Prrx1 y metástasis

Científicos descubren un gen que ayuda a entender la metástasis del cáncer. Es un componente adicional que hace más eficiente la formación de metástasis.
Los científicos podrán comprender mejor por qué hay metástasis. El reto ahora es 'apagar' el gen que causa la propagación del cáncer.


Metastatic colonization requires the repression of the epithelial-mesenchymal transition inducer Prrx1.

Ocaña OH, Córcoles R, Fabra A, Moreno-Bueno G, Acloque H, Vega S, Barrallo-Gimeno A, Cano A, Nieto MA

Abstract: The epithelial-mesenchymal transition (EMT) is required in the embryo for the formation of tissues for which cells originate far from their final destination. Carcinoma cells hijack this program for tumor dissemination. The relevance of the EMT in cancer is still debated because it is unclear how these migratory cells colonize distant tissues to form macrometastases. We show that the homeobox factor Prrx1 is an EMT inducer conferring migratory and invasive properties. The loss of Prrx1 is required for cancer cells to metastasize in vivo, which revert to the epithelial phenotype concomitant with the acquisition of stem cell properties. Thus, unlike the classical EMT transcription factors, Prrx1 uncouples EMT and stemness, and is a biomarker associated with patient survival and lack of metastasis.

PMID: 23201163 [PubMed - indexed for MEDLINE]
Cancer Cell. 2012 Dec 11;22(6):709-24. doi: 10.1016/j.ccr.2012.10.012

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