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A hookworm allergen which strongly resembles calreticulin
D I Pritchard1, A Brown, G Kasper
1School of Biology, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
Parasite Immunology
|September 4, 1999
Summary
Researchers identified a hookworm allergen, calreticulin, using immunoglobulin E-rich plasma from infected patients. This finding sheds light on the host-parasite relationship in Necator americanus infections.
Area of Science:
- Parasitology
- Immunology
- Molecular Biology
Background:
- Necator americanus is a significant human hookworm parasite.
- Hookworm infections elicit an immunoglobulin E (IgE) immune response.
- Identifying parasite allergens is crucial for understanding host-parasite interactions.
Purpose of the Study:
- To identify novel hookworm allergens from Necator americanus.
- To characterize the identified allergen, calreticulin.
- To investigate potential roles of hookworm calreticulin in host-parasite interactions.
Main Methods:
- Screening of an adult N. americanus cDNA library using IgE-rich plasma from infected patients.
- Expression of the identified allergen in Escherichia coli.
- Serological cross-reactivity testing between recombinant hookworm calreticulin and host components.
Main Results:
- Identification of calreticulin as a hookworm allergen.
- Successful expression of recombinant hookworm calreticulin.
- Limited serological cross-reactivity observed between hookworm calreticulin and host components.
Conclusions:
- Calreticulin is a potential hookworm allergen involved in N. americanus infections.
- The study provides insights into the molecular basis of the host-parasite relationship.
- Further research is warranted to explore the functional significance of hookworm calreticulin.