TGF-beta increases leukotriene C4 synthase expression in the monocyte-like cell line, THP-1.
TGF-beta increases leukotriene C4 synthase expression in the monocyte-like cell line, THP-1.
复制标题
TGF-β 增加单核细胞样细胞系 THP-1 中白三烯 C4 合酶的表达。
作者:
C. A. Riddick;K. J. Serio;C. R. Hodulik;W. Ring;Mark S. Regan;T. Bigby
The goal of this study was to determine whether cytokines modulate leukotriene C4 (LTC4) synthase expression in mononuclear phagocytes. A panel of cytokines was surveyed for changes in LTC4 synthase mRNA in THP-1 cells. TGF-beta1, -2, and -3 had significant stimulatory effects. The addition of TGF-beta resulted in a time-dependent increase in LTC4 synthase mRNA at 6 h, which persisted through 48 h. Furthermore, this conditioning resulted in an increase in immunoreactive protein for LTC4 synthase through 7 days. TGF-beta conditioning of cells resulted in a time- and dose-dependent increase in stimulated LTC4 synthase activity. Following transient transfection of THP-1 cells with a promoter-reporter construct containing 1.2 kb of the LTC4 synthase promoter, TGF-beta treatment resulted in a 2-fold increase in reporter activity. Conditioning with TGF-beta did not prolong the half-life of LTC4 synthase mRNA, as assessed by RNase protection assays in actinomycin D-treated cells. Cycloheximide exposure experiments revealed that new protein synthesis was not required for the observed stimulatory effect of TGF-beta on LTC4 synthase mRNA. We conclude that LTC4 synthase expression is increased at a transcriptional level by TGF-beta in mononuclear phagocytes.
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DOI:
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发表时间:
1989
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Bigby,TD;Meslier,N
通讯作者:
Meslier,N
影响因子:
4.8
作者:
Hashimoto,M;Gaddy-Kurten,D;Vale,W
通讯作者:
Vale,W
DOI:
10.1164/ajrccm.152.1.7599836
发表时间:
1995
期刊:
American journal of respiratory and critical care medicine.
影响因子:
--
作者:
Penrose,JF;Spector,J;Lam,BK;Friend,DS;Xu,K;Jack,RM;Austen,KF
通讯作者:
Austen,KF
DOI:
10.1152/ajpcell.1997.273.6.c2057
发表时间:
1997
期刊:
The American journal of physiology
影响因子:
--
作者:
Ring,WL;Riddick,CA;Baker,JR;Glass,CK;Bigby,TD
通讯作者:
Bigby,TD
DOI:
10.1172/jci115222
发表时间:
1991
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
OwenJr,WF;Petersen,J;Austen,KF
通讯作者:
Austen,KF