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Ludwig N, Kim YJ, Mueller SC, Backes C, Werner TV, Galata V, Sartorius E, Bohle RM, Keller A, Meese E. Posttranscriptional deregulation of signaling pathways in meningioma subtypes by differential expression of miRNAs. Neuro Oncol 2015; 17:1250-60. [PMID: 25681310 DOI: 10.1093/neuonc/nov014] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 01/16/2015] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Micro (mi)RNAs are key regulators of gene expression and offer themselves as biomarkers for cancer development and progression. Meningioma is one of the most frequent primary intracranial tumors. As of yet, there are limited data on the role of miRNAs in meningioma of different histological subtypes and the affected signaling pathways. METHODS In this study, we compared expression of 1205 miRNAs in different meningioma grades and histological subtypes using microarrays and independently validated deregulation of selected miRNAs with quantitative real-time PCR. Clinical utility of a subset of miRNAs as biomarkers for World Health Organization (WHO) grade II meningioma based on quantitative real-time data was tested. Potential targets of deregulated miRNAs were discovered with an in silico analysis. RESULTS We identified 13 miRNAs deregulated between different subtypes of benign meningiomas, and 52 miRNAs deregulated in anaplastic meningioma compared with benign meningiomas. Known and putative target genes of deregulated miRNAs include genes involved in epithelial-to-mesenchymal transition for benign meningiomas, and Wnt, transforming growth factor-β, and vascular endothelial growth factor signaling for higher-grade meningiomas. Furthermore, a 4-miRNA signature (miR-222, -34a*, -136, and -497) shows promise as a biomarker differentiating WHO grade II from grade I meningiomas with an area under the curve of 0.75. CONCLUSIONS Our data provide novel insights into the contribution of miRNAs to the phenotypic spectrum in benign meningiomas. By deregulating translation of genes belonging to signaling pathways known to be important for meningioma genesis and progression, miRNAs provide a second in line amplification of growth promoting cellular signals. MiRNAs as biomarkers for diagnosis of aggressive meningiomas might prove useful and should be explored further in a prospective manner.
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Affiliation(s)
- Nicole Ludwig
- Department of Human Genetics Medical School, Saarland University, Homburg/Saar, Germany (N.L., S.C.M., C.B., T.V.W., V.G., E.M.); Institute of Pathology Medical School, Saarland University, Homburg/Saar, Germany (Y.-J.K., E.S., R.M.B.); Chair for Clinical Bioinformatics, Saarland University, University Hospital, Saarbrücken, Germany (S.C.M., C.B., V.G., A.K.)
| | - Yoo-Jin Kim
- Department of Human Genetics Medical School, Saarland University, Homburg/Saar, Germany (N.L., S.C.M., C.B., T.V.W., V.G., E.M.); Institute of Pathology Medical School, Saarland University, Homburg/Saar, Germany (Y.-J.K., E.S., R.M.B.); Chair for Clinical Bioinformatics, Saarland University, University Hospital, Saarbrücken, Germany (S.C.M., C.B., V.G., A.K.)
| | - Sabine C Mueller
- Department of Human Genetics Medical School, Saarland University, Homburg/Saar, Germany (N.L., S.C.M., C.B., T.V.W., V.G., E.M.); Institute of Pathology Medical School, Saarland University, Homburg/Saar, Germany (Y.-J.K., E.S., R.M.B.); Chair for Clinical Bioinformatics, Saarland University, University Hospital, Saarbrücken, Germany (S.C.M., C.B., V.G., A.K.)
| | - Christina Backes
- Department of Human Genetics Medical School, Saarland University, Homburg/Saar, Germany (N.L., S.C.M., C.B., T.V.W., V.G., E.M.); Institute of Pathology Medical School, Saarland University, Homburg/Saar, Germany (Y.-J.K., E.S., R.M.B.); Chair for Clinical Bioinformatics, Saarland University, University Hospital, Saarbrücken, Germany (S.C.M., C.B., V.G., A.K.)
| | - Tamara V Werner
- Department of Human Genetics Medical School, Saarland University, Homburg/Saar, Germany (N.L., S.C.M., C.B., T.V.W., V.G., E.M.); Institute of Pathology Medical School, Saarland University, Homburg/Saar, Germany (Y.-J.K., E.S., R.M.B.); Chair for Clinical Bioinformatics, Saarland University, University Hospital, Saarbrücken, Germany (S.C.M., C.B., V.G., A.K.)
| | - Valentina Galata
- Department of Human Genetics Medical School, Saarland University, Homburg/Saar, Germany (N.L., S.C.M., C.B., T.V.W., V.G., E.M.); Institute of Pathology Medical School, Saarland University, Homburg/Saar, Germany (Y.-J.K., E.S., R.M.B.); Chair for Clinical Bioinformatics, Saarland University, University Hospital, Saarbrücken, Germany (S.C.M., C.B., V.G., A.K.)
| | - Elke Sartorius
- Department of Human Genetics Medical School, Saarland University, Homburg/Saar, Germany (N.L., S.C.M., C.B., T.V.W., V.G., E.M.); Institute of Pathology Medical School, Saarland University, Homburg/Saar, Germany (Y.-J.K., E.S., R.M.B.); Chair for Clinical Bioinformatics, Saarland University, University Hospital, Saarbrücken, Germany (S.C.M., C.B., V.G., A.K.)
| | - Rainer M Bohle
- Department of Human Genetics Medical School, Saarland University, Homburg/Saar, Germany (N.L., S.C.M., C.B., T.V.W., V.G., E.M.); Institute of Pathology Medical School, Saarland University, Homburg/Saar, Germany (Y.-J.K., E.S., R.M.B.); Chair for Clinical Bioinformatics, Saarland University, University Hospital, Saarbrücken, Germany (S.C.M., C.B., V.G., A.K.)
| | - Andreas Keller
- Department of Human Genetics Medical School, Saarland University, Homburg/Saar, Germany (N.L., S.C.M., C.B., T.V.W., V.G., E.M.); Institute of Pathology Medical School, Saarland University, Homburg/Saar, Germany (Y.-J.K., E.S., R.M.B.); Chair for Clinical Bioinformatics, Saarland University, University Hospital, Saarbrücken, Germany (S.C.M., C.B., V.G., A.K.)
| | - Eckart Meese
- Department of Human Genetics Medical School, Saarland University, Homburg/Saar, Germany (N.L., S.C.M., C.B., T.V.W., V.G., E.M.); Institute of Pathology Medical School, Saarland University, Homburg/Saar, Germany (Y.-J.K., E.S., R.M.B.); Chair for Clinical Bioinformatics, Saarland University, University Hospital, Saarbrücken, Germany (S.C.M., C.B., V.G., A.K.)
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Yun S, Koh JM, Lee KS, Seo AN, Nam KH, Choe G. Expression of c-MET in Invasive Meningioma. J Pathol Transl Med 2015; 49:44-51. [PMID: 25812657 PMCID: PMC4357404 DOI: 10.4132/jptm.2014.10.13] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 10/07/2014] [Accepted: 10/13/2014] [Indexed: 11/17/2022] Open
Abstract
Background: Meningiomas show high recurrence rates even after curative tumor removal. The invasiveness of meningiomas may contribute to their high recurrence rates. Recently, c-MET and hepatocyte growth factor (HGF) have been reported to be involved in cancer invasion. Methods: We examined the immunohistochemical expression of c-MET and HGF in 100 cases of patients with meningiomas who have undergone complete tumor removal. Results: c-MET-High and HGFHigh were found in 17% and 13% of meningiomas, respectively. Brain invasion was observed in 17.6% of c-MET-High meningiomas, but in only 2.4% of c-MET-Low meningiomas (p=.033). Bone/soft tissue invasion was observed in 23.5% of c-MET-High meningiomas and in 9.6% of c-MET-Low meningiomas (p=.119). HGF-High did not show statistical association with brain invasion or bone/soft tissue invasion. c-MET-High demonstrated shorter recurrence-free survival (RFS, 93.5±8.2 months vs 96.1±1.9 months); however, this difference was not statistically significant (p=.139). There was no association of HGF-High with RFS. Conclusions: This study demonstrates that c- MET-High is associated with brain invasion of meningiomas, and that c-MET expression may be a useful predictive marker for meningioma recurrence. Patients with invasive meningiomas with high expressions of c-MET may be good candidates for targeted therapy using c-MET inhibitors.
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Affiliation(s)
- Sumi Yun
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Jae Moon Koh
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Kyu Sang Lee
- Department of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - An Na Seo
- Department of Pathology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Kyung Han Nam
- Department of Pathology, Haeundae Paik Hospital, Inje University, Busan, Korea
| | - Gheeyoung Choe
- Department of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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