<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sancilio, S</style></author><author><style face="normal" font="default" size="100%">Di Giacomo, V</style></author><author><style face="normal" font="default" size="100%">Quaglietta, A M</style></author><author><style face="normal" font="default" size="100%">Iacone, A</style></author><author><style face="normal" font="default" size="100%">Angelucci, D</style></author><author><style face="normal" font="default" size="100%">Tatasciore, U</style></author><author><style face="normal" font="default" size="100%">Rana, R A</style></author><author><style face="normal" font="default" size="100%">Cataldi, A</style></author><author><style face="normal" font="default" size="100%">Zauli, G</style></author><author><style face="normal" font="default" size="100%">Di Pietro, R</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">TRAIL promotes a pro-survival signal in erythropoietin-deprived human erythroblasts through the activation of an NF-kB/IkBalpha pathway.</style></title><secondary-title><style face="normal" font="default" size="100%">J Biol Regul Homeost Agents</style></secondary-title><alt-title><style face="normal" font="default" size="100%">J. Biol. Regul. Homeost. Agents</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Cell Survival</style></keyword><keyword><style  face="normal" font="default" size="100%">Erythroblasts</style></keyword><keyword><style  face="normal" font="default" size="100%">Erythropoietin</style></keyword><keyword><style  face="normal" font="default" size="100%">Gene Expression Regulation</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">I-kappa B Kinase</style></keyword><keyword><style  face="normal" font="default" size="100%">Jurkat Cells</style></keyword><keyword><style  face="normal" font="default" size="100%">NF-kappa B</style></keyword><keyword><style  face="normal" font="default" size="100%">Peptides</style></keyword><keyword><style  face="normal" font="default" size="100%">TNF-Related Apoptosis-Inducing Ligand</style></keyword><keyword><style  face="normal" font="default" size="100%">Tumor Necrosis Factor Decoy Receptors</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2011 Jul-Sep</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">25</style></volume><pages><style face="normal" font="default" size="100%">375-86</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The biological activity of TNF-related apoptosis inducing ligand (TRAIL) was analyzed in primary human erythroblasts derived from mononuclear cells of blood donors, kept in culture in the presence of 20 percent foetal calf serum, growth factors (EPO, SCF, IL-3) and glucocorticoids (10-6 M dexamethasone, 10-6 M oestradiol) or under growth factor and serum starvation. In the presence of growth factors and serum, primary erythroblasts showed a differential expression of TRAIL-Receptors (Rs) at various degrees of maturation and responded to TRAIL treatment with a mild cytotoxicity. On the other hand, in the absence of serum and growth factors, TRAIL treatment unexpectedly up-regulated TRAIL-R4 decoy receptor and promoted erythroblast survival. The concomitant activation of NF-kB/IkB survival pathway was detected with Western blotting and immunofluorescence procedures and confirmed by experiments performed with SN50, a pharmacological inhibitor of the NF-kB/IkB pathway. Our study indicates that TRAIL has a twofold activity on erythroid lineages: it induces a mild erythroid cell cytotoxicity in the presence of serum and growth factors, while it promotes erythroid cell survival through the activation of the NF-kB/IkB pathway under starvation conditions.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/22023762?dopt=Abstract</style></custom1></record></records></xml>