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Proteomic analysis of human lacrimal and tear fluid in dry eye disease

 Jae Hun Jung  ;  Yong Woo Ji  ;  Ho Sik Hwang  ;  Jae Won Oh  ;  Hyun Chang Kim  ;  Hyung Keun Lee  ;  Kwang Pyo Kim 
 SCIENTIFIC REPORTS, Vol.7(1) : 13363, 2017 
Journal Title
Issue Date
To understand the pathophysiology of dry eye disease (DED), it is necessary to characterize proteins in the ocular surface fluids, including tear fluid (TF) and lacrimal fluid (LF). There have been several reports of TF proteomes, but few proteomic studies have examined LF secreted from the lacrimal gland (LG). Therefore, we characterized the proteins constituting TF and LF by liquid chromatography mass spectrometry. TF and LF were collected from patients with non-Sjögren syndrome DED and from healthy subjects. Through protein profiling and label-free quantification, 1165 proteins from TF and 1448 from LF were identified. In total, 849 proteins were present in both TF and LF. Next, candidate biomarkers were verified using the multiple reaction monitoring assay in both TF and LF of 17 DED patients and 17 healthy controls. As a result, 16 marker proteins were identified (fold-change > 1.5, p-value < 0.05), of which 3 were upregulated in TF and 8 up- and 5 down-regulated in LF. In conclusion, this study revealed novel DED markers originating from the LG and tears by in-depth proteomic analysis and comparison of TF and LF proteins.
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1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Preventive Medicine (예방의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hyeon Chang(김현창) ORCID logo https://orcid.org/0000-0001-7867-1240
Lee, Hyung Keun(이형근) ORCID logo https://orcid.org/0000-0002-1123-2136
Ji, Yong Woo(지용우) ORCID logo https://orcid.org/0000-0002-7211-6278
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