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Medkour H, Varloud M, Davoust B, Mediannikov O. New Molecular Approach for the Detection of Kinetoplastida Parasites of Medical and Veterinary Interest. Microorganisms 2020; 8:E356. [PMID: 32131458 PMCID: PMC7143920 DOI: 10.3390/microorganisms8030356] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 02/26/2020] [Accepted: 03/01/2020] [Indexed: 01/03/2023] Open
Abstract
Kinetoplastids are protozoa containing a range of ubiquitous free_living species-pathogens of invertebrates, vertebrates and even some plants. Some of them are causative agents of canine vector-borne diseases. Their diagnosis is often missing in a gold standard. Here, we proposed a molecular approach for the diagnosis and study of Kinetoplastida. The TaqMan qPCR assays target the following genes: 24Sa LSU of Kinetoplastida, 28S LSU of Leishmania/ Trypanosoma spp., 5.8S rRNA of Trypanosoma spp., 18S SSU of Leishmania spp., kinetoplast minicircle DNA (kDNA) of L. donovani complex and kDNA of L. infantum, were designed, validated for their sensitivity (Se) and specificity (Sp) in silico and in vitro using a panel of known DNAs. They were then used to screen 369 blood samples (358 dogs, 2 equids, 9 monkeys). In addition, new 28S LSU primer sets are presented to use for Kinetoplastida's identification by PCR/sequencing. All qPCRs showed consistently high analytical sensitivities and reproducibility. They detect approximately 0.01 parasite/ mL blood for the kDNA based- qPCRs and at least a single cell-equivalent of rDNA for the other systems. Based on the sequencing results, after screening, Se and Sp were: 0. 919 and 0.971, 0.853 and 0.979, 1.00 and 0.987, 0.826 and 0.995 for all of Kinetoplastida, Leishmania/ Trypanosoma, Trypanosoma, Leishmania spp. specific qPCRs, respectively. kDNA based qPCRs were more sensitive and specific (Se: 1.00; Sp: 0.997). PCR/sequencing allowed the detection of Kinetoplastids in animal blood samples such as L. infantum, L. guyanensis, T. congolense, T. evansi and Bodo spp. The molecular approach proposed here is useful for epidemiological studies, fundamental research such as screening for new Kinetoplastida species, diagnosis and therapeutic follow-up. In addition, researchers are free to choose the molecular tools adapted to their aims.
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Affiliation(s)
- Hacène Medkour
- IHU Méditerranée Infection - Microbes, Evolution, Phylogeny and Infection (MEΦI), 13385 Marseille CEDEX 05, France; (H.M.); (B.D.)
- UMR Aix-Marseille Université, IRD, APHM -19-21, Bd Jean Moulin, 13385 Marseille CEDEX 05, France
- PADESCA Laboratory, Veterinary Science Institute, University Constantine 1, El Khroub 25100, Algeria
| | | | - Bernard Davoust
- IHU Méditerranée Infection - Microbes, Evolution, Phylogeny and Infection (MEΦI), 13385 Marseille CEDEX 05, France; (H.M.); (B.D.)
- UMR Aix-Marseille Université, IRD, APHM -19-21, Bd Jean Moulin, 13385 Marseille CEDEX 05, France
| | - Oleg Mediannikov
- IHU Méditerranée Infection - Microbes, Evolution, Phylogeny and Infection (MEΦI), 13385 Marseille CEDEX 05, France; (H.M.); (B.D.)
- UMR Aix-Marseille Université, IRD, APHM -19-21, Bd Jean Moulin, 13385 Marseille CEDEX 05, France
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Vioti G, Leonel JAF, Lemes KM, Pereira VF, Ferreira HL, Keid LB, Madureira EH, Soares RM, Benassi JC, Oliveira TMFDS. Molecular detection of Leishmania spp. in cattle from Brazil by means of PCR using internal transcribed spacer 1. ACTA ACUST UNITED AC 2019; 28:303-305. [PMID: 31215604 DOI: 10.1590/s1984-29612019003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 01/22/2019] [Indexed: 11/21/2022]
Abstract
Leishmania spp. are important agents of human and animal leishmaniases that have an important impact on public health. In this study, we aimed to detect the circulation of Leishmania spp. in cattle from a visceral leishmaniasis non-endemic area of the state of São Paulo, Brazil. DNA was extracted from blood samples from 100 heifers in the municipality of Pirassununga and was amplified using primers specific for the first internal transcriber spacer (ITS1), to assess the presence of trypanosomatids. The assays revealed that one sample presented bands of between 300 and 350 base pairs. In GenBank, this sample matched 100% with Leishmania infantum (314 base pairs). The results suggest that cattle can be infected by Leishmania infantum in Brazil.
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Affiliation(s)
- Geovanna Vioti
- Programa de Pós-graduação em Epidemiologia Experimental Aplicada às Zoonoses, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, Pirassununga, SP, Brasil
| | - João Augusto Franco Leonel
- Programa de Pós-graduação em Epidemiologia Experimental Aplicada às Zoonoses, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, Pirassununga, SP, Brasil
| | - Kleber Menegon Lemes
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, Pirassununga, SP, Brasil
| | - Vanessa Figueredo Pereira
- Programa de Pós-graduação em Epidemiologia Experimental Aplicada às Zoonoses, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, Pirassununga, SP, Brasil
| | - Helena Lage Ferreira
- Programa de Pós-graduação em Epidemiologia Experimental Aplicada às Zoonoses, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, Pirassununga, SP, Brasil.,Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo - USP, Pirassununga, SP, Brasil
| | - Lara Borges Keid
- Programa de Pós-graduação em Epidemiologia Experimental Aplicada às Zoonoses, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, Pirassununga, SP, Brasil.,Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo - USP, Pirassununga, SP, Brasil
| | - Ed Hoffman Madureira
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, Pirassununga, SP, Brasil
| | - Rodrigo Martins Soares
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo - USP, Pirassununga, SP, Brasil
| | - Júlia Cristina Benassi
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo - USP, Pirassununga, SP, Brasil
| | - Trícia Maria Ferreira de Sousa Oliveira
- Programa de Pós-graduação em Epidemiologia Experimental Aplicada às Zoonoses, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, Pirassununga, SP, Brasil.,Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo - USP, Pirassununga, SP, Brasil
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Tabraue-Chávez M, Luque-González MA, Marín-Romero A, Sánchez-Martín RM, Escobedo-Araque P, Pernagallo S, Díaz-Mochón JJ. A colorimetric strategy based on dynamic chemistry for direct detection of Trypanosomatid species. Sci Rep 2019; 9:3696. [PMID: 30842455 PMCID: PMC6403333 DOI: 10.1038/s41598-019-39946-0] [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: 06/29/2018] [Accepted: 01/29/2019] [Indexed: 11/15/2022] Open
Abstract
Leishmaniasis and Chagas disease are endemic in many countries, and re-emerging in the developed countries. A rapid and accurate diagnosis is important for early treatment for reducing the duration of infection as well as for preventing further potential health complications. In this work, we have developed a novel colorimetric molecular assay that integrates nucleic acid analysis by dynamic chemistry (ChemNAT) with reverse dot-blot hybridization in an array format for a rapid and easy discrimination of Leishmania major and Trypanosoma cruzi. The assay consists of a singleplex PCR step that amplifies a highly homologous DNA sequence which encodes for the RNA component of the large ribosome subunit. The amplicons of the two different parasites differ between them by single nucleotide variations, known as “Single Nucleotide Fingerprint” (SNF) markers. The SNF markers can be easily identified by naked eye using a novel micro Spin-Tube device "Spin-Tube", as each of them creates a specific spot pattern. Moreover, the direct use of ribosomal RNA without requiring the PCR pre-amplification step is also feasible, further increasing the simplicity of the assay. The molecular assay delivers sensitivity capable of identifying up to 8.7 copies per µL with single mismatch specificity. The Spin-Tube thus represents an innovative solution providing benefits in terms of time, cost, and simplicity, all of which are crucial for the diagnosis of infectious disease in developing countries.
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Affiliation(s)
- Mavys Tabraue-Chávez
- DestiNA Genomica S.L. Parque Tecnológico Ciencias de la Salud (PTS), Avenida de la Innovación 1, Edificio BIC, 18016, Armilla, Granada, Spain
| | - María Angélica Luque-González
- GENYO Centre for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government. PTS Granada - Avenida de la Ilustración, 114- 18016, Granada, Spain.,Department Medicinal and Organic Chemistry, School of Pharmacy, University of Granada, Campus Cartuja s/n, 18071, Granada, Spain
| | - Antonio Marín-Romero
- DestiNA Genomica S.L. Parque Tecnológico Ciencias de la Salud (PTS), Avenida de la Innovación 1, Edificio BIC, 18016, Armilla, Granada, Spain.,GENYO Centre for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government. PTS Granada - Avenida de la Ilustración, 114- 18016, Granada, Spain.,Department Medicinal and Organic Chemistry, School of Pharmacy, University of Granada, Campus Cartuja s/n, 18071, Granada, Spain
| | - Rosario María Sánchez-Martín
- GENYO Centre for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government. PTS Granada - Avenida de la Ilustración, 114- 18016, Granada, Spain.,Department Medicinal and Organic Chemistry, School of Pharmacy, University of Granada, Campus Cartuja s/n, 18071, Granada, Spain
| | - Pablo Escobedo-Araque
- ECsens, CITIC-UGR, Department of Electronics and Computer Technology, University of Granada, Campus Aynadamar, 18071, Granada, Spain
| | - Salvatore Pernagallo
- DestiNA Genomica S.L. Parque Tecnológico Ciencias de la Salud (PTS), Avenida de la Innovación 1, Edificio BIC, 18016, Armilla, Granada, Spain. .,DestiNA Genomics Ltd., 7-11 Melville St, Edinburgh, EH3 7PE, United Kingdom.
| | - Juan José Díaz-Mochón
- DestiNA Genomica S.L. Parque Tecnológico Ciencias de la Salud (PTS), Avenida de la Innovación 1, Edificio BIC, 18016, Armilla, Granada, Spain. .,GENYO Centre for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government. PTS Granada - Avenida de la Ilustración, 114- 18016, Granada, Spain. .,Department Medicinal and Organic Chemistry, School of Pharmacy, University of Granada, Campus Cartuja s/n, 18071, Granada, Spain.
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Identification of Trypanosomatids by detecting Single Nucleotide Fingerprints using DNA analysis by dynamic chemistry with MALDI-ToF. Talanta 2017; 176:299-307. [PMID: 28917755 DOI: 10.1016/j.talanta.2017.07.059] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 07/18/2017] [Accepted: 07/20/2017] [Indexed: 01/09/2023]
Abstract
Protozoan parasites of the Trypanosomatidae family can cause devastating diseases in humans and animals, such as Human African Trypanosomiasis or Sleeping Sickness, Chagas disease and Leishmaniasis. Currently, there are molecular assays for detecting parasitic infections and their post-treatment monitoring based on nucleic acid amplification, but there are still certain limitations which limit the development of assays that can detect and discriminate between parasite infections with a single test. Here, we present the development of a novel molecular assay for the rapid identification of Trypanosomatids, integrating DNA analysis by dynamic chemistry in conjunction with Matrix-Assisted Laser Desorption Ionization - Time-of-Flight Mass Spectrometry (MALDI-ToF). Differentiation of Trypanosoma cruzi, Trypanosoma brucei and Leishmania spp. is now possible using a single reaction tube, and enables rapid identification of Trypanosomatids. The test is based on a singleplex PCR, using a specific primer pair that amplifies a 155 base pair segment of the 28S ribosomal RNA gene, within a conserved homology region of Trypanosomatidae species. Amplified fragments are analysed by dynamic chemistry using two abasic PNA probes and the four reactive nucleobases - containing an aldehyde functional group - with MALDI-ToF to identify unique molecular patterns created by each specie due to their single base differences (Single Nucleotide Fingerprint 'SNF') in this highly homologous region. This novel assay offers the possibility to expand routine diagnostic testing for Trypanosomatids, and monitoring of therapeutic responses to these infectious diseases.
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Molecular identification of Lutzomyia migonei (Diptera: Psychodidae) as a potential vector for Leishmania infantum (Kinetoplastida: Trypanosomatidae). Vet Parasitol 2016; 220:28-32. [DOI: 10.1016/j.vetpar.2016.02.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 12/22/2015] [Accepted: 02/17/2016] [Indexed: 11/19/2022]
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