Effects of hormone agonists on Sf9 cells, proliferation and cell cycle arrest.

Effects of hormone agonists on Sf9 cells, proliferation and cell cycle arrest.
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DOI:
10.1371/journal.pone.0025708
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Le Goff G
Le Goff G
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Giraudo M;Califano J;Hilliou F;Tran T;Taquet N;Feyereisen R;Le Goff G

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甲氧虫酰肼和甲氧虫啉是两种杀虫剂,它们模仿了控制昆虫生长和发育的主要激素(20-羟基蜕皮激素和保幼激素)的作用。我们研究了它们对草地贪夜蛾 Sf9 细胞系的影响。在细胞活力测试中,甲氧虫酰肼比甲氧普林毒性更大,并且在抑制细胞增殖方面更有效。细胞生长停滞发生在甲氧苯酰肼处理后的 G2/M 期,而在甲氧虫酰肼处理后的 G1 期则更为温和。进行微阵列实验和实时定量PCR来追踪核受体超气门和蜕皮激素受体的表达,以了解这些激素激动剂的分子作用。甲氧虫酰肼处理后有 26 个基因出现差异表达,甲氧苯酰肼处理后有 55 个基因出现差异表达,两种处理之间没有共同基因。我们的结果表明 Sf9 细胞中有两种不同的信号传导途径。
Methoxyfenozide and methoprene are two insecticides that mimic the action of the main hormones involved in the control of insect growth and development, 20-hydroxyecdysone and juvenile hormone. We investigated their effect on the Spodoptera frugiperda Sf9 cell line. Methoxyfenozide was more toxic than methoprene in cell viability tests and more potent in the inhibition of cellular proliferation. Cell growth arrest occurred in the G2/M phase after a methoprene treatment and more modestly in G1 after methoxyfenozide treatment. Microarray experiments and real-time quantitative PCR to follow the expression of nuclear receptors ultraspiracle and ecdysone receptor were performed to understand the molecular action of these hormone agonists. Twenty-six genes were differentially expressed after methoxyfenozide treatment and 55 genes after methoprene treatment with no gene in common between the two treatments. Our results suggest two different signalling pathways in Sf9 cells.
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