Project description:Multiple stereotatically separate sites from human meningioma were processed for methlyation profiling Meningiomas are the most common primary intracranial tumors, but the molecular drivers of meningioma tumorigenesis are poorly understood. We hypothesized that investigating intratumor heterogeneity in meningiomas would elucidate biologic drivers and reveal new targets for molecular therapy. To test this hypothesis, we performed multiplatform molecular profiling of 86 spatially-distinct samples from 13 human meningiomas. Our data reveal that regional alterations in chromosome structure underlie clonal transcriptomic, epigenomic, and histopathologic signatures in meningioma. Stereotactic co-registration of sample coordinates to preoperative magnetic resonance images further demonstrated that high apparent diffusion coefficient (ADC) distinguished meningioma regions with proliferating cells enriched for developmental gene expression programs. To understand the function of these genes in meningioma, we developed a human cerebral organoid model of meningioma and validated the high ADC marker genes CDH2 and PTPRZ1 as potential targets for meningioma therapy using live imaging, single cell RNA sequencing, CRISPR interference, and pharmacology.
Project description:RNA Nanostring from human meningioma samples This set of data pertains to RNA extracted from 2mm core punches from the representative FFPE blocks, on which a custom codeset was run.
Project description:We report single-cell RNA sequencing of 57,114 cells from 8 meningioma samples and 2 dura samples, which are used to analyze the inter- and intra-meningioma heterogeneity across DNA methylation groups.
Project description:Our single-cell transcriptomic dataset exceeds the scale of previous efforts to systematically characterize meningioma. We identified CLU is tumor suppresser, also promote the anti-tumor capability of macrophage, that why CLU decreased in meningioma malignancy. HDACi may inhibit meningioma by increasing CLU expression. Therefore, promoting CLU expression maybe a great strategy for meningioma therapeutics.
Project description:Comparison of the gene expression profiles with meningiomas of different grading. 24 primary meningioma cultures from surgical specimen were maintained to primary meningioma cultures.