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Tytuł pozycji:

Molecular characterization and expression analysis of annexin B3 and B38 as secretory proteins in Echinococcus granulosus.

Tytuł:
Molecular characterization and expression analysis of annexin B3 and B38 as secretory proteins in Echinococcus granulosus.
Autorzy:
Song H; Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China.
He X; Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China.
Du X; Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China.
Hua R; Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China.
Xu J; Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China.
He R; Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China.
Xie Y; Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China.
Gu X; Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China.
Peng X; Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Wenjiang, 611130, China.
Yang G; Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China. .
Źródło:
Parasites & vectors [Parasit Vectors] 2021 Feb 08; Vol. 14 (1), pp. 103. Date of Electronic Publication: 2021 Feb 08.
Typ publikacji:
Journal Article
Język:
English
Imprint Name(s):
Original Publication: London : BioMed Central
MeSH Terms:
Annexins/*classification
Annexins/*genetics
Echinococcus granulosus/*genetics
Amino Acid Sequence ; Animals ; Annexins/chemistry ; Cloning, Molecular ; Computational Biology ; Dogs ; Echinococcosis/parasitology ; Female ; Male ; Protein Binding ; Rabbits ; Sequence Alignment ; Sheep
References:
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Grant Information:
No. 31672547 the National Natural Science Foundation of China; No. 2020YFN0030 the Key TechnologyR&D Program of Sichuan Province, China
Contributed Indexing:
Keywords: Annexin; Calcium ion; Echinococcus granulosus; Immunofluorescence localization; Secretory protein; Western blotting
Substance Nomenclature:
0 (Annexins)
Entry Date(s):
Date Created: 20210209 Date Completed: 20210819 Latest Revision: 20211029
Update Code:
20240104
PubMed Central ID:
PMC7869467
DOI:
10.1186/s13071-021-04596-7
PMID:
33557917
Czasopismo naukowe
Background: Cystic echinococcosis is a parasitic zoonotic disease, which poses a threat to public health and animal husbandry, and causes significant economic losses. Annexins are a family of phospholipid-binding proteins with calcium ion-binding activity, which have many functions.
Methods: Two annexin protein family genes [Echinococcus granulosus annexin B3 (EgAnxB3) and EgAnxB38] were cloned and molecularly characterized using bioinformatic analysis. The immunoreactivity of recombinant EgAnxB3 (rEgAnxB3) and rEgAnxB38 was investigated using western blotting. The distribution of EgAnxB3 and EgAnxB38 in protoscoleces (PSCs), the germinal layer, 18-day strobilated worms and 45-day adult worms was analyzed by immunofluorescence localization, and their secretory characteristics were analyzed preliminarily; in addition, quantitative real-time reverse transcription polymerase chain reaction was used to analyze their transcript levels in PSCs and 28-day strobilated worms stages. The phospholipid-binding activities of rEgAnxB3 and rEgAnxB38 were also analyzed.
Results: EgAnxB3 and EgAnxB38 are conserved and contain calcium-binding sites. Both rEgAnxB3 and rEgAnxB38 could be specifically recognized by the serum samples from E. granulosus-infected sheep, indicating that they had strong immunoreactivity. EgAnxB3 and EgAnxB38 were distributed in all stages of E. granulosus, and their transcript levels were high in the 28-day strobilated worms. They were found in liver tissues near the cysts. In addition, rEgAnxB3 has Ca 2+ -dependent phospholipid-binding properties.
Conclusions: EgAnxB3 and EgAnxB38 contain calcium-binding sites, and rEgAnxB3 has Ca 2+ -dependent phospholipid-binding properties. EgAnxB3 and EgAnxB38 were transcribed in PSCs and 28-day strobilated worms. They were expressed in all stages of E. granulosus, and distributed in the liver tissues near the hydatid cyst, indicating that they are secreted proteins that play a crucial role in the development of E. granulosus.
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