Novel RNA factors may help cancer cells thrive

Like Peter Pan, some cells never grow up. In cancer, undifferentiated stem cells may help tumors such as glioblastoma become more aggressive than other forms of the disease. Certain groups of genes are supposed to help cells along the path to maturity, leaving their youthful “stemness” behind. This requires sweeping changes in the microRNAome — the world of small non-coding material, known as microRNAs, that control where and when genes are turned on and off. Many microRNAs are tumor-suppressive; in cancer, the microRNAome is distorted and disrupted.

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