Evaluation of the prognostic significances of γ-secretase genes in pancreatic cancer.

Abstract:

:With the growing requirement for novel prognostic biomarkers for pancreatic cancer, many studies have focused on clinical and/or genomic variables. Although many studies have been performed, carbohydrate antigen 19-9 is the only biomarker in clinical use. Therefore, the present study examined whether γ-secretase genes, including presenilin (PSEN), nicastrin (NCSTN), presenilin enhancer protein 2 (PSENEN), and anterior pharynx-defective 1 (APH1-), could serve as prognostic factors for pancreatic cancer. The cohorts selected included >100 pancreatic cancer patients. Patient data were downloaded from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GSE21501). The prognostic roles of the γ-secretase genes were analyzed by several survival analysis methods. Among the γ-secretase genes, the prognosis tended to be worse in the 2 cohorts with increasing expression of PSEN1, APH1A, and PSENEN, while the remaining genes were the opposite in the 2 cohorts. Notably, although the patient characteristics were quite different, APH1A was statistically significantly associated with prognosis in the 2 cohorts. The hazard ratio of APH1A for overall survival was 1.598 (TCGA) and 2.724 (GSE21501). These results contribute to the study of γ-secretase in pancreatic cancer. We believe that γ-secretase, particularly APH1A, will be a new prognostic biomarker for pancreatic cancer.

journal_name

Oncol Lett

journal_title

Oncology letters

authors

Jeon YH,Ha M,Kim SW,Kim MJ,Lee CS,Oh CK,Han ME,Oh SO,Kim YH

doi

10.3892/ol.2019.10113

subject

Has Abstract

pub_date

2019-05-01 00:00:00

pages

4614-4620

issue

5

eissn

1792-1074

issn

1792-1082

pii

OL-0-0-10113

journal_volume

17

pub_type

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