Selective Inhibition of Monocyte Chemoattractant Protein-1 Gene Expression in Human Embryonal Kidney Cells by Specific Triple Helix-Forming Oligonucleotides1
Selective Inhibition of Monocyte Chemoattractant Protein-1 Gene Expression in Human Embryonal Kidney Cells by Specific Triple Helix-Forming Oligonucleotides1
复制标题
特异性三螺旋形成寡核苷酸选择性抑制人胚肾细胞中单核细胞趋化蛋白 1 基因表达1
DOI:
10.4049/jimmunol.164.4.2070
复制
发表时间:
2000
期刊:
影响因子:
--
通讯作者:
H. Radeke
中科院分区:
文献类型:
--
作者:
Petra Marchand;K. Resch;H. Radeke
Monocyte chemoattractant protein-1 (MCP-1) is a chemokine that is expressed by a variety of tissue cells in response to inflammatory stimuli, such as IL-1β, TNF-α, and IFN-γ. A major function of MCP-1 is the recruitment and activation of monocytes and T lymphocytes. Overexpression of MCP-1 has been implicated in a number of diseases, including glomerulonephritis and rheumatoid arthritis, indicating that the modulation of MCP-1 activity and/or expression is a desired therapeutic strategy. In the present study, our aim was to test whether the MCP-1 expression could be inhibited at the transcriptional level using triple helix-forming oligonucleotides (TFOs). We designed a TFO targeted to the SP-1 binding site in the human MCP-1 gene promoter. Gel mobility shift assays demonstrated that the phosphodiester TFO formed a sequence-specific triplex with its dsDNA target with an EC50 of ∼1.9 × 10−7 M. The corresponding phosphorothioated oligonucleotide was also effective in this assay with an 8-fold higher EC50 value. Binding of the TFO to the target DNA prevented the binding of rSP-1 and of nuclear proteins in vitro. The TFO could also partially inhibit endogenous MCP-1 gene expression in cultured human embryonic kidney cells. Treatment of TNF-α-stimulated human embryonic kidney 293 cells with the TFO inhibited the secretion of MCP-1 in a dose-dependent manner (up to 45% at 5 μM oligonucleotide). The inhibition of MCP secretion was caused at the level of gene transcription, because MCP-1 mRNA levels in oligonucleotide-treated cells were also decreased by ∼40%.
登录
查看更多内容
影响因子:
13.2
作者:
Rovin, BH;Doe, N;Tan, LC
通讯作者:
Tan, LC
影响因子:
14.9
作者:
Frank M. Orson;Douglas W. Thomas;W. Michael McShan;D. Kessler;Michael E. Hogan
通讯作者:
Frank M. Orson;Douglas W. Thomas;W. Michael McShan;D. Kessler;Michael E. Hogan
DOI:
--
发表时间:
1994-10
期刊:
Laboratory investigation; a journal of technical methods and pathology
影响因子:
--
作者:
Rovin Bh;M. Rumancik;L. Tan;J. Dickerson
通讯作者:
Rovin Bh;M. Rumancik;L. Tan;J. Dickerson
DOI:
10.1006/clin.1996.0105
发表时间:
1996
期刊:
Clinical immunology and immunopathology
影响因子:
--
作者:
Moxey-Mims,MM;Nielsen,L;Noble,B;Lwebuga-Mukasa,JS
通讯作者:
Lwebuga-Mukasa,JS
影响因子:
19.6
作者:
Stahl,RA;Thaiss,F;Disser,M;Helmchen,U;Hora,K;Schlöndorff,D
通讯作者:
Schlöndorff,D