Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1977-9-22
pubmed:abstractText
When phagocytosis-resistant Salmonella typhimurium 395 MS bacteria sensitized with anti-MS IgG antibodies were incubated with liposomes composed of phosphatidylcholine, cholesterol, and dicetylphosphate, a previously sequestered liposomal marker (4-methylumbelliferylphosphate) was released. Unsensitized or F(ab')2-sensitized bacteria had no such effect. This perturbation was neither dependent upon negatively charged dicetylphosphate nor upon cholesterol. It was further evident that palmitoyl-poly(ethyleneglycol) caused release of the trapped marker in a similar way as sensitized bacteria. These findings demonstrate a similarity between sensitized bacteria and a hydrophobic probe and lend support to the hypothesis that the perturbation was brought about by hydrophobic interaction. The observations indicate that liposomes, like phagocytes, possess "receptor sites" for the activated part of IgG and raise the possibility that phagocytic effectors can operate in a relatively nonspecific manner.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:volume
119
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
609-13
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
Physicochemical consequences of opsonization: perturbation of liposomal membranes by Salmonella typhimurium 395 MS opsonized with IgG antibodies.
pubmed:publicationType
Journal Article, In Vitro