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Lübke J, Schmid A, Christen D, Oude Elberink HNG, Span LFR, Niedoszytko M, Gorska A, Lange M, Gleixner KV, Hadzijusufovic E, Stefan A, Angelova-Fischer I, Zanotti R, Bonifacio M, Bonadonna P, Shoumariyeh K, von Bubnoff N, Müller S, Perkins C, Elena C, Malcovati L, Hagglund H, Mattsson M, Parente R, Varkonyi J, Fortina AB, Caroppo F, Brockow K, Zink A, Breynaert C, Leven T, Yavuz AS, Doubek M, Sabato V, Schug T, Hartmann K, Triggiani M, Gotlib J, Hermine O, Arock M, Kluin-Nelemans HC, Panse J, Sperr WR, Valent P, Reiter A, Schwaab J. Serum chemistry profiling and prognostication in systemic mastocytosis: a registry-based study of the ECNM and GREM. Blood Adv 2024; 8:2890-2900. [PMID: 38593217 PMCID: PMC11214361 DOI: 10.1182/bloodadvances.2024012756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/12/2024] [Accepted: 03/18/2024] [Indexed: 04/11/2024] Open
Abstract
ABSTRACT Certain laboratory abnormalities correlate with subvariants of systemic mastocytosis (SM) and are often prognostically relevant. To assess the diagnostic and prognostic value of individual serum chemistry parameters in SM, 2607 patients enrolled within the European Competence Network on Mastocytosis and 575 patients enrolled within the German Registry on Eosinophils and Mast Cells were analyzed. For screening and diagnosis of SM, tryptase was identified as the most specific serum parameter. For differentiation between indolent and advanced SM (AdvSM), the following serum parameters were most relevant: tryptase, alkaline phosphatase, β2-microglobulin, lactate dehydrogenase (LDH), albumin, vitamin B12, and C-reactive protein (P < .001). With regard to subvariants of AdvSM, an elevated LDH of ≥260 U/L was associated with multilineage expansion (leukocytosis, r = 0.37, P < .001; monocytosis, r = 0.26, P < .001) and the presence of an associated myeloid neoplasm (P < .001), whereas tryptase levels were highest in mast cell leukemia (MCL) vs non-MCL (308μg/L vs 146μg/L, P = .003). Based on multivariable analysis, the hazard-risk weighted assignment of 1 point to LDH (hazard ratio [HR], 2.1; 95% confidence interval [CI], 1.1-4.0; P = .018) and 1.5 points each to β2-microglobulin (HR, 2.7; 95% CI, 1.4-5.4; P = .004) and albumin (HR, 3.3; 95% CI, 1.7-6.5; P = .001) delineated a highly predictive 3-tier risk classification system (0 points, 8.1 years vs 1 point, 2.5 years; ≥1.5 points, 1.7 years; P < .001). Moreover, serum chemistry parameters enabled further stratification of patients classified as having an International Prognostic Scoring System for Mastocytosis-AdvSM1/2 risk score (P = .027). In conclusion, serum chemistry profiling is a crucial tool in the clinical practice supporting diagnosis and prognostication of SM and its subvariants.
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Affiliation(s)
- Johannes Lübke
- Department of Hematology and Oncology, University Hospital Mannheim, Heidelberg University, Mannheim, Germany
| | - Alicia Schmid
- Department of Hematology and Oncology, University Hospital Mannheim, Heidelberg University, Mannheim, Germany
| | - Deborah Christen
- Department of Oncology, Hematology, Hemostaseology and Stem Cell Transplantation, University Hospital RWTH Aachen, Aachen, Germany
- Center for Integrated Oncology, Aachen Bonn Cologne Düsseldorf, Aachen, Germany
| | - Hanneke N. G. Oude Elberink
- Department of Allergology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Lambert F. R. Span
- Department of Hematology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Marek Niedoszytko
- Department of Allergology, Medical University of Gdańsk, Gdańsk, Poland
| | - Aleksandra Gorska
- Department of Allergology, Medical University of Gdańsk, Gdańsk, Poland
| | - Magdalena Lange
- Department of Dermatology, Venereology and Allergology, Medical University of Gdańsk, Gdańsk, Poland
| | - Karoline V. Gleixner
- Division of Hematology & Hemostaseology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria
| | - Emir Hadzijusufovic
- Division of Hematology & Hemostaseology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria
- Department/University Clinic for Companion Animals and Horses, Internal Medicine Small Animals, University Clinic for Small Animals, University of Veterinary Medicine, Vienna, Austria
| | - Alex Stefan
- University Clinic for Hematology and Oncology, Kepler University Hospital, Johannes Kepler University, Linz, Austria
| | - Irena Angelova-Fischer
- Department of Dermatology and Venereology, Allergy Center, Kepler University Hospital, Johannes Kepler University, Linz, Austria
| | - Roberta Zanotti
- Department of Medicine, Section of Hematology, Verona University Hospital, Verona, Italy
| | - Massimiliano Bonifacio
- Department of Medicine, Section of Hematology, Verona University Hospital, Verona, Italy
| | | | - Khalid Shoumariyeh
- Department of Medicine I, Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK), partner site Freiburg and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Nikolas von Bubnoff
- Department of Medicine I, Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK), partner site Freiburg and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Hematology and Oncology, Medical Center, University of Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Sabine Müller
- Department of Dermatology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Cecelia Perkins
- Stanford Cancer Institute, Stanford University School of Medicine/Stanford Cancer Institute, Stanford, CA
| | - Chiara Elena
- Hematology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Luca Malcovati
- Hematology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Hans Hagglund
- Division of Hematology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Mattias Mattsson
- Division of Hematology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Roberta Parente
- Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy
| | - Judit Varkonyi
- Department of Hematology, Semmelweis University, Budapest, Hungary
| | - Anna Belloni Fortina
- Department of Medicine, Pediatric Dermatology Unit, University of Padova, Padova, Italy
| | - Francesca Caroppo
- Department of Medicine, Pediatric Dermatology Unit, University of Padova, Padova, Italy
| | - Knut Brockow
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Alexander Zink
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Christine Breynaert
- KU Leuven Department of Microbiology, Immunology and Transplantation, Allergy and Clinical Immunology Research Group and MASTeL, University Hospitals Leuven, Leuven, Belgium
| | - Toon Leven
- KU Leuven Department of Microbiology, Immunology and Transplantation, Allergy and Clinical Immunology Research Group and MASTeL, University Hospitals Leuven, Leuven, Belgium
| | - Akif Selim Yavuz
- Division of Hematology, Istanbul Medical School, University of Istanbul, Istanbul, Turkey
| | - Michael Doubek
- Department of Internal Medicine - Hematology and Oncology, University Hospital Brno & Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Vito Sabato
- Department of Immunology-Allergology-Rheumatology, Faculty of Medicine and Health Sciences, University of Antwerp and Antwerp University Hospital, Antwerpen, Belgium
| | - Tanja Schug
- Department of Dermatology and Venereology, University Hospital Graz, Graz, Austria
| | - Karin Hartmann
- Division of Allergy, Department of Dermatology, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Massimo Triggiani
- Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy
| | - Jason Gotlib
- Stanford Cancer Institute, Stanford University School of Medicine/Stanford Cancer Institute, Stanford, CA
| | - Olivier Hermine
- French Reference Center for Mastocytosis, Hospital Necker, Assistance Publique Hôpitaux de Paris, Imagine Institute, University Paris Descartes, Paris, France
| | - Michel Arock
- French Reference Center for Mastocytosis, Pitié-Salpêtrière Hospital, Assistance Publique Hôpitaux de Paris, University Paris Sorbonne, Paris, France
| | - Hanneke C. Kluin-Nelemans
- Department of Hematology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jens Panse
- Department of Oncology, Hematology, Hemostaseology and Stem Cell Transplantation, University Hospital RWTH Aachen, Aachen, Germany
- Center for Integrated Oncology, Aachen Bonn Cologne Düsseldorf, Aachen, Germany
| | - Wolfgang R. Sperr
- Division of Hematology & Hemostaseology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria
| | - Peter Valent
- Division of Hematology & Hemostaseology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria
| | - Andreas Reiter
- Department of Hematology and Oncology, University Hospital Mannheim, Heidelberg University, Mannheim, Germany
| | - Juliana Schwaab
- Department of Hematology and Oncology, University Hospital Mannheim, Heidelberg University, Mannheim, Germany
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Alheraky A, Wierenga ATJ, Simpelaar A, Hesp LB, Minovic I, Bagheri N, Roozendaal C, Span LFR, Oude Elberink HNG, Kema IP, Mulder AB. Hereditary Alpha Tryptasemia: Validation of a Single-Well Multiplex Digital Droplet PCR Assay in a Cohort of Symptomatic Patients. Clin Chem 2024; 70:425-433. [PMID: 38073287 DOI: 10.1093/clinchem/hvad206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 10/30/2023] [Indexed: 02/08/2024]
Abstract
BACKGROUND Hereditary alpha tryptasemia (HαT) has significant prevalence and potential morbidity in the general population. However, it remains largely undiagnosed in routine clinical diagnostics due to low availability of efficient assessment methods. To address this issue, we developed a reliable and efficient single-well multiplex digital droplet PCR assay. METHODS The assay was based on the reconstruction of the TPSAB1 gene through quantification of the ratio of α- and β-tryptase copy number variants (CNV) in a single-well measurement. We performed analytical validation by determining CNV measurement clustering around the expected copy numbers in 281 cases and determined the diagnostic accuracy of basal serum tryptase (BST) to predict HαT and HαT subtypes in 141 symptomatic patients. RESULTS The assay determined α- and β-tryptase CNVs with an overall accuracy, expressed as a 99% prediction interval, of 0.03 ± 0.27 copy numbers. The optimal BST cutoff level to predict HαT in symptomatic patients, who had no other explanation for relatively high tryptase levels (i.e., no diagnosis of systemic mastocytosis, myeloid neoplasm, or end-stage renal failure), was 9.2 ng/mL (sensitivity: 98.1%; specificity: 96.6%). HαT showed a linear gene-dose effect, with an average gene-dose increase of 7.5 ng/mL per extra α-tryptase gene. CONCLUSION Our single-well multiplex digital droplet PCR assay accurately determined HαT and could be implemented as a state-of-the-art routine diagnostic test. The assay demonstrated a strong correlation with BST and the optimal threshold for identifying HαT in symptomatic patients with unexplained high tryptase concentrations was at a BST level of 9.2 ng/mL.
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Affiliation(s)
- Abdulrazzaq Alheraky
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Albertus T J Wierenga
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
- Department of Hematology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Arjan Simpelaar
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Lucy B Hesp
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Isidor Minovic
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Niusha Bagheri
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Caroline Roozendaal
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Lambert F R Span
- Department of Hematology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Hanneke N G Oude Elberink
- Department of Allergology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Ido P Kema
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - André B Mulder
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
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Beyens M, Toscano A, Ebo D, Gülen T, Sabato V. Diagnostic Significance of Tryptase for Suspected Mast Cell Disorders. Diagnostics (Basel) 2023; 13:3662. [PMID: 38132246 PMCID: PMC10742504 DOI: 10.3390/diagnostics13243662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
Tryptase has proven to be a very useful and specific marker to demonstrate mast cell activation and degranulation when an acute (i.e., within 4 h after the event) and baseline value (i.e., at least 24 h after the event) are compared and meet the consensus formula (i.e., an increase of 20% + 2). The upper limit of normal determined by the manufacturer is 11.4 ng/mL; however, this boundary has been the subject of debate. According to ECNM and AIM experts, the normal range of baseline tryptase should be 1 to 15 ng/mL. A genetic trait, hereditary alpha tryptasemia, characterized by an increased alpha coding TPSAB1 copy number is associated with a baseline value above 8 ng/mL. Elevated tryptase can also be found in chronic kidney disease, obesity, and hematological neoplasms. A tryptase > 20 ng/mL serves as a minor criterion to diagnose systemic mastocytosis and an increase in tryptase > 20% + 2 during an acute event is a required criterion in the diagnosis of mast cell activation syndrome. The goal of this review is to demonstrate the (in)significance of tryptase using some clinical vignettes and to provide a practical guide on how to manage and interpret an elevated tryptase level.
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Affiliation(s)
- Michiel Beyens
- Faculty of Medicine and Health Sciences, Department of Immunology, Allergology and Rheumatology, Infla-Med Centre of Excellence, University of Antwerp, 2610 Antwerp, Belgium (A.T.); (V.S.)
- Department of Immunology, Allergology and Rheumatology, University Hospital Antwerp, 2610 Antwerp, Belgium
| | - Alessandro Toscano
- Faculty of Medicine and Health Sciences, Department of Immunology, Allergology and Rheumatology, Infla-Med Centre of Excellence, University of Antwerp, 2610 Antwerp, Belgium (A.T.); (V.S.)
- Department of Immunology, Allergology and Rheumatology, University Hospital Antwerp, 2610 Antwerp, Belgium
| | - Didier Ebo
- Faculty of Medicine and Health Sciences, Department of Immunology, Allergology and Rheumatology, Infla-Med Centre of Excellence, University of Antwerp, 2610 Antwerp, Belgium (A.T.); (V.S.)
- Department of Immunology, Allergology and Rheumatology, University Hospital Antwerp, 2610 Antwerp, Belgium
- Department of Immunology and Allergology, AZ Jan Palfijn Gent, 9000 Ghent, Belgium
| | - Theo Gülen
- Department of Respiratory Medicine and Allergy, K85, Karolinska University Hospital Huddinge, SE-14186 Stockholm, Sweden;
- Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet, SE-17177 Stockholm, Sweden
| | - Vito Sabato
- Faculty of Medicine and Health Sciences, Department of Immunology, Allergology and Rheumatology, Infla-Med Centre of Excellence, University of Antwerp, 2610 Antwerp, Belgium (A.T.); (V.S.)
- Department of Immunology, Allergology and Rheumatology, University Hospital Antwerp, 2610 Antwerp, Belgium
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Valent P, Hoermann G, Bonadonna P, Hartmann K, Sperr WR, Broesby-Olsen S, Brockow K, Niedoszytko M, Hermine O, Chantran Y, Butterfield JH, Greiner G, Carter MC, Sabato V, Radia DH, Siebenhaar F, Triggiani M, Gülen T, Alvarez-Twose I, Staudinger T, Traby L, Sotlar K, Reiter A, Horny HP, Orfao A, Galli SJ, Schwartz LB, Lyons JJ, Gotlib J, Metcalfe DD, Arock M, Akin C. The Normal Range of Baseline Tryptase Should Be 1 to 15 ng/mL and Covers Healthy Individuals With HαT. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:3010-3020. [PMID: 37572755 DOI: 10.1016/j.jaip.2023.08.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 08/14/2023]
Abstract
Physiological levels of basal serum tryptase vary among healthy individuals, depending on the numbers of mast cells, basal secretion rate, copy numbers of the TPSAB1 gene encoding alpha tryptase, and renal function. Recently, there has been a growing debate about the normal range of tryptase because individuals with the hereditary alpha tryptasemia (HαT) trait may or may not be symptomatic, and if symptomatic, uncertainty exists as to whether this trait directly causes clinical phenotypes or aggravates certain conditions. In fact, most HαT-positive cases are regarded as asymptomatic concerning mast cell activation. To address this point, experts of the European Competence Network on Mastocytosis (ECNM) and the American Initiative in Mast Cell Diseases met at the 2022 Annual ECNM meeting and discussed the physiological tryptase range. Based on this discussion, our faculty concluded that the normal serum tryptase range should be defined in asymptomatic controls, inclusive of individuals with HαT, and based on 2 SDs covering the 95% confidence interval. By applying this definition in a literature screen, the normal basal tryptase in asymptomatic controls (HαT-positive persons included) ranges between 1 and 15 ng/mL. This definition should avoid overinterpretation, unnecessary referrals, and unnecessary anxiety or anticipatory fear of illness in healthy individuals.
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Affiliation(s)
- Peter Valent
- Division of Haematology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria.
| | - Gregor Hoermann
- Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria; MLL Munich Leukemia Laboratory, Munich, Germany
| | | | - Karin Hartmann
- Division of Allergy, Department of Dermatology, University Hospital Basel and University of Basel, Basel, Switzerland; Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Wolfgang R Sperr
- Division of Haematology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria
| | - Sigurd Broesby-Olsen
- Department of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark
| | - Knut Brockow
- Department of Dermatology and Allergy Biederstein, Technical University of Munich, Munich, Germany
| | - Marek Niedoszytko
- Department of Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Olivier Hermine
- Service d'hématologie, Imagine Institute Université de Paris, Centre national de référence des mastocytoses, Hôpital Necker, Assistance publique hôpitaux de Paris, Paris, France
| | - Yannick Chantran
- Department of Biological Immunology, Saint-Antoine Hospital, Paris Sorbonne University, Paris, France
| | | | - Georg Greiner
- Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria; Ihr Labor, Medical Diagnostic Laboratories, Vienna, Austria
| | - Melody C Carter
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Md
| | - Vito Sabato
- Faculty of Medicine and Health Sciences, Department of Immunology-Allergology-Rheumatology, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Deepti H Radia
- Guy's & St. Thomas' National Health Service (NHS) Foundation Trust, Guy's Hospital, London, UK
| | - Frank Siebenhaar
- Institute of Allergology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Immunology and Allergology (IA), Berlin, Germany
| | - Massimo Triggiani
- Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy
| | - Theo Gülen
- Department of Respiratory Medicine and Allergy, Karolinska University Hospital Huddinge, Stockholm, Sweden; Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet, Stockholm, Sweden
| | - Ivan Alvarez-Twose
- Instituto de Estudios de Mastocitosis de Castilla La Mancha (CLMast) and CIBERONC, Hospital Virgen del Valle, Toledo, Spain
| | - Thomas Staudinger
- Department of Internal Medicine I, Intensive Care Unit, Medical University of Vienna, Vienna, Austria
| | - Ludwig Traby
- Department of Internal Medicine I, Division of Infectious Diseases and Tropical Medicine, Medical University of Vienna, Vienna, Austria
| | - Karl Sotlar
- Institute of Pathology, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria
| | - Andreas Reiter
- Department of Hematology and Oncology, University Hospital Mannheim, Mannheim, Germany
| | - Hans-Peter Horny
- Institute of Pathology, Ludwig-Maximilians-University, Munich, Germany
| | - Alberto Orfao
- Servicio Central de Citometria, Centro de Investigacion del Cancer (IBMCC CSIC/USAL) Instituto Biosanitario de Salamanca (IBSAL), CIBERONC and Department of Medicine, University of Salamanca, Salamanca, Spain
| | - Stephen J Galli
- Department of Pathology, Department of Microbiology and Immunology, Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Lawrence B Schwartz
- Department of Internal Medicine, Division of Rheumatology, Allergy, and Immunology, Virginia Commonwealth University, Richmond, Va
| | - Jonathan J Lyons
- Translational Allergic Immunopathology Unit, Laboratory of Allergic Diseases, NIAID, NIH, Bethesda, Md
| | - Jason Gotlib
- Stanford University School of Medicine/Stanford Cancer Institute, Stanford, Calif
| | - Dean D Metcalfe
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Md
| | - Michel Arock
- Department of Hematological Biology, Pitié-Salpêtrière Hospital, Paris Sorbonne University, Paris, France
| | - Cem Akin
- Division of Allergy and Clinical Immunology, University of Michigan, Ann Arbor, Mich
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5
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Beyens M, Elst J, van der Poorten ML, Van Gasse A, Toscano A, Verlinden A, Vermeulen K, Maes MB, Oude Elberink JNGH, Ebo D, Sabato V. Mastocytosis and related entities: a practical roadmap. Acta Clin Belg 2023; 78:325-335. [PMID: 36259506 DOI: 10.1080/17843286.2022.2137631] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mastocytosis is a complex heterogenous multisystem disorder that is characterized by pathologic activation or accumulation of neoplastic mast cells (MCs) in one or more organs. This clonal MC expansion is often associated with a somatic gain-of-function mutation (D816V in most of the cases) in the KIT gene, encoding for the MC surface receptor KIT (CD117), a stem cell growth factor receptor. Based on clinical and biochemical criteria, the World Health Organization (WHO) divided mastocytosis into different subclasses. The exact prevalence of mastocytosis remains elusive, but it is estimated that the disease affects approximately 1 in 10,000 persons. The clinical presentation of mastocytosis varies significantly, ranging from asymptomatic patients to a life-threatening disease with multiple organ involvement, potentially leading to cytopenia, malabsorption, hepatosplenomegaly, lymphadenopathy, ascites or osteolytic bone lesions with pathological fractures. Patients with mastocytosis may experience symptoms related to release of MC mediators, such as flushing or diarrhea or even more severe symptoms such as anaphylaxis. Recently, a new genetic trait, hereditary alpha tryptasemia (HaT), was described which involves a copy number variation in the TPSAB1-gene. Its role as standalone multisystem syndrome is heavily debated. There is emerging evidence suggesting there might be a link between HaT and due to the increased prevalence of HaT in patients with SM. The aim of this review is to provide a practical roadmap for diagnosis and management of mastocytosis and its associated entities, since there are still many misconceptions about these topics.Abbreviations: AdvSM: Advanced systemic mastocytosis; ASM: Aggressive systemic mastocytosis; aST: acute serum tryptase; BM: Bone marrow; BMM: Bone marrow mastocytosis; bST: baseline serum tryptase; CM: Cutaneous mastocytosis; DCM: Diffuse cutaneous mastocytosis; HVA: Hymenoptera venom allergy; HaT: Hereditary alpha tryptasemia; ISM: Indolent systemic mastocytosis; MC: Mast cell; MCA: Mast cell activation; MCAS: Mast cell activation syndrome; MCL: Mast cell leukemia; MIS: Mastocytosis in the skin; MMAS: Monoclonal mast cell activation syndrome; MPCM: Maculopapular cutaneous mastocytosis; SM: Systemic mastocytosis; SM-AHN: Systemic mastocytosis with associated hematological neoplasm; SSM: Smouldering systemic mastocytosis; VIT: Venom immunotherapy.
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Affiliation(s)
- Michiel Beyens
- Department of Immunology, Allergology, Rheumatology and the Infla-Med Centre of Excellence, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Immunology, Allergology, Rheumatology, Antwerp University Hospital, Antwerp, Belgium
| | - Jessy Elst
- Department of Immunology, Allergology, Rheumatology and the Infla-Med Centre of Excellence, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Immunology, Allergology, Rheumatology, Antwerp University Hospital, Antwerp, Belgium
| | - Marie-Line van der Poorten
- Department of Immunology, Allergology, Rheumatology and the Infla-Med Centre of Excellence, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Immunology, Allergology, Rheumatology, Antwerp University Hospital, Antwerp, Belgium
- Faculty of Medicine and Health Sciences, Department of Paediatrics and the Infla-Med Centre of Excellence, Antwerp, Belgium
- Department of Paediatrics, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium
| | - Athina Van Gasse
- Department of Immunology, Allergology, Rheumatology and the Infla-Med Centre of Excellence, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Immunology, Allergology, Rheumatology, Antwerp University Hospital, Antwerp, Belgium
- Faculty of Medicine and Health Sciences, Department of Paediatrics and the Infla-Med Centre of Excellence, Antwerp, Belgium
- Department of Paediatrics, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium
| | - Alessandro Toscano
- Department of Immunology, Allergology, Rheumatology and the Infla-Med Centre of Excellence, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Immunology, Allergology, Rheumatology, Antwerp University Hospital, Antwerp, Belgium
| | - Anke Verlinden
- Department of Haematology, Antwerp University Hospital, Antwerp, Belgium
| | - Katrien Vermeulen
- Department of Clinical Biology, Antwerp University Hospital, Antwerp, Belgium
| | - Marie-Berthe Maes
- Department of Clinical Biology, Antwerp University Hospital, Antwerp, Belgium
| | - J N G Hanneke Oude Elberink
- Department of Allergology, University Medical Center Groningen, University of Groningen, and Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
| | - Didier Ebo
- Department of Immunology, Allergology, Rheumatology and the Infla-Med Centre of Excellence, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Immunology, Allergology, Rheumatology, Antwerp University Hospital, Antwerp, Belgium
- Department of Immunology and Allergology, AZ Jan Palfijn Gent, Ghent, Belgium
| | - Vito Sabato
- Department of Immunology, Allergology, Rheumatology and the Infla-Med Centre of Excellence, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
- Department of Immunology, Allergology, Rheumatology, Antwerp University Hospital, Antwerp, Belgium
- Department of Immunology and Allergology, AZ Jan Palfijn Gent, Ghent, Belgium
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6
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Gusev E, Sarapultsev A. Atherosclerosis and Inflammation: Insights from the Theory of General Pathological Processes. Int J Mol Sci 2023; 24:ijms24097910. [PMID: 37175617 PMCID: PMC10178362 DOI: 10.3390/ijms24097910] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Recent advances have greatly improved our understanding of the molecular mechanisms behind atherosclerosis pathogenesis. However, there is still a need to systematize this data from a general pathology perspective, particularly with regard to atherogenesis patterns in the context of both canonical and non-classical inflammation types. In this review, we analyze various typical phenomena and outcomes of cellular pro-inflammatory stress in atherosclerosis, as well as the role of endothelial dysfunction in local and systemic manifestations of low-grade inflammation. We also present the features of immune mechanisms in the development of productive inflammation in stable and unstable plaques, along with their similarities and differences compared to canonical inflammation. There are numerous factors that act as inducers of the inflammatory process in atherosclerosis, including vascular endothelium aging, metabolic dysfunctions, autoimmune, and in some cases, infectious damage factors. Life-critical complications of atherosclerosis, such as cardiogenic shock and severe strokes, are associated with the development of acute systemic hyperinflammation. Additionally, critical atherosclerotic ischemia of the lower extremities induces paracoagulation and the development of chronic systemic inflammation. Conversely, sepsis, other critical conditions, and severe systemic chronic diseases contribute to atherogenesis. In summary, atherosclerosis can be characterized as an independent form of inflammation, sharing similarities but also having fundamental differences from low-grade inflammation and various variants of canonical inflammation (classic vasculitis).
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Affiliation(s)
- Evgenii Gusev
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049 Ekaterinburg, Russia
| | - Alexey Sarapultsev
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049 Ekaterinburg, Russia
- Russian-Chinese Education and Research Center of System Pathology, South Ural State University, 454080 Chelyabinsk, Russia
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7
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Onnes MC, Alheraky A, Nawijn MC, Sluijter TE, Mulder AB, Arends S, Oude Elberink HNG. Detection of clonal mast cell disease in wasp venom allergic patients with normal tryptase. Clin Transl Allergy 2022; 12:e12174. [PMID: 36090584 PMCID: PMC9449818 DOI: 10.1002/clt2.12174] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/19/2022] [Accepted: 06/19/2022] [Indexed: 11/06/2022] Open
Abstract
Background Clonal mast cell disease (CMD) is an underlying aggravating condition in wasp venom allergy (WVA) which requires a different treatment strategy. CMD is increasingly recognized in patients with normal basal serum tryptase (bsT). However, methods to identify at risk patients have not yet been assessed in large cohorts of WVA patients with normal bsT. Methods This retrospective study evaluated the reliability of the REMA score in detecting CMD in a cohort of grade IV WVA patients with normal bsT and assessed the added value of other clinical parameters, KIT D816V mutation analysis in peripheral blood (PB) and the diagnosis of hereditary alpha tryptasemia (HAT). All patients had a conclusive bone marrow evaluation that demonstrated or excluded underlying CMD. Results In total 35 CMD and 96 non‐CMD patients were included. REMA score had a sensitivity of 72% (95% CI 56%–88%) and specificity of 79% (95% CI 70%–87%) in this cohort. Loss of consciousness during systemic reaction and bsT between 6.3 and 11.4 ng/ml were additional parameters independently associated with CMD. Sensitivity of KIT in PB was relatively low, 56% (95% CI 36%–75%), but had added value as screening method in patients with a low REMA score due to 100% specificity. Conclusion The REMA score is a relatively reliable method to detect patients at risk of CMD among WVA patients with normal bsT. KIT mutation analysis in PB could serve as additional screening method in patients with low REMA scores.
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Affiliation(s)
- Merel C Onnes
- Department of Internal Medicine Division of Allergology University Medical Center Groningen University of Groningen Groningen The Netherlands.,Department of Pathology and Medical Biology University Medical Center Groningen University of Groningen Groningen The Netherlands.,Groningen Research Institute for Asthma and COPD (GRIAC) Research Institute University Medical Center Groningen Groningen The Netherlands
| | - Abdulrazzaq Alheraky
- Department of Laboratory Medicine University Medical Center Groningen University of Groningen Groningen The Netherlands
| | - Martijn C Nawijn
- Department of Pathology and Medical Biology University Medical Center Groningen University of Groningen Groningen The Netherlands.,Groningen Research Institute for Asthma and COPD (GRIAC) Research Institute University Medical Center Groningen Groningen The Netherlands
| | - Tim E Sluijter
- Department of Internal Medicine Division of Allergology University Medical Center Groningen University of Groningen Groningen The Netherlands
| | - André B Mulder
- Department of Laboratory Medicine University Medical Center Groningen University of Groningen Groningen The Netherlands
| | - Suzanne Arends
- Department of Rheumatology and Clinical Immunology University Medical Center Groningen University of Groningen Groningen The Netherlands
| | - Hanneke N G Oude Elberink
- Department of Internal Medicine Division of Allergology University Medical Center Groningen University of Groningen Groningen The Netherlands.,Groningen Research Institute for Asthma and COPD (GRIAC) Research Institute University Medical Center Groningen Groningen The Netherlands
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8
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Gülen T, Akin C, Bonadonna P, Siebenhaar F, Broesby-Olsen S, Brockow K, Niedoszytko M, Nedoszytko B, Oude Elberink HNG, Butterfield JH, Sperr WR, Alvarez-Twose I, Horny HP, Sotlar K, Schwaab J, Jawhar M, Zanotti R, Nilsson G, Lyons JJ, Carter MC, George TI, Hermine O, Gotlib J, Orfao A, Triggiani M, Reiter A, Hartmann K, Castells M, Arock M, Schwartz LB, Metcalfe DD, Valent P. Selecting the Right Criteria and Proper Classification to Diagnose Mast Cell Activation Syndromes: A Critical Review. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:3918-3928. [PMID: 34166845 DOI: 10.1016/j.jaip.2021.06.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/05/2021] [Accepted: 06/11/2021] [Indexed: 11/17/2022]
Abstract
In recent years, knowledge about mechanisms underlying mast cell activation (MCA) and accumulation in various pathologic conditions increased substantially. In addition, criteria and a classification of MCA syndromes (MCASs) have been set forth. MCAS is defined by typical clinical symptoms, a substantial increase in serum tryptase level during an attack over the patient's baseline tryptase, and a response of the symptoms to drugs targeting mast cells, mediator production, and/or mediator effects. Alternative diagnostic criteria of MCAS have also been suggested, but these alternative criteria often lack specificity and validation. In this report, we critically review the contemporary literature relating to MCAS and compare the specificity, sensitivity, and strength of MCAS-related parameters within proposals to diagnose and classify MCAS and its variants. Furthermore, we highlight the need to apply specific consensus criteria in the evaluation and classification of MCAS in individual patients. This is an urgent and important medical necessity because as an increasing number of patients are being given a misdiagnosis of MCAS based on nonspecific criteria, which contributes to confusion and frustration by patients and caregivers and sometimes may delay recognition and treatment of correct medical conditions that often turn out to be unrelated to MCA.
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Affiliation(s)
- Theo Gülen
- Department of Respiratory Medicine and Allergy, Karolinska University Hospital Huddinge, Stockholm, Sweden; Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet, Stockholm, Sweden.
| | - Cem Akin
- Division of Allergy and Clinical Immunology, University of Michigan, Ann Arbor, Mich
| | | | - Frank Siebenhaar
- Dermatological Allergology, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Sigurd Broesby-Olsen
- Department of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark
| | - Knut Brockow
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University of Munich, Germany
| | - Marek Niedoszytko
- Department of Allergology, Medical University of Gdansk, Gdansk, Poland
| | - Boguslaw Nedoszytko
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, Gdansk, Poland; Invicta Fertility and Reproductive Center, Molecular Laboratory, Sopot, Poland
| | - Hanneke N G Oude Elberink
- Department of Allergology, GRIAC Research Institute, University of Groningen, University Medical Center of Groningen, Groningen, The Netherlands
| | | | - Wolfgang R Sperr
- Department of Internal Medicine I, Division of Hematology and Hemostaseology, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria
| | - Ivan Alvarez-Twose
- Instituto de Estudios de Mastocitosis de Castilla La Mancha (CLMast) and CIBERONC, Hospital Virgen del Valle, Toledo, Spain
| | - Hans-Peter Horny
- Institute of Pathology, Ludwig-Maximilian University, Munich, Germany
| | - Karl Sotlar
- Institute of Pathology, Paracelsus Medical University Salzburg, Salzburg, Austria
| | | | - Mohamad Jawhar
- Department of Hematology and Oncology, University Hospital Mannheim, Mannheim, Germany
| | - Roberta Zanotti
- Department of Medicine, Section of Hematology, University of Verona, Verona, Italy
| | - Gunnar Nilsson
- Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet, Stockholm, Sweden
| | - Jonathan J Lyons
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Melody C Carter
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Tracy I George
- Department of Pathology, University of Utah, Salt Lake City, Utah
| | - Olivier Hermine
- Imagine Institute Université Paris Descartes, Sorbonne, Paris Cité, Centre National de Référence des Mastocytoses, Paris, France
| | - Jason Gotlib
- Stanford Cancer Institute/Stanford University School of Medicine, Stanford, Calif
| | - Alberto Orfao
- Servicio Central de Citometria, Centro de Investigacion del Cancer (IBMCC; CSIC/USAL), IBSAL, CIBERONC and Department of Medicine, University of Salamanca, Salamanca, Spain
| | - Massimo Triggiani
- Division of Allergy and Clinical Immunology, University of Salerno, Salerno, Italy
| | - Andreas Reiter
- Department of Hematology and Oncology, University Hospital Mannheim, Mannheim, Germany
| | - Karin Hartmann
- Division of Allergy, Department of Dermatology, University Hospital Basel and University of Basel, Basel, Switzerland; Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Mariana Castells
- Brigham and Women's Hospital, Mastocytosis Center, Harvard Medical School, Boston, Mass
| | - Michel Arock
- Department of Hematological Biology, Pitié-Salpêtrière Hospital, Pierre et Marie Curie University (UPMC), Paris, France
| | - Lawrence B Schwartz
- Department of Internal Medicine, Division of Rheumatology, Allergy, and Immunology, Virginia Commonwealth University, Richmond, Va
| | - Dean D Metcalfe
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Peter Valent
- Department of Internal Medicine I, Division of Hematology and Hemostaseology, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Hematology and Oncology, Medical University of Vienna, Vienna, Austria
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9
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Onnes MC, van Doormaal JJ, van der Veer E, Versluijs JB, Arends S, Oude Elberink HNG. Fracture Risk Reduction by Bisphosphonates in Mastocytosis? THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2020; 8:3557-3564. [PMID: 32673882 DOI: 10.1016/j.jaip.2020.06.054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 06/16/2020] [Accepted: 06/19/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Fragility fractures (FFxs) and osteoporosis are frequent manifestations of indolent systemic mastocytosis (ISM). So far, the effect of antiosteoporotic therapy on FFxs has scarcely been investigated. OBJECTIVE This study evaluates the long-term effect of bisphosphonate treatment on FFxs, bone mineral density (BMD), and bone resorption in patients with ISM in daily clinical practice. METHODS Patients with ISM who received bisphosphonates because of osteoporosis and/or FFxs were retrospectively analyzed (n = 58). Fractures were recorded by vertebral fracture assessment, X-rays of the thoracolumbar spine, medical records, and a questionnaire. Five-year analysis (n = 30) was made by comparing observed 5-year FFx risk with MastFx-predicted FFx risk for patients with ISM not treated with antiosteoporotic drugs and analyzing 5-year change in BMD and serum collagen C telopeptide (sCTx) Z-scores. RESULTS During the median follow-up of 7.3 years, 14 of 58 patients suffered 40 FFxs. Five- and 10-year FFx-free survival were 81.9% (standard error [SE], 5.5%) and 67.0% (SE, 7.7%), respectively. FFx risk was significantly higher in patients with previous vertebral FFxs (P = .004), lower femoral BMD at baseline (P = .042), and history of anaphylaxis (P = .028). No 5-year FFx risk reduction could be proven, possibly due to the small sample size. The lumbar BMD Z-score significantly increased from median (interquartile range [IQR]) -2.20 (-2.80 to -1.50) to -1.50 (-2.30 to -0.60) (P < .001, n = 27). The sCTx Z-score decreased from median 0.71 (IQR, -0.59 to 2.39) to -0.95 (-1.30 to -0.16) (P = .008, n = 15). CONCLUSION Bisphosphonates significantly increase BMD and decrease sCTx in patients with ISM. However, FFxs still frequently occur. Especially patients with previous FFxs remain at high risk of new FFxs.
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Affiliation(s)
- Merel C Onnes
- Department of Allergology, University Medical Center Groningen, University of Groningen, and Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands
| | - Jasper J van Doormaal
- Department of Allergology, University Medical Center Groningen, University of Groningen, and Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands
| | - Eveline van der Veer
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Joris B Versluijs
- Department of Allergology, University Medical Center Groningen, University of Groningen, and Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands
| | - Suzanne Arends
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Hanneke N G Oude Elberink
- Department of Allergology, University Medical Center Groningen, University of Groningen, and Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands.
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10
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Initiating yellow jacket venom immunotherapy with a 100-μg dose: A challenge? THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2018; 7:1332-1334.e4. [PMID: 30240885 DOI: 10.1016/j.jaip.2018.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 09/02/2018] [Accepted: 09/04/2018] [Indexed: 11/23/2022]
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11
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Butterfield JH, Ravi A, Pongdee T. Mast Cell Mediators of Significance in Clinical Practice in Mastocytosis. Immunol Allergy Clin North Am 2018; 38:397-410. [DOI: 10.1016/j.iac.2018.04.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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12
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Degboé Y, Eischen M, Nigon D, Apoil PA, Mailhol C, Tournier E, Laurent C, Hanssens K, Hermine O, Paul C, Laroche M, Bulai-Livideanu C. Prevalence and risk factors for fragility fracture in systemic mastocytosis. Bone 2017; 105:219-225. [PMID: 28919366 DOI: 10.1016/j.bone.2017.09.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 09/13/2017] [Accepted: 09/13/2017] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Systemic mastocytosis (SM) is characterized by the accumulation of mast cells in tissues other than the skin. Bone involvement although frequent has not been thoroughly evaluated. Primary objective was to determine risk factors associated with fragility fractures (FF) in SM. Secondary objectives were to evaluate the ability of bone marrow tryptase (BMT) level to identify patients with FF, and to describe bone involvement in SM. METHODS We analyzed retrospectively all consecutive patients seen in our expert center, with a diagnosis of SM according to the 2001 WHO criteria, and with complete bone assessment. We collected data about lifetime fractures, types of cutaneous manifestations, degranulation symptoms, blood and BMT levels, bone mineral density assessed by densitometry and KIT mutation. We performed a univariate analysis investigating the factors associated with FF and then a logistic multivariable regression analysis. We assessed the ability of bone marrow tryptase to identify patients with FF. RESULTS Eighty-nine patients with SM were included. Thirty-six patients (40.4%) suffered from osteoporosis and twenty-five (28.1%) experienced lifetime FF. Univariate analysis identified age at diagnosis and disease onset, presence of telangiectasia macularis eruptiva perstans, digestive symptoms, mast cells activation symptoms, elevated BMT, low femoral and lumbar BMD, as associated with FF. Multivariate analysis identified elevated BMT, low femoral T score and older age at diagnosis as independently associated with FF. CONCLUSIONS Low femoral T-score, BMT level, and older age at diagnosis are markers associated with FF in SM. BMT may represent an important biomarker to predict FF in SM patients.
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Affiliation(s)
- Yannick Degboé
- Rheumatology Centre, Pierre Paul Riquet Hospital, Toulouse University Hospital and Paul Sabatier University, Toulouse, France.
| | - Marine Eischen
- Rheumatology Centre, Pierre Paul Riquet Hospital, Toulouse University Hospital and Paul Sabatier University, Toulouse, France
| | - Delphine Nigon
- Rheumatology Centre, Pierre Paul Riquet Hospital, Toulouse University Hospital and Paul Sabatier University, Toulouse, France.
| | - Pol-André Apoil
- Department of Immunology, Rangueil Hospital, Toulouse University Hospital, Toulouse, France.
| | - Claire Mailhol
- Department of Pneumo-allergology, Larrey Hospital, Toulouse University Hospital, Toulouse, France.
| | - Emilie Tournier
- Pathology Department, Institut Universitaire du Cancer de Toulouse - Oncopole, Toulouse, France.
| | - Camille Laurent
- Pathology Department, Institut Universitaire du Cancer de Toulouse - Oncopole, Toulouse, France.
| | - Katia Hanssens
- Centre de Recherche en Cancérologie de Marseille, INSERM U1068, Aix-Marseille Université UM 105, CNRS UMR7258, Institut Paoli-Calmettes, Marseille, France.
| | - Olivier Hermine
- Department of Hematology, Université Paris Descartes, Hôpital Necker Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Carle Paul
- Department of Dermatology, Mastocytosis Expert Center of Midi-Pyrénées, Paul Sabatier University, Toulouse University Hospital, Toulouse, France.
| | - Michel Laroche
- Rheumatology Centre, Pierre Paul Riquet Hospital, Toulouse University Hospital and Paul Sabatier University, Toulouse, France.
| | - Cristina Bulai-Livideanu
- Department of Dermatology, Mastocytosis Expert Center of Midi-Pyrénées, Paul Sabatier University, Toulouse University Hospital, Toulouse, France.
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Fatal Anaphylaxis to Yellow Jacket Stings in Mastocytosis: Options for Identification and Treatment of At-Risk Patients. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2017; 5:1264-1271. [DOI: 10.1016/j.jaip.2017.03.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 02/24/2017] [Accepted: 03/09/2017] [Indexed: 11/18/2022]
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Wawrzyniak P, Akdis CA, Finkelman FD, Rothenberg ME. Advances and highlights in mechanisms of allergic disease in 2015. J Allergy Clin Immunol 2016; 137:1681-1696. [PMID: 27090934 DOI: 10.1016/j.jaci.2016.02.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 02/03/2016] [Accepted: 02/17/2016] [Indexed: 01/08/2023]
Abstract
This review highlights some of the advances in mechanisms of allergic disease, particularly anaphylaxis, including food allergy, drug hypersensitivity, atopic dermatitis (AD), allergic conjunctivitis, and airway diseases. During the last year, a mechanistic advance in food allergy was achieved by focusing on mechanisms of allergen sensitization. Novel biomarkers and treatment for mastocytosis were presented in several studies. Novel therapeutic approaches in the treatment of atopic dermatitis and psoriasis showed that promising supplementation of the infant's diet in the first year of life with immunoactive prebiotics might have a preventive role against early development of AD and that therapeutic approaches to treat AD in children might be best directed to the correction of a TH2/TH1 imbalance. Several studies were published emphasizing the role of the epithelial barrier in patients with allergic diseases. An impaired skin barrier as a cause for sensitization to food allergens in children and its relationship to filaggrin mutations has been an important development. Numerous studies presented new approaches for improvement of epithelial barrier function and novel biologicals used in the treatment of inflammatory skin and eosinophilic diseases. In addition, novel transcription factors and signaling molecules that can develop as new possible therapeutic targets have been reported.
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Affiliation(s)
- Paulina Wawrzyniak
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland, Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Davos, Switzerland, Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland.
| | - Fred D Finkelman
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, University of Cincinnati College of Medicine, and the Department of Medicine, Cincinnati Veterans Affairs Medical Center, Cincinnati, Ohio
| | - Marc E Rothenberg
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio
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