Metabolic stability of cells for extended metabolomical measurements using NMR. A comparison between lysed and additionally heat inactivated cells.

Diserens, G; Hertig, Damian; Vermathen, Martina; Legeza, Balázs; Flück Pandey, Christa Emma; Nuoffer, Jean-Marc; Vermathen, Peter (2017). Metabolic stability of cells for extended metabolomical measurements using NMR. A comparison between lysed and additionally heat inactivated cells. The Analyst, 142(3), pp. 465-471. Royal Society of Chemistry 10.1039/c6an02195f

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NMR measurements for metabolic characterization of biological samples like cells, biopsies or plasma, may take several hours for advanced methods. Preanalytical issues, such as sample preparation and stability over the measurement time, may have a high impact on metabolite content, and potentially lead to misinterpretation. The aim of this study was therefore to investigate by 1H HR-MAS NMR the impact of different cell handling preparation protocols on the stability of the cell metabolite content over the measurement time. For this purpose, the metabolite content of fibroblasts and adrenal cells were measured at different time points after lysis and after additional heating. Interestingly the results showed similar metabolite concentrations between lysed and lysed-heated cells at the beginning of the measurement, but increasing differences after some hours of measurement. In lysed cells, metabolism was ongoing, producing metabolite changes over time, contrary to a stable metabolite content of the lysed-heated cells. These results were confirmed in both fibroblasts and adrenal cells. Therefore, in order to minimize metabolite content modifications over the measurement time, it is suggested to use cell lysis in combination with heat inactivation for extended HR-MAS NMR measurements.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Haematology, Oncology, Infectious Diseases, Laboratory Medicine and Hospital Pharmacy (DOLS) > Institute of Clinical Chemistry
04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic, Interventional and Paediatric Radiology > DCR Magnetic Resonance Spectroscopy and Methodology (AMSM)
04 Faculty of Medicine > Department of Gynaecology, Paediatrics and Endocrinology (DFKE) > Clinic of Paediatric Medicine
04 Faculty of Medicine > Department of Gynaecology, Paediatrics and Endocrinology (DFKE)
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR)
08 Faculty of Science > Departement of Chemistry and Biochemistry
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > Unit Childrens Hospital > Forschungsgruppe Endokrinologie / Diabetologie / Metabolik (Pädiatrie)
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > Forschungsbereich Pavillon 52 > Endokrinologie / Diabetologie (Erwachsene)

UniBE Contributor:

Hertig, Damian; Vermathen, Martina; Legeza, Balázs; Flück Pandey, Christa Emma; Nuoffer, Jean-Marc and Vermathen, Peter

Subjects:

600 Technology > 610 Medicine & health
500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

1364-5528

Publisher:

Royal Society of Chemistry

Language:

English

Submitter:

Nicole Rösch

Date Deposited:

21 Feb 2018 09:30

Last Modified:

21 Feb 2018 13:33

Publisher DOI:

10.1039/c6an02195f

PubMed ID:

28074201

BORIS DOI:

10.7892/boris.109633

URI:

https://boris.unibe.ch/id/eprint/109633

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