論文

査読有り 国際誌
2018年11月8日

Induction of intracellular ferritin expression in embryo-derived Ixodes scapularis cell line (ISE6).

Scientific reports
  • Hernandez EP
  • ,
  • Kusakisako K
  • ,
  • Talactac MR
  • ,
  • Galay RL
  • ,
  • Yoshii K
  • ,
  • Tanaka T

8
1
開始ページ
16566
終了ページ
16566
記述言語
英語
掲載種別
DOI
10.1038/s41598-018-34860-3

Iron is a very important nutrient for cells; however, it could also cause fatal effects because of its capability to trigger oxidative stress. Due to high exposure to iron from their blood diet, ticks make use of several mechanisms to cope up with oxidative stress. One mechanism is iron sequestration by ferritin and its control protein (IRP). Since the IRP activity is dependent on the ferrous iron concentration, we tried to induce intracellular ferritin (FER1) protein expression by exposing Ixodes scapularis embryo-derived cell line (ISE6) to different concentrations of ferrous sulphate at different time points. We were able to induce FER1 protein after exposure to 2 mM of ferrous sulphate for 48 h, as observed in both Western blotting and indirect immunofluorescent antibody tests. This could indicate that the FER1 produced could be a product of the release of IRPs from the FER1 mRNA leading to its translation. The RNA interference of FER1, through the transfection of dsRNA, led to an increase in mortality and decrease in the cellular proliferation of ISE6 cells. Overall, ISE6 cells could be a good tool in further understanding the mechanism of FER1 action, not just in Ixodes ticks but in other tick species as well.

リンク情報
DOI
https://doi.org/10.1038/s41598-018-34860-3

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