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Hogea MO, Ciomaga BF, Muntean MM, Muntean AA, Popa MI, Popa GL. Cystic Echinococcosis in the Early 2020s: A Review. Trop Med Infect Dis 2024; 9:36. [PMID: 38393125 PMCID: PMC10891927 DOI: 10.3390/tropicalmed9020036] [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: 12/08/2023] [Revised: 01/14/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
Cystic echinococcosis (CE) is a zoonosis caused by metacestodes, the larval stage of Echinococcus granulosus. Although the World Health Organization (WHO) has defined CE as a neglected disease, it is the second most important foodborne parasitic disease, and it remains an important public health issue, considering its zonal endemicity and potential morbidity. The control and prevention of CE is a relevant WHO target, especially from a One Health perspective, as the disease affects not only animals and humans but also the food chain. Since not all countries have a CE surveillance strategy or reporting system and specific management guidelines, recent epidemiological data are relatively scarce, and research concerning the specific geographical distribution of the disease is ongoing. To add new information to the subject, we have analyzed and collected data from national guidelines and several medical databases. Out of the 751 research articles that were originally identified, only 52 were included in the investigation after applying specific inclusion and exclusion criteria. Notable international projects that have provided significant contributions and had a positive impact are presented. The available data were correlated with WHO recommendations on the subject, thus showcasing the measures taken and those that are still needed to properly control the disease's spread.
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Affiliation(s)
- Mihai-Octav Hogea
- Department of Microbiology II, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.-O.H.); (B.-F.C.); (M.-M.M.); (A.-A.M.); (M.I.P.)
| | - Bogdan-Florin Ciomaga
- Department of Microbiology II, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.-O.H.); (B.-F.C.); (M.-M.M.); (A.-A.M.); (M.I.P.)
| | - Mădălina-Maria Muntean
- Department of Microbiology II, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.-O.H.); (B.-F.C.); (M.-M.M.); (A.-A.M.); (M.I.P.)
| | - Andrei-Alexandru Muntean
- Department of Microbiology II, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.-O.H.); (B.-F.C.); (M.-M.M.); (A.-A.M.); (M.I.P.)
- Department of Microbiology, Cantacuzino National Military Medical Institute for Research and Development, 050096 Bucharest, Romania
| | - Mircea Ioan Popa
- Department of Microbiology II, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania; (M.-O.H.); (B.-F.C.); (M.-M.M.); (A.-A.M.); (M.I.P.)
- Department of Microbiology, Cantacuzino National Military Medical Institute for Research and Development, 050096 Bucharest, Romania
| | - Gabriela Loredana Popa
- Parasitic Disease Department, Colentina Clinical Hospital, 020125 Bucharest, Romania
- Department of Microbiology, Faculty of Dentistry, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
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Darzi FA, Asgarian-Omran H, Sarvi S, Valadan R, Hataminejad M, Mayahi S, Shariatzadeh SA, Abbasi T, Galeh TM, Fakhar M, Harandi MF, Gholami S. Comparison of the Diagnostic Performance of Antigen B Purified from Sheep Hydatid Cyst Fluid (HCF) with Commercial ELISA Kit. Infect Disord Drug Targets 2024; 24:e200224227165. [PMID: 38415436 DOI: 10.2174/0118715265281114240131045945] [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: 09/26/2023] [Revised: 12/02/2023] [Accepted: 12/21/2023] [Indexed: 02/29/2024]
Abstract
INTRODUCTION Cystic echinococcosis (CE) is a zoonotic parasitic disease caused by the metacestode of Echinococcus granulosus. CE is a health problem in Middle Eastern countries, such as Iran. The purpose of this study was to purify subunit 8 KDa antigen B from crude sheep hydatid cyst fluid (HCF) and compare its sensitivity and specificity with a commercial human ELISA kit (PT-Hydatid-96). METHODS 28 sera samples were collected from hydatid cyst patients who had surgery for a hydatid cyst and had their disease confirmed by pathology after the surgery. Furthermore, 35 samples of healthy individuals with no history of hydatid cysts were collected, as were nine serum samples from parasite-infected non-CE patients. HCF was obtained from sheep fertile cysts at a Sari slaughterhouse and used as an antigen. In an indirect ELISA test, the B antigen was employed, and the results were compared to those from a commercial ELISA kit. RESULTS The results of this study were analyzed using the Kappa test. The commercial ELISA kit showed 17 cases (23.6%) positive, 44 cases (61.1%) negative, and 11 cases (15.3%) borderline. B antigen showed that 18 (25%), 43 (59.7 %), and 11 (15.3%) were positive, negative, and borderline, respectively. One sample (1.4% of 72 total samples) of 35 serum samples from healthy individuals was positive using B antigen-based ELISA. In addition, all nine serum samples from parasite-infected non-CE patients were negative for both tests. The sensitivity and specificity of the commercial ELISA kit have been evaluated at 60.7% and 100%, respectively. For B antigenbased ELISA, these values are 64.3 and 97.7%, respectively. CONCLUSION Antigen B produced from hydatid cyst fluid is a promising option for serological identification of hydatid cysts in both infected and healthy individuals. In an indirect ELISA test, hydatid fluid antigen could be used as a precise source of detection.
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Affiliation(s)
- Fatemeh Abdollahpour Darzi
- Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hossein Asgarian-Omran
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Shahabeddin Sarvi
- Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Reza Valadan
- Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Maryam Hataminejad
- Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Sabah Mayahi
- Doctor of Molecular Medicine, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyyed Ali Shariatzadeh
- Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Toktam Abbasi
- Student in Medical Laboratory Sciences, School of Paramedics, Islamic Azad University of Medical Sciences, Tehran, Iran
| | - Tahereh Mikaeili Galeh
- Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mahdi Fakhar
- Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Majid Fassihi Harandi
- Department of Parasitology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Shirzad Gholami
- Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
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Karpisheh E, Sadjjadi SM, Nekooeian AA, Sharifi Y. Evaluation of structural changes of Echinococcus granulosus protoscoleces following exposure to different protoscolicidal solutions evaluated by differential interference contrast microscopy. J Parasit Dis 2023; 47:850-858. [PMID: 38009156 PMCID: PMC10667190 DOI: 10.1007/s12639-023-01632-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 11/04/2023] [Indexed: 11/28/2023] Open
Abstract
The present study was aimed to assess the structural changes in protoscoleces of Echinococcus granulosus sensu stricto following exposure to different natural and chemical protoscolicidal agents using differential interference contrast (DIC)/Nomarski microscopy. Protoscoleces of sheep's liver cysts were collected aseptically. Individually, about 1000 protoscoleces were exposed to 0.5% silver nitrate, 20% hypertonic saline solution, 0.5% cetrimide solution and two different concentrations of garlic chloroformic extraction as well as phosphate-buffered saline (PBS). The protoscoleces viability was assessed using 0.1% eosin solution, and structural modifications in the protoscoleces were examined by DIC/Nomarski microscopy. The results revealed the degeneration of the tegument, disorganization of the hooks, and reduction of the size of the protoscoleces exposed to cetrimide, hypertonic sodium chloride, and silver nitrate. Furthermore, calcareous corpuscles became blurred and opaque and their numbers decreased in all the exposed samples except, those in PBS. The exposed protoscoleces to cetrimide and hypertonic sodium chloride solution showed extensive degeneration of the tegument and disorganization of the hooks. In the group exposed to 200 mg/ml chloroformic garlic extract, the protoscoleces' width decreased. The length, width, and number of calcareous corpuscles also decreased significantly in the silver nitrate-exposed protoscoleces. The study concludes that protoscoleces exposed to different solutions; cetrimide 0.5% and hypertonic sodium chloride 20% caused more pronounced structural changes in the exposed protoscoleces. These changes were well demonstrated by DIC microscopy and can be used as a supplementary tool to evaluate the effects of protoscolicidal agents. Supplementary Information The online version contains supplementary material available at 10.1007/s12639-023-01632-4.
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Affiliation(s)
- Elaheh Karpisheh
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, P.O. Box 71345-1735, Shiraz, Iran
| | - Seyed Mahmoud Sadjjadi
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, P.O. Box 71345-1735, Shiraz, Iran
| | - Ali Akbar Nekooeian
- Department of Pharmacology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Yosef Sharifi
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, P.O. Box 71345-1735, Shiraz, Iran
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Chen C, Liang H, Peng F, Zhong S, Lu Y, Guo G, Li L. Determination of echinococcosis IgG antibodies using magnetic bead-based chemiluminescence immunoassay. J Immunol Methods 2023; 520:113513. [PMID: 37307908 DOI: 10.1016/j.jim.2023.113513] [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: 01/28/2023] [Revised: 05/04/2023] [Accepted: 06/07/2023] [Indexed: 06/14/2023]
Abstract
Echinococcosis is a kind of parasitic disease shared by humans and animals. The aim of this study was to establish a new detection method for echinococcosis screening using magnetic bead-based chemiluminescence immunoassay (CLIA). A magnetic bead-based CLIA to determine anti-echinococcosis IgG antibodies was optimized and established. The sensitivity, accuracy, precision and recovery rate were evaluated using the national reference serum, and the reference interval, specificity and comparison assays were performed using the clinical negative/positive echinococcosis serum samples. This study established a new CLIA to determine anti-echinococcosis IgG antibodies. The sensitivity of this CLIA method was higher than that of the registered ELISA kit and the national standard, the conformance rate of the negative/positive references was 100% (8/8), the CVs of the sensitivity reference were all below 5%, and the CVs of the precision reference were 5.7%. There was no obvious cross-reactivity with the common parasitic disease-positive serum and serum interferents. Clinical sample testing found that the cutoff value of this CLIA was 5537.15 (RLU), and there was no significant difference between the CLIA method and the registered ELISA kit. This study established a fully automated CLIA method with high sensitivity, specificity, accuracy, precision, recovery rate, and satisfactory clinical testing performance, which may provide a new choice for echinococcosis screening.
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Affiliation(s)
- Cuicui Chen
- Guangzhou Youdi Bio-Technology Co., Ltd., Guangzhou 510663, China; Jinan Laide Biotechnology Co., Ltd., Jinan 271100, China
| | - Huankun Liang
- Guangzhou Youdi Bio-Technology Co., Ltd., Guangzhou 510663, China
| | - Fenglan Peng
- Taian Disabled Soldiers' Hospital of Shandong Province, Taian 271099, China
| | - Shuhai Zhong
- Guangzhou Youdi Bio-Technology Co., Ltd., Guangzhou 510663, China
| | - Yanhong Lu
- Guangzhou Youdi Bio-Technology Co., Ltd., Guangzhou 510663, China
| | - Guiling Guo
- Guangzhou Youdi Bio-Technology Co., Ltd., Guangzhou 510663, China
| | - Laiqing Li
- Guangzhou Youdi Bio-Technology Co., Ltd., Guangzhou 510663, China; Jinan Laide Biotechnology Co., Ltd., Jinan 271100, China.
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Comparison and evaluation of analytic and diagnostic performances of four commercial kits for the detection of antibodies against Echinococcus granulosus and multilocularis in human sera. Comp Immunol Microbiol Infect Dis 2022; 86:101816. [PMID: 35472655 DOI: 10.1016/j.cimid.2022.101816] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/06/2022] [Accepted: 04/12/2022] [Indexed: 02/08/2023]
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Evaluation of two heterologous recombinant antigens for the serological diagnosis of human polycystic echinococcosis. J Helminthol 2022; 96:e21. [PMID: 35297359 DOI: 10.1017/s0022149x22000086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Polycystic echinococcosis (PE) is a zoonosis endemic in the Neotropical region of the Americas. It is caused by the larval stage of the cestode Echinococcus vogeli, which develops as harmful cysts that slowly grow in the liver, lungs and other organs of humans and other host species. Human PE diagnosis is usually based on clinical and epidemiological aspects and imaging techniques, often requiring confirmation by immunological assays. The currently available serological tests for detecting antibodies against Echinococcus spp. are mostly based on complex, variable and poorly characterized mixtures of native parasite antigens, which impairs specificity and/or sensitivity. In this scenario, the evaluation of well-characterized alternative antigens is urgently needed for the improvement of PE diagnosis. Here, two subunits (AgB8/1 and AgB8/2) of the major secretory antigen from Echinococcus granulosus (antigen B (AgB)), of diagnostic value for cystic echinococcosis, were validated for PE diagnosis. These antigens, produced as pure recombinant proteins (rAgB8/1 and rAgB8/2) in Escherichia coli, allowed detecting specific immunoglobulin G antibodies in sera from PE patients in an enzyme-linked immunosorbent assay, with sensitivities of 83.72% and 81.40%, respectively, and specificities of 83.12% and 80.09%, respectively. The use of recombinant proteins overcomes difficulties to obtain parasite material and reduced non-specific reactions and costs. Our results demonstrated reproducibility and accuracy high enough to be considered valid according to the acceptance criteria for Food and Drug Administration assay validation. This qualifies rAgB8/1 and rAgB8/2 as potential substitutes for the currently used parasite crude or partially purified antigens.
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Biosa G, Bonelli P, Pisanu S, Ghisaura S, Santucciu C, Peruzzu A, Garippa G, Uzzau S, Masala G, Pagnozzi D. Proteomic characterization of Echinococcus granulosus sensu stricto, Taenia hydatigena and Taenia multiceps metacestode cyst fluids. Acta Trop 2022; 226:106253. [PMID: 34822852 DOI: 10.1016/j.actatropica.2021.106253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 10/25/2021] [Accepted: 11/17/2021] [Indexed: 12/28/2022]
Abstract
Cystic echinococcosis (CE) diagnosis by means of serological assays is hampered by the presence of parasites closely related to Echinococcus granulosus sensu lato (s.l.), responsible of the zoonotic disease and with which share cross-reacting antigens. Thus, improvements on the characterization of Echinococcus specific antigens expressed in the larval stage are required, in order to provide useful information for the development of immunological assays for the serodiagnosis of CE in sheep. Here, the proteome of the hydatid cyst fluids (HFs) of Echinococcus granulosus (hydatid fluid, EgHF) and other ovine parasites cyst fluids (CFs), Taenia hydatigena (ThCF) and Taenia multiceps (TmCF) were analyzed by a shotgun proteomic approach. Parasite and host protein profiles in the three types of cyst fluids were characterized and compared. Among the identified proteins, differential parasitic markers with serodiagnostic potential, due to their well-known immunoreactivity in human, included Ag5, AgB proteins, 8-kDa glycoproteins, hydatid disease diagnostic antigen P29 and major egg antigen P40. In particular, seven proteoforms of AgB and 8-kDa glycoprotein resulted to be the most promising diagnostic biomarkers, as they might predict CE in ovine and discriminate between different types of parasites.
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Tamarozzi F, Silva R, Fittipaldo VA, Buonfrate D, Gottstein B, Siles-Lucas M. Serology for the diagnosis of human hepatic cystic echinococcosis and its relation with cyst staging: A systematic review of the literature with meta-analysis. PLoS Negl Trop Dis 2021; 15:e0009370. [PMID: 33909640 PMCID: PMC8081258 DOI: 10.1371/journal.pntd.0009370] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 04/07/2021] [Indexed: 01/13/2023] Open
Abstract
Background The diagnosis of cystic echinococcosis (CE) is primarily based on imaging, while serology should be applied when imaging is inconclusive. CE cyst stage has been reported among the most important factors influencing the outcome of serodiagnosis. We performed a systematic review and meta-analysis of the relation between cyst stage of hepatic CE and diagnostic sensitivity of serological tests, to evaluate whether their relation is a consistent finding and provide guidance for the interpretation of results of serological tests. Methodology/Principal findings MEDLINE, EMBASE, CENTRAL, and Lilacs databases were searched on December 1st 2019. Original studies published after 2003 (year of publication of the CE cyst classification), reporting sensitivity of serological tests applied to the diagnosis of human hepatic CE, as diagnosed and staged by imaging, were included. The quality of studies was assessed using the Newcastle-Ottawa Scale. Data from 14 studies were included in the meta-analysis. Summary estimates of sensitivities and 95% confidence intervals were obtained using random effects meta-analysis. Overall, test sensitivity was highest in the presence of CE2 and CE3 (CE3a and/or CE3b), and lowest in the presence of CE5 and CE4 cysts. ELISA, ICT and WB showed the highest sensitivities, while IHA performed worst. Conclusions/Significance The results of our study confirm the presence of a clear and consistent relation between cyst stage and serological tests results. Limitations of evidence included the heterogeneity of the antigenic preparations used, which prevented to determine whether the relation between cyst stage and sensitivity was influenced by the type of antigenic preparation, the paucity of studies testing the same panel of sera with different assays, and the lack of studies assessing the performance of the same assay in both field and hospital-based settings. Our results indicate the absolute need to consider cyst staging when evaluating serological results of patients with hepatic CE. Cystic echinococcosis is a neglected zoonosis induced by the development of parasitic cysts in intermediate hosts, including humans, mostly in the liver. The diagnosis of CE is based on imaging. As CE cysts may assume different aspects (stages), the range of differential diagnoses is broad, from harmless simple cysts to neoplasms. Serological assays for the detection of serum antibodies are applied when imaging is inconclusive, but their performance depend on a number of factors, among which cyst stage has been reported as important. If this was a robust finding, it would be absolutely required to interpret serological findings in the light of CE cyst staging. The results of our systematic review and meta-analysis of the relation between cyst stage of hepatic CE and diagnostic sensitivity of serological tests confirmed that such relation is clear and consistent, and indicate the absolute need to consider cyst staging when evaluating serology results of patients with hepatic CE.
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Affiliation(s)
- Francesca Tamarozzi
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar, Verona, Italy
- * E-mail:
| | - Ronaldo Silva
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar, Verona, Italy
| | - Veronica Andrea Fittipaldo
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar, Verona, Italy
| | - Dora Buonfrate
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar, Verona, Italy
| | - Bruno Gottstein
- Institute of Infectious Diseases, Faculty of Medicine, University of Bern, Bern, Switzerland
| | - Mar Siles-Lucas
- Instituto de Recursos Naturales y Agrobiología de Salamanca (IRNASA-CSIC), Salamanca, Spain
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Santucciu C, Bonelli P, Peruzzu A, Fancellu A, Marras V, Carta A, Mastrandrea S, Bagella G, Piseddu T, Profili S, Porcu A, Masala G. Cystic Echinococcosis: Clinical, Immunological, and Biomolecular Evaluation of Patients from Sardinia (Italy). Pathogens 2020; 9:E907. [PMID: 33143032 PMCID: PMC7693143 DOI: 10.3390/pathogens9110907] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 02/07/2023] Open
Abstract
Cystic echinococcosis (CE), a zoonotic disease caused by the larval stage of the tapeworm Echinococcus granulosus sensu lato (s.l.), is a worldwide public health problem. Echinococcus granulosus sensu stricto (s.s.), associated with G1 and G3 genotypes, is endemic with high prevalence in the Mediterranean basin. The parasite's life cycle comprises definitive hosts (canids) and intermediate hosts (ruminants) and can occasionally involve humans. The main aim of this research was to confirm the diagnosis of 13 patients suspected of CE who presented different complications and needed the surgical removal of the cysts. We also wanted to understand and clarify more the diagnosis of echinococcosis in humans. For this purpose, the patients first underwent cyst evaluation by ultrasound (US), immunological analysis, and then total pericystectomy, followed by parasitological, histopathological, and molecular biology examinations of the cysts. US stadiated one CE1, one CE2, eight CE3b, one CE4, and two CE5; immunology evidenced nine positives; histopathology confirmed 11 CE cysts, of which 8 fertile presenting protoscoleces were identified as E. granulosus s.s. by molecular biology, genotyped as three G1 and four G3 by neighbor-joining (NJ) phylogenetic tree. In conclusion, the results showed that 11 patients were affected by E. granulosus s.s. G1 orG3, and 2 cystic neoformations were of non-parasitic origin.
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Affiliation(s)
- Cinzia Santucciu
- OIE Reference Laboratory for Echinococcosis, National Reference Center for Echinococcosis (CeNRE), IZS della Sardegna, 07100 Sassari, Italy; (P.B.); (A.P.); (S.M.); (T.P.); (G.M.)
| | - Piero Bonelli
- OIE Reference Laboratory for Echinococcosis, National Reference Center for Echinococcosis (CeNRE), IZS della Sardegna, 07100 Sassari, Italy; (P.B.); (A.P.); (S.M.); (T.P.); (G.M.)
| | - Angela Peruzzu
- OIE Reference Laboratory for Echinococcosis, National Reference Center for Echinococcosis (CeNRE), IZS della Sardegna, 07100 Sassari, Italy; (P.B.); (A.P.); (S.M.); (T.P.); (G.M.)
| | - Alessandro Fancellu
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (A.F.); (A.P.)
| | - Vincenzo Marras
- Department of Biomedical Sciences, Institute of Pathology, University of Sassari, 07100 Sassari, Italy;
| | - Antonello Carta
- U.O.C. di Radiologia, A.O.U., 07100 Sassari, Italy; (A.C.); (S.P.)
| | - Scilla Mastrandrea
- OIE Reference Laboratory for Echinococcosis, National Reference Center for Echinococcosis (CeNRE), IZS della Sardegna, 07100 Sassari, Italy; (P.B.); (A.P.); (S.M.); (T.P.); (G.M.)
- U.O.C. di Malattie Infettive, A.O.U., 07100 Sassari, Italy
| | - Giorgio Bagella
- Radiology Unit, University Hospital of Sassari, 07100 Sassari, Italy;
| | - Toni Piseddu
- OIE Reference Laboratory for Echinococcosis, National Reference Center for Echinococcosis (CeNRE), IZS della Sardegna, 07100 Sassari, Italy; (P.B.); (A.P.); (S.M.); (T.P.); (G.M.)
| | - Stefano Profili
- U.O.C. di Radiologia, A.O.U., 07100 Sassari, Italy; (A.C.); (S.P.)
| | - Alberto Porcu
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (A.F.); (A.P.)
| | - Giovanna Masala
- OIE Reference Laboratory for Echinococcosis, National Reference Center for Echinococcosis (CeNRE), IZS della Sardegna, 07100 Sassari, Italy; (P.B.); (A.P.); (S.M.); (T.P.); (G.M.)
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Petrone L, Albrich WC, Tamarozzi F, Frischknecht M, Gomez-Morales MA, Teggi A, Hoffmann M, Goletti D. Species specificity preliminary evaluation of an IL-4-based test for the differential diagnosis of human echinococcosis. Parasite Immunol 2020; 42:e12695. [PMID: 31884696 PMCID: PMC7154717 DOI: 10.1111/pim.12695] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 12/18/2019] [Accepted: 12/20/2019] [Indexed: 12/14/2022]
Abstract
The diagnosis of cystic echinococcosis (CE) is based on imaging, while serology is a complementary test of particular use when imaging is inconclusive. Serology has several limitations. Among them, false‐positive results are often obtained in subjects with alveolar echinococcosis (AE), rendering difficult the differential diagnosis. We set up an immune assay based on IL‐4‐specific production after stimulating whole blood with an antigen B (AgB)‐enriched fraction from E granulosus that associates with CE and CE cysts in active stage. We aimed to evaluate potential cross‐reactivity of this test using samples from patients with AE. Twelve patients with AE were recruited; IL‐4 levels ranged from 0 to 0.07 pg/mL. Based on the previously identified cut‐off of 0.39 pg/mL using samples from patients with CE, none of samples from AE patients scored positive. In contrast, almost 80% of samples from AE patients scored positive in serology tests based on different E granulosus‐derived antigenic preparations. Our preliminary data show that this experimental whole‐blood assay has no cross‐reactivity in our cohort of patients with AE, in turn indicating a high specificity of the assay for CE diagnosis. This result supports further work towards the development of improved diagnostic tests for CE.
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Affiliation(s)
- Linda Petrone
- Translational Research Unit, Department of Epidemiology and Preclinical Research, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Werner C Albrich
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Francesca Tamarozzi
- Foodborne and Neglected Parasitoses Unit, Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Manuel Frischknecht
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Maria Angeles Gomez-Morales
- Foodborne and Neglected Parasitoses Unit, Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Antonella Teggi
- Department of Infectious and Tropical Diseases, Sant'Andrea Hospital University of Rome "Sapienza", Rome, Italy
| | - Matthias Hoffmann
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland.,Medical Department, Infectious Diseases Services, Kantonsspital Olten, Olten, Switzerland
| | - Delia Goletti
- Translational Research Unit, Department of Epidemiology and Preclinical Research, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
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11
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Han X, Kim JG, Wang H, Cai H, Ma X, Duong DH, Ahn CS, Kang I, Kong Y. Survey of echinococcoses in southeastern Qinghai Province, China, and serodiagnostic insights of recombinant Echinococcus granulosus antigen B isoforms. Parasit Vectors 2019; 12:323. [PMID: 31242932 PMCID: PMC6593596 DOI: 10.1186/s13071-019-3569-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 06/17/2019] [Indexed: 12/13/2022] Open
Abstract
Background Echinococcoses, caused by metacestodes of Echinococcus granulosus (cystic echinococcosis; CE) and E. multilocularis (alveolar echinococcosis; AE), represent major emerging parasitic diseases. These enzootic helminthiases invoke significant public health concerns and social burdens in endemic areas. The diseases are prevalent in the Qinghai-Tibetan Plateau, China, while community-based epidemiological studies have been scarcely reported. We surveyed echinococcosis patients in the southeastern Qinghai Province, China, to better understand the concurrent epidemiological situation in this area. Methods During July and August of 2013 and 2014, we screened echinococcosis patients at Yushu and Golog Prefectures, Qinghai Province, China, in a diagnostic campaign. A total of 2856 people (male:female ratio, 1:1.12; mean age, 34.6 years; age range, 6–88 years) were ultrasonographically examined for the presence of hepatic echinococcal cysts. We also collected serum samples from patients and analyzed antibody reactivity against recombinant forms of diverse E. granulosus antigen Bs (rEgAgB1-5) by enzyme-linked immunosorbent assay. Results We detected 134 patients whose imaging scans were compatible with CE (115 cases) and AE (20 patients). One patient might have been infected with both CE and AE. The overall incidence was 4.7% (CE, 4.0%; AE, 0.7%). A large proportion (67.5%) of CE patients was diagnosed at active and transitional CE1-CE3 stages in their late 30s. The AE cases were generally detected at advanced stage in patients at early 20s (60%). Analysis of the receiver operating characteristic curve and Youden’s index indicated that rEgAgB2 was the most promising biomarker, followed by rEgAgB3 and rEgAgB1. Overall, sensitivity and specificity of rEgAgB1-3 were 84.5–92.7% and 91.9–94.6%, respectively. rEgAgB4 and 5 showed low sensitivity with high cross-reactivity. Conclusions Our results strongly suggest that disability-adjusted life years related to echinococcoses in Qinghai-Tibetan areas might be more serious than previously considered. Control and prevention strategy against CE and AE are highly required in these areas. In addition to ultrasonography, serological tests might provide supportive data. However, serological data should be carefully interpreted for differential diagnosis, especially in areas where both CE and AE are co-endemic. Electronic supplementary material The online version of this article (10.1186/s13071-019-3569-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiumin Han
- Qinghai Provincial People's Hospital, Xining, 810007, China.,Qinghai Province Institute for Endemic Diseases Prevention and Control, Qinghai Centers for Disease Prevention and Control, Xining, 811602, China
| | - Jeong-Geun Kim
- Department of Molecular Parasitology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Suwon, 16419, Korea
| | - Hu Wang
- Qinghai Province Institute for Endemic Diseases Prevention and Control, Qinghai Centers for Disease Prevention and Control, Xining, 811602, China.,Endemic Disease Administration Office, Qinghai Province Health and Family Planning Commission, Xining, 811602, China
| | - Huixia Cai
- Qinghai Province Institute for Endemic Diseases Prevention and Control, Qinghai Centers for Disease Prevention and Control, Xining, 811602, China.,Department of Molecular Parasitology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Suwon, 16419, Korea
| | - Xiao Ma
- Qinghai Province Institute for Endemic Diseases Prevention and Control, Qinghai Centers for Disease Prevention and Control, Xining, 811602, China
| | - Duc Hieu Duong
- Department of Molecular Parasitology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Suwon, 16419, Korea
| | - Chun-Seob Ahn
- Department of Molecular Parasitology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Suwon, 16419, Korea
| | - Insug Kang
- Department of Molecular Biology and Biochemistry, Kyung Hee University College of Medicine, Seoul, 02447, Korea
| | - Yoon Kong
- Department of Molecular Parasitology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Suwon, 16419, Korea.
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12
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Carcangiu L, Pisanu S, Tore S, Addis MF, Zini E, Uzzau S, Pagnozzi D. All Cats are Gray in the Dark: Enrichment/Depletion Approaches for Biomarker Discovery on Felis catus Plasma. Proteomics 2018; 18:e1800191. [PMID: 30216667 DOI: 10.1002/pmic.201800191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 09/03/2018] [Indexed: 11/08/2022]
Abstract
In veterinary medicine, assay performance is often affected by the lack of species-specific diagnostic tools. Reliable biomarkers might be identified by investigating biological fluids of the species of interest, but protein sequence databases are often incomplete and human-specific devices for reducing sample complexity might fail when applied to animal plasma. Here, seven commercial methods based on different capturing agents (anti-human antibodies, affinity ligands, mixture of antibodies and ligands, and combinatorial peptide ligand libraries) are applied to cat plasma and evaluated in terms of yield, identified proteins/ peptides, and relative abundance by high-resolution shotgun proteomics and label-free quantitation. As a result, anti-human antibody-based methods are unsatisfactory. Most fail in reducing albumin and immunoglobulins, and some lead to a substantial removal of other highly abundant proteins, probably because of nonspecific interactions. A protein A/dye ligand-based method is efficient in reducing immunoglobulins, fibrinogen, and apolipoprotein A1 and A2, but not albumin, and protein identifications do not increase. Only peptide ligand libraries flatten the dynamic range, and increased protein identification (59.0%). Albumin and immunoglobulins are successfully depleted (60.7% and 35.9%, respectively). Although further studies will be required for reinforcing our observations, this work can provide a useful guide for cat plasma pretreatment in biomarker discovery studies.
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Affiliation(s)
- Laura Carcangiu
- Istituto Veterinario di Novara, Granozzo con Monticello, Novara, Italy
| | - Salvatore Pisanu
- Porto Conte Ricerche, Science and Technology Park of Sardinia, Alghero, Sassari, Italy
| | - Silvia Tore
- Sardegna Ricerche, Piscina Manna, Pula, Cagliari, Italy
| | - Maria Filippa Addis
- Porto Conte Ricerche, Science and Technology Park of Sardinia, Alghero, Sassari, Italy
| | - Eric Zini
- Istituto Veterinario di Novara, Granozzo con Monticello, Novara, Italy.,Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.,Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Italy
| | - Sergio Uzzau
- Porto Conte Ricerche, Science and Technology Park of Sardinia, Alghero, Sassari, Italy
| | - Daniela Pagnozzi
- Porto Conte Ricerche, Science and Technology Park of Sardinia, Alghero, Sassari, Italy
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13
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Pisanu S, Biosa G, Carcangiu L, Uzzau S, Pagnozzi D. A human proteomic dataset from untreated and depleted/enriched serum samples. Data Brief 2018; 19:1765-1767. [PMID: 29988996 PMCID: PMC6034580 DOI: 10.1016/j.dib.2018.06.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/18/2018] [Indexed: 10/29/2022] Open
Abstract
We present a proteomic dataset generated from a human serum sample and the enriched/depleted fractions obtained by seven commercial products. This report is related to the research article entitled "Comparative evaluation of seven commercial products for human serum enrichment/depletion by shotgun proteomics" [1]. All samples were analyzed by LC-MS/MS, label free quantitation using the spectral counting approach, and Gene Ontology (GO) annotation. Protein relative abundances and functions were reported.
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Affiliation(s)
- Salvatore Pisanu
- Porto Conte Ricerche, Science and Technology Park of Sardinia, Alghero, Sassari, Tramariglio, Italy
| | - Grazia Biosa
- Porto Conte Ricerche, Science and Technology Park of Sardinia, Alghero, Sassari, Tramariglio, Italy
| | - Laura Carcangiu
- Porto Conte Ricerche, Science and Technology Park of Sardinia, Alghero, Sassari, Tramariglio, Italy
| | - Sergio Uzzau
- Porto Conte Ricerche, Science and Technology Park of Sardinia, Alghero, Sassari, Tramariglio, Italy
| | - Daniela Pagnozzi
- Porto Conte Ricerche, Science and Technology Park of Sardinia, Alghero, Sassari, Tramariglio, Italy
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