Article (Scientific journals)
Towards Lipidomics of Low-Abundant Species for Exploring Tumor Heterogeneity Guided by High-Resolution Mass Spectrometry Imaging
Cimino, Jonathan; Calligaris, David; Far, Johann et al.
2013In International Journal of Molecular Sciences, 14, p. 24560-24580
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Keywords :
MALDI mass spectrometry imaging;; FTICR mass spectrometry; lipidomics; hypoxia;; necrosis;; cancer
Abstract :
[en] Many studies have evidenced the main role of lipids in physiological and also pathological processes such as cancer, diabetes or neurodegenerative diseases. The identification and the in situ localization of specific low-abundant lipid species involved in cancer biology are still challenging for both fundamental studies and lipid marker discovery. In this paper, we report the identification and the localization of specific isobaric minor phospholipids in human breast cancer xenografts by FTICR MALDI imaging supported by histochemistry. These potential candidates can be further confirmed by liquid chromatography coupled with electrospray mass spectrometry (LC-ESI-MS) after extraction from the region of interest defined by MALDI imaging. Finally, this study highlights the importance of characterizing the heterogeneous distribution of low-abundant lipid species, relevant in complex histological samples for biological purposes.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Cimino, Jonathan ;  Université de Liège - ULiège > Département de chimie (sciences) > GIGA-R : Laboratoire de spectrométrie de masse (L.S.M.)
Calligaris, David
Far, Johann  ;  Université de Liège - ULiège > Center for Analytical Research and Technology (CART)
Debois, Delphine ;  Université de Liège - ULiège > Département de chimie (sciences) > GIGA-R : Laboratoire de spectrométrie de masse (L.S.M.)
Blacher, Silvia ;  Centre Hospitalier Universitaire de Liège - CHU > Centre d'oncologie
Sounni, Nor Eddine  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie cellulaire et moléculaire appliquée à l'homme
Noël, Agnès  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie cellulaire et moléculaire appliquée à l'homme
De Pauw, Edwin  ;  Université de Liège - ULiège > Département de chimie (sciences) > GIGA-R : Laboratoire de spectrométrie de masse (L.S.M.)
Language :
English
Title :
Towards Lipidomics of Low-Abundant Species for Exploring Tumor Heterogeneity Guided by High-Resolution Mass Spectrometry Imaging
Publication date :
2013
Journal title :
International Journal of Molecular Sciences
ISSN :
1661-6596
eISSN :
1422-0067
Publisher :
Molecular Diversity Preservation International (MDPI), Basel, Switzerland
Volume :
14
Pages :
24560-24580
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 January 2014

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