title: [Expression of Toll-like receptors in human bone marrow mesenchymal stem cells].
abstract: The aim of this study was to explore the characteristics of Toll-like receptor expression in mesenchymal stem cells derived from bone marrow of healthy donor (BM-MSCs). BM-MSCs were isolated from bone marrow of healthy donor by Ficoll method. Expressions of CD34, CD45, HLA-DR, CD44 and CD71 in BM-MSCs were detected by flow cytometry. CD71 in BM-MSCs was assayed by immunocytochemistry. The adipocyte and osteoblast induction of BM-MSCs were detected by alizarin red stain and oil red stain respectively. TLR 1 - 10 mRNA levels in BM-MSCs were evaluated by semiquantitative RT-PCR. The results showed that expressions of CD34, CD45 and HLA-DR in BM-MSC were negative while the expressions of CD44 and CD71 were positive. CD71 in BM-MSCs was positive. After induced by osteoblast and adipocyte inductor, BM-MSCs were positive for alizarin red staining and oil red staining respectively. All of TLR 1 - 10 mRNA were found in BM-MSCs with high expression levels of TLR2, TLR3, TLR4, TLR7, TLR8, TLR9 and low expression levels of TLR1, TLR5, TLR6, TLR10. In conclusion, different levels of TLR 1 - 10 mRNA were expressed in BM-MSCs of healthy donor.
authors: Hematologic Disease Center, Lanzhou Military Area Lanzhou General Hosipital, Lanzhou, Gansu Province, China.
authors: Xiao-Xia
authors: XX
authors: He
authors: Hai
authors: H
authors: Bai
authors: Guo-Rong
authors: GR
authors: Yang
authors: Yong-Jie
authors: YJ
authors: Xue
authors: Ya-Nan
authors: YN
authors: Su
mesh_terms: D001854:Bone Marrow Cells / Q000378:metabolism*; D002454:Cell Differentiation; D002478:Cells, Cultured; D006801:Humans; D059630:Mesenchymal Stem Cells / Q000378:metabolism*; D012333:RNA, Messenger / Q000235:genetics; D051193:Toll-Like Receptors / Q000378:metabolism*
chemical_list: D012333:RNA, Messenger; D051193:Toll-Like Receptors