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An indirect ELISA for detection of Theileria sergenti antibodies in water buffalo using a recombinant major piroplasm surface protein. 2010

L X Wang, and J H Zhao, and L He, and Q Liu, and D N Zhou, and Y Q Zhou, and J L Zhao
State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Hubei, Wuhan 430070, PR China.

In this study we investigated the prevalence and enzootic potential of Theileria spp. in water buffalo in the Hubei province in China. An indirect ELISA based on a recombinant major piroplasma surface protein was developed. The complete ORF of the 33-kDa major piroplasma surface protein (p33) was obtained from Theileria sergenti genomic DNA by PCR, cloned into the pET-28(a) vector and expressed in E. coli as a His-fusion protein. Then the recombinant p33 (rp33) was purified and used as the antigen to develop an iELISA. Specificity test showed that there was no cross-reaction with Babesia orientalis, Schistosoma japonicum, Anaplasma marginale and Toxoplasma gondii. 178 water buffaloes raised in different locations in Hubei province in China were detected by this iELISA, all samples were also examined by PCR and microscopy at the same time. The iELISA result showed a higher positive rate (27.5%) than PCR (22.5%) and microscopy (12.9%). This result indicated that the iELISA is a suitable method for the diagnosis of T. sergenti infection and could be used in serological surveys to map out the prevalence of the disease.

UI MeSH Term Description Entries
D002020 Buffaloes Ruminants of the family Bovidae consisting of Bubalus arnee and Syncerus caffer. This concept is differentiated from BISON, which refers to Bison bison and Bison bonasus. Bubalus,Syncerus,Water Buffaloes,Buffalo,Water Buffalo,Buffalo, Water
D002681 China A country spanning from central Asia to the Pacific Ocean. Inner Mongolia,Manchuria,People's Republic of China,Sinkiang,Mainland China
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000913 Antibodies, Protozoan Immunoglobulins produced in a response to PROTOZOAN ANTIGENS. Protozoan Antibodies
D012680 Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) Specificity,Sensitivity,Specificity and Sensitivity
D013801 Theileriasis Infection of cattle, sheep, or goats with protozoa of the genus THEILERIA. This infection results in an acute or chronic febrile condition. Corridor Disease,East Coast Fever,Theileriosis,Coast Fever, East,Disease, Corridor,Fever, East Coast,Theileriases,Theilerioses
D016794 Theileria A genus of tick-borne protozoa parasitic in the lymphocytes, erythrocytes, and endothelial cells of mammals. Its organisms multiply asexually and then invade erythrocytes, where they undergo no further reproduction until ingested by a transmitting tick. Theilerias

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