cicCartuja Centro de Investigaciones Científicas de la cartuja

< Alberto Jiménez Premio Extrardinario de Doctorado 2016-2017
18 October 2019 11:46 Age: 5 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

19 April 2024

Abiertas inscripciones para el Concurso de Nanorelatos de 10alamenos9 2024

Vuelve el Concurso de Nanorelatos de 10alamenos9: "Caben muchas historias en el nanomundo: ¡cuéntanoslas!" dentro del IX Festival de Nanociencia y Nanotecnología

19 December 2023

Celebrada la entrega de Premios cicCartuja Ebro Foods 2022

Javier Castillo Seoane ha sido el ganador del premio cicCartuja Ebro Foods del año 2022 que alcanza ya la decimotercera edición.

22 November 2023

Jesús Angulo, nuevo presidente del GERMN

El investigador del IIQ, ha sido elegido nuevo presidente del Grupo Especializado de Resonancia Magnética Nuclear de la RSEQ

3 November 2023

Celebramos la Semana de la Ciencia 2023: Café con Ciencia y Jornadas

Durante esta semana, el martes 7 de noviembre, se celebrará el Café con Ciencia y el jueves 9 la Expo del Premio cicCartuja a Futuros Científicos

26 July 2023

Algas y cianobacterias, una simbiosis esencial en los océanos

El grupo de Enrique Flores, junto a Rachel A. Foster, de la S.U., y Mercedes Nieves-Morión, trabajando en ambos laboratorios, indaga en esta simbiosis.

Category: cicCartuja IBVF

5 July 2023

Gran acogida en la celebración del Simposio IBVF 2023

Durante los días 29 y 30 de junio tuvieron lugar estas jornadas donde los grupos han presentado sus resultados más relevantes.

Category: IBVF

26 June 2023

El IIQ participa en un proyecto europeo en la lucha contra el cáncer

El proyecto GlyCanDrug implica 8 líderes académicos europeos entre los cuales está el Grupo de Jesús Angulo

Category: cicCartuja IIQ