Cited by 79Parasitic Diseases Research and TreatmentInsect symbiosis and bacterial influencesParasites and Host Interactions

Immunohistochemical/immunogold detection and distribution of the endosymbiont Wolbachia of Dirofilaria immitis and Brugia pahangi using a polyclonal antiserum raised against WSP (Wolbachia surface protein)

Kramer, L., Passeri, B., Corona, S., Simoncini, L., Casiraghi, M.·2003·Parasitology Research

Abstract

Intracellular bacteria in filarial nematodes were described as early as the 1970s, yet it was only with the work on Dirofilaria immitis, the agent of canine and feline heartworm disease, that these microorganisms were identified as belonging to Wolbachia, a genus known for encompassing bacteria infecting insects and other arthropods. The implications for the presence of intracellular bacteria in filarial nematodes is now the subject of intense research, particularly regarding their role in the immunology and pathogenesis of disease in infected humans and animals and as a possible target for therapy. Here, the authors report results on the immunohistochemical and immunogold staining of Wolbachia in D. immitis and Brugia pahangi using polyclonal antibodies raised against the recombinant Wolbachia surface protein (WSP). The bacteria were present in the lateral hypodermal chords of both male and female worms and in the reproductive tract of adult females (oocytes, morulae, microfilariae). In D. immitis and B. pahangi from animals treated with tetracycline, positive staining was observed in the lateral chords of adult males and females, but was absent from the oocytes and morulae. These results indicate that Wolbachia endosymbionts can be identified immunohistochemically with anti-WSP polyclonal antibodies, that their distribution matches that already described for Wolbachia of other filarial worms, and that antibiotic treatment may impede the vertical transmission of these bacteria. Unequivocal detection of Wolbachia is essential for the study of this symbiont, in particular to monitor the effects of antibiotic treatment on worms. The use of a specific marker for bacteria in their nematode hosts represents an extremely useful tool in evaluating the pathogenic role and the effect of antibiotic treatment on these potential targets in the control of filarial disease.

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Crossref · 10.1007/s00436-002-0765-6

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  • Wolbachia is present in multiple tissues and immune cells of dogs with heartworm disease, as shown by immunohistochemical staining.

    “immunohistochemical staining with polyclonal antibodies against WSP has revealed the presence of Wolbachia in multiple tissues and immune cells of dogs with heartworm disease (215,216,288).”

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Authors
Kramer, L., Passeri, B., Corona, S., Simoncini, L., & Casiraghi, M.
Affiliations
  • University of Parma (IT)
  • University of Pavia (IT)
  • University of Milan (IT)
Corresponding author
Kramer, L.
Venue
Parasitology Research
Published
2003-03
Volume
89
Issue
5
Pages
381-386
ISSN
  • 0044-3255 (ISSN-L)
  • 0932-0113
  • 1432-1955
OpenAlex
W245877667
Cited by
79
References
25
Citations by year
2026: 2 · 2025: 2 · 2023: 3 · 2022: 2 · 2021: 1 · 2020: 5 · 2019: 1 · 2018: 1 · 2017: 3 · 2016: 2 · 2014: 4 · 2013: 1 · 2012: 4
FWCI
3.30
Type
journal article
Language
en
Open access
closed
Locations
  • Parasitology Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ministero dell’Istruzione, dell’Università e della Ricerca
Topics
  • Health Sciences › Medicine › Infectious Diseases › Parasitic Diseases Research and Treatment
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect symbiosis and bacterial influences
  • Life Sciences › Immunology and Microbiology › Parasitology › Parasites and Host Interactions
Keywords
Wolbachia, Dirofilaria immitis, Brugia pahangi, Wolbachia surface protein, endosymbionts, filarial nematodes, intracellular bacteria, vertical transmission, tetracycline therapy, polyclonal antibodies, immunogold labeling, heartworm disease
MeSH terms
Animals, Antibodies, Bacterial, Antigens, Bacterial, Bacterial Outer Membrane Proteins, Dirofilaria immitis, Dirofilariasis, Dogs, Doxycycline, Female, Gerbillinae, Immunohistochemistry, Male, Symbiosis, Microscopy, Immunoelectron, Brugia pahangi, Wolbachia

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