The AKT1/NF-kappaB/Notch1/PTEN axis has an important role in chemoresistance of gastric cancer cells

The inherent resistance of tumors to DNA damage often limits the efficacy of chemotherapy. The aim of this work is to explore the potential mechanism for development of chemoresistance in gastric cancer. Our data revealed that AKT1 mRNA and protein expression were induced by doxorubicin (a chemother...

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Autores principales: Zhou, W, Fu, X-Q, Zhang, L-L, Zhang, J, Huang, X, Lu, X-H, Shen, L, Liu, B-N, Liu, J, Luo, H-S, Yu, J-P, Yu, H-G
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3824684/
https://www.ncbi.nlm.nih.gov/pubmed/24113181
http://dx.doi.org/10.1038/cddis.2013.375
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author Zhou, W
Fu, X-Q
Zhang, L-L
Zhang, J
Huang, X
Lu, X-H
Shen, L
Liu, B-N
Liu, J
Luo, H-S
Yu, J-P
Yu, H-G
author_facet Zhou, W
Fu, X-Q
Zhang, L-L
Zhang, J
Huang, X
Lu, X-H
Shen, L
Liu, B-N
Liu, J
Luo, H-S
Yu, J-P
Yu, H-G
author_sort Zhou, W
collection PubMed
description The inherent resistance of tumors to DNA damage often limits the efficacy of chemotherapy. The aim of this work is to explore the potential mechanism for development of chemoresistance in gastric cancer. Our data revealed that AKT1 mRNA and protein expression were induced by doxorubicin (a chemotherapeutic agent); the doxorubicin-induced AKT1 expression and activation increased the binding of NF-kappaB on Notch1 DNA promoter and then promoted the Notch1 transcription and expression; enhanced expression of Notch1 further upregulated PTEN expression through CBF-1 binding to PTEN DNA promoter; and inhibition of AKT1 expression and activity sensitized the gastric cancer cell to doxorubicin treatment in cultured gastric cancer cell lines and xenograft nude mice gastric cancer model. Furthermore, our data demonstrated that both Notch1 and PTEN were absent or minimally expressed in gastric cancer tissue but abundant in paired normal gastric mucosa, and the expression of Notch1 correlated with that of PTEN. Together, these novel results suggested that a novel AKT1/NF-kappaB/Notch1/PTEN axis has an important role in the development of chemoresistance in gastric cancer. Notch1 has an anti-cancer role in gastric cancer.
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spelling pubmed-38246842013-11-12 The AKT1/NF-kappaB/Notch1/PTEN axis has an important role in chemoresistance of gastric cancer cells Zhou, W Fu, X-Q Zhang, L-L Zhang, J Huang, X Lu, X-H Shen, L Liu, B-N Liu, J Luo, H-S Yu, J-P Yu, H-G Cell Death Dis Original Article The inherent resistance of tumors to DNA damage often limits the efficacy of chemotherapy. The aim of this work is to explore the potential mechanism for development of chemoresistance in gastric cancer. Our data revealed that AKT1 mRNA and protein expression were induced by doxorubicin (a chemotherapeutic agent); the doxorubicin-induced AKT1 expression and activation increased the binding of NF-kappaB on Notch1 DNA promoter and then promoted the Notch1 transcription and expression; enhanced expression of Notch1 further upregulated PTEN expression through CBF-1 binding to PTEN DNA promoter; and inhibition of AKT1 expression and activity sensitized the gastric cancer cell to doxorubicin treatment in cultured gastric cancer cell lines and xenograft nude mice gastric cancer model. Furthermore, our data demonstrated that both Notch1 and PTEN were absent or minimally expressed in gastric cancer tissue but abundant in paired normal gastric mucosa, and the expression of Notch1 correlated with that of PTEN. Together, these novel results suggested that a novel AKT1/NF-kappaB/Notch1/PTEN axis has an important role in the development of chemoresistance in gastric cancer. Notch1 has an anti-cancer role in gastric cancer. Nature Publishing Group 2013-10 2013-10-10 /pmc/articles/PMC3824684/ /pubmed/24113181 http://dx.doi.org/10.1038/cddis.2013.375 Text en Copyright © 2013 Macmillan Publishers Limited http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
spellingShingle Original Article
Zhou, W
Fu, X-Q
Zhang, L-L
Zhang, J
Huang, X
Lu, X-H
Shen, L
Liu, B-N
Liu, J
Luo, H-S
Yu, J-P
Yu, H-G
The AKT1/NF-kappaB/Notch1/PTEN axis has an important role in chemoresistance of gastric cancer cells
title The AKT1/NF-kappaB/Notch1/PTEN axis has an important role in chemoresistance of gastric cancer cells
title_full The AKT1/NF-kappaB/Notch1/PTEN axis has an important role in chemoresistance of gastric cancer cells
title_fullStr The AKT1/NF-kappaB/Notch1/PTEN axis has an important role in chemoresistance of gastric cancer cells
title_full_unstemmed The AKT1/NF-kappaB/Notch1/PTEN axis has an important role in chemoresistance of gastric cancer cells
title_short The AKT1/NF-kappaB/Notch1/PTEN axis has an important role in chemoresistance of gastric cancer cells
title_sort akt1/nf-kappab/notch1/pten axis has an important role in chemoresistance of gastric cancer cells
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3824684/
https://www.ncbi.nlm.nih.gov/pubmed/24113181
http://dx.doi.org/10.1038/cddis.2013.375
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