Administration of an immunomodulatory azaspirane, SK F 105685, or human recombinant interleukin 1 stimulates myelopoiesis and enhances survival from lethal irradiation in C57Bl/6 mice
Abstract
The immunomodulatory azaspirane SK F 105685 has immunosuppressive activity in animal models of autoimmune disease such as adjuvant-induced arthritis and experimental autoimmune encephalomyelitis. The mechanism of SK F 105685 appears to be the induction of nonspecific suppressor cell (SC) activity. SC appear to be null cells, that is, cells that lack specific cell surface markers of mature B cells, T cells, natural killer (NK) cells, or macrophages. Because the authors hypothesized that the induction of SC was associated with enhanced hematopoiesis, they sought to determine the hematopoietic potential of SK F 105685. Recombinant interleukin 1 alpha (rIL-1) was included as a positive control for hematopoietic stimulation in their studies. They demonstrate here that administration of SK F 105685 increases the number of granulocyte-macrophage colony-forming units (CFU-GM) within the bone marrow 24 h after injection in a dose-dependent manner. In addition, the percentage of CFU-GM in S-phase of the cell cycle was significantly increased, as was colony-stimulating activity (CSA) present in the serum of treated animals. In their experiments IL-1 did not increase marrow CFU-GM; however, splenic CFU-GM, the proportion of CFU-GM in S-phase of the cell cycle, and serum CSA were all increased 24 h after a single treatment. Administrationmore »
- Authors:
-
- Department of Anti-Infectives, Smith Kline Beecham Pharmaceuticals, King of Prussia, PA (United States)
- Publication Date:
- OSTI Identifier:
- 5018168
- Resource Type:
- Journal Article
- Journal Name:
- Experimental Hematology (Lawrence, Kansas); (United States)
- Additional Journal Information:
- Journal Volume: 19:7; Journal ID: ISSN 0301-472X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; IMMUNOSUPPRESSIVE DRUGS; RADIOSENSITIVITY EFFECTS; LYMPHOKINES; BONE MARROW; CELL CYCLE; COLONY FORMATION; DOSE-RESPONSE RELATIONSHIPS; GAMMA RADIATION; HEMATOPOIETIC SYSTEM; LETHAL IRRADIATION; LYMPHOCYTES; MACROPHAGES; MICE; SPLEEN; SURVIVAL CURVES; ANIMAL CELLS; ANIMAL TISSUES; ANIMALS; BIOLOGICAL MATERIALS; BLOOD; BLOOD CELLS; BODY; BODY FLUIDS; CONNECTIVE TISSUE CELLS; DRUGS; ELECTROMAGNETIC RADIATION; GROWTH FACTORS; IONIZING RADIATIONS; IRRADIATION; LEUKOCYTES; MAMMALS; MATERIALS; MITOGENS; ORGANIC COMPOUNDS; ORGANS; PHAGOCYTES; PROTEINS; RADIATIONS; RODENTS; SOMATIC CELLS; TISSUES; VERTEBRATES; 560152* - Radiation Effects on Animals- Animals
Citation Formats
King, A G, and Badger, A M. Administration of an immunomodulatory azaspirane, SK F 105685, or human recombinant interleukin 1 stimulates myelopoiesis and enhances survival from lethal irradiation in C57Bl/6 mice. United States: N. p., 1991.
Web.
King, A G, & Badger, A M. Administration of an immunomodulatory azaspirane, SK F 105685, or human recombinant interleukin 1 stimulates myelopoiesis and enhances survival from lethal irradiation in C57Bl/6 mice. United States.
King, A G, and Badger, A M. 1991.
"Administration of an immunomodulatory azaspirane, SK F 105685, or human recombinant interleukin 1 stimulates myelopoiesis and enhances survival from lethal irradiation in C57Bl/6 mice". United States.
@article{osti_5018168,
title = {Administration of an immunomodulatory azaspirane, SK F 105685, or human recombinant interleukin 1 stimulates myelopoiesis and enhances survival from lethal irradiation in C57Bl/6 mice},
author = {King, A G and Badger, A M},
abstractNote = {The immunomodulatory azaspirane SK F 105685 has immunosuppressive activity in animal models of autoimmune disease such as adjuvant-induced arthritis and experimental autoimmune encephalomyelitis. The mechanism of SK F 105685 appears to be the induction of nonspecific suppressor cell (SC) activity. SC appear to be null cells, that is, cells that lack specific cell surface markers of mature B cells, T cells, natural killer (NK) cells, or macrophages. Because the authors hypothesized that the induction of SC was associated with enhanced hematopoiesis, they sought to determine the hematopoietic potential of SK F 105685. Recombinant interleukin 1 alpha (rIL-1) was included as a positive control for hematopoietic stimulation in their studies. They demonstrate here that administration of SK F 105685 increases the number of granulocyte-macrophage colony-forming units (CFU-GM) within the bone marrow 24 h after injection in a dose-dependent manner. In addition, the percentage of CFU-GM in S-phase of the cell cycle was significantly increased, as was colony-stimulating activity (CSA) present in the serum of treated animals. In their experiments IL-1 did not increase marrow CFU-GM; however, splenic CFU-GM, the proportion of CFU-GM in S-phase of the cell cycle, and serum CSA were all increased 24 h after a single treatment. Administration of SK F 105685 24 h prior to lethal irradiation resulted in a dose-related increase in the number of surviving mice. These results demonstrate that SK F 105685 and rIL-1 stimulate myelopoiesis in vivo and suggest a mechanism by which prophylactic treatment with these agents protects mice from otherwise lethal irradiation.},
doi = {},
url = {https://www.osti.gov/biblio/5018168},
journal = {Experimental Hematology (Lawrence, Kansas); (United States)},
issn = {0301-472X},
number = ,
volume = 19:7,
place = {United States},
year = {Thu Aug 01 00:00:00 EDT 1991},
month = {Thu Aug 01 00:00:00 EDT 1991}
}