ArticleThe Journal of biological chemistry2011
Myocardin-related transcription factor-A complexes activate type I collagen expression in lung fibroblasts.
Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
74 citing papers in PubMed, 1 synthesis or guideline pooled it, 122 citations in OpenAlex.
- Transcriptome of Cultured Lung Fibroblasts in Idiopathic Pulmonary Fibrosis: Meta-Analysis of Publically Available Microarray Datasets Reveals Repression of Inflammation and Immunity Pathways.International journal of molecular sciences · 2016Pooled it
- Actin cytoskeletal dynamics in hepatic myofibroblasts and fibrosis.Nature reviews. Gastroenterology & hepatology · 2026Review
- Article
- ARPC2 Promotes Pulmonary Fibrosis by Regulating MRTFA Activity Independent of the Canonical ARP2/3 Complex.International journal of molecular sciences · 2026Article
- Actin Polymerization Status Regulates Tenocyte Homeostasis Through Myocardin-Related Transcription Factor-A.Cytoskeleton (Hoboken, N.J.) · 2025Article
- Interleukin receptor therapeutics attenuate inflammation in canine synovium following cruciate ligament injury.Osteoarthritis and cartilage · 2024Article
- Actin Polymerization Status Regulates Tendon Homeostasis through Myocardin-Related Transcription Factor-A.bioRxiv : the preprint server for biology · 2024Article
- Myocardin-Related Transcription Factor Mediates Epithelial Fibrogenesis in Polycystic Kidney Disease.Cells · 2024Article
- Targeting F-actin stress fibers to suppress the dedifferentiated phenotype in chondrocytes.European journal of cell biology · 2024Article
- Direct interrogation of context-dependent GPCR activity with a universal biosensor platform.Cell · 2024Article
- Direct interrogation of context-dependent GPCR activity with a universal biosensor platform.bioRxiv : the preprint server for biology · 2024Article
- Myofibroblast-specific inhibition of the Rho kinase-MRTF-SRF pathway using nanotechnology for the prevention of pulmonary fibrosis.American journal of physiology. Lung cellular and molecular physiology · 2023Article
- The Role of Myofibroblasts in Physiological and Pathological Tissue Repair.Cold Spring Harbor perspectives in biology · 2023Review
- Mechanical regulation of chromatin and transcription.Nature reviews. Genetics · 2022Review
- Eplerenone ameliorates lung fibrosis in unilateral ureteral obstruction rats by inhibiting lymphangiogenesis.Experimental and therapeutic medicine · 2022Article
- Update on Novel Targeted Therapy for Pleural Organization and Fibrosis.International journal of molecular sciences · 2022Review
- Lens Fibrosis: Understanding the Dynamics of Cell Adhesion Signaling in Lens Epithelial-Mesenchymal Transition.Frontiers in cell and developmental biology · 2022Review
- Mechanotransduction Regulates the Interplays Between Alveolar Epithelial and Vascular Endothelial Cells in Lung.Frontiers in physiology · 2022Review
- Myocardin-related transcription factor and serum response factor regulate cilium turnover by both transcriptional and local mechanisms.iScience · 2021Article
- Expression of serum response factor in the lung mesenchyme is essential for development of pulmonary fibrosis.American journal of physiology. Lung cellular and molecular physiology · 2021Article
14 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Pulmonary fibrosis is characterized by the excessive deposition of a collagen-rich extracellular matrix. The accumulation of collagen within the lung interstitium leads to impaired respiratory function. Furthermore, smooth muscle actin-positive myofibroblasts within the fibrotic lung contribute to disease progression. Because collagen and smooth muscle cell α-actin are coordinately expressed in the setting of fibrosis, the hypothesis was tested that specific transcriptional regulators of the myocardin family might also regulate collagen gene expression in myofibroblasts. Myocardin-related transcription factors (MRTFs), through their interaction with the serum-response factor (SRF) on CArG box regulatory elements (CC(A/T)6GG), are important regulators of myofibroblast differentiation. MRTF-A transactivated type I collagen gene reporters as much as 100-fold in lung myofibroblasts. Loss of functional MRTF-A using either a dominant negative MRTF-A isoform, shRNA targeting MRTF-A, or genetic deletion of MRTF-A in lung fibroblasts significantly disrupted type I collagen synthesis relative to controls. Analysis of the COL1A2 proximal promoter revealed a noncanonical CArG box (CCAAACTTGG), flanked by several Sp1 sites important for MRTF-A activation. Chromatin immunoprecipitation experiments confirmed the co-localization of MRTF-A, SRF, and Sp1 bound to the same region of the COL1A2 promoter. Mutagenesis of either the noncanonical CArG box or the Sp1 sites significantly disrupted MRTF-A activation of COL1A2. Together, our findings show that MRTF-A is an important regulator of collagen synthesis in lung fibroblasts and exhibits a dependence on both SRF and Sp1 function to enhance collagen expression.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.