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Article Publish Status: FREE
Abstract Title:

Blueberry Juice Attenuates Pulmonary FibrosisBlocking the TGF-β1/Smad Signaling Pathway.

Abstract Source:

Front Pharmacol. 2022 ;13:825915. Epub 2022 Mar 28. PMID: 35418869

Abstract Author(s):

Yali Li, Liqun Wang, Qianyu Zhang, Li Tian, Cailing Gan, Hongyao Liu, Wenya Yin, Tinghong Ye

Article Affiliation:

Yali Li

Abstract:

Idiopathic pulmonary fibrosis (IPF) is a progressive, fatal, and chronic lung disease, lacking a validated and effective therapy. Blueberry has demonstrated multiple pharmacological activities including anti-inflammatory, antioxidant, and anticancer. Therefore, the objective of this study was to investigate whether blueberry juice (BBJ) could ameliorate IPF. Experimentsrevealed that BBJ could significantly reduce the expressions of TGF-β1 modulated fibrotic protein, which were involved in the cascade of fibrosis in NIH/3T3 cells and human pulmonary fibroblasts. In addition, for rat primary lung fibroblasts (RPLFs), BBJ promoted the cell apoptosis along with reducing the expressions of α-SMA, vimentin, and collagen I, while increasing the E-cadherin level. Furthermore, BBJ could reverse epithelial-mesenchymal transition (EMT) phenotypic changes and inhibit cell migration, along with inducing the upregulation of E-cadherin in A549 cells. Compared with the vehicle group, BBJ treatment alleviated fibrotic pathological changesand collagen deposition in both bleomycin-induced prevention and treatment pulmonary fibrosis models. In fibrotic lung tissues, BBJ remarkably suppressed the expressions of collagen I, α-SMA, and vimentin and improved E-cadherin, which may be related to its inhibition of the TGF-β1/Smad pathway and anti-inflammation efficacy. Taken together, these findings comprehensively proved that BBJ could effectively prevent and attenuate idiopathic pulmonary fibrosissuppressing EMT and the TGF-β1/Smad signaling pathway.

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