RNA interference of cytosolic leucine aminopeptidase reduces fecundity in the hard tick, Haemaphysalis longicornis

Takeshi Hatta, Rika Umemiya, Min Liao, Haiyan Gong, Thasaneeya Harnnoi, Miho Tanaka, Takeharu Miyoshi, Damdinsuren Boldbaatar, Badgar Battsetseg, Jinlin Zhou, Xuenan Xuan, Naotoshi Tsuji, Demar Taylor, Kozo Fujisaki

研究成果: ジャーナルへの寄稿記事

抜粋

Ticks are effective vectors of pathogens because of their blood feeding and high fecundity. This high fecundity is related to the size of the blood meal. Therefore, knowledge of how blood proteins are degraded and converted to proteins, including yolk protein, is important for the development of ways to inhibit the utilization of blood proteins by ticks. RNA interference (RNAi) is becoming a powerful post-transcriptional gene silencing technique that provides insight into gene function. We constructed a double-stranded RNA (dsRNA) based on a previously cloned Haemaphysalis longicornis leucine aminopeptidase (HlLAP) gene to reevaluate the biological role in tick blood digestion. Gene specific transcriptional, translational, and functional disruptions were achieved by the introduction of dsRNA into the ticks. Significantly delayed onset of egg-laying and reduced egg oviposition resulted from the RNAi for the HlLAP gene. These results suggest that HlLAP actually works as a blood digestive enzyme and affects tick fecundity via unknown mechanisms. The reduction of egg oviposition may be caused by a decrease in nutrients, especially free amino acids generated by HlLAP, from the blood meal. This is the first report of an impact on tick reproduction caused by gene silencing of a blood digestion-related molecule.

元の言語英語
ページ(範囲)847-54
ページ数8
ジャーナルParasitology Research
100
発行部数4
DOI
出版物ステータス出版済み - 3 2007

フィンガープリント RNA interference of cytosolic leucine aminopeptidase reduces fecundity in the hard tick, Haemaphysalis longicornis' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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    Hatta, T., Umemiya, R., Liao, M., Gong, H., Harnnoi, T., Tanaka, M., Miyoshi, T., Boldbaatar, D., Battsetseg, B., Zhou, J., Xuan, X., Tsuji, N., Taylor, D., & Fujisaki, K. (2007). RNA interference of cytosolic leucine aminopeptidase reduces fecundity in the hard tick, Haemaphysalis longicornis. Parasitology Research, 100(4), 847-54. https://doi.org/10.1007/s00436-006-0336-3