Generation of CD1(+)RelB(+) dendritic cells and tartrate-resistant acid phosphatase-positive osteoclast-like multinucleated giant cells from human monocytes

被引:174
作者
Akagawa, KS
Takasuka, N
Nozaki, Y
Komuro, I
Azuma, M
Ueda, M
Naito, M
Takahashi, K
机构
[1] JUNTENDO UNIV,SCH MED,DEPT IMMUNOL,TOKYO 113,JAPAN
[2] KYOTO UNIV,INST VIRUS RES,DEPT PATHOL,KYOTO,JAPAN
[3] NIIGATA UNIV,SCH MED,DEPT PATHOL 2,NIIGATA,JAPAN
[4] KUMAMOTO UNIV,SCH MED,DEPT PATHOL 2,KUMAMOTO 860,JAPAN
关键词
D O I
10.1182/blood.V88.10.4029.bloodjournal88104029
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
We previously showed that granulocyte-macrophage colony-stimulating factor (GM-CSF) and macrophage colony-stimulating factor (M-CSF) stimulate the differentiation of human monocytes into two phenotypically distinct types of macrophages. However, in vivo, not only CSF but also many other cytokines are produced under various conditions. Those cytokines may modulate the differentiation of monocytes by CSFs. In the present study, we showed that CD14(+) adherent human monocytes can differentiate into CD1(+)relB(+) dendritic cells (DC) by the combination of GM-CSF plus interleukin-4 (IL-4) and that they differentiate into tartrate-resistant acid phosphatase (TRAP)-positive osteoclast-like multinucleated giant cells (MGC) by the combination of M-CSF plus IL-4. However, the monocyte-derived DC were not terminally differentiated cells; they could still convert to macrophages in response to M-CSF. Tumor necrosis factor-alpha (TNF-alpha) stimulated the terminal differentiation of the DC by downregulating the expression of the M-CSF receptor, c-fms mRNA, and aborting the potential to convert to macrophages. In contrast to IL-4, interferon-gamma (IFN-gamma) had no demonstrable effect on the differentiation of monocytes. Rather, IFN-gamma antagonized the effect of IL-4 and suppressed the DC and MGC formation induced by GM-CSF + IL-4 and M-CSF + IL-4, respectively. Taken together, these results provide a new aspect to our knowledge of monocyte differentiation and provide evidence that human monocytes are flexible in their differentiation potential and are precursors not only of macrophages but also of CD1(+)relB(+) DC and TRAP-positive MGC. Such a diverse pathway of monocyte differentiation may constitute one of the basic mechanisms of immune regulation. (C) 1996 by The American Society of Hematology.
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页码:4029 / 4039
页数:11
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