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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1998-8-26
pubmed:abstractText
Nicotine (NT) treatment impairs T-cell receptor (TCR)-mediated signaling, leading to the arrest of T cells in the G1 phase of the cell cycle and inhibition of the antibody plaque-forming cell (AFC) response to sheep red blood cells (SRBC). This paper summarizes some of the previous findings related to cigarette smoke/NT and the immune response, and presents preliminary evidence suggesting that mice chronically treated with NT (0.5 mg/day/kg body weight) have a depressed inflammatory response in the turpentine-induced abscess model of inflammation. This ability of nicotine to attenuate an inflammatory response may also be the cause of reduced mortality of chronically nicotine-treated mice from acute influenza A pneumonitis. Moreover, in LEW rats, decreased anti-SRBC AFC responses were also observed after intracerebroventricular (i.c.v.) administration of relatively small concentrations of NT (28 micrograms/day/kg body weight) which, when given peripherally, did not affect the AFC response. In vitro the addition of NT to T cells increased protein tyrosine kinase (PTK) activity and intracellular Ca2+ concentration [Ca2+]i. These results support the hypothesis that NT alters immune responses by directly interacting with T cells, as well as indirectly through brain-immune interactions.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0306-4530
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
189-204
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:9621398-Abscess, pubmed-meshheading:9621398-Animals, pubmed-meshheading:9621398-Anti-Inflammatory Agents, Non-Steroidal, pubmed-meshheading:9621398-Body Temperature, pubmed-meshheading:9621398-Calcium, pubmed-meshheading:9621398-Hemolytic Plaque Technique, pubmed-meshheading:9621398-Immune System, pubmed-meshheading:9621398-Immunity, pubmed-meshheading:9621398-Influenza A virus, pubmed-meshheading:9621398-Injections, Intraventricular, pubmed-meshheading:9621398-Male, pubmed-meshheading:9621398-Mice, pubmed-meshheading:9621398-Motor Activity, pubmed-meshheading:9621398-Nicotine, pubmed-meshheading:9621398-Nicotinic Agonists, pubmed-meshheading:9621398-Orthomyxoviridae Infections, pubmed-meshheading:9621398-Protein-Tyrosine Kinases, pubmed-meshheading:9621398-Rats, pubmed-meshheading:9621398-Rats, Inbred Lew, pubmed-meshheading:9621398-T-Lymphocytes
pubmed:year
1998
pubmed:articleTitle
Effect of nicotine on the immune system: possible regulation of immune responses by central and peripheral mechanisms.
pubmed:affiliation
Division of Pathophysiology, Lovelace Respiratory Research Institute, Albuquerque, NM 87108, USA. msopori@LRRI.org
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.