Structure, Immunoreactivity, and In Silico Epitope Determination of SmSPI S. mansoni Serpin for Immunodiagnostic Application
The human parasitic disease Schistosomiasis is caused by the Schistosoma trematode flatworm that infects freshwaters in tropical regions of the world, particularly in Sub-Saharan Africa, South America, and the Far-East. It has also been observed as an emerging disease in Europe, due to increased imm...
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| Vydané v: | Vaccines (Basel) Ročník 9; číslo 4; s. 322 |
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| Hlavní autori: | , , , , , , , , , , , , , , , , |
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| Jazyk: | English |
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| Abstract | The human parasitic disease Schistosomiasis is caused by the Schistosoma trematode flatworm that infects freshwaters in tropical regions of the world, particularly in Sub-Saharan Africa, South America, and the Far-East. It has also been observed as an emerging disease in Europe, due to increased immigration. In addition to improved therapeutic strategies, it is imperative to develop novel, rapid, and sensitive diagnostic tests that can detect the Schistosoma parasite, allowing timely treatment. Present diagnosis is difficult and involves microscopy-based detection of Schistosoma eggs in the feces. In this context, we present the 3.22 Å resolution crystal structure of the circulating antigen Serine protease inhibitor from S. mansoni (SmSPI), and we describe it as a potential serodiagnostic marker. Moreover, we identify three potential immunoreactive epitopes using in silico-based epitope mapping methods. Here, we confirm effective immune sera reactivity of the recombinant antigen, suggesting the further investigation of the protein and/or its predicted epitopes as serodiagnostic Schistosomiasis biomarkers. |
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| AbstractList | The human parasitic disease Schistosomiasis is caused by the Schistosoma trematode flatworm that infects freshwaters in tropical regions of the world, particularly in Sub-Saharan Africa, South America, and the Far-East. It has also been observed as an emerging disease in Europe, due to increased immigration. In addition to improved therapeutic strategies, it is imperative to develop novel, rapid, and sensitive diagnostic tests that can detect the Schistosoma parasite, allowing timely treatment. Present diagnosis is difficult and involves microscopy-based detection of Schistosoma eggs in the feces. In this context, we present the 3.22 Å resolution crystal structure of the circulating antigen Serine protease inhibitor from S. mansoni (SmSPI), and we describe it as a potential serodiagnostic marker. Moreover, we identify three potential immunoreactive epitopes using in silico-based epitope mapping methods. Here, we confirm effective immune sera reactivity of the recombinant antigen, suggesting the further investigation of the protein and/or its predicted epitopes as serodiagnostic Schistosomiasis biomarkers. The human parasitic disease Schistosomiasis is caused by the trematode flatworm that infects freshwaters in tropical regions of the world, particularly in Sub-Saharan Africa, South America, and the Far-East. It has also been observed as an emerging disease in Europe, due to increased immigration. In addition to improved therapeutic strategies, it is imperative to develop novel, rapid, and sensitive diagnostic tests that can detect the parasite, allowing timely treatment. Present diagnosis is difficult and involves microscopy-based detection of Schistosoma eggs in the feces. In this context, we present the 3.22 Å resolution crystal structure of the circulating antigen Serine protease inhibitor from (SmSPI), and we describe it as a potential serodiagnostic marker. Moreover, we identify three potential immunoreactive epitopes using in silico-based epitope mapping methods. Here, we confirm effective immune sera reactivity of the recombinant antigen, suggesting the further investigation of the protein and/or its predicted epitopes as serodiagnostic Schistosomiasis biomarkers. The human parasitic disease Schistosomiasis is caused by the Schistosoma trematode flatworm that infects freshwaters in tropical regions of the world, particularly in Sub-Saharan Africa, South America, and the Far-East. It has also been observed as an emerging disease in Europe, due to increased immigration. In addition to improved therapeutic strategies, it is imperative to develop novel, rapid, and sensitive diagnostic tests that can detect the Schistosoma parasite, allowing timely treatment. Present diagnosis is difficult and involves microscopy-based detection of Schistosoma eggs in the feces. In this context, we present the 3.22 Å resolution crystal structure of the circulating antigen Serine protease inhibitor from S. mansoni (SmSPI), and we describe it as a potential serodiagnostic marker. Moreover, we identify three potential immunoreactive epitopes using in silico-based epitope mapping methods. Here, we confirm effective immune sera reactivity of the recombinant antigen, suggesting the further investigation of the protein and/or its predicted epitopes as serodiagnostic Schistosomiasis biomarkers.The human parasitic disease Schistosomiasis is caused by the Schistosoma trematode flatworm that infects freshwaters in tropical regions of the world, particularly in Sub-Saharan Africa, South America, and the Far-East. It has also been observed as an emerging disease in Europe, due to increased immigration. In addition to improved therapeutic strategies, it is imperative to develop novel, rapid, and sensitive diagnostic tests that can detect the Schistosoma parasite, allowing timely treatment. Present diagnosis is difficult and involves microscopy-based detection of Schistosoma eggs in the feces. In this context, we present the 3.22 Å resolution crystal structure of the circulating antigen Serine protease inhibitor from S. mansoni (SmSPI), and we describe it as a potential serodiagnostic marker. Moreover, we identify three potential immunoreactive epitopes using in silico-based epitope mapping methods. Here, we confirm effective immune sera reactivity of the recombinant antigen, suggesting the further investigation of the protein and/or its predicted epitopes as serodiagnostic Schistosomiasis biomarkers. |
| Author | Musicò, Angelo Grifantini, Renata De Benedetti, Stefano Frigerio, Roberto Zanchetta, Nadia Gourlay, Louise Jane Bombaci, Mauro Bolognesi, Martino Gismondo, Maria Rita Cretich, Marina Mileto, Davide Colombo, Giorgio Grande, Romualdo Mussida, Alessandro Fassi, Enrico Mario Alessandro Di Pisa, Flavio Mancon, Alessandro |
| AuthorAffiliation | 6 Centro di Ricerca Pediatrica Romeo ed Enrica Invernizzi, Università degli Studi di Milano, 20133 Milano, Italy 3 Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via L. Mangiagalli 25, 20133 Milano, Italy 4 Istituto Nazionale Genetica Molecolare, Padiglione Romeo ed Enrica Invernizzi, IRCCS Ospedale Maggiore Policlinico, 20122 Milan, Italy; bombaci@ingm.org (M.B.); grifantini@ingm.org (R.G.) 5 Dipartimento di Chimica, Università di Pavia, V.le Taramelli 12, 27100 Pavia, Italy; g.colombo@unipv.it 1 Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy; stefano.debenedetti@unimi.it (S.D.B.); DiPisa.Flavio@hsr.it (F.D.P.); martino.bolognesi@unimi.it (M.B.) 8 Clinical Microbiology, Virology and Bioemergency Unit, Department of Biomedical and Clinical Sciences, Luigi Sacco Hospital, University of Milan, 20157 Milan, Italy 2 Consiglio Nazionale delle Ricerche, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), Via |
| AuthorAffiliation_xml | – name: 5 Dipartimento di Chimica, Università di Pavia, V.le Taramelli 12, 27100 Pavia, Italy; g.colombo@unipv.it – name: 8 Clinical Microbiology, Virology and Bioemergency Unit, Department of Biomedical and Clinical Sciences, Luigi Sacco Hospital, University of Milan, 20157 Milan, Italy – name: 4 Istituto Nazionale Genetica Molecolare, Padiglione Romeo ed Enrica Invernizzi, IRCCS Ospedale Maggiore Policlinico, 20122 Milan, Italy; bombaci@ingm.org (M.B.); grifantini@ingm.org (R.G.) – name: 3 Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via L. Mangiagalli 25, 20133 Milano, Italy – name: 1 Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy; stefano.debenedetti@unimi.it (S.D.B.); DiPisa.Flavio@hsr.it (F.D.P.); martino.bolognesi@unimi.it (M.B.) – name: 2 Consiglio Nazionale delle Ricerche, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), Via Mario Bianco 9, 20131 Milano, Italy; enrico.fassi@unimi.it (E.M.A.F.); marina.cretich@cnr.it (M.C.); angelo.musico94@gmail.com (A.M.); roberto.frigerio94@gmail.com (R.F.); alessandro.mussida@scitec.cnr.it (A.M.) – name: 7 UOC Microbiologia Clinica, Virologia e Diagnostica delle Bioemergenze ASST FBF Sacco, 20157 Milano, Italy; grande.romualdo@asst-fbf-sacco.it (R.G.); nadia.zanchetta@asst-fbf-sacco.it (N.Z.); mariarita.gismondo@unimi.it (M.R.G.); davide.mileto@unimi.it (D.M.); alessandro.mancon@unimi.it (A.M.) – name: 6 Centro di Ricerca Pediatrica Romeo ed Enrica Invernizzi, Università degli Studi di Milano, 20133 Milano, Italy |
| Author_xml | – sequence: 1 givenname: Stefano orcidid: 0000-0002-7787-9645 surname: De Benedetti fullname: De Benedetti, Stefano – sequence: 2 givenname: Flavio surname: Di Pisa fullname: Di Pisa, Flavio – sequence: 3 givenname: Enrico Mario Alessandro orcidid: 0000-0001-6282-4273 surname: Fassi fullname: Fassi, Enrico Mario Alessandro – sequence: 4 givenname: Marina orcidid: 0000-0001-8251-5275 surname: Cretich fullname: Cretich, Marina – sequence: 5 givenname: Angelo surname: Musicò fullname: Musicò, Angelo – sequence: 6 givenname: Roberto surname: Frigerio fullname: Frigerio, Roberto – sequence: 7 givenname: Alessandro surname: Mussida fullname: Mussida, Alessandro – sequence: 8 givenname: Mauro orcidid: 0000-0002-9887-4165 surname: Bombaci fullname: Bombaci, Mauro – sequence: 9 givenname: Renata surname: Grifantini fullname: Grifantini, Renata – sequence: 10 givenname: Giorgio surname: Colombo fullname: Colombo, Giorgio – sequence: 11 givenname: Martino orcidid: 0000-0002-9253-5170 surname: Bolognesi fullname: Bolognesi, Martino – sequence: 12 givenname: Romualdo surname: Grande fullname: Grande, Romualdo – sequence: 13 givenname: Nadia surname: Zanchetta fullname: Zanchetta, Nadia – sequence: 14 givenname: Maria Rita surname: Gismondo fullname: Gismondo, Maria Rita – sequence: 15 givenname: Davide surname: Mileto fullname: Mileto, Davide – sequence: 16 givenname: Alessandro surname: Mancon fullname: Mancon, Alessandro – sequence: 17 givenname: Louise Jane orcidid: 0000-0002-6369-2230 surname: Gourlay fullname: Gourlay, Louise Jane |
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| CitedBy_id | crossref_primary_10_1371_journal_pone_0282233 crossref_primary_10_3390_pathogens13080678 crossref_primary_10_1002_jmv_29923 crossref_primary_10_3390_pathogens11101095 crossref_primary_10_3390_vaccines10010071 crossref_primary_10_1016_j_heliyon_2023_e23115 |
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| Keywords | in silico epitope predictions Neglected Tropical Disease crystal structure circulating antigen immunodiagnostics schistosomiasis Serine protease inhibitor |
| Language | English |
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| Notes | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 Current affiliation: Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy. Current affiliation: Biocrystallography Unit, Division of Immunology, Transplantation, and Infectious Diseases, IRCCS Scientific Institute San Raffaele, 20132 Milan, Italy. |
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| Snippet | The human parasitic disease Schistosomiasis is caused by the Schistosoma trematode flatworm that infects freshwaters in tropical regions of the world,... The human parasitic disease Schistosomiasis is caused by the trematode flatworm that infects freshwaters in tropical regions of the world, particularly in... |
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| Title | Structure, Immunoreactivity, and In Silico Epitope Determination of SmSPI S. mansoni Serpin for Immunodiagnostic Application |
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