Specific humoral response of hosts with variable schistosomiasis susceptibility

Driguez, Patrick, McWilliam, Hamish E.G., Gaze, Soraya, Piedrafita, David, Pearson, Mark S., Nakajima, Rie, Duke, Mary, Trieu, Angela, Doolan, Denise L., Cardoso, Fernanda C., Jasinskas, Algis, Gobert, Geoffrey N., Felgner, Philip L., Loukas, Alex, Meeusen, Els, and McManus, Donald P. (2016) Specific humoral response of hosts with variable schistosomiasis susceptibility. Immunology and Cell Biology, 94. pp. 52-65.

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The schistosome blood flukes are some of the largest global causes of parasitic morbidity. Further study of the specific antibody response during schistosomiasis may yield the vaccines and diagnostics needed to combat this disease. Therefore, for the purposes of antigen discovery, sera and antibody-secreting cell (ASC) probes from semi-permissive rats and sera from susceptible mice were used to screen a schistosome protein microarray. Following Schistosoma japonicum infection, rats had reduced pathology, increased antibody responses and broader antigen recognition profiles compared with mice. With successive infections, rat global serological reactivity and the number of recognized antigens increased. The local antibody response in rat skin and lung, measured with ASC probes, increased after parasite migration and contributed antigen-specific antibodies to the multivalent serological response. In addition, the temporal variation of anti-parasite serum antibodies after infection and reinfection followed patterns that appear related to the antigen driving the response. Among the 29 antigens differentially recognized by the infected hosts were numerous known vaccine candidates, drug targets and several S. japonicum homologs of human schistosomiasis resistance markers—the tegument allergen-like proteins. From this set, we prioritized eight proteins that may prove to be novel schistosome vaccine and diagnostic antigens.

Item ID: 40136
Item Type: Article (Research - C1)
ISSN: 1440-1711
Funders: National Health and Medical Research Council (NHMRC)
Date Deposited: 19 Aug 2015 02:06
FoR Codes: 32 BIOMEDICAL AND CLINICAL SCIENCES > 3207 Medical microbiology > 320704 Medical parasitology @ 100%
SEO Codes: 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920109 Infectious Diseases @ 50%
92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920412 Preventive Medicine @ 50%
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