Unknown

Dataset Information

0

Mutant glucocorticoid receptor binding elements on the interleukin-6 promoter regulate dexamethasone effects.


ABSTRACT:

Background

Glucocorticoids (GCs) have been extensively used as essential modulators in clinical infectious and inflammatory diseases. The GC receptor (GR) is a transcription factor belonging to the nuclear receptor family that regulates anti-inflammatory processes and releases pro-inflammatory cytokines, such as interleukin (IL)-6.

Results

Five putative GR binding sites and other transcriptional factor binding sites were identified on theIL-6 promoter, and dexamethasone (DEX) was noted to reduce the lipopolysaccharide (LPS)-induced IL-6 production. Among mutant transcriptional factor binding sites, nuclear factor-kappa B (NF-κB), activator protein (AP)-1, and specificity protein (Sp)1-2 sites reduced basal and LPS-induced IL-6 promoter activities through various responses. The second GR binding site (GR2) was noted to play a crucial role in both basal and inducible promoter activities in LPS-induced inflammation.

Conclusions

We concluded that selective GR2 modulator might exert agonistic and antagonistic effects and could activate crucial signaling pathways during the LPS-stimulated inflammatory process.

SUBMITTER: Chang WT 

PROVIDER: S-EPMC7995394 | biostudies-literature |

REPOSITORIES: biostudies-literature

Similar Datasets

| S-EPMC5113289 | biostudies-literature
| S-EPMC10251336 | biostudies-literature
| S-EPMC5889392 | biostudies-literature
| S-EPMC4792232 | biostudies-literature
| S-EPMC10464093 | biostudies-literature
| S-EPMC8617649 | biostudies-literature
2015-12-17 | GSE61878 | GEO
| S-EPMC5291246 | biostudies-literature
| S-EPMC7865994 | biostudies-literature
2015-12-17 | E-GEOD-61878 | biostudies-arrayexpress