Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1990-9-14
pubmed:abstractText
We analyzed the phagocytic activity of purified human monocytes using fluorescent latex beads sensitized with IgG or IgG.C3 by flow cytometry. To prepare IgG-sensitized latex beads (BA), BSA-coated latex beads (B) were incubated with diluted rabbit IgG anti-BSA. To bind complement components, BA were incubated with whole serum pretreated with K-76 monocarboxylic acid (K-76COOH). K-76COOH inhibits the activity of factor I and C5, resulting in deposition of C1, C4b, C2a, C3b on BA (BAC). Phagocytic activity was assessed by percent phagocytosis and phagocytic index (PI). To eliminate the effects of non-phagocytosed latex beads, subtraction of the data at 4 degrees C from 37 degrees C was performed. Percent phagocytosis for 60 min. was B 5.0%, BA 18.3%, and BAC 57.5%, and PI (ingested latex beads/100 cells) was B 7.9, BA 36.8, and BAC 152.7, respectively. In addition, K-76COOH caused dose dependent inhibition on IgG.C3 mediated phagocytosis. Comparison of inhibition pattern on BAC and BA indicated that K-76COOH directly inhibited C3.C3-receptor binding.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0001-5806
pubmed:author
pubmed:issnType
Print
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
567-74
pubmed:dateRevised
2011-7-28
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
[Flow cytometric analysis of immunophagocytosis using sensitized fluorescent microspheres bearing C3b].
pubmed:affiliation
The Second Department of Internal Medicine, Shiga University of Medical Science, Otsu.
pubmed:publicationType
Journal Article, English Abstract