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10.1128/JVI.01229-10 http://scihub22266oqcxt.onion/10.1128/JVI.01229-10 20861249!2976398!20861249     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=20861249&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       J+Virol 2010 ; 84 (23): 12385-96 Nephropedia Template TP {{tp|p=20861249|t=2010. Role of erythropoietin receptor signaling in parvovirus B19 replication in human erythroid progenitor cells |pdf=|usr=}}{{20861249}} gab.com Text Role of erythropoietin receptor signaling in parvovirus B19 replication in human erythroid progenitor cells JO: J Virol http://www.kidney.de/pget.php?&tw=1&pmid=20861249 #FOAvip Parvovirus B19 (B19V) infection is highly restricted to human erythroid progenitor cells. Although previous studies have led to the theory that the basis of this tropism is receptor expression, this has been questioned by more recent observation. In the study reported here, we have investigated the basis of this tropism, and a potential role of erythropoietin (Epo) signaling, in erythroid progenitor cells (EPCs) expanded ex vivo from CD34(+) hematopoietic cells in the absence of Epo (CD36(+)/Epo(-) EPCs). We show, first, that CD36(+)/Epo(-) EPCs do not support B19V replication, in spite of B19V entry, but Epo exposure either prior to infection or after virus entry enabled active B19V replication. Second, when Janus kinase 2 (Jak2) phosphorylation was inhibited using the inhibitor AG490, phosphorylation of the Epo receptor (EpoR) was also inhibited, and B19V replication in ex vivo-expanded erythroid progenitor cells exposed to Epo (CD36(+)/Epo(+) EPCs) was abolished. Third, expression of constitutively active EpoR in CD36(+)/Epo(-) EPCs led to efficient B19V replication. Finally, B19V replication in CD36(+)/Epo(+) EPCs required Epo, and the replication response was dose dependent. Our findings demonstrate that EpoR signaling is absolutely required for B19V replication in ex vivo-expanded erythroid progenitor cells after initial virus entry and at least partly accounts for the remarkable tropism of B19V infection for human erythroid progenitors. Twit Text FOAVip Role of erythropoietin receptor signaling in parvovirus B19 replication in human erythroid progenitor cells ????J Virol http://www.kidney.de/pget.php?&tw=1&pmid=20861249 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=20861249 #FOAvip English Wikipedia <ref>{{Cite pmid|20861249}}</ref> Role of erythropoietin receptor signaling in parvovirus B19 replication in human erythroid progenitor cells #MMPMID20861249 Chen AY; Guan W; Lou S; Liu Z; Kleiboeker S; Qiu J J Virol 2010[Dec]; 84 (23): 12385-96 PMID20861249show ga Parvovirus B19 (B19V) infection is highly restricted to human erythroid progenitor cells. Although previous studies have led to the theory that the basis of this tropism is receptor expression, this has been questioned by more recent observation. In the study reported here, we have investigated the basis of this tropism, and a potential role of erythropoietin (Epo) signaling, in erythroid progenitor cells (EPCs) expanded ex vivo from CD34(+) hematopoietic cells in the absence of Epo (CD36(+)/Epo(-) EPCs). We show, first, that CD36(+)/Epo(-) EPCs do not support B19V replication, in spite of B19V entry, but Epo exposure either prior to infection or after virus entry enabled active B19V replication. Second, when Janus kinase 2 (Jak2) phosphorylation was inhibited using the inhibitor AG490, phosphorylation of the Epo receptor (EpoR) was also inhibited, and B19V replication in ex vivo-expanded erythroid progenitor cells exposed to Epo (CD36(+)/Epo(+) EPCs) was abolished. Third, expression of constitutively active EpoR in CD36(+)/Epo(-) EPCs led to efficient B19V replication. Finally, B19V replication in CD36(+)/Epo(+) EPCs required Epo, and the replication response was dose dependent. Our findings demonstrate that EpoR signaling is absolutely required for B19V replication in ex vivo-expanded erythroid progenitor cells after initial virus entry and at least partly accounts for the remarkable tropism of B19V infection for human erythroid progenitors. |Blotting, Southern[MESH] |Blotting, Western[MESH] |CD36 Antigens/metabolism[MESH] |Erythroid Precursor Cells/*virology[MESH] |Flow Cytometry[MESH] |Fluorescent Antibody Technique[MESH] |Genetic Vectors/genetics[MESH] |Humans[MESH] |Janus Kinase 2/metabolism[MESH] |Lentivirus[MESH] |Parvoviridae Infections/*physiopathology[MESH] |Parvovirus B19, Human/*physiology[MESH] |Phosphorylation/drug effects[MESH] |RNA, Small Interfering[MESH] |Receptors, Erythropoietin/*metabolism[MESH] |Reverse Transcriptase Polymerase Chain Reaction[MESH] |Signal Transduction/*physiology[MESH] |Tyrphostins/pharmacology[MESH] |Viral Tropism/*physiology[MESH]Role of erythropoietin receptor signaling in parvovirus B19 replicatio(epmc).pdf DeepDyve Pubget Overpricing