Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/28469
Title: Detection of Leishmania infantum in Rhipicephalus sanguineus ticks from Brazil and Italy
Authors: Dantas-Torres, Filipe
Lorusso, Vincenzo
Testini, Gabriella
Paiva-Cavalcanti, Milena de
Figueredo, Luciana A.
Stanneck, Dorothee
Mencke, Norbert
Brandão-Filho, Sinval P.
Alves, Leucio C.
Otranto, Domenico
Affilliation: Università degli Studi di Bari. Dipartimento di Sanità Pubblica e Zootecnia. Valenzano, Bari, Italy.
Università degli Studi di Bari. Dipartimento di Sanità Pubblica e Zootecnia. Valenzano, Bari, Italy.
Università degli Studi di Bari. Dipartimento di Sanità Pubblica e Zootecnia. Valenzano, Bari, Italy.
Fundação Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Imunologia. Recife, PE, Brasil.
Università degli Studi di Bari. Dipartimento di Sanità Pubblica e Zootecnia. Valenzano, Bari, Italy.
Bayer Health Care AG Animal Health Division. Leverkusen, Germany.
Bayer Health Care AG Animal Health Division. Leverkusen, Germany.
Fundação Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Imunologia. Recife, PE, Brasil.
Universidade Federal Rural de Pernambuco. Departamento de Medicina Veterinária. Recife, PE, Brazil.
Università degli Studi di Bari. Dipartimento di Sanità Pubblica e Zootecnia. Valenzano, Bari, Italy.
Abstract: Canine leishmaniosis is a widespread disease caused by Leishmania parasites, which are transmitted by phlebotomine sand flies. However, in some areas where canine leishmaniosis is endemic, but the primary vectors have not been found, ticks have been suspected to play a role in transmitting the infection. Herewith, we report the detection of Leishmania infantum kinetoplast minicircle DNA (kDNA) in ticks collected from naturally infected dogs living in rural areas of Southern Italy (site A) and Northeastern Brazil (site B). Between March and October 2007, ticks were collected from 26 dogs positive to anti-Leishmania antibodies (one from site A and 25 from site B) and either placed directly into vials containing 70% ethanol or maintained alive for identification and subsequent dissection. All the 95 ticks collected were morphologically identified as Rhipicephalus sanguineus. After identification, their genomic DNA was extracted (either individually or in pools) and processed by polymerase chain reaction (PCR) for the detection of L. infantum kDNA. Two pools of salivary glands from ticks (one from five females and other from five males) found on a dog from site A and tested by a conventional PCR were positive. Amplicon sequencing confirmed the identity of the parasite. In addition, nine (12.3%) out of the 73 ticks found on dogs from site B and tested by a real-time PCR were positive, with a low parasite load (less than 1 parasite/ml). The retrieval of L. infantum kDNA in salivary glands of R. sanguineus ticks has been here reported for the first time. Therefore, further studies are needed to assess the competence of ticks as vectors of Leishmania parasites from dog to dog.
Keywords: Salivary Gland
Polymerase Chain Reaction Testing
Conventional Polymerase Chain Reaction
Indirect Fluorescent Antibody Test
Leishmania Parasite
keywords: Testes de Reação em Cadeia da Polimerase
Glândulas Salivares
Reação em Cadeia da Polimerase Convencional
Teste de Anticorpo Fluorescente Indireto
Parasita de Leishmania
DeCS: Anticorpos, protozoários / sangue
Brasil
DNA, cinetoplasto / química
DNA, cinetoplasto / genética
DNA, protozoário / química
DNA, protozoário / genética
Doenças do Cão / parasitologia
Cães
Itália
Leishmania infantum / isolamento & purificação
Reação em Cadeia da Polimerase / métodos
Rhipicephalus sanguineus / parasitologia
Glândulas Salivares / parasitologia
Análise de Sequência, DNA
Issue Date: 2010
Publisher: Springer-Verlag
Citation: DANTAS-TORRES, F. et al. Detection of Leishmania infantum in Rhipicephalus sanguineus ticks from Brazil and Italy. Parasitology Research, v. 106, n. 4, p. 857–860, mar. 2010.
DOI: 10.1007/s00436-010-1722-4
ISSN: 1432-1955
Copyright: restricted access
Appears in Collections:PE - IAM - Artigos de Periódicos

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