Gene activation and EPO
نویسندگان
چکیده
منابع مشابه
Emerging EPO and EPO receptor regulators and signal transducers.
As essential mediators of red cell production, erythropoietin (EPO) and its cell surface receptor (EPO receptor [EPOR]) have been intensely studied. Early investigations defined basic mechanisms for hypoxia-inducible factor induction of EPO expression, and within erythroid progenitors EPOR engagement of canonical Janus kinase 2/signal transducer and activator of transcription 5 (JAK2/STAT5), ra...
متن کاملAnti-erythropoietin (EPO) receptor monoclonal antibodies distinguish EPO-dependent and EPO-independent erythroid progenitors in polycythemia vera.
Erythroid progenitor cells isolated from patients with polycythemia vera (PV) proliferate and differentiate in methylcellulose in the absence of exogenous erythropoietin (EPO). To investigate the potential role of the erythropoietin receptor (EPO-R) in the pathogenesis of PV, we cultured bone marrow-derived or peripheral blood-derived erythroid progenitors in the presence of neutralizing monocl...
متن کاملAutocrine stimulation by erythropoietin (Epo) requires Epo secretion.
Erythropoietin (Epo) autocrine stimulation has been implicated in erythroblastic leukemia. To examine whether this stimulation could occur intracellularly, we developed Epo autocrine models of stimulation in the human pluripotent UT-7 cell line. Retroviral expression of Epo totally abolished the growth factor requirement of UT-7 cells. Autonomous proliferation was not cell density-dependent and...
متن کاملLnk inhibits erythropoiesis and Epo-dependent JAK2 activation and downstream signaling pathways.
Erythropoietin (Epo), along with its receptor EpoR, is the principal regulator of red cell development. Upon Epo addition, the EpoR signaling through the Janus kinase 2 (JAK2) activates multiple pathways including Stat5, phosphoinositide-3 kinase (PI-3K)/Akt, and p42/44 mitogen-activated protein kinase (MAPK). The adaptor protein Lnk is implicated in cytokine receptor signaling. Here, we showed...
متن کاملSelected anti-Epo receptor antibodies predict Epo receptor expression.
In an article recently published in Blood, Elliott et al 1 reported that commercially available anti–erythropoietin receptor (anti-EpoR) antibodies are hardly usable to predict EpoR expression because of their low specificity and affinity. Although we agree with the authors that many of these antibodies work poorly, we strongly disagree with them concerning 2 main points: (1) the ability of San...
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ژورنال
عنوان ژورنال: Nature Biotechnology
سال: 1997
ISSN: 1087-0156,1546-1696
DOI: 10.1038/nbt0697-497