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Validation of IL-7R as an Immunological Biomarker for Human Pancreatic Ductal Adenocarcinoma

 Sung-Ill Jang  ;  Jae-Hee Cho  ;  So-Young Kim  ;  In-Young Hong  ;  Joon-Seong Park  ;  Hye-Sun Lee  ;  Goeun Park  ;  Jong-Kyoung Kim  ;  Hyung-Keun Lee  ;  Dong-Ki Lee 
 CANCERS, Vol.14(3) : 853, 2022-02 
Journal Title
Issue Date
cytokine ; diagnosis ; interleukin-7 receptor ; pancreatic ductal adenocarcinoma
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive cancer for which no early diagnostic method is available. The immune surveillance hypothesis suggests that the immune system plays crucial roles in tumor development and progression. We validated a PDAC-specific biomarker derived from peripheral blood mononuclear cells (PBMCs) to facilitate early PDAC diagnosis. mRNA levels of interleukin-7R (IL-7R), reportedly a potential immunological marker for PDAC, were measured in PBMCs isolated prospectively from healthy controls (n = 100) and patients with PDAC (n = 135), pancreatic cysts (n = 82), chronic pancreatitis (n = 42), acute pancreatitis (n = 47), and other malignancies (n = 116). The IL-7R level was significantly higher in patients with PDAC than in healthy controls, patients with benign pancreatic disease, and patients with other malignancies. As diagnostic parameters, the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy for IL-7R were 58.5%, 92%, 90.8%, 62.2%, and 72.8%, respectively. The area under the receiver operating characteristic curve (AUROC) was 0.766. IL-7R levels did not differ between resectable and unresectable PDAC cases. The combined measurement of IL-7R and carbohydrate antigen 19-9 (CA19-9) significantly improved the diagnostic parameters and AUROC compared with the use of IL-7R or CA19-9 alone. IL-7R is significantly upregulated in PBMCs in patients with PDAC, and it may be a novel diagnostic marker for PDAC. The combined use of IL-7R and CA19-9 enhanced the diagnostic performance.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원) > 1. Journal Papers
Yonsei Authors
Park, Goeun(박고은)
Park, Joon Seong(박준성) ORCID logo https://orcid.org/0000-0001-8048-9990
Lee, Dong Ki(이동기) ORCID logo https://orcid.org/0000-0002-0048-9112
Lee, Hyung Keun(이형근) ORCID logo https://orcid.org/0000-0002-1123-2136
Lee, Hye Sun(이혜선) ORCID logo https://orcid.org/0000-0001-6328-6948
Jang, Sung Ill(장성일) ORCID logo https://orcid.org/0000-0003-4937-6167
Cho, Jae Hee(조재희) ORCID logo https://orcid.org/0000-0003-4174-0091
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