Isolation of Nippostrongylus brasiliensis Larvae from Mouse Lungs   

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Original research article

A brief version of this protocol appeared in:
Nature Communications
May 2015


The rodent parasite Nippostrongylus brasiliensis (N. brasiliensis) models the salient features of helminth infection including skin penetration, migration from tissues to lung, maturation and egg production in the gut. As a potent activator of systemic and mucosal Th2 immune responses, Nippostrongylus brasiliensis has been extensively used to study host protective immunity and in vivo regulation of Th2 immune response. Six to eight week old C57Bl/6J, Balb/c mice or any other strains are suitable, as all are susceptible to infection. Inocula of 150-650 L3 larvae can be administered by subcutaneous injection, but for greatest consistency a dose of 550 L3 larvae is routinely used for experimental purposes. We have optimized three different protocols for the isolation of larvae from the lungs of mice infected with the L3 stage of Nippostrongylus brasiliensis. Larvae can migrate to the lung between 18-60 h post inoculation from any site in the body. The numbers of larvae appearing in the lung peaks at 48 h after inoculation and it is recommended that isolation/harvesting be performed at 48 h for greatest consistency of each harvest method:

Copyright: © 2016 The Authors; exclusive licensee Bio-protocol LLC.
How to cite: Camberis, M., Bouchery, T. and Gros, G. L. (2016). Isolation of Nippostrongylus brasiliensis Larvae from Mouse Lungs. Bio-protocol 6(4): e1736. DOI: 10.21769/BioProtoc.1736.

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