Le programme de ce WEB-JST (Flyer téléchargeable ici) comprend quatre présentations orales (20’ + 10’ de questions) en microscopies photonique et électronique, en traitement d’image et en imagerie chimique ainsi que L’AG du réseau présentant les actions menées durant l’année écoulée.

COMULIS is an EU-funded COST Action that aims at fueling urgently needed collaborations in the field of correlated multimodal imaging (CMI), promoting and disseminating its benefits through showcase pipelines, and paving the way for its technological advancement and implementation as a versatile tool in biological and preclinical research. CMI combines two or more modalities to gather holistic information about the same specimen. It creates a composite view of the sample with multidimensional information about its macro, meso- and microscopic structure, dynamics, function and chemical composition. Since no single technique can reveal all these details, CMI is the only way to understand biomedical processes mechanistically.

In order to encourage correlated multi-modal imaging projects, COMULIS Short Term Scientific Missions (STSMs) provides travel grants to individuals wishing to explore new imaging techniques. The grants are presented in the form of a lump sum of up to 3,500 Euros (depending on the duration of the mission), to cover travel and subsistence. COMULIS COST accepts applications on a continuous basis from Early Career Investigators and Experienced Imaging Scientists who would like to travel internationally to collaborate with a Host facility on a Correlated Multi-modal imaging project. There is a rapid review process and around 10 grants are awarded every year.

In addition, COMULIS STSM can provide funding for core facility staff to learn a new imaging  technique or work with new software tools to bring the expertise back to their own facility.

Applications can be submitted any time & will be reviewed at the end of each month.

More info and application procedure: https://www.comulis.eu/stsm-open-call

The image depicts a spheroid of human stem cells (green) and its actin cytoskeleton (purple), produced by Philippe Cohen during its PhD at Treefrog. This nice picture serves as an illustration for an article covering the use of stem cells for regenerative medicine.
Acquisition was made by Philippe Cohen on a scanning confocal microscope and 3D rendering was done by Jérémie Teillon using Agave software.
Agave is a free 3D visualization software, using light path-trace light rendering.
 

The Bordeaux Imaging Center team offers training and support on 3D commercial softwares such as Imaris and Arivis as well as other freeware such as Agave. Don’t hesitate to contact them (bic@u-bordeaux.fr) if you are interested  in 3D rendering and visualization of your microscopy data!

Agave software:
https://www.allencell.org/software-and-code.html
https://www.allencell.org/pathtrace-rendering.html
Article (in French):
https://www.science-et-vie.com/corps-et-sante/regenerer-le-cerveau-des-cellules-souches-retablissent-les-liaisons-neuronales-p-58266#dossier-58457

During embryonic development, cells take on increasingly precise roles in the body as they divide. Be they skin cells, muscle cells or neurons, the different cell types that make up the embryo emerge gradually from a very fine orchestration of their positions and identities, coordinated by the signals they exchange with each other. Like us, the cells need to “talk” to each other to make decisions.

Screaming or whispering: the embryonic cell dilemma

In vertebrate embryos, cells have a very dynamic behaviour. They move around, exchange their neighbours or migrate over long distances. The signals they exchange therefore need to have a long range, which could be characterized as “shouting”. The study of the embryonic development of a sea squirt, a small marine animal with optically transparent embryos, has enabled scientists from several teams at CNRS and INRIA in France, in collaboration with a team from the European Molecular Biology Laboratory (EMBL, Germany), to capture and describe in detail a more discreet mode of cell communication.

The scientists recorded the development of live embryos every two minutes with a new-generation « light-sheet » microscope. They then created software to automatically detect each cell and analyze its position, shape and neighbours up to an advanced stage of development. This work revealed an unusually reproducible mode of development, in which the same cell can be found in the same position across all embryos and where cells move very little in relation to each other. The authors of the study then annotated the films thus made with information on the cell type and the molecular signals emitted by each cell. Using mathematical modelling to integrate the quantitative description of the embryonic geometry with these annotations, their work suggest that cells communicate with very short-range signals. Moreover, the interpretation of these signals is modulated by the area of the contacts between cells. Unlike vertebrates, the cells of ascidian embryos thus have a static and fixed behaviour and the range of their “whispered” signals is very small.

Top: embryonic development of an ascidian from egg to tadpole. The part framed in white is the part of embryogenesis that we have imaged and then segmented (below, segmented cells coloured according to their cell fate). The lower part of the figure illustrates that the light green cells “whisper” instructions to their immediate neighbours by short-range signals.

This study indicates that the dynamics of cell movement varies greatly between animals and that these different modalities could be strongly related to the range of signals that the cells exchange with each other. By extending the repertoire of cellular communication mechanisms, this work opens new perspectives on the understanding of self-organization strategies of living forms.

Article: L. Guignard*, U.-M. Fiuza*, B. Leggio, J. Laussu, E. Faure, G. Michelin, K. Biasuz, L. Hufnagel, G. Malandain, C. Godin#, P. Lemaire# (2020) Contact-area dependent cell communications and the morphological invariance of ascidian embryogenesis (Science, July 10 2020 issue, https://science.sciencemag.org/content/369/6500/eaar5663)

Registration is now open for the Virtual Early Career European Microscopy Congress 2020!

Following the cancellation of emc2020, this virtual meeting will provide an opportunity for Early Career Scientists who would have attended and presented at the congress, to still present their work at an International Meeting this year. 

Registration Fees
The registration fees can be found below.

 Price
Early Career
You are a student or an Early-Career Researcher (less than 3 years since the completion of your PhD by November 2020).
Thank you to the European Microscopy Society for subsidising to enable free registration for Early Career Researchers.
FREE
EMS Member
You are a member of the European Microscopy Society. Member fees are applicable only if your membership status is active at the time of registration. Your membership status will be verified, so you must be sure that your annual subscription is current.
€60
Non-Member€75

To purchase your tickets, please visit www.emc2020.eu

For help and queries
If you have any questions regarding this event, please do email katejermey@rms.org.uk or visit the website www.emc2020.eu for further information.

2 recent publications using the laser irradiation and photoablation systems available on the MRic facility from the Bretagne-Loire Node are presented here:

  • Esmangart de Bournonville and Le Borgne (IGDR) characterized the assembly and interactions of tricellular junction components in Drosophila epithelial cytokinesis using laser ablation on a SP5 confocal. Their article entitled “Interplay between Anakonda, Gliotactin, and M6 for Tricellular Junction Assembly and Anchoring of Septate Junctions in Drosophila Epithelium” was published last august in Current Biology (https://doi.org/10.1016/j.cub.2020.07.090).
  • Rebecca Smith, post-doc in Sébastien Huet’s team (IGDR) in collaboration with Szilvia Juhász from Gyula Timinszky’s team (Szeged, Hungary) used laser irradiation to study chromatin remodeling following DNA damage. Their paper entitled “The chromatin remodeler ALC1 underlies resistance to PARP inhibitor treatment” has just been accepted in Science Advances.

During this year 2020, the MicroPICell facility from the Bretagne Loire Node acquired several imaging systems, some of which offer access to new technologies on the Nantes health research site:

  • a complete Zeiss Lighsheet 7 light sheet microscope associated to an X-Clarity clearing system and an Arivis Vision 4D Offline station,
  • a motorized Nanolive holotomographic microscope,
  • a high-end Nikon confocal microscope (resonant, spectral, FLIM, large field of view),
  • an Akoya CODEX system of multiplex fluorescent tissue labeling.
Holography offers a unique means to measure cells in their native environment: label-free, non-invasive, manipulation-free, and interference-free.

Moreover, the MicroPICell facility, in collaboration with the training organization of the CNRS, is organizing in March 2021 a training on histology: from sample preparation to markers validation by image analysis. This training (lectures, workshops) will take place over 4 days between 03/22/2021 and 04/24/2021.

Link: https://cnrsformation.cnrs.fr/stage-21290-Histologie–de-la-preparation-dechantillons-a-la-validation-des-marquages-par-analyse-dimage.html?stage=21290&axe=138

The pathways leading from cells to embryo are highly complex. They involve among others steps of cell determination, patterning, cellular and organ morphogenesis, processes that are tightly controlled and coordinated in space and time.

However, during the last decade, this field has benefited from major findings in the understanding of epigenetics, gene regulatory networks, mechanobiology, mechanisms of cell specification among others, and also from technical advances such as single cell omics.

This symposium will address state-of-the-art research in this field, both in animals and plants. It will feature keynote and invited lectures, and selected short talks and posters.

The symposium is organized at the initiative of the Multi-Organization Thematic Institute Cell Biology, Development & Evolution (ITMO – BCDE), jointly with the French Society of Developmental Biology (SFBD) and with the French Society of Cell Biology (SBCF). See the composition of the Scientific Organization Committee

The meeting will take place as scheduled on November 16 – 17, 2020. Given the sanitary situation, it will be organized using a mixed format, partly online and partly on site, on the Institut Jacques Monod campus, located in the center of Paris.  Many short talks will be selected by the organizers (applicants will be informed around October 15th). The call for abstracts is now open. Download the submission form on the registration page. Abstract submission by October 1st, 2020.

See the invited faculty

Download the poster of the meeting.

Free registration before October 31st HERE

The France BioImaging Image Contest is back for its 3rd edition!

This image contest is open to all within the imaging community: core facility staff and users, R&D labs teams and co-workers, students… Submit your best microscopy images for a chance to showcase your skills, research and creativity to the French bioimaging community and beyond, allowing people to see the visual appeal of the life sciences. Images from the contest will be featured on France BioImaging communication tools, online and in print.

France BioImaging and all the French community aims to develop and promote innovative imaging technologies and methods. But microscopy images can also take an artistic, creative look and make the invisible world beautiful.

We are all eager to see your work !

Prizes

1 to 3 images will be awarded depending on the quantity and quality of the entries submitted. France BioImaging will cover the registration fees for one 2022 microscopy related event of the winners’ choice (FOM, ELMI, EMC, COMULIS conference, etc.).

Important: Only French or foreign participants affiliated to a French institution can enter the contest. Foreign participants non-affiliated to a French institution can submit images and will be featured in the gallery, but will not be evaluated as part of the contest.

Submission deadline: Friday, October 15th, 2021, 23h59 UTC+2. 

Click here to consult the terms and conditions of the contest. When you are ready, submit your entry by filling the form below. You can check out last editions’s entries for inspiration. One participant can submit several entries (up to 3).


This form is currently closed for submissions.

Congratulations to Emmanuel Beaurepaire, CNRS Research Director from the Laboratory for Optics and Biosciences CNRS-INSERM-Polytechnique, and member of France BioImaging Ile de France Sud Node, who has been awarded the 2020 Life Sciences prize from the European Microscopy Society for his outstanding achievements in: 

the fields of developmental biology and neurobiology by development of novel, cutting-edge light microscopy techniques. Notably, he pushed forward methods of deep-tissue imaging, with important application potential for insights into developing small model systems and for brain imaging, using advanced techniques such as multicolor two-photon excitation, third-harmonic generation imaging, adaptive optics, pulse shaping, etc. 

On August 27th, 2020, Emmanuel presented his work during the award ceremony during the EMS General Assembly, which has been held by visioconference this year.    

The Global BioImaging Exchange of Experience workshop series continues with an online event on “Pre-publication image data: management and processing” which will be held on September 8th and 9th, 2020!

Global BioImaging and ABiS will host a two-half days virtual meeting, featuring high-level speakers from around the world and introducing the topic to the global community. A second meeting is planned, where GBI hope to be able to gather the community in person in Okazaki in spring 2021 and continue fruitful discussions and the scientific networking of our community.

As partner of the Global BioImaging initiative, France BioImaging encourage the FBI community to participate in this 2 half-days virtual meeting and share inputs on solutions related to the management of image data before they reach the publication stage!

Registrations are now open: please follow this link and register!

More information on the event can be found here: EoE V webpage.