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L Rossi, R Batistoni, A Salvetti, P Deri, F Bernini, I Andreoli, A Falleni, and V Gremigni (2001)

Molecular aspects of cell proliferation and neurogenesis in planarians


An MCM2 gene (DjMCM2) which represents a suitable molecular marker for detecting proliferating neoblasts was isolated in planarians. Neoblasts are the only self-renewing cells in these organisms and may be able to differentiate into all cell types lost to physiological turnover or injury. To understand the molecular basis leading to neoblast commitment to a differentiative fate, some regulatory genes were cloned. Our interest was focused on the process of nerve cell differentiation. DjXnp, a planarian gene coding for a protein similar to Xnp/ATRX, a DNA helicase involved in mammalian brain development via chromatin structure modification, was obtained by RT-PCR. A similar strategy was also used to clone two different Pax-6-related planarian genes. Identification of factors involved at different levels in the control of gene expression during nerve cell differentiation could be of importance to understand the regulatory programs, which operate during neoblast differentiation in planarians.

Platyhelminthes; Dugesia japonica; neoblasts; cell proliferation; differentiation; MCM; Pax-6; XNP
9th International Symposium on the Biology of the Turbellaria (ISBT), BARCELONA, SPAIN, JUN, 2000
  • ISSN: 0777-6276

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium


Annales de la Société malacologique de Belgique
​Annales de la Société royale malacologique et zoologique de Belgique
Annales de la Société Royale Zoologique de Belgique
Belgian Journal of Zoology