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  • Title: Effect of dimethylsulfoxide on the cell surface of Herpetomonas samuelpessoai.
    Author: Soares RM, Alviano CS, Silva-Filho FC, Esteves MJ, Angluster J, De Souza W.
    Journal: J Submicrosc Cytol; 1984 Oct; 16(4):735-9. PubMed ID: 6502782.
    Abstract:
    The influence of dimethylsulfoxide (DMSO) on surface components (Con A receptors, antigenic sites recognized by monospecific antibodies and membrane associated polysaccharide components) of Herpetomonas samuelpessoai was investigated. Techniques such as light and scanning electron microscopy and gas-liquid chromatography were used. The characteristic flagellar-flagellar (F-F) pattern of cell agglutination with Con A was markedly modified by DMSO and besides the F-F interactions other types of agglutination, including flagellar-somatic (F-S) and somatic-somatic (S-S), were detected. DMSO induced significant antigenic alteration in H. samuelpessoai. The interaction with serum anti-flagellate was greatly decreased in DMSO-treated cells. The pattern of the composition of membrane-associated polysaccharides was also substantially changed: DMSO induced a preferential synthesis of galactose and a decrease of xylose, whereas mannose and glucose content remained practically unchanged.
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