ISSN:
1432-1831
Keywords:
Key words Epstein-Barr virus
;
Lytic cycle
;
Growth arrest
;
Gangliosides
;
Monocyte/granulocyte lineage
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract Gangliosides are known to influence cell growth and differentiation. The neolacto series ganglioside IV3NeuAc-nLc4 (2→3-sialosylparagloboside) is present in members of the monocyte/granulocyte lineage, but is not found in cells that belong to the lymphocyte lineage. In this study we demonstrated that IV3NeuAc-nLc4 inhibits the proliferation of Epstein-Barr virus (EBV) genome-positive Burkitt lymphoma cells of the lines Raji and P3HR-1K. IV3NeuAc-nLc4-induced growth inhibition is associated with an increase in G0/G1 phase cells and a reduced expression of CD21 and HLA-DR antigens on Raji cells. These data suggest that IV3NeuAc-nLc4 may affect differentiation of lymphoma cells. Additionally, the increased expression of viral mRNA species which are characteristic for the lytic viral cycle in the non-producer line Raji and the enhanced release of virions from the producer line P3HR-1K demonstrate that IV3NeuAc-nLc4 activates the replication of EBV. Growth inhibition and termination of the viral latency suggest that IV3NeuAc-nLc4 present in monocyte/granulocyte lineage cells may be an effector of the natural defense against EBV persistency and transformation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s004300050101
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