Genes determining virulence factors of Escherichia coli strains isolated from prostate secretions patients with chronic bacterial prostatitis

Kuzmin M.D., Kapustina O.A., Popova L.P., Pashkova T.M., Gritsenko V.A., Kartashova O.L.

Orenburg Federal Research Center of the Ural Branch of the Russian Academy of Sciences, Orenburg, Russia

The aim of the work is to characterize virulence genes of E. coli strains isolated from prostate secretions patients with chronic bacterial prostatitis.
Materials and methods. Escherichia coli were isolated from the prostate secretions of men of reproductive age (20–45 years) with chronic bacterial prostatitis using a generally accepted bacteriological method, the type was determined using MALDI-TOF mass spectrometry, virulence genes were PCR and sequencing.
Results. The genomes of the studied strains contain genes encoding groups of virulence factors: adhesins, toxins, capsule antigens, siderophores, invasins, and anti-immunity of the macroorganism. It was shown that the genes of adhesins, siderophores, and immune system counteraction factors prevailed in E. coli.
Conclusion. Further studies of E. coli strains using genome-wide sequencing and proteomics technologies are needed. The accumulation of the obtained data will make it possible to use virulence genes as diagnostic markers in patients with chronic prostatitis, indicating the presence of infection.

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About the Authors

Contact author: M.D. Kuzmin – Doctor of Medical Sciences, urologist of the highest qualification category, leading researcher of the laboratory for studying the mechanisms of formation of human microbial biocenoses at the ICIS UB RAS – a separate structural subdivision of the OFRC UB RAS, Orenburg, Russia

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