About the Authors
Institute of Developmental Biology and Cancer, University of Nice, CNRS, Nice, France
DIPTEM, Università degli Studi di Genova, Genova, Italy
Laboratoire JA Dieudonné, University of Nice, CNRS, Nice, France
The authors have declared that no competing interests exist.
The author(s) have made the following declarations about their contributions: Conceived and designed the experiments: MG FS SN. Performed the experiments: MG FS RR. Analyzed the data: MG FS LA SN. Contributed reagents/materials/analysis tools: RR PB LA. Wrote the paper: SN.