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Chinese Journal of Lung Diseases(Electronic Edition) ›› 2022, Vol. 15 ›› Issue (02): 157-160. doi: 10.3877/cma.j.issn.1674-6902.2022.02.004

• Original Article • Previous Articles     Next Articles

Expression and significance of annexin A2 in patients with viral community-acquired pneumonia

Yao Chen1, Fuhui Chen2,()   

  1. 1. Department of Respiratory Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China; Department of Respiratory and Critical Care Medicine, Jingmen First People′s Hospital, Jingmen 448000, China
    2. Department of Respiratory Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
  • Received:2021-05-25 Online:2022-04-25 Published:2022-06-28
  • Contact: Fuhui Chen

Abstract:

Objective

To investigate the expression of Annexin A2 in peripheral blood mononuclear cells of patients with viral community-acquired pneumonia, and provide new ideas for the antiviral treatment of viral pneumonia.

Methods

A total of 50 patients with viral CAP and 47 patients with bacterial CAP who were hospitalized in our hospital from January 2016 to January 2018 were selected as the virus group and bacteria group, respectively, and 48 healthy patients were selected as the control group. The quantitative real-time polymerase chain reaction (qPCR) method was used to determine the expression level of annexin A2 mRNA, and the western-blot method was used to detect the expression level of annexin A2 protein. Compare the relative expression levels of each group.

Results

There were 40 cases of single virus infection and 10 cases of mixed virus infection in the virus group. Influenza virus (30%) accounted for the highest proportion of single virus infections, followed by rhinoviruses and coronaviruses, and 7 mixed virus infections included influenza viruses. The expression of annexin A2 mRNA in the viral group and the bacterial group was higher than that in the control group, and the expression of the viral group was higher than that of the bacterial group. The difference was statistically significant (P<0.05). The expression of mRNA and protein of ANXA2 in the coronavirus group was higher than that of the bacterial CAP group and the control group. The difference was statistically significant (P<0.05).

Conclusion

ANXA2 may participate in the occurrence of viral CAP through more ways and mechanisms. The role of ANXA2 in coronavirus infection may be more significant. ANXA2 has the potential to become a target of antiviral therapy for viral CAP, especially coronavirus CAP.

Key words: Viral pneumonia, Coronavirus, Annexin A2

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