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Soares RP, Fontes IC, Dutra-Rêgo F, Rugani JN, Moreira POL, da Matta VLR, Flores GVA, Pacheco CMS, de Andrade AJ, da Costa-Ribeiro MCV, Shaw JJ, Laurenti MD. Unveiling the Enigmatic nature of six neglected Amazonian Leishmania (Viannia) species using the hamster model: Virulence, Histopathology and prospection of LRV1. PLoS Negl Trop Dis 2024; 18:e0012333. [PMID: 39121159 PMCID: PMC11315283 DOI: 10.1371/journal.pntd.0012333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 06/28/2024] [Indexed: 08/11/2024] Open
Abstract
American tegumentary leishmaniasis (ATL) is highly endemic in the Amazon basin and occurs in all South American countries, except Chile and Uruguay. Most Brazilian ATL cases are due to Leishmania (Viannia) braziliensis, however other neglected Amazonian species are being increasingly reported. They belong to the subgenus L. (Viannia) and information on suitable models to understand immunopathology are scarce. Here, we explored the use of the golden hamster Mesocricetus auratus and its macrophages as a model for L. (Viannia) species. We also studied the interaction of parasite glycoconjugates (LPGs and GIPLs) in murine macrophages. The following strains were used: L. (V.) braziliensis (MHOM/BR/2001/BA788), L. (V.) guyanensis (MHOM/BR/85/M9945), L. (V.) shawi (MHOM/BR/96/M15789), L. (V.) lindenbergi (MHOM/BR/98/M15733) and L. (V.) naiffi (MDAS/BR/79/M5533). In vivo infections were initiated by injecting parasites into the footpad and were followed up at 20- and 40-days PI. Parasites were mixed with salivary gland extract (SGE) from wild-captured Nyssomyia neivai prior to in vivo infections. Animals were euthanized for histopathological evaluation of the footpads, spleen, and liver. The parasite burden was evaluated in the skin and draining lymph nodes. In vitro infections used resident peritoneal macrophages and THP-1 monocytes infected with all species using a MOI (1:10). For biochemical studies, glycoconjugates (LPGs and GIPLs) were extracted, purified, and biochemically characterized using fluorophore-assisted carbohydrate electrophoresis (FACE). They were functionally evaluated after incubation with macrophages from C57BL/6 mice and knockouts (TLR2-/- and TLR4-/-) for nitric oxide (NO) and cytokine/chemokine production. All species, except L. (V.) guyanensis, failed to generate evident macroscopic lesions 40 days PI. The L. (V.) guyanensis lesions were swollen but did not ulcerate and microscopically were characterized by an intense inflammatory exudate. Despite the fact the other species did not produce visible skin lesions there was no or mild pro-inflammatory infiltration at the inoculation site and parasites survived in the hamster skin/lymph nodes and even visceralized. Although none of the species caused severe disease in the hamster, they differentially infected peritoneal macrophages in vitro. LPGs and GIPLs were able to differentially trigger NO and cytokine production via TLR2/TLR4 and TLR4, respectively. The presence of a sidechain in L. (V.) lainsoni LPG (type II) may be responsible for its higher proinflammatory activity. After Principal Component analyses using all phenotypic features, the clustering of L. (V.) lainsoni was separated from all the other L. (Viannia) species. We conclude that M. auratus was a suitable in vivo model for at least four dermotropic L. (Viannia) species. However, in vitro studies using peritoneal cells are a suitable alternative for understanding interactions of the six L. (Viannia) species used here. LRV1 presence was found in L. (V.) guyanensis and L. (V.) shawi with no apparent correlation with virulence in vitro and in vivo. Finally, parasite glycoconjugates were able to functionally trigger various innate immune responses in murine macrophages via TLRs consistent with their inflammatory profile in vivo.
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Affiliation(s)
- Rodrigo Pedro Soares
- Grupo Biotecnologia Aplicada ao Estudo de Patógenos (BAP), Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ), Belo Horizonte, Minas Gerais, Brazil
- Laboratório de Patologia das Moléstias Infecciosas, Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Igor Campos Fontes
- Grupo Biotecnologia Aplicada ao Estudo de Patógenos (BAP), Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ), Belo Horizonte, Minas Gerais, Brazil
| | - Felipe Dutra-Rêgo
- Grupo Biotecnologia Aplicada ao Estudo de Patógenos (BAP), Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ), Belo Horizonte, Minas Gerais, Brazil
| | - Jeronimo Nunes Rugani
- Grupo Biotecnologia Aplicada ao Estudo de Patógenos (BAP), Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ), Belo Horizonte, Minas Gerais, Brazil
| | - Paulo Otávio L. Moreira
- Grupo Biotecnologia Aplicada ao Estudo de Patógenos (BAP), Instituto René Rachou, Fundação Oswaldo Cruz (FIOCRUZ), Belo Horizonte, Minas Gerais, Brazil
| | - Vânia Lúcia Ribeiro da Matta
- Laboratório de Patologia das Moléstias Infecciosas, Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Gabriela Venícia Araujo Flores
- Laboratório de Patologia das Moléstias Infecciosas, Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Carmen Maria Sandoval Pacheco
- Laboratório de Patologia das Moléstias Infecciosas, Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Andrey José de Andrade
- Laboratório de Parasitologia Molecular, Departamento de Patologia Básica, Setor de Ciências Biológicas, Universidade Federal do Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Magda Clara Vieira da Costa-Ribeiro
- Laboratório de Parasitologia Molecular, Departamento de Patologia Básica, Setor de Ciências Biológicas, Universidade Federal do Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Jeffrey Jon Shaw
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Márcia Dalastra Laurenti
- Laboratório de Patologia das Moléstias Infecciosas, Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, São Paulo, Brazil
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Ibañez-Escribano A, Gomez-Muñoz MT, Mateo M, Fonseca-Berzal C, Gomez-Lucia E, Perez RG, Alunda JM, Carrion J. Microbial Matryoshka: Addressing the Relationship between Pathogenic Flagellated Protozoans and Their RNA Viral Endosymbionts (Family Totiviridae). Vet Sci 2024; 11:321. [PMID: 39058005 PMCID: PMC11281412 DOI: 10.3390/vetsci11070321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/12/2024] [Accepted: 07/14/2024] [Indexed: 07/28/2024] Open
Abstract
Three genera of viruses of the family Totiviridae establish endosymbiotic associations with flagellated protozoa responsible for parasitic diseases of great impact in the context of One Health. Giardiavirus, Trichomonasvirus, and Leishmaniavirus infect the protozoa Giardia sp., Trichomonas vaginalis, and Leishmania sp., respectively. In the present work, we review the characteristics of the endosymbiotic relationships established, the advantages, and the consequences caused in mammalian hosts. Among the common characteristics of these double-stranded RNA viruses are that they do not integrate into the host genome, do not follow a lytic cycle, and do not cause cytopathic effects. However, in cases of endosymbiosis between Leishmaniavirus and Leishmania species from the Americas, and between Trichomonasvirus and Trichomonas vaginalis, it seems that it can alter their virulence (degree of pathogenicity). In a mammalian host, due to TLR3 activation of immune cells upon the recognition of viral RNA, uncontrolled inflammatory signaling responses are triggered, increasing pathological damage and the risk of failure of conventional standard treatment. Endosymbiosis with Giardiavirus can cause the loss of intestinal adherence of the protozoan, resulting in a benign disease. The current knowledge about viruses infecting flagellated protozoans is still fragmentary, and more research is required to unravel the intricacies of this three-way relationship. We need to develop early and effective diagnostic methods for further development in the field of translational medicine. Taking advantage of promising biotechnological advances, the aim is to develop ad hoc therapeutic strategies that focus not only on the disease-causing protozoan but also on the virus.
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Affiliation(s)
- Alexandra Ibañez-Escribano
- Department of Microbiology and Parasitology, Faculty of Pharmacy, Complutense University of Madrid, 28040 Madrid, Spain; (A.I.-E.); (M.M.); (C.F.-B.)
| | - Maria Teresa Gomez-Muñoz
- ICPVet Research Group, Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (M.T.G.-M.); (R.G.P.); (J.M.A.)
- Research Institute Hospital 12 de Octubre, 28041 Madrid, Spain
| | - Marta Mateo
- Department of Microbiology and Parasitology, Faculty of Pharmacy, Complutense University of Madrid, 28040 Madrid, Spain; (A.I.-E.); (M.M.); (C.F.-B.)
- ICPVet Research Group, Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (M.T.G.-M.); (R.G.P.); (J.M.A.)
- Research Institute Hospital 12 de Octubre, 28041 Madrid, Spain
| | - Cristina Fonseca-Berzal
- Department of Microbiology and Parasitology, Faculty of Pharmacy, Complutense University of Madrid, 28040 Madrid, Spain; (A.I.-E.); (M.M.); (C.F.-B.)
| | - Esperanza Gomez-Lucia
- Animal Viruses Research Group, Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain;
| | - Raquel Garcia Perez
- ICPVet Research Group, Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (M.T.G.-M.); (R.G.P.); (J.M.A.)
| | - Jose M. Alunda
- ICPVet Research Group, Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (M.T.G.-M.); (R.G.P.); (J.M.A.)
- Research Institute Hospital 12 de Octubre, 28041 Madrid, Spain
| | - Javier Carrion
- ICPVet Research Group, Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (M.T.G.-M.); (R.G.P.); (J.M.A.)
- Research Institute Hospital 12 de Octubre, 28041 Madrid, Spain
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3
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Bonilla AA, Pineda V, Calzada JE, Saldaña A, Laurenti MD, Goya S, Abrego L, González K. Epidemiology and Genetic Characterization of Leishmania RNA Virus in Leishmania ( Viannia) spp. Isolates from Cutaneous Leishmaniasis Endemic Areas in Panama. Microorganisms 2024; 12:1317. [PMID: 39065086 PMCID: PMC11279101 DOI: 10.3390/microorganisms12071317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/29/2024] [Accepted: 06/14/2024] [Indexed: 07/28/2024] Open
Abstract
Leishmania (Viannia) spp. can harbor a double-stranded RNA virus known as Leishmania RNA virus 1 (LRV-1), whose presence has been reported in nine countries across the Americas and seven Leishmania species. Here, we studied 100 Leishmania (Viannia) isolates from patients with cutaneous leishmaniasis collected from different endemic areas in Panama from 2016 to 2022. We identified L. (V.) panamensis, L. (V.) guyanensis, L. (V.) braziliensis/guyanensis hybrid, and L. (V.) panamensis sp.1. (genetic variant). LRV-1 was detected by RT-PCR in 9% of L. (Viannia) isolates (eight cases in L. (V.) panamensis, and one in L. (V.) guyanensis). Phylogenetic analysis based on sequencing data classified all LRV-1 isolates within genotype A, suggesting that LRV phylogenetic proximity is closely aligned with geographical distribution or to the phylogenetic proximity of the Leishmania host in the case of the L. (V.) panamensis and L. (V.) guyanensis in Panama.
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Affiliation(s)
- Armando Assair Bonilla
- Programa de Maestría en Ciencias Parasitológicas, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá, Panama 3366, Panama;
| | - Vanessa Pineda
- Departamento de Investigación en Parasitología, Instituto de Conmemorativo Gorgas de Estudios de la Salud, Panama 0816-02593, Panama; (V.P.); (J.E.C.)
| | - José Eduardo Calzada
- Departamento de Investigación en Parasitología, Instituto de Conmemorativo Gorgas de Estudios de la Salud, Panama 0816-02593, Panama; (V.P.); (J.E.C.)
- Facultad de Medicina Veterinaria, Universidad de Panamá, Panama 3366, Panama
| | - Azael Saldaña
- Centro de Investigación y Diagnóstico de Enfermedades Parasitarias (CIDEP), Facultad de Medicina, Universidad de Panamá, Panama 3366, Panama;
| | - Marcia Dalastra Laurenti
- Laboratório de Patologia de Moléstias Infecciosas, Faculdade de Medicina, Universidade de São Paulo, São Paulo 05508-270, SP, Brazil;
| | - Stephanie Goya
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA;
| | - Leyda Abrego
- Departamento de Investigación en Virología y Biotecnología, Instituto Conmemorativo Gorgas de Estudios de la Salud, Panama 0816-02593, Panama
- Departamento de Microbiología y Parasitología, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá, Panama 3366, Panama
| | - Kadir González
- Departamento de Investigación en Parasitología, Instituto de Conmemorativo Gorgas de Estudios de la Salud, Panama 0816-02593, Panama; (V.P.); (J.E.C.)
- Departamento de Microbiología Humana, Facultad de Medicina, Universidad de Panamá, Panama 3366, Panama
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Felipin KP, Paloschi MV, Silva MDS, Ikenohuchi YJ, Santana HM, Setúbal SDS, Rego CMA, Lopes JA, Boeno CN, Serrath SN, De Medeiros EHRT, Pimentel IF, Oliveira AER, Cupolillo E, Cantanhêde LM, Ferreira RDGM, Zuliani JP. Transcriptomics analysis highlights potential ways in human pathogenesis in Leishmania braziliensis infected with the viral endosymbiont LRV1. PLoS Negl Trop Dis 2024; 18:e0012126. [PMID: 38743668 PMCID: PMC11093365 DOI: 10.1371/journal.pntd.0012126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 04/01/2024] [Indexed: 05/16/2024] Open
Abstract
The parasite Leishmania (Viannia) braziliensis is widely distributed in Brazil and is one of the main species associated with human cases of different forms of tegumentary leishmaniasis (TL) such as cutaneous leishmaniasis (CL) and mucosal leishmaniasis (ML). The mechanisms underlying the pathogenesis of TL are still not fully understood, but it is known that factors related to the host and the parasite act in a synergistic and relevant way to direct the response to the infection. In the host, macrophages have a central connection with the parasite and play a fundamental role in the defense of the organism due to their ability to destroy intracellular parasites and present antigens. In the parasite, some intrinsic factors related to the species or even the strain analyzed are fundamental for the outcome of the disease. One of them is the presence of Leishmania RNA Virus 1 (LRV1), an endosymbiont virus that parasitizes some species of Leishmania that triggers a cascade of signals leading to a more severe TL phenotype, such as ML. One of the strategies for understanding factors associated with the immune response generated after Leishmania/host interaction is through the analysis of molecular patterns after infection. Thus, the gene expression profile in human monocyte-derived macrophages obtained from healthy donors infected in vitro with L. braziliensis positive (LbLRV1+) and negative (LbLRV1-) for LRV1 was evaluated. For this, the microarray assay was used and 162 differentially expressed genes were identified in the comparison LbLRV1+ vs. LbLRV1-, 126 upregulated genes for the type I and II interferons (IFN) signaling pathway, oligoadenylate synthase OAS/RNAse L, non-genomic actions of vitamin D3 and RIG-I type receptors, and 36 down-regulated. The top 10 downregulated genes along with the top 10 upregulated genes were considered for analysis. Type I interferon (IFNI)- and OAS-related pathways results were validated by RT-qPCR and Th1/Th2/Th17 cytokines were analyzed by Cytometric Bead Array (CBA) and enzyme-linked immunosorbent assay (ELISA). The microarray results validated by RT-qPCR showed differential expression of genes related to IFNI-mediated pathways with overexpression of different genes in cells infected with LbLRV1+ compared to LbLRV1- and to the control. No significant differences were found in cytokine levels between LbLRV1+ vs. LbLRV1- and control. The data suggest the activation of gene signaling pathways associated with the presence of LRV1 has not yet been reported so far. This study demonstrates, for the first time, the activation of the OAS/RNase L signaling pathway and the non-genomic actions of vitamin D3 when comparing infections with LbLRV1+ versus LbLRV1- and the control. This finding emphasizes the role of LRV1 in directing the host's immune response after infection, underlining the importance of identifying LRV1 in patients with TL to assess disease progression.
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Affiliation(s)
- Kátia Paula Felipin
- Laboratório de Epidemiologia Genética, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
| | - Mauro Valentino Paloschi
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
| | - Milena Daniela Souza Silva
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
| | - Yoda Janaina Ikenohuchi
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
| | - Hallison Mota Santana
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
| | - Sulamita da Silva Setúbal
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
| | - Cristina Matiele Alves Rego
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
| | - Jéssica Amaral Lopes
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
| | - Charles Nunes Boeno
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
| | - Suzanne Nery Serrath
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
| | | | - Iasmin Ferreira Pimentel
- Laboratório de Epidemiologia Genética, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
| | | | - Elisa Cupolillo
- Laboratório de Pesquisa em Leishmanioses, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
- Instituto Nacional de Epidemiologia da Amazônia Ocidental, EpiAmO, Porto Velho, Brazil
| | - Lilian Motta Cantanhêde
- Laboratório de Pesquisa em Leishmanioses, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
- Instituto Nacional de Epidemiologia da Amazônia Ocidental, EpiAmO, Porto Velho, Brazil
| | - Ricardo de Godoi Matos Ferreira
- Laboratório de Epidemiologia Genética, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
- Laboratório de Pesquisa em Leishmanioses, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
- Instituto Nacional de Epidemiologia da Amazônia Ocidental, EpiAmO, Porto Velho, Brazil
| | - Juliana Pavan Zuliani
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho, Brazil
- Departamento de Medicina, Universidade Federal de Rondônia, UNIR, Porto Velho, Brazil
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Kariyawasam R, Lau R, Valencia BM, Llanos-Cuentas A, Boggild AK. Novel detection of Leishmania RNA virus-1 (LRV-1) in clinical isolates of Leishmania Viannia panamensis. Parasitology 2024; 151:151-156. [PMID: 38031433 PMCID: PMC10941039 DOI: 10.1017/s0031182023001221] [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: 06/05/2023] [Revised: 11/16/2023] [Accepted: 11/26/2023] [Indexed: 12/01/2023]
Abstract
American tegumentary leishmaniasis comprises a discrete set of clinical presentations endemic to Latin America. Leishmania RNA virus-1 (LRV-1) is a double-stranded RNA virus identified in 20–25% of the Leishmania Viannia braziliensis and L. V. guyanensis, however not in L. V. panamensis. This is the first report of LRV-1 in L. V. panamensis and its associations with clinical phenotypes of ATL. Unique surplus discard clinical isolates of L. V. panamensis were identified from the Public Health Ontario Laboratory (PHOL) and the Leishmania Clinic of the Instituto de Medicina Tropical ‘Alexander von Humboldt’ between 2012 and 2019 and screened for LRV-1 by real-time polymerase chain reaction. Patient isolates were stratified according to clinical phenotype. Of 30 patients with L. V. panamensis, 14 (47%) and 16 (53%) patients had severe and non-severe ATL, respectively. Five (36%) of 14 severe cases and 2 (12%) of 16 non-severe cases were positive for LRV-1, respectively. No differences in sex were observed for clinical phenotype and LRV-1 status. Although an association between LRV-1 status and clinical phenotype was not demonstrated, this is the first description of the novel detection of LRV-1 in L. V. panamensis, a species that has been documented predominantly in Central America.
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Affiliation(s)
- Ruwandi Kariyawasam
- Department of Laboratory Medicine & Pathology, University of Alberta, Edmonton, AB T6G 2R3, Canada
- Alberta Precision Laboratories-Public Health, Edmonton, AB T6G 2J2, Canada
| | - Rachel Lau
- Public Health Ontario Laboratory, Toronto, ON M5G 1M1 Canada
| | - Braulio M. Valencia
- Instituto de Medicina Tropical ‘Alejandro von Humboldt’, Lima, Peru
- Kirby Institute, University of New South Wales, Sydney, Australia
| | | | - Andrea K. Boggild
- Department of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Tropical Disease Unit, Toronto General Hospital, Toronto, ON M5G 2C4, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
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Heeren S, Maes I, Sanders M, Lye LF, Adaui V, Arevalo J, Llanos-Cuentas A, Garcia L, Lemey P, Beverley SM, Cotton JA, Dujardin JC, Van den Broeck F. Diversity and dissemination of viruses in pathogenic protozoa. Nat Commun 2023; 14:8343. [PMID: 38102141 PMCID: PMC10724245 DOI: 10.1038/s41467-023-44085-2] [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: 05/03/2023] [Accepted: 11/29/2023] [Indexed: 12/17/2023] Open
Abstract
Viruses are the most abundant biological entities on Earth and play a significant role in the evolution of many organisms and ecosystems. In pathogenic protozoa, the presence of viruses has been linked to an increased risk of treatment failure and severe clinical outcome. Here, we studied the molecular epidemiology of the zoonotic disease cutaneous leishmaniasis in Peru and Bolivia through a joint evolutionary analysis of Leishmania braziliensis and their dsRNA Leishmania virus 1. We show that parasite populations circulate in tropical rainforests and are associated with single viral lineages that appear in low prevalence. In contrast, groups of hybrid parasites are geographically and ecologically more dispersed and associated with an increased prevalence, diversity and spread of viruses. Our results suggest that parasite gene flow and hybridization increased the frequency of parasite-virus symbioses, a process that may change the epidemiology of leishmaniasis in the region.
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Affiliation(s)
- Senne Heeren
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Leuven, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Ilse Maes
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | | | - Lon-Fye Lye
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Vanessa Adaui
- Laboratory of Biomolecules, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Jorge Arevalo
- Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Alejandro Llanos-Cuentas
- Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Lineth Garcia
- Instituto de Investigación Biomédicas e Investigación Social, Universidad Mayor de San Simon, Cochabamba, Bolivia
| | - Philippe Lemey
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Stephen M Beverley
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA
| | - James A Cotton
- Welcome Sanger Institute, Hinxton, UK
- School of Biodiversity, One Health and Comparative Medicine, Wellcome Centre for Integrative Parasitology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Jean-Claude Dujardin
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.
| | - Frederik Van den Broeck
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Leuven, Belgium.
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7
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Santana MCDO, Chourabi K, Cantanhêde LM, Cupolillo E. Exploring Host-Specificity: Untangling the Relationship between Leishmania ( Viannia) Species and Its Endosymbiont Leishmania RNA Virus 1. Microorganisms 2023; 11:2295. [PMID: 37764139 PMCID: PMC10535429 DOI: 10.3390/microorganisms11092295] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/03/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
A relevant aspect in the epidemiology of Tegumentary Leishmaniasis (TL) are the Leishmania parasites carrying a viral endosymbiont, Leishmania RNA Virus 1 (LRV1), a dsRNA virus. Leishmania parasites carrying LRV1 are prone to causing more severe TL symptoms, increasing the likelihood of unfavorable clinical outcomes. LRV1 has been observed in the cultured strains of five L. (Viannia) species, and host specificity was suggested when studying the LRV1 from L. braziliensis and L. guyanensis strains. The coevolution hypothesis of LRV1 and Leishmania was based on phylogenetic analyses, implying an association between LRV1 genotypes, Leishmania species, and their geographic origins. This study aimed to investigate LRV1 specificity relative to Leishmania (Viannia) species hosts by analyzing LRV1 from L. (Viannia) species. To this end, LRV1 was screened in L. (Viannia) species other than L. braziliensis or L. guyanensis, and it was detected in 11 out of 15 L. naiffi and two out of four L. shawi. Phylogenetic analyses based on partial LRV1 genomic sequencing supported the hypothesis of host specificity, as LRV1 clustered according to their respective Leishmania species' hosts. These findings underscore the importance of investigating Leishmania and LRV1 coevolution and its impact on Leishmania (Viannia) species dispersion and pathogenesis in the American Continent.
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Affiliation(s)
- Mayara Cristhine de Oliveira Santana
- Leishmaniasis Research Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro 21040360, Brazil; (M.C.d.O.S.); (L.M.C.)
- Instituto Nacional de Ciência e Tecnologia de Epidemiologia da Amazônia Ocidental, INCT EpiAmO, Porto Velho 76812100, Brazil
| | - Khaled Chourabi
- Leishmaniasis Research Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro 21040360, Brazil; (M.C.d.O.S.); (L.M.C.)
- Instituto Nacional de Ciência e Tecnologia de Epidemiologia da Amazônia Ocidental, INCT EpiAmO, Porto Velho 76812100, Brazil
| | - Lilian Motta Cantanhêde
- Leishmaniasis Research Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro 21040360, Brazil; (M.C.d.O.S.); (L.M.C.)
- Instituto Nacional de Ciência e Tecnologia de Epidemiologia da Amazônia Ocidental, INCT EpiAmO, Porto Velho 76812100, Brazil
| | - Elisa Cupolillo
- Leishmaniasis Research Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro 21040360, Brazil; (M.C.d.O.S.); (L.M.C.)
- Instituto Nacional de Ciência e Tecnologia de Epidemiologia da Amazônia Ocidental, INCT EpiAmO, Porto Velho 76812100, Brazil
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Heeren S, Maes I, Sanders M, Lye LF, Arevalo J, Llanos-Cuentas A, Garcia L, Lemey P, Beverley SM, Cotton JA, Dujardin JC, den Broeck FV. Parasite hybridization promotes spreading of endosymbiotic viruses. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.24.534103. [PMID: 36993291 PMCID: PMC10055345 DOI: 10.1101/2023.03.24.534103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Viruses are the most abundant biological entities on Earth and play a significant role in the evolution of many organisms and ecosystems. In pathogenic protozoa, the presence of endosymbiotic viruses has been linked to an increased risk of treatment failure and severe clinical outcome. Here, we studied the molecular epidemiology of the zoonotic disease cutaneous leishmaniasis in Peru and Bolivia through a joint evolutionary analysis of Leishmania braziliensis parasites and their endosymbiotic Leishmania RNA virus. We show that parasite populations circulate in isolated pockets of suitable habitat and are associated with single viral lineages that appear in low prevalence. In contrast, groups of hybrid parasites were geographically and ecologically dispersed, and commonly infected from a pool of genetically diverse viruses. Our results suggest that parasite hybridization, likely due to increased human migration and ecological perturbations, increased the frequency of endosymbiotic interactions known to play a key role in disease severity.
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Affiliation(s)
- Senne Heeren
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Leuven, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Ilse Maes
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Mandy Sanders
- Parasite Genomics Group, Welcome Sanger Institute, Hinxton, United Kingdom
| | - Lon-Fye Lye
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, United States
| | - Jorge Arevalo
- Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Alejandro Llanos-Cuentas
- Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Lineth Garcia
- Instituto de Investigación Biomédicas e Investigación Social, Universidad Mayor de San Simon, Cochabamba, Bolivia
| | - Philippe Lemey
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Stephen M Beverley
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, United States
| | - James A Cotton
- Parasite Genomics Group, Welcome Sanger Institute, Hinxton, United Kingdom
| | - Jean-Claude Dujardin
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Frederik Van den Broeck
- Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Leuven, Belgium
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9
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Ferreira BA, Coser EM, Saborito C, Yamashiro-Kanashiro EH, Lindoso JAL, Coelho AC. In vitro miltefosine and amphotericin B susceptibility of strains and clinical isolates of Leishmania species endemic in Brazil that cause tegumentary leishmaniasis. Exp Parasitol 2023; 246:108462. [PMID: 36642298 DOI: 10.1016/j.exppara.2023.108462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/14/2023]
Abstract
Tegumentary leishmaniasis encompasses a spectrum of clinical manifestations caused by the parasitic protozoa of the genus Leishmania. In Brazil, there are at least seven Leishmania species that are endemic and responsible for this set of clinical manifestations of the disease. Current treatment is limited to a restricted number of drugs that in general have several drawbacks including parenteral use, toxicity, and severe side effects. Amphotericin B is considered a second-line drug for tegumentary leishmaniasis in Brazil, while miltefosine was recently approved for clinical use in the treatment of this disease. In this study, we investigated the in vitro susceptibility of Leishmania strains representative of the species endemic to Brazil, as well as a panel of thirteen clinical isolates of tegumentary leishmaniasis, to both amphotericin B and miltefosine. A moderate variation in the susceptibility to both drugs was found, where the EC50 values varied from 11.43 to 52.67 μM for miltefosine and from 12.89 to 62.36 nM for amphotericin B in promastigotes, while for the intracellular amastigotes, values ranged from 1.08 to 9.60 μM and from 1.69 to 22.71 nM for miltefosine and amphotericin B respectively. Furthermore, the clinical isolates and strains of the subgenus Viannia were evaluated for the presence of Leishmania RNA virus 1 (LRV1), as this is an important factor associated with disease severity and treatment outcome. These findings provide a preclinical dataset of the activity of these drugs against the causative species of tegumentary leishmaniasis in Brazil.
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Affiliation(s)
- Bianca A Ferreira
- Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Elizabeth M Coser
- Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Cristiele Saborito
- Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
| | - Edite H Yamashiro-Kanashiro
- Laboratório de Soroepidemiologia e Imunobiologia, Instituto de Medicina Tropical de São Paulo, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil; Laboratório de Imunologia (LIM 48), Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - José Angelo L Lindoso
- Laboratório de Protozoologia, Instituto de Medicina Tropical de São Paulo, Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil; Instituto de Infectologia Emilio Ribas, São Paulo, Brazil
| | - Adriano C Coelho
- Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil.
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Rosales-Chilama M, Y. Oviedo M, K. Quintero Y, L. Fernández O, Gómez MA. Leishmania RNA Virus Is Not Detected in All Species of the Leishmania Viannia Subgenus: The Case of L. (V.) panamensis in Colombia. Am J Trop Med Hyg 2023; 108:555-560. [PMID: 36716739 PMCID: PMC9978567 DOI: 10.4269/ajtmh.22-0551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2002] [Accepted: 11/21/2022] [Indexed: 01/31/2023] Open
Abstract
The endosymbiotic Leishmania RNA virus 1 (LRV1) has been associated with severity and clinical manifestations of American tegumentary leishmaniasis caused by species of the Leishmania (Viannia) subgenus. Between and within Leishmania species, and among endemic countries, the prevalence of LRV is highly variable. The LRV virus has not been detected in L. (V.) panamensis, the second-most prevalent species in Central America and Colombia. However, no systematic screening of LRV has been conducted in L. (V.) panamensis, and thus it is still controversial whether this virus is truly absent from the species. We sought to determine the prevalence of LRV1 in L. (V.) panamensis clinical strains isolated from patients with cutaneous leishmaniasis (CL), from different geographic areas of Colombia. We analyzed 219 clinical strains; 78% were L. (V.) panamensis, 18% were L. (V.) braziliensis, and 4% were L. (V.) guyanensis. Screening for LRV1 was performed by quantitative reverse transcription-polymerase chain reaction. The LRV1 was detected in 18% (7 of 40) of L. (V) braziliensis strains, and was not detected in any of the L. (V.) guyanensis or L. (V.) panamensis strains. The LRV1-positive L. (V). braziliensis strains came from the Amazon Basin. Of the seven LRV1-positive strains, two were isolated from patients with mucocutaneous leishmaniasis, and the remaining from patients with CL. Our results confirm the absence of LRV1 in L. (V.) panamensis in Colombia.
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Affiliation(s)
- Mariana Rosales-Chilama
- Centro Internacional de Entrenamiento e Investigaciones Médicas-CIDEIM, Cali, Colombia
- Universidad Icesi, Cali, Colombia
| | - Monica Y. Oviedo
- Centro Internacional de Entrenamiento e Investigaciones Médicas-CIDEIM, Cali, Colombia
| | - Yury K. Quintero
- Centro Internacional de Entrenamiento e Investigaciones Médicas-CIDEIM, Cali, Colombia
- Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Olga L. Fernández
- Centro Internacional de Entrenamiento e Investigaciones Médicas-CIDEIM, Cali, Colombia
- Universidad Icesi, Cali, Colombia
| | - María Adelaida Gómez
- Centro Internacional de Entrenamiento e Investigaciones Médicas-CIDEIM, Cali, Colombia
- Universidad Icesi, Cali, Colombia
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11
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Mata-Somarribas C, Quesada-López J, Matamoros MF, Cervantes-Gómez C, Mejía A, Chacón K, Bendig I, Campos R, Quesada-Morera R, Cantanhêde LM, Pereira LDOR, Cupolillo E. Raising the suspicion of a non-autochthonous infection: identification of Leishmania guyanensis from Costa Rica exhibits a Leishmaniavirus related to Brazilian north-east and French Guiana viral genotypes. Mem Inst Oswaldo Cruz 2023; 117:e220162. [PMID: 36651455 PMCID: PMC9870268 DOI: 10.1590/0074-02760220162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 11/17/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Costa Rica has a history of neglecting prevention, control and research of leishmaniasis, including limited understanding on Leishmania species causing human disease across the country and a complete lack of knowledge on the Leishmania RNA virus, described as a factor linked to the worsening and metastasis of leishmanial lesions. OBJECTIVES The aim of this work was to describe a case of cutaneous leishmaniasis by Leishmania (Viannia) guyanensis, bearing infection with Leishmaniavirus 1 (LRV1) in Costa Rica, raising the suspicion of imported parasites in the region. METHODS The Leishmania strain was previously identified by routine hsp70 polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in Costa Rica and subsequently characterised by isoenzyme electrophoresis and Sanger sequencing in Brazil. Screening for LRV1 was conducted with a dual RT-PCR approach and sequencing of the fragment obtained. FINDINGS Since 2016 Costa Rica performs Leishmania isolation and typing as part of its epidemiological surveillance activities. Amongst 113 strains typed until 2019, only one was characterised as a L. (V.) guyanensis, corresponding to the first confirmed report of this species in the country. Interestingly, the same strain tested positive for LRV1. Sequencing of the viral orf1 and 2, clustered this sample with other LRV1 genotypes of South American origin, from the Northeast of Brazil and French Guiana. MAIN CONCLUSION The unique characteristics of this finding raised the suspicion that it was not an autochthonous strain. Notwithstanding its presumed origin, this report points to the occurrence of said endosymbiont in Central American Leishmania strains. The possibility of its local dispersion represents one more challenge faced by regional health authorities in preventing and controlling leishmaniasis.
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Affiliation(s)
- Carlos Mata-Somarribas
- Instituto Costarricense de Investigación y Enseñanza en Nutrición y Salud, Centro Nacional de Referencia de Parasitología, Cartago, Costa Rica
| | - José Quesada-López
- Caja Costarricense de Seguro Social, Área de Salud Santa Rosa de Pocosol, Alajuela, Costa Rica
| | - María F Matamoros
- Caja Costarricense de Seguro Social, Hospital Escalante Pradilla, San José, Costa Rica
| | | | - Annia Mejía
- Caja Costarricense de Seguro Social, Área de Salud Florencia, Alajuela, Costa Rica
| | - Karen Chacón
- Caja Costarricense de Seguro Social, Hospital Ciudad Neily, Puntarenas, Costa Rica
| | - Ivannia Bendig
- Caja Costarricense de Seguro Social, Hospital de Guápiles, Limón, Costa Rica
| | - Roger Campos
- Caja Costarricense de Seguro Social, Área de Salud Matina, Limón, Costa Rica
| | | | - Lilian Motta Cantanhêde
- Fiocruz-Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Pesquisa em Leishmanioses, Rio de Janeiro, RJ, Brasil
| | - Luiza de Oliveira R Pereira
- Fiocruz-Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Pesquisa em Leishmanioses, Rio de Janeiro, RJ, Brasil
| | - Elisa Cupolillo
- Fiocruz-Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Pesquisa em Leishmanioses, Rio de Janeiro, RJ, Brasil
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12
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Keeler EL, Merenstein C, Reddy S, Taylor LJ, Cobián-Güemes AG, Zankharia U, Collman RG, Bushman FD. Widespread, human-associated redondoviruses infect the commensal protozoan Entamoeba gingivalis. Cell Host Microbe 2023; 31:58-68.e5. [PMID: 36459997 PMCID: PMC9969835 DOI: 10.1016/j.chom.2022.11.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/05/2022] [Accepted: 11/04/2022] [Indexed: 12/03/2022]
Abstract
Redondoviruses are circular Rep-encoding single-stranded DNA (CRESS) viruses of high prevalence in healthy humans. Redondovirus abundance is increased in oro-respiratory samples from individuals with periodontitis, acute illness, and severe COVID-19. We investigated potential host cells supporting redondovirus replication in oro-respiratory samples and uncovered the oral amoeba Entamoeba gingivalis as a likely host. Redondoviruses are closely related to viruses of Entamoeba and contain reduced GC nucleotide content, consistent with Entamoeba hosts. Redondovirus and E. gingivalis co-occur in metagenomic data from oral disease and healthy human cohorts. When grown in xenic cultures with feeder bacteria, E. gingivalis was robustly positive for redondovirus RNA and DNA. A DNA proximity-ligation assay (Hi-C) on xenic culture cells showed enriched cross-linking of redondovirus and Entamoeba DNA, supporting E. gingivalis as the redondovirus host. While bacteria are established hosts for bacteriophages within the human virome, this work shows that eukaryotic commensals also contribute an abundant human-associated virus.
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Affiliation(s)
- Emma L Keeler
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Carter Merenstein
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Shantan Reddy
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Louis J Taylor
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Ana G Cobián-Güemes
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Urvi Zankharia
- Department of Medicine, Pulmonary, Allergy and Critical Care Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ronald G Collman
- Department of Medicine, Pulmonary, Allergy and Critical Care Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Frederic D Bushman
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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13
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Pereira LOR, Sousa CS, Ramos HCP, Torres-Santos EC, Pinheiro LS, Alves MR, Cuervo P, Romero GAS, Boité MC, Porrozzi R, Cupolillo E. Insights from Leishmania (Viannia) guyanensis in vitro behavior and intercellular communication. Parasit Vectors 2021; 14:556. [PMID: 34711290 PMCID: PMC8554959 DOI: 10.1186/s13071-021-05057-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 08/12/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Pentavalent antimonial-based chemotherapy is the first-line approach for leishmaniasis treatment and disease control. Nevertheless antimony-resistant parasites have been reported in some endemic regions. Treatment refractoriness is complex and is associated with patient- and parasite-related variables. Although amastigotes are the parasite stage in the vertebrate host and, thus, exposed to the drug, the stress caused by trivalent antimony in promastigotes has been shown to promote significant modification in expression of several genes involved in various biological processes, which will ultimately affect parasite behavior. Leishmania (Viannia) guyanensis is one of the main etiological agents in the Amazon Basin region, with a high relapse rate (approximately 25%). METHODS Herein, we conducted several in vitro analyses with L. (V.) guyanensis strains derived from cured and refractory patients after treatment with standardized antimonial therapeutic schemes, in addition to a drug-resistant in vitro-selected strain. Drug sensitivity assessed through Sb(III) half-maximal inhibitory concentration (IC50) assays, growth patterns (with and without drug pressure) and metacyclic-like percentages were determined for all strains and compared to treatment outcomes. Finally, co-cultivation without intercellular contact was followed by parasitic density and Sb(III) IC50 measurements. RESULTS Poor treatment response was correlated with increased Sb(III) IC50 values. The decrease in drug sensitivity was associated with a reduced cell replication rate, increased in vitro growth ability, and higher metacyclic-like proportion. Additionally, in vitro co-cultivation assays demonstrated that intercellular communication enabled lower drug sensitivity and enhanced in vitro growth ability, regardless of direct cell contact. CONCLUSIONS Data concerning drug sensitivity in the Viannia subgenus are emerging, and L. (V.) guyanensis plays a pivotal epidemiological role in Latin America. Therefore, investigating the parasitic features potentially related to relapses is urgent. Altogether, the data presented here indicate that all tested strains of L. (V.) guyanensis displayed an association between treatment outcome and in vitro parameters, especially the drug sensitivity. Remarkably, sharing enhanced growth ability and decreased drug sensitivity, without intercellular communication, were demonstrated.
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Affiliation(s)
- Luiza O R Pereira
- Laboratório de Pesquisa em Leishmanioses, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil.
| | - Cíntia S Sousa
- Laboratório de Pesquisa em Leishmanioses, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Hellen C P Ramos
- Laboratório de Pesquisa em Leishmanioses, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | | | - Liliane S Pinheiro
- Laboratório de Bioquímica de Tripanossomatídeos, IOC, FIOCRUZ, Rio de Janeiro, Brazil.,Instituto de Saúde e Biotecnologia, Universidade Federal do Amazonas, Campus Coari, Amazonas, Brazil
| | - Marcelo R Alves
- Laboratório de Pesquisa Clínica em DST-AIDS, Instituto Nacional de Infectologia Evandro Chagas, FIOCRUZ, Rio de Janeiro, Brazil
| | - Patricia Cuervo
- Laboratório de Pesquisa em Leishmanioses, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | | | - Mariana C Boité
- Laboratório de Pesquisa em Leishmanioses, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Renato Porrozzi
- Laboratório de Pesquisa em Leishmanioses, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Elisa Cupolillo
- Laboratório de Pesquisa em Leishmanioses, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
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The Maze Pathway of Coevolution: A Critical Review over the Leishmania and Its Endosymbiotic History. Genes (Basel) 2021; 12:genes12050657. [PMID: 33925663 PMCID: PMC8146029 DOI: 10.3390/genes12050657] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/01/2021] [Accepted: 04/05/2021] [Indexed: 01/10/2023] Open
Abstract
The description of the genus Leishmania as the causative agent of leishmaniasis occurred in the modern age. However, evolutionary studies suggest that the origin of Leishmania can be traced back to the Mesozoic era. Subsequently, during its evolutionary process, it achieved worldwide dispersion predating the breakup of the Gondwana supercontinent. It is assumed that this parasite evolved from monoxenic Trypanosomatidae. Phylogenetic studies locate dixenous Leishmania in a well-supported clade, in the recently named subfamily Leishmaniinae, which also includes monoxenous trypanosomatids. Virus-like particles have been reported in many species of this family. To date, several Leishmania species have been reported to be infected by Leishmania RNA virus (LRV) and Leishbunyavirus (LBV). Since the first descriptions of LRVs decades ago, differences in their genomic structures have been highlighted, leading to the designation of LRV1 in L. (Viannia) species and LRV2 in L. (Leishmania) species. There are strong indications that viruses that infect Leishmania spp. have the ability to enhance parasitic survival in humans as well as in experimental infections, through highly complex and specialized mechanisms. Phylogenetic analyses of these viruses have shown that their genomic differences correlate with the parasite species infected, suggesting a coevolutionary process. Herein, we will explore what has been described in the literature regarding the relationship between Leishmania and endosymbiotic Leishmania viruses and what is known about this association that could contribute to discussions about the worldwide dispersion of Leishmania.
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15
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Silva ANR, Júnior AMP, de Paulo PFM, da Silva MS, Castro TS, Costa GDS, Freitas MTDS, Rodrigues MMDS, Medeiros JF. Detection of Leishmania species (Kinetoplastida, Trypanosomatidae) in phlebotomine sand flies (Diptera, Psychodidae) from Porto Velho, Northern Brazil. Acta Trop 2021; 213:105757. [PMID: 33189711 DOI: 10.1016/j.actatropica.2020.105757] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/31/2020] [Accepted: 11/05/2020] [Indexed: 10/23/2022]
Abstract
Cutaneous Leishmaniasis (CL) is a vector-borne disease caused by Leishmania species and transmitted by infected female sand flies. CL is widely distributed in Brazil, but knowledge about vectors and transmission cycles could be complex according to localities. The sand fly fauna in Rondônia State is extensive, diverse, and largely unexplored. Although the state records a mean of 1,000 CL cases per year, the vectors of CL are unknown. The aim of this study was to assess phlebotomine sand fly fauna composition using diversity indexes (Shannon [H'] and Simpson [1/D]) and to detect the prevalence of Leishmania infection to verify potential vectors in three ecotopes: (i) forest fragment (FF), (ii) forest edge (FE), and (iii) peridomicile (PE). Captures were performed in four rural districts in the municipality of Porto Velho. A total of 7,026 specimens were captured comprising 72 species, and individuals classified in subgenus level. Overall, the most abundant species were Lutzomyia davisi (n: 1,105), Lutzomyia melloi (n: 760), Lutzomyia auraensis (n: 738) and Lutzomyia antunesi (n: 479). Fauna was most diverse in the FF ecotope (H' = 20.2, 1/D = 11.2), followed by the FE (H' = 18.0, 1/D = 10.1) and PE (H' = 16.6, 1/D = 10.1) ecotopes. Leishmania DNA was detected in 24 of 232 pools. In every ecotope, Leishmania naiffi DNA was identified in the following sand fly species: Lu. antunesi, Lu. davisi, Lu. hirsuta hirsuta, Lu. shawi, Lu. sordellii and Lu. (Trichophoromyia) spp. This observation may indicate that a Le. naiffi transmission focus is present in the study localities. In addition, Leishmania lainsoni was detected in Lutzomyia (Trichophoromyia) spp. Our findings show that sand fly fauna in the study localities is diverse, that Leishmania parasites are circulating in all three ecotopes, and that some sand fly species may be implicated in the transmission of Leishmania to humans in localities evaluated.
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Application of CRISPR/Cas9-Based Reverse Genetics in Leishmania braziliensis: Conserved Roles for HSP100 and HSP23. Genes (Basel) 2020; 11:genes11101159. [PMID: 33007987 PMCID: PMC7601497 DOI: 10.3390/genes11101159] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 01/18/2023] Open
Abstract
The protozoan parasite Leishmania (Viannia) braziliensis (L. braziliensis) is the main cause of human tegumentary leishmaniasis in the New World, a disease affecting the skin and/or mucosal tissues. Despite its importance, the study of the unique biology of L. braziliensis through reverse genetics analyses has so far lagged behind in comparison with Old World Leishmania spp. In this study, we successfully applied a cloning-free, PCR-based CRISPR–Cas9 technology in L. braziliensis that was previously developed for Old World Leishmania major and New World L. mexicana species. As proof of principle, we demonstrate the targeted replacement of a transgene (eGFP) and two L. braziliensis single-copy genes (HSP23 and HSP100). We obtained homozygous Cas9-free HSP23- and HSP100-null mutants in L. braziliensis that matched the phenotypes reported previously for the respective L. donovani null mutants. The function of HSP23 is indeed conserved throughout the Trypanosomatida as L. majorHSP23 null mutants could be complemented phenotypically with transgenes from a range of trypanosomatids. In summary, the feasibility of genetic manipulation of L. braziliensis by CRISPR–Cas9-mediated gene editing sets the stage for testing the role of specific genes in that parasite’s biology, including functional studies of virulence factors in relevant animal models to reveal novel therapeutic targets to combat American tegumentary leishmaniasis.
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Barrow P, Dujardin JC, Fasel N, Greenwood AD, Osterrieder K, Lomonossoff G, Fiori PL, Atterbury R, Rossi M, Lalle M. Viruses of protozoan parasites and viral therapy: Is the time now right? Virol J 2020; 17:142. [PMID: 32993724 PMCID: PMC7522927 DOI: 10.1186/s12985-020-01410-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 09/03/2020] [Indexed: 12/15/2022] Open
Abstract
Infections caused by protozoan parasites burden the world with huge costs in terms of human and animal health. Most parasitic diseases caused by protozoans are neglected, particularly those associated with poverty and tropical countries, but the paucity of drug treatments and vaccines combined with increasing problems of drug resistance are becoming major concerns for their control and eradication. In this climate, the discovery/repurposing of new drugs and increasing effort in vaccine development should be supplemented with an exploration of new alternative/synergic treatment strategies. Viruses, either native or engineered, have been employed successfully as highly effective and selective therapeutic approaches to treat cancer (oncolytic viruses) and antibiotic-resistant bacterial diseases (phage therapy). Increasing evidence is accumulating that many protozoan, but also helminth, parasites harbour a range of different classes of viruses that are mostly absent from humans. Although some of these viruses appear to have no effect on their parasite hosts, others either have a clear direct negative impact on the parasite or may, in fact, contribute to the virulence of parasites for humans. This review will focus mainly on the viruses identified in protozoan parasites that are of medical importance. Inspired and informed by the experience gained from the application of oncolytic virus- and phage-therapy, rationally-driven strategies to employ these viruses successfully against parasitic diseases will be presented and discussed in the light of the current knowledge of the virus biology and the complex interplay between the viruses, the parasite hosts and the human host. We also highlight knowledge gaps that should be addressed to advance the potential of virotherapy against parasitic diseases.
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Affiliation(s)
- Paul Barrow
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Loughborough, Leicestershire, LE12 5RD, UK.
| | - Jean Claude Dujardin
- Molecular Parasitology Unit, Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat, 155, 2000, Antwerpen, Belgium
| | - Nicolas Fasel
- Department of Biochemistry, Faculty of Biology and Medicine, University of Lausanne, Ch. des Boveresses 155, 1066, Epalinges, Switzerland
| | - Alex D Greenwood
- Department of Wildlife Diseases, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
- Department of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
- Institut für Virologie, Robert Von Ostertag-Haus - Zentrum Fuer Infektionsmedizin, Robert von Ostertag-Str. 7-13, 14163, Berlin, Germany
| | - Klaus Osterrieder
- Institut für Virologie, Robert Von Ostertag-Haus - Zentrum Fuer Infektionsmedizin, Robert von Ostertag-Str. 7-13, 14163, Berlin, Germany
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, 31 To Yuen Street, Kowloon, Hong Kong
| | - George Lomonossoff
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Pier Luigi Fiori
- Dipartimento Di Scienze Biomedice, Universita Degli Studi Di Sassari, Sardinia, Italy
| | - Robert Atterbury
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Loughborough, Leicestershire, LE12 5RD, UK
| | - Matteo Rossi
- Department of Biochemistry, Faculty of Biology and Medicine, University of Lausanne, Ch. des Boveresses 155, 1066, Epalinges, Switzerland
| | - Marco Lalle
- Unit of Foodborne and Neglected Parasitic Diseases, European Union Reference Laboratory for Parasites, Department of Infectious Diseases, Istituto Superiore Di Sanità, viale Regina Elena 299, 00186, Rome, Italy.
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18
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Abstract
PURPOSE OF REVIEW Despite modern advances in molecular diagnostic tools and a better understanding of its complex pathophysiology, cutaneous leishmaniasis, a neglected tropical disease, remains a major global health problem. Laboratory methods to inform prognosis and treatment are not widely available, the therapeutic options are limited and have significant adverse effects, and emergence of drug resistance is a further complication. New advances in the understanding of the role of Leishmania RNA virus (LRV) as a prognostic factor, speciation methods and antimicrobial resistance testing and their limitations will be discussed. RECENT FINDINGS LRV, an intracytoplasmic endosymbiont found mostly in Leishmania spp. associated with more severe disease, appears to play a role in modulating the host immune response and has been associated with treatment failure in some Viannia subgenus species. Proper speciation is an important guide to management. However, recent findings have demonstrated significant heterogeneity of results related to differences in genotyping methods. SUMMARY Recognition of the role of LRV in immune modulation and response to treatment along with more accessible tools for its detection to guide management at the bedside should allow a better individualized approach. Improving accessibility and standardization of speciation methods and antimicrobial susceptibility testing should be major goals to improve cutaneous leishmaniasis management in the 21st century.
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Kariyawasam R, Lau R, Valencia BM, Llanos-Cuentas A, Boggild AK. Leishmania RNA Virus 1 (LRV-1) in Leishmania ( Viannia) braziliensis Isolates from Peru: A Description of Demographic and Clinical Correlates. Am J Trop Med Hyg 2020; 102:280-285. [PMID: 31837129 DOI: 10.4269/ajtmh.19-0147] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
RNA virus 1-1 (LRV-1-1) is a dsRNA virus identified in isolates of Leishmania (Viannia) braziliensis and thought to advance localized cutaneous leishmaniasis (LCL) to mucocutaneous or mucosal leishmaniasis (MCL/ML). We examined the prevalence of LRV-1 and its correlation to phenotypes of American tegumentary leishmaniasis caused by L. (V.) braziliensis from Peru to better understand its epidemiology. Clinical isolates of L. (V.) braziliensis were screened for LRV-1 by real-time polymerase chain reaction (PCR) and stratified according to the phenotype: LCL (< 4 ulcers in number) MCL/ML; inflammatory ulcers (erythematous, purulent, painful ulcers with or without lymphatic involvement) or multifocal ulcers (≥ 4 in ≥ 2 anatomic sites). Proportionate LRV-1 positivity was compared across phenotypes. Of 78 L. (V.) braziliensis isolates, 26 (54.2%) had an inflammatory phenotype, 22 (28%) had the MCL/ML phenotype, whereas 30 (38.5%) had LCL. Mucocutaneous or mucosal leishmaniasis was found exclusively in adult male enrollees. Leishmania RNA virus 1 positivity by phenotype was as follows: 9/22 (41%) with MCL/ML; 5/26 (19%) with an inflammatory/multifocal cutaneous leishmaniasis phenotype; and 7/30 (23%) with LCL (P = 0.19). Leishmania RNA virus 1 positivity was not associated with age (P = 0.55) or gender (P = 0.49). Relative LRV-1 copy number was greater in those with MCL/ML than those with inflammatory/multifocal CL (P = 0.02). A direct association between LRV-1 status and clinical phenotype was not demonstrated; however, relative LRV-1 copy number was highest in those with MCL/ML. Future analyses to understand the relationship between viral burden and pathogenesis are required to determine if LRV-1 is truly a contributor to the MCL/ML phenotype.
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Affiliation(s)
| | - Rachel Lau
- Public Health Ontario Laboratory, Toronto, Canada
| | - Braulio M Valencia
- Viral Immunology Systems Program, Kirby Institute, University of New South Wales, Australia
| | | | - Andrea K Boggild
- Public Health Ontario Laboratory, Toronto, Canada.,Institute of Medical Sciences, University of Toronto, Toronto, Canada.,Department of Medicine, University of Toronto, Toronto, Canada.,Tropical Disease Unit, Toronto General Hospital, Toronto, Canada
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20
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Leishmaniavirus genetic diversity is not related to leishmaniasis treatment failure. Clin Microbiol Infect 2020; 27:286.e1-286.e5. [PMID: 32380286 DOI: 10.1016/j.cmi.2020.04.037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 04/24/2020] [Accepted: 04/26/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVES The outcome of American tegumentary leishmaniasis (ATL) may depend on the presence of the Leishmania RNA virus (LRV). This virus may be involved in treatment failure. We aimed to determine whether genetic clusters of LRV1 are involved in this therapeutic outcome. METHODS The presence of LRV1 was assessed in 129 Leishmania guyanensis isolates from patients treated with pentamidine in French Guiana. Among the 115 (89%) isolates found to carry LRV1, 96 were successfully genotyped. Patient clinical data were linked to the LRV data. RESULTS The rate of treatment failure for LRV1-positive isolates was 37% (15/41) versus 40% (2/5) among LRV1-negative isolates (p 0.88). Concerning LRV1 genotypes, two predominant LRV1 groups emerged, groups A (23% (22/96)) and B (70% (67/96)). The treatment failure rate was 37% (3/8) for group A and 45% (9/20) for group B (p 0.31). DISCUSSION Neither the presence nor genotype of LRV1 in patients with L. guyanensis seemed to correlate with pentamidine treatment failure.
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21
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Badirzadeh A, Heidari-Kharaji M, Fallah-Omrani V, Dabiri H, Araghi A, Salimi Chirani A. Antileishmanial activity of Urtica dioica extract against zoonotic cutaneous leishmaniasis. PLoS Negl Trop Dis 2020; 14:e0007843. [PMID: 31929528 PMCID: PMC6957141 DOI: 10.1371/journal.pntd.0007843] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 10/14/2019] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Neglected parasitic diseases (NTDs) like cutaneous leishmaniasis (CL) have caused high mortality and morbidity rate in developing countries. This disease is considered as one of the six major tropical diseases, and has a great importance in HIV infected individuals as an opportunistic infection in those areas that both infections are endemic. This study evaluated the therapeutic effects of the Urtica dioica L (U. dioica) aqueous extract as an anti-leishmanial herbal drug in-vitro and in-vivo, and in addition to that, evaluated two vital immune system cytokines including gamma interferon (IFN-γ) and interleukin-4 (IL-4) plus nitric oxide (NO) and arginase activity against Leishmania major (L. major) infected mice. METHODOLOGY/PRINCIPAL FINDINGS In-vitro anti-leishmanial activity of U. dioica aqueous extract was determined using MTT method and also Parasite Rescue Transformation Assay. Also, the footpad lesion size and parasite load in BALB/c mice infected with L. major were quantified for in-vivo assessment. Furthermore, for evaluating the immune responses, the levels of IFN-γ, IL-4, NO and arginase were measured in the BALB/c mice. These results indicated that U. dioica extract significantly reduced the L. major promastigotes viability. According to the in-vitro cytotoxicity assay of the extract on Leishmania parasites (CC50) and infected macrophages (EC50), the extract had no toxicity to the macrophages, however it efficiently killed the L. major amastigotes. In addition, the lesion size, parasite load, IL-4, and ARG were decreased in the treated infected mice, however IFN-γ and NO were significantly increased. CONCLUSIONS/SIGNIFICANCE This study established satisfactory results in Leishmania parasite clearing both in-vivo and in-vitro. Therefore, U. dioica extract can be considered as an effective and harmless herbal compound for killing the parasite without toxicity to the host macrophages. Furthermore, it also can treat the CL by switching the mouse immune response towards a cell-mediated response (Th1); hence, it may be identified as a perfect therapeutic herbal drug for CL treatment.
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Affiliation(s)
- Alireza Badirzadeh
- Department of Parasitology and Mycology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Vahid Fallah-Omrani
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Dabiri
- Department of Medical Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atefeh Araghi
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Amol, Iran
| | - Alireza Salimi Chirani
- Department of Medical Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Cantanhêde LM, Mattos CB, de Souza Ronconi C, Filgueira CPB, da Silva Júnior CF, Limeira C, de Jesus Silva HP, Ferreira GEM, Porrozzi R, Ferreira RDGM, Cupolillo E. First report of Leishmania (Viannia) lindenbergi causing tegumentary leishmaniasis in the Brazilian western Amazon region. ACTA ACUST UNITED AC 2019; 26:30. [PMID: 31120019 PMCID: PMC6532396 DOI: 10.1051/parasite/2019030] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 04/23/2019] [Indexed: 01/24/2023]
Abstract
Tegumentary Leishmaniasis (TL) in the Brazilian Amazon region is associated with several Leishmania species. In this report, we describe two cases of TL related to Leishmania lindenbergi occurring in different locations of Rondônia state. After clinical diagnosis, lesion samples were collected for parasitological diagnoses via direct microscopic visualization, parasite isolation, and PCR. PCR reactions were positive in both clinical samples. Parasite isolation was possible for both patients, and isolates were submitted to species identification by isoenzyme electrophoresis and DNA sequencing. This report is the first to describe human infections caused by L. lindenbergi since the initial description and record of human infection by this species in 2002.
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Affiliation(s)
| | | | | | | | | | - Claudino Limeira
- Fundação Oswaldo Cruz, Unidade Rondônia, Porto Velho, Rondônia, Brazil
| | | | | | - Renato Porrozzi
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, IOC, Rio de Janeiro, Brazil
| | | | - Elisa Cupolillo
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, IOC, Rio de Janeiro, Brazil
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23
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Resadore F, Júnior AMP, de Paulo PFM, Gil LHS, Rodrigues MMDS, Araújo MDS, Julião GR, Medeiros JF. Composition and Vertical Stratification of Phlebotomine Sand Fly Fauna and the Molecular Detection of Leishmania in Forested Areas in Rondônia State Municipalities, Western Amazon, Brazil. Vector Borne Zoonotic Dis 2019; 19:347-357. [DOI: 10.1089/vbz.2018.2372] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Fábio Resadore
- Laboratório de Entomologia, Fundação Oswaldo Cruz - Fiocruz Rondônia, Porto Velho, Rondônia, Brazil
- Programa de Pós-Graduação em Biologia Experimental, Fundação Universidade Federal de Rondônia, Porto Velho, Rondônia, Brazil
| | - Antônio Marques Pereira Júnior
- Laboratório de Entomologia, Fundação Oswaldo Cruz - Fiocruz Rondônia, Porto Velho, Rondônia, Brazil
- Programa de Pós-Graduação em Biologia Experimental, Fundação Universidade Federal de Rondônia, Porto Velho, Rondônia, Brazil
- Laboratório de Entomologia, Instituto Nacional de Epidemiologia da Amazônia Ocidental - INCT/EpiAmo, Fundação Oswaldo Cruz - Fiocruz Rondônia, Porto Velho, Rondônia, Brazil
| | | | - Luiz Herman Soares Gil
- Laboratório de Entomologia, Instituto de Pesquisas e Patologias Tropicais de Rondônia, Porto Velho, Rondônia, Brazil
| | | | - Maísa da Silva Araújo
- Laboratório de Entomologia, Fundação Oswaldo Cruz - Fiocruz Rondônia, Porto Velho, Rondônia, Brazil
| | - Genimar Rebouças Julião
- Laboratório de Entomologia, Fundação Oswaldo Cruz - Fiocruz Rondônia, Porto Velho, Rondônia, Brazil
- Laboratório de Entomologia, Instituto Nacional de Epidemiologia da Amazônia Ocidental - INCT/EpiAmo, Fundação Oswaldo Cruz - Fiocruz Rondônia, Porto Velho, Rondônia, Brazil
| | - Jansen Fernandes Medeiros
- Laboratório de Entomologia, Fundação Oswaldo Cruz - Fiocruz Rondônia, Porto Velho, Rondônia, Brazil
- Laboratório de Entomologia, Instituto Nacional de Epidemiologia da Amazônia Ocidental - INCT/EpiAmo, Fundação Oswaldo Cruz - Fiocruz Rondônia, Porto Velho, Rondônia, Brazil
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Nalçacı M, Karakuş M, Yılmaz B, Demir S, Özbilgin A, Özbel Y, Töz S. Detection of Leishmania RNA virus 2 in Leishmania species from Turkey. Trans R Soc Trop Med Hyg 2019; 113:410-417. [DOI: 10.1093/trstmh/trz023] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/08/2019] [Accepted: 03/26/2019] [Indexed: 01/09/2023] Open
Affiliation(s)
- Muhammed Nalçacı
- Ege University, Institute of Science, Division of Biology, Department of Zoology, Bornova, İzmir, Turkey
| | - Mehmet Karakuş
- University of Health Sciences, Health Sciences Institute, Biotechnology Department, Üsküdar, İstanbul, Turkey
| | - Bahtiyar Yılmaz
- Ege University, Institute of Science, Division of Biology, Department of Microbiology, Bornova, İzmir, Turkey
| | - Samiye Demir
- Ege University, Institute of Science, Division of Biology, Department of Zoology, Bornova, İzmir, Turkey
| | - Ahmet Özbilgin
- Manisa Celal Bayar University, Medical Faculty, Department of Parasitology, Manisa, Turkey
| | - Yusuf Özbel
- Ege University, Medical Faculty, Department of Parasitology, Bornova, İzmir, Turkey
| | - Seray Töz
- Ege University, Medical Faculty, Department of Parasitology, Bornova, İzmir, Turkey
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Draft Whole-Genome Sequence of Leishmania (Viannia) braziliensis Presenting Leishmania RNA Virus 1, from Western Amazon, Brazil. Microbiol Resour Announc 2018; 7:MRA00924-18. [PMID: 30533928 PMCID: PMC6256520 DOI: 10.1128/mra.00924-18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 08/14/2018] [Indexed: 11/20/2022] Open
Abstract
Leishmania (Viannia) braziliensis is the main etiological agent of tegumentary leishmaniasis in the neotropics. Here, we report a draft genome sequence (31.2 Mb) of an L. braziliensis strain from the western Amazon region of Brazil. Leishmania (Viannia) braziliensis is the main etiological agent of tegumentary leishmaniasis in the neotropics. Here, we report a draft genome sequence (31.2 Mb) of an L. braziliensis strain from the western Amazon region of Brazil. This genome sequence will complement those available for other Leishmania species and contribute to further studies focusing on this parasite and the neglected diseases associated with it.
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