Researchers at the IMIM (Institut de Recerca Hospital del Mar) have proven that the absence of the 14-3-3 protein sigma in breast cancer cells is directly associated with these cells’ capacity to activate the signalling of a protein complex called NF-kB, which is related to tumour progression. The activation of NF-kB in tumours was also identified as the best indicator for relapse in breast cancer patients, compared to other parameters currently used, such as the presence of affected ganglions or the tumour’s size and degree. The investigators have also described a group of genes that are activated in breast cancer cells and that are also associated with a poor prognosis in other types of tumours........> Full story