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More than just membranes: membrane contact sites as crossroads for infections

Britta Bonde1, Lina Herhaus1

  • 1Immune Signaling Group, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, Braunschweig, Germany.

Trends in Microbiology
|December 24, 2025
PubMed

Insights

Intracellular pathogens exploit membrane contact sites (MCSs) to thrive within host cells, disrupting cellular functions. Understanding these pathogen-MCS interactions is key to developing new host-directed therapies against infectious diseases.

Area of Science:

  • Cell Biology
  • Pathogen-Host Interactions
  • Immunology

Background:

  • Membrane contact sites (MCSs) are crucial for cellular processes like metabolism and homeostasis.
  • Intracellular pathogens utilize MCSs to establish replication sites within host cells.
  • Pathogen exploitation of MCSs impacts host immune responses.

Purpose of the Study:

  • To review how intracellular pathogens subvert host membrane contact site (MCS) architecture and function.
  • To discuss emerging concepts and tools for studying pathogen-MCS interactions.
  • To explore the implications of these interactions for developing host-directed therapies.

Main Methods:

  • Literature review of recent discoveries on pathogen-MCS interactions.
  • Analysis of mechanisms by which pathogens co-opt host MCS machinery.
  • Discussion of emerging research tools and therapeutic strategies.

Main Results:

  • Pathogens create specialized interfaces at MCSs for nutrient acquisition and immune evasion.
  • Specific pathogens like Salmonella were highlighted for their subversion of MCSs.
  • Pathogen-MCS interactions are vital for pathogen replication and survival.

Conclusions:

  • Targeting pathogen-MCS interactions offers a promising avenue for novel host-directed therapies.
  • Further research into pathogen-MCS dynamics can reveal new strategies against infectious diseases.
  • Understanding MCSs is critical for both fundamental cell biology and infectious disease research.
Keywords:
infectionmembrane contact sitespathogen–host interaction

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