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동의어 포함
The neuropeptide α-melanocyte-stimulating hormone (α-
MSH) has anti-inflammatory property by downregulating
the expressions of proinflammatory cytokines. Because
α-MSH elicits the anti-inflammatory effect in various
inflammatory disease models, we examined the therapeutic
effect of oral administration of recombinant Lactobacillus
casei, which secretes α-MSH (L. casei-α-MSH), on dextran
sulfate sodium (DSS)-induced colitis in Balb/c mice. Thus,
we constructed the α-MSH-secreting Lactobacillus casei
by the basic plasmid, pLUAT-ss, which was composed of a
PldhUTLS promoter and α-amylase signal sequence from
Streptococcus bovis strain. Acute colitis was induced by
oral administration of 5% DSS in drinking water for 7
days. To investigate the effect of L. casei-α-MSH on the
colitis, L. casei or L. casei-α-MSH was orally administered
for 7 days and their effects on body weight, mortality rate,
cytokine production, and tissue myeloperoxidase (MPO)
activity were observed. Administration of L. casei-α-MSH
reduced the symptom of acute colitis as assessed by
body weight loss (DSS alone: 14.45±0. 2 g; L. casei-α-
MSH: 18.2±0.12 g), colitis score (DSS alone: 3.6±0.4;
L. casei-α-MSH: 1.4±0.6), MPO activity (DSS alone:
42.7±4.5 U/g; L. casei-α-MSH: 10.25±0.5 U/g), survival
rate, and histological damage compared with the DSS
alone mice. L. casei-α-MSH-administered entire colon
showed reduced in vitro production of proinflammatory
cytokines and NF-κB activation. The α-MSH-secreting
recombinant L. casei showed significant anti-inflammatory
effects in the murine model of acute colitis and suggests a
potential therapeutic role for this agent in clinical
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도서위치안내: 정기간행물실(524호) / 서가번호: 국내17
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