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Clinical Trials

Date: 2017-11-20

Type of information: Publication of results in a medical journal

phase:

Announcement: publication of results in Molecular Therapy — Nucleic Acids

Company: Cellectis (France)

Product: TAL nucleases (TALEN®) targeting PD1

Action mechanism: gene editing technology

Disease:

Therapeutic area: Cancer - Oncology

Country:

Trial details:

Latest news:

  • • On November 20, 2017, Cellectis announced  the publication of a study in Molecular Therapy — Nucleic Acids describing the educated engineering of highly specific and efficient TAL nucleases (TALEN®) targeting PD1, a key T-cell immune checkpoint. In this report, Anne-Sophie Gautron, Ph.D., Alexandre Juillerat, Ph.D., and their collaborators used a strategy developed by Cellectis to control TALEN® targeting based on a proprietary technology leveraging the exclusion capacities of non-conventional RVDs. This approach allows combined disruptions of the desired TRAC and PDCD1 loci by TALEN® while eliminating low frequency off-site processing. By adjusting a few RVDs, they provided a rapid and straightforward redesign of optimal TALEN® combinations for multiplex gene editing. This approach can greatly benefit gene editing for therapeutic applications where high editing efficiencies need to be associated with maximal specificity and safety.
  • (Fine and predictable tuning of TALEN gene editing targeting for improved T-cell adoptive immunotherapy. Anne-Sophie Gautron1,3, Alexandre Juillerat2,3, Valérie Guyot1, Jean-Marie Filhol1, Emilie Dessez1, Aymeric Duclert1, Philippe Duchateau1 and Laurent Poirot. Molecular Therapy - Nucleic Acids - Volume 9, 15 December 2017, Pages 312-321)

Is general: Yes