Abstract
The blood level of erythropoietin (Epo) is often anomalously low in anemic patients with inflammatory or malignant diseases. Therefore, we studied effects of pure recombinant immunomodulatory peptides on Epo formation in cultures of the human hepatoma cell line, HepG2. Interleukin (IL)-1β, IL-1α, and tumor necrosis factor α lowered Epo production with half-maximal inhibition at 2, 5, and 20 U/ml, respectively. IL-6, transforming growth factor β2 and interferon γ did not inhibit. Furthermore, IL-1β (10 U/ml) proved to block Epo formation in isolated serum-free perfused rat kidneys. Proposedly, monokines play a role in the pathogenesis of Epo deficiency in various diseases.
| Original language | English |
|---|---|
| Journal | Life Sciences |
| Volume | 50 |
| Issue number | 4 |
| Pages (from-to) | 301-308 |
| Number of pages | 8 |
| ISSN | 0024-3205 |
| DOIs | |
| Publication status | Published - 1992 |
Funding
This work was supported by the Deutsche Forschungsgemeinschaff (DFG Je 95/6). The authors would like to thank Mrs. Elisabeth Mauch and Mrs. Karin Piccardi for expert technical assistance and Mrs. Ursula Isenberg for secretarial assistance.
Research Areas and Centers
- Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)