Profiling of gender-regulated gene transcripts in the filarial nematode Brugia malayi by cDNA oligonucleotide array analysis

Li, Ben-Wen and Rush, Amy C. and Crosby, Seth D. and Warren, Wesley and Williams, Steven A. and Mitreva, Makedonka and Weil, Gary J. (2005) Profiling of gender-regulated gene transcripts in the filarial nematode Brugia malayi by cDNA oligonucleotide array analysis. Molecular & Biochemical Parasitology, 143. pp. 49-57.

[img]
Preview
Text
Profiling of gender-regulated gene transcripts in the filarial nematode Brugia malayi by cDNA oligonucleotide array analysis20.pdf

Download (184Kb) | Preview
Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

Microarray technology permits high-throughput comparisons of gene expression in different parasite stages or sexes and has been used widely. We report the first use of this technology for analysis of gene expression in filarial male and female worms. The slide array (comprised of 65-mer oligos representing 3569 EST clusters) was spotted with sequences selected from the extensive Brugia malayi EST database (http://zeldia.cap.ed.ac.uk/fgn/brugia.php). Arrays were hybridized with Cy dye labeled male and female cDNA. The experimental design included both biological and technical (dye-flip) replicates. The data were normalized for background and probe intensity, and the relative abundance of hybridized cDNA for each spot was determined. Genes showing two-fold or greater differences with P < 0.05 were considered gender-regulated candidates. One thousand one hundred and seventy of 2443 clusters (48%) with signals above threshold in at least one sex were considered as gender-regulated gene candidates. This included 520 and 650 clusters up-regulated in male and female worms, respectively. Fifty of 53 (94%) gender-regulated candidate genes identified by microarray analysis were confirmed by real-time RT-PCR. Approximately 61% of gender-regulated genes had significant similarity to known genes in other organisms such as Caenorhabditis elegans. Many C. elegans homologues of these genes have been reported to have reproductive phenotypes (sterility or abnormal embryo development) by RNA interference. This study has provided the first broad view of gender-regulated gene expression in B. malayi; this should lead to improved understanding of reproduction in filarial nematodes. More generally, this approach holds great promise as a means of studying stage-specific or tissue-specific gene expression in parasitic nematodes.

Item Type: Article
Uncontrolled Keywords: Microarray; Brugia; Filarial; Gene expression; Reproduction; Nematode
Subjects: Medical and Health Sciences > Other medical sciences
Divisions: Faculty of Medical Science
Depositing User: Marija Kalejska
Date Deposited: 30 Nov 2012 10:33
Last Modified: 04 Jun 2013 09:01
URI: http://eprints.ugd.edu.mk/id/eprint/2563

Actions (login required)

View Item View Item