Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3-4
pubmed:dateCreated
2000-7-27
pubmed:abstractText
A human monocyte chemoattractant protein-1 (hMCP-1) transgenic mouse (Tgm) line which constitutively produces a large amount of hMCP-1 (7-13 ng/ml in the serum) was established. Although expression of the transgene was detected in various tissues, an accumulation of macrophages (Mphi) was seen in only lymphoid organs which might be attributed to the high concentration of hMCP-1 in these organs. A reduced phagocytosis by peritoneal Mphi in vivo and a delayed clearance of granulomas in the liver following zymosan administration were observed in these Tgm. However, peritoneal exudate cells (PEC) from Tgm exhibited normal in vitro phagocytic activity and nitric oxide (NO) production upon stimulation with IFN-gamma as compared with those from non-Tgm. In addition, high activities of src-family protein tyrosine kinases (PTK), Fgr and Hck, were also noted in the peritoneal resident cells from Tgm, whereas the level of mitogen-activated protein kinase (MAPK) activity was almost the same as that of non-Tgm. It was suggested that the low functional activities of Tgm Mphi seen in vivo were attributed to down-regulation of the unique transducing system of hMCP-1 signals under the influence of a high concentration of the hMCP-1. It seemed that the depressed functions were recovered when the peritoneal cells were released ex vivo from such a high hMCP-1 environment.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0171-2985
pubmed:author
pubmed:issnType
Print
pubmed:volume
201
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
432-49
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:10776798-Animals, pubmed-meshheading:10776798-Ascitic Fluid, pubmed-meshheading:10776798-Chemokine CCL2, pubmed-meshheading:10776798-Granuloma, pubmed-meshheading:10776798-Humans, pubmed-meshheading:10776798-Lymphoid Tissue, pubmed-meshheading:10776798-Macrophages, Peritoneal, pubmed-meshheading:10776798-Mice, pubmed-meshheading:10776798-Mice, Inbred C3H, pubmed-meshheading:10776798-Mice, Inbred C57BL, pubmed-meshheading:10776798-Mice, Transgenic, pubmed-meshheading:10776798-Neoplasms, Experimental, pubmed-meshheading:10776798-Nitric Oxide, pubmed-meshheading:10776798-Phagocytosis, pubmed-meshheading:10776798-Protein-Tyrosine Kinases, pubmed-meshheading:10776798-Proto-Oncogene Proteins, pubmed-meshheading:10776798-Proto-Oncogene Proteins c-hck, pubmed-meshheading:10776798-Up-Regulation, pubmed-meshheading:10776798-Zymosan, pubmed-meshheading:10776798-src-Family Kinases
pubmed:year
2000
pubmed:articleTitle
Delayed clearance of zymosan-induced granuloma and depressed phagocytosis of macrophages with concomitant up-regulated kinase activities of Src-family in a human monocyte chemoattractant protein-1 transgenic mouse.
pubmed:affiliation
Section of Pathology, Institute of Immunological Science Hokkaido University, Sapporo, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't