TY - JOUR
T1 - Cytokine interactions in mesenchymal stem cells from cord blood
AU - Liu, Chi Hsien
AU - Hwang, Shiaw Min
PY - 2005/12/21
Y1 - 2005/12/21
N2 - We used cytokine protein array to analyze the expression of cytokines from human cord blood-derived mesenchymal stem cells (CB-MSCs). Several cytokines, interleukins (IL), and growth factors, including ENA-78, GM-CSF, GRO, IL-1β, IL-6, IL-8, MCP-1, OSM, VEGF, FGF-4, FGF-7, FGF-9, GCP-2, IGFBP-1, IGFBP-2, IGFBP-3, IGFBP-4, IP-10, LIF, MIF, MIP-3α, osteoprotegerin, PARC, PIGF, TGF-β2, TGF-β3, TIMP-1, as well as TIMP-2, were secreted by CB-MSCs, while IL-4, IL-5, IL-7, IL-13, TGF-β1, TNF-α, and TNF-β were not expressed under normal growth conditions. IL-6, IL-8, TIMP-1, and TIMP-2 were the most abundant interleukins expressed by CB-MSCs. A set of growth factors were selected to evaluate their stimulatory effects on the IL6 secretion for CB-MSCs. IL-1β was the most important factor inducing CB-MSC to secret IL-6. The mechanism by which IL-1β promoted IL-6 expression in CB-MSCs was studied. By using various inhibitors of signal transduction, we found that activation of p38 mitogen-activated protein kinases (MAPK) and MAPK kinase (MEK) is essential in the IL-1β stimulated signaling cascade which leads to the increase in IL-6 synthesis. Additionally, continuous supplement of IL-1β in the CB-MSCs culture will facilitate adipogenic maturation of CB-MSCs as evidenced by the presence of oil drops in the CB-MSCs and secretion of leptin, a molecule marker of adipocytes. These results strongly suggest that cytokine induction and signal transduction are important for the differentiation of CB-MSCs.
AB - We used cytokine protein array to analyze the expression of cytokines from human cord blood-derived mesenchymal stem cells (CB-MSCs). Several cytokines, interleukins (IL), and growth factors, including ENA-78, GM-CSF, GRO, IL-1β, IL-6, IL-8, MCP-1, OSM, VEGF, FGF-4, FGF-7, FGF-9, GCP-2, IGFBP-1, IGFBP-2, IGFBP-3, IGFBP-4, IP-10, LIF, MIF, MIP-3α, osteoprotegerin, PARC, PIGF, TGF-β2, TGF-β3, TIMP-1, as well as TIMP-2, were secreted by CB-MSCs, while IL-4, IL-5, IL-7, IL-13, TGF-β1, TNF-α, and TNF-β were not expressed under normal growth conditions. IL-6, IL-8, TIMP-1, and TIMP-2 were the most abundant interleukins expressed by CB-MSCs. A set of growth factors were selected to evaluate their stimulatory effects on the IL6 secretion for CB-MSCs. IL-1β was the most important factor inducing CB-MSC to secret IL-6. The mechanism by which IL-1β promoted IL-6 expression in CB-MSCs was studied. By using various inhibitors of signal transduction, we found that activation of p38 mitogen-activated protein kinases (MAPK) and MAPK kinase (MEK) is essential in the IL-1β stimulated signaling cascade which leads to the increase in IL-6 synthesis. Additionally, continuous supplement of IL-1β in the CB-MSCs culture will facilitate adipogenic maturation of CB-MSCs as evidenced by the presence of oil drops in the CB-MSCs and secretion of leptin, a molecule marker of adipocytes. These results strongly suggest that cytokine induction and signal transduction are important for the differentiation of CB-MSCs.
KW - Cord blood
KW - Cytokine
KW - Interleukin-1β
KW - Interleukin-6
KW - Mesenchymal stem cell
UR - http://www.scopus.com/inward/record.url?scp=31744440551&partnerID=8YFLogxK
U2 - 10.1016/j.cyto.2005.11.003
DO - 10.1016/j.cyto.2005.11.003
M3 - 文章
C2 - 16377203
AN - SCOPUS:31744440551
SN - 1043-4666
VL - 32
SP - 270
EP - 279
JO - Cytokine
JF - Cytokine
IS - 6
ER -