1. Multiomics dissection of human RAG deficiency reveals distinctive patterns of immune dysregulation but a common inflammatory signature.
- Author
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Bosticardo M, Dobbs K, Delmonte OM, Martins AJ, Pala F, Kawai T, Kenney H, Magro G, Rosen LB, Yamazaki Y, Yu HH, Calzoni E, Lee YN, Liu C, Stoddard J, Niemela J, Fink D, Castagnoli R, Ramba M, Cheng A, Riley D, Oikonomou V, Shaw E, Belaid B, Keles S, Al-Herz W, Cancrini C, Cifaldi C, Baris S, Sharapova S, Schuetz C, Gennery AR, Freeman AF, Somech R, Choo S, Giliani SC, Güngör T, Drozdov D, Meyts I, Moshous D, Neven B, Abraham RS, El-Marsafy A, Kanariou M, King A, Licciardi F, Cruz-Muñoz ME, Palma P, Poli C, Adeli M, Algeri M, Alroqi FJ, Bastard P, Bergerson JRE, Booth C, Brett A, Burns SO, Butte MJ, Padem N, de la Morena M, Dbaibo G, de Ravin SS, Dimitrova D, Djidjik R, Dorna MB, Dutmer CM, Elfeky R, Facchetti F, Fuleihan RL, Geha RS, Gonzalez-Granado LI, Haljasmägi L, Ale H, Hayward A, Hifanova AM, Ip W, Kaplan B, Kapoor N, Karakoc-Aydiner E, Kärner J, Keller MD, Dávila Saldaña BJ, Kiykim A, Kuijpers TW, Kuznetsova EE, Latysheva EA, Leiding JW, Locatelli F, Alva-Lozada G, McCusker C, Celmeli F, Morsheimer M, Ozen A, Parvaneh N, Pasic S, Plebani A, Preece K, Prockop S, Sakovich IS, Starkova EE, Torgerson T, Verbsky J, Walter JE, Ward B, Wisner EL, Draper D, Myint-Hpu K, Truong PM, Lionakis MS, Similuk MB, Walkiewicz MA, Klion A, Holland SM, Oguz C, Bogunovic D, Kisand K, Su HC, Tsang JS, Kuhns D, Villa A, Rosenzweig SD, Pittaluga S, and Notarangelo LD
- Subjects
- Humans, Homeodomain Proteins genetics, Homeodomain Proteins immunology, Male, Female, DNA-Binding Proteins genetics, DNA-Binding Proteins immunology, DNA-Binding Proteins deficiency, B-Lymphocytes immunology, Mutation, Child, Preschool, Phenotype, Multiomics, Nuclear Proteins, Inflammation immunology
- Abstract
Human recombination-activating gene (RAG) deficiency can manifest with distinct clinical and immunological phenotypes. By applying a multiomics approach to a large group of RAG -mutated patients, we aimed at characterizing the immunopathology associated with each phenotype. Although defective T and B cell development is common to all phenotypes, patients with hypomorphic RAG variants can generate T and B cells with signatures of immune dysregulation and produce autoantibodies to a broad range of self-antigens, including type I interferons. T helper 2 (T
H 2) cell skewing and a prominent inflammatory signature characterize Omenn syndrome, whereas more hypomorphic forms of RAG deficiency are associated with a type 1 immune profile both in blood and tissues. We used cellular indexing of transcriptomes and epitopes by sequencing (CITE-seq) analysis to define the cell lineage-specific contribution to the immunopathology of the distinct RAG phenotypes. These insights may help improve the diagnosis and clinical management of the various forms of the disease.- Published
- 2025
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