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The GIGA awarded with an European grant from Infect-Era
The GIGA has been recently awarded with an European grant from the 4th call of the Infect-Era. The laboratory of Emmanuel Dejardin, together with research groups from France (Fabien Zoulim, CRCL, and François-Loïc Cosset, CIRI) and Germany (Mathias Heikenwalder, Heidelberg), is involved in a project called Target-HDV.
HDV (Hepatitis Delta Virus) super-infection of chronically HBV-infected patients is the most aggressive chronic form of viral hepatitis, with an accelerated progression towards fibrosis/cirrhosis and an increased risk of liver failure, hepatocellular carcinoma, and death. Around 15-20 millions of people are co-infected with HBV and HDV viruses, ranking this co-infection as one of the most prevalent and most clinically challenging worldwide.
HDV infection is not susceptible to available direct anti-HBV drugs (nucleoside analogs) and suboptimal responses are obtained with IFNα based therapy. Moreover, the number of investigational drugs against HDV infection remains limited; it is mainly due to the fact that (i) HDV does not encode an enzymatic activity, (ii) there are gaps in our knowledge of the HDV viral life cycle and its interaction with HBV, and (iii) until recently no appropriate in vitro model of co-infection to screen for molecules was available.
The goal of this project is to better understand how the NF-kB signaling pathways contribute to the anti-HDV response and to optimize the use of NF-kB inducers for a cure of HDV.
In collaboration with a team at the University of California at Los Angeles (UCLA), researchers from GIGA-Neurosciences have discovered a new gene responsible for a seizure syndrome called juvenile myoclonic epilepsy (JME). This discovery was made as part of an international consortium that studies genetic abnormalities responsible for epileptic diseases. It is being published this week in
The LIGHTSHEET MICROSCOPY can deliver optical sections, 3D reconstructions and timelapse movies of whole sample volumes at subcellular resolutions. The fast scan speeds and low phototoxicity of the lightsheet allow to record the development of fluorescent transgenic animals over long time periods, such as zebrafish embryos. Alternatively 3D reconstructions of fixed whole organs or whole embryos,
The researchers discovered that this cellular dialogue controls the growth of the cerebral cortex and that its impairment leads a cortical malformation previously associated with autism in mice . Their results are published in the prestigious scientific journal Cell. The cerebral cortex contains excitatory and inhibitory interneurons. The former are produced locally and move by