Neurogenic differentiation of murine adipose derived stem cells transfected with EGFP in vitro.
Some studies indicate that adipose derived stem cells (ADSCs) can differentiate into adipogenic, chondrogenic, myogenic, and osteogenic cells in vitro. However, whether ADSCs can be induced to differentiate into neural cells in vitro has not been clearly demonstrated. In this study, the ADSCs isolated from the murine adipose tissue were cultured and transfected with the EGFP gene, and then the cells were induced for neural differentiation. The morphology of those ADSCs began to change within two days which developed into characteristics of round cell bodies with several branching extensions, concomitantly expressing EGFP fluorescence. Approximately 60% of the total cell populations were bipolar or multipolar in shape. Some of them appeared to make contact with their neighboring cells. RT-PCR, Western blot and Immunocytochemistry revealed that the expression levels of the markers of neurons and oligodendrocytes such as MAP2, NF-70, Neu N and RIP upon neural induction were increased, but the expression of the special marker of astrocytes, GFAP, was undetectable until 96 h after induction when a small signal was observed. It was concluded that the ADSCs transfected with EGFP possessed the ability to undergo morphologic and phenotypic changes consistent with neural differentiation in vitro. It suggests that these cells might provide an ideal source for further stem cell research with possible therapeutic application for spinal cord injury.
Department of Orthopedics, Huazhong University of Science and Technology, Wuhan, 430030, China. hbycfz@yahoo.com.cn
Zhong
Z
Fang
Qin
Q
Yang
Wei
W
Xiong
Guanghui
G
Li
Jun
J
Xiao
Fengjing
F
Guo
Feng
F
Li
Anmin
A
Chen
D000273:Adipose Tissue / Q000166:cytology*; D000818:Animals; D002454:Cell Differentiation; D002478:Cells, Cultured; D005260:Female; D049452:Green Fluorescent Proteins / Q000096:biosynthesis / Q000235:genetics*; D008297:Male; D009474:Neurons / Q000166:cytology*; D051381:Rats; D017207:Rats, Sprague-Dawley; D013119:Spinal Cord Injuries / Q000628:therapy; D013234:Stem Cells / Q000166:cytology*; D014162:Transfection
C485184:enhanced green fluorescent protein; D049452:Green Fluorescent Proteins