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1. The German National Registry of Primary Immunodeficiencies (2012–2017)

Author

Sabine M. El-Helou, Anika-Kerstin Biegner, Sebastian Bode, Stephan R. Ehl, Maximilian Heeg, Maria E. Maccari, Henrike Ritterbusch, Carsten Speckmann, Stephan Rusch, Raphael Scheible, Klaus Warnatz, Faranaz Atschekzei, Renata Beider, Diana Ernst, Stev Gerschmann, Alexandra Jablonka, Gudrun Mielke, Reinhold E. Schmidt, Gesine Schürmann, Georgios Sogkas, Ulrich H. Baumann, Christian Klemann, Dorothee Viemann, Horst von Bernuth, Renate Krüger, Leif G. Hanitsch, Carmen M. Scheibenbogen, Kirsten Wittke, Michael H. Albert, Anna Eichinger, Fabian Hauck, Christoph Klein, Anita Rack-Hoch, Franz M. Sollinger, Anne Avila, Michael Borte, Stephan Borte, Maria Fasshauer, Anja Hauenherm, Nils Kellner, Anna H. Müller, Anett Ülzen, Peter Bader, Shahrzad Bakhtiar, Jae-Yun Lee, Ursula Heß, Ralf Schubert, Sandra Wölke, Stefan Zielen, Sujal Ghosh, Hans-Juergen Laws, Jennifer Neubert, Prasad T. Oommen, Manfred Hönig, Ansgar Schulz, Sandra Steinmann, Klaus Schwarz, Gregor Dückers, Beate Lamers, Vanessa Langemeyer, Tim Niehues, Sonu Shai, Dagmar Graf, Carmen Müglich, Marc T. Schmalzing, Eva C. Schwaneck, Hans-Peter Tony, Johannes Dirks, Gabriele Haase, Johannes G. Liese, Henner Morbach, Dirk Foell, Antje Hellige, Helmut Wittkowski, Katja Masjosthusmann, Michael Mohr, Linda Geberzahn, Christian M. Hedrich, Christiane Müller, Angela Rösen-Wolff, Joachim Roesler, Antje Zimmermann, Uta Behrends, Nikolaus Rieber, Uwe Schauer, Rupert Handgretinger, Ursula Holzer, Jörg Henes, Lothar Kanz, Christoph Boesecke, Jürgen K. Rockstroh, Carolynne Schwarze-Zander, Jan-Christian Wasmuth, Dagmar Dilloo, Brigitte Hülsmann, Stefan Schönberger, Stefan Schreiber, Rainald Zeuner, Tobias Ankermann, Philipp von Bismarck, Hans-Iko Huppertz, Petra Kaiser-Labusch, Johann Greil, Donate Jakoby, Andreas E. Kulozik, Markus Metzler, Nora Naumann-Bartsch, Bettina Sobik, Norbert Graf, Sabine Heine, Robin Kobbe, Kai Lehmberg, Ingo Müller, Friedrich Herrmann, Gerd Horneff, Ariane Klein, Joachim Peitz, Nadine Schmidt, Stefan Bielack, Ute Groß-Wieltsch, Carl F. Classen, Jessica Klasen, Peter Deutz, Dirk Kamitz, Lisa Lassay, Klaus Tenbrock, Norbert Wagner, Benedikt Bernbeck, Bastian Brummel, Eusebia Lara-Villacanas, Esther Münstermann, Dominik T. Schneider, Nadine Tietsch, Marco Westkemper, Michael Weiß, Christof Kramm, Ingrid Kühnle, Silke Kullmann, Hermann Girschick, Christof Specker, Elisabeth Vinnemeier-Laubenthal, Henriette Haenicke, Claudia Schulz, Lothar Schweigerer, Thomas G. Müller, Martina Stiefel, Bernd H. Belohradsky, Veronika Soetedjo, Gerhard Kindle, and Bodo Grimbacher

Subjects
registry for primary immunodeficiency, primary immunodeficiency (PID), German PID-NET registry, PID prevalence, European Society for Immunodeficiencies (ESID), IgG substitution therapy, Immunologic diseases. Allergy, RC581-607
Abstract

Introduction: The German PID-NET registry was founded in 2009, serving as the first national registry of patients with primary immunodeficiencies (PID) in Germany. It is part of the European Society for Immunodeficiencies (ESID) registry. The primary purpose of the registry is to gather data on the epidemiology, diagnostic delay, diagnosis, and treatment of PIDs.Methods: Clinical and laboratory data was collected from 2,453 patients from 36 German PID centres in an online registry. Data was analysed with the software Stata® and Excel.Results: The minimum prevalence of PID in Germany is 2.72 per 100,000 inhabitants. Among patients aged 1–25, there was a clear predominance of males. The median age of living patients ranged between 7 and 40 years, depending on the respective PID. Predominantly antibody disorders were the most prevalent group with 57% of all 2,453 PID patients (including 728 CVID patients). A gene defect was identified in 36% of patients. Familial cases were observed in 21% of patients. The age of onset for presenting symptoms ranged from birth to late adulthood (range 0–88 years). Presenting symptoms comprised infections (74%) and immune dysregulation (22%). Ninety-three patients were diagnosed without prior clinical symptoms. Regarding the general and clinical diagnostic delay, no PID had undergone a slight decrease within the last decade. However, both, SCID and hyper IgE- syndrome showed a substantial improvement in shortening the time between onset of symptoms and genetic diagnosis. Regarding treatment, 49% of all patients received immunoglobulin G (IgG) substitution (70%—subcutaneous; 29%—intravenous; 1%—unknown). Three-hundred patients underwent at least one hematopoietic stem cell transplantation (HSCT). Five patients had gene therapy.Conclusion: The German PID-NET registry is a precious tool for physicians, researchers, the pharmaceutical industry, politicians, and ultimately the patients, for whom the outcomes will eventually lead to a more timely diagnosis and better treatment.

Published
2019
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2. Initial presenting manifestations in 16,486 patients with inborn errors of immunity include infections and noninfectious manifestations

Author

Tim Niehues, Catherine Waruiru, Conleth Feighery, Uwe Schauer, Virginie Courteille, Kai Lehmberg, Ingo Müller, I. Esteves, Henner Morbach, Michael Borte, Patrick Hundsdoerfer, Klaus Schwarz, Ewelina Gowin, Alessandro Aiuti, Andreas Holbro, Federica Barzaghi, João Farela Neves, Dagmar Graf, Hannah Tamary, Veneta Milenova, Benedikt Boetticher, Eleonora Gambineri, Vera Goda, Alia Eldash, Jan-Christian Wasmuth, Fabio Candotti, Svetlana O. Sharapova, Markus Metzler, Juergen Brunner, Anna Hilfanova, Brindusa Ruxandra Capilna, Pere Soler-Palacín, Arnau Antolí, Horst von Bernuth, Vassilios Lougaris, Maria Carrabba, Bernd H. Belohradsky, Julian Thalhammer, Nathalie de Vergnes, Peter Olbrich, Peter Kopač, Leif G. Hanitsch, Alexandra Nieters, Filomeen Haerynck, Juliana Gabzdilova, Sezin Aydemir, Rabab El Hawary, Patrick F.K. Yong, Maria Giovanna Danieli, Alberto Tommasini, Sandra Steinmann, Ulrich Baumann, Figen Dogu, Elisabeth Förster-Waldl, Carolina Marasco, Donato Amodio, Lorenzo Lodi, Xavier Solanich, Caterina Cancrini, Brigita Sitkauskiene, Torsten Witte, Clementina Vanessa, Nima Rezaei, Jean-Christophe Goffard, Kirsten Wittke, Emmanouil Liatsis, Helen Baxendale, Susana L. Silva, Bodo Grimbacher, Henrike Ritterbusch, Evangelia Farmaki, Safa Meshaal, Sujal Ghosh, Larysa Kostyuchenko, David Edgar, Simone Cesaro, R Zeuner, Nerea Salmón Rodríguez, Isabella Quinti, Stephan Ehl, Pauline Brosselin, Joerg C. Henes, Pilar Llobet Agulló, Rosa Maria Dellepiane, Andrea Meinhardt, Marina Kojić, Georgios Sogkas, Stephan Borte, Catharina Schuetz, Suheyla Ocak, Karin Marschall, Lukas M. Gasteiger, Stefan Raffac, Sofia Tantou, Sadia Noorani, Matthaios Speletas, Philippe Randrianomenjanahary, Ursula Holzer, Ayca Kiykim, Johannes G. Liese, Angelo Vacca, Gisela Fecker, Ekrem Unal, Koen J. van Aerde, Alba Parra-Martínez, Kaan Boztug, Sophie Stiehler, Sybille Landwehr-Kenzel, Claudio Pignata, Jennifer Neubert, Janine Reichenbach, Shahnaz Parvin, Sarah Goddard, Andrea Schroll, Dirk Holzinger, Asghar Aghamohammadi, Hassan Abolhassani, Johannes Trück, Estela Paz-Artal, Shereen M. Reda, Anna Shcherbina, Maria Raptaki, Jaroslava Orosova, Beata Wolska-Kuśnierz, Tessa Kerre, Gerrit Ahrenstorf, Ben Zion Garty, Dirk Foell, Benjamin Becker, Ulrike F. Demel, Androniki Kapousouzi, Abraham Rutgers, Klaus Warnatz, Gemma Rocamora Blanch, Stephan Rusch, Luis M. Allende, Dalia Abd Elaziz, Safa Baris, Jorisvan Montfrans, Dominik T. Schneider, Raphael Scheible, Juana Gil-Herrera, Gerhard Kindle, Annarosa Soresina, Giovanna Fabio, Uwe Wintergerst, Emilia Faria, Maria Fasshauer, Silvia Ricci, Aisha Elmarsafy, Barbara Pietrucha, Carsten Speckmann, Nizar Mahlaoui, Ulrich Heininger, Isabelle Meyts, Matthew Buckland, Efimia Papadopoulou-Alataki, Robin Kobbe, A Herwadkar, Sebastian F. N. Bode, Ali Sobh, László Maródi, Baldassarre Martire, Chiara Azzari, Maximilian Heeg, Katja Masjosthusmann, Michael H. Albert, Matteo Chinello, Juan Luis Santos-Pérez, Aarnoud Huissoon, Tanya I. Coulter, Hendrik Schulze-Koops, Norbert Graf, Radwa Alkady, Jolanta Bernatoniene, Seraina Prader, Alenka Gagro, Joachim Roesler, Taco W. Kuijpers, Ewa Więsik-Szewczyk, Maria Elena Maccari, Conrad Ferdinand Lippert, Miriam González-Amores, Johannes Dirks, Daniel E Pleguezuelo, Christof M. Kramm, Anders Fasth, Volker Schuster, Olov Ekwall, Nikolaus Rieber, Javier Carbone, Petra Kaiser-Labusch, Diana Ernst, Lucia Augusta Baselli, Luis Ignacio Gonzalez-Granado, Maria Kanariou, Stefanie S. V. Henriet, Sigune Goldacker, Kerstin Felgentreff, Oana Joean, Fine Roosens, Fabian Hauck, Eva C. Schwaneck, Milos Jesenak, Manfred Hoenig, Lenka Kapustova, Christoph Boesecke, Alain Fischer, Sara Pereira da Silva, Julia Körholz, Ansgar Schulz, Carolynne Schwarze-Zander, Mikko Seppänen, Nermeen Galal, Nora Naumann-Bartsch, Tomaz Garcez, Peter Ciznar, Klara M. Posfay-Barbe, Zelimir Pavle Eric, Reinhold E. Schmidt, Hermann J. Girschick, Sabine Heine, Anika-Kerstin Biegner, Annick A. J. M. van de Ven, Stefan Schreiber, J. Merlijn van den Berg, Nurit Assia Batzir, Alexandra Jablonka, Kim Stol, Gregor Dückers, Antonios G.A. Kolios, Ioannis Kakkas, Christian Klemann, Marina N. Guseva, Sofia Grigoriadou, Elif Karakoc-Aydiner, Antonio Marzollo, Peter D. Arkwright, Urs C. Steiner, Sara Sebnem Kilic, Romina Dieli-Crimi, Gergely Kriván, Monika Sparber-Sauer, Marco Cazzaniga, Fulvio Porta, Paraskevi Maggina, Tomas Milota, Robbert G. M. Bredius, Martine Pergent, Klaus Tenbrock, Jana Pachlopnik Schmid, Florentia Dimitriou, Cathal Laurence Steele, Helen Bourne, Anna Bobcakova, Gerd Horneff, Judith Potjewijd, Marc Schmalzing, Tobias Ankermann, Paul Ryan, Oksana Boyarchuk, Necil Kutukculer, Carl Friedrich Classen, Zita Chovancová, Moira Thomas, Cinzia Milito, Michaela Bitzenhofer-Grüber, Faranaz Atschekzei, Eva Hlaváčková, Viviana Moschese, Julie Smet, Hans-Hartmut Peter, Carla Teixeira, Sabine M El-Helou, Suzanne de Kruijf Bazen, Helmut Wittkowski, Donate Jakoby, Marina Garcia-Prat, Esther de Vries, Richard Herriot, Sven Kracker, Alessandro Plebani, Lisa Göschl, Laura Hora Marques, Anna Sediva, Jiri Litzman, Mark M. Gompels, Renate Krüger, Şefika İlknur Kökçü Karadağ, Nadine Binder, Anna Szaflarska, Peter Jandus, Lisa Ibberson, Johann Greil, Ulf Schulze-Sturm, Mehtap Sirin, Aydan Ikinciogullari, Edyta Heropolitańska-Pliszka, Michael E. Weiss, Alla Skapenko, Lukas Wisgrill, Hana Alachkar, Uta Behrends, Silvia Sánchez-Ramón, Maria N. Hatzistilianou, Otilia Petrovicova, Darko Richter, Zoreh Nademi, Jürgen K. Rockstroh, Sohilla Lotfy, Markus G. Seidel, Timothy Ronan Leahy, Audra Blažienė, Translational Immunology Groningen (TRIGR), Paediatric Infectious Diseases / Rheumatology / Immunology, AII - Inflammatory diseases, ARD - Amsterdam Reproduction and Development, University of Zurich, Ehl, Stephan, Thalhammer, J., Kindle, G., Nieters, A., Rusch, S., Seppanen, M. R. J., Fischer, A., Grimbacher, B., Edgar, D., Buckland, M., Mahlaoui, N., Ehl, S., Boztug, K., Brunner, J., Demel, U. F., Forster-Waldl, E., Gasteiger, L. M., Goschl, L., Kojic, M., Schroll, A., Seidel, M. G., Wintergerst, U., Wisgrill, L., Sharapova, S. O., Goffard, J. -C., Kerre, T., Meyts, I., Roosens, F., Smet, J., Haerynck, F., Eric, Z. P., Milenova, V., Gagro, A., Richter, D., Chovancova, Z., Hlavackova, E., Litzman, J., Milota, T., Sediva, A., Elaziz, D. A., Alkady, R. S., El Sayed El Hawary, R., Eldash, A. S., Galal, N., Lotfy, S., Meshaal, S. S., Reda, S. M., Sobh, A., Elmarsafy, A., Brosselin, P., Courteille, V., De Vergnes, N., Kracker, S., Pergent, M., Randrianomenjanahary, P., Ahrenstorf, G., Albert, M. H., Ankermann, T., Atschekzei, F., Baumann, U., Becker, B. C., Behrends, U., Belohradsky, B. H., Biegner, A. -K., Binder, N., Bode, S. F. N., Boesecke, C., Boetticher, B., Borte, M., Borte, S., Classen, C. F., Dirks, J., Duckers, G., El-Helou, S., Ernst, D., Fasshauer, M., Fecker, G., Felgentreff, K., Foell, D., Ghosh, S., Girschick, H. J., Goldacker, S., Graf, N., Graf, D., Greil, J., Hanitsch, L. G., Hauck, F., Heeg, M., Heine, S. I., Henes, J. C., Hoenig, M., Holzer, U., Holzinger, D., Horneff, G., Hundsdoerfer, P., Jablonka, A., Jakoby, D., Joean, O., Kaiser-Labusch, P., Klemann, C., Kobbe, R., Korholz, J., Kramm, C. M., Kruger, R., Landwehr-Kenzel, S., Lehmberg, K., Liese, J. G., Lippert, C. F., Maccari, M. E., Masjosthusmann, K., Meinhardt, A., Metzler, M., Morbach, H., Muller, I., Naumann-Bartsch, N., Neubert, J., Niehues, T., Peter, H. -H., Rieber, N., Ritterbusch, H., Rockstroh, J. K., Roesler, J., Schauer, U., Scheible, R., Schmalzing, M., Schmidt, R. E., Schneider, D. T., Schreiber, S., Schuetz, C., Schulz, A., Schulze-Koops, H., Schulze-Sturm, U., Schuster, V., Schwaneck, E. C., Schwarz, K., Schwarze-Zander, C., Sirin, M., Skapenko, A., Sogkas, G., Sparber-Sauer, M., Speckmann, C., Steinmann, S., Stiehler, S., Tenbrock, K., von Bernuth, H., Warnatz, K., Wasmuth, J. -C., Weiss, M., Witte, T., Wittke, K., Wittkowski, H., Zeuner, R. A., Farmaki, E., Hatzistilianou, M. N., Kakkas, I., Kanariou, M. G., Kapousouzi, A., Liatsis, E., Maggina, P., Papadopoulou-Alataki, E., Raptaki, M., Speletas, M., Tantou, S., Goda, V., Krivan, G., Marodi, L., Abolhassani, H., Aghamohammadi, A., Rezaei, N., Feighery, C., Leahy, T. R., Ryan, P., Batzir, N. A., Garty, B. Z., Tamary, H., Aiuti, A., Amodio, D., Azzari, C., Barzaghi, F., Baselli, L. A., Cancrini, C., Carrabba, M., Cazzaniga, M., Cesaro, S., Chinello, M., Danieli, M. G., Dellepiane, R. M., Fabio, G., Gambineri, E., Lodi, L., Lougaris, V., Marasco, C., Martire, B., Marzollo, A., Milito, C., Moschese, V., Pignata, C., Plebani, A., Porta, F., Quinti, I., Ricci, S., Soresina, A., Tommasini, A., Vacca, A., Vanessa, C., Blaziene, A., Sitkauskiene, B., Gowin, E., Heropolitanska-Pliszka, E., Pietrucha, B., Szaflarska, A., Wiesik-Szewczyk, E., Wolska-Kusnierz, B., Esteves, I., Faria, E., Marques, L. H., Neves, J. F., Silva, S. L., Teixeira, C., Pereira da Silva, S., Capilna, B. R., Guseva, M. N., Shcherbina, A., Bobcakova, A., Ciznar, P., Gabzdilova, J., Jesenak, M., Kapustova, L., Orosova, J., Petrovicova, O., Raffac, S., Kopac, P., Allende, L. M., Antoli, A., Blanch, G. R., Carbone, J., Dieli-Crimi, R., Garcia-Prat, M., Gil-Herrera, J., Gonzalez-Granado, L. I., Agullo, P. L., Olbrich, P., Parra-Martinez, A., Paz-Artal, E., Pleguezuelo, D. E., Rodriguez, N. S., Sanchez-Ramon, S., Santos-Perez, J. L., Solanich, X., Soler-Palacin, P., Gonzalez-Amores, M., Ekwall, O., Fasth, A., Bitzenhofer-Gruber, M., Candotti, F., Dimitriou, F., Heininger, U., Holbro, A., Jandus, P., Kolios, A. G. A., Marschall, K., Schmid, J. P., Posfay-Barbe, K. M., Prader, S., Reichenbach, J., Steiner, U. C., Truck, J., Bredius, R. G., de Kruijf- Bazen, S., de Vries, E., Henriet, S. S. V., Kuijpers, T. W., Potjewijd, J., Rutgers, A., Stol, K., van Aerde, K. J., Van den Berg, J. M., van de Ven, A. A. J. M., Montfrans, J., Aydemir, S., Baris, S., Dogu, F., Ikinciogullari, A., Karakoc-Aydiner, E., Kilic, S. S., Kiykim, A., Kokcu Karadag, S. I., Kutukculer, N., Ocak, S., Unal, E., Boyarchuk, O., Hilfanova, A., Kostyuchenko, L. V., Alachkar, H., Arkwright, P. D., Baxendale, H. E., Bernatoniene, J., Coulter, T. I., Garcez, T., Goddard, S., Gompels, M. M., Grigoriadou, S., Herriot, R., Herwadkar, A., Huissoon, A., Ibberson, L., Nademi, Z., Noorani, S., Parvin, S., Steele, C. L., Thomas, M., Waruiru, C., Yong, P. F. K., and Bourne, H.

Subjects
0301 basic medicine, Male, Pediatrics, syndromic, Sex Factor, Disease, registry, medicine.disease_cause, Cohort Studies, 0302 clinical medicine, Primary Immunodeficiency Disease, inborn error of immunity, Immunology and Allergy, warning signs, Age Factor, Registries, Family history, presenting symptom, Child, Primary immunodeficiency, Granuloma, autoimmune, immune dysregulation, inflammatory, Adult, Autoimmune Diseases, Female, Humans, Infections, Lymphoproliferative Disorders, Middle Aged, Primary Immunodeficiency Diseases, Sex Factors, Age Factors, 10177 Dermatology Clinic, Infections/epidemiology, 3. Good health, Settore MED/02, Warning signs, Lymphoproliferative Disorder, 2723 Immunology and Allergy, Infection, Human, medicine.medical_specialty, Immunology, 610 Medicine & health, Malignancy, primary immunodeficiency, Autoimmune Disease, 03 medical and health sciences, Immunity, Autoimmune Diseases/epidemiology, medicine, 2403 Immunology, business.industry, warning sign, Common variable immunodeficiency, Granuloma/epidemiology, Immune dysregulation, medicine.disease, Primary Immunodeficiency Diseases/epidemiology, 030104 developmental biology, Lymphoproliferative Disorders/epidemiology, Cohort Studie, business, 030215 immunology
Abstract

BACKGROUND: Inborn errors of immunity (IEI) are rare diseases, which makes diagnosis a challenge. A better description of the initial presenting manifestations should improve awareness and avoid diagnostic delay. Although increased infection susceptibility is a well-known initial IEI manifestation, less is known about the frequency of other presenting manifestations.OBJECTIVE: We sought to analyze age-related initial presenting manifestations of IEI including different IEI disease cohorts.METHODS: We analyzed data on 16,486 patients of the European Society for Immunodeficiencies Registry. Patients with autoinflammatory diseases were excluded because of the limited number registered.RESULTS: Overall, 68% of patients initially presented with infections only, 9% with immune dysregulation only, and 9% with a combination of both. Syndromic features were the presenting feature in 12%, 4% had laboratory abnormalities only, 1.5% were diagnosed because of family history only, and 0.8% presented with malignancy. Two-third of patients with IEI presented before the age of 6 years, but a quarter of patients developed initial symptoms only as adults. Immune dysregulation was most frequently recognized as an initial IEI manifestation between age 6 and 25 years, with male predominance until age 10 years, shifting to female predominance after age 40 years. Infections were most prevalent as a first manifestation in patients presenting after age 30 years.CONCLUSIONS: An exclusive focus on infection-centered warning signs would have missed around 25% of patients with IEI who initially present with other manifestations.

Published
2021

3. Simple Measurement of IgA Predicts Immunity and Mortality in Ataxia-Telangiectasia

Author

Pere Soler-Palacín, Larysa Kostyuchenko, Peter Bader, Catharina Schuetz, Shereen M. Reda, Ruth Pia Duecker, Bodo Grimbacher, Sharhzad Bakhtiar, Nizar Mahlaoui, Ralf Schubert, Dagmar Graf, Juan Luis Santos Pérez, E.V. Deripapa, Necil Kutukculer, Claudio Pignata, Seraina Prader, Isabelle Meyts, Maria Kanariou, Markus G. Seidel, Sandra Woelke, Peter Ciznar, Aileen Buecker, Stephan Ehl, Koen J. van Aerde, E. Graham Davies, Carlos Rodríguez-Gallego, Sabine Huenecke, Fabian Hauck, Gerhard Kindle, Hermann Kreyenberg, John David M Edgar, Tim Niehues, Hans-Juergen Laws, Helena Donath, Kai Lehmberg, Barbara Pietrucha, Mary Slatter, Renate Krueger, Elizabeth M. McDermott, Nermeen Galal, Michiel van der Flier, Claire Bethune, Horst von Bernuth, Peter D. Arkwright, Laura Hora Marques, Ismail Reisli, Stefan Zielen, Ulrich Baumann, Luis Ignacio Gonzalez Granado, Sara Sebnem Kilic, Sabine M El-Helou, Alessandro Plebani, Svetlana O. Sharapova, Institut Català de la Salut, [Zielen S, Duecker RP, Woelke S, Donath H, Buecker A] Division of Allergology, Pulmonology and Cystic Fibrosis, Department for Children and Adolescents, Goethe University, Frankfurt, Germany. [Bakhtiar S] Division for Stem Cell Transplantation, Immunology and Intensive Care Unit, Department for Children and Adolescents, Goethe University, Frankfurt, Germany. [Soler-Palacín P] Vall d’Hebron Institut de Recerca (VHIR), Barcelona, Spain. Unitat de Patologia Infecciosa i Immunodeficiències de Pediatria, Vall d’Hebron Hospital Universitari, Barcelona, Spain. Universitat Autònoma de Barcelona, Bellaterra, Spain, and Vall d'Hebron Barcelona Hospital Campus

Subjects
Male, Lymphocyte, lnfectious Diseases and Global Health Radboud Institute for Molecular Life Sciences [Radboudumc 4], Atàxia de Friedreich - Prognosi, Nervous System Diseases::Central Nervous System Diseases::Brain Diseases::Cerebellar Diseases::Cerebellar Ataxia::Spinocerebellar Ataxias::Ataxia Telangiectasia [DISEASES], Ataxia-telangiectasia, Liver disease, T-Lymphocyte Subsets, Immunology and Allergy, Repertoire, Otros calificadores::Otros calificadores::/inmunología [Otros calificadores], IgG Deficiency, Child, Immunodeficiency, B-Lymphocytes, Middle Aged, Immunoglobulina A, medicine.anatomical_structure, Phenotype, Child, Preschool, T-Cell Subsets, Cohort, Deficiency, Original Article, Female, IgA deficiency, Receptor, Adult, enfermedades del sistema nervioso::enfermedades del sistema nervioso central::enfermedades cerebrales::enfermedades cerebelosas::ataxia cerebelosa::ataxias espinocerebelosas::ataxia telangiectasia [ENFERMEDADES], Adolescent, Immunology, Generation, Immunoglobulins, Infections, Ataxia Telangiectasia, Young Adult, Immunity, Other subheadings::Other subheadings::/immunology [Other subheadings], Lymphopenia, medicine, Humans, Lymphocyte Count, ddc:610, Mortality, Surrogate endpoint, business.industry, Infant, medicine.disease, Immunoglobulin A, Oxidative Stress, Respiratory failure, Immunoglobulin M, Immunoglobulin G, Atm, business
Abstract

Patients with ataxia-telangiectasia (A-T) suffer from progressive cerebellar ataxia, immunodeficiency, respiratory failure, and cancer susceptibility. From a clinical point of view, A-T patients with IgA deficiency show more symptoms and may have a poorer prognosis. In this study, we analyzed mortality and immunity data of 659 A-T patients with regard to IgA deficiency collected from the European Society for Immunodeficiencies (ESID) registry and from 66 patients with classical A-T who attended at the Frankfurt Goethe-University between 2012 and 2018. We studied peripheral B- and T-cell subsets and T-cell repertoire of the Frankfurt cohort and survival rates of all A-T patients in the ESID registry. Patients with A-T have significant alterations in their lymphocyte phenotypes. All subsets (CD3, CD4, CD8, CD19, CD4/CD45RA, and CD8/CD45RA) were significantly diminished compared to standard values. Patients with IgA deficiency (n = 35) had significantly lower lymphocyte counts compared to A-T patients without IgA deficiency (n = 31) due to a further decrease of naive CD4 T-cells, central memory CD4 cells, and regulatory T-cells. Although both patient groups showed affected TCR-ss repertoires compared to controls, no differences could be detected between patients with and without IgA deficiency. Overall survival of patients with IgA deficiency was significantly diminished. For the first time, our data show that patients with IgA deficiency have significantly lower lymphocyte counts and subsets, which are accompanied with reduced survival, compared to A-T patients without IgA deficiency. IgA, a simple surrogate marker, is indicating the poorest prognosis for classical A-T patients. Both non-interventional clinical trials were registered at clinicaltrials.gov 2012 (Susceptibility to infections in ataxia-telangiectasia; NCT02345135) and 2017 (Susceptibility to Infections, tumor risk and liver disease in patients with ataxia-telangiectasia; NCT03357978), Projekt DEAL; German Federal Ministry of Education and Research (BMBF) [01GM0896, 01GM1111B, 01GM1517C, 01EO1303, 01ZZ1801B]; EU [HEALTHF2-2008-201549]; Novartis; GlaxoSmithKline; LFB; UCB UK; Plasma Protein Therapeutics Association (PPTA),; Care-for-Rare Foundation; PROimmune e.V; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [39087428]; UK National Institute of Health Research; Great Ormond Street Hospital Biomedical Research Centre, Open Access funding enabled and organized by Projekt DEAL. The ESID Registry was supported by the German Federal Ministry of Education and Research (BMBF 01GM0896, 01GM1111B, 01GM1517C, 01EO1303 and 01ZZ1801B) EU grant no. HEALTHF2-2008-201549 (EURO-PADnet), the pharmaceutical companies Novartis, GlaxoSmithKline, LFB, and UCB UK, the Plasma Protein Therapeutics Association (PPTA), the Care-for-Rare Foundation, PROimmune e.V, LFB, and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence StrategyEXC 2155 RESIST-Project ID 39087428. EGD is supported by the UK National Institute of Health Research and the Great Ormond Street Hospital Biomedical Research Centre.

Published
2021

4. Interleukin-21 restores immunoglobulin production ex vivo in patients with common variable immunodeficiency and selective IgA deficiency

Author

Qiang Pan-Hammarström, Chonghai Liu, Ulf Wagner, Michael Borte, Stephan Borte, Dagmar Graf, Ulrich Sack, Lennart Hammarström, and Publica

Subjects
Immunoglobulin A, Immunology, Gene Expression, Immunoglobulins, Apoptosis, Stimulation, In Vitro Techniques, Selective IgA deficiency, Immunoglobulin E, Biochemistry, CD19, Interleukin 21, medicine, Humans, RNA, Messenger, B-Lymphocytes, biology, Interleukins, Common variable immunodeficiency, IgA Deficiency, Interleukin-21 Receptor alpha Subunit, Cell Differentiation, Drug Synergism, Cell Biology, Hematology, medicine.disease, Immunoglobulin Class Switching, Recombinant Proteins, Interleukin-10, Common Variable Immunodeficiency, Case-Control Studies, Immunoglobulin G, biology.protein, Interleukin-2, Interleukin-4, Antibody
Abstract

Interleukin-21 (IL-21) is an important promoter for differentiation of human B cells into immunoglobulin (Ig)–secreting cells. The objective of this study was to evaluate an IL-21–based approach to induce immunoglobulin production in B cells from patients with common variable immunodeficiency (CVID) or selective IgA deficiency (IgAD). We show that a combination of IL-21, IL-4, and anti-CD40 stimulation induces class-switch recombination to IgG and IgA and differentiation of Ig-secreting cells, consisting of both surface IgG+ (sIgG+) and sIgA+ B cells and CD138+ plasma cells, in patients with CVID or IgAD. Stimulation with IL-21 was far more effective than stimulation with IL-4 or IL-10. Moreover, spontaneous apoptosis of CD19+ B cells from patients with CVID or IgAD was prevented by a combination of IL-21, IL-4, and anti-CD40 stimulation. Analysis of IL-21 and IL-21 receptor (IL-21R) mRNA expression upon anti-CD3 stimulation of T cells, however, showed no evidence for defective IL-21 expression in CVID patients and sequencing of the coding regions of the IL21 gene did not reveal any mutations, suggesting a regulatory defect. Thus, our work provides an initial basis for a potential therapeutic role of IL-21 to reconstitute immunoglobulin production in CVID and IgAD.

Published
2009

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