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Disruption of the intellectual disability-linked gene Hs6st2 in mice decreases heparan sulfate 6-O-sulfation in the brain and impairs memory

GSE213745 Mus musculus (mouse) RNA-seq (gene expression) 15 samples Submitted 2024/08/04 Platform GPL24247
At a glance

RNA-seq (gene expression) · mouse · 15 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
15 samples: 4 × hippocampus_WT vs 4 × hippocampus_KO vs 4 × cortex_WT vs 3 × cortex_KOGroups are read from the sample names, not from the paper. Check the list below.
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
Knockout of the intellectual disability-linked gene Hs6st2 in mice decreases heparan sulfate 6-O-sulfation, impairs dendritic spines of hippocampal neurons, and affects memoryGlycobiology · 2024
Summary (written by the submitters)
Heparan sulfate (HS) is a linear polysaccharide that plays a key role in cellular signaling networks. HS functions are regulated by its 6-O-sulfation, which is catalyzed by HS 6-O-sulfotransferases (HS6STs). Although mutations in HS6ST2 cause intellectual disability in human patients, the role and molecular mechanisms of HS6ST2 in the adult mammalian brain remain unknown.
Read the full summary ↓
Here we found that the brain specifically expresses the long isoform of Hs6st2, which encodes a protein that retains the sulfotransferase domain and acquires a novel sub-structure. To determine the role of Hs6st2 in the brain, we carried out a series of behavioral and molecular assessments on the Hs6st2 knockout mice. We found that Hs6st2 knockout mice exhibit high body weight, hyperactivity, and memory-related deficits. To determine the molecular mechanisms underlying these deficits, we carried out strong anion exchange-high performance liquid chromatography and RNA sequencing. We found that knockout of Hs6st2 decreases HS 6-O-sulfation levels in the brain and impairs transcriptome in the hippocampus. We also found that the transcriptome changes are enriched in genes involved in ribosome and protein translation pathways, which are likely due to the downregulation of the fibroblast growth factor signaling. Together, our study demonstrates the role and molecular mechanisms of Hs6st2 in the adult mammalian brain, which provides new insights into the role of HS in brain health and disease.
Published in
Knockout of the intellectual disability-linked gene Hs6st2 in mice decreases heparan sulfate 6-O-sulfation, impairs dendritic spines of hippocampal neurons, and affects memory
Moon S, Lee HH, Archer-Hartmann S et al. · Glycobiology 2024 · PMID 38015989 · doi:10.1093/glycob/cwad095
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 GSE213745_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 PRJNA882373 and SRA study SRP398203. Searching any of these in the dataset finder brings you back here.

Study design
4 × hippocampus_WT vs 4 × hippocampus_KO vs 4 × cortex_WT vs 3 × cortex_KO

Supports a between-group comparison across 15 samples.

How we read this: 4 replicated groups read from 15 sample titles; they account for 15 of them. These groups are guessed from the sample names, not taken from the paper, so check them against the sample list below before relying on them.

Samples in this study
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