Erythropoietin (EPO) production in the kidney is regulated by the oxygen-sensing transcription factor HIF-1α, which is degraded under normoxic conditions by HIF-prolyl hydroxylase (HIF-PHD). Inhibition of HIF-PHD by roxadustat leads to increased EPO production, better iron absorption, and amelioration of anemia in chronic kidney disease (CKD).
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http://dx.doi.org/10.1016/j.cell.2019.12.010 | DOI Listing |
Diabetes Metab J
January 2025
NHC Key Laboratory of Hormones and Development, Chu Hsien-I Memorial Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China.
Background: In acute and chronic renal inflammatory diseases, the activation of inflammatory cells is involved in the defect of erythropoietin (EPO) production. Ras guanine nucleotide-releasing protein-4 (RasGRP4) promotes renal inflammatory injury in type 2 diabetes mellitus (T2DM). Our study aimed to investigate the role and mechanism of RasGRP4 in the production of renal EPO in diabetes.
View Article and Find Full Text PDFJ Adv Res
January 2025
School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China. Electronic address:
Introduction: In the environment, mycotoxins and fungicides frequently coexist, potentially causing synergistic risks to organisms. Epoxiconazole (EPO) and aflatoxin B1 (AFB1) are a common fungicide and mycotoxins, respectively, which are widely present in the environment and have toxic effects on multiple organs once entering the organism, but it is still unclear whether the co-exposure has a synergistic toxic effect.
Objectives: This study delves into the molecular mechanisms underlying the co-exposure to EPO and AFB1, emphasizing multi-organ toxicity in female zebrafish (F0 generation) and potential transgenerational impacts on the offspring embryos (F1 generation) through multi-omics approaches.
Our knowledge of which bone marrow cells affect red cell production is still incomplete. To explore the role of osteocytes in the process we performed bulk RNAseq of osteocytes isolated from control and phlebotomized mice. The top-upregulated gene following phlebotomy was , erythroferrone ( ).
View Article and Find Full Text PDFJ Pharm Sci
January 2025
Laboratory of Applied Biochemistry, Division of Biotechnology Review and Research III, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD, USA. Electronic address:
Post translational modifications (PTMs) of proteins play an integral role in maintaining the overall structure and function of proteins including their proper folding, binding, and potency. However, not all PTMs play a positive role in protein drugs as some can lead to product-related impurities that negatively impact protein function. One example of a PTM is trisulfide formation, which appears as a product related species in multiple biologic drug products.
View Article and Find Full Text PDFFront Nephrol
December 2024
Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.
Chronic kidney disease (CKD) patients often suffer from complications such as anemia as the kidney function declines. More than 25% of CKD hemodialysis patients in China are complicated with renal anemia due to renal and hepatic impairment in the production of erythropoietin (EPO). In recent years, prolyl hydroxylase domain (PHD) inhibitors have been approved in China and Japan for the treatment of CKD patients complicated with anemia.
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