PuSH - Publication Server of Helmholtz Zentrum München

Langer, R.* ; Ott, K.* ; Feith, M.* ; Lordick, F.* ; Specht, K.* ; Becker, K.* ; Höfler, H.

High pretherapeutic thymidylate synthetase and MRP-1 protein levels are associated with nonresponse to neoadjuvant chemotherapy in oesophageal adenocarcinoma patients.

J. Surg. Oncol. 102, 503-508 (2010)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
BACKGROUND: The aim of this study was to determine whether pretherapeutic protein expression levels of the excision repair cross-complementing (ERCC1) enzyme, thymidylate synthetase (TS), multidrug-resistance protein 1 (MRP-1) and P-glycoprotein (P-gp) are associated with tumour response to cisplatin and fluorouracil (5-FU)-based neoadjuvant chemotherapy in oesophageal adenocarcinomas METHODS: The expression levels of ERCC1, TS, MDR-1 and P-gp were determined immunohistochemically in pretherapeutic tumour biopsies from 40 oesophageal adenocarcinoma patients and were correlated with histopathological tumour regression and with patient survival. Protein expression was compared to mRNA data, which was previously published for ERCC1, TS and MRP-1 and newly determined for the purpose of this study for MDR-1/P-gp. RESULTS: High-TS and -MRP-1 protein expression was correlated with tumour non-response to chemotherapy (P = 0.001 and P = 0.036, respectively). For ERCC-1 and P-gp, no association between pretherapeutic protein expression and response was found. There was no correlation between mRNA levels and protein expression for all investigated markers. Survival analysis revealed a trend towards increased survival for low-ERCC-1 expression (P = 0.079). CONCLUSIONS: The pattern of pretherapeutic expression of TS and MRP-1 is related to chemotherapy response in oesophageal adenocarcinoma patients. Immunohistochemical assessment of these markers may be helpful for response prediction.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
2.502
1.240
15
21
Tags
Annotations
Special Publikation
Hide on homepage

Edit extra information
Edit own tags
Private
Edit own annotation
Private
Hide on publication lists
on hompage
Mark as special
publikation
Publication type Article: Journal article
Document type Scientific Article
Keywords Oesophageal adenocarcinoma; Chemotherapy; Thymidylate synthetase; MRP-1
Language english
Publication Year 2010
HGF-reported in Year 2010
ISSN (print) / ISBN 0022-4790
e-ISSN 1096-9098
Quellenangaben Volume: 102, Issue: 5, Pages: 503-508 Article Number: , Supplement: ,
Publisher Wiley
Reviewing status Peer reviewed
POF-Topic(s) 30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Research field(s) Enabling and Novel Technologies
PSP Element(s) G-500300-001
PubMed ID 20589706
Erfassungsdatum 2010-07-23