Role of mammalian long non-coding RNAs in normal and neuro oncological disorders

Genomics. 2021 Sep;113(5):3250-3273. doi: 10.1016/j.ygeno.2021.07.015. Epub 2021 Jul 21.

Abstract

Long non-coding RNAs (lncRNAs) are expressed at lower levels than protein-coding genes but have a crucial role in gene regulation. LncRNA is distinct, they are being transcribed using RNA polymerase II, and their functionality depends on subcellular localization. Depending on their niche, they specifically interact with DNA, RNA, and proteins and modify chromatin function, regulate transcription at various stages, forms nuclear condensation bodies and nucleolar organization. lncRNAs may also change the stability and translation of cytoplasmic mRNAs and hamper signaling pathways. Thus, lncRNAs affect the physio-pathological states and lead to the development of various disorders, immune responses, and cancer. To date, ~40% of lncRNAs have been reported in the nervous system (NS) and are involved in the early development/differentiation of the NS to synaptogenesis. LncRNA expression patterns in the most common adult and pediatric tumor suggest them as potential biomarkers and provide a rationale for targeting them pharmaceutically. Here, we discuss the mechanisms of lncRNA synthesis, localization, and functions in transcriptional, post-transcriptional, and other forms of gene regulation, methods of lncRNA identification, and their potential therapeutic applications in neuro oncological disorders as explained by molecular mechanisms in other malignant disorders.

Keywords: Long noncoding RNA; Long read sequencing; Medulloblastoma; Neuro-oncology.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Child
  • Chromatin
  • Cytoplasm / metabolism
  • Gene Expression Regulation
  • Humans
  • Mammals / genetics
  • RNA, Long Noncoding* / metabolism
  • RNA, Messenger

Substances

  • Chromatin
  • RNA, Long Noncoding
  • RNA, Messenger