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DOI 10.1038/s41590-025-02381-7

Медицинская библиотека · Nature immunology · 2026

Somatic deficiency of the human E3 ubiquitin ligase CBL in leukocytes impairs B cell but not T cell development and function.

Vatovec Taja, Neehus Anna-Lena, Jackson Katherine J L, Avery Danielle T, Bagarić Ivan, Erazo Lucia, Arango-Franco Carlos A, Ogishi Masato, Ahmed Syed F, Cederholm Axel, Russell Amanda J, Della Mina Erika, Al-Rifai Dena, Bull Rowena, Buetow Lori, Sobrino Steicy, Zhang Allison, Wahlster Lara, Michelet Marine, Parvaneh Nima, Peel Jessica, Barzaghi Federica, Leardini Davide, Philippot Quentin, Saettini Francesco, Dutrieux Jacques, de Muylder Benedicte, Vendemini Francesca, Baccelli Francesco, Catala Albert, Gambineri Eleonora, Veltroni Marinella, Pandiarajan Vignesh, Aguilar Yurena, Haerynck Filomeen, Elliott Michael, Turville Stuart, Brillot Fabienne, Khan Taushif, Consonni Filippo, Berteloot Laureline, Sewell William A, Rao Geetha, Largeaud Laetitia, Conti Francesca, Roullion Cecile, Masson Cécile, Pegoraro Francesco, Ye Tianyi, Joubran Samantha, Villalpando Emily, Bessot Boris, Seeleuthner Yoann, Le Voyer Tom, Rosain Jérémie, Li Hailun, Janda Zarah, Muratore Edoardo, Soudée Camille, Delabesse Eric, Goulvestre Claire, Shahrooei Mohammad, Puel Anne, André Isabelle, Bole-Feysot Christine, Abel Laurent, Erlacher Miriam, Béziat Vivien, Lagresle-Peyrou Chantal, Cheynier Remi, Six Emmanuelle, Marr Nico, Pasquet Marlène, Alsina Laia, Goodnow Christopher C, Landegren Nils, Aiuti Alessandro, Zhang Peng, Masetti Riccardo, Huang Danny T, Ma Cindy S, Casanova Jean-Laurent, Sankaran Vijay G, Bustamante Jacinta, Tangye Stuart G, Bohlen Jonathan

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Аннотация

The E3 ubiquitin ligase Casitas B-lineage lymphoma (CBL) promotes positive selection and antigen responses in mouse T lymphocytes by ubiquitinating ZAP70. Conversely, mouse CBL and CBL-B mutually redundantly regulate SYK ubiquitination and B cell receptor signaling. Here we studied individuals with somatically homozygous CBL loss-of-function variants in leukocytes. Human CBL is largely redundant for the development and function of human T cells. Conversely, B cell development is altered at the immature stage, with a tenfold increase in transitional cells, enhanced survival of autoreactive clones and impaired tolerance manifested by autoantibody production. B cell maturation is intrinsically impaired by reduced apoptosis and dysregulated B cell receptor signaling. CBL deficiency impairs humoral immunity by limiting memory B cell formation and reducing class switching and somatic hypermutation. Consequently, antigen-specific B cell generation and adaptive immune memory are disrupted, predisposing individuals to infection. Human CBL is critical for B cell development and function but redundant for T cell biology.

Для цитирования: Vatovec Taja, Neehus Anna-Lena, Jackson Katherine J L, Avery Danielle T, Bagarić Ivan, Erazo Lucia, Arango-Franco Carlos A, Ogishi Masato, Ahmed Syed F, Cederholm Axel, Russell Amanda J, Della Mina Erika, Al-Rifai Dena, Bull Rowena, Buetow Lori, Sobrino Steicy, Zhang Allison, Wahlster Lara, Michelet Marine, Parvaneh Nima, Peel Jessica, Barzaghi Federica, Leardini Davide, Philippot Quentin, Saettini Francesco, Dutrieux Jacques, de Muylder Benedicte, Vendemini Francesca, Baccelli Francesco, Catala Albert, Gambineri Eleonora, Veltroni Marinella, Pandiarajan Vignesh, Aguilar Yurena, Haerynck Filomeen, Elliott Michael, Turville Stuart, Brillot Fabienne, Khan Taushif, Consonni Filippo, Berteloot Laureline, Sewell William A, Rao Geetha, Largeaud Laetitia, Conti Francesca, Roullion Cecile, Masson Cécile, Pegoraro Francesco, Ye Tianyi, Joubran Samantha, Villalpando Emily, Bessot Boris, Seeleuthner Yoann, Le Voyer Tom, Rosain Jérémie, Li Hailun, Janda Zarah, Muratore Edoardo, Soudée Camille, Delabesse Eric, Goulvestre Claire, Shahrooei Mohammad, Puel Anne, André Isabelle, Bole-Feysot Christine, Abel Laurent, Erlacher Miriam, Béziat Vivien, Lagresle-Peyrou Chantal, Cheynier Remi, Six Emmanuelle, Marr Nico, Pasquet Marlène, Alsina Laia, Goodnow Christopher C, Landegren Nils, Aiuti Alessandro, Zhang Peng, Masetti Riccardo, Huang Danny T, Ma Cindy S, Casanova Jean-Laurent, Sankaran Vijay G, Bustamante Jacinta, Tangye Stuart G, Bohlen Jonathan. Somatic deficiency of the human E3 ubiquitin ligase CBL in leukocytes impairs B cell but not T cell development and function.. Nature immunology. 2026. DOI: 10.1038/s41590-025-02381-7.

Предметные рубрики MeSH

HumansProto-Oncogene Proteins c-cblT-LymphocytesB-LymphocytesSignal TransductionImmunologic MemoryAnimalsCell DifferentiationReceptors, Antigen, B-CellApoptosisMiceAdaptor Proteins, Signal Transducing
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