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Research Paper|Volume 13, Issue 3|pp 4096—4114

Expression and prognostic analyses of SCAMPs in pancreatic adenocarcinoma

Feiyu Mao1, Heng Duan2, Aly Allamyradov1, Zechang Xin2, Yan Du2, Xiaodong Wang3, Peng Xu3, Zhennan Li3, Jianjun Qian3, Jie Yao1,3
  • 1Clinical Medical College of Yangzhou University, Yangzhou 225001, Jiangsu Province, China
  • 2The First Affiliated Hospital of Dalian Medical University, Dalian 116044, Liaoning Province, China
  • 3Department of Hepatobiliary and Pancreatic Surgery, Northern Jiangsu People’s Hospital, Guangling Qu, Yangzhou 225001, Jiangsu Province, China
* Co-first authors
Received: July 1, 2020Accepted: November 23, 2020Published: January 20, 2021
https://doi.org/10.18632/aging.202377

Copyright: © 2021 Mao et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Due to the difficulties in early diagnosis of pancreatic adenocarcinoma (PAAD), many patients fail to receive optimal therapeutic regimens. The Secretory-Carrier-Membrane-Proteins (SCAMPs) are known to be dysregulated in a range of human diseases due to their characterized roles in mammalian cell exocytosis inferred from their functions as integral membrane proteins. However, the expression and prognostic value of SCAMPs in PAAD is poorly characterized. We compared cancer vs. healthy tissue and found that the expression of SCAMPs1-4 was upregulated in PAAD compared to normal tissue. In contrast, SCAMP5 expression was downregulated in PAAD. Moreover, the expression of SCAMPs1-4 was enhanced in PAAD cell lines according to Cancer Cell Line public database. Furthermore, the HPA, GEPIA databases and immunohistochemical analysis from 238 patients suggested that the loss of SCAMP1 led to improved overall survival (OS), whilst lower SCAMP5 levels led to a poorer OS. The univariate and multivariate analysis showed that SCAMP1 and SCAMP5 expression were independent prognostic factors of PAAD. In addition, the cBioPortal for Cancer Genomics, LinkedOmics datasets, and the GEPIA were used to identify the co-expression genes of SCAMP1,5 and the correlation between SCAMPs members. We conclude that SCAMPs 1 and 5 significantly represent promising diagnosis and prognostic biomarkers.