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Yamasaki H, Sugiyama H, Morishima Y, Kobayashi H. Description of Spirometra asiana sp. nov. (Cestoda: Diphyllobothriidae) found in wild boars and hound dogs in Japan. Parasitol Int 2024; 98:102798. [PMID: 37659580 DOI: 10.1016/j.parint.2023.102798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/24/2023] [Accepted: 08/24/2023] [Indexed: 09/04/2023]
Abstract
According to the latest taxonomy of Spirometra species, six species (lineages) have been tentatively classified as valid. These species are Spirometra erinaceieuropaei, S. folium, S. mansoni, undescribed Spirometra sp. 1, and S. decipiens complex 1 and 2. Among these species, the undescribed species was first discovered as plerocercoid larvae in wild boars in Japan and further studies have confirmed that this species is a new taxon belonging to the genus Spirometra. Here, we describe Spirometra asiana sp. nov., which is difficult to distinguish morphologically from known Spirometra species. However, it is genetically easily distinct from other Spirometra species, thus facilitating identification. We also emphasize that S. mansoni and S. asiana, but not S. erinaceieuropaei, are etiological agents that cause human sparganosis and/or spirometrosis in Asia.
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Affiliation(s)
- Hiroshi Yamasaki
- Department of Parasitology National Institute of Infectious Diseases, Tokyo 162-8640, Japan.
| | - Hiromu Sugiyama
- Department of Parasitology National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Yasuyuki Morishima
- Department of Parasitology National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Hirotaka Kobayashi
- Department of Pathology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
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Hu D, Jin W, Ding H, Pang Y, Ma S, Yang M, Wu S, Jiang M, Pang L, Luo S, Ning Q. Spirometra mansoni sparganosis identified by metagenomic next-generation sequencing: a case report. Int J Infect Dis 2023; 128:128-131. [PMID: 36592686 DOI: 10.1016/j.ijid.2022.12.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/26/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022] Open
Abstract
A 30-year-old male patient had a cyst on the left hip and progressive enlargement for more than 2 months. Combined blood tests, magnetic resonance imaging, and pathology findings, cysticercosis infection was suspected. However, the treatment for cysticercosis was ineffective. We conducted a metagenomic next-generation sequencing (mNGS) analysis on the formalin-fixed, paraffin-embedded specimen of the patient's surgically excised tissue, and the results suggested Spirometra mansoni, mNGS was further confirmed by polymerase chain reaction and phylogenetic analysis of cytochrome c oxidase subunit 1 (cox1) gene. Based on these results, we found that mNGS provided a better method of diagnosing parasitic infections.
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Affiliation(s)
- Diefei Hu
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China.
| | - Wenxiang Jin
- KingMed Diagnostics, Guangzhou, People's Republic of China.
| | - Huarong Ding
- Department of burns and plastic surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China.
| | - Yu Pang
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China.
| | - Shasha Ma
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China.
| | - Min Yang
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China.
| | - Shuwen Wu
- KingMed Diagnostics, Guangzhou, People's Republic of China.
| | - Muliang Jiang
- Department of Radiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China.
| | - Lingling Pang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China.
| | - Shuming Luo
- Infection Diseases Section of The Second Nanning People's Hospital, Nanning, People's Republic of China.
| | - Qiuyue Ning
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China.
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Morales A, Laird-Pérez RM, Capó V, Iglesias E, Fonte L, Plascencia-Hernández A, Calderón EJ, Eom KS, de Armas Y, Pérez-Gómez HR. Genetic and Morphological Identification of Spirometra decipiens in Snakes and Domestic Dog Found in Cuba. Pathogens 2022; 11:pathogens11121468. [PMID: 36558802 PMCID: PMC9780860 DOI: 10.3390/pathogens11121468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Spirometra (Cestoda: Diphyllobothriidea) affects humans and some species of domestic and wild animals which eventually interact with humans. In this article, we report three new cases of Spirometra decipiens (Diesing, 1850) infection observed in two intermediate hosts and one definitive host, in Cuba. Genetic and morphological identification of S. decipiens in two snakes and a domestic dog were carried out by molecular means and routine histological study using hematoxylin-eosin staining, respectively. Taken together, the anatomical location, the host species infected with the specimens and their morphological and genetic features, all the samples were identified as S. decipiens. In each of the three cases, PCR assays using specific primers amplified bands that corresponded to S. decipiens species. To our knowledge, this paper is the first report of S. decipiens in species of Cuban endemic fauna and in the Caribbean islands. These species constitute a real or potential risk of transmission of Spirometra to humans in Cuba.
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Affiliation(s)
- Alexander Morales
- Pathology Department, Hospital Center, Institute of Tropical Medicine “Pedro Kourí”, Havana 11400, Cuba
| | - Rebeca M. Laird-Pérez
- Teaching Department, Institute of Tropical Medicine “Pedro Kourí”, Havana 11400, Cuba
| | - Virginia Capó
- Pathology Department, Hospital Center, Institute of Tropical Medicine “Pedro Kourí”, Havana 11400, Cuba
| | - Enrique Iglesias
- Centro de Ingeniería Genética y Biotecnología, Habana 11400, Cuba
| | - Luis Fonte
- Parasitology Department, Institute of Tropical Medicine “Pedro Kourí”, Havana 11400, Cuba
| | | | - Enrique J. Calderón
- Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/Consejo Superior de Investigaciones Científicas/Universidad de Sevilla, 41013 Seville, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain
| | - Keeseon S. Eom
- Department of Parasitology and Medical Research Institute, School of Medicine, Chungbuk National University, Chungbuk 361-763, Cheongju 28644, Republic of Korea
| | - Yaxsier de Armas
- Pathology Department, Hospital Center, Institute of Tropical Medicine “Pedro Kourí”, Havana 11400, Cuba
- Department of Clinical Microbiology Diagnosis, Hospital Center, Institute of Tropical Medicine “Pedro Kourí”, Havana 11400, Cuba
| | - Héctor R. Pérez-Gómez
- Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, Mexico
- Correspondence: ; Tel.: +52-333-808-0396
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Chen SY, Gong TF, He JL, Li F, Li WC, Xie LX, Xie XR, Liu YS, Zhou YF, Liu W. Molecular Characterization and Phylogenetic Analysis of Spirometra Tapeworms from Snakes in Hunan Province. Vet Sci 2022; 9:vetsci9020062. [PMID: 35202315 PMCID: PMC8879218 DOI: 10.3390/vetsci9020062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/25/2022] [Accepted: 01/30/2022] [Indexed: 12/01/2022] Open
Abstract
Sparganosis is a neglected zoonotic parasitic disease that poses huge threats to humans worldwide. Snakes play an important role in sparganosis transmission because they are the most common second intermediate hosts for Spirometra parasites. However, the population genetics of Spirometra isolates from snakes is currently not well studied in China. The present study was performed to explore the molecular characteristics and phylogenetic analysis of Spirometra tapeworms from different species of snakes in Hunan Province. This study obtained 49 Spirometra isolates from 15 geographical areas in Hunan Province, Central China. Subsequently, the 18S and 28S ribosomal DNA (rDNA) fragments were amplified from the isolated parasites, and their sequences were analyzed to assess their genetic diversity. Phylogenetic analyses were performed using the maximum likelihood algorithm. The results showed that sequence variations among these isolates were 0–2.3% and 0–0.1% for 18S and 28S rDNA, respectively. The phylogenetic analysis showed that all Spirometra isolates from Hunan Province were clustered into the same branch with Spirometra erinaceieuropaei isolated from other areas (China, Vietnam, Australia). Moreover, the phylogenetic trees revealed that Spirometra is closely related to Adenocephalus, Pyramicocephalus, Ligula, Dibothriocephalus, Schistocephalus, and Diphyllobothrium. The Spirometra isolates of different hosts/regions in Hunan Province are not host segregated or geographically isolated, and support for the taxonomic status of Spirometra tapeworms in China has been added. These results provide reference values for future accurate identification and taxonomic status of Spirometra tapeworms in China.
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Affiliation(s)
- Shu-Yu Chen
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (S.-Y.C.); (T.-F.G.); (J.-L.H.); (F.L.); (W.-C.L.); (X.-R.X.); (Y.-S.L.)
| | - Teng-Fang Gong
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (S.-Y.C.); (T.-F.G.); (J.-L.H.); (F.L.); (W.-C.L.); (X.-R.X.); (Y.-S.L.)
| | - Jun-Lin He
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (S.-Y.C.); (T.-F.G.); (J.-L.H.); (F.L.); (W.-C.L.); (X.-R.X.); (Y.-S.L.)
| | - Fen Li
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (S.-Y.C.); (T.-F.G.); (J.-L.H.); (F.L.); (W.-C.L.); (X.-R.X.); (Y.-S.L.)
| | - Wen-Chao Li
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (S.-Y.C.); (T.-F.G.); (J.-L.H.); (F.L.); (W.-C.L.); (X.-R.X.); (Y.-S.L.)
| | - Li-Xing Xie
- Orient Science & Technology College, Hunan Agriculture University, Changsha 410128, China;
| | - Xin-Rui Xie
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (S.-Y.C.); (T.-F.G.); (J.-L.H.); (F.L.); (W.-C.L.); (X.-R.X.); (Y.-S.L.)
| | - Yi-Song Liu
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (S.-Y.C.); (T.-F.G.); (J.-L.H.); (F.L.); (W.-C.L.); (X.-R.X.); (Y.-S.L.)
| | - Ying-Fang Zhou
- Orient Science & Technology College, Hunan Agriculture University, Changsha 410128, China;
- Correspondence: (Y.-F.Z.); (W.L.)
| | - Wei Liu
- Research Center for Parasites & Vectors, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (S.-Y.C.); (T.-F.G.); (J.-L.H.); (F.L.); (W.-C.L.); (X.-R.X.); (Y.-S.L.)
- Hunan Provincial the Key Laboratory of Protein Engineering in Animal Vaccine, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Correspondence: (Y.-F.Z.); (W.L.)
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