Exacerbation of human immunodeficiency virus infection in promonocytic cells by bacterial immunomodulators
Masihi, K.N.; Lange, W.; Rohde-Schulz, B.
Journal of Acquired Immune Deficiency Syndromes 3(3): 200-205
1990
ISSN/ISBN: 0894-9255 PMID: 2106022 Document Number: 357134
Common bacterial infections are increasingly being diagnosed in HIV-infected individuals. Cells of the monocyte-macrophage lineage kill invading bacterial pathogens and subsequently release immunoadjuvant components from the degraded cell walls. Since monocytes can be infected with HIV, effects of bacterial immunomodulators on infected promonocytic U937 cells were investigated. Synthetic muramyl peptide, mycobacterial trehalose dimycolate, and detoxified endotoxin exhibited an initial reduction followed by a rapid increase in HIV p24 antigen production. The upregulation of virus expression was correlated with enhanced interleukin-1 beta levels and a decrease in TNF-alpha production.
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