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Immunochip for Syphilis Serodiagnostics with the Use of Extended Array of Treponema pallidum Recombinant Antigens

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Bulletin of Experimental Biology and Medicine Aims and scope

An immunochip for multiple parallel detection of specific serum IgG in serological screening for syphilis is based on the use of an extended array of Treponema pallidum recombinant proteins and includes traditionally used immunodominant antigens (Tp15, Tp17, Tp47, and TmpA) and new synthetic proteins (Tp0277, Tp0319, Tp0453, Tp0684, Tp0965, and Tp1038). The use of individual antigens has demonstrated high analytical value of Tp0277 (periplasmatic C-terminal protease), Tp0319 (cytoplasmic membrane-associated lipoprotein TmpC), and external membrane-associated protein Tp0453 with transporting function, all of them improving significantly the efficiency of screening for syphilis in comparison with the traditional array of antigens. Multiparametric analysis of the results obtained on the immunochip with the use of linear discriminant analysis confirmed the efficiency of extended array of T. pallidum diagnostic antigens. Due to proposed modification, the “positive” and “negative” sera are clearly differentiated: the serological study showed 94.1% sensitivity and 100% specificity.

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Correspondence to D. G. Deryabin.

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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 165, No. 6, pp. 726-731, June, 2018

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Runina, A.V., Katunin, G.L., Filippova, M.A. et al. Immunochip for Syphilis Serodiagnostics with the Use of Extended Array of Treponema pallidum Recombinant Antigens. Bull Exp Biol Med 165, 767–771 (2018). https://doi.org/10.1007/s10517-018-4261-0

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  • DOI: https://doi.org/10.1007/s10517-018-4261-0

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