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Cookies are a set of data stored on a user’s device when the user browses a web site. The data is in a file containing an ID number, the name of the server which deposited it and, in some cases, an expiry date. We use cookies to record information about your visit, language of preference, and other parameters on the site in order to optimise your next visit and make the site even more useful to you.

To improve your experience, we use cookies to store certain browsing information and provide secure navigation, and to collect statistics with a view to improve the site’s features. For a complete list of the cookies we use, download “Ghostery”, a free plug-in for browsers which can detect, and, in some cases, block cookies.

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You can also visit the CNIL web site for instructions on how to configure your browser to manage cookie storage on your device.

In the case of third-party advertising cookies, you can also visit the following site:, offered by digital advertising professionals within the European Digital Advertising Alliance (EDAA). From the site, you can deny or accept the cookies used by advertising professionals who are members.

It is also possible to block certain third-party cookies directly via publishers:

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The following types of cookies may be used on our websites:

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These cookies are needed to ensure the proper functioning of the site and cannot be disabled. They help ensure a secure connection and the basic availability of our website.

These cookies allow us to analyse site use in order to measure and optimise performance. They allow us to store your sign-in information and display the different components of our website in a more coherent way.

These cookies are used by advertising agencies such as Google and by social media sites such as LinkedIn and Facebook. Among other things, they allow pages to be shared on social media, the posting of comments, and the publication (on our site or elsewhere) of ads that reflect your centres of interest.

Our EZPublish content management system (CMS) uses CAS and PHP session cookies and the New Relic cookie for monitoring purposes (IP, response times).

These cookies are deleted at the end of the browsing session (when you log off or close your browser window)

Our EZPublish content management system (CMS) uses the XiTi cookie to measure traffic. Our service provider is AT Internet. This company stores data (IPs, date and time of access, length of the visit and pages viewed) for six months.

Our EZPublish content management system (CMS) does not use this type of cookie.

For more information about the cookies we use, contact INRA’s Data Protection Officer by email at or by post at:

24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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Eric Guédon - jeudi 23 juin 2022 10h30

jeudi 23 juin 2022 10h30 - Micalis seminars

Eric Guédon - jeudi 23 juin 2022 10h30
Introduction to Extracellular Vesicles

Introduction to Extracellular Vesicles

 Eric Guédon

INRAE Rennes

Cells in all domains of life (archaea, bacteria, eukaryotes) secrete extracellular vesicles (EVs) into environment and surrounding biofluids. These nanosized membrane vesicles transport biologically active molecules i.e. proteins, lipids, metabolites, and nucleic acids from donor cells to distant recipient cells and act as mediators in cell-to-cell communication by vesicle-mediated direct activation of the target cells or by transferring functional vesicular cargos to the recipient cells. In this way, EVs contributes to health, nutrition and disease. Eukaryotic EVs participate in the regulation of a wide range of physiological (e.g. immune surveillance, tissue repair, blood coagulation) and pathological processes (e.g. induction of local and/or systemic inflammation, proliferation and facilitate tumour metastasis). Prokaryotic EVs play also several functions depending on the bacterial species/strains in pathogenesis, microbiota homeostasis, bacterial survival, gene transfer and host cell modulation. The field of EVs research is quickly growing notably due to their important function in numerous biological processes. In addition to the understanding of their role in health and disease, this field of scientific research have great potential for innovation in medical and biotech sector. An overview of the features, functionalities and potential applications of EVs with an emphasis on bacterial EVs will be provided here.

Jeudi 23 juin 2022 10h30

Auditorium 442

invitée par Françoise Rul