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
in Chinese
| WPRIM
| ID: wpr-352993
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>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
RNA, Messenger
/
Megakaryocytes
/
Cells, Cultured
/
Antigens, CD34
/
Cell Biology
/
Fetal Blood
/
Transcriptome
/
Genetics
/
Metabolism
Limits:
Humans
Language:
Chinese
Journal:
Acta Academiae Medicinae Sinicae
Year:
2011
Type:
Article
Similar
MEDLINE
...
LILACS
LIS