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Engineered Resistance to
Development in Transgenic


Transposon-mediated transformation was used to produce Anopheles

stephensi
that express single-chain antibodies (scFvs) designed to

target the human malaria parasite, Plasmodium falciparum. The

scFvs, m1C3, m4B7, and m2A10, are derived from mouse monoclonal antibodies that

inhibit either ookinete invasion of the midgut or sporozoite invasion of

salivary glands. The scFvs that target the parasite surface, m4B7 and m2A10,

were fused to an Anopheles gambiae antimicrobial peptide,

Cecropin A. Previously-characterized Anopheles cis-acting DNA

regulatory elements were included in the transgenes to coordinate scFv

production with parasite development. Gene amplification and immunoblot analyses

showed promoter-specific increases in transgene expression in blood-fed females.

Transgenic mosquito lines expressing each of the scFv genes had significantly

lower infection levels than controls when challenged with P.

falciparum
.


Vyšlo v časopise: Engineered Resistance to Development in Transgenic. PLoS Pathog 7(4): e32767. doi:10.1371/journal.ppat.1002017
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.ppat.1002017

Souhrn

Transposon-mediated transformation was used to produce Anopheles

stephensi
that express single-chain antibodies (scFvs) designed to

target the human malaria parasite, Plasmodium falciparum. The

scFvs, m1C3, m4B7, and m2A10, are derived from mouse monoclonal antibodies that

inhibit either ookinete invasion of the midgut or sporozoite invasion of

salivary glands. The scFvs that target the parasite surface, m4B7 and m2A10,

were fused to an Anopheles gambiae antimicrobial peptide,

Cecropin A. Previously-characterized Anopheles cis-acting DNA

regulatory elements were included in the transgenes to coordinate scFv

production with parasite development. Gene amplification and immunoblot analyses

showed promoter-specific increases in transgene expression in blood-fed females.

Transgenic mosquito lines expressing each of the scFv genes had significantly

lower infection levels than controls when challenged with P.

falciparum
.


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Štítky
Hygiena a epidemiológia Infekčné lekárstvo Laboratórium

Článok vyšiel v časopise

PLOS Pathogens


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