Endometriosis foci differentiation by rapid lipid profiling using tissue spray ionization and high resolution mass spectrometry

Vitaliy V. Chagovets, Zhihao Wang, Alexey S. Kononikhin, Natalia L. Starodubtseva, Anna Borisova, Dinara Salimova, Igor A. Popov, Andrey V. Kozachenko, Konstantin Chingin, Huanwen Chen, Vladimir E. Frankevich, Leila V. Adamyan, Gennady T. Sukhikh

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Obtaining fast screening information on molecular composition of a tissue sample is of great importance for a disease biomarkers search and for online surgery control. In this study, high resolution mass spectrometry analysis of eutopic and ectopic endometrium tissues (90 samples) is done using direct tissue spray mass spectrometry in both positive and negative ion modes. The most abundant peaks in the both ion modes are those corresponding to lipids. Species of three lipid classes are observed, phosphatidylcholines (PC), sphingomyelins (SM) and phosphoethanolamines (PE). Direct tissue analysis gives mainly information on PC and SM lipids (29 species) in positive ion mode and PC, SM and PE lipids (50 species) in negative ion mode which gives complementary data for endometriosis foci differentiation. The biggest differences were found for phospholipids with polyunsaturated acyls and alkils. Although, tissue spray shows itself as appropriate tool for tissue investigation, caution should be paid to the interpretation of mass spectra because of their higher complexity with more possible adducts formation and multiple interferences must be taken into account. The present work extends the application of direct tissue analysis for the rapid differentiation between endometriotic tissues of different foci.

Original languageEnglish
Article number2546
JournalScientific Reports
Volume7
Issue number1
DOIs
Publication statusPublished - 31 May 2017
Externally publishedYes

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