Monosome Stalls the Translation Process Mediated by IGF2BP in Arcuate Nucleus for Puberty Onset Delay.
ARC
Hypothalamus
IGF2BP2
Monosome
Puberty
Ribosome
Translation regulation
Journal
Molecular neurobiology
ISSN: 1559-1182
Titre abrégé: Mol Neurobiol
Pays: United States
ID NLM: 8900963
Informations de publication
Date de publication:
05 Sep 2024
05 Sep 2024
Historique:
received:
30
10
2023
accepted:
09
08
2024
medline:
5
9
2024
pubmed:
5
9
2024
entrez:
5
9
2024
Statut:
aheadofprint
Résumé
Puberty onset through hypothalamic-pituitary-gonad (HPG) axis as an important reproductive event in postnatal development is initiated from hypothalamic arcuate nucleus (ARC). The growing evidence indicates that translational control also plays an essential role in the final expression of gonadotropin genes. To investigate the role of protein translation and behavior of ribosomes in pubertal onset, the global profiles of transcriptome, single ribosome (monosome), polysome, and tandem mass tag proteome were comprehensively investigated in rat hypothalamic ARCs of different pubertal stages using RNA sequencing, polyribo sequencing, and mass spectrum. Transcriptome-wide enrichments of N6-methyladenosine and IGF2BP2 were investigated using meRIP and RIP sequencing. Monosome was robustly enriched on a large proportion of mRNA in early puberty rats (postnatal day (PND)-25) compared to late puberty (PND-35 and PND-45). Monosome-enriched mRNAs, including HPG axis-related genes, had a large number of upstream ORFs (uORF, < 100 nt) and displayed translational repression in early puberty. Furthermore, insulin-like growth factor 2 mRNA binding protein 2 (IGF2BP2) could particularly interact with and facilitate monosome to bind with mRNA in early puberty. Finally, ectopic over-expression of IGF2BP2 in hypothalamic ARC via lateral ventricle injection in vivo could recruit monosome to aggregate on mRNA and delay puberty onset. We uncovered a novel regulatory mechanism of IGF2BP2 and monosome for translational control in puberty onset, which shed light on the neuroendocrine regulatory network involved in HPG axis activation.
Identifiants
pubmed: 39235646
doi: 10.1007/s12035-024-04450-8
pii: 10.1007/s12035-024-04450-8
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : National Natural Science Foundation of China
ID : 82201797
Organisme : Natural Science Foundation of Shanghai Municipality
ID : 22ZR1451900
Organisme : Jiangsu Province High-level Innovation and Entrepreneurship Talent Plan
ID : JSSCBS20222022
Organisme : Suzhou Science and Technology Planning Project
ID : SKYD2022023
Organisme : Suzhou Science and Technology Planning Project
ID : SKJY2021016
Organisme : Gusu Health Talent Training Project
ID : GSWS2019087
Organisme : Gusu Health Talent Training Project
ID : GSWS2022111
Organisme : Science and Technology Planning Fund of Affiliated Hospital of Xuzhou Medical University
ID : XYFY202219
Organisme : Science and Technology Planning Fund of Affiliated Hospital of Xuzhou Medical University
ID : XYFY202306
Organisme : Science and Technology Planning Fund of Affiliated Hospital of Xuzhou Medical University
ID : XYFM202217
Organisme : Program of Developing Public Health through Science and Education of Wujiang District, Suzhou
ID : wwk202306
Organisme : Russian Science Foundation
ID : 24-24-00563
Informations de copyright
© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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