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Planarian cell structure: a comparative review of methods and an improved protocol for primary cultures of neoblasts
Schürmann, W.; Peter, R. (2001). Planarian cell structure: a comparative review of methods and an improved protocol for primary cultures of neoblasts. Belg. J. Zool. 131(Suppl. 1): 123-130
In: Belgian Journal of Zoology. Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique: Gent. ISSN 0777-6276; e-ISSN 2295-0451, meer
Ook verschenen in:
Saló, E.; Watson, N.; Schockaert, E. (Ed.) (2001). Proceedings of the 9th International Symposium on the Biology of the Turbellaria, Barcelona, Spain, June 2000. Belgian Journal of Zoology, 131(Suppl. 1). Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique: Diepenbeek. 236 pp., meer
Peer reviewed article  

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Trefwoorden
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    Laboratory culture > Cell culture
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  • Schürmann, W.
  • Peter, R.

Abstract
    To develop an improved method for preparing and cultivating planarian cells, several protocols published previously were compared with each other. Cells, and in particular neoblasts, proved remarkably resistant to hyposmotic conditions. However, survival periods depended critically on the content in nutrients and on osmotic conditions. Starting from an optimized method to disintegrate planarian tissues and prepare purified neoblast fractions, different media and additives were tried. Hyposmotic media and layers of extracellular matrix components enhanced the adhesion of neoblasts and favoured the formation of transient processes. Proteins in the medium supported long-term survival of neoblasts that retained a spherical shape. Eventually, an isosmotic medium was devised that supported the survival of neoblasts with a viability of 46% on day 31 of primary cultures. With light microscopical techniques, no signs of differentiation were observed in these cultures. Mitoses were detected until the second day of cultivation. In contrast, cultures of total cells still displayed mitoses after 7 days of cultivation. Some guidelines are proposed for future research directed towards establishing permanent neoblast lines.

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