UMU logo

Molecular mechanisms in the interplay between bacteria and host during gastrointestinal infections

fallman maria mpn

PI. Maria Fällman, Professor
Department of Molecular Biology
Contact: This email address is being protected from spambots. You need JavaScript enabled to view it.

Maria Fällman and her research group study mechanisms in bacterial gastrointestinal infections, both from the view of bacteria and host. She has made groundbreaking discoveries concerning molecular mechanisms behind Yersinia resistance to phagocytosis where she identified and characterized the host cell target proteins for the virulence effector YopH.

The lab was behind the finding that sub-lethal doses of Yersinia result in persistent infection in mice. Current work related to this involve studies of bacterial adaption and role of immune defence mechanisms using transcriptomic and proteomic analyses. Other projects involve metabolomics as potential practical applications in diagnosis and antibiotic resistance determinations.

Fallman Maria 4673 161010 MPN

The group is involved in studies of effector translocation by the Type Three Secretion System (T3SS) where they together with the Wolf-Watz lab demonstrated the alternative mechanism för T3SS delivery from the bacterial surface. The Fällman group focuses on the instant action of the virulence effectors on immune cells and they recently showed the mechansm by which the effector YopK directs T3SS delivery, required for a productive infection. They have also shown that macrophages and dendritic cells are differently affected by antiphagocytic virulence effectors and that it relay on the host cell recognition mechanism.

playMaria Fällman's web page at the department of Molecular Biology


Photo credit: Mattias Petterson.

Battling antibiotic resistance

movie by Knut and Alice Wallenberg Foundation, with participation of scientists from MIMS and UCMR:
Or watch the original movie on:

Research about infectious diseases:

Oliver Billker in movie of Knut and Alice Wallenberg Foundation:
Or watch the original movie on:

footer all slides 2014-02-06

Copyright © 2019 by The Laboratory for Molecular Infection Medicine Sweden (MIMS). All rights reserved.