Wnt/β-Catenin Signaling Regulates Telomerase in Stem Cells and Cancer Cells

Author:

Hoffmeyer Katrin1,Raggioli Angelo1,Rudloff Stefan1,Anton Roman1,Hierholzer Andreas1,Del Valle Ignacio1,Hein Kerstin1,Vogt Riana1,Kemler Rolf1

Affiliation:

1. Department of Molecular Embryology, Max Planck Institute of Immunobiology and Epigenetics, Stuebeweg 51, D-79108 Freiburg, Germany.

Abstract

From Wnt Signals to Telomerase Activity Telomerase activity is associated with stem cell renewal and cancers, whereas a decrease in telomerase activity is seen during cell differentiation and senescence. Wnt/β-catenin signaling is also a critical regulator of stem cells, and deregulation of the pathway is associated with cancer. Now, Hoffmeyer et al. (p. 1549 ; see the Perspective by Greider ) have found a link between these two pathways. In embryonic stem cells, β-catenin was able to regulate telomerase expression and activity directly. Similar observations were obtained in adult stem cells, a model of intestinal tumors, and human cancer cells.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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