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AMPK-beta1 Activation Induces Fetal Hemoglobin

GSE223925 Homo sapiens (human) Single-cell RNA-seq 12 samples Submitted 2025/05/21 Platform GPL16791
At a glance

Single-cell RNA-seq · human · 12 samples

What it is
Single-cell RNA-seqGene activity measured in thousands of individual cells, so cell types can be told apart. Read from the summary: GEO's own type field only says 'expression profiling by sequencing', so confirm it in the paper.
Organism
Homo sapiens (human)
Samples
12 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
Selective AMPKβ1 activation induces fetal hemoglobin in human erythroid cells and sickle cell mice via the noncanonical NRF2 pathwayScience advances · 2025
Summary (written by the submitters)
Previous studies report that metformin triggers fetal hemoglobin (HbF) induction in human erythroid cells through indirect activation of the AMPK/FOXO3 pathway. Here we investigated the underlying mechanism of HbF induction by direct activation of AMPKβ1 in erythroid cells to understand their potential as safe medication for sickle cell disease (SCD).
Read the full summary ↓
Single-cell RNA sequencing of human bone marrow cells determined that AMPKβ1 predominates in the erythroid lineage compared to AMPKβ2 and expression of AMPKβ1 is mostly restricted to this lineage. Novel selective AMPKβ1 activators greatly increased expression of HbF, activated markers of the noncanonical Nrf2 pathway (phosphorylated ULK1 and SQSTM1), and ultimately decreased sickling of SCD donor CD34+ cells under hypoxia. Confirmation of the noncanonical Nrf2 pathway in AMPKβ1 driven HbF induction was achieved by abolishing increased HbF using a potent and selective inhibitor for SQSTM1/Keap1 complex formation. Preclinical studies in Townes SCD mice treated with PF-06409577, a clinical candidate AMPKβ1 activator, confirmed increased HbF induction and non-canonical Nrf2 pathway activation in erythroid cells, associated with decreased reactive oxidative species in bone marrow and decreased chronic inflammation markers. Based on the narrow tissue expression of AMPKβ1, our study strongly supports AMPKβ1 activators as safe activators of Nrf2 driven HbF induction compared to direct inhibitors of ubiquitous Keap1. Activation of the AMPKβ1/Nrf2 noncanonical pathway may be a promising therapeutic approach for SCD patients.
Published in
Selective AMPKβ1 activation induces fetal hemoglobin in human erythroid cells and sickle cell mice via the noncanonical NRF2 pathway
Hara Y, Lemgart VT, Lessard S et al. · Science advances 2025 · PMID 41259521 · doi:10.1126/sciadv.adx1144
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 GSE223925_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: Single-cell studies usually ship their counts as 10x files (matrix.mtx, barcodes.tsv, features.tsv), an .h5 file, or an .rds / .h5ad object that Seurat or Scanpy can open. Look for those among the supplementary files.

Also filed as BioProject PRJNA929046 and SRA study SRP419862. Searching any of these in the dataset finder brings you back here.

Samples in this study

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