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Tan Y, Zhou J, Liu K, Liu R, Zhou J, Wu Z, Li L, Zeng J, Feng X, Dong B, Du J. Novel prognostic biomarkers in nasopharyngeal carcinoma unveiled by mega-data bioinformatics analysis. Front Oncol 2024; 14:1354940. [PMID: 38854728 PMCID: PMC11157084 DOI: 10.3389/fonc.2024.1354940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/09/2024] [Indexed: 06/11/2024] Open
Abstract
Nasopharyngeal carcinoma (NPC) is commonly diagnosed at an advanced stage with a high incidence rate in Southeast Asia and Southeast China. However, the limited availability of NPC patient survival data in public databases has resulted in less rigorous studies examining the prediction of NPC survival through construction of Kaplan-Meier curves. These studies have primarily relied on small samples of NPC patients with progression-free survival (PFS) information or data from head and neck squamous cell carcinoma (HNSCC) studies almost without NPC patients. Thus, we coanalyzed RNA expression profiles in eleven datasets (46 normal (control) vs 160 tumor (NPC)) downloaded from the Gene Expression Omnibus (GEO) database and survival data provided by Jun Ma from Sun Yat-sen University. Then, differential analysis, gene ontology (GO) enrichment, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis and network analysis were performed using STRING database. After that, 2142 upregulated differentially expressed genes (DEGs) and 3857 downregulated DEGs were screened. Twenty-five of them were identified as hub genes, which were enriched in several pathways (cilium movement, extracellular matrix structural constituent, homologous recombination and cell cycle). Utilizing the comprehensive dataset we amassed from GEO database, we conducted a survival analysis of DEGs and subsequently constructed survival models. Seven DEGs (RASGRP2, MOCOS, TTC9, ARHGAP4, DPM3, CD37, and CD72) were identified and closely related to the survival prognosis of NPC. Finally, qRT-PCR, WB and IHC were performed to confirm the elevated expression of RASGRP2 and the decreased expression of TTC9, CD37, DPM3 and ARHGAP4, consistent with the DEG analysis. Conclusively, our findings provide insights into the novel prognostic biomarkers of NPC by mega-data bioinformatics analysis, which suggests that they may serve special targets in the treatment of NPC.
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Affiliation(s)
- Yishuai Tan
- Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, China
- West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Jiao Zhou
- Department of Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Kai Liu
- College of Biomedical Engineering, Sichuan University, Chengdu, China
| | - Ruowu Liu
- Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Jing Zhou
- Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Zhenru Wu
- Institute of Clinical Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Linke Li
- Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Jiaqi Zeng
- Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xuxian Feng
- Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Biao Dong
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Jintao Du
- Department of Otolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, China
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2
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Fu X, Wang Q, Du H, Hao H. CXCL8 and the peritoneal metastasis of ovarian and gastric cancer. Front Immunol 2023; 14:1159061. [PMID: 37377954 PMCID: PMC10291199 DOI: 10.3389/fimmu.2023.1159061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
CXCL8 is the most representative chemokine produced autocrine or paracrine by tumor cells, endothelial cells and lymphocytes. It can play a key role in normal tissues and tumors by activating PI3K-Akt, PLC, JAK-STAT, and other signaling pathways after combining with CXCR1/2. The incidence of peritoneal metastasis in ovarian and gastric cancer is extremely high. The structure of the peritoneum and various peritoneal-related cells supports the peritoneal metastasis of cancers, which readily produces a poor prognosis, low 5-year survival rate, and the death of patients. Studies show that CXCL8 is excessively secreted in a variety of cancers. Thus, this paper will further elaborate on the mechanism of CXCL8 and the peritoneal metastasis of ovarian and gastric cancer to provide a theoretical basis for the proposal of new methods for the prevention, diagnosis, and treatment of cancer peritoneal metastasis.
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Wang R, Zhang M, Hu Y, He J, Lin Q, Peng N. MiR-100-5p inhibits osteogenic differentiation of human bone mesenchymal stromal cells by targeting TMEM135. Hum Cell 2022; 35:1671-1683. [PMID: 35947339 DOI: 10.1007/s13577-022-00764-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 07/29/2022] [Indexed: 02/05/2023]
Abstract
Osteoporosis is a disorder characterized by reduced bone mass, disruption of bone microarchitecture, and a propensity to fracture. The osteogenic differentiation of human bone mesenchymal stromal cells (hBMSCs) exerts a critical effect on preventing bone loss during osteoporosis. Herein, the study recognized miR-100-5p as a deregulated miRNA during osteoporosis (upregulated) and BMSC osteogenic differentiation (downregulated). miR-100-5p was upregulated in osteoporosis patients-isolated BMSCs compared to non-osteoporosis trauma patients-isolated BMSCs. hBMSCs, overexpression inhibited hBMSC proliferation and osteogenic differentiation, whereas miR-100-5p inhibition exerted opposite effects. TMEM135 was downregulated in osteoporosis and upregulated in differentiated osteoblasts, as well as downregulated upon the overexpression of miR-100-5p. MiR-100-5p directly targeted and inhibited TMEM135. In hBMSCs, TMEM135 silencing also inhibited hBMSC osteogenic differentiation. When co-transfected to hBMSCs, antagomir-100-5p promoted, whereas TMEM135 silencing inhibited hBMSC osteogenic differentiation; TMEM135 knockdown dramatically attenuated the effects of miR-100-5p inhibition. Taken together, miR-100-5p forms a regulatory axis with TMEM135 by direct binding. The miR-100-5p/TMEM135 axis modulates hBMSC differentiation into osteoblast. Considering the critical effect of BMSC osteogenesis on osteoporosis, this axis might play a role in osteoporosis, and further in vivo and clinical investigations are required.
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Affiliation(s)
- Rui Wang
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Miao Zhang
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Ying Hu
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Juan He
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Qiao Lin
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Nianchun Peng
- Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China.
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4
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Li HL, Deng NH, He XS, Li YH. Small biomarkers with massive impacts: PI3K/AKT/mTOR signalling and microRNA crosstalk regulate nasopharyngeal carcinoma. Biomark Res 2022; 10:52. [PMID: 35883139 PMCID: PMC9327212 DOI: 10.1186/s40364-022-00397-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 07/06/2022] [Indexed: 12/15/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is one of the most common malignant tumours of the head and neck in Southeast Asia and southern China. The Phosphatidylinositol 3-kinase/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signalling pathway is involved in processes related to tumour initiation/progression, such as proliferation, apoptosis, metastasis, and drug resistance, and is closely related to the clinicopathological features of NPC. In addition, key genes involved in the PI3K/AKT/mTOR signalling pathway undergo many changes in NPC. More interestingly, a growing body of evidence suggests an interaction between this signalling pathway and microRNAs (miRNAs), a class of small noncoding RNAs. Therefore, in this review, we discuss the interactions between key components of the PI3K/AKT/mTOR signalling pathway and various miRNAs and their importance in NPC pathology and explore potential diagnostic biomarkers and therapeutic targets.
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Affiliation(s)
- Hai-Long Li
- Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Cancer Research Institute of Medical College, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, P.R. China
| | - Nian-Hua Deng
- Key Lab for Arteriosclerology of Hunan Province, International Joint Laboratory for Arteriosclerotic Disease Research of Hunan Province, Institute of Cardiovascular Disease, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, P.R. China
| | - Xiu-Sheng He
- Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Cancer Research Institute of Medical College, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, P.R. China.
| | - Yue-Hua Li
- Department of Medical Oncology, The First Affiliated Hospital, Hengyang Medical School, University of South China, 421001, Hengyang, P.R. China.
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5
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Lu Z, Zhou Y, Jing Q. Wnt5a-mediated autophagy promotes radiation resistance of nasopharyngeal carcinoma. J Cancer 2022; 13:2388-2396. [PMID: 35517407 PMCID: PMC9066197 DOI: 10.7150/jca.71526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 04/04/2022] [Indexed: 12/24/2022] Open
Abstract
Wnt signaling pathways and autophagy play an essential role in tumor progression. Canonical Wnt signaling pathways in radiation resistance have been studied in the past, but it remains unclear whether the noncanonical Wnt signaling pathways can affect tumor radiation resistance through protective autophagy. Nasopharyngeal carcinoma, a particular subtype of head and neck squamous cell carcinoma, relies on radiation therapy. In this study, we found that radioactive rays could significantly promote the expression of Wnt noncanonical signaling pathways ligands in nasopharyngeal carcinoma, among which Wnt5A was the most markedly altered. We have demonstrated that Wnt5a can reduce the radiation sensitivity of nasopharyngeal carcinoma in vitro and in vitro experiments. Meanwhile, we found much more greater autophagosomes in overexpressed-Wnt5A nasopharyngeal carcinoma cells by electron microscopy. Further mechanism exploration revealed that Beclin1 is the main target of Wnt5A, and knocking down Beclin1 can partially reduce Wnt5a-induced radiation resistance. By studying Wnt5A-mediated protective autophagy in promoting radiation resistance in nasopharyngeal carcinoma cells, we hope that the Wnt5A and Beclin1 can become effective targets for overcoming radiation resistance in the future.
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Affiliation(s)
- Zhaoyi Lu
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan 410008, People's Republic of China
| | - Yandan Zhou
- Changsha Aier Eye Hospital, Aier Eye Hospital Group, Changsha, Hunan,410000, People's Republic of China
| | - Qiancheng Jing
- The Affiliated Changsha Central Hospital, Department of Otolaryngology Head and Neck Surgery, Hengyang Medical School, University of South China. Changsha, Hunan, 410001, People's Republic of China
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Xu Q, Wang Y, Li X, Du Y, Li Y, Zhu J, Lin Y. miR-10a-5p Inhibits the Differentiation of Goat Intramuscular Preadipocytes by Targeting KLF8 in Goats. Front Mol Biosci 2021; 8:700078. [PMID: 34490349 PMCID: PMC8418121 DOI: 10.3389/fmolb.2021.700078] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 07/13/2021] [Indexed: 11/13/2022] Open
Abstract
Intramuscular fat contributes to the improvement of meat quality of goats. MicroRNAs (miRNAs) have been reported to regulate adipocyte differentiation and maturation. The aim of our study was to clarify whether miR-10a-5p regulates goat intramuscular preadipocyte (GIPC) differentiation and its direct downstream signaling pathway. GIPCs were isolated from longissimus dorsi, whose miR-10a-5p level was measured at different time point of differentiation induction. Adipogenic differentiation of the GIPCs was evaluated by Oil Red O and BODIPY staining, and the expression changes of adipogenic genes like ACC, ATGL, CEBPβ, PPARγ, etc. Related mechanisms were verified by qPCR, a bioinformatic analysis, a dual-luciferase reporter assay, overexpression, and siRNA transfection. Oil Red O and BODIPY staining both with adipogenic gene detection showed that miR-10a-5p suppressed the accumulation of lipid droplets in GIPCs and inhibited its differentiation. The dual-luciferase reporter assay experiment revealed that miR-10a-5p regulates GIPC differentiation by directly binding to KLF8 3’UTR to regulate its expression. Thus, the results indicated that miR-10a-5p inhibits GIPC differentiation by targeting KLF8 and supply a new target for fat deposition and meat quality improvement.
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Affiliation(s)
- Qing Xu
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Sichuan Province, Southwest Minzu University, Chengdu, China.,College of Animal Science and Veterinary, Southwest Minzu University, Chengdu, China
| | - Yong Wang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Sichuan Province, Southwest Minzu University, Chengdu, China.,College of Animal Science and Veterinary, Southwest Minzu University, Chengdu, China
| | - Xin Li
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Sichuan Province, Southwest Minzu University, Chengdu, China.,College of Animal Science and Veterinary, Southwest Minzu University, Chengdu, China
| | - Yu Du
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Sichuan Province, Southwest Minzu University, Chengdu, China
| | - Yanyan Li
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China.,College of Animal Science and Veterinary, Southwest Minzu University, Chengdu, China
| | - Jiangjiang Zhu
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Sichuan Province, Southwest Minzu University, Chengdu, China
| | - Yaqiu Lin
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Sichuan Province, Southwest Minzu University, Chengdu, China.,College of Animal Science and Veterinary, Southwest Minzu University, Chengdu, China
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7
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Sun Z, Wang X, Wang J, Wang J, Liu X, Huang R, Chen C, Deng M, Wang H, Han F. Key radioresistance regulation models and marker genes identified by integrated transcriptome analysis in nasopharyngeal carcinoma. Cancer Med 2021; 10:7404-7417. [PMID: 34432380 PMCID: PMC8525106 DOI: 10.1002/cam4.4228] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 08/07/2021] [Accepted: 08/08/2021] [Indexed: 12/24/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a malignancy that is endemic to China and Southeast Asia. Radiotherapy is the usual treatment, however, radioresistance remains a major reason for failure. This study aimed to find key radioresistance regulation models and marker genes of NPC and clarify the mechanism of NPC radioresistance by RNA sequencing and bioinformatics analysis of the differences in gene expression profiles between radioresistant and radiosensitive NPC tissues. A total of 21 NPC biopsy specimens with different radiosensitivity were analyzed by RNA sequencing. Differentially expressed genes in RNA sequencing data were identified using R software. The differentially expressed gene data derived from RNA sequencing as well as prior knowledge in the form of pathway databases were integrated to find sub‐networks of related genes. The data of RNA sequencing with the GSE48501 data from the GEO database were combined to further search for more reliable genes associated with radioresistance of NPC. Survival analyses using the Kaplan–Meier method based on the expression of the genes were conducted to facilitate the understanding of the clinical significance of the differentially expressed genes. RT‐qPCR was performed to validate the expression levels of the differentially expressed genes. We identified 1182 differentially expressed genes between radioresistant and radiosensitive NPC tissue samples. Compared to the radiosensitive group, 22 genes were significantly upregulated and 1160 genes were downregulated in the radioresistant group. In addition, 10 major NPC radiation resistance network models were identified through integration analysis with known NPC radiation resistance‐associated genes and mechanisms. Furthermore, we identified three core genes, DOCK4, MCM9, and POPDC3 among 12 common downregulated genes in the two datasets, which were validated by RT‐qPCR. The findings of this study provide new clues for clarifying the mechanism of NPC radioresistance, and further experimental studies of these core genes are warranted.
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Affiliation(s)
- Zhuang Sun
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.,State Key Laboratory of Oncology in South China, Guangzhou, People's Republic of China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China.,Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - Xiaohui Wang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.,State Key Laboratory of Oncology in South China, Guangzhou, People's Republic of China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China.,Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - Jingyun Wang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.,State Key Laboratory of Oncology in South China, Guangzhou, People's Republic of China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China.,Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - Jing Wang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.,State Key Laboratory of Oncology in South China, Guangzhou, People's Republic of China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China.,Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | | | - Runda Huang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.,State Key Laboratory of Oncology in South China, Guangzhou, People's Republic of China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China.,Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - Chunyan Chen
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.,State Key Laboratory of Oncology in South China, Guangzhou, People's Republic of China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China.,Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - Meiling Deng
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.,State Key Laboratory of Oncology in South China, Guangzhou, People's Republic of China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China.,Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - Hanyu Wang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.,State Key Laboratory of Oncology in South China, Guangzhou, People's Republic of China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China.,Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - Fei Han
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.,State Key Laboratory of Oncology in South China, Guangzhou, People's Republic of China.,Collaborative Innovation Center for Cancer Medicine, Guangzhou, People's Republic of China.,Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
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8
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Gui T, Yao C, Jia B, Shen K. Identification and analysis of genes associated with epithelial ovarian cancer by integrated bioinformatics methods. PLoS One 2021; 16:e0253136. [PMID: 34143800 PMCID: PMC8213194 DOI: 10.1371/journal.pone.0253136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 05/31/2021] [Indexed: 12/24/2022] Open
Abstract
Background Though considerable efforts have been made to improve the treatment of epithelial ovarian cancer (EOC), the prognosis of patients has remained poor. Identifying differentially expressed genes (DEGs) involved in EOC progression and exploiting them as novel biomarkers or therapeutic targets is of great value. Methods Overlapping DEGs were screened out from three independent gene expression omnibus (GEO) datasets and were subjected to Gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) pathway enrichment analyses. The protein-protein interactions (PPI) network of DEGs was constructed based on the STRING database. The expression of hub genes was validated in GEPIA and GEO. The relationship of hub genes expression with tumor stage and overall survival and progression-free survival of EOC patients was investigated using the cancer genome atlas data. Results A total of 306 DEGs were identified, including 265 up-regulated and 41 down-regulated. Through PPI network analysis, the top 20 genes were screened out, among which 4 hub genes, which were not researched in depth so far, were selected after literature retrieval, including CDC45, CDCA5, KIF4A, ESPL1. The four genes were up-regulated in EOC tissues compared with normal tissues, but their expression decreased gradually with the continuous progression of EOC. Survival curves illustrated that patients with a lower level of CDCA5 and ESPL1 had better overall survival and progression-free survival statistically. Conclusion Two hub genes, CDCA5 and ESPL1, identified as probably playing tumor-promotive roles, have great potential to be utilized as novel therapeutic targets for EOC treatment.
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Affiliation(s)
- Ting Gui
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Chenhe Yao
- Department of R&D Technology Center, Beijing Zhicheng Biomedical Technology Co, Ltd, Beijing, China
| | - Binghan Jia
- Department of R&D Technology Center, Beijing Zhicheng Biomedical Technology Co, Ltd, Beijing, China
| | - Keng Shen
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- * E-mail:
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9
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Liao C, Liu H, Luo X. The emerging roles of exosomal miRNAs in nasopharyngeal carcinoma. Am J Cancer Res 2021; 11:2508-2520. [PMID: 34249413 PMCID: PMC8263644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 04/13/2021] [Indexed: 06/13/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a unique subtype of head and neck cancer that is endemic to Southern China and Southeast Asia. Due to the concealed location and intrinsic invasiveness of this disease, majority of NPC patients are diagnosed with advanced stages (III and IV) and poor prognosis. Chemoradiotherapy resistance is a major problem for NPC patients, leading to incomplete local elimination, recurrence and metastasis. Therefore, it is of great significance to seek novel biomarkers and effective therapeutic regimen for clinical management of this deadly cancer. Exosomes are tiny membrane vesicles with a lipid bilayer secreted by most cells in the body, which are widely distributed in various body fluids. They are functionally active in different physiopathological process by carrying and transmitting important signal molecules such as miRNA, mRNA, protein, lipid, etc. Exosomal miRNAs play an important role in tumorigenesis and development of NPC. They are extensively involved in NPC cell proliferation, migration, invasion, neovascularization, radiotherapy resistance and the regulation of tumor immune microenvironment through intercellular communication and control of gene expression. Moreover, exosomal miRNAs can be used as valuable biomarkers for early diagnosis and therapeutic targets of NPC.
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Affiliation(s)
- Chaoliang Liao
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South UniversityChangsha 410078, Hunan, PR China
- Cancer Research Institute, School of Basic Medicine, Central South UniversityChangsha 410078, Hunan, PR China
- Key Laboratory of Carcinogenesis, Chinese Ministry of HealthChangsha 410078, Hunan, PR China
| | - Huiwen Liu
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South UniversityChangsha 410078, Hunan, PR China
- Cancer Research Institute, School of Basic Medicine, Central South UniversityChangsha 410078, Hunan, PR China
- Key Laboratory of Carcinogenesis, Chinese Ministry of HealthChangsha 410078, Hunan, PR China
| | - Xiangjian Luo
- Key Laboratory of Carcinogenesis and Invasion, Chinese Ministry of Education, Department of Radiology, Xiangya Hospital, Central South UniversityChangsha 410078, Hunan, PR China
- Cancer Research Institute, School of Basic Medicine, Central South UniversityChangsha 410078, Hunan, PR China
- Key Laboratory of Carcinogenesis, Chinese Ministry of HealthChangsha 410078, Hunan, PR China
- Molecular Imaging Research Center of Central South UniversityChangsha 410078, Hunan, PR China
- Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha 410078, Hunan, China
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10
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Zhang MX, Wang L, Zeng L, Tu ZW. LCN2 Is a Potential Biomarker for Radioresistance and Recurrence in Nasopharyngeal Carcinoma. Front Oncol 2021; 10:605777. [PMID: 33604288 PMCID: PMC7885862 DOI: 10.3389/fonc.2020.605777] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 12/15/2020] [Indexed: 12/24/2022] Open
Abstract
Background Radioresistance-induced local failure, which can result in residual or recurrent tumors, remains one of the major causes of treatment failure in nasopharyngeal carcinoma (NPC). Lipocalin 2 (LCN2) is known to play important roles in cancer initiation, progression, and treatment responses. However, its role in the radioresistance of NPC remains unclear. Methods Microarray data from the Gene Expression Omnibus (GEO) was screened for candidate biomarkers relating to the radioresistance of NPC. The expression of LCN2 in NPC cell lines was verified by quantitative real-time PCR (RT-qPCR) and western blotting. The effects of knockdown or overexpression of LCN2 on NPC radiosensitivity were examined using a soft agar colony formation assay and a γH2AX assay. LCN2 expression in NPC specimens was evaluated by immunohistochemistry. Survival outcomes were analyzed. A possible correlation between LCN2 and hypoxia-inducible factor 1-alpha (HIF-1A) was examined by western blotting and a tissue microarray. Results LCN2 was highly expressed in the radioresistant NPC cell line CNE2R. Knocking down LCN2 enhanced the radiosensitivity of NPC cells by impairing their ability to repair DNA damage or proliferate, while ectopic expression of LCN2 conferred additional radioresistance to NPC cells. Immunohistochemical analysis of 100 NPC specimens revealed that LCN2 expression was significantly upregulated in radioresistant NPC tissues and was associated with NPC recurrence. Furthermore, a significant correlation between the expression of LCN2 and HIF-1A was detected. Conclusion LCN2 is associated with radioresistance and recurrence in NPC and may facilitate the development of a radioresistant phenotype through interacting with HIF-1A. Our data indicate that LCN2 is a promising target for predicting and overcoming radioresistance in NPC.
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Affiliation(s)
- Meng-Xia Zhang
- State Key Laboratory of Oncology in South China, Department of Nasopharyngeal Carcinoma, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Li Wang
- Department of Radiotherapy, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Lei Zeng
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zi-Wei Tu
- NHC Key Laboratory of Personalized Diagnosis and Treatment of Nasopharyngeal Carcinoma (Jiangxi Cancer Hospital of Nanchang University), Nanchang, China
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11
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He W, Jin H, Liu Q, Sun Q. miR‑182‑5p contributes to radioresistance in nasopharyngeal carcinoma by regulating BNIP3 expression. Mol Med Rep 2020; 23:130. [PMID: 33313953 PMCID: PMC7751459 DOI: 10.3892/mmr.2020.11769] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 11/04/2020] [Indexed: 12/13/2022] Open
Abstract
Radioresistance is the primary roadblock limiting the success of treatment of nasopharyngeal carcinoma (NPC). microRNA (miRNA/miR)-182-5p has been reported to affect the sensitivity of cancer cells to irradiation; however, the role of miR-182-5p in NPC has not been assessed. The aim of the present study was to investigate the contribution of miR-182-5p to the radioresistance of NPC cells. The key mRNA and miRNA involved in NPC radioresistance were identified using bioinformatics analysis. The two cell lines used in the present study were 5–8F cells (radio-sensitive) and 5–8F-R cells (radioresistant). A dual-luciferase reporter assay system was used to validate the binding between BCL2/adenovirus E1B 19 kDa protein-interacting protein 3 (BNIP3) mRNA and miR-182-5p. Reverse transcription-quantitative PCR and western blotting were used to determine the RNA and protein expression levels. To obtain a deeper insight into the effects of the BNIP3/miR-182-5p axis on NPC radioresistance, Cell Counting Kit-8, wound healing, Transwell invasion and colony formation assays, as well as flow cytometry analysis were performed. The results showed that miR-182-5p and BNIP3 were up and downregulated, respectively, in 5–8F-R cells. BNIP3 was also confirmed to be the target of miR-182-5p, and miR-182-5p reversed the inhibitory effect of BNIP3 in 5–8F-R cells. The cellular experiments showed that upregulation of BNIP3 not only inhibited cell proliferation, viability, invasion and migration, but also promoted the apoptosis of 5–8F-R cells. However, the effects of BNIP3 were attenuated by the simultaneous upregulation of miR-182-5p. Thus, through downregulation of BNIP3, miR-182-5p contributed to radiation resistance of NPC cells.
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Affiliation(s)
- Wei He
- Department of Oncology, Wuhan Puren Hospital, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
| | - Hongyan Jin
- Department of Oncology, Wuhan Puren Hospital, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
| | - Qian Liu
- Department of Oncology, Wuhan Puren Hospital, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, Hubei 430081, P.R. China
| | - Quanxin Sun
- Department of Oncology, The Third People's Hospital of Hubei Province Affiliated to Jianghan University, Wuhan, Hubei 430033, P.R. China
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12
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Qi YF, Yang Y, Zhang Y, Liu S, Luo B, Liu W. Down regulation of lactotransferrin enhanced radio-sensitivity of nasopharyngeal carcinoma. Comput Biol Chem 2020; 90:107426. [PMID: 33352501 DOI: 10.1016/j.compbiolchem.2020.107426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 11/24/2020] [Accepted: 11/29/2020] [Indexed: 01/09/2023]
Abstract
INTRODUCTION It is reported that LTF had a radiation resistance effect, and its expression in nasopharyngeal carcinoma (NPC) was significantly down-regulated. However, the mechanism of down-regulated LTF affecting the sensitivity of radiotherapy has remained elusive. METHODS We re-analyzed the microarray data GSE36972 and GSE48503 to find differentially expressed genes (DEGs) in NPC cell line 5-8 F transfected with LTF or vector control, and the DEGs between radio-resistant and radio-sensitive NPC cell lines. Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment and protein-protein interaction network (PPI) analysis of DEGs were performed to obtain the node genes. The target genes of miR-214 were also predicted to complement the mechanism associated with radiotherapy resistance because it could directly target LTF. RESULTS This study identified 1190 and 1279 DEGs, respectively. GO and KEGG analysis showed that apoptotic process and proliferation, PI3K-Akt signaling pathway were significantly enriched pathways. Four nodes (DUSP1, PPARGC1A, FOS and SMARCA1) associated with LTF were screened. And 42 target genes of miR-214 were cross-linked to radiotherapy sensitivity. CONCLUSIONS The present study demonstrates the possible molecular mechanism that the down-regulated LTF enhances the radiosensitivity of NPC cells through interaction with DUSP1, PPARGC1A, FOS and SMARCA1, and miR-214 as its superior negative regulator may play a role in regulating the radiotherapy effect.
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Affiliation(s)
- Yi-Fan Qi
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, 308 Ningxia Road, Qingdao, 266021, China; Qingdao Shinan District Center for Disease Control and Prevention, 90 Xuzhou Road, Qingdao, 266021, China.
| | - Yang Yang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, 308 Ningxia Road, Qingdao, 266021, China.
| | - Yan Zhang
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, 308 Ningxia Road, Qingdao, 266021, China.
| | - Shuzhen Liu
- Department of Blood Transfusion, The Affiliated Hospital of Qingdao University, 19 Jiangsu Road, Qingdao, 266021, China.
| | - Bing Luo
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, 308 Ningxia Road, Qingdao, 266021, China.
| | - Wen Liu
- Department of Pathogenic Biology, School of Basic Medicine, Qingdao University, 308 Ningxia Road, Qingdao, 266021, China.
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13
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Zhao H, Chang A, Ling J, Zhou W, Ye H, Zhuo X. Construction and analysis of miRNA-mRNA regulatory networks in the radioresistance of nasopharyngeal carcinoma. 3 Biotech 2020; 10:511. [PMID: 33184596 DOI: 10.1007/s13205-020-02504-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 10/24/2020] [Indexed: 12/12/2022] Open
Abstract
Radiotherapy has been the major treatment strategy for nasopharyngeal carcinoma (NPC), while the occurrence of radioresistance may lead to cancer recurrence or progression. This study aimed to identify the key microRNAs (miRNAs) and their target genes in the development of NPC radioresistance. Public microarray data were searched and analyzed to screen the differentially expressed miRNAs (DEMs) and genes (DEGs) between radioresistant and radiosensitive NPC samples. MiRNA-mRNA networks were constructed. As a result, 5 DEMs and 195 DEGs were screened out. The DEGs were enriched in various signaling pathways, such as Cytokine-cytokine receptor interaction, Jak-STAT signaling pathway, and Toll-like receptor signaling pathway. Several hub genes, such as IGF2, OLA1, BBS10, MMP9, and BBS7 were identified. A regulatory miRNA-mRNA network containing 87 miRNA-mRNA pairs was constructed. Then, 14 key miRNA-mRNA pairs that contained the hub genes were further filtered out. In the networks, miR-203a-3p had the largest number of target genes. Afterwards, the candidate pairs (miR-203a-3p/BTK and miR-484/OLA1) have been verified by a qRT-PCR assay. In summary, we identified several miRNAs and hub genes via big data screening. A total of 87 miRNA-mRNA pairs (including 14 key pairs) were predicted to play a crucial role in the development of NPC radioresistance. These data provide a bioinformatics basis for further exploring the molecular mechanism of radiotherapy resistance in NPC. Future studies are needed to validate the results.
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14
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miRNA as promising theragnostic biomarkers for predicting radioresistance in cancer: A systematic review and meta-analysis. Crit Rev Oncol Hematol 2020; 157:103183. [PMID: 33310279 DOI: 10.1016/j.critrevonc.2020.103183] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 11/17/2020] [Accepted: 11/23/2020] [Indexed: 02/08/2023] Open
Abstract
Radioresistance remains as an obstacle in cancer treatment. This systematic review and meta-analysis aimed to evaluate the association between the expression of miRNAs and responses to radiotherapy and the prognosis of different tumors. In total, 77 miRNAs in 19 cancer types were studied, in which 24 miRNAs were upregulated and 58 miRNAs were downregulated in cancer patients. Five miRNAs were differentially expressed. Moreover, 75 miRNAs were found to be related to radioresistance, while 5 were observed to be related to radiosensitivity. The pooled HR and 95 % confidence interval for the combined studies was 1.135 (0.819-1.574; P-value = 0.4). The HR values of the subgroup analysis for miR-21 (HR = 2.344; 95 % CI: 1.927-2.850; P-value = 0.000), nasopharyngeal carcinoma (HR = 0.448; 95 % CI: 0.265-0.760; P = 0.003) and breast cancer (HR = 1.131; 95 % CI: 0.311-4.109; P = .85) were obtained. Our results highlighted that across the published literature, miRNAs can modulate tumor radioresistance or sensitivity by affecting radiation-related signaling pathways. It seems that miRNAs could be considered as a theragnostic biomarker to predict and monitor clinical response to radiotherapy. Thus, the prediction of radioresistance in malignant patients will improve radiotherapy outcomes and radiotherapeutic resistance.
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15
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Ruffin M, Mercier J, Calmel C, Mésinèle J, Bigot J, Sutanto EN, Kicic A, Corvol H, Guillot L. Update on SLC6A14 in lung and gastrointestinal physiology and physiopathology: focus on cystic fibrosis. Cell Mol Life Sci 2020; 77:3311-3323. [PMID: 32166393 PMCID: PMC7426304 DOI: 10.1007/s00018-020-03487-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/24/2020] [Accepted: 02/17/2020] [Indexed: 12/17/2022]
Abstract
The solute carrier family 6 member 14 (SLC6A14) protein imports and concentrates all neutral amino acids as well as the two cationic acids lysine and arginine into the cytoplasm of different cell types. Primarily described as involved in several cancer and colonic diseases physiopathological mechanisms, the SLC6A14 gene has been more recently identified as a genetic modifier of cystic fibrosis (CF) disease severity. It was indeed shown to have a pleiotropic effect, modulating meconium ileus occurrence, lung disease severity, and precocity of P. aeruginosa airway infection. The biological mechanisms explaining the impact of SLC6A14 on intestinal and lung phenotypes of CF patients are starting to be elucidated. This review focuses on SLC6A14 in lung and gastrointestinal physiology and physiopathology, especially its involvement in the pathophysiology of CF disease.
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Affiliation(s)
- Manon Ruffin
- Sorbonne Université, INSERM UMR S 938, Centre de Recherche Saint‑Antoine (CRSA), Paris, France
| | - Julia Mercier
- Sorbonne Université, INSERM UMR S 938, Centre de Recherche Saint‑Antoine (CRSA), Paris, France
| | - Claire Calmel
- Sorbonne Université, INSERM UMR S 938, Centre de Recherche Saint‑Antoine (CRSA), Paris, France
| | - Julie Mésinèle
- Sorbonne Université, INSERM UMR S 938, Centre de Recherche Saint‑Antoine (CRSA), Paris, France
| | - Jeanne Bigot
- Sorbonne Université, INSERM UMR S 938, Centre de Recherche Saint‑Antoine (CRSA), Paris, France
| | - Erika N Sutanto
- Telethon Kids Institute, University of Western Australia, Nedlands, WA, Australia
- School of Public Health, Curtin University, Bentley, WA, Australia
| | - Anthony Kicic
- Telethon Kids Institute, University of Western Australia, Nedlands, WA, Australia
- School of Public Health, Curtin University, Bentley, WA, Australia
- Centre for Cell Therapy and Regenerative Medicine, Medical School, The University of Western Australia, Nedlands, WA, Australia
- Department of Respiratory and Sleep Medicine, Perth Children's Hospital, Nedlands, WA, Australia
| | - Harriet Corvol
- Sorbonne Université, INSERM UMR S 938, Centre de Recherche Saint‑Antoine (CRSA), Paris, France.
- Pneumologie Pédiatrique, APHP, Hôpital Trousseau, Paris, France.
| | - Loic Guillot
- Sorbonne Université, INSERM UMR S 938, Centre de Recherche Saint‑Antoine (CRSA), Paris, France
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16
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He JJ, Li Z, Rong ZX, Gao J, Mu Y, Guan YD, Ren XX, Zi YY, Liu LY, Fan Q, Zhou M, Duan YM, Zhou Q, Deng YZ, Sun LQ. m 6A Reader YTHDC2 Promotes Radiotherapy Resistance of Nasopharyngeal Carcinoma via Activating IGF1R/AKT/S6 Signaling Axis. Front Oncol 2020; 10:1166. [PMID: 32850334 PMCID: PMC7411471 DOI: 10.3389/fonc.2020.01166] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 06/09/2020] [Indexed: 12/24/2022] Open
Abstract
N6-methyladenosine (m6A) modification has been reported as a critical regulator of gene transcript expression. Although m6A modification plays important roles in tumor development, its role in therapeutic resistance remains unknown. In this study, we aimed to examine the expression level of m6A-modification related proteins and elucidate the effect of m6A-related proteins on radiation response in nasopharyngeal carcinoma (NPC). Among the genes that participated in m6A modification, YTHDC2, a m6A reader, was found to be consistently highly expressed in radioresistant NPC cells. Knocking down of YTHDC2 expression in radioresistant NPC cells improved the therapeutic effect of radiotherapy in vitro and in vivo, whereas overexpression of YTHDC2 in radiosensitive NPC cells exerted an opposite effect. Bioinformatics and mechanistic studies revealed that YTHDC2 could physically bound to insulin-like growth factor 1 receptor (IGF1R) messenger RNA and promoted translation initiation of IGF1R mRNA, which in turn activated the IGF1R-AKT/S6 signaling pathway. Thus, the present study suggests that YTHDC2 promotes radiotherapy resistance of NPC cells by activating the IGF1R/ATK/S6 signaling axis and may serve as a potential therapeutic target in radiosensitization of NPC cells.
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Affiliation(s)
- Jun-Ju He
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Zhi Li
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Zhuo-Xian Rong
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Jie Gao
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Yun Mu
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Yi-Di Guan
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Xin-Xin Ren
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Yu-Yuan Zi
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Li-Yu Liu
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Qi Fan
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Ming Zhou
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China
| | - Yu-Mei Duan
- Cancer Research Institute and School of Basic Medical Sciences, Central South University, Changsha, China
| | - Qin Zhou
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Yue-Zhen Deng
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Lun-Quan Sun
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China.,Hunan International Science and Technology Collaboration Base of Precision Medicine for Cancer, Changsha, China.,National Clinical Research Center for Gerontology, Changsha, China
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17
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Lin W, Huang Z, Xu Y, Chen X, Chen T, Ye Y, Ding J, Chen Z, Chen L, Qiu X, Qiu S. A three-lncRNA signature predicts clinical outcomes in low-grade glioma patients after radiotherapy. Aging (Albany NY) 2020; 12:9188-9204. [PMID: 32453707 PMCID: PMC7288909 DOI: 10.18632/aging.103189] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 04/17/2020] [Indexed: 12/20/2022]
Abstract
Although radiation therapy (RT) plays a critical role in the treatment of low-grade glioma (LGG), many patients suffer from adverse effects without experiencing survival benefits. In various carcinomas, long non-coding RNAs (lncRNAs) contribute to pathogenic processes, including tumorigenesis, metastasis, chemoresistance, and radioresistance. Currently, the role of lncRNAs in the radiosensitivity of LGG is largely unknown. Here, we downloaded clinical data for 167 LGG patients from The Cancer Genome Atlas database and divided them between radiosensitive and radioresistant groups based on their clinical outcomes after receiving radiotherapy. We identified 37 lncRNAs that were differentially expressed (DElncRNAs) between the groups. Functional enrichment analysis revealed that their potential target mRNAs were mainly enriched in the PI3K-Akt and MAPK signaling pathways and in DNA damage response. Kaplan-Meier survival analysis revealed that increased expression of six lncRNAs was significantly associated with radiosensitivity. We then developed a risk signature based on three of the DElncRNAs that served as an independent biomarker for predicting LGG patient outcomes after radiotherapy. In vitro experiments further validated the biological function of these lncRNAs on low-grade glioma radiation response.
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Affiliation(s)
- Wanzun Lin
- Department of Radiation Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Zongwei Huang
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
| | - Yanyan Xu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaochuan Chen
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
| | - Ting Chen
- Department of Chemotherapy, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yuling Ye
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
| | - Jianming Ding
- Department of Radiation Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Zhangjie Chen
- Department of Chemotherapy, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Long Chen
- Division of Neurocritical Care, Huashan Hospital, Fudan University, Shanghai, China
| | - Xianxin Qiu
- Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China
| | - Sufang Qiu
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
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18
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HDAC7 promotes the oncogenicity of nasopharyngeal carcinoma cells by miR-4465-EphA2 signaling axis. Cell Death Dis 2020; 11:322. [PMID: 32376822 PMCID: PMC7203158 DOI: 10.1038/s41419-020-2521-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 12/29/2022]
Abstract
HDAC7 plays a crucial role in cancers, and is the main drug target of several HDAC inhibitors. However, the role and mechanism of HDAC7 in nasopharyngeal carcinoma (NPC) are still unclear. In this study, we observed that HDAC7 was significantly upregulated in the NPC tissues relative to normal nasopharyngeal mucosa (NNM) tissues, HDAC7 expression levels were positively correlated with NPC progression and negatively correlated with patient prognosis, and HDAC7 knockdown dramatically inhibited the in vitro proliferation, migration, and invasion of NPC cells, and the growth of NPC xenografts in mice, indicating the HDAC7 promotes the oncogenicity of NPC. Mechanistically, HDAC7 promoted the in vitro proliferation, migration, and invasion of NPC cells by upregulating EphA2, in which miR-4465 mediated HDAC7-regulating EphA2, a direct target gene of miR-4465. We further showed that miR-4465 was significantly downregulated in the NPC tissues relative to NNM tissues, and inhibited the in vitro proliferation, migration, and invasion of NPC cells by targeting EphA2 expression. Moreover, we observed that the expressions of HDAC7, miR-4465, and EphA2 in NPC tissues were correlated. The results suggest that HDAC7 promotes the oncogenicity of NPC by downregulating miR-4465 and subsequently upregulating EphA2, highlighting HDAC7 as a potential therapeutic target for NPC.
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19
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Tian Y, Tang L, Yi P, Pan Q, Han Y, Shi Y, Rao S, Tan S, Xia L, Lin J, Oyang L, Tang Y, Liang J, Luo X, Liao Q, Wang H, Zhou Y. MiRNAs in Radiotherapy Resistance of Nasopharyngeal Carcinoma. J Cancer 2020; 11:3976-3985. [PMID: 32328201 PMCID: PMC7171507 DOI: 10.7150/jca.42734] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/27/2020] [Indexed: 02/06/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is one of the most common malignant tumors of the head and neck in Southeast Asia and southern China. Although the comprehensive treatment based on intensity-modulated radiation therapy improves outcomes, the five-year survival rate of NPC patients is low, and the recurrence remains high. Radiotherapy resistance is the main cause of poor prognosis in NPC patients. MicroRNAs (miRNAs) are a class of endogenous non-coding RNAs regulating various biological functions in eukaryotes. These miRNAs can regulate the development and progression of nasopharyngeal carcinoma by affecting the proliferation, apoptosis, movement, invasion and metastasis of NPC cells. The abnormal expression of miRNAs is closely related to radiotherapy sensitivity and prognosis of NPC patients, which can affect the transmission of related signaling pathways by regulating the expression of tumor suppressor genes and / or oncogenes, and therefore participate in radiotherapy resistance in nasopharyngeal carcinoma. Here, we review the mechanisms by which miRNAs may be involved in the radiotherapy resistance of nasopharyngeal carcinoma.
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Affiliation(s)
- Yutong Tian
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China.,University of South China, Hengyang, 421001, Hunan, China
| | - Lu Tang
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China.,University of South China, Hengyang, 421001, Hunan, China
| | - Pin Yi
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China.,University of South China, Hengyang, 421001, Hunan, China
| | - Qing Pan
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China.,University of South China, Hengyang, 421001, Hunan, China
| | - Yaqian Han
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Yingrui Shi
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Shan Rao
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Shiming Tan
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Longzheng Xia
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Jinguan Lin
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Linda Oyang
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Yanyan Tang
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Jiaxin Liang
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Xia Luo
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Qianjin Liao
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Hui Wang
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
| | - Yujuan Zhou
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Key Laboratory of Translational Radiation Oncology, Hunan Province, 283 Tongzipo Road, Changsha 410013, Hunan, China
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20
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Li K, Zhu X, Li L, Ning R, Liang Z, Zeng F, Su F, Huang S, Yang X, Qu S. Identification of non-invasive biomarkers for predicting the radiosensitivity of nasopharyngeal carcinoma from serum microRNAs. Sci Rep 2020; 10:5161. [PMID: 32198434 PMCID: PMC7083955 DOI: 10.1038/s41598-020-61958-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 03/05/2020] [Indexed: 12/23/2022] Open
Abstract
Serum microRNAs (miRNAs) have been reported as novel biomarkers for various diseases. But circulating biomarkers for predicting the radiosensitivity of nasopharyngeal carcinoma (NPC) have not been used in clinical practice. To screen out of differently expressed serum miRNAs from NPC patients with different radiosensitivity may be helpful for its individual therapy. NPC patients with different radiosensitivity were enrolled according to the inclusion and exclusion criteria. RNA was isolated from serum of these NPC patients before treatment. We investigated the differential miRNA expression profiles using microarray test (GSE139164), and the candidate miRNAs were validated by reverse transcription-quantitative real time polymerase chain reaction (RT-qPCR) experiments. Receiver operating characteristic (ROC) analysis has been applied to estimate the diagnostic value. In this study, 37 serum-specific miRNAs were screened out from 12 NPC patients with different radiosensitivity by microarray test. Furthermore, RT-qPCR analysis confirmed that hsa-miR-1281 and hsa-miR-6732-3p were significantly downregulated in the serum of radioresistant NPC patients (P < 0.05), which was consistent with the results of microarray test. ROC curves demonstrated that the AUC for hsa-miR-1281 was 0.750 (95% CI: 0.574-0.926, SE 87.5%, SP 57.1%). While the AUC for hsa-miR-6732-3p was 0.696 (95% CI: 0.507-0.886, SE 56.3%, SP 78.6%). These results suggested that hsa-miR-1281 and hsa-miR-6732-3p in serum might serve as potential biomarkers for predicting the radiosensitivity of NPC.
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Affiliation(s)
- Kaiguo Li
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University, Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, P.R. China
| | - Xiaodong Zhu
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University, Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, P.R. China
- Key Laboratory of High-Incidence-Tumor Prevention & Treatment (Guangxi Medical University), Ministry of Education, Nanning, Guangxi, 530021, P.R. China
| | - Ling Li
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University, Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, P.R. China
| | - Ruiling Ning
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University, Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, P.R. China
| | - Zhongguo Liang
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University, Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, P.R. China
| | - Fanyan Zeng
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University, Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, P.R. China
| | - Fang Su
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University, Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, P.R. China
| | - Shiting Huang
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University, Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, P.R. China
| | - Xiaohui Yang
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University, Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, P.R. China
| | - Song Qu
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University, Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, P.R. China.
- Key Laboratory of High-Incidence-Tumor Prevention & Treatment (Guangxi Medical University), Ministry of Education, Nanning, Guangxi, 530021, P.R. China.
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Huang W, Liu J, Hu S, Shi G, Yong Z, Li J, Qiu J, Cao Y, Yuan L. miR-181a Upregulation Promotes Radioresistance of Nasopharyngeal Carcinoma by Targeting RKIP. Onco Targets Ther 2019; 12:10873-10884. [PMID: 31849491 PMCID: PMC6912017 DOI: 10.2147/ott.s228800] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 11/18/2019] [Indexed: 12/13/2022] Open
Abstract
Background Radioresistance is the leading cause of treatment failure for nasopharyngeal carcinoma (NPC). Therefore, screening the critical regulators in radioresistance and revealing the underlying mechanisms is imperative for improvement of therapeutical efficacy in NPC. Materials and methods Our previous study has proved that miR-181a may serve as a pro-radioresistant miRNA. In this study, we explored the expression of miR-181a in NPC, especially in radioresistant NPC samples, by qPCR. Moreover, the clinical significance of miR-181a level was also analyzed. Furthermore, the functions of miR-181a, both in vitro and in vivo, were detected via a serial of assays such as CCK-8, plate clone survival, apoptosis, and xenograft tumor model. The downstream target of miR-181a was also validated by dual luciferase reporter assay and the roles of miR-181a’s target in the regulation of NPC radioresistance were investigated. Results The results revealed that miR-181a was significantly upregulated in NPC, especially in radioresistant NPC. MiR-181a level is positively correlated to lymph node metastasis and advanced TNM stages and negatively associated with overall survival rate in NPC. Ectopic expression of miR-181a in radiosensitive NPC cells, or overexpression of miR-181a inhibitor in radioresistant NPC cells, could enhance or impair the radioresistance of NPC cells supported by the results from both in vitro and in vivo, respectively. Mechanistically, dual luciferase report assay indicated that miR-181a could directly target RKIP. Moreover, both in vitro and in vivo experimental outcomes indicated that RKIP restoration and knockdown could antagonize the effects of miR-181a and miR-181a inhibitor in the regulation of NPC radioresistance. Conclusion Collectively, the findings of this study proved that miR-181a is upregulated and promotes radioresistance by targeting RKIP in NPC. Targeting miR-181a/RKIP axis may be a valid path for reinforcing radiosensitivity and eventually improving the outcomes of clinical treatment in NPC.
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Affiliation(s)
- Wei Huang
- Department of Nuclear Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.,Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Jie Liu
- Department of Pathology, Changsha Central Hospital, Changsha, Hunan, People's Republic of China
| | - Shanbiao Hu
- Department of Urological Organ Transplantation, The Second Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Guangqing Shi
- Department of Nuclear Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Zhong Yong
- Department of Nuclear Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Jian Li
- Department of Nuclear Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Juan Qiu
- Department of Nuclear Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Yan Cao
- Department of Nuclear Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Li Yuan
- Department of Nuclear Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
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Liu G, Zeng X, Wu B, Zhao J, Pan Y. RNA-Seq analysis of peripheral blood mononuclear cells reveals unique transcriptional signatures associated with radiotherapy response of nasopharyngeal carcinoma and prognosis of head and neck cancer. Cancer Biol Ther 2019; 21:139-146. [PMID: 31698994 DOI: 10.1080/15384047.2019.1670521] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Radiotherapy is the main treatment for nasopharyngeal carcinoma (NPC); however, radioresistance limits the therapeutic efficacy and prognosis of patients with NPC. Here, we plan to identify the genes involved in radiotherapy response. Peripheral blood mononuclear cells (PBMC) from three paired NPC patients with pre-radiotherapy and post-radiotherapy were extracted. Next-generation deep sequencing was then performed to identify the PBMCs transcripts profiles in response to radiotherapy. Data of gene chip GSE48501 was obtained from Gene Expression Omnibus (GEO) database. The gene integration of differentially expressed genes identified from RNA-Seq data and gene chip was performed using "RobustRankAggreg" package. RNA-Seq data from 44 normal and 519 Head and neck squamous cell carcinoma (HNSCC) tissues (downloaded from TCGA) was integrated into the analysis to further support our study. Cox regression was used to identify risk factors impacting survival. Total of 45 genes were identified to be associated with radiotherapy response. Significantly enriched Gene Ontology (GO) terms and pathways were enriched. Univariate and multivariate analysis suggested the dysregulated genes, CHAC2, CLEC9A, GNG10, JCHAIN, KLRB1, NOG, OLR1, PRELID2, SYT1, VWCE, ZNF443 were associated with survival in HNSCC patients. Our data provide an overview of the profiles of radiotherapy-associated genes, which will facilitate future investigations into the function of radiotherapy resistance.
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Affiliation(s)
- Guohong Liu
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Xiaojiao Zeng
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Balu Wu
- Department of Hematology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Jin Zhao
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Yunbao Pan
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
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Lin Z, He H, Wang M, Liang J. MicroRNA-130a controls bone marrow mesenchymal stem cell differentiation towards the osteoblastic and adipogenic fate. Cell Prolif 2019; 52:e12688. [PMID: 31557368 PMCID: PMC6869834 DOI: 10.1111/cpr.12688] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/10/2019] [Accepted: 06/13/2019] [Indexed: 12/13/2022] Open
Abstract
Objectives With age, bone marrow mesenchymal stem cells (BMSC) have reduced ability of differentiating into osteoblasts but have increased ability of differentiating into adipocytes which leads to age‐related bone loss. MicroRNAs (miRNAs) play major roles in regulating BMSC differentiation. This paper explored the role of miRNAs in regulating BMSC differentiation swift fate in age‐related osteoporosis. Material and methods Mice and human BMSC were isolated from bone marrow, whose miR‐130a level was measured. The abilities of BMSC differentiate into osteoblast or fat cell under the transfected with agomiR‐130a or antagomiR‐130a were analysed by the level of ALP, osteocalcin, Runx2, osterix or peroxisome proliferator‐activated receptorγ (PPARγ), Fabp4. Related mechanism was verified via qT‐PCR, Western blotting (WB) and siRNA transfection. Animal phenotype intravenous injection with agomiR‐130a or agomiR‐NC was explored by Micro‐CT, immunochemistry and calcein double‐labelling. Results MiR‐130a was dramatically decreased in BMSC of advanced subjects. Overexpression of miR‐130a increased osteogenic differentiation of BMSC and attenuated adipogenic differentiation in BMSC, conversely, Inhibition of miR‐130a reduced osteogenic differentiation and facilitated lipid droplet formation. Consistently, overexpression of miR‐130a in elderly mice dropped off the bone loss. Furthermore, the protein levels of Smad regulatory factors 2 (Smurf2) and PPARγ were regulated by miR‐130a with an negative effect through directly combining the 3'UTR of Smurf2 and PPARγ. Conclusions The results indicated that miR‐130a promotes osteoblastic differentiation of BMSC by negatively regulating Smurf2 expression and suppresses adipogenic differentiation of BMSC by targeting the PPARγ, and supply a new target for clinical therapy of age‐related bone loss.
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Affiliation(s)
- Zhangyuan Lin
- Department of Orthopedic, Xiangya Hospital of Central South University, Changsha, China
| | - Hongbo He
- Department of Orthopedic, Xiangya Hospital of Central South University, Changsha, China
| | - Min Wang
- Department of Endocrinology, Xiangya Hospital of Central South University, Changsha, China
| | - Jieyu Liang
- Department of Orthopedic, Xiangya Hospital of Central South University, Changsha, China
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Xu S, Wu W, Huang H, Huang R, Xie L, Su A, Liu S, Zheng R, Yuan Y, Zheng H, Sun X, Xiong X, Liu X. The p53/miRNAs/Ccna2 pathway serves as a novel regulator of cellular senescence: Complement of the canonical p53/p21 pathway. Aging Cell 2019; 18:e12918. [PMID: 30848072 PMCID: PMC6516184 DOI: 10.1111/acel.12918] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 10/27/2018] [Accepted: 11/25/2018] [Indexed: 12/13/2022] Open
Abstract
Aging is a multifactorial process characterized by the progressive deterioration of physiological functions. Among the multiple molecular mechanisms, microRNAs (miRNAs) have increasingly been implicated in the regulation of Aging process. However, the contribution of miRNAs to physiological Aging and the underlying mechanisms remain elusive. We herein performed high-throughput analysis using miRNA and mRNA microarray in the physiological Aging mouse, attempted to deepen into the understanding of the effects of miRNAs on Aging process at the "network" level. The data showed that various p53 responsive miRNAs, including miR-124, miR-34a and miR-29a/b/c, were up-regulated in Aging mouse compared with that in Young mouse. Further investigation unraveled that similar as miR-34a and miR-29, miR-124 significantly promoted cellular senescence. As expected, mRNA microarray and gene co-expression network analysis unveiled that the most down-regulated mRNAs were enriched in the regulatory pathways of cell proliferation. Fascinatingly, among these down-regulated mRNAs, Ccna2 stood out as a common target of several p53 responsive miRNAs (miR-124 and miR-29), which functioned as the antagonist of p21 in cell cycle regulation. Silencing of Ccna2 remarkably triggered the cellular senescence, while Ccna2 overexpression delayed cellular senescence and significantly reversed the senescence-induction effect of miR-124 and miR-29. Moreover, these p53 responsive miRNAs were significantly up-regulated during the senescence process of p21-deficient cells; overexpression of p53 responsive miRNAs or knockdown of Ccna2 evidently accelerated the cellular senescence in the absence of p21. Taken together, our data suggested that the p53/miRNAs/Ccna2 pathway might serve as a novel senescence modulator independent of p53/p21 pathway.
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Affiliation(s)
- Shun Xu
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- The Scientific Research Center of Dongguan Guangdong Medical University Dongguan China
| | - Weijia Wu
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- The Scientific Research Center of Dongguan Guangdong Medical University Dongguan China
| | - Haijiao Huang
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- The Scientific Research Center of Dongguan Guangdong Medical University Dongguan China
| | - Ruxiao Huang
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- The Scientific Research Center of Dongguan Guangdong Medical University Dongguan China
| | - Luoyijun Xie
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- The Scientific Research Center of Dongguan Guangdong Medical University Dongguan China
| | - Ailing Su
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- The Scientific Research Center of Dongguan Guangdong Medical University Dongguan China
| | - Shuang Liu
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- The Scientific Research Center of Dongguan Guangdong Medical University Dongguan China
| | - Ruinian Zheng
- Department of Oncology Dongguan People's Hospital Dongguan China
| | - Yuan Yuan
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- The Scientific Research Center of Dongguan Guangdong Medical University Dongguan China
| | - Hui‐ling Zheng
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- The Scientific Research Center of Dongguan Guangdong Medical University Dongguan China
| | - Xuerong Sun
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- The Scientific Research Center of Dongguan Guangdong Medical University Dongguan China
| | - Xing‐dong Xiong
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- Institute of Biochemistry & Molecular Biology Guangdong Medical University Zhanjiang China
| | - Xinguang Liu
- Institute of Aging Research Guangdong Medical University Dongguan China
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics Guangdong Medical University Dongguan China
- Institute of Biochemistry & Molecular Biology Guangdong Medical University Zhanjiang China
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Guo Y, Zhang Y, Zhang SJ, Ma YN, He Y. Comprehensive analysis of key genes and microRNAs in radioresistant nasopharyngeal carcinoma. BMC Med Genomics 2019; 12:73. [PMID: 31138194 PMCID: PMC6537399 DOI: 10.1186/s12920-019-0507-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 04/22/2019] [Indexed: 12/22/2022] Open
Abstract
Background Radioresistance is one of the main obstacle limiting the therapeutic efficacy and prognosis of patients, the molecular mechanisms of radioresistance is still unclear. The purpose of this study was to identify the key genes and miRNAs and to explore their potential molecular mechanisms in radioresistant nasopharyngeal carcinoma. Methods In this study, we analysis the differentially expressed genes and microRNA based on the database of GSE48501 and GSE48502, and then employed bioinformatics to analyze the pathways and GO terms in which DEGs and DEMS target genes are involved. Moreover, Construction of protein-protein interaction network and identification of hub genes. Finally, analyzed the biological networks for validated target gene of hub miRNAs. Results A total of 373 differentially expressed genes (DEGs) and 14 differentially expressed microRNAs (DEMs) were screened out. The up-regulated gene JUN was overlap both in DEGs and publicly available studies, which was potentially targeted by three miRNAs, including hsa-miR-203, hsa-miR-24 and hsa-miR-31. Moreover, Pathway analysis showed that both up-regulated gene and DEMs target genes were enriched in TGF-beta signaling pathway, Hepatitis B, Pathways in cancer and p53 signaling pathway. Finally, we further constructed protein-protein interaction network (PPI) of DEGs and analyzed the biological networks for above mentioned common miRNAs, the result indicated that JUN was a core hub gene in PPI network, hsa-miR-24 and its target gene were significantly enriched in P53 signaling pathway. Conclusions These results might provide new clues to improve the radiosensitivity of Nasopharyngeal Carcinoma. Electronic supplementary material The online version of this article (10.1186/s12920-019-0507-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ya Guo
- Department of Oncology, The Second Affiliated Hospital of Medical College, Xi'an Jiao Tong University, 157 xi wu road, Xi'an, 710004, People's Republic of China.
| | - Yang Zhang
- Department of Oncology, The Second Affiliated Hospital of Medical College, Xi'an Jiao Tong University, 157 xi wu road, Xi'an, 710004, People's Republic of China
| | - Shu Juan Zhang
- Department of Oncology, Kashi No.2 peoples' Hospital of Xin Jiang, Kashi, 844000, Xin jiang, China
| | - Yi Nan Ma
- Department of Oncology, The Second Affiliated Hospital of Medical College, Xi'an Jiao Tong University, 157 xi wu road, Xi'an, 710004, People's Republic of China
| | - Yun He
- Department of Oncology, The Second Affiliated Hospital of Medical College, Xi'an Jiao Tong University, 157 xi wu road, Xi'an, 710004, People's Republic of China
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Zhang XM, Wang T, Hu P, Li B, Liu H, Cheng YF. SERPINB2 overexpression inhibited cell proliferation, invasion and migration, led to G2/M arrest, and increased radiosensitivity in nasopharyngeal carcinoma cells. JOURNAL OF RADIATION RESEARCH 2019; 60:318-327. [PMID: 30864656 PMCID: PMC6530626 DOI: 10.1093/jrr/rrz003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/21/2018] [Indexed: 05/05/2023]
Abstract
The aim of this study was to evaluate the effect of SERPINB2 on cell proliferation, cell cycle, epithelial-mesenchymal transition (EMT), invasion, migration, and radiosensitivity in nasopharyngeal carcinoma cells. Both CNE2R and CNE2 cells were transfected with pEGFP-N1-SERPINB2. Cell proliferation was measured by MTT assay, cell cycle by flow cytometry, and SERpINB2 expression by quantitative real-time polymerase chain reaction (qRT-PCR). Western blot was carried out to detect the protein expression. In addition, SERPINB2 and β-catenin were located intracellularly using an immunofluorescent assay, and cell migration and invasion were measured by wound healing and Transwell assays, respectively. Radiosensitivity was assessed using colony formation and MTT assays. SERPINB2 expression was downregulated in CNE2R cells. After transfection with pEGFP-N1-SERPINB2, the OD values were decreased, and there was an increased fraction in the G2/M phase. Moreover, SERPINB2 overexpression could inhibit the invasion and migration capabilities of CNE2R and CNE2 cells, with downregulation of vimentin, N-cadherin, nuclear β-catenin, matrix metalloproteinase (MMP)-2 and MMP-9, and upregulation of E-cadherin. Moreover, transfection with the SERPINB2 plasmid reduced the growth rate of CNE2R cells at doses of 2, 4 and 6 Gy, and also decreased the surviving fractions. Overexpression of SERPINB2 could reduce the proliferation, invasion and migration capabilities of CNE2R and CNE2 cells, and led to G2/M arrest via EMT inhibition, and this may be a potential strategy for enhancing the radiation sensitivity of nasopharyngeal carcinoma cells.
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Affiliation(s)
- Xiao-Mei Zhang
- Department of Radiotherapy, Qilu Hospital of Shandong University, No. 107, Wenhua West Road, Lixia District, Jinan, Shandong Province, P.R. China
| | - Tao Wang
- Corresponding author. Department of Radiotherapy, Qilu Hospital of Shandong University, No. 107, Wenhua West Road, Lixia District, Jinan 250012, Shandong Province, P.R. China. Tel: +86-185-6008-1320; Fax: 0531-86927544;
| | - Peng Hu
- Department of Radiotherapy, Qilu Hospital of Shandong University, No. 107, Wenhua West Road, Lixia District, Jinan, Shandong Province, P.R. China
| | - Bo Li
- Department of Radiology, Qilu Hospital of Shandong University, No. 107, Wenhua West Road, Lixia District, Jinan, Shandong Province, P.R. China
| | - Hong Liu
- Department of Radiotherapy, Qilu Hospital of Shandong University, No. 107, Wenhua West Road, Lixia District, Jinan, Shandong Province, P.R. China
| | - Yu-Feng Cheng
- Department of Radiotherapy, Qilu Hospital of Shandong University, No. 107, Wenhua West Road, Lixia District, Jinan, Shandong Province, P.R. China
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Guo Y, Zhai J, Zhang J, Ni C, Zhou H. Improved Radiotherapy Sensitivity of Nasopharyngeal Carcinoma Cells by miR-29-3p Targeting COL1A1 3'-UTR. Med Sci Monit 2019; 25:3161-3169. [PMID: 31034464 PMCID: PMC6503752 DOI: 10.12659/msm.915624] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background Radio-resistance is an obstacle to the treatment of human nasopharyngeal carcinoma (NPC). However, how microRNAs (miRNA) are involved in this process remains unclear. In the present study we explored the role and possible molecular mechanism of miR-29a-3p, formerly known as tumor suppressors, in radio-sensitivity of NPC cells. Material/Methods A radio-resistant sub-cell line, CNE-2R, was established to detect the expression of miR-29a/b/c-3p using qRT-PCR. CCK-8 assay, colony formation assay, and single-cell gel electrophoresis (SCGE) assay were carried out to analyze the radio-sensitivity of NPC cells. qRT-PCR, luciferase reporter, and Western blot experiments were performed to validate the targeting of COL1A1 by miR-29a. Short interference RNAs (siRNAs) were used to investigate whether COL1A1 mediates the radio-sensitizer role of miR-29a. Expression of miR-29a and COL1A1 in radio-resistant NPC tissues was finally determined. Results miR-29a was decreased in the radio-resistant CNE-2R cells. Following a time-course irradiation (IR) exposure, miR-29a exhibited a time-dependent decrease. Cellular experiments confirmed that miR-29a induced radio-sensitivity of CNE-2R cells via suppressing cell viability and enhancing cell apoptosis after IR. We confirmed that COL1A1 is a direct target of miR-29a and can exert radio-resistance effects in NPC cells. We also found that knockdown of COL1A1 inhibits NPC cell viability and sensitivity to IR. Finally, we observed a downregulation of miR-29a in radio-resistant NPC tissues and its decrease was associated with upregulation of COL1A1. Conclusions miR-29a is a critical determinant of NPC radio-response for NPC patients, and its induction provides a promising therapeutic choice to elevate NPC radio-sensitivity.
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Affiliation(s)
- Ying Guo
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Jianhua Zhai
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Jing Zhang
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Changbao Ni
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Huifang Zhou
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China (mainland)
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Hu Z, Zhou S, Luo H, Ji M, Zheng J, Huang F, Wang F. miRNA-17 promotes nasopharyngeal carcinoma radioresistance by targeting PTEN/AKT. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2019; 12:229-240. [PMID: 31933738 PMCID: PMC6944021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 11/23/2018] [Indexed: 06/10/2023]
Abstract
Radioresistance remains a challenge during nasopharyngeal carcinoma (NPC) radiotherapy. Numerous studies suggest that the miRNAs may play important roles in the regulation of radioresistance. miRNA-17-5p, which is located within the miR-17-92a cluster, could modulate tumor progression in different tissues by targeting multiple tumor associated genes. However, whether it is correlated with the radioresistance of tumor cells has not yet been elucidated. In our study, we have observed increasing miR-17-5p expression in radioresistant NPC tissues. The functional experiments suggested that miR-17-5p could clearly promote NPC cell proliferation and the cell cycle even after X-ray irradiation. Irradiation leads to tumor cell damage and death via ROS generation. The overexpression of miR-17-5p could protect NPC cells from apoptosis induced by irradiation. In addition, an in vivo experiment indicated that miR-17-5p promoted tumor growth with radiotherapy using the xenograft tumor model. A bioinformatics analysis and reporter assay were carried out to demonstrate that PTEN, which is a key regulator of AKT phosphorylation, is a target of miR-17-5p. The overexpression of miR-17-5p directly suppresses the mRNA and protein expression of PTEN. In addition, the rescue experiments showed that the AKT inhibitor can diminish the proliferation, promotion, and apoptosis inhibition effects on radioresistant NPC cells mediated by miR-17-5p. In conclusion, our findings demonstrated that miR-17-5p can enhance the radioresistance of NPC through the PTEN/AKT pathway, which is a biomarker of radioresistant NPC and a potential target for new therapeutic strategies.
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Affiliation(s)
- Zhiqiang Hu
- Department of Ear, Nose and Throat Diseases, 906 Hospital of PLANingbo, Zhejiang, China
| | - Subo Zhou
- Department of Ear, Nose and Throat Diseases, 906 Hospital of PLANingbo, Zhejiang, China
| | - Hengdan Luo
- Department of Ear, Nose and Throat Diseases, 906 Hospital of PLANingbo, Zhejiang, China
| | - Miao Ji
- Department of Ear, Nose and Throat Diseases, 906 Hospital of PLANingbo, Zhejiang, China
| | - Jianliang Zheng
- Department of Ear, Nose and Throat Diseases, 906 Hospital of PLANingbo, Zhejiang, China
| | - Fei Huang
- Department of Stomatology, No. 6 Medical Center of PLA General HospitalBeijing, China
| | - Feng Wang
- Department of Stomatology, No. 6 Medical Center of PLA General HospitalBeijing, China
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Li H, Jin X, Chen B, Li P, Li Q. Autophagy-regulating microRNAs: potential targets for improving radiotherapy. J Cancer Res Clin Oncol 2018; 144:1623-1634. [PMID: 29971533 DOI: 10.1007/s00432-018-2675-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/21/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND Radiotherapy (RT) is one of the most important therapeutic strategies against cancer. However, resistance of cancer cells to radiation remains a major challenge for RT. Thus, novel strategies to overcome cancer cell radioresistance are urgent. Macroautophagy (hereafter referred to as autophagy) is a biological process by which damaged cell components can be removed and accordingly represent a cytoprotective mechanism. Because radiation-induced autophagy is associated with either cell death or radioresistance of cancer cells, a deeper understanding of the autophagy mechanism triggered by radiation will expedite a development of strategies improving the efficacy of RT. MicroRNAs (miRNAs) are involved in many biological processes. Mounting evidence indicates that many miRNAs are involved in regulation of the autophagic process induced by radiation insult, but the underlying mechanisms remain obscure. Therefore, a deep understanding of the mechanisms of miRNAs in regulating autophagy and radioresistance will provide a new perspective for RT against cancer. METHODS We summarized the recent pertinent literature from various electronic databases, including PubMed. We reviewed the radiation-induced autophagy response and its association of the role, function and regulation of miRNAs, and discussed the feasibility of targeting autophagy-related miRNAs to improve the efficacy of RT. CONCLUSION The beneficial or harmful effect of autophagy may depend on the types of cancer and stress. The cytoprotective role of autophagy plays a dominant role in cancer RT. For most tumor cells, reducing radiation-induced autophagy can improve the efficacy of RT. MiRNAs have been confirmed to take part in the autophagy regulatory network of cancer RT, the autophagy-regulating miRNAs therefore could be developed as potential targets for improving RT.
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Affiliation(s)
- Hongbin Li
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, Gansu, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China.,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaodong Jin
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, Gansu, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China.,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu, China
| | - Bing Chen
- State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ping Li
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, Gansu, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China.,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu, China
| | - Qiang Li
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou, 730000, Gansu, China. .,Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou, 730000, China. .,Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Lanzhou, 730000, Gansu, China.
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30
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Sikder MOF, Yang S, Ganapathy V, Bhutia YD. The Na+/Cl−-Coupled, Broad-Specific, Amino Acid Transporter SLC6A14 (ATB0,+): Emerging Roles in Multiple Diseases and Therapeutic Potential for Treatment and Diagnosis. AAPS JOURNAL 2017; 20:12. [DOI: 10.1208/s12248-017-0164-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 10/13/2017] [Indexed: 12/21/2022]
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MicroRNAs Involvement in Radioresistance of Head and Neck Cancer. DISEASE MARKERS 2017; 2017:8245345. [PMID: 28325958 PMCID: PMC5343268 DOI: 10.1155/2017/8245345] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 02/12/2017] [Indexed: 12/23/2022]
Abstract
Resistance to the ionizing radiation is a current problem in the treatment and clinical management of various cancers including head and neck cancer. There are several biological and molecular mechanisms described to be responsible for resistance of the tumors to radiotherapy. Among them, the main mechanisms include alterations in intracellular pathways involved in DNA damage and repair, apoptosis, proliferation, and angiogenesis. It has been found that regulation of these complex processes is often controlled by microRNAs. MicroRNAs are short endogenous RNA molecules that posttranscriptionally modulate gene expression and their deregulated expression has been observed in many tumors including head and neck cancer. Specific expression patterns of microRNAs have also been shown to predict prognosis and therapeutic response in head and neck cancer. Therefore, microRNAs present promising biomarkers and therapeutic targets that might overcome resistance to radiation and improve prognosis of head and neck cancer patients. In this review, we summarize the current knowledge of the functional role of microRNAs in radioresistance of cancer with special focus on head and neck cancer.
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Qu JQ, Yi HM, Ye X, Li LN, Zhu JF, Xiao T, Yuan L, Li JY, Wang YY, Feng J, He QY, Lu SS, Yi H, Xiao ZQ. MiR-23a sensitizes nasopharyngeal carcinoma to irradiation by targeting IL-8/Stat3 pathway. Oncotarget 2016; 6:28341-56. [PMID: 26314966 PMCID: PMC4695064 DOI: 10.18632/oncotarget.5117] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 07/03/2015] [Indexed: 12/15/2022] Open
Abstract
Radioresistance poses a major challenge in nasopharyngeal carcinoma (NPC) treatment, but little is known about how miRNA regulates this phenomenon. In this study, we investigated the function and mechanism of miR-23a in NPC radioresistance, one of downregulated miRNAs in the radioresistant NPC cells identified by our previous microarray analysis. We observed that miR-23a was frequently downregulated in the radioresistant NPC tissues, and its decrement correlated with NPC radioresistance and poor patient survival, and was an independent predictor for reduced patient survival. In vitro radioresponse assays showed that restoration of miR-23a expression markedly increased NPC cell radiosensitivity. In a mouse model, therapeutic administration of miR-23a agomir dramatically sensitized NPC xenografts to irradiation. Mechanistically, we found that reduced miR-23a promoted NPC cell radioresistance by activating IL-8/Stat3 signaling. Moreover, the levels of IL-8 and phospho-Stat3 were increased in the radioresistance NPC tissues, and negatively associated with miR-23a level. Our data demonstrate that miR-23a is a critical determinant of NPC radioresponse and prognostic predictor for NPC patients, and its decrement enhances NPC radioresistance through activating IL-8/Stat3 signaling, highlighting the therapeutic potential of miR-23a/IL-8/Stat3 signaling axis in NPC radiosensitization.
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Affiliation(s)
- Jia-Quan Qu
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hong-Mei Yi
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xu Ye
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li-Na Li
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jin-Feng Zhu
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ta Xiao
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Yuan
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiao-Yang Li
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuan-Yuan Wang
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Juan Feng
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qiu-Yan He
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shan-Shan Lu
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hong Yi
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhi-Qiang Xiao
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China.,The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
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MicroRNAs serving as potential biomarkers and therapeutic targets in nasopharyngeal carcinoma: A critical review. Crit Rev Oncol Hematol 2016; 103:1-9. [PMID: 27179594 DOI: 10.1016/j.critrevonc.2016.04.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 03/09/2016] [Accepted: 04/14/2016] [Indexed: 12/12/2022] Open
Abstract
Despite significant medical advancement, nasopharyngeal carcinoma (NPC) remains one of the most difficult cancers to detect and treat where it continues to prevail especially among the Asian population. miRNAs could act as tumour suppressor genes or oncogenes in NPC. They play important roles in the pathogenesis of NPC by regulating specific target genes which are involved in various cellular processes and pathways. In particular, studies on miRNAs related to the Epstein Barr virus (EBV)-encoded latent membrane protein one (LMP1) and EBVmiRNA- BART miRNA confirmed the link between EBV and NPC. Both miRNA and its target genes could potentially be exploited for prognostic and therapeutic strategies. They are also important in predicting the sensitivity of NPC to radiotherapy and chemotherapy. The detection of stable circulating miRNAs in plasma of NPC patients has raised the potential of miRNAs as novel diagnostic markers. To conclude, understanding the roles of miRNA in NPC will identify ways to improve the management of patients with NPC.
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Qu JQ, Yi HM, Ye X, Zhu JF, Yi H, Li LN, Xiao T, Yuan L, Li JY, Wang YY, Feng J, He QY, Lu SS, Xiao ZQ. MiRNA-203 Reduces Nasopharyngeal Carcinoma Radioresistance by Targeting IL8/AKT Signaling. Mol Cancer Ther 2015; 14:2653-64. [PMID: 26304234 DOI: 10.1158/1535-7163.mct-15-0461] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 08/12/2015] [Indexed: 11/16/2022]
Abstract
Radioresistance poses a major challenge in nasopharyngeal carcinoma (NPC) treatment, but little is known about how miRNA (miR) regulates this phenomenon. In this study, we investigated the function and mechanism of miR-203 in NPC radioresistance, one of downregulated miRs in the radioresistant NPC cells identified by our previous microarray analysis. We observed that miR-203 was frequently downregulated in the radioresistant NPC tissues compared with radiosensitive NPC tissues, and its decrement significantly correlated with NPC radioresistance and poor patient survival, and was an independent predictor for reduced patient survival. In vitro radioresponse assays showed that miR-203 mimic markedly decreased NPC cell radioresistance. In a mouse model, therapeutic administration of miR-203 agomir dramatically sensitized NPC xenografts to irradiation. Mechanistically, we confirmed that IL8 was a direct target of miR-203, and found that reduced miR-203 promoted NPC cell radioresistance by activating IL8/AKT signaling. Moreover, the levels of IL8 and phospho-AKT were significantly increased in the radioresistant NPC tissues compared with radiosensitive NPC tissues, and negatively associated with miR-203 level. Our data demonstrate that miR-203 is a critical determinant of NPC radioresponse, and its decrement enhances NPC radioresistance through targeting IL8/AKT signaling, highlighting the therapeutic potential of the miR-203/IL8/AKT signaling axis in NPC radiosensitization.
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Affiliation(s)
- Jia-Quan Qu
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hong-Mei Yi
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xu Ye
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jin-Feng Zhu
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hong Yi
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li-Na Li
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ta Xiao
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Yuan
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiao-Yang Li
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuan-Yuan Wang
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Juan Feng
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qiu-Yan He
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shan-Shan Lu
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhi-Qiang Xiao
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan, China. The Higher Educational Key Laboratory for Cancer Proteomics and Translational Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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Pan X, Peng G, Liu S, Sun Z, Zou Z, Wu G. MicroRNA-4649-3p inhibits cell proliferation by targeting protein tyrosine phosphatase SHP-1 in nasopharyngeal carcinoma cells. Int J Mol Med 2015; 36:559-64. [PMID: 26081980 DOI: 10.3892/ijmm.2015.2245] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 05/28/2015] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to investigate the influence of microRNA-4649-3p on nasopharyngeal carcinoma (NPC) cell proliferation and how it regulated SHP-1 expression. The online software TargetScan was used to predict the microRNAs targeting SHP-1 and identified that miR-4649-3p was one of the possible miRNAs targeting SHP-1. Subsequently, quantitative polymerase chain reaction (PCR) was used to detect the expression level of miR-4649-3p and SHP-1 mRNA in different NPC cell lines. The miR-4649-3p mimics and inhibitors were transfected into NPC cells and cell proliferation was examined by the MTT assay. The SHP-1 expression level was determined by PCR and western blot analysis. Lentivirus containing the SHP-1 gene and miR-4649-3p mimics was co-transfected into the NPC cells and cell proliferation was detected by the MTT assay. The expression level of miR-4649-3p and SHP-1 mRNA was negatively correlated in the NPC cell lines. miR-4649-3p mimics suppressed NPC cell proliferation whereas miR-4649-3p inhibitors promoted NPC cell proliferation. The SHP-1 expression level was suppressed when transfected with miR-4649-3p mimics in NPC cells. The miR-4649-3p inhibitors increased SHP-1 expression. The luciferase reporter assay showed that miR-4649-3p directly targeted SHP-1 by binding to the 3'-untranslated region of SHP-1 mRNA. Overexpression of SHP-1 inversed the inhibited effect of miR-4649-3p mimics on cell proliferation. In conclusion, miR-4649-3p inhibits cell proliferation by targeting SHP-1 in NPC cells.
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Affiliation(s)
- Xiaofen Pan
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Gang Peng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Sha Liu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Ziyi Sun
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Zhenwei Zou
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Gang Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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Song L, Liu D, Wang B, He J, Zhang S, Dai Z, Ma X, Wang X. miR-494 suppresses the progression of breast cancer in vitro by targeting CXCR4 through the Wnt/β-catenin signaling pathway. Oncol Rep 2015; 34:525-31. [PMID: 25955111 DOI: 10.3892/or.2015.3965] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 04/22/2015] [Indexed: 11/05/2022] Open
Abstract
Breast cancer is the most common cancer among women with a high mortality worldwide, which is mainly due to tumor invasion and metastasis. Previous studies have reported that microRNA-494 (miR-494) is downregulated in breast cancer cells. The present study investigated the role of miR-494 in the progression of breast cancer and the underlying mechanisms. The levels of miR-494 were analyzed in several breast cancer cell lines by quantitative reverse transcription PCR (qRT-PCR). The miR-494 mRNA levels were significantly lower in the malignant breast cancer cells than the level in the non-malignant normal breast epithelial cells. miR-494 mimic transfection upregulated the expression levels of E-cadherin, yet downregulated N-cadherin, vimentin and α-smooth muscle actin (α-SMA) in the breast cancer cells. As expected, the expression of these markers in breast cancer cells transfected with miR-494 inhibitors exhibited the opposite variation trend. MTT and Transwell assays showed that cell proliferation and invasion were both significantly suppressed by miR-494 mimics, and were significantly promoted by miR-494 inhibitors. The protein expression level of chemokine (C-X-C motif) receptor 4 (CXCR4) in the breast cancer cells was significantly inhibited by miR-494 mimics, and enhanced by miR-494 inhibitors. Yet, the mRNA level of CXCR4 was barely affected by miR-494 mimics or inhibitors. Dual-luciferase assay confirmed that miR-494 directly interacted with the 3'-untranslated region of CXCR4 mRNA by dual-luciferase assay. The miR-494 mimics also significantly inhibited the transcription levels of β-catenin, LEF1, CD44 and cyclin-D1, which was similar to the effect of siRNA targeted to CXCR4. In conclusion, miR-494 suppresses the progression of breast cancer through the Wnt/β-catenin signaling pathway, which is mediated by CXCR4.
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Affiliation(s)
- Lingqin Song
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Di Liu
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Baofeng Wang
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Jianjun He
- Department of Surgical Oncology, The First Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Shuqun Zhang
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Zhijun Dai
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Xiaobin Ma
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Xijing Wang
- Department of Oncology, The Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
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Integrated analyses to reconstruct microRNA-mediated regulatory networks in mouse liver using high-throughput profiling. BMC Genomics 2015; 16 Suppl 2:S12. [PMID: 25707768 PMCID: PMC4331712 DOI: 10.1186/1471-2164-16-s2-s12] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) simultaneously target many transcripts through partial complementarity binding, and have emerged as a key type of post-transcriptional regulator for gene expression. How miRNA accomplishes its pleiotropic effects largely depends on its expression and its target repertoire. Previous studies discovered thousands of miRNAs and numerous miRNA target genes mainly through computation and prediction methods which produced high rates of false positive prediction. The development of Argonaute cross-linked immunoprecipitation coupled with high-throughput sequencing (CLIP-Seq) provides a system to effectively determine miRNA target genes. Likewise, the accuracy of dissecting the transcriptional regulation of miRNA genes has been greatly improved by chromatin immunoprecipitation of the transcription factors coupled with sequencing (ChIP-Seq). Elucidation of the miRNA target repertoire will provide an in-depth understanding of the functional roles of microRNA pathways. To reliably reconstruct a miRNA-mediated regulatory network, we established a computational framework using publicly available, sequence-based transcription factor-miRNA databases, including ChIPBase and TransmiR for the TF-miRNA interactions, along with miRNA-target databases, including miRTarBase, TarBase and starBase, for the miRNA-target interactions. We applied the computational framework to elucidate the miRNA-mediated regulatory network in the Mir122a⁻/⁻ mouse model, which has an altered transcriptome and progressive liver disease. RESULTS We applied our computational framework to the expression profiles of miRNA/mRNA of Mir122a⁻/⁻ mutant mice and wild-type mice. The miRNA-mediated network involves 40 curated TFs contributing to the aberrant expression of 65 miRNAs and 723 curated miRNA target genes, of which 56% was found in the differentially-expressed genes of Mir122a--mice. Hence, the regulatory network disclosed previously-known and also many previously-unidentified miRNA-mediated regulations in mutant mice. Moreover, we demonstrate that loss of imprinting at the chromosome 12qF1 region is associated with miRNA overexpression in human hepatocellular carcinoma and stem cells, suggesting initiation of precancerous changes in young mice deficient in miR-122. A group of 9 miRNAs was found to share miR-122 target genes, indicating synergy between miRNAs and target genes by way of multiplicity and cooperativity. CONCLUSIONS The study provides significant insight into miRNA-mediated regulatory networks. Based on experimentally verified data, this network is highly reliable and effective in revealing previously-undetermined disease-associated molecular mechanisms. This computational framework can be applied to explore the significant TF-miRNA-miRNA target interactions in any complex biological systems with high degrees of confidence.
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