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The Vaccinia virus gene A35R (Copenhagen designation) is highly conserved in mammalian-tropic poxviruses and is an important virulence factor, but its function was unknown. We show herein that A35 does not affect viral infectivity, apoptosis induction, or replication; however, we found that A35 significantly inhibited MHC class II-restricted antigen presentation, immune priming of T lymphocytes, and...
The present article summarizes studies aimed at addressing the role of antigen-presenting cell populations, particularly dendritic cells (DC), in the immune response to Salmonella typhimurium. Data from in vitro studies shed light on presentation of antigens expressed in Salmonella on major histocompatibility complex class I and class II molecules by infected DC and macrophages, and the activation...
Apoptotic macrophages are regularly found in atherosclerotic plaques indicating programmed cell death as one of their regulatory controls. The objective of this study was to characterize in more detail apoptotic macrophages in atherosclerotic lesions of humans and heritable hyperlipidemic (HHL) rabbits. Macrophages were immunohistochemically analyzed using antibodies directed against α M β...
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