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Aberrant Upregulation of Histamine N-Methyltransferase Exacerbates Pathological Cardiac Hypertrophy and Heart Failure via Disruption of SAM/Frizzled-2/ CaMKII Signaling Pathway [RNA-seq]

GSE307584 Mus musculus (mouse) RNA-seq (gene expression) 12 samples Submitted 2026/01/30 Platform GPL30215
At a glance

RNA-seq (gene expression) · mouse · 12 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
12 samples: 3 × NMCMs AdCon vs 3 × NMCMs AdOE vs 3 × NMCMs AdCon+PE vs 3 × NMCMs AdshHNMT+PEGroups 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
Histamine N-methyltransferase upregulation, cardiac hypertrophy, and heart failureEuropean heart journal · 2026
Summary (written by the submitters)
Metabolites produced during the development of pathological cardiac hypertrophy and heart failure can influence disease progression. Methyl donor S-adenosyl methionine (SAM) levels are decreased in the hypertrophic heart, but related mechanisms and effects remain unknown. Histamine N-methyltransferase (HNMT) uses SAM as a substrate to deactivate histamine into N-methylhistamine.
Read the full summary ↓
Here, we prove that HNMT was upregulated in cardiac tissues from patients with heart failure and post-transverse aortic constriction (TAC) mice as well as phenylephrine (PE)-treated neonatal mouse cardiomyocytes (NMCMs). N-methylhistamine, downstream metabolite of HNMT, was elevated in urine samples from heart failure patients. In mice, cardiomyocyte-specific Hnmt deletion ameliorated pathological cardiac hypertrophy and heart failure caused by TAC or Angiotensin-II infusion. Pharmacological inhibition of HNMT with amodiaquine ameliorated TAC-induced cardiac dysfunction. In contrast, cardiomyocyte-specific Hnmt overexpression caused cardiac dysfunction. Mechanistically, HNMT decreased intracellular SAM levels and interacted with enhancer of zeste homolog2 (EZH2). This interaction blocked EZH2 function and downregulated H3K27me3 modification at the Frizzled-2 (Fzd2) promoter, which increased Fzd2 expression. FZD2 upregulation activated the calcium/calcium–calmodulin (CaM)-dependent protein kinase II (CaMKII) pathway, which mediated the pro-hypertrophic effects of HNMT. This study identified HNMT as a promising therapeutic target for treating pathological cardiac hypertrophy and heart failure.
Published in
Histamine N-methyltransferase upregulation, cardiac hypertrophy, and heart failure
Zhang J, Jiang H, Liu L et al. · European heart journal 2026 · PMID 41568626 · doi:10.1093/eurheartj/ehaf1065
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 GSE307584_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 PRJNA1322343 and SRA study SRP618696. Searching any of these in the dataset finder brings you back here.

Study design
3 × NMCMs AdCon vs 3 × NMCMs AdOE vs 3 × NMCMs AdCon+PE vs 3 × NMCMs AdshHNMT+PE

Supports a between-group comparison across 12 samples.

How we read this: 4 replicated groups read from 12 sample titles; they account for 12 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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