Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1999-6-10
pubmed:abstractText
Effects of peptidoglycan linked with zinc (PGM-Zn) were investigated on plaque-forming cell (PFC) generation to sheep red blood cell (SRBC) and SRBC-unrelated antibody production in primary and secondary immune response in mice depleted in vivo of CD4+ and/or CD8+ T lymphocytes. PGM-Zn in nondepleted mice stimulated the PFC generation and IgM or IgG and IgG1 production in primary and secondary reaction. Single depletion of CD4 or CD8+ T cells did not change this ability. The effects of PGM-Zn after CD8+ depletion were even greater than those in nondepleted mice. Depletion of both T cell subsets, however, completely abrogated immunostimulatory effects of PGM on PFC generation (primary and secondary response), as well as on primary SRBC-unrelated antibody production, leaving only the increase of IgG in secondary response unchanged. Immunostimulatory effects and isotype switching to IgG1 and IgG2a correlated with the changes in splenic CD4+, CD8+, CD5+ cells, pointing to the regulatory role of these cells and/or their cytokines in PGM-Zn-induced immunostimulation. Altogether the data suggest that PGM-Zn may potentiate the costimulatory signals coming from activated T cells and act on B cells without the T cell help.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1018-2438
pubmed:author
pubmed:issnType
Print
pubmed:volume
119
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
13-22
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:10341316-Acetylmuramyl-Alanyl-Isoglutamine, pubmed-meshheading:10341316-Animals, pubmed-meshheading:10341316-Antibody Formation, pubmed-meshheading:10341316-Antigens, CD5, pubmed-meshheading:10341316-Bone Marrow Cells, pubmed-meshheading:10341316-CD4-Positive T-Lymphocytes, pubmed-meshheading:10341316-CD8-Positive T-Lymphocytes, pubmed-meshheading:10341316-Erythrocytes, pubmed-meshheading:10341316-Hemolytic Plaque Technique, pubmed-meshheading:10341316-Lymphocyte Activation, pubmed-meshheading:10341316-Lymphocyte Count, pubmed-meshheading:10341316-Male, pubmed-meshheading:10341316-Mice, pubmed-meshheading:10341316-Mice, Inbred BALB C, pubmed-meshheading:10341316-Peptidoglycan, pubmed-meshheading:10341316-Sheep, pubmed-meshheading:10341316-Spleen, pubmed-meshheading:10341316-T-Lymphocyte Subsets, pubmed-meshheading:10341316-T-Lymphocytes, pubmed-meshheading:10341316-Thymus Gland, pubmed-meshheading:10341316-Zinc
pubmed:year
1999
pubmed:articleTitle
On the role of T lymphocytes in stimulation of humoral immunity induced by peptidoglycan-monomer linked with zinc.
pubmed:affiliation
Department of Physiology and Immunology, Medical Faculty, University of Rijeka, Croatia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't