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1. Myeloid lineage cells evince distinct steady-state level of certain gene groups in dependence on hereditary angioedema severity

Author

Lucie Ballonová, Přemysl Souček, Peter Slanina, Kamila Réblová, Ondřej Zapletal, Marcela Vlková, Roman Hakl, Viktor Bíly, Hana Grombiříková, Eliška Svobodová, Petra Kulíšková, Julie Štíchová, Marta Sobotková, Radana Zachová, Jana Hanzlíková, Martina Vachová, Pavlína Králíčková, Irena Krčmová, Miloš Jeseňák, and Tomáš Freiberger

Subjects
FXII, hereditary angioedema, immune cell, interferon-gamma, gene expression, Genetics, QH426-470
Abstract

Hereditary angioedema (HAE) is a rare genetic disorder with variable expressivity even in carriers of the same underlying genetic defect, suggesting other genetic and epigenetic factors participate in modifying HAE severity. Recent knowledge indicates the role of immune cells in several aspects of HAE pathogenesis, which makes monocytes and macrophages candidates to mediate these effects. Here we combined a search for HAE phenotype modifying gene variants with the characterization of selected genes’ mRNA levels in monocyte and macrophages in a symptom-free period. While no such gene variant was found to be associated with a more severe or milder disease, patients revealed a higher number of dysregulated genes and their expression profile was significantly altered, which was typically manifested by changes in individual gene expression or by strengthened or weakened relations in mutually co-expressed gene groups, depending on HAE severity. SERPING1 showed decreased expression in HAE-C1INH patients, but this effect was significant only in patients carrying mutations supposedly activating nonsense-mediated decay. Pro-inflammatory CXC chemokine superfamily members CXCL8, 10 and 11 were downregulated, while other genes such as FCGR1A, or long non-coding RNA NEAT1 were upregulated in patients. Co-expression within some gene groups (such as an NF-kappaB function related group) was strengthened in patients with a severe and/or mild course compared to controls. All these findings show that transcript levels in myeloid cells achieve different activation or depression levels in HAE-C1INH patients than in healthy controls and/or based on disease severity and could participate in determining the HAE phenotype.

Published
2023
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2. Abstracts from the 10th C1-inhibitor deficiency workshop

Author

Alvin H. Schmaier, Marco Cicardi, Avner Reshef, Dumitru Moldovan, Attila Mócsai, Margarita López-Trascasa, Alberto López Lera, Nancy J. Brown, Anastasios E. Germenis, Rafael Filippelli-Silva, Diego A. Duarte, Renan P. Martin, Camila L. Veronez, Michel Bouvier, Michael Bader, Claudio M. Costa-Neto, João Bosco Pesquero, Xavier Charest-Morin, François Marceau, Georges-É. Rivard, Arnaud Bonnefoy, Éric Wagner, Márta L. Debreczeni, Zsuzsanna Németh, Erika Kajdácsi, Endre Schwaner, László Cervenak, Gábor Oroszlán, András Szilágyi, Ráhel Dani, Péter Závodszky, Péter Gál, József Dobó, Jacques Hébert, Matthieu Vincent, Jean-Nicolas Boursiquot, Hugo Chapdeleine, Marylin Desjardins, Benoit Laramée, Rémi Gagnon, Nancy Payette, Oleksandra Lepeshkina, Delphine Charignon, Arije Ghannam, Denise Ponard, Christian Drouet, Kusumam Joseph, Baby G. Tholanikunnel, Daniel J. Sexton, Allen P. Kaplan, Stefania Loffredo, Maria Bova, Anne Lise Ferrara, Angelica Petraroli, Chiara Suffritti, Nóra Veszeli, Andrea Zanichelli, Henriette Farkas, Gianni Marone, Samuel Luyasu, Bertrand Favier, Ludovic Martin, Kinga Viktória Kőhalmi, György Temesszentandrási, Katalin Várnai, Lilian Varga, Bruce L. Zuraw, Annette Feussner, Michael A. Tortorici, Dipti Pawaskar, Huamin Henry Li, John Anderson, Jonathan A. Bernstein, Ying Zhang, Ingo Pragst, on behalf of COMPACT investigators, Emel Aygören-Pürsün, Kraig Jacobson, Jim Christensen, Arthur Van Leerberghe, Yi Wang, Jennifer Schranz, Inmaculada Martinez-Saguer, Daniel Soteres, Urs Steiner, Vesna Grivcheva Panovska, William Rae, Werner Aberer, Aarnoud Huissoon, Anette Bygum, Markus Magerl, Jochen Graff, Hilary Longhurst, Ramón Lleonart, Lei Fang, Melanie Cornpropst, Desiree Clemons, Amanda Mathis, Phil Collis, Sylvia Dobo, William P. Sheridan, Marcus Maurer, Marc A. Riedl, Timothy Craig, Aleena Banerji, Mustafa Shennak, William Yang, Jovanna Baptista, Paula Busse, Ira Kalfus, Andrew McDonald, Shawn Qian, Anthony Roberts, Con Panousis, Tim Green, Andreas Gille, Maria Zamanakou, Gedeon Loules, Dorottya Csuka, Fotis Psarros, Faidra Parsopoulou, Matthaios Speletas, Davide Firinu, Tiziana Maria Angela De Pasquale, Alessandra Zoli, Anna Radice, Stefano Pizzimenti, Emmanouil Manoussakis, George N. Konstantinou, Valeria Bafunno, Vincenzo Montinaro, Mauro Cancian, Maurizio Margaglione, Konrad Bork, Karin Wulff, Guenther Witzke, Jochen Hardt, Laurence Bouillet, Teresa Caballero, Anete S. Grumach, Christelle Pommie, Irmgard Andresen, Carmen Escuriola Ettingshausen, Zeynep Gutowski, Karin Andritschke, Richard Linde, Noémi Andrási, Tamás Szilágyi, Iris Leibovich-Nassi, Christine Symons, John Dempster, Isabelle Boccon-Gibod, Anne Pagnier, Audrey Lehmann, Kristian B. Kreiberg, Sandra A. Nieto, Raquel Martins, Renata Martins, Alejandra Menendez, Solange O. R. Valle, Margarita Olivares, Maria E. Hernandez-Landeros, Elma Nievas, Natalia Fili, Olga M. Barrera, René Bailleau, Ana Maria Gallardo-Olivos, Masumi Grau, Julian Rodriguez-Galindo, Marlon J. O. Carabantes, Edison Zapata-Venegas, Mario Martinez Alfonso, Maria Rosario-Grauert, Manuel Ratti, Daniel Vaszquez, Dario Josviack, Luis Fernando Landivar-Salinas, Oscar M. E. Calderón-Llosa, Rolando Campilay-Sarmiento, Pablo Raby, Jose Fabiani, William R. Lumry, Henrike Feuersenger, Douglas J. Watson, Thomas Machnig, on behalf of the Investigators of the COMPACT study, Donatella Lamacchia, Adriana Hernanz, Ana Alvez, Mariana Lluncor, Maria Pedrosa, Rosario Cabañas, Nieves Prior, Patrik Nordenfelt, Mats Nilsson, Anders Lindfors, Carl-Fredrik Wahlgren, Janne Björkander, Roman Hakl, Pavel Kuklínek, Irena Krčmová, Jana Hanzlíková, Martina Vachová, Radana Zachová, Marta Sobotková, Jana Strenková, Jiří Litzman, Maria Palasopoulou, Gerasimina Tsinti, Panagiota Gianni, Maria Kompoti, Sofia Garrido, Wojciech Dyga, Anna Bogdali, Aleksander Obtułowicz, Mikolajczyk Tomasz, Ewa Czarnobilska, Krystyna Obtulowicz, Teofila Książek, Anna Koncz, Dominik Gulyás, Maria Staevska, Milos Jesenak, Katarina Hrubiskova, L. Bellizzi, A. Relan, Maddalena A. Wu, Antonio Castelli, Riccardo Colombo, Gianmarco Podda, Marta Del Medico, Emanuele Catena, Francesco Casella, Francesca Perego, Nada Afifi Afifi, Eleonora Tobaldini, Nicola Montano, for the IOS Study Group, Marta Sánchez-Jareño, Marcin Stobiecki, Krystyna Obtułowicz, Irina Guryanova, Ekaterina Polyakova, Viktar Lebedz, Andrej Salivonchik, Svetlana Aleshkevich, Mikhail Belevtsev, Melanie Nordmann-Kleiner, Susanne Trainotti, Janina Hahn, Jens Greve, Liudmyla Zabrodska, Maria L. Oliva Alonso, Rosangela P. Tórtora, Alfeu T. França, Marcia G. Ribeiro, Lisa Fu, Amin Kanani, Gina Lacuesta, Susan Waserman, Stephen Betschel, Melissa I. Espinosa, Francisco A. Contreras, Martin Hrubisko, Ludmila Vavrova, Peter Banovcin, Maryam Ayazi, Mohammad Reza Fazlollahi, Shiva Saghafi, Sajedeh Mohammadian, Susan Nabilou Deshiry, Kiana Bidad, Raheleh Shokouhi Shoormasti, Iraj Mohammadzadeh, Mohammad Hassan Bemanian, Seyed Alireza Mahdaviani, Zahra Pourpak, Anna Valerieva, Mariela Vasileva, Tsvetelina Velikova, Elena Petkova, Vasil Dimitrov, Ruggero Di Maulo, on behalf of participating centers, Raz Somech, Hava Golander, Erika J. Sifuentes, Catherine Mansard, Anne Gompel, Bernard Floccard, Claire Blanchard-Delaunay, David Launay, Olivier Fain, Alain Sobel, Stéphane Gayet, Stéphanie Amarger, Guillaume Armengol, Yann Ollivier, Ariane Zélinsky-Gurung, Pierre-Yves Jeandel, Gisèle Kanny, Brigitte Coppéré, Marie Dubrel, Fabien Pelletier, Aurélie Du Thanh, Sébastien Trouiller, Jérôme Laurent, Claire De Moreuil, Christine Audouin Pajot, Alexandre Belot, Ana Rodríguez, Dasha Roa, Alicia Prieto, Maria Luisa Baeza, Borislava Krusheva, Stephanie K. A. Almeida, Rosemeire N. Constantino-Silva, Nyla Melo, Joanna Araujo Simoes, Sandra Mitie U. Palma, Jane da Silva, Bruna F. de Azevedo, Eli Mansour, Teresa González-Quevedo, Carmen Marcos, Teófilo Lobera, Blanca Sáenz de San Pedro, Ernie Avilla, Jacquie Badiou, Karen Binkley, Rozita Borici-Mazi, Linda Howlett, Paul K. Keith, Anne Rowe, Peter Waite, Aurore Billebeau, Isabelle Boccon-Gibbod, Kristina Lis, Yael Laitman, Eitan Friedman, N. M. Gokmen, O. Gulbahar, H. Onay, Z. P. Koc, and A. Z. Sin

Subjects
Immunologic diseases. Allergy, RC581-607
Published
2017
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3. Early development of immunity in diGeorge syndrome

Author

Anna, Sedivá, Jiøina, Bartůnková, Radana, Zachová, Andrea, Poloucková, Ondrej, Hrusák, Ales, Janda, Eduard, Kocárek, Drahuse, Novotná, Kamila, Novotná, and Tibor, Klein

Subjects
Adult, Male, Aging, Adolescent, T-Lymphocytes, Infant, Newborn, Infant, Lymphocyte Activation, Immunoglobulin A, Cohort Studies, Child, Preschool, Immunoglobulin G, DiGeorge Syndrome, Humans, Female, Child, Autoantibodies
Abstract

diGeorge syndrome is a relatively common congenital disorder with developmental defects, including hypoplasia or pathologic migration of the thymus, associated with deletion of contiguous genes on chromosome 22. We prospectively followed a cohort of children with confirmed 22q11.2 deletion.One to six repeated examination were performed in 13 boys and 21 girls, age 4 days to 19 years. Due to the proposed role of the thymus in T lymphocyte selection, we studied T lymphocytes and their function, and also the presence of double positive CD4+CD8+ and gamma/delta T lymphocytes in peripheral blood.A low number of T lymphocytes was detected in the majority of patients before the age of 2 years. Both spontaneous and PHA-induced proliferation were unexpectedly higher than in normal samples from children2 years old. Both T cell numbers and function normalized thereafter in the majority of patients. Double positive T cells were detected in one boy, together with transient positivity of antinuclear antibodies. Gamma/delta T cells were greater than 5% in 21% of the children. In our 5-year prospective study we have not yet observed serious clinical signs of immunodeficiency or autoimmunity in these patients, except for repeated respiratory infections.All patients classified as partial diGeorge syndrome presented with delayed but gradual development of immune function against a background of impaired support by the thymus.

Published
2004

4. Natural Course of Activated Phosphoinositide 3-Kinase Delta Syndrome in Childhood and Adolescence

Author

Marketa Bloomfield, Adam Klocperk, Radana Zachova, Tomas Milota, Veronika Kanderova, and Anna Sediva

Subjects
APDS, immunoglobulins, lymphoproliferation, immunodeficiency, infection, PI3K, Pediatrics, RJ1-570
Abstract

Activated phosphoinositide 3-kinase delta syndrome (APDS), caused by mutations in PI3Kδ catalytic p110δ (PIK3CD) or regulatory p85α (PIK3R1) subunits, is a primary immunodeficiency affecting both humoral and cellular immunity, which shares some phenotypic similarities with hyper-IgM syndromes and common variable immunodeficiency (CVID). Since its first description in 2013, over 200 patients have been reported worldwide. Unsurprisingly, many of the newly diagnosed patients were recruited later in life from previously long-standing unclassified immunodeficiencies and the early course of the disease is, therefore, often less well-described. In this study, we report clinical and laboratory features of eight patients followed for APDS, with particular focus on early warning signs, longitudinal development of their symptoms, individual variations, and response to therapy. The main clinical features shared by our patients included recurrent bacterial and viral respiratory tract infections, gastrointestinal disease, non-malignant lymphoproliferation, autoimmune thyroiditis, and susceptibility to EBV. All patients tolerated vaccination with both attenuated live and subunit vaccines with no adverse effects, although some failed to mount adequate antibody response. Laboratory findings were characterized by dysgammaglobulinaemia, elevated serum IgM, block in B-cell maturation with high transitional B cells, and low naïve T cells with CD8 T-cell activation. All patients benefited from immunoglobulin replacement therapy, whereas immunosuppression with mTOR pathway inhibitors was only partially successful. Therapy with specific PI3K inhibitor leniolisib was beneficial in all patients in the clinical trial. These vignettes, summary data, and particular tell-tale signs should serve to facilitate early recognition, referral, and initiation of outcome-improving therapy.

Published
2021
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