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| Status |
Public on Oct 01, 2019 |
| Title |
Cx3cr1-deficient microglia exhibit a premature aging transcriptome |
| Organism |
Mus musculus |
| Experiment type |
Genome binding/occupancy profiling by high throughput sequencing
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| Summary |
CX3CR1, one of the highest expressed genes in microglia in mice and humans, is implicated in numerous microglial functions. However, the molecular mechanisms underlying Cx3cr1 signaling are not well understood. Here, we analyzed transcriptomes of Cx3cr1-deficient microglia under varying conditions by RNA-Seq. In 2 mos mice, Cx3cr1 deletion resulted in the downregulation of a subset of immune-related genes, without substantial epigenetic changes in markers of active chromatin. Surprisingly, Cx3cr1-deficient microglia from young mice exhibited a transcriptome consistent with that of aged Cx3cr1-sufficient animals, suggesting a premature aging transcriptomic signature. Immunohistochemical analysis of microglia in young and aged mice revealed that loss of Cx3cr1 modulates microglial morphology in a compatible fashion. Our results suggest that CX3CR1 may regulate microglial function in part by modulating the expression levels of a subset of inflammatory genes during chronological aging, making Cx3cr1-deficient mice useful for studying aged microglia.
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| Overall design |
H3K27ac and Rpb2 ChIP-seq for microglia C57BL/6J mice and Cx3cr1-deficient mice.
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| Contributor(s) |
Gyoneva S, Hosur R, Gosselin D, Zhang B, Ouyang Z, Cotleur AC, Peterson M, Allaire N, Challa R, Cullen P, Roberts C, Miao K, Reynolds TL, Glass CK, Burkly L, Ransohoff RM |
| Citation(s) |
31792059 |
| Submission date |
May 09, 2019 |
| Last update date |
Dec 31, 2019 |
| Contact name |
Christopher K Glass |
| E-mail(s) |
ckg@ucsd.edu
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| Organization name |
University of California, San Diego
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| Department |
School of Medicine
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| Street address |
9500 Gilman Drive
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| City |
La Jolla |
| State/province |
CA |
| ZIP/Postal code |
92093 |
| Country |
USA |
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| Platforms (1) |
| GPL21103 |
Illumina HiSeq 4000 (Mus musculus) |
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| Samples (12)
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| Relations |
| BioProject |
PRJNA542087 |
| SRA |
SRP197306 |
| Supplementary file |
Size |
Download |
File type/resource |
| GSE130960_H3k27ac.peak.tag.txt.gz |
5.1 Mb |
(ftp)(http) |
TXT |
| GSE130960_Rbp2.peak.tag.txt.gz |
2.5 Mb |
(ftp)(http) |
TXT |
SRA Run Selector |
| Raw data are available in SRA |
| Processed data are available on Series record |
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