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Seminar

jeudi 27 mai 2021, 11h, Séminaire promotionnel


Chady Jaber

Syntego Inc

“ How to Use the Power of CRISPR in Functional Genomics and Biomarkers Discovery”

This seminar dedicated to researchers at the IRCM will cover the following topics:
    • CRISPR Experimental Design and Optimization (Knock-outs and Knock-ins) 
    • Synthego robust loss of function screens for confident target discovery
    • Using CRISPR to uncover protein functions and pathway analysis

Join us for an interactive session about the latest CRISPR advances and applications. Discover the impact of CRISPR in cancer and genetic disease research.

 

Inscription obligatoire : https://www.synthego.com/events/ircm-virtual-crispr-seminar-05-20-2021?utm_campaign=Seminar&utm_medium=email&_hsmi=2&_hsenc=p2ANqtz-_sudq5Q7awlTD2lNg-tEEocSrQCLkfy39t8xve_RgWiIslJQj6y1Aa-O7uZKp9hvGvvXT94ctC5CdAPZRKzH8Sfyqs8A&utm_content=2&utm_source=hs_email


mercredi 5 mai à 11h00, séminaire MAbImprove


Sally Ward

professeur d'immunologie moléculaire et directrice de l'immunologie translationnelle au Centre d'immunologie du cancer de la faculté de médecine de l'Université de Southampton

"Targeting subcellular trafficking pathways to  design antibody-based therapeutics for cancer and autoimmunity"

Professors Sally Ward and Raimund Ober have recently relocated their research group from the USA to Southampton. Their interdisciplinary research program is dedicated to the use of protein engineering to develop novel antibody-based therapeutics.

The identification in the Ward/Ober laboratory of the Fc receptor, FcRn, as a regulator of IgG levels and transport has resulted in significant interest in targeting FcRn in biopharma. Extensive analyses of FcRn behaviour, including subcellular trafficking studies, have led to collaborations with biopharma to develop several therapeutics that are based on modulating the interactions of IgG with FcRn. For example, one such therapeutic (Efgartigimod) that inhibits FcRn activity has been developed in collaboration with Argenx, and has recently been successfully used in phase 3 trials to treat antibody-mediated autoimmune diseases.


"The presentation will cover how a combination of antibody engineering, fluorescence microscopy and mouse disease models have been used to inform the design of therapeutics to modulate the dynamic behavior of antibodies for the treatment of autoimmunity. In particular, the targeting of the MHC Class I-related receptor, FcRn, that recycles and transports IgG to maintain IgG homeostasis will be discussed. The generation of engineered antibody-drug conjugates that are designed to deliver their cytotoxic payload more efficiently to tumor cells will also be presented"


Mercredi 19 Mai à 11h, Séminaire MAbImprove


Julie Bonnereau

PhD student – INSERM U1160, Intestinal Immunity in Inflammation and Cancer - Hôpital Saint Louis, Paris 

« Targeting the CD39/CD73 adenosinergic pathway in human colorectal cancer increased T cell infiltration and tumor destruction in an autologous coculture model »

« The 3IC team works on the intestinal immunity in inflammation and cancer, and more specifically on T cells. The intestine presents a particular immune system, constantly stimulated by exogenous antigens from food, commensal microbiota or pathogens. Specific regulations balance the immune response between tolerance of microbiota and food antigens, and protection against pathogens. This immune homeostasis is crucial and its perturbation are involved in several pathologies. Upon epithelial stress and continuous inflammation, an abnormal proinflammatory immune response can induce autoimmune reactions and chronic inflammation diseases, whereas an excessive tolerant phenotype established an immunosuppressive microenvironment favourable to cancer progression. In this tumor context, an antitumor T cell response is clearly engaged but the upregulation of immunosuppressive markers, like the immune checkpoints, allow the tumor immune escape. Immunotherapies targeting these markers, anti-PD-1 and anti-CTLA-4, were developed but presented a weak efficacy in colorectal cancer (CRC).  New therapeutic strategies are necessary. In this project, we studied the antitumor T cell response involved in human CRC. Based on a prospective cohort, our objectives were to better characterize this response to find new potential target for immunotherapy and test their efficacy in our innovative autologous coculture model. We focused on several different pathways including CD39 and CD73. »

Contact IRCM : Laurent GROS


Vendredi 19 Février, 14h


Adrian Baumann

Nanolive, Genève, Suisse

“Label-free 3D holotomographic live cell imaging at high resolution”

Contact IRCM : Alexandre Djiane


Vendredi 12 Février 14H, séminaire IRCM


Gergely Szakacs

Institute of Cancer Research, Medical University of Vienna, Austria

“Targeting efflux transporters in multidrug resistant cancer: an unfinished business”

"Clinical evidence shows that, following initial response to treatment, drug-resistant cancer cells frequently evolve, and eventually most tumors become resistant to all available therapies. The most straightforward cause of therapy resistance is linked to cellular alterations that prevent drugs to act on their target. Upregulation of cell membrane efflux transporters of the ATP-binding cassette (ABC) superfamily leads to simultaneous resistance against structurally and functionally unrelated chemotherapeutic agents. In particular, P-glycoprotein (Pgp, MDR1), the product of ABCB1 gene, was shown to be expressed in several drug resistant malignancies. Based on the correlation of P-glycoprotein expression and function with unfavorable treatment response, it is universally accepted that pharmacological modulation of the MDR phenotype has the potential to significantly increase the efficacy of currently available anticancer therapies. Unfortunately, despite a few early successes, clinical trials conducted with Pgp inhibitors did not fulfill this expectation, failing to confirm clinical benefit. Failure of the trials led to a setback in research, and the shutdown of the pharmaceutical development of transporter inhibitors for the improvement of anticancer therapy. Yet the “transporter problem” has not vanished, as evidenced by new studies supporting the relevance and benefit of research on the role of ABC transporters in clinical drug resistance. Failure of the inhibitors has boosted research in other directions, exploring the possibility to evade efflux, or to exploit the paradoxical sensitivity associated with efflux-based drug resistance mechanisms. In this talk I will describe new approaches to combating multidrug-resistant cancer, including the development of drugs that engage, evade or exploit efflux by P-glycoprotein."

Contact IRCM : Charles Theillet

Le séminaire sera diffusé par Zoom. Un lien sera envoyé par mail quelques jours avant la date
This will be a Zoom webinar. A link will be sent by email in due time.


 


Vendredi 11 Mars 11h, séminaire IRCM


Iros Barozzi
Institute of Cancer Research, Medical University Vienna
Unveiling a Rare Transcriptional State Exposes General Mechanisms of Adaptation to Hormone Therapies”
Contact IRCM: Charles Theillet

“Le séminaire sera diffusé en Webinaire Zoom. Le lien sera diffusé 2 jours avant la date prévue. Il sera transmis en salle de séminaire avec une audience limitée pour respecter la distanciation“


Vendredi 8 janvier, 14h, Séminaire IRCM


Pierre-Olivier Vidalain

Centre International de Recherche en Infectiologie (CIRI), INSERM /CNRS/ENS, Lyon


Glycolytic enzymes and the pyrimidine biosynthesis pathway: two examples of functional interactions between metabolism and innate immunity 

 

Le séminaire aura lieu dans la salle de séminaire avec une audience limitée pour respecter la distanciation et sera aussi diffusé en Webinaire Zoom. Le lien sera diffusé 2 jours avant la date prévue.

Contact IRCM : Claude Sardet


Mercredi 6 janvier 2021, 11h00 : Séminaire MAbImprove


Dr Youenn JOUAN

Chercheur dans l'équipe 1 du CEPR - réanimateur au sein du service de Médecine Intensive Réanimation à Tours

« Implication des lymphocytes T non conventionnels dans le COVID-19 grave »

« Les formes graves de COVID-19 sont caractérisées par une infection pulmonaire qui évolue fréquemment vers un Syndrome de Détresse Respiratoire Aiguë (SDRA), caractérisé par une dérégulation de la réponse inflammatoire pulmonaire. Les acteurs cellulaires impliqués sont cependant mal connus. Dans ce travail, nous avons exploré l'implication potentielle des lymphocytes T non conventionnels, une population hétérogène de Lymphocytes T (iNKT, LTγδ et MAIT) ayant un rôle important dans la réponse inflammatoire, notamment au niveau des muqueuses. Leur implication chez l'Humain dans les infections respiratoires est très peu documentée, et en cours d'investigation au CEPR. 
Nous avons ainsi analysé la fréquence et le niveau d'activation des LTNC chez 30 patients admis en réanimation pour COVID-19 au CHU, dans le sang et les voies aériennes. Dans le sang, les LTNC présentaient un fort niveau d'activation, et une réduction importante de leur fréquence, phénotype qui persistait au cours de l'hospitalisation. Parallèlement, nous avons pu mettre en évidence la présence de LTNC fortement activés dans les voies aériennes des patients, suggérant leur implication dans l'inflammation locale. De façon intéressante, enfin, le niveau d'activation des LTNC à l'admission en réanimation était associé à une meilleure évolution clinique des patients.
Ce travail a démontré -pour la première fois- l'existence de fortes modifications phénotypiques et fonctionnelles des LTNC dans le COVID-19 grave, justifiant la poursuite des explorations de ces populations dans le cadre du SDRA et du COVID-19 ».


 


Jeudi 17 décembre 11H (Heure de Paris) ou 18h (Kyoto time), Webinaire IRCM


Takahiro Ito

Kyoto Univ, Japan

“Metabolic regulation of cell fates in cancer”

In human cancer, malignant cells reprogram and rewire cellular metabolic networks for robust growth and maintenance and adaptation to their microenvironment. Such altered metabolism often leads to dependency on specific nutrients, and therefore, targeting cancer-specific metabolism would be an effective therapeutic strategy. To achieve the long-term goal, it is essential to identify metabolic vulnerabilities in human malignancy, and I would like to share our recent findings on the roles of the branched-chain amino acid (BCAA) metabolism in myeloid leukemia.

Contact : Andrei Turtoi at Inserm


Jeudi 26 novembre 14H, séminaire IRCM Reporté à une date ultérieure


Gergely Szakacs

Institute of Cancer Research, Medical University of Vienna, Austria

“Targeting efflux transporters in multidrug resistant cancer: an unfinished business”

Clinical evidence shows that, following initial response to treatment, drug-resistant cancer cells frequently evolve, and eventually most tumors become resistant to all available therapies. The most straightforward cause of therapy resistance is linked to cellular alterations that prevent drugs to act on their target. Upregulation of cell membrane efflux transporters of the ATP-binding cassette (ABC) superfamily leads to simultaneous resistance against structurally and functionally unrelated chemotherapeutic agents. In particular, P-glycoprotein (Pgp, MDR1), the product of ABCB1 gene, was shown to be expressed in several drug resistant malignancies. Based on the correlation of P-glycoprotein expression and function with unfavorable treatment response, it is universally accepted that pharmacological modulation of the MDR phenotype has the potential to significantly increase the efficacy of currently available anticancer therapies. Unfortunately, despite a few early successes, clinical trials conducted with Pgp inhibitors did not fulfill this expectation, failing to confirm clinical benefit. Failure of the trials led to a setback in research, and the shutdown of the pharmaceutical development of transporter inhibitors for the improvement of anticancer therapy. Yet the “transporter problem” has not vanished, as evidenced by new studies supporting the relevance and benefit of research on the role of ABC transporters in clinical drug resistance. Failure of the inhibitors has boosted research in other directions, exploring the possibility to evade efflux, or to exploit the paradoxical sensitivity associated with efflux-based drug resistance mechanisms. In this talk I will describe new approaches to combating multidrug-resistant cancer, including the development of drugs that engage, evade or exploit efflux by P-glycoprotein.

Contact : Charles Theillet at inserm


Mercredi 21 octobre à 14h, sÉminaire ircm


Silvia Fre

Institut Curie, Paris

“Cell heterogeneity in colon cancer: how do cells communicate within a tumor?"

Contact : Julie Pannequin (IGF)


Vendredi 20 novembre à 11h, sÉminaire ircm


Nathalie Mazure

Centre Méditerranéen de Médecine Moléculaire (C3M), Université Nice Sophia Antipolis

“Identification of a new aggressive axis driven by ciliogenesis and absence of VDAC1-ΔC in clear cell Renal Cell Carcinoma patients"

Contact IRCM : Cathy Tessier



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