Drosophila Regnase-1 RNase is required for mRNA and miRNA profile remodelling during larva-to-adult metamorphosis

Li Zhu, Susan E. Liao, Ryuya Fukunaga

Research output: Contribution to journalArticle

Abstract

Metamorphosis is an intricate developmental process in which large-scale remodelling of mRNA and microRNA (miRNA) profiles leads to orchestrated tissue remodelling and organogenesis. Whether, which, and how, ribonucleases (RNases) are involved in the RNA profile remodelling during metamorphosis remain unknown. Human Regnase-1 (also known as MCPIP1 and Zc3h12a) RNase remodels RNA profile by cleaving specific RNAs and is a crucial modulator of immune-inflammatory and cellular defence. Here, we studied Drosophila CG10889, which we named Drosophila Regnase-1, an ortholog of human Regnase-1. The larva-to-adult metamorphosis in Drosophila includes two major transitions, larva-to-pupa and pupa-to-adult. regnase-1 knockout flies developed until the pupa stage but could not complete pupa-to-adult transition, dying in puparium case. Regnase-1 RNase activity is required for completion of pupa-to-adult transition as transgenic expression of wild-type Drosophila Regnase-1, but not the RNase catalytic-dead mutants, rescued the pupa-to-adult transition in regnase-1 knockout. High-throughput RNA sequencing revealed that regnase-1 knockout flies fail to remodel mRNA and miRNA profiles during the larva-to-pupa transition. Thus, we uncovered the roles of Drosophila Regnase-1 in the larva-to-adult metamorphosis and large-scale remodelling of mRNA and miRNA profiles during this metamorphosis process.

Original languageEnglish (US)
JournalRNA Biology
DOIs
StatePublished - Jan 1 2019

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Pupa
Ribonucleases
MicroRNAs
Drosophila
Larva
Messenger RNA
RNA
Diptera
High-Throughput Nucleotide Sequencing
Organogenesis

Keywords

  • drosophila
  • metamorphosis
  • miRNA
  • mRNA
  • Regnase-1
  • RNase

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology

Cite this

Drosophila Regnase-1 RNase is required for mRNA and miRNA profile remodelling during larva-to-adult metamorphosis. / Zhu, Li; Liao, Susan E.; Fukunaga, Ryuya.

In: RNA Biology, 01.01.2019.

Research output: Contribution to journalArticle

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