Resveratrol attenuates NF-κB-binding activity but not cytokine production in mechanically ventilated mice.
Acta Anaesthesiol Scand
; 58(4): 487-94, 2014 Apr.
Article
in En
| MEDLINE
| ID: mdl-24571360
ABSTRACT
BACKGROUND:
Mechanical ventilation (MV) can result in inflammation and subsequent lung injury. Toll-like receptor (TLR)4 and NF-κB are proposed to play a crucial role in the MV-induced inflammatory response. Resveratrol (RVT) exhibits anti-inflammatory effects in vitro and in vivo supposedly by interfering with TLR4 signaling and NF-κB. In the present study, we investigated the role of RVT in MV-induced inflammation in mice.METHODS:
RVT (10 mg/kg, 20 mg/kg and 40 mg/kg) or vehicle was intraperitoneally administered 1 h before start of MV (4 h, tidal volume 8 ml/kg, positive end-expiratory pressure 1,5 cmH2 O and FiO2 0.4). Blood and lungs were harvested for cytokine analysis. DNA binding activity of transcription factor NF-κB was measured in lung homogenates.RESULTS:
MV resulted in elevated pulmonary concentrations of IL-1ß, IL-6, keratinocyte-derived chemokine (KC) and NF-κB DNA-binding activity. RVT at 10, 20 and 40 mg/kg reduced NF-κB's DNA-binding activity following MV compared with ventilated controls. However, no differences in cytokine release were found between RVT-treated and control ventilated mice. Similarly, in plasma, MV resulted in elevated concentrations of TNF-α, KC and IL-6, but RVT did not affect cytokine levels.CONCLUSIONS:
RVT abrogates the MV-induced increase in pulmonary NF-κB activity but does not attenuate cytokine levels. This implies a less prominent role for NF-κB in MV-induced inflammation than previously assumed.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Respiration, Artificial
/
Stilbenes
/
Anti-Inflammatory Agents, Non-Steroidal
/
Cytokines
/
NF-kappa B
Limits:
Animals
Language:
En
Journal:
Acta Anaesthesiol Scand
Year:
2014
Document type:
Article
Affiliation country:
Netherlands