Home Bratislava Medical Journal 2021 Bratislava Medical Journal Vol.122, No.2, p.145–151,2021

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Published Monthly, in English
Founded: 1919
ISSN 0006-9248
(E)ISSN 1336-0345

Impact factor 1.564


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Bratislava Medical Journal Vol.122, No.2, p.145–151,2021

Title: Platycodin D alleviates proliferation and extracellular matrix accumulation in TGF-beta1 induced pulmonary fibroblasts
Author: H. H. Hou, C. C. Su, L. L. Hong, H. F. Huang, Y. F. Tang

Abstract: AIM: Platycodin D (PD), an oleanane kind of triterpenoid saponin, possesses various pharmacological activities. We aimed to investigate the effects of PD in pulmonary fibrosis.
METHOD: MRC-5 cells were induced by transforming growth factor-beta1 (TGF-β1) to simulate the pulmonary fibrosis in vitro. Cell viability was determined using a CCK-8 kit in the absence or presence of PD. Then, the expression of proliferation-related proteins was detected using immunofluorescence assay or western blot analysis. Moreover, the levels of inflammatory factors were examined. Subsequently, the ability of cell migration was evaluated using wound healing assay. Additionally, western blot analysis was employed to determine migration- and extracellular matrix accumulation (ECM)-related proteins expression.
RESULTS: Results indicated that PD exposure significantly dose-dependently inhibited TGF-β1 induced proliferation in MRC-5 cells. Additionally, the contents of inflammatory factors were notably inhibited with PD treatment. Furthermore, significant decrease in migration of TGF-β1-stimulated MRC-5 cells was observed after PD intervention. Afterwards, PD remarkably suppressed the expression of alpha smooth muscle actin (α-SMA), collagen I (Col I), collagen III (Col III) and E-cadherin (E-cad).
CONCLUSIONS: PD attenuated proliferation and ECM accumulation in TGF-β1 induced lung fibroblasts, providing experimental support for the clinical application of PD in the treatment of pulmonary fibrosis (Fig. 6, Ref. 33).

Keywords: pulmonary fibrosis, platycodin D, extracellular matrix, proliferation, inflammation
Published online: 26-Jan-2021
Year: 2021, Volume: 122, Issue: 2 Page From: 145, Page To: 151

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