Analysis of mRNA expression profiles of megakaryocytes from human cord blood CD34+ cells ex vivo expanded using Solexa sequencing / 中国医学科学院学报
Acta Academiae Medicinae Sinicae
; (6): 529-532, 2011.
Article
em Zh
| WPRIM
| ID: wpr-352993
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the mRNA expression profiles of megakaryocytes (MKs) from human cord blood CD34+ cells ex vivo expanded using Solexa technique.</p><p><b>METHODS</b>CD34+ Cells were isolated using density gradient centrifugation and magnetic activated cell sorting. Cultures were stimulated with recombinant human thrombopoietin (100 ng/ml). After 12 days, the MKs fraction was separated from the non-MKs fraction using an anti-CD41 monoclonal antibody by immunomagnetic sorting. The mRNA expression of MKs and non-MKs was detected by Solexa sequencing.</p><p><b>RESULTS</b>We obtained 3 773 147 and 3 533 805 Tags from MKs and non-MKs, respectively. The amounts of unambiguous tags were 3 291 132 and 2 967 947 and those of distinct tags were 197 769 and 245 318. The expression of 1161 genes was up-regulated and that of 902 genes down-regulated. The expression of 2717 tags was up-regulated and that of 1519 tags down-regulated.</p><p><b>CONCLUSIONS</b>MKs and non-MKs have remarkably different mRNA expression profiles. The differential gene-encoded products may be involved in cellular development, adhesion, apoptosis metabolism, intra- and intercellular signal transduction, and immune response. Further studies on this topic may clarify the expression mechanism, signal transduction, and regulation mechanisms.</p>
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Base de dados:
WPRIM
Assunto principal:
RNA Mensageiro
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Megacariócitos
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Células Cultivadas
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Antígenos CD34
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Biologia Celular
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Sangue Fetal
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Transcriptoma
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Genética
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Metabolismo
Limite:
Humans
Idioma:
Zh
Revista:
Acta Academiae Medicinae Sinicae
Ano de publicação:
2011
Tipo de documento:
Article