Related Experiment Video

Updated: May 22, 2026

Co-immunoprecipitation of the Mouse Mx1 Protein with the Influenza A Virus Nucleoprotein
09:39

Co-immunoprecipitation of the Mouse Mx1 Protein with the Influenza A Virus Nucleoprotein

Published on: April 21, 2015

Roles of the M2 protein of influenza A virus

Weigang Ren1, Qin Wang2, Yongxiang Yi3

  • 1Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China.

Virus Genes
|May 20, 2026
PubMed

Insights

Influenza A virus matrix protein 2 (M2) has roles beyond ion channels, affecting host immunity and autophagy. Understanding M2

Area of Science:

  • Virology
  • Immunology
  • Cell Biology

Background:

  • Matrix protein 2 (M2) is a key ion channel protein in influenza A virus.
  • M2 influences host cell function and homeostasis, and is a target for antiviral drugs like amantadine.
  • Research on M2 covers its structure, function, and role in host immune responses.

Purpose of the Study:

  • To review research progress on influenza A virus M2 protein.
  • To emphasize M2's roles beyond ion conduction.
  • To explore M2's impact on host innate immunity and viral replication.

Main Methods:

  • Literature review of M2 protein research.
  • Analysis of M2's interactions with host pathways (MAVS, autophagy, AKT-mTOR).
  • Examination of M2's role in oxidative stress (ROS) production.

Main Results:

  • M2 modulates the MAVS pathway via direct interaction and ROS induction.
  • M2 disrupts autophagic degradation of MAVS aggregates.
  • M2 inhibits autophagosome-lysosome fusion and activates AKT-mTOR signaling to enhance viral replication.

Conclusions:

  • M2 protein has multifaceted roles in viral life cycle and host immune evasion.
  • Understanding M2's non-ion channel functions is crucial for developing new antiviral therapies.
  • M2-based vaccines and host-directed therapies are promising avenues for influenza control.
Keywords:
Influenza A virusInnate immunityM2 proteinM2-based drugM2e-based vaccine

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