Document Detail


Effects of ageing and long-term subcultivation on collagen lattice contraction and intra-lattice proliferation in three rat cell types.
MedLine Citation:
PMID:  3172859     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Many cells can contract a hydrated collagen lattice when seeded within one, reorganizing the collagen fibrils into a compact structure by tractional forces exerted during cell movement and translocation. The effects of ageing on this tractional-motility property of cells was examined for three cell types from adult Fischer 344 male rats: skin fibroblasts, aortic smooth muscle cells, and dedifferentiated chondrocytes. All cell types at low population doubling levels (PDL less than 10) contracted collagen lattices, though with different proficiencies (smooth muscle cells greater than dedifferentiated chondrocytes greater than skin fibroblasts). There was no significant difference in contraction ability of cell isolates of the same type obtained from 4-month and 24-30-month animals. Cells that had been subcultivated extensively (PDLs of 50-110) retained contractional ability. The cell types proliferated within lattices to varying extents, and there was no correlation between a cell type's extent of proliferation in a lattice and its proliferation in monolayer culture. That lattice contraction ability is preserved intact with ageing in three cell types suggests that the tractional forces exerted by cells on a collagen matrix in vitro may have a significant role in adult life in vivo.
Authors:
S Y Wang; C Merrill; E Bell
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Mechanisms of ageing and development     Volume:  44     ISSN:  0047-6374     ISO Abbreviation:  Mech. Ageing Dev.     Publication Date:  1988 Aug 
Date Detail:
Created Date:  1988-11-21     Completed Date:  1988-11-21     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0347227     Medline TA:  Mech Ageing Dev     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  127-41     Citation Subset:  IM    
Affiliation:
Department of Biology, Massachusetts Institute of Technology, Cambridge 02139.
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MeSH Terms
Descriptor/Qualifier:
Aging*
Animals
Cartilage / cytology
Cell Movement
Collagen / metabolism*
Muscle, Smooth, Vascular / cytology
Rats
Rats, Inbred F344
Skin / cytology
Chemical
Reg. No./Substance:
9007-34-5/Collagen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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