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Konno H, Yokoyama N, Tamura Y, Aoshima K, Nakao R, Takiguchi M, Katakura K. An experimental challenge model for Leishmania donovani in beagle dogs, showing a similar pattern of parasite burden in the peripheral blood and liver. Parasitol Res 2022; 121:3569-3579. [PMID: 36222954 PMCID: PMC9554375 DOI: 10.1007/s00436-022-07681-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 09/23/2022] [Indexed: 01/19/2023]
Abstract
Leishmania donovani and Leishmania infantum are closely related species. However, the former is considered the causative agent for anthroponotic visceral leishmaniasis (AVL), while the latter is known to be responsible for zoonotic visceral leishmaniasis (ZVL) with dogs as the main reservoir host. Although molecular detection of L. donovani from naturally infected dogs has been reported in AVL endemic areas, the experimental infection of dogs with this species is very limited. Here, we constructed an experimental canine visceral leishmaniasis (CVL) model with L. donovani infection using beagle dogs. During an observation period of 8 months after parasite inoculation, few clinical symptoms were observed in the three inoculated dogs. The overall hematological and biochemical data of the dogs showed normal levels, and there were no remarkable changes in the peripheral CD4+, CD8+, CD25+, or FoxP3+ T cell populations. Liver biopsy sampling was conducted to monitor the parasite burden in the liver. A similar pattern of the amount of mitochondrial kinetoplast DNA was observed in the peripheral blood and liver by real-time PCR analysis. In addition, parasite antigens were detected from the liver biopsy sections by immunohistochemical analysis, further supporting the existence of parasites in the liver. These results showed a subclinical CVL model for L. donovani in beagle dogs with a similar kinetics of parasite burden in the peripheral blood and liver.
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Affiliation(s)
- Hiroya Konno
- Laboratory of Parasitology, Graduate School of Infectious Diseases, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Nozomu Yokoyama
- Veterinary Teaching Hospital, Hokkaido University, Sapporo, 060-0818, Japan
| | - Yu Tamura
- Veterinary Teaching Hospital, Hokkaido University, Sapporo, 060-0818, Japan.,Veterinary Teaching Hospital, Azabu University, Sagamihara, Kanagawa, 252-5201, Japan
| | - Keisuke Aoshima
- Laboratory of Comparative Pathology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Ryo Nakao
- Laboratory of Parasitology, Graduate School of Infectious Diseases, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Mitsuyoshi Takiguchi
- Veterinary Teaching Hospital, Hokkaido University, Sapporo, 060-0818, Japan.,Laboratory of Internal Medicine, Graduate School of Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Ken Katakura
- Laboratory of Parasitology, Graduate School of Infectious Diseases, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
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Maity S, Chakraborty A, Mahata SK, Roy S, Das AK, Sen M. Wnt5A Signaling Blocks Progression of Experimental Visceral Leishmaniasis. Front Immunol 2022; 13:818266. [PMID: 35197983 PMCID: PMC8859155 DOI: 10.3389/fimmu.2022.818266] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/14/2022] [Indexed: 11/13/2022] Open
Abstract
Visceral leishmaniasis, caused by L. donovani infection is fatal if left untreated. The intrinsic complexity of visceral leishmaniasis complicated further by the increasing emergence of drug resistant L. donovani strains warrants fresh investigations into host defense schemes that counter infections. Accordingly, in a mouse model of experimental visceral leishmaniasis we explored the utility of host Wnt5A in restraining L. donovani infection, using both antimony sensitive and antimony resistant L. donovani strains. We found that Wnt5A heterozygous (Wnt5A +/-) mice are more susceptible to L. donovani infection than their wild type (Wnt5A +/+) counterparts as depicted by the respective Leishman Donovan Units (LDU) enumerated from the liver and spleen harvested from infected mice. Higher LDU in Wnt5A +/- mice correlated with increased plasma gammaglobulin level, incidence of liver granuloma, and disorganization of splenic white pulp. Progression of infection in mice by both antimony sensitive and antimony resistant strains of L. donovani could be prevented by activation of Wnt5A signaling through intravenous administration of rWnt5A prior to L. donovani infection. Wnt5A mediated blockade of L. donovani infection correlated with the preservation of splenic macrophages and activated T cells, and a proinflammatory cytokine bias. Taken together our results indicate that while depletion of Wnt5A promotes susceptibility to visceral leishmaniasis, revamping Wnt5A signaling in the host is able to curb L. donovani infection irrespective of antimony sensitivity or resistance and mitigate the progression of disease.
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Affiliation(s)
- Shreyasi Maity
- Cancer Biology & Inflammatory Disorder, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Arijit Chakraborty
- Department of General Surgery, Massachusetts General Hospital, Boston, MA, United States
| | - Sushil Kumar Mahata
- Medicine, VA San Diego Healthcare System, University of California, San Diego, La Jolla, CA, United States
| | - Syamal Roy
- Cancer Biology & Inflammatory Disorder, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Anjan Kumar Das
- Department of Pathology Calcutta National Medical College & Hospital, Kolkata, India
| | - Malini Sen
- Cancer Biology & Inflammatory Disorder, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- *Correspondence: Malini Sen, ;
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Menghini L, Ferrante C, Carradori S, D’Antonio M, Orlando G, Cairone F, Cesa S, Filippi A, Fraschetti C, Zengin G, Ak G, Tacchini M, Iqbal K. Chemical and Bioinformatics Analyses of the Anti-Leishmanial and Anti-Oxidant Activities of Hemp Essential Oil. Biomolecules 2021; 11:biom11020272. [PMID: 33673274 PMCID: PMC7917915 DOI: 10.3390/biom11020272] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/04/2021] [Accepted: 02/05/2021] [Indexed: 12/20/2022] Open
Abstract
Industrial hemp is a multiuse crop that has been widely cultivated to produce fibers and nutrients. The capability of the essential oil (EO) from inflorescences as antimicrobial agent has been reported. However, literature data are still lacking about the hemp EO antiprotozoal efficacy in vivo. The present study aims to unravel this concern through the evaluation of the efficacy of hemp EOs (2.5 mL/kg, intraperitoneally) of three different cultivars, namely Futura 75, Carmagnola selezionata and Eletta campana, in mice intraperitoneally infected with Leishmania tropica. A detailed description of EO composition and targets-components analysis is reported. Myrcene, α-pinene and E-caryophyllene were the main components of the EOs, as indicated by the gas-chromatographic analysis. However, a prominent position in the scenario of the theoretical interactions underlying the bio-pharmacological activity was also occupied by selina-3,7(11)-diene, which displayed affinities in the micromolar range (5.4–28.9) towards proliferator-activated receptor α, cannabinoid CB2 receptor and acetylcholinesterase. The content of this compound was higher in Futura 75 and Eletta campana, in accordance with their higher scavenging/reducing properties and efficacy against the tissue wound, induced by L. tropica. Overall, the present study recommends hemp female inflorescences, as sources of biomolecules with potential pharmacological applications, especially towards infective diseases.
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Affiliation(s)
- Luigi Menghini
- Department of Pharmacy, Università degli Studi “Gabriele d’Annunzio”, Via dei Vestini 31, 66100 Chieti, Italy; (L.M.); (S.C.); (G.O.)
| | - Claudio Ferrante
- Department of Pharmacy, Università degli Studi “Gabriele d’Annunzio”, Via dei Vestini 31, 66100 Chieti, Italy; (L.M.); (S.C.); (G.O.)
- Correspondence: (C.F.); (M.T.); Tel./Fax: +39-0871-355-4753 (C.F.)
| | - Simone Carradori
- Department of Pharmacy, Università degli Studi “Gabriele d’Annunzio”, Via dei Vestini 31, 66100 Chieti, Italy; (L.M.); (S.C.); (G.O.)
| | | | - Giustino Orlando
- Department of Pharmacy, Università degli Studi “Gabriele d’Annunzio”, Via dei Vestini 31, 66100 Chieti, Italy; (L.M.); (S.C.); (G.O.)
| | - Francesco Cairone
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (F.C.); (S.C.); (A.F.); (C.F.)
| | - Stefania Cesa
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (F.C.); (S.C.); (A.F.); (C.F.)
| | - Antonello Filippi
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (F.C.); (S.C.); (A.F.); (C.F.)
| | - Caterina Fraschetti
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (F.C.); (S.C.); (A.F.); (C.F.)
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk University, Campus, 42130 Konya, Turkey; (G.Z.); (G.A.)
| | - Gunes Ak
- Department of Biology, Science Faculty, Selcuk University, Campus, 42130 Konya, Turkey; (G.Z.); (G.A.)
| | - Massimo Tacchini
- Department of Life Sciences and Biotechnology (SVeB), UR7 Terra&Acqua Tech, University of Ferrara, 44121 Ferrara, Italy
- Correspondence: (C.F.); (M.T.); Tel./Fax: +39-0871-355-4753 (C.F.)
| | - Kashif Iqbal
- Department of Pharmacy, University of Lahore, Islamabad Campus, Islamabad 54590, Pakistan;
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Srinontong P, Wu Z, Sato K, Nagaoka H, Maekawa Y. The circulating immunoglobulins negatively impact on the parasite clearance in the liver of Leishmania donovani-infected mice via dampening ROS activity. Biochem Biophys Res Commun 2018; 506:20-26. [PMID: 30336975 DOI: 10.1016/j.bbrc.2018.10.055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 10/07/2018] [Indexed: 11/29/2022]
Abstract
Visceral leishmaniasis, the most severe form of leishmaniasis, is caused by Leishmania donovani and L. infantum. Immunity to Leishmania infection has been shown to depend on the development of Th1 cells; however, the roles of B cells and antibodies during infection remain unclear. In the present study, we showed that AID and μs double-deficient mice (DKO), which have B cells but not circulating immunoglobulins (cIgs), became resistant to L. donovani infection, whereas μs or AID single-deficient mice did not. This resistance in DKO mice occurred in the liver from an early stage of the infection. The depletion of IFN-γ did not affect the rapid reduction of parasite burden, whereas NADPH oxidases was up-regulated in the livers of infected DKO mice. The inhibition of the reactive oxygen species pathway in vivo by apocynin, a NADPH oxidase inhibitor, resulted in a significant increase in the parasite burden in DKO mice. These results indicate that a circulating Ig deficiency induces a protective response against L. donovani infection by elevating IFN-γ-independent NADPH oxidase activity, and also that cIgs play a regulatory role in controlling L. donovani infection in mice.
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Affiliation(s)
- Piyarat Srinontong
- Department of Parasitology and Infectious Diseases, Gifu University Graduate School of Medicine, Gifu, Japan; Office of Academic Affairs, Faculty of Veterinary Sciences, Mahasarakham University, Mahasarakham, Thailand
| | - Zhiliang Wu
- Department of Parasitology and Infectious Diseases, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Katsuya Sato
- Department of Molecular Pathobiochemistry, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hitoshi Nagaoka
- Department of Molecular Pathobiochemistry, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yoichi Maekawa
- Department of Parasitology and Infectious Diseases, Gifu University Graduate School of Medicine, Gifu, Japan; Domain of Integrated Life Systems, Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, Gifu, Japan.
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