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Fotakopoulos G, Georgakopoulou VE, Spandidos DA, Papalexis P, Angelopoulou E, Aravantinou-Fatorou A, Trakas N, Trakas I, Brotis AG. Role of miR‑200 family in brain metastases: A systematic review. Mol Clin Oncol 2023; 18:15. [PMID: 36798467 PMCID: PMC9926042 DOI: 10.3892/mco.2023.2611] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 01/18/2023] [Indexed: 01/26/2023] Open
Abstract
Brain metastasis (BM) represents the single most severe neurological complication of systemic cancer. The prognosis of patients with BM is poor, irrespective of the implemented treatment. The present study performed a systematic review of the literature using three online databases (PubMed, Scopus and Web of Science). Recently, a number of small RNA molecules, the microRNAs (miRNAs/miRs), have attracted increasing scientific attention. Members of the miR-200 family, which includes five miRNAs (miR-141, miR-200a, miR-200b, miR-200c and miR-429) appear to play pivotal roles in cancer initiation and metastasis. Indeed, a systematic review of the pertinent literature revealed that miR-200 family members regulate the brain metastatic cascade, particularly by modulating epithelial-to-mesenchymal transition. That holds true for the major representatives of BM, including lung and breast cancer, as well as for other less frequent secondary lesions originating from melanoma and the gastrointestinal tract. Therefore, the miRNAs may serve as potential diagnostic and/or prognostic markers, and under specific circumstances, as invaluable therapeutic targets. However, the available clinical evidence is relatively limited. A number of studies have suggested that the miR-200 family members are accurate prognostic markers of survival and resistance to chemotherapy in patients with breast cancer. Similarly, they may prove helpful in differentiating a metastatic lesion from a malignant glioma, or a hemangioblastoma from a renal cell carcinoma in patients with von Hippel Lindau syndrome, based on a cerebrospinal fluid sample. However, currently, there is no known therapeutic role for miR-200 family members in the setting of BM.
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Affiliation(s)
- George Fotakopoulos
- Department of Neurosurgery, General University Hospital of Larissa, 41221 Larissa, Greece,Correspondence to: Dr George Fotakopoulos, Department of Neurosurgery, General University Hospital of Larissa, Mezourlo, 41221 Larissa, Greece
| | - Vasiliki Epameinondas Georgakopoulou
- Department of Infectious Diseases and COVID-19 Unit, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Demetrios A. Spandidos
- Laboratory of Clinical Virology, School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Petros Papalexis
- Unit of Endocrinology, First Department of Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece,Department of Biomedical Sciences, University of West Attica, 12243 Athens, Greece
| | - Efthalia Angelopoulou
- Department of Neurology, Eginitio University Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Aikaterini Aravantinou-Fatorou
- First Department of Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Nikolaos Trakas
- Department of Biochemistry, Sismanogleio Hospital, 15126 Athens, Greece
| | - Ilias Trakas
- Department of Infectious Diseases and COVID-19 Unit, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Alexandros G. Brotis
- Department of Neurosurgery, General University Hospital of Larissa, 41221 Larissa, Greece
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Yoda RA, Cimino PJ. Neuropathologic features of central nervous system hemangioblastoma. J Pathol Transl Med 2022; 56:115-125. [PMID: 35501672 PMCID: PMC9119802 DOI: 10.4132/jptm.2022.04.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 04/13/2022] [Indexed: 12/04/2022] Open
Abstract
Hemangioblastoma is a benign, highly vascularized neoplasm of the central nervous system (CNS). This tumor is associated with loss of function of the VHL gene and demonstrates frequent occurrence in von Hippel-Lindau (VHL) disease. While this entity is designated CNS World Health Organization grade 1, due to its predilection for the cerebellum, brainstem, and spinal cord, it is still an important cause of morbidity and mortality in affected patients. Recognition and accurate diagnosis of hemangioblastoma is essential for the practice of surgical neuropathology. Other CNS neoplasms, including several tumors associated with VHL disease, may present as histologic mimics, making diagnosis challenging. We outline key clinical and radiologic features, pathophysiology, treatment modalities, and prognostic information for hemangioblastoma, and provide a thorough review of the gross, microscopic, immunophenotypic, and molecular features used to guide diagnosis.
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Affiliation(s)
- Rebecca A. Yoda
- Department of Laboratory Medicine and Pathology, Division of Neuropathology, University of Washington, Seattle, WA, USA
- Department of Laboratory Medicine and Pathology, Division of Cytopathology, University of Washington, Seattle, WA, USA
- Corresponding Author: Rebecca A. Yoda, MD, Department of Laboratory Medicine and Pathology, University of Washington, 325 9th Avenue, Box 359791, Seattle, WA 98104-2499, USA Tel: +1-206-744-3145, Fax: +1-206-744-8240, E-mail:
| | - Patrick J. Cimino
- Department of Laboratory Medicine and Pathology, Division of Neuropathology, University of Washington, Seattle, WA, USA
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3
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Identification of the Potential Prognostic Markers from the miRNA-lncRNA-mRNA Interactions for Metastatic Renal Cancer via Next-Generation Sequencing and Bioinformatics. Diagnostics (Basel) 2020; 10:diagnostics10040228. [PMID: 32316228 PMCID: PMC7235743 DOI: 10.3390/diagnostics10040228] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/06/2020] [Accepted: 04/14/2020] [Indexed: 12/18/2022] Open
Abstract
The survival rate in patients with metastatic renal cell carcinoma (RCC) is low. In addition, metastatic RCC resists traditional treatment. Therefore, identification of novel biomarkers, signaling pathways, and therapeutic targets is an important issue. The aim of the present study is to identify novel prognostic markers from the miRNA-mediated network for the regulation of metastasis of RCC. To address this issue, the RNA of human RCC cell lines, 786-O and ACHN, derived from primary and metastatic sites, respectively, were collected and subjected to RNA sequencing and small RNA sequencing. The bioinformatic analysis revealed that the pathways of the genes with different expressions were related to tumor progression, and identified miRNA and miRNA-long non-coding RNA (lncRNA) interactions, and mRNA. The results revealed that the expressions of seven miRNAs were associated with the overall survival rate of patients with RCC. Furthermore, the expressions of two lncRNA and three protein-coding genes (mRNA) were significantly associated with the increased or decreased disease-free survival rate. Although the detailed regulatory mechanism between miRNAs and targeted genes was not fully understood, our findings present novel prognostic markers and novel insight on miRNA-mediated pathways for metastatic RCC.
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Jiang YJ, Cao SQ, Gao LB, Wang YY, Zhou B, Hu X, Pu Y, Li ZL, Wang Q, Xiao X, Zhao L, Wang S, Liang WB, Zhang L. Circular Ribonucleic Acid Expression Profile in Mouse Cortex after Traumatic Brain Injury. J Neurotrauma 2019; 36:1018-1028. [PMID: 30261810 DOI: 10.1089/neu.2018.5647] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- You-jing Jiang
- Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Shu-qiang Cao
- Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Lin-bo Gao
- Laboratory of Molecular Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
| | - Yan-yun Wang
- Laboratory of Molecular Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
| | - Bin Zhou
- Laboratory of Molecular Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
| | - Xin Hu
- Department of Neurosurgery, West China Hospital, Sichuan University, China; West China Brain Research Centre, West China Hospital, Sichuan University, China
| | - Yan Pu
- Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Zhi-long Li
- Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Qian Wang
- Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Xiao Xiao
- Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Li Zhao
- Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Shuan Wang
- Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Wei-bo Liang
- Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Lin Zhang
- Department of Forensic Genetics, West China School of Basic Science and Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
- Laboratory of Molecular Translational Medicine, West China Institute of Women and Children's Health, Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, P.R. China
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5
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Fei Z, Qiu M, Qi X, Dai Y, Wang S, Quan Z, Liu Y, Ou J. MicroRNA‑424 suppresses the proliferation of hemangioma‑derived endothelial cells by targeting VEGFR‑2. Mol Med Rep 2018; 18:4065-4071. [PMID: 30132564 DOI: 10.3892/mmr.2018.9409] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 07/27/2018] [Indexed: 11/06/2022] Open
Affiliation(s)
- Zhewei Fei
- Department of General Surgery, Xinhua Hospital (Chong Ming) Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 202150, P.R. China
| | - Mingke Qiu
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Xianqin Qi
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Yuxin Dai
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Shuqing Wang
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Zhiwei Quan
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Yingbin Liu
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Jingmin Ou
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
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Mehrian-Shai R, Yalon M, Moshe I, Barshack I, Nass D, Jacob J, Dor C, Reichardt JKV, Constantini S, Toren A. Identification of genomic aberrations in hemangioblastoma by droplet digital PCR and SNP microarray highlights novel candidate genes and pathways for pathogenesis. BMC Genomics 2016; 17:56. [PMID: 26768750 PMCID: PMC4712606 DOI: 10.1186/s12864-016-2370-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 01/06/2016] [Indexed: 02/08/2023] Open
Abstract
Background The genetic mechanisms underlying hemangioblastoma development are still largely unknown. We used high-resolution single nucleotide polymorphism microarrays and droplet digital PCR analysis to detect copy number variations (CNVs) in total of 45 hemangioblastoma tumors. Results We identified 94 CNVs with a median of 18 CNVs per sample. The most frequently gained regions were on chromosomes 1 (p36.32) and 7 (p11.2). These regions contain the EGFR and PRDM16 genes. Recurrent losses were located at chromosome 12 (q24.13), which includes the gene PTPN11. Conclusions Our findings provide the first high-resolution genome-wide view of chromosomal changes in hemangioblastoma and identify 23 candidate genes: EGFR, PRDM16, PTPN11, HOXD11, HOXD13, FLT3, PTCH, FGFR1, FOXP1, GPC3, HOXC13, HOXC11, MKL1, CHEK2, IRF4, GPHN, IKZF1, RB1, HOXA9, and micro RNA, such as hsa-mir-196a-2 for hemangioblastoma pathogenesis. Furthermore, our data implicate that cell proliferation and angiogenesis promoting pathways may be involved in the molecular pathogenesis of hemangioblastoma.
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Affiliation(s)
- Ruty Mehrian-Shai
- Pediatric Hemato-Oncology, Edmond and Lilly Safra Children's Hospital and Cancer Research Center, Sheba Medical Center, Tel Hashomer affiliated to the Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel.
| | - Michal Yalon
- Pediatric Hemato-Oncology, Edmond and Lilly Safra Children's Hospital and Cancer Research Center, Sheba Medical Center, Tel Hashomer affiliated to the Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel.
| | - Itai Moshe
- Pediatric Hemato-Oncology, Edmond and Lilly Safra Children's Hospital and Cancer Research Center, Sheba Medical Center, Tel Hashomer affiliated to the Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel.
| | - Iris Barshack
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. .,Institute of Pathology, Sheba Medical Center, Tel Hashomer, Israel.
| | - Dvorah Nass
- Institute of Pathology, Sheba Medical Center, Tel Hashomer, Israel.
| | - Jasmine Jacob
- Pediatric Hemato-Oncology, Edmond and Lilly Safra Children's Hospital and Cancer Research Center, Sheba Medical Center, Tel Hashomer affiliated to the Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel.
| | - Chen Dor
- Pediatric Hemato-Oncology, Edmond and Lilly Safra Children's Hospital and Cancer Research Center, Sheba Medical Center, Tel Hashomer affiliated to the Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel.
| | - Juergen K V Reichardt
- Division of Tropical Health and Medicine, James Cook University, Townsville, QLD, Australia.
| | - Shlomi Constantini
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. .,Department of Pediatric Neurosurgery, Dana Children's Hospital, Tel-Aviv-Sourasky Medical Center, Tel-Aviv, Israel.
| | - Amos Toren
- Pediatric Hemato-Oncology, Edmond and Lilly Safra Children's Hospital and Cancer Research Center, Sheba Medical Center, Tel Hashomer affiliated to the Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel. .,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
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7
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Tang X, Hou Y, Yang G, Wang X, Tang S, Du YE, Yang L, Yu T, Zhang H, Zhou M, Wen S, Xu L, Liu M. Stromal miR-200s contribute to breast cancer cell invasion through CAF activation and ECM remodeling. Cell Death Differ 2015; 23:132-45. [PMID: 26068592 PMCID: PMC4815985 DOI: 10.1038/cdd.2015.78] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 05/02/2015] [Accepted: 05/04/2015] [Indexed: 02/07/2023] Open
Abstract
The activation of cancer-associated fibroblasts (CAFs) is a key event in tumor progression, and alternative extracellular matrix (ECM) proteins derived from CAFs induce ECM remodeling and cancer cell invasion. Here we found that miR-200 s, which are generally downregulated in activated CAFs in breast cancer tissues and in normal fibroblasts (NFs) activated by breast cancer cells, are direct mediators of NF reprogramming into CAFs and of ECM remodeling. NFs with downregulated miR-200 s displayed the traits of activated CAFs, including accelerated migration and invasion. Ectopic expression of miR-200 s in CAFs at least partially restored the phenotypes of NFs. CAF activation may be governed by the targets of miR-200 s, Fli-1 and TCF12, which are responsible for cell development and differentiation; Fli-1 and TCF12 were obviously elevated in CAFs. Furthermore, miR-200 s and their targets influenced collagen contraction by CAFs. The upregulation of fibronectin and lysyl oxidase directly by miR-200 or indirectly through Fli-1 or TCF12 contributed to ECM remodeling, triggering the invasion and metastasis of breast cancer cells both in vitro and vivo. Thus, these data provide important and novel insights into breast CAF activation and ECM remodeling, which trigger tumor cell invasion.
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Affiliation(s)
- X Tang
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, #1 Yi-Xue-Yuan Road, Yu-zhong District, Chongqing 400016, China
| | - Y Hou
- Experimental Teaching Center of Basic Medicine Science, #1 Yi-Xue-Yuan Road, Yu-zhong District, Chongqing Medical University, Chongqing 400016, China
| | - G Yang
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, No. 1 You-Yi Road, Yu-zhong District, Chongqing 400016, China
| | - X Wang
- Department of Orthopaedics, The Second Affiliated Hospital, Chongqing Medical University, No. 76 Linjiang Road, Yu-zhong District, Chongqing 400010, China
| | - S Tang
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, #1 Yi-Xue-Yuan Road, Yu-zhong District, Chongqing 400016, China
| | - Y-E Du
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, #1 Yi-Xue-Yuan Road, Yu-zhong District, Chongqing 400016, China
| | - L Yang
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, #1 Yi-Xue-Yuan Road, Yu-zhong District, Chongqing 400016, China
| | - T Yu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, No. 1 You-Yi Road, Yu-zhong District, Chongqing 400016, China
| | - H Zhang
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, #1 Yi-Xue-Yuan Road, Yu-zhong District, Chongqing 400016, China
| | - M Zhou
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, #1 Yi-Xue-Yuan Road, Yu-zhong District, Chongqing 400016, China
| | - S Wen
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, #1 Yi-Xue-Yuan Road, Yu-zhong District, Chongqing 400016, China
| | - L Xu
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, #1 Yi-Xue-Yuan Road, Yu-zhong District, Chongqing 400016, China
| | - M Liu
- Key Laboratory of Laboratory Medical Diagnostics, Chinese Ministry of Education, Chongqing Medical University, #1 Yi-Xue-Yuan Road, Yu-zhong District, Chongqing 400016, China
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Ma D, Wang Y, Du G, Zhou L. Neurosurgical Management of Brainstem Hemangioblastomas: A Single-Institution Experience with 116 Patients. World Neurosurg 2015; 84:1030-8. [PMID: 26026629 DOI: 10.1016/j.wneu.2015.05.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 05/06/2015] [Accepted: 05/07/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Brainstem hemangioblastomas (HBs) are considered one of the most challenging lesions in surgical procedures. We present our institutional experience with 116 patients over a period of 20 years in the treatment of HBs. METHODS We evaluated the results of microsurgical treatment and highlighted the management strategies. There were 60 male and 56 female patients including 13 cases with clinical evidence of von Hippel-Lindau disease. Tumors were solid in 99 cases and cystic in 17 cases. Tumors were small (≤2 cm) in 43 cases, large (2-4 cm) in 45 cases, and giant (≥4 cm) in 28 cases. RESULTS Radical removal was achieved in 111 patients (95.7%), and incomplete removal was achieved in 5 cases (4.3%). The immediate postoperative mortality and morbidity were 7.8% and 17.2%, respectively. Detailed analyses of outcomes showed that surgical complications were related to some tumor characteristics. Follow-up study was available in 83 patients by Karnofsky performance scale scores. Most patients maintained their preoperative neurologic status. There were 17 patients with surgical disability who demonstrated a clear improvement with rehabilitation treatment. Worsening of neurologic deficits occurred in 2 patients. Ectopic recurrent lesions developed in 2 patients. CONCLUSIONS Based on our experience, microsurgery is safe and effective, and excellent outcomes can be obtained for cystic or small tumors. We advocate early surgical intervention for sporadic HBs; giant solid HBs remain a challenge, and meticulous microsurgical technique and perioperative management are vital. Long-term monitoring also is recommended.
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Affiliation(s)
- Dexuan Ma
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ying Wang
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Guhong Du
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Liangfu Zhou
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.
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Muraoka T, Soh J, Toyooka S, Maki Y, Shien K, Furukawa M, Ueno T, Tanaka N, Yamamoto H, Asano H, Tsukuda K, Miyoshi S. Impact of aberrant methylation of microRNA-9 family members on non-small cell lung cancers. Mol Clin Oncol 2012; 1:185-189. [PMID: 24649145 DOI: 10.3892/mco.2012.18] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Accepted: 08/23/2012] [Indexed: 12/31/2022] Open
Abstract
MicroRNAs (miRs) contribute to cancer development and progression by acting as oncogenes and tumor suppressor genes. miR-9 family members (miR-9s), including miR-9-1, 9-2 and 9-3, have been shown to be oncogenically involved through the downregulation of E-cadherin expression, which promotes the epithelial-mesenchymal transition. Tumor suppressive roles of miR-9s have also been reported to silence miR-9 through methylation, which is associated with an shortened overall survival (OS) period in several types of cancer. In this study, the impact of miR-9s methylation on non-small cell lung cancers (NSCLC) was investigated. In total, 293 resected NSCLC samples were examined and the miR-9s methylation status was determined using a combined bisulfite restriction analysis. miR-9 expression was analyzed by in situ hybridization. Methylation of miR-9-1, 9-2 and 9-3 was present in 20 (7%), 33 (11%) and 34 (12%) of the cases, respectively. Methylation of any miR-9s (miR-9s methylation) was observed in 76 of the cases (26%), and miR-9 expression was silenced in cases with miR-9s methylation. Logistic regression analysis demonstrated that male gender [odds ratio (OR), 2.0; 95% confidence interval (95% CI), 1.1-3.6; P=0.01] and pathologically negative lymph node metastasis (OR, 4.8; 95% CI, 1.4-17.2; P=0.002) were independent relative factors for miR-9s methylation. Additionally, miR-9s methylation [hazard ratio (HR), 4.2; 95% CI, 1.2-27.0; P=0.026] and early pathological stage (HR, 8.3; 95% CI, 2.1-28.6; P=0.004) were found to be independent predictive factors for prolonged OS time by the Cox proportional hazard test. miR-9s methylation which induces expression silencing is common in NSCLC cases without lymph nodal metastasis, suggesting that miR-9s are oncogenically involved in NSCLC carcinogenesis through the promotion of tumor metastasis.
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Affiliation(s)
- Takayuki Muraoka
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
| | - Junichi Soh
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
| | - Shinichi Toyooka
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
| | - Yuho Maki
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
| | - Kazuhiko Shien
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
| | - Masashi Furukawa
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
| | - Tsuyoshi Ueno
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
| | - Norimitsu Tanaka
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
| | - Hiromasa Yamamoto
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
| | - Hiroaki Asano
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
| | - Kazunori Tsukuda
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
| | - Shinichiro Miyoshi
- Department of Cancer and Thoracic Surgery, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama 700-8558, Japan
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