Abstract

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS)-based serum N-glycan analysis has gained acknowledgment for the diagnosis of breast cancer in recent years. In this study, the possibilities of expanding its application for breast cancer management and surveillance were discovered and evaluated. First, a novel MALDI-TOF platform, IDsys RT, was confirmed to be effective for breast cancer analysis, showing a maximum area under the curve of 0.91. Multiple N-glycan markers were identified and validated using this process, and they were found to be applicable for differentiating recurring breast cancer samples from healthy control or ordinary breast cancer samples. Recurrence samples were especially distinct from non-recurrence samples when N-glycan signatures were sampled in multiple time points and monitored via MALDI-TOF, throughout the therapy. These results suggested the feasibility of MALDI-TOF-based N-glycan analysis for tracking the molecular signatures of breast cancer and predicting recurrence.

Details

Title
Potential of MALDI-TOF-based serum N-glycan analysis for the diagnosis and surveillance of breast cancer
Author
Lee, Jong Won 1 ; Lee, Kyungsoo 2 ; Ahn, Sei Hyun 1 ; Son, Byung Ho 1 ; Ko, Beom Seok 1 ; Jeong, Kim Hee 1 ; Chung Il Yong 1 ; Kim, Jisun 1 ; Lee, Woochang 3 ; Myung-Su, Ko 4 ; Choi Soojeong 1 ; Chang Suhwan 5 ; Ko Chung Kon 2 ; Lee, Sae Byul 1 ; Dong-Chan, Kim 2 

 Asan Medical Center, University of Ulsan College of Medicine, Division of Breast Surgery, Department of Surgery, Seoul, Republic of Korea (GRID:grid.413967.e) (ISNI:0000 0001 0842 2126) 
 R&D Center, NOSQUEST Inc., Seongnam-si, Republic of Korea (GRID:grid.413967.e) 
 Asan Medical Center, University of Ulsan College of Medicine, Department of Laboratory Medicine, Seoul, Republic of Korea (GRID:grid.413967.e) (ISNI:0000 0001 0842 2126) 
 Asan Medical Center, Health Screening and Promotion Center, Seoul, Republic of Korea (GRID:grid.413967.e) (ISNI:0000 0001 0842 2126) 
 Asan Medical Center, University of Ulsan College of Medicine, Department of Biomedical Sciences, Seoul, Republic of Korea (GRID:grid.413967.e) (ISNI:0000 0001 0842 2126) 
Publication year
2020
Publication date
2020
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2471545039
Copyright
© The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.