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X-WR-CALDESC:Events for Institute for Bioengineering of Catalonia
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DTSTART;TZID=Europe/Madrid:20240913T140000
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DTSTAMP:20260418T061818
CREATED:20240909T074915Z
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UID:120320-1726236000-1726245000@ibecbarcelona.eu
SUMMARY:IBEC Seminar: Prof Marcelle Machluf
DESCRIPTION:Harnessing the power of stem cell therapy in an off-the-shelf nano-delivery platform for treating brain disorders\nProf Marcelle Machluf\, Faculty of Biotechnology and Food Engineering\, Technion\, Haifa\, Israel \nMesenchymal stem cells (MSCs) have gained the most attention in cell therapy\, owing to their ability to traverse physiological barriers\, and target different sites of inflammation including neurological deseases and primary and metastatic tumors\, while exhibiting relative allogeneic safety. However\, once transplanted\, MSCs undergo changes that alter their targeting capabilities and increase their immunogenicity\, only permitting them to exert a short hit-and-run effect. We hypothesised that overcoming these challenges can be realised by combining the safety and inflamatory targeting capabilities of MSCs in an inanimate platform that can withstand limiting host influences. The foundations for this combination are laid by a novel class of nano-vesicles (200 nm)\, termed nano-ghosts (NGs)\, equipped with the membrane proteins of MSCs and can be engineered to express additional exogenous ones. The developed -cGMP compliant- technology for the production of NGs from the whole MSC membranes\, allow us to load them with a diverse payloads and/or engineer them to express ligands that can combat brain tumors and neuroinflamatory deseas such as MS.  Their abundance of natural targeting mechanisms allows the NGs\, injected i.v.\, to bypass the BBB and penetrate the entire tumor bulk or inflamatory site\, and rapidly deploy their payload directly into the targeted cells leading to unprecedented tumor growth inhibition and increased animals’ survival in intracranial glioma model. Surprising data also demonstrate that the NGs by themselves can modulate inflammation via cell-cell interaction and significaly reduce MS symtomes in EAE mice without any payload\, paving the way for their use in other neuroinflamatory deseas such as Alzhimer and Parkinson. Thus\, our results\, so far\, clearly demonstrate the translational potential of NGs\, both as targeted delivery platform as well as a novel immunomodulatory biologic  for brain diseass. \n 
URL:https://ibecbarcelona.eu/event/ibec-seminar-prof-marcelle-machluf/
LOCATION:Sala Dolors Aleu\, Cluster II\, IBEC\, Baldiri i Reixac\, Barcelona
CATEGORIES:IBEC Seminar
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DTSTART;TZID=Europe/Madrid:20240918T120000
DTEND;TZID=Europe/Madrid:20240918T130000
DTSTAMP:20260418T061818
CREATED:20240620T104256Z
LAST-MODIFIED:20240719T064603Z
UID:118726-1726660800-1726664400@ibecbarcelona.eu
SUMMARY:IBEC Seminar: Maria João Amorim
DESCRIPTION:Advances in understanding and manipulating influenza A virus liquid inclusions\nMaria João Amorim\, PhD\, Group Leader\, Cell Biology of Viral Infection Lab\, Católica Biomedical Research Centre\, Universidade Católica Portuguesa\, and Instituto Gulbenkian de Ciência\, Portugal \nMany viruses form biomolecular condensates de novo as part of their replication programmes. Influenza A virus is an important human pathogen that has the genome divided into eight different RNA segments. Interestingly\, each infectious particle contains no more than eight RNA segments and one of each type. Here\, we show that during infection influenza forms liquid condensates named viral inclusions where the eight RNA segments accumulate. Viral inclusions are formed with a single RNA type\, suggesting that these structures are formed before the genomic complex assembles and raises the hypothesis that these are specialized sites for the formation of influenza epidemic and pandemic genomic complexes. We will exchange views on why being liquid could constitute an interesting framework for understanding how influenza genomic complex forms. After\, we will expose advances on how viral inclusions are formed and provide proof of the concept that condensate hardening blocks viral infection in cellula and in vivo. Since native or engineered transitions affect condensate behavior\, phase transitions may offer novel antiviral opportunities for influenza\, as well as for many other viruses that utilize biomolecular condensates during their lifecycle. Finally\, we will show that our efforts to reconstitute in vitro influenza A virus inclusions give rise to a network of interactions built specifically during infection but\, despite being dynamic\, are not liquid but rather a gel-like state. We debate several hypothesis on why we have been unable for far to attain a liquid like character.
URL:https://ibecbarcelona.eu/event/ibec-seminar-maria-joao-amorim/
LOCATION:Sala Dolors Aleu\, Cluster II\, IBEC\, Baldiri i Reixac\, Barcelona
CATEGORIES:IBEC Seminar
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