Identification and characterization of the zinc finger protein SjZF in Schistosoma japonicum

Biochemical and Biophysical Research Communications
Ruixiang ZhangWei Hu

Abstract

Schistosomiasis represents one of the most prevalent parasitic infections affecting over 249 million people worldwide. The pathological damage is mainly caused by the eggs laid by female schistosomes. Zinc finger proteins (ZFPs) usually play critical roles in many biological functions. In this study, we cloned, identified and characterized the zinc finger protein SjZF of Schistosoma japonicum. SjZF ortholog proteins were also identified in S. mansoni, S. haematobium, Opisthorchis viverrini and O. sinensis. Fluorescence localization showed that SjZF was particularly expressed in the worm gut of both genders and the vitelline glands of females. In vitro RNAi assay indicated that decreased expression of SjZF could affect the survival rate of adult worms. The immune protection assay indicated that rSjZF did partially protect mice with 54.8% reduction in the worm burden and 34.1% reduction in the liver eggs. Taken in concert, our preliminary results suggest that SjZF may be a potential vaccine candidate for schistosomiasis and may further provide evidence for a possible role of SjZF in the development of schistosomes.

Citations

Jan 4, 2020·Parasitology Research·Yuanyuan XiaMiao Liu

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