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Qin F, Fan Q, Yu PKN, Almahi WA, Kong P, Yang M, Cao W, Nie L, Chen G, Han W. Properties and gene expression profiling of acquired radioresistance in mouse breast cancer cells. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:628. [PMID: 33987326 PMCID: PMC8106033 DOI: 10.21037/atm-20-4667] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
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.
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Affiliation(s)
- Feng Qin
- Anhui Province Key Laboratory of Medical Physics and Technology/Institute of Health and Medical Technology, Hefei Institutes of Physical Sciences, Chinese Academy of Sciences, Hefei, China.,Scinece Island Branch, Graduate School of USTC, Hefei, China.,Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, China.,Institute of Sericultural, Anhui Academy of Agricultural Sciences, Hefei, China
| | - Qiang Fan
- Anhui Province Key Laboratory of Medical Physics and Technology/Institute of Health and Medical Technology, Hefei Institutes of Physical Sciences, Chinese Academy of Sciences, Hefei, China.,Scinece Island Branch, Graduate School of USTC, Hefei, China
| | - Peter K N Yu
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China.,State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China
| | - Waleed Abdelbagi Almahi
- Anhui Province Key Laboratory of Medical Physics and Technology/Institute of Health and Medical Technology, Hefei Institutes of Physical Sciences, Chinese Academy of Sciences, Hefei, China.,Scinece Island Branch, Graduate School of USTC, Hefei, China
| | - Peizhong Kong
- Anhui Province Key Laboratory of Medical Physics and Technology/Institute of Health and Medical Technology, Hefei Institutes of Physical Sciences, Chinese Academy of Sciences, Hefei, China.,Scinece Island Branch, Graduate School of USTC, Hefei, China
| | - Miaomiao Yang
- Anhui Province Key Laboratory of Medical Physics and Technology/Institute of Health and Medical Technology, Hefei Institutes of Physical Sciences, Chinese Academy of Sciences, Hefei, China.,Scinece Island Branch, Graduate School of USTC, Hefei, China.,Clinical Pathology Center, The Fourth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wei Cao
- Anhui Province Key Laboratory of Medical Physics and Technology/Institute of Health and Medical Technology, Hefei Institutes of Physical Sciences, Chinese Academy of Sciences, Hefei, China.,Scinece Island Branch, Graduate School of USTC, Hefei, China
| | - Lili Nie
- Anhui Province Key Laboratory of Medical Physics and Technology/Institute of Health and Medical Technology, Hefei Institutes of Physical Sciences, Chinese Academy of Sciences, Hefei, China.,Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, China
| | - Guodong Chen
- Anhui Province Key Laboratory of Medical Physics and Technology/Institute of Health and Medical Technology, Hefei Institutes of Physical Sciences, Chinese Academy of Sciences, Hefei, China.,Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, China
| | - Wei Han
- Anhui Province Key Laboratory of Medical Physics and Technology/Institute of Health and Medical Technology, Hefei Institutes of Physical Sciences, Chinese Academy of Sciences, Hefei, China.,Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China
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Wang F, Ma X, Mao G, Zhang X, Kong Z. STAT3 enhances radiation-induced tumor migration, invasion and stem-like properties of bladder cancer. Mol Med Rep 2020; 23:87. [PMID: 33236137 PMCID: PMC7716396 DOI: 10.3892/mmr.2020.11728] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 10/21/2020] [Indexed: 01/17/2023] Open
Abstract
Bladder cancer (BCa) is the most common cancer of the human urinary system, and is associated with poor patient prognosis and a high recurrence rate. Cancer stem cells (CSCs) are the primary cause of tumor recurrence and metastasis, possessing self-renewal properties and resistance to radiation therapy. Our previous studies indicated that phosphorylated signal transduction and transcription activator 3 (STAT3) may be a potential biomarker to predict radiation tolerance and tumor recurrence in patients with BCa, following conventional radiotherapy. The aim of the present study was to investigate the underlying mechanism of STAT3 in the radio-resistance of BCa cells. It was found that fractionated irradiation promoted the activation of two STAT3-associated CSCs signaling pathways in BCa cells, namely suppressor of variegation 3–9 homolog 1/GATA binding protein 3/STAT3 and Janus kinase 2/STAT3. Surviving cells exhibited elevated migratory and invasive abilities, enhanced CSC-like characteristics and radio-resistance. Furthermore, knockdown of STAT3 expression or inhibition of STAT3 activation markedly decreased the self-renewal ability and tumorigenicity of radiation-resistant BCa cells. Kaplan-Meier analysis revealed that decreased STAT3 mRNA levels were associated with increased overall survival times in patients with BCa. Taken together, these data indicated that STAT3 may be an effective therapeutic target for inhibiting the progression, metastasis and recurrence of BCa in patients receiving radiotherapy.
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Affiliation(s)
- Fang Wang
- Department of Radiobiology, Institute of Radiation Medicine, Fudan University, Shanghai 200032, P.R. China
| | - Xiangli Ma
- Department of Radiobiology, Institute of Radiation Medicine, Fudan University, Shanghai 200032, P.R. China
| | - Guangmin Mao
- Department of Radiobiology, Institute of Radiation Medicine, Fudan University, Shanghai 200032, P.R. China
| | - Xiangyan Zhang
- Department of Radiobiology, Institute of Radiation Medicine, Fudan University, Shanghai 200032, P.R. China
| | - Zhaolu Kong
- Department of Radiobiology, Institute of Radiation Medicine, Fudan University, Shanghai 200032, P.R. China
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