نتایج جستجو برای: epo
تعداد نتایج: 3979 فیلتر نتایج به سال:
To purify human erythropoietin-binding protein (Epo-bp), the recombinant vector JYL26 was constructed by inserting human Epo-receptor cDNA by PCR into a pGEX-2T plasmid vector with a thrombin cleavage site. EpoRex-th fusion protein, containing glutathione-S-transferase (GST) and Epo-bp, was purified by glutathione-affinity chromatography. Biologically active pure human Epo-bp (MW=29 kDa) was th...
Erythropoietin primarily serves as an essential growth factor for erythrocyte precursor cells. However, there is increasing evidence that erythropoietin (EPO)/EPO receptor (EPO-R) signaling operates as a potential tissue-protective system outside the bone marrow. Arguing that growing hair follicles (HF) are among the most rapidly proliferating tissues, we have here explored whether human HFs ar...
Erythropoietin (EPO) is the principal hormone regulating the proliferation of erythroid precursors and their differentiation into erythrocytes. Binding of ligand to the cell-surface EPO-R (EPO receptor) induces dimerization and JAK2 (Janus kinase 2)-mediated tyrosine phosphorylation of the receptor. Less than 1% of the EPO-Rs are displayed on the cell surface; most of the receptor molecules are...
Iron deficiency anemia is one of the essential problems in hemodialysis patients and with presence of iron deficiency, EPO does not have any effect on hematocrit(HCT) level and transferrin saturation percentage(TSP). However, injection of IV iron together with EPO improves responses to anemia treatment. The aim of this study was to determine the effect of iron(oral or IV) prescription...
Control of intensity and duration of erythropoietin (Epo) signaling is necessary to tightly regulate red blood cell production. We have recently shown that the ubiquitin/proteasome system plays a major role in the control of Epo-R signaling. Indeed, after Epo stimulation, Epo-R is ubiquitinated and its intracellular part is degraded by the proteasome, preventing further signal transduction. The...
We have generated four high affinity monoclonal antibodies (MoAbs) to recombinant human erythropoietin (EPO). All four MoAbs immunoprecipitate radioiodinated native EPO, and the concentrations of MoAbs required for maximum binding range from 10 nmol/L to 100 nmol/L. Two MoAbs, designated Group I MoAbs, bind to an epitope within the N-terminal 20 amino acids of EPO and also immunoprecipitate sod...
Langendorff-perfused rat hearts treated with EPO exhibited significantly improved postischemic recovery of left ventricular developed pressure (LVDP) and reduced infarct size compared with control hearts. Perfusion with the mitogen/extracellular signal-regulated kinase (MEK) inhibitor U0126 just before and concomitant with EPO treatment abolished EPO-induced phosphorylation of the MEK substrate...
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