Lysosome-associated membrane glycoprotein 3 is involved in influenza A virus replication in human lung epithelial (A549) cells
2011

LAMP3's Role in Influenza A Virus Replication

publication Evidence: moderate

Author Information

Author(s): Zhou Zhuo, Xue Qinghua, Wan Yuli, Yang Yaowu, Wang Jianwei, Hung Tao

Primary Institution: State Key Laboratory of Molecular Virology and Genetic Engineering, Institute of Pathogen Biology, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China

Hypothesis

LAMP3 is involved in the post-entry stages of influenza A virus infection.

Conclusion

LAMP3 plays an important role in influenza A virus replication by facilitating viral post-entry steps.

Supporting Evidence

  • LAMP3 was significantly induced in A549 cells upon influenza A virus infection.
  • Knockdown of LAMP3 expression reduced viral nucleoprotein production and virus titers.
  • Confocal microscopy showed that viral nucleoprotein colocalized with LAMP3 positive vesicles.

Takeaway

LAMP3 helps the flu virus make more copies of itself after it gets into cells, so blocking LAMP3 could help fight the flu.

Methodology

The study used RNA interference to knock down LAMP3 in A549 cells and assessed the impact on influenza A virus replication through various assays.

Limitations

The study primarily focused on a single cell line (A549) and may not fully represent other cell types.

Statistical Information

P-Value

0.031

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1743-422X-8-384

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