Home FOR AUTHORS Neoplasma 2016 Neoplasma Vol.63, No.4, p.588-594,2016

Journal info


6 times a year.
Founded: 1954
ISSN 0028-2685
ISSN 1338-4317 (online)

Published in English

Editorial Info
Abstracted and Indexed
Submission Guidelines

Select Journal







Webshop Cart

Your Cart is currently empty.

Info: Your browser does not accept cookies. To put products into your cart and purchase them you need to enable cookies.

Neoplasma Vol.63, No.4, p.588-594,2016

Title: Expression of ER stress markers (GRP78/BiP and PERK) in patients with tongue cancer
Author: K. KAIRA, M. TOYODA, A. SHIMIZU, K. MORI, M. SHINO, K. SAKAKURA, Y. TAKAYASU, K. TAKAHASHI, T. OYAMA, T. ASAO, K. CHIKAMATSU

Abstract: The glucose-regulated protein (GRP78/BiP) and PKR-like endoplasmic reticulum kinase (PERK) plays a crucial role in the endoplasmic reticulum (ER) stress response. GRP78/BiP is highly elevated in various human cancers. Our study is to examine the clinicopathological significance of GRP78/BiP and PERK expression in patients with tongue cancer.
A total of 85 tongue cancer patients were analyzed, and tumor specimens were stained by immunohistochemistry for GRP78/BiP, PERK, GLUT1, Ki-67 and microvessel density (MVD) determined by CD34.
GRP78/BiP and PERK were highly expressed in 47% and 35% of all patients, respectively. GRP78/BiP disclosed a significant relationship with PERK expression, lymphatic permeation, vascular invasion, glucose metabolism and cell proliferation. The expression of GRP78/BiP was significantly higher in metastatic sites than in primary sites (79% vs. 47%, p=0.003). We found that the high expression of GRP78/BiP was proven to be an independent prognostic factor for predicting poor outcome in patients with tongue cancer. In the analysis of PFS, PERK was identified as an independent predictor.
The increased GRP78/BiP expression was clarified as an independent prognostic marker for predicting worse outcome. Our study suggests that the expression of GRP78/BiP as ER stress marker is important in the pathogenesis and development of tongue cancer.

Keywords: GRP78/BiP, PERK, ER stress, Tongue cancer, prognosis
Published online: 14-Jul-2016
Year: 2016, Volume: 63, Issue: 4 Page From: 588, Page To: 594
doi:10.4149/neo_2016_412


download file



© AEPress s.r.o
Copyright notice: For any permission to reproduce, archive or otherwise use the documents in the ELiS, please contact AEP.