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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1988-12-22
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pubmed:abstractText |
Effects of nickel and magnesium on the responsiveness of BALB/c mouse spleen lymphocytes to a mitogen, concanavalin A (Con A), were studied using the in vitro 3H-thymidine (TdR) incorporation test. Nickel chloride (NiCl2) and nickel subsulfide (Ni3S2) were found to suppress this response. The control level of TdR incorporation from a magnesium-free medium containing 0.625 microgram Con A/ml into trichloroacetic-acid-precipitable nucleoprotein was depressed by both nickel compounds in a dose-dependent manner to 3% of its original value by 0.25 mumol NiCl2/ml or 0.33 mumol Ni3S2/ml (5 micron particles). Magnesium stimulated TdR incorporation up to a maximum of 200% of the control level at concentrations greater than 2.0 mumol MgCl2/ml. Also, gradual increase of magnesium concentration in the culture medium up to 2.0 mumol/ml attenuated the effects of nickel, restoring the lymphocyte response to Con A to 43% of the control level at 0.25 mumol NiCl2/ml or to 30% at 0.33 mumol Ni3S2/ml. Higher concentrations of magnesium did not further enhance this responsiveness. These data suggest that the effect of magnesium upon early cellular response to nickel observed in vivo [Kasprzak et al.: Carcinogenesis 6: 1161-1166, 1985], which eventually results in a decreased tumor incidence, may be due in part to antagonism by magnesium of nickel suppression of the activity of T lymphocytes.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Concanavalin A,
http://linkedlifedata.com/resource/pubmed/chemical/DNA,
http://linkedlifedata.com/resource/pubmed/chemical/Magnesium,
http://linkedlifedata.com/resource/pubmed/chemical/Nickel,
http://linkedlifedata.com/resource/pubmed/chemical/magnesium carbonate,
http://linkedlifedata.com/resource/pubmed/chemical/nickel chloride,
http://linkedlifedata.com/resource/pubmed/chemical/nickel subsulfide
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pubmed:status |
MEDLINE
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pubmed:issn |
0252-1156
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
7
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
166-72
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3263555-Animals,
pubmed-meshheading:3263555-Concanavalin A,
pubmed-meshheading:3263555-DNA,
pubmed-meshheading:3263555-Drug Interactions,
pubmed-meshheading:3263555-Female,
pubmed-meshheading:3263555-Magnesium,
pubmed-meshheading:3263555-Mice,
pubmed-meshheading:3263555-Mice, Inbred BALB C,
pubmed-meshheading:3263555-Nickel,
pubmed-meshheading:3263555-Spleen,
pubmed-meshheading:3263555-T-Lymphocytes
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pubmed:year |
1988
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pubmed:articleTitle |
Magnesium counteracts nickel-induced suppression of T lymphocyte response to concanavalin A.
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pubmed:affiliation |
Inorganic Carcinogenesis Section, National Cancer Institute, Frederick, Md.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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