U830 – Genetics and Biology of Cancers

Teams in this unit study various aspects of tumour development. Two main strategies are being developed:

  • the direct study of human malignancies to better understand their physiopathological mechanisms,

  • the uses experimental models (cells or animals) to address specific aspects of oncogenesis.

A variety of genetic methods including microarray, genotyping and next-generation sequencing analyses are developed to characterise human tumours, as well as molecular biology, cell biology and transgenesis approaches to create and investigate models are being used.

The main research themes of the unit include:

  • The link between oncogenesis, stemness and cell differentiation, especially in neural and mesenchymal cell lineages, with the goal of establishing similarities and differences between the biology of the tumour cells and their corresponding normal cells,
  • The genetic alterations in cancer cells, in particular the mechanisms of genetic instability that may be a cause or a consequence of tumour development,
  • The role of oxidative stress in angiogenesis, cell aging and tumour development,
  • The changes in intracellular traffic and in the cytoskeleton that are associated with malignant transformation.

Key publications

Year of publication 2016

Zeina Kais, Beatrice Rondinelli, Amie Holmes, Colin O'Leary, David Kozono, Alan D D'Andrea, Raphael Ceccaldi (2016 Jun 7)

FANCD2 Maintains Fork Stability in BRCA1/2-Deficient Tumors and Promotes Alternative End-Joining DNA Repair.

Cell reports : 2488-99 : DOI : 10.1016/j.celrep.2016.05.031
Tina Gruosso, Virginie Mieulet, Melissa Cardon, Brigitte Bourachot, Yann Kieffer, Flavien Devun, Thierry Dubois, Marie Dutreix, Anne Vincent-Salomon, Kyle Malcolm Miller, Fatima Mechta-Grigoriou (2016 Mar 24)

Chronic oxidative stress promotes H2AX protein degradation and enhances chemosensitivity in breast cancer patients.

EMBO molecular medicine : 527-49 : DOI : 10.15252/emmm.201505891
Zhi-Yan Han, Wilfrid Richer, Paul Fréneaux, Céline Chauvin, Carlo Lucchesi, Delphine Guillemot, Camille Grison, Delphine Lequin, Gaelle Pierron, Julien Masliah-Planchon, André Nicolas, Dominique Ranchère-Vince, Pascale Varlet, Stéphanie Puget, Isabelle Janoueix-Lerosey, Olivier Ayrault, Didier Surdez, Olivier Delattre, Franck Bourdeaut (2016 Jan 29)

The occurrence of intracranial rhabdoid tumours in mice depends on temporal control of Smarcb1 inactivation.

Nature communications : 10421 : DOI : 10.1038/ncomms10421
Luciana Batista, Brigitte Bourachot, Bogdan Mateescu, Fabien Reyal, Fatima Mechta-Grigoriou (2016 Jan 5)

Regulation of miR-200c/141 expression by intergenic DNA-looping and transcriptional read-through.

Nature communications : 8959 : DOI : 10.1038/ncomms9959

Year of publication 2015

Panagiotis A Konstantinopoulos, Raphael Ceccaldi, Geoffrey I Shapiro, Alan D D'Andrea (2015 Oct 15)

Homologous Recombination Deficiency: Exploiting the Fundamental Vulnerability of Ovarian Cancer.

Cancer discovery : 1137-54 : DOI : 10.1158/2159-8290.CD-15-0714
Tina Gruosso, Camille Garnier, Sophie Abelanet, Yann Kieffer, Vincent Lemesre, Dorine Bellanger, Ivan Bieche, Elisabetta Marangoni, Xavier Sastre-Garau, Virginie Mieulet, Fatima Mechta-Grigoriou (2015 Oct 13)

MAP3K8/TPL-2/COT is a potential predictive marker for MEK inhibitor treatment in high-grade serous ovarian carcinomas.

Nature communications : 8583 : DOI : 10.1038/ncomms9583