In cancer cells, elevated Brn-3b transcription factor enhances proliferation in-vitro and increases tumour growth in-vivo, whilst conferring drug resistance and migratory potential, whereas reducing Brn-3b slows growth, both in-vitro and in-vivo. Brn-3b regulates distinct groups of key target genes that control cell growth and behaviour. Brn-3b is elevated in >65% of breast cancer biopsies, but mechanisms controlling its expression in these cells are not known.
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01/17/11