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da Rocha Silva FB, Miguel DC, Minori K, Grazzia N, Machado VE, de Oliveira CM, Tosta CD, Pinto MC. Attractiveness of Golden Hamster infected with Leishmania amazonensis (Kinetoplastida: Trypanosomatidae) to laboratory-reared Lutzomyia longipalpis (Diptera: Psychodidae). Acta Trop 2024; 255:107238. [PMID: 38710262 DOI: 10.1016/j.actatropica.2024.107238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 03/29/2024] [Accepted: 05/02/2024] [Indexed: 05/08/2024]
Abstract
Lutzomyia longipalpis is the primary vector of Leishmania infantum in the Americas and a permissive vector for Leishmania amazonensis. Previous studies showed that Leishmania infantum-infected hosts can release different volatile organic compounds (VOCs) compared with uninfected hosts, presenting a higher attractiveness to vectors. In this study, we aimed to evaluate a possible effect of L. amazonensis infection of golden hamsters in three parameters: attractiveness to Lu. longipalpis females; blood volume ingested by sand fly females; and VOCs released by the animals.. Attractiveness was measured indirectly by the number of Lu. longipalpis females that blood fed in each L. amazonensis-infected and uninfected animal. For VOCs extraction, solid phase micro extraction fibers were used, which were analyzed by gas chromatography-mass spectrometry. Behavioral trials did not show any effect of L. amazonensis infection on the attraction of sand flies nor difference on blood meal rates of Lu. longipalpis fed in both goups of hamsters. Additionally, there was no difference between the VOCs profiles of L. amazonensis-infected or uninfected hamsters.
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Affiliation(s)
- Flávia Benini da Rocha Silva
- Departamento de Ciências Biológicas, Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Câmpus Araraquara, Araraquara, São Paulo, Brasil.
| | - Danilo Ciccone Miguel
- Departamento de Biologia Animal, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brasil
| | - Karen Minori
- Departamento de Biologia Animal, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brasil
| | - Nathália Grazzia
- Departamento de Biologia Animal, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brasil
| | - Vicente Estevam Machado
- Departamento de Ciências Biológicas, Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Câmpus Araraquara, Araraquara, São Paulo, Brasil
| | - Cíntia Marcelo de Oliveira
- Departamento de Ciências Biológicas, Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Câmpus Araraquara, Araraquara, São Paulo, Brasil
| | - Christiann Davis Tosta
- Instituto Federal de Educação, Ciência e Tecnologia de São Paulo (IFSP), Câmpus Matão, Matão, São Paulo, Brasil
| | - Mara Cristina Pinto
- Departamento de Ciências Biológicas, Universidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Câmpus Araraquara, Araraquara, São Paulo, Brasil
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Delprete JA, de Almeida LV, Barros AM, Soler RDC, Bittencourt AA, Luna EJDA, Lindoso JAL, Braz LMA. Detection of Internal Transcribed Spacer 1 and hsp70 Genetic Markers Using Restriction Fragment Length Polymorphisms and Sequencing in Identification of Leishmania Species Causing Tegumentary Leishmaniasis in Brazil. Am J Trop Med Hyg 2024; 110:52-58. [PMID: 38081057 DOI: 10.4269/ajtmh.23-0063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 10/31/2023] [Indexed: 01/05/2024] Open
Abstract
The identification of Leishmania species that cause tegumentary leishmaniasis (TL) is important for taxonomic and prognostic purposes. Molecular analysis using different Leishmania genomic targets is the most useful method for identifying Leishmania species. Therefore, we evaluated the performance of ribosomal RNA internal transcribed spacer 1 (ITS1) and heat shock protein (hsp70) genetic markers by polymerase chain reaction (PCR), followed by restriction fragment length polymorphism analysis (RFLP) and sequencing, for identification of Leishmania species. Samples from 84 Brazilian patients were amplified. Internal transcribed spacer 1 PCR followed by RFLP (HaeIII) [ITS1-RFLP (HaeIII)] identified 46.4% (39/84) of the samples as compatible with the Viannia subgenus. Internal transcribed spacer 1 PCR followed by sequencing (ITS1-sequencing) identified Leishmania (Viannia) braziliensis in 91.7% (77/84) of the TL samples, Leishmania (Leishmania) amazonensis in 3.6% (3/84), L. (V.) guyanensis in 2.4% (2/84), and L. (L.) infantum in 1.2% (1/84). One of the samples showed the same proportion of similarity with L. (V.) guyanensis and L. (V.) panamensis. hsp70 nested PCR followed by RFLP (HaeIII) [nested hsp70-RFLP (HaeIII)] identified 91.7% (77/84) of the samples as compatible with L. (V.) braziliensis/L. (V.) naiffi, 3.6% (3/84) with L. (L.) amazonensis, 1.2% (1/84) with L. (L.) infantum, and 3.6% (3/84) with L. (V.) guyanensis. hsp70 PCR followed by sequencing (hsp70-sequencing) identified L. (V.) braziliensis in 91.7% (77/84) of the TL samples, L. (L.) amazonensis in 3.6% (3/84), L. (V.) guyanensis in 3.6% (3/84), and L. (L.) infantum in 1.2% (1/84). Our findings clearly showed that nested hsp70-RFLP (HaeIII) is better than ITS1-RFLP (HaeIII) and that ITS1 or hsp70 PCR followed by sequencing was adequate for identifying Leishmania species. We also found that Leishmania (Viannia) braziliensis is the most common species causing TL in Brazil. Therefore, sequencing multiple target genes such as ITS1 and hsp 70 is more accurate than RFLP for identifying Leishmania species.
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Affiliation(s)
- Jaqueline Alves Delprete
- Departamento de Doenças Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil
- Instituto de Infectologia Emílio Ribas, São Paulo, Brazil
| | | | | | | | | | | | - José Angelo Lauletta Lindoso
- Departamento de Doenças Infecciosas e Parasitárias, Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil
- Instituto de Infectologia Emílio Ribas, São Paulo, Brazil
- Laboratório de Protozoologia (LIM-56 HC-FMUSP), Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Lúcia Maria Almeida Braz
- Departamento de Medicina Preventiva, Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil
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Sapp SGH, Low R, Nine G, Nascimento FS, Qvarnstrom Y, Barratt JLN. Genetic characterization and description of Leishmania (Leishmania) ellisi sp. nov.: a new human-infecting species from the USA. Parasitol Res 2023; 123:52. [PMID: 38099974 PMCID: PMC10724317 DOI: 10.1007/s00436-023-08034-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/09/2023] [Indexed: 12/18/2023]
Abstract
In a 2018 report, an unusual case of cutaneous leishmaniasis was described in a 72-year-old female patient residing in Arizona, United States of America (USA). Preliminary analysis of the 18S rDNA and glyceraldehyde-3-phosphate dehydrogenase genes supported the conclusion that the Leishmania strain (strain 218-L139) isolated from this case was a novel species, though a complete taxonomic description was not provided. Identification of Leishmania at the species level is critical for clinical management and epidemiologic investigations so it is important that novel human-infecting species are characterized taxonomically and assigned a unique scientific name compliant with the ICZN code. Therefore, we sought to provide a complete taxonomic description of Leishmania strain 218-L139. Phylogenetic analysis of several nuclear loci and partial maxicircle genome sequences supported its position within the subgenus Leishmania and further clarified the distinctness of this new species. Morphological characterization of cultured promastigotes and amastigotes from the original case material is also provided. Thus, we conclude that Leishmania (Leishmania) ellisi is a new cause of autochthonous cutaneous leishmaniasis in the USA.
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Affiliation(s)
- Sarah G H Sapp
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Ross Low
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA
- Oak Ridge Institute of Science and Education, Oak Ridge, TN, USA
| | - Gabriela Nine
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA
- Association of Public Health Laboratories, Silver Spring, MD, USA
| | - Fernanda S Nascimento
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Yvonne Qvarnstrom
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Joel L N Barratt
- Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA.
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Garcia AR, Amorim MMB, Amaral ACF, da Cruz JD, Vermelho AB, Nico D, Rodrigues IA. Anti- Leishmania amazonensis Activity, Cytotoxic Features, and Chemical Profile of Allium sativum (Garlic) Essential Oil. Trop Med Infect Dis 2023; 8:375. [PMID: 37505671 PMCID: PMC10384145 DOI: 10.3390/tropicalmed8070375] [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: 05/15/2023] [Revised: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 07/29/2023] Open
Abstract
Human tegumentary leishmaniasis (HTL) is a serious tropical disease caused by Leishmania amazonensis. Developing new leishmanicidal agents can help overcome current treatment challenges, such as drug resistance and toxicity. Essential oils are a source of lipophilic substances with diverse therapeutic properties. This study aimed to determine the anti-L. amazonensis activity, cytotoxicity, and chemical profile of Allium sativum essential oil (ASEO). The effect of ASEO on parasite and mammalian cells viability was evaluated using resazurin and MTT assays, respectively. The oil's effect against intracellular amastigotes was also determined. Transmission electron microscopy was used to assess the ultrastructural changes induced by ASEO. In addition, the chemical constituents of ASEO were identified by gas chromatography-mass spectrometry (GC-MS). The cytotoxic potential was evaluated in vitro and in silico. The oil displayed IC50 of 1.76, 3.46, and 3.77 µg/mL against promastigotes, axenic, and intracellular amastigotes, respectively. Photomicrographs of treated parasites showed plasma membrane disruption, increased lipid bodies, and autophagic-like structures. ASEO chemical profiling revealed 1,2,4,6-tetrathiepane (24.84%) and diallyl disulfide (16.75%) as major components. Computational pharmacokinetics and toxicological analysis of ASEO's major components demonstrated good oral bioavailability and better toxicological endpoints than the reference drugs. Altogether, the results suggest that ASEO could be an alternative drug candidate against HTL.
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Affiliation(s)
- Andreza R Garcia
- Programa de Pós-graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Mariana M B Amorim
- Instituto Municipal de Vigilância Sanitária, Vigilância de Zoonoses e de Inspeção Agropecuária, Rio de Janeiro 22290-240, Brazil
| | - Ana Claudia F Amaral
- Departamento de Produtos Naturais, Farmanguinhos Fiocruz, Manguinhos, Rio de Janeiro 21041-250, Brazil
| | - Jefferson D da Cruz
- Departamento de Produtos Naturais, Farmanguinhos Fiocruz, Manguinhos, Rio de Janeiro 21041-250, Brazil
| | - Alane B Vermelho
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Dirlei Nico
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Igor A Rodrigues
- Programa de Pós-graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
- Departamento de Produtos Naturais e Alimentos, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
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de Sousa RLT, Araujo-Pereira TD, Leal ARDS, Freire SM, Silva CLM, Mallet JRDS, Vilela ML, Vasconcelos SA, Gomes R, Teixeira C, Britto C, Pita Pereira DD, Carvalho BMD. Association between the potential distribution of Lutzomyia longipalpis and Nyssomyia whitmani and leishmaniasis incidence in Piauí State, Brazil. PLoS Negl Trop Dis 2023; 17:e0011388. [PMID: 37276231 DOI: 10.1371/journal.pntd.0011388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 05/17/2023] [Indexed: 06/07/2023] Open
Abstract
BACKGROUND Leishmaniases are vector borne diseases caused by Leishmania spp. parasites transmitted by female sandflies (Diptera: Psychodidae) whose geographic distribution is influenced by environmental factors. Among the main tools for studying the distribution of vector species, modeling techniques are used to analyze the influence of climatic and environmental factors on the distribution of these insects and their association with human cases of the disease. METHODOLOGY/PRINCIPAL FINDINGS Here, we used a multiscale ecological niche modeling approach to assess the environmental suitability of sandfly vectors of the etiological agents of Visceral (VL) and American Cutaneous Leishmaniasis (ACL) in Piauí state, northeastern Brazil, and then evaluated their relationship with human disease incidence. For this, we obtained the geographic coordinates of the vector species Lutzomyia longipalpis and Nyssomyia whitmani through literature review, online databases and unpublished records. These data were used for the development of predictive models of the distribution of both sandflies species based on climatic and environmental variables. Finally, the environmental suitability for the presence of these vectors was compared with the incidence of both the diseases at the municipality level. The final models for each sandfly species showed good predictive powers with performance metric values of 0.889 for Lu. longipalpis and 0.776 for Ny. whitmani. The areas with greater environmental suitability for the presence of these species were concentrated in the central-north region of Piauí and coincide with the location of those municipalities presenting higher incidences of VL and ACL, situated in the central-north and extreme north of the state, respectively. The south and southeast regions of Piauí state have low incidence of these diseases and presented low environmental suitability for the presence of both vectors. CONCLUSIONS/SIGNIFICANCE We discuss how predictive modeling can guide entomological and epidemiological surveillances and recommend an increased supervision and control activities in Teresina (capital of the state of Piaui), Altos and Pedro II, in addition to other municipalities with similar social and environmental characteristics.
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Affiliation(s)
| | - Thais de Araujo-Pereira
- Laboratório de Biologia Molecular e Doenças Endêmicas, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, Brasil
| | | | - Simone Mousinho Freire
- Laboratório de Zoologia e Biologia Parasitária, Universidade Estadual do Piauí, Teresina, Piauí, Brasil
| | - Cleanto Luiz Maia Silva
- Laboratório de Zoologia e Biologia Parasitária, Universidade Estadual do Piauí, Teresina, Piauí, Brasil
| | - Jacenir Reis Dos Santos Mallet
- Laboratório Interdisciplinar de Vigilância Entomológica em Díptera e Hemíptera, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, Brasil
- Escritório Regional Fiocruz-Piauí, Teresina, Piauí, Brasil
- Laboratório de Vigilância e Biodiversidade em Saúde, Universidade Iguaçu, Nova Iguaçu, Rio de Janeiro, Brasil
| | - Mauricio Luiz Vilela
- Laboratório Interdisciplinar de Vigilância Entomológica em Díptera e Hemíptera, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, Brasil
| | | | - Régis Gomes
- Departamento de Biotecnologia Fiocruz-Ceará, Eusébio, Ceará, Brasil
| | | | - Constança Britto
- Laboratório de Biologia Molecular e Doenças Endêmicas, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, Brasil
| | - Daniela de Pita Pereira
- Laboratório de Biologia Molecular e Doenças Endêmicas, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, Brasil
| | - Bruno Moreira de Carvalho
- Climate and Health Program, Earth Sciences Department, Barcelona Institute for Global Health, Barcelona, Spain
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