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Nippostrongylus brasiliensis: further properties of antibody-damaged worms and induction of comparable damage by maintaining worms in vitro

Published online by Cambridge University Press:  06 April 2009

R. J. Love
Affiliation:
Division of Parasitology, National Institute for Medical Research, Mill Hill, London NW7 1AA
Bridget M. Ogilvie
Affiliation:
Division of Parasitology, National Institute for Medical Research, Mill Hill, London NW7 1AA
Diane J. McLaren
Affiliation:
Division of Parasitology, National Institute for Medical Research, Mill Hill, London NW7 1AA

Extract

When adult Nippostrongylus brasiliensis were maintained in vitro they became damaged. Using the criteria of ultrastructural morphology, acetylcholinesterase isoenzyme pattern and the behaviour of the worms after transfer to a normal rat, this damage appeared to be similar to that produced by the in vivo action of antibodies.

Antibodies were shown to be responsible for the anterior migration of adult worms which occurs during primary infections in mature rats and in the prolonged infections seen in lactating and immature rats.

Antibody damaged worms and worms unaffected by antibodies were equally able to stimulate the immune response required for worm expulsion. Apparently antibody damage is not required for the initiation of the second immune component necessary for expulsion of this parasite.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1975

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