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Series GSE46686 Query DataSets for GSE46686
Status Public on Nov 13, 2013
Title F11R is a novel monocyte prognostic biomarker for malignant glioma [Affymetrix]
Organism Mus musculus
Experiment type Expression profiling by array
Summary Objective:
Brain tumors (gliomas) contain large populations of infiltrating macrophages and recruited microglia, which in experimental murine glioma models promote tumor formation and progression. Among the barriers to understanding the contributions of these stromal elements to high-grade glioma (glioblastoma; GBM) biology is the relative paucity of tools to characterize infiltrating macrophages and resident microglia. In this study, we leveraged multiple RNA analysis platforms to identify new monocyte markers relevant to GBM patient outcome.

High-confidence lists of mouse resident microglia- and bone marrow-derived macrophage-specific transcripts were generated using converging RNA-seq and microarray technologies and validated using qRT-PCR and flow cytometry. Expression of select cell surface markers was analyzed in brain-infiltrating macrophages and resident microglia in an induced GBM mouse model, while allogeneic bone marrow transplantation was performed to trace the origins of infiltrating and resident macrophages. Glioma tissue microarrays were examined by immunohistochemistry, and the Gene Expression Omnibus (GEO) database was queried to determine the prognostic value of identified microglia biomarkers in human GBM.

We generated a unique catalog of differentially-expressed bone marrow-derived monocyte and resident microglia transcripts, and demonstrated that brain-infiltrating macrophages acquire F11R expression in GBM and following bone-marrow transplantation. Moreover, mononuclear cell F11R expression positively correlates with human high-grade glioma and additionally serves as a biomarker for GBM patient survival, regardless of GBM molecular subtype.

These studies establish F11R as a novel monocyte prognostic marker for GBM critical for defining a subpopulation of stromal cells for future potential therapeutic intervention.
Overall design Total RNA was isolated from three independently-generated sets of flow sorted bone marrow monocytes (CD11b+ CD45high CD115+ Ly6G- cells) and brainstem microglia (CD11b+ CD45low CD115low Ly6G- cells) for Illumina RNA-Seq, and two additional pools were subsequently generated and submitted for Affymetrix Mouse Exon 1.0ST microarray. Two of the RNA-Seq samples were additionally analyzed by the microarray, for a total of 6 samples (3 monocyte, 3 microglia) in each platform. Data outputs were analyzed by two analysis methods each (RNA-Seq data: ALEXA-Seq and Cufflinks; microarray data: Partek and Aroma). All four lists were merged into a new high-confidence gene list of transcripts that were significantly differentially expressed (DE) in three out of the four analyses.
In this dataset, we include exon expression data obtained from flow sorted mouse bone marrow monocytes and brainstem microglia.
Contributor(s) Pong WW, Walker J, Wylie T, Magrini V, Luo J, Emnett RJ, Choi J, Cooper ML, Griffith M, Griffith OL, Rubin JB, Fuller GN, Piwnica-Worms D, Feng X, Hambardzumyan D, DiPersio JF, Mardis ER, Gutmann DH
Citation(s) 24147027
Submission date May 07, 2013
Last update date Mar 06, 2018
Contact name Winnie W Pong
Organization name Washington University School of Medicine
Department Department of Neurology
Lab David H Gutmann Laboratory
Street address 660 S. Euclid Avenue
City St Louis
State/province MO
ZIP/Postal code 63110
Country USA
Platforms (2)
GPL6096 [MoEx-1_0-st] Affymetrix Mouse Exon 1.0 ST Array [transcript (gene) version]
GPL6193 [MoEx-1_0-st] Affymetrix Mouse Exon 1.0 ST Array [probe set (exon) version]
Samples (12)
GSM1134004 brain-microglia-S9-1119008 (Aroma)
GSM1134005 bonemarrow-monocyte-S7-1119009 (Aroma)
GSM1134006 brain-microglia-S10-1119010 (Aroma)
This SubSeries is part of SuperSeries:
GSE46690 F11R is a novel monocyte prognostic biomarker for malignant glioma
BioProject PRJNA201679

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Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE46686_RAW.tar 260.4 Mb (http)(custom) TAR (of CEL)
Processed data included within Sample table

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