Mosquito microarrays

Microarrays experiments reveal changes in the mosquito transcriptome in response to infection and stress.

Written byJonathan Weitzman
| 1 min read

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Genomic analysis ofAnopheles gambiae may provide insights into the role of the mosquito immune system in Plasmodium infection and the transmission of malaria. In the 25 June Proceedings of the National Academy of Sciences George Dimopoulos and colleagues report the use of first-generation cDNA microarrays for expression profiling analysis of the mosquito defense system (Proc Natl Acad Sci USA 2001, 99:8814-8819).

The microarrays contained 3840 EST clones. They used a hemocyte-like cell line, 4a-3B, that had been challenged with Gram-positive or Gram-negative bacteria or treated with hydrogen peroxide. Expression profile analysis grouped the genes into clusters related to immune or oxidative-stress responses, or both. Microarray analysis of whole mosquitoes infected with bacteria or with malaria parasites revealed similarities in the gene expression changes in vivo, as well as distinct groups of genes for each response.

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