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Albert TK, Interlandi M, Sill M, Graf M, Moreno N, Menck K, Rohlmann A, Melcher V, Korbanka S, Meyer Zu Hörste G, Lautwein T, Frühwald MC, Krebs CF, Holdhof D, Schoof M, Bleckmann A, Missler M, Dugas M, Schüller U, Jäger N, Pfister SM, Kerl K. An extracellular vesicle-related gene expression signature identifies high-risk patients in medulloblastoma. Neuro Oncol 2021; 23:586-598. [PMID: 33175161 DOI: 10.1093/neuonc/noaa254] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Medulloblastoma (MB) is a malignant brain tumor in childhood. It comprises 4 subgroups with different clinical behaviors. The aim of this study was to characterize the transcriptomic landscape of MB, both at the level of individual tumors as well as in large patient cohorts. METHODS We used a combination of single-cell transcriptomics, cell culture models and biophysical methods such as nanoparticle tracking analysis and electron microscopy to investigate intercellular communication in the MB tumor niche. RESULTS Tumor cells of the sonic hedgehog (SHH)-MB subgroup show a differentiation blockade. These cells undergo extensive metabolic reprogramming. The gene expression profiles of individual tumor cells show a partial convergence with those of tumor-associated glial and immune cells. One possible cause is the transfer of extracellular vesicles (EVs) between cells in the tumor niche. We were able to detect EVs in co-culture models of MB tumor cells and oligodendrocytes. We also identified a gene expression signature, EVS, which shows overlap with the proteome profile of large oncosomes from prostate cancer cells. This signature is also present in MB patient samples. A high EVS expression is one common characteristic of tumors that occur in high-risk patients from different MB subgroups or subtypes. CONCLUSIONS With EVS, our study uncovered a novel gene expression signature that has a high prognostic significance across MB subgroups.
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Affiliation(s)
- Thomas K Albert
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
| | - Marta Interlandi
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany.,Institute of Medical Informatics, Westphalian-Wilhelms-University (WWU) Münster, Münster, Germany
| | - Martin Sill
- Hopp-Children's Cancer Center at the NCT Heidelberg (KiTZ), Heidelberg, Germany.,Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Monika Graf
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
| | - Natalia Moreno
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
| | - Kerstin Menck
- Department of Medicine A, Hematology, Oncology, and Pneumology, University Hospital Münster (UKM), Münster, Germany
| | - Astrid Rohlmann
- Department of Medicine A, Hematology, Oncology, and Pneumology, University Hospital Münster (UKM), Münster, Germany.,Department of Anatomy and Molecular Neurobiology, WWU Münster, Münster, Germany
| | - Viktoria Melcher
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
| | - Sonja Korbanka
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
| | | | - Tobias Lautwein
- Biological and Medical Research Center, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Michael C Frühwald
- Swabian Children's Cancer Center, Children's Hospital Augsburg, Augsburg, Germany
| | - Christian F Krebs
- Center for Internal Medicine, III. Medical Clinic and Polyclinic, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Dörthe Holdhof
- Department of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Research Institute Children's Cancer Center, Hamburg, Germany
| | - Melanie Schoof
- Department of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Research Institute Children's Cancer Center, Hamburg, Germany
| | - Annalen Bleckmann
- Department of Medicine A, Hematology, Oncology, and Pneumology, University Hospital Münster (UKM), Münster, Germany
| | - Markus Missler
- Department of Anatomy and Molecular Neurobiology, WWU Münster, Münster, Germany
| | - Martin Dugas
- Institute of Medical Informatics, Westphalian-Wilhelms-University (WWU) Münster, Münster, Germany
| | - Ulrich Schüller
- Department of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Research Institute Children's Cancer Center, Hamburg, Germany.,Institute of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Natalie Jäger
- Hopp-Children's Cancer Center at the NCT Heidelberg (KiTZ), Heidelberg, Germany
| | - Stefan M Pfister
- Hopp-Children's Cancer Center at the NCT Heidelberg (KiTZ), Heidelberg, Germany.,Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany.,German Cancer Consortium (DKTK) Heidelberg, Heidelberg, Germany.,Department of Pediatric Oncology, Hematology and Immunology, University Hospital Heidelberg, Heidelberg, Germany
| | - Kornelius Kerl
- Department of Pediatric Hematology and Oncology, University Children's Hospital Münster, Münster, Germany
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Li J, Chen C, Fu R, Zhang Y, Fan Y, Xu J, Cen Y. Texture Analysis of T1-Weighted Contrast-Enhanced Magnetic Resonance Imaging Potentially Predicts Outcomes of Patients with Non-Wingless-Type/Non-Sonic Hedgehog Medulloblastoma. World Neurosurg 2019; 137:e27-e33. [PMID: 31589984 DOI: 10.1016/j.wneu.2019.09.142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To investigate whether tumor texture features derived from preoperative T1-weighted magnetic resonance imaging (MRI) are associated with overall survival (OS) of patients with non-wingless-type (WNT)/non-sonic hedgehog (SHH) medulloblastoma. METHODS We retrospectively reviewed 38 patients with non-WNT/non-SHH (encompassing group 3 and group 4) medulloblastoma treated with surgery in our institution from 2013 to 2016. All patients were followed-up for at least 2 years or until death. Primary tumor traditional parameters were evaluated, and texture features were extracted from preoperative T1-weighted MRI, including 4 features from the histogram matrix and 6 textures from the gray-level co-occurrence matrix (GLCM). Texture features were dichotomized into 2 subgroups based on their optimal cutoff values obtained from receiver operating characteristics curve analysis. Two-year OS was compared between the dichotomized subgroups using the Kaplan-Meier analysis and log-rank test. Multivariate Cox regression analysis was performed to determine independent prognostic factors. RESULTS The therapy regimen was the only basic characteristic significantly related to 2-year OS (P = 0.015). Two features of the GLCM were shown to be significantly associated with 24-month OS. Multivariate Cox regression analysis revealed that GLCM homogeneity (adjusted hazard ratio, 0.145; P = 0.013) was an independent prognostic predictor for patients. CONCLUSIONS Texture analysis on T1-weighted contrast-enhanced MRI potentially serves as a prognostic predictor of survival for patients with non-WNT/non-SHH medulloblastoma.
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Affiliation(s)
- Jiaqi Li
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Chaoyue Chen
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Rao Fu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Zhang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yimeng Fan
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China
| | - Jianguo Xu
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Ying Cen
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China.
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