The Activity of KIF14, Mieap, and EZR in a New Type of the Invasive Component, Torpedo-Like Structures, Predetermines the Metastatic Potential of Breast Cancer

Cancers
Tatiana S GerashchenkoEvgeny V Denisov

Abstract

Intratumor morphological heterogeneity reflects patterns of invasive growth and is an indicator of the metastatic potential of breast cancer. In this study, we used this heterogeneity to identify molecules associated with breast cancer invasion and metastasis. The gene expression microarray data were used to identify genes differentially expressed between solid, trabecular, and other morphological arrangements of tumor cells. Immunohistochemistry was applied to evaluate the association of the selected proteins with metastasis. RNA-sequencing was performed to analyze the molecular makeup of metastatic tumor cells. High frequency of metastases and decreased metastasis-free survival were detected in patients either with positive expression of KIF14 or Mieap or negative expression of EZR at the tips of the torpedo-like structures in breast cancers. KIF14- and Mieap-positive and EZR-negative cells were mainly detected in the torpedo-like structures of the same breast tumors; however, their transcriptomic features differed. KIF14-positive cells showed a significant upregulation of genes involved in ether lipid metabolism. Mieap-positive cells were enriched in genes involved in mitophagy. EZR-negative cells displayed upregulated genes...Continue Reading

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Citations

Nov 19, 2020·British Journal of Cancer·Nikita M NovikovEvgeny V Denisov

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Datasets Mentioned

BETA
GSE80754

Methods Mentioned

BETA
RNA-Seq

Software Mentioned

Gene Set Enrichment Analysis
limma
R
inForm Advanced Image Analysis
BioConductor
featureCounts
DESeq2
STAR
XLStat
Enrichr

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