Linked Life Data

11389909

Source:http://linkedlifedata.com/resource/pubmed/id/11389909

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2001-6-6
pubmed:abstractText
Previous studies indicate that expression of higher gangliosides in renal cell carcinoma (RCC) is correlated with metastatic potential, particularly in the lung. Out of five major gangliosides in RCC, three disialogangliosides (disialogalactosylgloboside, IV(3)NeuAcIII(6)NeuAcLc(4), and IV(4)GalNAcIV(3)NeuAcIII(6)NeuAcLc(4)) bind strongly to siglec7, which is expressed highly in monocytes and natural killer cells. Out of other gangliosides tested, 2-->6 sialylparagloboside, GD3, GD2, and GT1b, but not other lacto- or ganglio-series gangliosides, showed clear binding to siglec7. In view of preferential metastasis of RCC to the lung, and binding of RCC cell line TOS-1 to lung tissue sections as shown in our previous study, we examined expression of siglec7 in the lung. siglec7 is expressed highly in resident blood cells, but not in parenchymatous cells. TOS-1 cells aggregate together strongly through adhesion with peripheral blood mononuclear cells to form large clumps. This suggests the possibility that such aggregates may form embolisms of microvasculature, particularly in the lung, which initiate metastasis. Other possible roles of higher gangliosides in RCC in promoting metastasis and tumor progression are discussed.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
498
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
116-20
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Binding specificity of siglec7 to disialogangliosides of renal cell carcinoma: possible role of disialogangliosides in tumor progression.
pubmed:affiliation
Pacific Northwest Research Institute, Seattle, WA 98122-4327, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.