The Immunosuppressant Rapamycin Blocks In Vitro Responses to Hematopoietic Cytokines and Inhibits Recovering But Not Steady-State Hematopoiesis In Vivo
The Immunosuppressant Rapamycin Blocks In Vitro Responses to Hematopoietic Cytokines and Inhibits Recovering But Not Steady-State Hematopoiesis In Vivo
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免疫抑制剂雷帕霉素可在体外阻断对造血细胞因子的反应,并在体内抑制恢复但非稳态的造血作用
DOI:
10.1182/blood.v84.5.1543.bloodjournal8451543
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发表时间:
1994
期刊:
影响因子:
20.3
通讯作者:
W. Schuler
中科院分区:
文献类型:
--
作者:
V. Quesniaux;S. Wehrli;C. Steiner;J. Joergensen;Hj Schuurman;P. Herrman;M. Schreier;W. Schuler
The immunosuppressive drug rapamycin suppresses T-cell activation by impairing the T-cell response to lymphokines such as interleukin-2 (IL- 2) and interleukin-4 (IL-4). In addition, rapamycin blocks the proliferative response of cell lines to a variety of hematopoietic growth factors, including interleukin-3 (IL-3), interleukin-6 (IL-6), granulocyte-colony stimulating factor (G-CSF), granulocyte macrophage- colony stimulating factor (GM-CSF), and kit ligand (KL), suggesting that it should be a strong inhibitor of hematopoiesis. In this report, we studied the effects of rapamycin on different hematopoietic cell populations in vitro and in vivo. In vitro, rapamycin inhibited the proliferation of primary bone marrow cells induced by IL-3, GM-CSF, KL, or a complex mixture of factors present in cell-conditioned media. Rapamycin also inhibited the multiplication of colony-forming cells in suspension cultures containing IL-3 plus interleukin-1 (IL-1) or interleukin-11 (IL-11) plus KL. In vivo, treatment for 10 to 28 days with high doses of rapamycin (50 mg/kg/d, orally) had no effect on myelopoiesis in normal mice, as measured by bone marrow cellularity, proliferative capacity, and number of colony-forming progenitors. In contrast, the same treatment strongly suppressed the hematopoietic recovery normally seen 10 days after an injection of 5-fluorouracil (5- FU; 150 mg/kg, intravenously [i.v.]). Thus, rapamycin may be detrimental in myelocompromised individuals. In addition, the results suggest that the rapamycin-sensitive cytokine-driven pathways are essential for hematopoietic recovery after myelodepression, but not for steady-state hematopoiesis.
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影响因子:
20.3
作者:
David E. Harrison;C. Lerner
通讯作者:
David E. Harrison;C. Lerner
DOI:
--
发表时间:
1993
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Terada,N;Franklin,RA;Lucas,JJ;Blenis,J;Gelfand,EW
通讯作者:
Gelfand,EW
DOI:
10.1016/s0006-291x(05)81549-9
发表时间:
1992
影响因子:
3.1
作者:
Terada,N;Lucas,JJ;Szepesi,A;Franklin,RA;Takase,K;Gelfand,EW
通讯作者:
Gelfand,EW
DOI:
10.1016/s0021-9258(18)41602-x
发表时间:
1993-10
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
M. Albers;R. Williams;E. Brown;A. Tanaka;F. Hall;S. Schreiber
通讯作者:
M. Albers;R. Williams;E. Brown;A. Tanaka;F. Hall;S. Schreiber