scholarly journals Evaluation of a monoclonal antibody affinity purified antigen for zymodeme specific serological diagnosis of Trypanosoma cruzi infection

1987 ◽  
Vol 82 (1) ◽  
pp. 81-85 ◽  
Author(s):  
Mauro Schechter

Theoretically, serological assays with affinity purified marker antigens can allow strain-specific diagnosis even when parasites cannot be retrieved from and infected host. A Trypanosoma cruzi antigen was purified by affinity chromatography using a zymodeme (Z) 2 specific monoclonal antibody (2E2C11). An indirect enzyme-linked immunosorbent assay (ELISA) based on the purified antigen could discriminate between sera from rabbits immunized with T. cruzi zymodeme clones but could not discriminate between sera from mice infected with different zymodemes.

1991 ◽  
Vol 33 (3) ◽  
pp. 193-198 ◽  
Author(s):  
José Figuerêdo-Silva ◽  
Yoshimasa Kaneda ◽  
Hiroshi Tachibana ◽  
Rieko Furushima ◽  
Seiki Tateno ◽  
...  

A survey of the prevalence of Trypanosoma cruzi infection was carried out in Oitis, a small community in the State of Piaui, Brazil. Two hundred and sixty five individuals were screened by microscopic examination, hémoculture, indirect immunofluorescence (IFA), enzyme-linked immunosorbent assay (ELISA), and competitive enzyme-linked immunosorbent assay (C-ELISA) using the monoclonal antibody TCF87 against to a 25kd T. cruzi antigen. Seropositivity was 14.3% by the IFA test, 14.7% by ELISA, and 13.2% by C-ELISA. The C-ELISA using the TCF87 monoclonal antibody seems to be applicable in serodiagnosis of Chagas' disease.


2013 ◽  
Vol 108 (7) ◽  
pp. 928-931 ◽  
Author(s):  
Luis Izquierdo ◽  
Alexandre Ferreira Marques ◽  
Montserrat Gállego ◽  
Sílvia Sanz ◽  
Sílvia Tebar ◽  
...  

RSC Advances ◽  
2018 ◽  
Vol 8 (31) ◽  
pp. 17410-17416 ◽  
Author(s):  
Seiichi Sakamoto ◽  
Shinji Wada ◽  
Hiroyuki Tanaka ◽  
Satoshi Morimoto

MAb 1E9 was generated from AG–BSA conjugates possessing one AG molecule per BSA for icELISA.


2011 ◽  
Vol 27 (2) ◽  
pp. 125-131 ◽  
Author(s):  
Sung-Hee Kim ◽  
Sang-Ho Cha ◽  
Bischoff Karyn ◽  
Sung-Won Park ◽  
Seong-Wan Son ◽  
...  

1990 ◽  
Vol 53 (7) ◽  
pp. 577-580 ◽  
Author(s):  
JUAN I. AZCONA ◽  
MOHAMED M. ABOUZIED ◽  
JAMES J. PESTKA

A hybridoma-based method utilizing tandem affinity chromatography and enzyme-linked immunosorbent assay (ELISA) was devised to detect zearalenone. A zearalenone specific monoclonal antibody was attached to Sepharose for initial sample clean-up. Zearalenone was eluted with methanol and then quantified by competitive direct ELISA. Average ELISA recoveries from the column for water spiked with zearalenone at levels of 1, 5, 10, 25, and 50 ng/ml were 107, 86, 95, 95, and 92%, respectively, with a mean recovery of 95%. Mean interwell and interassay coefficients of variation were 9.7 and 8.9%, respectively. Average recovery by the method from milk spiked with zearalenone at levels of 1, 5, 10, 25, and 50 ng/ml was 187, 113, 107, 110, and 112%, respectively, with a mean recovery of 126%. Mean interwell and interassay coefficients of variation were 14.5 and 9.1%, respectively. Zearalenone was not detectable in 12 commercial milk samples assayed by the tandem method.


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