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Chatzikonstantinou T, Agathangelidis A, Chatzidimitriou A, Tresoldi C, Davis Z, Giudicelli V, Kossida S, Belessi C, Rosenquist R, Ghia P, Langerak AW, Davi F, Stamatopoulos K. Updates of the ERIC recommendations on how to report the results from immunoglobulin heavy variable gene analysis in chronic lymphocytic leukemia. Leukemia 2024; 38:679-680. [PMID: 38366088 PMCID: PMC10912022 DOI: 10.1038/s41375-024-02163-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 02/18/2024]
Affiliation(s)
| | - Andreas Agathangelidis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
- Department of Biology, School of Science, National and Kapodistrian University of Athens, Athens, Greece
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Cristina Tresoldi
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Zadie Davis
- Department of Molecular Pathology, University Hospitals Dorset, Bournemouth, UK
| | - Véronique Giudicelli
- International ImMunoGeneTics Information System (IMGT), Institut de Génétique Humaine (IGH), Centre National de la Recherche Scientifique (CNRS), Université de Montpellier, Montpellier, France
| | - Sofia Kossida
- International ImMunoGeneTics Information System (IMGT), Institut de Génétique Humaine (IGH), Centre National de la Recherche Scientifique (CNRS), Université de Montpellier, Montpellier, France
| | | | - Richard Rosenquist
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Paolo Ghia
- Division of Experimental Oncology, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milan, Italy.
| | - Anton W Langerak
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, Rotterdam, The Netherlands
| | - Frédéric Davi
- Department of Hematology, APHP, HôpitalPitié-Salpêtrière and Sorbonne University, Paris, France
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
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Chatzikonstantinou T, Scarfò L, Karakatsoulis G, Minga E, Chamou D, Iacoboni G, Kotaskova J, Demosthenous C, Smolej L, Mulligan S, Alcoceba M, Al-Shemari S, Aurran-Schleinitz T, Bacchiarri F, Bellido M, Bijou F, Calleja A, Medina A, Khan MA, Cassin R, Chatzileontiadou S, Collado R, Christian A, Davis Z, Dimou M, Donaldson D, Santos GD, Dreta B, Efstathopoulou M, El-Ashwah S, Enrico A, Fresa A, Galimberti S, Galitzia A, García-Serra R, Gimeno E, González-Gascón-y-Marín I, Gozzetti A, Guarente V, Guieze R, Gogia A, Gupta R, Harrop S, Hatzimichael E, Herishanu Y, Hernández-Rivas JÁ, Inchiappa L, Jaksic O, Janssen S, Kalicińska E, Kamel L, Karakus V, Kater AP, Kho B, Kislova M, Konstantinou E, Koren-Michowitz M, Kotsianidis I, Kreitman RJ, Labrador J, Lad D, Levin MD, Levy I, Longval T, Lopez-Garcia A, Marquet J, Martin-Rodríguez L, Maynadié M, Maslejova S, Mayor-Bastida C, Mihaljevic B, Milosevic I, Miras F, Moia R, Morawska M, Murru R, Nath UK, Navarro-Bailón A, Oliveira AC, Olivieri J, Oscier D, Panovska-Stavridis I, Papaioannou M, Papajík T, Kubova Z, Phumphukhieo P, Pierie C, Puiggros A, Rani L, Reda G, Rigolin GM, Ruchlemer R, Daniel de Deus Santos M, Schipani M, Schiwitza A, Shen Y, Simkovic M, Smirnova S, Abdelrahman Soliman DS, Spacek M, Tadmor T, Tomic K, Tse E, Vassilakopoulos T, Visentin A, Vitale C, von Tresckow J, Vrachiolias G, Vukovic V, Walewska R, Wasik-Szczepanek E, Xu Z, Yagci M, Yañez L, Yassin M, Zuchnicka J, Angelopoulou M, Antic D, Biderman B, Catherwood M, Claus R, Coscia M, Cuneo A, Demirkan F, Espinet B, Gaidano G, Kalashnikova OB, Laurenti L, Nikitin E, Pangalis GA, Panagiotidis P, Popov VM, Pospisilova S, Sportoletti P, Stavroyianni N, Tam C, Trentin L, Chatzidimitriou A, Bosch F, Doubek M, Ghia P, Stamatopoulos K. Other malignancies in the history of CLL: an international multicenter study conducted by ERIC, the European Research Initiative on CLL, in HARMONY. EClinicalMedicine 2023; 65:102307. [PMID: 38033506 PMCID: PMC10685149 DOI: 10.1016/j.eclinm.2023.102307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/19/2023] [Accepted: 10/25/2023] [Indexed: 12/02/2023] Open
Abstract
Background Patients with chronic lymphocytic leukemia (CLL) have a higher risk of developing other malignancies (OMs) compared to the general population. However, the impact of CLL-related risk factors and CLL-directed treatment is still unclear and represents the focus of this work. Methods We conducted a retrospective international multicenter study to assess the incidence of OMs and detect potential risk factors in 19,705 patients with CLL, small lymphocytic lymphoma, or high-count CLL-like monoclonal B-cell lymphocytosis, diagnosed between 2000 and 2016. Data collection took place between October 2020 and March 2022. Findings In 129,254 years of follow-up after CLL diagnosis, 3513 OMs were diagnosed (27.2 OMs/1000 person-years). The most common hematological OMs were Richter transformation, myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). Non-melanoma skin (NMSC) and prostate cancers were the most common solid tumors (STs).The only predictor for MDS and AML development was treatment with fludarabine and cyclophosphamide with/without rituximab (FC ± R) (OR = 3.7; 95% CI = 2.79-4.91; p < 0.001). STs were more frequent in males and patients with unmutated immunoglobulin heavy variable genes (OR = 1.77; 95% CI = 1.49-2.11; p < 0.001/OR = 1.89; 95% CI = 1.6-2.24; p < 0.001).CLL-directed treatment was associated with non-melanoma skin and prostate cancers (OR = 1.8; 95% CI = 1.36-2.41; p < 0.001/OR = 2.11; 95% CI = 1.12-3.97; p = 0.021). In contrast, breast cancers were more frequent in untreated patients (OR = 0.17; 95% CI = 0.08-0.33; p < 0.001).Patients with CLL and an OM had inferior overall survival (OS) than those without. AML and MDS conferred the worst OS (p < 0.001). Interpretation OMs in CLL impact on OS. Treatment for CLL increased the risk for AML/MDS, prostate cancer, and NMSC. FCR was associated with increased risk for AML/MDS. Funding AbbVie, and EU/EFPIAInnovative Medicines Initiative Joint Undertaking HARMONY grant n° 116026.
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Affiliation(s)
| | - Lydia Scarfò
- Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milan, Italy
| | - Georgios Karakatsoulis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
- Department of Mathematics, University of Ioannina, Ioannina, Greece
| | - Eva Minga
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Dimitra Chamou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Gloria Iacoboni
- Department of Haematology, University Hospital Vall d'Hebron, Autonomous University, Barcelona, Spain
| | - Jana Kotaskova
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
- Department of Internal Medicine - Hematology and Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | | | - Lukas Smolej
- 4th Department of Internal Medicine-Haematology, University Hospital and Faculty of Medicine, Hradec Králové, Czech Republic
| | | | - Miguel Alcoceba
- Department of Haematology, University Hospital of Salamanca (HUS-IBSAL), CIBERONC (CB16/12/00233) and Cancer Research Centre (CIC-IBMCC, USAL-CSIC), Salamanca, Spain
| | - Salem Al-Shemari
- Faculty of Medicine, Department of Medicine, Kuwait University, Kuwait City, Kuwait
| | | | | | - Mar Bellido
- Hematology Department, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | | - Anne Calleja
- Department of Hemato-Oncology, Institut Paoli Calmettes, Marseille, France
| | | | - Mehreen Ali Khan
- Department of Hematology and Stem Cell Transplant, Armed Forces Bone Marrow Transplant Center/National Institute of Blood and Marrow Transplant, Rawalpindi, Pakistan
| | - Ramona Cassin
- Hematology Unit, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico of Milan, Milan, Italy
| | - Sofia Chatzileontiadou
- Hematology Unit, 1st Dept of Internal Medicine, AUTH, AHEPA Hospital, Thessaloniki, Greece
| | - Rosa Collado
- Servicio de Hematología, Consorcio Hospital General Universitario de Valencia, Fundación de Investigación Hospital General Universitario de Valencia, Valencia, Spain
| | - Amy Christian
- Department of Haematology, Royal Bournemouth Hospital, Bournemouth, United Kingdom
| | - Zadie Davis
- Department of Haematology, Royal Bournemouth Hospital, Bournemouth, United Kingdom
| | - Maria Dimou
- Department of Hematology and Bone Marrow Transplantation Unit, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece
| | - David Donaldson
- Clinical Haematology, Belfast City Hospital, Belfast, United Kingdom
| | | | - Barbara Dreta
- Division of Hematology, Department of Internal Medicine, University Hospital Center Zagreb, Zagreb, Croatia
| | - Maria Efstathopoulou
- Department of Haematology, Athens Medical Center-Psychikon Branch, Athens, Greece
| | | | | | - Alberto Fresa
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Sara Galimberti
- Section of Hematology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Andrea Galitzia
- Hematology and Stem Cell Transplantation Unit, Ospedale Oncologico A. Businco, ARNAS "G. Brotzu", Cagliari, Italy
| | - Rocío García-Serra
- Servicio de Hematología, Consorcio Hospital General Universitario de Valencia, Fundación de Investigación Hospital General Universitario de Valencia, Valencia, Spain
| | - Eva Gimeno
- Department of Hematology, Hospital del Mar, Barcelona, Spain
| | | | | | - Valerio Guarente
- Institute of Hematology and Center for Hemato-Oncology Research, University of Perugia and Santa Maria della Misericordia Hospital, Perugia, Italy
| | - Romain Guieze
- Department of Hematology and Cell Therapy, Estaing University Hospital, Clermont-Ferrand, France
| | - Ajay Gogia
- Laboratory Oncology Unit, Dr. B.R.A. IRCH, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Ritu Gupta
- Laboratory Oncology Unit, Dr. B.R.A. IRCH, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Sean Harrop
- Peter MacCallum Cancer Centre, St Vincent's Hospital, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Eleftheria Hatzimichael
- Faculty of Medicine, Department of Haematology, School of Health Sciences, University of Ioannina, Stavros Niarchos Avenue, Ioannina 45110, Greece
| | - Yair Herishanu
- Department of Hematology, Tel Aviv Sourasky Medical Center and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | | | - Luca Inchiappa
- Department of Hemato-Oncology, Institut Paoli Calmettes, Marseille, France
| | - Ozren Jaksic
- Department of Hematology, University Hospital Dubrava, Zagreb, Croatia
| | - Susanne Janssen
- Dept of Hematology, Cancer Center Amsterdam, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Elżbieta Kalicińska
- Department and Clinic of Hematology, Blood Neoplasms and Bone Marrow Transplantation Wroclaw Medical University, Wroclaw, Poland
| | - Laribi Kamel
- Department of Hematology, Centre Hospitalier Le Mans, Le Mans, France
| | | | - Arnon P. Kater
- Dept of Hematology, Cancer Center Amsterdam, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Bonnie Kho
- Department of Medicine, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong, China
| | - Maria Kislova
- Department of Hematology, Oncology, and Chemotherapy, S. P. Botkin's City Hospital, Moscow, Russia
| | | | - Maya Koren-Michowitz
- Department of Hematology, Shamir Medical Center, Zerifin, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel-Aviv, Israel
| | - Ioannis Kotsianidis
- Department of Hematology, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece
| | - Robert J. Kreitman
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jorge Labrador
- Department of Hematology, Hospital Universitario de Burgos, Burgos, Spain
| | - Deepesh Lad
- Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Mark-David Levin
- Department of Internal Medicine, Albert Schweitzer Hospital, Dordrecht, the Netherlands
| | - Ilana Levy
- Hematology, Bnai-Zion Medical Center, Haifa, Israel
| | - Thomas Longval
- Service d'Hématologie Oncologie, Centre Hospitalier de Versailles, Le Chesnay, France
| | - Alberto Lopez-Garcia
- Fundacion Jimenez Diaz University Hospital, Health Research Institute IIS-FJD, Madrid, Spain
| | - Juan Marquet
- Hematology Department, Ramón y Cajal University Hospital, Madrid, Spain
| | - Lucia Martin-Rodríguez
- Department of Haematology, University Hospital Vall d'Hebron, Autonomous University, Barcelona, Spain
| | - Marc Maynadié
- Biological Haematology Department, Dijon Bourgogne University Hospital, Haematological Malignancies Registry, LNC UMR 1231, Dijon 21000, France
| | - Stanislava Maslejova
- Department of Internal Medicine - Hematology and Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | | | - Biljana Mihaljevic
- Clinic for Hematology, University Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivana Milosevic
- Faculty of Medicine, Clinical Centre of Vojvodina, University of Novi Sad, Novi Sad, Serbia
| | - Fatima Miras
- Hematology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Riccardo Moia
- Division of Hematology, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy
| | - Marta Morawska
- Experimental Hematooncology Department, Medical University of Lublin, Lublin, Poland
- Hematology Department, St. John's Cancer Center, Lublin, Poland
| | - Roberta Murru
- Hematology and Stem Cell Transplantation Unit, Ospedale Oncologico A. Businco, ARNAS "G. Brotzu", Cagliari, Italy
| | - Uttam Kumar Nath
- Department of Medical Oncology & Hematology, All India Institute of Medical Sciences, Rishikesh, India
| | - Almudena Navarro-Bailón
- Department of Haematology, University Hospital of Salamanca (HUS-IBSAL), CIBERONC (CB16/12/00233) and Cancer Research Centre (CIC-IBMCC, USAL-CSIC), Salamanca, Spain
| | - Ana C. Oliveira
- Department of Clinical Hematology, ICO, Hospital Duran i Reynals, IDIBELL, Barcelona, Spain
| | | | - David Oscier
- Department of Haematology, Royal Bournemouth Hospital, Bournemouth, United Kingdom
| | - Irina Panovska-Stavridis
- Medical Faculty, University Clinic of Hematology, University Ss. Cyril and Methodius, Skopje, North Macedonia
| | - Maria Papaioannou
- Hematology Unit, 1st Dept of Internal Medicine, AUTH, AHEPA Hospital, Thessaloniki, Greece
| | - Tomas Papajík
- Faculty of Medicine and Dentistry, Department of Hemato-Oncology, Palacký University and University Hospital Olomouc, Olomouc, Czech Republic
| | - Zuzana Kubova
- Faculty of Medicine and Dentistry, Department of Hemato-Oncology, Palacký University and University Hospital Olomouc, Olomouc, Czech Republic
| | | | - Cheyenne Pierie
- Dept of Hematology, Cancer Center Amsterdam, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Anna Puiggros
- Molecular Cytogenetics Laboratory, Pathology Department, Hospital del Mar and Translational Research on Hematological Neoplasms Group, Hospital del Mar Research Institute (IMIM), Barcelona, Spain
| | - Lata Rani
- Laboratory Oncology Unit, Dr. B.R.A. IRCH, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Gianluigi Reda
- Hematology Unit, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico of Milan, Milan, Italy
| | | | - Rosa Ruchlemer
- Department of Hematology, Shaare-Zedek Medical Center, Affiliated with the Hebrew University Medical School, Jerusalem, Israel
| | | | - Mattia Schipani
- Division of Hematology, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy
| | - Annett Schiwitza
- Hematology and Oncology, Faculty of Medicine, University of Augsburg, Stenglinstrasse 2, Augsburg 86156, Germany
| | - Yandong Shen
- Royal North Shore Hospital, Sydney, NSW, Australia
| | - Martin Simkovic
- 4th Department of Internal Medicine-Haematology, University Hospital and Faculty of Medicine, Hradec Králové, Czech Republic
| | - Svetlana Smirnova
- Consultative Hematology Department with a Day Hospital for Intensive High-Dose Chemotherapy, National Medical Research Center for Hematology, Moscow, Russia
| | | | - Martin Spacek
- First Faculty of Medicine, 1st Department of Medicine - Hematology, Charles University and General Hospital in Prague, Czech Republic
| | - Tamar Tadmor
- Hematology, Bnai-Zion Medical Center, Haifa, Israel
| | - Kristina Tomic
- Clinic for Hematology, University Clinical Center of Serbia, Belgrade, Serbia
| | - Eric Tse
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, China
| | | | - Andrea Visentin
- Hematology and Clinical Immunology Unit, Department of Medicine, University of Padova, Padova, Italy
| | - Candida Vitale
- Division of Hematology, A.O.U. Città della Salute e della Scienza di Torino and Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Julia von Tresckow
- Clinic for Hematology and Stem Cell Transplantation, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - George Vrachiolias
- Department of Hematology, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece
| | - Vojin Vukovic
- Clinic for Hematology, University Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Renata Walewska
- Department of Haematology, Royal Bournemouth Hospital, Bournemouth, United Kingdom
| | - Ewa Wasik-Szczepanek
- Dept. Hematooncology and Bone Marrow Transplantation, Medical University in Lublin, Lublin, Poland
| | - Zhenshu Xu
- Fujian Provincial Key Laboratory of Hematology, Fujian Institute of Hematology, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Munci Yagci
- Gazi University Medical Faculty, Ankara, Turkey
| | - Lucrecia Yañez
- Department of Hematology, University Hospital Marqués de Valdecilla, Santander, Spain
- Department of Hematological Malignancies and Stem Cell Transplantation, Research Institute of Marques de Valdecilla (IDIVAL), Santander, Spain
| | - Mohamed Yassin
- Hematology Section, Department of Medical Oncology, National Center for Cancer Care and Research, Doha, Qatar
| | - Jana Zuchnicka
- Department of Haematooncology, University Hospital Ostrava, Ostrava, Czech Republic
| | - Maria Angelopoulou
- Haematology, University of Athens, Laikon General Hospital, Athens, Greece
| | - Darko Antic
- Clinic for Hematology, University Clinical Center of Serbia, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Bella Biderman
- Department of Molecular Hematology, National Medical Research Center for Hematology, Moscow, Russia
| | - Mark Catherwood
- Clinical Haematology, Belfast City Hospital, Belfast, United Kingdom
| | - Rainer Claus
- Pathology, Faculty of Medicine, University of Augsburg, Stenglinstrasse 2, Augsburg 86156, Germany
- Faculty of Medicine, Comprehensive Cancer Center Augsburg, University of Augsburg, Stenglinstrasse 2, Augsburg 86156, Germany
| | - Marta Coscia
- Division of Hematology, A.O.U. Città della Salute e della Scienza di Torino and Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | | | - Fatih Demirkan
- Division of Hematology, Dokuz Eylul University, Izmir, Turkey
| | - Blanca Espinet
- Molecular Cytogenetics Laboratory, Pathology Department, Hospital del Mar and Translational Research on Hematological Neoplasms Group, Hospital del Mar Research Institute (IMIM), Barcelona, Spain
| | - Gianluca Gaidano
- Division of Hematology, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy
| | - Olga B. Kalashnikova
- Federal State Budgetary Educational Institution of Higher Education Academician I.P. Pavlov First St. Petersburg State Medical University of the Ministry of Healthcare of Russian Federation, St. Petersburg, Russia
| | - Luca Laurenti
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Eugene Nikitin
- Department of Hematology, Oncology, and Chemotherapy, S. P. Botkin's City Hospital, Moscow, Russia
| | | | - Panagiotis Panagiotidis
- Department of Hematology and Bone Marrow Transplantation Unit, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece
| | - Viola Maria Popov
- Hematology Department, Colentina Clinical Hospital, Bucharest, Romania
| | - Sarka Pospisilova
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
- Department of Internal Medicine - Hematology and Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Paolo Sportoletti
- Institute of Hematology and Center for Hemato-Oncology Research, University of Perugia and Santa Maria della Misericordia Hospital, Perugia, Italy
| | - Niki Stavroyianni
- Hematology Department and HCT Unit, G. Papanicolaou Hospital, Thessaloniki, Greece
| | - Constantine Tam
- Peter MacCallum Cancer Centre, St Vincent's Hospital, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Livio Trentin
- Hematology and Clinical Immunology Unit, Department of Medicine, University of Padova, Padova, Italy
| | | | - Francesc Bosch
- Department of Haematology, University Hospital Vall d'Hebron, Autonomous University, Barcelona, Spain
| | - Michael Doubek
- Central European Institute of Technology (CEITEC), Masaryk University, Brno, Czech Republic
- Department of Internal Medicine - Hematology and Oncology, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Paolo Ghia
- Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milan, Italy
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
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Iatrou A, Gounari M, Sofou E, Zaragoza-Infante L, Markopoulos I, Sarrigeorgiou I, Petrakis G, Pechlivanis N, Roumeliotou-Dimou M, Panayiotidis P, Stamatopoulos B, Gkanidou M, Sandaltzopoulos R, Degano M, Koletsa T, Lymberi P, Psomopoulos F, Ghia P, Agathangelidis A, Chatzidimitriou A, Stamatopoulos K. N-Glycosylation of the Ig Receptors Shapes the Antigen Reactivity in Chronic Lymphocytic Leukemia Subset #201. J Immunol 2023; 211:743-754. [PMID: 37466373 DOI: 10.4049/jimmunol.2300330] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/04/2023] [Indexed: 07/20/2023]
Abstract
Subset #201 is a clinically indolent subgroup of patients with chronic lymphocytic leukemia defined by the expression of stereotyped, mutated IGHV4-34/IGLV1-44 BCR Ig. Subset #201 is characterized by recurrent somatic hypermutations (SHMs) that frequently lead to the creation and/or disruption of N-glycosylation sites within the Ig H and L chain variable domains. To understand the relevance of this observation, using next-generation sequencing, we studied how SHM shapes the subclonal architecture of the BCR Ig repertoire in subset #201, particularly focusing on changes in N-glycosylation sites. Moreover, we profiled the Ag reactivity of the clonotypic BCR Ig expressed as rmAbs. We found that almost all analyzed cases from subset #201 carry SHMs potentially affecting N-glycosylation at the clonal and/or subclonal level and obtained evidence for N-glycan occupancy in SHM-induced novel N-glycosylation sites. These particular SHMs impact (auto)antigen recognition, as indicated by differences in Ag reactivity between the authentic rmAbs and germline revertants of SHMs introducing novel N-glycosylation sites in experiments entailing 1) flow cytometry for binding to viable cells, 2) immunohistochemistry against various human tissues, 3) ELISA against microbial Ags, and 4) protein microarrays testing reactivity against multiple autoantigens. On these grounds, N-glycosylation appears as relevant for the natural history of at least a fraction of Ig-mutated chronic lymphocytic leukemia. Moreover, subset #201 emerges as a paradigmatic case for the role of affinity maturation in the evolution of Ag reactivity of the clonotypic BCR Ig.
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Affiliation(s)
- Anastasia Iatrou
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Maria Gounari
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Electra Sofou
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Laura Zaragoza-Infante
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Ioannis Markopoulos
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Ioannis Sarrigeorgiou
- Immunology Laboratory, Immunology Department, Hellenic Pasteur Institute, Athens, Greece
| | - Georgios Petrakis
- Pathology Department, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikolaos Pechlivanis
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Maria Roumeliotou-Dimou
- Hematology Section of the First Department of Propedeutic Internal Medicine, Laikon University Hospital, Athens, Greece
| | - Panagiotis Panayiotidis
- Hematology Section of the First Department of Propedeutic Internal Medicine, Laikon University Hospital, Athens, Greece
| | - Basile Stamatopoulos
- Laboratory of Clinical Cell Therapy, Jules Bordet Institute, Free University of Brussels, Brussels, Belgium
| | - Maria Gkanidou
- Blood Transfusion Department, G. Papanikolaou Hospital, Thessaloniki, Greece
| | - Rafael Sandaltzopoulos
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Massimo Degano
- Biocrystallography Unit, Division of Immunology, Transplantation, and Infectious Diseases, IRCCS Scientific Institute San Raffaele, Milan, Italy
| | - Triantafyllia Koletsa
- Pathology Department, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Peggy Lymberi
- Immunology Laboratory, Immunology Department, Hellenic Pasteur Institute, Athens, Greece
| | - Fotis Psomopoulos
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Paolo Ghia
- Division of Experimental Oncology, IRCCS Scientific Institute San Raffaele, Milan, Italy
| | - Andreas Agathangelidis
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
- Department of Biology, School of Science, National and Kapodistrian University of Athens, Athens, Greece
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
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4
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Vlachonikola E, Langerak AW, Rosenquist R, Chatzidimitriou A. Editorial: The promise of immunogenetics for precision oncology. Front Oncol 2023; 13:1252189. [PMID: 37621683 PMCID: PMC10445970 DOI: 10.3389/fonc.2023.1252189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 07/24/2023] [Indexed: 08/26/2023] Open
Affiliation(s)
- Elisavet Vlachonikola
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Anton W. Langerak
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, Rotterdam, Netherlands
| | - Richard Rosenquist
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Clinical Genetics, Karolinska University Hospital, Solna, Sweden
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
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5
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Assmann JL, Vlachonikola E, Kolijn PM, Agathangelidis A, Pechlivanis N, Papalexandri A, Stamatopoulos K, Chatzidimitriou A, Langerak AW. Context-dependent T-cell Receptor Gene Repertoire Profiles in Proliferations of T Large Granular Lymphocytes. Hemasphere 2023; 7:e929. [PMID: 37469801 PMCID: PMC10353713 DOI: 10.1097/hs9.0000000000000929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 06/12/2023] [Indexed: 07/21/2023] Open
Abstract
T cell large granular lymphocyte (T-LGL) lymphoproliferations constitute a disease spectrum ranging from poly/oligo to monoclonal. Boundaries within this spectrum of proliferations are not well established. T-LGL lymphoproliferations co-occur with a wide variety of other diseases ranging from autoimmune disorders, solid tumors, hematological malignancies, post solid organ, and hematopoietic stem cell transplantation, and can therefore arise as a consequence of a wide variety of antigenic triggers. Persistence of a dominant malignant T-LGL clone is established through continuous STAT3 activation. Using next-generation sequencing, we profiled a cohort of 27 well-established patients with T-LGL lymphoproliferations, aiming to identify the subclonal architecture of the T-cell receptor beta (TRB) chain gene repertoire. Moreover, we searched for associations between TRB gene repertoire patterns and clinical manifestations, with the ultimate objective of discriminating between T-LGL lymphoproliferations developing in different clinical contexts and/or displaying distinct clinical presentation. Altogether, our data demonstrates that the TRB gene repertoire of patients with T-LGL lymphoproliferations is context-dependent, displaying distinct clonal architectures in different settings. Our results also highlight that there are monoclonal T-LGL cells with or without STAT3 mutations that cause symptoms such as neutropenia on one end of a spectrum and reactive oligoclonal T-LGL lymphoproliferations on the other. Longitudinal analysis revealed temporal clonal dynamics and showed that T-LGL cells might arise as an epiphenomenon when co-occurring with other malignancies, possibly reactive toward tumor antigens.
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Affiliation(s)
- Jorn L.J.C. Assmann
- Laboratory for Medical Immunology, Department of Immunology, Erasmus MC, Rotterdam, Netherlands
| | | | - Pieter M. Kolijn
- Laboratory for Medical Immunology, Department of Immunology, Erasmus MC, Rotterdam, Netherlands
| | | | - Nikolaos Pechlivanis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Greece
| | | | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Greece
| | | | - Anton W. Langerak
- Laboratory for Medical Immunology, Department of Immunology, Erasmus MC, Rotterdam, Netherlands
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6
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Tsagiopoulou M, Chapaprieta V, Russiñol N, García-Torre B, Pechlivanis N, Nadeu F, Papakonstantinou N, Stavroyianni N, Chatzidimitriou A, Psomopoulos F, Campo E, Stamatopoulos K, Martín-Subero JI. Chromatin activation profiling of stereotyped chronic lymphocytic leukemias reveals a subset 8-specific signature. Blood 2023; 141:2955-2960. [PMID: 36989492 DOI: 10.1182/blood.2022016587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 02/17/2023] [Accepted: 03/02/2023] [Indexed: 03/31/2023] Open
Abstract
The chromatin activation landscape of chronic lymphocytic leukemia (CLL) with stereotyped B-cell receptor immunoglobulin is currently unknown. In this study, we report the results of a whole-genome chromatin profiling of histone 3 lysine 27 acetylation of 22 CLLs from major subsets, which were compared against nonstereotyped CLLs and normal B-cell subpopulations. Although subsets 1, 2, and 4 did not differ much from their nonstereotyped CLL counterparts, subset 8 displayed a remarkably distinct chromatin activation profile. In particular, we identified 209 de novo active regulatory elements in this subset, which showed similar patterns with U-CLLs undergoing Richter transformation. These regions were enriched for binding sites of 9 overexpressed transcription factors. In 78 of 209 regions, we identified 113 candidate overexpressed target genes, 11 regions being associated with more than 2 adjacent genes. These included blocks of up to 7 genes, suggesting local coupregulation within the same genome compartment. Our findings further underscore the uniqueness of subset 8 CLL, notable for the highest risk of Richter's transformation among all CLLs and provide additional clues to decipher the molecular basis of its clinical behavior.
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Affiliation(s)
- Maria Tsagiopoulou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
- Centro Nacional de Análisis Genómico, Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Vicente Chapaprieta
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
| | - Nuria Russiñol
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
| | - Beatriz García-Torre
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
| | - Nikolaos Pechlivanis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Ferran Nadeu
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, Spain
| | - Nikos Papakonstantinou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Niki Stavroyianni
- Hematology Department and HCT Unit, G. Papanicolaou Hospital, Thessaloniki, Greece
| | | | - Fotis Psomopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Elías Campo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, Spain
- Departamento de Fundamentos Clínicos, Universitat de Barcelona, Barcelona, Spain
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - José Ignacio Martín-Subero
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, Spain
- Departamento de Fundamentos Clínicos, Universitat de Barcelona, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
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7
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Meletis G, Tychala A, Ntritsos G, Verrou E, Savvidou F, Dermitzakis I, Chatzidimitriou A, Gkeka I, Fyntanidou B, Gkarmiri S, Tzallas AT, Protonotariou E, Makedou K, Tsalikakis DG, Skoura L. Variant-Related Differences in Laboratory Biomarkers among Patients Affected with Alpha, Delta and Omicron: A Retrospective Whole Viral Genome Sequencing and Hospital-Setting Cohort Study. Biomedicines 2023; 11:biomedicines11041143. [PMID: 37189760 DOI: 10.3390/biomedicines11041143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/04/2023] [Accepted: 04/07/2023] [Indexed: 05/17/2023] Open
Abstract
During the COVID-19 pandemic, different SARS-CoV-2 variants of concern (VOC) with specific characteristics have emerged and spread worldwide. At the same time, clinicians routinely evaluate the results of certain blood tests upon patient admission as well as during hospitalization to assess disease severity and the overall patient status. In the present study, we searched for significant cell blood count and biomarker differences among patients affected with the Alpha, Delta and Omicron VOCs at admission. Data from 330 patients were retrieved regarding age, gender, VOC, cell blood count results (WBC, Neut%, Lymph%, Ig%, PLT), common biomarkers (D-dimers, urea, creatinine, SGOT, SGPT, CRP, IL-6, suPAR), ICU admission and death. Statistical analyses were performed using ANOVA, the Kruskal-Wallis test, two-way ANOVA, Chi-square, T-test, the Mann-Whitney test and logistic regression was performed where appropriate using SPSS v.28 and STATA 14. Age and VOC were significantly associated with hospitalization, whereas significant differences among VOC groups were found for WBC, PLT, Neut%, IL-6, creatinine, CRP, D-dimers and suPAR. Our analyses showed that throughout the current pandemic, not only the SARS-CoV-2 VOCs but also the laboratory parameters that are used to evaluate the patient's status at admission are subject to changes.
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Affiliation(s)
- Georgios Meletis
- Department of Microbiology, AHEPA University Hospital, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Areti Tychala
- Department of Microbiology, AHEPA University Hospital, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Georgios Ntritsos
- Department of Informatics and Telecommunications, School of Informatics and Telecommunications, University of Ioannina, 47100 Arta, Greece
- Department of Hygiene and Epidemiology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece
| | - Eleni Verrou
- School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Filio Savvidou
- School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Iasonas Dermitzakis
- School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Anastasia Chatzidimitriou
- Institute of Applied Bioscience, Centre for Research and Technology Hellas, 6th km Charilaou-Thermi Rd., Thermi, 57001 Thessaloniki, Greece
| | - Ioanna Gkeka
- Department of Microbiology, AHEPA University Hospital, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Barbara Fyntanidou
- Department of Emergency Medicine, AHEPA University Hospital, 54636 Thessaloniki, Greece
| | - Sofia Gkarmiri
- Department of Emergency Medicine, AHEPA University Hospital, 54636 Thessaloniki, Greece
| | - Alexandros T Tzallas
- Department of Informatics and Telecommunications, School of Informatics and Telecommunications, University of Ioannina, 47100 Arta, Greece
| | - Efthymia Protonotariou
- Department of Microbiology, AHEPA University Hospital, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Kali Makedou
- Laboratory of Biochemistry, AHEPA University Hospital, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Dimitrios G Tsalikakis
- Department of Electrical and Computer Engineering, University of Western Macedonia, 50131 Kozani, Greece
| | - Lemonia Skoura
- Department of Microbiology, AHEPA University Hospital, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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8
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Oder B, Chatzidimitriou A, Langerak AW, Rosenquist R, Österholm C. Recent revelations and future directions using single-cell technologies in chronic lymphocytic leukemia. Front Oncol 2023; 13:1143811. [PMID: 37091144 PMCID: PMC10117666 DOI: 10.3389/fonc.2023.1143811] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/22/2023] [Indexed: 04/08/2023] Open
Abstract
Chronic lymphocytic leukemia (CLL) is a clinically and biologically heterogeneous disease with varying outcomes. In the last decade, the application of next-generation sequencing technologies has allowed extensive mapping of disease-specific genomic, epigenomic, immunogenetic, and transcriptomic signatures linked to CLL pathogenesis. These technologies have improved our understanding of the impact of tumor heterogeneity and evolution on disease outcome, although they have mostly been performed on bulk preparations of nucleic acids. As a further development, new technologies have emerged in recent years that allow high-resolution mapping at the single-cell level. These include single-cell RNA sequencing for assessment of the transcriptome, both of leukemic and non-malignant cells in the tumor microenvironment; immunogenetic profiling of B and T cell receptor rearrangements; single-cell sequencing methods for investigation of methylation and chromatin accessibility across the genome; and targeted single-cell DNA sequencing for analysis of copy-number alterations and single nucleotide variants. In addition, concomitant profiling of cellular subpopulations, based on protein expression, can also be obtained by various antibody-based approaches. In this review, we discuss different single-cell sequencing technologies and how they have been applied so far to study CLL onset and progression, also in response to treatment. This latter aspect is particularly relevant considering that we are moving away from chemoimmunotherapy to targeted therapies, with a potentially distinct impact on clonal dynamics. We also discuss new possibilities, such as integrative multi-omics analysis, as well as inherent limitations of the different single-cell technologies, from sample preparation to data interpretation using available bioinformatic pipelines. Finally, we discuss future directions in this rapidly evolving field.
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Affiliation(s)
- Blaž Oder
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Anastasia Chatzidimitriou
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Anton W. Langerak
- Department of Immunology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Richard Rosenquist
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Cecilia Österholm
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- *Correspondence: Cecilia Österholm,
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9
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Vlachonikola E, Pechlivanis N, Karakatsoulis G, Sofou E, Gkoliou G, Jeromin S, Stavroyianni N, Ranghetti P, Scarfo L, Österholm C, Mansouri L, Notopoulou S, Siorenta A, Anagnostopoulos A, Ghia P, Haferlach C, Rosenquist R, Psomopoulos F, Kouvatsi A, Baliakas P, Stamatopoulos K, Chatzidimitriou A. T cell receptor gene repertoire profiles in subgroups of patients with chronic lymphocytic leukemia bearing distinct genomic aberrations. Front Oncol 2023; 13:1097942. [PMID: 36816924 PMCID: PMC9929157 DOI: 10.3389/fonc.2023.1097942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/17/2023] [Indexed: 02/05/2023] Open
Abstract
Background Microenvironmental interactions of the malignant clone with T cells are critical throughout the natural history of chronic lymphocytic leukemia (CLL). Indeed, clonal expansions of T cells and shared clonotypes exist between different CLL patients, strongly implying clonal selection by antigens. Moreover, immunogenic neoepitopes have been isolated from the clonotypic B cell receptor immunoglobulin sequences, offering a rationale for immunotherapeutic approaches. Here, we interrogated the T cell receptor (TR) gene repertoire of CLL patients with different genomic aberration profiles aiming to identify unique signatures that would point towards an additional source of immunogenic neoepitopes for T cells. Experimental design TR gene repertoire profiling using next generation sequencing in groups of patients with CLL carrying one of the following copy-number aberrations (CNAs): del(11q), del(17p), del(13q), trisomy 12, or gene mutations in TP53 or NOTCH1. Results Oligoclonal expansions were found in all patients with distinct recurrent genomic aberrations; these were more pronounced in cases bearing CNAs, particularly trisomy 12, rather than gene mutations. Shared clonotypes were found both within and across groups, which appeared to be CLL-biased based on extensive comparisons against TR databases from various entities. Moreover, in silico analysis identified TR clonotypes with high binding affinity to neoepitopes predicted to arise from TP53 and NOTCH1 mutations. Conclusions Distinct TR repertoire profiles were identified in groups of patients with CLL bearing different genomic aberrations, alluding to distinct selection processes. Abnormal protein expression and gene dosage effects associated with recurrent genomic aberrations likely represent a relevant source of CLL-specific selecting antigens.
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Affiliation(s)
- Elisavet Vlachonikola
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece,Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle, University of Thessaloniki, Thessaloniki, Greece
| | - Nikolaos Pechlivanis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece,Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle, University of Thessaloniki, Thessaloniki, Greece
| | - Georgios Karakatsoulis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece,Department of Mathematics, School of Sciences, University of Ioannina, Ioannina, Greece
| | - Electra Sofou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece,Laboratory of Biological Chemistry, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Glykeria Gkoliou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece,Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - Niki Stavroyianni
- Hematology Department and Hematopoietic Cell Transplantation (HCT) Unit, G. Papanicolaou Hospital, Thessaloniki, Greece
| | - Pamela Ranghetti
- Division of Experimental Oncology, Università Vita-Salute San Raffaele and Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Ospedale San Raffaele, Milan, Italy
| | - Lydia Scarfo
- Division of Experimental Oncology, Università Vita-Salute San Raffaele and Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Ospedale San Raffaele, Milan, Italy
| | - Cecilia Österholm
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Larry Mansouri
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Sofia Notopoulou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Alexandra Siorenta
- Immunology Department and National Tissue Typing Center, General Hospital of Athens “G. Gennimatas”, Athens, Greece
| | - Achilles Anagnostopoulos
- Hematology Department and Hematopoietic Cell Transplantation (HCT) Unit, G. Papanicolaou Hospital, Thessaloniki, Greece
| | - Paolo Ghia
- Division of Experimental Oncology, Università Vita-Salute San Raffaele and Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Ospedale San Raffaele, Milan, Italy
| | | | - Richard Rosenquist
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden,Clinical Genetics, Karolinska University Hospital, Solna, Sweden
| | - Fotis Psomopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Anastasia Kouvatsi
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle, University of Thessaloniki, Thessaloniki, Greece
| | - Panagiotis Baliakas
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden,*Correspondence: Anastasia Chatzidimitriou,
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10
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Sofou E, Zaragoza-Infante L, Pechlivanis N, Karakatsoulis G, Notopoulou S, Stavroyianni N, Psomopoulos F, Georgiou E, de Septenville AL, Davi F, Agathangelidis A, Chatzidimitriou A, Stamatopoulos K. Evidence of somatic hypermutation in the antigen binding sites of patients with CLL harboring IGHV genes with 100% germline identity. Front Oncol 2022; 12:1079772. [PMID: 36591518 PMCID: PMC9795043 DOI: 10.3389/fonc.2022.1079772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022] Open
Abstract
Classification of patients with chronic lymphocytic leukemia (CLL) based on the somatic hypermutation (SHM) status of the clonotypic immunoglobulin heavy variable (IGHV) gene has established predictive and prognostic relevance. The SHM status is assessed based on the number of mutations within the IG heavy variable domain sequence, albeit only over the rearranged IGHV gene excluding the variable heavy complementarity determining region 3 (VH CDR3). This may lead to an underestimation of the actual impact of SHM, in fact overlooking the most critical region for antigen-antibody interactions, i.e. the VH CDR3. Here we investigated whether SHM may be present within the VH CDR3 of cases bearing 'truly unmutated' IGHV genes (i.e. 100% germline identity across VH FR1-VH FR3) employing Next Generation Sequencing. We studied 16 patients bearing a 'truly unmutated' CLL clone assigned to stereotyped subsets #1 (n=12) and #6 (n=4). We report the existence of SHM within the germline-encoded 3'IGHV, IGHD, 5'IGHJ regions of the VH CDR3 in both the main IGHV-IGHD-IGHJ gene clonotype and its variants. Recurrent somatic mutations were identified between different patients of the same subset, supporting the notion that they represent true mutational events rather than technical artefacts; moreover, they were located adjacent to/within AID hotspots, pointing to SHM as the underlying mechanism. In conclusion, we provide immunogenetic evidence for intra-VH CDR3 variations, attributed to SHM, in CLL patients carrying 'truly unmutated' IGHV genes. Although the clinical implications of this observation remain to be defined, our findings offer a new perspective into the immunobiology of CLL, alluding to the operation of VH CDR3-restricted SHM in U-CLL.
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Affiliation(s)
- Electra Sofou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece,Laboratory of Biological Chemistry, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Laura Zaragoza-Infante
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Nikolaos Pechlivanis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Georgios Karakatsoulis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Sofia Notopoulou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Niki Stavroyianni
- Hematology Department and HCT Unit, G. Papanicolaou Hospital, Thessaloniki, Greece
| | - Fotis Psomopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Elisavet Georgiou
- Laboratory of Biological Chemistry, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Frederic Davi
- Department of Hematology, APHP, Hôpital Pitié-Salpêtrière and Sorbonne University, Paris, France
| | - Andreas Agathangelidis
- Department of Biology, School of Science, National and Kapodistrian University of Athens, Athens, Greece
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece,Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece,Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden,*Correspondence: Kostas Stamatopoulos,
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11
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Zaragoza-Infante L, Junet V, Pechlivanis N, Fragkouli SC, Amprachamian S, Koletsa T, Chatzidimitriou A, Papaioannou M, Stamatopoulos K, Agathangelidis A, Psomopoulos F. IgIDivA: immunoglobulin intraclonal diversification analysis. Brief Bioinform 2022; 23:6679272. [PMID: 36044248 PMCID: PMC9487589 DOI: 10.1093/bib/bbac349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 11/14/2022] Open
Abstract
Intraclonal diversification (ID) within the immunoglobulin (IG) genes expressed by B cell clones arises due to ongoing somatic hypermutation (SHM) in a context of continuous interactions with antigen(s). Defining the nature and order of appearance of SHMs in the IG genes can assist in improved understanding of the ID process, shedding light into the ontogeny and evolution of B cell clones in health and disease. Such endeavor is empowered thanks to the introduction of high-throughput sequencing in the study of IG gene repertoires. However, few existing tools allow the identification, quantification and characterization of SHMs related to ID, all of which have limitations in their analysis, highlighting the need for developing a purpose-built tool for the comprehensive analysis of the ID process. In this work, we present the immunoglobulin intraclonal diversification analysis (IgIDivA) tool, a novel methodology for the in-depth qualitative and quantitative analysis of the ID process from high-throughput sequencing data. IgIDivA identifies and characterizes SHMs that occur within the variable domain of the rearranged IG genes and studies in detail the connections between identified SHMs, establishing mutational pathways. Moreover, it combines established and new graph-based metrics for the objective determination of ID level, combined with statistical analysis for the comparison of ID level features for different groups of samples. Of importance, IgIDivA also provides detailed visualizations of ID through the generation of purpose-built graph networks. Beyond the method design, IgIDivA has been also implemented as an R Shiny web application. IgIDivA is freely available at https://bio.tools/igidiva
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Affiliation(s)
- Laura Zaragoza-Infante
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.,Hematology Unit, 1st Dept of Internal Medicine, Aristotle University of Thessaloniki, AHEPA Hospital, Thessaloniki
| | - Valentin Junet
- Anaxomics Biotech SL, Barcelona, Spain.,Institute of Biotechnology and Biomedicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Nikos Pechlivanis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | | | - Serovpe Amprachamian
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | | | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Maria Papaioannou
- Hematology Unit, 1st Dept of Internal Medicine, Aristotle University of Thessaloniki, AHEPA Hospital, Thessaloniki
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Andreas Agathangelidis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.,Faculty of Biology, National and Kapodistrian University of Athens, Athens, Greece
| | - Fotis Psomopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
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12
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Galigalidou C, Zaragoza-Infante L, Chatzidimitriou A, Stamatopoulos K, Psomopoulos F, Agathangelidis A. Purpose-Built Immunoinformatics for BcR IG/TR Repertoire Data Analysis. Methods Mol Biol 2022; 2453:585-603. [PMID: 35622343 DOI: 10.1007/978-1-0716-2115-8_27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The study of antigen receptor gene repertoires using next-generation sequencing (NGS) technologies has disclosed an unprecedented depth of complexity, requiring novel computational and analytical solutions. Several bioinformatics workflows have been developed to this end, including the T-cell receptor/immunoglobulin profiler (TRIP), a web application implemented in R shiny, specifically designed for the purposes of comprehensive repertoire analysis, which is the focus of this chapter. TRIP has the potential to perform robust immunoprofiling analysis through the extraction and processing of the IMGT/HighV-Quest output, via a series of functions, ensuring the analysis of high-quality, biologically relevant data through a multilevel process of data filtering. Subsequently, it provides in-depth analysis of antigen receptor gene rearrangements, including (a) clonality assessment; (b) extraction of variable (V), diversity (D), and joining (J) gene repertoires; (c) CDR3 characterization at both the nucleotide and amino acid level; and (d) somatic hypermutation analysis, in the case of immunoglobulin gene rearrangements. Relevant to mention, TRIP enables a high level of customization through the integration of various options in key aspects of the analysis, such as clonotype definition and computation, hence allowing for flexibility without compromising on accuracy.
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Affiliation(s)
- Chrysi Galigalidou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.,Department of Molecular Biology and Genetics (MBG), Democritus University of Thrace, Alexandroupolis, Greece
| | - Laura Zaragoza-Infante
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.,First Department of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece. .,Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden.
| | - Fotis Psomopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Andreas Agathangelidis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.,Department of Biology, School of Science, National and Kapodistrian University of Athens, Athens, Greece
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13
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Ververi A, Laidou S, Chatzidimitriou A, Gidaris D, Mataftsi A, Kozeis N, Fidani L, Zafeiriou DI. Patient with recurrent mosaic KRAS variant: Rare oculoectodermal syndrome with severe neurologic phenotype. J Dermatol 2022; 49:e381-e382. [PMID: 35593416 DOI: 10.1111/1346-8138.16440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 04/21/2022] [Accepted: 05/02/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Athina Ververi
- Genetic Unit, 1st Department of Obstetrics & Gynaecology, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Thessaloniki, Greece
| | - Stamatia Laidou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | | | - Dimos Gidaris
- University of Nicosia Medical School, Nicosia, Cyprus
| | - Asimina Mataftsi
- 2nd Department of Ophthalmology, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Thessaloniki, Greece
| | - Nikolaos Kozeis
- Ophthalmica Institute of Ophthalmology and Microsurgery, Thessaloniki, Greece
| | - Liana Fidani
- 2nd Department of Pediatrics, Aristotle University of Thessaloniki, AHEPA Hospital, Thessaloniki, Greece.,Department of Medical Biology Genetics, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios Ioannis Zafeiriou
- 1st Department of Pediatrics, Aristotle University of Thessaloniki, Hippokratio General Hospital Thessaloniki, Greece
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14
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Pechlivanis N, Tsagiopoulou M, Maniou MC, Togkousidis A, Mouchtaropoulou E, Chassalevris T, Chaintoutis SC, Petala M, Kostoglou M, Karapantsios T, Laidou S, Vlachonikola E, Chatzidimitriou A, Papadopoulos A, Papaioannou N, Dovas CI, Argiriou A, Psomopoulos F. Detecting SARS-CoV-2 lineages and mutational load in municipal wastewater and a use-case in the metropolitan area of Thessaloniki, Greece. Sci Rep 2022; 12:2659. [PMID: 35177697 PMCID: PMC8854625 DOI: 10.1038/s41598-022-06625-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 01/28/2022] [Indexed: 12/17/2022] Open
Abstract
The COVID-19 pandemic represents an unprecedented global crisis necessitating novel approaches for, amongst others, early detection of emerging variants relating to the evolution and spread of the virus. Recently, the detection of SARS-CoV-2 RNA in wastewater has emerged as a useful tool to monitor the prevalence of the virus in the community. Here, we propose a novel methodology, called lineagespot, for the monitoring of mutations and the detection of SARS-CoV-2 lineages in wastewater samples using next-generation sequencing (NGS). Our proposed method was tested and evaluated using NGS data produced by the sequencing of 14 wastewater samples from the municipality of Thessaloniki, Greece, covering a 6-month period. The results showed the presence of SARS-CoV-2 variants in wastewater data. lineagespot was able to record the evolution and rapid domination of the Alpha variant (B.1.1.7) in the community, and allowed the correlation between the mutations evident through our approach and the mutations observed in patients from the same area and time periods. lineagespot is an open-source tool, implemented in R, and is freely available on GitHub and registered on bio.tools.
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Affiliation(s)
- Nikolaos Pechlivanis
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001, Thessaloníki, Greece.,Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Maria Tsagiopoulou
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001, Thessaloníki, Greece
| | - Maria Christina Maniou
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001, Thessaloníki, Greece
| | - Anastasis Togkousidis
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001, Thessaloníki, Greece
| | - Evangelia Mouchtaropoulou
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001, Thessaloníki, Greece
| | - Taxiarchis Chassalevris
- School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Serafeim C Chaintoutis
- School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Maria Petala
- Department of Civil Engineering, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Margaritis Kostoglou
- Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Thodoris Karapantsios
- Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Stamatia Laidou
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001, Thessaloníki, Greece.,Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Elisavet Vlachonikola
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001, Thessaloníki, Greece.,Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001, Thessaloníki, Greece
| | - Agis Papadopoulos
- EYATH S.A., Thessaloniki Water Supply and Sewerage Company S.A., 54636, Thessaloníki, Greece
| | - Nikolaos Papaioannou
- School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Chrysostomos I Dovas
- School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Anagnostis Argiriou
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001, Thessaloníki, Greece.,Department of Food Science and Nutrition, University of the Aegean, Myrina, 81400, Lemnos, Greece
| | - Fotis Psomopoulos
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, 57001, Thessaloníki, Greece.
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15
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Galigalidou C, Zaragoza-Infante L, Iatrou A, Chatzidimitriou A, Stamatopoulos K, Agathangelidis A. Understanding Monoclonal B Cell Lymphocytosis: An Interplay of Genetic and Microenvironmental Factors. Front Oncol 2021; 11:769612. [PMID: 34858849 PMCID: PMC8631769 DOI: 10.3389/fonc.2021.769612] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/26/2021] [Indexed: 11/13/2022] Open
Abstract
The term monoclonal B-cell lymphocytosis (MBL) describes the presence of a clonal B cell population with a count of less than 5 × 109/L and no symptoms or signs of disease. Based on the B cell count, MBL is further classified into 2 distinct subtypes: 'low-count' and 'high-count' MBL. High-count MBL shares a series of biological and clinical features with chronic lymphocytic leukemia (CLL), at least of the indolent type, and evolves to CLL requiring treatment at a rate of 1-2% per year, whereas 'low-count' MBL seems to be distinct, likely representing an immunological rather than a pre-malignant condition. That notwithstanding, both subtypes of MBL can carry 'CLL-specific' genomic aberrations such as cytogenetic abnormalities and gene mutations, yet to a much lesser extent compared to CLL. These findings suggest that such aberrations are mostly relevant for disease progression rather than disease onset, indirectly pointing to microenvironmental drive as a key contributor to the emergence of MBL. Understanding microenvironmental interactions is therefore anticipated to elucidate MBL ontogeny and, most importantly, the relationship between MBL and CLL.
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Affiliation(s)
- Chrysi Galigalidou
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece.,Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Laura Zaragoza-Infante
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece.,Hematology Department, University General Hospital of Thessaloniki AHEPA, Thessaloniki, Greece
| | - Anastasia Iatrou
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Andreas Agathangelidis
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece.,Department of Biology, School of Science, National and Kapodistrian University of Athens, Athens, Greece
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16
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Theotokis P, Kesidou E, Mitsiadou D, Petratos S, Damianidou O, Boziki M, Chatzidimitriou A, Grigoriadis N. Lumbar spine intrathecal transplantation of neural precursor cells promotes oligodendrocyte proliferation in hot spots of chronic demyelination. Brain Pathol 2021; 32:e13040. [PMID: 34845781 PMCID: PMC9245942 DOI: 10.1111/bpa.13040] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 01/02/2023] Open
Abstract
Experimental autoimmune encephalomyelitis (EAE) is a basic and reliable model used to study clinical and pathological hallmarks of multiple sclerosis (MS) in rodents. Several studies suggest neural precursor cells (NPCs) as a significant research tool while reporting that transplanted NPCs are a promising therapeutic approach to treating neurological disorders, such as MS. The main objective was to approach a preclinical, in vivo scenario of oligodendrogenesis with NPCs, targeting the main chronic demyelinated lumbosacral milieu of EAE, via the least invasive delivery method which is lumbar puncture. We utilized MOG35‐55 peptide to induce EAE in C57BL/6 mice and prior to the acute relapse, we intervened with either the traceable GFP+ cellular therapy or saline solution in the intrathecal space of their lumbar spine. A BrdU injection, which enabled us to monitor endogenous proliferation, marked the endpoint 50 days post‐induction (50 dpi). Neuropathology with high‐throughput, triple immunofluorescent, and transmission electron microscopy (TEM) data were extracted and analyzed. The experimental treatment attenuated the chronic phase of EAE (50 dpi; score <1) following an acute, clinical relapse. Myelination and axonal integrity were rescued in the NPC‐treated animals along with suppressed immune populations. The differentiation profile of the exogenous NPCs and endogenous BrdU+ cells was location‐dependent where GFP+‐rich areas drove undifferentiated phenotypes toward the oligodendrocyte lineage. In situ oligodendrocyte enrichment was demonstrated through increased (p < 0.001) gap junction channels of Cx32 and Cx47, reliable markers for proliferative oligodendroglia syncytium. TEM morphometric analysis ultimately manifested an increased g‐ratio in lumbosacral fibers of the recovered animals (p < 0.001). Herein, we suggest that a single, lumbar intrathecal administration of NPCs capacitated a viable cellular load and resulted in clinical and pathological amelioration, stimulating resident OPCs to overcome the remyelination failure in EAE demyelinating locale.
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Affiliation(s)
- Paschalis Theotokis
- Laboratory of Experimental Neurology and Neuroimmunology, Second Department of Neurology, AHEPA University Hospital, Thessaloniki, Greece
| | - Evangelia Kesidou
- Laboratory of Experimental Neurology and Neuroimmunology, Second Department of Neurology, AHEPA University Hospital, Thessaloniki, Greece
| | - Dimitra Mitsiadou
- Laboratory of Experimental Neurology and Neuroimmunology, Second Department of Neurology, AHEPA University Hospital, Thessaloniki, Greece
| | - Steven Petratos
- Department of Neuroscience, Central Clinical School, Monash University, Prahran, Victoria, Australia
| | - Olympia Damianidou
- Laboratory of Experimental Neurology and Neuroimmunology, Second Department of Neurology, AHEPA University Hospital, Thessaloniki, Greece
| | - Marina Boziki
- Laboratory of Experimental Neurology and Neuroimmunology, Second Department of Neurology, AHEPA University Hospital, Thessaloniki, Greece
| | | | - Nikolaos Grigoriadis
- Laboratory of Experimental Neurology and Neuroimmunology, Second Department of Neurology, AHEPA University Hospital, Thessaloniki, Greece.,Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
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17
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Gerousi M, Laidou S, Gemenetzi K, Stamatopoulos K, Chatzidimitriou A. Distinctive Signaling Profiles With Distinct Biological and Clinical Implications in Aggressive CLL Subsets With Stereotyped B-Cell Receptor Immunoglobulin. Front Oncol 2021; 11:771454. [PMID: 34804974 PMCID: PMC8595110 DOI: 10.3389/fonc.2021.771454] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/15/2021] [Indexed: 11/13/2022] Open
Abstract
The ontogeny and evolution of chronic lymphocytic leukemia (CLL) are critically dependent on interactions between leukemic cells and their microenvironment, including antigens, the latter recognized through the clonotypic B-cell receptor immunoglobulin (BcR IG). Antigen selection is key to the pathogenesis of CLL, as evidenced by the remarkable skewing of the BcR IG gene repertoire, culminating in BcR IG stereotypy, referring to the existence of subsets of patients with (quasi)identical BcR IG. Notably, certain of these subsets have been found to display distinct, subset-biased biological background, clinical presentation, and outcome, including the response to treatment. This points to BcR IG centrality while also emphasizing the need to dissect the signaling pathways triggered by the distinctive BcR IG expressed by different subsets, particularly those with aggressive clinical behavior. In this mini-review, we discuss the current knowledge on the implicated signaling pathways as well as the recurrent gene mutations in these pathways that characterize major aggressive stereotyped subsets. Special emphasis is given on the intertwining of BcR IG and Toll-like receptor (TLR) signaling and the molecular characterization of signaling activation, which has revealed novel players implicated in shaping clinical aggressiveness in CLL, e.g., the histone methyltransferase EZH2 and the transcription factor p63.
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Affiliation(s)
- Marina Gerousi
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Stamatia Laidou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Katerina Gemenetzi
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
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18
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Agathangelidis A, Vlachonikola E, Davi F, Langerak AW, Chatzidimitriou A. High-Throughput immunogenetics for precision medicine in cancer. Semin Cancer Biol 2021; 84:80-88. [PMID: 34757183 DOI: 10.1016/j.semcancer.2021.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/27/2021] [Accepted: 10/27/2021] [Indexed: 01/20/2023]
Abstract
Cancer is characterized by an extremely complex biological background, which hinders personalized therapeutic interventions. Precision medicine promises to overcome this obstacle through integrating information from different 'subsystems', including the host, the external environment, the tumor itself and the tumor micro-environment. Immunogenetics is an essential tool that allows dissecting both lymphoid cancer ontogeny at both a cell-intrinsic and a cell-extrinsic level, i.e. through characterizing micro-environmental interactions, with a view to precision medicine. This is particularly thanks to the introduction of powerful, high-throughput approaches i.e. next generation sequencing, which allow the comprehensive characterization of immune repertoires. Indeed, NGS immunogenetic analysis (Immune-seq) has emerged as key to both understanding cancer pathogenesis and improving the accuracy of clinical decision making in oncology. Immune-seq has applications in lymphoid malignancies, assisting in the diagnosis e.g. through differentiating from reactive conditions, as well as in disease monitoring through accurate assessment of minimal residual disease. Moreover, Immune-seq facilitates the study of T cell receptor clonal dynamics in critical clinical contexts, including transplantation as well as innovative immunotherapy for solid cancers. The clinical utility of Immune-seq represents the focus of the present contribution, where we highlight what can be achieved but also what must be addressed in order to maximally realize the promise of Immune-seq in precision medicine in cancer.
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Affiliation(s)
- Andreas Agathangelidis
- Centre for Research and Technology Hellas, Institute of Applied Biosciences, Thessaloniki, Greece; Department of Biology, School of Science, National and Kapodistrian University of Athens, Athens, Greece
| | - Elisavet Vlachonikola
- Centre for Research and Technology Hellas, Institute of Applied Biosciences, Thessaloniki, Greece; Department of Genetics and Molecular Biology, Faculty of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Frederic Davi
- Department of Hematology, APHP, Hôpital Pitié-Salpêtrière and Sorbonne University, Paris, France
| | - Anton W Langerak
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, Rotterdam, the Netherlands
| | - Anastasia Chatzidimitriou
- Centre for Research and Technology Hellas, Institute of Applied Biosciences, Thessaloniki, Greece; Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75236, Sweden.
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19
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Vlachonikola E, Stamatopoulos K, Chatzidimitriou A. T Cell Defects and Immunotherapy in Chronic Lymphocytic Leukemia. Cancers (Basel) 2021; 13:3255. [PMID: 34209724 PMCID: PMC8268526 DOI: 10.3390/cancers13133255] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/26/2021] [Accepted: 06/27/2021] [Indexed: 12/31/2022] Open
Abstract
In the past few years, independent studies have highlighted the relevance of the tumor microenvironment (TME) in cancer, revealing a great variety of TME-related predictive markers, as well as identifying novel therapeutic targets in the TME. Cancer immunotherapy targets different components of the immune system and the TME at large in order to reinforce effector mechanisms or relieve inhibitory and suppressive signaling. Currently, it constitutes a clinically validated treatment for many cancers, including chronic lymphocytic leukemia (CLL), an incurable malignancy of mature B lymphocytes with great dependency on microenvironmental signals. Although immunotherapy represents a promising therapeutic option with encouraging results in CLL, the dysfunctional T cell compartment remains a major obstacle in such approaches. In the scope of this review, we outline the current immunotherapeutic treatment options in CLL in the light of recent immunogenetic and functional evidence of T cell impairment. We also highlight possible approaches for overcoming T cell defects and invigorating potent anti-tumor immune responses that would enhance the efficacy of immunotherapy.
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Affiliation(s)
- Elisavet Vlachonikola
- Centre for Research and Technology Hellas, Institute of Applied Biosciences, 57001 Thessaloniki, Greece; (E.V.); (K.S.)
- Department of Genetics and Molecular Biology, Faculty of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Kostas Stamatopoulos
- Centre for Research and Technology Hellas, Institute of Applied Biosciences, 57001 Thessaloniki, Greece; (E.V.); (K.S.)
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Anastasia Chatzidimitriou
- Centre for Research and Technology Hellas, Institute of Applied Biosciences, 57001 Thessaloniki, Greece; (E.V.); (K.S.)
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden
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20
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Tsagiopoulou M, Maniou MC, Pechlivanis N, Togkousidis A, Kotrová M, Hutzenlaub T, Kappas I, Chatzidimitriou A, Psomopoulos F. UMIc: A Preprocessing Method for UMI Deduplication and Reads Correction. Front Genet 2021; 12:660366. [PMID: 34122513 PMCID: PMC8193862 DOI: 10.3389/fgene.2021.660366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/08/2021] [Indexed: 11/17/2022] Open
Abstract
A recent refinement in high-throughput sequencing involves the incorporation of unique molecular identifiers (UMIs), which are random oligonucleotide barcodes, on the library preparation steps. A UMI adds a unique identity to different DNA/RNA input molecules through polymerase chain reaction (PCR) amplification, thus reducing bias of this step. Here, we propose an alignment free framework serving as a preprocessing step of fastq files, called UMIc, for deduplication and correction of reads building consensus sequences from each UMI. Our approach takes into account the frequency and the Phred quality of nucleotides and the distances between the UMIs and the actual sequences. We have tested the tool using different scenarios of UMI-tagged library data, having in mind the aspect of a wide application. UMIc is an open-source tool implemented in R and is freely available from https://github.com/BiodataAnalysisGroup/UMIc.
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Affiliation(s)
- Maria Tsagiopoulou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Maria Christina Maniou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Nikolaos Pechlivanis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasis Togkousidis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Michaela Kotrová
- Unit for Hematological Diagnostics, Department of Internal Medicine II, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Tobias Hutzenlaub
- Laboratory for MEMS Applications, IMTEK-Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
- Hahn-Schickard, Freiburg, Germany
| | - Ilias Kappas
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Fotis Psomopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
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21
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Vlachonikola E, Sofou E, Chatzidimitriou A, Stamatopoulos K, Agathangelidis A. The Significance of B-cell Receptor Stereotypy in Chronic Lymphocytic Leukemia: Biological and Clinical Implications. Hematol Oncol Clin North Am 2021; 35:687-702. [PMID: 34174980 DOI: 10.1016/j.hoc.2021.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The finding that (quasi)identical, stereotyped B-cell receptor (BcR) immunoglobulins IGs) are expressed in a significant fraction of chronic lymphocytic leukemia (CLL) highlighted the importance of antigen selection in disease pathogenesis. Subsets of patients sharing the same stereotyped BcR IG display consistent biological features and, at least for certain subsets, clinical presentation and outcome, including the response to particular treatment. On these grounds, BcR IG stereotypy emerges as a useful tool for dissecting the pronounced heterogeneity of CLL toward refining risk stratification and therapeutic management aligned with the principles of precision medicine.
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Affiliation(s)
- Elisavet Vlachonikola
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, 6th km Charilaou - Thermis, 57001 Thermi, Thessaloniki, Greece; Department of Genetics and Molecular Biology, Faculty of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Electra Sofou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, 6th km Charilaou - Thermis, 57001 Thermi, Thessaloniki, Greece; Laboratory of Biological Chemistry, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, 6th km Charilaou - Thermis, 57001 Thermi, Thessaloniki, Greece; Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75236, Sweden
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, 6th km Charilaou - Thermis, 57001 Thermi, Thessaloniki, Greece; Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala 75236, Sweden.
| | - Andreas Agathangelidis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, 6th km Charilaou - Thermis, 57001 Thermi, Thessaloniki, Greece
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22
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Agathangelidis A, Galigalidou C, Scarfò L, Moysiadis T, Rovida A, Gounari M, Psomopoulos F, Ranghetti P, Galanis A, Davi F, Stamatopoulos K, Chatzidimitriou A, Ghia P. Infrequent "chronic lymphocytic leukemia-specific" immunoglobulin stereotypes in aged individuals with or without low-count monoclonal B-cell lymphocytosis. Haematologica 2021; 106:1178-1181. [PMID: 32586905 PMCID: PMC8018099 DOI: 10.3324/haematol.2020.247908] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Indexed: 12/12/2022] Open
Affiliation(s)
- Andreas Agathangelidis
- Division of Experimental Oncology, Università Vita-Salute, Ospedale San Raffaele, Milan, Italy
| | - Chrysi Galigalidou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Lydia Scarfò
- Division of Experimental Oncology, Università Vita-Salute, Ospedale San Raffaele, Milan, Italy
| | - Theodoros Moysiadis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Alessandra Rovida
- Division of Experimental Oncology, Università Vita-Salute, Ospedale San Raffaele, Milan, Italy
| | - Maria Gounari
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Fotis Psomopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Pamela Ranghetti
- Division of Experimental Oncology, Università Vita-Salute, Ospedale San Raffaele, Milan, Italy
| | - Alex Galanis
- Dept. of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Frederic Davi
- Biological Hematology, Hopital Pitié-Salpetriere, Sorbonne Université, Paris, France
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | | | - Paolo Ghia
- Division of Experimental Oncology, Università Vita-Salute, Ospedale San Raffaele, Milan, Italy
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23
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Vlachonikola E, Stamatopoulos K, Chatzidimitriou A. T Cells in Chronic Lymphocytic Leukemia: A Two-Edged Sword. Front Immunol 2021; 11:612244. [PMID: 33552073 PMCID: PMC7857025 DOI: 10.3389/fimmu.2020.612244] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 12/08/2020] [Indexed: 12/20/2022] Open
Abstract
Chronic lymphocytic leukemia (CLL) is a malignancy of mature, antigen-experienced B lymphocytes. Despite great progress recently achieved in the management of CLL, the disease remains incurable, underscoring the need for further investigation into the underlying pathophysiology. Microenvironmental crosstalk has an established role in CLL pathogenesis and progression. Indeed, the malignant CLL cells are strongly dependent on interactions with other immune and non-immune cell populations that shape a highly orchestrated network, the tumor microenvironment (TME). The composition of the TME, as well as the bidirectional interactions between the malignant clone and the microenvironmental elements have been linked to disease heterogeneity. Mounting evidence implicates T cells present in the TME in the natural history of the CLL as well as in the establishment of certain CLL hallmarks e.g. tumor evasion and immune suppression. CLL is characterized by restrictions in the T cell receptor gene repertoire, T cell oligoclonal expansions, as well as shared T cell receptor clonotypes amongst patients, strongly alluding to selection by restricted antigenic elements of as yet undisclosed identity. Further, the T cells in CLL exhibit a distinctive phenotype with features of “exhaustion” likely as a result of chronic antigenic stimulation. This might be relevant to the fact that, despite increased numbers of oligoclonal T cells in the periphery, these cells are incapable of mounting effective anti-tumor immune responses, a feature perhaps also linked with the elevated numbers of T regulatory subpopulations. Alterations of T cell gene expression profile are associated with defects in both the cytoskeleton and immune synapse formation, and are generally induced by direct contact with the malignant clone. That said, these abnormalities appear to be reversible, which is why therapies targeting the T cell compartment represent a reasonable therapeutic option in CLL. Indeed, novel strategies, including CAR T cell immunotherapy, immune checkpoint blockade and immunomodulation, have come to the spotlight in an attempt to restore the functionality of T cells and enhance targeted cytotoxic activity against the malignant clone.
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Affiliation(s)
- Elisavet Vlachonikola
- Centre for Research and Technology Hellas, Institute of Applied Biosciences, Thessaloniki, Greece.,Department of Genetics and Molecular Biology, Faculty of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kostas Stamatopoulos
- Centre for Research and Technology Hellas, Institute of Applied Biosciences, Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Anastasia Chatzidimitriou
- Centre for Research and Technology Hellas, Institute of Applied Biosciences, Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
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24
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Koukoulias K, Papayanni PG, Georgakopoulou A, Alvanou M, Laidou S, Kouimtzidis A, Pantazi C, Gkoliou G, Vyzantiadis TA, Spyridonidis A, Makris A, Chatzidimitriou A, Psatha N, Anagnostopoulos A, Yannaki E, Papadopoulou A. "Cerberus" T Cells: A Glucocorticoid-Resistant, Multi-Pathogen Specific T Cell Product to Fight Infections in Severely Immunocompromised Patients. Front Immunol 2021; 11:608701. [PMID: 33537032 PMCID: PMC7848034 DOI: 10.3389/fimmu.2020.608701] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/27/2020] [Indexed: 12/27/2022] Open
Abstract
Adoptive immunotherapy (AI) with pathogen-specific T cells is a promising alternative to pharmacotherapy for the treatment of opportunistic infections after allogeneic hematopoietic cell transplantation or solid organ transplantation. However, clinical implementation of AI is limited to patients not receiving high-dose steroids, a prerequisite for optimal T-cell function, practically excluding the most susceptible to infections patients from the benefits of AI. To address this issue, we here rapidly generated, clinical doses of a steroid-resistant T-cell product, simultaneously targeting four viruses (adenovirus, cytomegalovirus, Epstein Barr virus, and BK virus) and the fungus Aspergillus fumigatus, by genetic disruption of the glucocorticoid receptor (GR) gene using CRISPR/CAS9 ribonucleoprotein delivery. The product, “Cerberus” T cells (Cb-STs), was called after the monstrous three-headed dog of Greek mythology, due to its triple potential; specificity against viruses, specificity against fungi and resistance to glucocorticoids. Following efficient on-target GR disruption and minimal off-target editing, the generated Cb-STs maintained the characteristics of pentavalent-STs, their unedited counterparts, including polyclonality, memory immunophenotype, specificity, and cytotoxicity while they presented functional resistance to dexamethasone. Cb-STs may become a powerful, one-time treatment for severely immunosuppressed patients under glucocorticoids who suffer from multiple, life-threatening infections post-transplant, and for whom therapeutic choices are limited.
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Affiliation(s)
- Kiriakos Koukoulias
- Hematology Department, Hematopoietic Cell Transplantation Unit, Gene and Cell Therapy Center, "George Papanikolaou" Hospital, Thessaloniki, Greece.,Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Penelope-Georgia Papayanni
- Hematology Department, Hematopoietic Cell Transplantation Unit, Gene and Cell Therapy Center, "George Papanikolaou" Hospital, Thessaloniki, Greece.,Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Aphrodite Georgakopoulou
- Hematology Department, Hematopoietic Cell Transplantation Unit, Gene and Cell Therapy Center, "George Papanikolaou" Hospital, Thessaloniki, Greece.,Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Maria Alvanou
- Hematology Department, Hematopoietic Cell Transplantation Unit, Gene and Cell Therapy Center, "George Papanikolaou" Hospital, Thessaloniki, Greece.,Department of Internal Medicine, BMT Unit, University of Patras, Patras, Greece
| | - Stamatia Laidou
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | - Anastasios Kouimtzidis
- Hematology Department, Hematopoietic Cell Transplantation Unit, Gene and Cell Therapy Center, "George Papanikolaou" Hospital, Thessaloniki, Greece.,Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Chrysoula Pantazi
- Hematology Department, Hematopoietic Cell Transplantation Unit, Gene and Cell Therapy Center, "George Papanikolaou" Hospital, Thessaloniki, Greece
| | - Glykeria Gkoliou
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | | | | | - Antonios Makris
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | - Nikoletta Psatha
- Altius Institute for Biomedical Sciences, Seattle, WA, United States
| | - Achilles Anagnostopoulos
- Hematology Department, Hematopoietic Cell Transplantation Unit, Gene and Cell Therapy Center, "George Papanikolaou" Hospital, Thessaloniki, Greece
| | - Evangelia Yannaki
- Hematology Department, Hematopoietic Cell Transplantation Unit, Gene and Cell Therapy Center, "George Papanikolaou" Hospital, Thessaloniki, Greece.,Department of Medicine, University of Washington, Seattle, WA, United States
| | - Anastasia Papadopoulou
- Hematology Department, Hematopoietic Cell Transplantation Unit, Gene and Cell Therapy Center, "George Papanikolaou" Hospital, Thessaloniki, Greece
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25
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Agathangelidis A, Galigalidou C, Scarfò L, Moysiadis T, Rovida A, Vlachonikola E, Sofou E, Psomopoulos F, Vardi A, Ranghetti P, Siorenta A, Galanis A, Stamatopoulos K, Chatzidimitriou A, Ghia P. High-throughput analysis of the T cell receptor gene repertoire in low-count monoclonal B cell lymphocytosis reveals a distinct profile from chronic lymphocytic leukemia. Haematologica 2020; 105:e515. [PMID: 33054095 PMCID: PMC7556667 DOI: 10.3324/haematol.2019.221275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Andreas Agathangelidis
- Strategic Research Program on CLL and B-cell neoplasia Unit, Div. of Experimental Oncology, Milan
| | - Chrysi Galigalidou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Lydia Scarfò
- Strategic Research Program on CLL and B-cell neoplasia Unit, Div. of Experimental Oncology, Milan
| | - Theodoros Moysiadis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Alessandra Rovida
- Strategic Research Program on CLL and B-cell neoplasia Unit, Div. of Experimental Oncology, Milan
| | - Elisavet Vlachonikola
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Electra Sofou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Fotis Psomopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Anna Vardi
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Pamela Ranghetti
- Strategic Research Program on CLL and B-cell neoplasia Unit, Div. of Experimental Oncology, Milan
| | - Alexandra Siorenta
- Immunology and National Tissue Typing Center, General Hospital of Athens 'G. Gennimatas', Athens
| | - Alex Galanis
- Department of Molecular Biology and Genetics (MBG), Democritus University of Thrace, Alexandroupolis
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | | | - Paolo Ghia
- Strategic Research Program on CLL and B-cell neoplasia Unit, Div. of Experimental Oncology, Milan
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26
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Kotouza MT, Gemenetzi K, Galigalidou C, Vlachonikola E, Pechlivanis N, Agathangelidis A, Sandaltzopoulos R, Mitkas PA, Stamatopoulos K, Chatzidimitriou A, Psomopoulos FE. TRIP - T cell receptor/immunoglobulin profiler. BMC Bioinformatics 2020; 21:422. [PMID: 32993478 PMCID: PMC7525938 DOI: 10.1186/s12859-020-03669-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 07/20/2020] [Indexed: 11/16/2022] Open
Abstract
Background Antigen receptors are characterized by an extreme diversity of specificities, which poses major computational and analytical challenges, particularly in the era of high-throughput immunoprofiling by next generation sequencing (NGS). The T cell Receptor/Immunoglobulin Profiler (TRIP) tool offers the opportunity for an in-depth analysis based on the processing of the output files of the IMGT/HighV-Quest tool, a standard in NGS immunoprofiling, through a number of interoperable modules. These provide detailed information about antigen receptor gene rearrangements, including variable (V), diversity (D) and joining (J) gene usage, CDR3 amino acid and nucleotide composition and clonality of both T cell receptors (TR) and B cell receptor immunoglobulins (BcR IG), and characteristics of the somatic hypermutation within the BcR IG genes. TRIP is a web application implemented in R shiny. Results Two sets of experiments have been performed in order to evaluate the efficiency and performance of the TRIP tool. The first used a number of synthetic datasets, ranging from 250k to 1M sequences, and established the linear response time of the tool (about 6 h for 1M sequences processed through the entire BcR IG data pipeline). The reproducibility of the tool was tested comparing the results produced by the main TRIP workflow with the results from a previous pipeline used on the Galaxy platform. As expected, no significant differences were noted between the two tools; although the preselection process seems to be stricter within the TRIP pipeline, about 0.1% more rearrangements were filtered out, with no impact on the final results. Conclusions TRIP is a software framework that provides analytical services on antigen receptor gene sequence data. It is accurate and contains functions for data wrangling, cleaning, analysis and visualization, enabling the user to build a pipeline tailored to their needs. TRIP is publicly available at https://bio.tools/TRIP_-_T-cell_Receptor_Immunoglobulin_Profiler.
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Affiliation(s)
- Maria Th Kotouza
- Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece
| | - Katerina Gemenetzi
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, 57001, Greece
| | - Chrysi Galigalidou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, 57001, Greece
| | - Elisavet Vlachonikola
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, 57001, Greece
| | - Nikolaos Pechlivanis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, 57001, Greece
| | - Andreas Agathangelidis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, 57001, Greece
| | - Raphael Sandaltzopoulos
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, 68100, Greece
| | - Pericles A Mitkas
- Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, 57001, Greece
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, 57001, Greece
| | - Fotis E Psomopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, 57001, Greece. .,Dept of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
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27
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Vardi A, Vlachonikola E, Papazoglou D, Psomopoulos F, Kotta K, Ioannou N, Galigalidou C, Gemenetzi K, Pasentsis K, Kotouza M, Koravou E, Scarfó L, Iskas M, Stavroyianni N, Ghia P, Anagnostopoulos A, Kouvatsi A, Ramsay AG, Stamatopoulos K, Chatzidimitriou A. T-Cell Dynamics in Chronic Lymphocytic Leukemia under Different Treatment Modalities. Clin Cancer Res 2020; 26:4958-4969. [PMID: 32616500 DOI: 10.1158/1078-0432.ccr-19-3827] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 04/01/2020] [Accepted: 06/25/2020] [Indexed: 11/16/2022]
Abstract
PURPOSE Using next-generation sequencing (NGS), we recently documented T-cell oligoclonality in treatment-naïve chronic lymphocytic leukemia (CLL), with evidence indicating T-cell selection by restricted antigens. EXPERIMENTAL DESIGN Here, we sought to comprehensively assess T-cell repertoire changes during treatment in relation to (i) treatment type [fludarabine-cyclophosphamide-rituximab (FCR) versus ibrutinib (IB) versus rituximab-idelalisib (R-ID)], and (ii) clinical response, by combining NGS immunoprofiling, flow cytometry, and functional bioassays. RESULTS T-cell clonality significantly increased at (i) 3 months in the FCR and R-ID treatment groups, and (ii) over deepening clinical response in the R-ID group, with a similar trend detected in the IB group. Notably, in constrast to FCR that induced T-cell repertoire reconstitution, B-cell receptor signaling inhibitors (BcRi) preserved pretreatment clones. Extensive comparisons both within CLL as well as against T-cell receptor sequence databases showed little similarity with other entities, but instead revealed major clonotypes shared exclusively by patients with CLL, alluding to selection by conserved CLL-associated antigens. We then evaluated the functional effect of treatments on T cells and found that (i) R-ID upregulated the expression of activation markers in effector memory T cells, and (ii) both BcRi improved antitumor T-cell immune synapse formation, in marked contrast to FCR. CONCLUSIONS Taken together, our NGS immunoprofiling data suggest that BcRi retain T-cell clones that may have developed against CLL-associated antigens. Phenotypic and immune synapse bioassays support a concurrent restoration of functionality, mostly evident for R-ID, arguably contributing to clinical response.
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Affiliation(s)
- Anna Vardi
- Institute of Applied Biosciences, CERTH, Thessaloniki, Greece.,Hematology Department and HCT Unit, G. Papanicolaou Hospital, Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Elisavet Vlachonikola
- Institute of Applied Biosciences, CERTH, Thessaloniki, Greece.,Faculty of Sciences, Department of Genetics, Development and Molecular Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Despoina Papazoglou
- Lymphoma Immunology Group, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
| | - Fotis Psomopoulos
- Institute of Applied Biosciences, CERTH, Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Kostantia Kotta
- Institute of Applied Biosciences, CERTH, Thessaloniki, Greece
| | - Nikolaos Ioannou
- Lymphoma Immunology Group, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
| | - Chrysi Galigalidou
- Institute of Applied Biosciences, CERTH, Thessaloniki, Greece.,Democritus University of Thrace, Department of Molecular Biology and Genetics, Alexandroupolis, Greece
| | - Katerina Gemenetzi
- Institute of Applied Biosciences, CERTH, Thessaloniki, Greece.,Democritus University of Thrace, Department of Molecular Biology and Genetics, Alexandroupolis, Greece
| | | | - Maria Kotouza
- Institute of Applied Biosciences, CERTH, Thessaloniki, Greece
| | - Evdoxia Koravou
- Hematology Department and HCT Unit, G. Papanicolaou Hospital, Thessaloniki, Greece
| | - Lydia Scarfó
- Division of Experimental Oncology, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milan, Italy
| | - Michail Iskas
- Hematology Department and HCT Unit, G. Papanicolaou Hospital, Thessaloniki, Greece
| | - Niki Stavroyianni
- Hematology Department and HCT Unit, G. Papanicolaou Hospital, Thessaloniki, Greece
| | - Paolo Ghia
- Division of Experimental Oncology, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milan, Italy
| | | | - Anastasia Kouvatsi
- Faculty of Sciences, Department of Genetics, Development and Molecular Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alan G Ramsay
- Lymphoma Immunology Group, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, CERTH, Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences, CERTH, Thessaloniki, Greece. .,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
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28
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Fragiadaki I, Papadakis S, Sevastaki G, Sfyridaki K, Mavroudi I, Goulielmos GN, Kanellou P, Mörtberg A, Höglund P, Gemenetzi K, Stamatopoulos K, Chatzidimitriou A, Palmblad J, Papadaki HA. Increased frequency of the single nucleotide polymorphism of the DARC/ACKR1 gene associated with ethnic neutropenia in a cohort of European patients with chronic idiopathic neutropenia. Am J Hematol 2020; 95:E163-E166. [PMID: 32243614 DOI: 10.1002/ajh.25813] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/26/2020] [Accepted: 03/28/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Irene Fragiadaki
- Hemopoiesis Research Laboratory, School of MedicineUniversity of Crete and Department of Hematology, University Hospital of Heraklion Heraklion Greece
| | - Stavros Papadakis
- Hemopoiesis Research Laboratory, School of MedicineUniversity of Crete and Department of Hematology, University Hospital of Heraklion Heraklion Greece
| | | | | | - Irene Mavroudi
- Hemopoiesis Research Laboratory, School of MedicineUniversity of Crete and Department of Hematology, University Hospital of Heraklion Heraklion Greece
| | - George N. Goulielmos
- Department of Internal MedicineMolecular Pathology and Human Genetics Section, School of Medicine, University of Crete Crete Greece
| | - Peggy Kanellou
- Department of HematologyVenizeleion General Hospital Heraklion, Crete Greece
| | - Anette Mörtberg
- Department of Clinical Immunology and Transfusion MedicineKarolinska University Hospital Huddinge Stockholm Sweden
| | - Petter Höglund
- Department of Clinical Immunology and Transfusion MedicineKarolinska University Hospital Huddinge Stockholm Sweden
- Department of Medicine Karolinska Institutet Stockholm Sweden
- Center for Hematology and Regenerative Medicine (HERM)Karolinska University Hospital Huddinge Stockholm Sweden
| | - Katerina Gemenetzi
- Institute of Applied Biosciences, Centre for Research & Technology Hellas Thessaloniki Greece
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research & Technology Hellas Thessaloniki Greece
| | | | - Jan Palmblad
- Department of Medicine Karolinska Institutet Stockholm Sweden
| | - Helen A. Papadaki
- Hemopoiesis Research Laboratory, School of MedicineUniversity of Crete and Department of Hematology, University Hospital of Heraklion Heraklion Greece
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Gemenetzi K, Agathangelidis A, Zaragoza-Infante L, Sofou E, Papaioannou M, Chatzidimitriou A, Stamatopoulos K. B Cell Receptor Immunogenetics in B Cell Lymphomas: Immunoglobulin Genes as Key to Ontogeny and Clinical Decision Making. Front Oncol 2020; 10:67. [PMID: 32083012 PMCID: PMC7006488 DOI: 10.3389/fonc.2020.00067] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 01/15/2020] [Indexed: 12/21/2022] Open
Abstract
The clonotypic B cell receptor immunoglobulin (BcR IG) plays a seminal role in B cell lymphoma development and evolution. From a clinical perspective, this view is supported by the remarkable therapeutic efficacy of BcR signaling inhibitors, even among heavily pre-treated, relapsed/refractory patients. This clinical development complements immunogenetic evidence for antigen drive in the natural history of these tumors. Indeed, BcR IG gene repertoire biases have been documented in different B cell lymphoma subtypes, alluding to selection of B cell progenitors that express particular BcR IG. Moreover, distinct entities display imprints of somatic hypermutation within the clonotypic BcR IG gene following patterns that strengthen the argument for antigen selection. Of note, at least in certain B cell lymphomas, the BcR IG genes are intraclonally diversified, likely in a context of ongoing interactions with antigen(s). Moreover, BcR IG gene repertoire profiling suggests that unique immune pathways lead to distinct B cell lymphomas through targeting cells at different stages in the B cell differentiation trajectory (e.g., germinal center B cells in follicular lymphoma, FL). Regarding the implicated antigens, although their precise nature remains to be fully elucidated, immunogenetic analysis has offered important hints by revealing similarities between the BcR IG of particular lymphomas and B cell clones with known antigenic specificity: this has paved the way to functional studies that identified relevant antigenic determinants of classes of structurally similar epitopes. Finally, in certain tumors, most notably chronic lymphocytic leukemia (CLL), immunogenetic analysis has also proven instrumental in accurate patient risk stratification since cases with differing BcR IG gene sequence features follow distinct disease courses and respond differently to particular treatment modalities. Overall, delving into the BcR IG gene sequences emerges as key to understanding B cell lymphoma pathophysiology, refining prognostication and assisting in making educated treatment choices.
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Affiliation(s)
- Katerina Gemenetzi
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Andreas Agathangelidis
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Laura Zaragoza-Infante
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Electra Sofou
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Maria Papaioannou
- Hematology Department, University General Hospital of Thessaloniki AHEPA, Thessaloniki, Greece
| | | | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
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30
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Chatzidimitriou A, Trachana M, Pratsidou-Gertsi P. The role of tacrolimus in the step-up induction therapy of refractory childhood-onset lupus nephritis. Hippokratia 2015; 19:378. [PMID: 27703317 PMCID: PMC5033157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- A Chatzidimitriou
- Pediatric Immunology and Rheumatology Referral Center, 1 Department of Paediatrics, Medical School, Aristotle University of Thessaloniki, Greece
| | - M Trachana
- Pediatric Immunology and Rheumatology Referral Center, 1 Department of Paediatrics, Medical School, Aristotle University of Thessaloniki, Greece
| | - P Pratsidou-Gertsi
- Pediatric Immunology and Rheumatology Referral Center, 1 Department of Paediatrics, Medical School, Aristotle University of Thessaloniki, Greece
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31
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Chatzidimitriou A, Georgoudis G, Manousou A, Argira E, Vadalouka A, Anastasopoulou D, Pavlopoulos F, Siafaka I. 918 COGNITIVE PAIN ASSESSMENT IN GREEK PATIENTS: THE CASE OF THE PAIN CATASTROPHISING SCALE. Eur J Pain 2012. [DOI: 10.1016/s1090-3801(06)60921-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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