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Stem Cells and Cancer Group
Strategic Goals
- To describe the key molecular mechanisms responsible for the self-renewal of colon cancer stem cells (CoCSC).
- To identify the central molecules responsible for the development of metastasis in colon cancer.
- To investigate the relevance of novel transcription factors as nuclear effectors of Wnt/betacatenin signal in colon cancer.
- To test the efficacy of known and new drugs on CoCSC, with special attention to the molecular mechanisms involved in chemoresistance and metastasis.
Current objectives
- To characterize the gene expression profile specific to the new CoCSC populations described in our laboratory. This screening approach will allow us to identify new molecules specifically expressed by CoCSC, which could become effective biomarkers for predicting tumor progression and response to therapy.
- To finish our first project relating to Wnt/beta-catenin and PI3K/Akt/FOXO pathways in colon cancer metastasis.
- Study of the relevance of mechanisms in the acquisition of stem cell properties and resistance to Akt inhibitors.
Team
Principal Investigator
Post-doctoral Fellows
- Stephan Tenbaum PhD
- Isabel Puig PhD
Graduate Student
Technicians
Publications
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Barbáchano A, Ordóñez-Morán P, García JM, Sánchez A, Pereira F, Larriba MJ, Martínez N, Hernández J, Landolfi S, Bonilla F, Pálmer HG, Rojas JM, Muñoz A.
SPROUTY-2 and E-cadherin regulate reciprocally and dictate colon cancer cell tumourigenicity.
Oncogene 2010 Aug; 29(34): 4800-13
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Martínez-Iglesias O, Garcia-Silva S, Tenbaum SP, Regadera J, Larcher F, Paramio JM, Vennström B, Aranda A.
Thyroid hormone receptor beta1 acts as a potent suppressor of tumor invasiveness and metastasis.
Cancer Res. 2009 Jan; 69(2): 501-9
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Puig I, Yajima I, Bonaventure J, Delmas V, Larue L.
The tyrosinase promoter is active in a subset of vagal neural crest cells during early development in mice.
Pigment Cell Melanoma Res 2009 Jun; 22(3): 331-4
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Puig I, Champeval D, De Santa Barbara P, Jaubert F, Lyonnet S, Larue L.
Deletion of Pten in the mouse enteric nervous system induces ganglioneuromatosis and mimics intestinal pseudoobstruction.
J. Clin. Invest. 2009 Dec; 119(12): 3586-96