Evaluation of K-ras and p53 expression in pancreatic adenocarcinoma using the cancer genome atlas.

Genetic alterations in K-ras and p53 are thought to be critical in pancreatic cancer development and progression. However, K-ras and p53 expression in pancreatic adenocarcinoma have not been systematically examined in The Cancer Genome Atlas (TCGA) Data Portal. Information regarding K-ras and p53 al...

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Main Authors: Liming Lu, Jingchun Zeng
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5526503?pdf=render
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author Liming Lu
Jingchun Zeng
author_facet Liming Lu
Jingchun Zeng
author_sort Liming Lu
collection DOAJ
description Genetic alterations in K-ras and p53 are thought to be critical in pancreatic cancer development and progression. However, K-ras and p53 expression in pancreatic adenocarcinoma have not been systematically examined in The Cancer Genome Atlas (TCGA) Data Portal. Information regarding K-ras and p53 alterations, mRNA expression data, and protein/protein phosphorylation abundance was retrieved from The Cancer Genome Atlas (TCGA) databases, and analyses were performed by the cBioPortal for Cancer Genomics. The mutual exclusivity analysis showed that events in K-ras and p53 were likely to co-occur in pancreatic adenocarcinoma (Log odds ratio = 1.599, P = 0.006). The graphical summary of the mutations showed that there were hotspots for protein activation. In the network analysis, no solid association between K-ras and p53 was observed in pancreatic adenocarcinoma. In the survival analysis, neither K-ras nor p53 were associated with both survival events. As in the data mining study in the TCGA databases, our study provides a new perspective to understand the genetic features of K-ras and p53 in pancreatic adenocarcinoma.
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spelling doaj.art-087a7f89ffec455191c5fe373d45fe442022-12-22T03:54:03ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01127e018153210.1371/journal.pone.0181532Evaluation of K-ras and p53 expression in pancreatic adenocarcinoma using the cancer genome atlas.Liming LuJingchun ZengGenetic alterations in K-ras and p53 are thought to be critical in pancreatic cancer development and progression. However, K-ras and p53 expression in pancreatic adenocarcinoma have not been systematically examined in The Cancer Genome Atlas (TCGA) Data Portal. Information regarding K-ras and p53 alterations, mRNA expression data, and protein/protein phosphorylation abundance was retrieved from The Cancer Genome Atlas (TCGA) databases, and analyses were performed by the cBioPortal for Cancer Genomics. The mutual exclusivity analysis showed that events in K-ras and p53 were likely to co-occur in pancreatic adenocarcinoma (Log odds ratio = 1.599, P = 0.006). The graphical summary of the mutations showed that there were hotspots for protein activation. In the network analysis, no solid association between K-ras and p53 was observed in pancreatic adenocarcinoma. In the survival analysis, neither K-ras nor p53 were associated with both survival events. As in the data mining study in the TCGA databases, our study provides a new perspective to understand the genetic features of K-ras and p53 in pancreatic adenocarcinoma.http://europepmc.org/articles/PMC5526503?pdf=render
spellingShingle Liming Lu
Jingchun Zeng
Evaluation of K-ras and p53 expression in pancreatic adenocarcinoma using the cancer genome atlas.
PLoS ONE
title Evaluation of K-ras and p53 expression in pancreatic adenocarcinoma using the cancer genome atlas.
title_full Evaluation of K-ras and p53 expression in pancreatic adenocarcinoma using the cancer genome atlas.
title_fullStr Evaluation of K-ras and p53 expression in pancreatic adenocarcinoma using the cancer genome atlas.
title_full_unstemmed Evaluation of K-ras and p53 expression in pancreatic adenocarcinoma using the cancer genome atlas.
title_short Evaluation of K-ras and p53 expression in pancreatic adenocarcinoma using the cancer genome atlas.
title_sort evaluation of k ras and p53 expression in pancreatic adenocarcinoma using the cancer genome atlas
url http://europepmc.org/articles/PMC5526503?pdf=render
work_keys_str_mv AT liminglu evaluationofkrasandp53expressioninpancreaticadenocarcinomausingthecancergenomeatlas
AT jingchunzeng evaluationofkrasandp53expressioninpancreaticadenocarcinomausingthecancergenomeatlas