Rob Vreeken deel 2
Transcription
Rob Vreeken deel 2
3D Data Orientation (LC + IMS + MS) …presentation of multi dimensional data Retention Retention Time Time Mass Mass Mobility Drift UPLC/IMS/TOF Lipid analysis RT_LCIM ST OF5.raw : 1 Lipids Lysos TAG’s Chotesteryl esters RT_LCIMSTOF5.raw : 1 PEG Apex 4D detection of ions using UPLC/IMS/TOF RT_LCIMSTOF5.r aw : 1 TIC 2D plot showing drift time v.s RT Drift Time plot All combined spectra RT_LCIMSTOF5.raw:1 *Red dots and sticks denotes Apex 4D peak detection An extra dimension with IMS PC 34:2 (many possible combinations) RT_LCIMSTOF5.r aw : 1 XIC for PC 34:2 m/z 758.58 Same m/z but significantly different drift times specially for co-eluting peaks RT_LCIMSTOF5.raw:1 An extra dimension with IMS –Let’s Zoom in PC 34:2 (many possible sn-1 and sn-2 combinations) Up to ca . 50 00 co m po un ds pe rr un !! RT_LCIMSTOF5.r aw : 1 RT_LCIMSTOF5.raw:1 Example 3: Identification of metabolites using fragmentation trees MS1 MS2 MS3 MS4 MSn experiment fragmentation tree (fragment masses) NanoMate(Advion)-LTQ Orbitrap XL (Thermo) Piotr Kasper, Miguel Rojas-Cherto, Justin v/d Hooft fragmentation tree (elemental formulas) Identification: assignment • identification of a known metabolite (its MS tree is included in the database) MSn compare Full MSn found in database! ID Collaboration between Leiden University, TNO, Wageningen University identification: structure elucidation • identification of an unknown metabolite (not in database) MSn compare NMR, MSn prediction, biological evidence … for ID verification ID candidate rejection not in database but similarities to sub-trees found structure generation + elemental composition Julio Pieroncely, Miguel Rojas-Cherto Collaboration between Leiden University, TNO, Wageningen University Content • What and Why in metabolomics? • Netherlands Metabolomics Centre • Examples: • Amine profiling • Lipid profiling • Metabolite Identification • Future developments • Acknowledgements NMC will result in • Breakthroughs in Technology NANOBOTS Single cell metabolomics? – Standardized quantitative methods for 1001000’s of identified compounds – Miniaturization & less invasive sampling (single cells, sampling pills etc) • Breakthroughs in Biology Microscopic machine roaming through the body Photographer Coneyl, reproduced courtesy of The Novartis and The Daily – Improved phenotyping & insights into basic Telegraph Visions of Science Photographic Awards. mechanisms by proper models – What are pathways, what are networks, what is system-wide regulation, what is homeostasis? – ‘Back’ to physiology – From correlation to causation • Breakthroughs in BioTech – Predictive biomarker profiles • responder/non-responder, safety & efficacy, risk of disease, Integration diagnostics & intervention – Design better microorganisms, plants, seeds • Optimize to synchronize & guarantee the moment of harvesting • Support improving seeds for better plant quality • Etc. Collaboration and open innovation is key..... .....and what we want to achieve From knowledge to market Health Insurances Biomarkers for health Samples Nanofabrication Food industry Pharma Demonstration & Competence Lab Technology breakthroughs New tools System therapeutics Applications Clinics Chip analyzer LCxLC interface Spin off MS interface Diagnostic devices Phenotyping device Biotechs Instrument manufactures Patients From knowledge to market Technology breakthroughs NMCtools New Applications From knowledge to market NMC System therapeutics Conclusions • Boost of technology (new instrumentation and open innovation) and its application result in new insights and better understanding of nature • This tough requires a broad consortium, combination industry & academia very beneficial (continuous development & application of technology in common research projects) • Transfer of technology platform (various models, spin-off) • NMC aims to initiate international metabolomics consortium • Interested? Contact us! More info: www.metabolomicscentre.nl Acknowledgement Thomas Hankemeier, Jan van der Greef, Heiko van der Linden, Theo Reijmers, Rob Vreeken, Adrie Dane, Frans van der Kloet, Marek Noga, Maya Kochman, Miguel Rojas, Piotr Kasper, Toshi Mikami, Alexander Tempels, Eduard van Wijk, Bea Reeuwijk, Gerwin Spijksma, Faisa Guled, Iryna Paliukhovich, Jorne Troost, Jose Castro-Perez, Narmin Ismail, Willem Engel, Maud Koek (TNO) Kjeld Janssen, Jurre Kamphorst, Peter Lindenburg, Harmen Draisma, Jos Quist, Jiajie Li, Shanna Shi, Herman van Wietmarschen, Julio Peironcely, Jiangshan Wang, Chunxiu Hu (cooperation with prof. Xu, Dalian), Ronnie van Doorn & Bernd van Buuren (MT NMC) CAS KNAW Joint Programme www.metabolomicscentre.nl