Allergic Responses Induced by a Fungal Biopesticide Metarhizium anisopliae and House Dust Mite Are Compared in a Mouse Model

Biopesticides can be effective in controlling their target pest. However, research regarding allergenicity and asthma development is limited. We compared the ability of fungal biopesticide Metarhizium anisopliae (MACA) and house dust mite (HDM) extracts to induce allergic responses in BALB/c mice....

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Main Authors: Marsha D. W. Ward, Yong Joo Chung, Lisa B. Copeland, Donald L. Doerfler
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Journal of Toxicology
Online Access:http://dx.doi.org/10.1155/2011/360805
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author Marsha D. W. Ward
Yong Joo Chung
Lisa B. Copeland
Donald L. Doerfler
author_facet Marsha D. W. Ward
Yong Joo Chung
Lisa B. Copeland
Donald L. Doerfler
author_sort Marsha D. W. Ward
collection DOAJ
description Biopesticides can be effective in controlling their target pest. However, research regarding allergenicity and asthma development is limited. We compared the ability of fungal biopesticide Metarhizium anisopliae (MACA) and house dust mite (HDM) extracts to induce allergic responses in BALB/c mice. The extracts were administered by intratracheal aspiration at doubling doses (2.5–80 𝜇g protein) 4X over a four-week period. Three days after the last exposure, serum and bronchoalveolar lavage fluid (BALF) were collected. The extracts' relative allergenicity was evaluated based on response robustness (lowest significant dose response compared to control (0 𝜇g)). MACA induced a more robust serum total IgE response than HDM. However, in the antigen-specific IgE assay, a similar dose of both MACA and HDM was required to achieve the same response level. Our data suggest a threshold dose of MACA for allergy induction and that M. anisopliae may be similar to HDM in allergy induction potential.
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publishDate 2011-01-01
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series Journal of Toxicology
spelling doaj-art-6295a6b217b5469bbcc82708706e82e62025-02-03T01:03:30ZengWileyJournal of Toxicology1687-81911687-82052011-01-01201110.1155/2011/360805360805Allergic Responses Induced by a Fungal Biopesticide Metarhizium anisopliae and House Dust Mite Are Compared in a Mouse ModelMarsha D. W. Ward0Yong Joo Chung1Lisa B. Copeland2Donald L. Doerfler3National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, 109 T. W. Alexander Drive, MD B105-02, Research Triangle Park, NC 27711, USANational Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, 109 T. W. Alexander Drive, MD B105-02, Research Triangle Park, NC 27711, USANational Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, 109 T. W. Alexander Drive, MD B105-02, Research Triangle Park, NC 27711, USANational Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, 109 T. W. Alexander Drive, MD B105-02, Research Triangle Park, NC 27711, USABiopesticides can be effective in controlling their target pest. However, research regarding allergenicity and asthma development is limited. We compared the ability of fungal biopesticide Metarhizium anisopliae (MACA) and house dust mite (HDM) extracts to induce allergic responses in BALB/c mice. The extracts were administered by intratracheal aspiration at doubling doses (2.5–80 𝜇g protein) 4X over a four-week period. Three days after the last exposure, serum and bronchoalveolar lavage fluid (BALF) were collected. The extracts' relative allergenicity was evaluated based on response robustness (lowest significant dose response compared to control (0 𝜇g)). MACA induced a more robust serum total IgE response than HDM. However, in the antigen-specific IgE assay, a similar dose of both MACA and HDM was required to achieve the same response level. Our data suggest a threshold dose of MACA for allergy induction and that M. anisopliae may be similar to HDM in allergy induction potential.http://dx.doi.org/10.1155/2011/360805
spellingShingle Marsha D. W. Ward
Yong Joo Chung
Lisa B. Copeland
Donald L. Doerfler
Allergic Responses Induced by a Fungal Biopesticide Metarhizium anisopliae and House Dust Mite Are Compared in a Mouse Model
Journal of Toxicology
title Allergic Responses Induced by a Fungal Biopesticide Metarhizium anisopliae and House Dust Mite Are Compared in a Mouse Model
title_full Allergic Responses Induced by a Fungal Biopesticide Metarhizium anisopliae and House Dust Mite Are Compared in a Mouse Model
title_fullStr Allergic Responses Induced by a Fungal Biopesticide Metarhizium anisopliae and House Dust Mite Are Compared in a Mouse Model
title_full_unstemmed Allergic Responses Induced by a Fungal Biopesticide Metarhizium anisopliae and House Dust Mite Are Compared in a Mouse Model
title_short Allergic Responses Induced by a Fungal Biopesticide Metarhizium anisopliae and House Dust Mite Are Compared in a Mouse Model
title_sort allergic responses induced by a fungal biopesticide metarhizium anisopliae and house dust mite are compared in a mouse model
url http://dx.doi.org/10.1155/2011/360805
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