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Petersen RS, Fijen LM, Levi M, Cohn DM. Hereditary Angioedema: The Clinical Picture of Excessive Contact Activation. Semin Thromb Hemost 2024; 50:978-988. [PMID: 36417927 PMCID: PMC11407848 DOI: 10.1055/s-0042-1758820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Hereditary angioedema is a rare, genetic disorder characterized by painful, debilitating and potentially life-threatening angioedema attacks in subcutaneous and submucosal tissue. While usually unpredictable, attacks can be provoked by a variety of triggers including physical injury and certain medication and are often preceded by prodromal symptoms. Hereditary angioedema has a profound influence on the patients' lives. The fundamental cause of hereditary angioedema in almost all patients is a mutation in the SERPING1 gene leading to a deficiency in C1-inhibitor. Subsequently, the contact activation cascade and kallikrein-kinin pathway are insufficiently inhibited, resulting in excessive bradykinin production triggering vascular leakage. While C1-inhibitor is an important regulator of the intrinsic coagulation pathway, fibrinolytic system and complement cascade, patients do not have an increased risk of coagulopathy, autoimmune conditions or immunodeficiency disorders. Hereditary angioedema is diagnosed based on C1-inhibitor level and function. Genetic analysis is only required in rare cases where hereditary angioedema with normal C1-inhibitor is found. In recent years, new, highly specific therapies have greatly improved disease control and angioedema-related quality of life. This article reviews the clinical picture of hereditary angioedema, the underlying pathophysiology, diagnostic process and currently available as well as investigational therapeutic options.
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Affiliation(s)
- Remy S Petersen
- Department of Vascular Medicine, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam UMC, Amsterdam, the Netherlands
| | - Lauré M Fijen
- Department of Vascular Medicine, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam UMC, Amsterdam, the Netherlands
| | - Marcel Levi
- Department of Vascular Medicine, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam UMC, Amsterdam, the Netherlands
| | - Danny M Cohn
- Department of Vascular Medicine, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam UMC, Amsterdam, the Netherlands
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Zuraw BL, Christiansen SC. Classification, Diagnosis, and Pathology of Angioedema Without Hives. Immunol Allergy Clin North Am 2024; 44:529-541. [PMID: 38937014 DOI: 10.1016/j.iac.2024.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
A clear disease classification schema coupled with an understanding of the specific mechanisms involved in the different types of angioedema without hives informs the diagnostic assessment. The recommended approach involves several key steps. Foremost is the recognizing of the clinical clues which allow for the differentiation of mast cell-mediated disorders from bradykinin-mediated angioedema. Enhanced vascular permeability related to bradykinin is of critical importance to identify given the implications for disease morbidity and risk of mortality. The ability to efficiently categorize and diagnose all forms of angioedema results in improved patient outcomes.
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Affiliation(s)
- Bruce L Zuraw
- Department of Medicine, University of California San Diego, 9500 Gilman Drive, Mail Code 0732, La Jolla, CA 92093, USA; Medicine Service, San Diego Veterans Administration Healthcare System, 3350 La Jolla Village Drive, San Diego, CA 92161, USA.
| | - Sandra C Christiansen
- Department of Medicine, University of California San Diego, 9500 Gilman Drive, Mail Code 0732, La Jolla, CA 92093, USA
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Croft J, Grajeda B, Aguirre LA, Abou-Fadel JS, Ellis CC, Estevao I, Almeida IC, Zhang J. Circulating Blood Prognostic Biomarker Signatures for Hemorrhagic Cerebral Cavernous Malformations (CCMs). Int J Mol Sci 2024; 25:4740. [PMID: 38731959 PMCID: PMC11084792 DOI: 10.3390/ijms25094740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024] Open
Abstract
Cerebral cavernous malformations (CCMs) are a neurological disorder characterized by enlarged intracranial capillaries in the brain, increasing the susceptibility to hemorrhagic strokes, a major cause of death and disability worldwide. The limited treatment options for CCMs underscore the importance of prognostic biomarkers to predict the likelihood of hemorrhagic events, aiding in treatment decisions and identifying potential pharmacological targets. This study aimed to identify blood biomarkers capable of diagnosing and predicting the risk of hemorrhage in CCM1 patients, establishing an initial set of circulating biomarker signatures. By analyzing proteomic profiles from both human and mouse CCM models and conducting pathway enrichment analyses, we compared groups to identify potential blood biomarkers with statistical significance. Specific candidate biomarkers primarily associated with metabolism and blood clotting pathways were identified. These biomarkers show promise as prognostic indicators for CCM1 deficiency and the risk of hemorrhagic stroke, strongly correlating with the likelihood of hemorrhagic cerebral cavernous malformations (CCMs). This lays the groundwork for further investigation into blood biomarkers to assess the risk of hemorrhagic CCMs.
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Affiliation(s)
- Jacob Croft
- Department of Molecular and Translational Medicine, Texas Tech University Health Science Center El Paso (TTUHSCEP), El Paso, TX 79905, USA (J.S.A.-F.)
| | - Brian Grajeda
- Department of Biological Sciences, University of Texas at El Paso, El Paso, TX 79902, USA; (B.G.); (I.E.)
| | - Luis A. Aguirre
- Department of Biological Sciences, University of Texas at El Paso, El Paso, TX 79902, USA; (B.G.); (I.E.)
| | - Johnathan S. Abou-Fadel
- Department of Molecular and Translational Medicine, Texas Tech University Health Science Center El Paso (TTUHSCEP), El Paso, TX 79905, USA (J.S.A.-F.)
| | - Cameron C. Ellis
- Department of Biological Sciences, University of Texas at El Paso, El Paso, TX 79902, USA; (B.G.); (I.E.)
| | - Igor Estevao
- Department of Biological Sciences, University of Texas at El Paso, El Paso, TX 79902, USA; (B.G.); (I.E.)
| | - Igor C. Almeida
- Department of Biological Sciences, University of Texas at El Paso, El Paso, TX 79902, USA; (B.G.); (I.E.)
| | - Jun Zhang
- Department of Molecular and Translational Medicine, Texas Tech University Health Science Center El Paso (TTUHSCEP), El Paso, TX 79905, USA (J.S.A.-F.)
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Coller BS, Ghebrehiwet B, Pessin M. Ellinor Peerschke, PhD (1954-2023). J Thromb Haemost 2024; 22:889-891. [PMID: 38104722 DOI: 10.1016/j.jtha.2023.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 12/07/2023] [Indexed: 12/19/2023]
Affiliation(s)
- Barry S Coller
- Allen and Frances Adler Laboratory of Blood and Vascular Biology, the Rockefeller University, New York, NY 10065, USA.
| | - Berhane Ghebrehiwet
- Division Rheumatology, Allergy and Immunology, Department of Medicine, Stony Brook University Health Sciences Center, Stony Brook, NY 11794-8161, USA
| | - Melissa Pessin
- Department of Pathology, UCM Clinical Laboratories, University of Chicago, Chicago, IL 60637, USA
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Seo MH, Kim SH, Yeo S. Serping1 associated with α-synuclein increase in colonic smooth muscles of MPTP-induced Parkinson's disease mice. Sci Rep 2024; 14:1140. [PMID: 38212417 PMCID: PMC10784473 DOI: 10.1038/s41598-024-51770-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 01/09/2024] [Indexed: 01/13/2024] Open
Abstract
Patients with Parkinson's disease (PD) have gastrointestinal motility disorders, which are common non-motor symptoms. However, the reasons for these motility disorders remain unclear. Increased alpha-synuclein (α-syn) is considered an important factor in peristalsis dysfunction in colonic smooth muscles in patients with PD. In this study, the morphological changes and association between serping1 and α-syn were investigated in the colon of the 1-methyl 4-phenyl 1,2,3,6-tetrahydropyridine-induced chronic PD model. Increased serping1 and α-syn were noted in the colon of the PD model, and decreased serping1 also induced a decrease in α-syn in C2C12 cells. Serping1 is a major regulator of physiological processes in the kallikrein-kinin system, controlling processes including inflammation and vasodilation. The kinin system also comprises bradykinin and bradykinin receptor 1. The factors related to the kallikrein-kinin system, bradykinin, and bradykinin receptor 1 were regulated by serping1 in C2C12 cells. The expression levels of bradykinin and bradykinin receptor 1, modulated by serping1 also increased in the colon of the PD model. These results suggest that the regulation of increased serping1 could alleviate Lewy-type α-synucleinopathy, a characteristic of PD. Furthermore, this study could have a positive effect on the early stages of PD progression because of the perception that α-syn in colonic tissues is present prior to the development of PD motor symptoms.
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Affiliation(s)
- Min Hyung Seo
- Department of Meridian and Acupoint, College of Korean Medicine, Sang Ji University, Wonju, 26339, Republic of Korea
- Division of Biological Science and Technology, Yonsei University, Yonseidae 1 Gil, Wonju, 26493, Republic of Korea
| | - Soo-Hwan Kim
- Division of Biological Science and Technology, Yonsei University, Yonseidae 1 Gil, Wonju, 26493, Republic of Korea.
| | - Sujung Yeo
- Research Institute of Korean Medicine, College of Korean Medicine, Sangji University, Wonju, 26339, Republic of Korea.
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Szaryńska M, Olejniczak-Kęder A, Podpłońska K, Prahl A, Iłowska E. Bradykinin and Neurotensin Analogues as Potential Compounds in Colon Cancer Therapy. Int J Mol Sci 2023; 24:ijms24119644. [PMID: 37298595 DOI: 10.3390/ijms24119644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most lethal malignancies worldwide, so the attempts to find novel therapeutic approaches are necessary. The aim of our study was to analyze how chemical modifications influence physical, chemical, and biological properties of the two peptides, namely, bradykinin (BK) and neurotensin (NT). For this purpose, we used fourteen modified peptides, and their anti-cancers features were analyzed on the HCT116 CRC cell line. Our results confirmed that the spherical mode of a CRC cell line culture better reflects the natural tumour microenvironment. We observed that the size of the colonospheres was markedly reduced following treatment with some BK and NT analogues. The proportion of CD133+ cancer stem cells (CSCs) in colonospheres decreased following incubation with the aforementioned peptides. In our research, we found two groups of these peptides. The first group influenced all the analyzed cellular features, while the second seemed to include the most promising peptides that lowered the count of CD133+ CSCs with parallel substantial reduction in CRC cells viability. These analogues need further analysis to uncover their overall anti-cancer potential.
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Affiliation(s)
- Magdalena Szaryńska
- Department of Histology, Faculty of Medicine, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Agata Olejniczak-Kęder
- Department of Histology, Faculty of Medicine, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Kamila Podpłońska
- Department of Histology, Faculty of Medicine, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Adam Prahl
- Department of Organic Chemistry, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Emilia Iłowska
- Department of Organic Chemistry, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
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Dyga W, Obtulowicz A, Mikolajczyk T, Bogdali A, Dubiela P, Obtulowicz K. The Role of Bradykinin Receptors in Hereditary Angioedema Due to C1-Inhibitor Deficiency. Int J Mol Sci 2022; 23:ijms231810332. [PMID: 36142237 PMCID: PMC9499460 DOI: 10.3390/ijms231810332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/31/2022] [Accepted: 09/04/2022] [Indexed: 12/03/2022] Open
Abstract
Background: Hereditary angioedema (HAE) is a rare, genetic disease caused by the decreased level or function of the C1 inhibitor. The primary mediator of symptoms in HAE is bradykinin acting through its two receptors, namely receptors 1 (BR1) and 2 (BR2). Although BR2 is well characterized, the role of BR1 remains unclear. Objective: To study the role of bradykinin receptors 1 (BR1) in the etiopathogenesis of HAE. Methods: A total of 70 individuals, 40 patients with HAE, and 30 healthy subjects were recruited to the study. HAE was diagnosed in accordance with the international guideline. The level of bradykinin receptors was determined in populations of CD3+, CD4+, CD8+, and CD14++CD16−, CD14++CD16+ monocytes. In addition, the level of disease activity-specific markers was measured. Results: There were statistically significant differences in the subpopulation of lymphocytes and monocytes between patients with HAE compared to healthy subjects. The level of BR1 and BR2 on PBMCs was comparable in healthy subjects and HAE patients during remission with significant overexpression of both receptors, triggered by HAE attack. Moreover, a significant increase in TNF-alpha and IL-1 plasma levels was observed among HAE patients. Conclusions: BR1 expression may play an important role in the pathomechanism of HAE.
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Affiliation(s)
- Wojciech Dyga
- Department of Clinical and Environmental Allergology, Jagiellonian University Medical College, Botaniczna 3, 31-503 Krakow, Poland
| | - Aleksander Obtulowicz
- Department of Dermatology, Jagiellonian University Medical College, Kopernika 50, 31-501 Krakow, Poland
| | - Tomasz Mikolajczyk
- Department of Internal and Agricultural Medicine, Jagiellonian University Medical College, Skarbowa 1, 31-121 Krakow, Poland
| | - Anna Bogdali
- Department of Clinical and Environmental Allergology, Jagiellonian University Medical College, Botaniczna 3, 31-503 Krakow, Poland
| | - Pawel Dubiela
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria
- Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, Waszyngtona 13, 15-269 Bialystok, Poland
- Correspondence:
| | - Krystyna Obtulowicz
- Department of Clinical and Environmental Allergology, Jagiellonian University Medical College, Botaniczna 3, 31-503 Krakow, Poland
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Rex DAB, Vaid N, Deepak K, Dagamajalu S, Prasad TSK. A comprehensive review on current understanding of bradykinin in COVID-19 and inflammatory diseases. Mol Biol Rep 2022; 49:9915-9927. [PMID: 35596055 PMCID: PMC9122735 DOI: 10.1007/s11033-022-07539-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 04/28/2022] [Indexed: 12/28/2022]
Abstract
Bradykinin, a member of the kallikrein–kinin system (KKS), is a potent, short-lived vasoactive peptide that acts as a vasodilator and an inflammatory mediator in a number of signaling mechanisms. Bradykinin induced signaling is mediated through kinin B1 (BDKRB1) and B2 (BDKRB2) transmembrane receptors coupled with different subunits of G proteins (Gαi/Gα0, Gαq and Gβ1γ2). The bradykinin-mediated signaling mechanism activates excessive pro-inflammatory cytokines, including IL-6, IL-1β, IL-8 and IL-2. Upregulation of these cytokines has implications in a wide range of clinical conditions such as inflammation leading to fibrosis, cardiovascular diseases, and most recently, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). In SARS-CoV-2 infection, bradykinin is found to be at raised levels and is reported to trigger a diverse array of symptoms. All of this brings bradykinin to the core point as a molecule of immense therapeutic value. Our understanding of its involvement in various pathways has expanded with time. Therefore, there is a need to look at the overall picture that emerges from the developments made by deciphering the bradykinin mediated signaling mechanisms involved in the pathological conditions. It will help devise strategies for developing better treatment modalities in the implicated diseases. This review summarizes the current state of knowledge on bradykinin mediated signaling in the diverse conditions described above, with a marked emphasis on the therapeutic potential of targeting the bradykinin receptor.
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Affiliation(s)
- Devasahayam Arokiar Balaya Rex
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Neelanchal Vaid
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - K Deepak
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Shobha Dagamajalu
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - T S Keshava Prasad
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India.
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Specific Targeting of Plasma Kallikrein for Treatment of Hereditary Angioedema: A Revolutionary Decade. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2022; 10:716-722. [PMID: 34838707 DOI: 10.1016/j.jaip.2021.11.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 10/01/2021] [Accepted: 11/19/2021] [Indexed: 11/21/2022]
Abstract
Hereditary angioedema (HAE) is a rare, chronic, genetic disease that presents with nonpruritic angioedema of the face, extremities, airway (can be life-threatening), genitourinary system, and abdomen. These symptoms can significantly impair daily activities. Hereditary angioedema is classified into HAE owing to a deficiency of functional C1INH (HAE-C1INH) or HAE with normal C1INH (HAE-nl-C1INH). Both type I and II HAE-C1INH result from inherited or spontaneous mutations in the SERPING1 gene, which encodes for C1INH. These mutations result in C1INH dysfunction, leading to uncontrolled plasma kallikrein activity with excessive bradykinin production. Bradykinin receptor activation leads to vasodilation, increased vascular permeability, and smooth muscle contractions, resulting in submucosal angioedema through fluid extravasation. Hereditary angioedema nl-C1INH is caused by either a known or unknown genetic mutation. The underlying mechanism of HAE-nl-C1INH is less well understood but is thought to be related to bradykinin signaling. Plasma kallikrein inhibitors have been developed to inhibit the kallikrein-kinin pathway to prevent (prophylactic) and treat on-demand (acute) HAE attacks. Several of these medications are delivered through subcutaneous or intravenous injection, although new and emerging therapies include oral formulations. This article provides a historical review and describes the evolving landscape of available kallikrein inhibitors to treat HAE-C1INH.
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Rex DAB, Deepak K, Vaid N, Dagamajalu S, Kandasamy RK, Flo TH, Keshava Prasad TS. A modular map of Bradykinin-mediated inflammatory signaling network. J Cell Commun Signal 2021; 16:301-310. [PMID: 34714516 PMCID: PMC8554507 DOI: 10.1007/s12079-021-00652-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 10/03/2021] [Indexed: 12/15/2022] Open
Abstract
Bradykinin, a member of the kallikrein-kinin system (KKS), is associated with an inflammatory response pathway with diverse vascular permeability functions, including thrombosis and blood coagulation. In majority, bradykinin signals through Bradykinin Receptor B2 (B2R). B2R is a G protein-coupled receptor (GPCR) coupled to G protein family such as Gαqs, Gαq/Gα11, Gαi1, and Gβ1γ2. B2R stimulation leads to the activation of a signaling cascade of downstream molecules such as phospholipases, protein kinase C, Ras/Raf-1/MAPK, and PI3K/AKT and secondary messengers such as inositol-1,4,5-trisphosphate, diacylglycerol and Ca2+ ions. These secondary messengers modulate the production of nitric oxide or prostaglandins. Bradykinin-mediated signaling is implicated in inflammation, chronic pain, vasculopathy, neuropathy, obesity, diabetes, and cancer. Despite the biomedical importance of bradykinin, a resource of bradykinin-mediated signaling pathway is currently not available. Here, we developed a pathway resource of signaling events mediated by bradykinin. By employing data mining strategies in the published literature, we describe an integrated pathway reaction map of bradykinin consisting of 233 reactions. Bradykinin signaling pathway events included 25 enzyme catalysis reactions, 12 translocations, 83 activation/inhibition reactions, 11 molecular associations, 45 protein expression and 57 gene regulation events. The pathway map is made publicly available on the WikiPathways Database with the ID URL: https://www.wikipathways.org/index.php/Pathway:WP5132. The bradykinin-mediated signaling pathway map will facilitate the identification of novel candidates as therapeutic targets for diseases associated with dysregulated bradykinin signaling.
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Affiliation(s)
- D A B Rex
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - K Deepak
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Neelanchal Vaid
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India
| | - Shobha Dagamajalu
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India.
| | - Richard Kumaran Kandasamy
- Centre of Molecular Inflammation Research (CEMIR), and Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, 7491, Trondheim, Norway.,College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, UAE
| | - Trude Helen Flo
- Centre of Molecular Inflammation Research (CEMIR), and Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - T S Keshava Prasad
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, 575018, India.
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Fandaros M, Joseph K, Kaplan AP, Rubenstein DA, Ghebrehiwet B, Yin W. gC1qR Antibody Can Modulate Endothelial Cell Permeability in Angioedema. Inflammation 2021; 45:116-128. [PMID: 34494203 DOI: 10.1007/s10753-021-01532-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/23/2021] [Accepted: 07/31/2021] [Indexed: 10/20/2022]
Abstract
Angioedema is characterized by swelling of the skin or mucous membranes. Overproduction of the vasodilator bradykinin (BK) is an important contributor to the disease pathology, which causes rapid increase in vascular permeability. BK formation on endothelial cells results from high molecular weight kininogen (HK) interacting with gC1qR, the receptor for the globular heads of C1q, the first component of the classical pathway of complement. Endothelial cells are sensitive to blood-flow-induced shear stress and it has been shown that shear stress can modulate gC1qR expression. This study aimed to determine the following: (1) how BK or angioedema patients' (HAE) plasma affected endothelial cell permeability and gC1qR expression under shear stress, and (2) if monoclonal antibody (mAb) 74.5.2, which recognizes the HK binding site on gC1qR, had an inhibitory effect in HK binding to endothelial cells. Human dermal microvascular endothelial cells (HDMECs) grown on Transwell inserts were exposed to shear stress in the presence of HAE patients' plasma. Endothelial cell permeability was measured using FITC-conjugated bovine serum albumin. gC1qR expression and HK binding to endothelial cell surface was measured using solid-phase ELISA. Cell morphology was quantified using immunofluorescence microscopy. The results demonstrated that BK at 1 µg/mL, but not HAE patients' plasma and/or shear stress, caused significant increases in HDMEC permeability. The mAb 74.5.2 could effectively inhibit HK binding to recombinant gC1qR, and reduce HAE patients' plasma-induced HDMEC permeability change. These results suggested that monoclonal antibody to gC1qR, i.e., 74.5.2, could be potentially used as an effective therapeutic reagent to prevent angioedema.
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Affiliation(s)
- Marina Fandaros
- Department of Biomedical Engineering, Stony Brook University, NY, Stony Brook, USA
| | - Kusumam Joseph
- Department of Medicine, Medical University of South Carolina, Charleston, SC, USA.,BioCryst Pharmaceuticals Inc., Durham, NC, 27703, USA
| | - Allen P Kaplan
- Department of Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - David A Rubenstein
- Department of Biomedical Engineering, Stony Brook University, NY, Stony Brook, USA
| | | | - Wei Yin
- Department of Biomedical Engineering, Stony Brook University, NY, Stony Brook, USA.
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12
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Hews-Girard J, Goodyear MD. Psychosocial burden of type 1 and 2 hereditary angioedema: a single-center Canadian cohort study. Allergy Asthma Clin Immunol 2021; 17:61. [PMID: 34187550 PMCID: PMC8244202 DOI: 10.1186/s13223-021-00563-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 06/12/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hereditary angioedema (HAE) is a rare but serious disorder associated with a multifaceted burden of illness including a high prevalence of psychiatric symptoms and impaired health-related quality of life (HRQoL). Despite recent efforts to clarify the psychosocial implications of HAE, important gaps still remain. The aim of this study was to characterize the psychosocial burden associated with HAE types 1 and 2. METHODS Type 1 or 2 HAE patients (n = 17), aged 19 years or older, completed the Depression, Anxiety, Stress Scale (DASS-21) and the DSM-5 cross cutting measures to identify psychiatric symptomatology, Angioedema Quality of Life Questionnaire (AE-QoL) and the Short-Form 36-Item Health Survey version 2 (SF-36v2) to assess disease-related and generic HRQoL respectively, and the Work Productivity and Activity Impairment Questionnaire (WPAI) to measure impact on work productivity and daily activities. Data analyses were conducted using SPSS statistical software (Version 25.0; IBM, Armonk, NY). Descriptive statistics were used to summarize continuous demographics and clinical characteristics and outcomes of interest while frequency distributions were used for categorical variables. T tests were used to compare SF-36v2 domain scores to Canadian norms and sex differences in scale scores. RESULTS Depression [DASS-21 score = 6.8 ± 10.2; n = 12 (71%)] anxiety [DASS-21 score = 6.2 ± 8.2; n = 13 (76%)] and stress [DASS-21 score = 10 ± 10.2; n = 13 (76%)] were prevalent. Other psychiatric symptoms warranting inquiry included mania (n = 14, 82.4%), anger (n = 14, 82.4%), sleep disturbances (n = 13, 76.5%), somatic symptoms (n = 11, 64.7%) and impaired personality functioning (n = 9, 52.9%). Mean AE-QoL score was 39 ± 18.2. Mean SF-36v2 domain scores were significantly lower than Canadian normative data for the entire sample (p < 0.05). Impairment in work productivity was minimal; mean activity impairment was 20.6% ± 21.1% [n = 11 (64.7%)]. Female participants reported significantly greater HAE-related stress [DASS; t(15) = - 2.2, p = 0.04], greater HAE-related fears [AEQoL; t(5.6) = - 2.7, p = 0.04), and lower SF-36v2 domain scores than male patients. CONCLUSIONS Study findings offer specific, valuable insight into the psychosocial burden of HAE with the potential to improve clinical management of HAE. Best practices for effective management of HAE should include providing holistic care to address the psychosocial and mental health of HAE patients.
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Affiliation(s)
- Julia Hews-Girard
- Southern Alberta Rare Blood and Bleeding Disorders Comprehensive Care Program, Calgary, AB, T2N 2T9, Canada. .,Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 1N9, Canada.
| | - Marilyn Dawn Goodyear
- Southern Alberta Rare Blood and Bleeding Disorders Comprehensive Care Program, Calgary, AB, T2N 2T9, Canada.,Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 1N9, Canada
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13
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Pólai Z, Balla Z, Andrási N, Kőhalmi KV, Temesszentandrási G, Benedek S, Varga L, Farkas H. A follow-up survey of patients with acquired angioedema due to C1-inhibitor deficiency. J Intern Med 2021; 289:547-558. [PMID: 33215769 DOI: 10.1111/joim.13182] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Acquired angioedema due to C1-inhibitor deficiency (C1-INH-AAE) is a rare form of bradykinin-mediated angioedema. It is diagnosed by complement testing; its treatment consists of the management of angioedema (AE) attacks and of underlying disease. OBJECTIVE Evaluate the results of the clinical follow-up of patients with C1-INH-AAE. METHODS Between 1999 and 2020, 3938 patients with angioedema were evaluated, and 17 diagnosed with acquired C1-INH deficiency were followed-up. RESULTS Mean age of the 17 patients was 61 years at diagnosis. In 33%, ACE inhibitors provoked AE attacks. Autoantibodies against C1-INH were detected in 10 patients at diagnosis and in a further patient during follow-up. The AE attacks involved the skin in 70.6%, the upper airways in 41.2% and the tongue/lip in 52.9% of patients. Twelve of the 17 patients had an underlying condition, mainly (n = 11) lymphoproliferative disease. In 10 patients diagnosed with a haematological disorder, AAE symptoms preceded the onset of the latter. One patient has not experienced an AE attack since diagnosis. Twelve patients were treated for angioedema attacks, and 32% of the attacks required acute treatment. PdC1-INH was used to relieve AE attacks, and rituximab for the treatment of underlying disease (in six patients). Six patients had multiple AE attacks before any treatment. The symptom-free period increased in five patients after the on-demand administration of pdC1-INH concentrate and following treatment of the underlying disease in two patients. CONCLUSION Early diagnosis of C1-INH-AAE and underlying disease is indispensable to reduce disease burden by introducing appropriate, individualized treatment and regular follow-up.
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Affiliation(s)
- Zs Pólai
- From the, Hungarian Angioedema Center of Reference and Excellence, Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary
| | - Zs Balla
- From the, Hungarian Angioedema Center of Reference and Excellence, Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary
| | - N Andrási
- From the, Hungarian Angioedema Center of Reference and Excellence, Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary.,2nd Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - K V Kőhalmi
- From the, Hungarian Angioedema Center of Reference and Excellence, Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary.,Buda Hospital of the Hospitaller Order of Saint John of God, Rheumatology Center, Budapest, Hungary
| | - Gy Temesszentandrási
- Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary
| | - Sz Benedek
- Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary
| | - L Varga
- From the, Hungarian Angioedema Center of Reference and Excellence, Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary
| | - H Farkas
- From the, Hungarian Angioedema Center of Reference and Excellence, Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary
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14
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A Robust Bioassay of the Human Bradykinin B 2 Receptor that Extends Molecular and Cellular Studies: The Isolated Umbilical Vein. Pharmaceuticals (Basel) 2021; 14:ph14030177. [PMID: 33668382 PMCID: PMC7996148 DOI: 10.3390/ph14030177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/19/2021] [Accepted: 02/21/2021] [Indexed: 11/18/2022] Open
Abstract
Bradykinin (BK) has various physiological and pathological roles. Medicinal chemistry efforts targeted toward the widely expressed BK B2 receptor (B2R), a G-protein-coupled receptor, were primarily aimed at developing antagonists. The only B2R antagonist in clinical use is the peptide icatibant, approved to abort attacks of hereditary angioedema. However, the anti-inflammatory applications of B2R antagonists are potentially wider. Furthermore, the B2R antagonists notoriously exhibit species-specific pharmacological profiles. Classical smooth muscle contractility assays are exploited over a time scale of several hours and support determining potency, competitiveness, residual agonist activity, specificity, and reversibility of pharmacological agents. The contractility assay based on the isolated human umbilical vein, expressing B2R at physiological density, was introduced when investigating the first non-peptide B2R antagonist (WIN 64338). Small ligand molecules characterized using the assay include the exquisitely potent competitive antagonist, Pharvaris Compound 3 or the partial agonist Fujisawa Compound 47a. The umbilical vein assay is also useful to verify pharmacologic properties of special peptide B2R ligands, such as the carboxypeptidase-activated latent agonists and fluorescent probes. Furthermore, the proposed agonist effect of tissue kallikrein on the B2R has been disproved using the vein. This assay stands in between cellular and molecular pharmacology and in vivo studies.
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15
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Abstract
The future therapies for hereditary angioedema will likely involve the development of oral agents as alternatives to parenteral administration of drugs, specific targeting of proteins and/or enzymes that are not yet possible (e.g., factor XIIa), new agents that target the β₂ receptor with sustained action properties, testing of products to determine whether the β1 receptor contributes significantly to attacks of angioedema, disrupting protein synthesis by using RNA technology as an alternative to enzyme inhibition, and, finally, gene therapy to attempt to cure the disease. Complete inhibition of attacks may well require sustained blood levels of C1 inhibitor that exceed 85% of normal, and it may be possible to delete the prekallikrein gene (analogous to familial prekallikrein deficiency), which is the one factor that might alleviate bradykinin formation, even by factor XII-independent initiating mechanisms, with the possible exception of Mannose Associated Serine Protease 1 (MASP-1) cleavage of high molecular weight kininogen (HK). Deletion of the light chain of high-molecular-weight kininogen would eliminate all possibilities for bradykinin formation, except tissue kallikrein cleavage of low-molecular-weight kininogen to support normal physiologic function to at least 50%.
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16
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Czick M, Shapter C, Shapter R. COVID's Razor: RAS Imbalance, the Common Denominator Across Disparate, Unexpected Aspects of COVID-19. Diabetes Metab Syndr Obes 2020; 13:3169-3192. [PMID: 32982349 PMCID: PMC7495349 DOI: 10.2147/dmso.s265518] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 08/04/2020] [Indexed: 12/25/2022] Open
Abstract
A modern iteration of Occam's Razor posits that "the simplest explanation is usually correct." Coronavirus Disease 2019 involves widespread organ damage and uneven mortality demographics, deemed unexpected from what was originally thought to be "a straightforward respiratory virus." The simplest explanation is that both the expected and unexpected aspects of COVID-19 share a common mechanism. Silent hypoxia, atypical acute respiratory distress syndrome (ARDS), stroke, olfactory loss, myocarditis, and increased mortality rates in the elderly, in men, in African-Americans, and in patients with obesity, diabetes, and cancer-all bear the fingerprints of the renin-angiotensin system (RAS) imbalance, suggesting that RAS is the common culprit. This article examines what RAS is and how it works, then from that baseline, the article presents the evidence suggesting RAS involvement in the disparate manifestations of COVID-19. Understanding the deeper workings of RAS helps one make sense of severe COVID-19. In addition, recognizing the role of RAS imbalance suggests potential routes to mitigate COVID-19 severity.
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Affiliation(s)
- Maureen Czick
- University of Connecticut, Department of Anesthesia, Farmington, CT, USA
| | | | - Robert Shapter
- Independent Consultant ( Medical Research, Medical Communications, and Medical Education), Hartford, CT, USA
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17
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Gambardella J, Sorriento D, Bova M, Rusciano M, Loffredo S, Wang X, Petraroli A, Carucci L, Mormile I, Oliveti M, Bruno Morelli M, Fiordelisi A, Spadaro G, Campiglia P, Sala M, Trimarco B, Iaccarino G, Santulli G, Ciccarelli M. Role of Endothelial G Protein-Coupled Receptor Kinase 2 in Angioedema. Hypertension 2020; 76:1625-1636. [PMID: 32895019 DOI: 10.1161/hypertensionaha.120.15130] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Excessive BK (bradykinin) stimulation is responsible for the exaggerated permeabilization of the endothelium in angioedema. However, the molecular mechanisms underlying these responses have not been investigated. BK receptors are Gq-protein-coupled receptors phosphorylated by GRK2 (G protein-coupled receptor kinase 2) with a hitherto unknown biological and pathophysiological significance. In the present study, we sought to identify the functional role of GRK2 in angioedema through the regulation of BK signaling. We found that the accumulation of cytosolic Ca2+ in endothelial cells induced by BK was sensitive to GRK2 activity, as it was significantly augmented by inhibiting the kinase. Accordingly, permeabilization and NO production induced by BK were enhanced, as well. In vivo, mice with reduced GRK2 levels in the endothelium (Tie2-CRE/GRK2fl+/fl-) exhibited an increased response to BK in terms of vascular permeability and extravasation. Finally, patients with reduced GRK2 levels displayed a severe phenotype of angioedema. Taken together, these findings establish GRK2 as a novel pivotal regulator of BK signaling with an essential role in the pathophysiology of vascular permeability and angioedema.
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Affiliation(s)
- Jessica Gambardella
- From the Department of Advanced Biomedical Science (J.G., D.S., A.F., B.T., G.I., G. Santulli), University of Naples Federico II, NA, Italy.,Division of Cardiology, Department of Medicine, Wilf Family Cardiovascular Research Institute (J.G., X.W., M.B.M., G. Santulli), Albert Einstein College of Medicine, Montefiore University Hospital, NY.,Department of Molecular Pharmacology, Fleischer Institute for Diabetes and Metabolism (FIDAM) (J.G., X.W., M.B.M., G. Santulli), Albert Einstein College of Medicine, Montefiore University Hospital, NY.,International Translational Research and Medical Education Consortium (ITME), NA, Italy (J.G., B.T., G. Santulli)
| | - Daniela Sorriento
- Department of Translational Medical Sciences and Interdepartmental Center for Research in Basic and Clinical Immunology Sciences (M.B., S.L., A.P., L.C., I.M., G. Spadaro), University of Naples Federico II, NA, Italy
| | - Maria Bova
- Department of Translational Medical Sciences and Interdepartmental Center for Research in Basic and Clinical Immunology Sciences (M.B., S.L., A.P., L.C., I.M., G. Spadaro), University of Naples Federico II, NA, Italy
| | - Mariarosaria Rusciano
- Montevergine Hospital, Mercogliano, Italy (M.R.).,Department of Medicine and Surgery (M.R., M.O., M.C.), University of Salerno, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences and Interdepartmental Center for Research in Basic and Clinical Immunology Sciences (M.B., S.L., A.P., L.C., I.M., G. Spadaro), University of Naples Federico II, NA, Italy
| | - Xujun Wang
- Division of Cardiology, Department of Medicine, Wilf Family Cardiovascular Research Institute (J.G., X.W., M.B.M., G. Santulli), Albert Einstein College of Medicine, Montefiore University Hospital, NY.,Department of Molecular Pharmacology, Fleischer Institute for Diabetes and Metabolism (FIDAM) (J.G., X.W., M.B.M., G. Santulli), Albert Einstein College of Medicine, Montefiore University Hospital, NY
| | - Angelica Petraroli
- Department of Translational Medical Sciences and Interdepartmental Center for Research in Basic and Clinical Immunology Sciences (M.B., S.L., A.P., L.C., I.M., G. Spadaro), University of Naples Federico II, NA, Italy
| | - Laura Carucci
- Department of Translational Medical Sciences and Interdepartmental Center for Research in Basic and Clinical Immunology Sciences (M.B., S.L., A.P., L.C., I.M., G. Spadaro), University of Naples Federico II, NA, Italy
| | - Ilaria Mormile
- Department of Translational Medical Sciences and Interdepartmental Center for Research in Basic and Clinical Immunology Sciences (M.B., S.L., A.P., L.C., I.M., G. Spadaro), University of Naples Federico II, NA, Italy
| | - Marco Oliveti
- Department of Medicine and Surgery (M.R., M.O., M.C.), University of Salerno, Italy
| | - Marco Bruno Morelli
- Division of Cardiology, Department of Medicine, Wilf Family Cardiovascular Research Institute (J.G., X.W., M.B.M., G. Santulli), Albert Einstein College of Medicine, Montefiore University Hospital, NY.,Department of Molecular Pharmacology, Fleischer Institute for Diabetes and Metabolism (FIDAM) (J.G., X.W., M.B.M., G. Santulli), Albert Einstein College of Medicine, Montefiore University Hospital, NY
| | - Antonella Fiordelisi
- From the Department of Advanced Biomedical Science (J.G., D.S., A.F., B.T., G.I., G. Santulli), University of Naples Federico II, NA, Italy
| | - Giuseppe Spadaro
- Department of Translational Medical Sciences and Interdepartmental Center for Research in Basic and Clinical Immunology Sciences (M.B., S.L., A.P., L.C., I.M., G. Spadaro), University of Naples Federico II, NA, Italy
| | - Pietro Campiglia
- Division of Biomedicine, Department of Pharmaceutical Science (P.C., M.S.), University of Salerno, Italy
| | - Marina Sala
- Division of Biomedicine, Department of Pharmaceutical Science (P.C., M.S.), University of Salerno, Italy
| | - Bruno Trimarco
- International Translational Research and Medical Education Consortium (ITME), NA, Italy (J.G., B.T., G. Santulli)
| | - Guido Iaccarino
- From the Department of Advanced Biomedical Science (J.G., D.S., A.F., B.T., G.I., G. Santulli), University of Naples Federico II, NA, Italy
| | - Gaetano Santulli
- From the Department of Advanced Biomedical Science (J.G., D.S., A.F., B.T., G.I., G. Santulli), University of Naples Federico II, NA, Italy.,Division of Cardiology, Department of Medicine, Wilf Family Cardiovascular Research Institute (J.G., X.W., M.B.M., G. Santulli), Albert Einstein College of Medicine, Montefiore University Hospital, NY.,Department of Molecular Pharmacology, Fleischer Institute for Diabetes and Metabolism (FIDAM) (J.G., X.W., M.B.M., G. Santulli), Albert Einstein College of Medicine, Montefiore University Hospital, NY.,International Translational Research and Medical Education Consortium (ITME), NA, Italy (J.G., B.T., G. Santulli)
| | - Michele Ciccarelli
- Department of Medicine and Surgery (M.R., M.O., M.C.), University of Salerno, Italy
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18
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Marceau F, Bachelard H, Charest-Morin X, Hébert J, Rivard GE. In Vitro Modeling of Bradykinin-Mediated Angioedema States. Pharmaceuticals (Basel) 2020; 13:ph13090201. [PMID: 32824891 PMCID: PMC7559923 DOI: 10.3390/ph13090201] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 12/15/2022] Open
Abstract
Kinins (peptides related to bradykinin, BK) are formed from circulating substrates, the kininogens, by the action of two proteases, the kallikreins. The only clinical application of a BK receptor ligand, the B2 receptor antagonist icatibant, is the treatment of the rare hereditary angioedema (HAE) caused by the deficiency of C1-esterase inhibitor (C1-INH). Less common forms of HAE (genetic variants of factor XII, plasminogen, kininogen) are presumably mediated by increased BK formation. Acquired forms of BK-mediated angioedema, such as that associated with angiotensin-I converting enzyme (ACE) inhibition, are also known. Antibody-based analytical techniques are briefly reviewed, and support that kinins are extremely short-lived, prominently cleared by ACE. Despite evidence of continuous activation of the kallikrein–kinin system in HAE, patients are not symptomatic most of the time and their blood or plasma obtained during remission does not generate excessive immunoreactive BK (iBK), suggesting effective homeostatic mechanisms. HAE-C1-INH and HAE-FXII plasmas are both hyperresponsive to fibrinolysis activation. On another hand, we suggested a role for the alternate tissue kallikrein–kinin system in patients with a plasminogen mutation. The role of the BK B1 receptor is still uncertain in angioedema states. iBK profiles under in vitro stimulation provide fresh insight into the physiopathology of angioedema.
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Affiliation(s)
- François Marceau
- Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1V 4G2, Canada; (H.B.); (X.C.-M.)
- Correspondence:
| | - Hélène Bachelard
- Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1V 4G2, Canada; (H.B.); (X.C.-M.)
| | - Xavier Charest-Morin
- Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1V 4G2, Canada; (H.B.); (X.C.-M.)
| | - Jacques Hébert
- Service D’allergie, CHU de Québec-Université Laval, Québec, QC G1V 4G2, Canada;
| | - Georges E. Rivard
- CHU Sainte-Justine, Université de Montréal, Montréal, QC H3T 1C5, Canada;
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19
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Affiliation(s)
- Paula J Busse
- From the Division of Clinical Immunology and Allergy, Icahn School of Medicine at Mount Sinai, New York (P.J.B.); and the Department of Medicine, University of California, San Diego, San Diego (S.C.C.)
| | - Sandra C Christiansen
- From the Division of Clinical Immunology and Allergy, Icahn School of Medicine at Mount Sinai, New York (P.J.B.); and the Department of Medicine, University of California, San Diego, San Diego (S.C.C.)
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20
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Ghebrehiwet B, Geisbrecht BV, Xu X, Savitt AG, Peerschke EIB. The C1q Receptors: Focus on gC1qR/p33 (C1qBP, p32, HABP-1) 1. Semin Immunol 2019; 45:101338. [PMID: 31744753 DOI: 10.1016/j.smim.2019.101338] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 10/24/2019] [Accepted: 10/24/2019] [Indexed: 10/25/2022]
Abstract
In the past several years, a number of C1q binding surface proteins or receptors have been described. This is not of course surprising considering the complexity of the C1q molecule and its ability to bind to a wide range of cellular and plasma proteins via both its collagen-like [cC1q] region and its heterotrimeric globular heads [gC1q] each of which in turn is capable of binding a specific ligand. However, while each of these "receptor" molecules undoubtedly plays a specific function within its restricted microenvironment, and therefore merits full attention, this review nonetheless, will singularly focus on the structure and function of gC1qR-a multi-functional and multi-compartmental protein, which plays an important role in inflammation, infection, and cancer. Although first identified as a receptor for C1q, gC1qR has been shown to bind to a plethora of proteins found in plasma, on the cell surface and on pathogenic microorganisms. The plasma proteins that bind to gC1qR are mostly blood coagulation proteins and include high molecular weight kininogen [HK], Factor XII [Hageman factor], fibrinogen, thrombin [FII], and multimeric vitronectin. This suggests that gC1qR can play an important role in modulating not only of fibrin formation, particularly at local sites of immune injury and/or inflammation, but by activating the kinin/kallikrein system, it is also able to generate, bradykinin, a powerful vasoactive peptide that is largely responsible for the swelling seen in angioedema. Another important function of gC1qR is in cancer, where it has been shown to play a role in tumor cell survival, growth and metastatic invasion by interacting with critical molecules in the tumor cell microenvironment including those of the complement system and kinin system. Finally, by virtue of its ability to interact with a growing list of pathogen-associated molecules, including bacterial and viral ligands, gC1qR is becoming recognized as an important pathogen recognition receptor [PRR]. Given the numerous roles it plays in a growing list of disease settings, gC1qR has now become a potential target for the development of monoclonal antibody-based and/or small molecule-based therapies.
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Affiliation(s)
- Berhane Ghebrehiwet
- The Departments of Medicine, Stony Brook University, Stony Brook, NY 11794-8161 USA.
| | - Brian V Geisbrecht
- Kansas State University, Department of Biochemistry and Molecular Biophysics Manhattan, KS 66506 USA
| | - Xin Xu
- Kansas State University, Department of Biochemistry and Molecular Biophysics Manhattan, KS 66506 USA
| | - Anne G Savitt
- The Departments of Medicine, Stony Brook University, Stony Brook, NY 11794-8161 USA
| | - Ellinor I B Peerschke
- The Department of Laboratory Medicine, Memorial Sloan-Kettering Cancer Center, New York, 10065, USA
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21
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Germenis AE, Cicardi M. Driving towards Precision Medicine for angioedema without wheals. J Autoimmun 2019; 104:102312. [PMID: 31402201 DOI: 10.1016/j.jaut.2019.102312] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 07/24/2019] [Indexed: 01/09/2023]
Abstract
Evidence accumulated over the last two decades indicates that recurrent angioedema without wheals constitutes a diverse family of disorders with a much higher complexity than was previously regarded. Indicatively, during the last two years, novel variants of three genes other than SERPING1 and F12 have been identified in association with hereditary angioedema. Most interestingly, functional studies of at least one of these variants (the variant c.807G > T of ANGPT1 gene) imply the existence of a new disease endotype in which the altered bradykinin metabolism and function does not play a central role. Therefore, using conventional approaches, it seems that the complexity of this disease cannot be sufficiently elucidated and any attempt to interrelate its many diverse aspects seems unrealistic. Similar to other rare and chronic diseases, a Precision Medicine approach, discovering the right target and giving "the right drug, for the right patient, at the right time, every time" seems the optimal future practice. Herein, we review recent data challenging and dictating the need for a switch of angioedema research into high-throughput approaches and we present the expected advantages for better understanding of the disease and patients management.
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Affiliation(s)
- Anastasios E Germenis
- Department of Immunology & Histocompatibility, School of Medicine, University of Thessaly, Larissa, Greece.
| | - Marco Cicardi
- Dipartimento di Scienze Biomediche e Cliniche Luigi Sacco, Universita Degli Studi di Milano, IRCCS ICS Maugeri Milano via Camaldoli, Italy
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22
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Shen Y, Oda T, Tamura N, Kohmura-Kobayashi Y, Furuta-Isomura N, Yaguchi C, Uchida T, Suzuki K, Itoh H, Kanayama N. Elevated bradykinin receptor type 1 expression in postpartum acute myometritis: Possible involvement in augmented interstitial edema of the atonic gravid uterus. J Obstet Gynaecol Res 2019; 45:1553-1561. [PMID: 31179603 DOI: 10.1111/jog.14012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 05/13/2019] [Indexed: 11/29/2022]
Abstract
AIM Uterine atony is a major cause of postpartum hemorrhage. We recently proposed a new concept for the histopathophysiology of refractory uterine atony, postpartum acute myometritis (PAM), characterized by acute inflammatory changes with massive stromal edema, increased numbers of complement C5a receptors and diffuse mast cell activation in the myometrium. We herein focused on the possible involvement of the kinin-kallikrein system in the rapid development of interstitial edema in PAM, particularly bradykinin receptor type 1 (B1R), which is up-regulated under inflammatory conditions. The present study investigated B1R expression with uterine interstitial edema in PAM. METHODS Our institution plays an important role in a Japanese amniotic fluid embolism registry project. We selected PAM cases from uterine samples delivered to us for further analyses between 2012 and 2017. Control tissues were collected during cesarean section and planned hysterectomy. B1R expression was semi-quantitatively measured by immunohistochemistry, while uterine interstitial edema was estimated by semi-quantitative measurements of the alpha smooth muscle actin-negative area using immunohistochemistry. RESULTS There were 36 and 8 cases in the PAM and control groups, respectively. The alpha smooth muscle actin-negative area was increased in the PAM group, concomitant with the significant up-regulation of B1R expression in uterine smooth muscle cells, vascular endothelial cells, and neutrophils. A positive correlation was observed between these two factors. CONCLUSION We demonstrated the up-regulated expression of B1R in the myometrium and its positive correlation with histologically estimated interstitial edema, suggesting the contribution of the kinin-kallikrein-B1R system to the development of interstitial edema in PAM cases.
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Affiliation(s)
- Yi Shen
- Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Tomoaki Oda
- Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Naoaki Tamura
- Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yukiko Kohmura-Kobayashi
- Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Naomi Furuta-Isomura
- Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Chizuko Yaguchi
- Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Toshiyuki Uchida
- Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kazunao Suzuki
- Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hiroaki Itoh
- Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Naohiro Kanayama
- Department of Obstetrics & Gynecology, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Wu MA, Tsvirkun D, Bureau L, Boccon-Gibod I, Inglebert M, Duperray A, Bouillet L, Misbah C, Cicardi M. Paroxysmal Permeability Disorders: Development of a Microfluidic Device to Assess Endothelial Barrier Function. Front Med (Lausanne) 2019; 6:89. [PMID: 31069229 PMCID: PMC6491734 DOI: 10.3389/fmed.2019.00089] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 04/09/2019] [Indexed: 11/28/2022] Open
Abstract
Background: Paroxysmal Permeability Disorders (PPDs) are pathological conditions caused by periodic short lasting increase of endothelial permeability, in the absence of inflammatory, degenerative, ischemic vascular injury. PPDs include primary angioedema, idiopathic systemic capillary leak syndrome and some rare forms of localized retroperitoneal-mediastinal edema. Aim: to validate a microfluidic device to study endothelial permeability in flow conditions. Materials and Methods: we designed a microchannel network (the smallest channel is 30μm square section). Human Umbilical Vein Endothelial Cells (HUVECs) were cultured under constant shear stress in the networks. Endothelial permeability assessment was based on interaction of biotinylated fibronectin used as a matrix for HUVECs and FITC-conjugated avidin. The increase in endothelial permeability was identified as changes in fluorescence intensity detected by confocal fluorescent microscopy. Results: The microchannels were constantly perfused with a steady flow of culture medium, ensuring a physiologically relevant level of shear stress at the wall of ~0.2 Pa. Our preliminary results demonstrated that circulation of culture medium or plasma from healthy volunteers was associated with low fluorescence of fibronectin matrix. When bradykinin diluted in culture medium was perfused, an increase in average fluorescence was detected. Conclusion: Our microvasculature model is suitable to study endothelial functions in physiological flow conditions and in the presence of factors like bradykinin known as mediator of several PPDs. Therefore, it can be a promising tool to better understand the mechanisms underlying disorders of endothelial permeability.
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Affiliation(s)
- Maddalena Alessandra Wu
- Department of Biomedical and Clinical Sciences, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, University of Milan, Milan, Italy
| | - Daria Tsvirkun
- Univ. Grenoble Alpes, LIPHY, Grenoble, France.,CNRS, LIPHY, Grenoble, France.,Belozersky Institute of Physico-chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Lionel Bureau
- Univ. Grenoble Alpes, LIPHY, Grenoble, France.,CNRS, LIPHY, Grenoble, France
| | - Isabelle Boccon-Gibod
- Department of Internal Medicine, Centre Hospitalier Universitaire de Grenoble, Grenoble, France
| | | | - Alain Duperray
- Univ. Grenoble Alpes, IAB, Grenoble, France.,INSERM, IAB, Grenoble, France
| | - Laurence Bouillet
- Department of Internal Medicine, Centre Hospitalier Universitaire de Grenoble, Grenoble, France
| | - Chaouqi Misbah
- Univ. Grenoble Alpes, LIPHY, Grenoble, France.,CNRS, LIPHY, Grenoble, France
| | - Marco Cicardi
- IRCCS-Istituti Clinici Scientifici Maugeri, University of Milan, Milan, Italy
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Transcriptomics and Immunological Analyses Reveal a Pro-Angiogenic and Anti-Inflammatory Phenotype for Decidual Endothelial Cells. Int J Mol Sci 2019; 20:ijms20071604. [PMID: 30935090 PMCID: PMC6479455 DOI: 10.3390/ijms20071604] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/27/2019] [Accepted: 03/28/2019] [Indexed: 01/09/2023] Open
Abstract
Background: In pregnancy, excessive inflammation and break down of immunologic tolerance can contribute to miscarriage. Endothelial cells (ECs) are able to orchestrate the inflammatory processes by secreting pro-inflammatory mediators and bactericidal factors by modulating leakiness and leukocyte trafficking, via the expression of adhesion molecules and chemokines. The aim of this study was to analyse the differences in the phenotype between microvascular ECs isolated from decidua (DECs) and ECs isolated from human skin (ADMECs). Methods: DECs and ADMECs were characterized for their basal expression of angiogenic factors and adhesion molecules. A range of immunological responses was evaluated, such as vessel leakage, reactive oxygen species (ROS) production in response to TNF-α stimulation, adhesion molecules expression and leukocyte migration in response to TNF-α and IFN-γ stimulation. Results: DECs produced higher levels of HGF, VEGF-A and IGFBP3 compared to ADMECs. DECs expressed adhesion molecules, ICAM-2 and ICAM-3, and a mild response to TNF-α was observed. Finally, DECs produced high levels of CXCL9/MIG and CXCL10/IP-10 in response to IFN-γ and selectively recruited Treg lymphocytes. Conclusion: DEC phenotype differs considerably from that of ADMECs, suggesting that DECs may play an active role in the control of immune response and angiogenesis at the foetal-maternal interface.
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Del Giacco SR, Firinu D, Minciullo PL, Barca MP, Manconi PE, Tartarisco G, Cristani M, Saija A, Gangemi S. Oxidative stress markers in patients with hereditary angioedema. Arch Med Sci 2019; 15:92-98. [PMID: 30697258 PMCID: PMC6348350 DOI: 10.5114/aoms.2017.66160] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 01/18/2017] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION Hereditary angioedema due to C1-INH deficiency (C1-INH-HAE) or with normal C1-INH is characterized by recurrent swellings due to uncontrolled production of vasoactive mediators, among which bradykinin (BK) is crucial. Through the binding and activation of the two human BK-receptors, kinins may have dual beneficial and deleterious effects in vascular and inflammation physiopathology by inducing oxidative stress. We aimed to assess the serum concentrations of advanced glycation end products (AGEs) and advanced oxidation protein products (AOPPs) in patients affected by HAE. MATERIAL AND METHODS Blood samples were collected to measure the serum concentrations of AGEs and AOPPs by spectrofluorimetric and spectrophotometric methods in patients affected by C1-INH-HAE and FXII-HAE during the remission state. RESULTS We showed that the circulating levels of AOPPs observed on control group (0.94 (0.36) nmol/mg) were significantly lower than those observed on the C1-INH-HAE group (1.68 (0.47) nmol/mg; p = 0.002) and FXII-HAE (1.50 (0.27) nmol/mg; p = 0.001). Moreover, the circulating levels of AGEs were significantly higher in C1-INH-HAE group (211.58 (151.05) AU/g; p = 0.02) than the FXII group (141.48 (89.59) AU/g), thus demonstrating a state of heightened oxidative stress. CONCLUSIONS Our observations show additional underlying events involved in HAE and are of central importance for further investigations of differences in bradykinin receptors signaling among the two disease subgroups.
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Affiliation(s)
| | - Davide Firinu
- Department of Medical Sciences “M. Aresu”, University of Cagliari, Cagliari, Italy
| | - Paola Lucia Minciullo
- School and Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Maria Pina Barca
- Department of Medical Sciences “M. Aresu”, University of Cagliari, Cagliari, Italy
| | - Paolo Emilio Manconi
- Department of Medical Sciences “M. Aresu”, University of Cagliari, Cagliari, Italy
| | - Gennaro Tartarisco
- National Research Council of Italy (CNR) – Institute of Applied Science and Intelligent System (ISASI), Messina Unit, Messina, Italy
| | - Mariateresa Cristani
- Department of Drug Sciences and Health Products, University of Messina, Messina, Italy
| | - Antonella Saija
- Department of Drug Sciences and Health Products, University of Messina, Messina, Italy
| | - Sebastiano Gangemi
- School and Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
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Castellano G, Divella C, Sallustio F, Montinaro V, Curci C, Zanichelli A, Bonanni E, Suffritti C, Caccia S, Bossi F, Gallone A, Schena FP, Gesualdo L, Cicardi M. A transcriptomics study of hereditary angioedema attacks. J Allergy Clin Immunol 2018; 142:883-891. [DOI: 10.1016/j.jaci.2018.03.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 02/20/2018] [Accepted: 03/28/2018] [Indexed: 01/21/2023]
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Cicardi M, Zuraw BL. Angioedema Due to Bradykinin Dysregulation. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2018; 6:1132-1141. [DOI: 10.1016/j.jaip.2018.04.022] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/25/2018] [Accepted: 04/25/2018] [Indexed: 01/08/2023]
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Nokkari A, Abou-El-Hassan H, Mechref Y, Mondello S, Kindy MS, Jaffa AA, Kobeissy F. Implication of the Kallikrein-Kinin system in neurological disorders: Quest for potential biomarkers and mechanisms. Prog Neurobiol 2018; 165-167:26-50. [PMID: 29355711 PMCID: PMC6026079 DOI: 10.1016/j.pneurobio.2018.01.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 01/15/2018] [Indexed: 01/06/2023]
Abstract
Neurological disorders represent major health concerns in terms of comorbidity and mortality worldwide. Despite a tremendous increase in our understanding of the pathophysiological processes involved in disease progression and prevention, the accumulated knowledge so far resulted in relatively moderate translational benefits in terms of therapeutic interventions and enhanced clinical outcomes. Aiming at specific neural molecular pathways, different strategies have been geared to target the development and progression of such disorders. The kallikrein-kinin system (KKS) is among the most delineated candidate systems due to its ubiquitous roles mediating several of the pathophysiological features of these neurological disorders as well as being implicated in regulating various brain functions. Several experimental KKS models revealed that the inhibition or stimulation of the two receptors of the KKS system (B1R and B2R) can exhibit neuroprotective and/or adverse pathological outcomes. This updated review provides background details of the KKS components and their functions in different neurological disorders including temporal lobe epilepsy, traumatic brain injury, stroke, spinal cord injury, Alzheimer's disease, multiple sclerosis and glioma. Finally, this work will highlight the putative roles of the KKS components as potential neurotherapeutic targets and provide future perspectives on the possibility of translating these findings into potential clinical biomarkers in neurological disease.
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Affiliation(s)
- Amaly Nokkari
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Lebanon
| | - Hadi Abou-El-Hassan
- Faculty of Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA
| | - Stefania Mondello
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Mark S Kindy
- Department of Pharmaceutical Science, College of Pharmacy, University of South Florida, Tampa, FL, USA; James A. Haley VA Medical Center, Tampa, FL, USA
| | - Ayad A Jaffa
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Lebanon; Department of Medicine, Medical University of South, Charleston, SC, USA.
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Lebanon; Center for Neuroproteomics & Biomarkers Research, Department of Psychiatry, McKnight Brain Institute, University of Florida, Gainesville, FL, USA.
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Björkqvist J, Sala-Cunill A, Renné T. Hereditary angioedema: a bradykinin-mediated swelling disorder. Thromb Haemost 2017; 109:368-74. [DOI: 10.1160/th12-08-0549] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Accepted: 11/08/2012] [Indexed: 11/05/2022]
Abstract
SummaryEdema is tissue swelling and is a common symptom in a variety of diseases. Edema form due to accumulation of fluids, either through reduced drainage or increased vascular permeability. There are multiple vascular signalling pathways that regulate vessel permeability. An important mediator that increases vascular leak is the peptide hormone bradykinin, which is the principal agent in the swelling disorder hereditary angioedema. The disease is autosomal dominant inherited and presents clinically with recurrent episodes of acute swelling that can be life-threatening involving the skin, the oropharyngeal, laryngeal, and gastrointestinal mucosa. Three different types of hereditary angiodema exist in patients. The review summarises current knowledge on the pathophysiology of hereditary angiodema and focuses on recent experimental and pharmacological findings that have led to a better understanding and new treatments for the disease.
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Demirturk M, Akpinar TS, Kose M, Gelincik A, Colakoğlu B, Buyukozturk S. Endocan: A Novel Marker of Endothelial Dysfunction in C1-Inhibitor-Deficient Hereditary Angioedema. Int Arch Allergy Immunol 2017; 174:104-107. [PMID: 29059678 DOI: 10.1159/000481256] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 09/04/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Hereditary angioedema (HAE) related to C1-inhibitor deficiency is a rare autosomal dominant disorder. Vascular cell adhesion molecules (VCAM) are known as endothelial activation markers. Endocan (also called ESM-1) is proposed as an endothelial dysfunction indicator. We aimed to investigate endothelial activation in attack-free periods in HAE patients by measuring their levels of endocan and VCAM-1. METHODS Twenty-six HAE patients (22 female, mean age 40 ± 13 years) and 38 healthy control patients (13 female, mean age 36.9 ± 12 years) were included in the study. Peripheral blood samples were collected from HAE patients during symptom-free periods and control subjects. Endocan and VCAM-1 levels were measured using the enzyme-linked immunosorbent assay method. RESULTS The median serum levels of endocan (647 ± 101 ng/mL) and VCAM-1 (500 ± 79 ng/mL) in the HAE patients were significantly higher than in the control patients (391 ± 41 and 325 ± 4; p < 0.001 for both). CONCLUSION The increased endocan and VCAM-1 levels may reflect an endothelial activation even in attack-free periods in HAE patients.
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Affiliation(s)
- Mustafa Demirturk
- Immunology and Allergy Unit, Yedikule Education and Training Hospital, Istanbul University, Istanbul, Turkey
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Grumach AS, Ferraroni N, Olivares MM, López-Serrano MC, Bygum A. An ABC of the Warning Signs of Hereditary Angioedema. Int Arch Allergy Immunol 2017; 174:1-6. [PMID: 28950264 DOI: 10.1159/000479839] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Hereditary angioedema (HAE) with C1 inhibitor deficiency is a genetic disorder that clinically manifests with attacks of angioedema in the subcutaneous and submucosal tissues, mainly in the extremities, abdomen, and upper airway. During attacks, vascular permeability is increased due to increased bradykinin (BK). This means that special therapies are needed for attacks that do not respond to traditional antiallergic therapies involving antihistamines, corticosteroids, and epinephrine. The recurring attacks may disable patients and lead to frequent visits to emergency rooms where misdiagnoses are common. HAE attacks may be fatal when upper-airway edema occurs, if proper treatment with a C1 inhibitor concentrate or BK receptor antagonist is not administered or an emergency tracheostomy is not performed. We propose a mnemonic method for the warning signs of HAE for the use as a diagnostic tool, i.e., the so-called "ABC" of the warning signs of HAE. The letters represent the following: A = Angioedema, B = Bradykinin, C = C1 inhibitor, D = Distress factors, E = Epinephrine nonresponsive, F = Family history, and G = Glottis/Gastrointestinal edema. To avoid fatalities, medical staff and patients, including family members, must be aware of HAE. An alphabetical mnemonic method has been developed and we hope it may benefit patients.
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Abstract
Remarkable progress in understanding the pathophysiology and underlying mechanisms of hereditary angioedema has led to the development of effective treatment for this disorder. Progress in three separate areas has catalyzed our understanding of hereditary angioedema. The first is the recognition that HAE type I and type II result from a deficiency in the plasma level of functional C1 inhibitor. This observation has led to a detailed understanding of the SERPING1 mutations responsible for this deficiency as well as the molecular regulation of C1 inhibitor expression and function. The second is that the fundamental cause of swelling is enhanced contact system activation leading to increased generation of bradykinin. Substantial progress has been made in defining the parameters regulating bradykinin generation and catabolism as well as the receptors that transduce the biologic effects of kinins. The third is the understanding that tissue swelling in hereditary angioedema primarily involves the function of endothelial cell adherens junctions. This knowledge is driving increased attention to the role of endothelial biology in determining disease activity in hereditary angioedema. While there has been considerable progress made, large gaps still remain in our knowledge. Important areas that remain poorly understood include the factors that lead to very low plasma functional C1 inhibitor levels, the triggers of contact system activation in hereditary angioedema, and the role of the bradykinin B1 receptor. The phenotypic variability of hereditary angioedema has been extensively documented but never understood. The mechanisms discussed in this chapter likely contribute to this variability. Future progress in understanding these mechanisms should provide new means to improve the diagnosis and treatment of hereditary angioedema.
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Abstract
Hereditary angioedema (HAE) patients experience recurrent local swelling in various parts of the body including painful swelling of the intestine and life-threatening laryngeal oedema. Most HAE literature is about attacks located in one anatomical site, though it is mentioned that HAE attacks may also involve multiple anatomical sites simultaneously. A detailed description of such multi-location attacks is currently lacking. This study investigated the occurrence, severity and clinical course of HAE attacks with multiple anatomical locations. HAE patients included in a clinical database of recombinant human C1-inhibitor (rhC1INH) studies were evaluated. Visual analog scale scores filled out by the patients for various symptoms at various locations and investigator symptoms scores during the attack were analysed. Data of 219 eligible attacks in 119 patients was analysed. Thirty-three patients (28%) had symptoms at multiple locations in anatomically unrelated regions at the same time during their first attack. Up to five simultaneously affected locations were reported. The observation that severe HAE attacks often affect multiple sites in the body suggests that HAE symptoms result from a systemic rather than from a local process as is currently believed.
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Hofman ZL, Relan A, Zeerleder S, Drouet C, Zuraw B, Hack CE. Angioedema attacks in patients with hereditary angioedema: Local manifestations of a systemic activation process. J Allergy Clin Immunol 2016; 138:359-66. [DOI: 10.1016/j.jaci.2016.02.041] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 01/31/2016] [Accepted: 02/18/2016] [Indexed: 11/17/2022]
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Novel Vasoregulatory Aspects of Hereditary Angioedema: the Role of Arginine Vasopressin, Adrenomedullin and Endothelin-1. J Clin Immunol 2016; 36:160-70. [DOI: 10.1007/s10875-016-0239-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 01/28/2016] [Indexed: 01/14/2023]
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Zeerleder S, Levi M. Hereditary and acquired C1-inhibitor-dependent angioedema: from pathophysiology to treatment. Ann Med 2016; 48:256-67. [PMID: 27018196 DOI: 10.3109/07853890.2016.1162909] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Uncontrolled generation of bradykinin (BK) due to insufficient levels of protease inhibitors controlling contact phase (CP) activation, increased activity of CP proteins, and/or inadequate degradation of BK into inactive peptides increases vascular permeability via BK-receptor 2 (BKR2) and results in subcutaneous and submucosal edema formation. Hereditary and acquired angioedema due to C1-inhibitor deficiency (C1-INH-HAE and -AAE) are diseases characterized by serious and potentially fatal attacks of subcutaneous and submucosal edemas of upper airways, facial structures, abdomen, and extremities, due to inadequate control of BK generation. A decreased activity of C1-inhibitor is the hallmark of C1-INH-HAE (types 1 and 2) due to a mutation in the C1-inhibitor gene, whereas the deficiency in C1-inhibitor in C1-INH-AAE is the result of autoimmune phenomena. In HAE with normal C1-inhibitor, a significant percentage of patients have an increased activity of factor XIIa due to a FXII mutation (FXII-HAE). Treatment of C1-inhibitor-dependent angioedema focuses on restoring control of BK generation by inhibition of CP proteases by correcting the balance between CP inhibitors and BK breakdown or by inhibition of BK-mediated effects at the BKR2 on endothelial cells. This review will address the pathophysiology, clinical picture, diagnosis and available treatment in C1-inhibitor-dependent angioedema focusing on BK-release and its regulation. Key Messages Inadequate control of bradykinin formation results in the formation of characteristic subcutaneous and submucosal edemas of the skin, upper airways, facial structures, abdomen and extremities as seen in hereditary and acquired C1-inhibitor-dependent angioedema. Diagnosis of hereditary and acquired C1-inhibitor-dependent angioedema may be troublesome as illustrated by the fact that there is a significant delay in diagnosis; a certain grade of suspicion is therefore crucial for quick diagnosis. Submucosal edema formation in hereditary and acquired C1-inhibitor-dependent angioedema is potentially life threatening and can occur at any age. To date effective therapies for acute and prophylactic treatment are available.
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Affiliation(s)
- Sacha Zeerleder
- a Department of Immunopathology, Sanquin Research and Landsteiner Laboratory of the AMC , Amsterdam , The Netherlands ;,b Department of Hematology , Academic Medical Center, University of Amsterdam , The Netherlands
| | - Marcel Levi
- c Department of Internal Medicine , Academic Medical Center, University of Amsterdam , The Netherlands
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Wu MA, Zanichelli A, Mansi M, Cicardi M. Current treatment options for hereditary angioedema due to C1 inhibitor deficiency. Expert Opin Pharmacother 2015; 17:27-40. [DOI: 10.1517/14656566.2016.1104300] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Csuka D, Veszeli N, Imreh É, Zotter Z, Skopál J, Prohászka Z, Varga L, Farkas H. Comprehensive study into the activation of the plasma enzyme systems during attacks of hereditary angioedema due to C1-inhibitor deficiency. Orphanet J Rare Dis 2015; 10:132. [PMID: 26452350 PMCID: PMC4600308 DOI: 10.1186/s13023-015-0351-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 10/01/2015] [Indexed: 11/20/2022] Open
Abstract
Background The activation of plasma enzyme systems contributes to hereditary angioedema attacks. We aimed to study the activation markers of the fibrinolytic, coagulation, and contact systems in a larger number of paired samples obtained from the same C1-INH-HAE patients in symptom-free periods and during attacks. Methods Eleven parameters (Factors XI, XII, and C1-inhibitor activity; the concentrations of the D-dimer, prothrombin fragments 1 + 2, plasminogen, plasminogen activator inhibitor-1 [PAI-1], thrombin-anti-thrombin III [TAT] complex, fibrinogen) were measured along with prothrombin time and activated partial thromboplastin time (aPTT), using commercial kits. We compared these markers in samples obtained from the same 39 patients during attack-free periods and during 62 edematous episodes. Forty healthy subjects of matching sex and age served as controls. Results Compared with the healthy controls, significantly higher FXI and FXII activity (p = 0.0007, p = 0.005), as well as D-dimer (p < 0.0001), prothrombin fragments 1 + 2 (p < 0.0001), and TAT (p = 0.0303) levels were ascertained in the patients during symptom-free periods. The evaluation of samples from symptom-free periods or obtained during attacks revealed the increase of FXII activity, as well as of the concentration of D-dimer, prothrombin fragments 1 + 2, and TAT during edematous episodes. PAI-1 level, prothrombin time, and aPTT decreased significantly during attacks, compared with symptom-free periods. D-dimer level was significantly higher during multiple- vs. single-site attacks. Conclusions Comparing a large number of paired samples from symptom-free periods or from edematous episodes allowed accurate appraisal of the changes occurring during attacks. Moreover, our study pointed out that individual episodes may be characterized by different marker patterns.
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Affiliation(s)
- Dorottya Csuka
- 3rd Department of Internal Medicine, Semmelweis University, Faculty of Medicine, Kútvölgyi út 4, H-1125, Budapest, Hungary.
| | - Nóra Veszeli
- 3rd Department of Internal Medicine, Semmelweis University, Faculty of Medicine, Kútvölgyi út 4, H-1125, Budapest, Hungary.
| | - Éva Imreh
- 3rd Department of Internal Medicine, Semmelweis University, Faculty of Medicine, Kútvölgyi út 4, H-1125, Budapest, Hungary.
| | - Zsuzsanna Zotter
- 3rd Department of Internal Medicine, Semmelweis University, Faculty of Medicine, Kútvölgyi út 4, H-1125, Budapest, Hungary.
| | - Judit Skopál
- Department of Cardiology, Heart & Vascular Center, Semmelweis University, Budapest, Hungary.
| | - Zoltán Prohászka
- 3rd Department of Internal Medicine, Semmelweis University, Faculty of Medicine, Kútvölgyi út 4, H-1125, Budapest, Hungary.
| | - Lilian Varga
- 3rd Department of Internal Medicine, Semmelweis University, Faculty of Medicine, Kútvölgyi út 4, H-1125, Budapest, Hungary.
| | - Henriette Farkas
- 3rd Department of Internal Medicine, Semmelweis University, Faculty of Medicine, Kútvölgyi út 4, H-1125, Budapest, Hungary.
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Caccia S, Suffritti C, Cicardi M. Pathophysiology of Hereditary Angioedema. PEDIATRIC ALLERGY, IMMUNOLOGY, AND PULMONOLOGY 2014; 27:159-163. [PMID: 25538858 PMCID: PMC4268578 DOI: 10.1089/ped.2014.0425] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Accepted: 10/10/2014] [Indexed: 02/05/2023]
Abstract
The genetic deficiency of the C1 inhibitor is responsible for hereditary angioedema (HAE), which is a disease transmitted as an autosomal dominant trait. More than 200 point mutations in the C1 inhibitor gene have been found to be associated with HAE. Patients with this disease suffer from recurrent angioedema, which is mediated by bradykinin derived from activation of the contact system. This system is physiologically controlled at several steps by the C1 inhibitor. In this review, we describe known mechanisms for the development of angioedema in patients with C1 inhibitor deficiency.
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Affiliation(s)
- Sonia Caccia
- Department of Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Chiara Suffritti
- Department of Biomedical and Clinical Sciences L.Sacco, University of Milan, Milan, Italy
| | - Marco Cicardi
- Department of Biomedical and Clinical Sciences L.Sacco, University of Milan, Milan, Italy
- Department of Medicine, Luigi Sacco Hospital, Milan, Italy
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Madsen DE, Hansen S, Gram J, Bygum A, Drouet C, Sidelmann JJ. Presence of C1-inhibitor polymers in a subset of patients suffering from hereditary angioedema. PLoS One 2014; 9:e112051. [PMID: 25369003 PMCID: PMC4219832 DOI: 10.1371/journal.pone.0112051] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 10/11/2014] [Indexed: 11/19/2022] Open
Abstract
Hereditary angioedema (HAE) is a potentially life-threatening disease caused by mutations in the gene encoding the serine protease inhibitor (serpin) C1 inhibitor (C1-inh). The mutations cause decreased functional plasma levels of C1-inh, which triggers unpredictable recurrent edema attacks. Subjects suffering from HAE have been classified in type I patients with decreased functional and antigenic levels of C1-inh, and type II patients with decreased functional but normal antigenic C1-inh levels. However, a few reports have demonstrated that some mutations cause C1-inh polymerization in vitro, and it is speculated that C1-inh polymers may exist in patient plasma, challenging the current classification of HAE patients. To investigate the presence of C1-inh polymers in patient plasma samples, we developed an immunological method, where monoclonal antibodies produced against polymerized C1-inh were applied in native PAGE western blotting. Using this approach we analyzed genuine plasma samples from 31 Danish HAE families, and found that plasma samples from three genotypically distinct HAE type I families (classified upon C1-inh plasma concentrations) contained C1-inh polymers. Identical C1-inh polymerization phenotypes were observed in four affected family members from one of these families. Genotyping of the families revealed that the polymerogenic mutations of two families were located in proximity to the reactive center loop insertion site in C1-inh (p.Ile271Thr and p.Ser258_Pro260del),and one mutation affected helix C (p.Thr167Asn). In conclusion, we demonstrate that C1-inh polymers are present in the plasma of a subgroup of HAE type I patients.
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Affiliation(s)
- Daniel Elenius Madsen
- University of Southern Denmark, Institute of Public Health, Unit for Thrombosis Research, Esbjerg, Denmark
| | - Søren Hansen
- University of Southern Denmark, Institute of Molecular Medicine, Cancer and Inflammation Research, Odense C, Denmark
| | - Jørgen Gram
- University of Southern Denmark, Institute of Public Health, Unit for Thrombosis Research, Esbjerg, Denmark
| | - Anette Bygum
- Hereditary Angioedema Centre Denmark, Department of Dermatology and Allergy Centre, Odense University Hospital, Odense C, Denmark
| | - Christian Drouet
- University Joseph Fourier Grenoble, National Reference Centre for Angioedema, Grenoble, France
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Hofman ZLM, Relan A, Hack CE. C-reactive protein levels in hereditary angioedema. Clin Exp Immunol 2014; 177:280-6. [PMID: 24588117 DOI: 10.1111/cei.12314] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2014] [Indexed: 01/10/2023] Open
Abstract
Hereditary angioedema (HAE) patients experience recurrent episodes of angioedema attacks that can be painful, disfiguring and even life-threatening. The disorder results from a mutation in the gene that controls the synthesis of C1-inhibitor (C1INH). C1INH is a major regulator of activation of the contact system. It is often assumed that attacks results from uncontrolled local activation of the contact system with subsequent formation of bradykinin. To evaluate the involvement of inflammatory reactions in HAE, we analysed C-reactive protein (CRP) levels. HAE patients included in a clinical database of recombinant human C1-inhibitor (rhC1INH) studies were evaluated. For the current study we analysed CRP levels when patients were asymptomatic, during a clinical attack and in a follow-up period, and correlated these with the clinical manifestations of the attack. Data from 68 HAE patients were analysed and included CRP levels on 273 occasions. While asymptomatic, 20% of the patients analysed had increased CRP. At the onset of the attack (P = 0·049) and during the next 24 h CRP rose significantly (P = 0·002) in patients with an abdominal location, and post-attack levels were significantly higher in these patients than in patients with attacks at other locations (P = 0·034). In conclusion, CRP levels are elevated in a substantial proportion of asymptomatic HAE patients. Levels of CRP increase significantly during an abdominal attack. These data suggest low-grade systemic inflammatory reactions in HAE patients as well as a triggering event for attacks that starts prior to symptom onset.
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Affiliation(s)
- Z L M Hofman
- Laboratory for Translational Immunology, University Medical Centre Utrecht, Utrecht, The Netherlands
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Kalra N, Craig T. Icatibant for the treatment of hereditary angioedema. Expert Opin Orphan Drugs 2014. [DOI: 10.1517/21678707.2014.924852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Endothelial cell activation during edematous attacks of hereditary angioedema types I and II. J Allergy Clin Immunol 2014; 133:1686-91. [DOI: 10.1016/j.jaci.2013.12.1072] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 12/20/2013] [Accepted: 12/24/2013] [Indexed: 12/29/2022]
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Abstract
BACKGROUND Angioedema is a serious medical condition characterized by recurrent non-pitting tissue edema. Hereditary (HAE) forms of this disorder are potentially fatal. METHODS PubMED, Up to Date and Cochrane Library databases were used to identify scholarly peer reviewed original research or review articles on angioedema. Search terms used were: angioedema, HAE, ACE inhibitor induced angioedema, acquired angioedema, type III HAE (now termed HAE with normal C1-INH), diagnosis of HAE, and treatment of HAE. Inclusive dates of the search were 1946 through 2013. Articles on urticaria were excluded. RESULTS The pathophysiology, clinical manifestations, differential diagnosis and treatments of angioedema are presented. Three variants of HAE are discussed and differentiated from acquired, ACE induced and allergic types of angioedema. Emphasis is placed on understanding that HAE is mediated by bradykinin, not histamine, and is therefore unresponsive to antihistamines, corticosteroids and epinephrine. In contrast, newer therapies that replace C1-INH or block bradykinin production or action are the appropriate treatments for prophylaxis and acute treatment of HAE. CONCLUSION Recognition of HAE by primary care providers and distinguishing it from allergic histamine mediated angioedema is essential in preventing recurrent attacks and avoiding inappropriate therapy, and may be life-saving.
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C1-esterase inhibitor deficiency in pediatric heart transplant recipients: incidence and findings on ultrasound. Pediatr Radiol 2014; 44:258-64. [PMID: 24362722 DOI: 10.1007/s00247-013-2816-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 07/26/2013] [Accepted: 10/03/2013] [Indexed: 10/25/2022]
Abstract
BACKGROUND Acquired angioedema of the bowel caused by a deficiency of C1-esterase inhibitor can lead to severe abdominal pain with sudden onset, mimicking an acute surgical abdomen. In contrast to hereditary angioedema, which usually manifests in childhood, acquired angioedema is broadly recognized to affect people older than 40 years. OBJECTIVE To determine the incidence of acquired angioedema in a cohort of pediatric heart transplant recipients and assess imaging findings on ultrasonography. MATERIALS AND METHODS A cohort of 207 children and adolescents who had undergone heart transplantation were assessed at regular follow-up examinations for incidence of acquired angioedema. All patients received ACE inhibitors and immune inhibitors. Control examinations carried out in 3-month intervals included history, assessment of clinical symptoms, physical examination, US of the abdomen and laboratory blood analysis. In addition, if clinical symptoms were newly encountered, children were admitted between regularly scheduled intervals. We analyzed results of abdominal US for pathological findings of the bowel, and we assessed imaging findings in children diagnosed with acquired angioedema. RESULTS Acquired angioedema was diagnosed in 3/207 patients (2 girls ages 16 and 17 years and 1 boy age 9 months). These children presented with sudden onset of severe abdominal pain. The bowel wall was thickened in the presence of ascites. After a mean of 72 h, abdominal pains resolved. Thickening of bowel loops dissolved and ascites disappeared. CONCLUSION Single episodes of acquired angioedema were encountered in 1.4% of our series of pediatric heart transplant recipients. Radiologists should be familiar with this disease so they can diagnose it on US imaging.
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Jolles S, Williams P, Carne E, Mian H, Huissoon A, Wong G, Hackett S, Lortan J, Platts V, Longhurst H, Grigoriadou S, Dempster J, Deacock S, Khan S, Darroch J, Simon C, Thomas M, Pavaladurai V, Alachkar H, Herwadkar A, Abinun M, Arkwright P, Tarzi M, Helbert M, Bangs C, Pastacaldi C, Phillips C, Bennett H, El-Shanawany T. A UK national audit of hereditary and acquired angioedema. Clin Exp Immunol 2014; 175:59-67. [PMID: 23786259 DOI: 10.1111/cei.12159] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2013] [Indexed: 11/28/2022] Open
Abstract
Hereditary angioedema (HAE) and acquired angioedema (AAE) are rare life-threatening conditions caused by deficiency of C1 inhibitor (C1INH). Both are characterized by recurrent unpredictable episodes of mucosal swelling involving three main areas: the skin, gastrointestinal tract and larynx. Swelling in the gastrointestinal tract results in abdominal pain and vomiting, while swelling in the larynx may be fatal. There are limited UK data on these patients to help improve practice and understand more clearly the burden of disease. An audit tool was designed, informed by the published UK consensus document and clinical practice, and sent to clinicians involved in the care of HAE patients through a number of national organizations. Data sets on 376 patients were received from 14 centres in England, Scotland and Wales. There were 55 deaths from HAE in 33 families, emphasizing the potentially lethal nature of this disease. These data also show that there is a significant diagnostic delay of on average 10 years for type I HAE, 18 years for type II HAE and 5 years for AAE. For HAE the average annual frequency of swellings per patient affecting the periphery was eight, abdomen 5 and airway 0·5, with wide individual variation. The impact on quality of life was rated as moderate or severe by 37% of adult patients. The audit has helped to define the burden of disease in the UK and has aided planning new treatments for UK patients.
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Affiliation(s)
- S Jolles
- Department of Immunology, University Hospital of Wales, Cardiff, UK
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Walford HH, Zuraw BL. Current update on cellular and molecular mechanisms of hereditary angioedema. Ann Allergy Asthma Immunol 2014; 112:413-8. [PMID: 24484972 DOI: 10.1016/j.anai.2013.12.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 12/11/2013] [Accepted: 12/22/2013] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To provide an update on the molecular mechanisms of hereditary angioedema (HAE). DATA SOURCES MEDLINE and PubMed databases were searched to identify pertinent articles using the following key terms: hereditary angioedema, angioedema, C1 inhibitor, bradykinin, contact system, factor XII, mechanism, pathophysiology, severity, permeability, and estrogen. STUDY SELECTIONS Articles were selected based on their relevance to the subject matter. RESULTS Although the biochemical basis of "classic" HAE is known to result from C1 esterase inhibitor (C1INH) deficiency, a new form, HAE with normal C1INH, has been identified. HAE types I and II are caused by mutations in the SERPING1 gene that result in decreased plasma levels of functional C1INH. In HAE with normal C1INH, mutations in the F12 gene have been identified in a subset of individuals, but the genetic defect remains unknown in most patients. The primary mediator of swelling in HAE is bradykinin, a product of the plasma contact system that increases vascular permeability. HAE disease severity is highly variable and may be influenced by polymorphisms in other genes and other factors, such as hormones, trauma, stress, and infection. CONCLUSION Hereditary angioedema is a heterogeneous disorder with a complex pathophysiology. Implicated genes include SERPING1 and FXII in patients with HAE from C1INH deficiency and HAE with normal C1INH levels, respectively. Disease severity is highly variable.
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Affiliation(s)
- Hannah H Walford
- Department of Medicine, University of California-San Diego, La Jolla, California
| | - Bruce L Zuraw
- Department of Medicine, University of California-San Diego, La Jolla, California; San Diego Veteran's Administration Healthcare, San Diego, California.
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Abstract
Patients affected by angioedema (AE) are subject to asymmetric, nonerythematous, nonpruritic, localized, transient, episodic swelling of deeper layers or submucosal tissues of the skin, oropharyngolaryngeal tissue, and/or gastrointestinal wall. The nonapeptide bradykinin (BK) may be largely responsible for the vascular permeability seen in most AE. During AE attacks, activation of the serine proteases leads to the release of BK. Enzymes expressed on the endothelial cell membrane can metabolize BK, producing the agonist of the B1R, which can then be upregulated by proinflammatory stimuli, suggesting that the blockade of B1R and B2R, or gC1q/p33, may provide novel therapeutic targets.
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