Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1995-4-20
pubmed:abstractText
Streptolysin O (SLO) is a representative of the family of cholesterol-binding cytolysins that form large pores in target cell membranes. Aggregation of the toxin to polymeric structures is required for pore formation. However, it is not known whether, vice versa, polymers may under certain circumstances remain nonfunctional, and whether this might be the cause underlying the relative resistance of certain cells towards toxin action. In the present study, we applied radioiodinated, functionally active SLO to human, rabbit, and mouse erythrocytes and to human fibroblasts and keratinocytes. Binding and polymerization were quantified and correlated with membrane damage. At low toxin concentrations, human and rabbit but not mouse erythrocytes were lysed, but binding and polymerization of SLO were essentially identical in all cases. Nonlytic polymers were also detected on human fibroblasts and keratinocytes treated with subcytotoxic concentrations of SLO, and quantitative estimates indicated that nonpermeabilized cells could carry hundreds of polymers on their surface. When applied at low concentrations to fibroblasts, much of the toxin remained in monomer form and was subsequently shed from the cells. This was shown by monitoring the fate of radioiodinated toxin and also by using a sensitive cell enzyme-linked immunosorbent assay that permitted immunological detection of surface-exposed SLO. Thus, relative resistance of cells towards the permeabilizing action of SLO may be due to their ability to tolerate formation of a limited number of SLO polymers and to shedding of nonoligomerized toxin from their surface.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-102256, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-1176529, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-182263, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-2253619, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-2254290, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-228722, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-2451254, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-2505236, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-2663727, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-2744861, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-2824384, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-2901352, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-2903128, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-3126142, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-3502717, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-3552992, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-3781620, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-3880730, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-4024147, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-414780, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-4209248, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-427152, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-4451554, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-5332169, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-6253400, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-6282326, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-6299345, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-6318394, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-6321351, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-6356291, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-6500696, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-6896246, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-7003609, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-7358434, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-7527897, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-8225571, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-8232069, http://linkedlifedata.com/resource/pubmed/commentcorrection/7890371-8241254
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0019-9567
pubmed:author
pubmed:issnType
Print
pubmed:volume
63
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1188-94
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Binding, oligomerization, and pore formation by streptolysin O in erythrocytes and fibroblast membranes: detection of nonlytic polymers.
pubmed:affiliation
Institute of Medical Microbiology and Hygiene, Mainz, Germany.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't