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Plasma Lysyl-tRNA Synthetase 1 (KARS1) as a Novel Diagnostic and Monitoring Biomarker for Colorectal Cancer

Authors
 Ji Hun Suh  ;  Min Chul Park  ;  Peter C Goughnour  ;  Byung Soh Min  ;  Sang Bum Kim  ;  Woo Yong Lee  ;  Yong Beom Cho  ;  Jae Hee Cheon  ;  Kang Young Lee  ;  Do-Hyun Nam  ;  Sunghoon Kim 
Citation
 JOURNAL OF CLINICAL MEDICINE, Vol.9(2) : 533, 2020-02 
Journal Title
JOURNAL OF CLINICAL MEDICINE
Issue Date
2020-02
Keywords
lysyl-tRNA synthetase ; colorectal cancer ; serologic biomarker ; diagnosis ; monitoring ; noninvasive method
Abstract
Colorectal cancer (CRC) is one of the leading causes of world cancer deaths. To improve the survival rate of CRC, diagnosis and post-operative monitoring is necessary. Currently, biomarkers are used for CRC diagnosis and prognosis. However, these biomarkers have limitations of specificity and sensitivity. Levels of plasma lysyl-tRNA synthetase (KARS1), which was reported to be secreted from colon cancer cells by stimuli, along with other secreted aminoacyl-tRNA synthetases (ARSs), were analyzed in CRC and compared with the currently used biomarkers. The KARS1 levels of CRC patients (n = 164) plasma were shown to be higher than those of healthy volunteers (n = 32). The diagnostic values of plasma KARS1 were also evaluated by receiving operating characteristic (ROC) curve. Compared with other biomarkers and ARSs, KARS1 showed the best diagnostic value for CRC. The cancer specificity and burden correlation of plasma KARS1 level were validated using azoxymethane (AOM)/dextran sodium sulfate (DSS) model, and paired pre- and post-surgery CRC patient plasma. In the AOM/DSS model, the plasma level of KARS1 showed high correlation with number of polyps, but not for inflammation. Using paired pre- and post-surgery CRC plasma samples (n = 60), the plasma level of KARS1 was significantly decreased in post-surgery samples. Based on these evidence, KARS1, a surrogate biomarker reflecting CRC burden, can be used as a novel diagnostic and post-operative monitoring biomarker for CRC.
Files in This Item:
T9992020457.pdf Download
DOI
10.3390/jcm9020533
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Min, Byung Soh(민병소) ORCID logo https://orcid.org/0000-0003-0180-8565
Lee, Kang Young(이강영)
Cheon, Jae Hee(천재희) ORCID logo https://orcid.org/0000-0002-2282-8904
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/190232
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