Synapse
⌘+K
Synapse
PulseExploreJournal ClubResearchersJournals
Instagram
HomeJournal ClubExplore
May 20, 2026American Journal of Respiratory and Critical Care Medicine

A33-05 Activation of α7 Nachr Promotes Influenza A Virus Replication in Lung Epithelial Cells via the Camk2β/nedd4/ifitm3 Pathway

View Full Paper
Ask AI
Bookmark
Share

Authors

XSX SuMPM Pan

Discussion

Loading...

Member takes

Overview

Randomized trial finds activation of α7 nAChR increases influenza A virus replication in lung cells, suggesting new treatment targets.

Key Points

  • This research aims to investigate how α7 nicotinic acetylcholine receptor (α7 nAChR) activation influences influenza A virus (IAV) replication in lung epithelial cells through a specific signaling pathway.
  • Human alveolar type II epithelial cells (A549) were used to evaluate the effects of the α7 nAChR agonist GTS-21 on IAV replication.
  • Viral replication was measured by quantifying PR8 M gene copies via qPCR and protein levels through western blot analysis.
  • Stable knockdown and overexpression of CAMK2B and NEDD4 were performed to assess their roles in GTS-21-mediated IAV replication.
  • Activation of α7 nAChR significantly promoted IAV replication while downregulating IFITM3 expression.
  • CAMK2B overexpression enhanced IFITM3 levels and supported the IFNβ/STAT1 signaling axis, while its knockdown suppressed IFITM3 and facilitated viral replication.
  • Knockdown of NEDD4 reduced viral titers and negated the pro-viral effect of GTS-21.

Cite This Study

Su et al. (2026) studied this question.

synapsesocial.com/papers/6a0d4f34f03e14405aa9a648https://doi.org/10.1093/ajrccm/aamag162.040
View Full Paper
Ask AI
Bookmark
Share

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Vagal‐α7 nicotinic acetylcholine receptor signaling exacerbates influenza severity by promoting lung epithelial cell infection2024 · 4 citations
  2. 2Novel Mechanism of the L‐Type Voltage‐Gated Channels/Calpains Axis in Influenza A Virus‐Induced Autophagosome Activity2025
  3. 3CRISPR editing of candidate host factors that impact influenza A virus infection2024
  4. 4Influenza A Virus Employs Nei Endonuclease VIII-Like 1 (NEIL1) to Strength vRNP Function and Block IFN-β Production2024
  5. 5P-1799. Targeting the Endocannabinoid System: Cannabinoid Receptor 2 Activation Modulates Outcomes in Influenza A Virus Infection – Insights from a Murine Model2026