Schistosoma japonicum: proteomics analysis of differentially expressed proteins from ultraviolet-attenuated cercariae compared to normal cercariae.
Schistosomiasis is considered the most important human helminthiasis in terms of morbidity and mortality. In this study, comparative soluble proteomic analysis of normal cercariae and ultraviolet-irradiated attenuated cercariae (UVAC) from Schistosoma japonicum were carried out in view of the high efficiency of irradiation-attenuated cercariae vaccine. The results revealed that some proteins showed significant differential expression in the parasite after treatment with ultraviolet light. Total 20 protein spots were identified by mass spectrometry, corresponded to five groups according to their functions in the main that were structural and motor proteins (actin, et al.), energy metabolism associated enzymes (glyceraldehydes-3-phosphage dehydrogenase, et al.), signaling transduction pathway-associated molecules (14-3-3 protein, et al.), heat shock protein families (HSP 70 family, et al.), and other functional proteins (20S proteasome). Furthermore, our results indicated that the differential expression of the proteins by ultraviolet irradiation may be, at least partially, acquired by regulating the mRNA levels of corresponding proteins. These results may provide new clues for further exploring the mechanism of protective immunity induced by UVAC and may shed some light on the development of vaccines against schistosomiasis.
Yang
Lin-lin
LL
Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.
Lv
Zhi-yue
ZY
Hu
Shao-min
SM
He
Si-jie
SJ
Li
Zheng-yu
ZY
Zhang
Shuang-min
SM
Zheng
Huan-qin
HQ
Li
Ming-tao
MT
Yu
Xin-bing
XB
Fung
Ming-Chiu
MC
Wu
Zhong-dao
ZD
D000818:Animals; D015180:Electrophoresis, Gel, Two-Dimensional; D020869:Gene Expression Profiling; D015801:Helminth Proteins / Q000032:analysis*; D013058:Mass Spectrometry; D020543:Proteome / Q000032:analysis*; D012549:Schistosoma japonicum / Q000737:chemistry* / Q000528:radiation effects*; D014466:Ultraviolet Rays
D015801:Helminth Proteins; D020543:Proteome