Intact-cell maldi-tof mass spectrometry for the authentication of drug-adapted cancer cell lines

  • The use of cell lines in research can be affected by cell line misidentification. Short tandem repeat (STR) analysis is an effective method, and the gold standard, for the identification of the genetic origin of a cell line, but methods that allow the discrimination between cell lines of the same genetic origin are lacking. Here, we use intact cell MALDI-ToF mass spectrometry analysis, routinely used for the identification of bacteria in clinical diagnostic procedures, for the authentication of a set of cell lines consisting of three parental neuroblastoma cell lines (IMR-5, IMR-32 and UKF-NB-3) and eleven drug-adapted sublines. Principal component analysis (PCA) of intact-cell MALDI-ToF mass spectrometry data revealed clear differences between most, but not all, of the investigated cell lines. Mass spectrometry whole-cell fingerprints enabled the separation of IMR-32 and its clonal subline IMR-5. Sublines that had been adapted to closely related drugs, for example, the cisplatin- and oxaliplatin-resistant UKF-NB-3 sublines and the vincristine- and vinblastine-adapted IMR-5 sublines, also displayed clearly distinctive patterns. In conclusion, intact whole-cell MALDI-ToF mass spectrometry has the potential to be further developed into an authentication method for mammalian cells of a common genetic origin.

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Author:Jane F. Povey, Emily Saintas, Adewale V. Aderemi, Florian Rothweiler, Richard ZehnerGND, Wilhelm G. Dirks, Jindrich Cinatl, Andrew J. Racher, Mark N. WassORCiD, C. Mark Smales, Martin MichaelisORCiDGND
URN:urn:nbn:de:hebis:30:3-510929
DOI:https://doi.org/10.3390/cells8101194
ISSN:2073-4409
Pubmed Id:https://pubmed.ncbi.nlm.nih.gov/31581737
Parent Title (English):Cells
Publisher:MDPI
Place of publication:Basel
Document Type:Article
Language:English
Year of Completion:2019
Date of first Publication:2019/10/02
Publishing Institution:Universit├Ątsbibliothek Johann Christian Senckenberg
Release Date:2019/10/14
Tag:authentication; cancer; cell line; isogenic; mass spectrometry
Volume:8
Issue:10, Art. 1194
Page Number:12
First Page:1
Last Page:12
Note:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
HeBIS-PPN:455331243
Institutes:Medizin / Medizin
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Sammlungen:Universit├Ątspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0