Linked Life Data

10235390

Source:http://linkedlifedata.com/resource/pubmed/id/10235390

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1999-8-2
pubmed:abstractText
During vertebrate limb development, the limb bud grows along the proximo-distal (P-D) direction, with the cells changing their adhesiveness. To know whether the position-related differences in cell adhesiveness are actually utilized by morphogenesis to constitute limb structures, we grafted cell aggregates made of dissociated cells derived from different positions and stages of developing hind limb buds into developing hind limb buds and observed the behavior of the cells. Cell aggregates made of dissociated mesenchymal cells from two different origins were implanted in different positions and stages of limb buds or grafted on limb stumps made by cutting. The two grafted cell populations in the aggregate always sorted out from each other, but their patterning of sorting-out was quite different according to the transplanted regions. In summary, cells in the aggregate that have closer positional identity to the transplanted site were always situated at the boundary between host and donor cells. The pattern of sorting-out seemed to be determined by the relative adhesiveness of surrounding cells to the constituent cells of the aggregates. We also transplanted fragments dissected out from different regions along the P-D axis into st. 50 limb buds. The descendants of grafted cells moved distally to the region corresponding to their positional identity and participated in the formation of more distal structures from that point. These results suggest that the difference in cell adhesiveness may probably play a role in arranging cells along the P-D axis of a developing limb bud.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0214-6282
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
141-8
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Behavior of cells in artificially made cell aggregates and tissue fragments after grafting to developing hind limb buds in Xenopus laevis.
pubmed:affiliation
Division of Biological Sciences, Graduate School of Science, Hokkaido University, Sapporo, Japan. nkoib@bio.sci.hokudai.ac.jp
pubmed:publicationType
Journal Article