Identification of a Theileria mutans‐specific antigen for use in an antibody and antigen detection ELISA
作者:
J. M. KATENDE,
B. M. GODDEERIS,
S. P. MORZARIA,
C. G. NKONGE,
A. J. MUSOKE,
期刊:
Parasite Immunology
(WILEY Available online 1990)
卷期:
Volume 12,
issue 4‐5
页码: 419-433
ISSN:0141-9838
年代: 1990
DOI:10.1111/j.1365-3024.1990.tb00978.x
出版商: Blackwell Publishing Ltd
关键词: Theileria mutans;identification;antigen;monoclonal antibody;immune complexes;ELISA
数据来源: WILEY
摘要:
SummaryPurified piroplasms ofTheileria mutanswere used to immunize BALB/c mice to generate monoclonal antibodies (MoAbs). The MoAbs recognized an antigen of a relative molecular mass of 32 kDa in Western blots. This antigen was also recognized by sera from cattle which had recovered naturally from experimental tick‐transmission or infections induced by the blood stages ofT. mutans.The MoAbs did not react, in indirect immunofluorescence or enzyme‐linked immunosorbent assays (ELISA), with the common haemoparasites of cattle, namely,T. parva, T. annulata, Babesia bigemina, B. bovis, Anaplasma marginale, Trypanosoma congolense, T. vivaxorT. brucei.An antigen capture ELISA was established with two of the MoAbs which recognized different epitopes on the 32 kDa molecule. Using this test it was possible to detect circulating antigens or immune complexes in sera collected from cattle during the acute or chronic phases of infection. When the purified 32 kDa protein was used as antigen in a micro‐ELISA to detect circulating antibodies in both experimental and field cattle sera, it was found that the titres of antibodies ranged between 1:20 and 1:10 240. Results of this study indicate that the antigen and immune complex capture assays and the antibody detection ELISA can be complementary in the immunodiagnosis of acute and chronicT. mutansinfections. Moreover, the tests are useful in the differential diagnosis of the disease and for epidemiological st
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