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External seminar - E. Moreno

When Apr 18, 2014
from 02:00 PM to 03:00 PM
Contact Name

Next Friday, April, 18th, Eduardo Moreno (PI, Institute of Cell Biology in Bern)will come for a seminar this Friday at 2pm in the "Salle des Thèses" (ENS, Monod campus).

Eduardo Moreno uses mice and flies to study "Cancer, ageing, multicellularity and cell competition". The title of his talk will be:

"Intercellular communication of Cell Fitness"

 

Here is a brief description of his work:

 

Humans are able to detect fitness decay in other colleagues by simply looking at the graying of the hair or the wrinkles in their faces. Work from my laboratory in the last few years showed that cells can also detect fitness levels of neighboring cells using a molecular code. This molecular code is encoded by different isoforms of a transmembrane protein called Flower that creates a novel mechanism used to reveal the fitness of a cell to its neighbours.

Those "fitness fingerprints" can be used to mediate cell selection by recognizing and eliminating less fit cells. In terms of basic biology, we are currently interested in the molecular and genetic mechanisms that drive active cell selection within tissues. In terms of more applied science, we want to explore how disruption of the mechanisms that mediate cell selection create tissue degeneration, including neurodegeneration, cancer and ageing.

Here are few references related to the topic:

  • Merino MM, Rhiner C, Portela M, Moreno E. "Fitness fingerprints" mediate physiological culling of unwanted neurons in Drosophila. Curr Biol. 2013 Jul 22;23(14):1300-9. doi: 10.1016/j.cub.2013.05.053. Epub 2013 Jun 27.
  • Lolo, F., Casas-Tinto S. and Moreno E. Cell competition timeline: winners kill losers, which are extruded and engulfed by hemocytes. CELL reports, 2 (2012) pp. 526-539. DOI: 10.1016/j.celrep.2012.08.012.
  • Rhiner C, López-Gay JM, Soldini D, Casas-Tinto S, Martín FA, Lombardía L, Moreno E. Flower Forms an Extracellular Code that Reveals the Fitness of a Cell to its Neighbors in Drosophila. DEV. CELL. Vol. 18, Issue 6, 985-998, 2010.