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Published in: Cancer Chemotherapy and Pharmacology 3/2020

01-03-2020 | NSCLC | Original Article

Blood mRNA expression of REV3L and TYMS as potential predictive biomarkers from platinum-based chemotherapy plus pemetrexed in non-small cell lung cancer patients

Authors: M. Teresa Agulló-Ortuño, Inmaculada García-Ruiz, C. Vanesa Díaz-García, Ana B. Enguita, Virginia Pardo-Marqués, Elena Prieto-García, Santiago Ponce, Lara Iglesias, Jon Zugazagoitia, José A. López-Martín, Luis Paz-Ares, Juan A. Nuñez

Published in: Cancer Chemotherapy and Pharmacology | Issue 3/2020

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Abstract

Purpose

Therapeutic options for cancer patients have increased in the last years, although drugs resistance problem remains unresolved. Genetic background in individual susceptibility to cancer treatment could influence the therapy responses. The aim of this study was to explore the feasibility of using blood 4 genes (AEG-1, BRCA-1, REV3L and TYMS) expression levels as a predictor of the efficacy of pemetrexed therapy in patients with advanced non-small cell lung cancer.

Methods

Sixteen patients from the Medical Oncology Department at “12 de Octubre” Hospital, were included in the study. Total mRNA was isolated from blood samples, and gene expression was analyzed by RT-qPCR. A panel of lung tumor cell lines were used in cell proliferation tests and siRNA-mediated silencing assays.

Results

Similarity between blood gene expression levels and protein expression in matched tumor tissue was observed in 54.54% (REV3L) and 81.81% (TYMS) of cases. Gene expression of REV3L and TYMS in blood correlated directly and inversely, respectively, with progression-free survival and overall survival in the patients from our cohort. In tumor cell lines, the knockdown of REV3L conferred resistance to pemetrexed treatment, and the TYMS silencing increased the pemetrexed sensitivity of tumor cells.

Conclusions

The use of peripheral blood samples for expression quantification of interest genes is an affordable method with promising results in the evaluation of response to pemetrexed treatment. Therefore, expression levels of REV3L and TYMS genes might be used as predictive biomarkers in advanced NSCLC patients.
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Metadata
Title
Blood mRNA expression of REV3L and TYMS as potential predictive biomarkers from platinum-based chemotherapy plus pemetrexed in non-small cell lung cancer patients
Authors
M. Teresa Agulló-Ortuño
Inmaculada García-Ruiz
C. Vanesa Díaz-García
Ana B. Enguita
Virginia Pardo-Marqués
Elena Prieto-García
Santiago Ponce
Lara Iglesias
Jon Zugazagoitia
José A. López-Martín
Luis Paz-Ares
Juan A. Nuñez
Publication date
01-03-2020
Publisher
Springer Berlin Heidelberg
Published in
Cancer Chemotherapy and Pharmacology / Issue 3/2020
Print ISSN: 0344-5704
Electronic ISSN: 1432-0843
DOI
https://doi.org/10.1007/s00280-019-04008-9

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