Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1991-9-16
pubmed:abstractText
A cell line of larval Echinococcus multilocularis has been established from an echinococcal cyst excised surgically from a patient with alveolar hydatid disease. A standardized procedure established for the preparation and continuation of primary cultures was applied to isolate the E. multilocularis cells from the tissue fragments. Trypsin was used for the enzymatic release of the monodispersed cells from the tissue fragments and for dispersing monolayers. The culture medium was RPMI 1640 with 10% fetal calf serum. Cell supports were collagen-coated plastic dishes and flasks. The morphological features of the cultured cells showed spindle-like cells during the first few subcultures, and then polygonal or star-like cells. Population doubling time at passage 34 was approximately 23 h and plating efficiency at the same passage was 15%. Chromosome numbers obtained from 70 metaphase plates at passage 40 ranged between 14 and 104 and cells with 91-100 chromosomes were clearly predominant. The chromosomes could be morphologically classified into telocentric, subtelocentric, and metacentric types. Over 90% of the chromosomes were of the telocentric type. Cells collected at passage 57 were intraperitoneally inoculated into two cotton rats (Sigmodon hispidus) at a cell concentration of 10(7) and the rats were sacrificed 100 days later. It was found that the two rats had echinococcal cyst masses in the peritoneal cavity. This result indicates that our isolated cells are germinal cells with ability to differentiate into cystic structures in vivo.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0020-7519
pubmed:author
pubmed:issnType
Print
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
233-40
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
An established cell line of larval Echinococcus multilocularis.
pubmed:affiliation
Hokkaido Institute of Public Health, Sapporo, Japan.
pubmed:publicationType
Journal Article