Evidence map›Paper›PMID 41388247›Full record

ArticleBMC genomics2025

Exploring the regulatory mechanisms of differentially expressed circRNAs during bovine intramuscular adipogenic differentiation.

Belete Kuraz Abebe, Juntao Guo, Jianfang Wang, Diba Dedacha Jilo, Shencheng Yu, Gong Cheng, Anning Li, Linsen Zan

Abstract read
In one paragraph

Article in BMC genomics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Belete Kuraz AbebeCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China. beleab2@gmail.com.
Juntao GuoCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
Jianfang WangCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
Diba Dedacha JiloCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
Shencheng YuCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
Gong ChengCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
Anning LiCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
Linsen ZanCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China. zanlinsen@163.com.

Funding

National Natural Science Foundation of China 31972994
6 · The paper itself

Abstract

backgroundIntramuscular fat (IMF) accumulation plays a crucial role in determining beef quality. However, the molecular mechanisms regulating adipogenesis within bovine tissue remain unclear.

resultsThis study conducted a comprehensive reanalysis of circular RNAs (circRNAs) transcriptomes using Temporal Clustering Analysis (TCA) to characterize their dynamic expression during the differentiation of bovine intramuscular preadipocytes across four time points. TCA revealed eight distinct clusters. Clusters 2 and 6 were selected due to exhibiting inverse expression trajectories that suggest stage-specific regulatory functions during early differentiation and late adipocyte maturation, respectively. Differential expression analysis identified 40 circRNAs which were dynamically modulated during the early stages of differentiation, including 19 core circRNAs shared among clusters, which may play essential roles in adipogenic development. Functional enrichment analysis of the host genes associated with these circRNAs indicated pathways related to extracellular matrix remodeling, focal adhesion, glycosylation, and DNA repair. This highlights the complex regulatory landscape mediated by circRNAs in adipogenesis. Regulatory network analysis of miRNA-mRNA interactions has identified a competing endogenous RNA (ceRNA) network consisting of 19 circRNAs, 54 miRNAs, and 209 mRNAs. This network exhibits significant enrichment in the PI3K-Akt signaling pathway and includes key adipogenic regulators such as PPARGC1A, AKT2, and STK11. Notably, the circLMO7-bta-miR-2442-STK11 axis has been identified as a critical regulatory module. Experimental validation confirmed the circular conformation, temporal expression dynamics, and tissue-specific enrichment of circLMO7, particularly within intramuscular fat. Functional knockdown of circLMO7 in bovine preadipocytes resulted in the significant downregulation of adipogenic markers such as FABP4,SREBP1,C/EBPβ), indicating that circLMO7 acts as a positive regulator of adipogenesis.

conclusionsThis study identified a novel circLMO7 regulatory mechanism underlying the development of intramuscular fat in bovines and suggests promising molecular targets for genetic strategies aimed at enhancing meat quality. This study may serve as a foundation for studying the differential regulatory roles of ncRNAs in the development and function of adipose tissue.

Indexed as

AdipogenesisCell DifferentiationRNA, CircularAdipocytesAnimalsCattleGene Expression ProfilingGene Regulatory NetworksMicroRNAsMicroRNAsRNA, CircularCeRNA networkCircular RNAIntramuscular adipogenic differentiationRegulatory mechanism

Identifiers

PMID41388247
PMCPMC12817609

What Socratic holds

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LicenceCC BY-NC-ND
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Registered trials

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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.