How microRNA work and influence tumour growth

The analysis of tumour remains fascinating. While e.g. viruses, methylation of DNA, gene silencing, mutations and deletions have been recognized for some time to play major roles in tumour development, a new player has emerged only recently: microRNA or miRNA. An Open Access review in Current Biology ( http://dx.doi.org/10.1016/j.cub.2014.06.043) features this new class of molecules and describes how they act on tumours. A must read!

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