ArticleTranslational pediatrics2023
Long non-coding RNA growth arrest-specific 5 inhibits liver fibrogenesis in biliary atresia by interacting with microRNA-222 and repressing IGF1/AKT signaling.
Article in Translational pediatrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 6 citations in OpenAlex.
- Insulin-like growth factor receptor signaling in physiology and disease.Signal transduction and targeted therapy · 2026Review
- Evaluation of miRNA Expression in Pediatric Cirrhosis Caused by BA and PFIC.BioMed research international · 2026Article
- Mechanistic role of long non-coding RNAs in the pathogenesis of metabolic dysfunction-associated steatotic liver disease and fibrosis.eGastroenterology · 2024Article
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Authors and funding
2 authors at 1 institution in 1 country.
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Abstract
Background: Long non-coding RNA growth arrest-specific 5 (lncRNA GAS5) has been shown to inhibit liver fibrosis through serving as a competing endogenous RNA for microRNA-222 (miR-222). Progressive liver fibrosis is a typical characteristic of biliary atresia (BA). However, the role of GAS5/miR-222 and its underlying mechanisms remain largely unknown in BA. Methods: The expression of GAS5 was determined in the liver and primary hepatic stellate cells (HSCs) of BA patients. Then, the effects of GAS5 on the activation and proliferation of HSCs were evaluated. Furthermore, the interaction between GAS5 and miR-222 was investigated by a luciferase gene report assay. Next, the effects of IGF1/AKT signaling were determined to clarify the downstream mechanism of GAS5. Finally, GAS5 administration was performed to explore its role in an experimental BA mouse model. Results: GAS5 expression was decreased in liver tissues and HSCs of BA patients, and was inversely correlated with liver fibrosis in BA. Up-regulation of GAS5 in LX-2 cells significantly reduced smooth muscle α-actin (α-SMA) and collagen 1a1 (COL1A1) expression, inhibited cell proliferation and clone formation ability, induced S phase increase, and promoted cell apoptosis. Moreover, GAS5 was negatively regulated by miR-222, which promoted HSCs activation and proliferation, and was positively correlated with liver fibrosis in BA. Additionally, the expressions of IGF1, p-PI3K, and p-AKT were decreased when LX-2 cells over-expressed GAS5, whereas knockdown of IGF1 or AKT significantly decreased α-SMA and COL1A1 expression, suppressed cell proliferation, and enhanced cell apoptosis in LX-2 cells. Furthermore, GAS5 administration significantly increased apoptosis and reduced liver fibrosis, α-SMA and COL1A1 expressions in liver tissues of BA mice. Conclusions: GAS5 inhibited liver fibrosis in BA by interacting with miR-222 and regulating IGF1/AKT signaling, which may be a therapeutic target to alleviate liver fibrosis in BA.
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