Dataset Information

Effect of ATP and Bax on the apoptosis of Eimeria tenella host cells.

ABSTRACT:

Background

Eimeria tenella (E. tenella) is a species of Eimeria that causes haemorrhagic caecal coccidiosis, resulting in major economic losses in the global poultry industry. After E. tenella infection, the amount of ATP and Bax in host cells showed highly significant changes. Therefore, it is necessary to investigate the effects of ATP and Bax on the apoptosis of E. tenella host cells.

Results

The ATP-treated group and the V5-treated group had higher E. tenella infection rates than the untreated group at 24, 48, 72, 96, and 120 h after infection with E. tenella. The results of flow cytometry showed that compared with the control group, the mitochondrial permeability transition pore (MPTP) opening in the untreated group was highly significantly increased (P?ConclusionsATP and Bax play important roles in regulating the apoptosis of E. tenella host cells.

SUBMITTER: Xu Z

PROVIDER: S-EPMC5745796 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature

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Publications

Effect of ATP and Bax on the apoptosis of Eimeria tenella host cells.

Xu Zhiyong Z Zheng Mingxue M Zhang Li L Zhang Xuesong X Zhang Yan Y Cui Xiaozhen X Gong Xin X Xi Rou R Bai Rui R

BMC veterinary research 20171228 1

<h4>Background</h4>Eimeria tenella (E. tenella) is a species of Eimeria that causes haemorrhagic caecal coccidiosis, resulting in major economic losses in the global poultry industry. After E. tenella infection, the amount of ATP and Bax in host cells showed highly significant changes. Therefore, it is necessary to investigate the effects of ATP and Bax on the apoptosis of E. tenella host cells.<h4>Results</h4>The ATP-treated group and the V5-treated group had higher E. tenella infection rates t ...[more]

PMID: 29282063

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Project description:BackgroundChicken coccidiosis, a disease caused by seven species of Eimeria (Apicomplexa: Coccidia), inflicts severe economic losses on the poultry industry. Eimeria tenella is the one of the most virulent species pathogenic to chickens. Many parasitic protozoans are parasitised by double-stranded (ds) RNA viruses, and the influence of protozoan viruses on parasitic protozoans has been extensively reported. E. tenella RNA virus 1 (Etv) was identified in E. tenella, and the complete genome sequence of Etv was analysed. Here, we screened Etv-RNA-dependent RNA polymerase (RDRP)-interacting host protein E. tenella ovarian tumour (OTU) protein-like cysteine protease (Et-OTU) using a yeast two-hybrid system with pGBKT7-RDRP plasmid serving as bait. A previous study demonstrated that Et-OTU could regulate the telomerase activity of E. tenella, indicating that Et-OTU affects E. tenella proliferation. However, whether Etv-RDRP affects the molecular biological characteristics of E. tenella by interacting with OTU remains unclear.ResultsWe obtained seven positive clones from the initial screen, and six of the seven preys were identified as false-positives. Finally, we identified an RDRP-associated protein predicted to be an E. tenella OTU protein. A α-galactosidase assay showed that the bait vector did not activate the GAL4 reporter gene, indicating no autoactivation activity from the RDRP bait fusion. Pull-down and co-immunoprecipitation assays verified the interaction between Et-OTU and Etv-RDRP both intracellularly and extracellularly. Additionally, Et-OTU was able to deconjugate K48- and K6-linked di-ubiquitin (di-Ub) chains in vitro but not K63-, K11-, K29-, or K33-linked di-Ub chains. The C239A and H351A mutations eliminated the deubiquitinase (DUB) activity of Et-OTU, whereas the D236A mutation did not. Additionally, when combined with RDRP, the DUB activity of Et-OTU towards K48- and K6-linked chains was significantly enhanced.ConclusionEtv-RDRP interacts with Et-OTU both intracellularly and extracellularly. Etv-RDRP enhances the hydrolysis of Et-OTU to K6- or K48-linked ubiquitin chains. This study lays the foundation for further research on the relationship between E. tenella and Etv.

Dataset Information

Effect of ATP and Bax on the apoptosis of Eimeria tenella host cells.

Background

Results

Publications

Effect of ATP and Bax on the apoptosis of Eimeria tenella host cells.

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