämmerhofer
- University of Tübingen, Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, Auf der Morgenstelle 8, Tübingen 72076, Germany.
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Hu X, Liu L, Peng M, Zheng D, Xia H, Zhou Y, Peng L, Peng X. One-Pot Preparation of Mixed-Mode Reversed-Phase Anion-Exchange Silica Sorbent and its Application in the Detection of Cyclopiazonic Acid in Feeds and Agricultural Products. Foods 2024; 13:1499. [PMID: 38790799 PMCID: PMC11119939 DOI: 10.3390/foods13101499] [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: 04/06/2024] [Revised: 05/04/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
A novel co-bonded octyl and pyridine silica (OPS) sorbent was prepared and applied for the solid phase extraction (SPE) of cyclopiazonic acid (CPA, a type of mycotoxin) in feed and agricultural products for the first time. A simple mixed-ligand one-pot reaction strategy was employed for OPS sorbent preparation. Nitrogen adsorption-desorption measurements, elemental analysis (EI), thermal gravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FT-IR) analysis demonstrated the successful immobilization of octyl and quaternary ammonium groups onto the surface of silica gel. The large specific surface area, high-density functional groups, and mixed-mode anion-exchange characteristics of these silica particles made them the ideal material for the efficient extraction of CPA. Additionally, the OPS sorbents displayed excellent batch-to-batch reproducibility, satisfactory reusability, and low cost. The SPE parameters were optimized to explore the ionic and hydrophobic interactions between CPA and the functional groups, and the ultra-high performance liquid chromatography coupled with triple-quadrupole tandem mass spectrometry (UPLC-MS/MS) parameters were optimized to obtain a desirable extraction efficiency and high sensitivity to CPA. Meanwhile, the OPS sorbent presented a satisfactory extraction selectivity and low matrix effect. Under the optimized conditions, our developed CPA detection method was used to determine CPA level in rice, wheat flour, corn flour, peanut, and feed samples, exhibiting a lower detection limit, better linearity, higher sensitivity, and satisfactory extraction recovery rate than previously reported methods. Therefore, our method can be preferentially used as a method for the detection of CPA in agricultural products and feeds.
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Affiliation(s)
- Xuan Hu
- Institute of Agricultural Quality Standards and Testing Technology Research, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.H.); (L.L.); (M.P.); (D.Z.); (H.X.); (Y.Z.)
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-Products, Wuhan 430064, China
| | - Li Liu
- Institute of Agricultural Quality Standards and Testing Technology Research, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.H.); (L.L.); (M.P.); (D.Z.); (H.X.); (Y.Z.)
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-Products, Wuhan 430064, China
| | - Maomin Peng
- Institute of Agricultural Quality Standards and Testing Technology Research, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.H.); (L.L.); (M.P.); (D.Z.); (H.X.); (Y.Z.)
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-Products, Wuhan 430064, China
| | - Dan Zheng
- Institute of Agricultural Quality Standards and Testing Technology Research, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.H.); (L.L.); (M.P.); (D.Z.); (H.X.); (Y.Z.)
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-Products, Wuhan 430064, China
| | - Hong Xia
- Institute of Agricultural Quality Standards and Testing Technology Research, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.H.); (L.L.); (M.P.); (D.Z.); (H.X.); (Y.Z.)
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-Products, Wuhan 430064, China
| | - Youxiang Zhou
- Institute of Agricultural Quality Standards and Testing Technology Research, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.H.); (L.L.); (M.P.); (D.Z.); (H.X.); (Y.Z.)
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-Products, Wuhan 430064, China
| | - Lijun Peng
- Institute of Agricultural Quality Standards and Testing Technology Research, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (X.H.); (L.L.); (M.P.); (D.Z.); (H.X.); (Y.Z.)
| | - Xitian Peng
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-Products, Wuhan 430064, China
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Yang L, Choi J, Maier CS, Stevens JF. Profiling of Oxylipins as Markers of Oxidative Stress in Biological Samples. Curr Protoc 2024; 4:e992. [PMID: 38439570 DOI: 10.1002/cpz1.992] [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: 03/06/2024]
Abstract
Oxylipins are oxidized metabolites of polyunsaturated fatty acids (PUFAs). They represent a class of risk markers and/or therapeutic targets for diseases associated with inflammation, including cardiovascular disease and brain disorders. Because the biological activities of free PUFAs and oxylipins depend on their chemical structures and concentrations, monitoring PUFAs and oxylipin levels in biological systems is critical for understanding their roles in health and disease. Traditionally, accurate quantification of free PUFAs and oxylipins in biological samples was performed separately, as PUFAs are often 1000-fold more abundant than the derived oxidized fatty acids (oxylipins). This article describes a liquid chromatography multiple reaction monitoring tandem mass spectrometry method for the quantitative analysis of five free PUFAs and 88 oxylipins in various biological fluids, including plasma, platelet supernatants, and tissues. The same approach can also be used in conjunction with an alkaline hydrolysis step to quantify total oxylipins in fish oils. We observed that in some samples, linoleic acid levels in plasma and eicosapentaenoic acid and arachidonic acid levels in brain tissue were above the upper limit of quantification. To address this issue, we developed a data analysis method to obtain PUFA and oxylipin concentrations in these samples without additional sample preparation, thus significantly saving time and labor. © 2024 Wiley Periodicals LLC. Basic Protocol: Quantification of polyunsaturated fatty acids (PUFAs) and oxylipins using liquid chromatography multiple reaction monitoring tandem mass spectrometry Support Protocol 1: Preparation of internal standard mixed working solution Support Protocol 2: Preparation of standard mixed stock solution Support Protocol 3: Preparation of standard mixed working solution Alternate Protocol 1: Extraction and quantitation of free PUFAs and oxylipins from mouse brain tissue Alternate Protocol 2: Extraction and quantitation of total PUFAs and oxylipins from fish oil.
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Affiliation(s)
- Liping Yang
- Department of Chemistry, Oregon State University, Corvallis, Oregon
| | - Jaewoo Choi
- Department of Chemistry, Oregon State University, Corvallis, Oregon
| | - Claudia S Maier
- Department of Chemistry, Oregon State University, Corvallis, Oregon
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon
| | - Jan F Stevens
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, Oregon
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Rohlfing AK, Kremser M, Schaale D, Dicenta-Baunach V, Laspa Z, Fu X, Zizmare L, Sigle M, Harm T, Münzer P, Pelzer A, Borst O, Trautwein C, Feil R, Müller K, Castor T, Lämmerhofer M, Gawaz MP. cGMP modulates hemin-mediated platelet death. Thromb Res 2024; 234:63-74. [PMID: 38171216 DOI: 10.1016/j.thromres.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 12/08/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND AND AIMS Hemolysis is a known risk factor for thrombosis resulting in critical limb ischemia and microcirculatory disturbance and organ failure. Intravasal hemolysis may lead to life-threatening complications due to uncontrolled thrombo-inflammation. Until now, conventional antithrombotic therapies failed to control development and progression of these thrombotic events. Thus, the pathophysiology of these thrombotic events needs to be investigated to unravel underlying pathways and thereby identify targets for novel treatment strategies. METHODS Here we used classical experimental set-ups as well as high-end flow cytometry, metabolomics and lipidomic analysis to in-depth analyze the effects of hemin on platelet physiology and morphology. RESULTS Hemin does strongly and swiftly induce platelet activation and this process is modulated by the sGC-cGMP-cGKI signaling axis. cGMP modulation also reduced the pro-aggregatory potential of plasma derived from patients with hemolysis. Furthermore, hemin-induced platelet death evokes distinct platelet subpopulations. Typical cell death markers, such as ROS, were induced by hemin-stimulation and the platelet lipidome was specifically altered by high hemin concentration. Specifically, arachidonic acid derivates, such as PGE2, TXB2 or 12-HHT, were significantly increased. Balancing the cGMP levels by modulation of the sGC-cGMP-cGKI axis diminished the ferroptotic effect of hemin. CONCLUSION We found that cGMP modulates hemin-induced platelet activation and thrombus formation in vitro and cGMP effects hemin-mediated platelet death and changes in the platelet lipidome. Thus, it is tempting to speculate that modulating platelet cGMP levels may be a novel strategy to control thrombosis and critical limb ischemia in patients with hemolytic crisis.
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Affiliation(s)
- Anne-Katrin Rohlfing
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
| | - Marcel Kremser
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany
| | - David Schaale
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
| | - Valerie Dicenta-Baunach
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
| | - Zoi Laspa
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
| | - Xiaoqing Fu
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical and Medicinal Chemistry, University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany.
| | - Laimdota Zizmare
- Werner Siemens Imaging Center, Department for Preclinical Imaging and Radiopharmacy, University Tübingen, Röntgenweg 13, 72076 Tübingen, Germany.
| | - Manuel Sigle
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
| | - Tobias Harm
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
| | - Patrick Münzer
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany; DFG Heisenberg Group Cardiovascular Thrombo-inflammation and Translational Thrombocardiology, University of Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
| | - Andreas Pelzer
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
| | - Oliver Borst
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany; DFG Heisenberg Group Cardiovascular Thrombo-inflammation and Translational Thrombocardiology, University of Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
| | - Christoph Trautwein
- Werner Siemens Imaging Center, Department for Preclinical Imaging and Radiopharmacy, University Tübingen, Röntgenweg 13, 72076 Tübingen, Germany.
| | - Robert Feil
- Interfaculty Institute of Biochemistry, University Tübingen, Auf der Morgenstelle 34, 72076 Tübingen, Germany.
| | - Karin Müller
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
| | - Tatsiana Castor
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical and Medicinal Chemistry, University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany.
| | - Meinrad P Gawaz
- Department of Cardiology and Angiology, University Hospital Tübingen, University Tübingen, Otfried-Müller-Straße 10, 72076 Tübingen, Germany.
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Neef SK, Hofmann U, Mürdter TE, Schwab M, Haag M. Performance comparison of narrow-bore and capillary liquid-chromatography for non-targeted metabolomics profiling by HILIC-QTOF-MS. Talanta 2023; 260:124578. [PMID: 37119797 DOI: 10.1016/j.talanta.2023.124578] [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: 11/25/2022] [Revised: 03/13/2023] [Accepted: 04/19/2023] [Indexed: 05/01/2023]
Abstract
Clinical metabolomics studies often have to cope with limited sample amounts, thus miniaturized liquid chromatography (LC) systems are a promising alternative. Their applicability has already been demonstrated in various fields, including a few metabolomics studies that mainly used reversed-phase chromatography. However, hydrophilic interaction chromatography (HILIC), which is widely used in metabolomics due to its particular suitability for the analysis of polar molecules, has rarely been tested for miniaturized LC-MS analysis of small molecules. In the present work, the suitability of a capillary HILIC (CapHILIC)-QTOF-MS system for non-targeted metabolomics was evaluated based on extracts of porcine formalin-fixed, paraffin-embedded (FFPE) tissue samples. The performance was assessed with respect to the number and retention time span of metabolic features as well as the analytical repeatability, the signal-to-noise ratio and the signal intensity of 16 annotated metabolites from different compound classes. The results were compared with a well established narrow-bore HILIC-QTOF-MS system. Both platforms have detected a similar number of features and performed excellent with respect to retention time stability (median RT span <0.05 min) and analytical repeatability (>75% of features with CV < 20%). The signal areas of all metabolites assessed were increased up to 18-fold by the use of CapHILIC, although the signal-to-noise ratio was only improved for 50% of the metabolites. An even better reproducibility (median CV = 5.2%) and up to 80-fold increase in signal intensity were observed after optimization of CapHILIC conditions for analysis of bile acid standard solutions. Even though the observed improvement for specific bile acids (e.g. taurocholic acid) in biological matrix needs to be evaluated, the platform comparison indicates, that the tested CapHILIC system is particularly suitable for analyses of a less broad metabolite spectrum, and specifically optimized chromatography.
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Affiliation(s)
- Sylvia K Neef
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, Stuttgart, Germany and University of Tuebingen, Tuebingen, Germany
| | - Ute Hofmann
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, Stuttgart, Germany and University of Tuebingen, Tuebingen, Germany
| | - Thomas E Mürdter
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, Stuttgart, Germany and University of Tuebingen, Tuebingen, Germany
| | - Matthias Schwab
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, Stuttgart, Germany and University of Tuebingen, Tuebingen, Germany; Departments of Clinical Pharmacology, and of Pharmacy and Biochemistry, University of Tuebingen, Tuebingen, Germany; Cluster of Excellence iFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", University of Tuebingen, Germany
| | - Mathias Haag
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, Stuttgart, Germany and University of Tuebingen, Tuebingen, Germany.
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Fink A, Rohlfing AK, Dicenta V, Schaale D, Kremser M, Laspa Z, Sigle M, Fu X, Pelzer A, Fischer M, Münzer P, Castor T, Müller KAL, Borst O, Lämmerhofer M, Gawaz MP. The Subtilisin-Like Protease Furin Regulates Hemin-Dependent Ectodomain Shedding of Glycoprotein VI. Thromb Haemost 2023. [PMID: 37037200 DOI: 10.1055/s-0043-1768057] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
INTRODUCTION Hemolysis results in release of free hemoglobin and hemin liberation from erythrocytes. Hemin has been described to induce platelet activation and to trigger thrombosis. METHODS We evaluated the effect of hemin on platelet function and surface expression of the platelet collagen receptor glycoprotein VI (GPVI). Isolated platelets were stimulated with increasing concentrations of hemin. RESULTS We found that hemin strongly enhanced platelet activation, aggregation, and aggregate formation on immobilized collagen under flow. In contrast, we found that surface expression of GPVI was significantly reduced upon hemin stimulation with high hemin concentrations indicating that hemin-induced loss of surface GPVI does not hinder platelet aggregation. Loss of hemin-induced surface expression of GPVI was caused by shedding of the ectodomain of GPVI as verified by immunoblotting and is independent of the GPVI or CLEC-2 mediated ITAM (immunoreceptor-tyrosine-based-activation-motif) signaling pathway as inhibitor studies revealed. Hemin-induced GPVI shedding was independent of metalloproteinases such as ADAM10 or ADAM17, which were previously described to regulate GPVI degradation. Similarly, concentration-dependent shedding of CD62P was also induced by hemin. Unexpectedly, we found that the subtilisin-like proprotein convertase furin controls hemin-dependent GPVI shedding as shown by inhibitor studies using the specific furin inhibitors SSM3 and Hexa-D-arginine. In the presence of SSM3 and Hexa-D-arginine, hemin-associated GPVI degradation was substantially reduced. Further, SSM3 inhibited hemin-induced but not CRP-XL-induced platelet aggregation and thrombus formation, indicating that furin controls specifically hemin-associated platelet functions. CONCLUSION In summary, we describe a novel mechanism of hemin-dependent GPVI shedding and platelet function mediated by furin.
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Affiliation(s)
- Annalena Fink
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Anne-Katrin Rohlfing
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Valerie Dicenta
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - David Schaale
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Marcel Kremser
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Zoi Laspa
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Manuel Sigle
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Xiaoqing Fu
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmaceutical Sciences, University of Tübingen, Tübingen, Germany
| | - Andreas Pelzer
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Melina Fischer
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Patrick Münzer
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Tatsiana Castor
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Karin Anne Lydia Müller
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Oliver Borst
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Michael Lämmerhofer
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmaceutical Sciences, University of Tübingen, Tübingen, Germany
| | - Meinrad Paul Gawaz
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
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Fitz V, El Abiead Y, Berger D, Koellensperger G. Systematic Investigation of LC Miniaturization to Increase Sensitivity in Wide-Target LC-MS-Based Trace Bioanalysis of Small Molecules. Front Mol Biosci 2022; 9:857505. [PMID: 35923463 PMCID: PMC9340153 DOI: 10.3389/fmolb.2022.857505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 06/06/2022] [Indexed: 01/23/2023] Open
Abstract
Covering a wide spectrum of molecules is essential for global metabolome assessment. While metabolomics assays are most frequently carried out in microbore LC-MS analysis, reducing the size of the analytical platform has proven its ability to boost sensitivity for specific -omics applications. In this study, we elaborate the impact of LC miniaturization on exploratory small-molecule LC-MS analysis, focusing on chromatographic properties with critical impact on peak picking and statistical analysis. We have assessed a panel of small molecules comprising endogenous metabolites and environmental contaminants covering three flow regimes—analytical, micro-, and nano-flow. Miniaturization to the micro-flow regime yields moderately increased sensitivity as compared to the nano setup, where median sensitivity gains around 80-fold are observed in protein-precipitated blood plasma extract. This gain resulting in higher coverage at low µg/L concentrations is compound dependent. At the same time, the nano-LC-high-resolution mass spectrometry (HRMS) approach reduces the investigated chemical space as a consequence of the trap-and-elute nano-LC platform. Finally, while all three setups show excellent retention time stabilities, rapid gradients jeopardize the peak area repeatability of the nano-LC setup. Micro-LC offers the best compromise between improving signal intensity and metabolome coverage, despite the fact that only incremental gains can be achieved. Hence, we recommend using micro-LC for wide-target small-molecule trace bioanalysis and global metabolomics of abundant samples.
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Affiliation(s)
- Veronika Fitz
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Vienna Doctoral School in Chemistry (DoSChem), University of Vienna, Vienna, Austria
| | - Yasin El Abiead
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
| | - Daniel Berger
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
| | - Gunda Koellensperger
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Vienna Metabolomics Center (VIME), University of Vienna, Vienna, Austria
- Chemistry Meets Biology, University of Vienna, Vienna, Austria
- *Correspondence: Gunda Koellensperger,
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8
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Comprehensive profiling of conjugated fatty acid isomers and their lipid oxidation products by two-dimensional chiral RP×RP liquid chromatography hyphenated to UV- and SWATH-MS-detection. Anal Chim Acta 2022; 1202:339667. [DOI: 10.1016/j.aca.2022.339667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/25/2022] [Accepted: 02/27/2022] [Indexed: 11/23/2022]
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9
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Du Y, Wu Y. Repairing Effect of Platelet Enriched Plasma on Tendon Healing. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.2862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To explore the repairing effect of platelet-rich plasma (PRP) on tendon (AT) healing, and provide evidence for PRP therapy to treat tendon-related diseases, 32 New Zealand white rabbits were selected to construct tendinopathy animal model. Leukocyte-rich Platelet-Rich Fibrin (Lr-PRP)
and Leukocyte-poor Platelet-Rich Fibrin (Lp-PRP) were prepared, whose biological effects on tendon stem cells (TSCs) were explored. Rabbits were divided into control group, low, medium, and high dose groups regrading concentration of Lp-PRP. The number of fibroblasts, collagen fiber content,
tubuloglomerular feedback-β1 (TGF-β1) expression, and biomechanical properties were compared at 15 and 30 days after operation. The results showed that Collagen-III (CoI-III) protein expression levels, interleukin-β (IL-β), and interleukin-6
(IL-6) levels in the Lp-PRP group were significantly higher than Lr-PRP group (P < 0.05). Fibroblasts and collagen fibers in group II and III were significantly higher versus group C 15 and 30 days after operation (P < 0.05). Fibroblasts and of collagen fibers in group
III were significantly higher versus group II (P < 0.05). Expression of TGF-β1 in groups II and III was significantly higher than that in group C 15 days after operation (P < 0.05). Tensile load of AT repair site in group III was significantly higher than group
C 30 days after operation (P < 0.05). Platelet plasma concentration had a certain repair effect on tendon injury and can effectively improve the quality of healing. In addition, Lp-PRP was better than Lr-PRP in tissue healing. When the concentration of Lp-PRP was 100%, the repair
effect was the best.
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Affiliation(s)
- Yi Du
- Department of Surgery, Zhejiang University Hospital, Zhejiang University, Hangzhou, 310058, China
| | - Yifan Wu
- Department of Surgery, Zhejiang University Hospital, Zhejiang University, Hangzhou, 310058, China
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10
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Platelet ACKR3/CXCR7 Favors Anti-Platelet Lipids over an Atherothrombotic Lipidome and Regulates Thrombo-inflammation. Blood 2021; 139:1722-1742. [PMID: 34905596 DOI: 10.1182/blood.2021013097] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 11/30/2021] [Indexed: 11/20/2022] Open
Abstract
Platelet ACKR3/CXCR7 surface expression is enhanced and influences prognosis in coronary artery disease-(CAD) patients, who exhibit a distinct atherothrombotic platelet lipidome. Current investigation validates the potential of ACKR3/CXCR7 in regulating thrombo-inflammatory response, through its impact on the platelet lipidome. CAD patients-(n=230) with enhanced platelet-ACKR3/CXCR7 expression exhibited reduced aggregation. Pharmacological CXCR7-agonist-(VUF11207) significantly reduced pro-thrombotic platelet response in blood from ACS patients-(n=11) ex vivo. CXCR7-agonist administration reduced thrombotic functions and thrombo-inflammatory platelet-leukocyte interactions post myocardial infarction-(MI) and arterial injury in vivo. ACKR3/CXCR7-ligation did not affect surface availability of GPIbα, GPV, GPVI, GPIX, αv-integrin, β3-integrin, coagulation profile-(APTT, PT), bleeding time, plasma-dependent thrombin generation-(thrombinoscopy) or clot formation-(thromboelastography), but counteracted activation-induced phosphatidylserine exposure and procoagulant platelet-assisted thrombin generation. Targeted-(micro-UHPLC-ESI-QTrap-MS/MS) and untargeted-(UHPLC-ESI-QTOF-MS/MS) lipidomics analysis revealed that ACKR3/CXCR7-ligation favored generation of anti-thrombotic lipids-(dihomo-γ-linolenic acid-DGLA, 12-hydroxyeicosatrienoic acid-12-HETrE) over cyclooxygenase-COX-1-(thromboxane-TxA2), or 12-lipoxygenase-LOX-(12-HETE) metabolized pro-thrombotic, and phospholipase derived atherogenic-(lysophosphatidylcholine-LPC) lipids, in healthy subjects and CAD patients, contrary to anti-platelet therapy. Through 12-HETrE, ACKR3/CXCR7-ligation coordinated with Gαs-coupled prostacyclin receptor-(IP) to trigger cAMP-PKA mediated platelet inhibition. ACKR3/CXCR7-ligation reduced generation of lipid agonists-(arachidonic acid-AA,TxA2), lipid signaling intermediates-(lyophosphatidylinositol-LPI, diacylglycerol-DG), which affected calcium mobilization, intracellular signaling, consequently platelet interaction with physiological matrices and thrombo-inflammatory secretion-(IL1β,IFN-γ,TGF-β,IL-8), emphasizing its functional dichotomy from pro-thrombotic CXCR4. Moreover, CXCR7-agonist regulated heparin-induced thrombocytopenia-(HIT)-sera/IgG-induced platelet and neutrophil activation, heparin induced platelet aggregation-(HIPA), generation of COX-1-(TxA2), 12-LOX-(12-HETE) derived thrombo-inflammatory lipids, platelet-neutrophil aggregate formation, and thrombo-inflammatory secretion (sCD40L, IL-1β, IFN-γ, TNF-α, sP-selectin, IL-8, tissue factor-TF) ex vivo. Therefore, ACKR3/CXCR7 may offer a novel therapeutic strategy in acute/chronic thrombo-inflammation exaggerated cardiovascular pathologies, and CAD.
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11
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He B, Zhang W, Guled F, Harms A, Ramautar R, Hankemeier T. Analytical techniques for biomass-restricted metabolomics: An overview of the state-of-the-art. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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12
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Cebo M, Calderón Castro C, Schlotterbeck J, Gawaz M, Chatterjee M, Lämmerhofer M. Untargeted UHPLC-ESI-QTOF-MS/MS analysis with targeted feature extraction at precursor and fragment level for profiling of the platelet lipidome with ex vivo thrombin-activation. J Pharm Biomed Anal 2021; 205:114301. [PMID: 34391135 DOI: 10.1016/j.jpba.2021.114301] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/28/2021] [Accepted: 07/30/2021] [Indexed: 01/17/2023]
Abstract
Lipids play a major role in platelet signaling and activation. In this study, we analyzed the platelet lipidome in an untargeted manner by reversed-phase UHPLC for lipid species separation coupled to high-resolution QTOF-MS/MS in data-independent acquisition (DIA) mode with sequential window acquisition of all theoretical fragment ion mass spectra (SWATH) for compound detection. Lipid identification and peak picking was supported by the characteristic regular elution pattern of lipids differing in carbon and double bond numbers. It was primarily based on post-acquisition targeted feature extraction from the SWATH data. Multiple extracted ion chromatograms (EICs) from SWATH data of diagnostic ions on MS1 and MS2 level from both positive and negative ion mode allowed to distinguish between poorly resolved isomeric lipids based on their distinct fragment ions, which were used for relative quantification at a molecular lipid species level. It supports assay specificity for relative lipid quantitation via multiple quantifiably ions unlike to data-dependent acquisition methods which rely on precursor ions only. This approach was used to analyze human platelet samples. 457 lipids were annotated. Concentrations of lipids were estimated by stable isotope-labelled lipid class-specific internal standards as surrogate calibrants. Heatmaps of lipid concentrations in dependence on carbon and double bond numbers for the distinct lipid classes revealed a snapshot of the platelet lipidome in the resting state with lipid species distributions within classes supporting some functional interpretations. As expected, activation of the platelets by thrombin has led to significant alterations in the platelet lipidome as proven by univariate (volcano plot) and multivariate (PLS-DA) statistics. Several lipids were significantly up-regulated (lysophosphatidylinositols, oxylipins such as thromboxane B2 (TXB2), hydroxyheptadecatrienoic acid (HHT), hydroxyeicosatetraenoic acid (HETE), hydroxyoctadecadienoic acid (HODE), sphingoid-bases, (very) long chain saturated fatty acids) or down-regulated (lysophosphatidylethanolamines, polyunsaturated fatty acids, phosphatidylinositols). Several of them are well known as biomarkers of platelet activation while others may provide some further insights into pathways of platelet activation and platelet metabolism.
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Affiliation(s)
- Malgorzata Cebo
- University of Tübingen, Institute of Pharmaceutical Sciences, Pharmaceutical (Bio)Analysis, Auf der Morgenstelle 8, 72076, Tübingen, Germany
| | | | - Jörg Schlotterbeck
- University of Tübingen, Institute of Pharmaceutical Sciences, Pharmaceutical (Bio)Analysis, Auf der Morgenstelle 8, 72076, Tübingen, Germany
| | - Meinrad Gawaz
- Department of Cardiology and Angiology, University Hospital Tübingen, Otfried-Müller-Strasse 10, 72076, Tübingen, Germany
| | - Madhumita Chatterjee
- Department of Cardiology and Angiology, University Hospital Tübingen, Otfried-Müller-Strasse 10, 72076, Tübingen, Germany
| | - Michael Lämmerhofer
- University of Tübingen, Institute of Pharmaceutical Sciences, Pharmaceutical (Bio)Analysis, Auf der Morgenstelle 8, 72076, Tübingen, Germany.
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13
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Rampler E, Abiead YE, Schoeny H, Rusz M, Hildebrand F, Fitz V, Koellensperger G. Recurrent Topics in Mass Spectrometry-Based Metabolomics and Lipidomics-Standardization, Coverage, and Throughput. Anal Chem 2021; 93:519-545. [PMID: 33249827 PMCID: PMC7807424 DOI: 10.1021/acs.analchem.0c04698] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Evelyn Rampler
- Department of Analytical
Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria
- Vienna Metabolomics Center (VIME), University of Vienna, Althanstraße 14, 1090 Vienna, Austria
- University of Vienna, Althanstraße 14, 1090 Vienna, Austria
| | - Yasin El Abiead
- Department of Analytical
Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria
| | - Harald Schoeny
- Department of Analytical
Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria
| | - Mate Rusz
- Department of Analytical
Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria
- Institute of Inorganic
Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
| | - Felina Hildebrand
- Department of Analytical
Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria
| | - Veronika Fitz
- Department of Analytical
Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria
| | - Gunda Koellensperger
- Department of Analytical
Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria
- Vienna Metabolomics Center (VIME), University of Vienna, Althanstraße 14, 1090 Vienna, Austria
- University of Vienna, Althanstraße 14, 1090 Vienna, Austria
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