rdf:type |
|
lifeskim:mentions |
umls-concept:C0019699,
umls-concept:C0019704,
umls-concept:C0019900,
umls-concept:C0024264,
umls-concept:C0025266,
umls-concept:C0034819,
umls-concept:C0334094,
umls-concept:C0439849,
umls-concept:C0597360,
umls-concept:C0871261,
umls-concept:C1704632,
umls-concept:C1706817,
umls-concept:C2911692
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pubmed:issue |
1
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pubmed:dateCreated |
1993-2-8
|
pubmed:abstractText |
Previous studies have shown that exogenous IL-2 does not correct the reduction in phytohaemagglutinin (PHA)-induced proliferation of lymphocytes from HIV-1 infected (HIV+) individuals. We investigated the mechanism of this reduction to determine if reduced expression of the complete IL-2 receptor (IL-2R) was responsible. In a series of experiments, PHA-stimulated lymphocytes from a total of 89 HIV- and 93 HIV+ homosexual men from the Baltimore Multicentre AIDS Cohort Study (MACS) were studied to determine the expression of messages for the alpha and beta subunits of the IL-2R, the binding of 125I-IL-2 to high affinity IL-2R, and the effect of IL-2 on cell proliferation. Compared to HIV- donors, PHA-stimulated lymphocytes from most HIV+ donors demonstrated (i) a reduction in high affinity IL-2R expression that correlated with the reduction in the IL-2-induced proliferative response; and (ii) a reduction in expression of both IL-2R alpha- and beta-chain mRNA which may be responsible for decreased high affinity IL-2R expression. However, lymphocytes from some HIV+ individuals had borderline low IL-2-induced proliferation despite normal or elevated expression of high affinity IL-2R. These results suggest that decreased expression of IL-2R may account, at least in part, for the lower proliferative response of cells from HIV+ donors.
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pubmed:grant |
|
pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-1700428,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-1708315,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-1969782,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2137842,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2467293,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2493338,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2556795,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2571670,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2581997,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2582258,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2583751,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2584707,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2784365,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2784485,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2785715,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2787381,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2795714,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2889557,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2961571,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2968871,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2975974,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-2996136,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-3003749,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-3012540,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-3040856,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-3045818,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-3095229,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-3108371,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-3131876,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-3161909,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-3300281,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-3926900,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-4179068,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-6235286,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-6312838,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-6422299,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-6575385,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-6605980,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-6606643,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-6609030,
http://linkedlifedata.com/resource/pubmed/commentcorrection/8093435-6968909
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
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pubmed:chemical |
|
pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0009-9104
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:volume |
91
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
18-24
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading |
pubmed-meshheading:8093435-CD4-Positive T-Lymphocytes,
pubmed-meshheading:8093435-HIV Seropositivity,
pubmed-meshheading:8093435-HIV-1,
pubmed-meshheading:8093435-Homosexuality,
pubmed-meshheading:8093435-Humans,
pubmed-meshheading:8093435-Interleukin-2,
pubmed-meshheading:8093435-Leukocyte Count,
pubmed-meshheading:8093435-Lymphocyte Activation,
pubmed-meshheading:8093435-Male,
pubmed-meshheading:8093435-RNA, Messenger,
pubmed-meshheading:8093435-Receptors, Interleukin-2
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pubmed:year |
1993
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pubmed:articleTitle |
Relationship between IL-2 receptor expression and proliferative responses in lymphocytes from HIV-1 seropositive homosexual men.
|
pubmed:affiliation |
Department of Environmental Health Sciences, School of Hygiene and Public Health, Johns Hopkins University, Baltimore, MD 21205.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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