This is the end of the 6-month internship of Natacha in HCS Pharma, about the microenvironment modifications in Parkinson’s disease. Indeed, in vivo studies in the literature showed that the neuronal death in Parkinson’s disease involved Extracellular Matrix (ECM) modifications, including an increase in some components like collagen and a Read more…
Presentation in english Environ 90 % des candidats médicaments échouent aux essais cliniques, notamment en neurologie, faute d’efficacité. Cela met en évidence un manque de pertinence dans les modèles précliniques, y compris les modèles in vitro, qui ne prennent pas en compte le microenvironnement, composé par les cellules gliales et Read more…
It is our pleasure to announce that the article of our PhD Student Véronique De Conto has been published in Toxicology in vitro journal. This work comes from a collaboration between HCS Pharma and Inserm Unit “Degenerative & vascular cognitive disorders”. This article highlight the importance to consider carefully the Read more…
Ask for high quality link by putting your email below There is a 90% failure in clinical trials, due to efficacy and safety issues, which frequently concerns the central nervous system. That points a lack of relevance of preclinical models used upstream. In this frame, the aim of this study Read more…
The international NeuroFrance congress will take place May, 19, 20 and 21th 2021 (virtual meeting). On this occasion, our PhD student Véronique De Conto will present these works in a poster about the importance of matricial and cellular microenvironment for drug discovery in Parkinson’s disease (summary below). Feel free to Read more…
The pharmaceutical industries face to a major issue, which is a very high failure rate in drug discovery, with 90% of failure in clinical trials. The central nervous system is particularly concerned, with an involvement in 30% of safety failure in clinical trials, but only in 7% in preclinical trials Read more…
Parkinson’s disease affects more than 6 million people worldwide. This neurodegenerative disease is characterized by the death of dopaminergic neurons in the substantia nigra pars compacta, with intracellular accumulation of alpha-synuclein aggregates known as Lewi bodies. This neuronal loss leads to a decrease in the neurotransmitter dopamine that cause mainly Read more…
There are 90% of failure in clinical trials, mainly due to safety and efficiency issues. In particular, the central nervous system is involved in 34% of failure in clinical trials, but only in 7% of failure in preclinical trials (Cook et al., 2014). That points a lack of relevance in Read more…
The human brain contains approximately 86 billon neurons of different types, distributed and organized in different areas ; their functions vary according to the neuron type and its localization within the brain. However, the neuronal function also depends on its microenvironment, which is composed of the extracellular matrix (ECM), and Read more…
The brain extracellular matrix (ECM) has a specific composition. Contrary to other organs, this ECM contains a low level of fibrous proteins, like collagen and fibronectin. Actually it is mainly composed of proteoglycans, which are composed of sulfated glycosaminoglycans (GAGs) covalently bound to a core protein. Hayluronic acid (HA), a Read more…
Stroke is the second leading cause of death worldwide and the most common cause of disability in adults. Ischemic stroke represents 80% of the cases. They cause oxygen and glucose deficit in the brain, leading to necrosis, edema formation, inflammation and apoptosis. Endogenous repair mechanisms, like cerebral plasticity, limit ischemia-linked Read more…
James W. Fawcett published the review « The extracellular matrix in plasticity and regeneration after CNS injury and neurodegenerative disease » in 2015, highlighting the key role of the chondroitin sulfate proteoglycans (CSPGs) of the extracellular matrix (ECM) in brain plasticity. CSPGs are present in the brain extracellular matrix and Read more…
Since last year, our PhD student Véronique De Conto has been working on the impact of microenvironment in cerebral in vitro model. On the supervision of our study director Dr. Elodie Vandenhaute and her thesis director Pr. Vincent Bérézowski (Inserm U1171), she developed two different cerebral in vitro models: A Read more…
The annual congress of Biology and Health PhD students from Lille (André Verbert day) took place at the Faculty of Medicine Thursday, September 10th. During this day, PhD students, in third year of thesis, had to present their works by talks, flash-talks or posters. Our PhD student Véronique De Conto Read more…
The annual SCMC congress (Société Cerveau et Maladies Cérébrovasculaires – Brain and Cerebrovascular diseases Society) took place in Lille last week, in the Faculty of Medecine. The congress was organized in three sessions. The first session was about cerebrovascular development and maturation. The conferences began with a lecture about blood-brain Read more…
Véronique De Conto, doctorante chez HCS Pharma, présentera ce jeudi 28 mars à Lille, au congrès annuel de la Société Cerveau et Maladies Cérébrovasculaires, le développement d’un modèle cérébral en 3 dimensions incluant le microenvironnement matriciel pour la recherche de nouveaux médicaments contre la maladie de Parkinson. Introduction : 90% Read more…
The first version of BIOMIMESYS Brain allows to form neurospheres. We now developped a new version of BIOMIMESYS Brain, which allows to form neuronal networks. This version have a higher porosity than BIOMIMESYS Brain (Neurosphere), that allows to better disperse the cells and thus to form cell network instead of Read more…
A new BIOMIMESYS® hydroscaffold is available for 3D cell culture! This hydroscaffold is suitable for neuronal cell culture. We tested it for two cell lines: SH-SY5Y cells, commonly used for pharmaceutical research, and LUHMES cells (dopaminergic neurons). Cells grow and form spheroids with intra and inter-spheroidal neurites. BIOMIMESYS® hydroscaffold allows Read more…
Review of Human neuro-astrocytes 3D co-culture-based assay for evaluation of neuroprotective compounds (Terrasso et al. 2017) Terrasso et al. published a study about a neuroprotection assay on a 3D model in 2017. They developed a 3D co-culture of neurons and astrocytes by means of an agitation-based culture system. Then they Read more…
Sood et al. published in 2016 an interesting article about the effect of extracellular matrix (ECM) on in vitro neuronal cells culture: “Fetal brain extracellular matrix boosts neuronal network formation in 3D bioengineered model of cortical brain tissue “. The aim of the study was to study the effects of Read more…