Interleukin-1 inhibitor production by human mononuclear leukocytes and leukocyte subpopulations exposed to respiratory syncytial virus: Analysis and comparison with the response to influenza virus

D. O. McCarthy, F. M. Domurat, Joan Nichols, N. J. Roberts

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Abstract

Net interleukin-1 (IL-1) inhibitor activity is induced by exposure of purified human monocytes-macrophages to respiratory syncytial virus (RSV). Furthermore, IL-1 inhibitor activity was produced by monocytes-macrophages exposed to RSV in the presence of lymphocytes, that is, by unseparated mononuclear leukocytes (MNL). Purified RSV-exposed lymphocytes, as well as the lymphocytes exposed within MNL preparations, produced net IL-1 inhibitor activity. In contrast, net IL-1 activity was produced when purified monocytes-macrophages or unseparated MNL were exposed to influenza virus. The RSV-induced IL-1 inhibitors demonstrated antiproliferative effects on mitogen-stimulated human lymphocytes as well as on the mouse thymocytes used in standard assays. The results raise the possibility that such antiproliferative activity is mediated, at least in part, by monocytes-macrophages. The data also suggest that IL-1 inhibitors produced by MNL after exposure to RSV may contribute along with other factors to the recurrence of RSV infection in immune individuals.

Original languageEnglish (US)
Pages (from-to)189-198
Number of pages10
JournalJournal of Leukocyte Biology
Volume46
Issue number3
StatePublished - 1989
Externally publishedYes

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Mononuclear Leukocytes
Respiratory Syncytial Viruses
Orthomyxoviridae
Interleukin-1
Leukocytes
Monocytes
Macrophages
Lymphocytes
Respiratory Syncytial Virus Infections
Thymocytes
Mitogens
Recurrence

ASJC Scopus subject areas

  • Cell Biology

Cite this

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title = "Interleukin-1 inhibitor production by human mononuclear leukocytes and leukocyte subpopulations exposed to respiratory syncytial virus: Analysis and comparison with the response to influenza virus",
abstract = "Net interleukin-1 (IL-1) inhibitor activity is induced by exposure of purified human monocytes-macrophages to respiratory syncytial virus (RSV). Furthermore, IL-1 inhibitor activity was produced by monocytes-macrophages exposed to RSV in the presence of lymphocytes, that is, by unseparated mononuclear leukocytes (MNL). Purified RSV-exposed lymphocytes, as well as the lymphocytes exposed within MNL preparations, produced net IL-1 inhibitor activity. In contrast, net IL-1 activity was produced when purified monocytes-macrophages or unseparated MNL were exposed to influenza virus. The RSV-induced IL-1 inhibitors demonstrated antiproliferative effects on mitogen-stimulated human lymphocytes as well as on the mouse thymocytes used in standard assays. The results raise the possibility that such antiproliferative activity is mediated, at least in part, by monocytes-macrophages. The data also suggest that IL-1 inhibitors produced by MNL after exposure to RSV may contribute along with other factors to the recurrence of RSV infection in immune individuals.",
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AU - Nichols, Joan

AU - Roberts, N. J.

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AB - Net interleukin-1 (IL-1) inhibitor activity is induced by exposure of purified human monocytes-macrophages to respiratory syncytial virus (RSV). Furthermore, IL-1 inhibitor activity was produced by monocytes-macrophages exposed to RSV in the presence of lymphocytes, that is, by unseparated mononuclear leukocytes (MNL). Purified RSV-exposed lymphocytes, as well as the lymphocytes exposed within MNL preparations, produced net IL-1 inhibitor activity. In contrast, net IL-1 activity was produced when purified monocytes-macrophages or unseparated MNL were exposed to influenza virus. The RSV-induced IL-1 inhibitors demonstrated antiproliferative effects on mitogen-stimulated human lymphocytes as well as on the mouse thymocytes used in standard assays. The results raise the possibility that such antiproliferative activity is mediated, at least in part, by monocytes-macrophages. The data also suggest that IL-1 inhibitors produced by MNL after exposure to RSV may contribute along with other factors to the recurrence of RSV infection in immune individuals.

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