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At least 19 recordsLinked to original sources
PubMed1960

Relation of particle size of C polysaccharide complexes of group A streptococci to toxic effects on connective tissue.

The component of Group A streptococci which is responsible for the chronic, remittent, multinodular lesion of connective tissue is derived from the cell wall. Further evidence is given to support the essential role of the group-specific C polysaccharide in the production of this lesion. A series of particles containing the group-specific C polysaccharide was prepared, ranging in size from large cell wall fragments to the relatively small hapten. A comparison of the lesion producing capacity of the particles in this spectrum revealed that maximum toxic activity is associated with C polysaccharide complexes of intermediate size. The discussion considers colloidal properties associated with C polysaccharide complexes of a certain size, and the influence particle size has on persistence in tissue, as possible explanations of the relationship between the size of the C polysaccharide complex and its ability to produce the chronic lesion of connective tissue.

Cell Wall↗
PubMed1962

Electron microscopic studies of experimental nephritis with ferritin-conjugated antibody. The basement membranes and cisternae of visceral epithelial cells in nephritic rat glomeruli.

Ferritin-conjugated antibody has been used to identify by electron microscopy the sites at which nephrotoxic globulins localize in rat kidney during acute experimental glomerulonephritis. Antibody was concentrated in the glomerular basement membrane and in basement membrane-like material contained in distended cisternae of the endoplasmic reticulum. These data confirm and amplify, at the ultrastructural level, the results of studies obtained with the fluorescent antibody technique, and are consistent with the hypothesis that the cisternae and capillary basement membrane possess common proteins.

Animals↗