TITLE

Effects of lentiviral infection of mesenchymal stem cells on the expression of octamer transcription factor 4

AUTHOR(S)
JING CHANG; LI TANG; HAN LEI; XIAO-GANG ZHANG; ZHONG ZUO; WEI HUANG; HANG FU
PUB. DATE
November 2014
SOURCE
Molecular Medicine Reports;2014, Vol. 10 Issue 5, p2249
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The present study aimed to investigate the effects of lentiviral infection of human umbilical cord mesenchymal stem cells (hUCMSCs) on the expression of octamer transcription factor 4 (Oct4). hUCMSCs were infected with lentivirus carrying the green fluorescent protein gene (GFP) at different multiplicities of infection (MOI), and the optimal MOI was determined by flow cytometry; the proliferation of non-infected and GFP-carrying lentivirus-infected hUCMSCs was evaluated by the MTT assay; and the expression of the Oct4 gene was measured by quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and immunofluorescence staining in hUCMSCs cultured in vitro for eight weeks. Positive GFP staining of hUCMSCs was estimated at >75% at 48 h following infection with the GFP-carrying lentivirus (MOI = 20); no effect on hUCMSC proliferation was detected by the MTT assay following the infection; immunofluorescence analysis detected positive Oct4 expression in the cell nuclei at two and eight weeks of culture, while the relative expression of Oct4 assessed by qRT-PCR was 0.9075±0.0124. The GFP gene carried by the lentivirus was successfully expressed in hUCMSCs and had no significant effect on Oct4 expression, which lays a solid foundation for future studies investigating gene functions via the use of exogenous markers.
ACCESSION #
99268167

 

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