Binding of Mucin by E. coli from Human Gut
- Авторы: Vakhrusheva T.1, Baikova Y.1, Balabushevich N.1, Gusev S.1, Lomakina G.2, Sholina E.2, Moshkovskaya M.1, Shcherbakov P.1, Pobeguts O.1, Mikhal’chik E.1
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Учреждения:
- Federal Research and Clinical Center for Physical-Chemical Medicine, Federal Medical-Biological Agency
- Faculty of Chemistry, M. V. Lomonosov Moscow State University
- Выпуск: Том 165, № 2 (2018)
- Страницы: 235-238
- Раздел: Article
- URL: https://journals.rcsi.science/0007-4888/article/view/240190
- DOI: https://doi.org/10.1007/s10517-018-4137-3
- ID: 240190
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Аннотация
Cells of E. coli isolates from the gut of healthy volunteers (N=5) and patients with Crohn’s disease (N=5) and laboratory E. coli strain DH5α bound mucin in vitro in similar amounts ranging from 0.02 to 0.12 mg/mg of bacterial dry weight. Binding was evaluated by the decrease in optical absorption of mucin solution at 214 nm after incubation with bacteria. Detailed analysis of mucin binding by one of isolates showed that during incubation of 0.09 mg/ml bacteria in 0.15 M NaCl containing 0.1 mg/ml mucin at 25oC, maximum binding was reached in 30 min, while in the presence of 14 mM α-methyl mannoside, mucin binding decreased by 46% (p<0.05). Confocal microscopy revealed intensive binding of FITC-labeled mucin to the surface of a small number of bacterial cells. Mucin binding did not significantly affect zeta potential of bacteria and their energetic status assessed by ATP content; at the same time, ATP content in the extracellular environment slightly increased.
Об авторах
T. Vakhrusheva
Federal Research and Clinical Center for Physical-Chemical Medicine, Federal Medical-Biological Agency
Email: lemik2007@yandex.ru
Россия, Moscow
Yu. Baikova
Federal Research and Clinical Center for Physical-Chemical Medicine, Federal Medical-Biological Agency
Email: lemik2007@yandex.ru
Россия, Moscow
N. Balabushevich
Federal Research and Clinical Center for Physical-Chemical Medicine, Federal Medical-Biological Agency
Email: lemik2007@yandex.ru
Россия, Moscow
S. Gusev
Federal Research and Clinical Center for Physical-Chemical Medicine, Federal Medical-Biological Agency
Email: lemik2007@yandex.ru
Россия, Moscow
G. Lomakina
Faculty of Chemistry, M. V. Lomonosov Moscow State University
Email: lemik2007@yandex.ru
Россия, Moscow
E. Sholina
Faculty of Chemistry, M. V. Lomonosov Moscow State University
Email: lemik2007@yandex.ru
Россия, Moscow
M. Moshkovskaya
Federal Research and Clinical Center for Physical-Chemical Medicine, Federal Medical-Biological Agency
Email: lemik2007@yandex.ru
Россия, Moscow
P. Shcherbakov
Federal Research and Clinical Center for Physical-Chemical Medicine, Federal Medical-Biological Agency
Email: lemik2007@yandex.ru
Россия, Moscow
O. Pobeguts
Federal Research and Clinical Center for Physical-Chemical Medicine, Federal Medical-Biological Agency
Email: lemik2007@yandex.ru
Россия, Moscow
E. Mikhal’chik
Federal Research and Clinical Center for Physical-Chemical Medicine, Federal Medical-Biological Agency
Автор, ответственный за переписку.
Email: lemik2007@yandex.ru
Россия, Moscow