ArticleBMC genomics2024
Lnc-MEG8 regulates yak myoblast differentiation via the miR-22-3p/RTL1 axis.
Article in BMC genomics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Post-Transcriptional Regulatory Network of Non-Coding RNAs in Yaks: Molecular Mechanisms of Hypoxia Adaptation and Productive Traits.Animals : an open access journal from MDPI · 2026Review
- LNC297 promotes BMSCs differentiation and alleviates BHBA-induced inhibition through the miR-145/GAS7 axis.PloS one · 2026Article
- Long non-coding RNAs in cattle: implications for key meat and dairy production traits.Functional & integrative genomics · 2025Review
- Circ-06958 Is Involved in Meat Quality by Regulating Cell Proliferation Through miR-31-5p/AK4 Axis in Pigs.Cells · 2025Article
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Authors and funding
11 authors.
Funding
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Abstract
backgroundThe yak (Bos grunniens) is essential to the livelihoods of Tibetan people on the Qinghai-Tibet Plateau; however, its growth and productivity are constrained by the region's harsh climate and high altitude. Yak skeletal muscle myoblasts, which have evolved to thrive under these challenging conditions, offer a valuable model for investigating muscle development. In this study, we performed transcriptome profiling of yak longissimus dorsi muscle at different growth stages, identifying a key long non-coding RNA, LncRNA-XR_314844 (Lnc-MEG8), with a potential role in muscle development.
resultsWe developed a novel technique to isolate high-quality yak myoblasts, enabling detailed analysis of Lnc-MEG8. Our results indicated that Lnc-MEG8's subcellular localization varies during muscle cell growth: it is found in both the nucleus and cytoplasm during proliferation but shifts mainly to the cytoplasm during differentiation. Functional experiments showed that Lnc-MEG8 promotes cell proliferation and inhibits differentiation, while its silencing had the opposite effect. Further analysis revealed that both Lnc-MEG8 and the gene RTL1 share miR-22-3p as a common target. Dual-luciferase assays confirmed miR-22-3p directly targets both Lnc-MEG8 and RTL1 mRNA. Co-transfection of Lnc-MEG8 and a miR-22-3p mimic restored RTL1 expression, highlighting Lnc-MEG8's regulatory role. Lnc-MEG8 also counteracts miR-22-3p's suppression of key muscle genes such as MyF5 and MyoG, facilitating myotube formation.
conclusionThese findings demonstrate that the Lnc-MEG8-miR-22-3p-RTL1 axis plays a crucial role in yak muscle development, providing insights that could advance muscle tissue engineering and enhance yak meat quality.
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