The immunopathological landscape of human pre-TCRa deficiency: From rare to common variants

Marie Materna, Ottavia M. Delmonte, Marita Bosticardo, Mana Momenilandi, Peyton E. Conrey, Bénédicte Charmeteau De Muylder, Clotilde Bravetti, Rebecca Bellworthy, Axel Cederholm, Frederik Staels, Christian A. Ganoza, Samuel Darko, Samir Sayed, Corentin Le Floc’h, Masato Ogishi, Darawan Rinchai, Andrea Guenoun, Alexandre Bolze, Taushif Khan, Adrian GervaisRenate Krüger, Mirjam Völler, Boaz Palterer, Mahnaz Sadeghi-Shabestari, Anne Langlois de Septenville, Chaim A. Schramm, Sanjana Shah, John J. Tello-Cajiao, Francesca Pala, Kayla Amini, Jose S. Campos, Noemia Santana Lima, Daniel Eriksson, Romain Lévy, Yoann Seeleuthner, Soma Jyonouchi, Manar Ata, Fatima Al Ali, Caroline Deswarte, Anaïs Pereira, Jérôme Mégret, Tom Le Voyer, Paul Bastard, Laureline Berteloot, Michaël Dussiot, Natasha Vladikine, Paula P. Cardenas, Emmanuelle Jouanguy, Mashael Alqahtani, Amal Hasan, Thangavel Alphonse Thanaraj, Jérémie Rosain, Fahd Al Qureshah, Vito Sabato, Marie Alexandra Alyanakian, Marianne Leruez-Ville, Flore Rozenberg, Elie Haddad, Jose R. Regueiro, Maria L. Toribio, Judith R. Kelsen, Mansoor Salehi, Shahram Nasiri, Mehdi Torabizadeh, Hassan Rokni-Zadeh, Majid Changi-Ashtiani, Nasimeh Vatandoost, Hossein Moravej, Seyed Mohammad Akrami, Mohsen Mazloomrezaei, Aurélie Cobat, Isabelle Meyts, Etsushi Toyofuku, Madoka Nishimura, Kunihiko Moriya, Tomoyuki Mizukami, Kohsuke Imai, Laurent Abel, Bernard Malissen, Fahd Al-Mulla, Fowzan Sami Alkuraya, Nima Parvaneh, Horst von Bernuth, Christian Beetz, Frédéric Davi, Daniel C. Douek, Rémi Cheynier, David Langlais, Nils Landegren, Nico Marr, Tomohiro Morio, Mohammad Shahrooei, Rik Schrijvers, Sarah E. Henrickson, Hervé Luche, Luigi D. Notarangelo, Jean Laurent Casanova, Vivien Béziat

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

We describe humans with rare biallelic loss-of-function PTCRA variants impairing pre-a T cell receptor (pre-TCRa) expression. Low circulating naive a|! T cell counts at birth persisted over time, with normal memory a|>, and high T5 T cell counts. Their TCRa repertoire was biased, which suggests that noncanonical thymic differentiation pathways can rescue aft T cell development. Only a minority of these individuals were sick, with infection, lymphoproliferation, and/or autoimmunity. We also report that 1 in 4000 individuals from the Middle East and South Asia are homozygous for a common hypomorphic PTCRA variant. They had normal circulating naive aft T cell counts but high yS T cell counts. Although residual pre-TCRa expression drove the differentiation of more ap T cells, autoimmune conditions were more frequent in these patients compared with the general population.

Original languageEnglish
Article numberadh4059
JournalScience
Volume383
Issue number6686
DOIs
StatePublished - 1 Mar 2024

Funding Agency

  • Kuwait Foundation for the Advancement of Sciences

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