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Napodano C, Pocino K, Gulli F, Rossi E, Rapaccini GL, Marino M, Basile U. Mono/polyclonal free light chains as challenging biomarkers for immunological abnormalities. Adv Clin Chem 2022; 108:155-209. [PMID: 35659060 DOI: 10.1016/bs.acc.2021.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Free light chain (FLC) kappa (k) and lambda (λ) consist of low molecular weight proteins produced in excess during immunoglobulin synthesis and secreted into the circulation. In patients with normal renal function, over 99% of FLCs are filtered and reabsorbed. Thus, the presence of FLCs in the serum is directly related to plasma cell activity and the balance between production and renal clearance. FLCs are bioactive molecules that may exist as monoclonal (m) and polyclonal (p) FLCs. These have been detected in several body fluids and may be key indicators of ongoing damage and/or illness. International guidelines now recommend mFLC for screening, diagnosis and monitoring multiple myeloma and other plasma cell dyscrasias. In current clinical practice, FLCs in urine indicate cast nephropathy and other renal injury, whereas their presence in cerebrospinal fluid is important for identifying central nervous system inflammatory diseases such as multiple sclerosis. Increased pFLCs have also been detected in various conditions characterized by B cell activation, i.e., chronic inflammation, autoimmune disease and HCV infection. Monitoring the coronavirus (COVID-19) pandemic by analysis of salivary FLCs presents a significant opportunity in clinical immunology worthy of scientific pursuit.
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Affiliation(s)
- Cecilia Napodano
- Dipartimento di Scienze Mediche e Chirurgiche, UOC Gastroenterologia Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Krizia Pocino
- Dipartimento di Scienze Mediche e Chirurgiche, UOC Gastroenterologia Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesca Gulli
- Laboratorio di Patologia Clinica, Ospedale Madre Giuseppina Vannini, Rome, Italy
| | - Elena Rossi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Gian Ludovico Rapaccini
- Dipartimento di Scienze Mediche e Chirurgiche, UOC Gastroenterologia Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Mariapaola Marino
- Dipartimento di Medicina e Chirurgia Traslazionale, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Umberto Basile
- Dipartimento di Scienze di laboratorio e Infettivologiche, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy.
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Delgadillo DM, Céspedes-Cruz AI, Ríos-Castro E, Rodríguez Maldonado MG, López-Nogueda M, Márquez-Gutiérrez M, Villalobos-Manzo R, Ramírez-Reyes L, Domínguez-Fuentes M, Tapia-Ramírez J. Differential Expression of Proteins in an Atypical Presentation of Autoimmune Lymphoproliferative Syndrome. Int J Mol Sci 2022; 23:5366. [PMID: 35628184 PMCID: PMC9140392 DOI: 10.3390/ijms23105366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/02/2022] [Accepted: 05/03/2022] [Indexed: 02/04/2023] Open
Abstract
Autoimmune lymphoproliferative syndrome (ALPS) is a rare disease defined as a defect in the lymphocyte apoptotic pathway. Currently, the diagnosis of ALPS is based on clinical aspects, defective lymphocyte apoptosis and mutations in Fas, FasL and Casp 10 genes. Despite this, ALPS has been misdiagnosed. The aim of this work was to go one step further in the knowledge of the disease, through a molecular and proteomic analysis of peripheral blood mononuclear cells (PBMCs) from two children, a 13-year-old girl and a 6-year-old boy, called patient 1 and patient 2, respectively, with clinical data supporting the diagnosis of ALPS. Fas, FasL and Casp10 genes from both patients were sequenced, and a sample of the total proteins from patient 1 was analyzed by label-free proteomics. Pathway analysis of deregulated proteins from PBMCs was performed on the STRING and PANTHER bioinformatics databases. A mutation resulting in an in-frame premature stop codon and protein truncation was detected in the Fas gene from patient 2. From patient 1, the proteomic analysis showed differences in the level of expression of proteins involved in, among other processes, cell cycle, regulation of cell cycle arrest and immune response. Noticeably, the most down-regulated protein is an important regulator of the cell cycle process. This could be an explanation of the disease in patient 1.
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Affiliation(s)
- Dulce María Delgadillo
- Unidad de Genómica, Proteómica y Metabolómica, Laboratorio Nacional de Servicios Experimentales (LaNSE), Centro de Investigación y de Estudios Avanzados, Mexico City 07360, CP, Mexico
| | - Adriana Ivonne Céspedes-Cruz
- Unidad Médica de Alta Especialidad (UMAE), Centro Médico Nacional La Raza Hospital General, Mexico City 02990, CP, Mexico
| | - Emmanuel Ríos-Castro
- Unidad de Genómica, Proteómica y Metabolómica, Laboratorio Nacional de Servicios Experimentales (LaNSE), Centro de Investigación y de Estudios Avanzados, Mexico City 07360, CP, Mexico
| | | | - Mariel López-Nogueda
- Unidad Médica de Alta Especialidad (UMAE), Centro Médico Nacional La Raza Hospital General, Mexico City 02990, CP, Mexico
| | - Miguel Márquez-Gutiérrez
- Unidad Médica de Alta Especialidad (UMAE), Centro Médico Nacional La Raza Hospital General, Mexico City 02990, CP, Mexico
| | - Rocío Villalobos-Manzo
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados, Mexico City 07360, CP, Mexico
| | - Lorena Ramírez-Reyes
- Unidad de Genómica, Proteómica y Metabolómica, Laboratorio Nacional de Servicios Experimentales (LaNSE), Centro de Investigación y de Estudios Avanzados, Mexico City 07360, CP, Mexico
| | - Misael Domínguez-Fuentes
- Unidad de Genómica, Proteómica y Metabolómica, Laboratorio Nacional de Servicios Experimentales (LaNSE), Centro de Investigación y de Estudios Avanzados, Mexico City 07360, CP, Mexico
| | - José Tapia-Ramírez
- Unidad de Genómica, Proteómica y Metabolómica, Laboratorio Nacional de Servicios Experimentales (LaNSE), Centro de Investigación y de Estudios Avanzados, Mexico City 07360, CP, Mexico
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados, Mexico City 07360, CP, Mexico
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Napodano C, Gulli F, Rapaccini GL, Marino M, Basile U. Cryoglobulins: Identification, classification, and novel biomarkers of mysterious proteins. Adv Clin Chem 2021; 104:299-340. [PMID: 34462057 PMCID: PMC7604189 DOI: 10.1016/bs.acc.2020.09.006] [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] [Indexed: 12/30/2022]
Abstract
Cryoglobulins consist of serum immunoglobulins that precipitate below 37°C and resolubilize upon warming. The clinical triad of cryoglobulinemia usually includes purpura, weakness, and arthralgia. Cryoglobulinemic syndrome, clinically defined as a systemic vasculitis, is associated with chronic infection with hepatitis C virus (HCV) and autoimmune disorders and can evolve into B-cell malignancies. While the current literature about HCV-associated cryoglobulinemia is not very limited, little is known about the immunologic and serologic profiles of affected patients. Therefore, comprehension of the pathogenetic mechanisms underlying cryoprecipitation could be very helpful. Due to the persistence of viral antigenic stimulation, biomarkers to use after the worsening progression of HCV infection to lymphoproliferative and/or autoimmune diseases are widely needed. Laboratory methods used to detect and characterize low concentrations of cryoprecipitates and immunotyping patterns could improve patient management. The most critical factor affecting cryoglobulin testing is that the pre-analytical phase is not fully completed at 37°C.
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Affiliation(s)
- Cecilia Napodano
- Dipartimento di Scienze Mediche e Chirurgiche, UOC Gastroenterologia Fondazione Policlinico Universitario "A. Gemelli" I.R.C.C.S., Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesca Gulli
- Laboratorio di Patologia Clinica, Ospedale Madre Giuseppina Vannini, Rome, Italy
| | - Gian Ludovico Rapaccini
- Dipartimento di Scienze Mediche e Chirurgiche, UOC Gastroenterologia Fondazione Policlinico Universitario "A. Gemelli" I.R.C.C.S., Università Cattolica del Sacro Cuore, Rome, Italy
| | - Mariapaola Marino
- Dipartimento Di Medicina E Chirurgia Traslazionale, Istituto di Patologia Generale, Fondazione Policlinico Universitario "A. Gemelli" I.R.C.C.S., Università Cattolica del Sacro Cuore, Rome, Italy
| | - Umberto Basile
- Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario "A. Gemelli" I.R.C.C.S., Università Cattolica del Sacro Cuore, Rome, Italy.
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Pocino K, Napodano C, Gragnani L, Ciasca G, Colantuono S, Marri S, Vantaggio L, Gulli F, Lorini S, Barini A, Stefanile A, Miele L, Casato M, Zignego AL, Rapaccini GL, Marino M, Visentini M, Basile U. Solving the mystery of HBV-related mixed cryoglobulinemia: potential biomarkers of disease progression. Rheumatology (Oxford) 2021; 60:4418-4427. [PMID: 33590837 PMCID: PMC7928620 DOI: 10.1093/rheumatology/keab157] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 02/04/2021] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVES The biomarkers of an immunological dysregulation due to a chronic HBV infection are indeed understudied. If untreated, this condition may evolve into liver impairment co-occurring with extrahepatic involvements. Here, we aim to identify a new panel of biomarkers [including immunoglobulin G (IgG) subclasses, RF, and Free Light Chains (FLCs)] that may be useful and reliable for clinical evaluation of HBV-related cryoglobulinemia. METHODS We retrospectively analysed clinical data from 44 HBV-positive patients. The patients were stratified (according to the presence/absence of mixed cryoglobulinemia) into two groups: 22 with cryoglobulins (CGs) and 22 without CGs. Samples from 20 healthy blood donors (HDs) were used as negative controls. Serum samples were tested for IgG subclasses, RF (-IgM, -IgG, and -IgA type), and FLCs. RESULTS We detected a strikingly different distribution of serum IgG subclasses between HDs and HBV-positive patients, together with different RF isotypes; in addition, FLCs were significantly increased in HBV-positive patients compared with HDs, while no significant difference was shown between HBV-positive patients with/without mixed cryoglobulinemia. CONCLUSION The immune-inflammatory response triggered by HBV may be monitored by a peculiar profile of biomarkers. Our results open a new perspective in the precision medicine era; in these challenging times, they could also be employed to monitor the clinical course of those COVID-19 patients who are at high risk of HBV reactivation due to liver impairment and/or immunosuppressive therapies.
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Affiliation(s)
- Krizia Pocino
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario ‘A. Gemelli’ I.R.C.C.S, Rome
| | - Cecilia Napodano
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario ‘A. Gemelli’ I.R.C.C.S, Rome
| | - Laura Gragnani
- Department of Experimental and Clinical Medicine, Interdepartmental Center for Systemic Manifestations of Hepatitis Viruses (MaSVE), University of Florence, Florence
| | - Gabriele Ciasca
- Istituto di Fisica, Università Cattolica del Sacro Cuore, Fondazione Policlinico A. Gemelli I.R.C.C.S, Roma
| | - Stefania Colantuono
- Department of Translational and Precision Medicine, Sapienza University of Rome
| | - Silvia Marri
- Department of Experimental and Clinical Medicine, Interdepartmental Center for Systemic Manifestations of Hepatitis Viruses (MaSVE), University of Florence, Florence
| | - Lorenzo Vantaggio
- Department of Translational and Precision Medicine, Sapienza University of Rome
| | - Francesca Gulli
- Dipartimento di Medicina di Laboratorio, Ospedale Madre Giuseppina Vannini
| | - Serena Lorini
- Department of Experimental and Clinical Medicine, Interdepartmental Center for Systemic Manifestations of Hepatitis Viruses (MaSVE), University of Florence, Florence
| | - Antonella Barini
- Area Diagnostica di Laboratorio, Fondazione Policlinico Universitario ‘A. Gemelli’, I.R.C.C.S, Rome, Italy
| | - Annunziata Stefanile
- Area Diagnostica di Laboratorio, Fondazione Policlinico Universitario ‘A. Gemelli’, I.R.C.C.S, Rome, Italy
| | - Luca Miele
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario ‘A. Gemelli’ I.R.C.C.S, Rome
| | - Milvia Casato
- Department of Translational and Precision Medicine, Sapienza University of Rome
| | - Anna Linda Zignego
- Department of Experimental and Clinical Medicine, Interdepartmental Center for Systemic Manifestations of Hepatitis Viruses (MaSVE), University of Florence, Florence
| | - Gian Ludovico Rapaccini
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario ‘A. Gemelli’ I.R.C.C.S, Rome
| | - Mariapaola Marino
- Dipartimento di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario ‘A. Gemelli’ I.R.C.C.S, Rome
| | - Marcella Visentini
- Department of Translational and Precision Medicine, Sapienza University of Rome
| | - Umberto Basile
- Area Diagnostica di Laboratorio, Fondazione Policlinico Universitario ‘A. Gemelli’, I.R.C.C.S, Rome, Italy
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Napodano C, Marino M, Stefanile A, Pocino K, Scatena R, Gulli F, Rapaccini GL, Delli Noci S, Capozio G, Rigante D, Basile U. Immunological Role of IgG Subclasses. Immunol Invest 2020; 50:427-444. [PMID: 32522062 DOI: 10.1080/08820139.2020.1775643] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The loss of tolerance to self-antigens is the unequivocal "red line" of autoimmunity: both development of autoreactive T and B cells and production of polyclonal autoantibodies represent seminal keys to the pathogenesis of protean autoimmune diseases. Most of these autoantibodies are immunoglobulins G (IgG), functionally distinguished in four subclasses named IgG1, IgG2, IgG3, and IgG4, due to structural differences in the hinge and heavy chain constant regions. Different studies analyzed serum levels of IgG subclasses in the course of different disorders, showing that they might have a pathogenic role by regulating interactions among immunoglobulins, Fc-gamma receptors, and complement. To date, the mechanisms promoting different IgG subclasses distribution during the natural history of most autoimmune diseases remain somewhat unclear. Evidence from the medical literature shows that the serum IgG profile is peculiar for many autoimmune diseases, suggesting that different subclasses could be specific for the underlying driving autoantigens. A better knowledge of IgG subsets may probably help to elucidate their pathological task, but also to define their relevance for diagnostic purposes, patients' personalized management, and prognosis assessment.
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Affiliation(s)
- Cecilia Napodano
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
| | - MariaPaola Marino
- Institute of General Pathology, Dipartimento Di Medicina E Chirurgia Traslazionale, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
| | - Annunziata Stefanile
- Area Diagnostica di Laboratorio, Fondazione Policlinico Universitario "A. Gemelli", Rome, Italy
| | - Krizia Pocino
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
| | - Roberto Scatena
- Dipartimento Di Medicina Di Laboratorio, Ospedale Madre Giuseppina Vannini, Rome, Italy
| | - Francesca Gulli
- Dipartimento Di Medicina Di Laboratorio, Ospedale Madre Giuseppina Vannini, Rome, Italy
| | - Gian Lodovico Rapaccini
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy.,Università Cattolica del Sacro Cuore, Rome, Italy
| | - Stefano Delli Noci
- Department of Life Sciences and Public Health, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
| | - Giovanna Capozio
- Department of Life Sciences and Public Health, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
| | - Donato Rigante
- Università Cattolica del Sacro Cuore, Rome, Italy.,Department of Life Sciences and Public Health, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
| | - Umberto Basile
- Area Diagnostica di Laboratorio, Fondazione Policlinico Universitario "A. Gemelli", Rome, Italy.,Università Cattolica del Sacro Cuore, Rome, Italy
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Flaviviridae Viruses and Oxidative Stress: Implications for Viral Pathogenesis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1409582. [PMID: 31531178 PMCID: PMC6720866 DOI: 10.1155/2019/1409582] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 07/09/2019] [Accepted: 07/25/2019] [Indexed: 02/07/2023]
Abstract
Oxidative stress is induced once the balance of generation and neutralization of reactive oxygen species (ROS) is broken in the cell, and it plays crucial roles in a variety of natural and diseased processes. Infections of Flaviviridae viruses trigger oxidative stress, which affects both the cellular metabolism and the life cycle of the viruses. Oxidative stress associated with specific viral proteins, experimental culture systems, and patient infections, as well as its correlations with the viral pathogenesis attracts much research attention. In this review, we primarily focus on hepatitis C virus (HCV), dengue virus (DENV), Zika virus (ZIKV), Japanese encephalitis virus (JEV), West Nile virus (WNV), and tick-borne encephalitis virus (TBEV) as representatives of Flaviviridae viruses and we summarize the mechanisms involved in the relevance of oxidative stress for virus-associated pathogenesis. We discuss the current understanding of the pathogenic mechanisms of oxidative stress induced by Flaviviridae viruses and highlight the relevance of autophagy and DNA damage in the life cycle of viruses. Understanding the crosstalk between viral infection and oxidative stress-induced molecular events may offer new avenues for antiviral therapeutics.
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Basile U, Napodano C, Pocino K, Gulli F, Santini SA, Todi L, Marino M, Rapaccini GL. Serological profile of asymptomatic HCV positive patients with low level of cryoglobulins. Biofactors 2019; 45:318-325. [PMID: 30561820 DOI: 10.1002/biof.1485] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/09/2018] [Accepted: 11/26/2018] [Indexed: 12/22/2022]
Abstract
Clinical spectrum of hepatitis C virus (HCV)-related cryoglobulinemia varies from an asymptomatic presentation to severe vasculitis and lymphoma. A recent study in HCV-negative patients suggests that low cryoglobulins (CGs) levels are responsible for severe renal and neurological complications. The aim of this study was to identify a panel of serological biomarkers associated with low levels of CGs in HCV-positive patients. We studied a population of 79 untreated patients with chronic HCV infection: 13 naïve patients without CGs; 28 patients with asymptomatic mixed cryoglobulinemia (MC) and low levels of CGs (16/28 with polyclonal type III and 12/28 with microheterogeneous type III CGs); 38 patients with symptomatic MC and high levels of type II CGs. Serum samples were collected and examined for rheumatoid factor (RF) IgG and IgM, free light chains (FLCs) and C3 and C4 complement components. We found that RF-IgG and IgM, free k chains and k+λ were increased while C4 component was reduced, both in symptomatic and asymptomatic patients. Our results suggest that, even in absence of MC symptoms, the low levels of CGs may represent a trigger of activation for immune system in course of HCV infection. The identification of a correlated biomarkers panel could improve the clinical management of these patients and pave the way for target treatment strategies. © 2018 BioFactors, 45(3):318-325, 2019.
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Affiliation(s)
- Umberto Basile
- Dipartimento di Diagnostica per Immagini e Medicina di laboratorio, Fondazione Policlinico Universitario Agostino Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Cecilia Napodano
- Dipartimento di Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Krizia Pocino
- Dipartimento di Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesca Gulli
- Dipartimento di Medicina di Laboratorio, Ospedale generale di zona Madre Giuseppina Vannini, Rome, Italy
| | - Stefano Angelo Santini
- Dipartimento di Diagnostica per Immagini e Medicina di laboratorio, Fondazione Policlinico Universitario Agostino Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Laura Todi
- Istituto di Patologia generale, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli, Rome, Italy
| | - Mariapaola Marino
- Istituto di Patologia generale, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli, Rome, Italy
| | - Gian Ludovico Rapaccini
- Dipartimento di Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy
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8
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Basile U, Gulli F, Gragnani L, Pocino K, Napodano C, Miele L, Santini SA, Marino M, Zignego AL, Rapaccini GL. Different biochemical patterns in type II and type III mixed cryoglobulinemia in HCV positive patients. Dig Liver Dis 2018; 50:938-943. [PMID: 29709461 DOI: 10.1016/j.dld.2018.03.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 03/16/2018] [Accepted: 03/19/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Reversible cryoprecipitability of proteins is observed as a concomitant feature of immune complex formation. Mixed cryoglobulinemia (MC) is systemic vasculitis, associated with mixed IgM and IgG cryoglobulins (CGs) showing rheumatoid factor (RF) activity. It is frequently associated with hepatitis C virus (HCV). This study investigates the presence of IgG RF and anti-nuclear antibodies (ANA) in cryoprecipitates of patients with type III and type II MC, to understand the biochemical patterns associated with different types of MC to a greater degree. METHODS Sera from 70 HCV untreated patients with type III or type II MC were tested by immunofixation for IgG3 and through ELISA for IgG RF. Cryoprecipitates were analysed for ANA by indirect immunofluorescence to identify specific patterns. RESULTS After stratification according to MC type, the ANA patterns between type II and type III MC were statistically different. IgG3 levels and IgG-RF positivity were significantly higher in type III cryoprecipitate. We observed a higher positivity of IgG3 and a significant difference between the liver fibrosis stage, ANA and IgG-RF in the cryoprecipitate. CONCLUSION Results show a combination of biochemical markers and autoantibodies associated to mixed cryoglobulinemia; these findings could be further investigated in order to ascertain their usefulness in assessing the risk for the development of mixed cryoglobulinemia.
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Affiliation(s)
- Umberto Basile
- Department of Diagnostic Imaging and Laboratory Medicine, Fondazione Policlinico Universitario Agostino Gemelli - Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesca Gulli
- Department of Laboratory Medicine - Madre Giuseppina Vannini Hospital, Rome, Italy
| | - Laura Gragnani
- Center for Systemic Manifestations of Hepatitis Viruses (MaSVE), Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
| | - Krizia Pocino
- Department of Diagnostic Imaging and Laboratory Medicine, Fondazione Policlinico Universitario Agostino Gemelli - Università Cattolica del Sacro Cuore, Rome, Italy
| | - Cecilia Napodano
- Department of Diagnostic Imaging and Laboratory Medicine, Fondazione Policlinico Universitario Agostino Gemelli - Università Cattolica del Sacro Cuore, Rome, Italy
| | - Luca Miele
- Institute of Internal Medicine, Fondazione Policlinico Universitario Agostino Gemelli - Università Cattolica del Sacro Cuore, Rome, Italy
| | - Stefano Angelo Santini
- Department of Diagnostic Imaging and Laboratory Medicine, Fondazione Policlinico Universitario Agostino Gemelli - Università Cattolica del Sacro Cuore, Rome, Italy
| | - Mariapaola Marino
- Institute of General Pathology, Fondazione Policlinico Universitario Agostino Gemelli - Università Cattolica del Sacro Cuore, Rome, Italy
| | - Anna Linda Zignego
- Center for Systemic Manifestations of Hepatitis Viruses (MaSVE), Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Gian Ludovico Rapaccini
- Institute of Internal Medicine, Fondazione Policlinico Universitario Agostino Gemelli - Università Cattolica del Sacro Cuore, Rome, Italy
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Poller W, Haghikia A, Kasner M, Kaya Z, Bavendiek U, Wedemeier H, Epple HJ, Skurk C, Landmesser U. Cardiovascular Involvement in Chronic Hepatitis C Virus Infections - Insight from Novel Antiviral Therapies. J Clin Transl Hepatol 2018; 6:161-167. [PMID: 29951361 PMCID: PMC6018314 DOI: 10.14218/jcth.2017.00057] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 12/06/2017] [Accepted: 12/23/2017] [Indexed: 12/11/2022] Open
Abstract
Whereas statistical association of hepatitis C virus (HCV) infection with cardiomyopathy is long known, establishment of a causal relationship has not been achieved so far. Patients with advanced heart failure (HF) are mostly unable to tolerate interferon (IFN)-based treatment, resulting in limited experience regarding the possible pathogenic role of HCV in this patient group. HCV infection often triggers disease in a broad spectrum of extrahepatic organs, with innate immune and autoimmune pathogenic processes involved. The fact that worldwide more than 70 million patients are chronically infected with HCV illustrates the possible clinical impact arising if cardiomyopathies were induced or aggravated by HCV, resulting in progressive HF or severe arrhythmias. A novel path has been opened to finally resolve the long-standing question of cause-effect relationship between HCV infection and cardiac dysfunction, by the recent development of IFN-free, highly efficient, and well tolerable anti-HCV regimens. The new direct-acting antiviral (DAA) agents are highly virus-specific and lack unspecific side-effects upon cardiac function which have always confounded the interpretation of IFN treatment data. The actual frequency of unexplained HF in chronic HCV infection will be determined from a planned large-scale study. Whereas such patients probably constitute a rather small fraction of all those harboring HCV, they have major clinical relevance. It is not yet known which fraction of these patients will significantly benefit from HCV eradication, but this issue will be addressed now in a prospective study.
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Affiliation(s)
- Wolfgang Poller
- Department of Cardiology, CC11 Charité Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Berlin, Germany
- German Center for Cardiovascular Research (DZHK) Site Berlin, Berlin, Germany
- *Correspondence to: Wolfgang Poller, Department of Cardiology, Campus Benjamin Franklin, Charite Centrum 11, Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, Berlin 12200, Germany. Tel: +49-30-450-513765, Fax: +49-30-450-513984, E-mail:
| | - Arash Haghikia
- Department of Cardiology, CC11 Charité Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Berlin, Germany
- German Center for Cardiovascular Research (DZHK) Site Berlin, Berlin, Germany
| | - Mario Kasner
- Department of Cardiology, CC11 Charité Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Ziya Kaya
- German Center for Cardiovascular Research (DZHK) Site Heidelberg, Heidelberg, Germany
- Department of Cardiology, University Hospital, Heidelberg, Germany
| | | | | | - Hans-Jörg Epple
- Department of Gastroenterology, Infectiology and Rheumatology, CC 13, Charité Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Carsten Skurk
- Department of Cardiology, CC11 Charité Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Ulf Landmesser
- Department of Cardiology, CC11 Charité Campus Benjamin Franklin, Charité - Universitätsmedizin Berlin, Berlin, Germany
- German Center for Cardiovascular Research (DZHK) Site Berlin, Berlin, Germany
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Abstract
PURPOSE OF REVIEW More than 50% of hepatitis C virus (HCV) infected patients produce a mixed cryoglobulin and two-third of them will develop a symptomatic cryoglobulinemia vasculitis (CryoVas). In the present review, we aim at summarizing the most recent advances in diagnosis and treatment of HCV-CryoVas. RECENT FINDINGS The treatment of HCV-CryoVas has much changed during the last months. The recent emergence of new direct-acting (DAA) interferon (IFN)-free antivirals, enabling high cure rates with a very good safety profile now permit to cure most patients with HCV-CryoVas. Multidisciplinary consensus recommends to consider IFN-free DAAs as first-line treatment for HCV-CryoVas patients. Immunosuppressive treatments (i.e. rituximab, glucocorticosteroids, cyclophosphamide and plasmapheresis) remain an interesting therapeutic approach, in severe form of HCV-CryoVas, failure or contradiction to antiviral treatments. SUMMARY The great efficacy of DAA on HCV-CryoVas represents a major advance in clinical practice, as these new antivirals provide for the first time a well tolerated and definite treatment of such complication for most patients.
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Poller W, Kaya Z, Muche M, Kasner M, Skurk C, Kappert K, Tauber R, Escher F, Schultheiss HP, Epple HJ, Landmesser U. High incidence of cardiac dysfunction and response to antiviral treatment in patients with chronic hepatitis C virus infection. Clin Res Cardiol 2017; 106:551-556. [PMID: 28236021 DOI: 10.1007/s00392-017-1086-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 01/23/2017] [Indexed: 12/26/2022]
Abstract
AIMS Hepatitis C virus (HCV) has been associated with cardiomyopathies. Former anti-HCV therapies employing interferon could have serious side effects in patients with advanced heart failure since interferon may adversely impact upon cardiac function. We, therefore, examined whether the novel, interferon-free and highly virus-selective anti-HCV combination therapy might be applicable even in advanced or end-stage heart failure. METHODS AND RESULTS In a retrospective series of HCV-positive patients admitted to our institution with suspected cardiac disease, coronary, valvular or hypertensive heart disease was diagnosed in 70/146 (47.9%). Among the others, 36/76 (47.4%) had myocardial disease: LV (32.9%)/RV (13.2%) hypertrophy, RV dysfunction (13.2%)/dilation (6.6%), severe diastolic dysfunction (7.9%), pulmonary hypertension (22.4%). One critically ill patient listed for heart transplantation (HTX) had previously not tolerated an interferon-based protocol. To still improve her chance of enduring transplant survival, we attempted an interferon-free virus-selective antiviral combination drug protocol under careful monitoring of possible side effects. Regarding clinical status she tolerated this treatment well, with the exception of transient severe hyponatremia requiring substitution. Her NYHA functional class improved from II-IV before to class II immediately after successful complete HCV elimination. CONCLUSIONS Whereas prevalence of cardiac dysfunction and potential benefit from antiviral treatment was reported previously, there is lack of data regarding the response of patients with advanced heart failure. Since the highly HCV-selective drugs used above do not eliminate other cardiotropic viruses and have no direct effect on inflammation, massive improvement in such critically ill patients indicates a causal role of HCV in their cardiac failure, and of HCV elimination in their functional recovery.
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Affiliation(s)
- Wolfgang Poller
- Department of Cardiology, Campus Benjamin Franklin, CC11, Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, 12200, Berlin, Germany. .,German Centre for Cardiovascular Research (DZHK), Site Berlin, Germany.
| | - Ziya Kaya
- German Centre for Cardiovascular Research (DZHK), Site Heidelberg, Germany.,Department of Cardiology, University of Heidelberg, Heidelberg, Germany
| | - Marion Muche
- Department of Gastroenterology, Infectiology and Rheumatology, CC 13, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Mario Kasner
- Department of Cardiology, Campus Benjamin Franklin, CC11, Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, 12200, Berlin, Germany
| | - Carsten Skurk
- Department of Cardiology, Campus Benjamin Franklin, CC11, Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, 12200, Berlin, Germany
| | - Kai Kappert
- Institute for Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Rudolf Tauber
- Institute for Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Felicitas Escher
- German Centre for Cardiovascular Research (DZHK), Site Berlin, Germany.,Institute for Clinical Diagnostics and Therapy (IKDT), Berlin, Germany.,Department of Cardiology, CVK, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | | | - Hans-Jörg Epple
- Department of Gastroenterology, Infectiology and Rheumatology, CC 13, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Ulf Landmesser
- Department of Cardiology, Campus Benjamin Franklin, CC11, Charité-Universitätsmedizin Berlin, Hindenburgdamm 30, 12200, Berlin, Germany.,German Centre for Cardiovascular Research (DZHK), Site Berlin, Germany
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Cryoglobulin Test and Cryoglobulinemia Hepatitis C-Virus Related. Mediterr J Hematol Infect Dis 2017; 9:e2017007. [PMID: 28101312 PMCID: PMC5224812 DOI: 10.4084/mjhid.2017.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Accepted: 12/12/2016] [Indexed: 12/14/2022] Open
Abstract
Cryoglobulins are immunoglobulins that precipitate in serum at temperatures below 37°C and resolubilize upon warming. The clinical syndrome of cryoglobulinemia usually includes purpura, weakness, and arthralgia, but the underlying disease may also contribute other symptoms. Blood samples for cryoglobulin are collected, transported, clotted and spun at 37°C, before the precipitate is allowed to form when serum is stored at 4°C in a Wintrobe tube for at least seven days. The most critical and confounding factor affecting the cryoglobulin test is when the preanalytical phase is not fully completed at 37°C. The easiest way to quantify cryoglobulins is the cryocrit estimate. However, this approach has low accuracy and sensitivity. Furthermore, the precipitate should be resolubilized by warming to confirm that it is truly formed of cryoglobulins. The characterization of cryoglobulins requires the precipitate is several times washed, before performing immunofixation, a technique by which cryoglobulins can be classified depending on the characteristics of the detected immunoglobulins. These features imply a pathogenic role of these molecules which are consequently associated with a wide range of symptoms and manifestations. According to the Brouet classification, Cryoglobulins are grouped into three types by the immunochemical properties of immunoglobulins in the cryoprecipitate. The aim of this paper is to review the major aspects of cryoglobulinemia and the laboratory techniques used to detect and characterize cryoglobulins, taking into consideration the presence and consequences of cryoglobulinemia in Hepatitis C Virus (HCV) infection.
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