Pro-Fibrotic Effects of CCL18 on Human Lung Fibroblasts Are Mediated via CCR6

Bibliographic Details
Title: Pro-Fibrotic Effects of CCL18 on Human Lung Fibroblasts Are Mediated via CCR6
Authors: Kerstin Höhne, Annett Wagenknecht, Corinna Maier, Peggy Engelhard, Torsten Goldmann, Stephan J. Schließmann, Till Plönes, Martin Trepel, Hermann Eibel, Joachim Müller-Quernheim, Gernot Zissel
Source: Cells, Vol 13, Iss 3, p 238 (2024)
Publisher Information: MDPI AG, 2024.
Publication Year: 2024
Collection: LCC:Cytology
Subject Terms: idiopathic pulmonary fibrosis, fibrogenesis, chemokine receptor, ligand-induced internalization, co-immunoprecipitation, collagen, Cytology, QH573-671
More Details: Background: Idiopathic pulmonary fibrosis (IPF) is a fatal lung disease of unknown origin, with a median patient survival time of ~3 years after diagnosis without anti-fibrotic therapy. It is characterized by progressive fibrosis indicated by increased collagen deposition and high numbers of fibroblasts in the lung. It has been demonstrated that CCL18 induces collagen and αSMA synthesis in fibroblasts. We aimed to identify the CCL18 receptor responsible for its pro-fibrotic activities. Methods: We used a random phage display library to screen for potential CCL18-binding peptides, demonstrated its expression in human lungs and fibroblast lines by PCR and immunostaining and verified its function in cell lines. Results: We identified CCR6 (CD196) as a CCL18 receptor and found its expression in fibrotic lung tissue and lung fibroblast lines derived from fibrotic lungs, but it was almost absent in control lines and tissue. CCL18 induced receptor internalization in a CCR6-overexpressing cell line. CCR6 blockade in primary human lung fibroblasts reduced CCL18-induced FGF2 release as well as collagen-1 and αSMA expression. Knockdown of CCR6 in a mouse fibroblast cell line abolished the induction of collagen and α-smooth muscle actin expression. Conclusion: Our data indicate that CCL18 triggers pro-fibrotic processes via CCR6, highlighting its role in fibrogenesis.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2073-4409
Relation: https://www.mdpi.com/2073-4409/13/3/238; https://doaj.org/toc/2073-4409
DOI: 10.3390/cells13030238
Access URL: https://doaj.org/article/10102b1572804799b83ef55da15bba37
Accession Number: edsdoj.10102b1572804799b83ef55da15bba37
Database: Directory of Open Access Journals
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More Details
ISSN:20734409
DOI:10.3390/cells13030238
Published in:Cells
Language:English