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Ossowski MS, Gallardo JP, Niborski LL, Rodríguez-Durán J, Lapadula WJ, Juri Ayub M, Chadi R, Hernandez Y, Fernandez ML, Potenza M, Gómez KA. Characterization of Novel Trypanosoma cruzi-Specific Antigen with Potential Use in the Diagnosis of Chagas Disease. Int J Mol Sci 2024; 25:1202. [PMID: 38256275 PMCID: PMC10816184 DOI: 10.3390/ijms25021202] [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: 11/07/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 01/24/2024] Open
Abstract
Chagas disease is caused by the parasite Trypanosoma cruzi. In humans, it evolves into a chronic disease, eventually resulting in cardiac, digestive, and/or neurological disorders. In the present study, we characterized a novel T. cruzi antigen named Tc323 (TcCLB.504087.20), recognized by a single-chain monoclonal antibody (scFv 6B6) isolated from the B cells of patients with cardiomyopathy related to chronic Chagas disease. Tc323, a ~323 kDa protein, is an uncharacterized protein showing putative quinoprotein alcohol dehydrogenase-like domains. A computational molecular docking study revealed that the scFv 6B6 binds to an internal domain of Tc323. Immunofluorescence microscopy and Western Blot showed that Tc323 is expressed in the main developmental forms of T. cruzi, localized intracellularly and exhibiting a membrane-associated pattern. According to phylogenetic analysis, Tc323 is highly conserved throughout evolution in all the lineages of T. cruzi so far identified, but it is absent in Leishmania spp. and Trypanosoma brucei. Most interestingly, only plasma samples from patients infected with T. cruzi and those with mixed infection with Leishmania spp. reacted against Tc323. Collectively, our findings demonstrate that Tc323 is a promising candidate for the differential serodiagnosis of chronic Chagas disease in areas where T. cruzi and Leishmania spp. infections coexist.
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Affiliation(s)
- Micaela S. Ossowski
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular “Dr. Héctor N. Torres” (INGEBI-CONICET), Buenos Aires 1428, Argentina; (M.S.O.); (J.P.G.); (L.L.N.); (J.R.-D.)
| | - Juan Pablo Gallardo
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular “Dr. Héctor N. Torres” (INGEBI-CONICET), Buenos Aires 1428, Argentina; (M.S.O.); (J.P.G.); (L.L.N.); (J.R.-D.)
| | - Leticia L. Niborski
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular “Dr. Héctor N. Torres” (INGEBI-CONICET), Buenos Aires 1428, Argentina; (M.S.O.); (J.P.G.); (L.L.N.); (J.R.-D.)
| | - Jessica Rodríguez-Durán
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular “Dr. Héctor N. Torres” (INGEBI-CONICET), Buenos Aires 1428, Argentina; (M.S.O.); (J.P.G.); (L.L.N.); (J.R.-D.)
| | - Walter J. Lapadula
- Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), Facultad de Química Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis 5700, Argentina; (W.J.L.); (M.J.A.)
| | - Maximiliano Juri Ayub
- Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), Facultad de Química Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis 5700, Argentina; (W.J.L.); (M.J.A.)
| | - Raúl Chadi
- Hospital General de Agudos “Dr. Ignacio Pirovano”, Buenos Aires 1430, Argentina;
| | - Yolanda Hernandez
- Instituto Nacional de Parasitología “Dr. Mario Fatala Chaben”, Buenos Aires 1063, Argentina; (Y.H.); (M.L.F.)
| | - Marisa L. Fernandez
- Instituto Nacional de Parasitología “Dr. Mario Fatala Chaben”, Buenos Aires 1063, Argentina; (Y.H.); (M.L.F.)
| | - Mariana Potenza
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular “Dr. Héctor N. Torres” (INGEBI-CONICET), Buenos Aires 1428, Argentina; (M.S.O.); (J.P.G.); (L.L.N.); (J.R.-D.)
| | - Karina A. Gómez
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular “Dr. Héctor N. Torres” (INGEBI-CONICET), Buenos Aires 1428, Argentina; (M.S.O.); (J.P.G.); (L.L.N.); (J.R.-D.)
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Niborski LL, Potenza M, Chirivi RGS, Simonetti L, Ossowski MS, Grippo V, May M, Staquicini DI, Parodi-Talice A, Robello C, Comini MA, Alonso GD, Raats JMH, Gómez KA. Recombinant antibody against Trypanosoma cruzi from patients with chronic Chagas heart disease recognizes mammalian nervous system. EBioMedicine 2021; 63:103206. [PMID: 33429173 PMCID: PMC7809174 DOI: 10.1016/j.ebiom.2020.103206] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/15/2020] [Accepted: 11/26/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND To deeply understand the role of antibodies in the context of Trypanosoma cruzi infection, we decided to characterize A2R1, a parasite antibody selected from single-chain variable fragment (scFv) phage display libraries constructed from B cells of chronic Chagas heart disease patients. METHODS Immunoblot, ELISA, cytometry, immunofluorescence and immunohistochemical assays were used to characterize A2R1 reactivity. To identify the antibody target, we performed an immunoprecipitation and two-dimensional electrophoresis coupled to mass spectrometry and confirmed A2R1 specific interaction by producing the antigen in different expression systems. Based on these data, we carried out a comparative in silico analysis of the protein target´s orthologues, focusing mainly on post-translational modifications. FINDINGS A2R1 recognizes a parasite protein of ~50 kDa present in all life cycle stages of T. cruzi, as well as in other members of the kinetoplastid family, showing a defined immunofluorescence labeling pattern consistent with the cytoskeleton. A2R1 binds to tubulin, but this interaction relies on its post-translational modifications. Interestingly, this antibody also targets mammalian tubulin only present in brain, staining in and around cell bodies of the human peripheral and central nervous system. INTERPRETATION Our findings demonstrate for the first time the existence of a human antibody against T. cruzi tubulin capable of cross-reacting with a human neural protein. This work re-emphasizes the role of molecular mimicry between host and parasitic antigens in the development of pathological manifestations of T. cruzi infection.
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Affiliation(s)
- Leticia L Niborski
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina
| | - Mariana Potenza
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina
| | | | | | - Micaela S Ossowski
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina
| | - Vanina Grippo
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina
| | - Maria May
- Instituto de Biología y Medicina Experimental (IBYME-CONICET), Buenos Aires, Argentina
| | - Daniela I Staquicini
- Departamento de Microbiología, Inmunología e Parasitología, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Adriana Parodi-Talice
- Unidad de Biología Molecular, Institut Pasteur de Montevideo, Montevideo, Uruguay; Sección Genética, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Carlos Robello
- Unidad de Biología Molecular, Institut Pasteur de Montevideo, Montevideo, Uruguay; Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Marcelo A Comini
- Group Redox Biology of Trypanosomes, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Guillermo D Alonso
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina
| | | | - Karina A Gómez
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina.
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Chaaya N, Shahsavarian MA, Maffucci I, Friboulet A, Offmann B, Léger JB, Rousseau S, Avalle B, Padiolleau-Lefèvre S. Genetic background and immunological status influence B cell repertoire diversity in mice. Sci Rep 2019; 9:14261. [PMID: 31582818 PMCID: PMC6776527 DOI: 10.1038/s41598-019-50714-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 09/16/2019] [Indexed: 01/08/2023] Open
Abstract
The relationship between the immune repertoire and the physiopathological status of individuals is essential to apprehend the genesis and the evolution of numerous pathologies. Nevertheless, the methodological approaches to understand these complex interactions are challenging. We performed a study evaluating the diversity harbored by different immune repertoires as a function of their physiopathological status. In this study, we base our analysis on a murine scFv library previously described and representing four different immune repertoires: i) healthy and naïve, ii) healthy and immunized, iii) autoimmune prone and naïve, and iv) autoimmune prone and immunized. This library, 2.6 × 109 in size, is submitted to high throughput sequencing (Next Generation Sequencing, NGS) in order to analyze the gene subgroups encoding for immunoglobulins. A comparative study of the distribution of immunoglobulin gene subgroups present in the four libraries has revealed shifts in the B cell repertoire originating from differences in genetic background and immunological status of mice.
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Affiliation(s)
- Nancy Chaaya
- CNRS UMR 7025, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France.,Sorbonne Universités, Université de Technologie de Compiègne, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France
| | - Melody A Shahsavarian
- CNRS UMR 7025, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France.,Sorbonne Universités, Université de Technologie de Compiègne, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France
| | - Irene Maffucci
- CNRS UMR 7025, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France.,Sorbonne Universités, Université de Technologie de Compiègne, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France
| | - Alain Friboulet
- CNRS UMR 7025, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France.,Sorbonne Universités, Université de Technologie de Compiègne, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France
| | - Bernard Offmann
- Université de Nantes, Unité Fonctionnalité et Ingénierie des Protéines (UFIP), UMR 6286 CNRS, UFR Sciences et Techniques, 2, chemin de la Houssinière, 44322, Nantes, France
| | - Jean-Benoist Léger
- CNRS UMR 7253, Heudiasyc; Université de Technologie de Compiègne. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France.,Sorbonne Universités, Université de Technologie de Compiègne, Heudiasyc. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France
| | - Sylvain Rousseau
- CNRS UMR 7253, Heudiasyc; Université de Technologie de Compiègne. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France.,Sorbonne Universités, Université de Technologie de Compiègne, Heudiasyc. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France
| | - Bérangère Avalle
- CNRS UMR 7025, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France.,Sorbonne Universités, Université de Technologie de Compiègne, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France
| | - Séverine Padiolleau-Lefèvre
- CNRS UMR 7025, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France. .,Sorbonne Universités, Université de Technologie de Compiègne, Génie Enzymatique et Cellulaire. Centre de Recherche de Royallieu. CS 60319, 60203, Compiègne Cedex, France.
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Antibody-Based Protective Immunity against Helminth Infections: Antibody Phage Display Derived Antibodies against BmR1 Antigen. Int J Mol Sci 2017; 18:ijms18112376. [PMID: 29165352 PMCID: PMC5713345 DOI: 10.3390/ijms18112376] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 10/25/2017] [Accepted: 11/02/2017] [Indexed: 12/18/2022] Open
Abstract
Helminth parasite infections are significantly impacting global health, with more than two billion infections worldwide with a high morbidity rate. The complex life cycle of the nematodes has made host immune response studies against these parasites extremely difficult. In this study, we utilized two phage antibody libraries; the immune and naïve library were used to identify single chain fragment variable (scFv) clones against a specific filarial antigen (BmR1). The V-gene analysis of isolated scFv clones will help shed light on preferential VDJ gene segment usage against the filarial BmR1 antigen in healthy and infected states. The immune library showed the usage of both lambda and kappa light chains. However, the naïve library showed preferential use of the lambda family with different amino acid distributions. The binding characteristics of the scFv clones identified from this work were analyzed by immunoassay and immunoaffinity pull down of BmR1. The work highlights the antibody gene usage pattern of a naïve and immune antibody library against the same antigen as well as the robust nature of the enriched antibodies for downstream applications.
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Abstract
SUMMARYPatients with chronic Chagas' Heart Disease (cChHD) develop an antibody response that is suspected to be involved in the cardiac pathogenesis. The response againstTrypanosoma cruziribosomal P proteins is of particular interest, as these antibodies can cross-react with host cardiac receptors causing electrophysiological alterations. To better understand the humoral anti-P response we constructed a single-chain variable fragment library derived from a cChHD patient. The variable heavy and light regions were amplified from bone-marrow RNA and subcloned into the vector pComb3X. The phage library was subsequently panned againstT. cruziribosomal P2βprotein (TcP2β). We obtained 3 different human recombinant antibodies that specifically reacted with TcP2βin ELISA and Western blots. Two of them reacted with the C-terminal region of TcP2β, peptide R13, as the recombinant autoanti-P antibodies from Systemic Lupus Erythematosus (SLE) patients. Interestingly, the third one was specific for TcP2βbut did not recognize R13, confirming the specific nature of the anti-P response in Chagas disease. Neither sequence nor VH usage similarities between Chagas and SLE anti-P autoantibodies were observed. Herein, the first human mAbs against TcP2βhave been obtained and characterized showing that the humoral anti-P response is directed against the parasite and does not include an autoimmune component.
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Apt W. Current and developing therapeutic agents in the treatment of Chagas disease. Drug Des Devel Ther 2010; 4:243-53. [PMID: 20957215 PMCID: PMC2948934 DOI: 10.2147/dddt.s8338] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Indexed: 12/21/2022] Open
Abstract
Chagas disease must be treated in all its stages: acute, indeterminate, chronic, and initial and middle determinant chronic, due to the fact that DNA of the parasite can be demonstrated by PCR in chronic cases, where optical microscopy does not detect parasites. Nifurtimox (NF) and benznidazole (BNZ) are the drugs accepted to treat humans based upon ethical considerations and efficiency. However, both the drugs produce secondary effects in 30% of the cases, and the treatment must be given for at least 30-60 days. Other useful drugs are itraconazole and posaconazole. The latter may be the drug to treat Chagas disease in the future when all the investigations related to it are finished. At present, there is no criterion of cure for chronic cases since in the majority, the serology remains positive, although it may decrease. In acute cases, 70% cure with NF and 75% with BNZ is achieved. In congenital cases, 100% cure is obtained if the treatment is performed during the first year of life. In chronic acquired cases, 20% cure and 50% improvement of the electrocardiographic changes are obtained with itraconazole.
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Affiliation(s)
- Werner Apt
- University of Chile, Faculty of Medicine, Santiago, Chile.
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