cicCartuja Centro de Investigaciones Científicas de la cartuja

< Alberto Jiménez Premio Extrardinario de Doctorado 2016-2017
18 October 2019 11:46 Age: 3 Years
Category: IIQ

International Symposium Membrane-Less Organelles in Cell Life and Disease

It will be held in Seville (Spain), on 10 - 11 March 2020, under the auspices of Ramón Areces Foundation at cicCartuja.

The International Symposium on Membrane-Less Organelles in Cell Life and Disease will be focused on the characterization of cellular organelles lacking membrane boundaries, as well as on their involvement in cell metabolism and disease progression. It will be held in Seville (Spain), on 10 - 11 March 2020, under the auspices of Ramón Areces Foundation at cicCartuja, a joint research center of the University of Seville (US), the Spanish Research Council (CSIC) and the Autonomous Government of Andalusia, and it will be coordinated by Professors at the University of Seville, Miguel A. De la Rosa and Irene Díaz-Moreno.

How do cells enable internal spatiotemporal control of complex biochemical reactions?

How do cells enable internal spatiotemporal control of complex biochemical reactions? They have partly solved this question by creating compartments, or organelles, that allow distinct chemical environments. Most of these compartments are surrounded by membranes (nucleus, mitochondria, chloroplasts, lisosomes, etc.). It is thus easy to understand how such membrane-bound compartments cohabit and work in the cells. On the contrary, many other compartments (nucleoli, centrosomes, Cajal bodies, stress granules, etc.) lack membranes and explaining their coexistence inside the cells is harder. Such membrane-less organelles (MLOs) remain separated in the cell by avoiding the mixture of their components with the surroundings. The following questions soon arise: Are there molecules transported in and out of MLOs? How fast must the diffusion of the components within MLOs be to guarantee efficient chemical reactions?

Recent experimental evidences have shown that many MLOs are liquid droplets formed by phase separation, thereby allowing MLO components to be rapidly concentrated in a concrete place in the cell. The transient assembly of liquid drops is driven by i) multivalent weak interactions between signaling domains repetitively included in proteins and RNA, and ii) substantial conformational heterogeneities of intrinsically disordered regions. Under cell pathology and devastating aggregation diseases, liquid-liquid demixing can eventually turn into metastable condensates of intracellular matter, such as glass/hydrogels or amyloid-like fibers, that undergo liquid-solid phase transitions.

Altogether, liquid-liquid phase separation provides a simple but smart mechanism for the cell to control the spatial localization and processing of molecules, without relying on membrane boundaries.

Cellular biology approaches combined with quantitative biophysical and structural tools are required to elucidate how such non-equilibrium events in living cells control intracellular phase behavior. In this Symposium, the confluence between physicists and cellular and molecular biologists will let us go deeply into the formation of MLOs by liquid-liquid phase transitions and the formation of drops (or droplets) inside the cell. This Symposium aims at gathering pioneering scientists in such a cutting-edge interdisciplinary topic to discuss on MLOs and their impact on diseases. Because of its relevance and novelty, the Symposium will host a round table with senior editors of the three top journals influencing science policy (Cell, Nature, Science).  


Center News

29 October 2018

Aurelio Serrano Delgado, miembro del FEPS-ISOP Joint Committee

El investigador del IBVF ha sido nombrado miembro del comité conjunto FEPS-ISOP en representación de la Federación Europea de Sociedades de Protistología

25 October 2018

Jiménez Solano, Premio NANOMATMOL a la mejor tesis doctoral 2017

El investigador del ICMS reconocido con el 2º accésit del premio concedido por el Grupo especializado de Nanociencia y materiales moleculares de la RSEQ y de la RSEF

24 October 2018

cicCartuja participa en el programa "Ciencia y Tecnología en femenino"

El proyecto en el que colabora el PCT Cartuja persigue fomentar vocaciones y combatir la brecha de género en profesiones científicas y tecnológica

22 October 2018

Irene Díaz-Moreno, FEBS Working Group Chair on the Careers of Young Scientists

La investigadora del IIQ ha sido nombrada líder del grupo de trabajo para la promoción de carreras de jóvenes científicos y miembro del comité ejecutivo

4 October 2018

Obtención de polímeros biomiméticos a la cutina vegetal

Un informe de la Naciones Unidas cita una investigación del ICMS para encontrar materiales alternativos a los plásticos tradicionales

2 October 2018

Alberto Palmero (ICMS), uno de los 40 investigadores seleccionados

Junto a otros especialistas en la detección de gases nocivos, investigará nuevas tecnologías de producción de sensores de gases de efecto invernadero

20 September 2018

9 investigadores del cicCartuja en la European Researchers’ Night 2018

Este evento de divulgación se celebrará el 28 de septiembre simultáneamente en más de 250 ciudades de 32 países europeos