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Your search keyword '"Blazso P"' showing total 2 results
Start Over Author "Blazso P" Topic homeodomain proteins
2 results on '"Blazso P"'

1. Partial RAG deficiency in humans induces dysregulated peripheral lymphocyte development and humoral tolerance defect with accumulation of T-bet + B cells.

Author

Csomos K, Ujhazi B, Blazso P, Herrera JL, Tipton CM, Kawai T, Gordon S, Ellison M, Wu K, Stowell M, Haynes L, Cruz R, Zakota B, Nguyen J, Altrich M, Geier CB, Sharapova S, Dasso JF, Leiding JW, Smith G, Al-Herz W, de Barros Dorna M, Fadugba O, Fronkova E, Kanderova V, Svaton M, Henrickson SE, Hernandez JD, Kuijpers T, Kandilarova SM, Naumova E, Milota T, Sediva A, Moshous D, Neven B, Saco T, Sargur R, Savic S, Sleasman J, Sunkersett G, Ward BR, Komatsu M, Pittaluga S, Kumanovics A, Butte MJ, Cancro MP, Pillai S, Meffre E, Notarangelo LD, and Walter JE

Subjects
Cell Differentiation, Humans, Immune Tolerance, Lymphocyte Count, B-Lymphocytes, DNA-Binding Proteins deficiency, DNA-Binding Proteins genetics, Homeodomain Proteins genetics, Nuclear Proteins deficiency
Abstract

The recombination-activating genes (RAG) 1 and 2 are indispensable for diversifying the primary B cell receptor repertoire and pruning self-reactive clones via receptor editing in the bone marrow; however, the impact of RAG1/RAG2 on peripheral tolerance is unknown. Partial RAG deficiency (pRD) manifesting with late-onset immune dysregulation represents an 'experiment of nature' to explore this conundrum. By studying B cell development and subset-specific repertoires in pRD, we demonstrate that reduced RAG activity impinges on peripheral tolerance through the generation of a restricted primary B cell repertoire, persistent antigenic stimulation and an inflammatory milieu with elevated B cell-activating factor. This unique environment gradually provokes profound B cell dysregulation with widespread activation, remarkable extrafollicular maturation and persistence, expansion and somatic diversification of self-reactive clones. Through the model of pRD, we reveal a RAG-dependent 'domino effect' that impacts stringency of tolerance and B cell fate in the periphery., (© 2022. The Author(s).)

Published
2022
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2. Partial RAG deficiency in humans induces dysregulated peripheral lymphocyte development and humoral tolerance defect with accumulation of T-bet+ B cells

Author

Csomos, Krisztian, Ujhazi, Boglarka, Blazso, Peter, Herrera, Jose L, Tipton, Christopher M, Kawai, Tomoki, Gordon, Sumai, Ellison, Maryssa, Wu, Kevin, Stowell, Matthew, Haynes, Lauren, Cruz, Rachel, Zakota, Bence, Nguyen, Johnny, Altrich, Michelle, Geier, Christoph B, Sharapova, Svetlana, Dasso, Joseph F, Leiding, Jennifer W, Smith, Grace, Al-Herz, Waleed, de Barros Dorna, Mayra, Fadugba, Olajumoke, Fronkova, Eva, Kanderova, Veronika, Svaton, Michael, Henrickson, Sarah E, Hernandez, Joseph D, Kuijpers, Taco, Kandilarova, Snezhina Mihailova, Naumova, Elizaveta, Milota, Tomas, Sediva, Anna, Moshous, Despina, Neven, Benedicte, Saco, Tara, Sargur, Ravishankar, Savic, Sinisa, Sleasman, John, Sunkersett, Gauri, Ward, Brant R, Komatsu, Masanobu, Pittaluga, Stefania, Kumanovics, Attila, Butte, Manish J, Cancro, Michael P, Pillai, Shiv, Meffre, Eric, Notarangelo, Luigi D, and Walter, Jolan E

Subjects
Biotechnology, Infectious Diseases, 1.1 Normal biological development and functioning, Underpinning research, B-Lymphocytes, Cell Differentiation, DNA-Binding Proteins, Homeodomain Proteins, Humans, Immune Tolerance, Lymphocyte Count, Nuclear Proteins, Immunology
Abstract

The recombination-activating genes (RAG) 1 and 2 are indispensable for diversifying the primary B cell receptor repertoire and pruning self-reactive clones via receptor editing in the bone marrow; however, the impact of RAG1/RAG2 on peripheral tolerance is unknown. Partial RAG deficiency (pRD) manifesting with late-onset immune dysregulation represents an 'experiment of nature' to explore this conundrum. By studying B cell development and subset-specific repertoires in pRD, we demonstrate that reduced RAG activity impinges on peripheral tolerance through the generation of a restricted primary B cell repertoire, persistent antigenic stimulation and an inflammatory milieu with elevated B cell-activating factor. This unique environment gradually provokes profound B cell dysregulation with widespread activation, remarkable extrafollicular maturation and persistence, expansion and somatic diversification of self-reactive clones. Through the model of pRD, we reveal a RAG-dependent 'domino effect' that impacts stringency of tolerance and B cell fate in the periphery.

Published
2022

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