Roux's archives of developmental biology

, Volume 202, Issue 3, pp 170–175

Stability of positional identity of axolotl blastema cells in vitro

  • Anne Lesley Groell
  • David M. Gardiner
  • Susan V. Bryant
Original Articles

DOI: 10.1007/BF00365307

Cite this article as:
Groell, A.L., Gardiner, D.M. & Bryant, S.V. Roux's Arch Dev Biol (1993) 202: 170. doi:10.1007/BF00365307

Summary

Previous grafting experiments have demonstrated that cells from non-contiguous positions within developing and regenerating limbs differ in a property referred to as positional identity. The goal of this study was to determine how long the positional identity of axolotl limb blastema cells is stable during culture in vitro. We have developed an assay for posterior positional properties such that blastema cells can be cultured and then grafted into anterior positions in host blastemas, to determine if they can stimulate supernumerary digit formation. We report that posterior blastema cells are able to maintain their positional identities for at least a week in culture. In addition, we observed that blastema cells are able to rapidly degrade collagenous substrates in vitro, a property that apparently distinguishes them from limb cells of other vertebrates. These results provide information regarding the time boundaries within which the positional properties of blastema cells can be studied and manipulated in vitro.

Key words

Axolotl Cell culture Regeneration Positional information 

Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • Anne Lesley Groell
    • 1
  • David M. Gardiner
    • 1
  • Susan V. Bryant
    • 1
  1. 1.Developmental Biology Center and Department of Developmental and Cell BiologyUniversity of CaliforniaIrvine, IrvineUSA

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