Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2000-6-1
pubmed:abstractText
We injected cyclophosphamide into mice and examined their natural killer (NK) activity both in vitro and in vivo. Cyclophosphamide injection temporarily abrogated the lung clearance activity of Yac-1 lymphoma cells, which is considered to be an index of NK activity in vivo. However, administration of recombinant human macrophage-colony-stimulating-factor (rhM-CSF) to cyclophosphamide-injected mice restored the lung clearance activity. To clarify whether the administration of rhM-CSF activated NK cells, we purified NK1.1+ cells from mice treated with cyclophosphamide and/or rhM-CSF and examined their functions (cytotoxicity, proliferation, and interferon gamma production) in vitro. Cyclophosphamide injection decreased the number, but did not suppress the functions of NK1.1+ cells. The numbers of NK1.1+ cells in cyclophosphamide-injected mice restored by rhM-CSF administration. And the functions of NK1.1+ cells from both saline-injected and cyclophosphamide-injected mice were accelerated by rhM-CSF administration. These results suggested that the temporary abrogation of NK activity in vivo caused by cyclophosphamide injection was due to a decrease in the number and not to suppression of the functions of NK1.1+ cells. The injection of cyclophosphamide into mice increased the number of tumor (B16 melanoma) nodules formed in the lungs and liver. However, treatment with rhM-CSF recovered the anti-metastatic activity in the lungs of cyclophosphamide-injected mice. These results show that administration of rhM-CSF restores NK activity suppressed by cyclophosphamide injection in vivo.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Ly, http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Surface, http://linkedlifedata.com/resource/pubmed/chemical/Cyclophosphamide, http://linkedlifedata.com/resource/pubmed/chemical/Interferon-gamma, http://linkedlifedata.com/resource/pubmed/chemical/KLRB1 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/Klrb1c protein, mouse, http://linkedlifedata.com/resource/pubmed/chemical/Lectins, C-Type, http://linkedlifedata.com/resource/pubmed/chemical/Macrophage Colony-Stimulating Factor, http://linkedlifedata.com/resource/pubmed/chemical/NK Cell Lectin-Like Receptor..., http://linkedlifedata.com/resource/pubmed/chemical/Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Proteins
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0340-7004
pubmed:author
pubmed:issnType
Print
pubmed:volume
49
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
94-100
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:10823419-Animals, pubmed-meshheading:10823419-Antigens, pubmed-meshheading:10823419-Antigens, Ly, pubmed-meshheading:10823419-Antigens, Surface, pubmed-meshheading:10823419-Cyclophosphamide, pubmed-meshheading:10823419-Hematopoiesis, pubmed-meshheading:10823419-Interferon-gamma, pubmed-meshheading:10823419-Killer Cells, Natural, pubmed-meshheading:10823419-Lectins, C-Type, pubmed-meshheading:10823419-Lung Neoplasms, pubmed-meshheading:10823419-Macrophage Colony-Stimulating Factor, pubmed-meshheading:10823419-Male, pubmed-meshheading:10823419-Melanoma, Experimental, pubmed-meshheading:10823419-Mice, pubmed-meshheading:10823419-Mice, Inbred C57BL, pubmed-meshheading:10823419-NK Cell Lectin-Like Receptor Subfamily B, pubmed-meshheading:10823419-Proteins, pubmed-meshheading:10823419-Recombinant Proteins
pubmed:year
2000
pubmed:articleTitle
Effects of macrophage-colony-stimulating factor on cyclophosphamide-injected mouse NK1.1+ cell activity.
pubmed:affiliation
Biochemical Research Laboratory, Morinaga Milk Industry Co. Ltd., Zama City, Kanagawa pref., Japan.
pubmed:publicationType
Journal Article