Immune Repertoire Analysis
with Vidjil

Rennes (France) + online, 12-13 October 2026

V(D)J recombinations in lymphocytes are essential for immunological diversity. They are also useful markers of pathologies, and in leukemia, are used to quantify the minimal residual disease during patient follow-up. High-throughput sequencing (NGS/HTS) now enables the deep sequencing of lymphoid populations. With dedicated Rep-Seq bioinformatics methods and software, clinicians and researchers can now qualify and sometimes quantify the heterogeneity of these lymphoid populations.

This seventh workshop is intended for users and developers of Vidjil, to share experience, protocols and results, to raise questions and decide development priorities, and possibly to set up new collaborations between biologists and bioinformaticians. The workshop includes hematology, immunology and bioinformatics talks from an invited speaker and from the users and developers of Vidjil, and practical hands-on sessions on participant data. The registration is free but mandatory, and a remote participation to some of the sessions is possible.
The Vidjil Workshop usually takes place every 18 months. The previous workshops (2016, 2017, 2019, 2020, 2022), 2024) gathered at each edition between 30 and 40 scientists from 5 to 7 countries.
The 2024 edition have gathered 40 people from Belgium, Brazil, France, Italy, Lithuania, Norway, Sweden, Switzerland, UK, and USA.

▶️ remote Hybrid participation. The 2026 edition will be in Rennes. However, it is also possible to follow remotely some part of the workshop.

Program

The workshop includes an invited talk, hematology and bioinformatics talks from the users and developers of Vidjil, and practical hands-on sessions on participant data. We expect that one participant from each group will do a short presentation of his research or clinical work, and, if applicable, of the results obtained with Vidjil or with other software.

For the practical sessions, the participants are invited to bring a laptop and some of their NGS data (fasta / fastq / fastq.gz files). The data can also be uploaded into user accounts on app.vidjil.org before the workshop. We also provide public test data for the people who do not currently have their own NGS Rep-Seq data.

Monday 12 October

9:00 – 9:45 Registration, coffee
9:45 – 10:00 Introduction
10:00 – 11:00 Keynote talk: To be announced ▶️ remote
11:15 – 12:15 Talks: Algorithmics and bioinformatics: a tour of the Vidjil platform ▶️ remote
  • Introduction to the Vidjil platform
  • New and advanced features
12:30 – 14:00 Lunch break
14:00 – 15:30 Talks: Immunology and Hematology ▶️ remote
15:30 – 16:30 Startup creation & VidjilNet future
  • Startup objectives and roadmap
  • CE-IVD certification
  • Future of the VidjilNet consortium
16:30 – 17:00 Coffee Break
17:00 – 17:30 2026 Survey results
17:30 – 18:30 Exceptional VidjilNet general assembly (reserved to consortium members)
20:00 Dinner (to be announced),

Tuesday 13 October

09:00 – 10:00 Round table
  • Discussion on most wanted features, development priorities
  • Meeting of the Scientific and Technic Committee
10:00 – 10:15 Talks: Bioinformatics software ▶️ remote
  • Sami Amara, Processing VDJ recombinations still faster
10:15 – 10:45 Coffee Break
10:45 – 12:30 Practical sessions
  • Usage of the Vidjil Web platform, analysis of participant and/or public data
    • (both tutorial and advanced usage)
12:30 – 13:30 Lunch break
13:30 – 15:00 Imagine the Future (in small group)
  • Reflexion hackathon on most wanted features and new tools
  • Meeting of the Scientific and Technic Committee
15:00 – 15:30 Conclusion

Registration

The workshop is sponsored by the VidjilNet consortium at Inria. There is no registration fee but it is mandatory to register. To register, please copy, paste and fill the following lines into an email to Florian, Guillaumme, Lou, Mathieu and Mikaël 

================================================
First name: 
Last name: 
Function: 
Laboratory/hospital: 
City: 
Country:

I will be present in Rennes:
    [ ] Both days
    [ ] Monday 12 October 2026
    [ ] Tuesday 13 October 2026

[ ] I will attend the workshop remotely

My usage of Vidjil:
    [ ] I use Vidjil at least once a month
    [ ] I use Vidjil occasionally
    [ ] I am a new user or I don't use Vidjil
================================================

The two lunches (12 and 13 October) and the dinner of the evening of the 12 October are free for registered participants.

Rennes

Dmitry Djcuce (source: Wikimedia Commons)

Practical information in Rennes

The workshop takes place at Université de Rennes on the Beaulieu campus, in the PNRB building. To go the the PNRB, take the C4 or C6 bus and stop at Les Préales.

Organizers

The workshop is organized by Sami Amara, Mathieu Giraud, Guillaume Noël, Mikaël Salson, Lou Scotto di Covella and Florian Thonier, from CRIStAL, Inria and the VidjilNet consortium.