Severity of Chagasic Cardiomyopathy Is Associated With Response to a Novel Rapid Diagnostic Test for Trypanosoma cruzi TcII/V/VI
Background: Trypanosoma cruzi causes Chagas disease in the Americas. The outcome of infection ranges from lifelong asymptomatic status to severe disease. Relationship between T. cruzi lineage (TcI-TcVI) infection history and prognosis is not understood. We previously described peptide-based lineage-specific enzyme-linked immunosorbent assay (ELISA) with trypomastigote small surface antigen (TSSA).
Methods: A novel rapid diagnostic test (RDT; Chagas Sero K-SeT) that incorporates a peptide that corresponds to the TSSA II/V/VI common epitope was developed and validated by comparison with ELISA. Patients from Bolivia and Peru, including individuals with varying cardiac pathology, and matched mothers and neonates, were then tested using Chagas Sero K-SeT.
Results: Chagas Sero K-SeT and ELISA results, with a Bolivian subset of cardiac patients, mothers, and neonates, were in accord. In adult chronic infections (n = 121), comparison of severity class A (no evidence of Chagas cardiomyopathy) with class B (electrocardiogram suggestive of Chagas cardiomyopathy) and class C/D (decreased left ventricular ejection fraction; moderate/severe Chagas cardiomyopathy) revealed a statistically significant increase in Chagas Sero K-SeT reactivity with increasing severity (χ2 for trend, 7.39; P = .007). In Peru, Chagas Sero K-SeT detected the sporadic TcII/V/VI infections.
Conclusions: We developed a low cost RDT that can replace ELISA for identification of TSSA II/V/VI immunoglobulin G. Most importantly, we show that response to this RDT is associated with severity of Chagas cardiomyopathy and thus may have prognostic value. Repeated challenge with T. cruzi infection may both exacerbate disease progression and boost the immune response to the TSSApep-II/V/VI epitope.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:67 |
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| Enthalten in: |
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America - 67(2018), 4 vom: 01. Aug., Seite 519-524 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Bhattacharyya, Tapan [VerfasserIn] |
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| Links: |
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| Themen: |
Antigens, Protozoan |
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| Anmerkungen: |
Date Completed 31.10.2019 Date Revised 09.01.2021 published: Print Citation Status MEDLINE |
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| doi: |
10.1093/cid/ciy121 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM280973381 |
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| 245 | 1 | 0 | |a Severity of Chagasic Cardiomyopathy Is Associated With Response to a Novel Rapid Diagnostic Test for Trypanosoma cruzi TcII/V/VI |
| 264 | 1 | |c 2018 | |
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| 500 | |a Date Completed 31.10.2019 | ||
| 500 | |a Date Revised 09.01.2021 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Background: Trypanosoma cruzi causes Chagas disease in the Americas. The outcome of infection ranges from lifelong asymptomatic status to severe disease. Relationship between T. cruzi lineage (TcI-TcVI) infection history and prognosis is not understood. We previously described peptide-based lineage-specific enzyme-linked immunosorbent assay (ELISA) with trypomastigote small surface antigen (TSSA) | ||
| 520 | |a Methods: A novel rapid diagnostic test (RDT; Chagas Sero K-SeT) that incorporates a peptide that corresponds to the TSSA II/V/VI common epitope was developed and validated by comparison with ELISA. Patients from Bolivia and Peru, including individuals with varying cardiac pathology, and matched mothers and neonates, were then tested using Chagas Sero K-SeT | ||
| 520 | |a Results: Chagas Sero K-SeT and ELISA results, with a Bolivian subset of cardiac patients, mothers, and neonates, were in accord. In adult chronic infections (n = 121), comparison of severity class A (no evidence of Chagas cardiomyopathy) with class B (electrocardiogram suggestive of Chagas cardiomyopathy) and class C/D (decreased left ventricular ejection fraction; moderate/severe Chagas cardiomyopathy) revealed a statistically significant increase in Chagas Sero K-SeT reactivity with increasing severity (χ2 for trend, 7.39; P = .007). In Peru, Chagas Sero K-SeT detected the sporadic TcII/V/VI infections | ||
| 520 | |a Conclusions: We developed a low cost RDT that can replace ELISA for identification of TSSA II/V/VI immunoglobulin G. Most importantly, we show that response to this RDT is associated with severity of Chagas cardiomyopathy and thus may have prognostic value. Repeated challenge with T. cruzi infection may both exacerbate disease progression and boost the immune response to the TSSApep-II/V/VI epitope | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, N.I.H., Extramural | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 7 | |a Antigens, Protozoan |2 NLM | |
| 700 | 1 | |a Messenger, Louisa A |e verfasserin |4 aut | |
| 700 | 1 | |a Bern, Caryn |e verfasserin |4 aut | |
| 700 | 1 | |a Mertens, Pascal |e verfasserin |4 aut | |
| 700 | 1 | |a Gilleman, Quentin |e verfasserin |4 aut | |
| 700 | 1 | |a Zeippen, Nicolas |e verfasserin |4 aut | |
| 700 | 1 | |a Bremer Hinckel, Bruno C |e verfasserin |4 aut | |
| 700 | 1 | |a Murphy, Niamh |e verfasserin |4 aut | |
| 700 | 1 | |a Gilman, Robert H |e verfasserin |4 aut | |
| 700 | 1 | |a Miles, Michael A |e verfasserin |4 aut | |
| 700 | 0 | |a Chagas Working Group in Bolivia and Peru |e verfasserin |4 aut | |
| 700 | 1 | |a Flores, Jorge |e investigator |4 oth | |
| 700 | 1 | |a Colanzi, Roni |e investigator |4 oth | |
| 700 | 1 | |a Bozo, Ricardo |e investigator |4 oth | |
| 700 | 1 | |a Galdos, Gerson |e investigator |4 oth | |
| 700 | 1 | |a Verastegui, Manuela |e investigator |4 oth | |
| 700 | 1 | |a Sanchez, Gerardo |e investigator |4 oth | |
| 700 | 1 | |a Okamoto, Emi |e investigator |4 oth | |
| 700 | 1 | |a Sherbuck, Jackie |e investigator |4 oth | |
| 700 | 1 | |a Rendell, Toria |e investigator |4 oth | |
| 700 | 1 | |a Shah, Vishal |e investigator |4 oth | |
| 700 | 1 | |a Jois, Malasa |e investigator |4 oth | |
| 700 | 1 | |a Marti, Diana |e investigator |4 oth | |
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