Effect of Methionine Enkephalin on Natural Killer Cell and Cytotoxic T Lymphocyte Activity in Mice Infected with Influenza a Virus
作者:
BurgerRoger A.,
WarrenReed P.,
HuffmanJohn H.,
Sid wellRobert W.,
期刊:
Immunopharmacology and Immunotoxicology
(Taylor Available online 1995)
卷期:
Volume 17,
issue 2
页码: 323-334
ISSN:0892-3973
年代: 1995
DOI:10.3109/08923979509019754
出版商: Taylor&Francis
数据来源: Taylor
摘要:
AbstractMethionine enkephalin (Met-Enk) was evaluated for efficacy as an immune activator and potential therapeutic agent in influenza A/NWS/33 (H1N1) viral infections in female BALB/C mice. Influenza infection was induced intranasally with an approximate 90% lethal dose of virus and mice were treated intraperitoneally with doses of 10, 3 and 1 mg/kg/day, with treatments given 24 h pre-, 24 h post-and 72 h post-virus exposure. Splenocytes were assayed for natural killer cell (NK) and cytotoxic T lymphocyte (CTL) activity at time periods 76, 96 and 120 h post virus exposure. the 10 mg/kg dosage level significantly increased both CTL and NK activity at all time periods assayed. Other treatment schedules included single doses of 20, 10 and 3 mg/kg/day Met-Enk at either 24 h post-or 72 h post-virus exposure, with highly significant increases in NK and CTL activity noted after the latter treatment. the results of this study demonstrate the immunomodulatory effects of Met-Enk on NK and CTL in influenza infected mice and suggest a potential for therapeutic applications.
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