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Imprinted small nucleolar RNAs: Missing link in development and disease?

Kishor Gawade1,2, Katarzyna D Raczynska1,2

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Small nucleolar RNAs (snoRNAs) at the 14q32.2 locus are linked to developmental disorders like Kagami-Ogata syndrome and Temple syndrome. Further research is needed to understand their roles in these conditions.

Keywords:
SNORD113-SNORD114cancersimprintingneurodevelopmental disorderssnoRNAs

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Area of Science:

  • Genetics and Molecular Biology
  • Developmental Biology
  • RNA Biology

Background:

  • The 14q32.2 (DLK1-DIO3) and 15q11-q13 (SNURF-SNRPN) imprinted loci contain large small nucleolar RNA (snoRNA) clusters.
  • SNORD115-SNORD116 C/D box snoRNAs at 15q11-q13 are implicated in Prader-Willi syndrome, a neurodevelopmental disorder.

Purpose of the Study:

  • To explore the link between C/D box snoRNA expression from the imprinted 14q32.2 locus and developmental disorders.
  • To investigate the potential roles of the SNORD113-SNORD114 cluster deletion in Kagami-Ogata syndrome and its upregulation in Temple syndrome.

Main Methods:

  • Literature review and synthesis of current understanding.
  • Analysis of existing data on snoRNA expression and imprinting.
  • Categorization of the article under relevant scientific domains.

Main Results:

  • The SNORD113-SNORD114 cluster at 14q32.2 is associated with developmental processes, cancers, and RNA modifications.
  • The specific effects of SNORD113-SNORD114 cluster deletion or upregulation in Kagami-Ogata syndrome and Temple syndrome require further investigation.

Conclusions:

  • There is a potential link between developmental disorders and C/D box snoRNA expression from the imprinted 14q32.2 locus.
  • Further research is warranted to elucidate the precise roles of these snoRNAs in neurodevelopmental and imprinting disorders.