ArticleInfectious diseases of poverty2017
The genetic variation of Angiostrongylus cantonensis in the People's Republic of China.
Article in Infectious diseases of poverty, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed.
- Albendazole-doxycycline combination therapy alleviates MRI- and pathology-evident neuroinflammation and restores IL-33/GFAP balance in mouse neuroangiostrongyliasis.Parasites & vectors · 2026Article
- Evidence of new endemic foci of the foodborne helminths Angiostrongylus spp. in rats in selected communities in the Philippines.Parasites & vectors · 2025Article
- Insights into the genetic diversity ofFood and waterborne parasitology · 2024Review
- Immunodiagnostic Detection of Angiostrongylus cantonensis Exposure on Hawaii Island Using Isogeographic 31-kDa Antigen.The American journal of tropical medicine and hygiene · 2023Article
- In the Dawn of an Early Invasion: No Genetic Diversity ofPathogens (Basel, Switzerland) · 2023Article
- The Global Spread Pattern of Rat Lungworm Based on Mitochondrial Genetics.Pathogens (Basel, Switzerland) · 2023Article
- Article
- Endemic lizardParasitology · 2022Article
- Using cerebrospinal fluid to confirmCurrent research in parasitology & vector-borne diseases · 2021Article
- Downregulated RPS-30 in Angiostrongylus cantonensis L5 plays a defensive role against damage due to oxidative stress.Parasites & vectors · 2020Article
- Angiostrongylus cantonensis Galectin-1 interacts with Annexin A2 to impair the viability of macrophages via activating JNK pathway.Parasites & vectors · 2020Article
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5 authors.
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Abstract
backgroundThe People's Republic of China (P.R. China) is the presumptive home range of the rat lungworm Angiostrongylus cantonensis, a major aetiological agent of human eosinophilic meningitis. We present a study of the genetic variation of A. cantonensis in P.R. China. Our aim was to deepen the current knowledge pertaining to its origin and global spread from a molecular perspective.
methodsAdult A. cantonensis were collected in the frame of a national survey and identified based on morphological criteria. Polymerase chain reaction (PCR) was employed to amplify the target DNA sequences (cytochrome c oxidase subunit I (cox1), nicotinamide adenine dinucleotide dehydrogenase subunit 1 (nad1) and internal transcribed spacer (ITS)). The PCR product of cox1 was directly submitted to sequencing, while clone sequencing was used for nad1 and ITS. The identity of the samples was verified by comparing the sequences to those of accepted A. cantonensis specimens. The specific composition of substitutions in each gene was analysed, and the genotypes were compared based on the complete cox1, nad1 and ITS genes.
resultsWe characterised the complete mitochondrial genes cox1 and nad1 of 130 specimens and obtained 357 nuclear sequences containing two complete ITS (ITS1 and ITS2) and 5.8S rRNA of the same samples. All specimens were genetically confirmed as A. cantonensis. Two major groups (i.e. I and II) were identified according to the phylogeny of cox1 sequences. Group I could be further categorised into six distinct clades. Almost half of the specimens (47.7%) belong to the clade Ia and 22.3% to the group II. The former was widely distributed across the study region. A variable number of repeat units in three microsatellites was observed, resulting in considerable length variation in ITS. Intragenomic variation of ITS sequences was found in a large proportion of the samples. Genotyping showed a striking difference between mitochondrial DNA and ITS.
conclusionsOur results demonstrate that A. cantonensis is the only rat lungworm species in P.R. China and shows high genetic diversity. Results of diversity and genotyping of A. cantonensis can be impacted by the sequencing strategy and biomarker. Although ITS may be a valuable marker for interspecific identification, it is not suitable for studying the intraspecific variation of A. cantonensis due to its high intragenomic variation and current challenges for direct sequencing.
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