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Properties and gene expression profiling of acquired radioresistance in mouse breast cancer cells
BACKGROUND: Acquired radioresistant cells exhibit many characteristic changes which may influence cancer progression and further treatment options. The purpose of this study is to investigate the changes of radioresistant human epidermal growth factor receptor 2 (HER2)-positive breast cancer cells o...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
AME Publishing Company
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8106033/ https://www.ncbi.nlm.nih.gov/pubmed/33987326 http://dx.doi.org/10.21037/atm-20-4667 |
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author | Qin, Feng Fan, Qiang Yu, Peter K. N. Almahi, Waleed Abdelbagi Kong, Peizhong Yang, Miaomiao Cao, Wei Nie, Lili Chen, Guodong Han, Wei |
author_facet | Qin, Feng Fan, Qiang Yu, Peter K. N. Almahi, Waleed Abdelbagi Kong, Peizhong Yang, Miaomiao Cao, Wei Nie, Lili Chen, Guodong Han, Wei |
author_sort | Qin, Feng |
collection | PubMed |
description | BACKGROUND: Acquired radioresistant cells exhibit many characteristic changes which may influence cancer progression and further treatment options. The purpose of this study is to investigate the changes of radioresistant human epidermal growth factor receptor 2 (HER2)-positive breast cancer cells on both phenotypic and molecular levels. METHODS: We established an acquired radioresistant cell line from its parental NF639 cell line (HER2-positive) by fractionated radiation and assessed changes in cellular morphology, proliferation, migration, anti-apoptosis activity, basal reactive oxygen species (ROS) level and energy metabolism. RNA-sequencing (RNA-seq) was also used to reveal the potential regulating genes and molecular mechanisms associated with the acquired changed phenotypes. Real-time PCR was used to validate the results of RNA-seq. RESULTS: The NF639R cells exhibited increased radioresistance and enhanced activity of proliferation, migration and anti-apoptosis, but decreased basal ROS. Two main energy metabolism pathways, mitochondrial respiration and glycolytic, were also upregulated. Furthermore, 490 differentially expressed genes were identified by RNA-seq. Enrichment analysis based on Gene Ontology and Kyoto Encyclopedia of Genes and Genomes showed many differently expressed genes were significantly enriched in cell morphology, proliferation, migration, anti-apoptosis, antioxidation, tumor stem cells and energy metabolism and the signaling cascades such as the transforming growth factor-β, Wnt, Hedgehog, vascular endothelial growth factor, retinoic acid-inducible gene I (RIG-I)-like receptor, Toll-like receptor and nucleotide oligomerization domain (NOD)-like receptor were significantly altered in NF639R cells. CONCLUSIONS: In clinical radiotherapy, repeat radiotherapy for short-term recurrence of breast cancer may result in enhanced radioresistance and promote malignant progression. Our research provided hints to understand the tumor resistance to radiotherapy de novo and recurrence with a worse prognosis following radiotherapy. |
format | Online Article Text |
id | pubmed-8106033 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | AME Publishing Company |
record_format | MEDLINE/PubMed |
spelling | pubmed-81060332021-05-12 Properties and gene expression profiling of acquired radioresistance in mouse breast cancer cells Qin, Feng Fan, Qiang Yu, Peter K. N. Almahi, Waleed Abdelbagi Kong, Peizhong Yang, Miaomiao Cao, Wei Nie, Lili Chen, Guodong Han, Wei Ann Transl Med Original Article BACKGROUND: Acquired radioresistant cells exhibit many characteristic changes which may influence cancer progression and further treatment options. The purpose of this study is to investigate the changes of radioresistant human epidermal growth factor receptor 2 (HER2)-positive breast cancer cells on both phenotypic and molecular levels. METHODS: We established an acquired radioresistant cell line from its parental NF639 cell line (HER2-positive) by fractionated radiation and assessed changes in cellular morphology, proliferation, migration, anti-apoptosis activity, basal reactive oxygen species (ROS) level and energy metabolism. RNA-sequencing (RNA-seq) was also used to reveal the potential regulating genes and molecular mechanisms associated with the acquired changed phenotypes. Real-time PCR was used to validate the results of RNA-seq. RESULTS: The NF639R cells exhibited increased radioresistance and enhanced activity of proliferation, migration and anti-apoptosis, but decreased basal ROS. Two main energy metabolism pathways, mitochondrial respiration and glycolytic, were also upregulated. Furthermore, 490 differentially expressed genes were identified by RNA-seq. Enrichment analysis based on Gene Ontology and Kyoto Encyclopedia of Genes and Genomes showed many differently expressed genes were significantly enriched in cell morphology, proliferation, migration, anti-apoptosis, antioxidation, tumor stem cells and energy metabolism and the signaling cascades such as the transforming growth factor-β, Wnt, Hedgehog, vascular endothelial growth factor, retinoic acid-inducible gene I (RIG-I)-like receptor, Toll-like receptor and nucleotide oligomerization domain (NOD)-like receptor were significantly altered in NF639R cells. CONCLUSIONS: In clinical radiotherapy, repeat radiotherapy for short-term recurrence of breast cancer may result in enhanced radioresistance and promote malignant progression. Our research provided hints to understand the tumor resistance to radiotherapy de novo and recurrence with a worse prognosis following radiotherapy. AME Publishing Company 2021-04 /pmc/articles/PMC8106033/ /pubmed/33987326 http://dx.doi.org/10.21037/atm-20-4667 Text en 2021 Annals of Translational Medicine. All rights reserved. https://creativecommons.org/licenses/by-nc-nd/4.0/Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0 (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
spellingShingle | Original Article Qin, Feng Fan, Qiang Yu, Peter K. N. Almahi, Waleed Abdelbagi Kong, Peizhong Yang, Miaomiao Cao, Wei Nie, Lili Chen, Guodong Han, Wei Properties and gene expression profiling of acquired radioresistance in mouse breast cancer cells |
title | Properties and gene expression profiling of acquired radioresistance in mouse breast cancer cells |
title_full | Properties and gene expression profiling of acquired radioresistance in mouse breast cancer cells |
title_fullStr | Properties and gene expression profiling of acquired radioresistance in mouse breast cancer cells |
title_full_unstemmed | Properties and gene expression profiling of acquired radioresistance in mouse breast cancer cells |
title_short | Properties and gene expression profiling of acquired radioresistance in mouse breast cancer cells |
title_sort | properties and gene expression profiling of acquired radioresistance in mouse breast cancer cells |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8106033/ https://www.ncbi.nlm.nih.gov/pubmed/33987326 http://dx.doi.org/10.21037/atm-20-4667 |
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