PhasAGE – Excellence Hub on Phase Transitions in Aging and Age-Related Disorders
EXPERT SEMINAR SERIES
The PhasAGE Expert Seminars consist of a series of talks with speakers from PhasAGE partner’s institutions to promote a successful transfer of knowledge about PhasAGE topics – biomolecular phase separation, aging and age-related diseases – between the partners of the consortium.
The seminars are integrated into visiting actions between the institutions to create an interdisciplinary environment for collaborative research on biomolecular phase transitions.
Due to the Covid-19 pandemic situation, the seminars scheduled until November 2021 will be exclusively online.
Online seminars include a 30 min talk followed by a Q&A session. Registration is free but mandatory.
More information coming soon
3 December 2021 - 1 PM CET | i3S - Auditorium Mariano Gago
The seminar is co-organized with the i3S Friday Noon Seminar Series.
The seminar will be broadcast via Youtube to those who are not able to attend in person. However, online participants will not be able to interact or make questions to the speaker.
Natural and Synthetic Prion-like Domains: Functions and Applications
Amyloid fibrils are most known because of their association with disease. However, nature also exploits amyloid structures for functional purposes, and, indeed, researchers have used the unique molecular architecture of amyloids to build up different materials. Prions are a particular set of amyloids that can switch between a soluble conformation and an amyloid state. This ability usually relies on a disordered and low-complexity region known as the Prion Domain. Originally thought to be restricted to yeast, functional prion-like proteins displaying these sequences have also been identified in other organisms. Here we describe how a natural Prion-like Domain (PrLD) has evolved to substitute for the function of extracellular globular domains in bacteria and demonstrate how the particular properties of this kind of sequences can be employed to design synthetic PrLDs able to self-assemble into novel functional nanomaterials.
Host: Sandra Ribeiro (IBMC/i3S)
15 November 2021 - 3 PM CET | ONLINE EVENT
Dissecting the contribution of motor-cargo adaptors to microtubule-based transport in neurons
Reto Gassmann is a group leader at the Institute for Research and Innovation in Health (i3S) in Porto interested in cell division and microtubule-based intracellular transport. His group uses live-cell fluorescence microscopy, genetics, and biochemical approaches in the nematode Caenorhabditis elegans and human cultured cells to study the function and regulation of cytoplasmic dynein 1, the major microtubule minus end-directed motor in animal cells.
Long-rage intracellular transport of vesicles and organelles by microtubule-based motors is critical for the development, survival, and function of neurons. A central unanswered question is how the microtubule minus end-directed motor cytoplasmic dynein 1 (dynein) and plus end-directed kinesins work together to set up useful bi-directional transport systems. To gain insight into the underlying regulatory mechanisms, our approach is to generate and characterize separation-of-function mutations that disrupt specific protein-protein interactions between motors and their cargo adaptors. I will present our recent work on the conserved MAP kinase scaffold JIP3, which suggests that JIP3 uses its interaction with dynein and kinesin-1 to drive bi-directional transport of endo-lysosomal organelles in C. elegans touch receptor neurons.
Chair: Valérie Bercier (VIB-KU Leuven)
14 June 2021 - 3 PM CET | ONLINE EVENT
Inhibition of age-associated genomic instability: emerging strategy to delay cellular senescence and aging
Since 2015 E. Logarinho (EL) leads the Aging & Aneuploidy group, dedicated to high-profile research on the mechanisms of cell cycle deregulation and genomic instability contributing to aging and age-related diseases. The group applies interdisciplinary approaches to address how regulated instruction of proliferative fitness and genomic stability decelerates senescence in mouse models of Down syndrome, progeria and aging. Within i3S Cancer Program, EL is tackling the question on how aging is the major risk factor for tumorigenesis, with focus on chromosomal instability and senescence. EL is currently vice-coordinator of the Cancer Program and member of the Restrictive Scientific Council.
One of the major goals of aging research is to develop strategies to delay and even reverse aging. Emerging findings indicate that genomic variations are a relevant and under-recognized mechanism underlying human aging and age-related diseases. Our group has been focused on genetic and pharmacological interventions protecting against genomic instability and addressing their impact in senescence accrual. Our recent findings will be presented.
Chairs: Javier Garcia-Pardo (UAB) and Susanna Navarro (UAB)
26 April 2021 - 3 PM CET | ONLINE EVENT
Phase Separation: an emergent function of disordered proteins
Director of VIB’s Structural Biology Research Center in Belgium. Peter is also a professor of biochemistry at the VUB (Free University Brussels), and at the Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences (Budapest, Hungary).
Peter Tompa is an expert in structurally disordered proteins and phase separation research in cell physiology and disease.
Intrinsically disordered proteins (IDPs) lack a well-defined structure, yet they fulfil important functions in the cell. It was recently recognized that they can undergo physiological condensation (liquid-liquid phase separation, LLPS) leading to the formation of cellular membraneless organelles (MLOs), such as the nucleolus and stress granules. Due to its prevalence and importance in cell physiology and pathology, the mechanism of LLPS is recently under intense scrutiny. This seminar will cover key aspects of LLPS and the formation of MLOs, and highlight basic conceptual, computational and experimental challenges of this new field.
Chairs: Isabel Cardoso (IBMC/i3S) and Ana Rita Costa (IBMC/i3S)