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The circular RNA circbabo(5,6,7,8S) regulates lipid metabolism and neuronal integrity via TGF-β/ROS/JNK/SREBP signaling axis in Drosophila.

Jie Sheng | Xuemei Zhang | Weihong Liang | Junfang Lyu | Bei Zhang | Jie Min | Austin Xu | Xingyu Xu | Jennifer W Li | Jian-Liang Li | Rui Zhou | Wei Liu
BMC biology | 2025

Lipid droplets (LDs) are dynamic cytoplasmic lipid-storing organelles that play a pivotal role in maintaining cellular energy balance, lipid homeostasis, and metabolic signaling. Dysregulation of lipid metabolism, particularly excessive lipogenesis, contributes to the abnormal accumulation of LDs in the nervous system, which is associated with several neurodegenerative diseases. Circular RNAs (circRNAs) are a new class of non-coding and regulatory RNAs that are widely expressed in eukaryotes. However, only a subset has been functionally characterized. Here, we identified and functionally characterized a new circular RNA circbabo(5,6,7,8S) that regulates lipogenesis and neuronal integrity in Drosophila melanogaster.

Pubmed ID: 40038674

Associated grants

  • Agency: NIAID NIH HHS, United States
    Id: R21 AI131099
  • Agency: NIH HHS, United States
    Id: 1R01AI140049
  • Agency: Scientific Research Foundation for Excellent Talents of Xuzhou Medical University,
    Id: D2022049, TD202404
  • Agency: NIAID NIH HHS, United States
    Id: R01 AI140049
  • Agency: NIAID NIH HHS, United States
    Id: R03 AI131068
  • Agency: Scientific Research Foundation for Excellent Talents of Xuzhou Medical University,
    Id: D2022048
  • Agency: Intramural NIH HHS, United States
    Id: ZIC ES103371
  • Agency: National Natural Science Foundation of China,
    Id: 32200622

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STAR (tool)

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Software performing alignment of high-throughput RNA-seq data. Aligns RNA-seq reads to reference genome using uncompressed suffix arrays.

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Bioconductor (tool)

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FlyBase (tool)

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Database of Drosophila genetic and genomic information with information about stock collections and fly genetic tools. Gene Ontology (GO) terms are used to describe three attributes of wild-type gene products: their molecular function, the biological processes in which they play a role, and their subcellular location. Additionally, FlyBase accepts data submissions. FlyBase can be searched for genes, alleles, aberrations and other genetic objects, phenotypes, sequences, stocks, images and movies, controlled terms, and Drosophila researchers using the tools available from the "Tools" drop-down menu in the Navigation bar.

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edgeR (tool)

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Bioconductor software package for Empirical analysis of Digital Gene Expression data in R. Used for differential expression analysis of RNA-seq and digital gene expression data with biological replication.

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w[*]; P{w[+mC]=UAS-bmm.EGFP}2 (organism)

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Drosophila melanogaster with name w[*]; P{w[+mC]=UAS-bmm.EGFP}2 from BDSC.

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y[1] v[1]; P{y[+t7.7] v[+t1.8]=TRiP.HMS02033}attP40 (organism)

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Drosophila melanogaster with name y[1] v[1]; P{y[+t7.7] v[+t1.8]=TRiP.HMS02033}attP40 from BDSC.

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y[1] w[67c23]; P{w[+mC]=UAS-babo.Q302D}3 (organism)

RRID:BDSC_64293

Drosophila melanogaster with name y[1] w[67c23]; P{w[+mC]=UAS-babo.Q302D}3 from BDSC.

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y[1] v[1]; P{y[+t7.7] v[+t1.8]=TRiP.HMS02033}attP40 (organism)

RRID:BDSC_40866

Drosophila melanogaster with name y[1] v[1]; P{y[+t7.7] v[+t1.8]=TRiP.HMS02033}attP40 from BDSC.

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y[1] w[67c23]; P{w[+mC]=UAS-babo.Q302D}3 (organism)

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Drosophila melanogaster with name y[1] w[67c23]; P{w[+mC]=UAS-babo.Q302D}3 from BDSC.

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w[*]; P{w[+mC]=UAS-bmm.EGFP}2 (organism)

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Drosophila melanogaster with name w[*]; P{w[+mC]=UAS-bmm.EGFP}2 from BDSC.

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w[1118]; wg[Sp-1]/CyO, P{w[+mC]=ActGFP}JMR1; SREBP[189]/TM6B, Tb[+] (organism)

RRID:BDSC_38393

Drosophila melanogaster with name w[1118]; wg[Sp-1]/CyO, P{w[+mC]=ActGFP}JMR1; SREBP[189]/TM6B, Tb[+] from BDSC.

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w[1118]; wg[Sp-1]/CyO, P{w[+mC]=ActGFP}JMR1; SREBP[189]/TM6B, Tb[+] (organism)

RRID:BDSC_38393

Drosophila melanogaster with name w[1118]; wg[Sp-1]/CyO, P{w[+mC]=ActGFP}JMR1; SREBP[189]/TM6B, Tb[+] from BDSC.

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