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31 August 2019 : Laboratory Research

[Retracted: 21 Feb 2024] Alleviation of Inflammatory Response of Pulmonary Fibrosis in Acute Respiratory Distress Syndrome by Puerarin via Transforming Growth Factor (TGF-β1)

Xiaoming Hu1ABCDEFG*, Xiaolan Huang2ABCDEFG

DOI: 10.12659/MSM.915570

Med Sci Monit 2019; 25:6523-6531

The authors have requested retraction due to the identification of errors in the data. Reference: Xiaoming Hu, Xiaolan Huang. Alleviation of Inflammatory Response of Pulmonary Fibrosis in Acute Respiratory Distress Syndrome by Puerarin via Transforming Growth Factor (TGF-ß1). Med Sci Monit, 2019; 25: 6523-6531. DOI: 10.12659/MSM.915570


BACKGROUND: Acute respiratory distress syndrome (ARDS) in infants is acute and progressive hypoxic respiratory failure caused by various extrapulmonary pathogenic factors besides cardiogenic factors. Diffuse alveolar injury and progression to pulmonary fibrosis are pathological features of ARDS. The present study sought to determine how puerarin influences the inflammatory response caused by pulmonary fibrosis in ARDS in infants.

MATERIAL AND METHODS: The human lung fibroblasts cell line HLF1 was treated with different concentrations of puerarin in different groups for various times. TGF-β1 was overexpressed by TGF-β1 (2 ng/mL) in routine experiments, and the treated cells and culture supernatant were collected for analysis in each step. Cell apoptosis was measured by flow cytometry, TUNEL assay, and detection of caspase 3 and Bcl-2. Cell proliferation was assessed by CCK-8 assay. Real-time PCR and Western blot assay were used to assess mRNA and protein levels of TGF-β1 and Smad3, respectively. The related cytokines were assessed by ELISA.

RESULTS: Results showed that puerarin promoted the apoptosis and inhibited the proliferation of HLF1 cells. Caspase 3 was upregulated, whereas Bcl-2, TGF-β1, and Smad3 were downregulated by puerarin. IL-1, IL-2, and IL-4, secreted by HLF1 cells, were reduced, but IL-10 showed the opposite trend. When TGF-β1 was overexpressed, Smad3 was promoted, and IL-1, IL-2, and IL-4 was increased in HLF1 cells. Finally, overexpression of TGF-β1 reversed the effect of puerarin in HLF1 cells.

CONCLUSIONS: Puerarin regulated the proliferation and apoptosis of pulmonary fibrosis cells, and affected the secretion of inflammatory cytokines. Thus, puerarin alleviated the inflammatory response resulting from pulmonary fibrosis by regulating the TGF-β1/Smad3 pathway in infants with ARDS.

Keywords: Retracted Publication

Retraction note

Med Sci Monit 2024; 30:e944195     https://medscimonit.com/abstract/index/idArt/944195
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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750