CORDIS
EU research results

CORDIS

English EN
Dissecting the Molecular Mechanism of Catastrophic DNA Rearrangement in Cancer

Dissecting the Molecular Mechanism of Catastrophic DNA Rearrangement in Cancer

Objective

Recent cancer genome analyses have led to the discovery of a process involving massive genome structural rearrangement (SR) formation in a one-step, cataclysmic event, coined chromothripsis. The term chromothripsis (chromo from chromosome; thripsis for shattering into pieces) stands for a hypothetical process in which individual chromosomes are pulverised, resulting in a multitude of fragments, some of which are lost to the cell whereas others are erroneously rejoined. Compelling evidence was presented that chromothripsis plays a crucial role in the development, or progression of a notable subset of human cancers – thus, tumorigensis models involving gradual acquisitions of alterations may need to be revised in these cancers.

Presently, chromothripsis lacks a mechanistic basis. We recently showed that in childhood medulloblastoma brain tumours driven by Sonic Hedgehog (Shh) signalling, chromothripsis is linked with predisposing TP53 mutations. Thus, rather than occurring in isolation, chromothripsis appears to be prone to happen in conjunction with (or instigated by) gradually acquired alterations, or in the context of active signalling pathways, the inference of which may lead to further mechanistic insights. Using such rationale, I propose to dissect the mechanism behind chromothripsis using interdisciplinary approaches. First, we will develop a computational approach to accurately detect chromothripsis. Second, we will use this approach to link chromothripsis with novel factors and contexts. Third, we will develop highly controllable cell line-based systems to test concrete mechanistic hypotheses, thereby taking into account our data on linked factors and contexts. Fourth, we will generate transcriptome data to monitor pathways involved in inducing chromothripsis, and such involved in coping with the massive SRs occurring. We will also combine findings from all these approaches to build a comprehensive model of chromothripsis and its associated pathways.

Principal Investigator

Jan Oliver Korbel (Dr.)

Host institution

EUROPEAN MOLECULAR BIOLOGY LABORATORY

Address

Meyerhofstrasse 1
69117 Heidelberg

Germany

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 1 471 964,05

Principal Investigator

Jan Oliver Korbel (Dr.)

Administrative Contact

Virginia Otón García (Ms.)

Beneficiaries (1)

Sort alphabetically

Sort by EU Contribution

Expand all

EUROPEAN MOLECULAR BIOLOGY LABORATORY

Germany

EU Contribution

€ 1 471 964,05

Project information

Grant agreement ID: 336045

Status

Closed project

  • Start date

    1 April 2014

  • End date

    31 January 2019

Funded under:

FP7-IDEAS-ERC

  • Overall budget:

    € 1 471 964,05

  • EU contribution

    € 1 471 964,05

Hosted by:

EUROPEAN MOLECULAR BIOLOGY LABORATORY

Germany