Linked Life Data

11105195

Source:http://linkedlifedata.com/resource/pubmed/id/11105195

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-1-26
pubmed:abstractText
Cell cultures are innovative tools for e.g. biocompatibility testing of biomaterials in vitro. In our studies we used fibroblast, endothelial cell and chondrocyte cultures of human origin and of the test animal species most common for this purpose in vivo. Verification of the identity of these cells is obligatory for reproducibility of the tests and valid interpretation of the results. Cultured cells have to be checked for identity, contaminations of various origins and also for genomic mutations occuring during prolonged cultivation in vitro or due to exposition to biomaterials. Furthermore, the risk of genetic cross-contamination with other cells increases with the number of cell cultures passaged parallel in the same laboratory. Therefore, we generated reference fingerprints of the cultures in varying passages for comparative monitoring of cells purposed for in vitro tests. Minisattelite DNA polymorhism resulting in reproducible individual DNA fingerprints is very discriminatory and can be used for cell culture monitoring. The patterns are stable over several passages, although sudden changes did happen in two cases, i.e. loss/gain of bands or changes in band-intensity, indicating massive genomic mutations of the cultures in vitro. Influences of biomaterials on the prints could not be detected. Several tasks can be followed at the same time: detection of contaminant cells, identification of these cells of primary culture origin used for in vitro testing and finally, monitoring for eventual genomic mutations due to prolonged cultivation or contact to biomaterials. Inconclusive results in just one of these aspects should lead to the disqualification of the monitored cultures from usage in vitro.
pubmed:language
ger
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1868-596X
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
135-7
pubmed:dateRevised
2010-6-22
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
[Concerning cell cultures for biocompatibility-testing: monitoring by DNA-fingerprinting].
pubmed:affiliation
Institut für Biomedizinische Forschung, Universität A-Wien.
pubmed:publicationType
Journal Article, English Abstract