Heterotrimers composed of B cell CLL/lymphoma 10 (BCL10), mucosa-associated lymphoid tissue lymphoma translocation protein 1 (MALT1), and caspase recruitment domain–containing (CARD) family adaptors play a role in NF-κB activation and have been shown to be involved in both the innate and the adaptive arms of immunity in murine models. Moreover, individuals with inherited defects of MALT1, CARD9, and CARD11 present with immunological and clinical phenotypes. Here, we characterized a case of autosomal-recessive, complete BCL10 deficiency in a child with a broad immunodeficiency, including defects of both hematopoietic and nonhematopoietic immunity. The patient died at 3 years of age and was homozygous for a loss-of-expression, loss-of-function
Juan Manuel Torres, Rubén Martinez-Barricarte, Sonia García-Gómez, Marina S. Mazariegos, Yuval Itan, Bertrand Boisson, Rita Álvarez, Anaïs Jiménez-Reinoso, Lucia del Pino, Rebeca Rodríguez-Pena, Antonio Ferreira, Enrique Hernández-Jiménez, Victor Toledano, Carolina Cubillos-Zapata, Mariana Díaz-Almirón, Eduardo López-Collazo, José L. Unzueta-Roch, Silvia Sánchez-Ramón, Jose R. Regueiro, Eduardo López-Granados, Jean-Laurent Casanova, Rebeca Pérez de Diego