Nuclear factor kappa B expression in peripheral blood mononuclear cells of patients with acute pancreatitis.
BACKGROUND
Although many experimental studies have implicated the activation of nuclear factor kappa B (NF-kappaB) as a pivotal step in the pathobiology of acute pancreatitis, no clinical investigations have been reported. AIMTo investigate the expression of NF-kappaB and its characteristics in peripheral blood mononuclear cells (PBMCs) of patient with acute pancreatitis.


METHODS
Forty-five patients were prospectively enrolled. The expression of NF-kappaB in PBMCs was measured in the patients by electrophoretic mobility shift assay at admission and 14 days after the onset of acute pancreatitis. Twelve healthy individuals were also included as control subjects.


RESULTS
At admission, the PBMCs from patients with acute pancreatitis showed higher levels of NF-kappaB activities than did those from control subjects. In vitro, the lipopolysaccharide (LPS) treatment of the PBMCs from the control subjects and patients with mild pancreatitis induced further activation of the NF-kappaB. The response was significantly reduced in patients with severe pancreatitis. Patients who had persistently high NF-kappaB activities, a reduced response of NF-kappaB to LPS, and a low p50p65:p50p50 ratio after LPS stimulation at 14 days developed serious systemic complications in the later clinical course.


CONCLUSIONS
An alteration of the characteristics of PBMCs occurs in the early phase of acute pancreatitis and may predispose patients to a higher risk of serious systemic complications.
Satoh
Akihiko
A
Division of Gastroenterology, Tohoku University Graduate School of Medicine, Miyagi, Japan. asato@bf7.so-net.ne.jp
Masamune
Atsushi
A
Kimura
Kenji
K
Kaneko
Kenzo
K
Sakai
Yoshitaka
Y
Yamagiwa
Tetsuya
T
Satoh
Masahiro
M
Kikuta
Kazuhiro
K
Asakura
Tohru
T
Shimosegawa
Tooru
T
D000208:Acute Disease; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007963:Leukocytes, Mononuclear / Q000187:drug effects / Q000378:metabolism*; D008070:Lipopolysaccharides / Q000494:pharmacology; D008297:Male; D008875:Middle Aged; D016328:NF-kappa B / Q000097:blood*; D010195:Pancreatitis / Q000097:blood*
D008070:Lipopolysaccharides; D016328:NF-kappa B