Seleção e caracterização de biomarcador aplicável em plataformas nanotecnologicas para o monitoramento do tratamento da tuberculose

Abstract

Introduction: Tuberculosis is an infectious disease that affects more than 9 million people each year worldwide . For tuberculosis control methods for the study of more accurate diagnostic and monitoring treatment , make it essential . Objectives: To identify biomarkers by Phage display technique and evaluate the immunoreactivity of the IG\'s clones selected sera from patients with tuberculosis to monitor treatment . Methods: Blood samples were collected from 61 individuals over 18 years , both sexes , and performed the tuberculin test ( PPD ) as a control . The samples were subjected to the process of selection of clones, the biopanning using a library of random 12 amino acid region of the protein expressed on the phage pIII . After selecting the ELISA assay was performed to analyze the immunoreactivity of selected clones . Results: after the in silico analysis , it was found that the sequence of clone F10 ( VYKTPNSTANRW ) has similarity to the membrane protein MPT64 low molecular weight , 28 to 32 kDa, immunogenicity of the M. tuberculosis complex. In ELISA clone F10 showed reactivity significant ( p < 0.05 ) and monitoring of individuals in treatment (P < 0.005). Conclusion : the reactivity of clone F10 demonstrated that it can be used for monitoring the treatment of tuberculosis , contributing to its control.