Active Erythropoietin (EPO)
EP; Epoetin; Erythropoetin; Hematopoietin; Hemopoietin
- Product No.APA028Hu61
- Organism SpeciesHomo sapiens (Human) Same name, Different species.
- Buffer FormulationPBS, pH7.4, containing 0.01% SKL, 1mM DTT, 5% Trehalose and Proclin300.
- Traits Freeze-dried powder
- Purity> 95%
- Isoelectric Point8.8
- ApplicationsCell culture; Activity Assays.
- DownloadInstruction Manual
- UOM 10µg50µg 200µg 1mg 5mg
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Figure. The binding activity of EPO with EPOR.
Erythropoietin (EPO), also known as hematopoietin or hemopoietin, is a glycoprotein cytokine secreted by the kidney in response to cellular hypoxia. Erythropoietin is an essential hormone for red blood cell production. Its primary effect on red blood cell progenitors and precursors (which are found in the bone marrow in humans) by promoting their survival through protecting these cells from apoptosis, or cell death. EPO is the primary erythropoietic factor that cooperates with various other growth factors involved in the development of erythroid lineage from multipotent progenitors. Besides, Erythropoietin Receptor (EPOR) has been identified as an interactor of EPO, thus a binding ELISA assay was conducted to detect the interaction of recombinant human EPO and recombinant human EPOR. Briefly, EPO were diluted serially in PBS, with 0.01% BSA (pH 7.4). Duplicate samples of 100uL were then transferred to EPOR-coated microtiter wells and incubated for 2h at 37℃. Wells were washed with PBST and incubated for 1h with anti-EPO pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody, wells were aspirated and washed 3 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37℃. Finally, add 50µL stop solution to the wells and read at 450nm immediately. The binding activity of EPO and EPOR was shown in Figure 1, and this effect was in a dose dependent manner.
Figure. Cell proliferation of TF-1 cells after stimulated with EPO.<br/>To test the effect of EPO on cell proliferation, TF-1 cells were seeded into triplicate wells of 96-well plates at a density of 5,000 cells/well with 1% serum standard 1640 including various concentrations of recombinant human EPO. After incubated for 72h, cells were observed by inverted microscope and cell proliferation was measured by Cell Counting Kit-8 (CCK-8). Briefly, 10µL of CCK-8 solution was added to each well of the plate, then the absorbance at 450nm was measured using a microplate reader after incubating the plate for 1-4 hours at 37℃. Proliferation of TF-1 cells after incubation with EPO for 72h observed by inverted microscope was shown in Figure 1. Cell viability was assessed by CCK-8 (Cell Counting Kit-8 ) assay after incubation with recombinant EPO for 72h. The result was shown in Figure 2. It was obvious that EPO significantly increased cell viability of TF-1 cells.<br/>(A) TF-1 cells cultured in 1640, stimulated with 50ng/mL EPO for 72h; <br/>(B) Unstimulated TF-1 cells cultured in1640 for 72h.
Figure. Cell proliferation of TF-1 cells after stimulated with EPO.
Reconstitute in 10mM PBS (pH7.4) to a concentration of 0.1-1.0 mg/mL. Do not vortex.
Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.
The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.
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- Spike RBD Protein (S-RBD)
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|Endocrinology||Prenatal Glucocorticoid Overexposure Causes Permanent Increases in Renal Erythropoietin Expression and Red Blood Cell Mass in the Rat Offspring Endo: source|
|Journal of Ethnopharmacology||Inhibitory effect of polysaccharides isolated from Angelica sinensis on hepcidin expression PubMed: 21333724|
|PLOS ONE||CD98 Positive Eosinophils Contribute to T Helper 1 Pattern Inflammation PlosOne: Source|
|The Journal of Clinical Endocrinology & Metabolism||Alterations of Circulating Endothelial Cell and Endothelial Progenitor Cell Counts around the Ovulation PubMed: 22948762|
|Experimental & Molecular Medicine||Long-term and stable correction of uremic anemia by intramuscular injection of plasmids containing hypoxia-regulated system of erythropoietin expression PubMed: PMC3509184|
|Biochem Biophys Res Commun.||Reevaluation of erythropoietin production by the nephron Pubmed:24832733|
|Nutrition.||Carbohydrate and glutamine supplementation modulates the Th1/Th2 balance after exercise performed at a simulated altitude of 4500 m. Pubmed:2528040|
|J Appl Physiol (1985).||Decreased plasma soluble erythropoietin receptor in high-altitude excessive erythrocytosis and Chronic Mountain Sickness Pubmed:25324511|
|Expert Rev Proteomics||Plasma hepcidin in early-stage breast cancer patients: no relationship with interleukin-6, erythropoietin and erythroferrone PubMed: 26496240|
|Oncotarget||KIAA0101 is associated with human renal cell carcinoma proliferation and migration induced by erythropoietin pubmed:26575329|
|international journal of molecular sciences||Expression of Iron-Related Proteins Differentiate Non-Cancerous and Cancerous Breast Tumors. pubmed:28216608|
|Veterinary Clinical Pathology||Occult gastrointestinal bleeding is a common finding in dogs with chronic kidney disease pubmed:28186645|
|IOS Press Content Library||An Intranasal Formulation of Erythropoietin (Neuro-EPO) Prevents Memory Deficits and Amyloid Toxicity in the APPSwe Transgenic Mouse Model of Alzheimer's … articles:journal-of-alzheimers-disease|
|Oxidative Medicine and Cellular Longevity||Acidic Polysaccharide from Angelica sinensis Reverses Anemia of Chronic Disease Involving the Suppression of Inflammatory Hepcidin and NF-κB Activation pubmed:29147463|
|PLoS Neglected Tropical Diseases||Functional and phenotypic evaluation of eosinophils from patients with the acute form of paracoccidioidomycosis pubmed:28489854|
|Neurochemistry International||Effects of erythropoietin on astrocytes and brain endothelial cells in primary culture during anoxia depend on simultaneous signaling by other cytokines and on duration of anoxia S0197018617304783|
|Pesquisa Veterinária Brasileira||Relation between anaemia and bone marrow features and serum erythropoietin in dogs with chronic kidney disease 10.1590/s0100-736x2017000600011|
|Medical Journal Armed Forces India||Study of acute hypoxia markers in healthy subjects: Utility in post-crash investigation 10.1016/j.mjafi.2017.04.003|
|Neurochemistry International||Effects of erythropoietin on astrocytes and brain endothelial cells in primary culture during anoxia depend on simultaneous signaling by other cytokines and on … Pubmed:29180303|
|Clinical and Experimental Medicine||Increased NGAL level associated with iron store in chronic kidney disease with anemia Pubmed:29909502|
|Bulletin of Experimental Biology and Medicine||Signal Mechanism of the Protective Effect of Combined Preconditioning by Amtizole and Moderate Hypoxia Pubmed:29308565|
|Bulletin of Experimental Biology and Medicine||Expression of Hif-1α, Nf-κb, and Vegf Genes in the Liver and Blood Serum Levels of HIF-1α, Erythropoietin, VEGF, TGF-β, 8-Isoprostane, and Corticosterone in Wistar Rats with High and Low Resistance to Hypoxia. Corticosterone in … Pubmed: 30353332|
|FASEB JOURNAL||High-altitude hypoxia decreases plasma erythropoietin soluble receptor (sEpoR) concentration in humans|
|Journal of Functional Foods||Dietary gelatin enhances non-heme iron absorption possibly via regulation of systemic iron homeostasis in rats|
|博士论文||PHYSIOLOGICAL ADAPTATIONS TO HEAT ACCLIMATION; REPERCUSSIONS ON CYCLING PERFORMANCE|
|Nutrition||Effects of carbohydrate and glutamine supplementation on cytokine production by monocytes after exercise in hypoxia: a crossover, randomized and double-blind … Pubmed: 31743809|
|BRITISH JOURNAL OF HAEMATOLOGY||Disordered serum erythroferrone and hepcidin levels as indicators of the spontaneous abortion occurrence during early pregnancy in humans Pubmed: 32866306|
|JCI Insight.||Increased FGF-23 levels are linked to ineffective erythropoiesis and impaired bone mineralization in myelodysplastic syndromes Pubmed: 32759495|
|Blood Cells, Molecules, and Diseases||EPAS1 regulates proliferation of erythroblasts in chronic mountain sickness Pubmed: 32470757|
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