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Related Experiment Video

Updated: Jul 5, 2026

Enzymatic Synthesis of Epoxidized Metabolites of Docosahexaenoic, Eicosapentaenoic, and Arachidonic Acids

Enzymatic Synthesis of Epoxidized Metabolites of Docosahexaenoic, Eicosapentaenoic, and Arachidonic Acids

Published on: June 28, 2019

Where the Epo cells are.

Constance Tom Noguchi¹

¹National Institutes of Health, USA.

|May 10, 2008

Summary

Researchers identified kidney cells that produce erythropoietin (Epo) using a GFP transgene in mice. The number of these neuronal marker-expressing cells correlates with Epo levels and increases under hypoxia.

Area of Science:

Nephrology
Hematology
Cell Biology

Background:

Erythropoietin (Epo) is a key hormone regulating red blood cell production.
The precise location and regulation of Epo-producing cells in the kidney remain incompletely understood.

Discussion:

Obara and colleagues utilized a green fluorescent protein (GFP) transgene to specifically label kidney Epo-producing cells in a mouse model.
These identified cells reside in the kidney's interstitial space.
The study observed that these cells express neuronal markers, suggesting a potential link between neuronal and Epo-producing cell characteristics.

Key Insights:

A direct correlation was found between the number of these marked kidney Epo-producing cells and plasma Epo levels.
Hypoxic conditions led to an increase in the number of these cells, indicating their role in the hypoxic response.

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Last Updated: Jul 5, 2026

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Isolation and Profiling of Human Primary Mesenteric Arterial Endothelial Cells at the Transcriptome Level

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Outlook:

This research provides a novel tool for studying Epo production and kidney cell biology.
Further investigation into the neuronal markers expressed by these cells could reveal new regulatory mechanisms of erythropoiesis.