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Rab8a restores diverse innate functions of CD11b+CD11c+ dendritic cells from aged mice

GSE279003 Mus musculus (mouse) RNA-seq (gene expression) 3 samples Submitted 2024/10/14 Platform GPL34290
At a glance

RNA-seq (gene expression) · mouse · 3 samples

What it is
RNA-seq (gene expression)Gene activity measured by sequencing. The summary does not mention single-cell work, so this is most likely bulk: one average per sample, the usual starting point for comparing groups.
Organism
Mus musculus (mouse)
Samples
3 samples
Data you can get
A processed table (series matrix) and supplementary files from NCBI; the raw sequencing reads from ENA. Which of these hold counts depends on the study, so check the file list.
Paper
Rab8a restores diverse innate functions in CD11c(+)CD11b(+) dendritic cells from aged miceNature communications · 2024
Summary (written by the submitters)
Here, we demonstrate that Rab8a, a small GTPase, plays critical role in the functioning of dendritic cells (DCs) of aging host. Compared with the cells of young mice, CD11c+CD11b+ bone marrow derived dendritic cells (BMDCs) of aged mice generated a diminished type I IFN response when stimulated with Influenza A virus (IAV) and murine herpesvirus 68 (MHV68).
Read the full summary ↓
In comparison to those of young mice, BMDCs of aged mice inefficiently presented exogenous antigens to CD8+ T cells in vitro and in vivo. While the Rab8a overexpressing BMDCs of aged animals regained functionality and generated a potent anti-viral IFN response, the Rab8a depleted cells of young animals were severely compromised in producing IFNs. BMDCs of young and aged animals were transcriptionally distinct but the Rab8a overexpressing cells of aged animals widely shared transcriptome with those of young animals. Ovalbumin fed Rab8a reconstituted BMDCs of aged animals upregulated Rab11 than did the control cells. Both Rab8a and Rab11 preferentially co-localised with the generated SIINFEKL peptide-H-2Kb complexes in the endosomal recycling compartment (ERC) to efficiently induce the surface display of such complexes. Compared with the control cells, the Ova fed Rab8a reconstituted BMDCs of aged animals expanded more of the TCR tg OT1 cells to better control IAV (WSN-SIINFEKL) infection. Therefore, targeting Rab8a might serve as a strategy to promote the functioning of DCs in the aging host to achieve favourable outcome of viral infection.
Published in
Rab8a restores diverse innate functions in CD11c(+)CD11b(+) dendritic cells from aged mice
Singh S, Tehseen A, Dahiya S et al. · Nature communications 2024 · PMID 39604443 · doi:10.1038/s41467-024-54757-2
This dataset
Download · which file do I need?

Direct links to NCBI and ENA, no account and no request form. Pick by what you want to do: take the small processed table to look, the supplementary files to re-analyse, or the original raw data to start over.

1 · Just have a look

Processed table

The series matrix: one table of values per sample as the submitters processed it. The smallest download, and it opens in Excel or R. Start here to see what the data look like.

2 · Re-analyse it

Supplementary files

The count tables and other files the authors uploaded. Take only the samples you need, or the whole study as GSE279003_RAW.tar (it can run to tens of gigabytes).

3 · Start from the raw reads

Raw sequencing reads

The original FASTQ files, straight from the sequencer, held at ENA. Large, and you align them yourself, so only choose this if you need to re-process the study from scratch.

What the files usually look like: For RNA-seq the counts are usually a table among the supplementary files (look for 'counts', 'expression', 'FPKM' or 'TPM' in the file name). The series matrix of a sequencing study is sometimes nearly empty.

Also filed as BioProject PRJNA1169897 and SRA study SRP537339. Searching any of these in the dataset finder brings you back here.

Samples in this study

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