Molecular Characterisation and Functions of Fis1 and PDCD6 Genes from Echinococcus granulosus.
Ning WangJiafei ZhanCheng GuoChunyan LiNengxing ShenXiaobin GuYue XieXuerong PengGuangyou YangPublished in: International journal of molecular sciences (2018)
Cystic echinococcosis, a parasitic zoonosis that causes significant economic losses and poses a threat to public health, is caused by larvae of the tapeworm Echinococcus granulosus. Infection causes infertile cysts in intermediate hosts that cannot produce protoscoleces (PSCs) or complete the life cycle. Herein, we cloned, expressed, and characterised mitochondrial fission protein 1 (Eg-Fis1) and programmed cell death protein 6 (Eg-PDCD6) from E. granulosus, and explored their functions related to infertile cysts. Eg-Fis1 and Eg-PDCD6 encode putative 157 and 174 residue proteins, respectively, and Western blotting indicated good reactogenicity for both. Eg-Fis1 and Eg-PDCD6 were ubiquitously distributed in all stages of E. granulosus. Furthermore, mRNAs of Eg-Fis1 and Eg-PDCD6 were upregulated following H₂O₂ treatment which induced apoptosis in PSCs. To investigate the regulation of apoptosis in response to oxidative stress, RNA interference (RNAi) and terminal deoxynucleotidyl transferase dUTP nick-end labelling (TUNEL) assays were performed. The apoptotic rate of the Eg-Fis1 RNAi group was significantly lower than non-interference group, but there was no such difference for Eg-PDCD6. In conclusion, Eg-Fis1 promotes apoptosis induced by oxidative stress, whereas Eg-PDCD6 does not appear to be a key regulator of apoptosis.
Keyphrases
- oxidative stress
- induced apoptosis
- endoplasmic reticulum stress
- public health
- cell death
- dna damage
- diabetic rats
- life cycle
- ischemia reperfusion injury
- cell cycle arrest
- signaling pathway
- type diabetes
- genome wide
- polycystic ovary syndrome
- high throughput
- amino acid
- protein protein
- zika virus
- south africa
- transcription factor
- binding protein
- insulin resistance
- single molecule
- drug induced
- nucleic acid