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Chromothripsis

Chromothripsis

\KRO-mo-THRIP-sis\ n.

By
12:00am, June 29, 2013
chromosomes

The catastrophic shattering of a chromosome, which can spark cancer development. All or part of a chromosome may break into pieces, some of which reassemble. Leftover fragments can form DNA circles (colored dots, above) that replicate wildly. If the circles contain cancer-causing genes, their proliferation fuels tumor growth. Disintegrating chromosomes may be the cause of many childhood cases of medulloblastoma, an often-deadly brain cancer, researchers in Germany and England report in the March 14 Cell

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